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血小板激活因子对离体视网膜电生理学的影响及其被特异性血小板激活因子-乙酰醚受体拮抗剂BN 52021的抑制作用。

Effects of platelet-activating factor on electrophysiology of isolated retinas and their inhibition by BN 52021, a specific PAF-acether receptor antagonist.

作者信息

Doly M, Bonhomme B, Braquet P, Chabrier P E, Meyniel G

出版信息

Immunopharmacology. 1987 Jun;13(3):189-94. doi: 10.1016/0162-3109(87)90057-9.

DOI:10.1016/0162-3109(87)90057-9
PMID:3038784
Abstract

The effects of (R)PAF-acether have been tested on the isolated rat retina model. Results indicate that (R)PAF-acether inhibits the electrophysiological response (electroretinogram) elicited on isolated retina by a brief light flash. Immediately after the administration of (R)PAF-acether, an irreversible decrease of the electroretinogram b-wave amplitude is observed. This effect is dose-dependent (2 X 10(-11) M, 2 X 10(-9) M, 2 X 10(-7) M) and partially inhibited by simultaneous administration of Ginkgolide B (BN 52021; 2 X 10(-5) M). These results suggest the existence of (R)PAF-acether-specific receptors inside the retina.

摘要

已在离体大鼠视网膜模型上测试了(R)-血小板活化因子(PAF-乙醚)的作用。结果表明,(R)-PAF-乙醚抑制短暂闪光在离体视网膜上引发的电生理反应(视网膜电图)。给予(R)-PAF-乙醚后立即观察到视网膜电图b波振幅不可逆降低。这种效应呈剂量依赖性(2×10⁻¹¹M、2×10⁻⁹M、2×10⁻⁷M),并被同时给予银杏内酯B(BN 52021;2×10⁻⁵M)部分抑制。这些结果表明视网膜内存在(R)-PAF-乙醚特异性受体。

相似文献

1
Effects of platelet-activating factor on electrophysiology of isolated retinas and their inhibition by BN 52021, a specific PAF-acether receptor antagonist.血小板激活因子对离体视网膜电生理学的影响及其被特异性血小板激活因子-乙酰醚受体拮抗剂BN 52021的抑制作用。
Immunopharmacology. 1987 Jun;13(3):189-94. doi: 10.1016/0162-3109(87)90057-9.
2
Effects of PAF-acether on electrophysiological response of isolated retina.血小板活化因子对离体视网膜电生理反应的影响。
Int J Tissue React. 1987;9(1):33-7.
3
Changes in cytosolic free calcium induced by platelet-activating factor in rabbit platelets: specific inhibition by BN 52021 and structurally related compounds.
Agents Actions Suppl. 1986;20:87-97.
4
Inhibition of transmembrane movement and metabolism of platelet activating factor (PAF-acether) by a specific antagonist, BN 52021.一种特异性拮抗剂BN 52021对血小板活化因子(PAF-乙醚)跨膜转运和代谢的抑制作用
Biochem Biophys Res Commun. 1985 Oct 30;132(2):460-6. doi: 10.1016/0006-291x(85)91156-8.
5
Inhibition of the metabolism of platelet activating factor (PAF-acether) by three specific antagonists from Ginkgo biloba.银杏叶中三种特异性拮抗剂对血小板活化因子(PAF-乙醚)代谢的抑制作用。
Biochem Pharmacol. 1987 Sep 1;36(17):2749-52. doi: 10.1016/0006-2952(87)90259-0.
6
Proof of the involvement of platelet activating factor (paf-acether) in pulmonary complex immune systems using a specific paf-acether receptor antagonist: BN 52021.使用特异性血小板活化因子(PAF-乙醚)受体拮抗剂BN 52021证明血小板活化因子(PAF-乙醚)参与肺部复杂免疫系统。
Prog Lipid Res. 1986;25(1-4):277-88. doi: 10.1016/0163-7827(86)90057-3.
7
Inhibition by BN 52021 (ginkgolide B) of the binding of [3H]-platelet-activating factor to human neutrophil granulocytes.
Biochem Biophys Res Commun. 1987 Nov 13;148(3):1412-7. doi: 10.1016/s0006-291x(87)80289-9.
8
Comparison of three paf-acether receptor antagonist ginkgolides.三种血小板活化因子乙酰水解酶受体拮抗剂银杏内酯的比较。
Eur J Pharmacol. 1988 Jul 26;152(1-2):101-10. doi: 10.1016/0014-2999(88)90840-0.
9
Interference of BN 52021 (ginkgolide B) with the bronchopulmonary effects of PAF-acether in the guinea-pig.BN 52021(银杏内酯B)对豚鼠中血小板活化因子乙醚(PAF - 乙醚)支气管肺效应的干扰作用
Eur J Pharmacol. 1986 Aug 7;127(1-2):83-95. doi: 10.1016/0014-2999(86)90208-6.
10
Proofs of involvement of PAF-acether in various immune disorders using BN 52021 (ginkgolide B): a powerful PAF-acether antagonist isolated from Ginkgo biloba L.
Adv Prostaglandin Thromboxane Leukot Res. 1986;16:179-98.

引用本文的文献

1
Protective effect of high concentration of BN52021 on retinal contusion in cat eyes.高浓度 BN52021 对猫眼挫伤的保护作用。
BMC Ophthalmol. 2015 May 9;15:50. doi: 10.1186/s12886-015-0030-2.
2
Light-evoked arachidonic acid release in the retina: illuminance/duration dependence and the effects of quinacrine, mellitin and lithium. Light-evoked arachidonic acid release.视网膜中光诱发的花生四烯酸释放:光照度/持续时间依赖性以及奎纳克林、蜂毒素和锂的作用。光诱发的花生四烯酸释放。
Graefes Arch Clin Exp Ophthalmol. 1994 Mar;232(3):167-75. doi: 10.1007/BF00176787.