PMID- 33983982 OWN - NLM STAT- MEDLINE DCOM- 20211028 LR - 20240124 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 16 IP - 5 DP - 2021 TI - Gut microbiome differences among Mexican Americans with and without type 2 diabetes mellitus. PG - e0251245 LID - 10.1371/journal.pone.0251245 [doi] LID - e0251245 AB - PURPOSE: Type 2 diabetes mellitus (T2DM) is an urgent public health problem and disproportionately affects Mexican Americans. The gut microbiome contributes to the pathophysiology of diabetes; however, no studies have examined this association in Mexican-Americans. The objective of this study was to compare gut microbiome composition between Mexican-Americans with and without T2DM. METHODS: This was a cross-sectional study of volunteers from San Antonio, TX. Subjects were 18 years or older and self-identified as Mexican American. Subjects were grouped by prior T2DM diagnosis. Eligible subjects attended a clinic visit to provide demographic and medical information. Thereafter, subjects recorded their dietary intake for three days and collected a stool sample on the fourth day. Stool 16s rRNA sequences were classified into operational taxonomic units (OTUs) via the mothur bayesian classifier and referenced to the Greengenes database. Shannon diversity and bacterial taxa relative abundance were compared between groups using the Wilcoxon rank sum test. Beta diversity was estimated using Bray-Curtis indices and compared between groups using PERMANOVA. RESULTS: Thirty-seven subjects were included, 14 (38%) with diabetes and 23 (62%) without diabetes. Groups were well-matched by body mass index and comorbid conditions. Shannon diversity was not significantly different between those with and without T2DM (3.26 vs. 3.31; p = 0.341). Beta diversity was not significantly associated with T2DM diagnosis (p = 0.201). The relative abundance of the most common bacterial phyla and families did not significantly differ between groups; however, 16 OTUs were significantly different between groups. CONCLUSIONS: Although alpha diversity was not significantly different between diabetic and non-diabetic Mexican Americans, the abundance of certain bacterial taxa were significantly different between groups. FAU - Kitten, Amanda K AU - Kitten AK AD - College of Pharmacy, The University of Texas at Austin, Austin, Texas, United States of America. AD - Pharmacotherapy Education and Research Center, University of Texas Health San Antonio, San Antonio, Texas, United States of America. FAU - Ryan, Laurajo AU - Ryan L AD - College of Pharmacy, The University of Texas at Austin, Austin, Texas, United States of America. AD - Pharmacotherapy Education and Research Center, University of Texas Health San Antonio, San Antonio, Texas, United States of America. FAU - Lee, Grace C AU - Lee GC AD - College of Pharmacy, The University of Texas at Austin, Austin, Texas, United States of America. AD - Pharmacotherapy Education and Research Center, University of Texas Health San Antonio, San Antonio, Texas, United States of America. FAU - Flores, Bertha E AU - Flores BE AD - School of Nursing, University of Texas Health San Antonio, San Antonio, Texas, United States of America. AD - Research to Advance Community Health Center, University of Texas Health San Antonio, San Antonio, Texas, United States of America. FAU - Reveles, Kelly R AU - Reveles KR AUID- ORCID: 0000-0001-8880-4879 AD - College of Pharmacy, The University of Texas at Austin, Austin, Texas, United States of America. AD - Pharmacotherapy Education and Research Center, University of Texas Health San Antonio, San Antonio, Texas, United States of America. AD - Research to Advance Community Health Center, University of Texas Health San Antonio, San Antonio, Texas, United States of America. LA - eng GR - P30 AG044271/AG/NIA NIH HHS/United States GR - UL1 TR002645/TR/NCATS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20210513 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (RNA, Ribosomal, 16S) SB - IM MH - Aged MH - Bacteria/genetics MH - Body Mass Index MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/metabolism/*microbiology MH - Eating MH - Feces/microbiology MH - Female MH - Gastrointestinal Microbiome/*genetics/physiology MH - Humans MH - Male MH - Mexican Americans/genetics MH - Middle Aged MH - Obesity/metabolism MH - RNA, Ribosomal, 16S/genetics MH - Texas PMC - PMC8118452 COIS- The authors have declared that no competing interests exist. EDAT- 2021/05/14 06:00 MHDA- 2021/10/29 06:00 PMCR- 2021/05/13 CRDT- 2021/05/13 17:24 PHST- 2021/01/25 00:00 [received] PHST- 2021/04/22 00:00 [accepted] PHST- 2021/05/13 17:24 [entrez] PHST- 2021/05/14 06:00 [pubmed] PHST- 2021/10/29 06:00 [medline] PHST- 2021/05/13 00:00 [pmc-release] AID - PONE-D-21-02685 [pii] AID - 10.1371/journal.pone.0251245 [doi] PST - epublish SO - PLoS One. 2021 May 13;16(5):e0251245. doi: 10.1371/journal.pone.0251245. eCollection 2021.