Aspartate Aminotransferases

天冬氨酸氨基转移酶
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    文章类型: Journal Article
    孤独症中的线粒体功能障碍导致线粒体合成三磷酸腺苷(ATP)的能力受到柠檬酸循环的损害,并增加无氧糖酵解。目的-测量和评估线粒体标记的水平;包括谷氨酸草酰乙酸转氨酶(GOT),谷氨酸丙酮酸转氨酶(GPT),苹果酸脱氢酶,和丙酮酸激酶)在自闭症组中,并且知道使用这些标志物诊断自闭症谱系障碍儿童的可能性。在Al-Zahraa教学医院(库特市,伊拉克)对100名伊拉克儿童(男女),之间(2023年4月至2024年1月)。他们的年龄在3到9岁之间。其中50例患者作为孤独症组,50例健康者作为对照组。收集血样并对GOT进行生物测定,GPT,丙酮酸激酶,用ELISA技术测定苹果酸脱氢酶。自闭症组显示尿液有,尿液GPT,血清苹果酸,ASD组血清丙酮酸水平明显高于对照组(P<0.001)。ROC分析显示尿液中,尿液中,血清苹果酸和血清丙酮酸的准确度为(81%,71%,77%,和80%),曲线下面积(AUC)>0.7(0.8),0.7、0.7(0.76)、和0.7(0.8)因此尿液,尿液GPT,血清,苹果酸,血清丙酮酸是有效的诊断标记物。线粒体标志物的平均尿液和血清浓度存在显着差异(GOT,GPT,苹果酸脱氢酶,和丙酮酸激酶)由于线粒体功能障碍而在自闭症儿童和对照组之间。
    Mitochondrial dysfunction in autism leads to impair the mitochondria\'s ability to synthesis adenosine triphosphate (ATP) by impairment citric acid cycle as well as increase anaerobic glycolysis. Aim - measuring and evaluating the levels of mitochondrial markers; including glutamate oxaloacetate transaminase (GOT), glutamate pyruvate transaminase (GPT), malate dehydrogenase, and pyruvate kinase) in the autistic group and knowing the possibility of using these markers to diagnose children with autism spectrum disorder. A case-control study was done in the Al-Zahraa Teaching Hospital (Kut City, Iraq) on 100 Iraqi children (male and female), between (April 2023 and January 2024). Their ages ranged between 3 and 9 years. Among them were 50 patients enrolled as autistic group and 50 healthy enrolled as control group. Blood samples were collected and bioassays for GOT, GPT, pyruvate kinase, and malate dehydrogenase were measured by ELISA technique. The autistic group showed that the urine GOT, urine GPT, serum malate, and serum pyruvate levels in the ASD group was significantly higher (P<0.001) than the control group. The ROC analysis showed that urine GOT, urine GOT, serum malate and serum pyruvate had an accuracy level of (81%,71%,77%, and 80 %) and the area under the curve (AUC) was > 0.7 (0.8),0.7, 0.7(0.76), and 0.7(0.8) thus urine GOT, urine GPT, serum, malate, and serum pyruvate are a valid diagnostic marker. There was a significant difference in the mean urine and serum concentrations of mitochondrial markers (GOT, GPT, malate dehydrogenase, and pyruvate kinase) between autistic children and the control group due to mitochondrial dysfunction.
