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AI in the Prediction of Hepatic Fibrosis Progression Using Non-Coding RNAs. AI在非编码rna预测肝纤维化进展中的应用。
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-12 DOI: 10.1016/j.cca.2026.120973
Dibakar Roy, Md Sadique Hussain, Yumna Khan, Dhara N Patel, Aseel Smerat, Neeraj Bainsal, Sumel Ashique, Arun Kumar, Irfan Ali Khan, Ochilova Dilorom, Muyassar Allaberganova, Anorgul Ashirova

Hepatic fibrosis is a dynamic and progressive condition that can lead to cirrhosis and hepatocellular carcinoma (HCC) if left untreated. Appropriate assessment of the disease progression of fibrosis is critical for early intervention and individualized treatment regimens. Traditional biopsy techniques are invasive and prone to sampling errors, highlighting the need for less invasive predictive techniques. Non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs), have emerged as key regulators of hepatic fibrogenesis and as a possible biomarker for disease staging and prognosis. The emergence of artificial intelligence (AI), particularly machine learning (ML) and deep learning (DL), has revolutionized the comprehensive large-scale analysis of transcriptomic data, enhancing the identification of ncRNA biomarkers and predictive modeling. The AI-based algorithms have been found to be more precise in anticipating fibrosis progression by means of integrating multi-omics data, ncRNA interaction networks, and by improving non-invasive diagnostic tools. This review involves the analysis of AI and ncRNA research in hepatic fibrosis, highlighting recent discoveries, possible challenges, and future opportunities. We address the necessity of standardization of data and clinical validation, as well as discuss the role of AI in identifying biomarkers of ncRNA, predicting the stage of fibrosis and risk stratification. ncRNA analysis with AI has a tremendous potential of transforming the diagnostics and prognostics of hepatic fibrosis, enabling precision hepatology.

肝纤维化是一种动态的进行性疾病,如果不治疗,可导致肝硬化和肝细胞癌(HCC)。适当评估纤维化的疾病进展对早期干预和个体化治疗方案至关重要。传统的活检技术是侵入性的,容易产生抽样误差,需要开发侵入性较小的预测技术。非编码rna (ncRNAs),包括miRNAs (miRNAs)、long ncRNAs (lncRNAs)和环状rna (circRNAs)已成为肝纤维化发生的关键调节因子,并可能作为疾病分期和预后的生物标志物。人工智能(AI)、机器学习(ML)和深度学习(DL)的出现彻底改变了转录组学数据的全面大规模分析,增强了ncrna生物标志物的识别和预测建模。研究发现,通过整合多组学数据、ncRNA相互作用网络和改进非侵入性诊断仪器,基于人工智能的算法在预测纤维化进展方面更为精确。本文综述了人工智能和ncRNA在肝纤维化中的研究,最近的发现,可能的挑战和未来的机遇。我们讨论了数据标准化和临床验证的必要性,并讨论了人工智能在识别ncRNA生物标志物、预测纤维化阶段和风险分层方面的作用。人工智能的ncRNA分析在改变肝纤维化的诊断和预后方面具有巨大的潜力,可以实现精确的肝病学。
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引用次数: 0
Recommendations for establishing metrological traceability for in vitro diagnostic measurement procedures intended to be used for whole blood samples. 建立用于全血样本的体外诊断测量程序的计量可追溯性的建议。
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-12 DOI: 10.1016/j.cca.2026.120944
Jesper V Johansen, Cas Weykamp, Elizabeth Barczak, Kevin Horan, Sverre Sandberg, Liesbet Deprez, Vincent Delatour, Mauro Panteghini, Neil Greenberg, Jeffrey Budd, Finlay MacKenzie, W Greg Miller

In vitro diagnostic measurement procedures (IVD-MPs) are central to clinical decision-making. Consistent interpretation across different IVD-MPs and laboratories depends on equivalence of measurement results. Equivalence of measurement results is achieved by establishing metrological traceability to higher-order references for IVD-MPs. Commutable secondary certified reference materials (CRMs) play an essential role in the metrological traceability of many IVD-MPs. However, due to their instability and inhomogeneity, whole blood (WB) samples are often not suited as source material for preparation of CRMs making secondary CRMs commutable with WB clinical samples (CSs) very challenging to produce. This report describes scenarios for establishing metrological traceability of IVD-MPs intended to measure WB CSs: i) When secondary CRMs are available and can be measured by the WB IVD-MP. If these CRMs are not commutable due to differences in matrix with WB CSs, a noncommutability bias correction may be established and implemented in the calibration hierarchy; ii) When no secondary CRM is available but WB CSs with a value assigned by a reference or other measurement procedure (MP) can be obtained, these WB CSs can be used directly in the place of a commutable secondary CRM in the calibration hierarchy; iii) When no secondary CRM is available and WB CSs with a reference value or other MP assigned value cannot be obtained. The guidance provided supports laboratories, manufacturers and other stakeholders in selecting and implementing appropriate calibration hierarchies, thereby improving the reliability of measurements on WB CSs.

