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Article type: Research Article
Authors: Rosa, Maria Inêsa; * | Perucchi, Josmarb | Medeiros, Lidia Rosic | Fernandes, Brunad | Fernandes dos Reis, Maria Eduardab | Silva, Bruno Rosae
Affiliations: [a] Laboratory of Epidemiology at University of Extremo Sul Catarinense, Criciúma, SC, Brazil | [b] Postgraduate Program in Health Sciences at University of Extremo Sul Catarinense, Criciúma, SC, Brazil | [c] Postgraduate Program in Medicine: Medical Sciences at Federal University of Rio Grande do Sul, Porto Alegre, Brazil | [d] Graduate Nutrition at University of Extremo Sul Catarinense, Criciúma, SC, Brazil | [e] Graduated in Medicine at University of Extremo Sul Catarinense, Criciúma, SC, Brazil
Correspondence: [*] Correspondence to: Maria Inês Rosa, Rua Cruz e Souza, 510, Bairro Pio Correa, CEP 88811-550, Criciúma-SC, Brazil. Tel.: +55 48 34339976; Fax: +55 48 34335766; E-mail: [email protected].
Abstract: Background:Alzheimer’s disease (AD) is the most common cause of dementia, accounting for 65–70% of all dementia cases. Objective:We performed a systematic review and meta-analysis to estimate the accuracy of cerebrospinal fluid Aβ1-42 for the diagnosis of AD. A comprehensive search of the Cochrane Library, MEDLINE, LILACS, Grey literature, and EMBASE was performed for papers published from January 1990 to August 2013. The following Medical Subject Headings (MeSH) terms were searched: “Alzheimer disease” or “AD” and “amyloid-β” or “Aβ1-42”. Methods:We included case-control and cross-sectional studies, prospective or retrospective, that evaluated Aβ1-42 levels in AD. Statistical analysis was performed using REVMAN 5.2, Meta Disc, and Stata 11.0. Results:A total of 804 citations were identified by the search strategy and 41 studies were included. Meta-analysis showed a sensitivity of 84.3% (95% CI: 85.6%–81%) and specificity of 79.4% (95% CI: 77.6%–81.1%). The diagnostic odds ratio was 28.9 (95% CI: 21.2–39.5). Conclusion:Our study demonstrated that Aβ1-42 can discriminate AD from controls with good sensitivity and specificity.
Keywords: Aβ1-42, Alzheimer's disease, meta-analyses, systematic review
DOI: 10.3233/JAD-132264
Journal: Journal of Alzheimer's Disease, vol. 40, no. 2, pp. 443-454, 2014
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