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采用单通道记录法研究激动剂对青蛙神经肌肉接头的作用效果。

The efficacy of agonists at the frog neuromuscular junction studied with single channel recording.

作者信息

Ogden D C, Colquhoun D

出版信息

Pflugers Arch. 1983 Nov;399(3):246-8. doi: 10.1007/BF00656725.

DOI:10.1007/BF00656725
PMID:6318187
Abstract

The efficacy of acetylcholine, carbachol and suberyldicholine at the frog neuromuscular junction was estimated by single channel recording. The probability of channel opening at high concentration was found to be greater than 0.9 for each, thus showing (a) that their efficacy is high and (b) that the opening rate for the fully-liganded channel is higher than previously thought.

摘要

通过单通道记录评估了乙酰胆碱、卡巴胆碱和辛二酰胆碱在青蛙神经肌肉接头处的效能。发现每种药物在高浓度时通道开放的概率均大于0.9,因此表明:(a)它们的效能很高;(b)完全被配体占据的通道的开放速率比之前认为的要高。

相似文献

1
The efficacy of agonists at the frog neuromuscular junction studied with single channel recording.采用单通道记录法研究激动剂对青蛙神经肌肉接头的作用效果。
Pflugers Arch. 1983 Nov;399(3):246-8. doi: 10.1007/BF00656725.
2
Ion channel block by acetylcholine, carbachol and suberyldicholine at the frog neuromuscular junction.乙酰胆碱、卡巴胆碱和辛二酰胆碱在蛙神经肌肉接头处对离子通道的阻断作用。
Proc R Soc Lond B Biol Sci. 1985 Sep 23;225(1240):329-55. doi: 10.1098/rspb.1985.0065.
3
Fast events in single-channel currents activated by acetylcholine and its analogues at the frog muscle end-plate.乙酰胆碱及其类似物在蛙肌终板激活单通道电流中的快速事件。
J Physiol. 1985 Dec;369:501-57. doi: 10.1113/jphysiol.1985.sp015912.
4
Voltage-dependence of drug-induced conductance in frog neuromuscular junction.青蛙神经肌肉接头中药物诱导电导的电压依赖性。
Proc Natl Acad Sci U S A. 1975 Jun;72(6):2140-4. doi: 10.1073/pnas.72.6.2140.
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Activation of ion channels in the frog endplate by several analogues of acetylcholine.几种乙酰胆碱类似物对蛙终板离子通道的激活作用。
J Physiol. 1991 Feb;433:73-93. doi: 10.1113/jphysiol.1991.sp018415.
6
Open time of channels activated by binding of two distinct agonists.
Nature. 1980 Jul 17;286(5770):291-3. doi: 10.1038/286291a0.
7
Activation of ion channels in the frog end-plate by high concentrations of acetylcholine.高浓度乙酰胆碱对蛙终板离子通道的激活作用。
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Blocking of frog endplate channels by the organic calcium antagonist D600.有机钙拮抗剂D600对蛙终板通道的阻断作用。
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A comparison of current-voltage relations for full and partial agonists.完全激动剂与部分激动剂的电流-电压关系比较。
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Voltage dependence of agonist effectiveness at the frog neuromuscular junction: resolution of a paradox.青蛙神经肌肉接头处激动剂有效性的电压依赖性:一个悖论的解析。
J Physiol. 1975 Oct;251(2):245-70. doi: 10.1113/jphysiol.1975.sp011090.

