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  1. 050 医学部, 大学院医学系研究科
  2. 0501 学術論文

Population-level transition of capsular polysaccharide types among sequence type 1 group B Streptococcus isolates with reduced penicillin susceptibility during a long-term hospital epidemic

http://hdl.handle.net/10091/00022539
http://hdl.handle.net/10091/00022539
88bf79ac-2df7-41b1-9769-19ed9797f8cd
名前 / ファイル ライセンス アクション
15K09566_02.pdf 15K09566_02.pdf (971.9 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-02-19
タイトル
タイトル Population-level transition of capsular polysaccharide types among sequence type 1 group B Streptococcus isolates with reduced penicillin susceptibility during a long-term hospital epidemic
言語
言語 eng
DOI
関連識別子 https://doi.org/10.1016/j.ijantimicag.2018.11.003
関連名称 10.1016/j.ijantimicag.2018.11.003
キーワード
主題 Reduced penicillin susceptibility, Group B Streptococcus, PRGBS, Serotype III, Serotype Ia, ST1
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Nagano, Noriyuki

× Nagano, Noriyuki

en Nagano, Noriyuki

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Koide, Shota

× Koide, Shota

en Koide, Shota

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Hayashi, Wataru

× Hayashi, Wataru

en Hayashi, Wataru

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Taniguchi, Yui

× Taniguchi, Yui

en Taniguchi, Yui

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Tanaka, Hayato

× Tanaka, Hayato

en Tanaka, Hayato

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Maeyama, Yoshihiko

× Maeyama, Yoshihiko

en Maeyama, Yoshihiko

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Suzuki, Masahiro

× Suzuki, Masahiro

en Suzuki, Masahiro

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Kimura, Kouji

× Kimura, Kouji

en Kimura, Kouji

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Arakawa, Yoshichika

× Arakawa, Yoshichika

en Arakawa, Yoshichika

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Nagano, Yukiko

× Nagano, Yukiko

en Nagano, Yukiko

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信州大学研究者総覧へのリンク
氏名 Nagano, Noriyuki
URL https://soar-rd.shinshu-u.ac.jp/profile/ja.HULFumkh.html
出版者
出版者 ELSEVIER
引用
内容記述 INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS.53(3):203-210(2019)
書誌情報 INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS

巻 53, 号 3, p. 203-210, 発行日 2019-03
抄録
内容記述 Over a 35-month period, group B Streptococcus isolates with reduced penicillin susceptibility (PRGBS) were detected from elderly patients at a regional hospital in Japan, accompanying population-level transition of PRGBS serotypes. The genetic relatedness of 77 non-duplicate PRGBS from 73 patients was analysed. Serotype III PRGBS predominated (16 serotype III/1 serotype Ib) in the first 9 months (period I), then 3 serotype Ib isolates appeared transiently for the next 3 months (period II), which was replaced predominantly by serotype Ia (20 serotype Ia/1 serotype III/1 non-typeable) for 9 months (period III). In the last 14 months (period IV), besides 25 serotype Ia isolates, 10 serotype III were also identified. Serotypes III and Ia isolates, belonging to ST1, shared G329V, G398A, V405A and G429D substitutions in penicillin-binding protein 2X. Of three strains subjected to whole-genome sequencing, serotype III strain SU12 (period I) had a higher degree of genomic similarity with serotype Ia strain SU97 (period III) than serotype Ib strain SU67 (period II) based on average nucleotide identity and single nucleotide polymorphisms. Analysis of the cps gene clusters and the upstream and downstream flanking sequences revealed that disruption of the hyaluronidase gene located upstream of cpsY by insertion of IS 1548 was found in strain SU12, whereas Delta ISSag8 was inserted between tRNA-Arg and rpsA genes located downstream of cpsL in strain SU97. Interestingly, most serotype III PRGBS re-emerging in period IV had this tRNA-Arg-Delta ISSag8-rpsA region. Capsular switching and nosocomial transmission may possibly contribute to population-level serotype replacement among ST1 PRGBS isolates. (c) 2018 Elsevier B.V. and International Society of Chemotherapy. All rights reserved.
資源タイプ(コンテンツの種類)
ISSN
収録物識別子タイプ PISSN
収録物識別子 0924-8579
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10778078
PubMed
識別子タイプ PMID
関連識別子 https://www.ncbi.nlm.nih.gov/pubmed/30414439
関連名称 30414439
権利
権利情報 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
WoS
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000459791500002
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