alpha-Fetoproteins

甲胎蛋白
  • 文章类型: Journal Article
    目的:肝细胞癌(HCC)提出了重大的全球健康挑战,特别是在肝硬化患者中,与丙型肝炎(HCV)的主要原因。在与HCV相关的肝硬化患者中,肝癌的风险增加后仍存在治愈。具有六个月超声的HCC监测已被证明可以提高生存率。然而,坚持一年两次的筛查目前是次优的。本研究旨在评估增加HCC监测摄取和改善超声敏感性对HCV治愈后HCV相关性肝硬化患者死亡率的影响。
    方法:本研究利用数学模型评估HCC进展,监视,诊断,以及成功接受HCV治疗的肝硬化患者的治疗。确定性房室模型纳入了巴塞罗那临床肝癌(BCLC)阶段,以模拟100名肝硬化患者的疾病进展和诊断概率,这些患者已成功治疗了超过10年的丙型肝炎。对四种干预措施进行了建模,以评估其改善预期寿命的潜力:监测依从性的现实改善,对监测依从性的乐观改善,诊断灵敏度增强,结果:实际依从性改善导致10年干预期内每100个队列增加9.8(95%CI7.9,11.6)个生命年;乐观依从性改善达到17.2(13.9,20.3)个生命年.诊断灵敏度的提高导致生命年增加7.0(3.6,13.8)年,治疗改善使寿命年延长9.0(7.5,10.3)年。
    结论:定期HCC超声监测对于降低治愈的丙型肝炎和肝硬化患者的死亡率仍然至关重要。我们的研究强调,即使是对超声监测依从性的微小增强,也可以比提高监测敏感性或治疗效果的策略更有效地显著提高人群的预期寿命。
    OBJECTIVE: Hepatocellular carcinoma (HCC) presents a significant global health challenge, particularly among individuals with liver cirrhosis, with hepatitis C (HCV) a major cause. In people with HCV-related cirrhosis, an increased risk of HCC remains after cure. HCC surveillance with six monthly ultrasounds has been shown to improve survival. However, adherence to biannual screening is currently suboptimal. This study aimed to evaluate the effect of increased HCC surveillance uptake and improved ultrasound sensitivity on mortality among people with HCV-related cirrhosis post HCV cure.
    METHODS: This study utilized mathematical modelling to assess HCC progression, surveillance, diagnosis, and treatment among individuals with cirrhosis who had successfully been treated for HCV. The deterministic compartmental model incorporated Barcelona Clinic Liver Cancer (BCLC) stages to simulate disease progression and diagnosis probabilities in 100 people with cirrhosis who had successfully been treated for hepatitis C over 10 years. Four interventions were modelled to assess their potential for improving life expectancy: realistic improvements to surveillance adherence, optimistic improvements to surveillance adherence, diagnosis sensitivity enhancements, and improved treatment efficacy Results: Realistic adherence improvements resulted in 9.8 (95% CI 7.9, 11.6) life years gained per cohort of 100 over a 10-year intervention period; 17.2 (13.9, 20.3) life years were achieved in optimistic adherence improvements. Diagnosis sensitivity improvements led to a 7.0 (3.6, 13.8) year gain in life years, and treatment improvements improved life years by 9.0 (7.5, 10.3) years.
    CONCLUSIONS: Regular HCC ultrasound surveillance remains crucial to reduce mortality among people with cured hepatitis C and cirrhosis. Our study highlights that even minor enhancements to adherence to ultrasound surveillance can significantly boost life expectancy across populations more effectively than strategies that increase surveillance sensitivity or treatment efficacy.
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  • 文章类型: Journal Article
    目的:微血管侵犯(MVI)是公认的与肝细胞癌(HCC)患者预后较差相关的生物标志物。双能量计算机断层扫描(DECT)是一种高度敏感的技术,可以确定肿瘤中的碘浓度(IC)并提供内部微循环灌注的间接评估。这项研究旨在评估DECT与实验室数据的结合是否可以改善术前MVI预测。
    方法:这项回顾性研究纳入了119例术前在两个医疗中心接受DECT肝血管造影的患者。为了比较MVI阴性和阳性组的DECT参数和实验室检查结果,使用Mann-WhitneyU检验。此外,进行主成分分析(PCA)以确定基本成分。采用Mann-WhitneyU检验确定MVI组的PC评分是否不同。最后,使用一般线性分类器评估各主成分(PC)评分的分类能力.
