Expression

表达式
  • 文章类型: Journal Article
    在本研究中,我们评估了DEFB1基因多态性是否与冠状动脉疾病(CAD)相关.
    两个rs11362A/G,通过5'核酸外切酶TaqMan测定法对219名CAD患者和522名对照个体的DEFB1基因的rs1800972C/G基因多态性进行了基因分型。
    在CAD患者和健康对照中rs1800972C/G多态性的分布相似。尽管如此,在共同支配下,支配,隐性,和添加剂模型,rs11362A/G多态性的AA基因型与发生CAD的风险相关(OR=1.89pCCo-Dom=0.041,OR=1.46,pCDom=0.034,OR=1.69,pCRes=0.039,OR=1.37,pCDadd=0.012).此外,连锁不平衡显示\'AG\'单倍型与冠心病发病风险增加相关(OR=1.23,p=0.042).根据,利用基因型-组织表达(GTEx)联盟数据,rs11362AA基因型与组织中β-防御素-1的低mRNA表达有关,比如动脉主动脉,冠状动脉,心脏左心室,和心脏心耳(p<0.001)。
    这项研究表明,DEFB1基因的rs11362A/G多态性与发生CAD的风险有关,并且在心脏组织中β-防御素-1的RNA表达较低。
    UNASSIGNED: In the present study, we evaluated whether DEFB1 gene polymorphisms are associated with the presence of coronary artery disease (CAD).
    UNASSIGNED: Two rs11362 A/G, and rs1800972 C/G gene polymorphisms of DEFB1 gene were genotyped by 5\'exonuclease TaqMan assays in 219 patients with CAD and 522 control individuals.
    UNASSIGNED: The distribution of rs1800972 C/G polymorphisms was similar in patients with CAD and healthy controls. Nonetheless, under the co-dominant, dominant, recessive, and additive models, the AA genotype of the rs11362 A/G polymorphism was associated with the risk of developing CAD (OR = 1.89 pCCo-Dom = 0.041, OR = 1.46, pCDom = 0.034, OR = 1.69, pCRes = 0.039, and OR = 1.37, pCAdd = 0.012, respectively). In addition, the linkage disequilibrium showed that the \'AG\' haplotype was associated with an increased risk of developing CAD (OR = 1.23, p = 0.042). According, with the Genotype-Tissue Expression (GTEx) consortium data, the rs11362 AA genotype is associated with a low mRNA expression of the β-defensin-1 in tissues, such as artery aorta, artery coronary, heart left ventricle, and heart atrial appendage (p < 0.001).
    UNASSIGNED: This study demonstrates that rs11362 A/G polymorphism of the DEFB1 gene is involved in the risk of developing CAD, and with a low RNA expression of the β-defensin-1 in heart tissue.
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  • 文章类型: Journal Article
    背景虽然膝骨关节炎(KOA)和骨质疏松症(OP)表现出不同的病理生理,他们有许多相似之处。这些健康状况常见于老年人,尤其是在女性中。本研究的目的是探讨微小RNA(miRNA)122-5p(miR-122-5p)在受KOA和OP影响的人群中的表达。主要目的是确定诊断生物标志物和潜在的治疗目标,这可以帮助开发个性化的治疗方法。方法作为研究的一部分,总共从参与者那里收集了268份血清样本,他们分为四组:KOA,OP,KOA和OP,和控制,每组67名受试者。使用QIAGEN的miRNeasy血清/血浆试剂盒(Hilden,德国)。使用实时定量聚合酶链反应检查各组中miR-122-5p的表达。结果miR-122-5p在三组中的表达(KOA,OP,和常见组的KOA和OP)显着上调,在这两种疾病的组中,倍数变化值要高得多。结论这些结果可能有助于识别处于危险中的病例,早期诊断,和发展,并且也可能有助于在患有KOA和OP的受试者中发展治疗靶标。
    Background Although knee osteoarthritis (KOA) and osteoporosis (OP) manifest distinct pathophysiologies, they share numerous similarities. These health conditions are commonly found in older individuals, particularly among women. The objective of this study is to explore the expression of micro-RNA (miRNA) 122-5p (miR-122-5p) in people affected by both KOA and OP. The main aim is to identify diagnostic biomarkers and potential therapeutic targets, which could help develop personalized treatment approaches. Methods As part of the study, a total of 268 serum samples were collected from the participants, who were divided into four groups: KOA, OP, KOA and OP, and controls, with 67 subjects per group. The miRNA species-containing total RNA was isolated from the serum samples using an miRNeasy serum/plasma kit by QIAGEN (Hilden, Germany). The expression of miR-122-5p was examined in each group using real-time quantitative polymerase chain reaction. Results Expression of miR-122-5p in all three groups (KOA, OP, and common group of KOA and OP) was significantly upregulated, and the fold change value was much higher in the group having both diseases. Conclusions These results might contribute to the identification of cases at risk, early diagnosis, and development, and might also contribute to the development of therapeutic targets in subjects having both KOA and OP.
