scholarly journals Mutation screening of the UBE3A gene in Chinese Han population with autism

2020 ◽  
Author(s):  
Xue Zhao ◽  
Ran Zhang ◽  
Shunying Yu
Keyword(s):  
Sample Size ◽  
Sanger Sequencing ◽  
Autism Spectrum ◽  
Chinese Han Population ◽  
Control Groups ◽  
Chinese Han ◽  
Han Population ◽  
Coding Regions ◽  
Genotype Frequencies ◽  
And Control

Abstract Background 15q11-13 region is one of the most complex chromosomal regions in the human genome. UBE3A is an important candidate gene of autism spectrum disorder (ASD), which located at the 15q11-13 region and encodes ubiquitin-protein ligase E3A. Previous studies about UBE3A gene and ASD have shown inconsistent results and few studies were performed in Chinese population. This study aimed to detect the genetic variation of UBE3A gene in Chinese Han population with ASD and analyze the genetic association between these variations and ASD. Methods The samples consisted of 192 patients with clinical diagnosis of autism according to the DSM-IV diagnostic criteria and 192 healthy controls. We searched for mutations at coding sequence (CDS) regions and their adjacent non-coding regions of UBE3A gene using the high resolution melting (HRM) and Sanger sequencing methods. We further increased sample size to validate the detected variants using HRM and analyzed the difference of allele and genotype frequencies between case and control groups. Results A known single nucleotide polymorphism (T > C, rs150331504) located at the CDS4 and a known 5 bp insertion/deletion variation (AACTC+/-, rs71127053) located at the intron region of the upstream 288 bp of the CDS2 of UBE3A gene were detected using Sanger sequencing method. The association analysis suggested that there were no significant difference about the allele and genotype frequencies of rs71127053 and rs150331504 between case and control groups after extending the sample size. Besides, rs150331504 is a synonymous mutation and we analyzed the minimum free energy (MFE) of mRNA coded by the different alleles of rs150331504. The result showed that MFE values of the allele T and allele C of rs150331504 were different and indicated that the variant might alter the mRNA secondary structure. We did not detect mutations in other coding regions of UBE3A gene. Conclusions These findings showed that UBE3A gene might not be a major disease gene in Chinese ASD cases.

scholarly journals Mutation screening of the UBE3A gene in Chinese Han population with autism

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Xue Zhao ◽  
Ran Zhang ◽  
Shunying Yu
Keyword(s):  
Secondary Structure ◽  
Sample Size ◽  
Association Analysis ◽  
Sanger Sequencing ◽  
Healthy Controls ◽  
Control Groups ◽  
Chinese Han ◽  
Han Population ◽  
Coding Regions ◽  
And Control

Abstract Background 15q11–13 region is one of the most complex chromosomal regions in the human genome. UBE3A is an important candidate gene of autism spectrum disorder (ASD), which located at the 15q11–13 region and encodes ubiquitin-protein ligase E3A. Previous studies about UBE3A gene and ASD have shown inconsistent results and few studies were performed in Chinese population. This study aimed to detect the genetic mutations of UBE3A gene in Chinese Han population with ASD and analyze genetic association between these variants and ASD. Methods The samples consisted of 192 patients with autism according to the DSM-IV diagnostic criteria and 192 healthy controls. We searched for mutations at coding sequence (CDS) regions and their adjacent non-coding regions of UBE3A gene using the high resolution melting (HRM) and Sanger sequencing methods. We further increased sample size to validate the detected variants using HRM and conducted association analysis between case and control groups. Results A known single nucleotide polymorphism (T > C, rs150331504) located at the CDS4 and a known 5 bp insertion/deletion variation (AACTC+/−, rs71127053) located at the intron region of the upstream 288 bp of the CDS2 of UBE3A gene were detected using Sanger sequencing method. The ASD samples of case group were 391 for rs71127053, 384 for rs150331504 and 384 healthy controls, which were used to make an association analysis. The results of association analysis suggested that there were no significant difference about the allele and genotype frequencies of rs71127053 and rs150331504 between case and control groups after extending the sample size. Besides, rs150331504 is a synonymous mutation and we compared the secondary structure and minimum free energy (MFE) of mRNA harboring the allele T or C of rs150331504 using RNAfold software. We found that the centroid secondary structure apparently differs along with the polymorphisms of rs150331504 T > C, the results suggested that this variant might change the secondary structure of mRNA of UBE3A gene. We did not detect mutations in other coding regions of UBE3A gene. Conclusions These findings showed that UBE3A gene might not be a major disease gene in Chinese ASD cases.

scholarly journals Mutation screening of the UBE3A gene in Chinese Han population with autism

