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Glucosamine: The Unsinkable Rubber Duck

Glucosamine is widely used for osteoarthritis pain. It is not as impossible as homeopathy, but its rationale is improbable. As I explained in a previous post,

Wallace Sampson, one of the other authors of this blog, has pointed out that the amount of glucosamine in the typical supplement dose is on the order of 1/1000th to 1/10,000th of the available glucosamine in the body, most of which is produced by the body itself. He says, “Glucosamine is not an essential nutrient like a vitamin or an essential amino acid, for which small amounts make a large difference. How much difference could that small additional amount make? If glucosamine or chondroitin worked, this would be a medical first and worthy of a Nobel. It probably cannot work.”

Nevertheless, glucosamine (alone or with chondroitin) is widely used, and there are some supporting studies. But they are trumped by a number of well-designed studies that show it works no better than placebo, as well as a study showing that patients who had allegedly responded to glucosamine couldn’t tell the difference when their pills were replaced with placebos. The GAIT trial was a large, well-designed, multicenter study published in The New England Journal of Medicine that showed no effect in knee osteoarthritis. A subsequent study of hip osteoarthritis also showed it worked no better than placebo.

A new study shows that glucosamine works no better than placebo for osteoarthritis pain in the low back. It was published in the JAMA: Effect of Glucosamine on Pain-Related Disability in Patients with Chronic Low Back Pain and Degenerative Lumbar Osteoarthritis: A Randomized Controlled Trial, by Wilkens et al. (more…)

Posted in: Clinical Trials, Herbs & Supplements

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The Texas Medical Board acts in the case of the Winkler County whistle blowing nurses

I can’t speak for anyone else who blogs here at Science-Based Medicine, but there’s one thing I like to emphasize to people who complain that we exist only to “bash ‘alternative’ medicine.” We don’t. We exist to champion medicine based on science against all manner of dubious practices. Part of that mandate involves understanding and accepting that science-based medicine is not perfect. It is not some sort of panacea. Rather, it has many shortcomings and all too often does not live up to its promise. Our argument is merely that, similar to Winston Churchill’s invocation of the famous saying that “democracy is the worst form of government except all the others that have been tried,” science-based medicine is the worst form of medicine except for all the others that have been tried before. (Look for someone to quote mine that sentence soon.) It’s not even close, either. SBM has produced far and away better results than any form of medicine that has come before it, which is why it’s always puzzled me that so much of “alternative” medicine seems to be a throwback to ancient, pre-scientific, sometimes religion-based medical systems that existed in the days before germ theory and a rudimentary understanding of human physiology. After all, it wasn’t until William Harvey in 1626 that doctors even knew for sure that there was a direct connection between the arterial and venous system, for example, and the sphygmomanometer wasn’t invented until 1881. Monitoring blood pressure didn’t become routine until the early 20th century, and monitoring the diastolic blood pressure wasn’t routine until the 1920s.

If there’s one area that SBM needs to do better in, it’s regulating our own. To me, the license to practice medicine is a privilege, not a right. That I should even have to emphasize such a statement is bothersome to me, but all too often medical licenses, once obtained, seem to be treated as a right that can’t easily be taken away. That’s not to say that actually getting to the point of being licensed and board-certified isn’t difficult. It is. There’s the need to maintain excellent grades in college, after which there’s medical school and residency, both of which can be quite brutal. But once a physician is fully trained, board certified, and licensed, it seems that medical boards bend over backwards not to take away his license, seemingly even if he’s providing treatments so far outside the standard of care that they might as well be magic.

The case that provoked this complaint from me is one I’ve written about before, namely that of the Winkler County, TX family practitioner, Dr. Rolando Arafiles, Jr.. At the time, Dr. Arafiles was selling dubious supplements, hawking colloidal silver, promoting Morgellon’s disease quackery, and had anti-vaccine propaganda on his website. It turns out that — finally! — Dr. Arafiles is facing the Texas Medical Board for his substandard practice, as documented in a story on Medscape entitled Physician in Whistle-Blower Case Charged by Texas Medical Board:

The Texas Medical Board (TMB) has charged a family physician at the center of a nationally publicized whistle-blower case involving 2 nurses with poor medical judgment, nontherapeutic prescribing, failure to maintain adequate records, overbilling, witness intimidation, and other violations.

The charges follow a report that the 2 nurses — Anne Mitchell, RN, and Vickilyn Galle, RN — made anonymously to the TMB last year about patient care rendered by Rolando Arafiles, Jr, MD, at Winkler County Memorial Hospital in Kermit, Texas, where the 2 nurses and Dr. Arafiles worked.

After the TMB contacted him about the report, Dr. Arafiles asked the sheriff of Winkler County to investigate its source. The sheriff, the physician’s acknowledged friend and patient, traced the report back to Mitchell and Gale, who were then charged in a state court with misuse of official information, which is a third-degree felony.

