Effects of a nitric oxide synthase inhibitor on prostaglandin-induced aqueous flare elevation in pigmented rabbits.

Abstract:

:To evaluate the possible role of nitric oxide in the pathogenesis of exogenous prostaglandin (PG) induced aqueous flare elevation, we examined the effect of NG-nitro-L-arginine methyl ester (L-NAME), an L-arginine analogue acting as a specific inhibitor of nitric oxide synthase, on the elevation of aqueous flare in pigmented rabbits. L-NAME was injected into the ear vein of the animals. PGE1, PGE2, and PGF2 alpha were administered topically to the cornea using a glass cylinder. Aqueous flare was measured using a laser flare cell meter. PGE1, PGE2, and PGF2 alpha increased the aqueous flare dose dependently (5-100 micrograms/ml). L-NAME inhibited PGE1-, PGE2-, or PGF2 alpha-induced aqueous flare elevation. L-NAME, injected 30-90 min before PG application, inhibited the aqueous flare elevation maximally. We believe that nitric oxide may be involved in the pathogenesis of PG-induced aqueous flare elevation in rabbits.

journal_name

Ophthalmic Res

journal_title

Ophthalmic research

authors

Hiraki S,Zhang XY,Hayasaka S

doi

10.1159/000267912

subject

Has Abstract

pub_date

1996-01-01 00:00:00

pages

260-4

issue

4

eissn

0030-3747

issn

1423-0259

journal_volume

28

pub_type

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