Fig. 3.

5α-reductase-3 immunostaining in benign human tissues. Moderate to low level expressing tissues (representative sections that demonstrate semi-quantitative data in Table I). In testes A,B: 5α-reductase-3 expression was localized to the cytoplasm of Leydig cells (B, arrow). In brain C: 5α-reductase-3 immunostaining was localized to the cytoplasm of neurons (D, arrow). Low levels of 5α-reductase-3 immunostaining were observed in the glandular epithelium of endometrium (E, arrow). 5α-reductase-3 was immunohistochemically undetectable in tonsil (F). Bars: 30 μm.