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Obesity-related metabolite profiles of black women spanning the epidemiologic transition
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
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2016 (English)In: Metabolomics, ISSN 1573-3882, E-ISSN 1573-3890, Vol. 12, no 3, UNSP 45Article in journal (Refereed) Epub ahead of printText
Abstract [en]

In developed countries, specific metabolites have been associated with obesity and metabolic diseases, e.g. type 2 diabetes. It is unknown whether a similar profile persists across populations of African-origin, at increased risk for obesity and related diseases. In a cross-sectional study of normal-weight and obese black women (33.3 +/- 6.3 years) from the US (N = 69, 65 % obese), South Africa (SA, N = 97, 49 % obese) and Ghana (N = 82, 33 % obese) serum metabolite profiles were characterized via gas chromatography-time of flight/mass spectrometry. In US and SA women, BMI correlated with branched-chain and aromatic amino acids, as well as dopamine and aminoadipic acid. The relationship between BMI and lipid metabolites differed by site; BMI correlated positively with palmitoleic acid (16: 1) in the US; negatively with stearic acid (18: 0) in SA, and positively with arachidonic acid (20: 4) in Ghana. BMI was also positively associated with sugar-related metabolites in the US; i.e. uric acid, and mannitol, and with glucosamine, glucoronic acid and mannitol in SA. While we identified a common amino acid metabolite profile associated with obesity in black women from the US and SA, we also found site-specific obesity-related metabolites suggesting that the local environment is a key moderator of obesity.

Place, publisher, year, edition, pages
New York: Springer-Verlag New York, 2016. Vol. 12, no 3, UNSP 45
Keyword [en]
Obesity, African-origin, Amino acid profile
National Category
Family Medicine
URN: urn:nbn:se:umu:diva-119070DOI: 10.1007/s11306-016-0960-6ISI: 000372156000006OAI: diva2:921425
Available from: 2016-04-20 Created: 2016-04-11 Last updated: 2016-04-20Bibliographically approved

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