Hasegawa M, Goto M, Oshima I, Ebihara S
Department of Animal Physiology, School of Agriculture, Nagoya University, Japan.
Neurosci Biobehav Rev. 1994 Winter;18(4):537-40. doi: 10.1016/0149-7634(94)90008-6.
Circadian rhythms of pineal melatonin release were measured in free-moving pigeons, Japanese quails, and chickens under light-dark cycles followed by constant dim light. Although melatonin levels differed among individual birds, circadian rhythms of melatonin were observed in all of them. Using this technique, we could examine phase shifts of melatonin rhythms and suppression of melatonin release by photic stimulation in pigeons. We could also examine effects of norepinephrine infusion on melatonin release. These results indicate that microdialysis is useful for the study of pineal melatonin rhythms in birds.
在自由活动的鸽子、日本鹌鹑和鸡中，测量了在明暗周期后持续昏暗光照条件下松果体褪黑素释放的昼夜节律。尽管个体鸟类的褪黑素水平有所不同，但在所有鸟类中均观察到了褪黑素的昼夜节律。利用这项技术，我们能够检测鸽子褪黑素节律的相位变化以及光刺激对褪黑素释放的抑制作用。我们还能够检测去甲肾上腺素注入对褪黑素释放的影响。这些结果表明，微透析技术对于研究鸟类松果体褪黑素节律是有用的。
