Abstract:
OBJECTIVES:Recent studies have suggested that rehabilitation therapy can accelerate functional recovery after a stroke. Although often overlooked, the cortical hemisphere contralateral to an infarction plays an important role. This study investigates alterations in metabolism of both the damaged ('ipsilateral') as well as the undamaged ('contralateral') hemisphere using (18)F-fluorodeoxyglucose (FDG)-micro-positron emission tomography (PET) in a rat permanent stroke model (with or without post-injury exercise) in order to elucidate the relative importance of either hemisphere to the recovery process following stroke. METHODS:Thirty-six adult, male Sprague-Dawley rats were divided into four groups before subsequent surgery: sham controls with or without exercise, and ischemic ('stroke') groups with or without exercise. Fluorodeoxyglucose micro-PET imaging was performed at 7, 14, and 21 days after the designated procedure according to group assignment. The imaging data was analyzed by ANOVA using SPMratIHEP software. RESULTS:Both exercise and ischemia have measurable effects on the motor cortex as well as on the striatum, the effects of which notably include the contralateral hemisphere. To that end, regions of the contralateral motor cortex and striatum have been found to be in a hypermetabolic state following exercise. We further observed that exercise reversed the hypometabolism caused by ischemia back to control levels from day 7 through day 21 on the ipsilateral side. Its effect on the contralateral hemisphere, notably, bolsters an already vigorous response observed after ischemic insult. Thus, the beneficial effect of exercise, as inferred by an increase in metabolic activity, is evident in both hemispheres. DISCUSSION:These findings suggest that the contralateral hemisphere can compensate for the damaged cortex by remodeling neuronal activity. Thus, clinical treatments specifically targeted to the 'intact' hemisphere following stroke may provide a complimentary strategy for promoting recovery of functional deficits and for improving quality of life in stroke patients.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Jiang XF,Zhang T,Sy C,Nie BB,Hu XY,Ding Ydoi
10.1179/1743132814Y.0000000350subject
Has Abstractpub_date
2014-05-01 00:00:00pages
475-82issue
5eissn
0161-6412issn
1743-1328journal_volume
36pub_type
杂志文章abstract:BACKGROUND/AIMS:Both of neuromyelitis optica spectrum disease (NMOSDs) and idiopathic transverse myelitis (ITM) could present as acute transverse myelitis. However, long-term immunological treatment and prognosis are different for high recurrence of NMOSDs. In this study, we summarized clinical differences between acut...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1773628
更新日期:2020-07-01 00:00:00
abstract:OBJECTIVES:Progesterone modulates dopamine (DA) release in corpus striatum. Our objective was to evaluate the effect of the i.c.v injection of the neurosteroid allopregnanolone (ALL), a progesterone metabolite on dopaminergic activity in the corpus striatum of rats under different gonadal hormonal conditions. METHODS:...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X166281
更新日期:2007-09-01 00:00:00
abstract::Advances in neuromodulation techniques offer the promise of new therapeutic interventions for patients with neuropsychiatric maladies. Several complex social, ethical and policy issues will attend developments in this area. In this paper an ethical framework for clinical research in interventional cognitive neuroscien...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1080/01616412.2000.11740670
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Multiple sclerosis (MS) is a common inflammatory disease of the central nervous system. A contribution from complement has long been suspected. We investigated the association of complement factor H (CFH) Tyr402 His gene polymorphism and serum level in Egyptian patients with MS to examine whet...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132815Y.0000000075
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Intracranial artery stenosis may be the most frequent cause of ischemic stroke in the world. Early detection of asymptomatic intracranial artery stenosis may allow for therapeutic intervention. Most elements of the Framingham stroke risk profile (FSRP) are also risk factors for intracranial artery stenosis....
