Influence of the Light Schedule on the Toxicity of Amitriptyline in Chick Embryos
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- Yoshiyama Yuji
- Division of Clinical Pharmacy, Kyoritsu University of Pharmacy
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- Sugiyama Takashi
- Division of Pathophysiology, Center for Clinical Pharmacy and Clinical Sciences, Kitasato University School of Pharmaceutical Sciences
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- Kanke Motoko
- Division of Clinical Pharmacy, Kyoritsu University of Pharmacy
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Abstract
The cardiac toxicity of amitriptyline and the effect of the light schedule on it were studied in chick embryos. Fertilized eggs of White Leghorns were incubated under dark conditions and investigated, on two occasions, in the light phase and in the dark phase. Amitriptyline was injected into the air sac of fertilized eggs on the 16th day of incubation. Electrocardiograms were recorded 0 to 60 min after the injection. After the administration of amitriptyline 1 mg/egg in the light phase, the heart rate did not differ compared with that in controls. However, the heart rate was significantly decreased by the administration of amitriptyline 2.5 mg/egg and 5 mg/egg in the light phase. The heart rate was significantly decreased by the administration of amitriptyline 1 mg/egg under dark conditions. In addition, arrhythmia was produced by the administration of amitriptyline under dark conditions. These findings indicate that manipulation of the light schedule has a marked influence on the toxicity of amitriptyline in chick embryos.
Journal
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- Biological and Pharmaceutical Bulletin
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Biological and Pharmaceutical Bulletin 27 (2), 229-231, 2004
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204625024256
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- NII Article ID
- 110003608736
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- NII Book ID
- AA10885497
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- ISSN
- 13475215
- 09186158
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- NDL BIB ID
- 6826985
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- PubMed
- 14758040
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed