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Association of a protective paraoxonase 1 (PON1) polymorphism in Parkinson's disease
Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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2012 (Engelska)Ingår i: Neuroscience Letters, ISSN 0304-3940, E-ISSN 1872-7972, Vol. 522, nr 1, s. 30-5Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Pesticide exposure has been suggested to increase the risk to develop Parkinson's disease (PD). The arylesterase paraoxonase 1 (PON1) is mainly expressed in the liver and hydrolyzes organophosphates such as pesticides. The polymorphism Leu54Met (rs854560) in PON1, impairing enzyme activity and leading to decreased PON1 expression levels, has been reported to be associated with Parkinson's disease (PD). PON1 is part of a cluster on chromosome 7q21.3 together with PON2 and PON3. We investigated the occurrence of four additional polymorphisms in PON1 and two in PON2 in a Swedish PD case-control material. We found a significant association (p=0.007) with a PON1 promoter polymorphism, rs854571. The minor allele was more common among controls than PD cases which suggest a protective effect. This is strengthened by the fact that rs854571 is in strong linkage disequilibrium with another PON1 promoter polymorphism, rs854572, reported to increase PON1 gene expression. Our findings support the hypothesis that PON1 is involved in the etiology of PD and that higher PON1 levels are reducing the risk for PD.

Ort, förlag, år, upplaga, sidor
Elsevier, 2012. Vol. 522, nr 1, s. 30-5
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Medicin och hälsovetenskap
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URN: urn:nbn:se:liu:diva-80804DOI: 10.1016/j.neulet.2012.06.007ISI: 000307035700007PubMedID: 22704918OAI: oai:DiVA.org:liu-80804DiVA, id: diva2:548324
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funding agencies|Swedish Research Council||Magnus Bergvall Foundation||Swedish Parkinson Foundation||Swedish Brain Foundation||Swedish Brain Power||Ake Wiberg Foundation||Karolinska Institutet Funds||

Tillgänglig från: 2012-08-30 Skapad: 2012-08-30 Senast uppdaterad: 2018-01-12

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