Ischemic stroke is a secondary cause of mortality worldwide,imposing considerable medical and economic burdens on society.Extracellular vesicles,serving as natural nanocarriers for drug delivery,exhibit excellent bioc...Ischemic stroke is a secondary cause of mortality worldwide,imposing considerable medical and economic burdens on society.Extracellular vesicles,serving as natural nanocarriers for drug delivery,exhibit excellent biocompatibility in vivo and have significant advantages in the management of ischemic stroke.However,the uncertain distribution and rapid clearance of extracellular vesicles impede their delivery efficiency.By utilizing membrane decoration or by encapsulating therapeutic cargo within extracellular vesicles,their delivery efficacy may be greatly improved.Furthermore,previous studies have indicated that microvesicles,a subset of large-sized extracellular vesicles,can transport mitochondria to neighboring cells,thereby aiding in the restoration of mitochondrial function post-ischemic stroke.Small extracellular vesicles have also demonstrated the capability to transfer mitochondrial components,such as proteins or deoxyribonucleic acid,or their sub-components,for extracellular vesicle-based ischemic stroke therapy.In this review,we undertake a comparative analysis of the isolation techniques employed for extracellular vesicles and present an overview of the current dominant extracellular vesicle modification methodologies.Given the complex facets of treating ischemic stroke,we also delineate various extracellular vesicle modification approaches which are suited to different facets of the treatment process.Moreover,given the burgeoning interest in mitochondrial delivery,we delved into the feasibility and existing research findings on the transportation of mitochondrial fractions or intact mitochondria through small extracellular vesicles and microvesicles to offer a fresh perspective on ischemic stroke therapy.展开更多
Cardioembolic stroke,referred to as cardiogenic stroke,is a clinical syndrome in which emboli from the heart pass through the circulatory system and cause cerebral artery embolism and corresponding brain dysfunction.C...Cardioembolic stroke,referred to as cardiogenic stroke,is a clinical syndrome in which emboli from the heart pass through the circulatory system and cause cerebral artery embolism and corresponding brain dysfunction.Compared to other subtypes of ischemic stroke,cardiogenic stroke presents with more etiologies,greater severity,worse prognosis,and a higher recurrence rate.In this minireview,we provide new insights into the etiological classification,diagnostic methods,and interventions of cardiogenic stroke.展开更多
Stroke remains the leading cause of long-term disability.Hemiparesis is one of the most common post-stroke motor deficits and is largely attributed to loss or disruption of the motor signals from the affected motor co...Stroke remains the leading cause of long-term disability.Hemiparesis is one of the most common post-stroke motor deficits and is largely attributed to loss or disruption of the motor signals from the affected motor cortex.As the only direct descending motor pathway,the corticospinal tract(CST)is the primary pathway to innervate spinal motor neurons,and thus,forms the neuroanatomical basis to control the peripheral muscles for voluntary movements.Here,we review evidence from both experimental animals and stroke patients,regarding CST axonal damage,functional contribution of CST axonal integrity and remodeling to neurological recovery,and therapeutic approaches aimed to enhance CST axonal remodeling after stroke.The new insights gleaned from preclinical and clinical studies may encourage the development of more rational therapeutics with a strategy targeted to promote axonal rewiring for corticospinal innervation,which will significantly impact the current clinical needs of subacute and chronic stroke treatment.展开更多
