Turkish Journal of Biology | |
Reproductive Response of Adult Siberian Hamsters to One-Hour Melatonin Infusions | |
BÜLENT GÜNDÜZ1  | |
关键词: Melatonin; Siberian hamster; Photoperiod; Testes; Infusion; | |
学科分类:生物科学(综合) | |
来源: Scientific and Technical Research Council of Turkey - TUBITAK | |
【 摘 要 】
The pineal hormone melatonin is known to play an important role in mediating photoperiodic messages to the reproductive system in seasonal breeding animals. In this study, we investigated whether a 1 h subcutaneous infusion of 50 ng of melatonin at 2000-2100 hours, effective in causing inhibition of testicular development in the juvenile Siberian hamsters (Phodopus sungorus), would cause testicular regression in adults of this species housed on a long photoperiod (LD16:8).Pinealectomized adult hamsters received programmed subcutaneous infusions of 50 or 500 ng of melatonin or vehicle (0.12 ml) at 2000-2100 hours each day for 8 weeks.We found that the testicular weights of infused animals receiving melatonin or vehicle were not different from each other; all animals retained large testes.These results show that a 50 ng melatonin infusion at a particular time point (2000-2100 hours) is not effective in altering the functional status (size) of the testes of adults.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201904036477842ZK.pdf | 69KB | download |