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本文引用的文献

1
Interaction at end-plate receptors between different choline derivatives.不同胆碱衍生物在终板受体处的相互作用。
Proc R Soc Lond B Biol Sci. 1957 May 7;146(924):369-81. doi: 10.1098/rspb.1957.0018.
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A modification of receptor theory.受体理论的一种修正。
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Kinetic parameters for acetylcholine interaction in intact neuromuscular junction.完整神经肌肉接头中乙酰胆碱相互作用的动力学参数。
培养的非洲爪蟾发育中肌肉细胞的两种乙酰胆碱受体通道:进一步的动力学分析
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Further kinetic analysis of the chemically modified acetylcholine receptor.化学修饰的乙酰胆碱受体的进一步动力学分析。
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5
Activation of ion channels in the frog end-plate by high concentrations of acetylcholine.高浓度乙酰胆碱对蛙终板离子通道的激活作用。
J Physiol. 1988 Jan;395:131-59. doi: 10.1113/jphysiol.1988.sp016912.
6
Chemical kinetic measurements of a mammalian acetylcholine receptor by a fast-reaction technique.运用快速反应技术对哺乳动物乙酰胆碱受体进行化学动力学测量。
Proc Natl Acad Sci U S A. 1987 Dec;84(24):8758-62. doi: 10.1073/pnas.84.24.8758.
7
Kinetics of activation of acetylcholine receptors in a mouse muscle cell line under a range of acetylcholine concentrations.在一系列乙酰胆碱浓度下小鼠肌肉细胞系中乙酰胆碱受体的激活动力学
Biophys J. 1987 Mar;51(3):449-55. doi: 10.1016/S0006-3495(87)83366-0.
8
Fast events in single-channel currents activated by acetylcholine and its analogues at the frog muscle end-plate.乙酰胆碱及其类似物在蛙肌终板激活单通道电流中的快速事件。
J Physiol. 1985 Dec;369:501-57. doi: 10.1113/jphysiol.1985.sp015912.
9
Photoactivation and dissociation of agonist molecules at the nicotinic acetylcholine receptor in voltage-clamped rat myoballs.电压钳制的大鼠肌球中烟碱型乙酰胆碱受体处激动剂分子的光激活和解离
Biophys J. 1985 Aug;48(2):241-6. doi: 10.1016/S0006-3495(85)83777-2.
10
The actions of suxamethonium (succinyldicholine) as an agonist and channel blocker at the nicotinic receptor of frog muscle.琥珀酰胆碱(丁二酰二胆碱)在蛙肌烟碱样受体上作为激动剂和通道阻滞剂的作用。
J Physiol. 1990 Sep;428:155-74. doi: 10.1113/jphysiol.1990.sp018205.
Proc Natl Acad Sci U S A. 1981 Nov;78(11):7200-4. doi: 10.1073/pnas.78.11.7200.
4
Acetylcholine receptor-controlled ion translocation: chemical kinetic investigations of the mechanism.乙酰胆碱受体控制的离子转运:机制的化学动力学研究
Annu Rev Biophys Bioeng. 1983;12:443-73. doi: 10.1146/annurev.bb.12.060183.002303.
5
Fluctuations in the microsecond time range of the current through single acetylcholine receptor ion channels.通过单个乙酰胆碱受体离子通道的电流在微秒时间范围内的波动。
Nature. 1981 Dec 3;294(5840):464-6. doi: 10.1038/294464a0.
6
Improved patch-clamp techniques for high-resolution current recording from cells and cell-free membrane patches.用于从细胞和无细胞膜片进行高分辨率电流记录的改进膜片钳技术。
Pflugers Arch. 1981 Aug;391(2):85-100. doi: 10.1007/BF00656997.
7
Acetylcholine receptor kinetics.乙酰胆碱受体动力学
J Membr Biol. 1981 Feb 28;58(3):161-74. doi: 10.1007/BF01870902.
8
Single acetylcholine-activated channels show burst-kinetics in presence of desensitizing concentrations of agonist.在存在脱敏浓度激动剂的情况下,单个乙酰胆碱激活通道呈现爆发动力学。
Nature. 1980 Jul 3;286(5768):71-3. doi: 10.1038/286071a0.
9
Effects of proteolytic enzymes on function and structure of frog neuromuscular junctions.蛋白水解酶对青蛙神经肌肉接头功能和结构的影响。
J Physiol. 1973 May;230(3):673-88. doi: 10.1113/jphysiol.1973.sp010211.