Fig. 2From: Sox9 downregulation in non-obstructive azoospermia by UTF1 and mediator role of POU5F1Immunohistochemistry analysis of non-obstructive human seminiferous tubule. Sox9 expression in the Sertoli cells (A1), UTF1 expression (A2), Merge image of UTF1 and Sox9 and blue DAPI (A3). Blue DAPI for nuclear staining (A4). (Scale bar = 50 μm)Back to article page