Author/Editor     Ravnik-Glavač, Metka; Goričar, Katja; Vogrinc, David; Koritnik, Blaž; Lavrenčič, Jakob Gašper; Glavač, Damjan; Dolžan, Vita
Title     Genetic variability of inflammation and oxidative stress genes affects onset, progression of the disease and survival of patients with amyotrophic lateral sclerosis
Type     članek
Vol. and No.     Letnik 13, št. 5
Publication year     2022
Volume     str. 1-16
ISSN     2073-4425 - Genes
Language     eng
Abstract     Inflammation and oxidative stress are recognized as important contributors to amyotrophic lateral sclerosis (ALS) disease pathogenesis. Our aim was to evaluate the impact of selected single-nucleotide polymorphisms in genes involved in inflammation and oxidative stress on ALS susceptibility and modification. One-hundred-and-eighty-five ALS patients and 324 healthy controls were genotyped for nine polymorphisms in seven antioxidant and inflammatory genes using competitive allele-specific PCR. Logistic regression; nonparametric tests and survival analysis were used in the statistical analysis. Investigated polymorphisms were not associated with ALS susceptibility. Carriers of at least one polymorphic SOD2 rs4880 T or IL1B rs1071676 C allele more often had bulbar ALS onset (p = 0.036 and p = 0.039; respectively). IL1B rs1071676 was also associated with a higher rate of disease progression (p = 0.015). After adjustment for clinical parameters; carriers of two polymorphic IL1B rs1071676 C alleles had shorter survival (HR = 5.02; 95% CI = 1.92‐13.16; p = 0.001); while carriers of at least one polymorphic CAT rs1001179 T allele had longer survival (HR = 0.68; 95% CI = 0.47‐0.99; p = 0.046). Our data suggest that common genetic variants in the antioxidant and inflammatory pathways may modify ALS disease. Such genetic information could support the identification of patients that may be responsive to the immune or antioxidant system—based therapies.
Keywords     amiotrofična lateralna skleroza
enonukleotidni polimorfizmi
genotipizacija
amyotrophic lateral sclerosis
single-nucleotide polymorphisms
genotyping