Age-specific heterogeneity of genetic susceptibility to cardiovascular disease might have opposite outcomes depending on the presence of prediabetes

Examining age-specific heterogeneity of susceptibility to cardiovascular disease is also essential in individuals without prediabetes to determine its relative size and direction compared to those with prediabetes.Of particular interest,age-specific heterogeneity in genetic susceptibility may exhibit opposite directions depending on the presence or absence of prediabetes.

The relation between HLA-DQA1 genes and genetic susceptibility to duodenal ulcer in Wuhan Hans

AIM To study the genetic susceptibility of HLA-DQA1 alleles to duodenal ulcer in Wuhan Hans.METHODS Seventy patients with duodenalulcer and fifty healthy controls were examinedfor HLA-DQA1 genotypes.HLA-DQA1 typing wascarried out by digesting the locus specificpolymerase chain reaction amplified productswith alleles specific restriction enzymes(PCR-RFLP),i.e.,Apal Ⅰ,Bsaj Ⅰ,Hph Ⅰ,Fok Ⅰ,Mbo Ⅱ and Mnl Ⅰ.RESULTS The allele frequencies of DQA1 * 0301and DQA1 * 0102 in patients with duodenal ulcerwere significantly higher and lower respectivelythan those in healthy controls(0.40 vs 0.20,P = 0.003,mcorret = 0.024)and(0.05 vs 0.14,P = 0.012,but Pcorret】0.05),respectively.CONCLUSION DQA1 * 0301 is a susceptiblegene for duodenal ulcer in Wuhan Hans,andthere are immunogenetic differences in HLA-DQA1 locus between duodenal ulcer patients andhealthy controls.

Bladder cancer epidemiology and genetic susceptibility

Bladder cancer is the most common malignancy of the urinary system. The incidence of bladder cancer of men is higher than that of women （approximately 4：1）. Here, we summarize the bladder cancer-related risk factors, in- cluding environmental and genetic factors. In recent years, although the mortality rate induced by bladder cancer has been stable or decreased gradually, the public health effect may be pronounced. The well-established risk fac- tors for bladder cancer are cigarette smoking and occupational exposure. Genetic factors also play important roles in the susceptibility to bladder cancer. A recent study demonstrated that hereditary non-polyposis colorectal cancer is associated with increased risk of bladder cancer. Since 2008, genome-wide association study （GWAS） has been used to identify the susceptibility loci for bladder cancer. Further gene-gene or gene-environment interaction stud- ies need to be conducted to provide more information for the etiology of bladder cancer.

HLA-DQB1~* alleles and genetic susceptibility to type 1 diabetes mellitus

AIM: To determine human leukocyte antigen (HLA)-DQB1 allele association with susceptibility to type 1 diabetes (T1D) and to clinical and laboratory findings. METHODS: This study was conducted on 85 unrelated Egyptian children with T1D recruited consecutively from the Pediatric Diabetes Endocrinology outpatients Clinic; Mansoura University Children’s Hospital, Egypt. Patient mean follow up period was 2.5 years. Patients were subdivided according to level of HbA1c (optimal/suboptimal control < 8.5% and poor control ≥ 8.5%). The control group consisted of 113 unrelated age- and sex-matched healthy subjects without T1D or other autoimmune diseases. Genomic DNA extraction was done for all subjects using a DNA isolation kit. HLA-Class II-DQB1 allele typing was carried out with a polymerase chain reaction-sequence-specific oligonucleotide probe using a INNO-LiPA HLA-DQB1 update kit. RESULTS: Significant differences were detected between Egyptian patients with T1D and control groups in the frequencies of DQB1*02 [44.4% vs 18.6%, corrected P value (Pc) < 0.001] and DQB1*03 (41.2% vs 24.4%, Pc < 0.001). Significant differences were also observed between control groups and T1D patients in the frequencies of DQB1*05 (14.6% vs 7.2%, P = 0.029) and DQB1*06 (34.1% vs 7.2%, P < 0.001). However, after correction for multiple comparisons, the significance was retained for HLA-DQB1*06 (Pc < 0.001) but lost for HLA-DQB1*05. HLA-DQB1*0201, *0202, *030201 were positively associated with T1D (Pc = 0.014, Pc < 0.001, and Pc < 0.001 respectively), while HLA-DQB1*060101 was negatively associated (Pc < 0.001) with the condition. Although the HLA-DQB1 alleles 030101 and 050101 were significantly higher in controls (P = 0.016, P = 0.025 respectively), both of them lost statistical significance after correction of P value. The frequency of the HLA-DQB1 genotypes 02/02, 02/03, and 03/03 was higher in T1D patients, and the frequency of the genotypes 03/06, 05/06, and 06/06 was higher in controls, these differences being statistically significant before correction. After correction, the genotypes 02/02, 02/03 in T1D, and the genotypes 03/06, 06/06 in controls were still significant (Pc = 0.01, Pc < 0.001, Pc < 0.001, and Pc = 0.04, respectively). Non-significant associations were found between the frequency HLA-DQB1 alleles and genotypes in T1D in relation to the grade of diabetic control, Microalbuminuria, age, gender, age of presentation, weight, height, frequency of diabetic ketoacidosis (P = 0.42), serum cholesterol, and fasting and post-prandial level of C-peptide (P = 0.83, P = 0.9, respectively). CONCLUSION: The Current work suggests that HLA-DQB1 alleles *030201, *0202, *0201, and genotypes 02/03, 02/02 may be susceptibility risk factors for development of T1D in Egyptian children, while the HLA-DQB1*060101 allele, and 03/06, 06/06 genotypes may be protective factors. HLA-DQB1 alleles and genotypes do not contribute to microalbuminuria or grade of diabetic control.

