Thursday, 17 September 2009

Princess Health and "Seeking Justice for My Son". Princessiccia

Princess Health and "Seeking Justice for My Son". Princessiccia

At Healthcare Renewal we often write of the dangers of financial conflict of interest towards medical research and practice.

Here is a plea from a father of an 18 year old patient whose death became a cause c�l�bre against conflict of interest, only to then be swallowed up in the sea of silence known as the "anechoic effect." The plea is in our local newspaper, but deserves much wider attention:


Philadelphia Inquirer
Seeking justice for my son

He died in a gene-therapy trial. Penn and the FDA should release the records.

By Paul Gelsinger

Ten years ago today, my 18-year-old son, Jesse Gelsinger, died at the University of Pennsylvania in a gene-therapy trial. Who is responsible? Could his life have been saved? Are other patients at risk? These questions have yet to be fully answered.

Jesse lived with a rare metabolic disease. The point of the research trial was to see if an adenovirus (a cousin of the cold virus) could safely deliver corrective genes to Jesse's liver. Instead, the adenovirus killed Jesse.

Jesse became the poster child for what not to do in human-subjects research. Neither he nor I was warned that, as the Washington Post later reported, monkeys had died in a prior trial. And the Wall Street Journal reported that the researcher who developed the adenovirus, James Wilson, had a seven-figure financial interest in the trial's outcome, as did Penn.

I stood by Penn, Wilson, and the two principal investigators, Mark Batshaw and Steven Raper, until I understood the extent of Wilson's financial ties and the extent to which Jesse was misled about the risks and efficacy of the therapy. I eventually sued and ultimately settled. The amount of the settlement was sealed; the documents were not.

The federal government also sued, claiming that the researchers blew through clinical stop signs in conducting the trial, ignoring evidence that Jesse was not well enough to receive the adenovirus and failing to sufficiently alert the Food and Drug Administration about severe incidents involving prior patients. The researchers disagreed, saying they had the discretion to proceed despite Jesse's test results, and that they had alerted the FDA. The government also reached a settlement, which restricted the researchers' activities for a period of years.

Before the government settled, I urged federal officials to make the documents they collected public. They refused, saying this is simply not done.

I believe a better understanding of what happened to Jesse could improve practices. So I gave the documents collected for my lawsuit to a law professor, Robin Wilson, who teaches at Washington and Lee University in Lexington, Va. They appear in her new book, Health Law and Bioethics: Cases in Context.

While they are incomplete, the documents show a chilling pattern. They show that a lot of good people inside Penn raised alarms about Wilson's financial ties from the get-go, but that Penn approved the deal anyway. The documents also show misleading disclosures to Jesse about the risks posed to him. For example, although animals died in prior trials, we were told that "animals have not shown toxic effects ... at the dosage of virus that is needed to transport the gene in this study."

I thought the lawsuits brought by me and the government would change research practices and the rules governing research. When I settled, real reform seemed likely. The Senate had held hearings, the FDA was investigating whether mistakes were made in the trial, and influential medical bodies such as the Association of American Medical Colleges had begun to examine disclosure practices and financial ties.

But, sadly, we have not yet learned enough from Jesse's death. The shroud of secrecy that envelops legal settlements has helped hinder reform. No one has publicly accounted for the mistakes that led to Jesse's death.

We don't know whether the FDA was misled or dropped the ball. We don't know whether the researchers' claims of efficacy had any basis in fact or were just wishful thinking. We don't know why Penn approved the deal despite warnings. And we don't know whether the researchers' decision to administer the virus to Jesse was reasonable or reckless.

Ten years ago today, my son died in a science experiment. A complete record of what the researchers and FDA regulators knew is the best precaution against future tragedies like Jesse's death.

I am asking that the University of Pennsylvania and the FDA finally do the right thing and release their records.
If they did nothing wrong, let us see the proof. If they made a mistake, let us all learn from it and do better in the future. We owe it to Jesse to make his life and death mean something.

[Emphases mine - ed]


Other than stating that I strongly agree that these records should be released for others to learn from, I do not think additional commentary is necessary.

