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2020 Fiscal Year Research-status Report

International collaborative studies to establish tailormade therapy based on the virulence and antibiotics resistance of H. pylori

Research Project

Project/Area Number 18KK0266
Research InstitutionOita University

Principal Investigator

山岡 吉生  大分大学, 医学部, 教授 (00544248)

Co-Investigator(Kenkyū-buntansha) 松本 昂  大分大学, 医学部, 助教 (50609667)
矢原 耕史  国立感染症研究所, 薬剤耐性研究センター, 室長 (70542356)
Project Period (FY) 2018-10-09 – 2022-03-31
Keywordsヘリコバクター・ピロリ / 国際共同研究 / 薬剤耐性 / 病原性 / テーラーメイド
Outline of Annual Research Achievements

発展途上国では、ピロリ菌感染者すべてに除菌療法を行う経済力もなければ十分な内視鏡設備や内視鏡医も存在しない。ピロリ菌培養ができる施設も稀で、効果的な除菌療法も存在しない。そこで本事業では、アジアの発展途上国で胃癌多発国であるモンゴル、ブータン、ベトナムに焦点を当て、現地共同研究者と共同で、除菌を行うべき人および除菌法の選択に有用な未知の病原因子および薬剤耐性関連遺伝子の変異・多型の検索を、次世代シーケンサーを用いた菌側のゲノムワイド関連解析(GWAS)によって行う。最終的には、携帯型で安価な新規遺伝子解読技術(ナノポア:MinION)による、従来の内視鏡検査および細菌培養を必要としない迅速かつ非侵襲な病原因子および薬剤耐性関連遺伝子検出方法の開発に取り組む。2020年度は、新型コロナウイルス感染禍のため、海外渡航は全くできなかったが、すでに大分大学に保管しているピロリ菌検体を用いて、従来の次世代シーケンサーおよびナノポアによる解析を進めた。さらに、ブータンでは具体的な村(ダワカ村)を設定して、その村におけるピロリ菌感染率の調査、陽性者には内視鏡検査を行い、除菌治療も行うことができた。ブータンでの事業は、ブータンの共同研究者が現地での活動を一手に引き受けて行ってくれた。またモンゴル消化器病学会にオンラインで出席して発表を行った。今年度は、モンゴル人との共著論文を4論文、ブータンとの共著論文を4論文、ベトナムとの共著論文を5論文発表することもできた。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

今年度は、モンゴルからの留学生が大学院生として来日して、環境・予防医学講座で研究を続けており、さらに昨年卒業して博士学位をえたモンゴルからの留学生も1名おり、彼らと共同研究を続け、彼らは我々との研究の橋渡しを行っている。さらに、現在もモンゴル人大学院生2名、ベトナム人留学生1名が研究を続けている。さらに、ブータンの共同研究者は、2年前に、ブータン国首相に選出され、政府を巻き込んだ共同研究。体制も確立しつつある。想定していた3カ国のみならず、比較対象としても近隣国との共同研究も進んでおり、今後、より研究が進むと考えられる。すでに業績の項にあるように多くの実績を上げている。

Strategy for Future Research Activity

今年度は、最終年度ということで、今までのデータを整理して論文としてまとめていく。特に薬剤耐性や病原因子にかかわる遺伝子変異を測定できる系を確立し、特にGWASを用いた解析を進めていく。また、ブータンでは昨年度に引き続き、現地研究者による疫学研究の継続をおこなっていきたい。なお、ブータンでの事業は、GACD, SATREPS採択という大きな成果を得ることができたため、本事業の修了後も大きな飛躍が期待できる。さらに、モンゴルおよびベトナムにおいても留学生の大学院生の在籍しており、新型コロナ感染禍の中でも、現地とのやり取りを充実させて、さらなる発展を目指していきたい。

Causes of Carryover

分担研究者の矢原耕史使用分の未使用額である。今年度は新たな解析に対して費用が必要でなく、未使用額が発生したが、最終年度では、多くのデータ解析が論文作成のために必要であり、解析にかかわる物品費などに使用する予定である。

  • Research Products

    (46 results)

All 2021 2020 Other

All Int'l Joint Research (5 results) Journal Article (29 results) (of which Int'l Joint Research: 24 results,  Peer Reviewed: 27 results,  Open Access: 15 results) Presentation (9 results) (of which Int'l Joint Research: 9 results,  Invited: 9 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] ブータン王立医科大学(ブータン)

