TY - JOUR TI - Aquaporin-4 Gene Polymorphisms in Neuromyelitis Optica and Recurrent Optic Neuritis AB - Objective: Although Aquaporin-4 (Aqp-4) gene polymorphisms have been extensively studied in neuromyelitis optica spectrum disorder (NMOSD), there islittle evidence on the involvement of Aqp-4 in the pathogenesis of relapsing optic neuritis (RON).Materials and Methods: In our study, we recruited patients who were followed by Istanbul University, Istanbul Faculty of Medicine, Department of Neurology,Multiple Sclerosis and Myelin Disorders Unit between 1979 and 2015. Blood samples of the patients were genotyped for potential variants in the exons and thenearby regions of Aqp-4 gene.Results: The Aqp-4 gene was sequenced in 15 patients with RON who were seronegative, 33 patients with NMOSD, and 30 healthy controls. None of thepatients showed previously described single nucleotide polymorphisms (SNPs). Three new SNPs were identified in non-exonic regions of the gene. One intronicSNP located in close proximity to the fifth exon had a higher prevalence in patients with RON than patients with NMOSD and healthy controls.Conclusion: Aqp-4 SNPs show a considerable heterogeneous geographic distribution and might be involved in RON pathogenesis. AU - Kürtüncü, Murat AU - Cakar, Arman AU - Tuzun, Erdem AU - Bireller, Sinem AU - Ulusoy, Canan AU - Kucukali, Cem Ismail DO - 10.4274/tnd.2020.56492 PY - 2020 JO - Türk Nöroloji Dergisi VL - 26 IS - 2 SN - 1301-062X SP - 122 EP - 125 DB - TRDizin UR - http://search/yayin/detay/387068 ER -