Genetics of non-alcoholic fatty liver disease: From susceptibility and nutrient interactions to management

Genetics plays an important role in determining the susceptibility of an individual to develop a disease. Complex, multi factorial diseases of modern day(diabetes, cardiovascular disease, hypertension and obesity) are a result of disparity between the type of food consumed and genes, suggesting that food which does not match the host genes is probably one of the major reasons for developing life style diseases. Non-alcoholic fatty liver is becoming a global epidemic leading to substantial morbidity. While various genotyping approaches such as whole exome sequencing using next generation sequencers and genome wide association studies have identified susceptibility loci for non-alcoholic fatty liver disease(NAFLD) including variants in patatin-like phospholipase domain containing 3 and transmembrane 6 superfamily member 2 genes apart from others; nutrient based studies emphasized on a combination of vitamin D, E and omega-3 fatty acids to manage fatty liver disease. However majority of the studies were conducted independent of each other and very few studies explored the interactions between the genetic susceptibility and nutrient interactions. Identifying such interactions will aid in optimizing the nutrition tailor made to an individual's genetic makeup, thereby aiding in delaying the onset of the disease and its progression. The present topic focuses on studies that identified the genetic susceptibility for NAFLD, nutritional recommendations, and their interactions for better management of NAFLD.

A non-synonymous coding SNP Lys45Glu of mmp3 associated with ESCC genetic susceptibility in population of Henan, China

Objective： The aim of the study was to investigate the association of esophageal squamous cell carcinoma （ESCC） genetic susceptibility with the single nucleotide polymorphism （SNP） rs679620 （-Lys45Glu-） in exon 2 of the romp3 gene, and the population in high incidence region of Henan （China） was selected for exploring the mechanism by case-control study, Methods： The romp3 SNP was genotyped by PCR-RFLP analysis in total 605 cases of Henan population, in which there were 227 ESCC cases and 197 controls of An-yang in Henan plus 181 controls of emigrants in Hubei from Xi-chuan of Henan, China. Results： The statistic data showed that GIG and G/A genotype frequencies of SNP rs679620 were significantly different between the controls of emigrants of Xi-chuan in Hubei and controls of An-yang in Henan （P 〈 0.01） also the ESCC cases of An-yang in Henan （P 〈 0.01）, respectively. Conclusion： This study suggests that the SNP rs679620 （-Lys45Glu-） in exon 2 of the mmp3 gene might be associated with ESCC genetic susceptibility.

Current status of the genetic susceptibility in attenuated adenomatous polyposis

Adenomatous polyposis(AP)is classified according to cumulative adenoma number in classical AP(CAP)and attenuated AP(AAP).Genetic susceptibility is the major risk factor in CAP due to mutations in the known high predisposition genes APC and MUTYH.However,the contribution of genetic susceptibility to AAP is lower and less understood.New predisposition genes have been recently proposed,and some of them have been validated,but their scarcity hinders accurate risk estimations and prevalence calculations.AAP is a heterogeneous condition in terms of severity,clinical features and heritability.Therefore,clinicians do not have strong discriminating criteria for the recommendation of the genetic study of known predisposition genes,and the detection rate is low.Elucidation and knowledge of new AAP high predisposition genes are of great importance to offer accurate genetic counseling to the patient and family members.This review aims to update the genetic knowledge of AAP,and to expound the difficulties involved in the genetic analysis of a highly heterogeneous condition such as AAP.