体外诊断测量程序(IVD-MPs)是临床决策的核心。不同IVD-MPs和实验室之间的一致解释取决于测量结果的等效性。通过建立IVD-MPs对高阶参考文献的计量溯源性,实现了测量结果的等效性。可交换的二级认证标准物质(CRMs)在许多IVD-MPs的计量可追溯性中起着至关重要的作用。然而,由于其不稳定性和不均匀性,全血(WB)样本通常不适合作为制备红细胞的原料,这使得与血清临床样本(CSs)可交换的次级红细胞的生产非常具有挑战性。本报告描述了建立用于测量WB CSs的IVD-MPs的计量可追溯性的场景:i)当二级crm可用并且可以由WB IVD-MP测量时。如果这些crm由于矩阵与WB CSs的差异而不可交换,则可以在校准层次结构中建立并实施不可交换偏置校正;ii)当没有辅助CRM,但可以获得由参考或其他测量程序(MP)指定的值的WB CSs时,这些WB CSs可以直接用于校准层次结构中可交换的辅助CRM;iii)当没有二级CRM可用且无法获得具有参考值或其他MP指定值的WB CSs时。提供的指南支持实验室、制造商和其他利益相关者选择和实施适当的校准层次结构,从而提高WB CSs测量的可靠性。
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引用次数: 0
Extracellular vesicles in cardiovascular disease: Biomarkers, therapeutic applications, and drug delivery strategies. 心血管疾病中的细胞外囊泡:生物标志物、治疗应用和药物递送策略。
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-11 DOI: 10.1016/j.cca.2026.120972
Qamar Abuhassan, Amirali Salajegheh, Faris Anad Muhammad, Ali Fawzi Al-Hussainy, Tushar B Gajjar, Malathi Hanumanthayya, Sandeep Kumar Shukla, Rajashree Panigrahi, Neeraj Bainsal, Djamila Polatova, Hayder Naji Sameer, Rasim M Salih, Mohaned Adil

Extracellular vesicles (EVs) have emerged as pivotal mediators of intercellular communication in cardiovascular disease (CVD), influencing inflammation, thrombosis, fibrosis, angiogenesis, and cardiac remodeling through the transfer of proteins, lipids, and RNAs. The presence of EVs in virtually all biofluids and their cargo's close linkage to cellular activation or injury make EVs attractive noninvasive biomarkers for CVD diagnosis, prognosis, and therapy monitoring, with circulating EV signatures reported in myocardial infarction, heart failure, atherosclerosis, and valvular and cardiomyopathic disorders. Parallel advances highlight EVs as cell-free therapeutic agents, recapitulating key paracrine benefits of stem and progenitor cell therapies while avoiding issues of low engraftment and arrhythmogenic risk. In addition to their endogenous activity, both native and engineered EVs are being actively developed as drug delivery platforms, offering biocompatibility, immune stealth, and the capacity to cross biological barriers, with promising data for targeted delivery to the ischemic myocardium and atherosclerotic plaques. Engineering strategies, including surface functionalization, controlled cargo loading, and combination with biomaterials such as hydrogels, can increase cardiac homing, prolong circulation, and improve on-target efficacy. Despite this promise, major hurdles remain: heterogeneity of EV subtypes, lack of standardized isolation and characterization workflows, low production yields, incomplete pharmacokinetic understanding, and unresolved regulatory classification. Addressing these limitations through multi-omics, advanced bioengineering, scalable bioprocessing, and rigorously designed clinical trials will be critical to integrate EV-based biomarkers, therapeutics, and delivery systems into cardiovascular precision medicine.

