scholarly journals Single Nucleotide Polymorphisms inP2X7Gene Are Associated with Serum Immunoglobulin G Responses toMycobacterium tuberculosisin Tuberculosis Patients

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jiangdong Wu ◽  
Lijun Lu ◽  
Le Zhang ◽  
Yulei Ding ◽  
Fang Wu ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Immunoglobulin G ◽  
Serum Immunoglobulin ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Mutant Genotype ◽  
Pcr Rflp ◽  
Positive Rate

Objective. Our study investigated the association between single nucleotide polymorphisms (SNPs) in P2X7 gene and serum immunoglobulin G (IgG) responses to mycobacterium tuberculosis (MTB) in TB patients.Methods. A total of 103 TB patients were enrolled as case group and 87 healthy individuals at same geographical region as control group. The SNP detection of 1513A>C and -762T>C was performed using PCR-RFLP, and the levels of serum IgG responses to MTB in all subjects were determined.Results. AC and CC of 1513A>C and TC and CC of -762T>C had higher frequencies in case group than in control group. TB patients carrying TC and CC of -762T>C had higher positive rate of IgG responses to MTB than those carrying TT. Additionally, patients carrying TC and CC of -762T>C had more MTB in sputum than those carrying TT.Conclusion. P2X7 SNPs, 1513A>C and -762T>C, may be associated with the susceptibility to tuberculosis, and -762T>C SNP may contribute to the development of MTB. The mutant genotype of -762T>C (TC and CC) may lower human capability of phagocytosis to MTB, leading to an increased morbidity of TB.

scholarly journals Association of single nucleotide polymorphisms in CACNA 1A/CACNA 1C/CACNA 1H calcium channel genes with diabetic peripheral neuropathy in Chinese population

2018 ◽  
Vol 38 (3) ◽  
Author(s):  
Lin Sun ◽  
Jun Ma ◽  
Qian Mao ◽  
Yun-Long Yang ◽  
Lin-Lin Ma ◽  
...  
Keyword(s):  
Peripheral Neuropathy ◽  
Single Nucleotide Polymorphisms ◽  
Calcium Channel ◽  
Diabetic Peripheral Neuropathy ◽  
Chinese Population ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Pcr Rflp

The present study was conducted to explore the correlations between single nucleotide polymorphisms (SNPs) in the calcium channel CACNA 1A, CACNA 1C, and CACNA 1H genes and diabetic peripheral neuropathy (DPN) amongst the Chinese population. In total, 281 patients diagnosed with type 2 diabetes participated in the present study. These patients were divided into the case group, which was subdivided into the DPN (143 cases) and the non-DPN groups (138 cases). Subsequently, 180 healthy individuals that had undergone routine health examinations were also recruited and assigned to the control group. PCR-restriction fragment length polymorphism (PCR-RFLP) was used to detect the genotype and allele frequencies of CACNA 1A, CACNA 1C, and CACNA 1H genes; logistic regression analysis to investigate the association of gene polymorphisms with DNP. Gene–gene interactions were then detected by generalized multifactor dimensionality reduction (GMDR). The results revealed that CACNA 1A rs2248069 and rsl6030, CACNA 1C rs216008 and rs2239050, and CACNA 1H rs3794619, and rs7191246 SNPs were all associated with DPN, while rs2248069, rsl6030, rs2239050, and rs7191246 polymorphisms were attributed to the susceptibility to DPN. It was also observed that the optimal models were three-, four- and five-dimensional models with a prediction accuracy of 61.05% and the greatest consistency of cross-validation was 10/10. In summary, these findings demonstrated that the SNPs in the CACNA 1A, CACNA 1C, and CACNA 1H genes were involved in the pathophysiology of DPN. In addition, polymorphisms in the CACNA 1A, CACNA 1C, and CACNA 1H genes and their interactions also had effects on DPN.

scholarly journals Association of single-nucleotide polymorphisms in the ESR2 and FSHR genes with poor ovarian response in infertile Jordanian women

