Abstract:
OBJECTIVE:To explore the primary regularity of cerebral electrical impedance (CEI) change in healthy people, patients with intracerebral hemorrhage (ICH) and patients with cerebral infarction (CI). METHODS:CEI of 200 healthy volunteers, 78 patients with ICH and 51 patients with CI were measured by noninvasive brain-edema monitor. The results of perturbative index (PI) converted from CEI were compared with the volumes of infarction, hematoma and surrounding edema, which were calculated by image analysing system according to MRI or CT scan. RESULTS:(1) In the normal groups, PI in the left and right sides of cerebral hemispheres was respectively 7.98 +/- 0.95 and 8.02 +/- 0.71, and there was no significant difference between the two sides (p>0.05). (2) In the patients with ICH, PI of the hematoma side initially was lower than the other side, but then increased and finally exceeded that of the other side. The average transitional time was 19.67 +/- 11.52 hours. Perturbative index of the hematoma side after the transitional time was much higher than before the transitional time in the same patients (7.79 +/- 0.75 versus 7.09 +/- 0.72) (p<0.001). The volumes of peri-hematoma edema were also significantly larger after the transitional time than before (24.32 +/- 12.86 versus 13.33 +/- 6.12) (p<0.05). There was a positive correlation between the PI of hematoma side and the volumes of peri-hematoma edema (p<0.01). (3) In the patients with arterothrombotic cerebral infarction, PI in the infarct side was higher than that in the opposite side 3-5 days after onset (8.93 +/- 1.89 versus 8.58 +/- 1.61) (p<0.001), and PI of the infarct side had a positive correlation with the volume of infarction (p<0.001). (4) The sensitivity of PI was high when the volumes of lesions were >20 ml or the position of them were located in the basal ganglia, but was low when the volumes were <20 ml or the position near the midline. CONCLUSION:CEI may be a useful parameter for noninvasively monitoring the change of brain edema and hematoma in stroke at bedside. It could be a good complement to CT and MRI.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Liu L,Dong W,Ji X,Chen L,Chen L,He W,Jia Jdoi
10.1179/016164106X91843subject
Has Abstractpub_date
2006-01-01 00:00:00pages
31-7issue
1eissn
0161-6412issn
1743-1328journal_volume
28pub_type
杂志文章abstract::The potential role of magnetic resonance angiography (MRA) in clinical neurosurgical practice was evaluated in 150 consecutive patients in an attempt to define clinical situations in which it aided in diagnosis, helped guide treatment options, and/or possibly eliminated the need for conventional catheter angiography. ...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1080/01616412.1992.11740086
更新日期:1992-12-01 00:00:00
abstract::The abnormal muscle response, elicited by electrical stimulation of one branch of the facial nerve and recorded from muscles innervated by another branch, has been used previously as an objective sign of hemifacial spasm in the development of animal models of this disorder. In the present study we recorded spontaneous...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1994.11740241
更新日期:1994-08-01 00:00:00
abstract:OBJECTIVE:A reproducible brain tumor model using experimental animals is required to study biological behavior and develop more potent antineoplastic drugs and effective therapeutic modalities. In this work, we attempted to establish diffuse leptomeningeal gliomatosis in the rat by intracarotid injection of C6 glioma c...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X403904
更新日期:2009-06-01 00:00:00
abstract::Objective: To determine the time of dementia diagnosis, symptom intensity and to assess the comorbidities.Methods: 110 patients with dementia or mild cognitive impairment were enrolled in this retrospective study. The study group was divided into subgroups: patients with a maximum of three (S ≤ 3 n = 62) and four or m...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1738648
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:Vascular endothelial growth factor is a potent stimulator of angiogenesis; activation of hypoxia inducible factor-1alpha and p44/42 mitogen-activated protein kinase pathways has been associated with vascular endothelial growth factor production. The present study examined if thrombin modulates vascular endoth...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X385699
更新日期:2009-09-01 00:00:00
abstract:OBJECTIVE:The aim of the present study was to analyse inflammatory cells in lumbar disc tissue under cyclooxygenase-2 (COX-2) inhibitor therapy, to detect their prevalence in different subtypes of lumbar disc herniations and to assess the influence of inflammatory reactions in herniated disc tissue on postoperative out...
