OKAMOTO Ryoichi 岡本了一

… Alternative Names

岡本了一オカモトリョウイチ

OKAMOTO Ryouichi 岡本了一

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Researcher Number	30224083
Other IDs
Affiliation (based on the past Project Information) *help	2011 – 2013: 北里大学, 医学部, 講師 2007 – 2008: 北里大学, 医学部, 講師 2002 – 2004: 北里大学, 医学部, 講師
Review Section/Research Field	Principal Investigator Laboratory medicine Except Principal Investigator Bacteriology (including Mycology)
Keywords	Principal Investigator β-ラクタマーゼ / クラス特異的抗体 / 迅速検出法 / カルバペネマーゼ / 特異抗体 / 多剤耐性菌 / 迅速診断法 Except Principal Investigator グラム陰性桿菌 / クラスC型βラクタマーゼ / β-ラクタマーゼの調節 … More / セフェム系薬耐性 / パーミアーゼ / アミダーゼ / 細胞壁断片 / ムロペプタイド / AmpCの誘導 / クラスC型酵素 / AmpR / AmpD / AmpG / ムロペプタイド(MuP) / 細胞壁のリサイクル / AmpC / E.cloacae / class C型β-lactamase / セフェムセフェム系薬耐性 / シグナル / 誘導型酵素 / E. cloacae / gram-negative bacteria / class C β-lactamase / regulation of β-lactamase / cephem resistance / permense / amidase / fragment of pepuchidoglyea / muropeptide Less

Studies on rapid detection methods for multi-drug resistant bacteria by using specific antibodiesPrincipal Investigator
- Principal Investigator
  
  OKAMOTO Ryoichi
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Laboratory medicine
- Research Institution
  Kitasato University
クラス特異的抗体を用いたβ-ラクタマーゼ迅速検出法の確立と臨床応用に関する研究Principal Investigator
- Principal Investigator
  
  岡本了一
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Laboratory medicine
- Research Institution
  Kitasato University
Role of shignal transduction of muropeptide by overexposing AmpC enzyme arises
- Principal Investigator
  
  INOUE Matsuhisa
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Bacteriology (including Mycology)
- Research Institution
  Kitasato University

All 2014 2011 2005 2004 2003 2002

All Journal Article Presentation

[Journal Article] Gene mutations responsible for overexpression of AmpC (β-lactamase in some Enterobacter cloacae clinical isolates. J2005
- Author(s)
  Kaneko K., R.Okamoto, R Nakano, M.Inoue 他
- Journal Title
  
  J Clin Microbiol 43(5)(In press)
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] AmpC β-lactamaseindu-ction is derived from ampC in Enterobacter cloacae.2005
- Author(s)
  Nakano, Yumiko, Nakano, R., Kaneko, K., Okamoto, R., Inoue, M.
- Journal Title
  
  Antimicrob Agents Chemother (in press)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Gene mutations responsible foroverproduction of AmpC β-lactamase in some Enterobacter cloacae clinical isolates.2005
- Author(s)
  Kaneko, K., Okamoto, R., Nakano, R., Kawakami, S., Inoue, M.
- Journal Title
  
  J.Clin Microbiol 43(6)
  
  Pages: 2955-2958
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Characterization of ermB gene transposition by Tn1545 and Tn917 in macrolide-resistant Streptococcus pneumoniae isolates.2005
- Author(s)
  Okitsu Naohiro, Kaieda, S., Yano, H., Nakano, R., Hosaka, Y., Okamoto, R., Kobayashi, T., Inoue, M.
- Journal Title
  
  J Clin Microbiol 43
  
  Pages: 168-173
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Isertion sequence ISEcpl increases expression of the plasmid-encoded AmpC β-lactamase CMY-4 originated from Citrobacter freundii2005
- Author(s)
  Nakano, R., Okamoto, R., Inoue, M.
- Journal Title
  
  Antimicrob Agents Chemother (in press)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Characterization of ermB gene transposition by Tn1545 and Tn917 in macrolide-resistant Streptococcus pneumoniae isolates., 20052005
- Author(s)
  Okits, N., H.Yano, R.Nakano, Y.Hosaka, R.Okamoto, T.Kobayashi, M.Inoue
- Journal Title
  
