Those pesky race-related genes again

Race is just "socially constructed" of course

More scientific evidence of deep-lying racial differences: "A common genetic mutation may explain why Asian heart patients are less likely than others to get relief from chest pain when they take nitroglycerin, a new Chinese study finds. Fudan University researchers examined 111 coronary heart disease patients who were self-administering nitroglycerin under the tongue whenever they experienced an acute angina attacks. Eighty (72 percent) of the patients reported that they had pain relief within 10 minutes of taking the nitroglycerin, while the remainder of the patients experienced no pain relief. The researchers found that many of the patients who didn't respond to nitroglycerin had an inactive mutant form of the ALDH2 gene. This mutant version is called ALDH2*2. In order for nitroglycerin to be effective, a patient's body has to be able to convert the nitroglycerin into nitric oxide. This process requires ALDH2. It's estimated that 30 percent to 50 percent of the Asian population has the ALDH2*2 mutation. This information needs to be considered when doctors recommend nitroglycerin for Asian patients, the study authors said".

There are even big genetic racial differences in earwax! "It is not a subject scientists generally wax about. But a seven-page scientific paper published today is solely devoted to the genetics of earwax. Human earwax comes in two varieties -- wet and dry. According to the journal Nature Genetics, dry earwax is seen in up to 95 per cent of East Asians, but no more than 3 per cent of Europeans and Africans. The reason for the difference is a gene called ABCC11 which controls earwax-altering molecules. A 39-strong international team did the research. The role of earwax was unclear, said the scientists. "Insect trapping, self-cleaning and prevention of dryness of the external auditory canal are its plausible functions," they wrote. Armpit (axillary) odour was associated with wet-type earwax, raising the possibility that earwax might be involved in sexual attraction."

Comments? Email John Ray

No comments:

Post a Comment

All comments containing Chinese characters will not be published as I do not understand them