    • Country Name
      BHUTAN
    • Counterpart Institution
      ブータン王立医科大学
  • [Int'l Joint Research] 108病院/チョーライ病院/ハノイ医科大学(ベトナム)

    • Country Name
      VIET NAM
    • Counterpart Institution
      108病院/チョーライ病院/ハノイ医科大学
    • # of Other Institutions
      3
  • [Int'l Joint Research] モンゴル国立医科学大学/ウランバートル第3病院/モンゴル国立がん研究所(モンゴル)

    • Country Name
      MONGOLIA
    • Counterpart Institution
      モンゴル国立医科学大学/ウランバートル第3病院/モンゴル国立がん研究所
    • # of Other Institutions
      5
  • [Int'l Joint Research] ベイラー医科大学/ヒューストン大学ガルベストン校(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      ベイラー医科大学/ヒューストン大学ガルベストン校
  • [Int'l Joint Research] ワルダ大学(インド)

    • Country Name
      INDIA
    • Counterpart Institution
      ワルダ大学
  • [Journal Article] Inhibition of low-density lipoprotein uptake by Helicobacter pylori virulence factor CagA2021

    • Author(s)
      Ninomiya Ryo、Kubo Shuichi、Baba Takehiro、Kajiwara Tooru、Tokunaga Akinori、Nabeka Hiroaki、Doihara Takuya、Shimokawa Tetsuya、Matsuda Seiji、Murakami Kazunari、Aigaki Toshiro、Yamaoka Yoshio、Hamada Fumihiko
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 556 Pages: 192~198

    • DOI

      10.1016/j.bbrc.2021.03.170

    • Peer Reviewed
  • [Journal Article] The Roles of IL-17, IL-21, and IL-23 in the Helicobacter pylori Infection and Gastrointestinal Inflammation: A Review2021

    • Author(s)
      Dewayani Astri、Fauzia Kartika Afrida、Alfaray Ricky Indra、Waskito Langgeng Agung、Doohan Dalla、Rezkitha Yudith Annisa Ayu、Abdurachman Abdurachman、Kobayashi Takashi、I’tishom Reny、Yamaoka Yoshio、Miftahussurur Muhammad
    • Journal Title

      Toxins

      Volume: 13 Pages: 315-1~315-10

    • DOI

      10.3390/toxins13050315

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A bacterial small RNA regulates the adaptation of Helicobacter pylori to the host environment2021

    • Author(s)
      Kinoshita-Daitoku R、Kiga K、Miyakoshi M、Otsubo R、Ogura Y、Sanada T、Bo Z、Phuoc TV、Okano T、Iida T、Yokomori R、Kuroda E、Hirukawa S、Tanaka M、Sood A、Subsomwong P、Ashida H、Binh TT、Nguyen LT、Van KV、Ho DQD、Nakai K、Suzuki T、Yamaoka Yoshio、Hayashi T、Mimuro Hitomi
    • Journal Title

      Nature Communications

      Volume: 12 Pages: 2085-1~2085-12

    • DOI

      10.1038/s41467-021-22317-7

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CYP2C19 Polymorphisms in Indonesia: Comparison among Ethnicities and the Association with Clinical Outcomes2021

    • Author(s)
      Miftahussurur M、Doohan D、Syam AF、Nusi IA、Subsomwong P、Waskito LA、Maulahela H、Akil F、Uwan WB、Siregar G、Fauzia KA、Rezkitha YAA、Rahman A、Wibawa IDN、Saudale AMJ、Richardo M、Sugihartono T、Chomariyati A、Bramantoro T、Uchida T、Yamaoka Yoshio
    • Journal Title

      Biology

      Volume: 10 Pages: 300-1~300-12

    • DOI

      10.3390/biology10040300

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatial and molecular mapping of Pfkelch13 gene polymorphism in Africa in the era of emerging Plasmodium falciparum resistance to artemisinin: a systematic review2021

