Figure 2.

Npre partly improves testis and epididymis size and reinstates sperm in epididymis of BU-treated mice. (A) Representative testis size of mice of the indicated experimental groups (left). Scale bar, 1mm. And the testicular coefficient (testis/body weight) on the right. (B) Representative images of epididymis (left) and the epididymis coefficient (right) of mice. Scale bar = 5 mm. (C) Epididymis sections and proportion of nearly empty tubules of the same mice groups in A. About 10 and 4 male mice were scored for testicular and epididymis coefficient, respectively, in each group. And about 4 biological repeats in each group were used for epididymis section statistics. Data are shown as mean ± SD (^*P < 0.05; ^**P < 0.01).