Regional differences in genetic susceptibility to nonalcoholic liver disease in two distinct Indian ethnicities

AIM To validate the association of variants in PNPLA3(rs2281135) and TM6SF2(rs58542926) genes with ultrasound detected non-alcoholic fatty liver disease(NAFLD).METHODS A total of 503 individuals with and without fatty infiltration were recruited. Fatty infiltration was confirmed based on ultrasound findings. Anthropometric data and blood samples were collected from the study group. DNA was isolated from peripheral blood, quality and quantity was assessed by gel electrophoresis and spectrophotometer respectively. Genotyping of the variants in PNPLA3 and TM6SF2 genes was carried out by employing taqman probes(C_15875080_10 for PNPLA3 and C_8946351_10 for TM6SF2 SNP) on real time PCR(Stepone-Lifetechnologies). Genotype data was tested for deviations from Hardy-Weinbergequilibrium. χ~2 test was used to analyze the statistical significance of the difference in genotype distribution of the studied variants in patients and controls and the strength of association was expressed as odds ratio(95%CI). A two-tailed P value of ≤ 0.05 was considered statistically significant. RESULTS The study group comprised of 503 individuals of which 256 had fatty infiltration and 247 without fatty infiltration and thus formed the patient and control groups respectively. As the patient group could be divided in to two distinct ethnicities(ancestral South Indians-ASI and North-East Indians-NEI), further recruitment of control cohort and association analyses was carried out based on ethnicities. Of the 256 with fatty infiltration 93 were ASI and 163 were NEI and of the 247 controls 138 were ASI and 109 were NEI. As expected, there were significant differences in the anthropometric and other clinical data between the control and the patient groups. However significant differences within the ethnicities were also noted. While rs2281135 in PNPLA3 gene was significantly associated(P = 0.03) with higher risk(odds 1.9, 95%CI: 1.5-3.14, P = 0.03) of NAFLD in NEI ethnicity, rs58542926 in TM6SF2 gene was significantly associated with NAFLD with a 2.7 fold higher risk(odds 2.7, 95%CI: 1.37-5.3, P = 0.0004) of the disease. There were significantly higher proportions of individuals with variants in both the genes in the patient group in both ASI(patients-14/93 and controls-7/138; P = 0.009) and NEI ethnicities(patients-17/163 and controls-7/109; P = 0.01). CONCLUSION Although the study identified distinct genetic susceptibility in the two ethnicities, transheterozygosity of the variants suggests higher risk of NAFLD in individuals with both the variants.

AN EPIDEMIOLOGY AND MOLECULAR GENETIC STUDY ON BREAST CANCER SUSCEPTIBILITY

Objectives. To investigate the genetic susceptibility for breast cancer of Chinese, a hospital-based case-control study, pedigree survey and molecular genetic study were conducted. Methods. Logistic regression model and stratification methods were used in the risk factors analysis. Li-Mantel-Gart and Falconer methods were used to analyze the segregation ratio and heritability. Polymerase chain reaction(PCR) and polyacrylamide gel electrophoresis were used to detect AI, G-banding technique was used to detect the chromosome aberration of peripheral blood lymphocyte. Results. Family history of breast cancer is related to enhanced breast cancer risk significantly, OR is 3905(95%CI=1079～1413), and it widely interacts with other risk factors. Accumulative incidence of breast cancer in first degree relatives is 999%, which is larger than that in second, third degree and non-blood relatives. Segregation ratio is 0021, heritability among first degree relatives is 356±58%. Frequencies of LOH at BRCA1 and BRCA2 loci in sporadic breast cancer are 612% and 577% respectively. In the sibs, both of them show LOH at D13S173 locus, and high frequencies of chromosome aberrations were observed. Conclusions. Genetic susceptibility contributes to breast cancer occurrence of Chinese, and its racial variation may be one of the important reasons for the large difference of incidence between western and eastern countries.

A Genetic Susceptibility Study of Lung Cancer Risk Potentially Associated with Polycyclic Aromatic Hydrocarbon Inhalation Exposure

For lifetime non-smokers, lung cancer risk is mainly associated with inhalation exposure to air pollution. For the Chinese population, indoor air pollution due to solid fuel combustion has been the primary source of inhalation exposure for decades. Polycyclic aromatic hydrocarbons （PAHs） are the by-products of incomplete combustion.