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  • 文章类型: Journal Article
    乙型肝炎表面抗原(HBsAg)和抗HBsAg抗体(抗HBs)的同时阳性血清学模式被认为是慢性乙型肝炎病毒(HBV)感染患者中的特异性和非典型现象,尤其是儿科患者。不幸的是,对慢性HBV感染儿童的临床和病毒学特征以及HBsAg和抗-HBs共存的理解有限。因此,我们的目标是确定共存的HBsAg和抗-HBs的患病率,并探讨该患者人群中相关的临床和病毒学特征.研究人员对2011年12月至2022年6月的413例慢性HBV感染儿科患者进行了回顾性队列研究。患者根据其抗HBs状态分为两组。人口统计,比较两组血清生化指标和病毒学指标。在总共413名受试者中,94(22.8%)的HBsAg和抗HBs均呈阳性。抗-HBs患者年龄较小,白蛋白与球蛋白(A/G)的比率显着提高,血清丙氨酸转氨酶(ALT)水平升高,降低天门冬氨酸转氨酶(AST)/ALT(AST/ALT)的比率和降低的球蛋白血清水平,HBsAg和HBVDNA,此外,与没有抗HBs的患者相比,这些患者更有可能显示出共存的HBeAg和抗HBe。多元逻辑分析结果表明,AST/ALT,血清球蛋白和HBsAg水平与HBsAg和抗-HBs共存呈负相关。我们的数据表明,在儿科患者中共存的HBsAg和抗-HBs相当普遍。具有这种特定血清学模式的儿童通常年龄较小,似乎易感他们早期肝功能损害和降低HBV复制活性。
    Serological pattern of simultaneous positivity for hepatitis B surface antigen (HBsAg) and antibody against HBsAg (anti-HBs) is considered a specific and atypical phenomenon among patients with chronic hepatitis B virus (HBV) infection, especially in pediatric patients. Unfortunately, there is limited understanding of the clinical and virological characteristics among children having chronic HBV infection and the coexistence of HBsAg and anti-HBs. Hence, our objective was to determine the prevalence of coexistent HBsAg and anti-HBs and to explore the associated clinical and virological features in this patient population. The researchers conducted a retrospective cohort study on the 413 pediatric patients with chronic HBV infection from December 2011 to June 2022. The patients were stratified into two groups based on their anti-HBs status. Demographic, serum biochemical and virological parameters of two group were compared. Of the total 413 enrolled subjects, 94 (22.8%) were tested positive for both HBsAg and anti-HBs. Patients with anti-HBs were younger and demonstrated significantly higher ratio of albumin to globulin (A/G), elevated serum levels of alanine transaminase (ALT), lower ratio of aspartate transaminase (AST)/ALT (AST/ALT) and reduced serum levels of globulin, HBsAg and HBV DNA, Additionally, these patients were more likely to show coexistent HBeAg and anti-HBe when compared to patients without anti-HBs. The results of multivariate logistical analysis revealed that AST/ALT, serum levels of globulin and HBsAg were negatively associated with coexistence of HBsAg and anti-HBs. Our data demonstrated a considerable prevalence of coexisting HBsAg and anti-HBs in pediatric patients. Children with this specific serological pattern were commonly of a younger age, seemly predisposing them to early liver impairment and lower HBV replication activity.
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  • 文章类型: Journal Article
    天冬氨酸与丙氨酸转氨酶(AST/ALT)的比值表明氧化应激和炎症反应与糖尿病视网膜病变(DR)的发生有关。目前,没有关于AST/ALT比值与DR之间相关性的报道。因此,本研究旨在探讨AST/ALT比值与DR的关系。这项横断面研究利用了市第一人民医院代谢管理中心的数据。总的来说,1365名2型糖尿病(T2DM)患者参与了这项研究,其中DR患者244例,无DR患者1121例。我们收集了眼底照相的结果,肝功能,和其他研究数据,并根据AST/ALT比率的三元进行分组。DR患病率在AST/ALT比值最高的组中最高(22.12%,P=.004)。单变量(OR=2.25,95%CI:1.51-3.34,P<.001)和多变量逻辑回归分析(校正混杂因素)均显示,当AST/ALT比值增加1个标准差(SD)时,DR的风险增加了36%(OR=1.36,95%CI:1.16-1.59,P<.001),29.3%是由糖尿病病程介导的。敏感性分析证实了结果的稳定性。这项研究表明,AST/ALT比值的增加是DR的独立危险因素。
    The aspartate to alanine transaminase (AST/ALT) ratio indicates oxidative stress and inflammatory reactions related to the occurrence of diabetic retinopathy (DR). Currently, there are no reports on the correlation between AST/ALT ratio and DR. Hence, this study aimed to explore the relationship between AST/ALT ratio and DR. This cross-sectional study utilized data from the Metabolic Management Center of the First People\'s Hospital in City. In total, 1365 patients with type 2 diabetes mellitus (T2DM) participated in the study, including 244 patients with DR and 1121 patients without DR. We collected the results of fundus photography, liver function, and other research data and grouped them according to tertiles of AST/ALT ratios. DR prevalence was the highest in the group with the highest AST/ALT ratio (22.12%, P = .004). Both univariate (OR = 2.25, 95% CI: 1.51-3.34, P < .001) and multivariable logistic regression analyses (adjusted for confounding factors) showed that the risk of DR increased by 36% when the AST/ALT ratio increased by 1 standard deviation (SD) (OR = 1.36, 95% CI: 1.16-1.59, P < .001), and 29.3% was mediated by the duration of diabetes. A sensitivity analysis confirmed the stability of the results. This study showed that an increase in AST/ALT ratio is an independent risk factor for DR.
