Research Paper Volume 8, Issue 10 pp 2392—2406
Transgenic expression of cyclooxygenase-2 (COX2) causes premature aging phenotypes in mice
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