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  • 文章类型: Journal Article
    了解酒精代谢及其调节的潜在机制,包括酒精代谢酶多态性的影响,对胎儿酒精谱系障碍的研究至关重要。这项研究的目的是在71名儿童的队列中鉴定关键酒精代谢酶的特定单核苷酸多态性。包括胎儿酒精综合症患儿,产前暴露于乙醇但没有胎儿酒精谱系障碍的儿童,和控制。我们假设某些与酒精代谢相关的遗传变异可能在这些人群中是固定的,给他们一个特定的酒精代谢概况。此外,这些酶的某些同工型的差异决定了它们对酒精的亲和力,也会影响视黄酸的代谢,这是中枢神经系统正常发育的关键。我们的结果表明,没有胎儿酒精谱系障碍性状的产前暴露于乙醇的儿童具有较高的ADH1B*3和ADH1C*1等位基因频率,这与酒精代谢增加有关,因此是孕妇饮酒后胎儿对循环酒精的保护因素,与具有对酒精亲和力较低的等位基因的FAS儿童相比。这项研究还揭示了在FAS人群中存在ADH4变体,该变体与致畸剂弱结合,允许增加毒性剂的循环并直接诱导胎儿发育异常。然而,两组均显示与维甲酸途径相关的基因表达失调,如视黄酸受体和类视黄醇X受体,参与开发,再生,和神经系统的维护。这些发现强调了理解酒精代谢之间相互作用的重要性。视黄酸通路和遗传因素在胎儿酒精综合征发生发展中的作用。
    Understanding the mechanisms underlying alcohol metabolism and its regulation, including the effect of polymorphisms in alcohol-metabolizing enzymes, is crucial for research on Fetal Alcohol Spectrum Disorders. The aim of this study was to identify specific single nucleotide polymorphisms in key alcohol-metabolizing enzymes in a cohort of 71 children, including children with fetal alcohol syndrome, children prenatally exposed to ethanol but without fetal alcohol spectrum disorder, and controls. We hypothesized that certain genetic variants related to alcohol metabolism may be fixed in these populations, giving them a particular alcohol metabolism profile. In addition, the difference in certain isoforms of these enzymes determines their affinity for alcohol, which also affects the metabolism of retinoic acid, which is key to the proper development of the central nervous system. Our results showed that children prenatally exposed to ethanol without fetal alcohol spectrum disorder traits had a higher frequency of the ADH1B*3 and ADH1C*1 alleles, which are associated with increased alcohol metabolism and therefore a protective factor against circulating alcohol in the fetus after maternal drinking, compared to FAS children who had an allele with a lower affinity for alcohol. This study also revealed the presence of an ADH4 variant in the FAS population that binds weakly to the teratogen, allowing increased circulation of the toxic agent and direct induction of developmental abnormalities in the fetus. However, both groups showed dysregulation in the expression of genes related to the retinoic acid pathway, such as retinoic acid receptor and retinoid X receptor, which are involved in the development, regeneration, and maintenance of the nervous system. These findings highlight the importance of understanding the interplay between alcohol metabolism, the retinoic acid pathway and genetic factors in the development of fetal alcohol syndrome.
