Abstract:
OBJECTIVE:We evaluate the bladder volume and pressure through recording the bladder afferent activity in the sacral nerve roots in acute experiments of paraplegic dogs. These measurements are intended to report the status of the bladder and to adjust the stimulation parameters of an implantable electric stimulator. METHODS:The extraction of neural information for feedback in functional electrical stimulation is limited by the poor signal to noise ratio (SNR) in the sacral nerve recordings. We propose to inject a very low amplitude sinusoidal current with high SNR to the bladder through the nerve using a tripolar cuff electrode wrapped around the S2 nerve root. The application of this current (0.4 microA peak to peak, 30 Hz) allows detecting bladder afferent activity in its amplitude and the tissues impedance of the nerve. Acute experiments in dogs were performed to evaluate the proposed method. In each dog, the bladder infusion with saline was carried out at both slow and high filling rates. At the same time, the changes in the amplitude of the sinusoidal output voltage V(OUT) were recorded through the cuff nerve electrode. RESULTS:The data obtained from 26 acute experiments using eight dogs demonstrate that the amplitude of the recorded sinusoidal voltage V(OUT) varies proportionally with the bladder pressure during the bladder filling with saline solution. It also demonstrates that the bladder volume can be estimated from the increasing amplitude of the recorded V(OUT). CONCLUSION:This study shows that the increase in the V(OUT) is proportionally related to the increase in bladder pressure. The difference between the recorded V(OUT) during the bladder filling and the baseline V(OUT) can be a useful indicator of the changes in the bladder volume.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Saleh A,Sawan M,Elzayat EA,Corcos J,Elhilali MMdoi
10.1179/016164108X268250subject
Has Abstractpub_date
2008-02-01 00:00:00pages
28-35issue
1eissn
0161-6412issn
1743-1328journal_volume
30pub_type
杂志文章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:OBJECTIVES:There is no definitive data regarding the usefulness of Brain microbleeds (BMBs) as an imaging marker with homeostatic markers to predict intracerebral hemorrhage (ICH) and ischemic stroke risk to personalize decisions on anticoagulation in AF. In this study, we prospectively evaluated clinical, radiological...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2018.1517111
更新日期:2018-12-01 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:BACKGROUND AND OBJECTIVE:Misery perfusion increases the risk of stroke recurrence in patients with symptomatic major cerebral artery occlusion. The ratio of brain perfusion contralateral-to-affected asymmetry in the cerebellar hemisphere to brain perfusion affected-to-contralateral asymmetry in the cerebral hemisphere ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000300
更新日期:2014-03-01 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:This study examined whether a needle-free acupuncture can be an alternative to conventional needle injection acupuncture. METHODS:Patients (n=101) suffering myofascial shoulder pain were randomly assigned to either needle-free or conventional needle injection acupuncture group. Bee venom was administered int...
