Academic literature on the topic 'TEP amyloïde'
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Journal articles on the topic "TEP amyloïde"
Payoux, P., T. Voisin, M. Alonso, S. Peiffer, M. Tafani, J. Delrieu, A. Hitzel, S. Gillette, and B. Vellas. "Métabolisme cérébral et charge amyloïde chez les sujets fragiles : une étude en TEP." Médecine Nucléaire 36, no. 4 (April 2012): 161–62. http://dx.doi.org/10.1016/j.mednuc.2012.02.019.
Full textSantiago-Ribeiro, M. J., E. Beaufils, J. Vercouillie, D. Dufour, V. Camus, K. Mondon, D. Guilloteau, and C. Hommet. "Distribution cérébrale de la charge amyloïde par TEP au 18F-Florbétapir dans l’atrophie corticale postérieure." Médecine Nucléaire 39, no. 3 (May 2015): 210. http://dx.doi.org/10.1016/j.mednuc.2015.03.017.
Full textBund, C., V. Noblet, F. Heitz, F. Blanc, and I. J. Namer. "Interprétation de l’imagerie de la plaque bêta-amyloïde en imagerie TEP/TDM : comment normaliser les intensités ?" Médecine Nucléaire 39, no. 3 (May 2015): 224–25. http://dx.doi.org/10.1016/j.mednuc.2015.03.069.
Full textMeyer, M., P. Zanotti Fregonara, F. Lamare, G. Catheline, C. Helmer, K. Peres, M. Allard, J. F. Dartigues, and P. Fernandez. "Charge amyloïde évaluée par TEP au 18F-flutemetamol et performances cognitives chez le sujet âgé non dément." Médecine Nucléaire 40, no. 3 (May 2016): 177. http://dx.doi.org/10.1016/j.mednuc.2016.03.022.
Full textAdel, D., J. Delrieu, A. S. Brun, A. Hitzel, D. De Verbizier, F. Lamarre, M. Razzouk, S. Gillette, B. Vellas, and P. Payoux. "Impact du choix des régions d’intérêt sur la quantification du SUVr en TEP des traceurs de la plaque amyloïde." Médecine Nucléaire 37, no. 5 (May 2013): 141. http://dx.doi.org/10.1016/j.mednuc.2013.03.024.
Full textBottlaender, M., J. Lagarde, P. Olivieri, M. Tonietto, P. Gervais, C. Comtat, F. Caillé, and M. Sarazin. "Apport de l’imagerie TEP des dépôts tau et amyloïde dans le diagnostic étiologique chez des patients présentant un syndrome amnésique." Médecine Nucléaire 46, no. 2 (March 2022): 53. http://dx.doi.org/10.1016/j.mednuc.2022.01.012.
Full textDeberdt, W., G. Dell’agnello, A. Chevrette, M. Lu, and M. Pontecorvo. "Étude internationale multicentrique randomisée contrôlée de l’impact de l’imagerie TEP amyloïde au florbetapir (18F) sur la prise en charge des patients." Médecine Nucléaire 40, no. 3 (May 2016): 177–78. http://dx.doi.org/10.1016/j.mednuc.2016.03.023.
Full textManca, C., V. Roch, C. Armand, T. Jonveaux, G. Karcher, P. Y. Marie, and A. Verger. "Analyse semi-quantitative de la TEP aux marqueurs de la plaque amyloïde après normalisation spatiale et correction d’atténuation vs analyse visuelle." Médecine Nucléaire 43, no. 2 (March 2019): 220. http://dx.doi.org/10.1016/j.mednuc.2019.01.132.
Full textBalamoutoff, N., and M. J. Santiago Ribeiro. "Imagerie moléculaire de la plaque amyloïde en TEP/TDM par 18F-Florbetapir et intégration des données de suivi neuropsychologique sur 2 ans." Médecine Nucléaire 41, no. 3 (May 2017): 166. http://dx.doi.org/10.1016/j.mednuc.2017.02.073.
Full textSimon, Maryline, Leslie M. Shaw, Kaj Blennow, Katharina Buck, Christina Rabe, Udo Eichenlaub, and Oskar Hansson. "Concordance du test immunologique Elecsys® B-amyloïde (1–42)’Abeta42 du liquide céphalorachidien (LCR), du Tau total (T-TAU) et du phospho-Tau (181P) LCR (PTAU) avec le TEP-amyloïde et leur association avec la progression clinique de la maladie d’Alzheimer." Revue Neurologique 175 (April 2019): S43—S44. http://dx.doi.org/10.1016/j.neurol.2019.01.053.
