Wednesday, August 6, 2014

01.28.14 | BioSearch | One comment

There is life after the age of 600 (day) | BioSearch
Bacteria flamant home interiors from Easter Island bring good news to the field study of aging - a substance produced which extended the lifespan of older mice. When will people use such biotechnological treatment? A new study recently published in the journal Nature recently received much attention as it deserves. This is one of the most dramatic flamant home interiors innovations reported to date in the field of anti - aging.
The research work is focused on kinase enzyme (a protein flamant home interiors responsible for regulating cell processes) called TOR (often the beginning with the letter m, marking mammalian - mammals). The acronym stands TOR, the traditions of biochemistry, which holds that "should read it some where" she "target of rapamycin", that indicates that rapamycin was discovered before the TOR.
Rapamycin is a natural product first isolated from bacteria in a soil sample from Easter Island (Rapa Nui). The late eighties and early nineties was a massive material research topic (along with FK-506, and other material from the family of macrolide depressing the immune response). Note that - FK-506 and rapamycin, though similar, yet very different in behavior - a difference that was very difficult to find. Both compounds have strong immunosuppressive - hope was, among other things, one of which he could become a kind of universal transplant drug.
Rapamycin is not just material hoped, but still useful, especially in kidney transplants. And since TOR is involved flamant home interiors in many important cellular processes, the possibility of using rapamycin repression and synthetic molecules being studied massiveness hopes of discovering other effects. Most interesting of all (so far) is the use of anticancer therapy. This issue highlights flamant home interiors the complexity of the domain, since one problem immunosuppressive therapy is a significant increase in risk of cancer. Separation of these two effects has demanded for years of time and effort; This link should give you an idea of the magnitude of the task.
But rapamycin has also shown life-extending properties in simple organisms, and a recent study extends this effect flamant home interiors to mice. The team of researchers at NIH (National Institutes of Health) problems, though - just adding to their food component of the mice was not sufficient to reach sufficient levels in the blood. There was also a need to improve the formula component to produce its capsule, you can go through the small intestine, to overcome this obstacle, a group of rats aside for the experiment was ... well, older than planned.
But researchers continued to experiment flamant home interiors anyway mice aged 600 days, which corresponds to 60 human years. Surprisingly, the compound still extends lifespan by 14% in the female mice and 9% in males. Ages in which the control group only 5% of the Hebrews were spared, about 20% of the mice treated material were still kicking. This is a very significant flamant home interiors result, especially considering flamant home interiors the late start. flamant home interiors Anyway, it seems that this intervention prolongs life most dramatic in the second half of life, seen in a mammal. (Caloric restriction, for example, has been basically useless if you started at the age of 600 days in mice, there were no weight loss).
Research is currently being conducted rapamycin mice in the life (starting at 270 days), and the initial results look quite similar study published (even stronger effect in females). Also, no causes of death seem to have altered much of the mice in both groups were examined by necropsy, and nothing significant was noted. This is rather surprising, because the levels of the compound in the blood are (at least from what I can see) quite high. Research indicates that mice were given rapamycin at a dose of 60 to 70 nano - grams per milliliter, and my testing, I found references to levels of 15 nano - grams per milliliter Effective suppression in mice and immunosuppressive doses are similar.
Will people start to rush and take this stuff? It would not surprise me, although I think it is a bad idea right now. There are many things we do not understand about the tradeoffs between aging, cancer and immune response, and I would not want to be on the side did not see it coming. Jumping straight people is a big leap right now, but remember - there are many other mTOR inhibitors are being developed these days (eg here). If we can narrow down which pathways are important for longevity (and believe me, there are people who think a lot about this topic right now, especially after the last study), we can get a number of very interesting opportunities.
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01.28.14 | BioSearch | One comment
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