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000024
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:Mapping of brain perfusion using bolus tracking methods is increasingly used to assess the amount and severity of cerebral ischemia in acute stroke. Using relative perfusion maps, however, it is difficult to identify the tissue at risk-maximum (TARM) of infarction with sufficient reliability and reproducibil...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X158956
更新日期:2007-04-01 00:00:00
abstract::Intraoperative use of somatosensory evoked potentials (SEP's) to monitor intracranial aneurysm surgery and flash visual evoked potentials (F-VEP's) for parasellar surgery have been routinely employed in our clinic. We found that both EP modalities are sensitive to the changing concentration of our standard hypotensive...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1985.11739701
更新日期:1985-06-01 00:00:00
abstract:OBJECTIVE:This review article summarizes in vitro, in vivo, and clinical evidence pertaining to temozolomide (TMZ) and bevacizumab (BEV) efficacy and mechanism of action in gliomas. METHODS:Relevant publications published before June 2013 in PubMed database were reviewed. RESULTS:Temozolomide and BEV are current chem...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/1743132814Y.0000000423
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVE:To explore the risk factors for stroke-associated pneumonia (SAP). METHODS:A retrospective research study was carried out to investigate the clinical data of 1435 patients admitted to the neurological intensive care unit at our university hospital between 1 January 2000 and 31 December 2009. RESULTS:A multi...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164111X13007856084205
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVE:As a standard method, periodic limb movements in sleep (PLMS) are detected by means of polysomnography (PSG). Actigraphic detection of PLMS is a recently developed method for performing of multiple-night recordings in an outpatient setting. The aim of our study was to assess sensitivity-related parameters of ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X229911
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVES:In the present study, we investigated the effects of treadmill exercise on microglial activation and the subsequent release of tumour necrosis factor-alpha (TNF-alpha), interleukin (IL)-6 and IL-1-beta in the hippocampus in a rat model of type 2 diabetes. METHODS:At 30 weeks of age, diabetic (Zucker diabeti...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132815Y.0000000015
更新日期:2015-08-01 00:00:00
abstract::As early as 1 to 3 hr after cord transection, proliferation of many reactive oligodendrocytes was observed. Bundles of microfilaments and microtubules were observed in those cells that sent out long, complex pseudopodlike processes near the area of injury. These reactive oligodendrocytes may be comparable to Vaughn's ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1980.11739566
更新日期:1980-01-01 00:00:00
abstract::Intracerebral hemorrhage (ICH) remains a major medical problem, for which there is no effective treatment. However, extensive experimental and clinical research carried out in recent years has brought to light new exciting ideas for novel potential treatments. First, it was well documented that the management of hyper...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164105X25225
更新日期:2005-04-01 00:00:00
abstract::Using the previously reported method of experimental localized brainstem infarct in dogs, we designed this study to elucidate sequential changes of regional cerebral blood flow (rCBF) in three separate regions of the central nervous system: the cerebral cortex, thalamus, and midbrain. The data obtained were referred t...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2000.11741061
更新日期:2000-03-01 00:00:00
abstract::In this study, we examined the degree of disruption of blood-brain barrier (BBB) in irradiated rat brains using P-glycoprotein, one of the functional molecules of BBB, as a marker. In the animal experiments, disruption of BBB has been mainly studied at the acute stage of brain edema caused by a lethal dose of irradiat...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1999.11740920
更新日期:1999-03-01 00:00:00
abstract::Recent studies suggest that high plasma levels of tissue-type plasminogen activator (tPA) and its inhibitor (plasminogen activator inhibitor-1, PAI-1) are markers of an increased risk of atherothrombotic ischemic events such as stroke and myocardial infarction. In this prospective study, we measured tPA antigen, PAI-1...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1999.11741005
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVES:To assess the prevalence of calcification surrounding the odontoid process (odontoid calcification) with crowned dens syndrome (CDS) and without CDS (non-CDS) and investigate factors that may related to the onset of CDS. METHODS:Retrospective review of consecutive patients visited Sir Run Run Shaw Hospital ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1792700
