{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,3,6]],"date-time":"2025-03-06T05:19:50Z","timestamp":1741238390601,"version":"3.38.0"},"reference-count":10,"publisher":"American Society of Tropical Medicine and Hygiene","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,3,5]]},"abstract":"<jats:title>ABSTRACT.<\/jats:title>\n<jats:p><jats:italic>Methylobacterium populi<\/jats:italic> is a fastidious, pink-pigmented, Gram-negative bacterium that has been isolated from poplar trees that are found throughout the Northern Hemisphere in both temperate and subtropical regions. Herein, we report a novel case of <jats:italic>M. populi<\/jats:italic> peritonitis associated with continuous ambulatory peritoneal dialysis (CAPD). A 45-year-old Japanese man with a history of hypertension and chronic kidney disease was diagnosed with CAPD-associated peritonitis. After starting broad-spectrum antibiotics, white blood cell (WBC) count in the CAPD effluent remained elevated. On day 7, the CAPD effluent grew Gram-negative vacuolated rods identified as <jats:italic>M. populi<\/jats:italic> using 16S ribosomal RNA gene sequences. After the treatment regimen was changed to intraperitoneal gentamicin, the WBC count in the CAPD effluent decreased, and the clinical features improved. Although infection with <jats:italic>M. populi<\/jats:italic> is rare, clinicians should advise patients on CAPD to avoid contact with poplar trees and provide training on adherence to CAPD exchange protocols, including hand hygiene.<\/jats:p>","DOI":"10.4269\/ajtmh.24-0572","type":"journal-article","created":{"date-parts":[[2024,12,10]],"date-time":"2024-12-10T18:35:14Z","timestamp":1733855714000},"page":"525-527","source":"Crossref","is-referenced-by-count":0,"title":["Methylobacterium populi Peritonitis Associated with Continuous Ambulatory Peritoneal Dialysis"],"prefix":"10.4269","volume":"112","author":[{"given":"Takehiro","family":"Hashimoto","sequence":"first","affiliation":[{"name":"Hospital Infection Control Center, Oita University Hospital, Oita, Japan;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroki","family":"Uchida","sequence":"additional","affiliation":[{"name":"Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Oita University Faculty of Medicine, Oita, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hirotaka","family":"Shibata","sequence":"additional","affiliation":[{"name":"Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Oita University Faculty of Medicine, Oita, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazufumi","family":"Hiramatsu","sequence":"additional","affiliation":[{"name":"Hospital Infection Control Center, Oita University Hospital, Oita, Japan;"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2795","reference":[{"key":"b1","series-title":"Genome Biol Evol","first-page":"evac123","article-title":"Comprehensive phylogenomics of methylobacterium reveals four evolutionary distinct groups and underappreciated phyllosphere diversity","volume":"14","author":"Leducq","year":"2022"},{"key":"b2","series-title":"J Clin Microbiol","first-page":"248","article-title":"Systemic infection of an immunocompromised patient with Methylobacterium zatmanii","volume":"37","author":"Hornei","year":"1999"},{"key":"b3","series-title":"Clin Infect Dis","first-page":"936","article-title":"Methylobacterium mesophilicum infection: Case report and literature review of an unusual opportunistic pathogen","volume":"30","author":"Sanders","year":"2000"},{"key":"b4","series-title":"Int J Syst Evol Microbiol","first-page":"1191","article-title":"Methylobacterium populi sp. nov., a novel aerobic, pink-pigmented, facultatively methylotrophic, methane-utilizing bacterium isolated from poplar trees (Populus deltoides \u00d7 Nigra DN34)","volume":"54","author":"Van Aken","year":"2004"},{"key":"b5","series-title":"Perit Dial Int","first-page":"110","article-title":"ISPD peritonitis guideline recommendations: 2022 update on prevention and treatment","volume":"42","author":"Li","year":"2022"},{"key":"b6","series-title":"Ren Fail","first-page":"993","article-title":"Peritoneal dialysis-related peritonitis caused by Gram-negative organisms: Ten-years experience in a single center","volume":"43","author":"Zeng","year":"2021"},{"key":"b7","series-title":"J Clin Microbiol","first-page":"3329","article-title":"Infections caused by unusual Methylobacterium species","volume":"49","author":"Lai","year":"2011"},{"key":"b8","series-title":"J Clin Microbiol","first-page":"1375","article-title":"Microbiological and clinical features of four cases of catheter-related infection by Methylobacterium radiotolerans","volume":"53","author":"Li","year":"2015"},{"key":"b9","series-title":"Antimicrob Agents Chemother","first-page":"1635","article-title":"Susceptibility testing of clinical isolates of Methylobacterium species","volume":"36","author":"Brown","year":"1992"},{"key":"b10","series-title":"Clin Microbiol Infect","first-page":"112","article-title":"Methylobacterium bacteremia in AIDS","volume":"4","author":"Truant","year":"1998"}],"container-title":["The American Journal of Tropical Medicine and Hygiene"],"original-title":[],"link":[{"URL":"https:\/\/www.ajtmh.org\/view\/journals\/tpmd\/112\/3\/article-p525.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.ajtmh.org\/downloadpdf\/journals\/tpmd\/112\/3\/article-p525.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/www.ajtmh.org\/downloadpdf\/journals\/tpmd\/112\/3\/article-p525.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T14:32:02Z","timestamp":1741185122000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ajtmh.org\/view\/journals\/tpmd\/112\/3\/article-p525.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,5]]},"references-count":10,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.4269\/ajtmh.24-0572","relation":{},"ISSN":["0002-9637","1476-1645"],"issn-type":[{"type":"print","value":"0002-9637"},{"type":"electronic","value":"1476-1645"}],"subject":[],"published":{"date-parts":[[2025,3,5]]}}}