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From the Departments of Neurology (Drs. Zabetian and Samii and D. Yearout), Medicine (Dr. Raskind), and Psychiatry and Behavioral Sciences (Dr. Raskind), University of Washington School of Medicine, Seattle; Geriatric (Dr. Zabetian and D. Yearout), Northwest Parkinsons Disease (Dr. Samii), and Mental Illness Research Education and Clinical Centers (Dr. Raskind), Veterans Affairs Puget Sound Health Care System, Seattle; Virginia Mason Medical Center (Dr. Roberts), Seattle; and Booth Gardner Parkinsons Care Center (Drs. Mosley, Leis, and Griffith), Evergreen Hospital Medical Center, Kirkland, WA.
address correspondence and reprint requests to Dr. Zabetian, Geriatric Research Education and Clinical Center S-182, VA Puget Sound Health Care System, 1660 South Columbian Way, Seattle, WA 98108; e-mail: zabetian{at}u.washington.edu
Referral-based studies indicate that a mutation (G2019S) in exon 41 of the LRRK2 gene might be a common cause of Parkinson disease (PD). The authors sequenced leucine-rich repeat kinase 2 (LRRK2) exons 31, 35, and 41 in 371 consecutively recruited patients with PD and found mutations in six (1.6%) subjects, including two heterozygous for new putative pathogenic variants (R1441H, IVS31 + 3A
G). These data confirm the important contribution of LRRK2 to PD susceptibility in a clinic-based population.
Editorial, see page 664
See also pages 696 and 738
This article was previously published in electronic format as an Expedited E-Pub on June 29, 2005, at www.neurology.org.
Supported by the Geriatric and Mental Illness Research Education and Clinical Centers, VA Puget Sound Health Care System, and grants from the National Institutes of Health (K08-NS44138) and Parkinsons Disease Foundation (C.P.Z.).
Received April 4, 2005. Accepted in final form May 23, 2005.
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