telomeres


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telomeres

The sections of DNA that forms the natural end of a CHROMOSOME. The points that resist union with fragments of other chromosomes. Telomeres consist of repeated groups of the base sequence TTAGGG, where T, A and G represent the bases thymine, adenine and guanine, respectively. Formation of telomeres involves the shaving-off of some junk DNA at the chromosome end. There is a limit to the number of times that this can occur because of the deficiency of telomerase reverse transcriptase, and this is believed to be the reason for the upper limit in the number of times cells can reproduce. Overexpression of this enzyme allows otherwise normal cells to proliferate indefinitely. Telomere length is a function of age but there is evidence that it may also be an X-linked familial trait. Telomeres and telomerase are fundamental in the biology of ageing, cancer, stem cells and the disease dyskeratosis congenita.
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Summary: FML incorporates latest in telomere science
As expected, an inverse correlation existed between age at evaluation and telomere length; that is, younger women had longer telomeres.
"My research suggests that meditation can be very effective in reducing the suffering caused by psychological disorders and is also associated with longer telomeres," Dr.
Participants who reported racial discrimination but did not harbor signs of internalized racism did not have shorter telomeres.
A research review published in The Journals of Gerontology reports that telomeres can react positively to healthy lifestyle choices, so you can influence their health.
For women, the researchers found a signification association between how well the women's diets matched these dietary patterns and how long their telomeres were.
There is an increasing number of human syndromes attributed to telomeres malfunction.
For the new study, which was published in November in the European Heart Journal, many of the same scientists involved in the 2009 study decided to directly test whether exercise would change telomeres. They also hoped to learn whether the type and intensity of the exercise mattered.
Now, new research from the University of California, San Francisco, suggests that estrogen actually stokes the activity of an enzyme that helps to lengthen telomeres and may extend lifespans.
The company suggested the ingredient can help decrease the time it takes to shorten telomere cellular age.
Men also had higher intakes of sugary beverages and processed meats, both of which have been associated with shorter telomeres in prior studies.
The shorter your telomeres the shorter your life, but this is the first study to examine links with having children.