Antibiotics Use and Risk of Amyotrophic Lateral Sclerosis in SwedenShow others and affiliations
2019 (English)In: European Journal of Neurology, ISSN 1351-5101, E-ISSN 1468-1331, Vol. 26, no 11, p. 1355-1361Article in journal (Refereed) Published
Abstract [en]
BACKGROUND AND PURPOSE: Previous animal studies have suggested disrupted intestinal microbiome in amyotrophic lateral sclerosis (ALS). Due to the known effect of antibiotics on gut microflora, the potential role of antibiotics use on the risk of ALS deserves an investigation.
METHODS: A nested case-control study was conducted using several Swedish national registers. We included 2,484 ALS patients diagnosed between July 1, 2006 and December 31, 2013 as cases and randomly selected five controls per case who were individually matched to the case by sex, birth year, and area of residence from the general Swedish population. Information on antibiotics prescriptions before ALS diagnosis was extracted from the Prescribed Drug Register for both cases and controls. Conditional logistic regression model was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs).
RESULTS: After accounting for potential diagnostic delay in ALS by excluding all prescriptions within one year before diagnosis, any antibiotics use was associated with a higher risk of ALS. The ORs (95% CIs) were 1.06 (0.94-1.19), 1.13 (1.00-1.28), and 1.18 (1.03-1.35) when comparing one, 2-3, and ≥4 prescriptions to no prescription (P for trend = 0.0069). Similar results were noted for antibiotics used for respiratory infections and urinary tract as well as skin and soft tissue infections. Among different individual antibiotics, the risk of ALS was especially increased in relation to more than two prescriptions of beta-lactamase sensitive penicillin (OR=1.28; 95% CI 1.10-1.50).
CONCLUSIONS: Use of antibiotics, especially repeated, might be associated with a higher subsequent risk of ALS.
Place, publisher, year, edition, pages
Blackwell Publishing, 2019. Vol. 26, no 11, p. 1355-1361
Keywords [en]
Amyotrophic lateral sclerosis, antibiotics, nested case-control study, register-based
National Category
Neurology
Identifiers
URN: urn:nbn:se:oru:diva-74325DOI: 10.1111/ene.13986ISI: 000488977000004PubMedID: 31087715Scopus ID: 2-s2.0-85067384581OAI: oai:DiVA.org:oru-74325DiVA, id: diva2:1316698
2019-05-202019-05-202019-11-13Bibliographically approved