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Academic literature on the topic 'Maladie d’Alzheimer – Aspect moléculaire'
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Journal articles on the topic "Maladie d’Alzheimer – Aspect moléculaire"
Octave, Jean-Noël, and Nathalie Pierrot. "La maladie d’Alzheimer : aspects cellulaires et moléculaires." Bulletin de l'Académie Nationale de Médecine 192, no. 2 (February 2008): 323–32. http://dx.doi.org/10.1016/s0001-4079(19)32833-x.
Full textPetyt, G., V. Deramecourt, P. Lenfant, and C. Hossein-Foucher. "L’imagerie moléculaire de la maladie d’Alzheimer." Pratique Neurologique - FMC 3, no. 4 (December 2012): 366–68. http://dx.doi.org/10.1016/j.praneu.2012.09.003.
Full textVergote, Jackie, Johnny Vercouillie, Moussa Diarra, Caroline Prunier, Vincent Camus, Caroline Hommet, Jean Louis Baulieu, and Denis Guilloteau. "Avancée de l’imagerie moléculaire dans la maladie d’Alzheimer." Médecine Nucléaire 31, no. 9 (September 2007): 486–89. http://dx.doi.org/10.1016/j.mednuc.2007.07.014.
Full textDuyckaerts, C., M. Panchal, B. Delatour, and M. C. Potier. "Neuropathologie morphologique et moléculaire de la maladie d’Alzheimer." Annales Pharmaceutiques Françaises 67, no. 2 (March 2009): 127–35. http://dx.doi.org/10.1016/j.pharma.2009.01.001.
Full textSemah, F. "L’imagerie moléculaire de la maladie d’Alzheimer et des maladies apparentées." Médecine Nucléaire 42, no. 3 (May 2018): 190–93. http://dx.doi.org/10.1016/j.mednuc.2018.03.132.
Full textCabrejo, L., D. Hannequin, D. Campion, N. Sergeant, J. Holton, J. J. Hauw, and A. Laquerriere. "Angiopathie amyloïde sévère & maladie d’Alzheimer autosomique dominante : étude phénotypique et moléculaire d’une famille." Revue Neurologique 161, no. 3 (March 2005): 339. http://dx.doi.org/10.1016/s0035-3787(05)85052-0.
Full textAchouri-Rassas, Afef, Nadia Ben Ali, Saloua Fray, Mariem Kchaou, Slim Echebi, Taieb Messaoud, and Samir Belal. "Étude moléculaire des polymorphismes dans des gènes de l’ACE et de l’APOE dans la maladie d’Alzheimer chez une population tunisienne." Revue Neurologique 171 (April 2015): A89. http://dx.doi.org/10.1016/j.neurol.2015.01.200.
Full textDissertations / Theses on the topic "Maladie d’Alzheimer – Aspect moléculaire"
Brault, Marie Ève. "Développement d'un essai in vivo pour mesurer l'activité de BACE et son implication dans la maladie d'Alzheimer." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24433/24433.pdf.
Full textLeclerc-Blain, Jessica. "Étude du rôle putatif de la neural-plakophilin-related armadillo protein dans la signalisation cellulaire de la maladie d'alzheimer." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27598/27598.pdf.
Full textLessard, Christian. "Étude sur la régulation et de la voie moléculaire de la Béta-sécrétase et de préséniline." Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21906.
Full textGuilloreau, Luc. "Le complexe CuII-Amyloïde-bêta lié à la Maladie d’Alzheimer : étude structurale, thermodynamique et réactivité." Toulouse 3, 2006. http://www.theses.fr/2006TOU30263.
Full textA peptide called amyloid-beta (Aβ) seems to play a key role in Alzheimer's disease (AD). Aβ is present in healthy humans in a soluble form, but forms aggregates in AD (amyloid plaques). According to the amyloid cascade hypothesis, these aggregates are toxic to neurons and hence lead to their degeneration and the development of AD. The degeneration occurs via the production of reactive oxygen species (ROS). Copper ions play an important role in these processes, because they can bind to Aβ and they are highly accumulated in the plaques. Moreover, copper ions influence the aggregation of amyloid-beta and are supposed to be involved in the ROS production. Our studies focused on the soluble complex CuII-Aβ. They revealed new insights : (i) Isothermal Titration Calorimetry (ITC) showed two CuII binding sites, with an apparent Kd of 10-7 M and 10-5 M, respectively. (ii) It is know that the three histidine (position 6,13,14) are involved in the complex. EPR showed a 3N/1O environment and 1H-NMR suggests that the Asp in position 1 is involved in the ligation to CuII. So, we propose the carboxylate of the Asp1 as the fourth ligand of copper. (iii) We have shown than CuII-Aβ peptide could generate hydroxyl radicals HO• in the presence of ascorbate. This production has been linked to the redox potentials of complexes. (iv) The influence of copper on the aggregation (kinetic, oligomers formation, type of aggregates) was also studied
Proulx, Marie-Claude. "Identification de facteurs régulant le complexe γ-sécrétase dans le contexte de la maladie d'alzheimer." Master's thesis, Université Laval, 2007. http://hdl.handle.net/20.500.11794/19313.
Full textLabbé, Jean-François. "Études biophysiques d'un peptide amyloïde et de ses interactions avec des membranes modèles." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27344/27344.pdf.
Full textGrimm, Amandine. "Mitochondria, neurosteroids and biological rhythms : implications in health and disease states." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAJ002/document.
