December 2nd, 2010 by Steve Novella, M.D. in Better Health Network, Health Policy, News, Opinion, Research
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The controversy over the human consumption of meat and dairy products from cloned cows continues. The UK Advisory Committee on Novel Foods and Processes, after reviewing the evidence, concluded that there was no substantial difference between meat and dairy from cloned cows compared to conventional cows. However, food products from cloned animals and their offspring remain banned in Europe.
Use of offspring of cloned cows, sheep and pigs are legal in the U.S., South America, and Asia. Australia is likely to follow suit in a year or two. The European Union (EU) has an effective ban at the moment, but the policy is under review. The UK is also negotiating with the EU regarding the use of clones.
There is not much of a theoretical reason to suspect that cloned animals would present a health risk. The primary concern is that something unanticipated might have occurred during the cloning process, causing the animal to be genetically or developmentally abnormal. However, if the cloning process works properly this should not happen. Further, if mutations do occur but the animal lives, it is likely that any changes do not represent a risk to humans who consume the meat or dairy from such clones. Read more »
*This blog post was originally published at Science-Based Medicine*
March 31st, 2010 by Happy Hospitalist in Better Health Network, Humor, News, Opinion, Primary Care Wednesdays
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“Am I having a heart attack?” From the files of the strange and unusual comes this self-test kit for myocardial infarction, otherwise known as a heart attack.
For the lay people out there, a heart attack occurs when bloodflow to the heart muscle stops, usually because of a blockage in the arteries around the heart (coronary arteries). (It’s what happened to Bill Clinton, although his heart muscle didn’t die, as it likely had collateral bloodflow from other arteries.) When bloodflow stops, the heart muscle dies. When the heart muscle cells die, they release compounds into the bloodstream which can then be detected on blood draws.
That is the basis for detecting a heart attack by drawing blood. There are some compounds that are specific to the heart, such as troponins that will only go up when the heart muscle is dying. Other enzymes, such as the CK go up with any muscle damage, including the heart.
That is the basis of this new self-test kit for heart attack testing from China Sky One Medical that tries to answer the “Am I having a heart attack?” question at home. It was approved in China in 2007 and recently received European Union clearance as well. Read more »
*This blog post was originally published at The Happy Hospitalist*