An ultrastructural demonstration of NADPH-diaphorase/nitric oxide synthase activity in the rat striatal astroglia

Jarosław Całka; Gerald Wolf

Vol 62, No 3 (2003)

Short communication

Submitted: 2012-02-06

Published online: 2003-06-09

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An ultrastructural demonstration of NADPH-diaphorase/nitric oxide synthase activity in the rat striatal astroglia

Jarosław Całka, Gerald Wolf

Folia Morphol 2003;62(3):251-253.

Vol 62, No 3 (2003)

SHORT COMMUNICATIONS

Submitted: 2012-02-06

Published online: 2003-06-09

Abstract

In the present study we have used electron microscopical NADPH-diaphorase (NADPH-d) histochemistry as a visualization procedure for nitric oxide synthase (NOS) to examine patterns of activity in the subcellular distribution of NADPH-d in the rat striatal astroglia. Electron microscopical examination revealed deposition of the NADPH-d reaction product in a nuclear envelope, fragments of endoplasmic reticulum and mitochondria. Predominantly mitochondria of astrocytic "end feet" were labelled. Our ultrastructural observations promote the possibility that astroglial NADPH-d/NOS is involved in adaptation of the local blood flow in the striatal microenvironment.