Associations of fecal and blood microbiota-related metabolites with gut microbiota and type 2 diabetes in HIV infection
Year: 2025
Type: article
Study design: Observational Study
Abstract: OBJECTIVES: Assess the relationships of gut microbiota (GMB)-related metabolites in feces and blood with GMB and type 2 diabetes (T2D) in the context of HIV infection, the presence of which could disrupt host metabolism. DESIGN: We conducted a cross-sectional study among 111 women with HIV (WWH) and 56 women without HIV (WWOH) in the MACS/WIHS Combined Cohort Study. METHODS: We measured 62 targeted metabolites in both feces and plasma and examined their associations with GMB composition (243 species) and prevalent T2D. RESULTS: We observed 44 metabolites with detection rates ≥25% in both feces and plasma. Correlations between fecal and plasma metabolites were stronger in WWOH than in WWH (median r : 0.13 vs. 0.04). Fecal metabolites showed stronger correlations with GMB than plasma metabolites among all participants (median r [IQR] of measured vs. GMB-predicted metabolites: 0.24 [0.11, 0.33] vs. 0.08 [-0.03, 0.24]; P = 0.002), and the difference in this comparison was more pronounced in WWOH compared to WWH. We found a moderate consistency for the associations of fecal and plasma metabolites with T2D in WWH ( r for effect sizes of fecal and plasma metabolites on T2D = 0.36; P = 0.03), but not in WWOH ( r = 0.13; P = 0.45). Fecal and plasma kynurenate, a tryptophan catabolism metabolite, showed opposite associations with T2D, with a positive association for plasma (odds ratio (OR): 2.54, 95% confidence interval (CI): [1.28-5.76]; P = 0.01) and an inverse association for feces (0.59 [0.27-1.23]; P = 0.18) in WWH. CONCLUSIONS: Fecal metabolites are more strongly associated with GMB than plasma metabolites, especially among WWOH. HIV infection might also influence associations of fecal and plasma metabolites with T2D.
Source: AIDS
Institutions: Albert Einstein College of Medicine, Fred Hutch Cancer Center
Language: English
Topic: Gut microbiota and health
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: green
Awards: Translational Biomedical Science Training Grant, G1773452051, G183157880, G2127051194, G2839061624, G30074556, G314136941, G3418878615, G343705321, G483408255, G5431849782, Integrated analysis of CVD risk in HIV: gut microbiota, immune function and metabolites, HIV Infection, Metabolites and Subclinical Atherosclerosis, Metabolomics signatures underlying diet, lifestyle and gut microbiota for diabetes, G6479327070, University of Miami Developmental HIV/AIDS Mental Health Research Center (D-ARC), G693265041, G703764079, G750209410, Johns Hopkins Institute for Clinical and Translational Research, Multi-omic signatures of gut dysbiosis and cardiovascular comorbidities associated with HIV infection, Center for AIDS Research at Emory University, Data Analysis and Coordination Center for the MACS-WIHS Combined Cohort Study, The University of North Carolina Center for AIDS Research, UCLA Clinical and Translational Science Institute, Clinical Research Sites for the MACS/WIHS Combined Cohort Study (MACS/WIHS-CCS), UAB Center for AIDS Research (CFAR)
OpenAlex ID: W4410112185