The Body Fat Setpoint, Part IV: Changing the Setpoint

Prevention is Easier than Cure

Experiments in animals have confirmed what common sense suggests: it's easier to prevent health problems than to reverse them. Still, many health conditions can be improved, and in some cases reversed, through lifestyle interventions. It's important to have realistic expectations and to be kind to oneself. Cultivating a drill sergeant mentality will not improve quality of life, and isn't likely to be sustainable.

Fat Loss: a New Approach

If there's one thing that's consistent in the medical literature, it's that telling people to eat fewer calories does not help them lose weight in the long term. Gary Taubes has written about this at length in his book Good Calories, Bad Calories, and in his upcoming book on body fat. Many people who use this strategy see transient fat loss, followed by fat regain and a feeling of defeat. There's a simple reason for it: the body doesn't want to lose weight. It's extremely difficult to fight the fat mass setpoint, and the body will use every tool it has to maintain its preferred level of fat: hunger, reduced body temperature, higher muscle efficiency (i.e., less energy is expended for the same movement), lethargy, lowered immune function, et cetera.

Therefore, what we need for sustainable fat loss is not starvation; we need a treatment that lowers the fat mass setpoint. There are several criteria that this treatment will have to meet to qualify:

1. It must cause fat loss
2. It must not involve deliberate calorie restriction
3. It must maintain fat loss over a long period of time
4. It must not be harmful to overall health
   

I also prefer strategies that make sense from the perspective of human evolution.

Strategies: Diet Pattern

The most obvious treatment that fits all of my criteria is low-carbohydrate dieting. Overweight people eating low-carbohydrate diets generally lose fat and spontaneously reduce their calorie intake. In fact, in several diet studies, investigators compared an all-you-can-eat low-carbohydrate diet with a calorie-restricted low-fat diet. The low-carbohydrate dieters generally reduced their calorie intake and body fat to a similar or greater degree than the low-fat dieters, despite the fact that they ate all the calories they wanted (1). This suggest that their fat mass setpoint had changed. At this point, I think moderate carbohydrate restriction may be preferable to strict carbohydrate restriction for some people, due to the increasing number of reports I've read of people doing poorly in the long run on extremely low-carbohydrate diets (2).

Another strategy that appears effective is the "paleolithic" diet. In Dr. Staffan Lindeberg's 2007 diet study, overweight volunteers with heart disease lost fat and reduced their calorie intake to a remarkable degree while eating a diet consistent with our hunter-gatherer heritage (3). This result is consistent with another diet trial of the paleolithic diet in diabetics (4). In post hoc analysis, Dr. Lindeberg's group showed that the reduction in weight was apparently independent of changes in carbohydrate intake*. This suggests that the paleolithic diet has health benefits that are independent of carbohydrate intake.

Strategies: Gastrointestinal Health

Since the gastrointestinal (GI) tract is so intimately involved in body fat metabolism and overall health (see the former post), the next strategy is to improve GI health. There are a number of ways to do this, but they all center around four things:

1. Don't eat food that encourages the growth of harmful bacteria
2. Eat food that encourages the growth of good bacteria
3. Don't eat food that impairs gut barrier function
4. Eat food that promotes gut barrier health

The first one is pretty easy: avoid refined sugar, refined carbohydrate in general, and lactose if you're lactose intolerant. For the second and fourth points, make sure to eat fermentable fiber. In one trial, oligofructose supplements led to sustained fat loss, without any other changes in diet (5). This is consistent with experiments in rodents showing improvements in gut bacteria profile, gut barrier health, glucose tolerance and body fat mass with oligofructose supplementation (6, 7, 8).

Oligofructose is similar to inulin, a fiber that occurs naturally in a wide variety of plants. Good sources are jerusalem artichokes, jicama, artichokes, onions, leeks, burdock and chicory root. Certain non-industrial cultures had a high intake of inulin. There are some caveats to inulin, however: inulin and oligofructose can cause gas, and can also exacerbate gastroesophageal reflux disorder (9). So don't eat a big plate of jerusalem artichokes before that important date.

The colon is packed with symbiotic bacteria, and is the site of most intestinal fermentation. The small intestine contains fewer bacteria, but gut barrier function there is critical as well. The small intestine is where the GI doctor will take a biopsy to look for celiac disease. Celiac disease is a degeneration of the small intestinal lining due to an autoimmune reaction caused by gluten (in wheat, barley and rye). This brings us to one of the most important elements of maintaining gut barrier health: avoiding food sensitivities. Gluten and casein (in dairy protein) are the two most common offenders. Gluten sensitivity is widespread and typically undiagnosed (10).

Eating raw fermented foods such as sauerkraut, kimchi, yogurt and half-sour pickles also helps maintain the integrity of the upper GI tract. I doubt these have any effect on the colon, given the huge number of bacteria already present. Other important factors in gut barrier health are keeping the ratio of omega-6 to omega-3 fats in balance, eating nutrient-dense food, and avoiding the questionable chemical additives in processed food. If triglycerides are important for leptin sensitivity, then avoiding sugar and ensuring a regular source of omega-3 should aid weight loss as well.

Strategies: Micronutrients

As I discussed in the last post, micronutrient deficiency probably plays a role in obesity, both in ways that we understand and ways that we (or I) don't. Eating a diet that has a high nutrient density and ensuring a good vitamin D status will help any sustainable fat loss strategy. The easiest way to do this is to eliminate industrially processed foods such as white flour, sugar and seed oils. These constitute more than 50% of calories for the average Westerner.

After that, you can further increase your diet's nutrient density by learning to properly prepare grains and legumes to maximize their nutritional value and digestibility (11, 12; or by avoiding grains and legumes altogether if you wish), selecting organic and/or pasture-raised foods if possible, and eating seafood including seaweed. One of the problems with extremely low-carbohydrate diets is that they may be low in water-soluble micronutrients, although this isn't necessarily the case.

Strategies: Miscellaneous

In general, exercise isn't necessarily helpful for fat loss. However, there is one type of exercise that clearly is: high-intensity intermittent training (HIIT). It's basically a fancy name for sprints. They can be done on a track, on a stationary bicycle, using weight training circuits, or any other way that allows sufficient intensity. The key is to achieve maximal exertion for several brief periods, separated by rest. This type of exercise is not about burning calories through exertion: it's about increasing hormone sensitivity using an intense, brief stressor (hormesis). Even a ridiculously short period of time spent training HIIT each week can result in significant fat loss, despite no change in diet or calorie intake (13).

Anecdotally, many people have had success using intermittent fasting (IF) for fat loss. There's some evidence in the scientific literature that IF and related approaches may be helpful (14). There are different approaches to IF, but a common and effective method is to do two complete 24-hour fasts per week. It's important to note that IF isn't about restricting calories, it's about resetting the fat mass setpoint. After a fast, allow yourself to eat quality food until you're no longer hungry.

Insufficient sleep has been strongly and repeatedly linked to obesity. Whether it's a cause or consequence of obesity I can't say for sure, but in any case it's important for health to sleep until you feel rested. If your sleep quality is poor due to psychological stress, meditating before bedtime may help. I find that meditation has a remarkable effect on my sleep quality. Due to the poor development of oral and nasal structures in industrial nations, many people do not breathe effectively and may suffer from conditions such as sleep apnea that reduce sleep quality. Overweight also contributes to these problems.

I'm sure there are other useful strategies, but that's all I have for now. If you have something to add, please put it in the comments.


* Since reducing carbohydrate intake wasn't part of the intervention, this result is observational.

The Body Fat Setpoint, Part IV: Changing the Setpoint

Prevention is Easier than Cure

Experiments in animals have confirmed what common sense suggests: it's easier to prevent health problems than to reverse them. Still, many health conditions can be improved, and in some cases reversed, through lifestyle interventions. It's important to have realistic expectations and to be kind to oneself. Cultivating a drill sergeant mentality will not improve quality of life, and isn't likely to be sustainable.

