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Journal Article

Gut microbiota composition explains more variance in the host cardiometabolic risk than genetic ancestry

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de la Cuesta-Zuluaga,  J
Department Microbiome Science, Max Planck Institute for Developmental Biology, Max Planck Society;

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Citation

Guzmán-Castañeda, S., Ortega-Vega, E., de la Cuesta-Zuluaga, J., Velásquez-Mejía, E., Rojas, W., Bedoya, G., et al. (2020). Gut microbiota composition explains more variance in the host cardiometabolic risk than genetic ancestry. Gut Microbes, 11(2), 191-204. doi:10.1080/19490976.2019.1634416.


Cite as: https://hdl.handle.net/21.11116/0000-000A-6752-6
Abstract
Cardiometabolic affections greatly contribute to the global burden of disease. The susceptibility to obesity, cardiovascular disease, and type-2 diabetes, conditions that add to the cardiometabolic syndrome (CMS), was associated with the ancestral genetic composition and gut microbiota. Studies explicitly testing associations between genetic ancestry and gut microbes are growing. We here examined whether the host genetic ancestry was associated with gut microbiota composition, and distinguished the effects of genetic ancestry and non-genetic factors on human cardiometabolic health. We performed a cross-sectional study with 441 community-dwelling Colombian mestizos from five cities spanning the Andes, Pacific, and Caribbean coasts. We characterized the host genetic ancestry by genotyping 40 ancestry informative markers; characterized gut microbiota through 16S rRNA gene sequencing; assessed diet intake, physical activity, cigarette, and medicament consumption; and measured cardiometabolic outcomes that allowed calculating a CMS risk scale. On average, each individual of our cohort was 67 ± 6% European, 21 ± 5% Native American and 12 ± 5% African. Multivariable-adjusted generalized linear models showed that individuals with higher Native American and African ancestries had increased fasting insulin, body mass index and CMS risk, as assessed by the CMS risk scale. Furthermore, we identified 21 OTUs associated to the host genetic ancestry and 20 to cardiometabolic health. While we highlight novel associations between genetic ancestry and gut microbiota, we found that the effect of intestinal microbes was more likely to explain the variance in CMS risk scale than the contributions of European, Native American and African genetic backgrounds.