Objective： To estimate the relationship between genetic polymorphisms of X-ray repair cross- complementing group 1 （XRCC1） and the susceptibility to childhood acute lymphoblastic leukemia （ALL）. Methods： Relevan...Objective： To estimate the relationship between genetic polymorphisms of X-ray repair cross- complementing group 1 （XRCC1） and the susceptibility to childhood acute lymphoblastic leukemia （ALL）. Methods： Relevant case-control studies were enrolled in the meta-analysis. We applied Rev Man 4.2 software to pool raw data and test studies＇ heterogeneity and to calculate the incorporated odds ratio （OR） and 95% confidence interval （95% CI）. Results： Our data showed that the OR for the Gln allele of the Arg399Gln polymorphism, compared with the Arg allele, was 1.35 （95% CI, 1.16-1.57; P〈0.0001） for childhood ALL patients. Similarly, the homozygous genotype Gln/Gln and heterozygous genotype Arg/Gln both significantly increased the risk of childhood ALL compared with the wild genotype Arg/Arg （OR =1.58; 95% CI, 1.13-2.21; P=0.008; OR =1.51; 95% CI, 1.21-1.87; P=0.0002）. The dominant model of Arg399Gln was associated with childhood ALL risk （OR =1.54; 95% CI, 1.25-1.89; P〈0.0001）. The ethnic subgroup analysis demonstrated that the Gln allele in all five ethnic groups was prone to be a risk factor for childhood ALL just with different degrees of correlation while Arg194Trp SNP showed a protective or risk factor or irrelevant thing in different races. Conclusions： XRCC1 399 polymorphism may increase the risk of childhood ALL. Different ethnic groups with some gene polymorphism have different disease risks.展开更多
Sepiella japonica is a worldwide marine cuttlefish species of high economic value.S.japonica routinely modifying behaviors in reproductive life,such as rapid aging until death after spawning,has been recognized in art...Sepiella japonica is a worldwide marine cuttlefish species of high economic value.S.japonica routinely modifying behaviors in reproductive life,such as rapid aging until death after spawning,has been recognized in artificial breeding.However,reproductive behavior at the level of genes is rarely reported,thus,the research on the genetic basis of behavior,reproduction,and artificial breeding was limited.We applied RNA-seq in different stages of reproduction to investigate the reason of rapid aging after spawning,pre-maturity,pre-spawning after maturity,and post-spawning.The retinoid X receptor(RXR)gene family in S.japonica was identified,and 1343–1452 differentially expressed genes(DEGs)in all 3 stages of reproductive life were identified from pairwise m RNA comparisons.Furthermore,through the GO term and KEGG analysis,S.japonica could handle neuronal development and network formation before maturity and have a functional degradation of neural communication,signal transduction,vision,and gene expression after spawning.Eight Sj RXRαs have been identified and they played different roles in growth development or reproduction.Therefore,the regulation of several channels and receptors is the intrinsic molecular mechanism of rapid aging after spawning in S.japonica.This study revealed the survival strategy and provided fundamental data on the level of genes for understanding the reproductive behavior and the reproduction of S.japonica.展开更多
脆性X综合征(fragile X syndrome,FXS)是FMR1基因CGG异常重复扩增导致的疾病。本文报告1对经基因检测诊断为FXS的兄弟,2例患者分别为15岁和14岁,均存在语言障碍、智力障碍、注意力缺陷障碍、孤独症谱系障碍和FXS特征性面容等临床表现,...脆性X综合征(fragile X syndrome,FXS)是FMR1基因CGG异常重复扩增导致的疾病。本文报告1对经基因检测诊断为FXS的兄弟,2例患者分别为15岁和14岁,均存在语言障碍、智力障碍、注意力缺陷障碍、孤独症谱系障碍和FXS特征性面容等临床表现,其中先证者伴有罕见的晚发性癫痫发作,经左乙拉西坦治疗效果良好,而其弟弟经反复随访未见脑电图异常。该对病例提示FXS临床表型具有多样性和异质性。展开更多
目的以一个临床表型为低血磷性佝偻病(hypophosphatemic rickets,HR)的家系为研究对象,通过全外显子组测序寻找该家系的致病变异基因,并分析变异的致病性。方法收集HR家系临床资料,进行生化检测。提取先证者DNA,进行临床全外显子组测序...目的以一个临床表型为低血磷性佝偻病(hypophosphatemic rickets,HR)的家系为研究对象,通过全外显子组测序寻找该家系的致病变异基因,并分析变异的致病性。方法收集HR家系临床资料,进行生化检测。提取先证者DNA,进行临床全外显子组测序,并针对可疑致病变异对家系所有成员进行PCR扩增,Sanger测序验证。预测变异的致病性及对蛋白质空间结构的影响。结果该家系共3代,先证者是一位26岁女性,先证者母亲、先证者及其儿子和女儿为患者,临床表现为O型腿、鸡胸、低磷血症,骨骼X线检查、生化检测、成纤维细胞生长因子23(fibroblast growth factor 23,FGF23)检测结果提示低血磷性佝偻病。临床全外显子组测序发现PHEX(NM_000444)c.2193dupT的插入移码杂合变异,该变异可导致编码第732位的天冬酰胺变异为终止密码子(p.N732*),从而出现了蛋白质截短。先证者的母亲、儿子及女儿PHEX基因均存在该变异。根据美国医学遗传学与基因组学学会(American College of Medical Genetics and Genomics,ACMG)对变异的分类标准,分级为可能致病性变异。经查阅文献及查找人类基因突变数据库,该变异均未被报道或收录。结论本研究发现了一个PHEX新致病变异,为该家系的临床诊断和治疗及遗传咨询提供了实验依据。展开更多