Fat Loss: a New Approach

If there's one thing that's consistent in the medical literature, it's that telling people to eat fewer calories does not help them lose weight in the long term. Gary Taubes has written about this at length in his book Good Calories, Bad Calories, and in his upcoming book on body fat. Many people who use this strategy see transient fat loss, followed by fat regain and a feeling of defeat. There's a simple reason for it: the body doesn't want to lose weight. It's extremely difficult to fight the fat mass setpoint, and the body will use every tool it has to maintain its preferred level of fat: hunger, reduced body temperature, higher muscle efficiency (i.e., less energy is expended for the same movement), lethargy, lowered immune function, et cetera.

Therefore, what we need for sustainable fat loss is not starvation; we need a treatment that lowers the fat mass setpoint. There are several criteria that this treatment will have to meet to qualify:

1. It must cause fat loss
2. It must not involve deliberate calorie restriction
3. It must maintain fat loss over a long period of time
4. It must not be harmful to overall health
   

I also prefer strategies that make sense from the perspective of human evolution.

Strategies: Diet Pattern

The most obvious treatment that fits all of my criteria is low-carbohydrate dieting. Overweight people eating low-carbohydrate diets generally lose fat and spontaneously reduce their calorie intake. In fact, in several diet studies, investigators compared an all-you-can-eat low-carbohydrate diet with a calorie-restricted low-fat diet. The low-carbohydrate dieters generally reduced their calorie intake and body fat to a similar or greater degree than the low-fat dieters, despite the fact that they ate all the calories they wanted (1). This suggest that their fat mass setpoint had changed. At this point, I think moderate carbohydrate restriction may be preferable to strict carbohydrate restriction for some people, due to the increasing number of reports I've read of people doing poorly in the long run on extremely low-carbohydrate diets (2).

Another strategy that appears effective is the "paleolithic" diet. In Dr. Staffan Lindeberg's 2007 diet study, overweight volunteers with heart disease lost fat and reduced their calorie intake to a remarkable degree while eating a diet consistent with our hunter-gatherer heritage (3). This result is consistent with another diet trial of the paleolithic diet in diabetics (4). In post hoc analysis, Dr. Lindeberg's group showed that the reduction in weight was apparently independent of changes in carbohydrate intake*. This suggests that the paleolithic diet has health benefits that are independent of carbohydrate intake.

Strategies: Gastrointestinal Health

Since the gastrointestinal (GI) tract is so intimately involved in body fat metabolism and overall health (see the former post), the next strategy is to improve GI health. There are a number of ways to do this, but they all center around four things:

1. Don't eat food that encourages the growth of harmful bacteria
2. Eat food that encourages the growth of good bacteria
3. Don't eat food that impairs gut barrier function
4. Eat food that promotes gut barrier health

The first one is pretty easy: avoid refined sugar, refined carbohydrate in general, and lactose if you're lactose intolerant. For the second and fourth points, make sure to eat fermentable fiber. In one trial, oligofructose supplements led to sustained fat loss, without any other changes in diet (5). This is consistent with experiments in rodents showing improvements in gut bacteria profile, gut barrier health, glucose tolerance and body fat mass with oligofructose supplementation (6, 7, 8).

Oligofructose is similar to inulin, a fiber that occurs naturally in a wide variety of plants. Good sources are jerusalem artichokes, jicama, artichokes, onions, leeks, burdock and chicory root. Certain non-industrial cultures had a high intake of inulin. There are some caveats to inulin, however: inulin and oligofructose can cause gas, and can also exacerbate gastroesophageal reflux disorder (9). So don't eat a big plate of jerusalem artichokes before that important date.

The colon is packed with symbiotic bacteria, and is the site of most intestinal fermentation. The small intestine contains fewer bacteria, but gut barrier function there is critical as well. The small intestine is where the GI doctor will take a biopsy to look for celiac disease. Celiac disease is a degeneration of the small intestinal lining due to an autoimmune reaction caused by gluten (in wheat, barley and rye). This brings us to one of the most important elements of maintaining gut barrier health: avoiding food sensitivities. Gluten and casein (in dairy protein) are the two most common offenders. Gluten sensitivity is widespread and typically undiagnosed (10).

Eating raw fermented foods such as sauerkraut, kimchi, yogurt and half-sour pickles also helps maintain the integrity of the upper GI tract. I doubt these have any effect on the colon, given the huge number of bacteria already present. Other important factors in gut barrier health are keeping the ratio of omega-6 to omega-3 fats in balance, eating nutrient-dense food, and avoiding the questionable chemical additives in processed food. If triglycerides are important for leptin sensitivity, then avoiding sugar and ensuring a regular source of omega-3 should aid weight loss as well.

Strategies: Micronutrients

As I discussed in the last post, micronutrient deficiency probably plays a role in obesity, both in ways that we understand and ways that we (or I) don't. Eating a diet that has a high nutrient density and ensuring a good vitamin D status will help any sustainable fat loss strategy. The easiest way to do this is to eliminate industrially processed foods such as white flour, sugar and seed oils. These constitute more than 50% of calories for the average Westerner.

After that, you can further increase your diet's nutrient density by learning to properly prepare grains and legumes to maximize their nutritional value and digestibility (11, 12; or by avoiding grains and legumes altogether if you wish), selecting organic and/or pasture-raised foods if possible, and eating seafood including seaweed. One of the problems with extremely low-carbohydrate diets is that they may be low in water-soluble micronutrients, although this isn't necessarily the case.

Strategies: Miscellaneous

In general, exercise isn't necessarily helpful for fat loss. However, there is one type of exercise that clearly is: high-intensity intermittent training (HIIT). It's basically a fancy name for sprints. They can be done on a track, on a stationary bicycle, using weight training circuits, or any other way that allows sufficient intensity. The key is to achieve maximal exertion for several brief periods, separated by rest. This type of exercise is not about burning calories through exertion: it's about increasing hormone sensitivity using an intense, brief stressor (hormesis). Even a ridiculously short period of time spent training HIIT each week can result in significant fat loss, despite no change in diet or calorie intake (13).

Anecdotally, many people have had success using intermittent fasting (IF) for fat loss. There's some evidence in the scientific literature that IF and related approaches may be helpful (14). There are different approaches to IF, but a common and effective method is to do two complete 24-hour fasts per week. It's important to note that IF isn't about restricting calories, it's about resetting the fat mass setpoint. After a fast, allow yourself to eat quality food until you're no longer hungry.

Insufficient sleep has been strongly and repeatedly linked to obesity. Whether it's a cause or consequence of obesity I can't say for sure, but in any case it's important for health to sleep until you feel rested. If your sleep quality is poor due to psychological stress, meditating before bedtime may help. I find that meditation has a remarkable effect on my sleep quality. Due to the poor development of oral and nasal structures in industrial nations, many people do not breathe effectively and may suffer from conditions such as sleep apnea that reduce sleep quality. Overweight also contributes to these problems.

I'm sure there are other useful strategies, but that's all I have for now. If you have something to add, please put it in the comments.


* Since reducing carbohydrate intake wasn't part of the intervention, this result is observational.

As Records Go Digital, Cultures Clash - Part 2

At "As Records Go Digital, Cultures Clash, Bringing to Life Secrets the Health IT Companies Don't Want You to Know" I wrote of the used-car nature of the healthcare IT market, where lemon laws do not seem to exist and "physician buyer beware" seems a defining characteristic.

The Huffington Post Investigative Fund now has a report of their own on this phenomenon:

Shopping for Health Software, Some Doctors Get Buyer’s Remorse

By Emma Schwartz
Huffington Post Investigative Fund
Jan. 29, 2010

Computerizing American medical records within five years is a key goal of federal health policymakers, but disputes between some doctors and their technology vendors highlight the many challenges for individual medical practices making the conversion.

Bankrupt vendors leaving orphan software and inaccessible data, vendors misappropriating others' software for their own products, fights over source code, and "doctors left holding the bag" are just a few of the factors that clinicians have to face.

A nightmare scenario:

Robert Cameron wasn’t much of a technology buff, but the orthopedic surgeon knew he wanted to get rid of all the paper in his nine-physician practice in Pensacola, Fla. So he bought an electronic medical records system from a California-based company called Acermed.

Cameron’s group spent more than $400,000 on the software, but the system still never fully worked and even confused patients’ scheduled visits, according to a lawsuit the doctors filed against the technology company in 2006. Acermed filed for bankruptcy in September 2007, complicating the doctors’ attempts to recover their expenses.

