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细胞外钾离子的清除:雄蜂视网膜中神经胶质细胞进行空间缓冲的证据。

Clearance of extracellular potassium: evidence for spatial buffering by glial cells in the retina of the drone.

作者信息

Gardner-Medwin A R, Coles J A, Tsacopoulos M

出版信息

Brain Res. 1981 Mar 30;209(2):452-7. doi: 10.1016/0006-8993(81)90169-4.

DOI:10.1016/0006-8993(81)90169-4
PMID:6261870
Abstract

Work with ion-selective microelectrodes on the retina of the honeybee drone has shown that potassium is released from photoreceptors during activity and enters glial cells. Measurements of the extracellular voltage gradients indicate that, in this preparation, currents flowing through the glial cells in the 'spatial buffer' pattern account for a large fraction of the glial K+ entry in the active region of the tissue.

摘要

对雄蜂视网膜上的离子选择性微电极进行的研究表明,在活动期间钾离子从光感受器释放出来并进入神经胶质细胞。细胞外电压梯度的测量结果表明,在这种制备物中,以“空间缓冲”模式流经神经胶质细胞的电流在组织的活跃区域中占神经胶质细胞钾离子进入量的很大一部分。

相似文献

1
Clearance of extracellular potassium: evidence for spatial buffering by glial cells in the retina of the drone.细胞外钾离子的清除:雄蜂视网膜中神经胶质细胞进行空间缓冲的证据。
Brain Res. 1981 Mar 30;209(2):452-7. doi: 10.1016/0006-8993(81)90169-4.
2
[The role of the glial cells in the maintenance of the ionic environment of the photoreceptors of the retina of the drone (author's transl)].[神经胶质细胞在维持雄蜂视网膜光感受器离子环境中的作用(作者译)]
Klin Monbl Augenheilkd. 1978 Apr;172(4):449-51.
3
Free concentrations of Na, K, and Cl in the retina of the honeybee drone: stimulus-induced redistribution and homeostasis.雄蜂视网膜中钠、钾和氯的游离浓度:刺激诱导的重新分布和内稳态。
Ann N Y Acad Sci. 1986;481:303-17. doi: 10.1111/j.1749-6632.1986.tb27160.x.
4
Modification of potassium movement through the retina of the drone (Apis mellifera male) by glial uptake.通过神经胶质细胞摄取对钾离子在雄蜂视网膜中的移动进行调节。
J Physiol. 1983 Jul;340:157-74. doi: 10.1113/jphysiol.1983.sp014756.
5
Ionic and possible metabolic interactions between sensory neurones and glial cells in the retina of the honeybee drone.蜜蜂雄蜂视网膜中感觉神经元与神经胶质细胞之间的离子及可能的代谢相互作用。
J Exp Biol. 1981 Dec;95:75-92. doi: 10.1242/jeb.95.1.75.
6
Increase in glial intracellular K+ in drone retina caused by photostimulation but not mediated by an increase in extracellular K+.光刺激引起雄蜂视网膜中神经胶质细胞内钾离子增加,但并非由细胞外钾离子增加介导。
Glia. 1989;2(4):213-22. doi: 10.1002/glia.440020402.
7
Potassium activity in photoreceptors, glial cells and extracellular space in the drone retina: changes during photostimulation.雄蜂视网膜中光感受器、神经胶质细胞和细胞外空间的钾离子活性:光刺激期间的变化
J Physiol. 1979 May;290(2):525-49. doi: 10.1113/jphysiol.1979.sp012788.
8
Effects of photoreceptor metabolism on interstitial and glial cell pH in bee retina: evidence of a role for NH4+.光感受器代谢对蜜蜂视网膜间质细胞和神经胶质细胞pH值的影响:NH4+作用的证据。
J Physiol. 1996 Sep 1;495 ( Pt 2)(Pt 2):305-18. doi: 10.1113/jphysiol.1996.sp021595.
9
[Studies on potassium transport through glial cell membranes (author's transl)].关于钾离子通过神经胶质细胞膜转运的研究(作者译)
Klin Monbl Augenheilkd. 1980 Apr;176(4):522-3. doi: 10.1055/s-2008-1057491.
10
Chloride enters glial cells and photoreceptors in response to light stimulation in the retina of the honey bee drone.在雄蜂视网膜中,氯离子会响应光刺激进入神经胶质细胞和光感受器。
Glia. 1989;2(5):287-97. doi: 10.1002/glia.440020502.

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Blockade of astrocyte metabolism causes delayed excitation as revealed by voltage-sensitive dyes in mouse brainstem slices.星形胶质细胞代谢的阻断会导致延迟兴奋,这在小鼠脑干切片中通过电压敏感染料得以揭示。
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Biophys J. 2000 Jun;78(6):2776-97. doi: 10.1016/S0006-3495(00)76822-6.
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J Physiol. 1983 Jul;340:157-74. doi: 10.1113/jphysiol.1983.sp014756.
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Changes of extracellular potassium activity induced by electric current through brain tissue in the rat.电流通过大鼠脑组织所诱导的细胞外钾离子活性变化
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