Full textDissertations / Theses on the topic "TEP amyloïde"
Barbay, Mélanie. "Troubles neurocognitifs légers et majeurs post-AVC : prévalence et contribution de l'amyloïdopathie." Thesis, Amiens, 2021. http://www.theses.fr/2021AMIE0063.
Full textPrevalence of post stroke neurocognitive disorders (PSNCD) is heterogeneous in the literature. Recent work has proposed the harmonization of diagnostic criteria and cognitive assessment procedures. Neuroradiological determinants of PSNCD have been studied, less other indicators as amyloid deposits. The main objectives of this work were: (1) to perform a meta-analysis with systematic review on prevalence and profiles of PSNCD; (2) to study the prevalence and profile of mild and major NCD in a French cohort, including a validated methodology (3) to assess the prevalence of post-stroke amyloid deposits and cognitive outcome according to the post-stroke amyloid status; (4) to clarify the neuroradiological correlates of amyloid and post-stroke cognitive status. The study population was the GRECogVASC cohort [NCT01339195] and the ancillary study IDEA 3 [NCT 02813434]. Study 1 showed that more than half of the patients presented with post-stroke NCD, of whom two-thirds had mild NCD and one-third had major NCD. Study 2 demonstrated that the optimal criterion was the shortened summary score (i.e., averaged performance for action speed, executive functions, and language). Using this criterion, the mean (95% confidence interval) prevalence of poststroke NCD was 49.5% (44.6–54.4), most of which corresponded to mild NCD (39.1%; 95 CI: 34.4–43.9) rather than dementia (10.4%; 95% CI:7.4–13.4). Study 3 showed that amyloid deposits were observed in 13.5% (95 CI: 6.39-20.58) of patients. A positive amyloid status was also associated with earlier cognitive impairment. Study 4 showed that neuroradiological factors associated with amyloid status were the number of dilated spaces (> 10) in the semi-oval center and their presence in the posterior cingulate region. Lobar microbleeds, hemosiderosis and temporal white matter abnormalities were also associated with the positive amyloid status
Gosselin, Thomas. "ANIMAL Antidépresseurs, neuroinflammation et maladie d'alzheimer." Thesis, Tours, 2016. http://www.theses.fr/2016TOUR3305/document.
Full textToday, despite the description of the mechanisms underlying the development of depression and AD (Alzheimer’s disease), no cure exists for these diseases suggesting the involvement of another phenomenon. One of the processes commonly found in these pathologies is neuroinflammation. However, clinical trials undertaken in the AD to reduce neuroinflammation have not led to a significant improvement of symptoms. One reason for this failure could be a bad therapeutic window which would result in the increase of deleterious effects of neuroinflammation. This highlights the lack of understanding of the kinetics of neuroinflammation in AD
Leuma, Yona Rodrigue. "Etude des interactions des dérivés de la Thioflavine T avec les agrégats amyloïdes." Toulouse 3, 2009. http://thesesups.ups-tlse.fr/601/.
Full textThree main categories of PET ligands (ThioflavinT (ThT), styrylbenzene (SB) and aminonaphtyl derivatives) of Alzheimer's disease associated aggregates are currently under investigation for the early diagnostic by this molecular imaging technique. Yet not much is known about the structure/function relationships explaining the nature of the interaction marker/ aggregate and most improvement of binding affinity seemed to arise from random studies. In the course of this PhD work, we have synthesized ThT derivatives and started a rational structure/affinity study. First of all, syntheses of derivatives have been carried out either under microwave irradiation or using lanthanide catalysis. Further functionnalization has been obtained either by the way of reductive alkylation with an array of carbonyl derivatives, or using Suzuki cross coupling. Benzothiazole derivatives were obtained in all cases with good to excellent yields. The transfer of these syntheses to an automatised synthesiser allowing parallel synthesis has been explored. We then prepared and characterized amyloïd fibrils in vitro. Finally, in vitro binding affinities of theses derivatives to different amyloïd aggregates have been determined by Chemical Physics techniques. This enabled us to propose some important feature regarding the marker/Amyloid beta fibrils interaction. This work now allows us to propose efficient alternative methods to obtain such PET radioligands, this gives an efficient access to a broad array of derivatives of this family and to their later functionnalization. One can also propose some hypotheses regarding the molecular design of binding affinity of this family of ligand to amyloïd fibrils. This study will be pursued in order to synthesize radioligands with better binding affinity and specificity for PET imaging
Dufour, Emilie. "Inhibiteurs et modèles moléculaires de fibres amyloïdes ° et tau impliquées dans la maladie d'Alzheimer : conception, synthèse et caractérisation." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-01062180.