细胞外囊泡(EVs)已成为心血管疾病(CVD)细胞间通讯的关键介质,通过蛋白质、脂质和rna的转移影响炎症、血栓形成、纤维化、血管生成和心脏重构。在几乎所有的生物体液中都存在EV,并且它们所携带的物质与细胞活化或损伤密切相关,这使得EV成为CVD诊断、预后和治疗监测的无创生物标志物,在心肌梗死、心力衰竭、动脉粥样硬化、瓣膜病和心肌病中都有循环EV特征的报道。平行的进展强调了ev作为无细胞治疗剂,概括了干细胞和祖细胞治疗的关键旁分泌益处,同时避免了低植入和心律失常风险的问题。除了内源性活性外,天然ev和工程ev都被积极开发为药物递送平台,具有生物相容性、免疫隐身性和跨越生物屏障的能力,在靶向递送缺血性心肌和动脉粥样硬化斑块方面有很好的数据。工程策略,包括表面功能化,控制货物装载,以及与生物材料(如水凝胶)的结合,可以增加心脏归一化,延长循环,提高靶向疗效。尽管前景看好,但主要障碍仍然存在:EV亚型的异质性、缺乏标准化的分离和表征工作流程、低产量、不完整的药代动力学理解以及未解决的监管分类。通过多组学、先进的生物工程、可扩展的生物处理和严格设计的临床试验来解决这些限制,对于将基于ev的生物标志物、治疗方法和输送系统整合到心血管精准医学中至关重要。
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引用次数: 0
Beyond cholesterol: targeting inflammatory biomarkers in cardiovascular disease. 超越胆固醇:针对心血管疾病中的炎症生物标志物。
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-09 DOI: 10.1016/j.cca.2026.120966
Qamar Abuhassan, Tamara Nazar Saeed, Ali Fawzi Al-Hussainy, Jalpa R Patel, K V Jamuna, Vandana Tripathi, Samir Sahoo, Neeraj Bainsal, Djamila Polatova, Hayder Naji Sameer, Rasim M Salih, Mohaned Adil

Cardiovascular disease (CVD) remains the leading cause of morbidity and mortality worldwide, and increasing evidence has demonstrated that inflammation is a central driver of CVD initiation, progression, and clinical complications. While cholesterol-lowering therapies have transformed CVD prevention, a substantial residual inflammatory risk persists even in optimally treated patients, underscoring the need to move beyond lipid-centric paradigms. This narrative review synthesizes current knowledge on key inflammatory biomarkers including high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), myeloperoxidase (MPO), and emerging multi-omics-derived signatures and examines their mechanistic roles in atherosclerotic plaque formation, endothelial dysfunction, and thromboinflammatory pathways. We highlight evidence from major clinical trials demonstrating that targeted modulation of inflammatory pathways, such as IL-1β inhibition and colchicine therapy, can reduce cardiovascular events independent of lipid lowering. Additionally, we discuss the translational challenges and opportunities in integrating inflammatory biomarkers into risk stratification, precision therapeutics, and clinical decision-making. By highlighting CVD as a lipid-inflammatory disorder, this review emphasizes the potential of inflammation-targeted strategies to complement existing therapies and reshape future cardiovascular prevention.