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  • 文章类型: Journal Article
    为了确定脂质代谢与妊娠期肝内胆汁淤积症(ICP)之间的关系,并探讨母体丙氨酸氨基转移酶/天冬氨酸氨基转移酶(ALT/AST)和高密度脂蛋白(HDL)在预测ICP妇女不良新生儿结局中的价值。
    本研究选取石家庄市第四医院收治的147例ICP孕妇和同期120例正常孕妇。采用Mann-WhitneyU检验和卡方检验比较临床资料的差异。采用多因素logistic回归分析ALT/AST与ICP患者不良妊娠结局发生的关系。通过受试者工作特征(ROC)曲线分析确定ALT/AST和HDL的组合预测值。
    在147名患有ICP的女性中,122名妇女的总胆汁酸(TBA)水平为10-39.9µmol/L,25的TBA≥40μmol/L重度ICP患者的孕龄明显低于轻度ICP组和对照组(均p<0.05)。且母体ICP组新生儿体重明显低于对照组(p<0.05)。增加TBA水平与较高的AST相关,ALT,ALT/AST,和较低的HDL水平(所有p<0.05)。同时,ALT/AST水平升高与新生儿高胆红素血症[校正比值比(AOR)=4.019,95%CI[1.757-9.194,p=0.001]和心脏损伤[AOR=3.500,95%CI[1.535-7.987]呈正相关,p=0.003]。HDL是新生儿高胆红素血症和心脏损伤的重要保护因素[AOR=0.315,95%CI[0.126-0.788],p=0.014;AOR=0.134(0.039-0.461),p=0.001]。ALT/AST联合HDL预测新生儿高胆红素血症的ROC曲线下面积(AUC)为0.668[95%CI[56.3-77.3%],p=0.002],敏感性和特异性分别为47.1%和84.0%,分别。预测新生儿心脏损伤,AUC值为0.668[95%CI[56.4-77.1%],p=0.002],敏感性和特异性分别为41.2%和87.1%,分别。
    较高的ALT/AST水平和较低的HDL水平与ICP相关的不良新生儿结局的风险显著相关。此外,ALT/AST联合HDL对预测新生儿高胆红素血症及心脏损伤的不良结局具有中等临床价值。
    UNASSIGNED: To determine the association between lipid metabolism and intrahepatic cholestasis of pregnancy (ICP), and explore the value of maternal alanine aminotransferase/aspartate aminotransferase (ALT/AST) and high-density lipoprotein (HDL) in predicting adverse neonatal outcomes in women with ICP.
    UNASSIGNED: A total of 147 pregnant women with ICP admitted to The Fourth Hospital of Shijiazhuang and 120 normal pregnant women in the same period were selected in this study. The Mann-Whitney U test and Chi-square tests were used to compare the differences in clinical data. Multivariate logistic regression was used to analyze the relationship between ALT/AST and the occurrence of adverse pregnancy outcomes in patients with ICP. The combined predictive value of ALT/AST and HDL was determined by receiver operating characteristic (ROC) curve analysis.
