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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Role of catecholamines and corticosteroids in regulation of the oxidative metabolism in male Clarias batrachus
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Role of catecholamines and corticosteroids in regulation of the oxidative metabolism in male Clarias batrachus

机译：儿茶酚胺和皮质类固醇在雄性胡子Cl的氧化代谢调节中的作用

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摘要

In vivo and in vitro effects of norepinephrine (NE), epinephrine (EP), corticosterone, cortisol, cortisone and metapyrone were studied on the rate of tissue (liver, muscle, kidney and brain) respiration of the male air-breathing fish, Clarias batrachus exposed to natural climatic conditions during winter and summer. Both NE and EP stimulated the respiratory rate of ail the tissues irrespective of the season/water temperature and the mode of treatment. EP in muscle and NE in liver were comparatively more potent. Both the catecholamines were found to be more effective in stimulating tissue respiration during winter than during summer. Similarly, the corticosteroid hormones increased the respiratory rate of all the four tissues both in vivo and in vitro experiments irrespective of the season. Only cortisone had no significant effect on brain tissue respiration during summer. The corticosteroid hormones were also more effective in stimulating fish tissue respiration during winter than during summer. In vivo administration of metapyrone significantly reduced the rate of respiration of ail the tissues. The inhibitory effect of metapyrone was reversed by in vivo administration of the corticoids, These findings suggest that the catecholamines and the corticosteroids are directly involved in the regulation of tissue respiration of C. batrachus. Due to their temperature-independent calorigenic action, these hormones might he acting as emergency hormones for the regulation of fish respiration. [References: 53]
机译：研究了去甲肾上腺素（NE），肾上腺素（EP），皮质酮，皮质醇，可的松和间吡酮的体内和体外作用对雄性呼吸鱼类克拉里亚斯的组织（肝脏，肌肉，肾脏和大脑）呼吸速率的影响在冬季和夏季暴露于自然气候条件下的蝙蝠鱼。不论季节/水温和治疗方式如何，NE和EP均可刺激所有组织的呼吸频率。肌肉中的EP和肝脏中的NE相对更有效。发现两种儿茶酚胺在冬季刺激中比夏季更有效。类似地，不论季节如何，皮质类固醇激素均可提高体内和体外实验中所有四个组织的呼吸频率。在夏季，仅可的松对脑组织呼吸无明显影响。冬季，皮质类固醇激素在刺激鱼组织呼吸方面比夏季更有效。体内施用间吡酮显着降低了所有组织的呼吸速率。体内给予皮质类固醇可逆转间吡喃酮的抑制作用。这些发现表明，儿茶酚胺和皮质类固醇直接参与梭状芽胞杆菌的组织呼吸调节。由于它们具有与温度无关的致热作用，因此这些激素可能用作调节鱼呼吸的紧急激素。 [参考：53]

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