    结果:甲胎蛋白(AFP)水平存在显着差异(P<0.05),归一化动脉期IC,主数据集和验证数据集中MVI组之间的标准化入口阶段IC。PC1-PC4占主要数据集中方差的67.9%,载荷为24.1%,16%,15.4%,和12.4%,分别。在主数据集和验证数据集中,PC3和PC4在MVI组之间有显著差异,曲线下面积值分别为0.8410和0.8373。
    结论:基于不同因子负荷的DECT碘浓度和实验室特征的重组可以很好地预测术前MVI。
    结论:利用主成分分析,双能计算机断层扫描碘浓度与实验室特征的融合,考虑到不同的因子负荷,在准确分类微血管侵犯方面显示出实质性的希望。建立这种组合的努力有限,为理解相关研究工作中的数据提供了一种新的范式。
    OBJECTIVE: Microvascular invasion (MVI) is a recognized biomarker associated with poorer prognosis in patients with hepatocellular carcinoma. Dual-energy computed tomography (DECT) is a highly sensitive technique that can determine the iodine concentration (IC) in tumour and provide an indirect evaluation of internal microcirculatory perfusion. This study aimed to assess whether the combination of DECT with laboratory data can improve preoperative MVI prediction.
    METHODS: This retrospective study enrolled 119 patients who underwent DECT liver angiography at 2 medical centres preoperatively. To compare DECT parameters and laboratory findings between MVI-negative and MVI-positive groups, Mann-Whitney U test was used. Additionally, principal component analysis (PCA) was conducted to determine fundamental components. Mann-Whitney U test was applied to determine whether the principal component (PC) scores varied across MVI groups. Finally, a general linear classifier was used to assess the classification ability of each PC score.
    RESULTS: Significant differences were noted (P < .05) in alpha-fetoprotein (AFP) level, normalized arterial phase IC, and normalized portal phase IC between the MVI groups in the primary and validation datasets. The PC1-PC4 accounted for 67.9% of the variance in the primary dataset, with loadings of 24.1%, 16%, 15.4%, and 12.4%, respectively. In both primary and validation datasets, PC3 and PC4 were significantly different across MVI groups, with area under the curve values of 0.8410 and 0.8373, respectively.
    CONCLUSIONS: The recombination of DECT IC and laboratory features based on varying factor loadings can well predict MVI preoperatively.
    CONCLUSIONS: Utilizing PCA, the amalgamation of DECT IC and laboratory features, considering diverse factor loadings, showed substantial promise in accurately classifying MVI. There have been limited endeavours to establish such a combination, offering a novel paradigm for comprehending data in related research endeavours.
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  • 文章类型: Journal Article
    背景:丙型肝炎相关的慢性急性肝衰竭(HBV-ACLF),这是基于失代偿性肝硬化,有不同的实验室测试,沉淀事件,器官衰竭和临床结果。C型HBV-ACLF患者的预后预测因子与其他亚组不同。本研究旨在构建一部小说,短期预后评分应用肝再生血清学指标和肝纤维化无创评估来预测C型HBV-ACLF患者的预后。
    方法:C型HBV-ACLF患者观察90天。人口统计信息,临床检查,并收集入选患者的实验室检查结果.进行单变量和多变量逻辑回归以确定独立的预后因素并开发新的预后评分系统。接收器工作特性(ROC)曲线用于分析模型的性能。
    结果:最终纳入224例C型HBV-ACLF患者。90天内总生存率为47.77%。年龄,总胆红素(TBil),国际标准化比率(INR),甲胎蛋白(AFP),白细胞(WBC),血清钠(Na),天门冬氨酸转氨酶/血小板比值指数(APRI)是影响预后的独立因素。根据logistic回归分析的结果,建立了一个新的预后模型(称为A3Twin评分)。受试者工作特征曲线(ROC)的曲线下面积(AUC)为0.851[95%CI(0.801-0.901)],灵敏度为78.8%,特异性为71.8%,明显高于MELD,IMELD,MELD-Na,TACIA和COSSH-ACLFII评分(均P<0.001)。A3Twin评分较低(<-9.07)的患者存活时间更长。
    结论:本研究建立了以7项常规指标为基础的C型HBV-ACLF患者预后评分系统,能够准确预测近期病死率,可用于指导临床治疗。
    BACKGROUND: Type C hepatitis B-related acute-on-chronic liver failure (HBV-ACLF), which is based on decompensated cirrhosis, has different laboratory tests, precipitating events, organ failure and clinical outcomes. The predictors of prognosis for type C HBV-ACLF patients are different from those for other subgroups. This study aimed to construct a novel, short-term prognostic score that applied serological indicators of hepatic regeneration and noninvasive assessment of liver fibrosis to predict outcomes in patients with type C HBV-ACLF.
