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Motor tract reorganization after acute central nervous system injury: a translational perspective

Neural Regeneration Research 2021年第6期16卷 1144-1149页

作者： Hajime Takase robert w.regenhardt Department of Neurosurgery Yokohama City University Graduate School of MedicineYokohamaJapan Departments of Radiology and Neurology Massachusetts General Hospital and Harvard Medical SchoolCharlestownMAUSA Department of Neurology Massachusetts General Hospital and Harvard Medical SchoolBostonMAUSA

Acute central nervous system injuries are among the most common causes of disability worldwide,with widespread social and economic *** tract injury accounts for the majority of this disability;therefore,there is impetus to understand mechanisms underlying the pathophysiology of injury and subsequent reorganization of the motor tract that may lead to *** acute central nervous system injury,there are changes in the microenvironment and structure of the motor *** example,ischemic stroke involves decreased local blood flow and tissue death from lack of oxygen and *** injury,in contrast,causes stretching and shearing injury to microstructures,including myelinated axons and their surrounding *** involve blood-brain barrier dysfunction,which is an important initial *** acute central nervous system injury,motor tract reorganization occurs in the form of cortical remapping in the gray matter and axonal regeneration and rewiring in the white *** remapping involves one cortical region taking on the role of ***-response-element binding protein is a key transcription factor that can enhance plasticity in the peri-infarct *** regeneration and rewiring depend on complex cell-cell interactions between axons,oligodendrocytes,and other *** RhoA/Rho-associated coiled-coil containing kinase signaling pathway plays a central role in axon growth/regeneration through interactions with myelin-derived axonal growth inhibitors and regulation of actin cytoskeletal *** and their precursors play a role in myelination,and neurons are involved through their voltage-gated calcium *** the pathophysiology of injury and the biology of motor tract reorganization may allow the development of therapies to enhance recovery after acute central nervous system *** include targeted rehabilitation,novel pharmacotherapies,such as growth factors and axonal growt

关键词： corticospinal tract myelin-axon interaction recovery remapping reorganization RhoA/ROCK translation

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Improving detection of cerebral small vessel disease aetiology in patients with isolated lobar intracerebral haemorrhage

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Stroke & Vascular Neurology 2023年第1期8卷 26-33页

作者： Alvin S Das Elif Gokcal robert w regenhardt Mitchell J Horn Kristin Schwab Nader Daoud Anand Viswanathan w Taylor Kimberly Joshua N Goldstein Alessandro Biffi Natalia Rost Jonathan Rosand Lee H Schwamm Steven M Greenberg M Edip Gurol Department of Neurology Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMassachusettsUSA Department of Neurology Massachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA Department of Neurosurgery Massachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA Department of Emergency Medicine Massachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA

Background and purpose we evaluate whether non-haemorrhagic imaging markers(NHIM)(white matter hyperintensity patterns,lacunes and enlarged perivascular spaces(EPVS))can discriminate cerebral amyloid angiopathy(CAA)from hypertensive cerebral small vessel disease(HTN-cSVD)among patients with isolated lobar intracerebral haemorrhage(isolated-LICH).Methods In patients with isolated-LICH,four cSVD aetiologic groups were created by incorporating the presence/distribution of NHIM:HTN-cSVD pattern,CAA pattern,mixed NHIM and no *** pattern consisted of patients with any combination of severe centrum semiovale EPVS,lobar lacunes or multiple subcortical spots ***-cSVD pattern consisted of any HTN-cSVD markers:severe basal ganglia PVS,deep lacunes or peribasal ganglia white matter hyperintensity *** NHIM consisted of at least one imaging marker from either *** hypothesis was that patients with HTN-cSVD pattern/mixed NHIM would have a higher frequency of left ventricular hypertrophy(LVH),which is associated with *** In 261 patients with isolated-LICH,CAA pattern was diagnosed in 93 patients,HTN-cSVD pattern in 53 patients,mixed NHIM in 19 patients and no NHIM in 96 *** frequency of LVH was similar among those with HTN-cSVD pattern and mixed NHIM(50%vs 39%,p=0.418)but was more frequent in HTN-cSVD pattern compared with CAA pattern(50%vs 20%,pwere found to be independently associated with *** Among patients with isolated-LICH,NHIM may help differentiate HTN-cSVD from CAA,using LVH as a marker for HTN-cSVD.

关键词： patients cerebral hypertensive

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