polymorphisms

多态性
  • 文章类型: Journal Article
    遗传变异对达格列净降糖作用的影响尚不清楚。本研究旨在探讨溶质载体家族5成员2(SLC5A2)多态性的影响,尿苷二磷酸葡萄糖醛酸基转移酶1A9(UGT1A9),溶质载体家族2成员2(SLC2A2)和成员4(SLC2A4)对达格列净对2型糖尿病(T2DM)患者的降血糖作用。
    这项前瞻性队列研究共纳入了141例T2DM患者。使用SequenomMassArray平台或Sanger测序选择和基因分型二十九个单核苷酸多态性(SNP)。比较达格列净治疗前后糖化血红蛋白(HbA1c)和空腹血糖(FBG)水平。
    在所选的29个SNP中,27人分析成功。达格列净治疗三个月后,FBG水平显著降低(8.00mmol/L(5.45-10.71)mmol/Lvs6.40mmol/L(5.45-9.20)mmol/L,2型糖尿病患者p=0.003)。然而,HbA1c水平无显著变化(8.10%(6.88-10.00)%vs8.10%(6.83-10.00)%,p=0.452)。协方差分析表明,患者具有rs12471030(CT/TT)的次要等位基因纯合子或杂合子,与具有主要等位基因纯合子的那些相比,rs12988520(AC/CC)或rs2602381(TC/CC)具有更高的FBG水平(分别为p=0.014、p=0.024和p=0.044)。调整基线FBG水平后,年龄,性别,身体质量指数,使用胰岛素和二甲双胍,三个SNP-rs12471030,rs12988520和rs2602381-与达格列净的抗高血糖作用相关.然而,使用严格的显著性阈值(p<0.002,Bonferroni校正),这些选择的SNP均与达格列净治疗后的FBG和HbA1c水平无显著相关。
    调整混杂变量后,SLC5A2,UGT1A9,SLC2A2和SLC2A4基因的多态性与达格列净在中国人群中的抗高血糖作用无关。
    ChiCTR2200059645。
    UNASSIGNED: The influence of genetic variants on the glucose-lowering effects of dapagliflozin remains unclear. This study aims to investigate the impact of polymorphisms in solute carrier family 5 member 2 (SLC5A2), uridine diphosphate glucuronosyltransferase 1A9 (UGT1A9), solute carrier family 2 member 2 (SLC2A2) and member 4 (SLC2A4) on the anti-hyperglycemic effect of dapagliflozin in patients with type-2 diabetes mellitus (T2DM).
    UNASSIGNED: A total of 141 patients with T2DM were included in this prospective cohort study. Twenty-nine single nucleotide polymorphisms (SNPs) were selected and genotyped using the Sequenom MassArray platform or Sanger sequencing. Glycated hemoglobin (HbA1c) and fasting blood glucose (FBG) levels were compared before and after the treatment with dapagliflozin.
    UNASSIGNED: Among the 29 SNPs selected, 27 were successfully analyzed. After three months of dapagliflozin treatment, FBG levels were significantly reduced (8.00 mmol/L (5.45-10.71) mmol/L vs 6.40 mmol/L (5.45-9.20) mmol/L, p = 0.003) in patients with T2DM. However, there was no significant change in HbA1c levels (8.10% (6.88-10.00)% vs 8.10% (6.83-10.00)%, p = 0.452). Analysis of covariance showed that patients with the minor allele homozygote or heterozygote of rs12471030 (CT/TT), rs12988520 (AC/CC) or rs2602381 (TC/CC) had higher FBG levels compared to those with the major allele homozygote (p = 0.014, p = 0.024, and p = 0.044, respectively). After adjusting for baseline FBG level, age, gender, body mass index, use of insulin and use of metformin, three SNPs-rs12471030, rs12988520 and rs2602381-were associated with the anti-hyperglycemic effect of dapagliflozin. However, using a stringent significance threshold (p < 0.002 with Bonferroni correction), none of these selected SNPs were significantly associated with FBG and HbA1c levels after dapagliflozin treatment.
    UNASSIGNED: After adjusting for confounding variables, polymorphisms in SLC5A2, UGT1A9, SLC2A2 and SLC2A4 genes were not associated with the anti-hyperglycemic effect of dapagliflozin in the Chinese population.
    UNASSIGNED: ChiCTR2200059645.
