Abstract:
:In order to evaluate the relationship between brain oxygen supply and demand (O2 balance) in real time, it is necessary to use a multiparametric monitoring approach. Cerebral blood flow (CBF) is a representative parameter of O2 supply. The extracellular level of K+ is a reliable indicator of O2 demand since more than 60% of the energy consumed by the brain is utilized by active transport processes. Mitochondrial NADH redox state can represent the balance between O2 supply and demand. In order to monitor the brain of experimental animals or patients, we constructed the multiparametric assembly (MPA) and the following parameters were monitored simultaneously and in real time: CBF, CBV, NADH redox state, extracellular K+, DC potential, EEG, tissue temperature and ICP. Animals were exposed to hypoxia, ischemia, hypercapnia, hyperoxia and spreading depression (SD) and the relative changes in CBF and NADH were calculated and found to be significant indicators of brain energy state. Monitoring these two parameters increases the possibility of differentiating between various pathophysiological states. Each added parameter increases the power of diagnosis and determination of the functional state of the brain. Preliminary results obtained in patients monitored in the ICU or in the OR show that the responses to hypercapnia, spreading depression or ischemia are similar to those measured in experimental animals.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Mayevsky A,Meilin S,Manor T,Ornstein E,Zarchin N,Sonn Jdoi
10.1080/01616412.1998.11740615subject
Has Abstractpub_date
1998-01-01 00:00:00pages
S76-80eissn
0161-6412issn
1743-1328journal_volume
20 Suppl 1pub_type
杂志文章abstract::The mechanism of cerebral ischaemic injury is complex and likely involves more than a single pathophysiologic event. Drugs are available which interfere with numerous harmful biochemical and pharmacologic processes begun by ischaemia. Hence, combination chemotherapy might be useful in cerebral ischaemia. The purpose o...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1995.11740301
更新日期:1995-04-01 00:00:00
abstract::We elected to compare the clinical outcomes of carotid endarterectomy (CEA) patients who were thought to be at increased risk for peri-operative complications because of advanced age (> 79 years), medical comorbidities and contralateral internal carotid artery occlusion to patients without these risk factors. A prospe...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164102101199936
更新日期:2002-01-01 00:00:00
abstract::More reliable prediction of outcome would be helpful for clinicians who treat severely head-injured patients. To determine if neural network modeling would improve outcome prediction compared with standard logistic regression analysis and to determine if data available 24 h after severe head injury allows better predi...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1997.11740813
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVES:Although magnesium is a well-known treatment for vasospasm following subarachnoid hemorrhage, its mechanism of action for cerebral vascular relaxation is not clear. In addition, it is known that L-type calcium (Ca(2+)) channels play a pivotal role in smooth muscle contraction. To investigate the role of L-t...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000016
更新日期:2012-04-01 00:00:00
abstract:OBJECTIVE:To assess the effect of sensory nerve stimulation in older people with peripheral neuropathy associated with diabetes (DPN). MATERIALS AND METHODS:A randomized, placebo controlled, double blind trial was used to assess the effect of 12 weeks of low frequency sensory nerve stimulation (LF-SNS) in the lower li...
journal_title:Neurological research
pub_type: 杂志文章,随机对照试验
doi:10.1179/016164107X208095
更新日期:2007-10-01 00:00:00
abstract::Monitoring of brain tissue oxygenation (ptiO2) enables early diagnosis of secondary cerebral ischemia and may guide a cerebral perfusion pressure (CPP) orientated therapy. The purpose of our study was to explain the concept of ptiO2-autoregulation, defined as the ability of the brain to maintain ptiO2 despite changes ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164103101201580
更新日期:2003-06-01 00:00:00
abstract::We examined the effect of local anaesthesia of the skin on somatosensory evoked potentials (SEPs) and psychophysical magnitude estimates for a constant intensity air-puff stimulation (7 kg.cm-2) in 23 normal subjects. Before and after intradermal injection (0.1 ml of 1% xylocain) to the tip of the right index finger, ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1995.11740283
更新日期:1995-02-01 00:00:00
abstract::The haemodynamic mechanisms responsible for the appearance of paraparetic transient ischaemic attacks in ten patients with childhood moyamoya disease who subsequently underwent bifrontal omental transplantation were investigated. Cerebral perfusion (CP) was measured with 99mTc-hexamethylene-propyleneamine oxime single...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1995.11740306
更新日期:1995-06-01 00:00:00
abstract::The normal cerebral circulation has the ability to maintain a stable cerebral blood flow over a wide range of cerebral perfusion pressures and this is known as cerebral autoregulation. This autoregulation may be impaired in the injured brain. Closed head injury was induced in 28 Sprague-Dawley rats weighing 400-450 g....
