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Maternal stress during pregnancy may shorten lifespans of male lizard offspring


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IMAGE: Mother fence lizards that experience stress during pregnancy give birth to male offspring with shortened telomeres, which is associated with shortened life spans, according to new research.
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Credit: Tracy Langkilde, Penn State
UNIVERSITY PARK, Pa. Mother fence lizards that experience stress during pregnancy give birth to male offspring with shortened telomeres, or bits of non-coding DNA that cap the ends of chromosomes, according to a Penn State-led study. Shorter telomeres are associated with decreased lifespan in humans; therefore, the team s findings may have implications for human longevity.
Human men have shorter telomeres than women, which may partly explain why they have shorter lifespans of about seven years, said Tracy Langkilde, professor and Verne M. Willaman dean of the Eberly College of Science. Our study shows that stress experienced by mothers during gestation could further shorten the telomeres, and theref ....

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