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  • 文章类型: Journal Article
    目的:本研究旨在研究噻嘌呤甲基转移酶(TPMT)和NUDT15基因多态性对中国健康成年人中巯基嘌呤药代动力学的影响。方法:从45名接受硫唑嘌呤治疗的健康成年志愿者中采集血液样本。提取基因组DNA并测序TPMT和NUDT15。采用超高效液相色谱-串联质谱法测定血浆中6-巯基嘌呤(6-MP)的浓度。最后,根据时间-浓度曲线计算药代动力学参数.结果:在45名健康成人志愿者中,检测到两个TPMT等位基因变体和三个NUDT15等位基因变体。总的来说,确定了六种基因型,包括TPMT*1/*1&NUDT15*1/*1、TPMT*1/*1&NUDT15*1/*2、TPMT*1/*1&NUDT15*1/*9、TPMT*1/*1&NUDT15*2/*5、TPMT结果表明,具有TPMT*1/*3&NUDT15*1/*2和TPMT*1/*6&NUDT15*1/*2的志愿者中6-MP的曲线下面积(AUC)比携带野生型(TPMT*1/*1&NUDT15*1/*1)的个体高1.57-1.62倍。与野生型相比,TPMT*1/*6&NUDT15*1/*2的半衰期(T1/2)延长了1.98倍,而TPMT*1/*3和NUDT15*1/*2的T1/2下降了67%。TPMT*1/*3&NUDT15*1/*2的最大浓度(Cmax)显著增加了2.15倍,而相应的清除率(CL/F)显着下降了58.75%。结论:这项研究的结果证实了TPMT和NUDT15的各种基因型可以影响巯基嘌呤的药代动力学的观点,可能为个性化的巯基嘌呤治疗提供基础见解。
    Aims: This study aimed to investigate the impact of genetic polymorphisms of thiopurine methyltransferase (TPMT) and NUDT15 on pharmacokinetics profile of mercaptopurine in healthy adults in China. Methods: Blood samples were obtained from 45 healthy adult volunteers who were administered azathioprine. Genomic DNA was extracted and sequenced for TPMT and NUDT15. The plasma concentrations of 6-mercaptopurine (6-MP) were determined by ultra-performance liquid chromatography-tandem mass spectrometry. Finally, pharmacokinetic parameters were calculated based on the time-concentration curve. Results: Among the 45 healthy adult volunteers enrolled in the study, two TPMT allelic variants and three NUDT15 allelic variants were detected. In total, six genotypes were identified, including TPMT*1/*1&NUDT15*1/*1, TPMT*1/*1&NUDT15*1/*2, TPMT*1/*1&NUDT15*1/*9, TPMT*1/*1&NUDT15*2/*5, TPMT*1/*6&NUDT15*1/*2, and TPMT*1/*3&NUDT15*1/*2. The results indicated that Area Under Curve (AUC) of 6-MP in volunteers with TPMT*1/*3&NUDT15*1/*2 and TPMT*1/*6&NUDT15*1/*2 were 1.57-1.62-fold higher than in individuals carrying the wild type (TPMT*1/*1&NUDT15*1/*1). Compared with wild type, the half-life (T1/2) of TPMT*1/*6&NUDT15*1/*2 was extended by 1.98 times, whereas T1/2 of TPMT*1/*3&NUDT15*1/*2 decreased by 67%. The maximum concentration (Cmax) of TPMT*1/*3&NUDT15*1/*2 increased significantly by 2.15-fold, whereas the corresponding clearance (CL/F) decreased significantly by 58.75%. Conclusion: The findings of this study corroborate the notion that various genotypes of TPMT and NUDT15 can impact the pharmacokinetics of mercaptopurine, potentially offering foundational insights for personalized mercaptopurine therapy.
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  • 文章类型: Journal Article
    冠心病(CHD)的原因之一是遗传因素。在这项研究中,我们探讨了CYP2D7和TCF20基因多态性与中国汉族人群冠心病风险之间的关系。从490例病例和480例对照中选择三个单核苷酸多态性(CYP2D7rs1800754,CYP2D7rs2743461和TCF20rs760648)并进行基因分型。比值比(OR)和95%置信区间(CIs)用于评估CYP2D7和TCF20多态性与CHD风险之间的关联。使用单因素方差分析和Tukey'sHSD分析临床指标与多态性之间的关联。通过进行多因子降维(MDR)获得SNP-SNP相互作用。CYP2D7rs1800754和rs2743461与冠心病风险增加密切相关(等位基因:p=0.014,p=0.031)。分层分析显示CYP2D7rs1800754和rs2743461与男性冠心病风险增加相关,年龄>60岁,BMI≥24,吸烟。Rs1800754也与饮酒相关的冠心病风险增加有关。此外,TCF20rs760648与年龄≤60岁和CAL患者的CHD风险降低相关。CYP2D7rs1800754和rs2743461基因型与UREA水平之间存在显着关联。Cr,和LDL-C;TCF20rs760648基因型和RBC水平。MDR分析表明,在多基因座模型中,三基因座相互作用模型最好。总之,CYP2D7rs1800754和rs2743461多态性与冠心病风险相关。
    One of the causes of coronary heart disease (CHD) is genetic factors. In this study, we explored the relationship between CYP2D7 and TCF20 gene polymorphisms and the risk of CHD in the Han Chinese population. Three single nucleotide polymorphisms (CYP2D7 rs1800754, CYP2D7 rs2743461, and TCF20 rs760648) were selected and genotyped from 490 cases and 480 controls. The odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the association between CYP2D7 and TCF20 polymorphisms and the risk of CHD. The association between clinical indicators and polymorphisms was analyzed using one-way ANOVA and Tukey\'s HSD. The SNP-SNP interactions were obtained by performing multifactor dimensionality reduction (MDR). CYP2D7 rs1800754 and rs2743461 were closely associated with increased risk of CHD (alleles: p = 0.014, p = 0.031). Stratified analysis showed that CYP2D7 rs1800754 and rs2743461 were associated with an increased risk of CHD in men, age > 60 years, BMI ≥ 24, and smoking. Rs1800754 is also associated with an increased risk of CHD associated with alcohol consumption. In addition, TCF20 rs760648 was associated with a reduced risk of CHD in patients aged ≤ 60 years and with CALs. A significant association was found between CYP2D7 rs1800754 and rs2743461 genotypes and levels of UREA, Cr, and LDL-C; TCF20 rs760648 genotypes and levels of RBC. The MDR analysis showed that the three-locus interaction model was the best in the multi-locus model. In conclusion, CYP2D7 rs1800754 and rs2743461 polymorphisms were associated with CHD risk.
