PMID: 2508997Jan 1, 1989Paper

Cells presenting GABA immunoreactivity in the hypothalamus of the cat

Comptes rendus de l'Académie des sciences. Série III, Sciences de la vie
K KitahamaM Jouvet

Abstract

The distribution of GABA-immunoreactive (IR) cells was studied by immunohistochemistry in conjunction with highly specific antiserum GABA in the cat hypothalamus. Colchicine pretreatment made it possible to visualize a large number of labeled cells in the medial preoptic and dorsal hypothalamic areas. In contrast, the ventromedial and anterior hypothalamic nuclei contained only a few labeled cells, and the paraventricular and supraoptic nuclei were devoid of them. A very dense network of GABA-IR presumptive terminals was seen in the ventrolateral posterior hypothalamus where labeled cells could be recognized. The possibility of an involvement of the GABAergic neuronal system in the regulation of sleep-waking cycle is discussed.

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