Medical scientists at the University of Leicester have announced they have narrowed the search for the death clock gene in humans. Their study relates to a hunt for a gene that has important implications for aging and cancer as well as other age-related diseases.
The gene controls the length of human telomeres - repeat DNA sequences that cap a chromosome. Each time a human cell divides, the cap shortens. When it gets too short, cells die. Telomere length therefore acts as a death clock
People vary considerably in the length of telomeres they are born with.
The Leicester team, comprising members of the Department of Cardiovascular Sciences, Health Sciences and Genetics linked inter-individual differences in telomere length to a region on Chromosome 12 and identified what they describe as a strong candidate for the death clock gene. To help locate the gene, the Leicester researchers examined 383 adults comprising 258 sibling pairs.
Ather Mirza | alfa
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