國家衛生研究院 NHRI:Item 3990099045/11925
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/11925


    Title: A post-hoc study of D-Amino acid Oxidase in blood as an indicator of Post-stroke Dementia
    Authors: Chen, YC;Chou, WH;Tsou, HH;Fang, CP;Liu, TH;Tsao, HH;Hsu, WC;Weng, YC;Wang, Y;Liu, YL
    Contributors: Center for Neuropsychiatric Research;Institute of Population Health Sciences
    Abstract: Stroke is an important risk factor for dementia. Epidemiological studies have indicated a high incidence of dementia in stroke patients. There is currently no effective biomarker for the diagnosis of post-stroke dementia (PSD). D-amino acid oxidase (DAO) is a flavin-dependent enzyme widely distributed in the central nervous system. DAO oxidizes D-amino acids, a process which generates neurotoxic hydrogen peroxide and leads to neurodegeneration. This study aimed to examine post-stroke plasma DAO levels as a biomarker for PSD. In total, 53 patients with PSD, 20 post-stroke patients without dementia (PSNoD), and 71 age- and gender-matched normal controls were recruited. Cognitive function was evaluated at more than 30 days post-stroke. Plasma DAO was measured using the enzyme-linked immunosorbent assay. White matter hyperintensity (WMH), a neuroimaging biomarker of cerebral small vessel diseases, was determined by magnetic resonance imaging. We found that plasma DAO levels were independently higher in PSD subjects than in PSNoD subjects or the controls and were correlated with the WMH load in stroke patients. Using an area under the curve (AUC)/receiver operating characteristic analysis, plasma DAO levels were significantly reliable for the diagnosis of PSD. The sensitivity and specificity of the optimal cut-off value of 321 ng/ml of plasma DAO for the diagnosis of PSD were 75 and 88.7%, respectively. In conclusion, our data support that plasma DAO levels were increased in PSD patients and correlated with brain WMH, independent of age, gender, hypertension, and renal function. Plasma DAO levels may therefore aid in PSD diagnosis.
    Date: 2019-04
    Relation: Frontiers in Neurology. 2019 Apr;10:Article number 402.
    Link to: http://dx.doi.org/10.3389/fneur.2019.00402
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1664-2295&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000466183100001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85067878329
    Appears in Collections:[Yu-Li Liu] Periodical Articles
    [Yun Wang ] Periodical Articles
    [Wen-Hai Chou] Periodical Articles
    [Hsiao-Hui Sophie Tsou] Periodical Articles

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