Serum IF1 concentration is independently associated to HDL levels and to coronary heart disease: the GENES study. - Inserm - Institut national de la santé et de la recherche médicale Accéder directement au contenu
Article Dans Une Revue Journal of Lipid Research Année : 2013

Serum IF1 concentration is independently associated to HDL levels and to coronary heart disease: the GENES study.

Résumé

HDL is strongly inversely related to cardiovascular risk. Hepatic HDL uptake is controlled by ecto-F1-ATPase activity, and potentially inhibited by mitochondrial inhibitor factor 1 (IF1). We recently found that IF1 is present in serum and correlates with HDL-cholesterol (HDL-C). Here, we have evaluated the relationship between circulating IF1 and plasma lipoproteins, and we determined whether IF1 concentration is associated with the risk of coronary heart disease (CHD). Serum IF1 was measured in 648 coronary patients ages 45-74 and in 669 matched male controls, in the context of a cross-sectional study on CHD. Cardiovascular risk factors were documented for each participant, including life-style habits and biological and clinical markers. In controls, multivariate analysis demonstrated that IF1 was independently positively associated with HDL-C and apoA-I (r = 0.27 and 0.28, respectively, P < 0.001) and negatively with triglycerides (r = -0.23, P < 0.001). Mean IF1 concentration was lower in CHD patients than in controls (0.43 mg/l and 0.53 mg/l, respectively, P < 0.001). In multivariate analyses, following adjustments on cardiovascular risk factors or markers, IF1 was negatively related to CHD (P < 0.001). This relationship was maintained after adjustment for HDL-C or apoA-I. This study identifies IF1 as a new determinant of HDL-C that is inversely associated with CHD.

Dates et versions

inserm-01055265 , version 1 (12-08-2014)

Identifiants

Citer

Annelise Genoux, Jean-Bernard Ruidavets, Jean Ferrières, Guillaume Combes, Laeticia Lichtenstein, et al.. Serum IF1 concentration is independently associated to HDL levels and to coronary heart disease: the GENES study.. Journal of Lipid Research, 2013, 54 (9), pp.2550-8. ⟨10.1194/jlr.P036335⟩. ⟨inserm-01055265⟩
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