    UNASSIGNED: Among 147 women with ICP, 122 women had total bile acid (TBA) levels of 10-39.9 µmol/L, and 25 had TBA ≥ 40 µmol/L. There was significantly lower gestational age in patients with severe ICP than in those with mild and control groups (all p < 0.05), and the weight of newborns in the maternal ICP group was significantly lower than in the control group (p < 0.05). Increasing TBA levels was associated with higher AST, ALT, ALT/AST, and lower HDL level (all p < 0.05). Meanwhile, higher levels of ALT/AST was positively associated with neonatal hyperbilirubinemia [adjusted odds ratio (AOR) = 4.019, 95% CI [1.757-9.194, p = 0.001] and cardiac injury [AOR = 3.500, 95% CI [1.535-7.987], p = 0.003]. HDL was a significant protective factor for neonatal hyperbilirubinemia and cardiac injury [AOR = 0.315, 95% CI [0.126-0.788], p = 0.014; AOR = 0.134 (0.039-0.461), p = 0.001]. The area under the ROC curve (AUC) for prediction of neonatal hyperbilirubinemia by ALT/AST combined with HDL was 0.668 [95% CI [56.3-77.3%], p = 0.002], and the sensitivity and specificity were 47.1% and 84.0%, respectively. To predict neonatal cardiac injury, the AUC value was 0.668 [95% CI [56.4-77.1%], p = 0.002], with sensitivity and specificity were 41.2% and 87.1%, respectively.
    UNASSIGNED: The levels of higher ALT/AST and lower HDL were significantly associated with the risk of ICP-related adverse neonatal outcomes. Moreover, ALT/AST combined with HDL has moderate clinical value in predicting the adverse outcomes of neonatal hyperbilirubinemia and cardiac injury.
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  • 文章类型: Journal Article
    背景:确定未确诊的晚期慢性肝病(ACLD)患者是一项公共卫生挑战。患有晚期纤维化或代偿性肝硬化的患者比失代偿性疾病的患者具有更好的结果,并且可能有资格进行干预以预防疾病进展。
    方法:开发了一种基于云的软件解决方案(“肝脏工具包”)来访问初级保健实践软件,以识别有ACLD风险的患者。提取临床病史和实验室检查结果,计算天冬氨酸转氨酶/血小板比值指数和纤维化4评分。确定的患者被召回进行评估,包括肝脏硬度测量(LSM)通过瞬时弹性成像。那些现有的肝硬化诊断被排除在外。
    结果:评估了9项一般实践中32,000多名成年人的现有实验室结果,以确定703名ACLD风险增加的患者(占队列的2.2%)。成功召回了一百七十九名患者(26%),和23/179(13%)被鉴定为患有ACLD(LSM≥10.0kPa)(10%处于不确定风险[LSM8.0-9.9kPa],77%处于纤维化低风险[LSM<8.0kPa]).在大多数情况下,肝病的诊断是新的,最常见的病因是代谢功能障碍相关的脂肪变性肝病(n=20,83%)。天冬氨酸转氨酶与血小板比值指数≥1.0和纤维化4≥3.25对检测ACLD的阳性预测值为19%和24%,分别。未参加召回的患者有更严重疾病的标志物,谷草转氨酶与血小板比率指数评分中位数较高(0.57vs.0.46,p=0.041)。
    结论:这个新的信息技术系统使用现有的实验室结果成功地筛选了一个大型初级保健队列,以确定风险增加的ACLD患者。召回的5例患者中有1例以上被发现患有肝病,需要专家随访。
    BACKGROUND: Identifying patients with undiagnosed advanced chronic liver disease (ACLD) is a public health challenge. Patients with advanced fibrosis or compensated cirrhosis have much better outcomes than those with decompensated disease and may be eligible for interventions to prevent disease progression.
    METHODS: A cloud-based software solution (\"the Liver Toolkit\") was developed to access primary care practice software to identify patients at risk of ACLD. Clinical history and laboratory results were extracted to calculate aspartate aminotransferase-to-platelet ratio index and fibrosis 4 scores. Patients identified were recalled for assessment, including Liver Stiffness Measurement (LSM) via transient elastography. Those with an existing diagnosis of cirrhosis were excluded.
