Y
Yoshio Yamaoka
Researcher at Oita University
Publications - 574
Citations - 29970
Yoshio Yamaoka is an academic researcher from Oita University. The author has contributed to research in topics: Helicobacter pylori & CagA. The author has an hindex of 80, co-authored 522 publications receiving 26934 citations. Previous affiliations of Yoshio Yamaoka include Michael E. DeBakey Veterans Affairs Medical Center in Houston & Kathmandu.
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Journal ArticleDOI
Traces of human migrations in Helicobacter pylori populations
Daniel Falush,Thierry Wirth,Bodo Linz,Jonathan K. Pritchard,Matthew Stephens,Mark Kidd,Martin J. Blaser,David Y. Graham,Sylvie Vacher,Guillermo I. Perez-Perez,Yoshio Yamaoka,Francis Mégraud,Kristina Otto,Ulrike Reichard,Elena Katzowitsch,Xiaoyan Wang,Mark Achtman,Sebastian Suerbaum +17 more
TL;DR: Helicobacter pylori, a chronic gastric pathogen of human beings, can be divided into seven populations and subpopulations with distinct geographical distributions.
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An African origin for the intimate association between humans and Helicobacter pylori
Bodo Linz,Francois Balloux,Yoshan Moodley,Andrea Manica,Hua Liu,Philippe Roumagnac,Daniel Falush,Christiana Stamer,Franck Prugnolle,Schalk Van der Merwe,Yoshio Yamaoka,David Y. Graham,Emilio Perez-Trallero,Torkel Wadström,Sebastian Suerbaum,Mark Achtman +15 more
TL;DR: It is established that anatomically modern humans were already infected by H. pylori before their migrations from Africa and demonstrate that H.pylori has remained intimately associated with their human host populations ever since.
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Prospective Cohort Study of Transarterial Chemoembolization for Unresectable Hepatocellular Carcinoma in 8510 Patients
Kenichi Takayasu,Shigeki Arii,Iwao Ikai,Masao Omata,Kiwamu Okita,Takafumi Ichida,Yutaka Matsuyama,Yasuni Nakanuma,Masamichi Kojiro,Masatoshi Makuuchi,Yoshio Yamaoka +10 more
TL;DR: TACE showed safe therapeutic modality with a 5-year survival of 26% for unresectable HCC patients and both the degree of liver damage and the tumor-node-metastasis (TNM) system proposed by the Liver Cancer Study Group of Japan demonstrated good stratification of survivals.
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Results of surgical and nonsurgical treatment for small-sized hepatocellular carcinomas: A retrospective and nationwide survey in Japan
Shigeki Arii,Yoshio Yamaoka,Syunji Futagawa,Kyoichi Inoue,Kenichi Kobayashi,Masamichi Kojiro,Masatoshi Makuuchi,Yasuni Nakamura,Kiwamu Okita,Ryusaku Yamada +9 more
TL;DR: In this paper, the authors reviewed the standard results from each treatment based on an extensive survey and found that percutaneous ethanol injection (PEI), hepatic resection (HX), and transcatheter arterial embolization (TCAE) have all been used in the treatment of patients with small-sized hepatocellular carcinomas (HCCs).
Journal Article
Genome-wide Analysis of Gene Expression in Human Hepatocellular Carcinomas Using cDNA Microarray: Identification of Genes Involved in Viral Carcinogenesis and Tumor Progression
Hiroshi Okabe,Seiji Satoh,Tatsushi Kato,Osamu Kitahara,Renpei Yanagawa,Yoshio Yamaoka,Tatsuhiko Tsunoda,Yoichi Furukawa,Yusuke Nakamura +8 more
TL;DR: Examination of expression profiles of 20 primary HCCs and their corresponding noncancerous tissues by means of cDNA microarrays identified a number of genes associated with malignant histological type or invasive phenotype that will make it possible to define the nature of individual tumors.