2021 ◽  
Vol 48 (1) ◽  
pp. 69-79
Author(s):  
Amer Mahmoud Sindiani ◽  
Osamah Batiha ◽  
Esra’a Al-zoubi ◽  
Sara Khadrawi ◽  
Ghadeer Alsoukhni ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Statistical Significance ◽  
Ovarian Response ◽  
Control Group ◽  
P Value ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
Poor Ovarian Response ◽  
Single Nucleotide ◽  
Number Of Patients

Objective: Poor ovarian response (POR) refers to a subnormal follicular response that leads to a decrease in the quality and quantity of the eggs retrieved after ovarian stimulation during assisted reproductive treatment (ART). The present study investigated the associations of multiple variants of the estrogen receptor 2 (ESR2) and follicle-stimulating hormone receptor (FSHR) genes with POR in infertile Jordanian women undergoing ART.Methods: Four polymorphisms, namely ESR2 rs1256049, ESR2 rs4986938, FSHR rs6165, and FSHR rs6166, were investigated in 60 infertile Jordanian women undergoing ART (the case group) and 60 age-matched fertile women (the control group), with a mean age of 33.60±6.34 years. Single-nucleotide polymorphisms (SNPs) were detected by restriction fragment length polymorphism and then validated using Sanger sequencing.Results: The p-value of the difference between the case and control groups regarding FSHR rs6166 was very close to 0.05 (p=0.054). However, no significant differences were observed between the two groups in terms of the other three SNPs, namely ESR2 rs1256049, ESR2 rs4986938, and FSHR rs6165 (p=0.561, p=0.433, and p=0.696, respectively).Conclusion: The association between FSHR rs6166 and POR was not statistically meaningful in the present study, but the near-significant result of this experiment suggests that statistical significance might be found in a future study with a larger number of patients.

scholarly journals CD44, IL-33, and ST2 Gene Polymorphisms on Hepatocellular Carcinoma Susceptibility in the Chinese Population

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Xiaolan Pan ◽  
Meiqin Li ◽  
Lei Huang ◽  
Dan Mo ◽  
Yihua Liang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Single Nucleotide Polymorphisms ◽  
Chinese Population ◽  
Haplotype Analysis ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
Cancer Stemness ◽  
Single Nucleotide ◽  
The Relationship

The interleukin- (IL-) 33/ST2 axis plays a pivotal role in tumorigenesis through influencing cancer stemness and other mechanisms. CD44 is one of the critical markers of hepatocellular carcinoma (HCC) among the cancer stem cells (CSCs). There is still a lack of CD44 gene single-nucleotide polymorphisms (SNPs) combined with IL-33/ST2 pathway single-nucleotide polymorphisms in HCC susceptibility analysis literature, although CD44 and IL-33/ST2 have been reported separately in human cancers. This study is aimed at investigating the relationship between CD44, IL-33, and ST2 SNPs and HCC susceptibility and clinicopathological features. We analyzed 565 HCC patients and 561 healthy controls in the Chinese population. The genes for CD44rs187115A>G, IL-33 rs1929992A>G, and ST2 rs3821204G>C were typed using the SNaPshot method. We found that the distribution frequencies of CD44 and ST2 alleles and genotypes in both the HCC case group and the control group were statistically significant ( p < 0.05 ). The results showed that individuals carrying at least one G allele of the CD44 rs187115 gene were at a higher risk than the AA genotype carriers ( p = 0.007 , odds   ratio   OR = 1.429 , 95% confidence interval (CI): 1.102–1.854). Similarly, individuals with at least one C allele of ST2 rs3821204 had a higher risk of HCC than those with GG genes ( p ≤ 0.001 , OR = 1.647 , 95% CI: 1.296-2.093). Combining the haplotype analysis of the 3 loci suggested that CD44 rs187115, IL-33 rs1929992, and ST2 rs3821204 are associated with the risk of HCC and could potentially serve as useful genetic markers for HCC in some populations of China.