The effort to go digital “was a disaster,” Cameron says now.

... Cameron’s Florida doctors group, Gulf Coast Orthopaedic Specialists, looked at half a dozen companies before signing with Acermed in April 2005. After installing the first part of the system, they alleged in their lawsuit, the scheduling software “malfunctioned causing patient appointment[s] to disappear.” Also, the billing system was not feeding claims back to insurers, which over the next six months nearly ran the practice into bankruptcy itself, the complaint alleged.

[Perhaps an ancient TRS-80 programmed by a medical student in Microsoft BASIC would have done better? - ed.]

Gulf Coast doctors continued to alert Acermed to the problems, but the company was unable to fix them, the lawsuit stated. They weren’t the only ones having trouble. Two other doctor groups—one in Florida, another in Tennessee—had also filed suit against Acermed, alleging similar problems. Gulf Coast filed its suit in October 2006. Acermed stated in court documents that the doctors had no basis for their claim.

[In other words, disappearing appointments and failed billing never happened and it was all in the doctors' imagination - ed.]

As it turned out, Acermed had been dealing with problems of its own. In July 2006, a federal judge ordered Acermed to pay more than $750,000 for using some of the source code from another vendor it had once worked with to develop its own electronic medical record software in 2004.

[In other words, the company misappropriated part of its computer program from elsewhere - ed.]

Gulf Coast’s lawsuit was still pending when, in September 2007, Acermed filed for bankruptcy. Company officials at the time said that the reason for their bankruptcy was the financial impact of legal bills, not problems with their software.

In January 2008, Ophthalmic Imaging Systems of Sacramento, Calif., bought Acermed and renamed it Abraxas Medical Solutions with Acermed’s former chief executive Michael Bina as president.

In an email, Bina said he does not “represent AcerMed any more and would not like to comment on its behalf.” He said that one of his conditions for joining Abraxas had been that it continued to service Acermed customers, and that “many clients” of AcerMed have stayed with the new company.

[A musical chairs question - who, then, does represent the old company if not the president of the company that now supports the old company's products? - ed.]

One of those clients, Tony Cattone, general manager of a 70-doctor medical practice in New Jersey, said in an interview, “they have lived up to their commitments and it’s working fine.”

[Until the new company does the same as the old, that is - ed.]

Several other doctors said they were left with loan payments for a system they never received.

And today, the Gulf Coast group still hasn’t entirely gotten rid of paper. In December 2008, the doctors settled their lawsuit with Acermed for an undisclosed amount. They invested in a different electronic system, but the doctors aren’t entirely happy with the new one either, said Alan Trest, the group’s technology manager. With the current system, doctors have to type rather than dictate notes. Some aren’t willing to make that transition because they say it takes them more time. So the group still pays for transcriptions.

“They haven’t really completely bought into the idea,” Trest said.

See the full story at the above link.

I note that "revolutionizing medicine" via IT still seems somewhat unlikely when the IT industry conducts itself more poorly than the used car industry.

-- SS

What Happens When "We'll Manage it the Way We Damn Well Want"

Back in the early days of Health Care Renewal (2005, to be exact), we first wrote about some very strange actions by the management of Phoebe Putney Health System.  At first, we noted that the Phoebe Putney responded to a reporter's inquiry about lavish travel expenses pertaining to the system's Cayman Islands health insurance subsidiary by saying, "We own it. We'll manage it the way we damn well want."

Then the story got far more convoluted.  In 2006, we wrote about the over the top response to anonymous faxes challenged hospital management's commitment to the institution's mission.  The system CEO compared the fax senders to "terrorists."  After the local district attorney handed over his investigative records to hospital system private investigators, the investigators allegedly threatened a local accountant whom they accused of sending the faxes.  Allegations that the district attorney received campaign funding from and may have had other financial ties to the hospital system surfaced.  The district attorney indicted the accountant and a physician colleague on charges of burglary and assault in the absence of any police report of such crimes.  We commented that regardless of the outcomes of the legal case, the hospital system's management's actions seemed at variance with its stated mission.

Now, in 2010, the case is in the news again.  Since our last post, according to the Atlanta Journal-Constitution, the prosecution of the accountant, Mr Charles Rehberg, and physician, Dr John Bagnato, failed.  The district attorney, Ken Hodges,

provided the information gathered through the subpoenas to Phoebe Putney, which the hospital system used to file a civil suit against Rehberg and Bagnato -- a suit that was ultimately dropped. Rehberg then countersued Phoebe Putney, and that case was settled out of court for an undisclosed sum.

Meanwhile, more ties between Hodges and the Pheobe Putney system turned up:

Hodges' decision to run for attorney general elevated the case from a localized matter to one of statewide import. While still a prosecutor in Albany, Hodges received political contributions from Phoebe Putney executives and individuals connected to the hospital system, and his wife was hired as public affairs manager at Phoebe Putney's hospital in Albany.

Since leaving the prosecutor's office in Dougherty County, Hodges has gone to work for the Baudino Law Group, which represents Phoebe Putney. According to records Phoebe Putney must file with the Internal Revenue Service, the hospital system paid Baudino more than $8 million for the fiscal year ending July 31, 2008, the most recent data available.

Now, it is Rehberg who is suing Hodges, for abuse of power. "Charles Rehberg's suuit essentially accuses him and another prosecutor of filing criminal chargest that they knew to be based on fabricated information." A preliminary hearing took place yesterday.

So, in summary, two individuals sent anonymous faxes that charged that the Phoebe Putney system failed "to fulfill its charitable obligations as tax-exempt entity."  Hospital system executives accused them of terrorism, and hospital system investigators allegedly threatened them.  However, a criminal investigation by a district attorney with alleged financial ties to the hospital system ended without any convictions.  A lawsuit by the system against the individuals was dropped.  A suit by the indviduals against the hospital system was settled by the system.  A suit by the individuals charging that the then district attorney abused his power by basing criminal charges on false information is pending. 

So what did the hospital system's management's actions in this case have to do with the system's stated values? -

Phoebe pursues its mission through a patient-centered environment of care reflecting high standards and promoting a balance of professional preparation and service, continuous improvement and based on core values where:

* PEOPLE come first, are treated with dignity and respect, and diversity of culture and thought is respected.
* RELATIONSHIPS are built on honesty and integrity.
* REPUTATION is built on trust and pride.

In fact, the Phoebe Putney management's pursuit of Mr Rehberg and Dr Bagnato seems diametrically opposed to these values, intended to crush all criticism of management by any means. Once again, we see leaders of once-respected not-for-profit health care institutions whose main goal seems to be consolidating their power and thwarting criticism.

I say again, to truly reform health care, our health care organizations must be lead by those who put the institutions' missions ahead of their self-interest, who manage according to the mission rather than "the way we damn well want."

Why The Apple iPad Will Not Revolutionize, Change the Game, Transform or Create New Paradigms in Medicine Anytime Soon

The announcement of the Apple iPad has been accompanied by the usual irrationally exuberant, buzzword-laden statements and bellicose grandiosity from the IT punditry about how it will "revolutionize" or "transform" medicine.

However, this will not occur anytime soon, for in medicine, the device may help solve a portability and visibility problem (compared to PDA's), but it will not solve this problem: the mission hostile user experience.

The solution to that problem will require significant human magic.

-- SS

More California Medical Centers Plagued by Quality Problems While Their Executives Get Bonuses for "Improved Patient Care"

Earlier this week, we noted that while executives at one University of California medical center were getting large bonuses supposedly for "improved patient health," the hospital was being cited for serious health care quality deficiencies.  Now, more stories have appeared that raise questions about the rationale for the generous bonuses handed out to multiple top hospital executives at University of California hospitals. 

University of California - San Diego

First, in alphabetical order by city, the San Diego Union-Tribune reported on penalties for poor quality care announced by the California Department of Public Health:

UCSD Medical Center in San Diego was fined $50,000.... The state said the hospital staff failed to follow its surgical policies and procedures, which resulted in a patient having to have a second surgery to remove a foreign object — a guide wire that was left in the patient when a central venous catheter was inserted into the patient’s right femoral vein in the groin area in January 2009. The wire migrated into a chamber of the patient’s heart.

