Fig. 6.

Morphological observations of GnRH neurons and fiber projections in the OVLT and ME in VEH-P0 and DEX-P0 males. Low-magnification photomontage of sagittal sections exhibited IF-GnRH neurons (red) along the caudal olfactory bulb (OB), olfactory tubercule (OT), diagonal band of Broca (DBB), MS, and OVLT/POA in VEH-P0 (a) and DEX-P0 (b) males. Few IF-GnRH neurons were observed along the forebrain distribution in DEX-P0 males. c–j GnRH fiber projections from coronal sections of OVLT and ME in VEH-P0 and DEX-P0 males. High-magnification of white insets illustrating the fiber projections in the OVLT (d, f) and ME (h, j) were shown for VEH-P0 and DEX-P0 males respectively. Thicker varicosities of IF-GnRH fibers were observed in lateral OVLT of DEX-P0 (d) compared to VEH-P0 (f) males. Bars 500 μm (a-b), 50 μm (c, e, g, i) and 20 μm (d, f, h, j)