    RESULTS: Existing laboratory results of more than 32,000 adults across nine general practices were assessed to identify 703 patients at increased risk of ACLD (2.2% of the cohort). One hundred seventy-nine patients (26%) were successfully recalled, and 23/179 (13%) were identified to have ACLD (LSM ≥10.0 kPa) (10% found at indeterminate risk [LSM 8.0-9.9 kPa] and 77% low risk of fibrosis [LSM <8.0 kPa]). In most cases, the diagnosis of liver disease was new, with the most common etiology being metabolic dysfunction-associated steatotic liver disease (n=20, 83%). Aspartate aminotransferase-to-platelet ratio index ≥1.0 and fibrosis 4 ≥3.25 had a positive predictive value for detecting ACLD of 19% and 24%, respectively. Patients who did not attend recall had markers of more severe disease with a higher median aspartate aminotransferase-to-platelet ratio index score (0.57 vs. 0.46, p=0.041).
    CONCLUSIONS: This novel information technology system successfully screened a large primary care cohort using existing laboratory results to identify patients at increased risk ACLD. More than 1 in 5 patients recalled were found to have liver disease requiring specialist follow-up.
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  • 文章类型: Journal Article
    严重发热伴血小板减少综合征(SFTS)是由SFTS病毒(SFTSV)引起的潜在致命的蜱传人畜共患病。除了蜱叮咬,已经报道了SFTSV的动物到人传播,但对猫SFTSV感染知之甚少。在这项研究中,我们分析了187只疑似SFTS的猫的数据,以确定SFTS诊断和临床结局的生物标志物.体重,红、白血细胞和血小板计数,血清天冬氨酸转氨酶和总胆红素水平对SFTS诊断有用,而丙氨酸转氨酶,谷草转氨酶和血清SFTSVRNA水平与临床结局相关.我们开发了一个评分模型来预测SFTSV感染。此外,我们进行了系统发育分析,以揭示疾病严重程度与病毒株之间的关系。这项研究提供了有关猫科动物SFTS的全面信息,并可能有助于保护猫主人,社区成员,和兽医从猫传播的SFTSV感染的风险。
    Severe fever with thrombocytopenia syndrome (SFTS) is a potentially fatal tick-borne zoonosis caused by SFTS virus (SFTSV). In addition to tick bites, animal-to-human transmission of SFTSV has been reported, but little is known about feline SFTSV infection. In this study, we analyzed data on 187 cats with suspected SFTS to identify biomarkers for SFTS diagnosis and clinical outcome. Body weight, red and white blood cell and platelet counts, and serum aspartate aminotransferase and total bilirubin levels were useful for SFTS diagnosis, whereas alanine aminotransferase, aspartate aminotransferase and serum SFTSV RNA levels were associated with clinical outcome. We developed a scoring model to predict SFTSV infection. In addition, we performed a phylogenetic analysis to reveal the relationship between disease severity and viral strain. This study provides comprehensive information on feline SFTS and could contribute to the protection of cat owners, community members, and veterinarians from the risk of cat-transmitted SFTSV infection.