  J Clin Microbiol 43
  
  Pages: 168-173
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] CFE-1, anovelplasmid-encoded AmpC β-lactamase with an ampR gene originating from Citrobacter freundii.2004
- Author(s)
  Nakano, R., Okamoto, R., Nakano, Y., Kaneko, K., Okitsu, N., Hosaka, Y., Inoue, M.
- Journal Title
  
  Antimicrob Agents Cemother 8
  
  Pages: 1151-1158
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] A Klebsiella pneumoniae producing three kinds of class A β-Lactamases encoded by one single plasmid isolated froma a patient in Huashan Hospital, Shanghai, China2004
- Author(s)
  Zizhong, Xiong, Zhu, D., Wang, F., Zhang, Y., Okamoto, R., Inoue, M.
- Journal Title
  
  Int J Antimicrob 23
  
  Pages: 262-267
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] CFE-1, a novel plasmid-encoded AmpC β -lactamase with an ampR gene originating from Citrobacter freundii.2004
- Author(s)
  Nakano, R, R.Okamoto, Y.Nakano, M.Inoue 他
- Journal Title
  
  Antimicrob Agents Cheemother 48
  
  Pages: 1151-1158
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] CFE-1, anovelplasmid-encoded AmpC β-lactamase with an ampR gene originating from Citrobacter freundii. 20042004
- Author(s)
  Nakano, R., R.Okamoto, Y.Nakano, K.Kaneko, N.Okitsu, Y.Hosaka, M.Inoue
- Journal Title
  
  Antimicrob Agents Chemother. 48
  
  Pages: 1151-1158
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Induction of telithromycin resistance in Streptococcus pneumoniae.2003
- Author(s)
  Kaieda, S., Okitsu, N., Yano, U., Hosaka, H., Nakano, R., Okamoto, R., Takahashi, H., Inoue, M.
- Journal Title
  
  J Antimicrob Chemothe 50
  
  Pages: 736-737
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Induction of telithromycin resistance in Streptococcus pneumoniae.2003
- Author(s)
  Kaieda, S., N.Okitsu, H.Yano, H.Hosaka, R.Nakano, R.Okamoto, H.Takahashi, M.Inoue
- Journal Title
  
  J Antimicrob Chemother 50
  
  Pages: 736-737
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Antagonism between aminoglycosides and β-lactams in a methicillin-resistant Staphylococcus aureus isolates involves induction of an aminoglycoside-modifying enzyme2003
- Author(s)
  Ida, T., R.Okamoto, M.Nonoyama, K.Irinoda, M.Kurazono, M.Inoue
- Journal Title
  
  Antimicrob Agents Chemother 1516-15222,2002 46
  
  Pages: 1516-1522
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Helicobacter pylori survive ampicillin treatment in the Remnant Stomach.2002
- Author(s)
  Hosaka, Y., Okamoto, R., Irinoda, K., Kaieda, S., Koizumi, W., Saigenji, K., Inoue, M.
- Journal Title
  
  J.Antibiotics 5
  
  Pages: 495-498
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Antagonism between aminoglycosides and β-lactams in a methicillin-resistant Staphylococcus aureus isolates involves induction of an aminoglycoside-modifying enzyme.2002
- Author(s)
  Ida, T., Okamoto, R., Nonoyama, M., Irinoda, K., Kurazono, M., Inoue, M.
- Journal Title
  
  Antimicrob Agents Chemother 46
  
  Pages: 1516-1521
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Characterization of pKU701, a 2.5kb plasmid, in a Japanese Helico- bacter pyrori isolate.2002
- Author(s)
  Hosaka, Y., R.Okamoto, K.Irinoda, S.Kaieda, W.Koizumi, K.Saigenji, M.Inoue
- Journal Title
  
  J.Antibiotics 50
  
  Pages: 495-498
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Journal Article] Characterization of pKU701, a 2.5kb plasmid, in a Japanese Helico-bacter pyrori isolate.2002
- Author(s)
  Hosaka, Y., Okamoto, R., Irinoda, K., Kaieda, S., Koizumi, W., Saigenji, K., Inoue, M.
- Journal Title
  
