| Seasonal variations of the gastro-entero-pancreatic endocrine cells of the frog, Rana dybowskii |
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Hyeung-sik Lee1, Jae-hyen Lee2 |
1Department of Biology, Kyungsan University
2College of Veterinary Medicine, Kyungpook National University |
| 산개구리(rana dybowskii) 위장관내분비세포의 계절적 변이 |
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이형식1, 이재현2 |
1경산대학교 생물학과
2경북대학교 수의과대학 |
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| Abstract |
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Comparing hibernation with active periods, the regional distribution and relative frequencies of gastrointestinal endocrine cells were studied immunohist-ochemically in the GITs of the Rana dybowskii. Six kinds of endocrine cells were identified in this study. In this study, several novel findings were emerged: in hibernation period, the perdominant presence of immunoreactive cells; the widely distributional regions of glucagon-, Gas/CCK- and BPP-immunoreactive cells; the intense reaction of immunostaining against the antiserum; and the existence of 5-HT- and somatostat-in-immunoreactive cells in upper regions of the fundic glands. These results suggest that the gastro-entero-endocrine cells in hibernation period synthesize continuously its gut hormones and accumulate in their cytoplasms. |
| Key Words:
endocrine cell, gastrointestinal tract, Rana dybowskii, immunoreactive cell, active and hibernation period |
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