文摘Objective： To estimate the relationship between genetic polymorphisms of X-ray repair cross- complementing group 1 （XRCC1） and the susceptibility to childhood acute lymphoblastic leukemia （ALL）. Methods： Relevant case-control studies were enrolled in the meta-analysis. We applied Rev Man 4.2 software to pool raw data and test studies＇ heterogeneity and to calculate the incorporated odds ratio （OR） and 95% confidence interval （95% CI）. Results： Our data showed that the OR for the Gln allele of the Arg399Gln polymorphism, compared with the Arg allele, was 1.35 （95% CI, 1.16-1.57; P〈0.0001） for childhood ALL patients. Similarly, the homozygous genotype Gln/Gln and heterozygous genotype Arg/Gln both significantly increased the risk of childhood ALL compared with the wild genotype Arg/Arg （OR =1.58; 95% CI, 1.13-2.21; P=0.008; OR =1.51; 95% CI, 1.21-1.87; P=0.0002）. The dominant model of Arg399Gln was associated with childhood ALL risk （OR =1.54; 95% CI, 1.25-1.89; P〈0.0001）. The ethnic subgroup analysis demonstrated that the Gln allele in all five ethnic groups was prone to be a risk factor for childhood ALL just with different degrees of correlation while Arg194Trp SNP showed a protective or risk factor or irrelevant thing in different races. Conclusions： XRCC1 399 polymorphism may increase the risk of childhood ALL. Different ethnic groups with some gene polymorphism have different disease risks.
基金the National Key R&D Program of China(No.2019YFD0901204)the Hong Kong,Macao and Taiwan Science and Technology Cooperation Project(No.2014DFT30120)+2 种基金the Zhejiang Provincial Natural Science Foundation of China(No.Y14C190008)the National Natural Science Foundation of China(Nos.31101937,31872547)the Science Foundation of Donghai Laboratory(No.DH-2022KF0209)。
文摘Sepiella japonica is a worldwide marine cuttlefish species of high economic value.S.japonica routinely modifying behaviors in reproductive life,such as rapid aging until death after spawning,has been recognized in artificial breeding.However,reproductive behavior at the level of genes is rarely reported,thus,the research on the genetic basis of behavior,reproduction,and artificial breeding was limited.We applied RNA-seq in different stages of reproduction to investigate the reason of rapid aging after spawning,pre-maturity,pre-spawning after maturity,and post-spawning.The retinoid X receptor(RXR)gene family in S.japonica was identified,and 1343–1452 differentially expressed genes(DEGs)in all 3 stages of reproductive life were identified from pairwise m RNA comparisons.Furthermore,through the GO term and KEGG analysis,S.japonica could handle neuronal development and network formation before maturity and have a functional degradation of neural communication,signal transduction,vision,and gene expression after spawning.Eight Sj RXRαs have been identified and they played different roles in growth development or reproduction.Therefore,the regulation of several channels and receptors is the intrinsic molecular mechanism of rapid aging after spawning in S.japonica.This study revealed the survival strategy and provided fundamental data on the level of genes for understanding the reproductive behavior and the reproduction of S.japonica.
文摘脆性X综合征(fragile X syndrome,FXS)是FMR1基因CGG异常重复扩增导致的疾病。本文报告1对经基因检测诊断为FXS的兄弟,2例患者分别为15岁和14岁,均存在语言障碍、智力障碍、注意力缺陷障碍、孤独症谱系障碍和FXS特征性面容等临床表现,其中先证者伴有罕见的晚发性癫痫发作,经左乙拉西坦治疗效果良好,而其弟弟经反复随访未见脑电图异常。该对病例提示FXS临床表型具有多样性和异质性。
文摘目的以一个临床表型为低血磷性佝偻病(hypophosphatemic rickets,HR)的家系为研究对象,通过全外显子组测序寻找该家系的致病变异基因,并分析变异的致病性。方法收集HR家系临床资料,进行生化检测。提取先证者DNA,进行临床全外显子组测序,并针对可疑致病变异对家系所有成员进行PCR扩增,Sanger测序验证。预测变异的致病性及对蛋白质空间结构的影响。结果该家系共3代,先证者是一位26岁女性,先证者母亲、先证者及其儿子和女儿为患者,临床表现为O型腿、鸡胸、低磷血症,骨骼X线检查、生化检测、成纤维细胞生长因子23(fibroblast growth factor 23,FGF23)检测结果提示低血磷性佝偻病。临床全外显子组测序发现PHEX(NM_000444)c.2193dupT的插入移码杂合变异,该变异可导致编码第732位的天冬酰胺变异为终止密码子(p.N732*),从而出现了蛋白质截短。先证者的母亲、儿子及女儿PHEX基因均存在该变异。根据美国医学遗传学与基因组学学会(American College of Medical Genetics and Genomics,ACMG)对变异的分类标准,分级为可能致病性变异。经查阅文献及查找人类基因突变数据库,该变异均未被报道或收录。结论本研究发现了一个PHEX新致病变异,为该家系的临床诊断和治疗及遗传咨询提供了实验依据。