scholarly journals Interaction of Arg194Trp and Arg399Gln genotypes with the risk of radiation on cancer patients

2019 ◽  
Vol 20 (8) ◽  
Author(s):  
HARRY NUGROHO EKO SURNIYANTORO ◽  
NASTITI RAHAJENG ◽  
YANTI LUSIYANTI ◽  
TUR RAHARDJO ◽  
DYAH ERAWATI ◽  
...  
Keyword(s):  
Dna Damage ◽  
Cancer Patients ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Mutant Genotype ◽  
Polymerase Chain ◽  
Micronuclei Assay

Abstract. Surniyantoro HNE, Rahajeng N, Lusiyanti Y, Rahardjo T, Erawati D, Choridah L, Dhamiyati W, Dwidanarti SR. 2019. Interaction of Arg194Trp and Arg399Gln genotypes with the risk of radiation on cancer patients. Biodiversitas 20: 2128-2133. Two of the common single-nucleotide polymorphisms are X-ray repair cross-complementary group 1 on exon 6 (Arg194Trp) and exon 10 (Arg399Gln). The purpose of this study was to determine the interactions between Arg194Trp and Arg399Gln genotypes combination with the risk of radiation on cancer patients in Indonesia, linked to micronuclei frequency as a biomarker of DNA damage. This study consisted of 19 patients with various cancer as the case group and 37 non-cancer participants as the control group. The determination of Arg149Trp and Arg399Gln alleles were performed using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism. Micronuclei assay was performed using Cytokinesis-block micronuclei cytome assay. The results of our study showed that micronuclei frequency was very significantly higher in the cancer patients compared to controls (111.16 ± 76.24 versus 16.89 ± 9.72, p<0.0001). Patients with heterozygous mutant genotypes CT had a lower frequency of micronuclei than patients with normal CC genotypes (105.6 ± 80.97 versus 117.33 ± 74.97). Likewise, patients with mutant genotype AA had a lower frequency of micronuclei than patients with normal GG genotype (64 versus 129.71 ± 90.68). The genetic polymorphisms of Arg194Trp and Arg399Gln demonstrated an association with the level of DNA damage on cancer patients.

scholarly journals Correlations between ACE single nucleotide polymorphisms and prognosis of patients with septic shock

2017 ◽  
Vol 37 (2) ◽  
Author(s):  
Xin-Man Dou ◽  
Hui-Juan Cheng ◽  
Ling Meng ◽  
Lin-Lin Zhou ◽  
Yi-Hong Ke ◽  
...  
Keyword(s):  
Septic Shock ◽  
Single Nucleotide Polymorphisms ◽  
Survival Curve ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Kaplan Meier ◽  
Genotype Frequencies ◽  
Ace Activity

The aim of the present study is to investigate association between septic shock (SS) and angiotensin I-converting enzyme (ACE) single nucleotide polymorphisms (SNPs). From October 2009 to December 2016, 238 SS patients and 242 healthy individuals were selected for our study. ACE activity was detected, ACE rs4291 and rs4646994 polymorphisms were detected using PCR-restriction fragment length polymorphism (PCR-RFLP). The Kaplan–Meier survival curve was employed to evaluate the association between ACE SNPs and patients’ survival and univariate and multivariate analyses to estimate risk factors for SS. ACE activity in the case group was increased in comparison with the control group. Allele and genotype frequencies of rs4291 and rs4646994 were different between the case and control groups. The TT genotype frequency of the rs4291 polymorphisms and the DD genotype of the rs4646994 polymorphisms of the case group were higher than those in the control group. The AT and TT genotypes indicated a significant elevation of ACE activity than the AA genotype, while a significant decline was found in the DI and II genotypes in comparison with the DI genotype. Patients with TT or DD genotypes had increased fatality rate within 7 and 30 days when compared with those with non-TT or non-DD genotypes. Lower sepsis-related organ failure assessment (SOFA) scores, rs4291, serum ACE and rs4646994 were all considered as risky factors for SS patients. The study demonstrates that TT genotype of rs4291 or DD genotype of rs4646994 may be indicative of a higher risk of SS and a poorer prognosis in SS patients.