2020 ◽  
Author(s):  
Xue Zhao ◽  
Ran Zhang ◽  
Shunying Yu
Keyword(s):  
Secondary Structure ◽  
Sample Size ◽  
Association Analysis ◽  
Sanger Sequencing ◽  
Healthy Controls ◽  
Control Groups ◽  
Chinese Han ◽  
Han Population ◽  
Coding Regions ◽  
And Control

Abstract Background15q11-13 region is one of the most complex chromosomal regions in the human genome. UBE3A is an important candidate gene of autism spectrum disorder (ASD), which located at the 15q11-13 region and encodes ubiquitin-protein ligase E3A. Previous studies about UBE3A gene and ASD have shown inconsistent results and few studies were performed in Chinese population. This study aimed to detect the genetic mutations of UBE3A gene in Chinese Han population with ASD and analyze genetic association between these variants and ASD.MethodsThe samples consisted of 192 patients with clinical diagnosis of autism according to the DSM-IV diagnostic criteria and 192 healthy controls. We searched for mutations at coding sequence (CDS) regions and their adjacent non-coding regions of UBE3A gene using the high resolution melting (HRM) and Sanger sequencing methods. We further increased sample size to validate the detected variants using HRM and conducted association analysis between case and control groups.ResultsA known single nucleotide polymorphism (T>C, rs150331504) located at the CDS4 and a known 5bp insertion/deletion variation (AACTC+/-, rs71127053) located at the intron region of the upstream 288bp of the CDS2 of UBE3A gene were detected using Sanger sequencing method. The ASD samples of case group were 391 for rs71127053, 384 for rs150331504 and 384 healthy controls, which were used to make an association analysis. The results of association analysis suggested that there were no significant difference about the allele and genotype frequencies of rs71127053 and rs150331504 between case and control groups after extending the sample size. Besides, rs150331504 is a synonymous mutation and we compared the secondary structure and minimum free energy (MFE) of mRNA harboring the allele T or C of rs150331504 using RNAfold software. We found that the centroid secondary structure apparently differs along with the polymorphisms of rs150331504 T>C, the results suggested that this variant might change the secondary structure of mRNA of UBE3A gene. We did not detect mutations in other coding regions of UBE3A gene. ConclusionsThese findings showed that UBE3A gene might not be a major disease gene in Chinese ASD cases.

scholarly journals Mutation screening of the UBE3A gene in Chinese Han population with autism

2020 ◽  
Author(s):  
Xue Zhao ◽  
Ran Zhang ◽  
Shunying Yu
Keyword(s):  
Secondary Structure ◽  
Sample Size ◽  
Association Analysis ◽  
Sanger Sequencing ◽  
Healthy Controls ◽  
Control Groups ◽  
Chinese Han ◽  
Han Population ◽  
Coding Regions ◽  
And Control

Abstract Background15q11-13 region is one of the most complex chromosomal regions in the human genome. UBE3A is an important candidate gene of autism spectrum disorder (ASD), which located at the 15q11-13 region and encodes ubiquitin-protein ligase E3A. Previous studies about UBE3A gene and ASD have shown inconsistent results and few studies were performed in Chinese population. This study aimed to detect the genetic mutations of UBE3A gene in Chinese Han population with ASD and analyze genetic association between these variants and ASD.MethodsThe samples consisted of 192 patients with autism according to the DSM-IV diagnostic criteria and 192 healthy controls. We searched for mutations at coding sequence (CDS) regions and their adjacent non-coding regions of UBE3A gene using the high resolution melting (HRM) and Sanger sequencing methods. We further increased sample size to validate the detected variants using HRM and conducted association analysis between case and control groups.ResultsA known single nucleotide polymorphism (T>C, rs150331504) located at the CDS4 and a known 5bp insertion/deletion variation (AACTC+/-, rs71127053) located at the intron region of the upstream 288bp of the CDS2 of UBE3A gene were detected using Sanger sequencing method. The ASD samples of case group were 391 for rs71127053, 384 for rs150331504 and 384 healthy controls, which were used to make an association analysis. The results of association analysis suggested that there were no significant difference about the allele and genotype frequencies of rs71127053 and rs150331504 between case and control groups after extending the sample size. Besides, rs150331504 is a synonymous mutation and we compared the secondary structure and minimum free energy (MFE) of mRNA harboring the allele T or C of rs150331504 using RNAfold software. We found that the centroid secondary structure apparently differs along with the polymorphisms of rs150331504 T>C, the results suggested that this variant might change the secondary structure of mRNA of UBE3A gene. We did not detect mutations in other coding regions of UBE3A gene. ConclusionsThese findings showed that UBE3A gene might not be a major disease gene in Chinese ASD cases.

