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      Lawsonella clevelandensis, a case series of vascular graft infections caused by a rare pathogen

      case-report

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          Abstract

          Lawsonella clevelandensis is a fastidious Gram-positive, partially acid-fast, anaerobic, catalase positive bacterium that has been reported to be a rare cause of abdominal, breast, spinal, and liver abscesses. Here, three L. clevelandensis vascular graft infections (VGIs) and cardiac infections are reported.

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          Most cited references11

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          New Insights into Human Nostril Microbiome from the Expanded Human Oral Microbiome Database (eHOMD): a Resource for the Microbiome of the Human Aerodigestive Tract

          The eHOMD (http://www.ehomd.org) is a valuable resource for researchers, from basic to clinical, who study the microbiomes and the individual microbes in body sites in the human aerodigestive tract, which includes the nasal passages, sinuses, throat, esophagus, and mouth, and the lower respiratory tract, in health and disease. The eHOMD is an actively curated, web-based, open-access resource. eHOMD provides the following: (i) species-level taxonomy based on grouping 16S rRNA gene sequences at 98.5% identity, (ii) a systematic naming scheme for unnamed and/or uncultivated microbial taxa, (iii) reference genomes to facilitate metagenomic, metatranscriptomic, and proteomic studies and (iv) convenient cross-links to other databases (e.g., PubMed and Entrez). By facilitating the assignment of species names to sequences, the eHOMD is a vital resource for enhancing the clinical relevance of 16S rRNA gene-based microbiome studies, as well as metagenomic studies.
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            Vascular Graft Infections, Mycotic Aneurysms, and Endovascular Infections: A Scientific Statement From the American Heart Association.

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              Lawsonella clevelandensis gen. nov., sp. nov., a new member of the suborder Corynebacterineae isolated from human abscesses.

              Gram-stain-positive, partially acid-fast, non-spore-forming, anaerobic, catalase-positive, pleomorphic bacteria were isolated from human abscesses. Strains X1036T, X1698 and NML 120705, were recovered from a spinal abscess, a peritoneal abscess and a breast abscess respectively. A phylogenetic analysis of the 16S rRNA gene sequences showed that the strains shared 100 % similarity, and the nearest phylogenetic neighbour was Dietzia timorensis DSM 45568T (95%). Chemotaxonomic characteristics of the strains were consistent with those described for members of the suborder Corynebacterineae. Mycolic acids were detected using HPLC and one-dimensional TLC; whole-cell hydrolysates yielded meso-diaminopimelic acid with arabinose and galactose as the predominant sugars; the muramic acid acyl type was acetylated; the major menaquinone was MK-9 (96.3%); polar lipids detected were phosphatidylglycerol, phosphatidylinositol and an unknown glycophospholipid. Cellular fatty acids were hexadecanoic acid (C16 : 0), octadecenoic acid (C18 : 1ω9c) and decanoic acid (C10 : 0). Tuberculostearic acid was not detected. Based on the results of this polyphasic study, we conclude that these strains represent a novel genus and species within the suborder Corynebacterineae for which we propose the name Lawsonella clevelandensis gen. nov., sp. nov., with the type strain X1036T (=DSM 45743T=CCUG 66657T).
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                Author and article information

                Contributors
                Journal
                IDCases
                IDCases
                IDCases
                Elsevier
                2214-2509
                06 March 2023
                2023
                06 March 2023
                : 31
                : e01735
                Affiliations
                [a ]Department of Medicine, Mayo Clinic, Rochester, MN, USA
                [b ]Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, MN, USA
                [c ]Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
                Author notes
                [* ]Correspondence to: 200 First Street SW, Rochester, MN 55905, USA. khodadadi.ryan@ 123456mayo.edu abusaleh.omar@ 123456mayo.edu
                Article
                S2214-2509(23)00059-8 e01735
                10.1016/j.idcr.2023.e01735
                9992747
                36911869
                260c1b94-0276-4b41-a505-7a0f3c20fdd2
                © 2023 The Authors

                This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

                History
                : 12 January 2023
                : 2 March 2023
                : 5 March 2023
                Categories
                Case Report

                lawsonella clevelandensis,vascular graft infection,rare pathogen

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