The procedure was done by a first-year intern and supervised by a third-year resident.

This marks the third time the state has penalized UCSD, with the first penalty issued in May 2008 and the second in May 2009.

However, a few days earlier, the Union-Tribune had reported:

Despite criticism from union leaders and rank-and-file employees, University of California regents yesterday overwhelmingly approved $3.1 million in incentive payouts to 38 medical center executives.

The payouts mean, for instance, that former UC San Diego Medical Center CEO Richard Liekweg will receive $136,174 in performance pay for the last fiscal year, added to his base of $660,500.

Regents justified the payments by noting that incentive programs are common in the health care industry, and necessary to compete for top talent.

'It’s the way this industry works,' said Regent William De La Pena, an ophthalmologist and medical director of eye clinics throughout Southern California.

At UCSD Medical Center, 10 senior managers will receive a combined $754,650 for surpassing goals set in areas ranging from improved patient safety to increased revenue. The bonuses amount to 14 to 23 percent added to executives’ salaries.

University of California - San Francisco
Meanwhile, the San Francisco Chronicle reported that a major University of California - San Francisco teaching hospital was also cited by the state Department of Public Health for quality problems:

San Francisco General was fined $25,000 for leaving a piece of surgical gauze in a patient who underwent an eight-hour operation for two types of cancer in September 2008. The foreign object was discovered about three months later and was removed without surgery during an office visit.

The Chronicle also reported a possibly major breach in the confidentiality of patient records at the UCSF Medical Center:

Medical records for about 4,400 UCSF patients are at risk after thieves stole a laptop from a medical school employee in November, UCSF officials said Wednesday.

The laptop, which was stolen on or about Nov. 30 from a plane as the employee was traveling, was found in Southern California on Jan. 8.

There is no indication that unauthorized access to the files or the laptop actually took place, UCSF officials said, but patients' names, medical record numbers, ages and clinical information were potentially exposed.

The security breach is UCSF's second in recent months. Last month, UCSF officials revealed that a faculty physician responding to an Internet 'phishing' scam potentially exposed the personal information of about 600 patients.

However, despite these obvious quality problems, the San Francisco Business Times reported

University of California regents approved $500,000 in bonuses to six top officials at the UC San Francisco Medical Center, part of a package of $3.1 million in payments to 38 hospital executives across the UC system.

In an interview last week with UCSF Chancellor Susan Desmond-Hellman, she said that the executive bonuses were tied to meeting specific performance goals, such as reducing clinical infections and increasing satisfaction ratings by patients. She also pointed out that additional payments of $14.3 million to the UCSF Medical Center’s 6,600-strong workforce were approved earlier.

The UCSF officials awarded bonuses were:

* Mark Laret, chief executive officer, $181,227;
* Ken Jones, chief financial officer, interim chief operating officer, $89,162;
* Larry Lotenero, chief information officer, $66,045;
* John Harris, chief strategy and business development officer, $63,196;
* Susan Moore, finance director and interim chief financial officer, $53,261; and
* Sheila Antrum, chief nursing/patient care services officer, $49,280.

Summary

So, in summary, multiple executives at three major University of California medical centers received generous bonuses.  The rationale for these bonuses, given out at a time when the university system was under major financial constraints, was that they were incentives for exemplary performance and patient care. 

Yet almost simultaneous with announcement of the bonuses were news reports indicating serious patient care problems at the same medical centers.  The point I am NOT trying to make is that the care at any of these medical centers is bad.  The examples of quality problems were limited.  I am sure that many other major medical centers hae had such quality problems as well.  However, the cases cited above were sufficient to argue that the care at these medical centers was not outstanding, not exemplary.  Yet, the bonuses were awarded not for acceptable performance or average quality.  Their rationale was exceptional performance and quality.  Thus, the rationale for the performance bonuses seems at best naive, if not foolish. 

I would suggest, instead, that the sorts of bonuses given out at the University of California are a product of the current management culture that has been infused into nearly every health care organization in the US.  That culture holds that managers are different from you and me.  They are entitled to a special share of other people's money.  Because of their innate and self-evident brilliance, they are entitled to become rich.  This entitlement exists even when the economy, or the financial performance of the specific organization prevents other people from making any economic progress.  This entitlement exists even if those other poeple actually do the work, and ultimately provide the money that sustains the organization. 

Although the executives of not-for-profit health care organizations generally make far less than executives of for-profit health care corporations, collectively, hired managers of even not-for-profit health care organizations have become richer and richer at a time when most Americans, including many health professionals, and most primary care physicians, have seen their incomes stagnate or fall.  They are less and less restrainted by passive, if not crony boards, and more and more unaccountable.  In a kind of multi-centric coup d'etat of the hired managers, they have become our new de facto aristocracy. 

Or as we wrote in our previous post, executive compensation in health care seems best described as Prof Mintzberg described compensation for finance CEOs, "All this compensation madness is not about markets or talents or incentives, but rather about insiders hijacking established institutions for their personal benefit." As it did in finance, compensation madness is likely to keep the health care bubble inflating until it bursts, with the expected adverse consequences. Meanwhile, I say again, if health care reformers really care about improving access and controlling costs, they will have to have the courage to confront the powerful and self-interested leaders who benefit so well from their previously mission-driven organizations.  It is time to reverse the coup d'etat of the hired managers.

Drowning our Sorrows in Ketchup: Novartis Settles, Appoints Former Heinz Executive CEO

Here's the latest corporate health care marcher in the legal settlement parade, as reported in the Wall Street Journal.

Swiss drug giant Novartis AG said its U.S. subsidiary struck a plea agreement with U.S. investigators to resolve criminal allegations regarding the company's promotion of the epilepsy drug Trileptal, and agreed to pay a $185 million fine.

Federal investigators have been carrying out civil and criminal investigations of Novartis' marketing of the drug, including allegations that it promoted the drug for uses for which it is not approved by the Food and Drug Administration, an illegal practice known as 'off-label' marketing, Novartis said in a statement Tuesday as it announced fourth-quarter results.

To resolve criminal allegations, Novartis said it agreed to plead guilty to a violation of the U.S. Food, Drug and Cosmetic Act, and to pay a fine of $185 million.

It has become a drearily familiar ritual. We have now discussed numerous instances of large health care corporations pleading guilty to criminal charges and/or settling civil allegations of unethical behavior.  In the current case, like nearly all the others, the corporation will pay what seems to be a huge fine.  However, the amount is a pittance compared to the corporation's revenue, and is likely to be viewed as only a small cost of doing a very lucrative business by corporate executives.  In very few cases does any individual suffer any negative consequence for approving, ordering or implementing the unethical behavior. 

Thus, I would argue that these cases remind us how unethical the health care "business" has become, but the way they have been resolved will fail to deter future bad behavior.  A large fine's impact can be spread among share-holders, employees, and clients/ customers/ patients, and hence poses no threat to executives planning the next bit of unethical behavior. 

In fact, the most notable aspect of the current case is that the corporation involved in not run out of the US, but rather out of Switzerland, showing that this pattern is not exclusively an American one.

There is an interesting juxtaposition to this case, however.  At the same time this settlement was announced, Novartis disclosed its new CEO.  A Wall Street Journal commentary opined, that the " New Novartis Chief Needs Surgery Skills."  Ironically, the new CEO is hardly a surgeon.  Here is a summary of his background.

Mr. Jimenez began his career in the United States at The Clorox Company, and later served as president of two operating divisions at ConAgra. In 1998, he joined the H.J. Heinz Company, and was named President and Chief Executive Officer of the North America business. From 2002 to 2006, he served as President and Chief Executive Officer of Heinz in Europe.

Before joining Novartis, he was a NonExecutive Director of Astra-Zeneca plc, United Kingdom, from 2002 to 2007; and was an advisor for the private equity organization Blackstone Group, United States. Mr. Jimenez joined Novartis in April 2007 as Head of the Consumer Health Division and was appointed to his present position in October 2007.

Mr. Jimenez graduated with a bachelor’s degree from Stanford University in 1982 and with an M.B.A. from the University of California, Berkeley, in 1984.

