HTTP:: Immune System Trait Is 60 Million Years Old
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Primates and humans have been recently proven to have yet another thing in common, that is an immune system component that was apparently so effective at doing its job that it was retained in bodies for 60 million years, long before we separated from apes through evolution. This amazing ability is the production of anti-bactericidal, protein-controlling vitamin D, which cannot be found in species other than primates in the world, ScienceDaily reports. Vitamin D was found a long time ago to be in charge of regulating parts of the immune system, but no one suspected that its role was essential to our species' survival. It would appear that all primates, ranging from capuchin monkeys to baboons, that have this ability are entirely dependent on it, which may explain why it hasn't evolved into something else, or disappeared completely, over so many years of evolution. During this time, other traits were considerably modified, as evidenced by our internal and external differen!
ces from our evolutionary cousins. The cathelicidin antimicrobial peptide is the most important immune system component influenced by vitamin D, but the exact mechanisms through which this happens are not entirely known. In addition to fighting pathogens and infections, the peptide also plays an important part in regulating several diffe...
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http://news.softpedia.com/news/Immune-System-Trait-Is-60-Million-Years-Old-119570.shtml
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