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出 处:《中国医学科学院学报》1996年第2期138-142,共5页Acta Academiae Medicinae Sinicae
摘 要:观察了经雷公藤单体T_4处理2h后对正常人和类风湿关节炎(RA)患者外周血单个核细胞(PBMC)及RA患者消化的滑膜单个细胞(RA-DSSC)分泌TNF的影响。在35ng/ml浓度下,正常人PBMC(n=10)及RA-PBMC(n=6)T_4处理组产生TNF活性水平明显低于对照组(P<0.001)。延长T_4作用时间至6h,RA-PBMCT_4处理组TNF活性水平下降更为明显(P<0.001),表明T_4可抑制PBMC体外产生TNF活性水平,其对RA-PBMC作用不同时间的抑制率分别为25.54%及40.51%(P<0.01),说明T_4抑制作用可能与作用时间有关。同时T_4亦可抑制RA-DSSC体外产生TNF活性水平(P<0.01),提示T_4有望成为一新的植物性治疗RA药物。Encouraged by good therapeutic results of the semipurmd preparations of TripterygiumWilfordii Hook(TWH)(code name T Ⅱ)a single active ingredient of TWH with the codename of T4 was obtained.The in vitro effects of T4 on the bioactivity of TNF produced byPBMC of normal subjects(n= 10)and RA patients(n=6)or the RA digested synovium sin-gle cells(DSSC)were studied.The results showed that under pretreatment of PBMC ofhealthy persons with T4(35ng/ml) for two hours,TNF were reduced to 36.13±1.75%incomparison with the control of 63.33 ± 2.51%(P<0.001),with an inhibition rate of40.31%.Similarly,the inhibition rate for the PBMC of RA patients(P<0.001),25.54%.The fact that coculture of PBMC and T4 for 6 hours instead of treatment with T4for 2 hours caused an inhibition rate of 40.51%(P<0.01),might indicate that time of in-teraction was also a factor of importance.T4 also reduced TNF secretion by RA-DSSC from72.1±6.1%to 51.6±2.0%with an inhibition rate of 28.4%.The aformentioned indicatesthat T4 appears to possess suppressive actions on production of TNF by PBMC and DSSC ofRA patients.Therefore,it is possible that T4 may be used clinically for RA patients.
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