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  • 文章类型: Journal Article
    背景:microRNAs(miRNAs)很小,非编码RNA分子,作为癌基因或肿瘤抑制基因。miRNA中的SNP可能会改变与miRNA相关的基因的表达,增强对乳腺癌的易感性。miRNA-146a(rs2910164)和miRNA-196a(rs11614913)均被鉴定,并且与多个种族的乳腺癌风险显着相关。但在巴基斯坦的开伯尔·普赫图赫瓦人口中仍未被开发。
    方法:本研究旨在检查所选SNP与乳腺癌风险的关系。研究队列包括100名乳腺癌患者和100名健康对照。对所有参与者进行DNA提取,然后进行T-ARMSPCR和凝胶电泳。
    结果:结果显示miRNA-146a的风险等位基因(G)与乳腺癌风险增加之间存在强关联(OR=2.04,P=0.0006)。同样,杂合基因型和突变基因型也显示了高风险和与乳腺癌风险显著相关(CG;OR=0.51,9P=0.0001)(GG;OR=3.76,P=0.04).然而,miRNA-196a(rs11614913)的风险等位基因(T)未能显示与乳腺癌风险显著相关(OR=0.92P=0.68).同样,杂合子和突变基因型与乳腺癌风险无显著相关性(CT;OR=0.52,P=0.125(TT;OR=0.88,P=0.84).此外,miRNA-146a(rs2910164)和miRNA-196a(rs11614913)多态性与家族史无显著关联(P=0.34,P=0.77),PR状态(P=0.310,P=0.397),ER状态(P=0.992,P=0.981),节点状态(P=0.86,P=0.90),月经状态(P=0.97,P=0.09)。值得注意的是,miRNA-196a与转移组(P=0.010)和癌症分期(P=0.047)显著相关。
    结论:结论:这项研究强调了miRNA-146a(rs2910164)多态性与乳腺癌风险的关联,但提示miRNA-196a(rs11614913)与乳腺癌风险无显著关联.然而,这些发现需要通过更大的数据集来证实,以获得更准确的结果.
    BACKGROUND: microRNAs (miRNAs) are small, noncoding RNA molecules, functioning either as oncogenes or tumor suppressor genes. SNPs in miRNAs might modify the expression of genes associated with miRNAs, enhancing susceptibility to breast cancer. Both miRNA-146a (rs2910164) and miRNA-196a (rs11614913) are identified and significantly associated with breast cancer risk in several ethnicities, but remains unexplored in Khyber Pakhtunkhwa population of Pakistan.
    METHODS: This study was aimed to check the relation of selected SNPs with breast cancer risk. The research cohort included 100 breast cancer patients and 100 healthy controls. All the participants were subjected for DNA extraction followed by T-ARMS PCR and gel electrophoresis.
    RESULTS: The results revealed a strong association between risk allele (G) of miRNA-146a and increased risk of breast cancer (OR = 2.04, P = 0.0006). Similarly, heterozygous and mutant genotypes also indicated high risk and significant association with breast cancer risk (CG; OR = 0.51, 9 P = 0.0001) (GG; OR = 3.76, P = 0.04). However, risk allele (T) of miRNA-196a (rs11614913) failed to exhibit significant association with breast cancer risk (OR = 0.92 P = 0.68). Similarly, the heterozygous and mutant genotype did not show significant association with breast cancer risk (CT; OR = 0.52, P = 0.125 (TT; OR = 0.88, P = 0.84). Furthermore, miRNA-146a (rs2910164) and miRNA-196a (rs11614913) polymorphisms exhibited non-significant associations with family history (P = 0.34, P = 0.77), PR status (P = 0.310, P = 0.397), ER status (P = 0.992, P = 0.981), nodal status (P = 0.86, P = 0.90), and menstrual status (P = 0.97, P = 0.09). Notably, miRNA-196a showed a significant association with the metastasis group (P = 0.010) and cancer stages (P = 0.047).
