RT Journal Article SR Electronic T1 Guillain-Barre syndrome outbreak in Peru: Association with polymorphisms in IL-17, ICAM-1 and CD1 JF bioRxiv FD Cold Spring Harbor Laboratory SP 667154 DO 10.1101/667154 A1 Luis Jaramillo-Valverde A1 Kelly S Levano A1 Isolina Villanueva A1 Meylin Hidalgo A1 Marco Cornejo A1 Pilar Mazzetti A1 Mario Cornejo-Olivas A1 Cesar Sanchez A1 Julio A Poterico A1 Julio Valdivia-Silva A1 Heinner Guio YR 2019 UL http://biorxiv.org/content/early/2019/06/21/667154.abstract AB Guillain-Barre Syndrome (GBS) is considered a complex disorder with significant environmental effect and genetic susceptibility. Genetic polymorphisms in CD1E, CD1A, IL-17 and/or ICAM-1 genes had been proposed as susceptibility genetic variants for GBS mainly in Caucasian population. This study explores the association between selected polymorphisms in these genes and GBS susceptibility in confirmed GBS cases reported in mestizo population from northern Peru during the most recent GBS outbreak of May 2018. A total of 9 non-related cases and 11 controls were sequenced for the polymorphic regions of CD1A, CD1E, IL-17 and ICAM-1 genes. We found a significant protective association between heterozygous GA genotype in ICAM-1 gene (241Gly / Arg) and GBS (p <0.047). IL-17 was monomorphic in both controls and patients. No significant differences were found in the frequency of SNPs in CD1A and CD1E between the group with GBS patients and healthy controls. Further studies with larger sample size will be required to validate these findings.