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  • 文章类型: Journal Article
    背景:已在与炎症反应相关的各种疾病中研究了制瘤素M(OSM)的表达,但其在急性缺血性卒中(AIS)中的应用仍有待探索。目的:本研究的目的是评估临床上血清OSM表达与AIS各个方面之间的相关性。
    方法:于2020年10月至2021年3月在重庆医科大学附属第一医院进行单中心病例对照研究。总共134例患者被纳入AIS组,34例健康个体被纳入对照组。进行体格检查并收集静脉血样本。采用酶联免疫吸附试验(ELISA)测定血清OSM。Org10172在急性中风治疗(TOAST)分类中的试验,美国国立卫生研究院卒中量表(NIHSS)评分,磁共振成像(MRI)扫描,和改良的Rankin量表(MRS)用于评估分类,病因学,严重程度,和AIS组的预后。根据敏感性进行评估以分析血清OSM表达,病因学,严重程度,预后,以及AIS的几个危险因素。回归模型,相关性,并进行敏感性试验以探讨OSM表达与AIS各方面的相关性。
    结果:AIS组血清OSM表达有统计学意义(P<0.001)。所有AIS亚组均显示OSM水平升高,三个亚组反映了统计学上的显着结果。通过血清OSM水平区分AIS患者和对照组的曲线下面积为0.747(P<0.001),最佳临界值显示敏感性为58.82%,特异性为75.37%。血清OSM表达的升高与严重程度成正比,与梗死体积不成比例,在有利的结果组中升高较少。血清OSM与AIS几个危险因素的相关性在年龄上有统计学意义,低密度脂蛋白,非高密度脂蛋白,凝血酶原时间,还有收缩压.
    结论:血清OSM与AIS各方面的相关表达不同。我们的发现支持了最初的假设,即OSM与人类AIS的各个方面相关。
    BACKGROUND: The expression of oncostatin M (OSM) has been studied in various diseases related to inflammatory response, but its implementation in acute ischemic stroke (AIS) remains to be explored.  Objective: The objective of this study is to assess the correlation between serum OSM expression and various aspects of AIS in a clinical setting.
    METHODS: A single-centered case-control study was performed in the First Affiliate Hospital of Chongqing Medical University from October 2020 to March 2021. A total of 134 patients were enrolled in the AIS group and 34 healthy individuals were enrolled in the control group. Physical examinations were performed and venous blood samples were collected. Enzyme-linked immunosorbent assay (ELISA) was used to measure serum OSM. Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification, National Institutes of Health Stroke Scale (NIHSS) score, magnetic resonance imaging (MRI) scan, and modified Rankin scale (mRS) were used to assess the classification, etiology, severity, and prognosis of the AIS group. Assessments were done to analyze serum OSM expression based on sensitivity, etiology, severity, prognosis, and several risk factors of AIS. Regression models, correlation, and sensitivity tests were performed to explore the correlation of OSM expression with various aspects of AIS.
    RESULTS: There was a statistically significant elevation of serum OSM expression in the AIS group (P<0.001). All AIS subgroups showed elevation in OSM level and statistically significant results were reflected in three subgroups. The area under the curve to differentiate AIS patients and control by serum OSM level was 0.747 (P<0.001), with the optimal cut-off value showing sensitivity at 58.82% and specificity at 75.37%. The elevation of serum OSM expression was proportional with severity, not proportional to the volume of infarct, and less elevated in the favorable outcome group. Serum OSM correlation with several risk factors of AIS was statistically significant in age, low-density lipoprotein, non-high-density lipoprotein, prothrombin time, and systolic blood pressure.
    CONCLUSIONS: Serum OSM was expressed differently in correlation with various aspects of AIS. Our findings supported the initial hypothesis that OSM is correlated with various aspects of AIS in humans.
