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Thyroglobulin mRNA ectopic expression was an excellent marker to detect lymph node metastasis for patients with papillary thyroid cancer
Pub Date : 2025-01-08 DOI: 10.1002/ctd2.70029
Wen-Hua Du, Ying-Chao Chen, Ning Jin, Yuan-yuan Zhang, Bao-Lan Ji, Jing Wu, Feng-Yao Wu, Shuang-Xia Zhao, Bing Han, Huai-Dong Song, Mei Dong

Objective

To investigate whether the mRNA expression of thyroglobulin (TG) and TSH receptor (TSHR) in lymph node could be used to diagnose lymph node metastasis in patients with papillary thyroid cancer (PTC).

Subjects and methods

Around 156 paraffin samples of lymph nodes from 89 patients with PTC after surgery were collected, and the expressions of TG and TSHR mRNA were detected by nested qPCR.

Results

Compared with the results of confirmed histopathology, 86 out of 87 tissues of lymph nodes metastasis ectopically expressed TG mRNA, while 66 out of 69 tissues of non-metastasis lymph nodes did not express the TG mRNA. The specificity and sensitivity of TG mRNA measurement for detecting the lymph node metastasis were 95.65% and 98.85%, as effective as the first postoperative histopathology. However, the specificity and sensitivity of TSHR mRNA measurement were 92.75% and 85.06%, respectively. The accuracy of TG, TSHR mRNA measurement and the first postoperative histopathology were 97.44%, 88.46% and 95.51%, with the positive predictive rate (PPR) 96.63%, 93.67%, and 98.78%, respectively, negative predictive rate (NPR) 98.51%, 83.12% and 91.89%, respectively, as well as Youden's index 0.95, 0.78 and 0.92.

Conclusions

TG mRNA ectopic expression in the lymph node might be an excellent marker to diagnose the lymph node metastasis for patients with PTCs.

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引用次数: 0
Recent advances in mitochondrial replacement therapy and its future expectations
Pub Date : 2025-01-06 DOI: 10.1002/ctd2.70010
Qifeng Lyu, Weiwei Zou, Taosheng Huang

The prevention of mitochondrial diseases is particularly important due to the lack of specific therapies. Therefore, mitochondrial replacement therapy (MRT) is expected to be a technology to prevent mitochondrial diseases. Admittedly, this technology sparked a lot of controversy and discussion. In this article, we review the recent advances in MRT, discuss its safety and ethical issues, and finally explore its potential to completely block the inheritance of mitochondrial diseases.

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引用次数: 0
Roads diverged in a wood: Proteins and RNAs encoded by cytochrome b (CYTB) gene in health and disease
Pub Date : 2025-01-03 DOI: 10.1002/ctd2.70026
Cijie Du, Baodan Chen, Yile Huang, Wenxi Liang, Ying Hua Su, Xingguo Liu

Background

The cytochrome b (CYTB) gene, a crucial component of the mitochondrial genome, plays a multifaceted role in cellular metabolism, energy production and various biological processes.

Main body

It is well known that the CYTB gene encodes a subunit of complex III in the electron transport chain, which is vital for the oxidative phosphorylation process and ATP generation. Various studies report that the CYTB gene not only encodes a core protein in the mitochondrial respiratory chain but also produces a long non-coding RNA called lncCYTB, which participates in a variety of physiological and pathological processes. Inspiringly, a study has recently revealed that the CYTB gene also encodes a novel 187 amino acid long polypeptide, CYTB-187AA, a mitochondrial DNA-encoded protein produced by cytosolic translation and important for early mammalian development.

Conclusion

This review will provide insight into the functional and expression properties of the CYTB gene, as well as its unique non-coding RNA signature, and describe the diseases associated with the CYTB gene, ranging from mitochondrial dysfunction to more complex genetic disorders.

