July 8th, 2010 by Steve Novella, M.D. in Better Health Network, Health Policy, News, Opinion, Quackery Exposed, Research
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Mark Hyman, a proponent of so-called “functional medicine” promoting himself over at the Huffington Post (an online news source that essentially allows dubious medical infomercials to pass as news) has posted a particularly egregious article on personalized medicine for dementia.
In the article Hyman distorts the modern practice of medicine, the current state of genetic science, and the very notion of “disease.” It is, as usual, a fine piece of medical propaganda sure to confuse many a reader. Hyman starts with some standard epidemiology of dementia –- it’s a common and growing disorder –- but then descends quickly into distortion and pseudoscience. Read more »
*This blog post was originally published at Science-Based Medicine*
June 21st, 2010 by GarySchwitzer in Better Health Network, Health Policy, News, Opinion, Quackery Exposed, Research
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Headlines every day in the New York Daily News are luring men in as part of a mass prostate cancer screening campaign that the American Cancer Society not only does not endorse, but its chief medical officer recommends against. Yet the paper brags that it’s beginning its second decade of this non-evidence-based campaign. Sample headlines:
• Doctors urge New York men to take advantage of free, city-wide PSA testing
• What you don’t know can kill you. Get a FREE prostate cancer test. It can save your life
• Bring dad in for FREE prostate cancer test across the city on Father’s Day
and
• Don’t skip the PSA test! My prostate cancer is treatable because simple test caught it early (written by a Daily News staffer). Read more »
*This blog post was originally published at Gary Schwitzer's HealthNewsReview Blog*
June 10th, 2010 by David H. Gorski, M.D., Ph.D. in Better Health Network, Health Policy, Opinion, Quackery Exposed, Research
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“I don’t want knowledge. I want certainty!” — David Bowie, from Law (Earthlings on Fire)
If there’s a trait among humans that seems universal, it appears to be an unquenchable thirst for certainty. It is likely to be a major force that drives people into the arms of religion, even radical religions that have clearly irrational views, such as the idea that flying planes into large buildings and killing thousands of people is a one-way ticket to heaven.
However, this craving for certainty isn’t expressed only by religiosity. As anyone who accepts science as the basis of medical therapy knows, there’s a lot of the same psychology going on in medicine as well. This should come as no surprise to those committed to science-based medicine because there is a profound conflict between our human desire for certainty and the uncertainty that is always inherent in so much of our medical knowledge. The reason is that the conclusions of science are always provisional, and those of science-based medicine arguably even more so than many other branches of science. Read more »
*This blog post was originally published at Science-Based Medicine*
June 8th, 2010 by Davis Liu, M.D. in Better Health Network, Health Policy, News, Opinion
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The Associated Press recent article “Overtreated: More medical care isn’t always better” reiterated a commonly known fact which is not understood by the public. This problem of doing more and yet getting little in return is a common issue which plagues the U.S. healthcare system and was illustrated quite convincingly by Shannon Brownlee’s book. Americans get more procedures, interventions, imaging, and tests but aren’t any healthier.
In fact they are often worse off. Too many unnecessary back surgeries. Too many antibiotics for viral infections, which aren’t at all impacted by these anti-bacterial therapies. Too many heart stents which typically are best used when someone is actually having a heart attack. Research shows that those that are treated with medications do just as well. As all patients with cardiac stents know, they also need to be on the same medications as well.
Eliminating unnecessary treatments is a good thing, particularly when it is based on science. Read more »
*This blog post was originally published at Saving Money and Surviving the Healthcare Crisis*
June 3rd, 2010 by Steve Novella, M.D. in Better Health Network, Opinion, Quackery Exposed, Research
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The development of drugs and other treatments for specific symptoms or conditions relies heavily on either serendipity (the chance finding of a beneficial effect) or on an understanding of underlying mechanisms.
In pain, for example, there are limited ways in which we can block pain signals –- such as activating opiate receptors, or inhibiting prostaglandins. There are only so many ways in which you can interact with these systems. The discovery of a novel mechanism of modulating pain is therefore most welcome, and has the potential of leading to entirely new treatments that may have a better side effect profile than existing treatments and also have an additive clinical effect.
A recent study by Nana Goldman et. al., published in Nature Neuroscience, adds to our understanding of pain relief by identifying the role of adenosine in reducing pain activity in the peripheral nervous system. The researchers, in a nice series of experiments, demonstrated that producing a local painful stimulus in mice causes the local release of ATP (adenosine triphosphate) that peaks at about 30 minutes. This correlates with a decreased pain response in the mice. Further, if drugs are given that prolong the effect of adenosine, the analgesic effect itself is prolonged. Read more »
*This blog post was originally published at Science-Based Medicine*