  Plasmid 47
  
  Pages: 193-200
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14370096
[Presentation] 当院の腸内細菌におけるカルバペネマーゼ産生菌の分離状況2014
- Author(s)
  高山陽子、安達譲、二本柳伸、平田泰良、中村正樹、砂川慶介、岡本了一
- Organizer
  第62回日本化学療法学会総会
- Place of Presentation
  ヒルトン福岡シーホーク（福岡市）
- Year and Date
  2014-06-18
- Data Source
  KAKENHI-PROJECT-23659306
[Presentation] Improved performance of the modified hodge test using the Mueller-Hinton agar supplemented with cloxacillin for screening carbapenemase-producing clinical isolates in Enteorbacteriaceae.2011
- Author(s)
  Takayama, Y., Adachi, Y., Nihonnyanagi, S., Takagi, Y., Fujiki, K., Hirata, Y., Sunakawa, K., Okamoto, R.
- Organizer
  51st Interscience Conference on Antimicrobial Agents and Chemotherapy
- Place of Presentation
  Chicago(USA)
- Data Source
  KAKENHI-PROJECT-23659306
[Presentation] 当院におけるカルバペネム系薬剤に感受性を示すカルバペネマーゼ産生菌の動向2011
- Author(s)
  高山陽子, 安達譲, 二本柳伸, 中崎信彦, 平田泰良, 砂川慶介, 岡本了一
- Organizer
  第59回日本化学療法学会総会
- Place of Presentation
  札幌市
- Data Source
  KAKENHI-PROJECT-23659306
[Presentation] カルバペネマーゼ産生菌を検出するModified Hodge Test (MHT) の改良について2011
- Author(s)
  高山陽子, 平田泰良, 二本柳伸, 砂川慶介, 岡本了一
- Organizer
  第58回日本化学療法学会東日本支部総会
- Place of Presentation
  山形市
- Data Source
  KAKENHI-PROJECT-23659306

1. TAKAYAMA Yoko (80286278)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
2. INOUE Matsuhisa (10008336)

# of Collaborated Projects: 1 results

# of Collaborated Products: 17 results
3. KITASATO Hidero (90195256)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. 笹原武志 (10154014)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 中野竜一 (80433712)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

OKAMOTO Ryoichi 岡本 了一

岡本 了一 オカモト リョウイチ

OKAMOTO Ryouichi 岡本 了一

Research Projects

Research Products

Co-Researchers

Studies on rapid detection methods for multi-drug resistant bacteria by using specific antibodiesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

クラス特異的抗体を用いたβ-ラクタマーゼ迅速検出法の確立と臨床応用に関する研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Role of shignal transduction of muropeptide by overexposing AmpC enzyme arises

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Gene mutations responsible for overexpression of AmpC (β-lactamase in some Enterobacter cloacae clinical isolates. J2005

Author(s)

Journal Title

Data Source

[Journal Article] AmpC β-lactamaseindu-ction is derived from ampC in Enterobacter cloacae.2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Gene mutations responsible foroverproduction of AmpC β-lactamase in some Enterobacter cloacae clinical isolates.2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Characterization of ermB gene transposition by Tn1545 and Tn917 in macrolide-resistant Streptococcus pneumoniae isolates.2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Isertion sequence ISEcpl increases expression of the plasmid-encoded AmpC β-lactamase CMY-4 originated from Citrobacter freundii2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Characterization of ermB gene transposition by Tn1545 and Tn917 in macrolide-resistant Streptococcus pneumoniae isolates., 20052005

Author(s)

Journal Title

Description

Data Source

[Journal Article] CFE-1, anovelplasmid-encoded AmpC β-lactamase with an ampR gene originating from Citrobacter freundii.2004

Author(s)

Journal Title

Description

Data Source

[Journal Article] A Klebsiella pneumoniae producing three kinds of class A β-Lactamases encoded by one single plasmid isolated froma a patient in Huashan Hospital, Shanghai, China2004

Author(s)

Journal Title

Description

Data Source

[Journal Article] CFE-1, a novel plasmid-encoded AmpC β -lactamase with an ampR gene originating from Citrobacter freundii.2004

Author(s)

Journal Title

Data Source

[Journal Article] CFE-1, anovelplasmid-encoded AmpC β-lactamase with an ampR gene originating from Citrobacter freundii. 20042004

Author(s)

Journal Title

Description

Data Source

[Journal Article] Induction of telithromycin resistance in Streptococcus pneumoniae.2003

Author(s)

Journal Title

Description

Data Source

[Journal Article] Induction of telithromycin resistance in Streptococcus pneumoniae.2003

Author(s)

Journal Title

OKAMOTO Ryoichi 岡本了一

岡本了一オカモトリョウイチ

OKAMOTO Ryouichi 岡本了一