Abstract:
:The myelin sheaths that surround axons in the CNS are made and maintained by oligodendrocytes. These glial cells can form variable numbers of myelin segments (internodules): from 1 to 200 so that when one oligodendrocyte is destroyed with preservation of the axon, many internodules can be lost, constituting a demyelinating process. As a consequence of the destruction of myelin and sheath cells a rapid and abundant cell response takes place. The response is made up by resident (microglia) and haematogenous phagocytes which phagocytose myelin and cellular debris leaving the axons demyelinated. Demyelinated axons may either stay demyelinated and clumped together or they may be separated by astrocytic processes, yet they can be remyelinated. The occurrence of remyelination depends upon the intensity and time of exposition to the demyelinating agent. Remyelination in the CNS with complete restoration of conduction may be made by oligodendrocytes or Schwann cells which invade the CNS when astrocytes are destroyed.
journal_name
Arq Neuropsiquiatrjournal_title
Arquivos de neuro-psiquiatriaauthors
Graça DLdoi
10.1590/s0004-282x1988000300010subject
Has Abstractpub_date
1988-09-01 00:00:00pages
292-7issue
3eissn
0004-282Xissn
1678-4227journal_volume
46pub_type
杂志文章,评审abstract::Five cases of acute spinal epidural abscess, all in male, two of them in children (6 and 7 years old) and the others in patients older than fifty years are reported. In four cases the pathology was related to skin infection and the staphylococcus was the main agent. All the patients had a severe infectious clinical pi...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1981000200008
更新日期:1981-06-01 00:00:00
abstract::Idiopathic generalized epilepsy (IGE) is often not recognized with serious consequences on the sufferers. We examined factors contributing to the missed diagnosis of IGE in 41 adults attending our epilepsy clinic with diagnosis of partial epilepsy who had semiology or EEG findings suggesting a possible differential di...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract::Huntington disease (HD) is a progressive neurodegenerative disorder with autosomal dominant inheritance, characterized by choreiform movements and cognitive impairment. Onset of symptoms is around 40 years of age and progression to death occurs in approximately 10 to 15 years from the time of disease onset. HD is asso...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2000000100002
更新日期:2000-03-01 00:00:00
abstract::The use of opioids for treatment of non-malignant pain is controversial. The evaluation of pain relief and of the quality of life of 11 severely incapacitated chronic non-cancer pain patients treated with long term intrathecal infusion of opioids trought implantable pumps was performed. The mean duration of pain compl...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 临床试验,杂志文章
doi:10.1590/s0004-282x1998000300008
更新日期:1998-09-01 00:00:00
abstract::The appearance of unilateral papilledema in the fundus photos of 6 women with pseudotumor cerebri is presented. Associated findings included obesity in 5 and a partially empty sella in 2. The possible explanations for the development of unilateral papilledema in pseudotumor cerebri are reviewed and favor a mechanism t...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1985000200005
更新日期:1985-06-01 00:00:00
abstract::Neuroradiologic, neuropathologic and immunohistochemical features are reported in a young man with a impairment of the central nervous system mimicking an acute diffuse encephalomyelitis. A white male, 17 years old, healthy till 4 months before, when developed a right hemiparesis and after 2 months a bilateral hemipar...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1997000300023
更新日期:1997-09-01 00:00:00
abstract::The term dystonia was proposed by Hermann Oppenheim in 1911, but reports of cervical dystonia are finding since the Roman Empire. The differentiation of the dystonia between a neurological and a psychiatric disease turned a lot. Sometimes was proposed, further, the exclusion of the dystonia as a different phenomenon a...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 传,历史文章,杂志文章
doi:10.1590/0004-282x20140056
更新日期:2014-07-01 00:00:00
abstract::A case of a 10-year-old patient with a benign congenital myopathy, suddenly aggravated because of an accentuated deficit in respiratory muscles is reported. The institution of assisted respiration at night allowed the patient to return to her daily activities. Examination of muscular biopsy with ultra-microscope permi...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1983000100008