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引用次数: 0
The FACTs trial for Fabry disease highlights the promise and challenges of gene therapy
Pub Date : 2025-01-02 DOI: 10.1002/ctd2.70028
Jeffrey A. Medin, Michael L. West
<p>Gene therapy studies in Fabry disease (FD) are proceeding utilising either lentivirus (LV) or adeno-associated virus (AAV) vectors with either ex vivo or in vivo transductions, respectively. In the FACTs (Fabry Disease Clinical Research and Therapeutics) gene therapy trial,<span><sup>1, 2</sup></span> five male patients with classical FD (aged 29–48 years) received autologous LV-transduced CD34+ haematopoietic stem/progenitor cells (HSPCs). Cells were transduced ex vivo with a recombinant LV harbouring the cDNA for human α-galactosidase A (α-gal A) and returned to non-myeloablated hosts who had received low-dose melphalan. Cells engrafted well and polyclonal haematopoiesis was observed.<span><sup>3</sup></span> In FD, as with a number of lysosomal storage disorders (LSDs), the overexpressed hydrolase can be used by primary corrected cells and can also be secreted, enabling uptake via a mannose-6-phosphate receptor into bystander cells. This was the rationale for targeting HSPCs as they, and their progeny, can circulate and thereby deliver the corrective enzyme systemically. In contrast to enzyme therapy (ET), this approach utilised a single infusion rather than continual biweekly treatments. This single infusion of LV-transduced cells led to continuous production of the α-gal A<span><sup>1</sup></span> rather than variable peaks and troughs of activity as is seen with ET. The promise and challenges in gene therapy for amelioration of single-gene defects are highlighted by this study (See Figure 1).</p><p>The 5-year data show that this LV-based gene therapy was safe and impactful.<span><sup>1</sup></span> Four of the five patients went home the same day as their cell infusions. Febrile neutropenia was observed in one patient; another developed a PICC line infection. These were the only two severe adverse events. All patients achieved sufficient α-gal A activity that they technically did not have FD and were eligible to pause their ET. Three patients stopped ET and remained off for between 3 and 5 years duration. Other benefits were also observed: three of the patients had IgG-based antibody titres against α-gal A. In each case, these titres were reduced to background following the gene therapy and remained there for all 5 years. This was likely due to the conditioning regimen or to tolerisation generated by continual production of low levels of α-gal A from LV-transduced cells. Plasma globotriaosylsphingosine, an important biomarker, was also decreased in four of five patients. Further, estimated glomerular filtration rate, proteinuria and left ventricular mass index stabilised in most patients.</p><p>After 5 years, no haematopoietic (or any other) malignancies have been seen in our study. This mirrors data to March 2022 in the entire gene therapy field when recombinant LV were employed.<span><sup>4</sup></span> However, three recent trials contrast this situation.<span><sup>5</sup></span> Haematological cancers developed in seven out of 67 pat
{"title":"The FACTs trial for Fabry disease highlights the promise and challenges of gene therapy","authors":"Jeffrey A. Medin,&nbsp;Michael L. West","doi":"10.1002/ctd2.70028","DOIUrl":"https://doi.org/10.1002/ctd2.70028","url":null,"abstract":"&lt;p&gt;Gene therapy studies in Fabry disease (FD) are proceeding utilising either lentivirus (LV) or adeno-associated virus (AAV) vectors with either ex vivo or in vivo transductions, respectively. In the FACTs (Fabry Disease Clinical Research and Therapeutics) gene therapy trial,&lt;span&gt;&lt;sup&gt;1, 2&lt;/sup&gt;&lt;/span&gt; five male patients with classical FD (aged 29–48 years) received autologous LV-transduced CD34+ haematopoietic stem/progenitor cells (HSPCs). Cells were transduced ex vivo with a recombinant LV harbouring the cDNA for human α-galactosidase A (α-gal A) and returned to non-myeloablated hosts who had received low-dose melphalan. Cells engrafted well and polyclonal haematopoiesis was observed.&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt; In FD, as with a number of lysosomal storage disorders (LSDs), the overexpressed hydrolase can be used by primary corrected cells and can also be secreted, enabling uptake via a mannose-6-phosphate receptor into bystander cells. This was the rationale for targeting HSPCs as they, and their progeny, can circulate and thereby deliver the corrective enzyme systemically. In contrast to enzyme therapy (ET), this approach utilised a single infusion rather than continual biweekly treatments. This single infusion of LV-transduced cells led to continuous production of the α-gal A&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; rather than variable peaks and troughs of activity as is seen with ET. The promise and challenges in gene therapy for amelioration of single-gene defects are highlighted by this study (See Figure 1).&lt;/p&gt;&lt;p&gt;The 5-year data show that this LV-based gene therapy was safe and impactful.&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; Four of the five patients went home the same day as their cell infusions. Febrile neutropenia was observed in one patient; another developed a PICC line infection. These were the only two severe adverse events. All patients achieved sufficient α-gal A activity that they technically did not have FD and were eligible to pause their ET. Three patients stopped ET and remained off for between 3 and 5 years duration. Other benefits were also observed: three of the patients had IgG-based antibody titres against α-gal A. In each case, these titres were reduced to background following the gene therapy and remained there for all 5 years. This was likely due to the conditioning regimen or to tolerisation generated by continual production of low levels of α-gal A from LV-transduced cells. Plasma globotriaosylsphingosine, an important biomarker, was also decreased in four of five patients. Further, estimated glomerular filtration rate, proteinuria and left ventricular mass index stabilised in most patients.&lt;/p&gt;&lt;p&gt;After 5 years, no haematopoietic (or any other) malignancies have been seen in our study. This mirrors data to March 2022 in the entire gene therapy field when recombinant LV were employed.&lt;span&gt;&lt;sup&gt;4&lt;/sup&gt;&lt;/span&gt; However, three recent trials contrast this situation.&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt; Haematological cancers developed in seven out of 67 pat","PeriodicalId":72605,"journal":{"name":"Clinical and translational discovery","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctd2.70028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exosomes and machine perfusion as a therapy to improve organ transplantation
Pub Date : 2024-12-22 DOI: 10.1002/ctd2.70025
Wayne J. Hawthorne, Rajith Amaratunga, Ahmer Hameed
<p>Cellular therapies are cutting-edge technologies that are now expanding into all spheres of medicine including transplantation. We are increasingly reliant upon marginal or less optimal donor organs for transplantation, however, to close the ever-widening gap between organ demand and supply. Such organs have higher discard rates and less ideal short and longer-term outcomes and ideally require improved organ preservation and resuscitation methods which can be utilised regardless of the jurisdiction.<span><sup>1</sup></span> Various cellular therapies are gaining significant momentum as a novel approach to reducing transplant organ ischemia/reperfusion injury (IRI), and potential improvement in graft outcomes. As seen in Figure 1, machine perfusion of organs provides the ideal setting to specifically deliver many targeted therapies to individual grafts, including therapies such as; stem cells, organoids, viral transduction, nanoparticles, and the use of exosome-based treatments.<span><sup>2</sup></span></p><p>Exosomes are small extracellular vesicles (30–150 nm in diameter), that play a unique role in cellular communication, derived from the endosomal pathway, with intraluminal vesicles being formed in multivesicular bodies and subsequently released with fusion of the plasma membrane. Unlike traditional cell-based therapies, exosomes do not contain live cells, reducing concerns about immune interaction in both the organ and subsequently recipient. In the study by Burdeyron et al.<span><sup>3</sup></span> innovatively delivered exosomes derived from porcine urine progenitor cells (UPCs) to kidneys using hypothermic and normothermic machine perfusion (HMP and NMP).</p><p>IRI is a critical challenge in transplantation, particularly impacting organs from extended criteria donors and those from donors after circulatory death. These types of organs are generally more sensitive to ischemia, with attendant magnification of injury during reperfusion, and a subsequent higher incidence of graft dysfunction/rejection.<span><sup>4</sup></span> Technologies such as HMP and NMP are variably employed by different centres to improve organ quality prior to transplantation. HMP involves the continuous circulation of a cold preservation solution through the kidney, whilst NMP involves perfusing the kidney with a warm, oxygenated solution to simulate physiological conditions. While these methods offer some protective effects, they do not completely ameliorate IRI, and significant further work is required to enhance their efficacy.<span><sup>5</sup></span></p><p>Exosomes carry bioactive molecules, including microRNAs (miRNAs), mRNAs, and proteins, which can influence cellular interaction and regulate immune activity. Exosome-based therapy can leverage the potential for intercellular communication, signalling cascades, and other physiological effects without the complexity and risks associated with administering whole cells. Studies have shown that exosomes derived f
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引用次数: 0
Molecular mechanisms underlying oesophageal cancer development triggered by chronic alcohol consumption 长期饮酒引发食道癌的分子机制
Pub Date : 2024-12-05 DOI: 10.1002/ctd2.70021
Huai Yi Chen, Chia Rou Por, Yong Kai Hong, Eason Qi Zheng Kong, Vetriselvan Subramaniyan

