Hydrogen peroxide localization in ocular tissue: an electron microscopic cytochemical study.

Abstract:

:A reduced nicotinamide adenine dinucleotide phosphate (NAD(P)H)-dependent hydrogen peroxide-generating activity of rat ocular tissue was investigated cytochemically utilizing the cerium method. NADPH or NADH oxidation resulted in electron-dense fine granular deposits on the corneal epithelial and endothelial plasma membranes, around the photoreceptors of the retina, and on the processes of the retinal pigmented epithelium. Control specimens incubated in a substrate-free medium did not show any such deposits. These results suggest that, under normal conditions, there is generation of oxidants, such as hydrogen peroxide, in the ocular structures, and that such oxidants can be visualized by cytochemical techniques.

journal_name

Curr Eye Res

journal_title

Current eye research

authors

Atalla LR,Sevanian A,Rao NA

doi

10.3109/02713688808997249

subject

Has Abstract

pub_date

1988-09-01 00:00:00

pages

931-6

issue

9

eissn

0271-3683

issn

1460-2202

journal_volume

7

pub_type

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