Maria José Marques Sá

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We have previously shown that in the hippocampal formation of patients with acquired immunodeficiency syndrome (AIDS) there is neuronal atrophy, without cell loss. Because reductions in neuronal size are suggestive of associated neuritic alterations, we decided to study the dendritic trees of the main neuronal populations in the hippocampal formation.(More)
Prolonged seizures induced by neurotoxins or intracranial electrical stimulation provoke death of hippocampal neurons, which results in conspicuous learning and memory deficits. We examined whether repeated brief seizures elicited by electroconvulsive shock (ECS) can also deteriorate hippocampal structure and function. Adult Wistar rats were administered(More)
Although cognitive dysfunction is a common finding in patients with acquired immunodeficiency syndrome (AIDS) its pathogenesis remains controversial. Given the involvement of the hippocampal formation in the processing of cognitive information and the scarcity of quantitative studies in this brain region, we have examined, using stereological methods, the(More)
Complex III of the mitochondrial respiratory chain (CIII) catalyzes transfer of electrons from reduced coenzyme Q to cytochrome c. Low biochemical activity of CIII is not a frequent etiology in disorders of oxidative metabolism and is genetically heterogeneous. Recently, mutations in the human tetratricopeptide 19 gene (TTC19) have been involved in the(More)
OBJECTIVE To determine the predictive value of social support on health related quality of life (HRQoL) in multiple sclerosis (MS) patients. METHODS The sample is composed by 150 MS consecutive patients. We used the Medical Outcomes Study Social Support Survey to assess social support and the Health Status Questionnaire to assess HRQoL. For inferential(More)
A significant incidence and prevalence of psychological disorders in multiple sclerosis (MS) has been reported. Their underlying mechanisms and the extent to which they are reactive to psychosocial factors or symptoms of the pathological process itself, remain unclear. Depression is the predominant psychological disturbance with lifetime prevalence around(More)
UNLABELLED Interferon beta (IFNβ) and glatiramer acetate (GA) were the first immunomodulators approved to the treatment of relapsing-remitting multiple sclerosis (MS) and clinically isolated syndromes. Despite the enlargement of the therapeutic armamentarium, IFNβ and GA remain the most widely drugs and the therapeutic mainstay of MS. OBJECTIVE To review(More)
Multiple sclerosis (MS) is an incurable disease, and despite current pharmacologic treatment being effective in reducing relapse rates and lesion burden, there is little evidence that these treatments work as effectively in preventing disability progression. In such cases, non-pharmacologic techniques such as exercise therapy with rehabilitation purposes(More)