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目的研究多发性硬化(MS)免疫异常过程中肿瘤坏死因子(TNF-α)和循环细胞间粘附分子-1(cICAM-1)的变化及与血脑屏障(BBB)的相关性。方法用酶联免疫吸附试验(ELISA)及单项琼脂扩散(SIRD)检测临床确诊为MS的31例病人血清及脑脊液(CSF)中TNF-α、cICAM-1及白蛋白(Alb)比值。结果①31例MS患者中Alb比值轻度异常8例(25%),正常者23例;IgG指数增高(>0.7)者21例(68%)。②MS组CSF及血清中可检出高水平TNF-α,较对照组显著增高(P<0.01,P<0.05);CSF中cICAM-1水平较对照组增高明显,差异有显著性(P<0.01)。③活动性MS患者CSF中TNF-α水平较静止期增高,差异有显著性(P<0.01)。两组cICAM-1水平也有显著差异(P<0.05)。④BBB轻微损害 MS的 CSF中 cICAM-1水平较 BBB正常组增高,且与 CSF中 TNF-α水平呈正相关(r=0.478)。结论CSF及血清中高水平TNF-α与cICAM-1可能在MS病人鞘内炎症病理机制中起重要作用,cICAM-1可能成为MS活动的标志。一部分MS有一定程度BBB损害且?
Objective To investigate the changes of tumor necrosis factor-α (TNF-α) and circulating intercellular adhesion molecule-1 (cICAM-1) and their relationship with the blood-brain barrier (BBB) in patients with multiple sclerosis (MS) Methods Serum and cerebrospinal fluid (CSF) TNF-α, cICAM-1 and albumin (Alb) were detected by enzyme linked immunosorbent assay (ELISA) and single agar diffusion (SIRD) in 31 patients with clinically diagnosed MS. Results ① Among the 31 patients with MS, mild Alb abnormality was found in 8 (25%) and normal (23) patients. 21 (68%) patients had elevated IgG index (> 0.7). (2) The level of TNF-α in CSF and serum of MS group was significantly higher than that in control group (P <0.01, P <0.05); the level of cICAM-1 in CSF was significantly higher than that in control group (P <0.01). (3) The level of TNF-α in active MS patients was higher than that in quiescent phase, the difference was significant (P <0.01). There was also a significant difference in cICAM-1 levels between the two groups (P <0.05). ④ The level of cICAM-1 in cerebrospinal fluid of MS patients with mild BBB was higher than that of normal BBB group, and positively correlated with the level of TNF-α in CSF (r = 0.478). Conclusion High levels of TNF-α and cICAM-1 in CSF and serum may play an important role in the pathogenesis of intrathecal inflammation in MS patients. CICAM-1 may be a marker of MS activity. Some MS has some BBB damage and?