scholarly journals Association between the omentin-1 gene rs2274907 A>T polymorphism and colorectal cancer in the Chinese Han population: a case-control study

2021 ◽  
Vol 49 (4) ◽  
pp. 030006052110065
Author(s):  
Yaqin Zhang ◽  
Xiaotong Zhao ◽  
Yongxiang Li ◽  
Youmin Wang ◽  
Mingwei Chen
Keyword(s):  
Colorectal Cancer ◽  
The Body ◽  
Chinese Han Population ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Groups ◽  
Chinese Han ◽  
Han Population ◽  
Potential Biomarker ◽  
Increased Risk ◽  
And Control

Objective To explore the relationship between the omentin-1 gene rs2274907 A>T polymorphism and colorectal cancer (CRC) in the Chinese Han population. Methods rs2274907 A>T was assessed by PCR–restriction fragment length polymorphism analysis. Plasma omentin-1 expression from 358 patients with CRC and 286 healthy controls was analyzed by enzyme-linked immunosorbent assay. CRC and control groups were divided into subgroups according to the body mass index (BMI) threshold of 25 kg/m2. Results No significant differences were observed between CRC and control groups in terms of genotype or allele frequencies of rs2274907 A>T. Compared with individuals with BMI <25 kg/m2 and the rs2274907 TT genotype, those with AA+AT genotypes and BMI ≥25 kg/m2 had a 3.027-fold increased risk of CRC. A significant tendency toward a higher stage of colorectal adenocarcinomas and depth of invasion was observed in individuals with the rs2274907 AA genotype compared with other genotypes. Conclusions The omentin-1 gene rs2274907 A>T polymorphism does not seem to play a critical role in the development of CRC in the Chinese Han population, but an interaction between the rs2274907 A allele and BMI may increase the CRC risk. The rs2274907 AA genotype is a potential biomarker for CRC stage progression.

scholarly journals Analysis of Single Nucleotide Polymorphisms within ADAM12 and Risk of Knee Osteoarthritis in a Chinese Han Population

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Lin Wang ◽  
Lin Guo ◽  
Fengde Tian ◽  
Ruihu Hao ◽  
Tiejun Yang
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Population Based ◽  
Recessive Model ◽  
Chinese Han Population ◽  
Nucleotide Polymorphisms ◽  
Chinese Han ◽  
Single Nucleotide ◽  
Han Population ◽  
Genotype Frequencies ◽  
Increased Risk

Objective. Osteoarthritis (OA) is a complex arthritic condition in which the genetic factor plays a major role. One of the candidate genes of is the ADAM12 gene, but no consistency has been reached till now. This study aims to investigate the potential role of four single nucleotide polymorphisms (SNPs) of the ADAM12 gene in susceptibility to knee OA and its progression in Chinese Han population.Methods. The rs1278279, rs3740199, rs1044122, and rs1871054 polymorphisms were genotyped and compared in a population based cohort consisting of 164 OA subjects and 200 age- and gender-matched controls.Results. The SNP rs1871054 was found with increased risk of OA susceptibility in comparing the genotype frequencies between the case and control groups no matter for which model of comparison (allele level, dominant model, recessive model, and extreme genotype model). Additionally, the SNP rs1871054 was found associated with increased OA severity according to the K/L grade.Conclusion. In summary, we have identified that the rs1871054 variant within the ADAM12 gene is a risk factor for increased osteoarthritis susceptibility and severity.

scholarly journals A Study of IL-1β, MMP-3, TGF-β1, and GDF5 Polymorphisms and Their Association with Primary Frozen Shoulder in a Chinese Han Population

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Wenxiang Chen ◽  
Jia Meng ◽  
Hong Qian ◽  
Zhantao Deng ◽  
Shuo Chen ◽  
...  
Keyword(s):  
Inflammatory Diseases ◽  
Frozen Shoulder ◽  
Chinese Han Population ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Serum Samples ◽  
Chinese Han ◽  
Han Population ◽  
Genotype Frequencies ◽  
Uncertain Etiology

Primary frozen shoulder (PFS) is a common condition of uncertain etiology that is characterized by shoulder pain and restriction of active and passive glenohumeral motions. The pathophysiology involves chronic inflammation and fibrosis of the joint capsule. Single nucleotide polymorphisms (SNPs) at IL-1β, MMP3, TGF-β1, and GDF5 have been associated with risk of a variety of inflammatory diseases; however, no studies have examined these SNPs with susceptibility to PFS. We investigated allele and genotype frequencies of rs1143627 at IL-1β, rs650108 at MMP-3, rs1800469 at TGF-β1, and rs143383 at GDF5 in 42 patients with PFS and 50 healthy controls in a Chinese Han population. Serum samples from both cohorts were evaluated to determine the expression levels of IL-1β. We found that the IL-1β rs1143627 CC genotype was associated with a decreased risk of PFS compared to the TT genotype (P=0.022) and that serum IL-1β was expressed at a significantly higher level in the PFS cohort compared to that found in the control group (P<0.001). Our findings indicated no evidence of an association between rs650108, rs1800469, or rs143383 and PFS. IL-1β is associated with susceptibility to PFS and may have a role in its pathogenesis in a Chinese Han population.