    METHODS: Patients with type C HBV-ACLF were observed for 90 days. Demographic information, clinical examination, and laboratory test results of the enrolled patients were collected. Univariate and multivariate logistic regression were performed to identify independent prognostic factors and develop a novel prognostic scoring system. A receiver operating characteristic (ROC) curve was used to analyse the performance of the model.
    RESULTS: A total of 224 patients with type C HBV-ACLF were finally included. The overall survival rate within 90 days was 47.77%. Age, total bilirubin (TBil), international normalized ratio (INR), alpha-fetoprotein (AFP), white blood cell (WBC), serum sodium (Na), and aspartate aminotransferase/platelet ratio index (APRI) were found to be independent prognostic factors. According to the results of the logistic regression analysis, a new prognostic model (named the A3Twin score) was established. The area under the curve (AUC) of the receiver operating characteristic curve (ROC) was 0.851 [95% CI (0.801-0.901)], the sensitivity was 78.8%, and the specificity was 71.8%, which were significantly higher than those of the MELD, IMELD, MELD-Na, TACIA and COSSH-ACLF II scores (all P < 0.001). Patients with lower A3Twin scores (<-9.07) survived longer.
    CONCLUSIONS: A new prognostic scoring system for patients with type C HBV-ACLF based on seven routine indices was established in our study and can accurately predict short-term mortality and might be used to guide clinical management.
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  • 文章类型: Journal Article
    背景:甲胎蛋白升高型胃癌(AFPGC)因其侵袭性和不良预后而受到越来越多的关注。这里,进行了1期剂量递增研究,以评估Zimbererelimab(GLS-010,抗PD-1)联合乐伐替尼和化疗(XELOX)作为AFPGC一线治疗的安全性和有效性.
    方法:组织学证实HER2阴性,筛选血清AFP水平升高(≥20ng/ml)的晚期GC患者.使用3+3剂量递增设计,患者接受不同剂量的乐伐替尼(12,16,20mg)和GLS-010和XELOX.主要终点是安全性和确定推荐的II期剂量(RP2D)。次要终点包括总体反应率(ORR),无进展生存期(PFS)和疾病控制率。
    结果:纳入9例患者,未观察到剂量限制性毒性。最常见的治疗相关AE是疲劳(55.6%),手足综合征(55.6%)和皮疹(55.6%),未报告≥4级AE。所有患者均表现出疾病控制,ORR达到33.3%。中位PFS和OS达到7.67个月(95%CI4.07-11.27)和13.17个月(95%CI2.78-23.56),分别。发现血清AFP水平与治疗反应相关。进一步的16srRNA测序分析表明,肠道微生物群发生了变化,其中Lachnospispileaceae细菌GAM79和RoseburiahominisA2-183的丰度升高。
    结论:GLS-010加lenvatinib和XELOX显示出可控制的安全性,对AFPGC具有良好的疗效。Lenvatinib的RP2D确定为16mg,进一步的扩展队列现在正在进行中。转化研究表明,血清AFP可以指示治疗反应,某些微生物群物种表明对免疫疗法的有利反应在组合治疗后升高。
    BACKGROUND: Alpha-fetoprotein elevated gastric cancer (AFPGC) got growing interests for its aggressive nature and unfavorable prognosis. Here, a phase 1 dose escalation study was conducted to evaluate safety and efficacy of zimberelimab (GLS-010, anti-PD-1) plus lenvatinib and chemotherapy (XELOX) as the first-line treatment for AFPGC.
    METHODS: Histologically confirmed HER2-negative, advanced GC patients with elevated serum AFP level (≥ 20 ng/ml) were screened. Using a 3 + 3 dose escalation design, patients were administered varying doses of lenvatinib (12, 16, 20 mg) with GLS-010 and XELOX. The primary endpoints were safety and determination of recommended phase II dose (RP2D). Secondary endpoints included overall response rate (ORR), progression-free survival (PFS) and disease control rate.
    RESULTS: Nine patients were enrolled with no dose-limiting toxicities observed. Most frequent treatment-related AEs were fatigue (55.6%), hand-foot syndrome (55.6%) and rash (55.6%), and no grade ≥ 4 AEs were reported. All patients exhibited disease control with ORR reaching 33.3%. The median PFS and OS reached 7.67 months (95% CI 4.07-11.27) and 13.17 months (95% CI 2.78-23.56), respectively. Serum AFP level was found correlated with therapeutic responses. Further 16s rRNA sequencing analysis demonstrated altered gut microbiota with elevated abundance of Lachnospiraceae bacterium-GAM79 and Roseburia hominis A2-183.