This review explores the mechanisms underlying alcohol-induced oesophageal carcinogenesis, including DNA damage, oxidative stress, and nutritional deficiencies. Alcohol metabolism primarily involves alcohol dehydrogenase (ADH) converting ethanol to acetaldehyde, which can cause DNA damage, inhibit repair mechanisms, and form DNA adducts thus inhibiting DNA replication. Plus, it delves into the epidemiological evidence, genetic susceptibility, epigenetic modifications, biomarkers, and preventive strategies associated with alcohol-related oesophageal cancers. Consumption of alcohol increases the risk of gastroesophageal reflux disease thus compromising mucosal integrity of the oesophagus as dysregulation of cytokines such as IL-18, TNFA, GATA3, TLR4, and CD68 expands the intercellular spaces of epithelial cells. Genetic variants, such as ADH1B rs1229984 and ALDH2 rs671, significantly influence susceptibility to alcohol-related oesophageal cancers, with these variations affecting acetaldehyde metabolism and cancer risk. Understanding these factors is crucial for early detection, effective treatment, and the development of targeted prevention strategies. Biomarkers, such as miRNA and metabolite markers, offer non-invasive methods for early detection, while advanced endoscopic techniques provide better diagnostic accuracy. Pharmacological interventions, such as statins and proton pump inhibitors, also show potential for reducing cancer progression in high-risk individuals. Despite advances, late-stage oesophageal cancer diagnoses are still common, highlighting the need for better screening and prevention. Further research, including this study, should aim to improve early detection, personalise prevention, and explore new treatments to reduce cases and enhance outcomes in alcohol-related oesophageal cancers.

