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Blood biomarker assays are preferential diagnostic tools for widespread clinical use with the advantages of being less invasive, cost effective, and easily accessible, and they have shown good performance in research cohorts. However, in community\u2010based populations with maximum heterogeneity, great challenges are still faced in diagnosing AD based on blood biomarkers in terms of accuracy and robustness. Here, we analyze these challenges, including the confounding impact of systemic and biological factors, small changes in blood biomarkers, and difficulty in detecting early changes. Furthermore, we provide perspectives on several potential strategies to overcome these challenges for blood biomarkers to bridge the gap from research to clinical practice.<\/jats:p>","DOI":"10.1002\/alz.13116","type":"journal-article","created":{"date-parts":[[2023,5,23]],"date-time":"2023-05-23T03:05:41Z","timestamp":1684811141000},"page":"4226-4236","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Translating blood biomarkers into clinical practice for Alzheimer's disease: Challenges and perspectives"],"prefix":"10.1002","volume":"19","author":[{"given":"Jun","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Neurology and Centre for Clinical Neuroscience Daping Hospital, Third Military Medical University  Chongqing China"},{"name":"Chongqing Key Laboratory of Ageing and Brain Diseases  Chongqing 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