    CONCLUSIONS: GLS-010 plus lenvatinib and XELOX demonstrated a manageable safety profile with promising efficacy for AFPGC. With RP2D of lenvatinib determined as 16 mg, further expansion cohort is now ongoing. Translational investigation suggested that serum AFP can be indictive for therapeutic responses and certain microbiota species indicating favorable responses to immunotherapy was elevated after the combinational treatment.
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  • 文章类型: Journal Article
    目的:本研究旨在探讨α-甲胎蛋白(AFP)轨迹,以预测大肝细胞癌(HCC)肝动脉灌注化疗(HAIC)治疗后的生存结果。
    方法:从2014年5月至2020年6月,回顾性研究了五家医院的889例符合资格的大型HCC患者接受HAIC。应用潜在类别增长混合(LCGM)模型来区分潜在的AFP水平动态变化的轨迹。通过边际结构模型进行逆治疗概率加权(IPTW)分析以消除未测量的混杂因素。多变量Cox比例风险回归分析用于确定大型HCC患者的总生存期(OS)。通过接收器操作特征分析与Delong检验下的区域比较了这些血清标记物用于生存预测的性能。
    结果:中位随访时间为23.7(四分位距,3.8-115.3)。共1009例大肝癌患者,谁接受了HAIC与AFP反复测量3-10次,参加了这项研究。使用LCGM模型确定了这些血清AFP的三个不同轨迹:高稳定(37.0%;n=373),低稳定(15.7%;n=159),急剧下降(47.3%;n=477)。多变量Cox比例风险回归分析发现,ALBI2-3期、BCLC-C期和高稳定AFP轨迹与OS相关。AFP轨迹在所有风险因素中产生最佳预测性能。
    结论:基于纵向AFP变化的AFP轨迹在预测大型HCCHAIC治疗后的生存结果方面表现突出,这为改善临床决策提供了潜在的监测工具。
    OBJECTIVE: This study aims to investigate α-fetoprotein (AFP) trajectories for prediction of survival outcomes after hepatic arterial infusion chemotherapy (HAIC) treatment in large hepatocellular carcinoma (HCC).
    METHODS: From May 2014 to June 2020, 889 eligible patients with large HCC underwent HAIC were retrospectively enrolled from five hospitals. A latent class growth mixed (LCGM) model was applied to distinguish potential AFP level dynamic changing trajectories. Inverse-probability-of-treatment weighted (IPTW) analyses were performed to eliminate unmeasured confounders through marginal structural models. Multivariate Cox proportional hazard regression analyses were used to determine the overall survival (OS) in patients with large HCC. Performance of these serum markers for survival prediction was compared by areas under receiver operating characteristic analysis with the Delong test.
    RESULTS: The median follow-up time was 23.7 (interquartile range, 3.8-115.3). A total of 1009 patients with large HCC, who underwent HAIC with AFP repeatedly measured 3-10 times, were enrolled in the study. Three distinct trajectories of these serum AFP were identified using the LCGM model: high stable (37.0%; n = 373), low stable (15.7%; n = 159), and sharp-falling (47.3%; n = 477). Multivariate Cox proportional hazard regression analyses found that ALBI stage 2-3, BCLC-C stage and high-stable AFP trajectories were associated with OS. AFP trajectories yield the optimal predictive performance in all risk factors.
    CONCLUSIONS: The AFP trajectories based on longitudinal AFP change showed outstanding performance for predicting survival outcomes after HAIC treatment in large HCC, which provide a potential monitoring tool for improving clinical decision-making.
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  • 文章类型: Journal Article
    目的:探讨母体血清生物标志物浓度与胎儿携带染色体拷贝数变异(CNVs)风险之间的关系。
    方法:在妊娠中期血清学三联筛查中确定为高危孕妇,并进行传统羊水核型分析,随着比较基因组杂交阵列(aCGH)/拷贝数变异测序(CNV-seq),包括在研究中。我们划分了血清生物标志物的浓度,游离β-人绒毛膜促性腺激素(fβ-hCG),甲胎蛋白(AFP)和非结合雌三醇(uE3),分为三个级别:异常低,正常和异常高。患病率异常低,正常和异常高的血清fβ-hCG,计算aCGH/CNV-seq结果异常的孕妇和正常对照组的AFP和uE3水平。
    结果:在妊娠中期血清学三联筛查的2877例高风险患者中,通过核型分析发现了98个染色体异常,aCGH/CNVseq共检出209例异常(P<0.001)。与正常对照组相比,当母体血清uE3水平低于相应孕周的中位数(MoM)的0.4倍时,异常CNV的携带率显着增加,与正常对照组相比,当母体血清fβ-hCG水平大于2.5MoM时,异常CNV的携带率显着降低。AFP组无显著差异。
    结论:低血清uE3水平(<0.4MoM)与异常CNVs的风险增加相关。
    OBJECTIVE: To explore the association between the concentration of maternal serum biomarkers and the risk of fetal carrying chromosome copy number variants (CNVs).