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  • 文章类型: Journal Article
    目的:HNF1α转录因子调节参与β细胞发育的基因网络,并作为胰腺β细胞转录缺陷的模型;该基因的突变导致MODY。这项研究的目的是评估最常见的MODY引起基因的启动子甲基化和表达谱,HNF1α,在克什米尔MODY患者中,作为导致葡萄糖失调的因素,因为以前没有对克什米尔的MODY患者进行过此类研究。
    方法:该研究包括85名克什米尔受试者。使用标准方案提取样品的DNA和RNA。HNF1α启动子甲基化谱通过DNA的亚硫酸氢盐转化和MSP来评估,而qPCR用于表达分析。
    结果:在大多数MODY(60%)和T1D(72%)病例(p值0.0349*)中发现HNF1α的表达上调(p值0.0349*)。在具有高甲基化HNF1α启动子的MODY病例中,HNF1α表达高1.33倍(p值0.0360*)。HbA1c水平>7%的MODY患者HNF1α表达上调2.3倍(p值0.0025**)。FBS水平>7.7mmol/l的MODY病例比FBS水平≤7.7mmol/l的MODY病例上调0.646倍(p值0.0161*)。
    结论:在这项研究中,我们发现随着葡萄糖失调的进展,血液FBS,苏格兰皇家银行,和HbA1c水平上升,在更高的层次上,HNF1α表达也升高。从获得的结果来看,我们可以得出结论,HNF1α在MODY中强烈上调,从而表明HNF1α基因过表达对葡萄糖调节的有害作用。
    OBJECTIVE: HNF1α transcription factor regulates a network of genes involved in the development of β-cells and also serves as a model for transcription defects in pancreatic β-cells; mutations in this gene cause MODY. The goal of this study was to assess the promoter methylation and expression profile of the most common MODY causing gene, HNF1α, in Kashmiri MODY patients, as factors responsible for glucose dysregulation, as no such study had been performed on MODY patients in Kashmir previously.
    METHODS: The study included 85 Kashmiri subjects. Samples were extracted for DNA and RNA using standard protocols. The HNF1α promoter methylation profile was assessed by bisulfite conversion of the DNA followed by MSP, whereas qPCR was used for expression analysis.
    RESULTS: The expression of HNF1α was found to be upregulated (p value 0.0349*) in majority of MODY (60%) and T1D (72%) cases (p value 0.0349*). HNF1α expression was 1.33-fold higher in MODY cases with hypermethylated HNF1α promoters (p value 0.0360*). HNF1α expression was upregulated by 2.3-fold in MODY patients with HbA1c levels > 7% (p value 0.0025**). MODY cases with FBS levels > 7.7 mmol/l were upregulated by 0.646-fold than those with FBS levels ≤ 7.7 mmol/l (p value 0.0161*).
    CONCLUSIONS: In this study, we found that as glucose dysregulation progresses, blood FBS, RBS, and HbA1c levels rise, and that at higher levels, HNF1α expression rises as well. From the results obtained, we may conclude that HNF1α is strongly upregulated in MODY, thus indicating the deleterious effect of over expression of HNF1α gene on glucose regulation.
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  • 文章类型: Journal Article
    Metastatic spread of invasive lobular breast carcinoma to stomach is rare especially before diagnosis of primary breast cancer. Incorrect diagnosis might result in delay of appropriate treatment for breast cancer. Recognition of this possibility enables better clinical management. A 62-year-old female presented with upper gastrointestinal symptoms and weight loss and was referred to a gastroenterologist for investigation. At the time of initial diagnosis of stomach cancer, patient was asymptomatic for breast cancer. Multiple gastric biopsies taken showed features suspicious of metastatic breast cancer. Consequently, the initial provisional diagnosis of stomach cancer changed into metastatic invasive lobular breast carcinoma. These findings were corroborated radiologically. The patient was treated with letrozole and zoledronic acid as first-line therapy for one year. Residual metastatic breast cancer was present in the gastric mucosa. The patient was treated with endocrine therapy containing ribociclib and treatment was ineffective confirmed by PET-CT scan. But her symptoms have resolved completely despite her presentation with stage IV. We present rare case of initial presentation of gastric metastasis before diagnosis of a primary invasive lobular breast carcinoma. Correct diagnosis and appropriate treatment were accomplished through initial clinical suspicion, accurate histological examination, and endoscopy together with analysis of disease-specific biomarkers.
