Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis
Yunxia Jiang,1,* Tao He,2,* Wenshuai Deng,2 Peng Sun2 1Nursing College of Qingdao University, Qingdao University, 2Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, China *These authors contributed equally to this work Abstract: A number of published case–c...
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Dove Medical Press
2017
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oai:doaj.org-article:9bb07799d03f4606bf47fb5e5a78bc322021-12-02T03:50:19ZAssociation between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis1178-1998https://doaj.org/article/9bb07799d03f4606bf47fb5e5a78bc322017-11-01T00:00:00Zhttps://www.dovepress.com/association-between-apolipoprotein-e-gene-polymorphism-and-mild-cognit-peer-reviewed-article-CIAhttps://doaj.org/toc/1178-1998Yunxia Jiang,1,* Tao He,2,* Wenshuai Deng,2 Peng Sun2 1Nursing College of Qingdao University, Qingdao University, 2Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, China *These authors contributed equally to this work Abstract: A number of published case–control studies reported that the apolipoprotein E (ApoE) gene polymorphism was associated with the mild cognitive impairment (MCI). However, previous reports still remain conflicting. To estimate the association between ApoE polymorphism and MCI susceptibility, we searched the electronic databases including PubMed, Wanfang, CNKI (China National Knowledge Infrastructure), VIP, and EMBASE to retrieve all available studies. A total of 18 studies with 2,004 cases and 3,705 controls were included in this meta-analysis. The pooled analysis based on selected studies showed that statistically significant risk association was found between ApoE gene polymorphism and MCI in overall population (ε4 vs ε3: odds ratio [OR] =2.38, 95% confidence interval [CI]: 2.11–2.68; ε4/ε4 vs ε3/ε3: OR =4.45, 95% CI: 3.06–6.48; ε2/ε4 vs ε3/ε3: OR =2.57, 95% CI: 1.77–3.73; ε3/ε4 vs ε3/ε3: OR =2.31, 95% CI: 1.99–2.69). However, no significant association was detected in two genetic models: ε2 versus ε3 (OR =0.90, 95% CI: 0.77–1.05) and ε2/ε2 versus ε3/ε3 (OR =0.91, 95% CI: 0.50–1.65). Furthermore, ApoE ε2/ε3 genotype provided a slight protection for MCI in overall population (ε2/ε3 vs ε3/ε3: OR =0.80, 95% CI: 0.66–0.97). In the stratified analysis based on ethnicity, similar results were also observed in Chinese population (significant risk: ε4 vs ε3: OR =2.52, 95% CI: 2.19–2.90; ε4/ε4 vs ε3/ε3: OR =5.45, 95% CI: 3.41–8.70; ε2/ε4 vs ε3/ε3: OR =2.59, 95% CI: 1.74–3.86; ε3/ε4 vs ε3/ε3: OR =2.34, 95% CI: 1.97–2.79; slight protection: ε2/ε3 vs ε3/ε3: OR =0.79, 95% CI: 0.64–0.98; no association: ε2 vs ε3: OR =0.92, 95% CI: 0.78–1.09; and ε2/ε2 vs ε3/ε3: OR =1.04, 95% CI: 0.55–1.99). In summary, this meta-analysis of 5,709 subjects suggested that ApoE ε4 allele was associated with an increased risk of MCI. In addition, ApoE ε2/ε3 genotype provided a slight protection for MCI. Keywords: mild cognitive impairment, apolipoprotein E, polymorphism, meta-analysisJiang YHe TDeng WSun PDove Medical PressarticleMild cognitive impairmentApolipoprotein EPolymorphismMeta-analysisGeriatricsRC952-954.6ENClinical Interventions in Aging, Vol Volume 12, Pp 1941-1949 (2017) |
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Mild cognitive impairment Apolipoprotein E Polymorphism Meta-analysis Geriatrics RC952-954.6 |
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Mild cognitive impairment Apolipoprotein E Polymorphism Meta-analysis Geriatrics RC952-954.6 Jiang Y He T Deng W Sun P Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis |
| description |
Yunxia Jiang,1,* Tao He,2,* Wenshuai Deng,2 Peng Sun2 1Nursing College of Qingdao University, Qingdao University, 2Department of Neurosurgery, Affiliated Hospital of Qingdao University, Qingdao, China *These authors contributed equally to this work Abstract: A number of published case–control studies reported that the apolipoprotein E (ApoE) gene polymorphism was associated with the mild cognitive impairment (MCI). However, previous reports still remain conflicting. To estimate the association between ApoE polymorphism and MCI susceptibility, we searched the electronic databases including PubMed, Wanfang, CNKI (China National Knowledge Infrastructure), VIP, and EMBASE to retrieve all available studies. A total of 18 studies with 2,004 cases and 3,705 controls were included in this meta-analysis. The pooled analysis based on selected studies showed that statistically significant risk association was found between ApoE gene polymorphism and MCI in overall population (ε4 vs ε3: odds ratio [OR] =2.38, 95% confidence interval [CI]: 2.11–2.68; ε4/ε4 vs ε3/ε3: OR =4.45, 95% CI: 3.06–6.48; ε2/ε4 vs ε3/ε3: OR =2.57, 95% CI: 1.77–3.73; ε3/ε4 vs ε3/ε3: OR =2.31, 95% CI: 1.99–2.69). However, no significant association was detected in two genetic models: ε2 versus ε3 (OR =0.90, 95% CI: 0.77–1.05) and ε2/ε2 versus ε3/ε3 (OR =0.91, 95% CI: 0.50–1.65). Furthermore, ApoE ε2/ε3 genotype provided a slight protection for MCI in overall population (ε2/ε3 vs ε3/ε3: OR =0.80, 95% CI: 0.66–0.97). In the stratified analysis based on ethnicity, similar results were also observed in Chinese population (significant risk: ε4 vs ε3: OR =2.52, 95% CI: 2.19–2.90; ε4/ε4 vs ε3/ε3: OR =5.45, 95% CI: 3.41–8.70; ε2/ε4 vs ε3/ε3: OR =2.59, 95% CI: 1.74–3.86; ε3/ε4 vs ε3/ε3: OR =2.34, 95% CI: 1.97–2.79; slight protection: ε2/ε3 vs ε3/ε3: OR =0.79, 95% CI: 0.64–0.98; no association: ε2 vs ε3: OR =0.92, 95% CI: 0.78–1.09; and ε2/ε2 vs ε3/ε3: OR =1.04, 95% CI: 0.55–1.99). In summary, this meta-analysis of 5,709 subjects suggested that ApoE ε4 allele was associated with an increased risk of MCI. In addition, ApoE ε2/ε3 genotype provided a slight protection for MCI. Keywords: mild cognitive impairment, apolipoprotein E, polymorphism, meta-analysis |
| format |
article |
| author |
Jiang Y He T Deng W Sun P |
| author_facet |
Jiang Y He T Deng W Sun P |
| author_sort |
Jiang Y |
| title |
Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis |
| title_short |
Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis |
| title_full |
Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis |
| title_fullStr |
Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis |
| title_full_unstemmed |
Association between apolipoprotein E gene polymorphism and mild cognitive impairment: a meta-analysis |
| title_sort |
association between apolipoprotein e gene polymorphism and mild cognitive impairment: a meta-analysis |
| publisher |
Dove Medical Press |
| publishDate |
2017 |
| url |
https://doaj.org/article/9bb07799d03f4606bf47fb5e5a78bc32 |
| work_keys_str_mv |
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