• Qi-Bing Liu, Lei Wu, Gui-Xian Zhao, Ping-Ping Cai, Zhen-Xin Li, and Zhi-Ying Wu.
• Department of Neurology, Institute of Neurology, First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian 350005; Department of Neurology, Research Center of Neurology in Second Affiliated Hospital, and The Collaborative Innovation Center for Brain Science, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009; Department of Neurology, Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.
• Chin. Med. J. 2015 Jul 5; 128 (13): 174317471743-7.

BackgroundNeuromyelitis optica (NMO) and multiple sclerosis (MS) are demyelinating disorders of the central nervous system. Interferon regulatory factor 5 (IRF5) is a common susceptibility gene to different autoimmune disorders. However, the association of IRF5 variants with NMO and MS patients has not been well studied. Therefore, we aimed to evaluate whether IRF5 variants were associated with NMO and MS in the Southeastern Han Chinese population.MethodsFour single nucleotide polymorphisms (SNPs) were selected and genotyped by matrix-assisted laser desorption/ionization time of flight mass spectrometry in 111 NMO patients, 145 MS patients and 300 controls from Southeastern China.ResultsNone of these 4 SNPs was associated with NMO or MS patients.ConclusionsOur preliminary study indicates that genetic variants in IRF5 may affect neither NMO nor MS in the Southeastern Han Chinese population. Further studies with a large sample size and diverse ancestry populations are needed to clarify this issue.

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