Wednesday, April 3, 2024

Gut microbiome and metabolome profiling in Framingham heart study reveals cholesterol-metabolizing bacteria

How long before your competent? doctor puts together an EXACT DIET PROTOCOL that produces this beneficial gut microbiome? Or don't you have a functioning stroke doctor?

Gut microbiome and metabolome profiling in Framingham heart study reveals cholesterol-metabolizing bacteria

Published:April 02, 2024DOI:https://doi.org/10.1016/j.cell.2024.03.014

Highlights

  • Multiomic profiling in FHS reveals microbes and metabolites associated with CVD
  • Oscillibacter species are associated with decreased blood and stool cholesterol
  • Homology searches and molecular networking predict cholesterol enzymes and products
  • Oscillibacter species encode for conserved cholesterol-metabolizing enzymes

Summary

Accumulating evidence suggests that cardiovascular disease (CVD) is associated with an altered gut microbiome. Our understanding of the underlying mechanisms has been hindered by lack of matched multiomic data with diagnostic biomarkers. To comprehensively profile gut microbiome contributions to CVD, we generated stool metagenomics and metabolomics from 1,429 Framingham Heart Study participants. We identified blood lipids and cardiovascular health measurements associated with microbiome and metabolome composition. Integrated analysis revealed microbial pathways implicated in CVD, including flavonoid, γ-butyrobetaine, and cholesterol metabolism. Species from the Oscillibacter genus were associated with decreased fecal and plasma cholesterol levels. Using functional prediction and in vitro characterization of multiple representative human gut Oscillibacter isolates, we uncovered conserved cholesterol-metabolizing capabilities, including glycosylation and dehydrogenation. These findings suggest that cholesterol metabolism is a broad property of phylogenetically diverse Oscillibacter spp., with potential benefits for lipid homeostasis and cardiovascular health.

Graphical abstract

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