scholarly journals Association between Genetic Variants in DUSP15, CNTNAP2, and PCDHA Genes and Risk of Childhood Autism Spectrum Disorder

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Fang Fang ◽  
Minxia Ge ◽  
Jun Liu ◽  
Zengyu Zhang ◽  
Hong Yu ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Language Impairment ◽  
Rating Scale ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population ◽  
Increased Risk ◽  
Severity Of The Disease

Objective. Genetic factors play an important role in the development of autism spectrum disorder (ASD). This case-control study was to determine the association between childhood ASD and single nucleotide polymorphisms (SNPs) rs3746599 in the DUSP15 gene, rs7794745 in the CNTNAP2 gene, and rs251379 in the PCDHA gene in a Chinese Han population. Methods. Genotypes of SNPs were examined in DNA extracted from blood cells from 201 children with ASD and 200 healthy controls. The Children Autism Rating Scale (CARS) was applied to evaluate the severity of the disease and language impairment. The relationship between SNPs and the risk of ASD or the severity of the disease was determined by logistic regression and one-way ANOVA. Results. The genotype G/G of rs3746599 in the DUSP15 gene was significantly associated with a decreased risk of ASD (odds ratio OR = 0.65 , 95% confidence interval (CI): 0.42-0.99, P = 0.0449 ). The T allele of rs7794745 in the CNTNAP2 gene was associated with an increased risk of ASD ( OR = 1.34 , 95% CI: 1.01-1.77, P = 0.0435 ). The SNP rs251379 was not associated with ASD. Though none of the SNPs examined were associated with ASD severity, rs7794745 was associated with severity of language impairment. Conclusions. Our findings suggest that both rs3746599 in the DUSP15 gene and rs7794745 in the CNTNAP2 gene are associated with risk of childhood ASD, and rs7794745 is also related to the severity of language impairment in autistic children from a Chinese Han population.

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.

GW24-e1197 Allele and genotype frequencies of CYP2C19 in Chinese Han population

Heart ◽  
2013 ◽  
Vol 99 (Suppl 3) ◽  
pp. A128.1-A128
Author(s):  
Yang Xiuchun ◽  
Liu Fan ◽  
Lu Jingchao ◽  
Xiao Bing ◽  
Cui Wei
Keyword(s):  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population ◽  
Genotype Frequencies

scholarly journals Associations of CXCL1 gene 5’UTR variations with ovarian cancer

2020 ◽  
Author(s):  
Man Guo ◽  
Chao Xu ◽  
Yan-Zhe Chen ◽  
Qi-Wen Sun ◽  
Xin-Ying Zhao ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Chinese Han Population ◽  
Chinese Han ◽  
Han Population ◽  
Chemokine Ligand ◽  
Hardy Weinberg Equilibrium ◽  
Spss Software ◽  
And Control ◽  
Healthy Participants ◽  
Very High

Abstract Background: There are about 2.4 hundred thousand new cases and 1.5 hundred thousand deaths of ovarian cancer (OC) annually in the world. Chronic inflammation is a risk factor for OC. C-X-C motif chemokine ligand 1 (CXCL1) defects may facilitate inflammation and transactivate EGFR in ovarian cancer, but the precise haplotypes associated with the potential diseases remained largely unknown. In this work, we characterized CXCL1 gene variations to elucidate their possible associations with OC. Methods: We analyzed the CXCL1 gene for 300 OC patients with 400 healthy participants as controls. The statistical analyses and Hardy-Weinberg equilibrium tests of the patients and control populations were conducted using the SPSS software (version 19.0) and Plink (version 1.9). Results: The variants rs11547681, rs201090116, rs199791199, rs181868085, rs4074 and rs1814092 within or near the CXCL1 gene were characterized. The genetic heterozygosity of rs11547681 and rs4074 was very high. Statistical analysis showed that the variant rs11547681 in the gene was closely associated with the risk of OC in the Chinese Han population, although this variant was not associated with FIGO stages or pathological grades of the patients. Conclusions: Rs11547681 in CXCL1 gene was associated with the risk of OC in the Chinese Han population.

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