心血管疾病(CVD)仍然是世界范围内发病率和死亡率的主要原因,越来越多的证据表明炎症是CVD发生、进展和临床并发症的主要驱动因素。虽然降胆固醇疗法已经改变了心血管疾病的预防,但即使在接受最佳治疗的患者中,仍然存在大量残留的炎症风险,这强调了超越以脂质为中心的范式的必要性。本文综合了目前关于关键炎症生物标志物的知识,包括高敏c反应蛋白(hsCRP)、白细胞介素-6 (IL-6)、肿瘤坏死因子-α (TNF-α)、髓过氧化物酶(MPO)和新兴的多组学衍生特征,并研究了它们在动脉粥样硬化斑块形成、内皮功能障碍和血栓炎症途径中的机制作用。我们强调了来自主要临床试验的证据,表明炎症途径的靶向调节,如IL-1β抑制和秋水仙碱治疗,可以减少心血管事件而不依赖于降脂。此外,我们还讨论了将炎症生物标志物整合到风险分层、精确治疗和临床决策中的转化挑战和机遇。通过强调CVD是一种脂质炎症性疾病,本综述强调了炎症靶向策略的潜力,以补充现有的治疗方法并重塑未来的心血管预防。
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引用次数: 0
Klotho protein and insulin resistance Klotho蛋白和胰岛素抵抗
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.cca.2026.120840
Yaqin Cai , Bin Liu , Dandan Song , Yulong Zhao , Bibo Xie , Yingping Zhang , Yuqiu Zhou
Klotho was initially identified as an anti-ageing protein expressed mainly in renal distal tubular cells and the choroid plexus. The Klotho family comprises several members, including α-Klotho (αKl), β-Klotho (βKl), Klotho-LPH related protein (KLPH; lactase-phlorizin hydrolase), and Klotho-related protein (KlrP), which perform a multitude of functions related to various physiological processes. The effects of Klotho on various ageing-related and renal diseases, such as its antiapoptotic effects, ability to reduce oxidative stress, anti-inflammatory effects, and other functions, have extensively been reviewed, suggesting the significant cardiorenal benefits of Klotho. Klotho expression deficiency promotes age-related pathology and is correlated with renal impairment. Studies have shown that serum Klotho is significantly decreased in type 2 diabetes (T2DM) and is linked to the duration of diabetes, indicating that Klotho may be involved in multiple pathological mechanisms of T2DM. Insulin resistance (IR) plays an essential role in the onset and progression of T2DM. Research has demonstrated that the expression of Kl is closely correlated with insulin secretion, insulin signaling pathways, and insulin sensitivity and may serve as a potential predictive marker for the IR and diabetes risk. We comprehensively reviewed the relevant literature in PubMed using the keywords “Klotho”, “Type 2 diabetes”, and “Insulin resistance”. This review summarizes the relationship between Klotho and IR.
Klotho最初被认为是一种主要表达于肾远端小管细胞和脉络膜丛的抗衰老蛋白。Klotho家族包括α-Klotho (αKl)、β-Klotho (βKl)、Klotho- lph相关蛋白(KLPH; lactase-phlorizin hydrolase)和Klotho相关蛋白(KlrP)等几个成员,它们在各种生理过程中发挥着多种功能。Klotho对各种衰老相关疾病和肾脏疾病的影响,如其抗凋亡作用、减少氧化应激的能力、抗炎作用和其他功能,已经被广泛地回顾,表明Klotho对心脏肾脏有显著的益处。Klotho表达缺乏促进与年龄相关的病理,并与肾脏损害相关。研究表明,2型糖尿病(T2DM)患者血清Klotho显著降低,且与糖尿病病程有关,提示Klotho可能参与T2DM的多种病理机制。胰岛素抵抗(IR)在T2DM的发生和发展中起着重要作用。研究表明,Kl的表达与胰岛素分泌、胰岛素信号通路和胰岛素敏感性密切相关,可能是IR和糖尿病风险的潜在预测指标。我们以关键词“Klotho”、“Type 2 diabetes”、“Insulin resistance”综合检索PubMed相关文献。本文就Klotho与IR的关系作一综述。
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引用次数: 0
Circulating suPAR as a noninvasive biomarker of fibrosis and immune activation in autoimmune liver diseases 循环suPAR作为自身免疫性肝病中纤维化和免疫激活的无创生物标志物。
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.cca.2026.120831
Fuguo Zhan , Tianbin Chen , Jun Liang , Can Liu , Mingdong Huang , Longguang Jiang

Aim

Noninvasive assessment of fibrosis in autoimmune liver diseases (AILDs) remains challenging. Soluble urokinase plasminogen activator receptor (suPAR) is a marker of systemic immune activation, but its role in AILDs is unclear. This study aimed to evaluate the diagnostic performance of circulating suPAR in AILDs and its association with fibrosis severity and immune activation.

Methods

A retrospective study included 117 patients with AILDs (n = 61), chronic hepatitis B (CHB, n = 33), metabolic dysfunction-associated steatotic liver disease (MASLD, n = 23), and 44 healthy controls. Serum suPAR was measured by chemiluminescent immunoassay. Correlations with fibrosis indices (APRI, FIB-4), liver stiffness measurement (LSM), and IgG were assessed. ROC analysis evaluated diagnostic accuracy.

Results

Serum suPAR was significantly higher in AILDs than in controls, CHB, and MASLD (median 5.16 vs. 3.58, 3.92, and 3.13 ng/mL; all P < 0.001). suPAR correlated strongly with APRI (r = 0.66), FIB-4 (r = 0.65), and LSM (r = 0.62), and modestly with IgG (r = 0.31). ROC analysis demonstrated robust discrimination between AILDs and controls (AUC = 0.839), CHB (AUC = 0.724), and MASLD (AUC = 0.944). Patients with higher suPAR levels exhibited more advanced fibrosis and greater biochemical evidence of liver injury.

