SOD1 and congenital rubella syndrome: In addition, a significant decline was found in the levels of the enzymatic antioxidants SOD, CAT, and GPx in the CRS-control rats (p<0.001 for all of the three antioxidants) compared with CRS-control and sham ones, while treating with GO in the CRS rats increased the testicular SOD and GPx levels compared with the CRS-control groups (p<0.01 and p<0.001, respectively).