Abstract:Stroke is currently the second leading cause of mortality and adult disability in the world.It expects to increase dramatically over the coming years.Stroke and its related illnesses cost the healthcare syste...Abstract:Stroke is currently the second leading cause of mortality and adult disability in the world.It expects to increase dramatically over the coming years.Stroke and its related illnesses cost the healthcare system billions of dollars each year worldwide,thus causing significant financial burden and economic hardship in the world.The disabilities afflicted in stroke survivors have also created significant social and economic impacts on societies worldwide.It is thus imperative that medical researchers develop effective treatment strategies in order to meet this today's challenge.Presently,even the cellular and molecular mechanisms of stroke are better understood,the effective treatment for stroke is still very limited.This has led stroke researchers to pursue different neuroprotective strategies aiming non-glutamate mechanisms to prevent neuronal damage and to promote neuronal survival,regeneration and functional recovery in stroke,thus offering potentially long-term economic,social,and healthcare benefits worldwide.展开更多
<strong>Introduction:</strong><span style="font-family:;" "=""><span style="font-family:Verdana;font-size:12px;"> Human beings are confronted with several try...<strong>Introduction:</strong><span style="font-family:;" "=""><span style="font-family:Verdana;font-size:12px;"> Human beings are confronted with several trying situations </span><span style="font-family:Verdana;font-size:12px;">that generate</span><span style="font-family:Verdana;font-size:12px;"> stress. Psychopathological manifestations such as anxiety, anxiety, depression, appear as an imbalance in the personality of individuals. Stroke and its increasing frequency in terms of death but especially morbidity has become one of the leading sources of disability in the world. Its appearance is medically described as caused by vascular risk factors. Our goal was to study the impact of stress </span></span><span style="font-family:Verdana;font-size:12px;">on</span><span style="font-family:;" "=""><span style="font-family:Verdana;font-size:12px;"> the onset and worsening of a stroke. </span><b><span style="font-family:Verdana;font-size:12px;">Methodology:</span></b><span style="font-family:Verdana;font-size:12px;"> This was the clinical method, the aim of which was to identify any stressful event in the patient’s life and its psychological consequences in order to establish a link between the impact of stress and the stroke;of the semi-directive clinical interview in order to leave the subject a great possibility of expression on the themes associated with our objective then the inferential descriptive method for the evaluation of psychological factors using several scales including The CISS and the STAI. The inclusion criteria were the existence of a </span><span style="font-family:Verdana;font-size:12px;">stroke,</span><span style="font-family:Verdana;font-size:12px;"> and the existence of a good state of cognitive functions. </span><b><span style="font-family:Verdana;font-size:12px;">Results:</span></b><span style="font-family:Verdana;font-size:12px;"> In our summary analysis, it appears that the stroke would result from chronic stress objectively detected by coping from the CISS and the STAI. The most stressful events on the Holmes and Rahe Scale were;on the family level: the death of a loved one, the illness of a loved one, incessant arguments, family tensions, family violence. On a personal level: illness, sentimental disappointment, abandonment;alcohol, drugs;and finally on the professional level, dismissal and professional conflict. </span><b><span style="font-family:Verdana;font-size:12px;">Conclusion:</span></b><span style="font-family:Verdana;font-size:12px;"> Stress is a psychological factor that increases the occurrence of a stroke, but also constitutes a determining disturbing element in patients with one or more vascular risk factors.</span></span>展开更多
目的:研究镜像神经元康复策略(Mirror Neuron System,MNS)联合经颅磁刺激(Transcranial Magnetic Stimulation,TMS)对卒中后神经与功能康复的作用。方法:选取2019年1月至2023年6月某部队康复中心收治的198例卒中后遗留有运动功能障碍患...目的:研究镜像神经元康复策略(Mirror Neuron System,MNS)联合经颅磁刺激(Transcranial Magnetic Stimulation,TMS)对卒中后神经与功能康复的作用。方法:选取2019年1月至2023年6月某部队康复中心收治的198例卒中后遗留有运动功能障碍患者,采用随机数字表法分为三组,各66例。三组均给予常规康复指导,磁刺激组给予TMS治疗,镜像组给予MNS治疗,联合组给予TMS+MNS治疗。比较三组干预前、干预2周后、干预4周后神经功能(NIHSS)、上下肢运动功能(FMA)、日常生活能力(ADL)、平衡能力(BBS)、上肢与下肢肌张力(MAS)、健患侧步长差、患侧负重时间百分比及语言功能。结果:联合组干预2周、4周后NIHSS评分低于磁刺激组、镜像组,差异具有统计学意义(P<0.05),磁刺激组、镜像组组间比较,差异无统计学意义(P>0.05);联合组干预2周、4周后FMA-上肢、FMA-下肢评分高于磁刺激组、镜像组,且镜像组高于磁刺激组,差异具有统计学意义(P<0.05);联合组干预2周、4周后ADL评分、BBS评分高于磁刺激组、镜像组,且镜像组高于磁刺激组,差异具有统计学意义(P<0.05);联合组干预4周后上肢和下肢MAS分级0~1级患者占比高于磁刺激组、镜像组,且磁刺激组高于镜像组,差异具有统计学意义(P<0.05);联合组干预2周、4周后健患侧步长差低于磁刺激组、镜像组,患侧负重时间百分比高于磁刺激组、镜像组,且镜像组变化幅度大于磁刺激组,差异具有统计学意义(P<0.05);联合组干预2周、4周后语言功能中阅读理解、复述、流畅度、命名评分高于磁刺激组、镜像组,且磁刺激组高于镜像组,差异具有统计学意义(P<0.05)。结论:MNS联合TMS能促进卒中后神经与功能康复,有利于改善患者日常生活能力,且二者各有优势,互相补充,联合治疗效果显著,值得临床推广。展开更多