Conclusions

Circulating suPAR is elevated in AILDs, reflecting fibrosis and immune activation. suPAR provides complementary, antibody-independent diagnostic value and may serve as a noninvasive biomarker for differentiating AILDs from CHB and MASLD in clinical practice.
目的:自身免疫性肝病(AILDs)纤维化的无创评估仍然具有挑战性。可溶性尿激酶纤溶酶原激活剂受体(suPAR)是全身免疫激活的标志物,但其在AILDs中的作用尚不清楚。本研究旨在评估循环suPAR在AILDs中的诊断性能及其与纤维化严重程度和免疫激活的关系。方法:回顾性研究纳入117例AILDs( = 61)、慢性乙型肝炎(CHB, = 33)、代谢功能障碍相关脂肪变性肝病(MASLD, = 23)患者和44例健康对照。采用化学发光免疫分析法测定血清suPAR。评估与纤维化指数(APRI、FIB-4)、肝硬度测量(LSM)和IgG的相关性。ROC分析评估诊断的准确性。结果:aild患者血清suPAR明显高于对照组、CHB和MASLD患者(中位数5.16 vs. 3.58、3.92和3.13 ng/mL; P均为 )结论:循环suPAR在aild患者中升高,反映了纤维化和免疫激活。suPAR提供了互补的、独立于抗体的诊断价值,可能在临床实践中作为区分aild与CHB和MASLD的非侵入性生物标志物。
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引用次数: 0
MicroRNA-CRISPR biosensors for cancer diagnostics 用于癌症诊断的MicroRNA-CRISPR生物传感器
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-01 Epub Date: 2026-01-10 DOI: 10.1016/j.cca.2026.120837
Alaa H. Habib , Ziaullah Mirza Sain , Misbahuddin Rafeeq , Mohammed Matoog Karami , Hadeel A. Alsufyani , Johar Iqbal , Kamel Chaieb , Hisham N. Altayb , Muhammad Shahid Nadeem , Fahad A. Al-Abbasi , Imran Kazmi
Circulating microRNAs (miRNAs) are promising minimally invasive biomarkers for cancer and cardiovascular disorders. However, their low sequence length, low abundance, high sequence homology (including iso-miRs), and strong matrix and preanalytical effects in biofluids require highly sensitive and robust analytical technologies. CRISPR-Cas systems, particularly Cas12a, Cas12b, Cas13a, and Cas9, offer programmable nucleic acid recognition with high mismatch discrimination combined with collateral nuclease activity, enabling versatile signal amplification through fluorescence, electrochemical, electrochemiluminescent (ECL), photoelectrochemical (PEC), colorimetric, and lateral-flow readouts. This review critically evaluates the latest advances in CRISPR-based miRNA biosensors, emphasizing their analytical performance and translational potential in clinical diagnostics across plasma/serum, saliva, whole blood, and extracellular vesicle samples. The detection limits are typically within the femtomolar to attomolar range. The requirements for clinical translation are equally influenced by factors such as sample preparation, inhibitor tolerance, miRNA panel multiplexing, quantitative readout, and reagent stability. We compared CRISPR-based workflows with RT-qPCR and digital PCR and provided a roadmap for standardization and quality control, as well as the minimal analytical and clinical validation standards required for adopting CRISPR technology in clinical chemistry laboratories.
循环microRNAs (miRNAs)是癌症和心血管疾病的有前途的微创生物标志物。然而,它们的低序列长度、低丰度、高序列同源性(包括isomirs)以及在生物流体中的强基质和分析前效应需要高度敏感和强大的分析技术。CRISPR-Cas系统,特别是Cas12a、Cas12b、Cas13a和Cas9,提供可编程的核酸识别,具有高错配辨别能力,结合侧链核酸酶活性,通过荧光、电化学、电化学发光(ECL)、光电化学(PEC)、比色和侧流读出实现多功能信号放大。这篇综述批判性地评估了基于crispr的miRNA生物传感器的最新进展,强调了它们在血浆/血清、唾液、全血和细胞外囊泡样本的临床诊断中的分析性能和转化潜力。检测限通常在飞摩尔到原子摩尔范围内。临床翻译的要求同样受到样品制备、抑制剂耐受性、miRNA面板复用、定量读数和试剂稳定性等因素的影响。我们将基于CRISPR的工作流程与RT-qPCR和数字PCR进行了比较,并为标准化和质量控制提供了路线图,以及在临床化学实验室采用CRISPR技术所需的最低分析和临床验证标准。
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引用次数: 0
Phenotype-genotype correlation in a cohort of 15 patients with hereditary ichthyosis 15例遗传性鱼鳞病患者的表型-基因型相关性研究。
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-01 Epub Date: 2026-01-15 DOI: 10.1016/j.cca.2026.120844
Yu-jie Ma , Jing Li , Yang Liu , Tian-ying Wei , Jia-en Liu , Jing Zhang , Hua-ying Hu , Kai Yang

