RESUMEN
Adipose tissue is a dynamic organ with different effects on the body. Many of these effects are mediated by leptin, a hormone strongly involved in regulation of feeding and energy metabolism. It has an important role as a mediator of neuronal excitatory activity and higher brain functions. The aim of this study was to review the association between leptin and cerebral neuronal function, in particular its anticonvulsant or convulsant effects and the possible therapeutic role for treating epilepsy. For this purpose, the databases Pubmed, Science Direct, Elsevier, ResearchGate and Scielo were searched to identify experimental studies, reviews and systematic review articles, published in English, Spanish or Portuguese. Experimental studies and the presence of leptin receptors in nervous system sites other than the hypothalamus suggest an influence on higher brain functions. Indeed several animal studies have demonstrated a role of these channels in epileptiform activity as both anticonvulsive and convulsive effects have been found. The reason for these discrepancies is unclear but provides clear evidence of a potential role of leptin and leptin therapy in epileptiform activity. The association between leptin and brain function demonstrates the importance of peripheral metabolic hormones on central nervous system and opens a new way for the development of novel therapeutic interventions in diseases like epilepsy. Nevertheless further investigations are important to clarify the dynamics and diverse actions of leptin on excitatory regulation in the brain.
Asunto(s)
Sistema Nervioso Central/metabolismo , Epilepsia/metabolismo , Leptina/metabolismo , Animales , HumanosRESUMEN
Abstract The Alice in Wonderland syndrome is a rare clinical neurological condition, defined by the presence of perception disorders usually interpreted by the affected patient as rare metamorphosing and depersonalization phenomena. Due to its extremely rare occurrence and its surreal and sometimes psychedelic character, the syndrome has been associated with the phenomena experienced by Alice, the character in the classic and world-famous story by Lewis Carroll.
Resumen El Síndrome de Alicia en el País de las Maravillas es una condición clínica neurológica de rara aparición, definida por la aparición de alteraciones en la percepción usualmente interpretadas por el paciente que las experimenta, como fenómenos extraños de metamorfosis y despersonalización. Por su naturaleza altamente inusual y su carácter surreal e incluso en ocasiones psicodélico, se ha relacionado al cuadro con los fenómenos experimentados por el personaje de Alicia, en la clásica y mundialmente reconocida historia de Lewis Carroll.
Asunto(s)
HumanosRESUMEN
RESUMEN Como es cierto sobre muchas ciencias, el conocimiento en medicina solía ser protegido con el máximo secreto, y solo quienes dedicaban sus vidas a sanar podían acceder a él. Hoy, en la era de la información, todos saben, y más importante, todas las personas quieren y buscan tener conocimiento sobre medicina. Es entonces cuando resulta crucial la existencia de científicos dispuestos y capaces de difundir el conocimiento técnico para todas las personas. En este propósito, Oliver Sacks no tenía igual. Con su estilo narrativo único y su contagiosa sonrisa, fue una luz para los pacientes y las personas que, a tientas en la oscuridad, buscaban respuestas y fue un ejemplo para todos en el campo de la neurociencia.
SUMMARY As is true about many sciences, knowledge in medicine used to be kept under the utmost secrecy, private only to those few persons that devoted their lives to healing. Today, however, in the era of information, everybody knows and, more importantly, everybody wants to know about medicine. It is then when the existence of scientists willing and able to divulge technical knowledge for all people becomes crucial. For this purpose there was none other like Oliver Sacks. With his unique tell-tale writing style and his contagious smile, he was a beacon for patients and people stumbling in the dark, looking for answers, and an example for everyone in the field of neuroscience.
RESUMO Como é verdade sobre muitas ciências, o conhecimento na medicina sempre fio muito protegido com muito segredo, e só quem dedicavam suas vidas a curar, podiam ter acesso a ele. Hoje, na era da informação, todos sabemos, e mais importante, todas as pessoas querem e buscam ter conhecimento sobre medicina. Ai então quando resulta crucial a existência de científicos dispostos e capazes de difundir o conhecimento técnico para todas as pessoas. Neste propósito, Oliver Sacks não tinha concorrência. Com seu estilo narrativo único e seu contagioso sorriso, foi uma luz para os pacientes e as pessoas que, estando na escuridão, buscavam respostas e foi um exemplo para todos no campo da neurociência.