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重症肌无力患者血清MuSK抗体水平检测及其临床意义
引用本文:朱惠民,陈根强,张旭,叶好好.重症肌无力患者血清MuSK抗体水平检测及其临床意义[J].实用全科医学,2011(9):1338-1339,1430.
作者姓名:朱惠民  陈根强  张旭  叶好好
作者单位:浙江省金华职业技术学院医学院内科;浙江省温州医学院附属第一医院神经内科;
基金项目:浙江省金华市科技局资助项目(2006-3-055)
摘    要:目的探讨肌肉特异性酪氨酸激酶抗体(muscle specific tyrosine kinase antibody, MuSKAb)与血清抗体阴性重症肌无力x( seronegative myasthenia gravis, SNMG )的关系。方法应用基因工程方法获得MuSK蛋白,建立MuSKAb的放射免疫法(IPA)检测体系。IPA法测定MG患者156例、健康对照组30例和非MG患者30例血清乙酰胆碱受体抗体(AChRAb)水平.测定34例SNMG患者血清及对照组血清MuSKAb水平。结果①在156例MG患者中,血清AChRAb阳性率为78.2%(122/156例),其AChRAb水平为(1.2703±0.8728)nmol/L,明显高于对照组的(0.2410±0.1098)nmoL/L.P〈0.01。②SPMG组病情严重程度、血清AChRAb水平明显高于SNMG组(P〈0.01),SNMG组与SPMG组性别、发病年龄差异无统计学意义(P〉0.05);③34例SNMG患者血清MuSKAb阳性率为0%(0/34例),但其血清MuSK—Ab水平(0.0283±0.0133)nmol/L明显高于对照组的(0.0141±0.0098)nmol/L,P〈0.05。结论血清MuSKAb在中国人MG中较低。

关 键 词:重症肌无力  乙酰胆碱受体抗体  肌肉特异性酪氨酸激酶抗体  放射免疫法

Detection of Serum Anti-MuSK Antibody in Patents with Myasthenia Gravis and its Clinical Significance
ZHU Hui-min,ZHANG Xu,CHEN Gen-qiang,et al..Detection of Serum Anti-MuSK Antibody in Patents with Myasthenia Gravis and its Clinical Significance[J].Applied Journal Of General Practice,2011(9):1338-1339,1430.
Authors:ZHU Hui-min  ZHANG Xu  CHEN Gen-qiang  
Institution:ZHU Hui-min,ZHANG Xu,CHEN Gen-qiang,et al.Department of Internal Medicine,Medical School,Jinhua Profession and Technology College,Jinhua 321000,Zhejiang,China
Abstract:Objective To evaluate the clinical significance of serum anti muscle specific tyrosine kinase(MuSK) antibody level in diagnosing seronegative myasthenia gravis(SNMG).Methods Recombinant human MuSK(hMuSK) peptide was synthesized by genetic engineering technique.125I-hMuSK was iodinated by revised iodination labeling,then RIA of anti-hMuSK antibody was clinically established.The serum anti-AChR antibody was analyzed by IPA method in 156 cases of MG,30 cases of non-MG patients and 30 cases of health control gr...
Keywords:Myasthenia gravis  Acetylcholine receptor antibodies  Muscle specific tyrosine kinase antibody  Radioimmunoassay  
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