    METHODS: Pregnant women identified as high risk in the second-trimester serological triple screening and underwent traditional amniotic fluid karyotype analysis, along with comparative genomic hybridization array (aCGH)/copy number variation sequencing (CNV-seq), were included in the study. We divided the concentration of serum biomarkers, free beta-human chorionic gonadotropin (fβ-hCG), alpha fetoprotein (AFP) and unconjugated estriol (uE3), into three levels: abnormally low, normal and abnormally high. The prevalence of abnormally low, normal and abnormally high serum fβ-hCG, AFP and uE3 levels in pregnant women with aberrant aCGH/CNV-seq results and normal controls was calculated.
    RESULTS: Among the 2877 cases with high risk in the second-trimester serological triple screening, there were 98 chromosome abnormalities revealed by karyotype analysis, while 209 abnormalities were detected by aCGH/CNVseq (P<0.001) . The carrying rate of aberrant CNVs increased significantly when the maternal serum uE3 level was less than 0.4 multiple of median (MoM) of corresponding gestational weeks compared to normal controls, while the carrying rate of aberrant CNVs decreased significantly when the maternal serum fβ-hCG level was greater than 2.5 MoM compared to normal controls. No significant difference was found in the AFP group.
    CONCLUSIONS: Low serum uE3 level (<0.4 MoM) was associated with an increased risk of aberrant CNVs.
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  • 文章类型: Journal Article
    背景:GALAD评分提高了早期肝细胞癌(HCC)的检出率。GALAD评分在肝癌的分期和预测肿瘤特征或临床结果中的作用仍然特别令人感兴趣。
    目的:为了确定GALAD评分在初始诊断的各个阶段的诊断/预后表现,肿瘤特征,和HCC的1年死亡率,并比较GALAD评分与其他血清生物标志物的表现。
    方法:这种前瞻性,在Vajira医院肝脏中心的新诊断HCC患者中进行诊断/预后研究.符合条件的患者使用巴塞罗那临床肝癌(BCLC)分类进行HCC分期分配。人口统计,HCC病因,并记录HCC特征。在基线处获得生物标志物和GALAD评分。前瞻性评估GALAD评分和生物标志物的表现。
    结果:共有115名患者被诊断为HCC。GALAD评分随疾病严重程度而增加。在BCLC-0/A和BCLC-B/C/D之间,GALAD评分预测HCC分期,曲线下面积(AUC)为0.868(95CI:0.80-0.93).为了确定治愈性肝癌,GALAD评分的AUC明显高于甲胎蛋白(AFP)(0.753)和AFP-L3的眼透镜凝集素反应部分(0.706),与维生素K缺失-II(PIVKA-II)诱导的蛋白质(0.897)一样好。为了检测侵略性特征,GALAD评分的AUC为0.839(95CI:0.75-0.92),与AFP(0.761)和AFP-L3(0.697)相比,具有优于PIVKA-II(0.772)的趋势。GALAD评分(AUC:0.711,95CI:0.60-0.82)预测1年死亡率的性能优于AFP(0.541),与PIVKA-II(0.736)一样好。GALAD评分的最佳临界值为≥6.83,1年死亡率显著降低的特异性为72.63%。
    结论:GALAD模型可以在治愈阶段诊断HCC,包括晚期疾病的特征,超过AFP和AFP-L3,但不是PIVKA-II。GALAD评分可用于预测HCC的1年死亡率。
    BACKGROUND: The GALAD score has improved early hepatocellular carcinoma (HCC) detection rate. The role of the GALAD score in staging and predicting tumor characteristics or clinical outcome of HCC remains of particular interest.
    OBJECTIVE: To determine the diagnostic/prognostic performances of the GALAD score at various phases of initial diagnosis, tumor features, and 1-year mortality of HCC and compare the performance of the GALAD score with those of other serum biomarkers.
    METHODS: This prospective, diagnostic/prognostic study was conducted among patients with newly diagnosed HCC at the liver center of Vajira Hospital. Eligible patients had HCC staging allocation using the Barcelona Clinic Liver Cancer (BCLC) categorization. Demographics, HCC etiology, and HCC features were recorded. Biomarkers and the GALAD score were obtained at baseline. The performance of the GALAD score and biomarkers were prospectively assessed.
