综述
全膝关节置换术(TKA)是目前治疗终末期膝关节疾病的首选方法,它能够缓解疼痛、改善畸形、恢复力线、增加膝关节活动度及提高患者生活质量。目前,关于胫骨假体旋转对线的方法很多,主要包括胫骨结节、胫骨前后轴、胫骨前皮质、自我形合技术、计算机辅助导航技术、个性化截骨技术等,它们各有优缺点,但在临床上并没有达成共识。该文主要对胫骨近端的解剖学特点和TKA中胫骨假体旋转定位的方法等方面进行综述。旨在为临床骨科医生在行TKA时,选择合适的胫骨假体旋转对线方法提供一些参考。
Total knee replacement(TKA) is currently the preferred treatment for end-stage knee disease,and it can relieve pain,improve deformity,restore strength lines,increase knee range of motion,and improve patients’ quality of life.At present,there are many methods for the rotation of alignment of tibial prosthesis,mainly including tibial tubercles,tibial anteroposterior axes,anterior tibial cortex,self-morphing technology,computer-aided navigation technology,personalized osteotomy technology,etc.Each of the methods above has its advantages and disadvantages,but there is no clinical consensus at present.This article mainly reviews the anatomical characteristics of the proximal tibia and the method of rotational positioning of tibial prosthesis in TKA,which aims to provide some reference for clinical orthopedic surgeons to select the appropriate tibial prosthesis rotation alignment method when performing TKA.
专家述评
运动捕捉技术已经广泛应用于步态分析、运动康复、动作对比、技战术分析、生物运动力学分析、损伤防护、运动装备设计研发等领域,实现了人机交互的全新体验。而步行是人类运动中最基础的动作,在生物力学研究上对异常步态进行分析能够有效改善患者治疗和康复的效果。本文总结了运动捕捉技术在各种异常步态分析中的应用,并对其优缺点进行了总结与展望。检索PubMed、Embase、EBSCO、Web of Science、中国知网,收集2018年1月至2023年12月公开发表的有关有标记运动捕捉及无标记运动捕捉在异常步态的相关研究,进行系统综述。最终纳入了22篇英文文献,这些文献主要集中在神经科学、生物医学工程和临床医学等领域,特别是在步态分析、运动捕捉技术、神经病理学和康复医学等方面的应用。这些研究为我们理解和改善各种神经系统疾病,如帕金森病、多发性硬化症和脑卒中以及骨关节炎等疾病的步态提供了宝贵的见解。利用运动捕捉来进行异常步态分析能有效地给患者提供准确的康复治疗,将结果用于临床诊断、康复规划或研究目的。异常步态分析在评估肌肉骨骼状况、神经系统疾病或干预措施的有效性方面具有重要价值。
Motion capture technology has been widely used in the fields of gait analysis,sports rehabilitation,action comparison,technical and tactical analysis,biomotor mechanics analysis,injury protection,sports equipment design and development,etc.,which realizes a brand-new experience of human-computer interaction.While walking is the most basic action in human movement,the analysis of abnormal gait on biomechanical research can effectively improve the effect of patient treatment and rehabilitation.This paper summarizes the application of motion capture technology in the analysis of various abnormal gaits,and summarizes and prospects its advantages and disadvantages.PubMed,Embase,EBSCO,Web of Science and China Knowledge Network were searched to collect related studies,openly published from January 2018 to December 2023,about labeled motion capture and unlabeled motion capture in abnormal gait for systematic review.Twenty-two English-language papers were finally included,which focused on the fields of neuroscience,biomedical engineering and clinical medicine,especially in the applications of gait analysis,motion capture technology,neuropathology and rehabilitation medicine.These studies provide valuable insights into understanding and improving gait in various neurological disorders such as Parkinson’s disease,multiple sclerosis and stroke and osteoarthritis.The use of motion capture for abnormal gait analysis can be effective in providing accurate rehabilitation to patients,using the results for clinical diagnosis,rehabilitation planning,or research purposes.Abnormal gait analysis is valuable in assessing musculoskeletal conditions,neurological disorders,or the effectiveness of interventions.
