Zobrazeno 1 - 10
of 674
pro vyhledávání: '"Takeshi Yasumoto"'
Autor:
Ryogo Ukai, Hideaki Uchida, Kouichi Sugaya, Jun-ichi Onose, Naomasa Oshiro, Takeshi Yasumoto, Naoki Abe
Publikováno v:
Toxins, Vol 16, Iss 2, p 89 (2024)
Ciguatoxins (CTXs) stand as the primary toxins causing ciguatera fish poisoning (CFP) and are essential compounds distinguished by their characteristic polycyclic ether structure. In a previous report, we identified the structures of product ions gen
Externí odkaz:
https://doaj.org/article/4e12075f56b7474b9516fcaf5e418b89
Autor:
Naomasa Oshiro, Hiroya Nagasawa, Mio Nishimura, Kyoko Kuniyoshi, Naoki Kobayashi, Yoshiko Sugita-Konishi, Tsuyoshi Ikehara, Katsunori Tachihara, Takeshi Yasumoto
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 2, p 242 (2023)
Ciguatera fish poisoning (CFP) refers to an illness caused by ingesting fish that have accumulated ciguatoxins (CTXs). CFP frequently occurs in the tropical and subtropical Indo-Pacific Ocean and the Caribbean Sea. In Japan, CFP occurs sporadically b
Externí odkaz:
https://doaj.org/article/f314379338c9461eba64f876673f0c20
Autor:
Naomasa Oshiro, Hiroya Nagasawa, Miharu Watanabe, Mio Nishimura, Kyoko Kuniyoshi, Naoki Kobayashi, Yoshiko Sugita-Konishi, Hiroshi Asakura, Katsunori Tachihara, Takeshi Yasumoto
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 3, p 423 (2022)
Ingesting fish contaminated with ciguatoxins (CTXs) originating from epibenthic dinoflagellates causes ciguatera fish poisoning (CFP). CFP occurs mainly in the tropical and subtropical Indo–Pacific region and the Caribbean Sea. Furthermore, it occu
Externí odkaz:
https://doaj.org/article/a52117d442e84a80b72cd41173062441
Akademický článek
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Autor:
Naomasa Oshiro, Hiroya Nagasawa, Kyoko Kuniyoshi, Naoki Kobayashi, Yoshiko Sugita-Konishi, Hiroshi Asakura, Takeshi Yasumoto
Publikováno v:
Toxins, Vol 13, Iss 3, p 218 (2021)
Ciguatera fish poisoning (CFP) is one of the most frequently encountered seafood poisoning syndromes; it is caused by the consumption of marine finfish contaminated with ciguatoxins (CTXs). The majority of CFP cases result from eating fish flesh, but
Externí odkaz:
https://doaj.org/article/b23874dd7851427c9d39c7d65103d683
Publikováno v:
Biotechnology Reports, Vol 11, Iss C, Pp 86-89 (2016)
Protein phosphatase 2A (PP2A) is an enzyme useful for detecting several natural toxins represented by okadaic acid and microcystins. We found that the production of the recombinant human PP2A catalytic subunit (rhPP2Ac) in High Five insect cells coul
Externí odkaz:
https://doaj.org/article/c295485fb05049e38d3d85ad4e7c458a
Autor:
Kazuya Murata, Takeshi Yasumoto
Publikováno v:
Toxins, Vol 11, Iss 10, p 580 (2019)
Ciguatera is the term for poisoning resulting from eating fish from tropical or subtropical regions. The causative toxins collectively named ciguatoxins (CTXs) widely differ in structures depending on their geographic origins, which range from the Pa
Externí odkaz:
https://doaj.org/article/7d92299eaa3541b9951e5b0c3c186887
Autor:
Takeshi Yasumoto, Kaoru Nagai, Satoshi Shimizu, Shoji Kobayashi, Tomoki Tamura, Tomoki Kintaka, Mizuho Koshishiba
Publikováno v:
The Journal of Organic Chemistry. 86:2602-2620
The first total syntheses of hericenones C-H and "putative 3-hydroxyhericenone F" were achieved. Highlights of the synthesis include the straightforward construction of the resorcinol core and geranyl side chain, assembly of the natural product skele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37ee4baaa44a17dac01eb762081917dc
https://doi.org/10.1021/acs.joc.0c02681
https://doi.org/10.1021/acs.joc.0c02681
Autor:
Masayuki Satake, Takeshi Yasumoto
Publikováno v:
Chirality. 32:474-483
Marine dinoflagellates produce a unique family of bioactive substances featuring multiple ether rings aligned in a ladder shape. These are large, complex molecules with potent bioactivity. Targeted chiral centers sit on either the skeletal ladders or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d111383a8f3ecf1245bea78904af6c80
https://doi.org/10.1002/chir.23187
https://doi.org/10.1002/chir.23187
Publikováno v:
Marine Drugs, Vol 10, Iss 3, Pp 655-667 (2012)
Identification of new tetrodotoxin (TTX) analogs from TTX-possessing animals might provide insight into its biosynthesis and metabolism. In this study, four new analogs, 8-epi-5,6,11-trideoxyTTX, 4,9-anhydro-8-epi-5,6,11-trideoxyTTX, 1-hydroxy-8-epi-
Externí odkaz:
https://doaj.org/article/cc03de308bc14254a67d14f43622af25