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首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Distribution of alpha1-adrenoceptor subtype proteins in different tissues of neonatal and adult rats.
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Distribution of alpha1-adrenoceptor subtype proteins in different tissues of neonatal and adult rats.

机译:新生大鼠和成年大鼠不同组织中α1-肾上腺素受体亚型蛋白的分布。

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摘要

Distribution of alpha(1)-adrenoceptor (alpha(1)AR) subtype (alpha(1A), alpha(1B), alpha(1D)) proteins in brain, heart, kidney, and liver of 1-week-old rats and in brain, heart, aorta, kidney, liver, vas deferens, prostate, and adrenal glands of adult rats was investigated by Western analysis, using receptor subtype specific polyclonal antibodies. High levels of immunoreactive alpha(1A)AR and alpha(1D)AR in brain and heart and of alpha(1B)AR in liver and heart of neonatal rats were detected. In adult rat tissues, the abundance of alpha(1A)AR protein was most marked in the brain, intermediate in heart, aorta, liver, vas deferens, and adrenals, and minimal in the kidney and prostate; relative to other tissues, the expression of alpha(1B)AR was higher in brain and heart and that of alpha(1D)AR in brain. All the three receptor subtypes increased with age in the brain cortex, whereas the abundance of alpha(1B)AR increased in the heart but decreased in the liver; alpha(1A)AR and alpha(1D)AR in liver, kidney, and heart were not affected by age. It is concluded that alpha(1)AR subtypes are widely expressed in different neonatal and adult rat tissues.
机译:1周龄大鼠的脑,心脏,肾脏和肝脏中的alpha(1)-肾上腺素能受体(alpha(1)AR)亚型(alpha(1A),alpha(1B),alpha(1D))蛋白的分布使用受体亚型特异性多克隆抗体,通过Western分析研究了成年大鼠的大脑,心脏,主动脉,肾脏,肝脏,输精管,前列腺和肾上腺。在新生大鼠的脑和心脏中检测到高水平的免疫反应性α(1A)AR和α(1D)AR,在肝和心脏中检测到高水平的α(1B)AR。在成年大鼠组织中,大脑中,心脏,主动脉,肝脏,输精管和肾上腺中的α(1A)AR蛋白含量最高,肾脏和前列腺中含量最低。相对于其他组织,α(1B)AR在脑和心脏中的表达较高,而α(1D)AR在脑中的表达较高。所有这三种受体亚型均随年龄增长而在大脑皮层中增加,而α(1B)AR的丰度在心脏中增加而在肝脏中减少;肝脏,肾脏和心脏中的alpha(1A)AR和alpha(1D)AR不受年龄的影响。结论是alpha(1)AR亚型在不同的新生和成年大鼠组织中广泛表达。

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