    CONCLUSIONS: In conclusion, this study highlights the association of miRNA-146a (rs2910164) polymorphism with breast cancer risk but suggested non-significant association of miRNA-196a (rs11614913) with breast cancer risk. However, these findings need to be confirmed through larger data set for more accurate result.
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  • 文章类型: Journal Article
    核苷酸切除修复(NER)在维持基因组稳定性中起着至关重要的作用,NER基因多态性对肝母细胞瘤易感性的影响仍在研究中。本研究旨在评估中国东部汉族儿童NER基因多态性与肝母细胞瘤发病风险的关系。
    在这项五中心病例对照研究中,我们纳入了来自华东地区的966例受试者(193例肝母细胞瘤患者和773例健康对照).采用TaqMan方法对NER通路基因中19个单核苷酸多态性(SNPs)进行基因分型,包括ERCC1、XPA、XPC,XPD,XPF,XPG然后,进行多因素logistic回归分析,利用比值比(OR)和95%置信区间(95%CIs)评估关联强度.
    三个SNP与肝母细胞瘤风险相关。根据显性模型,XPCrs2229090和XPDrs3810366显著增加了肝母细胞瘤的风险(校正OR=1.49,95%CI=1.07-2.08,P=0.019;校正OR=1.66,95%CI=1.12-2.45,P=0.012)。然而,XPDrs238406在显性模型下显著降低了肝母细胞瘤的风险(校正OR=0.68,95%CI=0.49-0.95;P=0.024)。分层分析表明,这些显着的关联在某些亚组中更为突出。此外,通过在线表达数量性状基因座(eQTL)和剪接数量性状基因座(sQTL)分析,有证据表明这些重要的SNP具有功能意义。
    总之,NER通路基因多态性(XPCrs2229090、XPDrs3810366和XPDrs238406)与肝母细胞瘤风险显著相关,需要进一步的研究来验证这些发现。
    UNASSIGNED: Nucleotide excision repair (NER) plays a vital role in maintaining genome stability, and the effect of NER gene polymorphisms on hepatoblastoma susceptibility is still under investigation. This study aimed to evaluate the relationship between NER gene polymorphisms and the risk of hepatoblastoma in Eastern Chinese Han children.
    UNASSIGNED: In this five-center case-control study, we enrolled 966 subjects from East China (193 hepatoblastoma patients and 773 healthy controls). The TaqMan method was used to genotype 19 single nucleotide polymorphisms (SNPs) in NER pathway genes, including ERCC1, XPA, XPC, XPD, XPF, and XPG. Then, multivariate logistic regression analysis was performed, and odds ratios (ORs) and 95% confidence intervals (95% CIs) were utilized to assess the strength of associations.
    UNASSIGNED: Three SNPs were related to hepatoblastoma risk. XPC rs2229090 and XPD rs3810366 significantly contributed to hepatoblastoma risk according to the dominant model (adjusted OR=1.49, 95% CI=1.07-2.08, P=0.019; adjusted OR=1.66, 95% CI=1.12-2.45, P=0.012, respectively). However, XPD rs238406 conferred a significantly decreased risk of hepatoblastoma under the dominant model (adjusted OR=0.68, 95% CI=0.49-0.95; P=0.024). Stratified analysis demonstrated that these significant associations were more prominent in certain subgroups. Moreover, there was evidence of functional implications of these significant SNPs suggested by online expression quantitative trait loci (eQTLs) and splicing quantitative trait loci (sQTLs) analysis.
    UNASSIGNED: In summary, NER pathway gene polymorphisms (XPC rs2229090, XPD rs3810366, and XPD rs238406) are significantly associated with hepatoblastoma risk, and further research is required to verify these findings.
