Methanogens as emerging pathogens in anaerobic abscesses

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
E SogodogoGhiles Grine

Abstract

Methanogens are strictly anaerobic archaea metabolising by-products of bacterial fermentation into methane by using three known metabolic pathways, i.e. the reduction of carbon dioxide, the fermentation of acetate or the dismutation of methanol or methylamines. Methanogens described in human microbiota include only Euryarchaeota, i.e. Methanobrevibacter smithii, Methanobrevibacter oralis, Methanobrevibacter arbophilus, Methanobrevibacter massiliensis, Methanomassiliicoccus luminyensis, Methanosphaera stadtmanae and Ca. Methanomethylophilus alvus and Ca. Methanomassiliicoccus intestinalis. Methanogens are emerging pathogens associated with brain and muscular abscesses. They have been implicated in dysbiosis of the oral microbiota, periodontitis and peri-implantitis. They have also been associated with dysbiosis of the digestive tract microbiota linked to metabolic disorders (anorexia, malnutrition and obesity) and with lesions of the digestive tract (colon cancer). Their detection in anaerobic pus specimens and oral and digestive tract specimens relies on microscopic examination by fluorescence in situ hybridisation, specific DNA extraction followed by polymerase chain reaction (PCR)-based amplification of the 16S rRNA and mcrA ...Continue Reading

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Citations

Aug 5, 2020·Journal of Zhejiang University. Science. B·Zhou-Heng YeXue-Jun Sun
Sep 16, 2019·Clinical Reviews in Allergy & Immunology·Youssouf SeremeJoana Vitte
Jul 16, 2020·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Michel DrancourtDidier Raoult
Jan 2, 2021·Microbial Pathogenesis·Hui-Ning FanJin-Shui Zhu
Dec 31, 2020·Microorganisms·Cheick Oumar GuindoGhiles Grine
Aug 26, 2021·Investigative Ophthalmology & Visual Science·Shalem Raj PadakandlaSisinthy Shivaji

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Methods Mentioned

BETA
biopsies
PCR
genotyping

Software Mentioned

mcr A

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