Full textKrishnashenoy, Padmabai Jayakrishna Shenoy. "Structural characterization of amyloid fibrils by solid-state NMR." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0245.
Full textProject 1- Structural dissection of amyloid fibrils of different TDP-43 constructs by solid-state NMRThe TAR DNA binding protein of 43 kDa (TDP-43) is observed as the main component in amyotrophic lateral sclerosis (ALS) and frontotemporal lobar dementia (FTLD) cytoplasmic inclusions. TDP-43 consists of a well-folded N-terminal domain (NTD), two RNA recognition motif domains (RRM1 and RRM2) and an intrinsically disordered C-terminal domain (CTD). The prion-like C-terminal domain possesses most of the pathologically relevant mutations and plays a critical role in the spontaneous aggregation of TDP-43 and associated proteinopathy. We used a combination of electron microscopy, X‐ray fiber diffraction, Fourier‐transform infrared spectroscopy analysis, and solid‐state NMR spectroscopy to investigate the molecular organization of different TDP construct namely full-length TDP-43, two C-terminal fragments (TDP-35 and TDP-16) and a C-terminal truncated fragment (TDP-43 ∆GaroS2) in their fibrillar state. Although the different protein constructs exhibit similar fibril morphology and a typical cross-β signature by X-ray diffraction, solid-state NMR indicates that TDP-43 and TDP-35 share the same polymorphic molecular structure. At the same time, TDP-16 encompasses a well-ordered amyloid core. Our findings demonstrate that C-terminal fragments can adopt a different molecular conformation in isolation or the context of the full-length assembly, suggesting that the N-terminal and RRM domains play a critical role in the TDP-43 amyloid transition. ss-NMR studies of TDP-43 isoforms (sTDP43-1, sTDP43-2) responsible for ALS subtypes demonstrate that these isoforms can form amyloids without the CTD and adopt an amyloid fold similar to full-length TDP-43, suggesting a misfolding mechanism of NTD and RRM domains responsible for the amyloid transition in TDP43 isoforms.Project 2- Molecular mechanism of heterotypic amyloid signaling proteins NWD2/HET-s involved in Programmed cell death in fungiThe [Het-s] prion activates HET-S pore-forming protein and triggers programmed cell death (PCD) in the fungus Podospora anserina. The HET-s -solenoid fold act as a template for the amyloid transition of the HET-S prion-forming domain (PFD). A Nod-like receptor (NLR) protein called NWD2, encoded by the gene next to het-S possesses an N-terminal motif (R0) homologous to the elementary repeat unit of HET-s b-solenoid fold (R1, R2). The NLRs are associated with host defense and programmed cell death in plants, animals, and fungi. Upon activation, the N-terminal motif (R0) can adopt the b-solenoid fold, template the amyloid transition of the HET-S prion-forming domain, and trigger the downstream cell death pathway. In this work, we deduced the atomic resolution structure of the b-solenoid fold adopted by the functional amyloid NWD2 (R0) using solid-state NMR. Also, we showed that the templating mechanism involving NWD2 and HET-S achieved by the formation of a heterotypic amyloid interface via R0/R2, followed by PCD. Ss-NMR restraints determined an atomic-resolution structure of the heterotypic amyloid interface R0/R2
Tanase, Maria Elena. "Nanomaterials self-assembly driven by beta-amyloid peptides." ScholarWorks@UNO, 2005. http://louisdl.louislibraries.org/u?/NOD,223.
Full textTitle from electronic submission form. "A thesis ... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Chemistry"--Thesis t.p. Vita. Includes bibliographical references.
Frandemiche, Marie-Lise. "Etude de la dynamique de tau dans le compartiment synaptique dans un contexte physiologique et pathologique exemple de la maladie d'Alzheimer." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-01060064.
Full textAhmed, Abdullah. "Dévelopement d'une méthode bio-informatique pour la prédiction des régions amyloidogéniques dans les protéines." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2013. http://tel.archives-ouvertes.fr/tel-00998437.