journal_title:Neurological research
pub_type: 杂志文章,随机对照试验
doi:10.1179/016164109X12537002793760
更新日期:2010-02-01 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::The decrease in intracellular creatine concentration in Duchenne muscular dystrophy may contribute to the deterioration of intracellular energy homeostasis and may thus be one of the factors aggravating muscle weakness and degeneration. Oral creatine supplementation should have potential in alleviating the clinical sy...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2000.11741051
更新日期:2000-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Hypothermia has shown promise as a neuroprotective strategy for stroke. The use of whole body hypothermia has limited clinical utility due to many severe side effects. Selective brain cooling, or local brain hypothermia, has been previously proposed as an alternative treatment strategy. This st...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2016.1187827
更新日期:2016-06-01 00:00:00
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: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:OBJECTIVES:The stroke-prone spontaneously hypertensive rat is a genetic model of severe hypertension with secondary vascular alterations. The aim of this study was to determine the influence of chronic hypertension and ramipril treatment on the extracellular matrix in the cerebral microvasculature. METHODS:The study c...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164105X49256
更新日期:2005-07-01 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::Cerebral blood flow (CBF), 113mIndium-DPTA, and 14C-glucose extraction were measured simultaneously in rat brain from 2 to 58 days following a thermal insult. In the early stage of a cold induced lesion (2 days), the blood-brain barrier (BBB) was disrupted with resulting leakage and diffusionary loss of both glucose a...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1980.11739556
更新日期:1980-01-01 00:00:00
abstract::Brain tumours were induced by intracerebral inoculation of beagle puppies with Avian sarcoma virus (ASV) suspension. The inoculation produced solitary or multiple sarcomas in three dogs and intraventricular anaplastic gliomas in four dogs. At the time of the first tumour positive CT-control Iodine-125 seeds (activity ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1984.11739685
更新日期:1984-12-01 00:00:00
abstract::The frequency of skull metastasis from hepatocellular carcinoma (HCC) is increasing together with the recent progress in the management of the primary lesion. Cases are often complicated with poor general conditions or metastasis to the other organs, and not readily indicated for surgery. A direct injection of ethanol...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1998.11740593
更新日期:1998-12-01 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::Although radiation injuries to the brain are well documented, immediate early histological changes in the brain remain to be defined. The present study characterizes glial injury provoked in adult rat white matter within 24 h after a single irradiation of the whole brain (10 or 20 Gray). Irradiated brains were histolo...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164101101199324
更新日期:2001-12-01 00:00:00
abstract::This article covers the basis of tethered cord syndrome as a stretch-induced spinal cord disorder, including pathophysiology, signs and symptoms, imaging diagnosis, indication for surgical treatment, and surgical procedures. Anomalies that cause mechanical spinal cord tethering are listed, and the surgical untethering...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164104225017947
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Since the late 1990s, imaging studies have allowed the visualization of brain response to acupuncture stimulation with alteration in blood flow. In 1998, the first functional magnetic resonance imaging (fMRI) study for the Korean acupuncture was published and thereafter, many subsequent neuroimaging studies ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X172284
更新日期:2007-01-01 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::Endovascular reconstruction of basilar artery (BA) apex aneurysms has been augmented by adjunctive techniques such as balloon and stent assistance. We present three cases of a wide-necked BA apex aneurysm involving the bilateral P1 segments of both posterior cerebral arteries (PCAs) treated by placement of BA to PCA s...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164104225013969
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The predictive effect of blood cell ratio on ischemic event has been widely confirmed. Whether PWR and PNR can assess the risk of endovascular treatment (EVT) is largely unclear. This study aimed to investigate the prognostic value of PNR and PWR in acute ischemic stroke patients treated with EVT...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1790868
更新日期:2020-10-01 00:00:00
abstract::Aspirin and ticlopidine are two commonly used drugs in the prevention of cerebral embolic ischemic events. No direct comparisons in a cross-over design of the effects of ticlopidine and aspirin on asymptomatic circulating cerebral microemboli are available. We investigated 53 patients with cerebrovascular disease. Twe...
journal_title:Neurological research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/01616412.1996.11740450
更新日期:1996-10-01 00:00:00
abstract::The application of optical spectroscopy for intra-operatively delineating brain tumors has been studied in this paper. The classification of tissue as normal, tumor and boundary is done using the LAMSTAR neural network (NN). The objective is to combine both fluorescence and reflectance as attributes to be used for the...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164104225017802
更新日期:2004-09-01 00:00:00
abstract::Endolymphatic sac tumors are rare, low-grade adenocarcinomas of the petrous bone. These tumors are highly vascularized and surgical removal is often challenging. We present a staged endovascular-neurosurgical approach consisting of stent-assisted angioplasty of the petrous carotid, selective endovascular embolization ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164103101201436
更新日期:2003-04-01 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:INTRODUCTION:Alzheimer's disease (AD) is the most common neurodegenerative disease across the world. The major cause of AD is extensive oxidative stress and inflammation in central nervous system (CNS). Vitamin D3 and E are the most known vitamins that control oxidative stress and mitochondrial respiratory function. Th...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1787624
更新日期:2020-10-01 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::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