基金supported by the grants from University of Macao,China,Nos.MYRG2022-00221-ICMS(to YZ)and MYRG-CRG2022-00011-ICMS(to RW)the Natural Science Foundation of Guangdong Province,No.2023A1515010034(to YZ)。
文摘Ischemic stroke is a secondary cause of mortality worldwide,imposing considerable medical and economic burdens on society.Extracellular vesicles,serving as natural nanocarriers for drug delivery,exhibit excellent biocompatibility in vivo and have significant advantages in the management of ischemic stroke.However,the uncertain distribution and rapid clearance of extracellular vesicles impede their delivery efficiency.By utilizing membrane decoration or by encapsulating therapeutic cargo within extracellular vesicles,their delivery efficacy may be greatly improved.Furthermore,previous studies have indicated that microvesicles,a subset of large-sized extracellular vesicles,can transport mitochondria to neighboring cells,thereby aiding in the restoration of mitochondrial function post-ischemic stroke.Small extracellular vesicles have also demonstrated the capability to transfer mitochondrial components,such as proteins or deoxyribonucleic acid,or their sub-components,for extracellular vesicle-based ischemic stroke therapy.In this review,we undertake a comparative analysis of the isolation techniques employed for extracellular vesicles and present an overview of the current dominant extracellular vesicle modification methodologies.Given the complex facets of treating ischemic stroke,we also delineate various extracellular vesicle modification approaches which are suited to different facets of the treatment process.Moreover,given the burgeoning interest in mitochondrial delivery,we delved into the feasibility and existing research findings on the transportation of mitochondrial fractions or intact mitochondria through small extracellular vesicles and microvesicles to offer a fresh perspective on ischemic stroke therapy.
文摘Cardioembolic stroke,referred to as cardiogenic stroke,is a clinical syndrome in which emboli from the heart pass through the circulatory system and cause cerebral artery embolism and corresponding brain dysfunction.Compared to other subtypes of ischemic stroke,cardiogenic stroke presents with more etiologies,greater severity,worse prognosis,and a higher recurrence rate.In this minireview,we provide new insights into the etiological classification,diagnostic methods,and interventions of cardiogenic stroke.
文摘Stroke remains the leading cause of long-term disability.Hemiparesis is one of the most common post-stroke motor deficits and is largely attributed to loss or disruption of the motor signals from the affected motor cortex.As the only direct descending motor pathway,the corticospinal tract(CST)is the primary pathway to innervate spinal motor neurons,and thus,forms the neuroanatomical basis to control the peripheral muscles for voluntary movements.Here,we review evidence from both experimental animals and stroke patients,regarding CST axonal damage,functional contribution of CST axonal integrity and remodeling to neurological recovery,and therapeutic approaches aimed to enhance CST axonal remodeling after stroke.The new insights gleaned from preclinical and clinical studies may encourage the development of more rational therapeutics with a strategy targeted to promote axonal rewiring for corticospinal innervation,which will significantly impact the current clinical needs of subacute and chronic stroke treatment.
文摘Abstract:Stroke is currently the second leading cause of mortality and adult disability in the world.It expects to increase dramatically over the coming years.Stroke and its related illnesses cost the healthcare system billions of dollars each year worldwide,thus causing significant financial burden and economic hardship in the world.The disabilities afflicted in stroke survivors have also created significant social and economic impacts on societies worldwide.It is thus imperative that medical researchers develop effective treatment strategies in order to meet this today's challenge.Presently,even the cellular and molecular mechanisms of stroke are better understood,the effective treatment for stroke is still very limited.This has led stroke researchers to pursue different neuroprotective strategies aiming non-glutamate mechanisms to prevent neuronal damage and to promote neuronal survival,regeneration and functional recovery in stroke,thus offering potentially long-term economic,social,and healthcare benefits worldwide.