Background

Hereditary ichthyosis is a heterogeneous group of skin disorders classified within the Mendelian disorders of cornification (MEDOC). Its primary clinical manifestations include hyperkeratosis, dryness, and scaling as a result of desquamation. Due to symptomatic overlap with other keratinization disorders, accurate differential diagnosis is essential. Furthermore, genetic diagnosis of hereditary ichthyosis provides critical information for genetic counseling and informed reproductive decision-making for affected families.

Methods

In this study, we performed a comprehensive genetic analysis on 15 probands with clinically confirmed or suspected ichthyosis. Using whole-exome sequencing (WES) and chromosomal microarray analysis (CMA), we identified potential pathogenic variants, which were subsequently verified in family members using Sanger sequencing or Quantitative fluorescent PCR (QF-PCR). The functional impact of detected missense variants was assessed by analyzing the conservation of the affected amino acid residues using the MEGA7 software.

Results

Our analysis revealed disease-associated variants in several genes, including FLG, STS, TGM1, and ABCA12. Notably, we identified four previously unreported variants: c.82 T > A (p.L28M) and c.9774C > A (p.H3258Q) in the FLG gene, and c.974C > T (p.S325F) and c.614 A > C (p.N205T) in the ABCA12 gene.

Conclusion

This study establishes a clear molecular diagnosis for the enrolled ichthyosis patients. The findings expand the known variant spectrum of hereditary ichthyosis, providing a solid basis for genetic counseling and valuable insights for future reproductive planning in these families.
背景:遗传性鱼鳞病是一种异质性皮肤病,属于孟德尔角化病(MEDOC)。其主要临床表现包括角化过度、干燥和脱屑引起的脱屑。由于与其他角化疾病的症状重叠,准确的鉴别诊断是必不可少的。此外,遗传性鱼鳞病的遗传诊断为受影响家庭的遗传咨询和知情生殖决策提供了重要信息。方法:本研究对15例临床确诊或疑似鱼鳞病的先证者进行了全面的遗传分析。利用全外显子组测序(WES)和染色体微阵列分析(CMA),我们确定了潜在的致病变异,随后使用Sanger测序或定量荧光PCR (QF-PCR)在家族成员中进行了验证。利用MEGA7软件分析受影响氨基酸残基的保守性,评估检测到的错义变异对功能的影响。结果:我们的分析揭示了几种基因的疾病相关变异,包括FLG、STS、TGM1和ABCA12。值得注意的是,我们确定了四个以前未报告的变体:c.82 T > (p.L28M)和c.9774C > FLG基因(p.H3258Q),和c.974C > T (p.S325F)和c.614 一 > C (p.N205T) ABCA12基因。结论:本研究为纳入的鱼鳞病患者建立了明确的分子诊断。研究结果扩大了已知的遗传性鱼鳞病变异谱,为遗传咨询提供了坚实的基础,并为这些家庭未来的生殖计划提供了有价值的见解。
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引用次数: 0
Clinical utilization of beta-hydroxybutyrate and comparison with urine ketones in a quaternary care health system -羟基丁酸酯与尿酮在四级保健系统中的临床应用及比较
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.cca.2026.120838
Maxwell L. Harsha , Mary Ann Ness , Mark A. Marzinke
Blood beta-hydroxybutyrate (BHB) and urine ketones (UK) are key biomarkers for assessing ketosis, including life-threatening diabetic ketoacidosis (DKA). BHB is the primary ketone produced during ketotic states and shows greater sensitivity and specificity than UK, which do not detect BHB. Current professional guidelines recommend BHB testing over UK for assessing DKA. This study retrospectively examined the utilization of serum BHB and its clinical performance compared to UK over a one-year period within our quaternary care healthcare system.
BHB ordering metrics and patient demographics were obtained from the electronic health record system between November 1, 2023, and October 31, 2024. The clinical performance of BHB compared to UK was assessed through concordance analysis of specimens collected within one hour of each other, alongside comparisons to other serum analytes and chart review of patients with discordant BHB and UK results.