    RESULTS: Exactly 115 individuals were diagnosed with HCC. The GALAD score increased with disease severity. Between BCLC-0/A and BCLC-B/C/D, the GALAD score predicted HCC staging with an area under the curve (AUC) of 0.868 (95%CI: 0.80-0.93). For identifying the curative HCC, the AUC of GALAD score was significantly higher than that of Alpha-fetoprotein (AFP) (0.753) and Lens culinaris agglutinin-reactive fraction of AFP-L3 (0.706), and as good as that of Protein induced by vitamin K absence-II (PIVKA-II) (0.897). For detecting aggressive features, the GALAD score gave an AUC of 0.839 (95%CI: 0.75-0.92) and significantly outperformed compared to that of AFP (0.761) and AFP-L3 (0.697), with a trend of superiority to that of PIVKA-II (0.772). The performance to predict 1-year mortality of GALAD score (AUC: 0.711, 95%CI: 0.60-0.82) was better than that of AFP (0.541) and as good as that of PIVKA-II (0.736). The optimal cutoff value of GALAD score was ≥ 6.83, with a specificity of 72.63% for exhibiting substantial reduction in the 1-year mortality.
    CONCLUSIONS: The GALAD model can diagnose HCC at the curative stage, including the characteristic of advanced disease, more than that by AFP and AFP-L3, but not PIVKA-II. The GALAD score can be used to predict the 1-year mortality of HCC.
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  • 文章类型: Journal Article
    背景:目的是使用间接方法为中国西南地区明显健康的老年人群建立和验证血清肿瘤标志物的参考间隔(RI)。
    方法:收集2020年4月至2021年12月华西医院35名60岁及以上健康老年人群的数据。我们利用Box-Cox转换与Tukey方法相结合来归一化数据并消除异常值。根据性别和年龄划分亚组以检查RI的划分。Z检验用于比较组间差异,95%分布RI是使用非参数方法计算的。
    结果:在研究中,我们观察到男性血清铁蛋白和Des-γ-羧基凝血酶原(DCP)的RI更广泛,范围从64.18到865.80ng/ml和14.00到33.00mAU/ml,分别,与女性相比,其范围为52.58至585.88ng/ml和13.00至29.00mAU/ml。对于其他生物标志物,总体RI如下:甲胎蛋白(AFP)0-6.75ng/ml,癌胚抗原(CEA)0-4.85ng/ml,女性碳水化合物抗原15-3(CA15-3)0-22.00U/ml,碳水化合物抗原19-9(CA19-9)0-28.10U/ml,碳水化合物抗原125(CA125)0-20.96U/ml,细胞角蛋白19片段(CYFRA21-1)0-4.66U/ml,神经元特异性烯醇化酶(NSE)0-19.41ng/ml,男性的总和游离前列腺特异性抗原(tPSA和fPSA)为0-5.26ng/ml和0-1.09ng/ml。所有这些生物标志物的RI已经通过我们严格的过程进行了验证。
    结论:本研究初步确定了中国西南地区明显健康的老年人群95%的RIs。使用真实世界的数据和间接方法,可以建立和验证老年人口的简单可靠的RI,适用于各种临床实验室。
    BACKGROUND: The aim is to establish and verify reference intervals (RIs) for serum tumor markers for an apparently healthy elderly population in Southwestern China using an indirect method.
    METHODS: Data from 35,635 apparently healthy elderly individuals aged 60 years and above were obtained in West China Hospital from April 2020 to December 2021. We utilized the Box-Cox conversion combined with the Tukey method to normalize the data and eliminate outliers. Subgroups are divided according to gender and age to examine the division of RIs. The Z-test was used to compare differences between groups, and 95% distribution RIs were calculated using a nonparametric method.
    RESULTS: In the study, we observed that the RIs for serum ferritin and Des-γ-carboxy prothrombin (DCP) were wider for men, ranging from 64.18 to 865.80 ng/ml and 14.00 to 33.00 mAU/ml, respectively, compared to women, whose ranges were 52.58 to 585.88 ng/ml and 13.00 to 29.00 mAU/ml. For other biomarkers, the overall RIs were established as follows: alpha-fetoprotein (AFP) 0-6.75 ng/ml, carcinoembryonic antigen (CEA) 0-4.85 ng/ml, carbohydrate antigen15-3 (CA15-3) for females 0-22.00 U/ml, carbohydrate antigen19-9 (CA19-9) 0-28.10 U/ml, carbohydrate antigen125 (CA125) 0-20.96 U/ml, cytokeratin 19 fragment (CYFRA21-1) 0-4.66 U/ml, neuron-specific enolase (NSE) 0-19.41 ng/ml, total and free prostate-specific antigens (tPSA and fPSA) for males 0-5.26 ng/ml and 0-1.09 ng/ml. The RIs for all these biomarkers have been validated through our rigorous processes.
