S
Sachiko Okazaki
Researcher at Tokyo University of Agriculture and Technology
Publications - 13
Citations - 234
Sachiko Okazaki is an academic researcher from Tokyo University of Agriculture and Technology. The author has contributed to research in topics: Japanese eel & Viral metagenomics. The author has an hindex of 9, co-authored 13 publications receiving 196 citations. Previous affiliations of Sachiko Okazaki include Gifu University.
Papers
More filters
Journal ArticleDOI
Full genome analysis of bovine astrovirus from fecal samples of cattle in Japan: identification of possible interspecies transmission of bovine astrovirus
Makoto Nagai,Tsutomu Omatsu,Hiroshi Aoki,Konosuke Otomaru,Takehiko Uto,Motoya Koizumi,Fujiko Minami-Fukuda,Hikaru Takai,Toshiaki Murakami,Tsuneyuki Masuda,Hiroshi Yamasato,Mai Shiokawa,Shinobu Tsuchiaka,Yuki Naoi,Kaori Sano,Sachiko Okazaki,Yukie Katayama,Mami Oba,Tetsuya Furuya,Junsuke Shirai,Tetsuya Mizutani +20 more
TL;DR: A viral metagenomics approach was used to investigate fecal samples of Japanese calves with and without diarrhea, and one of 15 strains exhibited low amino acid sequence similarity to other BoAstVs and was clustered separately with porcine astrovirus type 5 in all trees, and ovineAstrovirus in the ORF2 region, suggesting past interspecies transmission.
Journal ArticleDOI
Identification of novel bovine group A rotavirus G15P[14] strain from epizootic diarrhea of adult cows by de novo sequencing using a next-generation sequencer.
Tsuneyuki Masuda,Makoto Nagai,Hiroshi Yamasato,Shinobu Tsuchiaka,Sachiko Okazaki,Yukie Katayama,Mami Oba,Naomi Nishiura,Yukiko Sassa,Tsutomu Omatsu,Tetsuya Furuya,Satoshi Koyama,Junsuke Shirai,Koki Taniguchi,Yoshiki Fujii,Reiko Todaka,Kazuhiko Katayama,Tetsuya Mizutani +17 more
TL;DR: The comprehensive genomic analyses from fecal samples by viral metagenomics using a next-generation sequencer revealed that Tottori-SG had an unreported genotype combination G15P, suggesting that it might have derived from multiple reassortment events from group A rotavirus strains circulating among Japanese cattle.
Journal ArticleDOI
Identification and complete genome analysis of a novel bovine picornavirus in Japan.
Makoto Nagai,Tsutomu Omatsu,Hiroshi Aoki,Yoshihiro Kaku,Graham J. Belsham,Kei Haga,Yuki Naoi,Kaori Sano,Moeko Umetsu,Mai Shiokawa,Shinobu Tsuchiaka,Tetsuya Furuya,Sachiko Okazaki,Yukie Katayama,Mami Oba,Junsuke Shirai,Kazuhiko Katayama,Tetsuya Mizutani +17 more
TL;DR: These viruses had conserved features (e.g. predicted protein cleavage sites, presence of a leader protein, 2A, 2C, 3C, and 3D functional domains), suggesting they have a common ancestor.
Journal ArticleDOI
Detection of a novel herpesvirus from bats in the Philippines
Kaori Sano,Sachiko Okazaki,Satoshi Taniguchi,Joseph S. Masangkay,Roberto Puentespina,Eduardo Eres,Edison Cosico,Niña Quibod,Taisuke Kondo,Hiroshi Shimoda,Yuuki Hatta,Shumpei Mitomo,Mami Oba,Yukie Katayama,Yukiko Sassa,Tetsuya Furuya,Makoto Nagai,Yumi Une,Ken Maeda,Shigeru Kyuwa,Yasuhiro Yoshikawa,Hiroomi Akashi,Tsutomu Omatsu,Tetsuya Mizutani +23 more
TL;DR: A partial genome of a novel gammaherpesvirus detected from wild bats is presented and observations indicate that this herpesvirus may be widely distributed in bat populations in Davao region.
Journal ArticleDOI
H2 genotypes of G4P[6], G5P[7], and G9[23] porcine rotaviruses show super-short RNA electropherotypes.
Makoto Nagai,Saya Shimada,Yoshiki Fujii,Hiromitsu Moriyama,Mami Oba,Yukie Katayama,Shinobu Tsuchiaka,Sachiko Okazaki,Tsutomu Omatsu,Tetsuya Furuya,Satoshi Koyama,Junsuke Shirai,Kazuhiko Katayama,Tetsuya Mizutani +13 more
TL;DR: The first case of H2 NSP5 genotype showing a super-short RNA pattern in porcine RVA is presented, suggesting the possibility of interspecies transmission between pigs and humans and implying that super- short porcines RVA strains possessing H2 genotype are circulating among both asymptomatic and diarrheic Porcine populations in Japan.