更新日期:1983-03-01 00:00:00
abstract::The indication for thymectomy in myasthenia gravis still is controversial, and it is uncommon to find in the present days studies comparing conservative treatments, due to the widespread surgical treatment adopted in most centers. We studied 65 cases divided into three groups of patients: (1) 15 thymectomized patients...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1991000400007
更新日期:1991-12-01 00:00:00
abstract:BACKGROUND:Malignant infarction of the middle cerebral artery (MCA) occurs in a subgroup of patients with ischemic stroke and early decompressive craniectomy (DC) is one of its treatments. OBJECTIVE:To investigate the functional outcome of patients with malignant ischemic stroke treated with decompressive craniectomy ...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/0004-282X20200006
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVE:The Game Dice Task (GDT) was developed to measure decision making under known risk. The aim of this study was to translate and adapt the GDT to a Brazilian population. METHOD:After the GDT was translated and back-translated to Brazilian Portuguese and evaluated by eight bilingual judges, 175 Brazilian adults...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2012001200005
更新日期:2012-12-01 00:00:00
abstract::In a population of 2307 children, 69 (2.99%) showed in the EEG high-voltage evoked potentials (evoked spikes) elicited by tapping on the feet or hands. Febrile convulsions were mentioned in 226 cases, and 13 of them showed the evoked spikes in the EEG and were otherwise neurologically and psychologically normal. Assoc...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1988000200003
更新日期:1988-06-01 00:00:00
abstract::Epilepsy causes restrictions in the performance of various daily activities. The aiming of this study was to investigate whether these restrictions affect the perceived quality of life. The assessments Quality of Life in Epilepsy-31 (QOLIE-31) and Canadian Occupational Performance Measure (COPM) were applied in a samp...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2012000200013
更新日期:2012-02-01 00:00:00
abstract:OBJECTIVE:Basilar tip aneurysms (BTAs) have a complex anatomy, making them difficult to treat. We describe our surgical results for BTAs. METHODS:From 2004 to 2015 (12 years), a total of 25 small BTAs and two giant BTAs were treated in the Hospital do Servidor Público Estadual de São Paulo. RESULTS:In 23 patients har...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/0004-282x20170120
更新日期:2017-10-01 00:00:00
abstract::Ventriculoperitoneal shunt operations represent the most used choice for treating hydrocephalus, although some related complications have been reported. Due to its rarity, potential dangers, and mortality rate, we present two cases of epidural hematoma following ventriculoperitoneal shunt, discussing its pathophysiolo...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1998000400017
更新日期:1998-09-01 00:00:00
abstract::Leprosy is a chronic infectious peripheral neuropathy caused by Mycobacterium leprae. The different clinical presentations of the disease are determined by the quality of the host immune response. Early detection of leprosy and treatment by multidrug therapy are the most important steps in preventing deformity and dis...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章,评审
doi:10.1590/0004-282X20130146
更新日期:2013-09-01 00:00:00
abstract::Quantitative electromyography is an important tool to evaluate myopathies, and some difficult-to-treat asthmatic patients may have a subclinical corticosteroid myopathic process, using only inhaled corticosteroid, according to some studies. In this report, diaphragm quantitative electromyography was used to evaluate a...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/0004-282X20190085
更新日期:2019-09-05 00:00:00
abstract::Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a peripheral nerve disorder probably due to an immunological disturb. It evolves either in a steadily progressive or in a relapsing and fluctuating course. Weakness is mainly in the lower limbs proximally and distally. The electromyography is demyelin...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2005000400021
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:Primary headaches, and particularly migraine and tension-type headache (TTH) as well as hypothyroidism are common medical conditions. To date, numerous studies have suggested a possible bidirectional relationship between migraine and hypothyroidism, although certain studies had contradictory results. OBJECT...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/0004-282X20200070
