Psicanálise e seu papel na plasticidade cerebral: muito mais que um simples blá, blá, blá

Universidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaUNIFESP, EPMSciEL

Sudden unexpected death in people with down syndrome and epilepsy: another piece in this complicated puzzle

Universidade Federal de São Paulo (UNIFESP) Escola Paulista de Medicina Departamento de FisiologiaAssociação de Pais e Amigos dos Excepcionais de São PauloUNIFESP, EPM, Depto. de FisiologiaSciEL

Psychoanalysis and its role in brain plasticity: much more than a simple bla, bla, bla

Universidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaUNIFESP, EPMSciEL

Estudo metabólico do modelo de epilepsia induzido por pilocarpina

BV UNIFESP: Teses e dissertaçõe

Realce miócito específico ligado a expressão do fator 2C (MEF2C) no giro denteado durante o desenvolvimento e após uso de pilocarpina induzindo status epilepticus: estudo preliminar

OBJECTIVE: As axon outgrowth and dentate granule cell neurogenesis are hallmarks of hippocampal development and are also the two morphologic changes in the structure of the dentate gyrus after status epilepticus (SE), we hypothesized that molecules involved in normal development may also play a role during epileptogenesis. METHOD: Using in situ hybridization, we have characterized mRNA expression of myocyte-specific enhancer binding factor 2C (MEF2C) in the dentate gyrus during development (P0, P3, P7, P14 and P28) and at multiple time points following pilocarpine-induced SE (3, 7, 14, 28 days after SE). RESULTS: It was demonstrated that MEF2C is up-regulated during development (P0, P3, P7, P14 and P28) and in the adult rat dentate gyrus following SE (3, 7, 14, 28 days after SE). CONCLUSIONS: The molecules controlling cell-fate decisions in the developing dentate gyrus are also operative during epileptogenesis.OBJETIVO: Como o crescimento axonal e a neurogênese do giro denteado são características intrínsecas do hipocampo durante o processo de desenvolvimento, e também são duas alterações morfológicas na estrutura do giro denteado após o status epilepticus (SE), nós hipotetizamos que as moléculas envolvidas no processo normal do desenvolvimento hipocampal também podem participar do processo de epileptogênese. MÉTODO: Utilizando hibridização in situ, caracterizamos a expressão do RNAm do fator de transcrição myocyte-specific enhancer binding factor 2C (MEF2C) no giro denteado durante o desenvolvimento (P0, P3, P7, P14 e P28) e em diferentes períodos após o SE (3, 7, 14, 28 dias após SE). RESULTADOS: Foi demonstrado um aumento da expressão de MEF2C no giro denteado durante o desenvolvimento e no giro denteado de animais adultos após o SE. CONCLUSÃO: As moléculas que controlam o destino celular durante o processo de desenvolvimento também estão operativas durante o processo de epileptogênese

Exposicao ambiental a poluicao do ar e um evento agravante para a ocorrencia de morte subita nas epilepsias

It is extremely difficult to estimate the occurrence of sudden unexpected death in epilepsy (SUDEP). On the other hand, discovering and carefully evaluating new risk factors that may contribute to the onset of cardiovascular abnormalities in people with refractory epilepsy may prevent fatal events in these individuals. In this context, we should not ignore that urban air pollution is a leading problem for environmental health and is able to cause serious cardiovascular dysfunctions that culminate in sudden death. In this regard, we aimed to determine whether environmental exposure to air pollution is an aggravating event for SUDEP.É extremamente difícil estimar a ocorrência de morte súbita em epilepsia (SUDEP). Por outro lado, detectar e avaliar cuidadosamente novos factores de risco que podem contribuir para o aparecimento de alterações cardiovasculares em pessoas com epilepsia refratária poderá ser capaz de impedir a ocorrência de eventos fatais nestes indivíduos. Neste contexto, não devemos negligenciar hoje que a poluição do ar nas grandes cidades é um problema para a saúde ambiental, podendo causar graves disfunções cardiovasculares, que culminam em morte súbita. Neste sentido, propusemos nesse trabalho que a exposição ambiental a poluição do ar é um evento agravante para a ocorrência de SUDEP

Glucose utilization during interictal intervals in an epilepsy model induced by pilocarpine: A qualitative study

Purpose: Interictal intervals in pilocarpine-induced chronic epilepsy are characterized by apparent normal electrographic activity and longer sleep periods or drowsiness or both. Sparse information exists concerning the neural network activity during these seizure-free intervals. in our research, all [C-14]2-deoxy-D-glucose (2DG) autoradiographic technique was used to investigate interictal changes in the metabolism of the epileptic rat brain.Methods: Epileptic mts were monitored by video-EEG for similar to 120 days, with [C-14]2DG injected after a seizure-free interval of greater than or equal to 24 h.Results: Autoradiographic analysis revealed an increase in glucose utilization by several brain regions; the most consistent increase was found in the lateral posterior thalamic nucleus and prerectal region.Conclusions: These findings suggest that the lateral posterior thalamic nucleus and the prerectal region may be involved in cerebral circuits inhibiting epileptic activity during interictal intervals

Glucose utilization during interictal intervals in an epilepsy model induced by pilocarpine: A qualitative study

Purpose: Interictal intervals in pilocarpine-induced chronic epilepsy are characterized by apparent normal electrographic activity and longer sleep periods or drowsiness or both. Sparse information exists concerning the neural network activity during these seizure-free intervals. in our research, all [C-14]2-deoxy-D-glucose (2DG) autoradiographic technique was used to investigate interictal changes in the metabolism of the epileptic rat brain.Methods: Epileptic mts were monitored by video-EEG for similar to 120 days, with [C-14]2DG injected after a seizure-free interval of greater than or equal to 24 h.Results: Autoradiographic analysis revealed an increase in glucose utilization by several brain regions; the most consistent increase was found in the lateral posterior thalamic nucleus and prerectal region.Conclusions: These findings suggest that the lateral posterior thalamic nucleus and the prerectal region may be involved in cerebral circuits inhibiting epileptic activity during interictal intervals.UNIFESP, EPM, BR-04023900 São Paulo, BrazilUNIFESP, EPM, BR-04023900 São Paulo, BrazilWeb of Scienc