文摘<strong>Introduction:</strong><span style="font-family:;" "=""><span style="font-family:Verdana;font-size:12px;"> Human beings are confronted with several trying situations </span><span style="font-family:Verdana;font-size:12px;">that generate</span><span style="font-family:Verdana;font-size:12px;"> stress. Psychopathological manifestations such as anxiety, anxiety, depression, appear as an imbalance in the personality of individuals. Stroke and its increasing frequency in terms of death but especially morbidity has become one of the leading sources of disability in the world. Its appearance is medically described as caused by vascular risk factors. Our goal was to study the impact of stress </span></span><span style="font-family:Verdana;font-size:12px;">on</span><span style="font-family:;" "=""><span style="font-family:Verdana;font-size:12px;"> the onset and worsening of a stroke. </span><b><span style="font-family:Verdana;font-size:12px;">Methodology:</span></b><span style="font-family:Verdana;font-size:12px;"> This was the clinical method, the aim of which was to identify any stressful event in the patient’s life and its psychological consequences in order to establish a link between the impact of stress and the stroke;of the semi-directive clinical interview in order to leave the subject a great possibility of expression on the themes associated with our objective then the inferential descriptive method for the evaluation of psychological factors using several scales including The CISS and the STAI. The inclusion criteria were the existence of a </span><span style="font-family:Verdana;font-size:12px;">stroke,</span><span style="font-family:Verdana;font-size:12px;"> and the existence of a good state of cognitive functions. </span><b><span style="font-family:Verdana;font-size:12px;">Results:</span></b><span style="font-family:Verdana;font-size:12px;"> In our summary analysis, it appears that the stroke would result from chronic stress objectively detected by coping from the CISS and the STAI. The most stressful events on the Holmes and Rahe Scale were;on the family level: the death of a loved one, the illness of a loved one, incessant arguments, family tensions, family violence. On a personal level: illness, sentimental disappointment, abandonment;alcohol, drugs;and finally on the professional level, dismissal and professional conflict. </span><b><span style="font-family:Verdana;font-size:12px;">Conclusion:</span></b><span style="font-family:Verdana;font-size:12px;"> Stress is a psychological factor that increases the occurrence of a stroke, but also constitutes a determining disturbing element in patients with one or more vascular risk factors.</span></span>
文摘目的:研究镜像神经元康复策略(Mirror Neuron System,MNS)联合经颅磁刺激(Transcranial Magnetic Stimulation,TMS)对卒中后神经与功能康复的作用。方法:选取2019年1月至2023年6月某部队康复中心收治的198例卒中后遗留有运动功能障碍患者,采用随机数字表法分为三组,各66例。三组均给予常规康复指导,磁刺激组给予TMS治疗,镜像组给予MNS治疗,联合组给予TMS+MNS治疗。比较三组干预前、干预2周后、干预4周后神经功能(NIHSS)、上下肢运动功能(FMA)、日常生活能力(ADL)、平衡能力(BBS)、上肢与下肢肌张力(MAS)、健患侧步长差、患侧负重时间百分比及语言功能。结果:联合组干预2周、4周后NIHSS评分低于磁刺激组、镜像组,差异具有统计学意义(P<0.05),磁刺激组、镜像组组间比较,差异无统计学意义(P>0.05);联合组干预2周、4周后FMA-上肢、FMA-下肢评分高于磁刺激组、镜像组,且镜像组高于磁刺激组,差异具有统计学意义(P<0.05);联合组干预2周、4周后ADL评分、BBS评分高于磁刺激组、镜像组,且镜像组高于磁刺激组,差异具有统计学意义(P<0.05);联合组干预4周后上肢和下肢MAS分级0~1级患者占比高于磁刺激组、镜像组,且磁刺激组高于镜像组,差异具有统计学意义(P<0.05);联合组干预2周、4周后健患侧步长差低于磁刺激组、镜像组,患侧负重时间百分比高于磁刺激组、镜像组,且镜像组变化幅度大于磁刺激组,差异具有统计学意义(P<0.05);联合组干预2周、4周后语言功能中阅读理解、复述、流畅度、命名评分高于磁刺激组、镜像组,且磁刺激组高于镜像组,差异具有统计学意义(P<0.05)。结论:MNS联合TMS能促进卒中后神经与功能康复,有利于改善患者日常生活能力,且二者各有优势,互相补充,联合治疗效果显著,值得临床推广。