The American Nurses Association at the time called the criminal prosecution “outrageous,” arguing that nurses were obligated to stand up for patient safety.

A local news report on the case can be found here:

(more…)

Posted in: Health Fraud, Herbs & Supplements, Politics and Regulation

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Life Extension: Science or Pipe Dream?

Wouldn’t it be great if we could find a way to prolong our lives and to keep us healthy right up to the end? Ponce de León never found that Fountain of Youth, but science is still looking. What are the chances science will succeed? How’s it doing so far?

In his new book The Youth Pill: Scientists at the Brink of an Anti-Aging Revolution, David Stipp tries to answer those questions. From the title of the book, I expected hype about resveratrol or some other miracle pill; but instead it is a nuanced, levelheaded, entertaining, informative account of the history and current state of longevity research. It makes that research come alive by telling stories about the people involved, the failures and setbacks, and the agonizingly slow process of teasing out the truth with a series of experiments that often seem to contradict each other.

Anti-aging can mean several things. Extending the average lifespan is not the same as extending the maximum life span. Extending lifespan is not the same as preventing the degenerative changes characteristic of aging. (more…)

Posted in: Book & movie reviews, Herbs & Supplements, Pharmaceuticals

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Sunscreen in a Pill?

Starr_050107-2831_Phlebodium_aureum

I’ve previously described the consequences of acute and chronic sun exposure, and the rationale for topical sunscreen products. But wouldn’t it be easier to just take a pill that can boost our skin’s resistance to to the harmful effects of the sun? Is it possible to get all the benefits of sunscreen without the bother of creams, or even clothing? (more…)

Posted in: Herbs & Supplements

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Defending Isagenix: A Case Study in Flawed Thinking

The Internet is a wonderful new medium for communicating ideas and information in a rapid and interactive way. Many articles are followed by a “comments” section. Like so many things in this imperfect world, comments are a mixed blessing. They can enhance the article by correcting errors, adding further information, and contributing useful thoughts to a productive discussion. But all too often they consist of emotional outbursts, unwarranted personal attacks on the author, logical fallacies, and misinformation. They provide irrational and ignorant people with a soapbox for promoting prejudices and false information.

To illustrate, let’s look at the responses to something I wrote about a weight loss product called Isagenix that is sold through a multilevel marketing scheme. To quote the website,

The Isagenix cleanse is unique because it not only removes impurities at the cellular level, it builds the body up with incredible nutrition. Besides detoxing the body, Isagenix teaches people a wonderful lesson that they don’t need to eat as much as they are accustom to and eating healthy choices are really important and also a lot of the food we are eating is nutritionally bankrupt. [errors are in the original]

I didn’t set out to write an article about this. It started when I received an e-mail inquiry about Isagenix. I posted my answer on a discussion list and it was picked up and published on the healthfraudoz website.  Sandy Szwarc approved of it and kindly reposted it on her Junkfood Science blog

As I write, the comments on the healthfraudoz website have reached a total of 176. A few commenters approved of what I wrote, but the majority of commenters tried to defend Isagenix. Their arguments were irrational, incompetent, and sometimes amusing. (more…)

Posted in: Herbs & Supplements

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CAM in “Obamacare”

On March 30th, President Obama signed the final piece of healthcare reform legislation concluding an epic battle that ultimately lead to the passage of the Patient Protection and Affordable Care Act (PPACA). The bill enforces the largest change to US healthcare for decades and has provided an opportunity for Complementary and Alternative Medicine (CAM) advocates to be federally endorsed in our future healthcare system. This entry is an attempt to present excerpts from the PPACA itself that could lay the groundwork for incorporating CAM into the future healthcare system.

CAM proponents tout a few sections in the PPACA as a victory for their cause. One of these sections is 3502, entitled Establishing Community Health Teams To Support The Patient-Centered Medical Home, which endorses government grants “to establish community health teams,” which are defined as “community-based interdisciplinary, interprofessional teams.” It goes on to say that such a ‘team’ may include, “doctors of chiropractic, [and] licensed complementary and alternative medicine practitioners.”1

The requirements of such a health team are listed and one of them reads, “to provide support necessary for local primary care providers… [and] to provide coordination of the appropriate use of complementary and alternative (CAM) services to those who request such services.” What this entails, is that there will be an influx of federal spending into CAM services with the enactment of the new bill.

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Posted in: Herbs & Supplements, Politics and Regulation, Public Health

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No Education? No Training? No License? No Problem!

When Daniel David Palmer, the inventor of chiropractic, and his acolytes first took up the practice of chiropractic, around the turn of the last century, they were jailed for the unlicensed practice of medicine. If history had left them there, we might not be fighting a continuing battle with the pseudoscience that is “alternative” medicine today.

