Experimental study reveals higher RFRP-3 expression in the hypothalamus compared to testes in adult male rats, highlighting its dual central and peripheral reproductive roles.
Background: The present study focused on the localization and comparative expression analysis of RFRP-3 gene in the hypothalamus and testis of adult male rats. Methods: Brain and testis tissue samples were collected from adult Wister rats and used for immunohistochemistry for identification and localization RFRP-3 producing neurons. The expression level of the RFRP-3 gene was assessed by Real-time PCR and compared with muscle tissue. Result: The results confirmed the presence of RFRP-3 secreting neurons in the hypothalamus and in the testes. Scattered RFRP-3 in cell bodies was identified primarily in the VMH, DMH and surrounding the third ventricle of the brain. In testis, RFRP-3 was detected in Leydig cells, Sertoli cells and germ cells. The expression level of RFRP-3 gene in the hypothalamus was observed to be significantly higher in hypothalamus than in testicular tissue (p less than 0.01) of adult rats.
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Chaudhuri et al. (2022) studied this question.
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