Showing posts with label senior health. Show all posts
Showing posts with label senior health. Show all posts

Wednesday, March 4, 2009

Preliminary study finds nutritional supplement plus testosterone may help keep seniors out of the hospital

A report published in the March, 2009 issue of the American Journal of Clinical Nutrition described a study conducted by researchers at the University of Adelaide in Australia which found that a combination of testosterone and an oral nutritional supplement may have kept previously undernourished older individuals out of the hospital.

Forty-nine men and women aged sixty-five and older whose nutritional assessment scores categorized them as undernourished were provided with advice on improved dietary intake and were assigned one of the following regimens: oral testosterone undecanoate (80 milligrams twice per day for men and 40 milligrams per day for women), an oral nutritional supplement consisting of 18 percent protein, both testosterone and the nutritional supplement, or no treatment for one year. Participants received regular home visits during which weight, dietary and medication compliance and other factors were assessed. Continue Reading

Friday, July 25, 2008

Why stress is aging?

Readers of Life Extension Update may recall the November 29, 2004 issue which described an association between emotional stress and shortened telomeres, a marker of cellular aging. Now, in research published in the May, 2008 issue of Brain, Behavior and Immunity, a team at the University of California, Los Angeles report that they may have discovered why.

Telomeres are caps at the ends of chromosomes (the genetic material of the cell) that contribute to their stability. Each time a cell divides, telomeres lose length. Telomeres also lose length in response to chronic stress. Shortened telomeres in white blood cells known as lymphocytes have been associated with HIV, osteoporosis, heart disease and aging. An enzyme within the cell known as telomerase helps prevent telomere shortening and maintains the cells' ability to continue dividing.
For the current investigation, UCLA David Geffen School of Medicine professor of pathology and laboratory medicine Rita Effros and colleagues studied lymphocytes from healthy male and female donors between the ages of 25 and 55. The cells were treated with varying concentrations of cortisol, the hormone released by the body when under stress, or with DMSO (as a control). Continue Reading


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