Abstract:
OBJECTIVE:To study histopathologic changes and the role of the microglia/macrophage cell in the therapeutic effect of I-125 interstitial brachytherapy on the cerebral gliomas. METHODS:Out of a series of 60 cases with cerebral astrocytomas and other brain tumors treated with I-125 interstitial brachytherapy, autopsy materials were available in ten cases 0.75 and 60 months after irradiation. The patients were treated with the maximum dosage (60 Gy) on the tumor periphery. Besides the routine hematoxylin-eosine and Mallory's PTAH trichrome staining, immunohistochemical reactions were carried out for CD15, CD31, CD34, CD45, CD68, CPM, HAM56 and HLR-DR antigens on paraffin sections to study immunologic phenotypic characteristics of the reaction cell population around gliomas after I-125 treatment. RESULT:One month after irradiation, a necrotic zone developed around the I-125 seeds within the 72 Gy isodose curve. Histologically, there was a fresh coagulation necrosis in the center of the lesion. Reactive zone has not yet developed but scattered interstitial and perivascular CD68 positive macrophages were present in the surrounding brain tissues. Six months after the I-125 isotope treatment, a reactive zone developed: a microglial rim around the necrosis tissue, and a broad area of proliferating vessels and glial fibrillary acidic protein (GFAP) positive astroglial cells which contained CD68 positive activated microglial and macrophage cells. Fifty-four months after I-125 interstitial irradiation, the necrotic center became colliquative and cystic. The microglial rim was replaced by round end stage (HLR-DR and CD31 positive) macrophages. The reactive zone was characterized by astrocytic gliosis but vascular proliferation and macrophages were lacking. CONCLUSION:Results of the present immunohistochemical study suggest that the early lesions are characterized by migrating macrophages apparently concerned with the removal of necrotic debris. The established phase of reactive zone around the necrotic center is characterized by a narrow inner rim of microglial accumulation and a broad outer area characterized by astrocytic gliosis, vascular proliferation, activated microglia and infiltration by macrophages. In the burned-out phases of I-125 interstitial brachytherapy of gliomas, the necrosis undergoes liquefaction and the microglial rim is replaced by astrocytic gliosis which can be considered as equivalent to the scar tissue formed around necrosis outside the central nervous system.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Julow J,Szeifert GT,Bálint K,Nyáry I,Nemes Zdoi
10.1179/016164107X158875subject
Has Abstractpub_date
2007-04-01 00:00:00pages
233-8issue
3eissn
0161-6412issn
1743-1328journal_volume
29pub_type
临床试验,杂志文章abstract::A case is reported of intractable epilepsy associated with a hypothalamic hamartoma in an 18 year old man. The patient underwent a two-third anterior callsotomy and, subsequently, removal of the hamartoma. Callosotomy did not affect the generalized seizure pattern. The authors believe this to be the first documented c...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1993.11740125
更新日期:1993-04-01 00:00:00
abstract::Corticotrophin releasing factor has been shown in several models of tissue injury to be an effective treatment for edema. In a previous study we demonstrated this ability in two models of traumatic brain injury (TBI). The aim of this study was to assess whether human corticotrophin releasing factor (hCRF) could additi...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2000.11740737
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:One of the important causes of failed back surgery is the extensive peridural fibrosis collecting in the surgical field after spinal surgeries. Today we know that inflammatory mechanisms mediated by the immune system of the body plays an important role in generation of fibrosis. Azithromycin, a macrolide anti...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12767786356471
更新日期:2011-05-01 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::This study was performed to test whether GYKI 52466, a nonNMDA receptor antagonist, would improve microregional oxygen supply and consumption balance in the focal cerebral ischemic area. Rats were anesthetized with 1.4% isoflurane. For the GYKI Group (n = 8), 10 min before middle cerebral artery (MCA) occlusion, a bol...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1999.11740935
更新日期:1999-04-01 00:00:00
abstract:OBJECTIVES:Papaverine has been used in treating vasospasm following subarachnoid hemorrhage (SAH). However, its action mechanism for cerebral vascular relaxation is not clear. Potassium and calcium channels are closely related to the contraction and relaxation of cerebral smooth muscle. Therefore, to identify the role ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X191021
更新日期:2007-09-01 00:00:00
abstract::Decreased metabolic rate may precede cognitive impairment in Alzheimer's disease (AD) and is thus an early occurring hallmark. Several observations in post-mortem brain indicate that activated neurons are better able to withstand aging and AD, a phenomenon paraphrased by us as 'use it or lose it'. Moreover, a number o...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164103101201959
更新日期:2003-09-01 00:00:00
abstract:OBJECTIVES:To assess prospectively the significance of sonographic measurements of the median nerve in the diagnosis of carpal tunnel syndrome (CTS), to look for proper parameters and cutoff values for the sonographic diagnosis, and to correlate with the electrophysiological findings. MATERIALS AND METHODS:This study ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132811Y.0000000028
更新日期:2011-11-01 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
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journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313208X291612
更新日期:2008-07-01 00:00:00
abstract::In addition to its possible role as a replacement source in CNS degenerative diseases, neural transplantation may be used to augment the normal production of neuroactive substances. Our laboratory at the University of Illinois at Chicago has shown, in both acute and chronic pain models, that transplantation of adrenal...