scholarly journals Genotyping of Essential Hypertension Single-Nucleotide Polymorphisms by a Homogeneous PCR Method with Universal Energy Transfer Primers

2002 ◽  
Vol 48 (12) ◽  
pp. 2131-2140 ◽  
Author(s):  
Chikh Bengra ◽  
Theodore E Mifflin ◽  
Yuri Khripin ◽  
Paolo Manunta ◽  
Scott M Williams ◽  
...  
Keyword(s):  
Essential Hypertension ◽  
Single Nucleotide Polymorphisms ◽  
Restriction Endonucleases ◽  
Control Group ◽  
Italian Population ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Hypertensive Patients ◽  
Unique Restriction ◽  
Set Up

Abstract Background: Human hypertension is a complex, multifactorial disease with a heritability of more than 30–50%. A genetic screening test based on analysis of multiple single-nucleotide polymorphisms (SNPs) to assess the likelihood of developing hypertension would be helpful for disease management. Methods: Tailed allele-specific primers were designed to amplify by PCR six biallelic SNP loci [three in G protein-coupled receptor kinase type 4 (GRK4): R65L, A142V, and A486V; two in angiotensinogen: −6G→A and M235T; and one in aldosterone synthase: −344C→T] associated with essential hypertension. PCRs of SNP loci were coupled (via a common sequence of 21 nucleotide tails) to incorporate Universal Amplifluor™ primers labeled with fluorescein or sulforhodamine in a homogeneous format. Use of Amplifluors in SNP PCRs produced labeled amplicons, the fluorescence of which was quantified by a microplate reader and then analyzed via an Excel macro to provide genotypes for all six SNP loci. Unique restriction endonucleases were identified for five SNP loci that could independently confirm homogeneous PCR results when needed. Results: We developed six homogeneous PCR assays that were set up, performed, and fluorometrically analyzed in 96-well microplates. Allele frequencies were determined for six SNPs in 60 Italian hypertensive patients and a control group of 60 normotensive persons. A significant correlation (P = 0.034) between one SNP [GRK4 (A486V)] and the hypertensive patients was observed. Genotyping results for five of six SNPs were confirmed by digesting corresponding amplicons with locus-specific restriction endonucleases. Conclusions: We developed a simple and homogeneous fluorescent protocol that has been used to determine the SNP genotype for six loci in a population of hypertensive and normotensive persons. We also observed a significant association (P = 0.034) between one SNP (A486V) and an Italian population of mildly hypertensive patients.

In search for polymorphic DNA markers to increase resistance and production level of hens

2020 ◽  
Vol 1 (12) ◽  
pp. 98-104
Author(s):  
I. I. Kochish ◽  
◽  
О. V. Myasnikova ◽  
V. V. Martynov ◽  
V. I. Smolensky ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Dopamine Receptor ◽  
Dna Markers ◽  
Production Level ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Productive Traits ◽  
Pure Lines ◽  
The Relationship

In the article, the authors assess the prospect of using genetic polymorphisms to predict resistance to diseases and a possible enlarge in chicken production level. Using the PCR-RFLP method, we analyzed the SNP frequencies in the genes of myostatin (MSTN, or GDF-8), proopiomelanocortin (POMC), and dopamine receptor D2 (DRD2) in chickens of the pure lines of the Smena-8 broiler hybreed – B6, B7m / o (slow-feathering), B7b / o (fast-fledging) FSBI "Breeding and Genetic Center “Smena”. The relationship between the studied single nucleotide polymorphisms and the productive traits of chickens was determined. The assessment of the possibilities of using polymorphisms to increase the resistance and productivity of linear birds.