    CONCLUSIONS: This study preliminarily established 95% RIs for an apparently healthy elderly population in Southwestern China. Using real-world data and an indirect method, simple and reliable RIs for an elderly population can be both established and verified, which are suitable for application in various clinical laboratories.
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  • 文章类型: Journal Article
    尽管甲胎蛋白阴性肝细胞癌(AFPNHCC)患者预后良好,术后复发的风险仍然很高.我们开发并验证了一种新的肝纤维化评估指标,直接胆红素-γ-谷氨酰转肽酶与血小板的比率(DGPRI)。对378例接受肝切除术的AFPNHCC患者中的每一例计算DGPRI。使用最佳临界值将患者分为高评分组和低评分组。Lasso-Cox方法用于识别术后复发的特征,随后通过多因素Cox回归分析来确定与复发相关的独立危险因素。开发并验证了包含DGPRI的列线图模型。高DGPRI被确定为AFPNHCC患者术后复发的独立危险因素(风险比=2.086)。DGPRI对术后1-5年复发的预测能力优于直接胆红素和γ-谷氨酰转肽酶与血小板的比值。DGPRI-列线图模型表现出良好的预测能力,C指数为0.674(95%CI0.621-0.727)。校准曲线和临床决策分析证明了其临床实用性。DGPRI列线图模型在预测无复发生存率方面优于TNM和BCLC分期系统。DGPRI是AFPNHCC患者术后复发的一种新颖有效的预测因子,并提供了术前肝纤维化的良好评估。
    Although patients with alpha-fetoprotein-negative hepatocellular carcinoma (AFPNHCC) have a favorable prognosis, a high risk of postoperative recurrence remains. We developed and validated a novel liver fibrosis assessment index, the direct bilirubin-gamma-glutamyl transpeptidase-to-platelet ratio (DGPRI). DGPRI was calculated for each of the 378 patients with AFPNHCC who underwent hepatic resection. The patients were divided into high- and low-score groups using the optimal cutoff value. The Lasso-Cox method was used to identify the characteristics of postoperative recurrence, followed by multivariate Cox regression analysis to determine the independent risk factors associated with recurrence. A nomogram model incorporating the DGPRI was developed and validated. High DGPRI was identified as an independent risk factor (hazard ratio = 2.086) for postoperative recurrence in patients with AFPNHCC. DGPRI exhibited better predictive ability for recurrence 1-5 years after surgery than direct bilirubin and the gamma-glutamyl transpeptidase-to-platelet ratio. The DGPRI-nomogram model demonstrated good predictive ability, with a C-index of 0.674 (95% CI 0.621-0.727). The calibration curves and clinical decision analysis demonstrated its clinical utility. The DGPRI nomogram model performed better than the TNM and BCLC staging systems for predicting recurrence-free survival. DGPRI is a novel and effective predictor of postoperative recurrence in patients with AFPNHCC and provides a superior assessment of preoperative liver fibrosis.
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  • 文章类型: Journal Article
    几十年来,一线临床研究的分层标准高度统一.然而,对于基于免疫检查点抑制剂(ICIs)的全身治疗进展后的限制,尚无原则或共识.这项研究的目的是评估不符合手术干预条件的晚期肝细胞癌(HCC)患者的疾病进展模式。在使用免疫检查点抑制剂之后。
    这是一项回顾性研究,涉及无法手术的中国肝脏分期(CNLC)IIIa和/或IIIb的患者。这些患者于2017年1月至2022年10月在中国的八个中心接受治疗。所有患者接受至少两个周期的含有免疫检查点抑制剂的一线治疗。使用RECIST标准1.1评估疾病进展的模式。已经基于成像进展的特性识别了不同的进展模式。研究的主要结果指标是进展后生存期(PPS)和总生存期(OS)。使用Kaplan-Meier方法绘制生存曲线以比较四组之间的差异。进行亚组分析以比较不同免疫治疗组合的疗效。在显示甲胎蛋白(AFP)水平等于或超过400ng/mL的患者组中,免疫疗法的功效也有差异。与AFP水平低于400ng/mL的患者相反。
    这项研究确定了四种不同的进展模式,即p-IIb,p-IIIa,p-IIIb,和p-IIIc.不同的进展模式表明PPS和OS两者存在显著差异。p-IIb组最长的PPS为12.7m(95%9.3-16.1)和OS19.6m(95%15.6-23.5),其余各组在PPS10.5个月(95CI:7.9-13.1)和OS19.2个月(95CI15.1-23.3)时表现为p-IIIb.同样,p-IIIc在PPS5.7个月(95CI:4.2-7.2)和OS11.0个月(95CI9.0-12.9),同时在PPS3.4个月(95CI:2.7-4.1)和OS8.2个月(95CI6.8-9.5)时也观察到p-IIIa。进行了额外的分层分析,显示单独或联合免疫疗法在OS(HR=0.92,95CI:0.59-1.43,P=0.68)和PPS(HR=0.88,95CI:0.57-1.36,P=0.54)方面没有差异;对于AFP水平0.400mL或0.39ng-0.95%CI(HR=0.86,P=0.61),OS水平没有显着差异。然而,观察到AFP水平高于400ng/mL的患者PPS的中位进展较短(8.0个月vs.5.0个月)接受免疫治疗后。
    在这项对接受免疫检查点抑制剂治疗的中国患者的晚期肝细胞癌的调查中,我们确定了四种不同的进展模式(p-IIb,p-IIIa,p-IIIb和p-IIIc)显示出PPS和OS的显着差异。这些发现证明了免疫治疗失败后疾病进展和预后的异质性。在大型队列中进一步验证对于开发整合不同进展模式以指导后续治疗决策的预后模型是必要的。此外,AFP水平≥400ng/mL患者的免疫治疗后进展表明中位PPS缩短.这些发现为未来的个性化治疗决策提供了有价值的见解。