    • Author(s)
      Kayiba Nadine K、Yobi Doudou M、Tshibangu-Kabamba Evariste、Tuan Vo P、Yamaoka Yoshio、Devleesschauwer Brecht、Mvumbi Dieudonn? M、Okitolonda Wemakoy Emile、De Mol Patrick、Mvumbi Georges L、Hayette Marie-Pierre、Rosas-Aguirre Angel、Speybroeck Niko
    • Journal Title

      The Lancet Infectious Diseases

      Volume: 21 Pages: e82~e92

    • DOI

      10.1016/S1473-3099(20)30493-X

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Helicobacter pylori type 4 secretion systems as gastroduodenal disease markers2021

    • Author(s)
      Phuc Bui Hoang、Tuan Vo Phuoc、Dung Ho Dang Quy、Binh Tran Thanh、Tung Pham Huu、Tri Tran Dinh、Thuan Ngo Phuong Minh、Van Khien Vu、Trang Tran Thi Huyen、Akada Junko、Matsumoto Takeshi、Yamaoka Yoshio
    • Journal Title

      Scientific Reports

      Volume: 11 Pages: 4584-1~4584-12

    • DOI

      10.1038/s41598-021-83862-1

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serum Helicobacter pylori antibody reactivity in seven Asian countries using an automated latex aggregation turbidity assay2021

    • Author(s)
      Akada J,Tshibangu‐K,Tuan V,Kurogi S,Matsuo Y,Ansari S,Doohan D,Phuc B,Subsomwong P,Waskito L,Binh T,Nguyen L,Khien V,Dung H,Miftahussurur M,Syam A,Tshering L,Vilaichone R,Mahachai V,Ratanachu‐ek T,Shrestha P,Yee T,Htet K,Aftab H,Matsuhisa T,Uchida T,Okimoto T,Mizukami K,Kodama M,Murakami K,Takahashi N,Yamaoka Yoshio
    • Journal Title

      Journal of Gastroenterology and Hepatology

      Volume: - Pages: 1~10

    • DOI

      10.1111/jgh.15467

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Advantage of 16S rRNA amplicon sequencing in Helicobacter pylori diagnosis2021

    • Author(s)
      Gantuya Boldbaatar、El Serag Hashem B.、Saruuljavkhlan Batsaikhan、Azzaya Dashdorj、Matsumoto Takashi、Uchida Tomohisa、Oyuntsetseg Khasag、Oyunbileg Nyamdorj、Davaadorj Duger、Yamaoka Yoshio
    • Journal Title

      Helicobacter

      Volume: - Pages: e12790-1~10

    • DOI

      10.1111/hel.12790

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discovery of unique African Helicobacter pylori CagA-multimerization motif in the Dominican Republic2020

    • Author(s)
      Ono Takaaki、Cruz Modesto、Nagashima Hiroyuki、Subsomwong Phawinee、Akada Junko、Matsumoto Takashi、Uchida Tomohisa、Suzuki Rumiko、Hosking Celso、Abreu Jos? A Jim?nez、Yamaoka Yoshio
    • Journal Title

      World Journal of Gastroenterology

      Volume: 26 Pages: 7118~7130

    • DOI

      10.3748/wjg.v26.i45.7118

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Helicobacter pylori Virulence Factor Cytotoxin-Associated Gene A (CagA)-Mediated Gastric Pathogenicity2020

    • Author(s)
      Ansari Shamshul、Yamaoka Yoshio
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Pages: 7430~7430

    • DOI

      10.3390/ijms21197430

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Screening and eradication of Helicobacter pylori for gastric cancer prevention: the Taipei global consensus2020

    • Author(s)
      Liou JM、Malfertheiner P、Lee YC、Sheu BS、Sugano K、Cheng HC、Yeoh KG、Hsu PI、Goh KL、Mahachai V、Gotoda T、Chang WL、Chen MJ、Chiang TH、Chen CC、Wu CY、Leow AHR、Wu JY、Wu DC、Hong TC、Lu H、Yamaoka Yoshio、Megraud F、Chan FKL、Sung JJY、Lin JT、Graham DY、Wu MS、El-Omar EM
    • Journal Title

      Gut

      Volume: 69 Pages: 2093~2112

    • DOI

      10.1136/gutjnl-2020-322368

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Predictors for development of complete and incomplete intestinal metaplasia (IM) associated with H. pylori infection: A large-scale study from low prevalence area of gastric cancer (IM-HP trial)2020