Full textMitochondria play a paramount role in cell survival and death because they are orchestrating both energy metabolism and apoptotic pathways, while impaired mitochondrial function leads inevitably to disease, especially neurodegeneration. The purpose of the present thesis was therefore to deepen our understanding of the regulation of mitochondrial function, with a focus on mitochondrial bioenergetics and dynamics. Our key findings were that: i) neurosteroids represent promising molecules which are able to increase mitochondrial bioenergetics via enhancement of mitochondrial respiration in healthy condition; ii) neurosteroids are able to alleviate Alzheimer’s disease-related bioenergetic deficits; iii) the circadian clock is able to regulate mitochondrial bioenergetics and dynamics, and vice versa. Collectively, our results contribute to a better understanding of how mitochondria function, and could have multiple implications with regard to the regulation of metabolic homeostasis in health and disease states associated with mitochondrial impairments and/or circadian disruption
Lejri, Imane. "Characterization of novel mitochondrial modulators for the development of neuroprotective strategies." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAJ019/document.
Full textThis PhD work allowed the characterization of two families of mitochondrial modulators: novel analogues of allopregnanolone, and novel synthetic ligands of translocator protein (TSPO) implicated in the neurosteroidogenesis. Our key findings showed that: i) in vitro, BR297, an analog of allopregnanolone alleviated Alzheimer’s disease-related bioenergetics deficits and exhibited protective effects against oxidative stress by reducing reactive oxygen species and decreasing death in a cellular model of Alzheimer’s disease,with a higher effectiveness compared to allopregnanolone; ii) in vivo, firstly the protective effect of BR297 was confirmed in the transgenic Tg2576 mouse model by alleviating the mitochondrial deficits, secondly BR297and another analog BR351 demonstrated neuroprotective effects on age-related mitochondrial dysfunctions via enhancement of cellular bioenergetics and complex activities; and iii) in vitro, TSPO ligands represent promising molecules which are able to increase cellular bioenergetics with similar/ or higher effects compared to different reference molecules in a cellular model of Alzheimer’s disease
Wendt, Guillaume. "Assessment of neuroprotective effects of gamma-hydroxybutyrate and neurosteroids on cellular models of Alzheimer’s disease." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ120/document.
Full textThis PhD work showed that GHB and neurosteroids efficiently protect against nerve cell death caused by Alzheimer's disease etiological factors including amyloid precursor protein overexpression and oxidative stress. Interestingly, we identified an additive action of GHB and allopregnanolone that may result from the combination of partial stimulations of anti-apoptotic protein expression induced by both compounds. GHB protective effect was blocked by aromatase inhibitor, suggesting that GHB may also induce neuroprotection via the activation of neurosteroidogenesis. Finally, we have used a yeast-based MMP activity assay to check whether GHB and neurosteroids regulate MMP-2 and MMP-9 activities which control Aβ peptide degradation. We cannot yet conclude from our preliminary results but their improvement and combination with RT-qPCR analyzes will help to determine the modulatory action of GHB and neurosteroids on MMP activity and/or expression. Together, our data suggest that GHB and neurosteroids may be used to develop combined neuroprotective strategies against neuronal loss in AD
Cam, Morgane. "Contribution à l'étude de la maladie d'Alzheimer : induction de la production d'amyloïdes beta-42/43 par le fipronil, un pesticide de la famille des phenylpyrazoles : effets cellulaires des Leucettines, une famille d'inhibiteurs des kinases DYRKs/CLKs." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAJ060/document.
Full textIn the screening of ‘human chemical exposome’ compounds, triazine herbicides and pyrazole insecticides, especially fipronil, have shown their ability to induce β-amyloid -42 and -43 peptide production. As they tend to aggregate into oligomers then into plaques, they are a characteristic of Alzheimer's disease (AD). This discovery informs about the potential danger of these products and provides tools to decipher the mechanisms leading to the alteration of the ratio of the different forms of amyloid.Moreover, dysregulation of DYRK1A, involved in trisomy 21, also affects these amyloid peptides, as well as the Tau protein which is then hyperphosphorylated and tends to aggregate into neurofibillar tangles, another characteristic of AD. This same effect on Tau is observed with CDK5 in AD, stroke and brain injury. The development of specific pharmacological inhibitors of these two kinases is therefore an issue for ManRos Therapeutics
Books on the topic "Maladie d’Alzheimer – Aspect moléculaire"
1936-, Miyatake Tadashi, Selkoe Dennis J, and Ihara Yasuo, eds. Molecular biology and genetics of Alzheimer's disease: Proceedings of the International Symposium on Dementia--Molecular Biology and Genetics of Alzheimer's Disease, Niigata, Japan, 11-14 November 1989. Amsterdam: Excerpta Medica, 1990.
Find full textKen'ichi, Kitani, Goto S, and Aoba A, eds. Pharmacological intervention in aging and age-associated disorders: Proceedings of the Sixth Congress of the International Association of Biomedical Gerontology. New York: New York Academy of Sciences, 1996.
Find full textS, Harper Peter, and Perutz Max F, eds. Glutamine repeats and neurodegenerative diseases: Molecular aspects. Oxford: Oxford University Press, 2001.
Find full text(Editor), Peter S. Harper, and Max Perutz (Editor), eds. Glutamine Repeats and Neurodegenerative Diseases: Molecular Aspects. Oxford University Press, USA, 2001.
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