I would guess that all that expertise marketing ketchup will come in handly preventing the need for more settlements of illegal marketing practices.  Seriously, we have discussed the logic and evidence behind the assertion that health care corporations ought to be run by people with relevant experience and values.  We wish Mr Jimenez well, but hope that he realizes that if he is to prevent future events that could throw his company into disrepute, he ought to lean heavily on people who understand medicine and biomedical science, and who support physicians' core values.

More broadly, I again suggest that real US health care reform would need to deal with both these issues.  We need to have rigorous regulation of health care organizations that has the power to deter unethical behavior that may risk patients' health.  We need to have leaders of health care organizations who actually understand health care and share its values. 

Two hat tips to the PharmaGossip blog (here and here).

As Records Go Digital, Cultures Clash, Bringing to Life Secrets the Health IT Companies Don't Want You to Know

Yes, as records go digital, cultures clash: the culture of medicine, and the culture of the Barbary pirates.

The following story perhaps brings to life much of the advice from a candid HIT vendor (who happens to also be a physician) in my post "10 Secrets the EHR Companies Don't Want You to Know":

As Records Go Digital, Cultures Clash
By Sammy Mack, Health News Florida

Jan 22, 2010

A group of Broward County doctors looking to switch to electronic medical records say the result has been a massive headache: surprise charges, inadequate training and even blocked access to patient files.

... Experts say a culture clash between mid-career physicians and tech-savvy software vendors can translate into mismatched expectations. They tell the buyer to beware.

And with federal incentives now in play, they say there is bound to be further conflict.

“I get upset just talking about it,” said Dr. Arleen Richards, a Plantation physician and one of the doctors who signed a contract with Castranova. [An IT supplier - ed.] "When you look back in retrospect, you’re like, ‘how did this happen?’"

Physicians are too trusting of IT salespeople, that's how. I recommend considering an IT purchase as you would consider purchasing a used car.

Richards says Castranova promised a cheap, easy piece of software that would increase efficiency in filing insurance claims. The price tag: $10,000 plus the cost of some new computers.

... After signing up, Richards learned she would have to pay a $2,500 licensing fee for each provider in her office, to qualify for the stimulus funds. In addition, she said Castranova hit her with almost $15,000 in charges to install new computers--charges she didn't authorize. [cf. Secret #5: Determining how much a specific EHR costs is going to be difficult, and you are going to be nickel-and-dimed every step of the way! - ed.]

$10,000 for the software, plus previously undisclosed per-user licensing fees and $15,000 to install what are probably commodity computers available at Newegg for a few hundred dollars? If true, the term for this "gotcha" is: ripoff.

Castranova said he doesn’t understand how she could think the computer charges were unauthorized. After all, he said, someone had to let him into her office to install the machines.

A contract that clearly specifies such "materials and labor costs" is the standard when, say, a plumber fixes your toilet.

This is especially true when those costs exceed the cost of the product itself, the software. These IT added costs should always be presented to clients up-front, above board, in writing and in a manner that could not cause misconceptions or buyer's remorse. If this did not occur here, then that is a problem.

Another of the doctors in a tiff with Castranova, Fort Lauderdale internist Paul Preste claims Castranova didn't provide adequate training after installing the electronic records system.

Preste's office manager, Donna Golden, said there was a day-long training and that Castranova’s employees came to the office on a number of occasions, but she noted some practitioners had to start from scratch after decades of paper records.

One day of training on a complex information system? That is a joke.

In another complaint against Castranova, Dr. Linda Kaplan said she too was surprised by charges on her invoice. When they first met, Castranova recognized her as a former medical editor at the local NBC television affiliate. She said he offered to waive her software and training fees if she would endorse the product [cf. Secret #3: Even that EHR-using physician you've been referred to may have been paid off! -ed.]

Kaplan agreed, but she said she was unimpressed with the system once it was installed in her Hallandale Beach office. She was reluctant to drum up business when she wasn't a satisfied customer.

Kaplan said Castranova was displeased with her lackluster endorsement and locked her out of some 600 patient records on his server. He billed for the software system anyway. [cf. Secret #6: Your patient data will be a bargaining chip to prevent you from leaving an EHR company! - ed.]

"We are holding your patient information hostage. Pay up."

I sincerely hope for this vendor's sake that none of those 600 patients suffers an adverse outcome during the "records blackout." This information is not exactly chopped liver.

Here is perhaps the most concerning statement in the article:

No agency tracks electronic medical records disputes, but experts said feuds like these are not uncommon ... Linda McMullen of the Florida Medical Association said she's starting to hear similar stories of spats between doctors and software vendors.

As the government pushes health IT on to unwary physicians, physicians need to educate themselves on the wiles of the IT profession ... fast.

(HC Renewal and my academic site on HIT dysfunction are two examples of where to start.)

Advice in the article:

Maxwell, the software consultant, said doctors can avoid some of the grief by thoroughly researching their options before buying an electronic records system. She encouraged medical offices to shop around and set a five-year budget that includes the cost of scrapping a system if it doesn't work out.

Draw up an exit strategy for retrieving data if something goes wrong, she counseled. And get expert help reviewing contracts. [I note that data migration is never cheap, and never easy - ed.]

"The people that have had problems just went out and bought one (electronic medical records system)," she said, as opposed to researching the software and the company behind it.

Fine advice. However, this reality belays the arguments about health IT being a deterministic convenience, saving money and improving efficiency. IT is often a headache and a money pit in and of itself.

Physician buyer beware, indeed.

-- SS

Addendum Jan. 31:

Also see my comments on a Huffington Post Investigative Fund story about physician HIT buyer's remorse.

UCI Medical Center Fails Inspection, UCI Executives Get Bonuses

Back in the early days of Health Care Renewal, we had many occasions to write about problems with the leadership of the University of California - Irvine (UCI) medical school.  Starting in late 2005, we posted  about various management problems at the institution, involving its liver transplant service, cardiology division, and bone marrow transplant service, (see posts here and here) which lead the new chancellor of the campus to "acknowledge a failure of leadership and accountability" (see post here.) Slightly more recently, we noted the almost 20 year history of questionable financial relationships that involved one of UCI's "biggest stars" in clinical researach and several pharmaceutical companies (see post here).  Then, in 2007, we wrote about some strange contracting practices involving UCI and a local orthopedic practice (see post here).

So it was deja vu all over again when last week the Los Angeles Times reported about the latest batch of problems at UC Irvine Medical Center:

Federal investigators found scores of problems at UC Irvine Medical Center during a fall inspection that again put the troubled hospital's Medicare funding at risk, according to report released Thursday.

In an 85-page report on their surprise October inspection, regulators said they observed poor oversight and mistakes by UCI doctors, nurses and pharmacists, leading to inadequate care that in some cases harmed patients.

Among the findings:

* An 82-year-old man was mistakenly given a narcotic patch by a medical resident, without approval of doctors or pharmacists. The patch led to an overdose that required emergency intervention and may have contributed to his death a week later.

* A patient in the neuropsychiatric unit fell twice in three days and despite yelling 'Help me, doctor, help me,' suffered a head injury and had to be taken to intensive care.

* An on-call resident did not respond to repeated emergency pages from nurses in the neurological intensive care unit, where a patient with an irregular heartbeat languished for more than an hour.

* Pharmacists failed to monitor and store drugs correctly, allowing nurses to carry narcotics in their pockets and inject patients without proper oversight.

The report comes a year after investigators from the Centers for Medicare and Medicaid Services documented repeated examples of poor oversight at the hospital and threatened to cut Medicare funding.

In July, Medicare officials issued a finding of immediate jeopardy after investigators discovered that five UCI patients had received overdoses because nurses using pain medication pumps were not properly trained. UCI officials immediately began training nurses to use the pumps, the finding was lifted within 24 hours and the hospital submitted a plan of correction.

However, the 2010 continuation of the sad tale of UCI adds an interesting contrast.

UCI nurses said Thursday that many of the latest problems stem from understaffing and other cost-cutting, even as the facility turned a $54.2-million profit last year and the chief executive earned an $83,250 bonus.