本文综述了酒精诱导食管癌发生的机制,包括DNA损伤、氧化应激和营养缺乏。酒精代谢主要涉及酒精脱氢酶(ADH)将乙醇转化为乙醛,这会导致DNA损伤,抑制修复机制,形成DNA加合物,从而抑制DNA复制。此外,它还深入研究了与酒精相关的食道癌相关的流行病学证据、遗传易感性、表观遗传修饰、生物标志物和预防策略。饮酒会增加胃食管反流病的风险,从而损害食管粘膜的完整性,因为IL-18、TNFA、GATA3、TLR4和CD68等细胞因子的失调会扩大上皮细胞的细胞间隙。遗传变异,如ADH1B rs1229984和ALDH2 rs671,显著影响酒精相关食管癌的易感性,这些变异影响乙醛代谢和癌症风险。了解这些因素对于早期发现、有效治疗和制定有针对性的预防策略至关重要。生物标记物,如miRNA和代谢物标记物,为早期检测提供了非侵入性方法,而先进的内窥镜技术提供了更好的诊断准确性。药物干预,如他汀类药物和质子泵抑制剂,也显示出在高危人群中减少癌症进展的潜力。尽管取得了进展,但晚期食管癌诊断仍然很常见,这突出了更好的筛查和预防的必要性。包括本研究在内的进一步研究应致力于改善早期发现,个性化预防,并探索新的治疗方法,以减少酒精相关食管癌的病例并提高预后。
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引用次数: 0
An auxiliary diagnostic approach based on traditional Chinese medicine constitutions for older patients with frailty 基于中医体质的老年虚弱患者辅助诊断方法
Pub Date : 2024-11-25 DOI: 10.1002/ctd2.70019
Xuchao Gu, Xiaojun Wang, Yijing Yang, Kangwei Guan, Hung-Chen Chang, Dehua Liu, Wenhao Wang, Tao Wu, Peiqing He, Jiaofeng Wang, Jie Chen, Zhijun Bao

Introduction

As global population ages, frailty has surfaced as a major public health challenge. Given the heterogeneity of frailty in the clinical presentation, it is imperative to develop personalised diagnostic and treatment strategies. The traditional Chinese medicine (TCM) constitution offers notable advantages in discerning individual differences. This study aims to elucidate the association between TCM constitutions and frailty, providing insights into the application of TCM for the frailty management.

