Abstract:
:Mountain trekking is significantly increasing in popularity. Hypoxia seems to play a key role in the pathogenesis of acute mountain sickness (AMS). The purpose of this study was to investigate regional cerebral (rSO2) and peripheral (SaO2) oxygen saturation for the first time, during 22 days high altitude trekking (measurement points: 3450, 4450, 4750, 5050 and 2850 m) in the Khumbu region of Nepal with near infrared spectroscopy and pulse oximetry. We examined 17 healthy volunteers 19-65 years old (8 female, 9 male; mean age +/- SD, 46.1 +/- 13.1 years). RSO2 and SaO2 were significantly (p < 0.001, ANOVA, Tukey test) decreased at high altitudes (4450, 4750 and 5050 m). The decrease in cerebral oxygen saturation was more pronounced at higher altitudes than in the periphery (rSO2/SaO2 = 0.56 at 5050 m). At higher altitudes (> 4450 m), two subjects showed reversible symptoms of AMS. The present data indicates that acute reduction in rSO2 values might be a primary cause of AMS, however, further studies and analysis are necessary to correlate our findings with cerebral symptom scores.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Hadolt I,Litscher Gdoi
10.1179/016164103101201175subject
Has Abstractpub_date
2003-03-01 00:00:00pages
183-8issue
2eissn
0161-6412issn
1743-1328journal_volume
25pub_type
杂志文章abstract:OBJECTIVES:The purpose of this study was to investigate the ability of bone marrow mesenchymal stem cells (BMSCs) to survive in the striatum and improve motor function in the quinolinic acid (QA) lesion rat model of Huntington's disease (HD). METHODS:One week following QA lesioning of the striatum, rats were transplan...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12816242542571
更新日期:2011-04-01 00:00:00
abstract::The effects of etomidate on focal cerebral ischaemia following transorbital occlusion of the cat middle cerebral artery were investigated. Etomidate had no effect on CBF before or after onset of ischaemia by comparison with controls, but caused a greater fall in CBF in cats with high preocclusion or initial ischaemic ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1986.11739756
更新日期:1986-12-01 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::The object of the study was to evaluate brain tissue oxygenation (p(ti)O2) for intra-operative monitoring of critical ischemic events during early cerebral aneurysm surgery of the anterior circulation supplementary to somatosensory evoked potentials (SEPs). P(ti)O2 was continuously evaluated during surgery for an intr...
journal_title:Neurological research
pub_type: 临床试验,杂志文章
doi:10.1179/016164102101200528
更新日期:2002-09-01 00:00:00
abstract:OBJECTIVE:To investigate the perfusion parameters of computed tomography (CT) in hypoxicischemic encephalopathy (HIE) after off-pump coronary artery bypass grafting (OPCABG), and its potential in predicting the occurrence and prognosis of hypoxic-ischemic encephalopathy. METHODS:We selected 830 patients. The patients ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2017.1315862
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:Numerous studies have identified different predictors for secondary hydrocephalus after aneurysmal subarachnoid hemorrhage (SAH), although predictors regarding timing of the shunt operation have never been reported. Predictors for an early shunt, which was defined as a shunt operation performed ≤30 days after...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2016.1199184
更新日期:2016-07-01 00:00:00
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-ed...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164106X91843
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVE:Meningiomas are benign intracranial tumors growing from the arachnoid cap cells. Although their behavior is usually benign, they tend to recur even after total removal, and their recurrence is dependent on different aspects. METHODS:Between 1991 and 2002, 463 patients with an intracranial meningioma were ope...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313208X338043
更新日期:2009-06-01 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:OBJECTIVES:In the clinical set, autologus nerve grafts are the current option for reconstruction of nerve tissue losses. The length of the nerve graft has been suggested to affect outcomes. Experiments were performed in the rat in order to test this assumption and to detect a possible mechanism to explain differences i...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164105X18494
更新日期:2005-09-01 00:00:00
abstract::Lectin-like oxidized low-density lipoprotein receptor (LOX-1) and monocyte chemoattractant protein-1 (MCP-1) are molecules involving in the initiation and progression of atherosclerosis. In order to examine a possible difference in LOX-1 and MCP-1 expressions depending on the severity of early stage of atherosclerosis...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164104225016074
更新日期:2004-10-01 00:00:00
abstract::Cerebral hemorrhages are subject to a heavy short- and long-term case fatality. A study of prognostic factors and of relative survival based on the data of a population registry is of great value to study patients having a hematoma of all ages, irrespective of the method of care. We have listed 183 patients having a c...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2000.11740754
更新日期:2000-12-01 00:00:00
abstract:OBJECTIVE:The role of inflammation in cognitive alterations in a post-operative setting is still not fully understood. Surgical interventions can cause systemic inflammations which eventually can induce neuroinflammation. However, the main causes of functional changes after surgery are still elusive. In this study, we ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2016.1242452
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:Venous compression might be the main cause of incomplete decompression and symptom recurrence after microvascular decompression (MVD) in patients with trigeminal neuralgia. Although it can be killed in most cases, cutting the vein sometimes has the potential risk arising from venous congestion. To maneuver th...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313208X289624
