Release of gonadotropins induced by amygdaloid stimulation in the rat.
Release of gonadotropins induced by amygdaloid stimulation in the rat.
复制标题
大鼠杏仁核刺激诱导促性腺激素的释放。
作者：
M. Velasco;S. Taleisnik
在连续光照诱导的持续发情大鼠中，用铁沉积或植入结晶碳脑刺激杏仁核。电化学和化学刺激均能在杏仁核的内侧核或基底外侧复合体产生排卵反应。此外，化学刺激终纹床核对诱导排卵也有效。通过刺激其他区域或当电极束发现终纹受损时，观察到负反应。最终纹的横断可阻断排卵反应，但腹侧杏仁核纤维的横断不能阻断排卵反应。注射阿托品、利血平或氨基甲酸乙酯对抑制杏仁核刺激引起的排卵无效。与对照组相比，经苯甲酸雌二醇刺激去卵巢大鼠基底外侧杏仁核复合体5小时后血浆LH明显升高。还有，电化学杏仁核……
The amygdaloid nuclei were stimulated by iron deposits or by implanting crystalline carbachol in rats in persistent estrus induced by continuous illumination. Both electrochemical and chemical stimulation produced ovulatory response from the medial nucleus or the basolateral complex of the amygdala. Also, chemical stimulation of the bed nucleus of the stria terminalis was effective in inducing ovulation. Negative responses were observed by stimulating other areas or when the stria terminalis was found to be damaged by the electrode tract. The ovulatory response was blocked by transection of the stria terminalis but not by interruption of the ventral amygdalofugal fibers. Injection of atropine, reserpine or urethane was not effective in blocking ovulation inducedby amygdaloid stimulation. Plasma LH was found significantly higher 5 hr after chemical stimulation of the basolateral amygdaloid complex in ovariectomized rats primed with estradiol benzoate as compared to controls. Also, electrochemical amygdaloi...