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Academic literature on the topic 'Neurogenèse humaine'
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Journal articles on the topic "Neurogenèse humaine"
Winner, B., D. Lie, E. Rockenstein, R. Aigner, L. Aigner, E. Masliah, G. Kuhn, and J. Winkler. "Humanes Wildtyp alpha-Synuklein vermindert die adulte Neurogenese." Aktuelle Neurologie 32, S 1 (March 30, 2005). http://dx.doi.org/10.1055/s-2005-866693.
Full textWinner, B., D. C. Lie, E. Rockenstein, R. Aigner, L. Aigner, E. Masliah, G. Kuhn, and J. Winkler. "Humanes Wild-typ alpha-Synuclein vermindert die adulte Neurogenese." Aktuelle Neurologie 32, S 4 (October 26, 2005). http://dx.doi.org/10.1055/s-2005-919316.
Full textWegner, F., SC Schwarz, E. Frick, J. Wieackr, A. Storch, and J. Schwarz. "Elektrophysiologische Analyse der Neurogenese humaner Neurone des Mittelhirns aus neuralen Stammzellen." Aktuelle Neurologie 32, S 1 (March 30, 2005). http://dx.doi.org/10.1055/s-2005-866623.
Full textWegner, F., SC Schwarz, E. Frick, J. Wieacker, A. Storch, and J. Schwarz. "Elektrophysiologische Analyse der Neurogenese humaner Neurone des Mittelhirns aus neuralen Stammzellen." Aktuelle Neurologie 31, S 1 (2004). http://dx.doi.org/10.1055/s-2004-833032.
Full textBeck, C., J. Schneidereit, C. Hendrich, F. Jakob, N. Schütze, J. Eulert, and U. Nöth. "Neurogene Differenzierung humaner mesenchymaler Stammzellen aus dem Knochenmark und trabekulären Knochen." Zeitschrift für Orthopädie und ihre Grenzgebiete 141, S 1 (November 13, 2003). http://dx.doi.org/10.1055/s-2003-821887.
Full textCandau, Joel. "Altricialité." Anthropen, 2018. http://dx.doi.org/10.17184/eac.anthropen.087.
Full textDissertations / Theses on the topic "Neurogenèse humaine"
Poittevin, Marine. "Implication des processus inflammatoires et de la microangiopathie diabétique dans la sévérité de l'infarctus cérébral et le retard de réparation dans des modèles d'ischémie cérébrale chez la souris." Paris 7, 2013. http://www.theses.fr/2013PA077082.
Full textCerebral ischemia is the leading cause of acquired disability in adults and the second cause of death m developed countries. Currently, the only effective treatment is thrombolysis with rt-PA administration restricted to less than 5% of patients. The development of new therapies is therefore a crucial issue. The inflammatory process after cerebral ischemia is essential for clearance of injured brain tissue but also contributes to the worsening of brain damage and neurological deficit. In addition, inflammatory cytokines released after cerebral ischemia contribute to promote or block neurogenesis, a process essential for brain repair. The first part of this research has focused on the modulation of the inflammation to keep the beneficial component and decrease the deleterious one by the mean of an immunomodulatory drug, Glatiramer Acétate or Copaxone®. This drug was injected into two munne modeb of cerebral ischemia, which are permanent and transient Middle Cerebral Artery occlusion (pMCAo and tMCAO). Glatiramer Acetate did not diminish the infarct volume nor improve the neurological deficit despite an increase of neurogenesis in pMCAo model and reduced microglial pro-inflammatory cytokines in tMCAO. In parallel a follow-up in vivo study of microglial inflammation in stroke induced by pMCAo was conducted in MRI, particularly mteresting for the non-invasively validation of new anti-inflammatory therapeutics. As we obtained limited results in our study models, we decided to include diabetes, a strong risk factor for incidence and severity of cerebral ischemia. Diabetes is know in peripheral organs to induce an inflammatory and vascular response. It results in microangiopathy whose role in ischemic brain injury is poorly understood. The second part of this research has therefore focused on the characterization of this microangiopathy in a type I diabetic mouse model by injection of streptozotocin and the consequences of this microangiopathy in the severity of cerebral infarction. Our work has shown that after cerebral ischemia in diabetic mice, the inflammatory response was more intense and angiogenesis, the vascular repair process, was delayed. This allows targeting new therapeutic strategies following cerebral ischemia in the diabetic field
Scordel, Chloé. "Identification des déterminants viraux et mécanismes moléculaires impliqués dans l’interférence du virus de la maladie de Borna avec la neurogenèse humaine." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA114849.
