28-DAY REPEATED ORAL TOXICITY STUDY OF A HYPOLIPIDEMIC AGENT, NK-104 IN RATS
スポンサーリンク
概要
- 論文の詳細を見る
NK-104, an inhibitor of 3-hydroxy-3-methylglutaryl-CoA reductase, was administered orally to Wistar rats at a dose of 2, 10, 50 or 100 mg/kg for 28 days consecutively, and the toxicity of NK-104 and its recovery with 2 weeks cessation of drug treatment were examined. As major clinical signs, loose stool, diarrhea, crouching and emaciation were observed in both sexes at 50 or 100 mg/kg, and all females at 100 mg/kg died or became moribund due to severe emaciation before the completion of treatment. The suppression of body weight gain or decrease in body weight was observed in the female dose group at 50 mg/kg and both sexes at 100 mg/kg. Decreased food intake was observed in both sexes at 100 mg/kg. Moreover, an increase in cholinesterase(Ch.E)in the male dose groups at 50 and 100 mg/kg and an increase in glutamic oxaloacetic transaminase(GOT)and glutamic pyruvic transaminase(GPT)in the female dose group at 50 mg/kg were observed in blood chemistry testing. Macroscopic examination showed thickening of the forestomach mucosa in the groups of 10 mg/kg or more. Microscopic examination revealed hyperkeratosis and hypertrophy of the spinous layer associated with both cell infiltration of the mucosal propria and submucosal edema. In addition, skeletal muscle lesions including atrophy, vacuolation and focal necrosis were observed in the female dose groups at 50 and 100 mg/kg. The above-mentioned microscopic changes were not observed on cessation of drug treatment. The non-toxic dose level of NK-104 in the 28-day repeated oral toxicity study using rats was determined to be 2 mg/kg.
- 日本トキシコロジー学会の論文
- 1998-11-26
著者
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Tanaka Masahiro
Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
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Akashi Takumi
Department Of Clinical Pathology Graduate School Of Medicine Tokyo Medical And Dental University
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Tanaka Masahiro
Graduate School Of Dentistry (department Of Fixed Prosthodontics And Occlusion) Osaka Dental Univers
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Tanaka M
Osaka Dental Univ. Osaka Jpn
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Tanaka Masahiro
Dept. Of Toxicology Fuji Research Laboratoris Kowa Co. Ltd.
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Tanaka Masahiro
Department Of Physics Tohoku University
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Koga Tomoaki
Department Of Molecular Medicine Graduate School Of Pharmaceutical Sciences Global Coe Cell Fate Reg
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Akiba T
Kowa Co. Ltd. Shizuoka Jpn
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Akiba Takashi
Department Of Blood Purification Tokyo Women's Medical University
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Akiba Takashi
Kidney Center Tokyo Medical And Dental University
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Akiba Tomohide
Dept. Of Toxicology Fuji Research Laboratoris Kowa Co. Ltd.
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Akiba Tomohide
Fuji Research Laboratories Pharmaceutical Division Kowa Company Ltd.
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Amano Yukinori
Fuji Research Laboratories Pharmaceutical Division Kowa Company Ltd.
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Koga Teruji
Fuji Reserch Laboratories Pharmaceutical Division Kowa Campany Ltd.
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Akiba Takashi
The Second Department Of Internal Medicine Tokyo Medical And Dental University School Of Medicine
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Tatsuta Mitsuhiro
Department Of Fixed Prosthodontics And Occlusion Osaka Dental University
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Tanaka M
Graduate School Of Dentistry (department Of Fixed Prosthodontics And Occlusion) Osaka Dental Univers
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Akizawa Tadao
Center Of Blood Purification Therapy Wakayama Medical School
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Takeshita Akira
From Reseach Institute Of Angiocardiology And Cardiovascular Clinic Faculty Of Medicine Kyushu Unive
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Amano Yasuji
Fuji Research Laboratories Pharmaceutical Division Kowa Company Ltd.
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ASANUMA Akimune
Fuji Research Laboratories Pharmaceutical Division, Kowa Campany Ltd.
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OKUBO Masato
Fuji Research Laboratories Pharmaceutical Division, Kowa Campany Ltd.
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TANAKA Masahiro
Fuji Research Laboratories Pharmaceutical Division, Kowa Campany Ltd.
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TAKIMOTO Masayoshi
Fuji Research Laboratories Pharmaceutical Division, Kowa Campany Ltd.
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SHIBUTA Tetsuo
Fuji Reserch Laboratories Pharmaceutical Division, Kowa Campany Ltd.
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Okubo M
Fuji Reserch Laboratories Pharmaceutical Division Kowa Campany Ltd.
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Shibuta Tetsuo
Fuji Reserch Laboratories Pharmaceutical Division Kowa Campany Ltd.
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Asanuma Akimune
Fuji Reserch Laboratories Pharmaceutical Division Kowa Campany Ltd.
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Tatsuta M
Department Of Fixed Prosthodontics And Occlusion Osaka Dental University
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Asai Tomoki
Department Of Homeostasis Medicine And Nephrology Tokyo Medical And Dental University Graduate Schoo
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TANAKA Masahiro
Department of Physics, Tohoku University
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