'This is a problem of money. To provide extra training, extra staffing, is money,' said Beth Kean, California Nursing Assn. director for UC nurses, including 1,000 at UCI.

Terry A. Belmont, who took over as the hospital's chief executive last year, disputed that the facility was understaffed.

The new wrinkle in the UCI saga seems to be that now the leadership of UCI has been raking in bonuses while the mismanagement of the organization apparently continues.

Indeed, also last week several California newspapers reported on a series of bonuses granted to the top executives of the University of California system.  For example, per the Los Angeles Times,

The University of California regents Thursday approved the controversial payment of $3.1 million in performance bonuses to 38 senior executives at UC's five medical centers.

The regents emphasized that the payments were linked to improved patient health and stronger hospital finances and said they were important tools to attract and retain talent. They said the bonuses were part of a 16-year-old plan funded by hospital revenue, not state funds or student fees. An additional $33.7 million is distributed among 22,000 lower-ranking medical employees.

However, union activists denounced the executive bonuses as unconscionable as other parts of the university were coping with pay cuts and layoffs.

'This is appalling to do this when they are telling the lowest-paid workers to stay in poverty,' said Lakesha Harrison, president of the American Federation of State, County and Municipal Employees Local 3299, which represents about 20,000 UC workers, including hospital technicians and campus custodians.

Some of the union's members get bonuses of about $300 a year, Harrison said. In contrast, the payments to the 38 senior managers range from about $30,100 to nearly $219,000.

The incentives were awarded after the UC medical center system met such targets as reducing catheter-related infections and saving money through group purchases of supplies, officials said.

Among the payments approved Thursday by the regents in San Francisco were $218,728 to UCLA Medical Center Chief Executive David Feinberg, on top of his $739,695 base salary; $181,227 to UC San Francisco medical center Chief Executive Mark Laret, on top of $739,700 in pay; and $87,000, in addition to his $580,000 salary, for John Stobo, the UC system's senior vice president for health sciences.

Corroborating the assertion that the bonus plan is not new is a document that lists executive compensation at the University of California in 2008. (2009 data does not yet seem to be available on the web.) This document noted the following bonuses paid to University of California - Irvine medical leaders in 2008:
- Susan J Rayburn, Executive Director of Clinical Enterprise - Base Salary= $212,700, Bonus=$28,401
- Lisa M Reiser, Chief Patient Care Services Officer - $243,000, $26,507
- Eugene Spiritus, Chief Medical Officer - $310,000, $38,373
- Patricia D Thatcher, Executive Director - HR and Customer Service, Medical Center - $197,547, $17,542
- Cynthia A Winner, Chief Ambulatory Care Officer - $238,200, $24,371
- Maureen L Zehntner, Associate Vice Chancellor/ Chief Executive Officer, Medical Center - $555,000, $74,432

Note that Dr Spiritus, the Chief Medical Officer, did not mention that he was a 2008 bonus recipient when he defended bonuses given to UCI leaders in the LA Times article,

'Everybody's fallible. We just have to make sure we have the right processes in place' to catch errors, said Dr. Eugene Spiritus, UCI Medical Center's chief medical officer.

Spiritus also defended the compensation for hospital managers, saying they need to stay competitive in order to attract and keep talented managers, especially given the cost of living in California.

F Scott Fitzgerald wrote, "the very rich are different from you and me."  These days, it is executives and managers who are very different from you and me. 

Physicians are beginning to dread the notion of "pay for performance," which may mean tiny increases in fees paid to physicians who uncritically follow wooden-headed guidelines based on over-simplified notions of disease, poor measurement schemes, and manipulated and suppressed clinical data. 

However, for health care organization executives, "pay for performance" seems to mean lavish bonuses only tenuously related to any rational notion of performance.  In the example above, it seems that multiple UCI executives earned bonuses for their management of clinical affairs at the medical center in 2008, and at least the medical center CEO earned a bonus in 2009 for "improved patient health" while outside review of the medical center's performance in 2009 revealed "scores of problems" sufficient to threaten withdrawal of Medicare funding.  One wonders about the basis for all the millions in bonuses that have been paid to University of California executives over the years?

In fact, the executive "pay for performance" programs that started in the for-profit corporate world, and now are prevalent in not-for-profit health care organizations, seem to reflect the culture of executive entitlement now so prevalent in the US (and maybe most developed countries.)  First, executives claim credit for any improvements in their organizations, while the workers in the trenches who actually accomplished the improvements get chump change.  Second, when things go wrong, the workers face salary cuts and lay-offs, while the executives' total compensation never seems to go down. 

As we mentioned before, executive compensation in health care seems best described as Prof Mintzberg described compensation for finance CEOs, "All this compensation madness is not about markets or talents or incentives, but rather about insiders hijacking established institutions for their personal benefit." As it did in finance, compensation madness is likely to keep the health care bubble inflating until it bursts, with the expected adverse consequences. Meanwhile, I say again, if health care reformers really care about improving access and controlling costs, they will have to have the courage to confront the powerful and self-interested leaders who benefit so well from their previously mission-driven organizations.

The Body Fat Setpoint, Part III: Dietary Causes of Obesity

What Caused the Setpoint to Change?

We have two criteria to narrow our search for the cause of modern fat gain:

1. It has to be new to the human environment
   
2. It has to cause leptin resistance or otherwise disturb the setpoint
   

Although I believe that exercise is part of a healthy lifestyle, it probably can't explain the increase in fat mass in modern nations. I've written about that here and here. There are various other possible explanations, such as industrial pollutants, a lack of sleep and psychological stress, which may play a role. But I feel that diet is likely to be the primary cause. When you're drinking 20 oz Cokes, bisphenol-A contamination is the least of your worries.

In the last post, I described two mechanisms that may contribute to elevating the body fat set point by causing leptin resistance: inflammation in the hypothalamus, and impaired leptin transport into the brain due to elevated triglycerides. After more reading and discussing it with my mentor, I've decided that the triglyceride hypothesis is on shaky ground*. Nevertheless, it is consistent with certain observations:

• Fibrate drugs that lower triglycerides can lower fat mass in rodents and humans
  
• Low-carbohydrate diets are effective for fat loss and lower triglycerides
• Fructose can cause leptin resistance in rodents and it elevates triglycerides (1)
• Fish oil reduces triglycerides. Some but not all studies have shown that fish oil aids fat loss (2)
  

Inflammation in the hypothalamus, with accompanying resistance to leptin signaling, has been reported in a number of animal studies of diet-induced obesity. I feel it's likely to occur in humans as well, although the dietary causes are probably different for humans. The hypothalamus is the primary site where leptin acts to regulate fat mass (3). Importantly, preventing inflammation in the brain prevents leptin resistance and obesity in diet-induced obese mice (3.1). The hypothalamus is likely to be the most important site of action. Research is underway on this.

The Role of Digestive Health

What causes inflammation in the hypothalamus? One of the most interesting hypotheses is that increased intestinal permeability allows inflammatory substances to cross into the circulation from the gut, irritating a number of tissues including the hypothalamus.

Dr. Remy Burcelin and his group have spearheaded this research. They've shown that high-fat diets cause obesity in mice, and that they also increase the level of an inflammatory substance called lipopolysaccharide (LPS) in the blood. LPS is produced by gram-negative bacteria in the gut and is one of the main factors that activates the immune system during an infection. Antibiotics that kill gram-negative bacteria in the gut prevent the negative consequences of high-fat feeding in mice.

Burcelin's group showed that infusing LPS into mice on a low-fat chow diet causes them to become obese and insulin resistant just like high-fat fed mice (4). Furthermore, adding 10% of the soluble fiber oligofructose to the high-fat diet prevented the increase in intestinal permeability and also largely prevented the body fat gain and insulin resistance from high-fat feeding (5). Oligofructose is food for friendly gut bacteria and ends up being converted to butyrate and other short-chain fatty acids in the colon. This results in lower intestinal permeability to toxins such as LPS. This is particularly interesting because oligofructose supplements cause fat loss in humans (6).

