نتایج جستجو برای: lissencephaly

تعداد نتایج: 686  

Journal: :Pediatric Neurology Briefs 1991

Journal: :Russkij žurnal detskoj nevrologii 2022

Malformations of the cerebral cortex are often causes epilepsy. The latest changes in their classification summarized. description lissencephaly and Miller–Dicker syndrome, pachygyria, polymicrogyria, hemimegaloencephaly, holoprosencephaly, schizencephaly, gray matter heterotopia is given. features epilepsy these diseases described. Magnetic resonance imaging scans for focal cortical dysplasia,...

2013
Shiori Toba Yasuhisa Tamura Kanako Kumamoto Masami Yamada Keizo Takao Satoko Hattori Tsuyoshi Miyakawa Yosky Kataoka Mitsuyoshi Azuma Kiyoshi Hayasaka Masano Amamoto Keiko Tominaga Anthony Wynshaw-Boris Hideki Wanibuchi Yuichiro Oka Makoto Sato Mitsuhiro Kato Shinji Hirotsune

Toward a therapeutic intervention of lissencephaly, we applied a novel calpain inhibitor, SNJ1945. Peri-natal or post-natal treatment with SNJ1945 rescued defective neuronal migration in Lis1⁺/⁻ mice, impaired behavioral performance and improvement of ¹⁸F-FDG uptake. Furthermore, SNJ1945 improved the neural circuit formation and retrograde transport of NFG in Lis1⁺/⁻ mice. Thus, SNJ1945 is a po...

Journal: :AJNR. American journal of neuroradiology 2005
Nancy Rollins Tony Reyes Jon Chia

Lissencephaly is a rare brain malformation characterized histologically by arrested neuronal migration such that the brain resembles that of a fetus before 23-24 weeks gestation. We studied a neonate with lissencephaly by using diffusion tensor imaging and suggest the dysplastic densely cellular layer IV is visible as a band of anisotropic diffusion. Fiber tracking showed lack of connectivity b...

2014

Dandy-Walker malformation is characterised by agenesis or hypoplasia of the cerebellar vermis, cystic dilatation of the fourth ventricle, and enlargement of the posterior fossa. Approximately 70-90% of patients have hydrocephalus. Lissencephaly is characterised by absence (agyria) or incomplete development (pachygyria) of the gyri of the cerebral cortex, causing the brain's surface to appear un...

Journal: :Epilepsy research 2006
Mitsuhiro Kato

Symptomatic West syndrome has heterogeneous backgrounds. Recently, two novel genes, ARX and CDKL5, have been found to be responsible for cryptogenic West syndrome or infantile spasms. Both are located in the human chromosome Xp22 region and are mainly expressed and play roles in fetal brain. Moreover, several genes responsible for brain malformations including lissencephaly, which is frequently...

Journal: :iranian journal of neonatology 0
alireza jashni motlagh assistant professor, school of medical sciences, alborz university of medical sciences, karaj, iran yadollah zahedpasha professor, school of medical sciences, babol university of medical sciences, babol, iran mousa ahmadpourkacho associate professor, school of medical sciences, babol university of medical sciences, babol, iran

background: x-linked lissencephaly with ambiguous genitalia (xlag) is a recently described genetic disorder, in which patients present with lissencephaly, agenesis of the corpus callosum, refractory epilepsy of neonatal onset, acquired microcephaly, and male genotype with ambiguous genitalia. xlag is responsible for a severe neurological disorder of neonatal onset in boys. a gyration defect con...

Journal: :American journal of human genetics 2003
Carlos Cardoso Richard J Leventer Heather L Ward Kazuhito Toyo-Oka June Chung Alyssa Gross Christa L Martin Judith Allanson Daniela T Pilz Ann H Olney Osvaldo M Mutchinick Shinji Hirotsune Anthony Wynshaw-Boris William B Dobyns David H Ledbetter

Deletions of 17p13.3, including the LIS1 gene, result in the brain malformation lissencephaly, which is characterized by reduced gyration and cortical thickening; however, the phenotype can vary from isolated lissencephaly sequence (ILS) to Miller-Dieker syndrome (MDS). At the clinical level, these two phenotypes can be differentiated by the presence of significant dysmorphic facial features an...

Journal: :Journal of medical genetics 1997
V des Portes J M Pinard D Smadja J Motte O Boespflüg-Tanguy M L Moutard I Desguerre P Billuart A Carrie T Bienvenu M C Vinet L Bachner C Beldjord O Dulac A Kahn G Ponsot J Chelly

X linked subcortical laminar heterotopia and lissencephaly syndrome (XSCLH/ LIS) is an intriguing disorder of cortical development, which causes classical lissencephaly with severe mental retardation and epilepsy in hemizygous males, and subcortical laminar heterotopia (SCLH) associated with milder mental retardation and epilepsy in heterozygous females. Here we report an exclusion mapping stud...

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