    • Author(s)
      Aumpan Natsuda、Vilaichone Ratha-Korn、Nunanan Pongjarat、Chonprasertsuk Soonthorn、Siramolpiwat Sith、Bhanthumkomol Patommatat、Pornthisarn Bubpha、Uchida Tomohisa、Vilaichone Virunpat、Wongcha-Um Arti、Yamaoka Yoshio、Mahachai Varocha
    • Journal Title

      PLOS ONE

      Volume: 15 Pages: e0239434-1~10

    • DOI

      10.1371/journal.pone.0239434

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Potential Benefits of Vonoprazan as Helicobacter pylori Infection Therapy2020

    • Author(s)
      Miftahussurur Muhammad、Pratama Putra Boby、Yamaoka Yoshio
    • Journal Title

      Pharmaceuticals

      Volume: 13 Pages: 276~276

    • DOI

      10.3390/ph13100276

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Whole Genome Sequencing Reveals Virulence Potentials of Helicobacter pylori Strain KE21 Isolated from a Kenyan Patient with Gastric Signet Ring Cell Carcinoma2020

    • Author(s)
      Mwangi Catherine、Njoroge Stephen、Tshibangu-Kabamba Evariste、Moloo Zahir、Rajula Allan、Devani Smita、Matsumoto Takashi、Nyerere Kimang’a、Kariuki Samuel、Revathi Gunturu、Yamaoka Yoshio
    • Journal Title

      Toxins

      Volume: 12 Pages: 556~556

    • DOI

      10.3390/toxins12090556

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gut-Homing CD4+ T Cells Are Associated with the Activity of Gastritis in HIV-Infected Adults2020

    • Author(s)
      Sato Hidenori、Ota Yasunori、Kido Yasutoshi、Matsumoto Takashi、Matsubara Yasuo、Matano Tetsuro、Hirata Yoshihiro、Kawana-Tachikawa Ai、Yamaoka Yoshio、Yotsuyanagi Hiroshi、Adachi Eisuke
    • Journal Title

      AIDS Research and Human Retroviruses

      Volume: 36 Pages: 910~917

    • DOI

      10.1089/AID.2020.0086

    • Peer Reviewed
  • [Journal Article] The validation of the Helicobacter pylori CagA typing by immunohistochemistry: nationwide application in Indonesia2020

    • Author(s)
      Miftahussurur Muhammad、Doohan Dalla、Syam Ari Fahrial、Nusi Iswan Abbas、Waskito Langgeng Agung、Fauzia Kartika Afrida、Rezkitha Yudith Annisa Ayu、Dewayani Astri、I'tishom Reny、Maulahela Hasan、Uchida Tomohisa、Yamaoka Yoshio
    • Journal Title

      Acta Histochemica

      Volume: 122 Pages: 151594~151594

    • DOI

      10.1016/j.acthis.2020.151594

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High Antibiotic Resistance of Helicobacter pylori and Its Associated Novel Gene Mutations among the Mongolian Population2020

    • Author(s)
      Azzaya Dashdorj、Gantuya Boldbaatar、Oyuntsetseg Khasag、Davaadorj Duger、Matsumoto Takashi、Akada Junko、Yamaoka Yoshio
    • Journal Title

      Microorganisms

      Volume: 8 Pages: 1062~1062

    • DOI

      10.3390/microorganisms8071062

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Role of vacuolating cytotoxin A in Helicobacter pylori infection and its impact on gastric pathogenesis2020

    • Author(s)
      Ansari Shamshul、Yamaoka Yoshio
    • Journal Title

      Expert Review of Anti-infective Therapy

      Volume: 18 Pages: 987~996

    • DOI

      10.1080/14787210.2020.1782739

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Next-Generation Sequencing of the Whole Bacterial Genome for Tracking Molecular Insight into the Broad-Spectrum Antimicrobial Resistance of Helicobacter pylori Clinical Isolates from the Democratic Republic of Congo2020

    • Author(s)
      Tshibangu-Kabamba Evariste、Ngoma-Kisoko Patrick de Jesus、Tuan Vo Phuoc、Matsumoto Takashi、Akada Junko、Kido Yasutoshi、Tshimpi-Wola Antoine、Tshiamala-Kashala Pascal、Ahuka-Mundeke Steve、Mumba Ngoy Dieudonn?、Disashi-Tumba Ghislain、Yamaoka Yoshio
    • Journal Title

