Authors: Charlotte Andersson Asya Lyass Martin G Larson Sander J Robins Ramachandran S Vasan
Publish Date: 2015/09/26
Volume: 58, Issue: 12, Pages: 2774-2780
Abstract
Statins and niacin nicotinic acid reduce circulating LDLcholesterol LDLC levels by different mechanisms Yet both increase the risk of diabetes mellitus Our objective was to relate blood LDLC concentrations and a genetic risk score GRS for LDLC to the risk of incident diabetes in individuals not treated with lipidmodifying therapyWe evaluated participants of the Framingham Heart Study who attended any of Offspring cohort examination cycles 3–8 and Third Generation cohort examination cycle 1 N =14120 personobservations 6011 unique individuals mean age 50 ± 11 years 56 women who were not treated with lipidmodifying or antihypertensive medications and who were free from cardiovascular disease at baseline Incident diabetes was assessed at the next examinationThe GRS was significantly associated with LDLC concentrations sex and ageadjusted estimated influence 024 p 00001 On followup mean 45 ± 15 years 312 individuals 22 developed newonset diabetes In multivariable models a higher LDLC concentration was associated with lower risk of diabetes OR per SD increment 081 95 CI 070 093 p = 0004 The GRS was associated with incident diabetes in a similar direction and of comparable magnitude OR per SD increment 085 95 CI 076 096 p = 0009Among individuals not treated with lipidmodifying therapy low LDLC concentrations were associated with increased diabetes risk These observations may contribute to our understanding of why lipidlowering treatment may cause diabetes in some individuals Additional studies are warranted to elucidate the molecular mechanisms underlying our observations
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