BACKGROUND: Several studies have proposed a role for infections to induce an inflammatory response triggering Parkinson's disease. This remains controversial and the influence of severe infections on other α-synucleinopathies (Dementia with Lewy Bodies, Parkinson's disease dementia, and Multiple System Atrophy) has not been adequately investigated. OBJECTIVES: To assess the association between hospitalization-required infections or sepsis and risk of clinically diagnosed α-synucleinopathies. METHODS: Using the medical records-linkage system (Rochester Epidemiology Project), we identified all α-synucleinopathy cases of in Olmsted County (1991-2010). Cases were matched by symptom-onset age and sex to controls. We reviewed complete medical records to detect hospital-required infections or sepsis preceding clinical-motor onset of α-synucleinopathies. We used conditional logistic regression to calculate the odds ratio of all α-synucleinopathies, adjusting for medications, coffee, and smoking. RESULTS: There was no association between infection-related hospitalization (odds ratio: 1.05; 95% confidence interval: 0.78-1.40; P = 0.76) or sepsis (odds ratio: 0.86; 95% confidence interval: 0.40-1.85; P = 0.70) and all α-synucleinopathies in multivariable analyses. We did not identify any associations after stratifying for type of α-synucleinopathy, sex, and age at clinical-motor onset. We analyzed sepsis separately with similar results. CONCLUSION: We did not observe any associations between infections leading to hospitalization or sepsis and development of any α-synucleinopathies.
BACKGROUND: Several studies have proposed a role for infections to induce an inflammatory response triggering Parkinson's disease. This remains controversial and the influence of severe infections on other α-synucleinopathies (Dementia with Lewy Bodies, Parkinson's disease dementia, and Multiple System Atrophy) has not been adequately investigated. OBJECTIVES: To assess the association between hospitalization-required infections or sepsis and risk of clinically diagnosed α-synucleinopathies. METHODS: Using the medical records-linkage system (Rochester Epidemiology Project), we identified all α-synucleinopathy cases of in Olmsted County (1991-2010). Cases were matched by symptom-onset age and sex to controls. We reviewed complete medical records to detect hospital-required infections or sepsis preceding clinical-motor onset of α-synucleinopathies. We used conditional logistic regression to calculate the odds ratio of all α-synucleinopathies, adjusting for medications, coffee, and smoking. RESULTS: There was no association between infection-related hospitalization (odds ratio: 1.05; 95% confidence interval: 0.78-1.40; P = 0.76) or sepsis (odds ratio: 0.86; 95% confidence interval: 0.40-1.85; P = 0.70) and all α-synucleinopathies in multivariable analyses. We did not identify any associations after stratifying for type of α-synucleinopathy, sex, and age at clinical-motor onset. We analyzed sepsis separately with similar results. CONCLUSION: We did not observe any associations between infections leading to hospitalization or sepsis and development of any α-synucleinopathies.
Authors: Heiko Braak; Kelly Del Tredici; Udo Rüb; Rob A I de Vos; Ernst N H Jansen Steur; Eva Braak Journal: Neurobiol Aging Date: 2003 Mar-Apr Impact factor: 4.673
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Authors: Rodolfo Savica; Brandon R Grossardt; James H Bower; J Eric Ahlskog; Walter A Rocca Journal: JAMA Neurol Date: 2016-08-01 Impact factor: 18.302
Authors: Rodolfo Savica; Brandon R Grossardt; James H Bower; Bradley F Boeve; J Eric Ahlskog; Walter A Rocca Journal: JAMA Neurol Date: 2013-11 Impact factor: 18.302