Genetic association study between rs2234253 (p.T96K) variant of TREM2 and Alzheimer's disease in a Tunisian population.

IF 1.7 4区 医学 Q3 CLINICAL NEUROLOGY
Neurological Research Pub Date : 2025-04-01 Epub Date: 2025-03-05 DOI:10.1080/01616412.2025.2472841
Afef Achouri-Rassas, Saloua Fray, Zakaria Said, Samia Ben Sassi, Nadia Ben Ali, Ghada Baraket
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引用次数: 0

Abstract

Background: Alzheimer's disease (AD) is the leading cause of major neurodegenerative cognitive impairment. The risk of developing AD is influenced by a complex interaction of genetic predisposition and environmental factors. Among the genetic risk factors, the APOE ɛ4 allele is the most significant, while variants in the TREM2 (Triggering Receptor Expressed on Myeloid Cells 2) and ABCA7 (ATP-binding cassette transporter A7) genes have also been associated with an increased risk of AD.

Objective: This study aimed to investigate the association of APOE ɛ4, TREM2 gene variants (rs75932628 [p.R47H] and rs2234253 [p.T96K]), and ABCA7 gene variants (rs142076058 and rs115550680) with sporadic AD in the Tunisian population. Methods: A case-control study was conducted including 222 Tunisian patients diagnosed with sporadic AD and 99 cognitively healthy controls. Genotyping was performed to assess the presence and association of the selected genetic variants with AD. Statistical analyses were conducted to determine the significance of genetic associations.

Results: A significant association was found between the TREM2 rs2234253 (p.T96K) variant and AD, with the T allele identified as a risk factor in the Tunisian population. The APOE ɛ4 allele was also associated with an increased risk of developing AD. However, no significant association was observed for the ABCA7 gene variants or the TREM2 rs75932628 (p.R47H) variant in either the AD or control groups.

Conclusion: Our findings suggest that the TREM2 rs2234253 (p.T96K) variant is a significant genetic risk factor for late-onset AD (LOAD) in the Tunisian population. Further studies with larger cohorts are needed to validate these findings and explore potential gene-gene interactions contributing to AD risk.

突尼斯人群中TREM2 rs2234253 (p.T96K)变异与阿尔茨海默病的遗传关联研究
背景:阿尔茨海默病(AD)是主要神经退行性认知障碍的主要原因。患AD的风险受遗传易感性和环境因素复杂的相互作用影响。在遗传危险因素中,APOE / 4等位基因是最重要的,而TREM2(髓样细胞上表达的触发受体2)和ABCA7 (atp结合盒转运体A7)基因的变异也与AD风险增加有关。目的:探讨APOE / 4、TREM2基因变异(rs75932628)与乳腺癌的相关性。R47H和rs2234253 [p.T96K]),以及ABCA7基因变异(rs142076058和rs115550680)在突尼斯人群中与散发性AD相关。方法:对222例突尼斯散发性AD患者和99例认知健康对照进行病例对照研究。进行基因分型以评估所选遗传变异与AD的存在及其相关性。进行统计分析以确定遗传关联的显著性。结果:TREM2 rs2234253 (p.T96K)变异与AD之间存在显著关联,T等位基因被确定为突尼斯人群中的危险因素。apoe4等位基因也与阿尔茨海默病的发病风险增加有关。然而,在AD或对照组中,ABCA7基因变异或TREM2 rs75932628 (p.R47H)变异均未观察到显著相关性。结论:我们的研究结果表明,TREM2 rs2234253 (p.T96K)变异是突尼斯人群中迟发性AD (LOAD)的重要遗传危险因素。需要更大规模的进一步研究来验证这些发现,并探索可能导致AD风险的基因-基因相互作用。
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来源期刊
Neurological Research
Neurological Research 医学-临床神经学
CiteScore
3.60
自引率
0.00%
发文量
116
审稿时长
5.3 months
期刊介绍: Neurological Research is an international, peer-reviewed journal for reporting both basic and clinical research in the fields of neurosurgery, neurology, neuroengineering and neurosciences. It provides a medium for those who recognize the wider implications of their work and who wish to be informed of the relevant experience of others in related and more distant fields. The scope of the journal includes: •Stem cell applications •Molecular neuroscience •Neuropharmacology •Neuroradiology •Neurochemistry •Biomathematical models •Endovascular neurosurgery •Innovation in neurosurgery.
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