学术前沿
实体瘤对免疫治疗应答非常有限,因此,如何有效提升肿瘤免疫治疗的疗效,已成为当前肿瘤免疫治疗领域亟待解决的关键难题与挑战。髓系来源抑制性细胞(MDSCs)的趋化募集及其所介导的肿瘤免疫逃逸机制,是制约实体瘤免疫治疗效果的核心因素之一。文章深入探讨了MDSCs的起源、表型特征、其介导肿瘤免疫逃逸的具体机制,以及当前针对MDSCs的靶向治疗策略与将MDSCs靶向疗法与肿瘤免疫治疗相结合的最新研究进展。此外,文章还系统性地分析了靶向MDSCs联合免疫治疗策略所面临的关键挑战,并据此提出了MDSCs的精准靶向策略。这一策略旨在精确激活抗肿瘤免疫反应,为癌症患者提供更为个性化、高效的治疗方案,从而开启肿瘤免疫治疗领域的新纪元,为癌症治疗策略的创新与发展贡献力量。
Solid tumors exhibit a very limited response to immunotherapy.Consequently,effectively enhancing the therapeutic efficacy of tumor immunotherapy has emerged as a critical challenge and problem that urgently needs to be addressed in tumor immunotherapy.The chemotaxis and recruitment of myeloid-derived suppressor cells(MDSCs)and the tumor immune evasion mechanisms mediated by them are one of the core factors that significantly restrict the efficacy of immunotherapy for solid tumors.In this review,we discuss the origins and phenotypic characteristics of MDSCs,the specific mechanisms by which they mediate tumor immune evasion,as well as current targeted therapeutic strategies for MDSCs and the latest research progress in combining MDSC-targeted therapy with tumor immunotherapy.Furthermore,we have systematically analyzed the key challenges faced by the combination of MDSC-targeted and immunotherapy strategies,and accordingly proposed a precise targeting strategy for MDSCs.This strategy aims to precisely activate anti-tumor immune responses,providing more personalized and efficient treatment options for cancer patients,thereby opening a new era in tumor immunotherapy and contributing to the innovation and development of cancer treatment strategies.
专家述评
CCAAT增强子结合蛋白A(CEBPA)是调节血液发育过程中髓系分化和造血干祖细胞活性的关键转录因子之一。CEBPA基因突变常见于急性髓系白血病(AML)中,最近研究表明CEBPA bZIP框内单位点和经典双等位基因突变AML患者均具有类似的临床特征,已被单独划分为AML亚群。CEBPA bZIP框内突变而非传统的双等位CEBPA基因突变成为AML良好预后的分子指标,表明其在AML疾病进展和治疗预后中的重要性和特殊性。本文将从CEBPA蛋白在血液系统中的功能、CEBPA bZIP框内突变AML的临床特征与分子作用机制、以及伴CEBPA突变AML的治疗现状等方面进行综述,为进一步研究CEBPA bZIP框内突变在AML中的致病性和精准治疗新药物开发提供参考。
CCAAT enhancer-binding protein A(CEBPA)is one of the key transcription factors regulating myeloid differentiation and hematopoietic stem/progenitor cell maintenance during hematopoiesis.CEBPA gene mutations are commonly found in acute myeloid leukemia(AML).Recent studies have demonstrated that AML patients haboring single CEBPA bZIP in-frame mutations or classical bi-allelic CEBPA mutations show similar clinical features and it has been individually classified as AML subgroup.Additionally,it is CEBPA bZIP in-frame mutations rather than the traditional biallelic CEBPA mutations that have emerged as a molecular indicator of favorable prognosis for clinical AML management,suggesting its importance and specificity in AML disease progression and therapeutic prognosis.Here,we reviewed serval aspects including the hematopoietic function of CEBPA protein,the clinical features and molecular mechanisms of AML with CEBPA bZIP in-frame mutations,and the current status of the treatment of AML with CEBPA mutations,which will provide a reference for further study of the pathogenicity of CEBPA bZIP in-frame mutations in AML and the development of new drugs for precision therapy.