Methods

An observational study was conducted at Huadong hospital from July 2022 to November 2023. A total of 241 older patients were recruited. Each patient underwent assessments for the TCM constitution and frailty status. Comprehensive data collection encompassed medical history, biochemical indicators, bone mineral density (BMD), body composition and physical performance metrics. Plasma samples were also collected to detect levels of inflammatory factors and lymphogenesis-related factors, including IL-1β, TNF-α, VEGF-C, ANGPTL4 and ACV-A. Multi-level statistical analysis was used to establish the relationship of TCM constitutions with frailty.

Results

Amongst all participants, 54 individuals were classified as non-frail, 90 individuals as pre-frail and 97 individuals as frail. Regression analysis indicated that frailty was closely associated with four imbalanced TCM constitutions: Qi deficiency, phlegm dampness, blood stasis and Qi depression. Subsequent analysis demonstrated that Qi deficiency was associated with decreased BMD, phlegm dampness with elevated high-density lipoprotein levels, Blood stasis with elevated blood glucose levels, and Qi depression with both decreased BMD and elevated low-density lipoprotein levels. Furthermore, individuals characterised by imbalanced TCM constitutions exhibited inferior handgrip strength, walking pace, lower limb strength and higher levels of inflammatory factors and lymphogenesis-related factors compared to those with balanced TCM constitution.

Conclusion

Frailty is independently associated with Qi deficiency, phlegm dampness, blood stasis and Qi depression. Personalised diagnostic approaches based on the TCM constitution may offer valuable insights for directing treatment for older patients with frailty.

