High-performance liquid chromatographic determination of quercetin in human plasma and urine utilizing solid-phase extraction and ultraviolet detection
Ishii, Kazuo, Furuta, Takashi, Kasuya, Yasuji
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (25.08.2003)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (25.08.2003)
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Journal Article
Simultaneous determination of prednisolone, prednisone, cortisol, and cortisone in plasma by GC–MS: Estimating unbound prednisolone concentration in patients with nephrotic syndrome during oral prednisolone therapy
Shibasaki, Hiromi, Nakayama, Hideaki, Furuta, Takashi, Kasuya, Yasuji, Tsuchiya, Mari, Soejima, Akinori, Yamada, Akira, Nagasawa, Toshihiko
Published in Journal of chromatography. B (15.07.2008)
Published in Journal of chromatography. B (15.07.2008)
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Journal Article
Conference Proceeding
Simultaneous determination of androstenedione, 11β-hydroxyandrostenedione, and testosterone in human plasma by stable isotope dilution mass spectrometry
Yokokawa, Akitomo, Yamamoto, Kazuhiro, Omori, Yuhei, Shibasaki, Hiromi, Shinohara, Yoshihiko, Kasuya, Yasuji, Furuta, Takashi
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01.03.2009)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01.03.2009)
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Journal Article
Simultaneous determination of 6β-hydroxycortisol and cortisol in human urine by liquid chromatography with ultraviolet absorbance detection for phenotyping the CYP3A activity determined by the cortisol 6β-hydroxylation clearance
Furuta, Takashi, Mori, Chieko, Suzuki, Atsushi, Shibasaki, Hiromi, Yokokawa, Akitomo, Kasuya, Yasuji
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (05.03.2004)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (05.03.2004)
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Journal Article
Simultaneous determination of endogenous and stable isotope-labelled 6β-hydroxycortisols in human urine by stable isotope dilution mass spectrometry
Suzuki, Atsushi, Shibasaki, Hiromi, Kasuya, Yasuji, Furuta, Takashi
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (05.09.2003)
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (05.09.2003)
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Journal Article
Altered Pharmacokinetics of Prednisolone and Cortisol Suppression During Oral Prednisolone Therapy in Patients with Nephrotic Syndrome
TSUCHIYA, Mari, SOEJIMA, Akinori, YAMADA, Akira, NAGASAWA, Toshihiko, SHIBASAKI, Hiromi, MARUYAMA, Junya, FURUTA, Takashi, KASUYA, Yasuji
Published in JOURNAL OF THE KYORIN MEDICAL SOCIETY (31.03.2004)
Published in JOURNAL OF THE KYORIN MEDICAL SOCIETY (31.03.2004)
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Journal Article
The effect of water loading on the urinary ratio of cortisone to cortisol in healthy subjects and a new approach to the evaluation of the ratio as an index for in vivo human 11β-hydroxysteroid dehydrogenase 2 activity
Yokokawa, Akitomo, Takasaka, Toru, Shibasaki, Hiromi, Kasuya, Yasuji, Kawashima, Soko, Yamada, Akira, Furuta, Takashi
Published in Steroids (01.10.2012)
Published in Steroids (01.10.2012)
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Journal Article
Evidence for the validity of cortisol 6β-hydroxylation clearance as a new index for in vivo cytochrome P450 3A phenotyping in humans
FURUTA, Takashi, SUZUKI, Atsushi, MORI, Chieko, SHIBASAKI, Hiromi, YOKOKAWA, Akitomo, KASUYA, Yasuji
Published in Drug metabolism and disposition (01.11.2003)
Published in Drug metabolism and disposition (01.11.2003)
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Journal Article
Determination of dexamethasone in human plasma and urine by electron-impact mass spectrometry
Minagawa, Kazuo, Kasuya, Yasuji, Baba, Shigeo, Knapp, Gene, Skelly, Jerome P.
Published in Journal of chromatography (01.01.1985)
Published in Journal of chromatography (01.01.1985)
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Journal Article
Use of 11alpha-deuterium labeled cortisol as a tracer for assessing reduced 11beta-HSD2 activity in vivo following glycyrrhetinic acid ingestion in a human subject
Kasuya, Yasuji, Yokokawa, Akitomo, Takashima, Satoshi, Shibasaki, Hiromi, Furuta, Takashi
Published in Steroids (01.02.2005)
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Published in Steroids (01.02.2005)
Journal Article
Hydrolysis of conjugated steroids by the combined use of β-glucuronidase preparations from helix pomatia and ampullaria: determination of urinary cortisol and its metabolites
Shibasaki, Hiromi, Tanabe, Chiharu, Furuta, Takashi, Kasuya, Yasuji
Published in Steroids (01.11.2001)
Published in Steroids (01.11.2001)
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Journal Article
Simultaneous determination of endogenous and stable isotope-labelled 6beta-hydroxycortisols in human urine by stable isotope dilution mass spectrometry
Suzuki, Atsushi, Shibasaki, Hiromi, Kasuya, Yasuji, Furuta, Takashi
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (05.09.2003)
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Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (05.09.2003)
Journal Article
Use of 11α-deuterium labeled cortisol as a tracer for assessing reduced 11β-HSD2 activity in vivo following glycyrrhetinic acid ingestion in a human subject
Kasuya, Yasuji, Yokokawa, Akitomo, Takashima, Satoshi, Shibasaki, Hiromi, Furuta, Takashi
Published in Steroids (01.02.2005)
Published in Steroids (01.02.2005)
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Journal Article
Syntheses of stable isotope-labeled 6β-hydroxycortisol, 6β-hydroxycortisone, and 6β-hydroxytestosterone
Furuta, Takashi, Suzuki, Atsushi, Matsuzawa, Mitsuhiro, Shibasaki, Hiromi, Kasuya, Yasuji
Published in Steroids (01.09.2003)
Published in Steroids (01.09.2003)
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