title: Detection of Thyroid Abnormalities in Aquaporin-4 Antibody-Seropositive Optic Neuritis Patients.
abstract: This study retrospectively analyzed the frequency of anti-thyroid antibodies (ATAs) and thyroid disease in patients with optic neuritis (ON).
  
  
  
  Tests of serum thyroglobulin (TG) and thyroid peroxidase (TPO) antibodies and thyroid function were performed in 97 ON patients. Blood also was drawn to test for AQP4-Ab using cell-based and enzyme-linked immunosorbent assays. Comparisons of the frequencies of ATAs, thyroid diseases and thyroid function were performed based on AQP4-Ab status.
  
  
  
  Seropositive AQP4-Ab was found in 47/97 (48.5%) patients. ATA was considered positive in 34/97 (35.1%) patients. The prevalence of ATA was two times higher (P = 0.019) in the AQP4-Ab+ group compared to the AQP4-Ab- group. AQP4-Ab+ ON patients exhibited lower FT3 (P = 0.006) and FT4 (P = 0.025) levels and a higher prevalence of definite Hashimoto thyroiditis (HT) (P = 0.005). Among AQP4-Ab+ patients, those with HT had a worse visual outcome than non-HT patients.
  
  
  
  A high prevalence of ATAs and HT was found in AQP4-Ab+ ON patients, and AQP4-Ab+ patients with HT exhibited worse visual outcomes than non-HT patients.
authors.affiliation: Department of Ophthalmology (SZ), Beijing Hospital, Beijing, China; Department of Ophthalmology (HZ), The First Affiliated Hospital of Chinese People's Liberation Army General Hospital, Beijing, China; Department of Ophthalmology (ST, TC, QX, SW), The Chinese People's Liberation Army General Hospital, Beijing, China; Department of Health Care (XP), The Chinese People's Liberation Army General Staff Department Guard Bureau, Beijing, China; and Department of Ophthalmology (ZL), The Chinese Dongzhimen Hospital, Beijing, China.
authors.forename: Shuo
authors.initials: S
authors.lastname: Zhao
authors.forename: Huanfen
authors.initials: H
authors.lastname: Zhou
authors.forename: Xudong
authors.initials: X
authors.lastname: Peng
authors.forename: Shaoying
authors.initials: S
authors.lastname: Tan
authors.forename: Zihao
authors.initials: Z
authors.lastname: Liu
authors.forename: Tingjun
authors.initials: T
authors.lastname: Chen
authors.forename: Quangang
authors.initials: Q
authors.lastname: Xu
authors.forename: Shihui
authors.initials: S
authors.lastname: Wei
mesh_terms: D000328:Adult; D051401:Aquaporin 4 / Q000097:blood / Q000276:immunology*; D001323:Autoantibodies / Q000097:blood*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009902:Optic Neuritis / Q000175:diagnosis / Q000209:etiology / Q000276:immunology*; D012189:Retrospective Studies; D013959:Thyroid Diseases / Q000150:complications / Q000175:diagnosis* / Q000276:immunology
chemical_list: D051401:Aquaporin 4; D001323:Autoantibodies