Unfortunately, the Kansas legislature intervened on the chiropractors’ behalf and passed the first chiropractic practice act in 1913. Over the years, state by state, the notions that subluxations interfere with nerve flow, causing ill health, and that only chiropractors could “correct” these subluxations, thereby restoring health, were incorporated into state law. As well, chiropractors were given a broad scope of practice and allowed to call themselves “doctor.” In 1974, Louisiana’s passage of a chiropractic practice act made chiropractic legal in all 50 states.

Acupuncturists and naturopaths copied this successful formula by convincing state legislatures to incorporate their pseudoscientific ideas directly into practice acts, thereby managing to become licensed health care providers. Legislative fiat triumphed over scientific facts time after time.

Laws allowing the practice of “alternative” medicine did not totally eliminate resistance to pseudoscientific practices from some quarters. Insurance companies, for example, refused to pay for treatments they considered experimental. Medicare did not cover chiropractic. Labs and x-ray facilities wouldn’t allow use of their services. But for each roadblock science tried to put in the way, state and federal legislators were there to remove it, paving the way toward “acceptance.”
(more…)

Posted in: Acupuncture, Energy Medicine, Herbs & Supplements, Homeopathy, Politics and Regulation

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A Report from the Bariatric Trenches

The American Society of Bariatric Physicians recently invited me to speak at their continuing medical education (CME) conference on obesity in Seattle. They got my name from Stephen Barrett of Quackwatch and asked if I could speak about questionable weight loss treatments like HGH, MIC (methionine, inositol and choline), and the HCG Diet. I seized the opportunity to discuss how to evaluate any medical claim, with examples from alternative medicine as well as from weight loss. My title was “Questionable Evidence for Questionable Treatments.” I talked about some of the things that can go wrong in clinical trials and why simply finding reports of positive randomized controlled trials (RCT) is not enough. I advocated rigorously science-based medicine and recommended the SBM website.

Several people came up afterwards to express their thanks and their agreement, but some of the questions from the audience were rather hostile. One man said he was a military doctor and he was using and teaching acupuncture (which I had criticized as a bad example of “tooth fairy science” in my talk). I asked for his opinion of battlefield acupuncture and he just said “No comment.” A couple of people thought science wasn’t enough and thought it was okay to prescribe questionable treatments when there was no proven effective treatment. I responded that I had no objection as long as the patient was told the facts and not given the false impression that the questionable treatment had been tested and shown to work.

I was glad for the chance to meet some of the ASBP members. I had never met a bariatric physician and was interested to learn about their practices and philosophies. I had never really thought about the fact that most obese patients had associated diseases like hypertension and diabetes, so their overall management could be very complex. I attended the whole obesity course: some of what I heard was educational, some of it was questionable, and some of it was frankly disturbing. (more…)

Posted in: Herbs & Supplements, Nutrition, Science and Medicine

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The dangers of opponents of science-based medicine

Michael Specter, author of Denialism: How Irrational Thinking Hinders Scientific Progress, Harms the Planet, and Threatens Our Lives, on the danger of science denial:

Given that more than half of the video is devoted to discussing vaccine denialism, supplements, and HIV/AIDS denialism, I think Spector’s talk is quite appropriate for this blog. Perhaps the best quote in Specter’s entire speech is this: “When you start down the road where belief in magic replaces evidence and science, you end up in a place where you don’t want to be.”

Unfortunately, for more and more of the population, it seems, when it comes to vaccines and “alternative” medicine that’s exactly where they’re going. They don’t want to be there, but unfortunately they won’t realize it until there there. They might not even realize it even then.

Unfortunately, society will.

Posted in: Herbs & Supplements, Science and Medicine, Vaccines

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A Sleep Remedy with Proprietary Secrets

A new product, Dream Water, is designed to help one relax, fall asleep and improve the quality of sleep using the all natural ingredients melatonin, GABA and 5-HTP (tryptophan). A single-dose 2.5 oz bottle retails for $2.99. They also offer a more dilute formulation in an 8 oz bottle. They suggest drinking half a bottle, keeping it at your bedside, and drinking more if you wake during the night. What dosage will you get from half a bottle? From a whole bottle? There’s no way to know. They offer a money back guarantee, free shipping, free samples, and lots of testimonials; but they refuse to disclose how much of what is in their product.

The DSHEA only permits structure and function claims like “supports prostate health,” but this product is clearly being promoted as a remedy for insomnia. The “Quack Miranda warning” is not displayed on the home page, but the “Dream Responsibly” page says “These statements have NOT been evaluated by the Food and Drug Administration. This product is NOT intended to diagnose, treat, prevent or cure any disease.”

Is it legal to sell this as a remedy for insomnia? I guess the legality depends on whether you define insomnia as a disease. Maybe they define it as an impairment in a function that needs supporting. Maybe they can get away with it. (more…)

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