      Microorganisms

      Volume: 8 Pages: 887~887

    • DOI

      10.3390/microorganisms8060887

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Letter: are microbes other than Helicobacter pylori associated with gastric cancer? Authors' reply2020

    • Author(s)
      Gantuya Boldbaatar、El-Serag Hashem B.、Yamaoka Yoshio
    • Journal Title

      Alimentary Pharmacology & Therapeutics

      Volume: 51 Pages: 1447~1449

    • DOI

      10.1111/apt.15757

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Population-based study of Helicobacter pylori infection and antibiotic resistance in Bhutan2020

    • Author(s)
      Vilaichone Ratha-korn、Aumpan Natsuda、Ratanachu-ek Thawee、Uchida Tomohisa、Tshering Lotay、Mahachai Varocha、Yamaoka Yoshio
    • Journal Title

      International Journal of Infectious Diseases

      Volume: 97 Pages: 102~107

    • DOI

      10.1016/j.ijid.2020.05.077

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gastric microbiota and Helicobacter pylori in Indonesian population2020

    • Author(s)
      Miftahussurur Muhammad、Waskito Langgeng Agung、El‐Serag Hashem B、Ajami Nadim J.、Nusi Iswan Abbas、Syam Ari Fahrial、Matsumoto Takashi、Rezkitha Yudith Annisa Ayu、Doohan Dalla、Fauzia Kartika Afrida、Maimunah Ummi、Sugihartono Titong、Uchida Tomohisa、Yamaoka Yoshio
    • Journal Title

      Helicobacter

      Volume: 25 Pages: e12695-1~10

    • DOI

      10.1111/hel.12695

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prevalence and Antibiotic Resistance Patterns of Helicobacter pylori Infection in Koh Kong, Cambodia2020

    • Author(s)
      Aumpan Natsuda、Vilaichone Ratha-Korn、Gamnarai Pornpen、Sanglutong Likhasit、Ratanachu-ek Thawee、Mahachai Varocha、Yamaoka Yoshio
    • Journal Title

      Asian Pacific Journal of Cancer Prevention

      Volume: 21 Pages: 1409~1413

    • DOI

      10.31557/APJCP.2020.21.5.1409

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Chemoprevention of gastric cancer development after Helicobacter pylori eradication therapy in an East Asian population: Meta-analysis2020

    • Author(s)
      Sugimoto Mitsushige、Murata Masaki、Yamaoka Yoshio
    • Journal Title

      World Journal of Gastroenterology

      Volume: 26 Pages: 1820~1840

    • DOI

      10.3748/wjg.v26.i15.1820

    • Peer Reviewed
  • [Journal Article] Serum pepsinogens as a gastric cancer and gastritis biomarker in South and Southeast Asian populations2020

    • Author(s)
      Miftahussurur Muhammad、Waskito Langgeng Agung、Aftab Hafeza、Vilaichone Ratha-korn、Subsomwong Phawinee、Nusi Iswan Abbas、Syam Ari Fahrial、Ratanachu-ek Thawee、Doohan Dalla、Siregar Gontar、Rezkitha Yudith Annisa Ayu、Fauzia Kartika Afrida、Mahachai Varocha、Yamaoka Yoshio
    • Journal Title

      PLOS ONE

      Volume: 15 Pages: e0230064-1~10

    • DOI

      10.1371/journal.pone.0230064

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficacy of Omeprazole, Tetracycline, and 4 Times Daily Dosing of Amoxicillin in Helicobacter pylori Eradication in Limited Resource Area in Bhutan: A Prospective Randomized Trial (BHUTAN Study)2020

    • Author(s)
      Vilaichone Ratha-Korn、Aumpan Natsuda、Ratanachu-ek Thawee、Gamnarai Pornpen、Uchida Tomahisa、Tshering Lotay、Mahachai Varocha、Yamaoka Yoshio
    • Journal Title

      Asian Pacific Journal of Cancer Prevention

      Volume: 21 Pages: 1109~1114

    • DOI

      10.31557/APJCP.2020.21.4.1109

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gastric mucosal microbiota in a Mongolian population with gastric cancer and precursor conditions2020

