Sex differences in telomere length, lifespan, and embryonic dyskerin levels

Abstract excerpt

Telomerase levels in most human cells are insufficient to prevent loss of telomeric DNA with each replication cycle. The resulting "Hayflick" limit may have allowed lifespan to increase by suppressing the development of tumors early in life be it at the expense of compromised cellular responses late in life. At any given age, the average telomere length in leukocytes shows considerably variation between...

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