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Genetic variants of ANRIL and coronary artery disease: Insights from a Turkish study population
Aybike Sena Ozuynuk-Ertugrul1, Cemre Buse Kirsan1, Aycan Fahri Erkan2
1Istanbul University, Aziz Sancar Institute of Experimental Medicine, Department of Genetics, Istanbul, Turkey; Istanbul University Institute of Graduate Studies in Health Sciences, Istanbul, Turkey.
Insights
Genetic variations in ANRIL, a long non-coding RNA, are linked to coronary artery disease (CAD) and its risk factors like hypertension and type 2 diabetes mellitus (T2DM) in Turkish individuals. This study highlights ANRIL polymorphisms as potential biomarkers for CAD susceptibility and severity.
Area of Science:
- Genetics
- Molecular Biology
- Cardiovascular Disease Research
Background:
- Coronary artery disease (CAD) is a major global health concern, with long non-coding RNAs (lncRNAs) like ANRIL implicated in its development.
- Understanding the genetic basis of CAD, particularly the role of specific lncRNA polymorphisms, is crucial for risk assessment and targeted therapies.
Purpose of the Study:
- To investigate the association between specific ANRIL gene polymorphisms (rs1333049, rs564398, rs10757274) and the presence and severity of coronary artery disease (CAD).
- To explore the relationship between these ANRIL polymorphisms and common CAD risk factors, including hypertension and type 2 diabetes mellitus (T2DM), in a Turkish population.
Main Methods:
- Genotyping of ANRIL polymorphisms rs1333049, rs564398, and rs10757274 was performed using quantitative reverse transcription polymerase chain reaction (qRT-PCR).
- The study involved 1285 participants: 736 with diagnosed CAD and 549 healthy controls from a Turkish cohort.
Main Results:
- Specific ANRIL polymorphisms (rs1333049 G allele, rs10757274 G allele) were associated with increased CAD severity markers (Gensini score, SYNTAX score) and lipid levels in certain subgroups.
- The rs564398 CC genotype showed increased susceptibility to CAD and severe CAD in females, while its G and T alleles were more prevalent in hypertensive males.
- Carriage of the rs564398 C allele and rs1333049 C allele was associated with a reduced risk of T2DM and, for rs1333049, also with a reduced risk of CAD combined with T2DM.
Conclusions:
- Selected ANRIL polymorphisms are significantly associated with CAD presence, severity, and associated risk factors such as T2DM and hypertension in the Turkish population.
- These findings, from the largest study of its kind in Turkish individuals, support the role of ANRIL variants in cardiovascular disease pathogenesis across different ethnicities.
Background And Aim:
Coronary artery disease (CAD) remains a leading cause of morbidity and mortality globally despite advancements in treatment. Long non-coding RNAs (lncRNAs) play crucial roles in the atherosclerotic process, with ANRIL being one such lncRNA. This study explored the association between ANRIL polymorphisms (rs1333049:C > G, rs564398:T > C, and rs10757274:A > G) and CAD along with CAD risk factors in a Turkish patient group.
Methods:
The study included 1285 participants, consisting of 736 patients diagnosed with CAD (mean age = 63.3 ± 10.5 years) and 549 non-CAD controls (mean age = 57.52 ± 11.01 years). Genotypes for rs1333049, rs564398, and rs10757274 were determined using qRT-PCR.
Results:
G allele carriage of both rs1333049 and rs10757274 polymorphisms were associated with higher Gensini score, SYNTAX score, total cholesterol, and triglyceride levels in female CAD patients and non-CAD males. Females with rs564398 CC genotype were more susceptible to CAD (p = 0.02) and severe CAD (p = 0.05). Moreover, the G and T alleles of rs10757274 and rs564398 were more prevalent among hypertensive males. Also, carrying the C allele for rs564398 was associated with a decreased risk for type 2 diabetes mellitus (T2DM) (p = 0.02). Besides, carriers of the rs1333049 C allele for decreased risk for T2DM (p = 0.03) and CAD complexed with T2DM (p = 0.04) in logistic regression analyses.
Conclusions:
In conclusion, selected ANRIL polymorphisms were associated with CAD presence/severity and CAD risk factors, T2DM, and hypertension. Notably, this study, the largest sample-sized study examining the effects of selected polymorphisms on CAD and its risk factors among Turkish individuals, supported the findings of previous studies conducted on different ethnicities.
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