Maria Guadalupe Zavala-Cerna, Norma Guadalupe Gonzalez-Montoya, Arnulfo Nava, Jorge I Gamez-Nava, Maria Cristina Moran-Moguel, Roberto Carlos Rosales-Gomez, Susan Andrea Gutierrez-Rubio, Jose Sanchez-Corona, Laura Gonzalez-Lopez, Ingrid Patricia Davalos-Rodriguez, Mario Salazar-Paramo
Peptidyl arginine deiminase IV (PAD 4) is the responsible enzyme for a posttranslational modification called citrullination, originating the antigenic determinant recognized by anti-cyclic citrullinated peptide antibodies (ACPA). Four SNPs (single nucleotide polymorphisms) have been described in PADI4 gene to form a susceptibility haplotype for rheumatoid arthritis (RA); nevertheless, results in association studies appear contradictory in different populations. The aim of the study was to analyze if the presence of three SNPs in PADI4 gene susceptibility haplotype (GTG) is associated with ACPA positivity in patients with RA...
2013: Clinical & Developmental Immunology