-- SS

Wednesday, 16 September 2009

Princess Health and Leadership by Those Who "Live Insulated from the Daily Travails of Ordinary" People; the University of Washington Example. Princessiccia

Princess Health and Leadership by Those Who "Live Insulated from the Daily Travails of Ordinary" People; the University of Washington Example. Princessiccia

On the University Diaries blog, Prof Margaret Soltan picked up on an article on the privileges now given to university leaders, using the example of the President of the University of Washington (which includes a medical school, academic medical center, etc). At a time when the university budget was being cut, President Mark Emmert refused to take a voluntary cut in his greater than $900,000 total annual compensation. This included a $12,000 car allowance and free use of the university mansion.

From the original article comes this key quote:

How could this happen? It happened for the same reason that Wall Street types, with acquiescence of their boards and public officials, saw no reason to make any personal sacrifice at a time when others are sacrificing greatly. The UW Board of Regents, as most others at public universities, is not made up of scholars and altruists. It consists mainly of governor-appointed businessmen, lawyers, and other high-income types who themselves live insulated from the daily travails of ordinary state taxpayers.

As Froma Harrop put it, the ethos among leaders of the finance sector now seems to be "heads, I win, tails, I'm bailed out." That ethos has now infiltrated the leadership of many kinds of organizations, perhaps because in many cases the Masters of the Universe from the finance sector now lead the boards of these organizations. The result may be leaders of academia more focused on enriching and empowering themselves than on their organizations' high-minded missions.

Monday, 11 August 2008

 Princess Health and Letter to the Editor.Princessiccia

Princess Health and Letter to the Editor.Princessiccia

I wrote a letter to the New York Times about their recent article "The Overflowing American Dinnerplate", which I reviewed here. The letter didn't get accepted, so I will publish it here:


In the article "The Overflowing American Dinner Plate", Bill Marsh cites USDA data showing a 59% increase in fat consumption from 1970 to 2006, coinciding with the doubling of the obesity rate in America. However, according to Centers for Disease Control NHANES nutrition survey data, total fat intake in the US has remained relatively constant since 1971, and has actually decreased as a percentage of calories. The apparent discrepancy disappears when we understand that the USDA data Marsh cites are not comprehensive. They do not include the fat contained in milk and meat, which have been steadily decreasing since 1970.

The change Marsh reported refers primarily to the increasing use of industrially processed vegetable oils such as soybean oil. These have gradually replaced animal fats in our diet over the last 30 years. Since overall fat intake has changed little since the 1970s, it cannot be blamed for rising obesity.

Sunday, 10 August 2008

 Princess Health and Rats on Junk Food.Princessiccia

Princess Health and Rats on Junk Food.Princessiccia

If diet composition causes hyperphagia, we should be able to see it in animals. I just came across a great study from the lab of Dr. Neil Stickland that explored this in rats. They took two groups of pregnant rats and fed them two different diets ad libitum, meaning the rats could eat as much as they wanted. Here's what the diets looked like:
The animals were fed two types of diet throughout the study. They were fed either RM3 rodent chow alone ad libitum (SDS Ltd, Betchworth, Surrey, UK) or with a junk food diet, also known as cafeteria diet, which consisted of eight different types of palatable foods, purchased from a British supermarket. The palatable food included biscuits, marshmallows, cheese, jam doughnuts, chocolate chip muffins, butter flapjacks, potato crisps and caramel/chocolate bars.
It's important to note that the junk food-fed rats had access to rat chow as well. Now here's where it gets interesting. Rats with access to junk food in addition to rat chow ate 56% more calories than the chow-only group! Here's what they had to say about it:
These results clearly show that pregnant rats, given ad libitum access to junk food, exhibited hyperphagia characterised by a marked preference for foods rich in fat, sucrose and salt at the expense of protein-rich foods, when compared with rats that only had access to rodent chow. Although the body mass of dams was comparable among all groups at the start of the experiment, the increased energy intake in the junk food group throughout gestation was accompanied by an increase in body mass at G20 [gestational day 20] with the junk food-fed dams being 13 % heavier than those fed chow alone.
Hmm, this is remarkably reminiscent of what's happening to a certain group of humans in North America right now: give them access to food made mostly of refined grains, sugar, and industrially processed vegetable oil. They will prefer it to healthier food, to the point of overeating. The junk food then drives hyperphagia by interfering with the body's feedback loops that normally keep feeding behaviors and body fat within the optimal range. These data support the hypothesis that metabolic damage is the cause of, not the result of, "super-sized" food portions and other similar cultural phenomena.