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  • 文章类型: Journal Article
    BCL2相互作用蛋白3样(BNIP3L)蛋白参与多发性骨髓瘤(MM)的发展和进展。本研究旨在探讨BNIP3L单核苷酸多态性(SNP)与MM之间的联系。
    SNaPshot用于检查入组受试者中BNIP3L基因的六个SNP基因座。探讨这些位点与MM易感性及预后的关系。生存分析用于评估不同因素对患者生存的影响。
    rs2874670AA基因型和A等位基因与MM风险增加相关(P<0.05)。CCACAC单倍型在MM中具有较高的频率,CCGCAC在正常患者中出现频率较高(均P<0.05)。R-ISSⅠ期和Ⅱ期患者的生存率高于Ⅲ期患者(P<0.05)。患者,接受化疗后进行自体干细胞移植,生存时间长于单纯化疗患者(P<0.05)。低水平的LDH和β2-MG与较好的生存率相关(P<0.05)。Cox回归确定LDH水平,β2-MG水平,R-ISS分期是MM死亡的危险因素。Mann-WhitneyU检验发现不同BNIP3Lrs2874670基因型的MM患者经BD化疗后生存时间差异有统计学意义(P<0.05)。
    据我们所知,这是中国首次发现BNIP3Lrs2874670可增加MM易感性的研究。不同BNIP3Lrs2874670基因型可能影响接受BD化疗的MM患者的预后。
    UNASSIGNED: The BCL2 interacting protein 3-like (BNIP3L) protein is involved in multiple myeloma (MM) development and progression. This study aims to explore the connection between BNIP3L single-nucleotide polymorphisms (SNPs) and MM.
    UNASSIGNED: SNaPshot was used to examine six SNP loci of the BNIP3L gene in enrolled subjects. The relationship between these loci and MM susceptibility and prognosis was explored. Survival analysis was used to evaluate the impact of different factors on patient survival.
    UNASSIGNED: The rs2874670 AA genotype and A allele were associated with increased MM risk (P < 0.05). The CCACAC haplotype had a higher frequency in MM, while CCGCAC had a higher frequency in normal patients (all P < 0.05). Patients with R-ISS stage I and II had higher survival rates than those with stage III (P < 0.05). Patients, who received chemotherapy followed by autologous stem cell transplantation, had longer survival time than those who only received chemotherapy (P < 0.05). Low levels of LDH and β2-MG were associated with better survival rates (P < 0.05). Cox regression identified that LDH levels, β2-MG levels, and R-ISS staging were the risk factors for the death of MM. Mann-Whitney U test found a significant difference in survival time between MM patients with different BNIP3L rs2874670 genotypes after BD chemotherapy (P < 0.05).
    UNASSIGNED: To our knowledge, this is the first study to find that BNIP3L rs2874670 could increase MM susceptibility in China. Different BNIP3L rs2874670 genotypes may affect the prognosis of MM patients receiving BD chemotherapy.
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  • 文章类型: Journal Article
    背景:载脂蛋白E(APOE)基因多态性与多种代谢紊乱的发病机制有关。包括2型糖尿病(T2DM)。2型糖尿病(T2DM)是全球范围内的主要公共卫生问题,包括在巴基斯坦。与T2DM相关的心血管问题对个人和社会都有重大影响。这项研究的目的是调查载脂蛋白E(ApoE)基因型之间的关系,血脂异常,和心血管并发症,如缺血性心脏病(IHD)和中风。方法:本研究对260名受试者进行,分为对照组和糖尿病患者。糖尿病患者进一步分为四个亚组,例如D1:没有心血管问题的糖尿病患者,D2:患有心脏病的糖尿病患者,D3:中风的糖尿病患者,D4:患有心脏病和中风的糖尿病患者。人体测量参数(年龄,BMI)和危险因素(吸烟,糖尿病持续时间,高血压)在所有组中进行评估。血清TC水平,TG,LDL,HDL,VLDL,肌酐,BSF,和HbA1c也被测量。使用PCR-RFLP确定载脂蛋白E基因多态性。结果:高血压,BMI,血脂异常被定义为总胆固醇水平升高,甘油三酯,LDL,VLDL,和HDL水平降低。2型糖尿病患者未控制的高血糖(空腹血糖和糖化血红蛋白升高)与IHD和卒中等血管并发症有关。高血压在79.3%的人口中普遍存在。2期高血压在所有年龄组中更为普遍。还注意到,巴基斯坦人口中的常见基因型是3/3、4/4、2/3和3/4。基因型3/4和2/3的频率在患有中风的糖尿病患者中最高。基因型3/3经常出现在患有IHD/中风的糖尿病患者和患有这两种并发症的患者中。然而,基因型4/4最常见于患有IHD的糖尿病患者。结论:BMI,高血压,高血糖症,动脉粥样硬化,血脂异常与2型糖尿病的心血管并发症有关。载脂蛋白E基因多态性通过影响血脂谱与糖尿病患者心血管疾病相关。