    UNASSIGNED: For decades, stratification criteria for first-line clinical studies have been highly uniform. However, there is no principle or consensus for restratification after systemic treatment progression based on immune checkpoint inhibitors (ICIs). The aim of this study was to assess the patterns of disease progression in patients with advanced hepatocellular carcinoma (HCC) who are not eligible for surgical intervention, following the use of immune checkpoint inhibitors.
    UNASSIGNED: This is a retrospective study that involved patients with inoperable China liver stage (CNLC) IIIa and/or IIIb. The patients were treated at eight centers across China between January 2017 and October 2022. All patients received at least two cycles of first-line treatment containing immune checkpoint inhibitors. The patterns of disease progression were assessed using RECIST criteria 1.1. Different progression modes have been identified based on the characteristics of imaging progress. The study\'s main outcome measures were post-progression survival (PPS) and overall survival (OS). Survival curves were plotted using the Kaplan-Meier method to compare the difference among the four groups. Subgroup analysis was conducted to compare the efficacy of different immunotherapy combinations. Variations in the efficacy of immunotherapy have also been noted across patient groups exhibiting alpha-fetoprotein (AFP) levels equal to or exceeding 400ng/mL, in contrast to those with AFP levels below 400ng/mL.
    UNASSIGNED: The study has identified four distinct patterns of progress, namely p-IIb, p-IIIa, p-IIIb, and p-IIIc. Diverse patterns of progress demonstrate notable variations in both PPS and OS. The group p-IIb had the longest PPS of 12.7m (95% 9.3-16.1) and OS 19.6m (95% 15.6-23.5), the remaining groups exhibited p-IIIb at PPS 10.5 months (95%CI: 7.9-13.1) and OS 19.2 months (95%CI 15.1-23.3). Similarly, p-IIIc at PPS 5.7 months (95%CI: 4.2-7.2) and OS 11.0 months (95%CI 9.0-12.9), while p-IIIa at PPS 3.4 months (95%CI: 2.7-4.1) and OS 8.2 months (95%CI 6.8-9.5) were also seen. Additional stratified analysis was conducted and showed there were no differences of immunotherapy alone or in combination in OS (HR= 0.92, 95%CI: 0.59-1.43, P=0.68) and PPS (HR= 0.88, 95%CI: 0.57-1.36, P=0.54); there was no significant difference in PPS (HR=0.79, 95% CI: 0.55-1.12, P=0.15) and OS (HR=0.86, 95% CI: 0.61-1.24, P=0.39) for patients with AFP levels at or over 400ng/mL. However, it was observed that patients with AFP levels above 400ng/mL experienced a shorter median progression of PPS (8.0 months vs. 5.0 months) after undergoing immunotherapy.
    UNASSIGNED: In this investigation of advanced hepatocellular carcinoma among Chinese patients treated with immune checkpoint inhibitors, we identified four distinct progression patterns (p-IIb, p-IIIa, p-IIIb and p-IIIc) that showed significant differences in PPS and OS. These findings demonstrate the heterogeneity of disease progression and prognosis after immunotherapy failure. Further validation in large cohorts is necessary to develop prognostic models that integrate distinct progression patterns to guide subsequent treatment decisions. Additionally, post-immunotherapy progression in patients with AFP levels ≥400ng/mL indicates a shortened median PPS. These findings provide valuable insights for future personalized treatment decisions.
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