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  • 文章类型: Journal Article
    高脂血症是公认的心血管疾病的危险因素。在这项研究中,螺旋藻(Arthrospiraplatensis,来自塞尔维亚的S2菌株)在通过高脂饮食(HFD)诱导高胆固醇血症之前和之后在成年Wistar大鼠中进行了测试,以比较预防和疗效。总胆固醇(TC),高密度脂蛋白胆固醇(HDL-C),低密度脂蛋白胆固醇(LDL-C),在血液样品中测量丙氨酸转氨酶(ALT)和天冬氨酸转氨酶(AST)水平。化学成分(脂质,蛋白质和胆固醇)以及动物粪便中胆汁酸的含量也进行了分析。用动脉粥样硬化饮食喂养大鼠10周导致高脂血症的成功发展,血清TC和LDL-C水平以及血脂,动物粪便中的胆固醇和胆汁酸显著增加。螺旋藻治疗前后导致血清LDL降低,TC和ALT水平。螺旋藻的施用导致初级胆汁酸排泄的显着增加和胆汁酸代谢的减少。在某些情况下,预处理比后处理更有效。这些结果表明,胆汁酸的排泄增加以及对肠道微生物群的影响可能是导致所测试螺旋藻菌株抗高脂血症活性的机制。
    Hyperlipidaemia is a recognised risk factor for cardiovascular disease. In this study, the antihyperlipidaemic properties of spirulina (Arthrospira platensis, strain S2 from Serbia) were tested in adult Wistar rats before and after induction of hypercholesterolaemia by a high-fat diet (HFD) to compare the preventive with the curative effect. Total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), alanine transaminase (ALT) and aspartate transaminase (AST) levels were measured in the blood samples. The chemical composition (lipids, proteins and cholesterol) and the content of bile acids in the faeces of the animals were also analysed. Feeding rats with an atherogenic diet for 10 weeks led to the successful development of hyperlipidaemia, as serum TC and LDL-C levels as well as lipids, cholesterol and bile acids in the animals\' faeces were significantly increased. Pre- and post-treatment with spirulina led to a reduction in serum LDL, TC and ALT levels. Administration of spirulina resulted in both a significant increase in primary bile acids excretion and a decrease in bile acids metabolism, with pre-treatment being more effective than post-treatment in some cases. These results suggest that increased excretion of bile acids as well as an effect on the gut microbiota may be the mechanism responsible for the anti-hyperlipidaemic activity of the tested spirulina strain.
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  • 文章类型: Journal Article
    谷氨酸抓取者,如谷氨酸草酰乙酸转氨酶(GOT),已提出预防中风患者高谷氨酸水平继发的兴奋性毒性。然而,GOT捕获血谷氨酸的功效可能取决于血脑屏障(BBB)破坏的程度和严重程度.我们的目的是根据BBB血清标志物(基于神经影像学的可溶性肿瘤坏死因子样弱凋亡诱导剂(sTWEAK)和脑白质疏松),分析GOT和谷氨酸浓度与患者功能状态的关系。这项回顾性观察研究包括906名缺血性卒中患者。我们研究了脑白质疏松症的存在和血清谷氨酸水平,有,和血液样本中的sTWEAK。在3个月时使用改良的Rankin量表(mRS)评估功能结果。在sTWEAK水平>2900pg/mL的患者中,GOT和谷氨酸水平之间呈显著负相关(Pearson相关系数:-0.249;p<0.0001)。在患有和不患有脑白质疏松症的患者中也观察到了这种相关性(Pearson相关系数:-0.299;p<0.001vs.-0.116;p=0.024)。逻辑回归模型证实,当sTWEAK水平>2900pg/mL(OR:0.41;CI95%:0.28-0.68;p<0.0001)或与脑白质疏松(OR:0.75;CI95%:0.69-0.82;p<0.0001)时,在3个月时,较高的GOT水平与较低的不良预后相关。GOT水平与3个月时的谷氨酸水平和功能结果相关,但仅限于患有脑白质疏松和sTWEAK水平升高的患者。因此,针对谷氨酸捕获的治疗可能对BBB功能障碍患者更有效.
