PMID: 2097170Jan 1, 1990Paper

GABA content and synthesis in the aging rat brain

Experimental Gerontology
N Carfagna, A Moretti

Abstract

The content and synthesis of GABA were measured in the cortex and striatum of young adult (4 months), mature (14 months), and old (24 months) male Wistar rats. GABA synthesis was determined from the GABA accumulation induced by aminooxyacetic acid (AOAA). Aging did not affect GABA content in the cortex (1.03 +/- 0.04 mumoles/g in young and 1.06 +/- 0.04 mumoles/g in old rats), or in the striatum (1.63 +/- 0.04 mumoles/g in young and 1.56 +/- 0.05 mumoles/g in old rats). Aging did not significantly change the AOAA-induced GABA accumulation in the striatum (+34% in young, +16% in mature, and +28% in old rats), but significantly reduced it in the cortex where this process takes place to a greater extent than in the striatum: +164% in young, +116% in mature, and +120% in old animals. It can be concluded that while in the striatum aging did not affect AOAA-induced GABA accumulation, in the cortex this was less in mature than young rats, with no further change in the old ones. GABA content was not affected by aging in either region.

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Citations

Nov 1, 1994·Neurobiology of Aging·S M Turgeon, R L Albin
Apr 1, 1997·Pharmacology, Biochemistry, and Behavior·C SongB E Leonard

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