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. 2013 Dec 23;2013:387850. doi: 10.1155/2013/387850

Figure 6.

Figure 6

A serial cross section of a seminiferous tubule shows apoptosis in testicular germ cells detected using the TUNEL assay. (a) Control, 400x, no fluorescence indicates no apoptosis in the cells in the testicular tissue; (b) 100 mg/kg/day for 60 days, 400x, fluorescence indicates apoptosis occurring in germ cells, including spermatogonia, pachytene spermatocytes, round spermatids, and elongated spermatids.