Wednesday, October 29, 2014

Synthetic oil triheptanoin improves Rett syndrome, longevity

We know that, Triheptanoin is a triglyceride that is composed of three seven-carbon fatty acids. These odd-carbon fatty acids are able to provide anaplerotic substrates for the TCA cycle. Triheptanoin is used clinically in humans to treat inherited metabolic diseases, such aspyruvate carboxylase deficiency and carnitine palmitoyltransferase II deficiency. It also appears to increase the efficacy of the ketogenic diet as a treatment for epilepsy.
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Now the research team used mice lacking the MeCP2 protein, which left them with severe Rett syndrome. In examining those mice, what stood out, according to Gabriele Ronnett, M.D., Ph.D., who led the research project at the Johns Hopkins University School of Medicine, was that they weighed the same as healthy mice but had large fat deposits accompanied by lower amounts of nonfat tissue, such as muscle. This suggested that calories were not being used to support normal tissue function but instead were being stored as fat.

This possibility led Ronnett and her research team to consider the role of mitochondria, which transform the building blocks of nutrients into a high-energy molecule, ATP. This molecule drives processes such as the building of muscle and the growth of nerve cells. Mitochondria use a series of biochemical reactions, collectively called the TCA cycle, to make this transformation possible. According to Susan Aja, Ph.D., a research associate and lead member of the research team, "If the components of the TCA cycle are low, nutrient building blocks are not processed well to create ATP. They are instead stored as fat."

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