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  • 文章类型: Journal Article
    BACKGROUND: Alopecia areata (AA) is an immune mediated disorder that attacks hair follicles with unknown pathophysiology. MicroRNAs (miRNAs) are small noncoding RNA molecules, and their aberrant expression or function has been involved in different autoimmune conditions.
    OBJECTIVE: We aimed at exploring the association between some miRNAs lesional expression and AA pathogenesis by measurement of miRNAs-155, 146a, and 203 expression levels in the lesional skin from patchy AA patients and to evaluate their relation with the studied parameters.
    METHODS: Skin expression levels of miRNAs-155, 146a, and 203 were evaluated in 50 patients with patchy AA and 25 healthy controls using reverse transcriptase-quantitative PCR (RT-qPCR). The activity and severity of alopecia were assessed according to AA Investigational Assessment Guidelines criteria.
    RESULTS: Studied patients showed significant up-regulation of miRNAs-203, 146a, and 155 lesional tissue expression levels when compared to control group (p < 0.05 each). Only miRNA-146a skin expression level was significantly higher in patients with multiple lesions (p < 0.001). However, patients with active AA had significantly higher tissue expression levels of the investigated miRNAs than those with inactive disease (P 0.001, 0.009, and 0.001, respectively).
    CONCLUSIONS: Investigated miRNAs seem to be role players in AA pathogenesis and may be considered potential indicators of disease activity. However, more research is needed to clarify their accurate role and clinical importance.
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  • 文章类型: Journal Article
    X线修复交叉互补组1(XRCC1),DNA修复复合体的协调蛋白,被认为与癌症进展有关。本病例对照研究旨在研究两个双等位基因单核苷酸多态性(SNP;Arg399Gln,Arg194Trp)的XRCC1基因的组织表达水平与埃及妇女的乳腺癌(BC)风险有关。本研究包括100例BC女性患者(病例组1)和100例健康女性(对照组2)。通过免疫组织化学(IHC)评估XRCC1组织表达。两个XRCC1SNP的基因分型(Arg399Gln,还进行了使用实时聚合酶链反应(PCR)的Arg194Trp)。癌组织中的XRCC1表达水平显著低于邻近的非癌组织(p<.001)。XRCC1399Gln/Gln基因型,399Gln等位基因,占主导地位的,和隐性模型与乳腺癌组织中XRCC1表达降低和BC风险增加显着相关(3.390-,1.965-,2.241-,和2.429倍,分别)。XRCC1399Gln/Gln基因型与晚期肿瘤分级发生率较低相关(OR:0.06;95CI:0.01-0.74;p=.028)。相反,XRCC1Arg194Trp多态性与乳腺癌组织中的XRCC1表达或所有遗传模型中的BC风险均无显著关联.XRCC1单倍型,399Gln/194Arg和399Gln/194Trp,与BC的1.800倍和1.675倍风险相关,分别。在埃及妇女中,XRCC1基因多态性(Arg399Gln)与XRCC1组织表达降低和BC风险增加有关,具有良好的分化性质。此外,XRCC1单倍型,399Gln/194Arg和399Gln/194Trp,与BC风险增加有关。
    X-ray repair cross-complementing group 1 (XRCC1), a coordinator protein of the DNA repair complex, is thought to be involved in cancer progression. This case-control study aimed to investigate the association of two biallelic single-nucleotide polymorphisms (SNPs; Arg399Gln, Arg194Trp) of the XRCC1 gene with its tissue expression level and breast cancer (BC) risk in Egyptian women. This study included 100 BC female patients (case group 1) and 100 healthy females (control group 2). The XRCC1 tissue expression was assessed by immunohistochemistry (IHC). Genotyping of the two XRCC1 SNPs (Arg399Gln, Arg194Trp) using real-time polymerase chain reaction (PCR) was also conducted. The XRCC1 expression level was significantly lower in cancerous tissues than adjacent non-cancerous tissues (p < .001). The XRCC1 399Gln/Gln genotype, 399Gln allele, the dominant, and recessive models were significantly associated with lower XRCC1 expression in breast cancerous tissues and increased risk for BC (3.390-, 1.965-, 2.241-, and 2.429-folds, respectively). The XRCC1 399Gln/Gln genotype was associated with lower incidence of advanced tumor grade (OR: 0.06; 95%CI: 0.01-0.74; p = .028). Conversely, the XRCC1 Arg194Trp polymorphism did not show any significant association with either XRCC1 expression in breast cancer tissues or BC risk in all genetic models. The XRCC1 haplotypes, 399Gln/194Arg and 399Gln/194Trp, were associated with 1.800- and 1.675-folds risk for BC, respectively. The XRCC1 gene polymorphism (Arg399Gln) is associated with reduced XRCC1 tissue expression and enhanced BC risk with a well-differentiated nature in Egyptian women. Moreover, XRCC1 haplotypes, 399Gln/194Arg and 399Gln/194Trp, were associated with increased BC risk.