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:High blood pressure (BP) is a major risk factor for stroke and all of its pathological subtypes including subarachnoid hemorrhage (SAH). However, there is little evidence demonstrating whether failure to have regular BP measured could result in underestimation of people at risk for SAH. Therefore, we aimed ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132811Y.0000000020
更新日期:2011-12-01 00:00:00
abstract::We investigated the neuroprotective effects of a novel 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor (pitavastatin) on ischemic neuronal damage in gerbils using immunohistochemistry. The animals were allowed to survive for 14 days after 5 min of ischemia induced by bilateral occlusion of the comm...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164104225014102
更新日期:2004-09-01 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::It is known that mitochondrial ATP-sensitive potassium channels (mitoKATP) play a significant role in protecting cerebral function from ischemia-reperfusion injury, which is related with a decrease in the mitochondrial matrix calcium. However, the effect of mitochondrial calcium uniporter (MCU) on diazoxide-induced ce...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000299
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:After a spinal cord injury (SCI), most men experience fertility related problems including poor semen quality in which decreased sperm viability and motility, have been proposed to be related to the accessory sex glands dysfunction. In this study, we investigated the probable effects of SCI on the seminal ves...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164108X268287
更新日期:2008-06-01 00:00:00
abstract::Rats were exposed in utero plus 60 days post-partum to either complex music (Mozart Sonata (k. 448)), minimalist music (a Philip Glass composition), white noise or silence, and were then tested for five days, three trials per day, in a multiple T-maze. By Day 3, the rats exposed to the Mozart work completed the maze m...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1998.11740543
更新日期:1998-07-01 00:00:00
abstract:OBJECTIVE:To assess the clinical significance of hepatitis B virus (HBV) infection in patients with cerebral venous sinus thrombosis (CVST). METHODS:Twenty-two patients with CVST confirmed by magnetic resonance venography (MRV) or digital subtraction angiography (DSA) and 743 controls with ischemic stroke confirmed by...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132815Y.0000000003
更新日期:2015-06-01 00:00:00
abstract::The possible role of nitric oxide (NO) on vibrissa-stimulated increase of regional cerebral cerebral blood flow (rCBF) and cerebral metabolic rate of glucose (rCMRglu) was investigated in conscious Wistar rats by using an inhibitor of NO synthase, NG-nitro-L-arginine (NOLAG) at a concentration of 30 mg/kg. In vivo aut...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1993.11740103
更新日期:1993-02-01 00:00:00
abstract::Using magnetic resonance imaging, we reviewed 141 infratentorial infarcts in 81 consecutive cases: 65 infarcts were seen in the paramedian pons, while 18 in the posterior inferior cerebellar artery (PICA) territory and 17 in the watershed area between PICA and superior cerebellar artery. No comparable sign or symptom ...
journal_title:Neurological research
pub_type: 临床试验,杂志文章
doi:10.1080/01616412.1994.11740217
更新日期:1994-06-01 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::The ocular microtremor (OMT) is mediated by the oculomotor area of the brainstem and is altered in several pathologic states, including traumatic brain injury, general anesthesia, brain death, coma, Parkinsonism and multiple sclerosis. The EYETECT tremor monitor is a non-invasive means of measuring the frequency and a...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164107X240198
更新日期:2007-10-01 00:00:00
abstract:BACKGROUND:Giant and large intracranial aneurysms represent enormous therapeutic challenges for neurosurgeons as well as for endovascular therapists. Since they may involve entire vessels or be irregular in shape, the rate of complete obliteration with GDCs is low and the incidence of recanalization is very high. So th...
journal_title:Neurological research
pub_type: 临床试验,杂志文章
doi:10.1179/174313208X319017
更新日期:2008-07-01 00:00:00
abstract:OBJECTIVES:Transient ischemic attack (TIA) with carotid artery disease (CAD) can increase the risk of cognitive decline. However, the neural mechanisms of the disorder remain unclear. The aim of this study was, using diffusion tensor imaging (DTI), to detect microstructural changes in patients with symptomatic CAD pres...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000255
更新日期:2014-01-01 00:00:00
abstract::The aim of this study was to examine the pre-operative clinical and neuromonitoring courses in patients with a decompressive craniectomy to assess and to compare clinical and neuromonitoring signs indicating extensive cerebral edema. We conducted a retrospective analysis of the clinical signs and courses of simultaneo...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164103101201742
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVE:This study intends to investigate the prognostic value of perfusion-weighted magnetic resonance imaging in acute intracerebral hemorrhage. METHODS:Demographic, clinical and biochemical data between acute intracerebral hemorrhage (AICH) and healthy volunteer groups were assessed in this study, such as rCBV an...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2016.1177932
更新日期:2016-07-01 00:00:00
abstract::Refractory status epilepticus (RSE), defined as status epilepticus that fails to respond to the acute administration of two antiepileptic medications, occurs in approximately a third of patients with status epilepticus, and is associated with increased hospital length of stay, mortality, and functional disability. Com...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/1743132812Y.0000000128
更新日期:2013-03-01 00:00:00