Medial preoptic neuronal responses to connatural females in sexually inactive male monkeys (Macaca fuscata) |
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Authors: | S Aou H Yoshimatsu Y Oomura |
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Institution: | 1. Department of Biological Control System, National Institute for Physiological Sciences, Okazaki 444 Japan;2. Department of Physiology, Faculty of Medicine, Kyushu University 60, Fukuoka 812 Japan |
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Abstract: | The effect of repeated administration of thyroxine on beta-adrenergic receptor binding was studied in several brain regions in the rat using 3H]dihydroalprenolol as a ligand. Thyroxine treatment resulted in an increased density of beta-adrenergic receptors in the cerebral cortex while a decreased binding was found in subcortical tissue representing the thalamus, striatum and parts of the limbic system. There was no change in binding in the cerebellum or in the brainstem. The results indicate that thyroxine may regulate beta-adrenergic receptors in certain brain areas. |
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Keywords: | medial preoptic area single neuron activity monkey sexual behavior |
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