Objective To Investigate the effect of oral Tripterygium tincture treatment of rheumatoid arthritis(RA) and to study the immune mechanism.Methods 97 RA patients treated with Tripterygium tincture were analyzed.There were 22 males and 67 females patients,aged 18-55 years old,average(43.22 ± 9.50) years;disease history was 1-20 years duration,average(3.98 ± 2.44) years.Every time the thunder god vine tinctures five ml,two times a day,after half a year,treatment and curative effect evaluation research of the i...