Telomere length declines with mean blood lead concentration in an urban passerine

Abstract excerpt

Lead (Pb) is a highly toxic and widespread environmental pollutant and can severely harm body tissues as well as DNA. Pb could potentially damage telomeres, whose length and shortening rate are linked with cellular senescence, physiological state, and mortality. Yet, studies investigating Pb and telomere dynamics in natural systems remain inconclusive. In this study, we used a free-living house sparrow (Passer...

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