    Glutamate grabbers, such as glutamate oxaloacetate transaminase (GOT), have been proposed to prevent excitotoxicity secondary to high glutamate levels in stroke patients. However, the efficacy of blood glutamate grabbing by GOT could be dependent on the extent and severity of the disruption of the blood-brain barrier (BBB). Our purpose was to analyze the relationship between GOT and glutamate concentration with the patient\'s functional status differentially according to BBB serum markers (soluble tumor necrosis factor-like weak inducer of apoptosis (sTWEAK) and leukoaraiosis based on neuroimaging). This retrospective observational study includes 906 ischemic stroke patients. We studied the presence of leukoaraiosis and the serum levels of glutamate, GOT, and sTWEAK in blood samples. Functional outcome was assessed using the modified Rankin Scale (mRS) at 3 months. A significant negative correlation between GOT and glutamate levels at admission was shown in those patients with sTWEAK levels > 2900 pg/mL (Pearson\'s correlation coefficient: -0.249; p < 0.0001). This correlation was also observed in patients with and without leukoaraiosis (Pearson\'s correlation coefficients: -0.299; p < 0.001 vs. -0.116; p = 0.024). The logistic regression model confirmed the association of higher levels of GOT with lower odds of poor outcome at 3 months when sTWEAK levels were >2900 pg/mL (OR: 0.41; CI 95%: 0.28-0.68; p < 0.0001) or with leukoaraiosis (OR: 0.75; CI 95%: 0.69-0.82; p < 0.0001). GOT levels are associated with glutamate levels and functional outcomes at 3 months, but only in those patients with leukoaraiosis and elevated sTWEAK levels. Consequently, therapies targeting glutamate grabbing might be more effective in patients with BBB dysfunction.
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  • 文章类型: Journal Article
    目的:探讨肝酶与卵巢癌(OC)的关系。并验证其作为生物标志物的潜力及其在OC中的作用机制。方法对OC和碱性磷酸酶(ALP)等酶水平进行全基因组关联研究,天冬氨酸转氨酶(AST),丙氨酸转氨酶,和γ-谷氨酰转移酶进行了分析。单变量和多变量孟德尔随机化(MR),在施泰格试验的补充下,鉴定出与OC有潜在因果关系的酶。来自GSE130000数据集的单细胞转录组学精确定位的关键细胞簇,能够进一步检查酶编码基因的表达。预测控制这些基因的转录因子(TF)构建TF-mRNA网络。此外,回顾性分析健康个体和OC患者的肝酶水平,同时评估与癌症抗原125(CA125)和人附睾蛋白4(HE4)的相关性。
    结果:共有283个单核苷酸多态性(SNPs)和209个与ALP和AST相关的SNPs,分别。使用逆方差加权方法,单因素MR(UVMR)分析显示ALP(P=0.050,OR=0.938)和AST(P=0.017,OR=0.906)与OC风险呈负相关,表明它们作为保护因素的作用。多变量MR(MVMR)证实了ALP对OC的因果关系(P=0.005,OR=0.938),而没有反向因果关系。关键细胞簇,包括T细胞,卵巢细胞,内皮细胞,巨噬细胞,癌症相关成纤维细胞(CAFs),并鉴定了上皮细胞,上皮细胞显示高表达编码AST和ALP的基因。值得注意的是,TFs如TCE4与GOT2和ALPL基因的调控有关。OC患者样本显示血液和肿瘤组织中ALP水平降低,观察到ALP和CA125水平之间呈负相关。
    结论:这项研究建立了AST和ALP与OC之间的因果关系,将其视为保护因素。编码这些酶的基因在上皮细胞中的表达增加为开发新型疾病标志物和OC的靶向治疗提供了理论基础。
    OBJECTIVE: To investigate the association between liver enzymes and ovarian cancer (OC), and to validate their potential as biomarkers and their mechanisms in OC. Methods Genome-wide association studies for OC and levels of enzymes such as Alkaline phosphatase (ALP), Aspartate aminotransferase (AST), Alanine aminotransferase, and gamma-glutamyltransferase were analyzed. Univariate and multivariate Mendelian randomization (MR), complemented by the Steiger test, identified enzymes with a potential causal relationship to OC. Single-cell transcriptomics from the GSE130000 dataset pinpointed pivotal cellular clusters, enabling further examination of enzyme-encoding gene expression. Transcription factors (TFs) governing these genes were predicted to construct TF-mRNA networks. Additionally, liver enzyme levels were retrospectively analyzed in healthy individuals and OC patients, alongside the evaluation of correlations with cancer antigen 125 (CA125) and Human Epididymis Protein 4 (HE4).
