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["认知”与“非认知”暴露对应激激素敏感性及适应策略选择的影响]

[The effect of "cognitive" and "noncognitive" exposures on the sensitivity to stressor hormones and the choice of adaptation strategy].

作者信息

Volchegorskiĭ I A, Kolesnikov O L, Tseĭlikman V E

出版信息

Izv Akad Nauk Ser Biol. 1999 Mar-Apr(2):201-10.

Abstract

Experimental data have shown that repeated exposure to both "cognitive" (recognized by the nervous system) and "noncognitive" (recognized by the immune system) stimuli induces so-called "tolerant (resource-preserving adaptation strategy". This strategy is characterized by enhanced hypoxia tolerance, reduced sensitivity to stress (catabolic) hormones, such as glucocorticoids and adrenomimetics, and increased sensitivity to insulin (central anabolic hormone). Such shifts appear more pronounced in case of "noncognitive" stimulation, which is also capable of inducing a hypocatabolic state. Nonspecific immunostimulation associated with repeated stress is considered as an appreciable stress-limiting process despite initial "cognitivity" of stressogenic stimulation.

摘要

实验数据表明,反复暴露于“认知性”(由神经系统识别)和“非认知性”(由免疫系统识别)刺激下会诱发所谓的“耐受性(资源保存适应策略)”。这种策略的特点是增强缺氧耐受性、降低对应激(分解代谢)激素(如糖皮质激素和拟肾上腺素药)的敏感性,以及增加对胰岛素(中枢合成代谢激素)的敏感性。在“非认知性”刺激的情况下,这种转变似乎更为明显,“非认知性”刺激也能够诱发低分解代谢状态。尽管应激源刺激最初具有“认知性”,但与反复应激相关的非特异性免疫刺激被认为是一个相当重要的应激限制过程。

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