A recent study showed that blood LPS levels are correlated with body fat, elevated cholesterol and triglycerides, and insulin resistance in humans (7). However, a separate study didn't come to the same conclusion (8). The discrepancy may be due to the fact that LPS isn't the only inflammatory substance to cross the gut lining-- other substances may also be involved. Anything in the blood that shouldn't be there is potentially inflammatory.

Overall, I think gut dysfunction probably plays a major role in obesity and other modern metabolic problems. Insufficient dietary fiber, micronutrient deficiencies, excessive gut irritating substances such as gluten, abnormal bacterial growth due to refined carbohydrates (particularly sugar), and omega-6:3 imbalance may all contribute to abnormal gut bacteria and increased gut permeability.

The Role of Fatty Acids and Micronutrients

Any time a disease involves inflammation, the first thing that comes to my mind is the balance between omega-6 and omega-3 fats. The modern Western diet is heavily weighted toward omega-6, which are the precursors to some very inflammatory substances (as well as a few that are anti-inflammatory). These substances are essential for health in the correct amounts, but they need to be balanced with omega-3 to prevent excessive and uncontrolled inflammatory responses. Animal models have repeatedly shown that omega-3 deficiency contributes to the fat gain and insulin resistance they develop when fed high-fat diets (9, 10, 11).

As a matter of fact, most of the papers claiming "saturated fat causes this or that in rodents" are actually studying omega-3 deficiency. The "saturated fats" that are typically used in high-fat rodent diets are refined fats from conventionally raised animals, which are very low in omega-3. If you add a bit of omega-3 to these diets, suddenly they don't cause the same metabolic problems, and are generally superior to refined seed oils, even in rodents (12, 13).

I believe that micronutrient deficiency also plays a role. Inadequate vitamin and mineral status can contribute to inflammation and weight gain. Obese people typically show deficiencies in several vitamins and minerals. The problem is that we don't know whether the deficiencies caused the obesity or vice versa. Refined carbohydrates and refined oils are the worst offenders because they're almost completely devoid of micronutrients.

Vitamin D in particular plays an important role in immune responses (including inflammation), and also appears to influence body fat mass. Vitamin D status is associated with body fat and insulin sensitivity in humans (14, 15, 16). More convincingly, genetic differences in the vitamin D receptor gene are also associated with body fat mass (17, 18), and vitamin D intake predicts future fat gain (19).

Exiting the Niche

I believe that we have strayed too far from our species' ecological niche, and our health is suffering. One manifestation of that is body fat gain. Many factors probably contribute, but I believe that diet is the most important. A diet heavy in nutrient-poor refined carbohydrates and industrial omega-6 oils, high in gut irritating substances such as gluten and sugar, and a lack of direct sunlight, have caused us to lose the robust digestion and good micronutrient status that characterized our distant ancestors. I believe that one consequence has been the dysregulation of the system that maintains the fat mass "setpoint". This has resulted in an increase in body fat in 20th century affluent nations, and other cultures eating our industrial food products.

In the next post, I'll discuss my thoughts on how to reset the body fat setpoint.


* The ratio of leptin in the serum to leptin in the brain is diminished in obesity, but given that serum leptin is very high in the obese, the absolute level of leptin in the brain is typically not lower than a lean person. Leptin is transported into the brain by a transport mechanism that saturates when serum leptin is not that much higher than the normal level for a lean person. Therefore, the fact that the ratio of serum to brain leptin is higher in the obese does not necessarily reflect a defect in transport, but rather the fact that the mechanism that transports leptin is already at full capacity.

The Body Fat Setpoint, Part III: Dietary Causes of Obesity

What Caused the Setpoint to Change?

We have two criteria to narrow our search for the cause of modern fat gain:

1. It has to be new to the human environment
   
2. It has to cause leptin resistance or otherwise disturb the setpoint
   

Although I believe that exercise is part of a healthy lifestyle, it probably can't explain the increase in fat mass in modern nations. I've written about that here and here. There are various other possible explanations, such as industrial pollutants, a lack of sleep and psychological stress, which may play a role. But I feel that diet is likely to be the primary cause. When you're drinking 20 oz Cokes, bisphenol-A contamination is the least of your worries.

In the last post, I described two mechanisms that may contribute to elevating the body fat set point by causing leptin resistance: inflammation in the hypothalamus, and impaired leptin transport into the brain due to elevated triglycerides. After more reading and discussing it with my mentor, I've decided that the triglyceride hypothesis is on shaky ground*. Nevertheless, it is consistent with certain observations:

• Fibrate drugs that lower triglycerides can lower fat mass in rodents and humans
  
• Low-carbohydrate diets are effective for fat loss and lower triglycerides
• Fructose can cause leptin resistance in rodents and it elevates triglycerides (1)
• Fish oil reduces triglycerides. Some but not all studies have shown that fish oil aids fat loss (2)
  

Inflammation in the hypothalamus, with accompanying resistance to leptin signaling, has been reported in a number of animal studies of diet-induced obesity. I feel it's likely to occur in humans as well, although the dietary causes are probably different for humans. The hypothalamus is the primary site where leptin acts to regulate fat mass (3). Importantly, preventing inflammation in the brain prevents leptin resistance and obesity in diet-induced obese mice (3.1). The hypothalamus is likely to be the most important site of action. Research is underway on this.

The Role of Digestive Health

What causes inflammation in the hypothalamus? One of the most interesting hypotheses is that increased intestinal permeability allows inflammatory substances to cross into the circulation from the gut, irritating a number of tissues including the hypothalamus.

Dr. Remy Burcelin and his group have spearheaded this research. They've shown that high-fat diets cause obesity in mice, and that they also increase the level of an inflammatory substance called lipopolysaccharide (LPS) in the blood. LPS is produced by gram-negative bacteria in the gut and is one of the main factors that activates the immune system during an infection. Antibiotics that kill gram-negative bacteria in the gut prevent the negative consequences of high-fat feeding in mice.

Burcelin's group showed that infusing LPS into mice on a low-fat chow diet causes them to become obese and insulin resistant just like high-fat fed mice (4). Furthermore, adding 10% of the soluble fiber oligofructose to the high-fat diet prevented the increase in intestinal permeability and also largely prevented the body fat gain and insulin resistance from high-fat feeding (5). Oligofructose is food for friendly gut bacteria and ends up being converted to butyrate and other short-chain fatty acids in the colon. This results in lower intestinal permeability to toxins such as LPS. This is particularly interesting because oligofructose supplements cause fat loss in humans (6).

A recent study showed that blood LPS levels are correlated with body fat, elevated cholesterol and triglycerides, and insulin resistance in humans (7). However, a separate study didn't come to the same conclusion (8). The discrepancy may be due to the fact that LPS isn't the only inflammatory substance to cross the gut lining-- other substances may also be involved. Anything in the blood that shouldn't be there is potentially inflammatory.

Overall, I think gut dysfunction probably plays a major role in obesity and other modern metabolic problems. Insufficient dietary fiber, micronutrient deficiencies, excessive gut irritating substances such as gluten, abnormal bacterial growth due to refined carbohydrates (particularly sugar), and omega-6:3 imbalance may all contribute to abnormal gut bacteria and increased gut permeability.

The Role of Fatty Acids and Micronutrients

Any time a disease involves inflammation, the first thing that comes to my mind is the balance between omega-6 and omega-3 fats. The modern Western diet is heavily weighted toward omega-6, which are the precursors to some very inflammatory substances (as well as a few that are anti-inflammatory). These substances are essential for health in the correct amounts, but they need to be balanced with omega-3 to prevent excessive and uncontrolled inflammatory responses. Animal models have repeatedly shown that omega-3 deficiency contributes to the fat gain and insulin resistance they develop when fed high-fat diets (9, 10, 11).

As a matter of fact, most of the papers claiming "saturated fat causes this or that in rodents" are actually studying omega-3 deficiency. The "saturated fats" that are typically used in high-fat rodent diets are refined fats from conventionally raised animals, which are very low in omega-3. If you add a bit of omega-3 to these diets, suddenly they don't cause the same metabolic problems, and are generally superior to refined seed oils, even in rodents (12, 13).