Full textBorna disease virus (BDV) is a persistent neurotropic virus causing neurobehavioral disorders in animals and possibly humans. Using human neural progenitor cells, it had been shown, before my arrival in the laboratory, that BDV induces an alteration in human neurogenesis. Here, we aimed at identifying the viral determinants involved in BDV-induced impairment of neurogenesis and at characterizing the underlying molecular mechanisms. We demonstrated that the phosphoprotein (P) and the nucleoprotein (N), but not the X protein, reduce neurogenesis. Focusing on the role of P, we evidenced an impairment of GABAergic neurogenesis. Then, seeking for the molecular mechanisms responsible for P-induced inhibition of neurogenesis, we showed that it induces a decrease in the expression of cellular factors involved in either neuronal specification (ApoE, Noggin) or maturation (SCG10/Stathmin, TH). Thus, in this study, we demonstrated for the first time that a viral protein is capable of inhibiting GABAergic neurogenesis, a process that is dysregulated in some psychiatric diseases. Our results improve our understanding of the pathogenesis of this persistent neurotropic virus and of its possible role in psychiatric disorders
Rainer, Quentin. "Effets comportementaux et neurogéniques des antidépresseurs dans un nouveau modèle d'anxiété/dépression chez la Souris adulte." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00672775.
Full textWimmer, Ryszard. "Migration of neural stem cells during human neocortical development." Electronic Thesis or Diss., Université Paris sciences et lettres, 2024. http://www.theses.fr/2024UPSLS016.
Full textIn gyrencephalic species, and in particular in humans, the strong size increase of the neocortex is largely supported by an expanded neurogenic niche, the outer subventricular zone (oSVZ). This is largely due to the amplification of a neural stem cell population, the basal radial glial cells (bRGs, also known as oRGs). bRG cells colonize the oSVZ through an acto-myosin dependent movement called mitotic somal translocation (MST). The exact molecular mechanism of MST, whether the microtubule cytoskeleton also controls other steps of bRG cell translocation, and the contribution of these movements to bRG cell dissemination into the human developing neocortex are however unknown. Here, using live imaging of gestational week 14-21 human fetal tissue and cerebral organoids, we identify a two-step mode of translocation for bRG cells. On top MST, bRG cells undergo a microtubule-dependent movement during interphase, that we call interphasic somal translocation (IST). IST is slower than MST and controlled by the LINC complex that recruits the dynein molecular motor and its activator LIS1 to the nuclear envelope for transport. Consequently, IST is affected in LIS1 patient derived organoids. We furthermore show that MST occurs during prometaphase and is therefore a mitotic spindle translocation event. MST is controlled by the mitotic cell rounding molecular pathway, that increases the cell cortex stiffness to drive translocation. Both IST and MST are bidirectional with a net basal movement of 0,57 mm per month of human fetal gestation. We show that 85% of this movement is dependent on IST, that is both more polarized and more processive than MST. Finally, we demonstrate that IST and MST are conserved in bRG-related glioblastoma cells and occur through the same molecular pathways. Overall, our work identifies how bRG cells colonize the human fetal cortex, and how these mechanisms can be linked to pathological conditions
Gouazé, Alexandra. "Implication de la plasticité cérébrale hypothalamique dans la régulation de l'homéostasie énergétique chez la souris : effet d'un régime gras." Phd thesis, Université de Bourgogne, 2012. http://tel.archives-ouvertes.fr/tel-00841824.