Enumeration,Genetic Characterization and Antimicrobial Susceptibility of Lactobacillus and Streptococcus Isolates from Retail Yoghurt in Beijing,China

Lactic acid bacteria （LAB） are widely used in food industries. Correct identification and safety evaluation of these bacteria at the species even strain level should take considerations into account. In this study, the LAB were recovered from yoghurt and characterized phenotypically and genetically. Fifty-two isolates of LAB from 31 yoghurt samples were cultured and grouped into 6 species including Luctobucillus bulguricus （24 isolates）, Streptococcus thermophilus （15 isolates）, L. ucidophilus （7 isolates）, L. porucusei/cusei （3 isolates）, L. delbrueckii （2 isolates）, and L. fermentum （1 isolate）, based on their Gram-staining, colony morphology and biochemical properties.

Towards system genetics analysis of head and neck squamous cell carcinoma using the mouse model,cellular platform,and clinical human data

Head and neck squamous cell cancer(HNSCC)is a leading global malignancy.Every year,More than 830000 people are diagnosed with HNSCC globally,with more than 430000 fatalities.HNSCC is a deadly diverse malignancy with many tumor locations and biological characteristics.It originates from the squamous epithelium of the oral cavity,oropharynx,nasopharynx,larynx,and hypopharynx.The most frequently impacted regions are the tongue and larynx.Previous investigations have demonstrated the critical role of host genetic susceptibility in the progression of HNSCC.Despite the advances in our knowledge,the improved survival rate of HNSCC patients over the last 40 years has been limited.Failure to identify the molecular origins of development of HNSCC and the genetic basis of the disease and its biological heterogeneity impedes the development of new therapeutic methods.These results indicate a need to identify more genetic factors underlying this complex disease,which can be better used in early detection and prevention strategies.The lack of reliable animal models to investigate the underlying molecular processes is one of the most significant barriers to understanding HNSCC tumors.In this report,we explore and discuss potential research prospects utilizing the Collaborative Cross mouse model and crossing it to mice carrying single or double knockout genes(e.g.Smad 4 and P53 genes)to identify genetic factors affecting the development of this complex disease using genome-wide association studies,epigenetics,micro RNA,long noncoding RNA,lnc RNA,histone modifications,methylation,phosphorylation,and proteomics.

绵羊肺炎支原体的分离鉴定及药物敏感性分析

旨在通过收集陕西榆林市某羊场具有呼吸道病史的绵羊肺组织样本,开展病原微生物的分离鉴定及药敏试验。样本经培养后分离得到支原体疑似菌株,对可疑菌株进行形态学、生理生化鉴定,确定为疑似绵羊肺炎支原体(Mesomycoplasma ovipneumoniae)。通过16S rRNA特异性引物扩增获得361 bp目的基因片段。经测序后BLAST分析发现,分离菌株的基因片段均与绵羊肺炎支原体的Y98参考株(GenBank登录号:NR_025989.1)同源性为97.81%,在遗传进化树同一分支,将其命名为绵羊肺炎支原体SY-1菌株。按照梯度稀释SY-1菌液,采用解脲支原体(CCU)计数方法绘制其生长曲线,结果发现绵羊肺炎支原体的最高菌量可达到10^(9)CUU。药物敏感性试验结果显示,SY-1对多西环素高度敏感,对环丙沙星中度敏感,对头孢曲松、庆大霉素、苯唑西林、恩诺沙星和阿奇霉素均显示为低敏感度,而对利福平不敏感。本试验为羊场呼吸道疾病的防治和临床用药提供了参考。

人HCN4基因重组腺病毒载体的构建和鉴定

目的:构建超极化激活环核苷酸门控通道基因(HCN4)重组腺病毒载体.方法:采用基因工程技术,将HCN4cDNA定向克隆至穿梭载体pAdTrackCMV中,利用胞包装、扩增,CsC1密度梯度超速离心纯化.采用PCR方法对重组腺病毒进行鉴定,利用穿梭质粒中带有绿色荧光蛋白GFP报告基因,对病毒滴度和感染效率进行监测.结果:测序结果证明成功构建了HCN4基因重组腺病毒载体,病毒滴度达2.0×1015pfu/L.结论:应用细菌内同源重组法成功构建了含人HCN4基因的重组腺病毒载体.

