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Biomedical Chromatography : BMC|March 27, 2019
Identification of conjugation positions of urinary glucuronidated vitamin D3 metabolites by LC/ESI-MS/MS after conversion to MS/MS-fragmentable derivativesYusuke Yoshimura, Ryuichiro Hibi, Akiho Nakata, et al.The Journal of Organic Chemistry|January 27, 2007
Regioselective oxyfunctionalization of unactivated carbons in steroids by a model of cytochrome P-450: osmiumporphyrin complex/tert-butyl hydroperoxide systemTakashi Iida, Shoujiro Ogawa, Keiji Hosoi, et al.Steroids|February 23, 2016
Methods for determination of fingernail steroids by LC/MS/MS and differences in their contents between right and left handsTatsuya Higashi, Kenichiro Yamagata, Yuina Kato, et al.Clinica Chimica Acta; International Journal of Clinical Chemistry|November 23, 2022
Evaluation of thumbnail clipping as a specimen for retrospectively assessing average production of testosteroneTatsuya Higashi, Saki Aso, Hiroaki Horisaki, et al.Steroids|July 11, 2017
Unconjugated bile acids in rat brain: Analytical method based on LC/ESI-MS/MS with chemical derivatization and estimation of their origin by comparison to serum levelsTatsuya Higashi, Shui Watanabe, Koki Tomaru, et al.Journal of Pharmaceutical and Biomedical Analysis|October 15, 2019
Quantitative MALDI-MS/MS assay for serum cortisol through charged derivatizationMasahiro Nakamura, Marina Moritsuna, Keita Yuda, et al.Chemical & Pharmaceutical Bulletin|March 2, 2010
Potential corticoid metabolites: chemical synthesis of 3- and 21-monosulfates and their double-conjugates of tetrahydrocorticosteroids in the 5alpha- and 5beta-seriesRika Okihara, Kuniko Mitamura, Maki Hasegawa, et al.Steroids|May 24, 2011
Biliary bile acids in birds of the Cotingidae family: taurine-conjugated (24R,25R)-3α,7α,24-trihydroxy-5β-cholestan-27-oic acid and two epimers (25R and 25S) of 3α,7α-dihydroxy-5β-cholestan-27-oic acidLee R Hagey, Takashi Iida, Shoujiro Ogawa, et al.Steroids|September 19, 2012
A novel varanic acid epimer--(24R,25S)-3α,7α,12α,24-tetrahydroxy-5β-cholestan-27-oic acid--is a major biliary bile acid in two varanid lizards and the Gila monsterLee R Hagey, Shoujiro Ogawa, Narimi Kato, et al.Steroids|May 28, 2013
An efficient synthesis of 7α,12α-dihydroxy-4-cholesten-3-one and its biological precursor 7α-hydroxy-4-cholesten-3-one: Key intermediates in bile acid biosynthesisShoujiro Ogawa, Biao Zhou, Yusuke Kimoto, et al.Pageof 7