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Appetitive Associative Olfactory Learning in Drosophila Larvae
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Association of

Wei Chen1, Xiaohui Zhou1, Yali Duan1

  • 1Department of Internal Medicine for Cadres, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang 830000, P.R. China.

Experimental and Therapeutic Medicine
|September 15, 2018
PubMed
Summary
This summary is machine-generated.

This study investigated Alzheimer's disease (AD) genetic variants and gene promoter methylation in the Xinjiang Chinese population. DLST hypomethylation was linked to AD in females, and OGG1 methylation may interact with APOE ε4 genotype.

Keywords:
Alzheimer's diseaseDLSTDNA methylationOGG1single nucleotide polymorphism

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Area of Science:

  • Neuroscience
  • Genetics
  • Epigenetics

Background:

  • Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by cognitive decline.
  • Previous research has identified several genes associated with AD risk.
  • The Xinjiang Chinese population's genetic and epigenetic factors in AD remain underexplored.

Purpose of the Study:

  • To validate associations of five AD-related genetic variants in the Xinjiang Chinese population.
  • To investigate the role of OGG1 and DLST gene promoter methylation in AD risk.
  • To explore potential interactions between genetic variants and epigenetic modifications in AD pathogenesis.

Main Methods:

  • Genotyping of five AD-associated single nucleotide polymorphisms (SNPs) using Sanger sequencing.
  • Quantitative methylation-specific PCR to assess OGG1 and DLST promoter methylation.
  • Recruitment of 17 AD cases and 34 controls from Xinjiang, China.

Main Results:

  • No significant association was found for the five genetic polymorphisms with AD in this cohort.
  • DLST methylation levels were significantly decreased in AD patients, especially females (P=0.027).
  • OGG1 methylation levels were significantly increased in non-APOE ε4 carriers compared to APOE ε4 carriers (P=0.027).

Conclusions:

  • DLST hypomethylation is significantly associated with Alzheimer's disease in female patients.
  • OGG1 promoter methylation may interact with the APOE ε4 genotype, suggesting a complex interplay in AD.
  • This study highlights the potential role of epigenetic modifications in AD pathogenesis within the studied population.