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Pinhel MADS, Sado CL, Longo GDS, Gregorio ML, Amorim GS, Florim GMDS, Mazeti CM, Martins DP, Oliveira FDN, Nakazone MA, Tognola WA, Souza DRS. Nullity of GSTT1/GSTM1 related to pesticides is associated with Parkinson's disease. Arq Neuro-Psiquiatr 2013; 71:527-32. [DOI: 10.1590/0004-282x20130076] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 03/25/2013] [Indexed: 11/22/2022]
Abstract
Genetic and environmental factors affect the pathogenesis of Parkinson's disease (PD). Genetic variants of the enzyme glutathione S-transferases (GST) may be related to the disease. This study aimed to evaluate the influence of genetic variants of GST (GSTT1/GSTM1) and their association with the exposure to environmental toxins in PD patients. We studied 254 patients with PD and 169 controls. The GSTM1/GSTT1 variants were analyzed by polymerase chain reaction. We applied the Fisher's exact test and the χ2 test for statistical analysis (p<0.05). The present and absence for GSTT1 and GSTM1 were similar in patients and controls. The null for GSTT1 and GSTM1 (0/0) and exposure to pesticides prevailed in patients (18%) compared to controls (13%, p=0.014). This study suggests the association between PD and previous exposure to pesticides, whose effect may be enhanced in combination with null for GSTT1/GSTM1.
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