{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T13:24:02Z","timestamp":1788269042911,"version":"build-2803163510"},"reference-count":58,"publisher":"American Society for Microbiology","issue":"9","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100010923","name":"Missouri State University","doi-asserted-by":"publisher","award":["MSU Faculty Research Grant"],"award-info":[{"award-number":["MSU Faculty Research Grant"]}],"id":[{"id":"10.13039\/100010923","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Microbiol Spectr"],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title\/>\n                    <jats:p>\n                      Liraglutide, a GLP-1 receptor agonist, is used to induce weight loss. However, limited information exists on liraglutide\u2019s effects on the gut bacterial community and their restoration after washout. We investigated liraglutide\u2019s effect on the gut bacterial community in diet-induced obese (DIO) mice and whether these changes persist after washout. Twenty-four male C57BL\/6J mice on high-fat (HFC) or low-fat (LFC) diets were monitored for 21 days. A subgroup of high-fat mice received daily liraglutide for 14 days (HFL), followed by a 7-day washout. Liraglutide induced significant weight loss by Day 4, which persisted during treatment and partially reversed post-treatment. For bacterial community analysis, 7.1 million 16S rRNA gene sequences were retrieved using Illumina paired-end sequencing. We observed distinct shifts in the gut bacterial community structure during liraglutide treatment, which mostly returned to baseline after the 7-day washout. Using Similarity Percentages analysis, 21 amplicon sequence variants (ASVs) were identified as major contributors. Nine ASVs, related to\n                      <jats:italic toggle=\"yes\">Lactobacillus gasseri<\/jats:italic>\n                      ,\n                      <jats:italic toggle=\"yes\">L. paragasseri<\/jats:italic>\n                      ,\n                      <jats:italic toggle=\"yes\">L. johnsonii<\/jats:italic>\n                      , and\n                      <jats:italic toggle=\"yes\">Leptogranulimonas caecicola<\/jats:italic>\n                      , significantly increased during treatment and declined post-washout. The remaining 12 ASVs, associated with protein- and carbohydrate-fermenting bacteria (\n                      <jats:italic toggle=\"yes\">Romboutsia<\/jats:italic>\n                      ,\n                      <jats:italic toggle=\"yes\">Faecalicatena<\/jats:italic>\n                      , and\n                      <jats:italic toggle=\"yes\">Oscillibacter<\/jats:italic>\n                      ), decreased during treatment. Comparison across all groups identified 29 ASVs, clustering into seven phylogenetic groups, highlighting liraglutide\u2019s enrichment of bile acid- and mucin-associated taxa and suppression of carbohydrate-fermentative genera. These findings demonstrate that liraglutide induces rapid, diet-dependent, yet reversible shifts in the gut microbiome, favoring lactic acid-producing bacteria while reducing fermentative taxa. Such microbial changes may contribute to liraglutide\u2019s metabolic effects and provide insight into host-microbiome interactions in obesity treatment.\n                    <\/jats:p>\n                    <jats:sec>\n                      <jats:title>IMPORTANCE<\/jats:title>\n                      <jats:p>Obesity and overweight states are intricately linked to the gut bacterial community; however, the effects of common obesity treatments such as GLP-1 receptor agonists on gut bacteria remain unclear. Here, we show that liraglutide, a GLP-1 analog, reshapes the gut bacterial community in diet-induced obese mice relative to untreated obese and lean controls. By including baseline samples when mice were at a normal weight, we distinguished bacterial changes due to the drug from those due to obesity progression, as well as how the community structure is affected during a washout period. Liraglutide treatment selectively increased beneficial gut bacteria (e.g., Lactobacillaceae) under high-fat conditions. These bacterial shifts during GLP-1 therapy may contribute to its metabolic benefits and broaden our understanding of host bacterial interactions in the context of diet and weight management.