PI studying nutritional biology at RIKEN Center for Biosystems Dynamics Research & visiting associate professor in Kyoto University. Interested in Drosophila genetics, amino acid, nutrient, microbiota, metabolism, ageing, lifespan, and many othershttps://bsky.app/profile/obataf-lab.bsky.socialhttps://bsky.app/profile/obataf-lab.bsky.social/post/3m7w5sjalqk2iNew study from the lab posted to @biorxivpreprint.bsky.social PhD student Yuka discovered the beautiful mechanism for overcoming nutrient deficiency by microbiota and a new metabolic pathway! Dietary requirement of choline for phospholipids is very complicated https://www.biorxiv.org/content/10.64898/2025.12.11.693343v114 Dec 2025 03:17 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3m7w5sjalqk2ihttps://bsky.app/profile/obataf-lab.bsky.social/post/3m6lzkblzrk22Our new study out @BMC Biology. The first Mosquito study from the lab, driven by a great effort of phd student Yusuke Kato with the hard work of Chisako Sakuma. Amino acid economy meets a blood-sucking insect. https://link.springer.com/10.1186/s12915-025-02460-z27 Nov 2025 09:09 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3m6lzkblzrk22https://bsky.app/profile/obataf-lab.bsky.social/post/3m6dwwoeefs2ba tiny contribution from my lab to the great work! Amino acid biology in tumour growth. Congrats! A pint ahead in Melbourne! [contains quote post or other embedded content]24 Nov 2025 04:01 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3m6dwwoeefs2bhttps://bsky.app/profile/obataf-lab.bsky.social/post/3lypqxfzsuk2cNew study out! We developed the protocol for dietary manipulation of protein and amino acids in marmoset! FGF21 induction and taurine drop observed. Achieved by intra-RIKEN collab and the first author Yuka's effort. Here comes Primate Nutritional Biology! https://www.nature.com/articles/s41598-025-16749-013 Sep 2025 12:15 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3lypqxfzsuk2chttps://bsky.app/profile/obataf-lab.bsky.social/post/3lvsqho5dos2q自分でも気に入っている部分がいくつかあるのですが、そのうちの一つがここのカロリーです。ドーナツはカロリーゼロの衝撃！ [contains quote post or other embedded content]07 Aug 2025 12:29 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3lvsqho5dos2qhttps://bsky.app/profile/obataf-lab.bsky.social/post/3lro26jeuf22wA new review from the lab is out. A phd student Ayano and me summerises the current view of amino acid signalling, revealed by Drosophila genetics. https://www.sciencedirect.com/science/article/pii/S0955067425000857?dgcid=author15 Jun 2025 17:59 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3lro26jeuf22whttps://bsky.app/profile/obataf-lab.bsky.social/post/3lndfncnyys23We are happy to post our first study using common marmosets! We can now manipulate dietary amino acids in primate! FGF21 is highly responsive to dietary amino acids. Via a fruitful collaboration with Takuya Hayashi lab. https://www.biorxiv.org/cgi/content/short/2025.04.14.648667v121 Apr 2025 14:44 +0000at://did:plc:qfzh63da45ka75bsdvjsuvct/app.bsky.feed.post/3lndfncnyys23