VP immunoreactivity in the lateral septum of Bcl-2 OE and wild-type mice. A, Wild-type male; B, wild-type female; C, Bcl-2-OE male; D, Bcl-2-OE female. Medial is to the left in all views. VP immunoreactivity was greater in males than in females and was not influenced by genotype. ac, Anterior commissure; CP, caudate putamen; fi, fimbria; LS, lateral septum; V, lateral ventricle. Scale bar, 200 μm.