نتایج جستجو برای: cortical dysplasia

تعداد نتایج: 133004  

Journal: :Epileptic disorders : international epilepsy journal with videotape 2003
Marina Bentivoglio Laura Tassi Emanuel Pech Catarina Costa Paolo F Fabene Roberto Spreafico

A brief survey of cortical development is presented, focusing on neuronal migration and its alterations. Corticogenesis is achieved through ordered temporospatial steps, via the formation of transient structures, and successive waves of cell proliferation and migration (followed by cell differentiation and maturation), and apoptotic cell death. The appearance of the proliferative ventricular zo...

2003
Marina Bentivoglio Laura Tassi Emanuel Pech Catarina Costa Paolo F Fabene Roberto Spreafico

− A brief survey of cortical development is presented, focusing on neuronal migration and its alterations. Corticogenesis is achieved through ordered temporospatial steps, via the formation of transient structures, and successive waves of cell proliferation and migration (followed by cell differentiation and maturation), and apoptotic cell death. The appearance of the proliferative ventricular ...

Journal: :Journal of child neurology 2008
Israel Alfonso Daniel T Alfonso Andrew E Price John A I Grossman

We report 2 patients with obstetrical brachial plexus palsy, ipsilateral leg weakness, and contralateral motor cortical dysplasia. To our knowledge, this is the first description of such an association. In both cases, the diagnosis of obstetrical brachial plexus palsy was established clinically shortly after birth and later confirmed neurophysiologically. Motor cortex dysplasia was diagnosed by...

Journal: :The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2009
Jai Jai Shiva Shankar Susitna Trina Banerjee Matthew Hogan Karel terBrugge Pierre Lasjaunias Marlise P dos Santos

BACKGROUND Cortical dysplasias are rarely associated with vascular anomalies. They are usually associated with venous anomalies or in few cases with both arterial and venous anomalies. METHODS Twenty-six year old female presented with history of headache showed cortical dysplasia associated with pure arterial dysplasia in the absence of any associated venous anomaly. CONCLUSIONS An abnormal...

Journal: :Brain : a journal of neurology 2015
Laura A Jansen Ghayda M Mirzaa Gisele E Ishak Brian J O'Roak Joseph B Hiatt William H Roden Sonya A Gunter Susan L Christian Sarah Collins Carissa Adams Jean-Baptiste Rivière Judith St-Onge Jeffrey G Ojemann Jay Shendure Robert F Hevner William B Dobyns

Malformations of cortical development containing dysplastic neuronal and glial elements, including hemimegalencephaly and focal cortical dysplasia, are common causes of intractable paediatric epilepsy. In this study we performed multiplex targeted sequencing of 10 genes in the PI3K/AKT pathway on brain tissue from 33 children who underwent surgical resection of dysplastic cortex for the treatme...

Journal: :Seminars in neurology 2015
Peter B Crino

Focal cortical dysplasias are common malformations of cerebral cortical development and are highly associated with medically intractable epilepsy. They have been classified into neuropathological subtypes (type Ia, Ib, IIa, IIb, and III) based on the severity of cytoarchitectural disruption--tangential or radial dispersion, or loss of laminar structure--and the presence of unique cells types su...

2001
M. Ishitobi N. Nakasato M. Munakata T. Inoue S. Takahashi K. Iinuma

Cortical dysplasia is caused by the failure of migration and development of cortical neurons, resulting in misplacement of neurons or absence of cortical lamination. Band heterotopia (BH) is one of the syndromes involving cortical dysplasia, and is characterized by diffuse subcortical heterotopia with a band-like appearance. Recent advances in molecular biology have revealed that BH probably or...

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