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1997.11740832
更新日期:1997-08-01 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::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::We describe the technique of percutaneous carotid artery stent placement with distal protection in a patient in whom marked innominate artery ectasia prevented transfemoral access to the right common carotid artery. After induction of general anesthesia, ultrasound was used to guide direct puncture of the common carot...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164104225013978
更新日期:2004-04-01 00:00:00
abstract::In this study the pulsation-pressure relationship in an experimental model of aneurysms was analyzed. In addition, we have examined pulsatility of the aneurysmal wall reinforced by Guglielmi Detachable Coils (GDC). Bifurcation (BAn), aneurysms (LAn) and bilobar (BiA) aneurysms were produced in 15 mongrel dogs. The ane...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1996.11740440
更新日期:1996-08-01 00:00:00
abstract:INTRODUCTION:Neurotoxic homocysteine (Hcy) is thought to be an independent risk factor for neurodegenerative diseases, including Alzheimer's disease. This study is to determine whether HT22 cells, a murine hippocampal neuronal model, can be used as an in vitro model, besides the primary neuronal cultures, to investiga...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132811Y.0000000057
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:Surgical resection of complex glomus vagale tumors can be complicated by extensive blood loss and might require surgical sacrifice of an encased internal carotid artery. METHODS:A young patient presented with mass effect from glomus valage tumor. Computerized tomography angiography showed an encased interna...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/1743132812Y.0000000036
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVES:Epilepsy is a common seizure disorder affecting approximately 70 million people worldwide. Mitochondrial dysfunction and antioxidant/prooxidant imbalance are emerging as factors that contribute to epileptogenesis. As medical ozone was able to reestablish cellular redox balance and to maintain the protective ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132814Y.0000000445
更新日期:2015-03-01 00:00:00
abstract::HEADTOME III, a high resolution PET, has been employed using 15O and 18F labelled pharmaceuticals to evaluate histological malignancy of gliomas preoperatively. PET study was applied on eighteen preoperative gliomas including two recurrent cases. Haemocirculatory and metabolic indices of regional cerebral blood flow (...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1986.11739749
更新日期:1986-09-01 00:00:00
abstract:OBJECTIVE:The amyloid hypothesis stimulates the discovery of compounds, which promotes beta-amyloid peptide (Aβ) clearance, thereby altering the underlying pathophysiology of Alzheimer's disease (AD). Hence, the present study aims at the evaluation of anti-amyloidogenic potential of Gelidiella acerosa. METHODS:Prevent...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132814Y.0000000422
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:To determine the functional abnormalities of the Leu89Pro mutation in connexin32 (CX32), which we have previously reported is present within an X-linked dominant Charcot-Marie-Tooth disease family. In this family, male patients were moderately to severely affected. METHODS:We performed immunofluorescence to ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2016.1204494
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to characterize mouse neural stem cells (NSC) transduced by a multigenic lentiviral vector (LV) and stably express recombinant human nerve growth factor (rhNGF). We obtained NSC-derived cell lines which express human NGF in relevant amount to exploit their ability for therapeuti...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164106X115161
更新日期:2006-07-01 00:00:00
abstract::To investigate the migration of neural stem cells as well as neural plastic changes in epileptic brain, spaciotemporal expression of immunoreactive highly polysialylated neural cell adhesion molecule (PSA-NCAM) was examined in amygdala kindling development of rat. The neural migration and synaptic remodeling detected ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164103101200969
更新日期:2003-01-01 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::A 52-year-old male underwent lumboperitoneal shunting after external decompressive craniectomy. His postoperative course was accompanied by remarkable displacement of the intracranial structures to the opposite side of craniectomy. This phenomenon, probably caused by the siphon effect of cerebrospinal fluid shunting, ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1991.11739979
更新日期:1991-06-01 00:00:00
abstract::Previous work has shown that unsaturated fatty acid components of model membrane phospholipids in vitro, damaged via a free radical mechanism, are protected by the presence of cholesterol in these membranes. The participation of these membrane lipids in the pathogenesis of traumatic injury to brain was studied in vivo...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1981.11739608
更新日期:1981-01-01 00:00:00
abstract::The purpose of this prospective observational study was to investigate the relation between the frequency of critical neuromonitoring parameters (brain tissue pO2, (PtiO2) < or = 10 mmHg, intracranial pressure (ICP) > 20 mmHg, cerebral perfusion pressure (CPP) < or = 70 mmHg) and outcome after severe aneurysmal subara...
journal_title:Neurological research
pub_type: 临床试验,杂志文章
doi:10.1179/016164103101201823
更新日期:2003-07-01 00:00:00
abstract::A series of 15 arteriovenous malformations (AVMs) of the corpus callosum--9% of 170 intracranial AVMs admitted to the School of Medicine of the University of Rome during a 30-yr period--was studied. In all cases the lesion concerned mainly the corpus callosum, although in some it also involved the surrounding structur...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1982.11739626
更新日期:1982-01-01 00:00:00
abstract::Although the circulation of cerebrospinal fluid enjoys an apparent simplicity, its underlying basis is amazingly complex. Many factors influence how CSF flows through the human central nervous system. In the presence of hydrocephalus and subsequent shunt placement, this system is further complicated. The challenge bef...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1080/01616412.2000.11741037
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:The aim of this report was to set up an effective experimental model of cocultures between cells from spinal cord explants and myotubes from adductor muscle. METHODS:We obtained neuronal cells from chick spinal cord explants at embryonic day 5 (ED5) by means of an enzymatic digestion. Small spinal cord fragm...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313208X281064
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:Crossed-uncrossed differentials (CUDs) are viewed as surrogates for interhemispheric transfer time (IHTT). Not uncommonly CUDs assume statistically significant negative values (inverted CUDs). This raises doubts of the accepted interpretation of CUDs, i.e. intra- and inter-hemispheric routings of signals in ...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164106X115107
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:Tadalafil is a selective phosphodiesterase type 5 (PDE-5) inhibitor approved for the treatment of erectile dysfunction. Less is known about the electroencephalography (EEG) effects of PDE-5 inhibitors, and the present study, therefore, examined the risk of EEG abnormalities associated with tadalafil. METHOD:...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X382548
更新日期:2009-04-01 00:00:00