Full textHorvath, Christophe. "Réalisation de nanofils de protéines." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00647308.
Full textOuberaï, Myriam. "Conception de modèles de fibres amyloïdes et d'inhibiteurs de la fibrillogénèse." Phd thesis, Université Joseph Fourier (Grenoble), 2008. http://tel.archives-ouvertes.fr/tel-00361444.
Full textParmi les stratégies thérapeutiques développées récemment pour lutter contre les amyloses, l'inhibition de la formation des dépôts amyloïdes a été largement étudiée. Au cours de nos travaux, nous avons développé des inhibiteurs de la fibrillogénèse par la présentation de plusieurs exemplaires de molécules hydrophobes sur un cyclodécapeptide. Cette stratégie a pour but de créer une zone d'interaction avec le peptide β amyloïde suffisamment importante pour perturber son auto-association. Nous avons montré, par la réalisation d'expériences de polymérisation du peptide Aβ40, que ces composés sont des inhibiteurs très efficaces par comparaison avec les dérivés monomériques. Ces résultats confirment l'intérêt de cette stratégie pour interférer avec le phénomène de formation des fibres amyloïdes.
Books on the topic "TEP amyloïde"
Attems, Johannes, and Kurt A. Jellinger. Neuropathology. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199644957.003.0006.
Full textCornblath, David R., and Richard A. C. Hughes. Peripheral neuropathy. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199658602.003.0013.
Full textBurrell, James R., and John R. Hodges. Dementia. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199658602.003.0010.
Full textBook chapters on the topic "TEP amyloïde"
Liepnieks, J. J., M. D. Benson, and F. E. Dwulet. "Comparison of the Amino Acid Sequences of Ten Kappa I Amyloid Proteins for Amyloidogenic Sequences." In Amyloid and Amyloidosis 1990, 153–56. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3284-8_38.
Full textGysemans, M., J. Snauwaert, C. Van Haesendonck, F. Leroux, B. Goris, S. Bals, and G. Van Tendeloo. "AFM and TEM study of Ag coated insulin-derived amyloid fibrils." In EMC 2008 14th European Microscopy Congress 1–5 September 2008, Aachen, Germany, 739–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-85226-1_370.
Full textAnand, Abhinav, Neha Sharma, Monica Gulati, and Navneet Khurana. "Amyloid Beta." In Research Anthology on Diagnosing and Treating Neurocognitive Disorders, 1–17. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3441-0.ch001.
Full textAnand, Abhinav, Neha Sharma, Monica Gulati, and Navneet Khurana. "Amyloid Beta." In Advances in Medical Diagnosis, Treatment, and Care, 235–51. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-5282-6.ch011.
Full textSeldin, D. C., V. Sanchorawala, K. Malek, D. G. Wright, K. Quillen, K. T. Finn, R. Falk, et al. "High Dose Melphalan and Autologous Stem Cell Transplantation (HDM/SCT) for Treatment of AL Amyloidosis: Ten Year Single Institutional Experience." In Amyloid and Amyloidosis, 160–62. CRC Press, 2004. http://dx.doi.org/10.1201/9781420037494-56.
Full textAttems, Johannes, and Kurt A. Jellinger. "Neuropathology." In Oxford Textbook of Old Age Psychiatry, 77–98. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198807292.003.0005.
Full textGiunta, Brian, and Jun Tan. "Green Tea (−)-Epigallocatechin-3-Gallate and Amyloid Precursor Protein." In Tea in Health and Disease Prevention, 1411–23. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-384937-3.00118-x.
Full textHawkes, Christopher H., Kapil D. Sethi, and Thomas R. Swift. "Stroke." In Instant Neurological Diagnosis, 267–96. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190930868.003.0009.
Full textHawkes, Christopher H., Kapil D. Sethi, and Thomas R. Swift. "Stroke." In Instant Neurological Diagnosis, 249–78. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199361953.003.0009.
Full textAmin, Mohamed M. "Neurodegenerative Disorders." In Advances in Medical Diagnosis, Treatment, and Care, 195–216. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-5282-6.ch009.
Full textConference papers on the topic "TEP amyloïde"
McCarty, Annastacia K., and Sarah A. Bentil. "Investigating the Progression of Alzheimer’s Disease Using Digital Volume Correlation Algorithm and Strain As a Metric." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87563.
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