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Brain Res. 1980 Dec 8;202(2):488-92.

Aging process affects a single class of dopamine receptors.

Abstract

[3H]Spiroperidol and [3H](-)-sulpiride specific binding have been used to assay for D1 and D2 dopaminergic recognition sites in striatal membranes of aged rats. While [3H]spiroperidol binding shows a decreased number of binding sites, no changes have been detected in [3H](-)-sulpiride binding, which is a marker for D2 dopaminergic receptors. Data obtained with GTP and DA-dependent adenylyl cyclase activity confirm the hypothesis that aging selectively affects in rats those dopaminergic receptors coupled to the formation of cyclic AMP (D1).

PMID:
7437912
DOI:
10.1016/0006-8993(80)90161-4
[Indexed for MEDLINE]

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