Glutamine distribution in mitochondria from normal and acidotic rat kidneys.

Glutamine distribution in mitochondria from normal and acidotic rat kidneys.
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正常和酸中毒大鼠肾脏线粒体中谷氨酰胺的分布。

DOI:
10.1038/ki.1982.96
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发表时间:
1982
影响因子:
19.6
通讯作者:
Hecker,J
Hecker,J
中科院分区:
医学1区
文献类型:
--
作者:
Simpson,D;Hecker,J

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方法实验程序。雄性Sprague-Dawley大鼠,重150 - 200 g,得自King Co.,威斯康星州的麦迪逊,并允许免费获得食物和水。在处死大鼠前5天,为大鼠提供0.28 M氯化铵溶液而不是饮用水,以诱导慢性代谢性酸中毒。如前所述,使用蔗糖-Hepes分离培养基通过差速离心从大鼠肾皮质制备线粒体[5,6]。该制备过程的一个不可或缺的重要部分是从线粒体颗粒中小心地去除”蓬松层”。该步骤去除破碎的线粒体、刷状缘膜和微粒体,通过在线粒体颗粒表面上涡旋少量培养基以去除松散堆积的蓬松层来完成。
Methods Experimental procedures. Male Sprague-Dawley rats, weigh-ing 150 to 200 g, were obtained from King Co., Madison, Wisconsin, and allowed free access to food and water. Rats were provided 0.28 M ammonium chloride solution instead of drinking water for 5 days prior to sacrifice to induce chronic metabolic acidosis.Mitochondria were prepared from rat renal cortex by differential centrifugation using sucrose-Hepes isolation media as described previously [5, 6]. An integral and essential part of this preparation process is the careful removal of the" fluffy layer" from the mitochondrial pellet. This step, which removes broken mitochondria, brushborder membranes, and microsomes, was accomplished by swirling a small amount of medium over the surface of the mitochondrial pellet to remove the loosely packed fluffy layer.
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