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Fig. 1 | Biology of Sex Differences

Fig. 1

From: Perinatal testosterone exposure is critical for the development of the male-specific sexually dimorphic gastrin-releasing peptide system in the lumbosacral spinal cord that mediates erection and ejaculation

Fig. 1

Semi-quantitative analysis of the expression of gastrin-releasing peptide (GRP) in the lumbosacral spinal cord (L5–S1 level). a Depiction of the lower lumbar and upper sacral spinal cord (L5–S1 level), indicating the intraspinal location of the sacral parasympathetic nucleus (SPN, a1), dorsal gray commissure (DGC, a2), and dorsal horn (DH, a3). The areas enclosed in boxes are enlarged in b. These magnified images show the distribution of GRP-immunoreactive fibers in the SPN (b1), DGC (b2), and DH (b3). The lower panels in b show the black-and-white images with a set threshold level corresponding to each upper panel. Scale bars 100 μm

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Biology of Sex Differences

ISSN: 2042-6410

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