引言 随着全球人口老龄化的加剧,体弱已成为公共卫生领域的一大挑战。鉴于体弱在临床表现上的异质性,制定个性化的诊断和治疗策略势在必行。传统中医体质在辨别个体差异方面具有显著优势。本研究旨在阐明中医体质与虚弱之间的关系,为应用中医治疗虚弱提供见解。 方法 2022年7月至2023年11月在华东医院进行了一项观察性研究。共招募了 241 名老年患者。每位患者都接受了中医体质和虚弱状态评估。全面的数据收集包括病史、生化指标、骨质密度(BMD)、身体成分和体能指标。此外,还采集了血浆样本,以检测炎症因子和淋巴生成相关因子的水平,包括 IL-1β、TNF-α、VEGF-C、ANGPTL4 和 ACV-A。采用多层次统计分析确定中医体质与虚弱的关系。 结果 在所有参与者中,54 人被归类为非虚弱,90 人被归类为前期虚弱,97 人被归类为虚弱。回归分析表明,体弱与四种失衡的中医体质密切相关:气虚、痰湿、血瘀和气郁。随后的分析表明,气虚与骨密度降低有关,痰湿与高密度脂蛋白水平升高有关,血瘀与血糖水平升高有关,而气郁则与骨密度降低和低密度脂蛋白水平升高有关。此外,与中医体质平衡者相比,中医体质失衡者的手握力、步行速度、下肢力量较差,炎症因子和淋巴生成相关因子水平较高。 结论 虚弱与气虚、痰湿、血瘀和气郁有独立关联。基于中医体质的个性化诊断方法可为指导老年体弱患者的治疗提供有价值的见解。
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引用次数: 0
Application of machine learning-based phenotyping in individualized fluid management in critically ill patients with heart failure 基于机器学习的表型分析在心力衰竭重症患者个体化输液管理中的应用
Pub Date : 2024-11-25 DOI: 10.1002/ctd2.70020
Chengjian Guan, Bing Xiao
<p>Heart failure (HF) is a major public health challenge, with fluid management being one of the most critical aspects of treatment. Fluid management is particularly a complex and challenging issue in critically ill patients, especially when cardiac pump function fails to meet the body's needs.<span><sup>1-3</sup></span> Clinicians often face multiple challenges when formulating fluid management strategies, including significant individual variations, complex dynamic changes, and diverse monitoring indicators. Most current intervention studies targeting fixed fluid management in HF patients have reported negative outcomes,<span><sup>4, 5</sup></span> reflecting the heterogeneity of severe HF patients and highlighting the urgent need for precision medicine. Therefore, our study aims to identify distinct characteristics of critically ill HF patients through retrospective analyses and develop targeted treatment strategies based on the optimal fluid balance ranges identified by longitudinal infusion data for each patient phenotype (Figure 1).<span><sup>6</sup></span></p><p>The advancement of artificial intelligence and machine learning (ML) technology offers innovative solutions to these challenges. Unsupervised ML has emerged as a powerful tool in medical research, capable of identifying patterns in complex, high-dimensional data without explicit labelling. The patient data were extracted from two intensive care unit databases, integrating both numerical and categorical variables to maintain comprehensive clinical characteristics. The K-Prototypes algorithm was selected for its ability to effectively combine the principles of K-Means and K-Modes principles, thereby enhancing clustering quality by considering the differential contributions of various variable types to the total distance between samples.<span><sup>7</sup></span> Furthermore, fluid management is a dynamic process, where daily interventions and test results can affect subsequent outcomes. To address this, we analyzed 7-day fluid balance records using the G-formula parameter.<span><sup>8</sup></span> a sophisticated statistical approach to eliminate confounding effects between time-varying exposures and outcomes, thus providing more reliable clinical guidance.</p><p>Our analysis identified four distinct phenotypes of HF patients, each exhibiting significant differences in clinical characteristics and prognosis. The optimal fluid balance ranges for each phenotype aligned closely with their distinct clinical features. Phenotype A, characterized by severe inflammation and aggressive interventions including high rates of vasoactive drug use and mechanical ventilation, showed optimal outcomes with a moderate fluid balance of between –1000 and 500 mL per day. This finding indicates that a positive fluid balance is associated with adverse effects on mechanical ventilation duration and mortality. Phenotype C, despite having milder clinical parameters but combined with advanced age and multiple c
心力衰竭(HF)是一项重大的公共卫生挑战,而体液管理是治疗中最关键的环节之一。1-3 临床医生在制定液体管理策略时往往面临多重挑战,包括显著的个体差异、复杂的动态变化和多样的监测指标。目前大多数针对高血压患者固定液体管理的干预研究都报告了负面结果,4、5 反映了严重高血压患者的异质性,并突出了对精准医疗的迫切需求。因此,我们的研究旨在通过回顾性分析确定重症 HF 患者的不同特征,并根据纵向输液数据为每种患者表型确定的最佳液体平衡范围(图 1)制定有针对性的治疗策略6。6 人工智能和机器学习(ML)技术的发展为这些挑战提供了创新性的解决方案。无监督 ML 已成为医学研究的强大工具,它能够在没有明确标签的情况下识别复杂的高维数据中的模式。患者数据是从两个重症监护室数据库中提取的,整合了数字变量和分类变量,以保持全面的临床特征。之所以选择 K-Prototypes 算法,是因为该算法能够有效结合 K-Means 和 K-Modes 原理,从而通过考虑各种变量类型对样本间总距离的不同贡献来提高聚类质量。我们的分析确定了四种不同的高血压患者表型,每种表型在临床特征和预后方面都有显著差异。每种表型的最佳体液平衡范围与其不同的临床特征密切相关。表型 A 以严重炎症和积极干预(包括大量使用血管活性药物和机械通气)为特征,其最佳预后为每天-1000 至 500 毫升的中度体液平衡。这一发现表明,正的体液平衡与机械通气持续时间和死亡率的不利影响相关。表型 C 虽然临床指标较轻,但合并高龄和多种并发症,死亡率较高,需要严格限制液体摄入(每天-1500 至 500 毫升),这突出表明了年龄和体弱对高频预后的重要影响。为了便于临床应用,我们开发了一种简化的分类方法,使用通过特征筛选确定的九个临床指标:年龄、血尿素氮、血细胞比容、血管活性药物使用、肾脏疾病、肌酐、舒张压、机械通气状态和阴离子间隙。XGBoost 模型在内部和外部验证中均表现出良好的预测效果,曲线下面积值分别为 0.918 至 0.943 和 0.802 至 0.907。我们开发了一种基于网络的分型工具,以方便床旁快速识别表型,从而为液体管理的及时决策提供支持。虽然我们目前的研究结果显示出了良好的前景,但仍有必要在几个关键领域开展进一步的研究和技术进步。首先,前瞻性验证研究至关重要,应包括不同的患者群体和医疗环境,以确保研究结果的广泛适用性。其次,新型生物标记物的整合为提高表型分类的准确性提供了机会。除了传统的临床参数外,新型分子标记物、遗传特征和复杂的成像指标可以让人们更深入地了解疾病机制和治疗反应。从技术角度来看,不断完善预测模型仍然至关重要。应用先进的 ML 架构,包括深度学习和集合方法,有可能提高预测的准确性和模型的稳健性。
