Regional differentiation of sympathetic activity during peripheral heating and cooling in anesthetized rabbits
Regional differentiation of sympathetic activity during peripheral heating and cooling in anesthetized rabbits
复制标题
麻醉兔外周加热和冷却过程中交感神经活动的区域差异
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
E. Simon
中科院分区：
文献类型：
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作者：
W. Riedel;M. Iriki;E. Simon
在麻醉和瘫痪的兔身上，对大约一半的身体皮肤施加热刺激，可引起局部交感神经活动的拮抗性变化。外周降温导致皮肤交感神经活性增加，内脏交感神经活性降低。外周加热导致皮肤交感神经活性降低，同时内脏交感神经活性增加。在不同水平的中枢神经热刺激中也发现了同样的拮抗作用。这种血管运动模式的一致性表明，区域流出的定性分化代表了交感系统典型的体温调节反应。
SummaryThermal stimuli applied to roughly one half of the body skin in anesthetized and paralyzed rabbits evoked antagonistic changes of regional sympathetic activity. Peripheral cooling resulted in an increase of cutaneous sympathetic activity, while visceral sympathetic activity decreased. Peripheral heating induced a decrease of cutaneous sympathetic activity and simultaneously an increase of visceral sympathetic activity. The same antagonism has been found during central nervous thermal stimulation at different levels. This identity of vasomotor patterns reveals that qualitative differentiation of regional outflow represents a typical thermoregulatory response of the sympathetic system.