Full textHouben, Sarah. "Cinquante nuances de tau :de la neurogenèse à la pathogenèse." Doctoral thesis, Universite Libre de Bruxelles, 2020. https://dipot.ulb.ac.be/dspace/bitstream/2013/314226/4/tdm.pdf.
Full textDoctorat en Sciences biomédicales et pharmaceutiques (Médecine)
info:eu-repo/semantics/nonPublished
Royo, Julie. "Performances cognitives et neurogenèse au cours du vieillissement chez un primate non-humain." Thesis, Paris, Muséum national d'histoire naturelle, 2020. http://www.theses.fr/2020MNHN0001.
Full textNeurogenesis is the ability of the adult brain to build new neurons. This process induces structural and functional changes in the brain that can reduce cognitive decline during aging. This neuroplasticity exists throughout life but it gradually decreases with aging. In this study, we characterized the evolution of cognitive functions and neurogenesis during aging in the grey mouse lemur (Microcebus murinus) that shares morphological, behavioural and physiological changes with aged humans. We observed that some aged animals presented a specific deficit in learning and memory whereas others had cognitive performances equivalent or better than young animals. It might be due to the neurogenesis process that would preserve cognitive functions during aging. Indeed, in the subventricular zone, the balance between neurons and glial cells would be in favour of neurogenesis in the dorsal part while oligodendrogenesis would be favoured in the horn. Stimulation of neurogenesis could help replace neurons lost due to injury or aging. Among the possible strategies to stimulate neurogenesis, food and physical activity seem pertinent. During this thesis project, we studied, in particular, the impact of n-3 polyunsaturated fatty acid supplementation and the combination of caloric restriction and physical activity in adulthood. These interventions induced an improvement of cognitive functions associated with an increase in the number of new neurons. These different approaches constitute a promising strategy without drugs against cognitive decline during aging by participating in brain plasticity
Charbord, Jérémie. "Criblage à haut débit d'inhibiteurs du répresseur de transcription REST dans des progénies neurales issues de cellules souches embryonnaires humaines." Thesis, Evry-Val d'Essonne, 2012. http://www.theses.fr/2012EVRY0004.
Full textOur goal was to identify pharmacological inhibitors of REST that would be able to increase the expression of a set of neuronal gene targets of REST (RE1 genes) in human neural stem cells (NSCS) derived from human embryonic stem cells (HESC). These compounds would at first provide a new type of tool to better understand REST action on proliferation and differentiation in normal or pathological NSCS and could have therapeutical properties for diseases in which an over-activation of REST is implicated in or influences cellular pathology such as huntington’s disease or some brain tumors. Identification of REST inhibitors was performed using the powerful technology of high throughput screening (HTS). Success of this method was based on the set up of a robust functional cell assay of REST activity in NSCS. A reporter system of this activity has been constructed using an expression cassette of the renilla luciferase placed under control of a strong constitutive promoter. Several RE1 sites have been inserted upstream of this cassette to make the expression of Luciferase dependent on REST activity. We have isolated x5050 compound, a benzimidazole which leads to upregulation of RE1 genes as shown by transcriptomic studies. x5050 modified neither rest transcription nor rest fixation on a labeled nucleotidic RE1 sequence. On the contrary, x5050 treatment induced the decrease in rest protein level, probably by modulating REST degradation by the ubiquitin-proteasome system
Bayer, Ronny. "Veränderungen der adulten Neurogenese im Hippocampus von Drogenabhängigen." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-163780.
Full textWölfle, Martina. "Comparative analyses of the neurogenic capacity of human neuroprogenitor populations derived from neural and mesodermal tissue." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:289-vts-63715.
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