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引用次数: 0
Use of short-term cervical collars is associated with emotional discomfort 使用短期颈椎项圈与情绪不适有关
Pub Date : 2024-11-08 DOI: 10.1002/ctd2.70016
Abha Somesh, Jackson Catalano, Andrew Underhill, Jessica Hocking, Evan Symons, Biswadev Mitra
<p>We read with interest the manuscript on the topic of cervical collars for the management of spinal cord injuries.<span><sup>1</sup></span> Kolli et al. provide compelling evidence on the low levels of evidence for cervical collars to restrict movement and prevent worsening injury. On the contrary, evidence towards delayed recovery and worse pain profiles suggest adverse effects from collar use.<span><sup>1</sup></span></p><p>The association of long-term collar use with poorer quality of life was highlighted.<span><sup>1</sup></span> especially in older adults.<span><sup>2, 3</sup></span> However, patient experiences of wearing cervical collars for shorter times in an emergency department (ED) setting have not been previously evaluated. The current standard of care in Victoria, Australia is the use of rigid foam cervical collars for spinal immobilisation in a patient with suspected cervical spine injury.<span><sup>4</sup></span></p><p>We conducted a pilot prospective cohort study at an adult major trauma centre in Australia which records approximately 10 000 trauma presentations a year. The aim of this study was to evaluate patients’ experiences in a short-term cervical collar and the purpose of the study was to generate a hypothesis of harm. Short-term was defined as the period between application of the collar and until being cleared of any cervical spine injuries, which is less than 12 h.</p><p>A total of 20 participants enrolled by convenience sampling who were managed in cervical collars awaiting clearance with a Glasgow Coma Scale rating of 15, and who could converse in English formed the exposure group. A non-exposure group of 20 participants included adult patients not in cervical collars awaiting the results of investigations in the ED. All 40 participants were admitted to the short-stay unit in the ED with an aim to be discharged home in 24 h which suggests they all had low disease severity. The groups were matched for age (± 2 years) and gender. All 40 participants were assessed at a single time point using the Patient Evaluation of Emotional Comfort Experience (PEECE) questionnaire.<span><sup>5</sup></span> This tool evaluates positive mental well-being elements like emotional comfort rather than negative health outcomes.</p><p>Each component of the PEECE score and the total were summarised using medians (inter-quartile range) and differences were compared using the Wilcoxon Rank Sum test. A <i>p</i>-value of <.05 was defined to be statistically significant. All analyses were conducted using Stata v18.0.</p><p>The total PEECE score among patients with a collar was 30.5 (interquartile range [IQR] 21–39.5), significantly lower than patients without a collar (total score 38.5; IQR 32–41.5, <i>p</i> = .016) (Figure 1). With a collar in place, patients reported significantly lower scores for positive emotions of being at ease, relaxed or wanting to smile. In addition, they also scored significantly lower perceptions of being valued, f
我们饶有兴趣地阅读了有关颈椎项圈治疗脊髓损伤的手稿。1 Kolli 等人提供了令人信服的证据,证明颈椎项圈在限制活动和防止损伤恶化方面作用不大。相反,有证据表明颈圈的使用会导致恢复延迟和疼痛状况恶化。1 长期使用颈圈会导致生活质量下降,1 尤其是对老年人而言。2, 3 然而,此前尚未对急诊科(ED)环境中较短时间佩戴颈圈的患者体验进行评估。在澳大利亚维多利亚州,目前的护理标准是对疑似颈椎损伤患者使用硬质泡沫颈圈进行脊柱固定。4 我们在澳大利亚的一家成人主要创伤中心开展了一项试点前瞻性队列研究,该中心每年约有 10,000 例创伤病例。这项研究的目的是评估患者在短期颈椎项圈中的体验,并提出伤害假设。短期颈圈的定义是:从戴上颈圈到颈椎损伤痊愈的时间,不超过12小时。通过方便抽样,共有20名患者加入了接触组,他们都是戴着颈圈等待痊愈的患者,格拉斯哥昏迷量表评分为15分,能用英语交谈。非暴露组有 20 人,包括在急诊室等待检查结果的未佩戴颈椎吊环的成年患者。所有40名参与者都在急诊室短期住院,目的是在24小时内出院回家,这表明他们的疾病严重程度都不高。各组的年龄(± 2 岁)和性别匹配。所有 40 名参与者均在一个时间点接受了 "患者情绪舒适体验评估"(PEECE)问卷5 的评估。该工具评估的是积极的心理健康要素,如情绪舒适度,而不是消极的健康结果。P值为 <.05为具有统计学意义。带项圈患者的 PEECE 总分为 30.5(四分位数间距 [IQR] 21-39.5),明显低于不带项圈的患者(总分 38.5;IQR 32-41.5,p = .016)(图 1)。戴上项圈后,患者在自在、放松或想笑等积极情绪方面的得分明显降低。此外,他们在被重视感、安全感或感恩感方面的得分也明显较低(表 1)。我们认识到样本量小和存在未知混杂因素的局限性。戴颈圈的患者视野有限,因为大多数患者被要求平躺,颈部不能活动。因此,除非他们对治疗有充分的了解和认识,否则可能无法理解为他们提供的所有护理。6, 7 颈椎项圈患者的控制感得分较低,而知情感和被照顾感得分较高,这表明颈椎项圈患者有特殊和独特的需求。必要时,医院对颈圈的管理需要特别关注舒适度,并经常更新进展情况。在患者卧床仰卧时,可以通过视听刺激提供情感支持。Kolli 等人1 认为,颈圈的使用可能会对某些患者群体造成伤害,不恰当的使用也可能会增加患者出现不良后果的可能性。结合我们的研究结果来看,显然有必要采取创新策略来改善对疑似或实际颈椎损伤患者的护理。由 AS 和 JC 修改想法并收集数据。手稿撰写由 AS、JC、BM 和 JH 完成。稿件由所有作者审阅和编辑。作者声明无利益冲突。本研究未获得任何资助。伦理批准由阿尔弗雷德人类研究和伦理委员会提供(项目编号 487/18)。
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引用次数: 0
Challenges and advances of immune checkpoint therapy 免疫检查点疗法的挑战与进步
Pub Date : 2024-11-04 DOI: 10.1002/ctd2.70001
Lingyu Li, Yingli Sun