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES:Surgical management of tumors in the sacropelvic region is a challenging field of spine surgery because of the region's complex local anatomy and biomechanics. Recent developments in anesthesia and intensive care have allowed us to perform extended surgeries focused on the en bloc resection of sacropelvic tu...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/1743132814Y.0000000370
更新日期:2014-06-01 00:00:00
abstract::The purpose of the present study was to examine the effect of nilvadipine (a dihydropyridine-type calcium entry blocker) on the cerebral circulation, experimental models of cerebral ischemia were used to measure abrupt changes in the cortical cerebral blood flow (CBF) at the 'penumbra' (the boundary region between the...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1996.11740430
更新日期:1996-08-01 00:00:00
abstract:OBJECTIVES:In this study, we aimed to investigate the effect of bone mesenchymal stem cells (BMSCs) conditioned medium on BMP4-induced activation of the Smad signaling pathway during the process of neural stem cells differentiation. METHODS:We designed four experimental groups: (A) control group, (B) BMP-4 treatment g...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2016.1232549
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:To investigate risk factors for neurological complications after off-pump coronary artery bypass grafting (OPCABG). METHODS:We reviewed the cases of 813 patients who underwent OPCABG between August 2010 and September 2013.Data from preoperative 320 dynamic volume computed tomography (CT), CT angiography (CTA...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132815Y.0000000030
更新日期:2015-05-01 00:00:00
abstract::We examined antioxidant activity of cabergoline, a dopamine agonist, during the aerobic oxidation of phosphatidylcholine liposomes at 37 degrees C. Cabergoline retarded the oxidation initiated with a lipid-soluble initiator significantly better than that with a water-soluble initiator, suggesting that cabergoline loca...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164104225016029
更新日期:2004-06-01 00:00:00
abstract:OBJECTIVE:We sought to determine whether cerebral inflammation in ischemic rats was reduced by a neuroprotective action of pre-ischemic tumor necrosis factor-alpha up-regulation, which down-regulated matrix metalloproteinase-9 activity via extracellular signal-regulated kinase 1/2 phosphorylation. MATERIAL AND METHODS...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X459101
更新日期:2010-09-01 00:00:00
abstract::The goal of this paper is to provide scientists with a comprehensive review of the state-of-the-art influence the ischemic blood-brain barrier (BBB) has on the final development of Alzheimer's disease and to provide detailed food-for-thought which will hopefully stimulate more researchers in this area of neuroscience....
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164106X130399
更新日期:2006-09-01 00:00:00
abstract::At present, no practical method exists for monitoring the progression and severity of cerebral oedema in a clinical setting on a continuous basis. In search for such a method, we investigated the electrical characteristics of cerebral tissue at microwave frequencies to quantify cerebral oedema. The dielectric constant...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1992.11740065
更新日期:1992-06-01 00:00:00
abstract::Tissue PCO2 (carbon dioxide tension) (PtCO2), interstitial H+ (H+e) and potassium activities (K+e) were monitored in the cerebral cortex of rats during and after 2-3 min of anoxia. Anoxia was associated with systemic hypotension and caused H+e (extracellular hydrogen ion activity) to increase from pH approximately equ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1989.11739882
更新日期:1989-09-01 00:00:00
abstract::The present study used immunohistochemistry to investigate p53 expression in rat brain following transient occlusion of the middle cerebral artery. In the control group, no p53-immunoreactive cells were found in any region of the central nervous system. P53 expression in reactive astrocytes was not obvious in the fore...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164102101199828
更新日期:2002-04-01 00:00:00
abstract::In models of middle cerebral artery occlusion using intraluminal suture, the size and the distribution of ischemic injury vary considerably among laboratories. In transcranial models of cerebral ischemia, a more consistent cerebral ischemic lesion is seen in Spontaneously Hypertensive rats (SHR). In the present study,...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1998.11740517
更新日期:1998-04-01 00:00:00
abstract::A simple and reproducible method of polymerase chain reaction (PCR) assay was established to detect trinucleotide repeat expansion for Huntington's disease (HD) using a new DNA polymerase and buffer system. The system consists of an extremely heat stable DNA polymerase (Pfu), and a buffer supplemented with ammonium su...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1996.11740370
更新日期:1996-02-01 00:00:00
abstract::The intracranial aneurysm, with an estimated occurrence of up to 4% in the general population, belongs among the most dangerous of cerebrovascular diseases. Although less than one-fifth of these cases results in a subarachnoid haemorrhage, the resulting disability and mortality rate is too high. More understanding is ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1991.11739995
更新日期:1991-12-01 00:00:00