综述
长链非编码RNA(lncRNA)是一类长度大于200个核苷酸转录本,通过调控DNA、RNA及蛋白质的表达和功能,参与肿瘤发生、发展并发挥重要作用的RNA,近年来lncRNA成为恶性肿瘤早期诊断和预后标志物研究新的关注方向。Linc-UBC1作为一种新发现的lncRNA,在多种恶性肿瘤如肺癌、胃癌、结直肠癌、宫颈癌、卵巢癌、食管鳞癌等中异常高表达,可通过作为竞争性RNA(ceRNA)、参与信号通路等促进肿瘤细胞的增殖、迁移、侵袭、细胞周期进展、细胞凋亡和上皮间充质转化(EMT)等过程;高表达的linc-UBC1能够增加恶性肿瘤的耐药性,其表达水平与肿瘤分期、淋巴结转移和原发肿瘤远处转移呈正相关;linc-UBC1有望成为许多恶性肿瘤的新型的生物标志物、预后预测因子和治疗靶点,但其具体的调控机制仍处于研究的早期阶段,有待进一步深入研究。文章就目前linc-UBC1在恶性肿瘤发生和发展中的作用研究进展进行综述。
Long non-coding RNA(lncRNA)is a class of transcripts with a length of more than 200 nucleotides.It is involved in the occurrence and development of tumors and plays an important role by regulating the expression and function of DNA,RNA and protein.In recent years,lncRNA has become a new research direction for early diagnosis and prognosis of malignant tumors.As a newly discovered lncRNA,linc-UBC1 is abnormally highly expressed in a variety of malignant tumors such as lung cancer,gastric cancer,colorectal cancer,cervical cancer,ovarian cancer,and esophageal squamous cell carcinoma.It can promote the proliferation,migration,invasion,cell cycle progression,cell apoptosis and EMT of tumor cells by acting as a competing endogenous RNA(ceRNA)and participating in signaling pathways.High expression of linc-UBC1 can increase the drug resistance of malignant tumors,and its expression level is positively correlated with tumor stage,lymph node metastasis and distant metastasis of primary tumors.linc-UBC1 is expected to become a new biomarker,prognostic predictor and therapeutic target for many malignant tumors,while its specific regulatory mechanism is still in the early stage of research and needs further in-depth study.This article reviews the current research progress of linc-UBC1 in the occurrence and development of malignant tumors.
综述
自发性脑出血(SICH)是脑卒中的一种常见形式,其预后通常较差,因此早期评估和调节患者出血后的免疫状态至关重要。免疫检查点是评估T淋巴细胞活跃性和增殖状态的关键指标,监测这些检查点有助于预测脑出血患者的预后。程序性死亡蛋白1(PD-1)和细胞分化抗原28(CD28)作为两个典型的免疫检查点,它们在脑出血预后评估中的应用正逐渐成为研究的热点。该文综述了脑出血后机体免疫状态的变化,以及PD-1和CD28在脑出血后评估和治疗中的研究进展。
Spontaneous intracerebral hemorrhage(SICH)is a common cause of stroke,with specific outcomes often being poor.Therefore,early assessment and modulation of the immune status after hemorrhage are of critical importance.Immune checkpoints serve as key indicators for assessing the activation and proliferation of T cells,and monitoring these checkpoints can help to predict the outcomes of patients with intracerebral hemorrhage.PD-1(programmed death 1)and CD28(Cluster of Differentiation 28)are two representative immune checkpoints,and their use in prognostic assessment after intracerebral hemorrhage is becoming a focus of research.This article reviews the changes in the immune state of the body after intracerebral hemorrhage,as well as the research progress on the use of PD-1 and CD28 in the evaluation and treatment following intracerebral hemorrhage.
综述
腹腔镜手术后除躯体创伤疼痛,部分患者还可能经历痛苦的术后内脏痛,不仅使患者术后体验不佳,疼痛应激甚至可能加重机体的内环境紊乱,不利于患者的术后康复。内脏痛是来源于内脏器官和组织的疼痛,其产生与脏器的平滑肌痉挛、扩张、缺血、化学炎症刺激等密切相关。在这个过程中,许多离子通道和受体在调节内脏伤害性刺激信号的传导上发挥作用。目前,临床上术后镇痛治疗方案多样,但如何针对性地控制术后内脏痛是临床医生需要面对和解决的问题。为此,该文对腹腔镜术后内脏痛发生的相关机制、内脏感觉的神经传导及临床特征、治疗进展进行综述。
In addition to physical trauma,patients undergoing laparoscopic surgery may also experience postoperative visceral pain.This pain not only impacts the patient's postoperative experience,but can also worsen the body's internal environment and hinder recovery.Visceral pain originates from internal organs and tissues.It is closely related to smooth muscle spasms,dilations,ischemia,and chemical inflammatory stimulation of organs.In this process,numerous ion channels and receptors regulate the transmission of visceral nociceptive stimulus signals.At present,there are multiple clinical treatment options available for postoperative pain management.However,clinicians must overcome the challenge of controlling postoperative visceral pain.This article provides a review of the relevant mechanisms of visceral pain following laparoscopic surgery,the neural conduction of visceral sensation,clinical characteristics and treatment advancements.
