scholarly journals The Association Between CTLA-4, CD80/86, and CD28 Gene Polymorphisms and Rheumatoid Arthritis: An Original Study and Meta-Analysis

2021 ◽  
Vol 8 ◽  
Author(s):  
Weixi Liu ◽  
Zhicheng Yang ◽  
Yan Chen ◽  
Haoyu Yang ◽  
Xiaoxian Wan ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Gene Polymorphism ◽  
Gene Polymorphisms ◽  
Meta Analysis ◽  
Costimulatory Molecule ◽  
Functional Class ◽  
Chinese Han Population ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Han Population

Background: Rheumatoid arthritis (RA) is related to several pivotal susceptibility genes, including cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and costimulatory molecule (CD80/CD86) genes. Although the connection between polymorphisms of CTLA-4 and CD86 genes in different populations of RA have been studied extensively, the results are controversial.Objective: To clarify the correlation in the Chinese Han population between CTLA-4, CD80/86, and CD28 gene polymorphisms, and RA susceptibility.Methods: A case-control study (574 RA patients and 804 controls) was conducted to determine the correlation between CTLA-4 rs231775 and rs16840252 gene polymorphisms, CD86 rs17281995 gene polymorphisms, and the risk of RA for the Chinese Han population. Furthermore, an additional meta-analysis, including three single nucleotide polymorphisms (SNPs) (CTLA-4 rs231775, CTLA-4 rs3087243, and CTLA-4 rs5742909) from 32 citations, including 43 studies, 24,703 cases and 23,825 controls was performed to elucidate the relationship between known SNPs in the CTLA-4 genes and RA for more robust conclusions.Results: The results showed that CTLA-4 rs231775 gene polymorphism decreased the RA risk (GA vs. AA, OR = 0.77, P = 0.025), whereas CTLA-4 rs16840252 and CD86 rs17281995 gene polymorphisms were not related to RA susceptibility. Stratification analyses by RF, ACPA, CRP, ESR, DAS28, and functional class identified significant associations for CTLA-4 rs231775 and rs16840252 gene polymorphisms in the RF-positive and RF-negative groups. A meta-analysis of the literature on CTLA-4 gene polymorphisms and RA risk revealed that the risk of RA was decreased by CTLA-4 rs231775 gene polymorphisms.Conclusions: The CTLA-4 rs231775 gene polymorphism decreased the risk of RA, whereas CTLA-4 rs16840252 and CD86 rs17281995 gene polymorphisms were not related to RA risk. A meta-analysis indicated that CTLA-4 rs231775 and rs3087243 gene polymorphisms decreased the risk of RA. To support these analytical results, additional clinical cases should be investigated in further studies.

scholarly journals The Association between Gene Polymorphism of TCF7L2 and Type 2 Diabetes in Chinese Han Population: A Meta-Analysis

PLoS ONE ◽  
2013 ◽  
Vol 8 (3) ◽  
pp. e59495 ◽  
Author(s):  
Haoying Dou ◽  
Enting Ma ◽  
Liqun Yin ◽  
Yinghui Jin ◽  
Hongwu Wang
Keyword(s):  
Type 2 Diabetes ◽  
Gene Polymorphism ◽  
Meta Analysis ◽  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population

scholarly journals The genetic association between TLR-1, -2, -4, and -6 gene polymorphisms and rheumatoid arthritis (RA) susceptibility in a Chinese Han population

2021 ◽  
Keyword(s):  
Rheumatoid Arthritis ◽  
Genetic Association ◽  
Full Text ◽  
Gene Polymorphisms ◽  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population

Abstract The full text of this preprint has been withdrawn by the authors due to author disagreement with the posting of the preprint. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.

NOTCH4 Single-Nucleotide Polymorphism Is Associated With Brain Arteriovenous Malformation in a Chinese Han Population

2021 ◽  
Author(s):  
Jianbo Zhang ◽  
Zhenjun Li ◽  
Haiyan Fan ◽  
Hengxian Su ◽  
Hongliang Meng ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Gene Polymorphisms ◽  
Vascular Malformations ◽  
Chinese Han Population ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Single Nucleotide ◽  
Han Population ◽  
Genotype Frequencies

Abstract Background: Brain arteriovenous malformations (BAVMs) are high-flow intracranial vascular malformations characterized by the direct connection of arteries to veins without an intervening capillary bed. It is one of the main causes of intracranial hemorrhage and epilepsy though morbidity is low. Angiogenesis, heredity, inflammation, and arteriovenous malformation syndromes play important roles in BAVM formation. Animal experiments and previous studies have confirmed that NOTCH4 may be associated with BAVM development. Our study identifies a connection between NOTCH4 gene polymorphisms and BAVM in a Chinese Han population.Methods: We enrolled 150 patients with BAVMs confirmed by digital subtraction angiography (DSA) in the Department of Neurosurgery, Zhujiang Hospital, Southern Medical University from June 2017 to July 2019. Simultaneously, 150 patients without cerebrovascular disease were confirmed by computed tomography angiography/magnetic resonance angiography/DSA. DNA was extracted from peripheral blood and NOTCH4 genotypes were identified by PCR-ligase detection reaction. Chi-square test or Fisher’s exact test was used to evaluate the difference in allele and genotype frequencies between the BAVM group, control group, bleeding, and other complications.Results: Two single-nucleotide polymorphisms (SNPs), rs443198 and rs438475, were significantly associated with BAVM. No SNP genotypes were significantly associated with hemorrhage and epilepsy. SNPs rs443198_ AA-SNP and rs438475_ AA-SNP may be associated with lower risk of BAVM (P = 0.011, OR = 0.459, 95% CI 0.250–0.845; P = 0.033, OR = 0.759, 95% CI 0.479–1.204).Conclusion: NOTCH4 gene polymorphisms were associated with BAVM and may be a risk factor in a Chinese Han population.

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