( @ ) Pearson correlation analysis showed , BTLA/CD@ + B expression of the peripheral blood was positively correlated with SOD , CAT , TAOC , IL-@ , IL-@ , GH , RP , BP , and SF ( r = @ , @ , @ , @ , @ , @ , @ , @ , @ , respectively , P < @ , P < @ ) , while it was negative correlated with ROS , MDA , TNF - , IL-@ , ESR , VAS , and BASDAI ( r = -@ , -@ , -@ , -@ , -@ , -@ , -@ , respectively , P < @ , P < @ ) .