    Background: Apolipoprotein E (APOE) gene polymorphism has been implicated in the pathogenesis of various metabolic disorders, including type 2 diabetes mellitus (T2DM). Type 2 diabetes mellitus (T2DM) is a major public health concern worldwide, including in Pakistan. Cardiovascular problems linked with T2DM have a significant impact on individuals and society. The goal of this study is to investigate the relationship between Apolipoprotein E (ApoE) genotypes, dyslipidemia, and cardiovascular complications such as ischemic heart disease (IHD) and stroke. Methods: This study was carried out on 260 subjects divided into controls and diabetics. The diabetics were further divided into four subgroups such as D1: diabetics without cardiovascular issues, D2: diabetics with heart disease, D3: diabetics with stroke, and D4: diabetics with both heart disease and stroke. Anthropometric parameters (age, BMI) and risk factors (smoking, diabetes duration, hypertension) were assessed in all groups. Serum levels of TC, TG, LDL, HDL, VLDL, creatinine, BSF, and HbA1c were also measured. Apolipoprotein E gene polymorphism was determined using PCR-RFLP. Results: Hypertension, BMI, and dyslipidemia are defined as elevated levels of total cholesterol, triglycerides, LDL, and VLDL, and decreased levels of HDL. Uncontrolled hyperglycemia (elevated fasting blood sugar and glycated hemoglobin) in T2DM was linked to vascular complications such as IHD and stroke. Hypertension was prevalent in 79.3% of the population. Stage 2 hypertension was more prevalent in all age groups. It was also noted that common genotypes in the Pakistani population are 3/3, 4/4, 2/3, and 3/4. The frequency of genotypes 3/4 and 2/3 is highest in diabetics with stroke. Genotype 3/3 is present frequently in diabetics with IHD/stroke and patients with both these complications. However, genotype 4/4 is most frequently found in diabetics with IHD. Conclusions: It is concluded that BMI, hypertension, hyperglycemia, atherosclerosis, and dyslipidemia are linked with cardiovascular complications of type 2 diabetes. Apolipoprotein E gene polymorphism is associated with cardiovascular disease in patients with diabetes by affecting the lipid profile.
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  • 文章类型: Journal Article
    肥胖正在成为一种世界性的流行病。食品脂质的界面工程有望抑制饮食引起的肥胖,而不会损害高脂饮食带来的饮食享受。不幸的是,这一战略尚未实现。筛选不同的植物蛋白后,菠萝蛋白酶和木瓜蛋白酶被发现形成蠕虫状和长直蛋白原纤维,分别。在菠萝蛋白酶的纤维化中证明了长直的淀粉样原纤维向蠕虫样纤维的转化。使用水包油高内相乳液(HIPEs)作为概念证明,菠萝蛋白酶原纤维比木瓜蛋白酶原纤维显示出明显更强的界面稳定能力,在现实世界的高脂肪食品如蛋黄酱配方中具有很高的应用潜力。与木瓜蛋白酶原纤维相比,通过菠萝蛋白酶原纤维稳定的HIPEs的口服给药导致显著更高的粪便脂质含量和显著降低与肠道脂质吸收和转运相关的基因的表达水平,包括CD36,FATP-2,FATP-4和APOA-4,在干预肠道菌群方面没有差异。因此,小肠中的脂质吸收大大减少,等离子体中乳糜微粒明显较小,降低血清甘油三酯,控制能量和脂质代谢,以及抑制脂肪膨胀和超重,在用菠萝蛋白酶原纤维而不是木瓜蛋白酶原纤维稳定的HIPEs管饲组中观察到。此外,用相同的卡路里,用菠萝蛋白酶原纤维乳化的HIPEs代替小鼠标准高脂饲料中的所有脂肪,对预防高脂饮食(HFD)引起的肥胖,包括减轻脂肪扩张和炎症以及脂肪肝,还通过抑制脂质在肠道中的吸收和运输。效果归因于由蠕虫状纤维形成的比长直纤维更紧密和弹性的界面层引起的脂解抑制,它们对胃环境有抵抗力,并被消化中的胆汁酸替代。因此,我们提供了一种有吸引力的通用策略,通过界面处的蛋白原纤维多态性,减少肠腔吸收的游离脂肪酸(FAs)的供应,从而控制肥胖.