scholarly journals Association Analysis of Single Nucleotide Polymorphisms in the 5′ Regulatory Region of the IL-6 Gene with Eimeria tenella Resistance in Jinghai Yellow Chickens

Genes ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 890 ◽  
Author(s):  
Hailiang Yu ◽  
Wenbin Zou ◽  
Shijie Xin ◽  
Xiaohui Wang ◽  
Changhao Mi ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Association Analysis ◽  
Direct Sequencing ◽  
Regulatory Region ◽  
Eimeria Tenella ◽  
Least Square ◽  
Bursa Of Fabricius ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide

Interleukin 6 (IL-6) is an immunoregulatory cytokine involved in various inflammatory and immune responses. To investigate the effects of single nucleotide polymorphisms (SNPs) and haplotypes of IL-6 on resistance to Eimeria tenella (E. tenella), SNPs in the 5′ regulatory region of IL-6 were detected with direct sequencing, and the effects of SNPs and haplotypes on resistance to E. tenella were analyzed by the least square model in Jinghai yellow chickens. Nineteen SNPs were identified in the 5′ regulation region of IL-6, among which three SNPs were newly discovered. The SNP association analysis results showed that nine of the SNPs were significantly associated with E. tenella resistance indexes; the A-483G locus was significantly associated with the GSH-Px, IL-2, and IL-17 indexes (p < 0.05); the C-447G locus was significantly associated with the SOD, GSH-Px, IL-17, and IL-2 indexes (p < 0.05); and the G-357A locus had significant effects on the CAT and IL-16 indexes (p < 0.05). Haplotype analysis showed that H2H3 and H2H5 were favorable haplotype combinations with good coccidium resistance. Furthermore, we used qRT-PCR and observed that the expression of IL-6 in the infection group was higher than that in the control group in the liver, proventriculus, small intestine, thymus, kidney, and bursa of Fabricius and extremely significantly different than that in the cecum especially (p < 0.01). In summary, SNPs and haplotypes in the 5′ regulatory region of IL-6 have important effects on E. tenella resistance, and the results will provide a reference for molecular marker selection of E. tenella resistance in Jinghai yellow chickens.

Genetic association study of SOX2 gene polymorphisms with high myopia in a Chinese population

2020 ◽  
pp. 112067212090466
Author(s):  
Lan Li ◽  
Ying Juan Cui ◽  
Yunchun Zou ◽  
Liyuan Yang ◽  
Ximin Yin ◽  
...  
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Chinese Population ◽  
High Myopia ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Spherical Equivalent ◽  
Chi Square ◽  
Single Nucleotide ◽  
Sox2 Gene ◽  
Chi Square Test

Purpose: The aim of this study is to investigate whether SOX2 gene variants were associated with high myopia in a Chinese population. Methods: This study is conducted using case-control association analysis. This study recruited 83 healthy controls (with binocular spherical equivalent between –0.50 and +0.50 D) and 117 high myopia cases (spherical equivalent > –6.00 D in both eyes). Three single-nucleotide polymorphisms were selected from HapMap database for genotyping by direct sequencing. Statistical software (SPSS 22.0) was used for statistical analysis. The chi-square test was used to examine the difference in the frequency between cases and controls. Results: Genotype distributions in the three single-nucleotide polymorphisms were all in accordance with the Hardy–Weinberg equilibrium. The differences of rs4575941 locus genotype frequency and allele frequency between the case group and the control group were statistically significant (p = .043 and p = .029, respectively). The rs4575941 allele G frequency in the high myopia group was significantly higher than that in the control group with an odds ratio value of 1.579. However, the value of a chi-square test for the trend was 0.029, and after Bonferroni test, the p value was .087. Conclusion: In Chinese population, rs4575941 in SOX2 gene was likely to play some roles in the genetic susceptibility to high myopia; the rs4575941 allele G might be a risk gene for high myopia.

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