During the one-year period, our academic medical center's laboratory performed 3235 BHB tests from 2011 unique patients. The majority of tests were performed on adults over 60 years of age (42%) in high-acuity settings (64%), and for patients exhibiting DKA symptoms (86%). Concordance analysis revealed that 24% of BHB and UK contemporaneously ordered results were discordant, with the majority showing elevated BHB concentrations and normal UK results. Assessment of this discordant group suggested that kidney function may may be a driving factor of observed discrepancies.
These findings align with existing guidelines and highlight the need for further investigation of BHB utilization in specific populations, such as surgical and medically complex patients.
血液β -羟基丁酸酯(BHB)和尿酮(UK)是评估酮症的关键生物标志物,包括危及生命的糖尿病酮症酸中毒(DKA)。BHB是在酮症状态下产生的主要酮,比UK具有更高的敏感性和特异性,而UK没有检测到BHB。目前的专业指南建议在英国进行BHB测试来评估DKA。本研究回顾性检查了血清BHB的利用率及其临床表现,与英国在我国四级医疗保健系统的一年期间进行了比较。从2023年11月1日至2024年10月31日期间的电子健康记录系统中获得BHB订购指标和患者人口统计数据。BHB与UK的临床表现是通过一小时内采集标本的一致性分析,以及与其他血清分析物的比较和BHB与UK结果不一致的患者的图表回顾来评估的。在一年的时间里,我们学术医学中心的实验室对2011例独特患者进行了3235次BHB检测。大多数测试是在60岁以上的成年人(42%)和有DKA症状的患者(86%)中进行的。一致性分析显示24%的BHB和UK同时排序结果不一致,大多数显示BHB浓度升高而UK结果正常。对这一不一致组的评估表明,肾功能可能是观察到的差异的驱动因素。这些发现与现有指南一致,并强调需要进一步调查BHB在特定人群中的使用情况,例如手术和医学复杂的患者。
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引用次数: 0
Consistency study of IGF-1 detection by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and chemiluminescence immunoassay (CLIA) 基质辅助激光解吸/电离飞行时间质谱(MALDI-TOF MS)和化学发光免疫分析法(CLIA)检测IGF-1的一致性研究
IF 2.9 3区 医学 Q2 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2026-03-01 Epub Date: 2026-01-11 DOI: 10.1016/j.cca.2026.120835
Wu Yan , Ruifang Shi , Wen Zheng , Wentao Yang , Francis Manyori Bigambo , Wei Pan , Wenjing Zhang , Xu Wang

Background

Insulin-like Growth Factor I (IGF-1) is crucial for growth, metabolism, and cell proliferation. Its detection is significant for diagnosing and monitoring various diseases. Chemiluminescence immunoassay (CLIA) is commonly used for IGF-1 detection but is prone to interference and variability. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) offers higher specificity and sensitivity but is less clinically applied. This study compared the consistency of serum IGF-1 levels detected by MALDI-TOF MS and CLIA.

Methods

A total of 660 serum samples from healthy individuals aged 0 to 90 years were included and analyzed using MALDI-TOF MS and CLIA methods. Initially, the MALDI-TOF MS results for the full cohort were assessed for agreement with age- and sex-specific reference intervals provided by the CLIA kit. Subsequently, a subset of 108 participants underwent paired testing under identical conditions to evaluate method comparability. The consistency between the two methods was evaluated using linear regression, the intraclass correlation coefficient (ICC), and Bland-Altman analysis.

Results

In most age groups, the results of IGF-1 concentration measured by MALDI-TOF MS fell within the reference range established by CLIA. A strong correlation (R2 = 0.982) was observed between the two methods, with the regression equation defined as IGF-1CLIA = 0.972 × IGF-1MALDI-TOF MS + 5.041. The correlation coefficients were 0.994 in children and 0.985 in adults (P < 0.001), and ICC values exceeded 0.80, indicating high consistency. Bland-Altman analysis showed a mean difference of −0.25 ng/mL, with 95% limits of agreement ranging from −24.54 to 24.04 ng/mL, which falls within the clinically acceptable range.