Functional gastrointestinal disorders,mental health,genetic susceptibility,and incident chronic kidney disease

Background:Whether functional gastrointestinal disorders(FGIDs)are associated with the long-term risk of chronic kidney disease(CKD)remains unclear.We aimed to investigate the prospective association of FGIDs with CKD and examine whether mental health mediated the association.Methods:About 416,258 participants without a prior CKD diagnosis enrolled in the UK Biobank between 2006 and 2010 were included.Participants with FGIDs(including irritable bowel syndrome[IBS],dyspepsia,and other functional intestinal disorders[FIDs;mainly composed of constipation])were the exposure group,and non-FGID participants were the non-exposure group.The primary outcome was incident CKD,ascertained from hospital admission and death registry records.A Cox proportional hazard regression model was used to investigate the association between FGIDs and CKD,and the mediation analysis was performed to investigate the mediation proportions of mental health.Results:At baseline,33,156(8.0%)participants were diagnosed with FGIDs,including 21,060(5.1%),8262(2.0%),and 6437(1.6%)cases of IBS,dyspepsia,and other FIDs,respectively.During a mean follow-up period of 12.1 years,11,001(2.6%)participants developed CKD.FGIDs were significantly associated with a higher risk of incident CKD compared to the absence of FGIDs(hazard ratio[HR],1.36;95%confidence interval[CI],1.28-1.44).Similar results were observed for IBS(HR,1.27;95%CI,1.17-1.38),dyspepsia(HR,1.30;95%CI,1.17-1.44),and other FIDs(HR,1.60;95%CI,1.43-1.79).Mediation analyses suggested that the mental health score significantly mediated 9.05%of the association of FGIDs with incident CKD and 5.63-13.97%of the associations of FGID subtypes with CKD.Specifically,the positive associations of FGIDs and FGID subtypes with CKD were more pronounced in participants with a high genetic risk of CKD.Conclusion:Participants with FGIDs had a higher risk of incident CKD,which was partly explained by mental health scores and was more pronounced in those with high genetic susceptibility to CKD.

基因多态性与新生儿败血症的遗传易感性研究进展

新生儿败血症是常见的感染性疾病,病情严重,病死率高。其发病机制复杂,缺乏特异性表现,培养阳性率低,早期诊断和个体化治疗仍然是临床医生面临的挑战。对双胞胎的流行病学研究表明,遗传因素与新生儿败血症存在关联。基因多态性与其易感性、病情发展和预后密切相关。该文就新生儿败血症相关的白细胞介素、肿瘤坏死因子、Toll样受体、NOD样受体、CD14、髓系细胞触发受体1、甘露糖结合凝集素和其他免疫蛋白基因多态性进行综述,以期促进该疾病的精准医疗。

华东地区早发胃癌特异性分子标志物的多组学整合分析

目的:寻找早发胃癌特异性标志基因,并探究标志基因遗传变异与华东地区早发胃癌发病风险的关联。方法:研究利用多个胃癌组学研究中东亚人群数据,从拷贝数变异(copy number aberrations,CNAs)和转录组差异表达(differentially expressed genes,DEGs)两个水平整合分析早发胃癌特异的候选基因。通过单因素和多因素Logistic回归评估候选基因表达与早发胃癌的关联,通过亚组分析评估不同亚型之间的关联强度。通过逐步回归筛选早发胃癌标志基因,以构建预测模型。收集华东地区原发性早发胃癌和癌旁组织的临床样本,并使用实时荧光定量PCR验证标志基因的表达差异。另外,使用华东地区1086例原发胃癌和1062例健康对照的全基因组关联芯片数据,通过多因素Logistic回归分别在早发组和晚发组中评估了早发胃癌标志基因区间及其上下游20 kb的单核苷酸多态性位点(single nucleotide polymorphisms,SNPs)与胃癌发病风险的关联,通过假阳性报告概率(false positive report probability,FPRP)检验筛选出显著关联的位点,并利用基因表达数量性状位点(expression quantitative trait loci,eQTL)分析SNPs对基因表达的顺势调控情况。结果:多组学数据整合CNAs和DEGs分析发现6个早发胃癌特异性的候选基因,其中BUD31、POLI和SETBP1的表达水平与胃癌早发相关。分层分析显示,这些关联在Ⅲ/Ⅳ期胃癌和印戒细胞癌中更显著。进一步的逐步回归分析表明,将POLI和SETBP1纳入预测模型显著优于仅纳入胃癌常见突变CDH1的模型(曲线下面积area under curve,AUC_(new)=0.733,AUC_(previous)=0.683,P=0.03)。qRT-PCR结果与前期一致,显示在早发胃癌组织中,POLI和SETBP1表达均显著低于癌旁组织(P_(POLI)=0.049,PSETBP1=0.002)。基因芯片关联研究结果显示,SETBP1 rs7235777 C>A变异与EOGC的风险升高相关(OR_(adj)=1.67,95%CI=1.21~2.13,P_(adj)=0.002,FPRP_(0.1)=0.059),但与晚发胃癌发病风险无显著关联。在1000G CHB和JPT人群中,A等位基因与SETBP1的表达降低相关(P_(trend)=0.059)。结论:综上所述,该研究在东亚人群早发胃癌中鉴定了POLI和SETBP1等潜在的早发胃癌标志基因,其中SETBP1 rs7235777 C->A变异在与华东地区早发胃癌的发病风险升高相关。这些研究结果为识别早发胃癌的高危人群提供了线索。

