重症肌无力患者外周血单个核细胞凋亡调控基因Bcl-2 mRNA的表达及意义The Expression and Significance of Apoptotic Modulating Gene Bcl-2 mRNA of Mononuclear Cells in the Peripheral Blood of Patients with Myasthenia Gravis
张士孟;张晨;刘敏;谢安木;丛志强;
摘要(Abstract)：
目的探讨重症肌无力(MG)患者外周血单个核细胞(PBMC)凋亡调控基因Bcl-2mRNA表达水平与MG的关系。方法应用RT-PCR半定量方法检测45例MG患者(MG组)和30名健康对照组(NC组)PBMCBcl-2mRNA表达的相对含量,对MG患者病情按许贤豪绝对及相对评分法进行量化,激素治疗4周后测定Bcl-2mRNA表达水平。结果(1)MG患者PBMCBcl-2mRNA表达相对含量[(0.513±0.038)%]明显高于NC组[(0.371±0.045)%](P<0.05)。(2)病情以许贤豪绝对及相对标准评分为:轻、中、重及极重组,其PBMCBcl-2mRNA的相对含量分别为(0.466±0.047)%、(0.557±0.029)%、(0.561±0.052)%和(0.637±0.041)%,后3者明显高于轻度组患者(均P<0.05);Bcl-2mRNA的相对含量与其MG患者病情绝对评分呈明显正相关(r=0.767),且具有统计学意义(P<0.01)。(3)激素治疗后各组Bcl-2mRNA表达相对含量分别为(0.256±0.033)%、(0.475±0.045)%、(0.487±0.027)%和(0.481±0.051)%,与治疗前比较均明显降低(P<0.01);治疗后各组病情评分分别为4.29±1.70、20.12±10.79、27.29±11.50和32.20±16.80,均明显下降(P<0.01)。结论肾上腺皮质激素治疗后,MG患者随病情好转,伴PBMC的Bcl-2mRNA升高,提示:检测PBMC的Bcl-2mRNA有可能作为反映MG患者病情及免疫疗效的参数。
关键词(KeyWords)： 重症肌无力;细胞凋亡;Bcl-2 mRNA
基金项目(Foundation): 青岛市科研基金资助项目(ZD01-078)
作者(Author): 张士孟;张晨;刘敏;谢安木;丛志强;
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DOI:
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