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Academic literature on the topic 'Corpus Callosum, physiopathology'
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Journal articles on the topic "Corpus Callosum, physiopathology"
Cyprien, Fabienne, Claudine Berr, Jerome J. Maller, Chantal Meslin, Mélissa Gentreau, Thibault Mura, Audrey Gabelle, et al. "Late-life cynical hostility is associated with white matter alterations and the risk of Alzheimer's disease." Psychological Medicine, April 14, 2021, 1–10. http://dx.doi.org/10.1017/s0033291721000416.
Full textDissertations / Theses on the topic "Corpus Callosum, physiopathology"
Mauriac, Stéphanie. "Bases moléculaires de la physiopathologie de la voie de signalisation de la polarité planaire dépendante des protéines Gi." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0080.
Full textHearing loss is the most common sensory disorder, affecting 40% of people over 65 years old, leading for these patients, to the deterioration of their quality of life and to their social isolation. The main causes are aging or exposure to noise. However, many genes can also cause deafness. Among these deafnesses, the Chudley McCullough Syndrome (CMCS) is a rare disease characterized by severe and early deafness associated with brain abnormalities (Chudley et al., 1997). Recently, mutations in the GPSM2 (G protein signaling modulator 2) gene were found to be causative of this pathology, but the molecular basis were unknown (Walsh et al., 2010). Using a murine model of this pathology, we identified the molecular basis of this pathology as well as a new molecular function for Gpsm2 on the modulation of actin cytoskeleton. The disruption of this function leads to defect of the maturation of auditory hair cells and the reduction of the outgrowth of young neurons which may explain the deafness and the hypoplasia of the corpus callosum described in these patients (Mauriac et al., 2017). In addition, we identified partners of Gpsm2, Gαi proteins, as essential for auditory function (Beer-Hammer et al., 2018). At the molecular level, we have discovered a new interaction of Gpsm2 with a protein essential for the maturation of auditory cells and involved in Usher type deafness, Whirlin.Therefore, our study clarified the etiology of CMCS and show that the complexity and multisyndromic aspect of this pathology is due to the multifunctional role of the complex Gpsm2/G⍺i not only on tubulin dynamics in proliferating cells and post-mitotic cells (Ezan et al., 2013), but also on actin dynamics (Mauriac et al., 2017)
Cavallin, Mara. "Physiopathologie moléculaire et cellulaire des anomalies du développement du cortex cérébral : le syndrome d'Aicardi WDR81 mutations cause extreme microcephaly and impair mitotic progression in human fibroblasts and Drosophila neural stem cells TLE1, a key player in neurogenesis, a new candidate gene for autosomal recessive postnatal microcephaly Mutations in TBR1 gene leads to cortical malformations and intellectual disability Aicardi syndrome: Exome, genome and RNA-sequencing of a large cohort of 19 patients failed to detect the genetic cause Recurrent RTTN mutation leading to severe microcephaly, polymicrogyria and growth restriction Recurrent KIF2A mutations are responsible for classic lissencephaly Recurrent KIF5C mutation leading to frontal pachygyria without microcephaly Rare ACTG1 variants in fetal microlissencephaly De novo TUBB2B mutation causes fetal akinesia deformation sequence with microlissencephaly: An unusual presentation of tubulinopathy A novel recurrent LIS1 splice site mutation in classic lissencephaly Further refinement of COL4A1 and COL4A2 related cortical malformations Prenatal and postnatal presentations of corpus callosum agenesis with polymicrogyria caused By EGP5 mutation Delineating FOXG1 syndrome from congenital microcephaly to hyperkinetic encephalopathy Delineating FOXG1 syndrome: From congenital microcephaly to hyperkinetic encephalopathy." Thesis, Sorbonne Paris Cité, 2019. https://wo.app.u-paris.fr/cgi-bin/WebObjects/TheseWeb.woa/wa/show?t=2213&f=18201.
Full textMalformations of cortical development (MCD) are a major cause of intellectual disability and drug-resistant epilepsy. Next Generation Sequencing (NGS) has considerably improved the identification of the molecular basis of non-syndromic MCD. However, certain forms, including complex MCD, remain unexplained. My PhD project aimed to improve the understanding of complex MCD using two disorders: Microlissencephaly (MLIS) and Aicardi Syndrome (AIC), the latter associating brain and eye malformations and only reported in girls. Trio Whole Exome Sequencing (WES) performed in 16 MLIS families allowed me to identify and functionally characterize a new MLIS gene, WDR81, in which mutations lead to cell cycle alteration. Moreover, using the same strategy, I was able to identify a pathogenic homozygous variant in TLE1 in a patient from consanguineous family with a postnatal microcephaly, suggestive of a FOXG1-like presentation. Interestingly, TLE1 is a major partner of FOXG1, a gene involved in maintaining the balance between progenitor proliferation and differentiation. In parallel, my work allowed me to redefine the phenotypic spectrum associated with RTTN, EPG5, COL4A1 and COL4A2, TBR1, KIF5C, KIF2A and FOXG1. The second part of my PhD program was aimed at identifying the genetic basis of AIC in an international cohort of 19 patients. After excluding a skewed X chromosome inactivation and the presence of chromosomal rearrangements, I performed WES in trios. The analysis of the data from WES did not allow me to identify any recurrent variants. I therefore tested a new approach combining Whole Genome Sequencing (WGS) and RNA-Sequencing (RNA-Seq) on fibroblast cells. I identified a number of deregulated transcripts implicated in brain and eye development. I compared the results of this analysis with the WGS analysis in order to find variants in these candidate genes. In conclusion, these studies have improved the knowledge of the molecular basis of complex MCD, such as TLE1 in postnatal microcephaly, and revealed the pathogenic mechanisms such as WDR81 in cell cycle progression and EPG5 in endosomes and autophagy. My work has also generated a collection of NGS data (WES, WGS and RNA-Seq) that will be shared in an international consortium to develop new analytical strategies, in particular for the non-coding DNA regions. This novel strategy provides opportunities to improve understanding of the cellular mechanisms involved in brain and eye development
Books on the topic "Corpus Callosum, physiopathology"
(Editor), Maryse Lassone, and Malcolm A. Jeeves (Editor), eds. Callosal Agenesis: A Natural Split Brain (Advances in Behavioral Biology). Springer, 1994.
Find full textMaryse, Lassonde, Jeeves Malcolm A. 1926-, and International Brain Research Organization, eds. Callosal agenesis: A natural split brain? New York: Plenum Press, 1994.
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