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哇巴因对儿茶酚胺分泌及细胞内钾浓度的影响。

The effect of ouabain on the secretion of catecholamines and on the intracellular concentration of potassium.

作者信息

Banks P

出版信息

J Physiol. 1967 Dec;193(3):631-7. doi: 10.1113/jphysiol.1967.sp008383.

Abstract
  1. Perfusion of bovine adrenal glands with 0.1 mM ouabain is accompanied by a doubling of the spontaneous rate of release of catecholamines and by a 66% increase in the response to stimulation with carbamylcholine.2. Perfusion with ouabain (0.1 mM) reduces the intracellular content of potassium from 106 to 63 mM.3. The effect of ouabain on catecholamine secretion is dependent upon the presence of Ca(2+) ions in contrast to the effect upon the potassium content which is not dependent upon the presence of calcium.4. Ouabain has no effect on the release of catecholamines from isolated chromaffin granules both in the presence and absence of Ca(2+) ions.5. A possible relationship between the secretion of catecholamines and the concentration gradient of potassium across the cell membrane is discussed.
摘要
  1. 用0.1 mM哇巴因灌注牛肾上腺,伴随着儿茶酚胺自发释放速率加倍,以及对氨甲酰胆碱刺激的反应增加66%。

  2. 用哇巴因(0.1 mM)灌注可使细胞内钾含量从106 mM降至63 mM。

  3. 哇巴因对儿茶酚胺分泌的影响取决于Ca(2+)离子的存在,而对钾含量的影响则不依赖于钙的存在。

  4. 无论有无Ca(2+)离子,哇巴因对分离的嗜铬颗粒中儿茶酚胺的释放均无影响。

  5. 讨论了儿茶酚胺分泌与跨细胞膜钾浓度梯度之间的可能关系。

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Membrane potential measurement in cells of the adrenal gland.肾上腺细胞的膜电位测量。
J Physiol. 1967 Mar;189(1):139-48. doi: 10.1113/jphysiol.1967.sp008159.
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[The influence of calcium on catecholamine liberation].[钙对儿茶酚胺释放的影响]
Experientia. 1962 Mar 15;18:138-40. doi: 10.1007/BF02153862.
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A lithium internal-standard flame photometer.锂内标火焰光度计。
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Changes in end-plate activity produced by presynaptic polarization.突触前极化引起的终板活动变化。
J Physiol. 1954 Jun 28;124(3):586-604. doi: 10.1113/jphysiol.1954.sp005131.
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Tetrodotoxin and neuromuscular transmission.河豚毒素与神经肌肉传递
Proc R Soc Lond B Biol Sci. 1967 Jan 31;167(1006):8-22. doi: 10.1098/rspb.1967.0010.

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