Total score of pain and swelling in joints , uric-acid level and high-sensitivity C-reactive protein level were much lower , and superoxide dismutase level as well as the number of CD4 + CD25 + regulation T cells ( Treg ) and CD4 + CD25 + CD127 - Treg were much higher ( P < 0.05 or P < 0.01 ) in the treatment group than those in the NC group .