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松果体是一个神经内分泌的换能器。外界光源经神经通路传导至松果体,使松果体褪黑激素呈昼夜节律的合成和分泌,高峰在明-暗周期的暗期。近来发现在大鼠青春发育期,下丘脑-垂体-性腺系统对褪黑激素有明显的抑制反应。这些现象与松果体分泌的褪黑激素在青春前期的升降有一定的关系。
Pineal is a neuroendocrine transducer. External light source through the neural pathway to the pineal gland, pineal melatonin melatonin synthesis and secretion of circadian rhythm, the peak in the bright - dark period of the dark period. Recently found that in rat puberty, the hypothalamus - pituitary - gonadal system has a significant inhibitory response to melatonin. These phenomena and pineal secretion of melatonin in pre-teen lift have a certain relationship.