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Immunohistochemical staining of testicular tissue with Bax and Bcl-2. (a) control group; (b) QUE group; (c) QUE.NPs group; (d) CIS group; (e) CIS + QUE group; (f) CIS + QUE.NPs group; (g) Bax (area%); (h) Bcl-2 (area%); (i) Bax/Bcl-2 ratio. Data are expressed as mean ± SEM (n = 7). Statistical difference: * p < 0.05, ** p < 0.01, and *** p < 0.001. Remarkable marks shown in the figure are as follows: strong expression (curved arrow) and weak expression (black arrow).