The rest of the paper is interesting as well. Pups born to mothers who ate junk food while pregnant and lactating had a greater tendency to eat junk than pups born to mothers who ate rat chow during the same period. This underscores the idea that poor nutrition can set a child up for a lifetime of problems.

Saturday, 9 August 2008

 Princess Health and Hyperphagia.Princessiccia

Princess Health and Hyperphagia.Princessiccia

One of the things I didn't mention in the last post is that Americans are eating more calories than ever before. According to Centers for Disease Control NHANES data, in 2000, men ate about 160 more calories per day, and women ate about 340 more than in 1971. That's a change of 7% and 22%, respectively. The extra calories come almost exclusively from refined grains, with the largest single contribution coming from white wheat flour (correction: the largest single contribution comes from corn sweeteners, followed by white wheat flour).

Some people will see those data and decide the increase in calories is the explanation for the expanding American waistline. I don't think that's incorrect, but I do think it misses the point. The relevant question is "why are we eating more calories now than we were in 1971?"

We weren't exactly starving in 1971. And average energy expenditure, if anything, has actually increased. So why are we eating more? I believe that our increased food intake, or hyperphagia, is the result of metabolic disturbances, rather than the cause of them.

Humans, like all animals, have a sophisticated system of hormones and brain regions whose function is to maintain a proper energy balance. Part of the system's job is to keep fat mass at an appropriate level. With a properly functioning system, feedback loops inhibit hunger once fat mass has reached a certain level, and also increase resting metabolic rate to burn excess calories. If the system is working properly, it's very difficult to gain weight. There have been a number of overfeeding studies in which subjects have consumed huge amounts of excess calories. Some people gain weight, many don't.

The fact that fat mass is hormonally regulated can be easily seen in other mammals. When was the last time you saw a fat squirrel in the springtime? When was the last time you saw a thin squirrel in the fall? These events are regulated by hormones. A squirrel in captivity will put on weight in the fall, even if its daily food intake is not changed.

A key hormone in this process is leptin. Leptin levels are proportional to fat mass, and serve to inhibit hunger and eating behaviors. Under normal conditions, the more fat tissue a person has, the more leptin they will produce, and the less they will eat until the fat mass has reached the body's preferred 'set-point'. The problem is that overweight Westerners are almost invariably leptin-resistant, meaning their body doesn't respond to the signal to stop eating!

Leptin resistance leads to hyperphagia, overweight and the metabolic syndrome (a common cluster of symptoms that implies profound metabolic disturbance). It typically precedes insulin resistance during the downward slide towards metabolic syndrome.

I suspect that wheat, sugar and perhaps other processed foods cause hyperphagia. I believe hyperphagia is at least partially secondary to a disturbed metabolism. There's something about industrial foods that reached a critical mass in the mid-70s. The shift in diet sent us into a tailspin of excessive eating and unprecedented weight gain.

Thursday, 7 August 2008

 Princess Health and Media Misinterpretations.Princessiccia

Princess Health and Media Misinterpretations.Princessiccia

The New York Times just published an article called "The Overflowing American Dinner Plate", in which they describe changes in the American diet since 1970, the period during which the obesity rate doubled. Bill Marsh used USDA estimates of food consumption from 1970 to 2006. Predictably, he focuses on fat consumption, and writes that it has increased by 59% in the same time period.

The problem is, we aren't eating any more fat than we were in 1970. The US Centers for Disease Control NHANES surveys show that total fat consumption has remained the same since 1971, and has decreased as a percentage of calories. I've been playing around with the USDA data for months now, and I can tell you that Marsh misinterpreted it in a bad way. Here are the raw data, for anyone who's interested. They're in easy-to-use Excel spreadsheets. I highly recommend poking around them if you're interested.

The reason Marsh was confused by the USDA data is that he confused "added fats" with "total fat".  While total fat intake has remained stable over this time period, added fats have increased by 59%. The increase is almost exclusively due to industrially processed seed oils (butter and lard have decreased). Total fat has remained the same because we now eat low-fat cuts of meat and low-fat dairy products to make up for it!

Another problem with the article is it only shows percent changes in consumption of different foods, rather than absolute amounts. This obscures some really meaningful information. For example, grain consumption is up a whopping 42%. That is the largest single food group change if you exclude the misinterpreted fat data. Corn is up 188%, rice 170%, wheat 21%. But in absolute amounts, the increase in wheat consumption is larger than corn or rice! That's because baseline wheat consumption dwarfed corn and rice. We don't get that information from the data presented in the article, due to the format.