    RESULTS: A total of 283 single nucleotide polymorphisms (SNPs) and 209 SNPs related to ALP and AST, respectively. Using the inverse-variance weighted method, univariate MR (UVMR) analysis revealed that ALP (P = 0.050, OR = 0.938) and AST (P = 0.017, OR = 0.906) were inversely associated with OC risk, suggesting their roles as protective factors. Multivariate MR (MVMR) confirmed the causal effect of ALP (P = 0.005, OR = 0.938) on OC without reverse causality. Key cellular clusters including T cells, ovarian cells, endothelial cells, macrophages, cancer-associated fibroblasts (CAFs), and epithelial cells were identified, with epithelial cells showing high expression of genes encoding AST and ALP. Notably, TFs such as TCE4 were implicated in the regulation of GOT2 and ALPL genes. OC patient samples exhibited decreased ALP levels in both blood and tumor tissues, with a negative correlation between ALP and CA125 levels observed.
    CONCLUSIONS: This study has established a causal link between AST and ALP with OC, identifying them as protective factors. The increased expression of the genes encoding these enzymes in epithelial cells provides a theoretical basis for developing novel disease markers and targeted therapies for OC.
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  • 文章类型: Journal Article
    背景:本研究旨在探讨丙氨酸天门冬氨酸氨基转移酶与淋巴细胞比值指数(ALRI)在诊断为急性心肌梗死(AMI)患者中的临床价值和预后意义。
    方法:从重症监护医学信息标记(MIMIC)III数据库和武汉市第六医院收集AMI患者的临床指标。Cox回归分析用于探讨ALRI是否是AMI患者预后较差的危险因素。并创建包括ALRI的列线图,以估计其对28日死亡率的预测性能.
    结果:根据MIMIC-III数据库的临床数据,我们发现高ALRI与多种临床参数密切相关.这是AMI患者28天生存的重要危险因素(HR=5.816)。ALRI对AMI患者的28天生存率下降有很高的预测能力(曲线下面积[AUC]=0.754)。此外,我们使用武汉市第六医院的临床资料来验证ALRI对AMI患者的预测能力,高水平的ALRI仍然是AMI患者生存恶化的独立危险因素(HR=4.969)。AMI列线图,包括ALRI,在MIMIC-III(AUC=0.826)和武汉市第六医院队列(AUC=0.795)中,28天死亡率均显示良好的预测性能.
    结论:ALRI与初诊AMI患者的生存结局密切相关,这表明它可以作为一种新的生物标志物对这些患者进行风险分层。
    BACKGROUND: This study aimed to investigate the clinical value and prognostic significance of the alanine aspartate aminotransferase-to-lymphocyte ratio index (ALRI) in patients diagnosed with acute myocardial infarction (AMI).
    METHODS: Clinical indices of patients with AMI were collected from the Medical Information Mark for Intensive Care (MIMIC) III database and Wuhan Sixth Hospital. Cox regression analysis was used to explore whether ALRI was a risk factor for a worse prognosis in patients with AMI, and a nomogram including ALRI was created to estimate its predictive performance for 28-day mortality.
    RESULTS: Based on clinical data from the MIMIC-III database, we found that a high ALRI was closely associated with a variety of clinical parameters. It was an important risk factor for 28-day survival in patients with AMI (HR = 5.816). ALRI had a high predictive power for worse 28-day survival in patients with AMI (area under the curve [AUC] = 0.754). Additionally, we used clinical data from the Wuhan Sixth Hospital to verify the predictive power of ALRI in patients with AMI, and a high level of ALRI remained an independent risk factor for worse survival in patients with AMI (HR = 4.969). The AMI nomogram, including ALRI, displayed a good predictive performance for 28-day mortality in both the MIMIC-III (AUC = 0.826) and Wuhan Sixth Hospital cohorts (AUC = 0.795).
    CONCLUSIONS: The ALRI is closely related to the survival outcomes of patients with newly diagnosed AMI, indicating that it could serve as a novel biomarker for risk stratification such patients.
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