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Gender, Contraceptives and Individual Metabolic Predisposition Shape a Healthy Plasma Lipidome

Susanne Sales,J. Graessler,S. Ciucci,Rania Al-Atrib,T. Vihervaara,Kai Schuhmann,Dimple Kauhanen,Marko Sysi-Aho,S. Bornstein,M. Bickle,C. Cannistraci,K. Ekroos,A. Shevchenko

Published 2016 in Scientific Reports

ABSTRACT

Lipidomics of human blood plasma is an emerging biomarker discovery approach that compares lipid profiles under pathological and physiologically normal conditions, but how a healthy lipidome varies within the population is poorly understood. By quantifying 281 molecular species from 27 major lipid classes in the plasma of 71 healthy young Caucasians whose 35 clinical blood test and anthropometric indices matched the medical norm, we provided a comprehensive, expandable and clinically relevant resource of reference molar concentrations of individual lipids. We established that gender is a major lipidomic factor, whose impact is strongly enhanced by hormonal contraceptives and mediated by sex hormone-binding globulin. In lipidomics epidemiological studies should avoid mixed-gender cohorts and females taking hormonal contraceptives should be considered as a separate sub-cohort. Within a gender-restricted cohort lipidomics revealed a compositional signature that indicates the predisposition towards an early development of metabolic syndrome in ca. 25% of healthy male individuals suggesting a healthy plasma lipidome as resource for early biomarker discovery.

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