Increased serum acetylcholine receptor α1 subunit protein in anti-acetylcholine receptor antibody-positive myasthenia gravis

被引:3
作者
Uzawa, Akiyuki [1 ]
Ozawa, Yukiko [1 ]
Yasuda, Manato [1 ]
Oda, Fumiko [1 ]
Kojima, Yuta [1 ,2 ]
Kawaguchi, Naoki [1 ,3 ]
Kanai, Tetsuya [1 ]
Himuro, Keiichi [1 ]
Kuwabara, Satoshi [1 ]
机构
[1] Chiba Univ, Grad Sch Med, Dept Neurol, Chiba, Japan
[2] Kyoto Prefectural Univ Med, Grad Sch Med Sci, Dept Neurol, Kyoto, Japan
[3] Neurol Chiba Clin, Dept Neurol, Chiba, Japan
关键词
Anti-acetylcholine receptor antibody; Neuromuscular junction damage; Biomarker; Myasthenia gravis;
D O I
10.1016/j.jneuroim.2019.577125
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Complement-dependent disruption of motor endplate is detected in anti-acetylcholine receptor (AChR) antibody-positive myasthenia gravis (MG). We measured serum AChR alpha 1 subunit protein levels, which may be associated with neuromuscular damage, in 55 patients with MG (47 were seropositive and 8 were negative) and in 20 controls. Serum AChR alpha 1 subunit protein concentrations were higher in patients with anti-AChR antibody-positive MG than those in controls (P = .04), were negatively correlated with MG activities of daily living score (P = .01), and tended to be higher in ocular MG than in generalized MG. AChR alpha 1 subunit protein elevation may be related to seropositive MG pathogenesis, especially in the ocular type.
引用
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页数:3
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