<\/jats:p>\n                    <\/jats:sec>\n                  <\/jats:sec>","DOI":"10.1128\/spectrum.00343-26","type":"journal-article","created":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T13:00:19Z","timestamp":1785762019000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Effects of liraglutide on gut bacterial community dynamics"],"prefix":"10.1128","volume":"14","author":[{"given":"Jami","family":"Bull","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01d2sez20","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Biology, Missouri State University","place":["Springfield, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul L.","family":"Durham","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01d2sez20","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Biology, Missouri State University","place":["Springfield, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6042-2868","authenticated-orcid":true,"given":"Babur S.","family":"Mirza","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01d2sez20","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Biology, Missouri State University","place":["Springfield, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_4_2_2","unstructured":"World Health Organization. 2023. 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Available from: https:\/\/www.accessdata.fda.gov\/drugsatfda_docs\/label\/2014\/206321orig1s000lbl.pdf. Retrieved 15 Jun 2025."},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41591-021-01399-2"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.1111\/joim.13137"},{"key":"e_1_3_4_14_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-023-32411-z"},{"key":"e_1_3_4_15_2","doi-asserted-by":"publisher","DOI":"10.3390\/foods11030268"},{"key":"e_1_3_4_16_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-020-68440-1"},{"key":"e_1_3_4_17_2","doi-asserted-by":"publisher","DOI":"10.1128\/mbio.02032-23"},{"key":"e_1_3_4_18_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12866-017-1027-1"},{"key":"e_1_3_4_19_2","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jproteome.8b00354"},{"key":"e_1_3_4_20_2","doi-asserted-by":"publisher","DOI":"10.3390\/ijms21103434"},{"key":"e_1_3_4_21_2","doi-asserted-by":"publisher","DOI":"10.3389\/fnut.2022.1048693"},{"key":"e_1_3_4_22_2","doi-asserted-by":"publisher","DOI":"10.1038\/nutd.2017.17"},{"key":"e_1_3_4_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbc.2022.102682"},{"key":"e_1_3_4_24_2","doi-asserted-by":"publisher","DOI":"10.1530\/JOE-16-0478"},{"key":"e_1_3_4_25_2","doi-asserted-by":"publisher","DOI":"10.1111\/dom.15113"},{"key":"e_1_3_4_26_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0062578"},{"key":"e_1_3_4_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bbalip.2023.159373"},{"key":"e_1_3_4_28_2","doi-asserted-by":"publisher","DOI":"10.3389\/fmicb.2019.00887"},{"key":"e_1_3_4_29_2","doi-asserted-by":"publisher","DOI":"10.1128\/spectrum.03393-23"},{"key":"e_1_3_4_30_2","doi-asserted-by":"publisher","DOI":"10.3390\/nu17081303"},{"key":"e_1_3_4_31_2","doi-asserted-by":"publisher","DOI":"10.1002\/oby.23481"},{"key":"e_1_3_4_32_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.diabres.2016.08.009"},{"key":"e_1_3_4_33_2","doi-asserted-by":"publisher","DOI":"10.3390\/ijms25147784"},{"key":"e_1_3_4_34_2","doi-asserted-by":"publisher","DOI":"10.3389\/fendo.2018.00233"},{"key":"e_1_3_4_35_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-019-52103-x"},{"key":"e_1_3_4_36_2","doi-asserted-by":"publisher","DOI":"10.1097\/MIB.0000000000000847"},{"key":"e_1_3_4_37_2","doi-asserted-by":"publisher","DOI":"10.3389\/fmicb.2019.03146"},{"key":"e_1_3_4_38_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.chom.2018.11.002"},{"key":"e_1_3_4_39_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.intimp.2024.113671"},{"key":"e_1_3_4_40_2","doi-asserted-by":"publisher","DOI":"10.1039\/D2FO00886F"},{"key":"e_1_3_4_41_2","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.71.10.6008-6013.2005"},{"key":"e_1_3_4_42_2","doi-asserted-by":"publisher","DOI":"10.15252\/embj.2021109890"},{"key":"e_1_3_4_43_2","doi-asserted-by":"publisher","DOI":"10.3389\/fcimb.2015.00026"},{"key":"e_1_3_4_44_2","doi-asserted-by":"publisher","DOI":"10.18632\/aging.204953"},{"key":"e_1_3_4_45_2","doi-asserted-by":"publisher","DOI":"10.3390\/ijms231810980"},{"key":"e_1_3_4_46_2","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.00657-18"},{"key":"e_1_3_4_47_2","doi-asserted-by":"publisher","DOI":"10.1039\/d5fo01499a"},{"key":"e_1_3_4_48_2","doi-asserted-by":"publisher","DOI":"10.1099\/ijs.0.64717-0"},{"key":"e_1_3_4_49_2","doi-asserted-by":"publisher","DOI":"10.3390\/metabo11080482"},{"key":"e_1_3_4_50_2","doi-asserted-by":"publisher","DOI":"10.1038\/s42003-022-04406-5"},{"key":"e_1_3_4_51_2","doi-asserted-by":"publisher","DOI":"10.3390\/nu16162660"},{"key":"e_1_3_4_52_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41564-019-0649-5"},{"key":"e_1_3_4_53_2","doi-asserted-by":"publisher","unstructured":"Liu T-H Wang J Zhang C-Y Zhao L Sheng Y-Y Tao G-S Xue Y-Z. 2023. 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