CD40LG and systemic lupus erythematosus: In the cohort of 96 SLE patients, 68 cases (70.8%) were anti-dsDNA IgG positive, 43 cases (44.8%) were anti-dsDNA IgA positive, 32 cases (33.3%) were anti-dsDNA IgM positive, and 46 cases (47.9%) were anti-C1q antibody positive.