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Featured researches published by Yoichi Hasegawa.


Japanese Journal of Hospital Pharmacy | 1995

Measurement of Miconazole Serum Concentration in High-performance Liquid Chromatography.

Yoichi Hasegawa; Takeshi Noro; Munemichi Mizuno; Eiji Kondo; Mamiko Hattori; Yosuke Nakahara; Keitaro Tsushita; Makoto Utsumi; Masao Tanaka

Miconazole (MCZ) serum concentration was measured by high-performance liquid chromatography (HPLC). We assessed whether the internal standard method produced on intra-assay error, and found that the method gave more precise and more reproducible results than absolute calibration curve method. With 0.5μg/ml of MCZ, the coefficient of variation produced by that method was 3.41%, whereas that of the absolute calibration curve method was 5.20%. The concentrations of absolute calibration curve method showed higher values than the internal standard method. This indicated that the internal standard method was far more precise in measuring the MCZ serum concentrations than was the absolute calibration curve method.


Nippon Ishinkin Gakkai Zasshi | 1995

Isolation and Characterization of Elastolytic Proteinase from Aspergillus fumigatus

Yoichi Hasegawa; Toshiaki Nikai; Reiko Yamashita; Yukie Yoshikawa; Hisayoshi Sugihara; Kenji Ogawa; Munemichi Mizuno


Nippon Ishinkin Gakkai Zasshi | 1997

Characterization of Elastolytic Proteinase from Aspergillus flavus : Comparison of Biochemical Properties to the Elastolytic Proteinase from Aspergillus fumigatus.

Yoichi Hasegawa; Toshiaki Nikai; Yoshiyuki Okumura; Kenji Ogawa; Hisayoshi Sugihara


Nippon Ishinkin Gakkai Zasshi | 1999

The role of virulence factor of elastolytic proteinase from Aspergillus fumigatus

Yoichi Hasegawa; Toshiaki Nikai; Yukiko Shibata; Yumiko Komori; Manabu Homma; Kenji Ogawa; Hisayoshi Sugihara


Kekkaku(Tuberculosis) | 2011

Retrospective cohort study of risk factors for adverse effects of antituberculous therapy

Yoshihiro Yamamoto; Yoichi Hasegawa; Kenji Ogawa


Nippon Ishinkin Gakkai Zasshi | 1999

The effect of an Aspergillus fumigatus derived elastolytic proteinase on human neutrophils

Yoichi Hasegawa; Toshiaki Nikai; Kenji Ogawa; Hisayoshi Sugihara


Nippon Ishinkin Gakkai Zasshi | 1997

Elastase from Aspergillus fumigatus

Kenji Ogawa; Yoichi Hasegawa; Toshiaki Nikai; Hisayoshi Sugihara; Kenzo Takagi


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 2014

[Research on the forecasting of trends in demand for pharmacists 2011-2035].

Yoichi Hasegawa; Hiroyuki Sakamaki; Manabu Yamazaki; Susumu Iwatsuki; Sentaro Oide; Mitsukazu Kitada; Yoshiaki Ohashi; Kohji Suda; Masataka Mochizuki


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1965

The Antitumor Activity of 4, 6-Dinitroquinoline 1-Oxide

Toshihiko Okamoto; Yoichi Hasegawa; Tadatoshi Kinoshita; Masako Ishiguro


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 2015

[Learning outcomes of six-year pharmaceutical education program].

Akihiro Nakamura; Yoichi Hasegawa; Miwako Kamei

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