So now that I've deconstructed the data, let's see what the three biggest changes in the American diet from 1970 to 2006 actually are:
  • We're eating more grains, especially white wheat flour

  • We're eating more added sweeteners, especially high-fructose corn syrup

  • Animal fats from milk and meat have been replaced by processed seed oils

Wheat + sugar + processed vegetable oil = fat and unhealthy. Sounds familiar, doesn't it?

Tuesday, 5 August 2008

 Princess Health and Life Expectancy and Growth of Paleolithic vs. Neolithic Humans.Princessiccia

Princess Health and Life Expectancy and Growth of Paleolithic vs. Neolithic Humans.Princessiccia

If paleolithic people were healthier than us due to their hunter-gatherer lifestyle, why did they have a shorter life expectancy than we do today? I was just reminded by Scott over at Modern Forager about some data on paleolithic (pre-agriculture) vs. neolithic (post-agriculture) life expectancy and growth characteristics. Here's a link to the table, which is derived from an article in the text Paleopathology at the Origins of Agriculture.

The reason the table is so interesting is it allows us to ask the right question. Instead of "why did paleolithic people have a shorter life expectancy than we do today?", we should ask "how did the life expectancy of paleolithic people compare to that of pre-industrial neolithic people?" That's what will allow us to tease the effects of lifestyle apart from the effects of modern medicine.

The data come from age estimates of skeletons from various archaeological sites representing a variety of time periods in the Mediterranean region. Paleolithic skeletons indicated a life expectancy of 35.4 years for men and 30.0 years for women, which includes a high rate of infant mortality. This is consistent with data from the Inuit that I posted a while back (life expectancy excluding infant mortality = 43.5 years). With modest fluctuations, the life expectancy of humans in this Mediterranean region remained similar from paleolithic times until the last century. I suspect the paleolithic people died most often from warfare, accidents and infectious disease, while the neolithic people died mostly from chronic disease, and infectious diseases that evolved along with the domestication of animals (zoonotic diseases). But I'm just speculating based on what I know about modern populations, so you can take that at face value.

The most interesting part of the table is actually not the life expectancy data. It also contains numbers for average stature and pelvic inlet depth. These are both markers of nutritional status during development. Pelvic inlet depth is a measure of the size of the pelvic canal through which a baby would pass during birth. It can be measured in men and women, but obviously its implications for birth only apply to women. As you can see in the table, stature and pelvic inlet depth declined quite a bit with the adoption of agriculture, and still have not reached paleolithic levels to this day.

The idea that a grain-based diet interferes with normal skeletal development isn't new. It's well-accepted in the field of archaeology that the adoption of grains coincided with a shortening of stature, thinner bones and crooked, cavity-ridden teeth. This fact is so well accepted that these sorts of skeletal changes are sometimes used as evidence that grains were adopted in a particular region historically. Weston Price saw similar changes in the populations he studied, as they transitioned from traditional diets to processed-food diets rich in white wheat flour, sweets and other processed foods.

The change in pelvic inlet depth is also very telling. Modern childbirth is so difficult, it makes you wonder why our bodies have evolved to make it so drawn-out and lethal. Without the aid of modern medicine, many of the women who now get C-sections and other birth interventions would not make it. My feeling is that we didn't evolve to make childbirth so lethal. It's more difficult in modern times, at least partially because we have a narrower pelvic inlet than our ancestors. Another thing Weston Price commented on was the relative ease of childbirth in many of the traditional societies he visited. Here's an exerpt from Nutrition and Physical Degeneration:
A similar impressive comment was made to me by Dr. Romig, the superintendent of the government hospital for Eskimos and Indians at Anchorage, Alaska. He stated that in his thirty-six years among the Eskimos, he had never been able to arrive in time to see a normal birth by a primitive Eskimo woman. But conditions have changed materially with the new generation of Eskimo girls, born after their parents began to use foods of modern civilization. Many of them are carried to his hospital after they had been in labor for several days. One Eskimo woman who had married twice, her last husband being a white man, reported to Dr. Romig and myself that she had given birth to twenty-six children and that several of them had been born during the night and that she had not bothered to waken her husband, but had introduced him to the new baby in the morning.
Now that's what I call fertility!