更新日期:2020-11-01 00:00:00
abstract::A new anti-epileptic agent (barbexaclone) was tried in 48 patients suffering from epilepsy and presenting a total of 67 types of crises. All the patients were considered "bad cases" because either by the intensity of the epileptic manifestations or by their refractoriness to the usual medications. The results, similar...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1977000300012
更新日期:1977-09-01 00:00:00
abstract:UNLABELLED:Headaches occur frequently and thus are a key component of sociocentric medical education. OBJECTIVE:To study headaches among students of medicine and psychology in a single university. METHOD:This was a questionnaire-based survey of a cohort of students of medicine and psychology. RESULTS:The overall lif...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2011000400018
更新日期:2011-06-01 00:00:00
abstract::Thirty-four consecutive adult patients with subdural traumatic hygroma were analysed for clinical evolution, serial computed tomography scan (CT), and magnetic resonance imaging (MRI) over a period of several months. Five of the patients presented CT scan and MRI evolution data showing increasing density over a period...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2007000100015
更新日期:2007-03-01 00:00:00
abstract::The authors present a case of acute subdural haematoma evacuated in the presence of a coagulopathy. Some elements necessary for the understanding of the etiopathogenesis of the disease are discussed. ...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1985000300009
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVES:To observe postpartum migraine recurrence among migraine sufferers before pregnancy, its classifications and associated factors and to compare women, who were exclusively breastfeeding, with those that used other forms of infant feeding. METHODS:Out of 686 consecutively assisted women, at the first postnata...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2012000600009
更新日期:2012-06-01 00:00:00
abstract::By the neurological, electromyographic, anatomopathological and bacterioscopic examinations of 100 pacients with leprosy the following conclusions have been drawn: There was a high incidence of reflex abnormalities. The proprioceptive reflexes were abnormal in 64.5% and the superficial reflexes in 70.8% of the cases. ...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1976000100001
更新日期:1976-03-01 00:00:00
abstract::The involvement of the leptomeninges by metastatic tumors can be observed in solid tumors, in which case it is termed meningeal carcinomatosis (MC), and in lymphoproliferative malignant disease. It is more common in breast and lung cancer, as well as melanoma, with adenocarcinoma being the most frequent histological t...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章,评审
doi:10.1590/s0004-282x2011000700024
更新日期:2011-12-01 00:00:00
abstract::Febrile seizures (FS) affect almost 2-5% of children and factors related to an increase susceptibility of children to FS may involve an imbalance of inflammatory cytokines and genetic factors. FS had low morbidity, but may be associated with the occurrence of late chronic epilepsy. Here we describe factors related to ...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章,评审
doi:10.1590/s0004-282x2011000300022
更新日期:2011-01-01 00:00:00
abstract::The authors report 6 cases of cerebrospinal fluid (CSF) examinations in which malignant cells were found. In 5 cases the finding was incidental: medulloblastoma (case 1); malignant melanoma (case 2); adenocarcinoma (case 3); meningitis carcinomatosa (case 4) and neuroleukaemia (case 5). In only one case neuroleukaemia...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1986000200008
更新日期:1986-06-01 00:00:00
abstract::Hypoxemia secondary to sleep apnea is commonly seen in patients with acromegaly, and this alteration apparently leads to considerable morbidity and mortality among such patients. With the objective of identifying hypoxemia based on clinical data, we conducted a cross-sectional study of 34 patients with acromegaly, all...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x2007000200009
更新日期:2007-06-01 00:00:00
abstract::The clinical and neurological study in four neonates infants with cerebral infarction are reported. The purpose of this study is to call attention for the clinical course, cranial ultrasound, computed tomography and laboratories tests, in order to evaluate the neurological sequelae. A careful evaluation has be taken i...
journal_title:Arquivos de neuro-psiquiatria
pub_type: 杂志文章
doi:10.1590/s0004-282x1999000100016
更新日期:1999-03-01 00:00:00