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March 22, 2010

Anti-inflammatory drugs and risk of Parkinson disease
A meta-analysis

March 23, 2010 issue
74 (12) 995-1002

Abstract

Background/Objective: Anti-inflammatory drugs may prevent Parkinson disease (PD) by inhibiting a putative underlying neuroinflammatory process. We tested the hypothesis that anti-inflammatory drugs reduce PD incidence and that there are differential effects by type of anti-inflammatory, duration of use, or intensity of use.
Methods: MEDLINE and EMBASE were searched for studies that reported risk of PD associated with anti-inflammatory medications. Random-effects meta-analyses were used to pool results across studies for each type of anti-inflammatory drug. Stratified meta-analyses were used to assess duration- and intensity-response.
Results: Seven studies were identified that met the inclusion criteria, all of which reported associations between nonaspirin nonsteroidal anti-inflammatory drugs (NSAIDs) and PD, 6 of which reported on aspirin, and 2 of which reported on acetaminophen. Overall, a 15% reduction in PD incidence was observed among users of nonaspirin NSAIDS (relative risk [RR] 0.85, 95% confidence interval [CI] 0.77–0.94), with a similar effect observed for ibuprofen use. The protective effect of nonaspirin NSAIDs was more pronounced among regular users (RR 0.71, 95% CI 0.58–0.89) and long-term users (RR 0.79, 95% CI 0.59–1.07). No protective effect was observed for aspirin (RR 1.08, 95% CI 0.92–1.27) or acetaminophen (RR 1.06, 95% CI 0.87–1.30). Sensitivity analyses found results to be robust.
Conclusions: There may be a protective effect of nonaspirin nonsteroidal anti-inflammatory drug use on risk of Parkinson disease (PD) consistent with a possible neuroinflammatory pathway in PD pathogenesis.

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Information & Authors

Information

Published In

Neurology®
Volume 74Number 12March 23, 2010
Pages: 995-1002
PubMed: 20308684

Publication History

Published online: March 22, 2010
Published in print: March 23, 2010

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Notes

Authors

Affiliations & Disclosures

Joshua J. Gagne, PharmD, MS
From the Department of Epidemiology (J.J.G., M.C.P.), Harvard School of Public Health; Division of Pharmacoepidemiology and Pharmacoeconomics (J.J.G.), Brigham and Women's Hospital and Harvard Medical School; and Department of Environmental Health (M.C.P.), Harvard School of Public Health, Boston, MA.
Melinda C. Power, BA
From the Department of Epidemiology (J.J.G., M.C.P.), Harvard School of Public Health; Division of Pharmacoepidemiology and Pharmacoeconomics (J.J.G.), Brigham and Women's Hospital and Harvard Medical School; and Department of Environmental Health (M.C.P.), Harvard School of Public Health, Boston, MA.

Notes

Address correspondence and reprint requests to Dr. Joshua J. Gagne, 1620 Tremont St., Suite 3030, Boston, MA 02120 [email protected]

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