A Comprehensive Study of the Association between LEPR Gene rs1137101 Variant and Risk of Digestive System Cancers

Objective The leptin receptor,encoded by the LEPR gene,is involved in tumorigenesis.A potential functional variant of LEPR,rs1137101(Gln223Arg),has been extensively investigated for its contribution to the risk of digestive system(DS)cancers,but results remain conflicting rather than conclusive.Here,we performed a case–control study and subsequent meta-analysis to examine the association between rs1137101 and DS cancer risk.Methods A total of 1,727 patients with cancer(gastric/liver/colorectal:460/480/787)and 800 healthy controls were recruited.Genotyping of rs1137101 was conducted using a polymerase chain reactionrestriction fragment length polymorphism(PCR-RFLP)assay and confirmed using Sanger sequencing.Twenty-four eligible studies were included in the meta-analysis.Results After Bonferroni correction,the case–control study revealed that rs1137101 was significantly associated with the risk of liver cancer in the Hubei Chinese population.The meta-analysis suggested that rs1137101 is significantly associated with the risk of overall DS,gastric,and liver cancer in the Chinese population.Conclusion The LEPR rs1137101 variant may be a genetic biomarker for susceptibility to DS cancers(especially liver and gastric cancer)in the Chinese population.

人类白细胞抗原-DQA1、细胞色素P4503A5*3基因多态性与特发性膜性肾病遗传易感性关联性研究

目的:探讨分析人类白细胞抗原(HLA)-DQA1、细胞色素P450(CYP)3A5*3基因多态性与特发性膜性肾病(IMN)遗传易感性的关联性。方法:将IMN患者62例作为研究组,另将健康者62例作为对照组。采用聚合酶链反应(PCR)技术和基因测序技术检测入组患者的HLA-DQA1(rs2187668)、CYP3A5*3(rs776746)基因型,判断各基因型与IMN患者的关系。结果:研究组中HLA-DQA1 rs2187668基因型AA占比高于对照组(P<0.05),基因型GG、AG占比低于对照组(均P<0.05);研究组等位基因A占比高于对照组(P<0.05)。研究组与对照组CYP3A5*3 rs776746不同基因型占比及等位基因占比比较无统计学差异(均P>0.05)。HLA-DQA1 rs2187668AA基因型IMN患者24 h尿蛋白量和血肌酐水平显著高于AG和GG型,肾小球滤过率显著低于AG和GG型(均P<0.05)。结论:HLA-DQA1 rs2187668位点的基因多态性与IMN的发生有关,AA基因型和等位基因A可增加IMN易感性。

SOCS3基因多态性与急性脑梗死遗传易感性及进展的关系

目的:分析急性脑梗死(ACI)病人的SOCS3基因多态性,并探讨其与疾病进展的关系。方法:根据入院时美国国家卒中量表(NIHSS),将310例ACI病人分为轻度和中重度。根据入院后7 d的NIHSS评分将病人进一步分为进展组和非进展组。根据SOCS3基因rs8064821的测序结果,检测到CC、CA和AA三种基因型,分析各基因型的分布差异及其对疾病进展的预测价值。结果:ACI病人SOCS3基因rs8064821位点的基因型分布为CC(161例)、CA(127例)和AA(22例),频率分别为51.93%、40.97%和7.10%。中重度组病人的CC基因型比例低于轻度组,CA、AA基因型比例高于轻度组(P<0.01)。与非进展组相比,进展为神经功能缺损的病人CC基因型比例较低,CA和AA基因型比例较高(P<0.01)。结论:CA和AA基因型是皖北地区ACI病人SOCS3基因rs8064821位点的主要基因型,携带CA和AA基因型的病人更易出现神经功能障碍。