The rs10757278 polymorphism of the 9p21.3 locus is associated with premature coronary artery disease in Polish patients

Association of ANRIL Gene Single-Nucleotide Polymorphisms With Allergic Rhinitis in Kurdish Population From Kermanshah, Iran

Background

Allergic rhinitis (AR) is the most common inflammatory disorder of the upper airway caused by aberrant immune responses to allergens in genetically predisposed individuals. Recently, the long noncoding RNA (lncRNA) antisense noncoding RNA in the INK4 locus (ANRIL) has been identified as a novel genetic factor associated with increased AR risk.

Objectives

This study aimed to evaluate the potential correlation of ANRIL gene single nucleotide polymorphisms (SNPs) with AR risk in the Kurdish population of Kermanshah, Iran.

Methods

In this case-control study, 130 AR patients and 130 healthy controls were recruited to genotype for two SNPs of the ANRIL gene (rs1333048 and rs10757278) using the Tetra-primer amplification refractory mutation system polymerase chain reaction (T-ARMS-PCR) method.

Results

Our results showed no significant difference for the alleles and genotypes frequency distribution of lncRNA ANRIL SNPs (rs1333048 and rs10757278) between AR patients and healthy controls (p > 0.05). Additionally, the dominant, additive and recessive genetic models of both SNPs were not associated with altered susceptibility to AR risk (p > 0.05).

Conclusion

The results demonstrated that the ANRIL gene rs1333048 and rs10757278 polymorphisms might not be associated with susceptibility to AR in the Kurdish population of Kermanshah, Iran.

Polymorphic Variants of AGT, ABCA1, and CYBA Genes Influence the Survival of Patients with Coronary Artery Disease: A Prospective Cohort Study

Genetic factors can influence the risk of coronary artery disease (CAD) and the survival of patients. Our previous research led to the identification of genetic variants predisposing to CAD in the Polish population. Since many of them affect the clinical phenotype of the disease, the aim of this study was searching for genetic factors potentially influencing survival in patients with CAD. The study included 276 patients hospitalized due to coronary artery disease. The database of medical history and genotypic results of 29 polymorphisms were used. The endpoint was defined as death from cardiovascular causes. Survival was defined as the period from angiographic confirmation of CAD to death from cardiovascular causes. Three of all the analyzed genes were associated with survival. In the case of the AGT (rs699) and ABCA1 (rs2230806) genes polymorphisms, the risk of death was higher in GG homozygotes compared to the A allele carriers in the 10-year period. In the case of the CYBA (rs72811418) gene polymorphism, the effect on mortality was shown in both 5- and 10-year periods. The TA heterozygotes were predisposed to a higher risk of death than the TT homozygotes. Concluding, the AGT, ABCA1, and CYBA genes polymorphisms influence the risk of death in patients with CAD.

Genetic Association of rs10757278 on Chromosome 9p21 and Coronary Artery Disease in a Saudi Population

Purpose

Coronary artery disease (CAD) is one of the most important leading causes of morbidity and mortality worldwide. Few studies have been carried out in the Saudi population regarding the association of rs10757278 polymorphism with CAD. This study aimed to investigate the association of the rs10757278 polymorphism with CAD in Saudi population.

Materials and Methods

In this case-control study, we recruited 437 patients with CAD and 251 cross-matched healthy controls and performed polymorphism genotyping for rs10757278 using a polymerase chain reaction followed by a restriction fragment length polymorphism analysis.

Results

The G allele (OR-1.44; 95% CI: 1.15–1.80; p=0.001), as GG (OR-2.13; 95% CI: 1.35–3.36; p=0.0009), in the dominant (OR-1.47; 95% CI: 1.03–2.10; p=0.03) and recessive mode (OR-1.84; 95% CI: 1.26–2.70; p=0.001) of inheritance showed a high-risk association. A disease stratified risk analysis was conducted and comparisons were made using an ANOVA analysis. Diabetes showed a risk association (p=0.001). However, a regression analysis confirmed that for the CAD cases, there was an association between the GG genotype and diabetes (p=0.005).

Conclusion

The results of this study suggest that the polymorphism rs10757278 is related to a high risk of CAD in a Saudi population.

Association between Coronary Artery Disease and rs10757278 and rs1333049 Polymorphisms in 9p21 Locus in Iran

Background

Coronary arteries disease (CAD) has been recognized as one of the most common causes of death worldwide, with an estimated seven million deaths annually.

Methods

Two hundred blood samples from Iranian CAD patients and normal healthy controls were collected. CAD and the 9p21 locus variants rs1333049 and rs10757278 were analyzed for potential associations.

Results

No significant differences in rs10757278 and rs1333049 polymorphisms were found between patients and controls, but a significant relationship was found between rs10757278 and rs1333049 in CAD patients at the genotype level (p= 0.0323). At the haplotype level and on the basis of diplotype analysis, a significant relationship was found between patients and controls (OR= 5.16, p= 0.047, 95% CI: 1.02-26.0). In CAD patients, rs10757278 and rs1333049 were associated at locus 9p21.

Conclusion

The inconsistency between the results of this and other studies on different CAD populations may be due to high population, different ethnicities, low prevalence of some alleles in populations, and interactions of different genes.

Association of ANRIL gene polymorphisms with prostate cancer and benign prostatic hyperplasia in an Iranian population

AIM

Prostate cancer and benign prostate hyperplasia (BPH) are heterogeneous disorders with high prevalence among men. The antisense noncoding RNA in the INK4 locus codes for a long noncoding RNA whose participation in cancer has been elucidated.

METHOD

We analyzed rs1333045, rs4977574, rs1333048 and rs10757278 genotypes from this locus in 125 prostate cancer patients, 125 BPH patients as well as 220 normal age-matched subjects by means of tetra-primer amplification refractory mutation system PCR method.

RESULTS

The rs1333045 showed no significant difference in allele or genotype frequencies between three groups. However, the other three single nucleotide polymorphisms have been shown to be associated with BPH and prostate cancer risk.

CONCLUSION

Antisense noncoding RNA in the INK4 locus possibly participates in the pathogenesis of these disorders.

"Desert" gene (Chr9p21) variants as novel markers for coronary artery disease

OBJECTIVE

Previous reports have denoted to the possible link of Chr9p21 locus to the incidence of coronary artery disease (CAD). The entire core of chr9p21 is covered by "ANRIL" (Antisense noncoding RNA in INK4 Locus) and lies in a region that is free from any coding proteins; therefore, it is called the desert gene. The major objectives of this study were to examine the association of rs10757278 and rs2383206 SNPs on Chr9p21 with the incidence of CAD in the presence and absence of type 2 diabetes (T2D) in Egyptians and to correlate these genetic variants with several disease biomarkers (TC, CRP, and HbA1c).

METHODS

The study subjects consisted of 150 subjects; 50 healthy controls and 100 patients that were divided into two groups; CAD patients and CAD T2D patients. The genotyping of SNPs was performed using qPCR.

RESULTS

Genotype distribution for both SNPs were found to be significantly different (p=0.0009 for rs10757278 and p=0.001 for rs2383206) between patients and controls. The allele frequency was also different for rs10757278.

CONCLUSION

The current study showed that rs10757278/rs2383206-G allele increases the risk for CAD in Egyptians. Moreover, AA variant appeared as a protective genotype. However, SNPs did not noticeably contribute in the elevation of TC, hs-CRP, and HbA1c in non-diabetic and diabetic CAD patients.