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. 2018 Oct-Dec;6(4):197–204. doi: 10.4103/JMAU.JMAU_35_18

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Copyright: © 2018 Journal of Microscopy and Ultrastructure

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Photomicrographs of testicular sections stained with proliferating cell nuclear antigen immunohistochemical stain ×400. (a) Group I shows widespread proliferating cell nuclear antigen immunoreaction in the nuclei of spermatogenic cells, especially the spermatogonia (red arrows). (b) Group II displays few proliferating cell nuclear antigen immunopositive cells (arrows). (c) Group III reveals moderate proliferating cell nuclear antigen immunoreaction (arrows). (d) Group IV show increased number of proliferating cell nuclear antigen +ve cells (red bifid arrows)