journal_title:Neurological research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1179/016164105X49210
更新日期:2005-09-01 00:00:00
abstract::Cyclic GMP (cGMP) mediates smooth muscle relaxation in the central nervous system. In subarachnoid hemorrhage (SAH), decreases in intrinsic nitric oxide (NO) cause cerebral vasospasms due to the regulation of cGMP formation by NO-mediated pathways. As phosphodiesterase type V (PDE V) selectively hydrolyzes cGMP, we hy...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164102101200447
更新日期:2002-09-01 00:00:00
abstract:OBJECTIVE:This study investigated the relationship between traumatic coagulopathy and severe brain swelling (SBS) during decompressive surgery to evacuate a supratentorial intradural mass lesion in patients with traumatic brain injury (TBI). METHODS:A retrospective study was conducted in 96 patients who consecutively ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000187
更新日期:2013-07-01 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::We have reliable data on the degree of stenosis above which endarterectomy for symptomatic carotid stenosis is beneficial, but benefit is also influenced by other factors, particularly age, sex, the timing of surgery, plaque surface morphology and the nature of the presenting symptomatic event(s). This review will con...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164105X25298
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Diffusion tensor tractography (DTT) has recently been shown to accurately detect nerve injury and regeneration. This study assesses whether 7-tesla (7T) DTT imaging is a viable modality to observe axonal outgrowth in a 4 cm rabbit sciatic nerve injury model fixed by a reverse autograft (RA) surgical techniqu...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2018.1554284
更新日期:2019-03-01 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:OBJECTIVES:In multiple sclerosis (MS) demyelination occurs in both white and gray matter. Here we introduce an electrophysiological approach for studying functional demyelination and myelin repair in rat hippocampus, a gray matter structure, which is frequently affected in patients suffering from MS. METHODS:Using a s...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000221
更新日期:2013-10-01 00:00:00
abstract::L-644,711 is a novel anion channel inhibitor which has previously been shown to decrease brain injury in two related rabbit models of cerebral ischaemia. We hypothesize two mechanisms of action of L-644,711 for its salutary effects on cerebral ischaemia: inhibition of neutrophil function and prevention of excitotoxin ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1992.11740011
更新日期:1992-03-01 00:00:00
abstract::Monitoring of regional cerebral oxygen saturation (r. cereb. O2 satn.) was carried out continuously in 12 healthy subjects (mean age 35.2 +/- 4.4 years; range 26-41 years; 4 women, 8 men), prior to, during and following acupuncture. Measurements were obtained with the INVOS 3100 cerebral oximeter (Somanetics Corp., Tr...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1998.11740605
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:Intravenous administration of recombinant tissue plasminogen activator (rtPA) is known as the only approved treatment for acute ischemic stroke. However, it is still controversial whether acute ischemic stroke patients with atrial fibrillation should receive rtPA therapy. METHODS:We studied 99 patients altog...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12656393665206
更新日期:2010-05-01 00:00:00
abstract::We examined regional cerebral blood flow (rCBF) and oxygen metabolism (rCMRO2) in 10 patients with progressive dementia and amyotrophic lateral sclerosis (DALS), in 21 patients with classical amyotrophic lateral sclerosis without dementia (ALS), and in 17 controls. The mean rCBF and rCMRO2, especially in the anterior ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164103101201670
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVE:We sought to assess the current status of blood pressure control and the use of antihypertensive drugs in patients with ischemic stroke (IS) or transient ischemic attack (TIA) in China. SUBJECTS AND METHODS:A cross-sectional study (across 19 urban outpatient clinics) on secondary stroke prevention measures w...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313208X300323
更新日期:2008-05-01 00:00:00
abstract:OBJECTIVES:Membrane disruption is one of the main factors that cause axonal damage and functional deficits manifested in spinal cord injury (SCI). In this study, we used polyethylene glycol (PEG) to induce immediate membrane sealing and to promote functional recovery after SCI. METHODS:The effects of PEG (200-2000 Da)...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000133
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:Tissue plasminogen activator (tPA) may aggravate ischemic neuronal damage after focal cerebral ischemia and increase blood-brain barrier permeability. Human serum albumin has neuroprotective effects on ischemic stroke. However, whether albumin can attenuate the deleterious effects of tPA is yet unknown. METH...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X393898
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVES:In conditions with reduced glucose levels/inability of glucose utilization, ketone bodies, especially beta-hydroxybutyrate (BHB), become a major energy source in the brain. In animal models, BHB infusion shows acute beneficial effects on the hypoxic brain. The present prospective observational study is the f...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000239
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVES:Susceptibility-weighted (SW) magnetic resonance (MR) imaging is a sensitive test to detect intravenous deoxygenated blood. On SW images, dilated appearing draining veins in tissue with perfusion impairment occur due to an increase in intravenous deoxyhemoglobin levels, and could indicate poor perfusion areas...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12644252260510
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVE:Glutamate antagonists are very attractive drugs in laboratory works to protect neural tissue against ischemia. In this work, the effects of magnesium, MK-801 and combination of magnesium and MK-801 on blood-brain barrier (BBB) and brain edema after experimentally induced traumatic brain injury are evaluated. ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X385617
更新日期:2009-11-01 00:00:00
abstract::In patients with head trauma and consecutive acute diffuse cerebral swelling the sudden initial rise in intracranial pressure with subsequent impairment of cerebral blood flow is explained by engorgement due to vasoparalysis. How quickly hyperaemic brain swelling can occur is shown by a case report. The review of clin...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1994.11740190
更新日期:1994-02-01 00:00:00
abstract::One case of dural arteriovenous malformation in the base of the anterior cranial fossa is reported. It was discovered by means of a PW-Doppler examination of angular branch of the ophthalmic artery in a patient under observation for hypertrophy of a superficial temporal artery. The nidus was located in the region of t...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1995.11740317
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVES:Ischemia/hypoxia (I/H) causes severe neonatal brain injury, such as periventricular leukomaracia and hypoxic/ischemic encephalopathy. Neural stem cell research could lead to a treatment for such disorders. In order to elucidate the dynamic changes in neural stem cells in the neonatal brain after I/H, we inve...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164105X49283
更新日期:2006-06-01 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:OBJECTIVE:Chronic subdural hematoma (cSDH) has an increasing incidence and results in high morbidity and mortality. We review here the 10-year experience of a single institution and the literature regarding the treatment and major associations of cSDH. METHODS:We retrospectively reviewed all cSDHs surgically treated f...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/1743132813Y.0000000166
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVE:Rats treated with progesterone (P4) after ischemia show an adequate functional performance despite a significant loss of hippocampal pyramidal neurons, suggesting that P4 could favour a permissive microenvironment for cerebral plasticity mechanisms. The possibility of P4 treatment promoting the survival of ne...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2019.1576356
更新日期:2019-05-01 00:00:00
abstract::Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by the degeneration of the dopamine producing neurons projecting from the substantia nigra into the corpus striatum. Current medical therapy is limited and cannot stop or reverse the degeneration. Over the past 30 years, attempts were m...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164104225017604
更新日期:2004-06-01 00:00:00