“Charles Yogi, 89, a track & field athlete, is part of the Hawaii Lifespan Study.” Source of caption and photo: online version of the WSJ story quoted and cited below.
(p. A18) Based on animal experiments, gerontologists believe that one key to a healthy, longer lifespan may be found in a few master genes that affect cellular responses to famine, drought and other survival stresses. The more active these genes are, the longer an organism seems to survive — at least in the laboratory. Moreover, researchers are convinced that some genes may protect us against the risks of heart disease, diabetes, cancer and dementia.
. . .
Recent insights into the genetics of aging among simple organisms are stoking their enthusiasm. In January, for example, gerontologist Valter Longo at the University of Southern California reported that by altering two genes he made yeast that lived 10 times longer than normal. “We can really reprogram the lifespan of these organisms,” he said. In March, scientists at the University of Washington identified 15 genes regulating lifespan in yeast and worms that resemble genes found in humans. At least three companies are working independently on potential therapies based on the discovery that life span in mammals may be regulated partly by genetically controlled enzymes called sirtuins.
For the full story, see:
ROBERT LEE HOTZ. “Secrets of the ‘Wellderly’; Scientists Hope to Crack the Genetic Code of Those Who Live the Longest.” The Wall Street Journal (Fri., SEPTEMBER 19, 2008): A18.
(Note: ellipsis added.)