PMID- 22248366 OWN - NLM STAT- MEDLINE DCOM- 20120914 LR - 20211021 IS - 1468-1331 (Electronic) IS - 1351-5101 (Print) IS - 1351-5101 (Linking) VI - 19 IP - 6 DP - 2012 Jun TI - Treatment for Helicobacter pylori infection and risk of Parkinson's disease in Denmark. PG - 864-9 LID - 10.1111/j.1468-1331.2011.03643.x [doi] AB - BACKGROUND AND PURPOSE: It has been speculated that gastrointestinal infection with Helicobacter pylori (HP) contributes to the development of Parkinson's disease (PD). We used nationwide Danish registers to investigate this hypothesis. METHODS: We identified 4484 patients with a first time PD diagnosis between 2001 and 2008 from the Danish National Patient Register (DNPR) and 22, 416 population controls from the Danish Civil Registration System (CRS). Information on drug use was obtained from the National Prescription Registry (NPR). We used logistic regression to compute odds ratios (OR) for the association between treatment for HP and risk of PD. RESULTS: Prescriptions for HP-eradication drugs and proton pump inhibitors (PPI) 5 or more years prior to the diagnosis of PD were associated with a 45% and 23% increase in PD risk, respectively. Hospitalizations and outpatient visits for gastritis and peptic/duodenal ulcers, however, were not associated with PD. CONCLUSIONS: Our population-based study suggests that chronic HP infections and/or gastritis contribute to PD or that these are PD-related pathologies that precede motor symptoms. CI - (c) 2012 The Author(s). European Journal of Neurology (c) 2012 EFNS. FAU - Nielsen, H H AU - Nielsen HH AD - Department of Neurology, Odense University Hospital, Odense, Denmark. hhnielsen@health.sdu.dk FAU - Qiu, J AU - Qiu J FAU - Friis, S AU - Friis S FAU - Wermuth, L AU - Wermuth L FAU - Ritz, B AU - Ritz B LA - eng GR - P50 NS038367/NS/NINDS NIH HHS/United States GR - R01 ES013717/ES/NIEHS NIH HHS/United States GR - R01 ES013717-01A1/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20120117 PL - England TA - Eur J Neurol JT - European journal of neurology JID - 9506311 RN - 0 (Anti-Bacterial Agents) RN - 0 (Proton Pump Inhibitors) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Anti-Bacterial Agents/*therapeutic use MH - Denmark/epidemiology MH - Female MH - Helicobacter Infections/diagnosis/*drug therapy/*epidemiology MH - Humans MH - Logistic Models MH - Male MH - Middle Aged MH - Parkinson Disease/*epidemiology/*etiology MH - Proton Pump Inhibitors/therapeutic use MH - Retrospective Studies MH - Risk PMC - PMC3330170 MID - NIHMS343768 EDAT- 2012/01/18 06:00 MHDA- 2012/09/15 06:00 PMCR- 2013/06/01 CRDT- 2012/01/18 06:00 PHST- 2012/01/18 06:00 [entrez] PHST- 2012/01/18 06:00 [pubmed] PHST- 2012/09/15 06:00 [medline] PHST- 2013/06/01 00:00 [pmc-release] AID - 10.1111/j.1468-1331.2011.03643.x [doi] PST - ppublish SO - Eur J Neurol. 2012 Jun;19(6):864-9. doi: 10.1111/j.1468-1331.2011.03643.x. Epub 2012 Jan 17.