Characterization of microbial communities from gut microbiota of hypercholesterolemic and control subjects
Autor
Morales, Cristian Emanuel
Rojas, Gabriel Alfonso
Rebolledo, Camilo
Rojas-Herrera, Marcelo
Arias-Carrasco, Raul
Maracaja-Coutinho, Vinicius
Saavedra, Kathleen
Sánchez Leal, Pamela
Lanas, Fernando
Salazar, Luis A.
Saavedra, Nicolas
Fecha
2022Resumen
Introduction: In recent years, several studies have evidenced the importance
of the microbiome to host physiology as metabolism regulator, along with its
potential role in triggering various diseases. In this study, we analyzed the gut
microbiota in hypercholesterolemic (cases) and normocholesterolemic
(controls) individuals to identify characteristic microbial signature for each
condition.
Methods: Stool samples were obtained from 57 adult volunteers (27
hypercholesterolemic and 30 controls). The taxonomic profiling of microbial
communities was performed using high-throughput sequencing of 16S rRNA
V3-V4 amplicons, followed by data analysis using Quantitative Insights Into
Microbial Ecology 2 (QIIME2) and linear discriminant analysis (LDA) effect size
(LEfSe).
Results: Significant differences were observed in weight, height, body mass
index (BMI) and serum levels of triglycerides, total cholesterol and low-density
lipoprotein cholesterol (LDL-C) between the groups (p<0.05). LEfSe showed
differentially abundant prokaryotic taxa (a=0.05, LDA score > 2.0) in the group
of hypercholesterolemic individuals (Methanosphaera, Rothia, Chromatiales,
Clostridiales, Bacillaceae and Coriobacteriaceae) and controls
(Faecalibacterium, Victivallis and Selenomonas) at various taxonomic levels. In
addition, through the application of Phylogenetic Investigation of Communities
by Reconstruction of Unobserved States 2 (PICRUSt2), the predominance of
pathways related to biosynthesis in hypercholesterolemic patients was
established, compared to controls in which degradation pathways were
predominant. Finally, in the analysis of co-occurrence networks, it was
possible to identify associations between the microorganisms present in both
studied groups.
Conclusion: Our results point out to unique microbial signatures, which likely
play a role on the cholesterol metabolism in the studied population.
Fuente
Frontiers in Cellular and Infection Microbiology, 12, 943609Link de Acceso
Click aquí para ver el documentoIdentificador DOI
doi.org/10.3389/fcimb.2022.943609Colecciones
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