Abstract
A sensitive and specific radioimmunoassay was employed to measure the immunoreactive luteinizing hormone releasing hormone (LHRH) concentration from localized areas within the olfactory bulbs of adult male and female rats. Although no significant sex differences or lateralization were obtained, LHRH concentration within the posterior half of the olfactory bulb was significantly greater than that obtained in the anterior half for both males and females. The presence of LHRH within the olfactory bulbs and localization to areas involved in the chemical stimulation of reproductive processes suggests the possibility that this olfactory bulb LHRH may be involved in mediating pheromonally stimulated endocrinological responses.
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