    Obesity is becoming a worldwide pandemic. Interfacial engineering of food lipid is expected to inhibit diet-induced obesity without damage to the eating enjoyment brought by high-fat diets. Unfortunately, this strategy has not been achieved yet. After screening different plant proteins, bromelain and papain were found to form wormlike and long-straight protein fibrils, respectively. The conversion of long-straight amyloid-like fibrils to wormlike fibrils was demonstrated in the fibrillation of bromelain. Using oil-in-water high internal phase emulsions (HIPEs) as a proof of concept, bromelain fibrils showed dramatically stronger interfacial stabilization capabilities than papain fibrils with high application potentials in the real-world formulation of high-fat food products such as mayonnaise. Compared with papain fibrils, oral administration of HIPEs stabilized by bromelain fibrils resulted in substantially higher fecal lipid contents and significantly decreased expression levels of the genes related to lipid absorption and transport in the intestine, including CD36, FATP-2, FATP-4, and APOA-4, without a difference in intervening gut microbiota. Consequently, dramatically less lipid absorption in the small intestine, markedly smaller chylomicron particles in the plasma, lower serum triglycerides, and controlled energy and lipid metabolism, as well as the inhibition of adipose expansion and overweight, were observed in the group with gavage of HIPEs stabilized by the bromelain fibrils rather than the papain fibrils. Furthermore, with the same calorie, substitution of all the fat in the standard high-fat feed of mice with the HIPEs emulsified by the bromelain fibrils showed a significantly stronger effect than the ones prepared by the papain fibrils on preventing high-fat-diet (HFD)-induced obesity including alleviation of adipose expansion and inflammation as well as fatty liver, also via inhibiting the absorption and transport of lipid in the intestine. The effect is ascribed to the suppressed lipolysis caused by a more compact and elastic interfacial layer formed by the wormlike fibrils than that of the long-straight fibrils, which are resistant to gastric environments and replacement by bile acids in digestion. Therefore, we provide an appealing and general strategy for controlling obesity by reducing the supply of free fatty acids (FAs) for absorption in the enteric lumen through protein fibril polymorphisms at the interface.
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  • 文章类型: Journal Article
    目的:这项研究对非小细胞肺癌(NSCLC)的免疫治疗效果和反应进行了多指标综合评估。
    方法:纳入45例接受免疫治疗的表皮生长因子受体(EGFR)/间变性淋巴瘤激酶(ALK)野生型晚期NSCLC患者。采用免疫组织化学方法检测程序性死亡配体1(PD-L1)与X线交叉互补蛋白1(XRCC1)和切除修复交叉互补蛋白1(ERCC1)在肿瘤组织中的表达水平。流式细胞术用于测量治疗前后外周血中T细胞亚群的水平。采用PCR-RELP方法评价外周血XRCC1和ERCC1基因多态性。根据治疗效果,患者被评估为完全缓解(CR),部分响应(PR),和稳定的疾病(SD)被归类为免疫反应组,评估为进行性疾病(PD)的患者被归类为免疫无反应组。PD-L1蛋白表达的相关性,XRCC1和ERCC1蛋白表达,基因多态性,T细胞亚群水平,并对治疗效果进行分析。
    结果:PD-L1表达阳性的患者的治疗效果优于PD-L1表达阴性的患者(P<0.05)。治疗后,免疫应答组外周血CD3+、CD4+细胞水平和Thl/Th2细胞水平高于免疫无反应组,CD8+T细胞水平低于免疫无反应组(P<0.05)。在免疫反应组的患者中,PD-L1表达阳性的患者外周血CD3+和CD4+细胞水平高于PD-L1表达阴性的患者,CD8+T细胞水平低于PD-L1表达阴性的患者(P<0.05)。在XRCC1基因中,免疫应答组患者携带Arg/Trp+Trp/Trp基因型的比例高于免疫无应答组患者(P<0.05)。在ERCC1基因中,免疫应答组携带C/T+T/T基因型的患者比例高于免疫无应答组(P<0.05)。免疫无反应组患者的XRCC1和ERCC1阳性表达率均高于免疫反应组(P<0.05)。
    结论:PD-L1蛋白表达,XRCC1和ERCC1蛋白表达,和基因多态性与EGFR/ALK野生型晚期NSCLC患者的免疫治疗结果相关,并可能成为预测EGFR/ALK野生型晚期NSCLC患者免疫治疗结果的生物学指标。
    OBJECTIVE: This research conducted multi-index comprehensive evaluations of the immunotherapeutic efficacy and response in non-small cell lung cancer (NSCLC).
    METHODS: Forty-five patients with epidermal growth factor receptor (EGFR)/anaplastic lymphoma kinase (ALK) wild-type advanced NSCLC who received immunotherapy were included. Immunohistochemistry was adopted to detect the expression levels of programmed death ligand 1 (PD-L1) with X-ray cross-complementing protein 1 (XRCC1) and excision repair cross-complementing group 1 (ERCC1) proteins in tumor tissues. Flow cytometry was utilized to measure the levels of T-cell subsets in peripheral blood before and after treatment. PCR-RELP method was employed to evaluate XRCC1 and ERCC1 gene polymorphisms in peripheral blood. According to the treatment effect, patients evaluated as complete response (CR), partial response (PR), and stable disease (SD) were categorized into the immune response group, and patients evaluated as progressive disease (PD) were categorized into the immune unresponsive group. The correlation between PD-L1 protein expression, XRCC1 and ERCC1 protein expression, gene polymorphisms, T-cell subpopulation levels, and treatment efficacy was analyzed.
