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Amino Acid Supplement Makes Mice Live Longer

Submitted by on October 13, 2010 – 10:10 pm | 1,523 views

When mice are given drinking water laced with a special concoction of amino acids, they live longer than your average mouse, according to a new report in the October issue of Cell Metabolism, a Cell Press publication. The key ingredients in the supplemental mixture are so-called branched-chain amino acids, which account for 3 of the 20 amino acids (specifically leucine, isoleucine, and valine) that are the building blocks of proteins.

Treated animals also showed improvements in their exercise endurance and in motor coordination, the researchers report. (It is important to note that the animals in the current study were all male, Nisoli said. They plan to test the effects in females in future studies.)

The findings in older mice suggest that the supplementary mixture may be specifically beneficial for those who are elderly or ill. “It may not be useful in young people or body builders,” who are already in good condition, he said. But it might be a useful preventive strategy, he added, emphasizing that the mice they studied “were just aged, not sick.”

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