Conclusions

MALDI-TOF MS shows good consistency with CLIA in detecting serum IGF-I levels, providing evidence for its clinical application.
背景:胰岛素样生长因子I (IGF-1)对生长、代谢和细胞增殖至关重要。它的检测对各种疾病的诊断和监测具有重要意义。化学发光免疫分析法(CLIA)通常用于IGF-1检测,但容易受到干扰和变化。基质辅助激光解吸/电离飞行时间质谱(MALDI-TOF MS)具有较高的特异性和敏感性,但临床应用较少。本研究比较了MALDI-TOF MS和CLIA检测血清IGF-1水平的一致性。方法:采用MALDI-TOF MS和CLIA方法对660例0 ~ 90 岁健康人的血清样本进行分析。最初,对整个队列的MALDI-TOF MS结果进行评估,以确定其与CLIA试剂盒提供的年龄和性别特异性参考区间是否一致。随后,108名参与者在相同条件下进行配对测试,以评估方法的可比性。采用线性回归、类内相关系数(ICC)和Bland-Altman分析评价两种方法的一致性。结果:在大多数年龄组中,MALDI-TOF MS测定的IGF-1浓度均在CLIA建立的参考范围内。两种方法之间存在较强的相关性(R2 = 0.982),回归方程定义为IGF-1CLIA = 0.972 × IGF-1MALDI-TOF MS + 5.041。结论:MALDI-TOF MS与CLIA检测血清IGF-I水平具有较好的一致性,为其临床应用提供了依据。
{"title":"Consistency study of IGF-1 detection by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and chemiluminescence immunoassay (CLIA)","authors":"Wu Yan ,&nbsp;Ruifang Shi ,&nbsp;Wen Zheng ,&nbsp;Wentao Yang ,&nbsp;Francis Manyori Bigambo ,&nbsp;Wei Pan ,&nbsp;Wenjing Zhang ,&nbsp;Xu Wang","doi":"10.1016/j.cca.2026.120835","DOIUrl":"10.1016/j.cca.2026.120835","url":null,"abstract":"<div><h3>Background</h3><div>Insulin-like Growth Factor I (IGF-1) is crucial for growth, metabolism, and cell proliferation. Its detection is significant for diagnosing and monitoring various diseases. Chemiluminescence immunoassay (CLIA) is commonly used for IGF-1 detection but is prone to interference and variability. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) offers higher specificity and sensitivity but is less clinically applied. This study compared the consistency of serum IGF-1 levels detected by MALDI-TOF MS and CLIA.</div></div><div><h3>Methods</h3><div>A total of 660 serum samples from healthy individuals aged 0 to 90 years were included and analyzed using MALDI-TOF MS and CLIA methods. Initially, the MALDI-TOF MS results for the full cohort were assessed for agreement with age- and sex-specific reference intervals provided by the CLIA kit. Subsequently, a subset of 108 participants underwent paired testing under identical conditions to evaluate method comparability. The consistency between the two methods was evaluated using linear regression, the intraclass correlation coefficient (ICC), and Bland-Altman analysis.</div></div><div><h3>Results</h3><div>In most age groups, the results of IGF-1 concentration measured by MALDI-TOF MS fell within the reference range established by CLIA. A strong correlation (<em>R</em><sup>2</sup> = 0.982) was observed between the two methods, with the regression equation defined as IGF-1<sub>CLIA</sub> = 0.972 × IGF-1<sub>MALDI-TOF MS</sub> + 5.041. The correlation coefficients were 0.994 in children and 0.985 in adults (<em>P</em> &lt; 0.001), and ICC values exceeded 0.80, indicating high consistency. Bland-Altman analysis showed a mean difference of −0.25 ng/mL, with 95% limits of agreement ranging from −24.54 to 24.04 ng/mL, which falls within the clinically acceptable range.</div></div><div><h3>Conclusions</h3><div>MALDI-TOF MS shows good consistency with CLIA in detecting serum IGF-I levels, providing evidence for its clinical application.</div></div>","PeriodicalId":10205,"journal":{"name":"Clinica Chimica Acta","volume":"583 ","pages":"Article 120835"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145965273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Clinica Chimica Acta
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