Genetic analysis of immunomodulating factors in sporadic Parkinson's disease

R. Krüger*, C. Hardt, F. Tschentscher, S. Jäckel, W. Kuhn, T. Müller, J. Werner, D. Woitalla, D. Berg, N. Kühnl, G. A. Fuchs, E. J.M. Santos, H. Przuntek, J. T. Epplen, L. Schöls, O. Riess

*Corresponding author for this work

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Abstract

Immunomodulating factors have been shown to play a role in the pathogenesis of Parkinson's disease (PD) by biochemical methods. In order to investigate functionally important genes of the tumor necrosis factor alpha (TNFα) pathway we studied the frequency of DNA polymorphisms in the interleukin 6 (IL6), the TNFα, and the TNFα receptor 1 (TNFR1) genes in 264 sporadic German PD patients and in 183 age and sex matched German healthy controls. Analyzing the TNFα-308 polymorphism we found heterozygous individuals carrying alleles 1 and 2 more frequently in patients with a relative risk of 1.56 (p = 0.046, p(c) = 0.13, χ2 = 3.98). In contrast, the frequency of the B/2 haplotype described by the TNFR1 - 609 and TNFRI + 36 polymorphisms was significantly decreased in our PD patients group (p = 0.0097, p(c) = 0.048, χ2 = 6.69) with a relative risk reduced to 0.52. Our results suggest an involvement of immunomodulating factors in the pathogenesis of sporadic PD as revealed by a molecular genetic approach.

Original languageEnglish
Pages (from-to)553-562
Number of pages10
JournalJournal of Neural Transmission
Volume107
Issue number5
DOIs
Publication statusPublished - 2000
Externally publishedYes

Keywords

  • Factor alpha
  • Genetics
  • Immunomodulation
  • Parkinson's disease
  • Tumor necrosis

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