Photoinducible Phase-Specific Light Induction ofCry1Gene in the Pars Tuberalis of Japanese Quail
| العنوان: | Photoinducible Phase-Specific Light Induction ofCry1Gene in the Pars Tuberalis of Japanese Quail |
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| المؤلفون: | Kiyoshi Shimada, Akira Tsukada, Takashi Yoshimura, Shinobu Yasuo, Shizufumi Ebihara, Tsuyoshi Takagi, Masayuki Iigo, Miwa Watanabe |
| المصدر: | Endocrinology. 145:1612-1616 |
| بيانات النشر: | The Endocrine Society, 2004. |
| سنة النشر: | 2004 |
| مصطلحات موضوعية: | Male, endocrine system, medicine.medical_specialty, Pituitary gland, Time Factors, animal structures, Light, Photoperiod, Coturnix, Receptors, G-Protein-Coupled, Endocrinology, biology.animal, Internal medicine, medicine, Animals, Drosophila Proteins, RNA, Messenger, Eye Proteins, reproductive and urinary physiology, Regulation of gene expression, Flavoproteins, biology, biology.organism_classification, Quail, Prolactin, Cryptochromes, PER2, medicine.anatomical_structure, Gene Expression Regulation, Hypothalamus, Pituitary Gland, Photoreceptor Cells, Invertebrate, Pars tuberalis, hormones, hormone substitutes, and hormone antagonists |
| الوصف: | Prolactin (PRL) secretion is regulated by photoperiod in mammals and birds. In mammals, the pars tuberalis (PT) in the pituitary is involved in the regulation of photoperiodic regulation of PRL secretion. In birds, however, hypothalamic vasoactive intestinal peptide is implicated in PRL secretion, and physiological roles of the avian PT remain unknown. In the present study, we show that PRL secretion increases under long days and short days with a night interruptive schedule, both of which also cause gonadal growth in Japanese quail. We have also found Cry1 gene expression in the PT of Japanese quail. Cry1 expression was rhythmic under long and short photoperiods in the PT, and the peak was phase delayed under a lengthened photoperiod. Moreover, expression of Cry1 gene was induced by a light pulse but only when given during the photoinducible phase. In our previous study, we have shown rhythmic Per2 gene expression with a peak in the PT during the early day under various photoperiods. When taken together with the results from the present study, different phase relationships between Per2 and Cry1 in the Japanese quail PT under different photoperiods may decode photoperiodic information and regulate photoperiodic PRL secretion in a manner similar to that of mammals. |
| تدمد: | 1945-7170 0013-7227 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a358ed4942cdc4d1a5d2cf1594435ee8Test https://doi.org/10.1210/en.2003-1285Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....a358ed4942cdc4d1a5d2cf1594435ee8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19457170 00137227 |
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