Document Detail

Anti-aquaporin-4 antibody in Chinese patients with central nervous system inflammatory demyelinating disorders.
MedLine Citation:
PMID:  22749948     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To determine seroprevalence of aquaporin-4 (AQP4) antibody in Chinese patients with central nervous system (CNS) inflammatory demyelinating disorders. METHODS: AQP4 antibody was detected by anti-AQP4 antibody assay. We measured seroprevalence in 200 patients with neuromyelitis optica (NMO, n=44), multiple sclerosis (MS, n=46), transverse myelitis (TM, n=44), optic neuritis (ON, n=13), acute disseminated encephalomyelitis (ADEM, n=2), and other neurological diseases (OND, n=51). RESULTS: AQP4 antibody seropositivity was 88.6% in patients with NMO, 4.3% in patients with MS, 30.8% in patients with ON and 51.7% in patients with LETM (longitudinally extensive TM). No patients with acute partial TM, ADEM, OND were positive for AQP4 antibody. Sensitivity of the test was 88.6% (95% CI 80-95) in patients with NMO. Specificity is 97.9% (95% CI 95.1-100) in 46 MS patients, with 51 OND patients as the control group. If the patients with recurrent ON, LETM were considered high risk for NMO (n=37) and the remaining patients (n=119) were considered controls, the sensitivity of this assay would be 48.6% (95% CI 33.4-64.1) and the specificity 97.5% (95% CI 94.7-100). CONCLUSION: This study confirms that AQP4 antibody is a sensitive and specific biomarker for discrimination between NMO and other CNS autoimmune diseases.
Youming Long; Wei Qiu; Xueqiang Hu; Fuhua Peng; Zhengqi Lu; Yuge Wang; Yu Yang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-30
Journal Detail:
Title:  Clinical neurology and neurosurgery     Volume:  -     ISSN:  1872-6968     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-7-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502039     Medline TA:  Clin Neurol Neurosurg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou 510630, Guangdong Province, People's Republic of China; Department of Neurology, Clinical College, The First Affiliated Hospital of Guangdong Pharmaceutical University, 19 Nonglinxia Road, Guangzhou 510080, Guangdong Province, People's Republic of China.
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