综述
Wnt/β-catenin信号通路是一种在胚胎发育,细胞增殖分化、迁移,干细胞更新等中起关键作用的蛋白质家族。Wnt/β-catenin信号通路的失调常常会导致各种严重的疾病,例如肿瘤、心脏疾病、肺部疾病、肝脏疾病、骨骼疾病、神经疾病等。大量研究表明,Wnt/β-catenin信号通路在心肌纤维化发病机制中起重要作用,本文结合最新研究成果,从心肌纤维化相关疾病的角度对Wnt/β-catenin通路进行综述,为预防心肌纤维化提供新的思路,进一步达到防治心血管疾病的目的。
The Wnt/β-catenin signaling pathway is a family of proteins that play a key role in embryonic development,cell proliferation and differentiation,migration,stem cell renewal,etc.Dysfunctions of Wnt/β-catenin signaling pathway often lead to various serious diseases,such as tumor,heart,lung,liver,bone and neurological diseases,etc.Numerous studies have shown that the Wnt/β-catenin signaling pathway plays an important role in the pathogenesis of cardiac fibrosis.This article,in combination with the latest research findings,presents a review of the Wnt/β-catenin pathway from the perspective of myocardial fibrosis-related diseases,in order to provide new ideas for preventing myocardial fibrosis and achieving the goal of combating cardiovascular disease.
综述
心血管疾病是导致我国居民死亡的首要原因。在2006—2019年间,我国每年因心血管疾病死亡的人数从215万人增加到328万人。斑马鱼因个体小、成本低廉、体外发育、身体透明、基因组与人类高度同源等特点,近年来被广泛应用于医学研究。斑马鱼模型有利于推动心血管疾病领域的基础性研究。该文通过对前期研究进行综述,重点介绍了斑马鱼模型在心血管疾病中基因筛选、心脏再生、药物筛选、毒性评估等方面的研究进展。
Cardiovascular disease is the leading cause of death in China.Between 2006 and 2019,the annual number of deaths due to cardiovascular diseases increased from 2.15 million to 3.28 million.Zebrafish has been widely used in medical research in recent years because of its small individual size,low cost,in vitro development,transparent body and high homology of genome with human.The zebrafish model is conducive to promoting basic research in the field of cardiovascular disease.Based on the review of previous studies,this paper focuses on the research progress of zebrafish model in gene screening,cardiac regeneration,drug screening,toxicity assessment and other aspects of cardiovascular diseases.
专家述评
脊髓损伤是一种高致残性中枢神经系统疾病,目前缺乏有效的治疗措施。干细胞组织工程兴起和神经调控技术的发展,给脊髓损伤的治疗带来新的希望。目前,多项针对脊髓损伤的干细胞相关治疗项目的临床研究已在全球注册,干细胞疗法是脊髓损伤领域的研究热点,具有良好的应用前景。而神经调控技术一直在临床上脊髓损伤后的康复治疗中发挥着重要作用,特别是靶向神经调控技术近年在脊髓损伤治疗方面取得突破性进展。有研究尝试联合干细胞疗法和神经调控技术应用治疗脊髓损伤,试图取得更好的效果。本文综述了干细胞疗法和神经调控技术在脊髓损伤治疗中的研究进展,旨在探讨其作用效果、修复机制、应用前景以及面临的问题,进一步为脊髓损伤的基础研究和临床转化提供参考。
Spinal cord injury is a highly disabling disease of the central nervous system without effective treatment to date.With the rise of stem cell and tissue engineering,and the breakthrough of neuromodulation technology,it brings new hope to the treatment of spinal cord injury.At present,a number of clinical studies on stem cell-related treatment projects for spinal cord injury have been registered worldwide,which has become a research hotspot.Neuromodulation technology has been playing an important role in the clinical rehabilitation of spinal cord injury.Especially,breakthroughs have been made in the treatment of spinal cord injury by targeted neuromodulation technology in recent years,which is encouraging.Some studies have attempted to combine stem cell therapy and neuromodulation technology to treat spinal cord injuries in an attempt to achieve better effect.This review summarizes the research progress of stem cell therapy and neuromodulation technology in the treatment of spinal cord injury,with the aim of discussing their effect,repair mechanisms,application prospect and various problems to face,and providing further reference for the basic research and clinical transformation of spinal cord injury.