Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Masatoki, Katayama"'
Publikováno v:
Analytical biochemistry. 604
We analyzed seminal plasma of 88 normozoospermic, 40 oligozoospermic and 32 azoospermic donors. During this study, we focus to record the protamine concentration in the seminal plasma of azoospermic donors. The seminal protamine concentrations were f
Autor:
Ken-Ichi, Shimokawa, Masatoki, Katayama, Yoshifumi, Matsuda, Hidenobu, Takahashi, Izumi, Hara, Hirohisa, Sato
Publikováno v:
Reproductive medicine and biology. 2(3)
Background and Aims: Ovulation involves considerable tissue remodeling in normal ovarian function. These processes are expected to involve matrix metalloproteinases (MMP). Follicular rupture is caused by the degradation of the basement membrane betwe
Autor:
Satoru Kaneko, Masatoki Katayama, Takahiro Tsukimura, Hiromichi Ishikawa, Katsuhiro Suzuki, Kiyoshi Takamatsu, Tadayasu Togawa
Publikováno v:
Biomedical Chromatography. 27:535-538
Monomethylarginine, asymmetric dimethylarginine and symmetric dimethylarginine were separated on a Wakopak Combi ODS with an acetonitrile–100 mm potassium phosphate buffer (pH 7.0; 1:1, v/v). Dimethylarginines were derived from o-phthalaldehyde for
Autor:
Kiyoshi Takamatsu, Satoru Kaneko, Katsuhiro Suzuki, Masatoki Katayama, Yoshifumi Matsuda, Hiromichi Ishikawa
Publikováno v:
BUNSEKI KAGAKU. 60:761-764
We have developed a determination method for alcohol using high-performance liquid chromatography by using a diamond electrode-electrochemical detector. At this time, 4 alcohols (methanol, ethanol, 2-propanol and 1-butanol) were separated on a Shodex
Autor:
Yoshifumi Matsuda, Satoru Kaneko, Kiyoshi Takamatsu, Hiromichi Ishikawa, Katsuhiro Suzuki, Keisuke Miyaji, Masatoki Katayama
Publikováno v:
Journal of Chromatography A. 1216:3117-3121
The new non-reversed transcriptase inhibitor (NRTI) drugs for treatment of acquired immunodeficiency syndrome (AIDS) are reported. An improvement in the sensitivity and selectivity of high-performance liquid chromatography was obtained by diamond ele
Autor:
Masatoki Katayama, Satoru Kaneko, Keisuke Miyaji, Kiyoshi Takamatsu, Hiromichi Ishikawa, Yoshifumi Matsuda
Publikováno v:
Journal of Separation Science. 30:2279-2285
Improvement of the sensitivity and specificity of a simultaneous stress-free screening method for catechol estrogens as a potential prostate cancer marker in urine has been accomplished by HPLC with a diamond-electrode electrochemical detector and a
Publikováno v:
Biomedical Chromatography. 20:440-445
A new, simple and sensitive pre-column high-performance chromatographic method for the determination of diabetes marker d-glucose, 1,5-anhydro-d-glucitol and related compounds is reported. Sugars (d-glucose, d-galactose, d-mannose, sucrose and arabin
Publikováno v:
Biomedical Chromatography. 20:800-805
A new, simple and sensitive pre-column fluorescence derivatization high-performance liquid chromatographic method for the determination of the oxidative DNA stress marker, 8-oxo-7,8-dihydro-2′-deoxyguanosine, was developed. Solid-phase extraction u
Autor:
Hidenobu Takahashi, Ken-ichi Shimokawa, Hirohisa Sato, Izumi Hara, Yoshifumi Matsuda, Masatoki Katayama
Publikováno v:
Reproductive Medicine and Biology. 2:115-119
Background and Aims: Ovulation involves considerable tissue remodeling in normal ovarian function. These processes are expected to involve matrix metalloproteinases (MMP). Follicular rupture is caused by the degradation of the basement membrane betwe
Publikováno v:
Analytical Letters. 36:2659-2667
To investigate human exposure by bisphenol A (BPA) and nonylphenol (NP), BPA and NP in human semen were preliminary monitored by sensitive high performance liquid chromatography (HPLC) by fluorescence pre-labeling with 2-(4-carboxyphenyl)-5,6-dimethy