Sex Differences in Specific Proteins in the Preoptic Medial Nucleus of the Rat Hypothalamus

Abstract
Using two-dimensional gel electrophoresis and a highly sensitive silver stain, specific proteins in adult male and female rat brain were examined. Based on previous studies, the preoptic medial nucleus (POM) of the hypothalamus served as the area of interest, with the parietal cortex acting as control. A significant difference between the sexes was found in the concentration of two proteins in the POM, a difference which was not found in the parietal cortex.

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