Cited by 45Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsLipoproteins and Cardiovascular Health

Association between Serum Concentrations of Apolipoprotein A-I (ApoA-I) and Alzheimer’s Disease: Systematic Review and Meta-Analysis

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Zuin, Marco, Cervellati, Carlo, Trentini, Alessandro, Passaro, Angelina, Rosta, Valentina, Zimetti, Francesca, Zuliani, Giovanni·2021·Diagnostics

Abstract

Background: A wealth of experimental and epidemiological evidence suggest that Apolipoprotein A-I (ApoA-I), the main protein constituent of high-density lipoprotein (HDL), may protect against Alzheimer disease (AD). To investigate this potential role, we conducted a meta-analysis of the published studies on the relationship between serum ApoA-I and AD occurrence. Methods: We screened MEDLINE, EMBASE, Web of Science, and Scopus, for cross-sectional studies published from inception to 1 March 2021, comparing the ApoA-I serum levels between patients with AD and cognitively normal controls. Results: From an initial screening of 245 articles, 5 studies, including 397 AD patients (mean age 75.0 years, 234 females) and 367 controls (mean age 69.2 years, 182 females), met the inclusion criteria. Compared to healthy controls, AD subjects had a lower ApoA-I serum level. The pooled weighted mean difference from a random-effects model was −0.31 g/L (p < 0.0001) (95% Confidence Interval: [−0.62–0.01], with high heterogeneity (I2 = 100%). The Egger’s test confirmed an absence of publication bias (t = 0.62, p = 0.576). Conclusions: Our study showed that AD patients present lower serum levels of ApoA-I compared to cognitively normal individuals. Further studies on large population samples are required to support this finding.

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Authors
Zuin, M., Cervellati, C., Trentini, A., Passaro, A., Rosta, V., Zimetti, F., & Zuliani, G.
Affiliations
  • University of Ferrara (IT)
  • University of Parma (IT)
Corresponding author
Cervellati, Carlo
Venue
Diagnostics
Publisher
MDPI AG
Published
2021-05-28
Volume
11
Issue
6
Pages
984
ISSN
2075-4418 (ISSN-L)
OpenAlex
W3165471927
Cited by
45
References
53
Citations by year
2026: 6 · 2025: 9 · 2024: 12 · 2023: 5 · 2022: 10 · 2021: 3
FWCI
1.34
Type
journal article
Language
en
Open access
Locations
  • Diagnostics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Institutional Research Information System University of Ferrara (University of Ferrara) (submittedVersion, cc-by)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
apolipoprotein A-I, Alzheimer's disease, serum biomarkers, high-density lipoprotein, cognitive impairment, neuroprotection

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