I believe that micronutrient deficiency also plays a role. Inadequate vitamin and mineral status can contribute to inflammation and weight gain. Obese people typically show deficiencies in several vitamins and minerals. The problem is that we don't know whether the deficiencies caused the obesity or vice versa. Refined carbohydrates and refined oils are the worst offenders because they're almost completely devoid of micronutrients.

Vitamin D in particular plays an important role in immune responses (including inflammation), and also appears to influence body fat mass. Vitamin D status is associated with body fat and insulin sensitivity in humans (14, 15, 16). More convincingly, genetic differences in the vitamin D receptor gene are also associated with body fat mass (17, 18), and vitamin D intake predicts future fat gain (19).

Exiting the Niche

I believe that we have strayed too far from our species' ecological niche, and our health is suffering. One manifestation of that is body fat gain. Many factors probably contribute, but I believe that diet is the most important. A diet heavy in nutrient-poor refined carbohydrates and industrial omega-6 oils, high in gut irritating substances such as gluten and sugar, and a lack of direct sunlight, have caused us to lose the robust digestion and good micronutrient status that characterized our distant ancestors. I believe that one consequence has been the dysregulation of the system that maintains the fat mass "setpoint". This has resulted in an increase in body fat in 20th century affluent nations, and other cultures eating our industrial food products.

In the next post, I'll discuss my thoughts on how to reset the body fat setpoint.


* The ratio of leptin in the serum to leptin in the brain is diminished in obesity, but given that serum leptin is very high in the obese, the absolute level of leptin in the brain is typically not lower than a lean person. Leptin is transported into the brain by a transport mechanism that saturates when serum leptin is not that much higher than the normal level for a lean person. Therefore, the fact that the ratio of serum to brain leptin is higher in the obese does not necessarily reflect a defect in transport, but rather the fact that the mechanism that transports leptin is already at full capacity.

The Price is What?

Many in the US believe that a free market in health care is a good idea.  Some actually assert that the US health care system amounts to a free market. 

More evidence against that assertion was provided this week by an article in our local paper, the Providence Journal, by Felice Freyer. For the first time ever, the Rhode Island state health insurance commissioner published a report comparing what insurers pay different hospitals for the same services:

If you had surgery at Kent Hospital, your insurer would pay Kent significantly more than if you had the exact same procedure at South County Hospital –– even if the same doctor did the work.

On average, Kent is getting paid nearly twice as much as South County for inpatient care, according to a new report from the health insurance commissioner that is causing a stir across the state’s health-care industry.

It is well-known that hospitals get paid different amounts for the same services. But the report, for the first time, reveals the winners and losers, and quantifies the disparities –– with numbers showing the differences to be greater than many people thought.

The factor determining which hospitals are paid the highest rates, according to the report, is whether the hospital is part of a group. Such hospital systems have the clout to negotiate higher prices than independent hospitals.

'We’ve never had this kind of data [before],' said Christopher F. Koller, state health insurance commissioner. 'The results and analysis show that higher payments to hospitals are associated with system affiliation, and the current contracting method does not appear to encourage the fair treatment of providers.' There is no evidence connecting higher pay to higher quality, he said.

What is striking is the reason why such a comparison has never appeared up to now:

Koller’s report shines a flashlight beam into the murky world of hospital finance. Hospitals negotiate privately with insurers to establish how much they will be paid for each service. These talks are largely unregulated, and always private, so that no hospital knows exactly what its neighbor is being paid. All are forbidden by contract to reveal their rates.

Koller collected data from Blue Cross & Blue Shield of Rhode Island and UnitedHealthcare of New England concerning payments to 11 acute-care hospitals in 2008. He is the first public official to obtain this confidential information, saying he was entitled to it because a 2004 law requires him to promote the affordability of health care and ensure the fair treatment of providers.

Thus, the prices of commonly used medical services provided by hospitals were largely secret.

On obvious requirement for the function of a free market is price transparency. When making a purchasing decision, one needs to know what prices different sellers charge.

In a recent commentary in the Wall Street Journal, Alan S Blinder, a Princeton economics professor, and former Vice Chairman of the Federal Reserve Board, described the basic requirements of a free market:

When economists first heard [movie character Gordon] Gekko's now-famous dictum, 'Greed is good,' they thought it a crude expression of Adam Smith's 'Invisible Hand' — which is one of history's great ideas. But in Smith's vision, greed is socially beneficial only when properly harnessed and channeled. The necessary conditions include, among other things: appropriate incentives (for risk taking, etc.), effective competition, safeguards against exploitation of what economists call 'asymmetric information' (as when a deceitful seller unloads junk on an unsuspecting buyer), regulators to enforce the rules and keep participants honest, and—when relevant—protection of taxpayers against pilferage or malfeasance by others. When these conditions fail to hold, greed is not good.

Clearly, one cannot have appropriate incentives when prices are secret. Secret prices are also a glaring example of "asymmetric information." (Hospitals know what different insurance companies pay them for specific services, but not what the companies pay other hospitals for those services. Insurance companies know what they pay to different hospitals for the same services, but not what other companies pay. Patients, physicians, policy-makers and the public heretofore had no idea what any hospital was paid by any insurance company.)

The question begged is why neither hospitals nor health insurance companies wanted to make the prices public. One wonders if it were fears of looking incompetent (by paying to much, or charging to little), or worse, of revealing collusion. One also wonders if it were fears of revealing how anti-competitive is the current way of doing business.  At the time of data collection, Rhode Island had only two health insurers.  As noted above, large hospital networks got the highest prices.  Price differences did not obviously relate to quality of care, or costs of teaching programs. 

Note that we previously discussed secret agreements between a dominant health care insurance company and the largest hospital system in our northern neighbor, Massachusetts, and how these agreements resulted in payments to that system far greater than those paid to any other hospital.  I suspect that secret deals resulting in wide pricing discrepancies are the rule, rather than the exception in the US, and that such deals overwhelmingly favor the largest organizations, but not the best care. 

As we have been saying repeatedly since we started Health Care Renewal, the leadership of the large organizations that now dominate health care lacks accountability and transparency, and often fails to exhibit integrity and honesty.  Deliberately concealing price information obviously is an example of failing to be accountable and transparent. 

Now that the events have conspired to slow the US health care reform juggernaut, maybe we can reconsider whether meaningful health care reform can be accomplished without improving accountability, integrity, transparency and honesty of health care oganizations and their leaders.

Operation Aurora And a Widespread Reluctance to Discuss IT Flaws: Is Universal Healthcare IT Really a Good Idea in 2010?

In an essay that ties together recent exposés of serious IT security flaws (starting with Operation Aurora) and a culture of secrecy that pervades the IT industry and industries who use IT, I ask the question:

Is universal healthcare IT really a good idea in 2010?

The complete essay is at my academic site at this link.

Operation Aurora was a cyber attack, conducted in mid-December 2009 and apparently originating in China, against Google and more than 20 other companies, including Adobe Systems, Juniper Networks, Rackspace, Yahoo, Symantec, Northrop Grumman and Dow Chemical.

The attack used "0-day" vulnerabilities (newly discovered and unknown to the software vendor, i.e., "day zero" of the vendor's knowledge of the defect) in Microsoft's Internet Explorer. One target was Google's email service, Gmail. It is not unrealistic to suspect that successful break-ins to that service could have gotten dissidents jailed or killed. Entire countries have warned users to switch to other browsers, at least until a vulnerability fix can be found. I find this stunning.

I also bring to bear recent reports of a culture of secrecy among IT vendors and users about these defects and vulnerabilities. This culture of secrecy seems prevalent in health IT, with perhaps even higher stakes for people (patients) when systems malfunction.

The essay is long-ish and at times technical.

The IT issues it addresses, though, are at the root of why I believe the current push in health IT is a bad idea and that we need to "slow down" to a more temperate pace.

Again, the full essay is here.

-- SS

1/24/2010 Addendum:

It appears Microsoft has known about the Internet Explorer bug since Sept. 2009.

The flaw was in the Microsoft Security Response Center's (MSRC) queue to be fixed in the the next batch of patches due in February but the targeted zero-day attacks against U.S. companies forced the company to release an emergency, out-of-band IE update.

Actually, this was not a "zero day attack", but a "120 day attack." One wonders if EHR vendors have similar queues.

-- SS