Background and Objectives

Immuno-checkpoint therapy (ICT) significantly alters the clinical course of cancer patients, providing long-lasting clinical benefits and offering the potential for cure to some patients. However, response rates for different tumour types vary, and predictive biomarkers are needed to enhance patient selection for the purpose of optimising effectiveness and reducing toxicity. This has driven efforts to decipher the immune and non-immune factors that regulate ICT response.

Main Content

This review offers a thorough examination of the advantages and future challenges of immune checkpoint inhibitors in cancer therapy. Additionally, we explore ongoing efforts to address current challenges, such as guiding subsequent clinical trials, developing ICT combination therapy strategies and utilising epigenetics to enhance clinical efficacy.

Conclusion and Perspectives

Despite significant progress, ICT faces challenges including immune-related adverse events (irAEs) and resistance mechanisms. Ongoing research focuses on developing novel biomarkers, combination therapies, and epigenetic strategies to improve the efficacy and safety of ICT for cancer patients worldwide. Future studies are required to validate these findings across different tumor types and treatment settings.

背景和目的 免疫检查点疗法(ICT)可显著改变癌症患者的临床病程,提供持久的临床疗效,并为某些患者提供治愈的可能。然而,不同肿瘤类型的反应率各不相同,因此需要预测性生物标志物来加强对患者的选择,以达到优化疗效和减少毒性的目的。这促使人们努力破解调节信息和通信技术反应的免疫和非免疫因素。 主要内容 本综述深入探讨了免疫检查点抑制剂在癌症治疗中的优势和未来挑战。此外,我们还探讨了当前为应对挑战所做的努力,如指导后续临床试验、开发 ICT 联合治疗策略以及利用表观遗传学提高临床疗效。 结论与展望 尽管取得了重大进展,但 ICT 仍面临着免疫相关不良事件 (irAE) 和耐药机制等挑战。目前的研究重点是开发新型生物标记物、联合疗法和表观遗传学策略,以提高全球癌症患者使用信息和通信技术的疗效和安全性。未来的研究需要在不同的肿瘤类型和治疗环境中验证这些发现。
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引用次数: 0
期刊
Clinical and translational discovery
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