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Twin Research and Genetic Epidemiology Unit (A.V., T.D.S.) and Department of Chemical Pathology (R.S.), St. Thomas Hospital, London SE1 7EH, United Kingdom; and Department of Pediatrics (A.A., J.P.G., M.K.), Hypertension Research Center, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey 07103
Address all correspondence and requests for reprints to: Abraham Aviv, M.D., Room F-464 MSB, Department of Pediatrics, Hypertension Research Center, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, 185 South Orange Avenue, Newark, New Jersey 07103. E-mail: avivab{at}umdnj.edu.
Context: Leukocyte telomere length is inversely correlated with age, insulin resistance, serum leptin, and smoking.
Objective: 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.
Design: This was an observational cohort study.
Setting: The study setting was community based.
Participants: A total of 1517 women aged 1879 yr selected only for belonging to a twin pair and representative of the general population participated in the study.
Main Outcome Measure: Leukocyte telomere restriction fragment length (TRFL) was measured.
Results: 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.
Conclusions: Menopausal status impacts leukocyte telomere length and its relation with insulin resistance and inflammation in women.
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