Plasma urate in REM sleep behavior disorder. Issue 8 (27th March 2013)

• Record Type: Journal Article
• Authors: Martín, Reinaldo Uribe‐San; Francke, Pablo Venegas; Illanes, Felipe López; Gazmuri, Alex Jones; Rivera, Julio Salazar; Ferńndez, Jaime Godoy; Martínez, Julia Santín; Juri, Carlos
• Is Part Of: Movement disorders. Volume 28:Issue 8(2013)
• Page Start: 1150
• Page End: 1151
• Publication Date: 2013-03-27
• Subjects: Movement disorders -- Periodicals; 610
• DOI: 10.1002/mds.25441
• Languages: English
• ISSNs: 0885-3185

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <sec id="mds25441-sec-0001" sec-type="section"> <title>Background</title> <p>Rapid eye movement (REM) sleep behavior disorder (RBD) is associated with a high risk of developing Parkinson's disease (PD). Higher urate levels are associated with a lower risk of PD. We conducted a study to evaluate plasma urate levels in patients with RBD and their role in the development of PD.</p> </sec> <sec id="mds25441-sec-0002" sec-type="section"> <title>Methods</title> <p>We evaluated plasma urate levels in a cohort of 24 patients with idiopathic RBD. Patients were divided into 2 groups according to the presence or absence of PD. Other known markers of the risk of developing PD, such as olfaction testing, and substantia nigra (SN) hyperechogenicity, were evaluated in the 2 groups.</p> </sec> <sec id="mds25441-sec-0003" sec-type="section"> <title>Results</title> <p>No differences were observed regarding age, years of evolution of the RBD, SN hyperechogenicity, or plasma urate levels between the 2 groups. In patients without PD, there was a positive correlation between years of evolution of RBD and the levels of uric acid (R<sup>2</sup> = 0.88). Patients without PD and those who had more than 5 years of RBD exhibited higher levels of uric acid than patients with PD (<italic>P</italic> = 0.02).</p> </sec> <sec id="mds25441-sec-0004" sec-type="section"> <title>Conclusions</title> <p>Higher levels of plasma urate were associated with a longer duration of RBD without converting to PD. Future prospective studies would be needed to confirm this finding. Disorder Society.© 2013 <italic>Movement</italic> Disorder Society</p> </sec> </abstract>