    RESULTS: The therapeutic efficacy of patients with positive PD-L1 expression was better than that of patients with negative PD-L1 expression (P < 0.05). After treatment, peripheral blood CD3+ and CD4+ cell levels and Thl/Th2 cell levels were higher and CD8+ T cells were lower in the immune response group than in the immune unresponsive group (P < 0.05). Among the patients in the immune response group, peripheral blood CD3+ and CD4+ cell levels were higher and CD8+ T cells were lower in patients with positive PD-L1 expression than in patients with negative PD-L1 expression (P < 0.05). In the XRCC1 gene, the proportion of patients in the immune response group carrying the Arg/Trp + Trp/Trp genotype was higher than that of patients in the immune unresponsive group (P < 0.05). In the ERCC1 gene, the proportion of patients in the immune response group carrying the C/T + T/T genotype was higher than that of patients in the immune unresponsive group (P < 0.05). The positive expression rates of XRCC1 and ERCC1 in patients in the immune unresponsive group were higher than those in the immune response group (P < 0.05).
    CONCLUSIONS: PD-L1 protein expression, XRCC1 and ERCC1 protein expression, and gene polymorphisms are associated with immunotherapy outcome in EGFR/ALK wild-type advanced NSCLC patients, and may be biological indicators for predicting immunotherapy outcome in EGFR/ALK wild-type advanced NSCLC patients.
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  • 文章类型: Journal Article
    目的:免疫炎症反应在缺血性卒中的病理生理过程中起重要作用。叉头盒P3(FOXP3)是免疫细胞的主要调控因子。FOXP3基因多态性可能与IS的易感性有关。本研究旨在探讨FOXP3基因多态性(rs3761548和rs2232365)与中国汉族人群IS易感性的关系。
    方法:采用聚合酶链反应和Sanger测序法检测FOXP3基因rs3761548和rs222365多态性的基因型。
    结果:吸烟,糖尿病(DM),和HBP历史,IS患者的TG和HDL-C水平高于对照组.与rs3761548GG基因型相比,GT基因型(OR=1.573,95CI=1.030-2.402;调整后:OR=1.736,95CI=1.070-2.817)和GTTTvs.rs3761548多态性的GG模型(OR=1.581,95CI=1.0449-2.382;校正:OR=1.720,95CI=1.074-2.755)与吸烟前后缺血性卒中易感性升高显着相关,HBP,DM,TG和HDL-Crs2232365多态性的隐性模型可以提高缺血性卒中的易感性(OR=11.962,95CI=1.144-3.3363;校正:OR=1.876,95CI=1.016-3.463)。此外,rs3761548显性模型(OR=2.757,95CI=1.379-5.552;校正:OR=2.601,95CI=1.268-5.336)和rs222365隐性模型(OR=3.103,95CI=1.463-6.583;校正:OR=3.545,95CI=1.600-7.855)与缺血性卒中严重程度相关。
    结论:FOXP3基因rs3761548和rs2232365多态性是IS易感性和严重程度的危险因素。
    Immunoinflammatory response plays an important role in the pathophysiological process of ischemic stroke (IS). Forkhead box P3 (FOXP3) is a master regulator for immune cells. Polymorphisms of FOXP3 gene might contribute to the susceptibility of IS. This study aimed to explore the association between FOXP3 gene polymorphisms (rs3761548 and rs2232365) and IS susceptibility in the Chinese Han population.
    Polymerase chain reaction and Sanger sequencing were used to detect the genotype of FOXP3 gene rs3761548 and rs2232365 polymorphisms.
    Smoking, diabetes mellitus (DM), and HBP histories, higher TG and HDL-C levels were more frequently observed in IS patients than in controls. In comparison with rs3761548 GG genotype, GT genotype (OR = 1.573, 95 %CI = 1.030-2.402; adjusted: OR = 1.736, 95 %CI = 1.070-2.817) and GT + TT vs. GG model (OR = 1.581, 95 %CI = 1.0449-2.382; adjusted: OR = 1.720, 95 %CI = 1.074-2.755) of rs3761548 polymorphism was significantly correlated with elevated ischemic stroke susceptibility both at prior and after adjusted by smoking, HBP, DM, TG and HDL-C. Recessive model of rs2232365 polymorphism could elevate the susceptibility of ischemic stroke (OR = 11.962, 95 %CI = 1.144-3.3363; adjusted: OR = 1.876, 95 %CI = 1.016-3.463). Besides, rs3761548 dominant model (OR = 2.757, 95 %CI = 1.379-5.552; adjusted: OR = 2.601, 95 %CI = 1.268-5.336) and rs2232365 recessive model (OR = 3.103, 95 %CI = 1.463-6.583; adjusted: OR = 3.545, 95 %CI = 1.600-7.855) were related to the severity of ischemic stroke.
    FOXP3 gene rs3761548 and rs2232365 polymorphisms were risk factors for susceptibility and severity of IS.
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