Figure 4.(A) A representative photo of testis from 23-week-old control (CT) and COX2 transgenic (TG) male littermates. The size of the testis is reduced in COX2 transgenic mice (n=4). (B) Cross-sections of testis from control (CT) and COX2 transgenic (TG) littermates at 25 weeks. While control testis contains sperms (arrows), sperms were not observed in COX2 transgenic testis. Scale bar=50 μm