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  • 文章类型: Journal Article
    Narrow-leafed lupin (Lupinus angustifolius L.) is a moderate-yielding legume crop known for its high grain protein content and contribution to soil improvement. It is cultivated under photoperiods ranging from 9 to 17 h, as a spring-sown (in colder locations) or as an autumn-sown crop (in warmer regions). Wild populations require a prolonged cold period, called vernalization, to induce flowering. The key achievement of L. angustifolius domestication was the discovery of two natural mutations (named Ku and Jul) conferring vernalization independence. These mutations are overlapping deletion variants in the promoter of LanFTc1, a homolog of the Arabidopsis thaliana FLOWERING LOCUS T (FT) gene. The third deletion, named here as Pal, was recently found in primitive germplasm. In this study, we genotyped L. angustifolius germplasm that differs in domestication status and geographical origin for LanFTc1 alleles, which we then phenotyped to establish flowering time and vernalization responsiveness. The Ku and Jul lines were vernalization-independent and early flowering, wild (ku) lines were vernalization-dependent and late flowering, whereas the Pal line conferred intermediate phenotype. Three lines representing ku, Pal, and Ku alleles were subjected to gene expression surveys under 8- and 16-h photoperiods. FT homologs (LanFTa1, LanFTa2, LanFTc1, and LanFTc2) and some genes selected by recent expression quantitative trait loci mapping were analyzed. Expression profiles of LanFTc1 and LanAGL8 (AGAMOUS-like 8) matched observed differences in flowering time between genotypes, highlighted by high induction after vernalization in the ku line. Moreover, these genes revealed altered circadian clock control in Pal line under short days. LanFD (FD) and LanCRLK1 (CALCIUM/CALMODULIN-REGULATED RECEPTOR-LIKE KINASE 1) were negatively responsive to vernalization in Ku and Pal lines but positively responsive or variable in ku, whereas LanUGT85A2 (UDP-GLUCOSYL TRANSFERASE 85A2) was significantly suppressed by vernalization in all lines. Such a pattern suggests the opposite regulation of these gene pairs in the vernalization pathway. LanCRLK1 and LanUGT85A2 are homologs of A. thaliana genes involved in the FLOWERING LOCUS C (FLC) vernalization pathway. Lupins, like many other legumes, do not have any FLC homologs. Therefore, candidate genes surveyed in this study, namely LanFTc1, LanAGL8, LanCRLK1, and LanUGT85A2, may constitute anchors for further elucidation of molecular components contributing to vernalization response in legumes.
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  • 文章类型: Case Reports
    Typical face perception is mediated by holistic processing (i.e., the simultaneous integration of face parts into a whole representation). People with Acquired Prosopagnosia (AP), who have lost the ability to recognise faces after a brain lesion, should thus show atypical holistic coding. Our aim is to use the composite-face effect (CFE) as a measure of holistic processing in ST, a 48-year-old woman with AP but normal recognition of facial expressions of emotions, and matched healthy control participants. Two experiments examining the CFE for identity (Experiment 1) and for expression of emotions (Experiment 2) were conducted. Contrary to controls, in both experiments, ST showed an atypical (i.e., reversed) CFE, thus suggesting altered holistic mechanisms affecting both components of perceptual judgement. Results also suggest that normal facial expression recognition is achievable even with holistic processing difficulties, possibly through compensatory, part-based, mechanisms.
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