Abstract
Leukocyte telomere length is inversely correlated with age, insulin resistance, serum leptin, and smoking. We explored whether menopausal status modifies the relations between leukocyte telomere length and insulin resistance. In addition, we examined the effect of menopause on the relation between leukocyte telomere length and C-reactive protein (CRP), an index of inflammation. This was an observational cohort study. The study setting was community based. A total of 1517 women aged 18-79 yr selected only for belonging to a twin pair and representative of the general population participated in the study. Leukocyte telomere restriction fragment length (TRFL) was measured. Insulin resistance (expressed in the homeostasis model assessment), leptin, and CRP were inversely correlated with leukocyte TRFL in premenopausal but not postmenopausal women. Insulin resistance, CRP, but not leptin independently accounted for variation in white blood cell TRFL in premenopausal women. Menopausal status impacts leukocyte telomere length and its relation with insulin resistance and inflammation in women.
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