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Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies
Published on: May 6, 2022
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RUNX1T1 rs34269950 is associated with obesity and metabolic syndrome
Y Zhou1,2, B D Hambly3, D Simmons4,5
1Xiamen Cardiovascular Hospital, Xiamen University, 2999 Jinshan Road, Huli District, Xiamen 361016, China.
QJM : Monthly Journal of the Association of Physicians
|June 27, 2020
Summary
A specific RUNX1T1 gene variant (rs34269950) is linked to increased obesity risk and metabolic syndrome. This finding highlights the role of RNA methylation in abdominal obesity development.
Area of Science:
- Genetics and genomics
- Metabolic disease research
- Obesity studies
Background:
- Runt-related transcription factor 1 (RUNX1T1) isoforms influence adipogenesis.
- The fat mass and obesity-associated (FTO) gene mediates RUNX1T1's role.
- The association between RUNX1T1 single-nucleotide polymorphisms (SNPs) and obesity/metabolic issues in the general population is not well understood.
Purpose of the Study:
- To investigate the association between RUNX1T1 SNPs and obesity risk.
- To examine the link between RUNX1T1 SNPs and metabolic abnormalities.
- To explore the role of specific genetic variations in adipogenesis and obesity.
Main Methods:
- Genotyping of eight candidate RUNX1T1 SNPs with minor allele frequency ≥0.05 using Taqman assays.
- Analysis of samples from the Australian Crossroads study bio-bank.
- Focus on SNPs in coding and 3'untranslated regions of RUNX1T1.
Main Results:
- The SNP rs34269950, located in an FTO-recognized m6A modification site (RRACH motif), showed significant associations.
- The rs34269950 del/del genotype was linked to a 1.47-fold higher obesity risk compared to the AA genotype.
- This genotype also increased the risk of metabolic syndrome (OR=1.60) and larger waist circumference (OR=1.65).
Conclusions:
- RUNX1T1 rs34269950 is significantly associated with increased waist circumference.
- This suggests that SNPs within RRACH motifs may influence RNA N6-methyladenosine (m6A) modification.
- These modifications could play a role in the mechanistic pathways contributing to abdominal obesity.
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