journal_title:Neurological research
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1080/01616412.1997.11740775
更新日期:1997-02-01 00:00:00
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journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164106X98125
更新日期:2006-04-01 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:To evaluate the effects of electrical stimulation (ES), stretching and their combined effects in matrix metalloproteinases (MMPs) gene expression and activity during early denervation of rat tibialis anterior (TA) muscle by axonotmesis. METHODS:Thirty adult male Wistar rats were divided into five groups: no...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X459093
更新日期:2010-10-01 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:OBJECTIVE:Cell-free DNA (cf-DNA) is a marker of inflammation and cell death. The purpose of the present study was to analyze the role of cf-DNA as a putative biomarker in refractory epilepsy. METHODS:Baseline concentration of cf-DNA was measured in the serum of 51 carefully evaluated refractory epilepsy patients under...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2015.1127004
更新日期:2016-01-01 00:00:00
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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::There have been reports that superior cervical ganglionectomy (SCG) is effective as a treatment for cerebral vasospasm following subarachnoid haemorrhage (SAH). On the other hand, denervation supersensitivity is supposed to play an important role in vasospasm. The two accounts contradict each other. To investigate thi...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1988.11739836
更新日期:1988-09-01 00:00:00
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journal_title:Neurological research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1179/1743132815Y.0000000092
更新日期:2015-11-01 00:00:00
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journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/1743132814Y.0000000435
更新日期:2015-03-01 00:00:00
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journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000088
更新日期:2012-11-01 00:00:00
abstract::We studied brain temperature and the effect of mild hypothermia in 58 patients after severe head injury (SHI). Brain tissue oxygen tension (ptiO2), carbon dioxide tension (ptiCO2), tissuie pH (pHti) and temperature (T.br) were measured using a multiparameter probe. Microdialysis was performed to measure glucose, lacta...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164102101199710
更新日期:2002-03-01 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: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: To explore the neural substrates of implicit self-esteem in university students. METHODS: The subjects comprised four females and six males (aged 20-25 years). They were asked to finish the implicit association test (IAT) for implicit self-esteem while brain electrical activity was recorded at 64 scalp site...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X431138
更新日期:2009-07-08 00:00:00
abstract::The possibility of the evaluation of ischemia solely by the momentary values of regional cerebral blood flow (rCBF) was investigated. Ischaemic damage was evaluated histopathologically and by observing albumin extravasation. Unilateral carotid clippings were performed for 1 h and the gerbils evaluated with regard to t...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1988.11739846
更新日期:1988-12-01 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::Regional glucose utilization was measured in the rat brain after occlusion of the middle cerebral artery. Normoglycaemic rat had increased glucose use in the cerebral cortex adjacent to the infarct. A fraction of the nerve cells were irreversibly injured in this region. In hyperglycaemic rats, the glucose metabolism r...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1987.11739802
更新日期:1987-12-01 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: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