シマリス(T.asiaticus)における季節外冬眠誘起およびセロトニンの冬眠誘起と維持への関与
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- MURAKAMI Noboru
- Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki
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- KONO Ryota
- Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki
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- NAKAHARA Keiko
- Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki
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- IDA Takanori
- Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki
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- KURODA Haruto
- Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki
書誌事項
- タイトル別名
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- Induction of Unseasonable Hibernation and Involvement of Serotonin in Entrance into and Maintenance of Its Hibernation of Chipmunks T. asiaticus.
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説明
Chipmunks that had been housed at 22°C under a light-dark cycle of 14L:10D for at least one year were exposed to a short photoperiod (10L:14D) and low temperature to induce unseasonable hibernation. We were able to induce hibernation at any time of year and there was no significant difference in the duration of the hibernation bout, the duration of interbout euthermia and duration of bouts of torpor throughout the year; however entrance into hibernation took about 60 days in summer but only about 30 days in any other seasons. In addition, interbout euthermia predominantly occurred during the light phase in winter, whereas in spring interbout euthermia occurred equally in the light and dark phases. These results suggest that both the circadian and circannual systems are linked to hibernation in chipmunks. Subcutaneous infusion of a serotonin antagonist, para-chlorophenylalanine (PCPA), facilitated entrance into and interrupted hibernation in aroused and hibernating chipmunks in summer, respectively. On the other hand, opioid antagonist, naloxone, did not affect hibernation, but extended the period of interbout euthermia. These results suggest that the role of serotonin in entrance into and maintenance of hibernation in chipmunks is independent of the circannual system, and that opioid system may not be involved in hibernation in chipmunks.
収録刊行物
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- The Journal of Veterinary Medical Science
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The Journal of Veterinary Medical Science 62 (7), 763-766, 2000
公益社団法人 日本獣医学会
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詳細情報 詳細情報について
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- CRID
- 1390282681401394816
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- NII論文ID
- 110003920430
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- NII書誌ID
- AA10796138
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- COI
- 1:CAS:528:DC%2BD3cXlvVymsLY%3D
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- ISSN
- 13477439
- 09167250
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- HANDLE
- 10458/1575
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- NDL書誌ID
- 5415853
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- PubMed
- 10945297
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- IRDB
- NDLサーチ
- Crossref
- PubMed
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可