Nagel, Gabriele;
Peter, Raphael S.;
Rosenbohm, Angela;
Koenig, Wolfgang;
Dupuis, Luc;
Rothenbacher, Dietrich;
Ludolph, Albert C.
Association of Insulin-like Growth Factor 1 Concentrations with Risk for and Prognosis of Amyotrophic Lateral Sclerosis – Results from the ALS Registry Swabia
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Media type:
E-Article
Title:
Association of Insulin-like Growth Factor 1 Concentrations with Risk for and Prognosis of Amyotrophic Lateral Sclerosis – Results from the ALS Registry Swabia
Contributor:
Nagel, Gabriele;
Peter, Raphael S.;
Rosenbohm, Angela;
Koenig, Wolfgang;
Dupuis, Luc;
Rothenbacher, Dietrich;
Ludolph, Albert C.
Published:
Springer Science and Business Media LLC, 2020
Published in:
Scientific Reports, 10 (2020) 1
Language:
English
DOI:
10.1038/s41598-020-57744-x
ISSN:
2045-2322
Origination:
Footnote:
Description:
AbstractWe investigated the associations of serum concentration of insulin-like growth factor 1 (IGF1) with risk and prognosis of ALS in the ALS registry (October 2010–June 2014, median follow-up 67.6 months) in a case-control and cohort study, respectively. Serum samples were measured for IGF-1. Information on covariates was collected by standardized questionnaire. We applied conditional logistic regression to appraise the risk and Cox proportional hazards models to appraise the prognostic value of IGF-1. Data of 294 ALS patients (mean age 65.4 (SD 11.0) years, 60.2% men) and 504 controls were included in the case-control study. Median serum IGF-1 concentrations were slightly higher in ALS cases than in controls (101 vs. 99.5 ng/ml). IGF-1 concentrations were not associated with ALS risk in the fully adjusted model (top vs. bottom quartile: OR 1.16; 95%-CI 0.73–1.84, p for trend = 0.44). Among 293 ALS cases (mean age 65.5 (SD 10.5) years, 56.8% men) 243 died during follow-up. We found a statistically significant inverse association between continuous IGF-1 concentrations and survival (p = 0.01). Very high values IGF-1 were associated with a better prognosis of ALS suggesting that functions related to IGF-1 could be involved in survival.