    • Author(s)
      Gantuya Boldbaatar、El Serag Hashem B.、Matsumoto Takashi、Ajami Nadim J.、Uchida Tomohisa、Oyuntsetseg Khasag、Bolor Dashdorj、Yamaoka Yoshio
    • Journal Title

      Alimentary Pharmacology & Therapeutics

      Volume: 51 Pages: 770~780

    • DOI

      10.1111/apt.15675

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 海外Helicobacter pylori疫学調査 : 立案,調査からデータ解析に至るまで(第21回)アフリカでの疫学調査(その3)ルワンダ共和国およびケニア共和国2020

    • Author(s)
      山岡 吉生
    • Journal Title

      Helicobacter research

      Volume: 24 Pages: 211~219

  • [Journal Article] H.pylori遺伝子解析による人類の起源について2020

    • Author(s)
      山岡 吉生
    • Journal Title

      The GI Forefront

      Volume: 15 Pages: 102~104

  • [Presentation] H. pylori Infection Surveillance Across Asia2021

    • Author(s)
      Yoshio Yamaoka
    • Organizer
      International Workshop Series of Gastroenterology Research Opportunities in Antimicrobial Resistance, Metagenomic, Clinical Surveillance and Web-Lab Experiment
    • Int'l Joint Research / Invited
  • [Presentation] Biofilm Formation: What and How to Examine?2021

    • Author(s)
      Kartika Afrida Fauzia, Yoshio Yamaoka
    • Organizer
      International Workshop Series of Gastroenterology Research Opportunities in Antimicrobial Resistance, Metagenomic, Clinical Surveillance and Web-Lab Experiment
    • Int'l Joint Research / Invited
  • [Presentation] Development of a Helicobacter pylori East Asian-type CagA Immunochromatography Assay for Rapid Detection of Antibody in Serum2021

    • Author(s)
      Kartika Afrida Fauzia, Yoshio Yamaoka
    • Organizer
      Korea-Japan Helicobacter research symposium
    • Int'l Joint Research / Invited
  • [Presentation] Molecular epidemiological studies of Helicobacter pylori infection2021

    • Author(s)
      Yoshio Yamaoka
    • Organizer
      Current Advances in gastroenterology and Hepatology 2021 Mongolia
    • Int'l Joint Research / Invited
  • [Presentation] The Japan-Africa Collaborative Research on Helicobacter pylori project2020

    • Author(s)
      Yoshio Yamaoka
    • Organizer
      KEMRI Annual Scientific and Health Conference
    • Int'l Joint Research / Invited
  • [Presentation] Mechanistic insights of metronidazole resistance revealed by Next-Generation Sequencing of whole genome of Helicobacter pylori clinical isolates from the Democratic Republic of Congo2020

    • Author(s)
      Evariste Tshibangu Kabamba., Takashi Matsumoto, Yoshio Yamaoka
    • Organizer
      KEMRI Annual Scientific and Health Conference
    • Int'l Joint Research / Invited
  • [Presentation] Molecular epidemiological studies of Helicobacter pylori infection2020

    • Author(s)
      Yoshio Yamaoka
    • Organizer
      Mongolian Digestive Disease Week 2020
    • Int'l Joint Research / Invited
  • [Presentation] Gastric microbiota and gastroduodenal disease2020

    • Author(s)
      Yoshio Yamaoka
    • Organizer
      Continuing Medical Education XXXV Internal Medicine 2020
    • Int'l Joint Research / Invited
  • [Presentation] Helicobacter pylori infection and gastric microbiota2020

    • Author(s)
      Yoshio Yamaoka
    • Organizer
      The 6th International Symposium on probiotics and prebiotics
    • Int'l Joint Research / Invited
  • [Book] ピロリ除菌治療パーフェクトガイド【電子版付】2020

    • Author(s)
      山岡 吉生、榊 信廣(編集)
    • Total Pages
      244
    • Publisher
      日本医事新報社
    • ISBN
      978-4-7849-4497-2
  • [Remarks] 大分大学医学部環境・予防医学講座

    • URL

      http://www.med.oita-u.ac.jp/phealth2/index.html

  • [Remarks] 大分大学国際教育研究推進機構

    • URL

      http://in-gear.med.oita-u.ac.jp

URL: 

Published: 2021-12-27  

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