煤工尘肺患者血清细胞因子及氧化损伤水平研究

目的探讨氧化性损伤及两种细胞因子TGF-β1、FGF在煤工尘肺发生发展中的意义。方法分别采用硝酸还原酶法、硫代巴比妥酸显色法、黄嘌呤氧化酶法测定50例煤工尘肺患者与50例健康对照血清NO、MDA、SOD的含量,同时以ELISA法检测血清TGF-β1和FGF蛋白表达水平。结果煤工尘肺患者血清中NO、MDA的含量高于对照组,SOD含量低于对照组,差异均有统计学意义(P<0.05)。三指标相关性分析表明,煤工尘肺患者血清NO与SOD呈负相关关系(P<0.05),而NO与MDA、SOD与MDA均无相关关系(P>0.05);在健康对照中,三指标均无相关关系(P>0.05)。煤工尘肺患者血清中TGF-β1和FGF水平均高于对照组,差异有统计学意义(P<0.05);两指标相关性分析表明,TGF-β1和FGF呈正相关关系(P<0.05)。结论煤工尘肺患者体内氧自由基反应异常、氧化/抗氧化状态失衡、细胞因子表达异常增高,可能与煤工尘肺的发生发展有关联。

Oxidative Injury and Serum Cytokines in Coal Workers with Pneumoconiosis

OBJECTIVE: To inquire into the implication of oxidative injury and two cytokines TGF-beta1 and FGF in the occurrence and development of coal worker's Pneumoconiosis. METHODS: The methods of nitrate reductase, TBA, and xanthine oxidase were used to detect the levels of serum NO, MDA and SOD respectively in 50 patients suffering from coal worker's Pneumoconiosis and 50 healthy controls, then ELISA was performed to detect the level of TGF-beta1 and FGF in the two groups. RESULTS: The levels of NO and MDA in serum of patients with coal worker's Pneumoconiosis were higher than those in the controls; the level of SOD was lower in the patients than in the controls; and there were statistically significant differences between the two groups (P<0.05). Statistically significant differences in TGF-beta1 and FGF were also noted between the two group. CONCLUSION: In this study, the patients with coal worker's Pneumoconiosis were found to have abnormity of oxyradical reaction, unblanced oxidation/antioxidation state, and abnormally high expression of cytokine, which might have relations with the occurrence and development of coal worker's Pneumoconiosis.