Collaborative work on evaluation of ovarian toxicity 17) Two- or four-week repeated-dose studies and fertility study of sulpiride in female rats
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- Ishii Shun-ichiro
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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- Ube Masayuki
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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- Okada Miyoko
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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- Adachi Tamiko
- Safety Research Laboratory (Kashima), Mitsubishi Tanabe Pharma Corporation
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- Sugimoto Jiro
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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- Inoue Yoshimi
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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- Uno Yoshifumi
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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- Mutai Mamoru
- Safety Research Laboratory (Kazusa), Mitsubishi Tanabe Pharma Corporation
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To find the appropriate dosing period to detect ovarian toxicity, sulpiride, a D2 antagonist was orally dosed to female rats at dose levels of 1, 10, and 100 mg/kg/day daily for 2 or 4 weeks in repeated-dose toxicity studies. In addition, sulpiride at the same dose levels was given to female rats daily during the pre-mating period, mating period, and Days 0-7 of gestation to assess its effect on fertility. In ovarian histology in the 2-week study, increases in atretic follicle were seen at 1 mg/kg or more and increases in follicular cysts at 10 mg/kg or more. In the 4-week study, these findings were seen at 1 mg/kg or more, and a decrease in large follicles was seen at 10 mg/kg or more. Increased body weight gain was observed at 10 mg/kg or more in the 2- and 4-week studies. The females in these groups exhibited development of mammary alveolus by sulpiride-induced hyperprolactinemia. In the fertility study, sulpiride-treated females showing persistent diestrus resulted in successful mating, and almost all females got pregnant. However, increased implantation loss was observed at 10 mg/kg or more, which was considered to be caused by the adverse effect of sulpiride on oocyte development. From these results, sulpiride-induced ovarian toxicity was seen at 1 mg/kg or more in the 2- and 4-week repeated-dose toxicity studies, and the observed ovarian changes were considered to be related to adverse effects on female fertility.
収録刊行物
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- The Journal of Toxicological Sciences
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The Journal of Toxicological Sciences 34 (Special), S175-S188, 2009
一般社団法人 日本毒性学会
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詳細情報 詳細情報について
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- CRID
- 1390282679876815616
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- NII論文ID
- 110007114392
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- NII書誌ID
- AN00002808
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- ISSN
- 18803989
- 03881350
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- NDL書誌ID
- 10177476
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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