نتایج جستجو برای: cerebral astrocytoma
تعداد نتایج: 187104 فیلتر نتایج به سال:
Case studies of extremely gifted individuals often reveal unique patterns of intellectual precocity and associated abnormalities in development and behavior. This article begins with a review of current neurophysiological and neuroanatomical findings related to the gifted population. The bulk of scientific inquiries provide evidence of unique patterns of right prefrontal cortex and inferior fro...
The present study examined whether abnormal cerebral control was evident in the lip movements of adult stutterers (AS) compared to non-stutterers (ANS), as demonstrated during speech and non-speech tasks. Electromyographic (EMG) activity during production of words with initial /f/ and /p/ phonemes, single-sentence production and lip pursing were measured. Differences between AS and ANS were evi...
Transitional neuronal layers are a hallmark of the prenatal and neonatal brain yet their contribution to the development of higher functions is not clear. Evidence accumulated over the last 3 decades shows that early connectivity and functional activity start in a transitional layer called the subplate zone (SPZ). The SPZ is host to a heterogeneous population of neurons and its evolutionary com...
Much recent research has addressed the question of cerebral asymmetry in the perception of American Sign Language (Ameslan). The question has, of course, been prompted by the traditional characterization of the left hemisphere as specialized for language and the right for visuospatial or nonlinguistic functions. Since Ameslan carries a complexity and regularity analogous to that of spoken langu...
• Knowledge of the physiology and pathophysiology of cerebral blood flow (CBF) is essential to the proper treatment of patients with major intracranial disease. Yet much of the existing information is fragmented and incoherent (1-4); certainly many problems remain unsolved. This review has attempted to organize the existing knowledge about CBF into a reasonably consistent framework of facts and...
High-grade astrocytomas are invariably deadly and minimally responsive to therapy. Pten is frequently mutated in aggressive astrocytoma but not in low-grade astrocytoma. However, the Pten astrocytoma suppression mechanisms are unknown. Here we introduced conditional null alleles of Pten (Pten(loxp/loxp)) into a genetically engineered mouse astrocytoma model [TgG(deltaZ)T121] in which the pRb fa...
Ependymomas are common spinal lesions, with the vast majority arising in an intramedullary location. Several cases have been described in the literature of ependymomas in an intradural, extramedullary location. The authors present a case of a 56-year-old female who presented with several weeks of lower back pain and weakness. MRI revealed an intradural, extramedullary enhancing mass at L1-L2. T...
BACKGROUND The paper presents the results of the use of phytotherapy in a 33-year-old woman who, after finishing the oncological treatment of diffuse astrocytoma, had tumour progression. MATERIAL AND METHODS Phytotherapy was introduced after the tumour had progressed. It consisted of 4 types of herbal medicine which the subject was taking in form of tea once a day at regular intervals. The pa...
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