Doly M, Bonhomme B, Braquet P, Chabrier PE, Meyniel G. Effects of platelet-activating factor on electrophysiology of isolated retinas and their inhibition by BN 52021, a specific PAF-acether receptor antagonist.
IMMUNOPHARMACOLOGY 1987;
13:189-94. [PMID:
3038784 DOI:
10.1016/0162-3109(87)90057-9]
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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.
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