肾上腺髓质肾上腺素细胞神经末梢突触囊泡内容物的每日节律性变化，以及松果体切除和假手术对其的影响。

Daily rhythmic changes in synaptic vesicle contents of nerve endings on adrenomedullary adrenaline cells, and their modification by pinealectomy and sham operations.

作者信息

Kachi T, Banerji T K, Quay W B

出版信息

Neuroendocrinology. 1979;28(3):201-11. doi: 10.1159/000122863.

DOI:10.1159/000122863

Abstract

Nerve endings on adrenaline cells in male rat adrenal medullas were investigated by quantitative electron microscopy, with sampling at 8 times during a standard light: dark (12:12) photoperiod. Number (N) per unit area of 2 vesicle types (small clear vesicle, SCV; large granular vesicle, LGV) and % of LGV per total vesicle N were determined. Normal (non-operated) animals showed a circadian rhythm (p less than 0.005) in mean SCVN and one with nearly opposite phase relations in % LGVN. Doubly sham-operated animals had a similar rhythm in %LGVN but diminished circadian change in SCVN. Pinealectomized animals had a circadian pattern in SCVN, but this differed from that of normals in having a 2nd peak, a delay or phase shift of the primary peak, and an increased amplitude of the rhythmic changes.

摘要

通过定量电子显微镜对雄性大鼠肾上腺髓质中肾上腺素细胞的神经末梢进行了研究，在标准的光照：黑暗（12:12）光周期内进行了8次采样。确定了每单位面积2种囊泡类型（小清亮囊泡，SCV；大颗粒囊泡，LGV）的数量（N）以及LGV占总囊泡N的百分比。正常（未手术）动物的平均SCVN呈现昼夜节律（p小于0.005），而LGVN百分比的昼夜节律相位关系几乎相反。双侧假手术动物的LGVN百分比有类似的节律，但SCVN的昼夜变化减弱。松果体切除的动物SCVN有昼夜模式，但与正常动物不同，它有第二个峰值、主峰延迟或相位偏移以及节律变化幅度增加。

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