4 results on '"Jean-Baptiste Langlois"'
Number of results to display per page
Search Results
2. Spatio-Temporal Characterization of Brain Inflammation in a Non-human Primate Stroke Model Mimicking Endovascular Thrombectomy
- Author
-
Guillaume Becker, Justine Debatisse, Margaux Rivière, Claire Crola Da Silva, Maude Beaudoin-Gobert, Omer Eker, Océane Wateau, Tae Hee Cho, Marlène Wiart, Léon Tremblay, Nicolas Costes, Inès Mérida, Jérôme Redouté, Christelle Léon, Jean-Baptiste Langlois, Didier Le Bars, Sophie Lancelot, Norbert Nighoghossian, Laura Mechtouff, and Emmanuelle Canet-Soulas
- Subjects
Pharmacology ,Pharmacology (medical) ,Neurology (clinical) - Abstract
Reperfusion therapies in acute ischemic stroke have demonstrated their efficacy in promoting clinical recovery. However, ischemia/reperfusion injury and related inflammation remain a major challenge in patient clinical management. We evaluated the spatio-temporal evolution of inflammation using sequential clinical [11C]PK11195 PET-MRI in a non-human primate (NHP) stroke model mimicking endovascular thrombectomy (EVT) with a neuroprotective cyclosporine A (CsA) treatment. The NHP underwent a 110-min transient endovascular middle cerebral artery occlusion. We acquired [11C]PK11195 dynamic PET-MR imaging at baseline, 7 and 30 days after intervention. Individual voxel-wise analysis was performed thanks to a baseline scan database. We quantified [11C]PK11195 in anatomical regions and in lesioned areas defined on per-occlusion MR diffusion-weighted imaging and perfusion [15O2]H2OPET imaging. [11C]PK11195 parametric maps showed a clear uptake overlapping the lesion core at D7, which further increased at D30. Voxel-wise analysis identified individuals with significant inflammation at D30, with voxels located within the most severe diffusion reduction area during occlusion, mainly in the putamen. The quantitative analysis revealed that thalamic inflammation lasted until D30 and was significantly reduced in the CsA-treated group compared to the placebo. In conclusion, we showed that chronic inflammation matched ADC decrease at occlusion time, a region exposed to an initial burst of damage-associated molecular patterns, in an NHP stroke model mimicking EVT. We described secondary thalamic inflammation and the protective effect of CsA in this region. We propose that major ADC drop in the putamen during occlusion may identify individuals who could benefit from early personalized treatment targeting inflammation.
- Published
- 2023
- Full Text
- View/download PDF
3. PREMISE: A database of 20Macaca FascicularisPET/MRI brain imaging available for research
- Author
-
Lucie Chalet, Justine Debatisse, Oceane Wateau, Timothe Boutelier, Marlène Wiart, Nicolas Costes, Ines Merida, Jérôme Redouté, Jean-Baptiste Langlois, Sophie Lancelot, Christelle Léon, Tae-Hee Cho, Laura Mechtouff, Omer Faruk Eker, Norbert Nighoghossian, Emmanuelle Canet-Soulas, and Guillaume Becker
- Abstract
Non-human primate (NHP) studies are unique in translational research, especially in neurosciences and neuroimaging approaches are a preferred method for scaling cross-species comparative neurosciences. In this regard, neuroimaging database development and sharing are encouraged to increase the number of subjects available to the community while limiting the number of animals used in research. We present here a simultaneous PET/MR dataset of 20 Macaca Fascicularis structured according to the Brain Imaging Data Structure (BIDS) standards. This database contains multiple MRI sequences (anatomical, diffusion and perfusion imaging notably), as well as PET perfusion and inflammation using respectively [15O]H2O and [11C]PK11195 radiotracers. We describe the pipeline method to assemble baseline data from various cohorts and qualitatively assessed all the data using signal-to-noise and contrast-to-noise ratios as well as the median of intensity. The database is stored and available through the PRIME-DE consortium repository.
- Published
- 2023
- Full Text
- View/download PDF
4. StandardRat: A multi-center consensus protocol to enhance functional connectivity specificity in the rat brain
- Author
-
Joanes Grandjean, Gabriel Desrosiers-Gregoire, Cynthia Anckaerts, Diego Angeles-Valdez, Fadi Ayad, David A Barrière, Ines Blockx, Aleksandra B Bortel, Margaret Broadwater, Beatriz M Cardoso, Marina Célestine, Jorge E Chavez-Negrete, Sangcheon Choi, Emma Christiaen, Perrin Clavijo, Luis Colon-Perez, Samuel Cramer, Tolomeo Daniele, Elaine Dempsey, Yujian Diao, Arno Doelemeyer, David Dopfel, Lenka Dvořáková, Claudia Falfán-Melgoza, Francisca F Fernandes, Caitlin F Fowler, Antonio Fuentes-Ibañez, Clément Garin, Eveline Gelderman, Carla EM Golden, Chao CG Guo, Marloes JAG Henckens, Lauren A Hennessy, Peter Herman, Nita Hofwijks, Corey Horien, Tudor M Ionescu, Jolyon Jones, Johannes Kaesser, Eugene Kim, Henriette Lambers, Alberto Lazari, Sung-Ho Lee, Amanda Lillywhite, Yikang Liu, Yanyan Y Liu, Alejandra López-Castro, Xavier López-Gil, Zilu Ma, Eilidh MacNicol, Dan Madularu, Francesca Mandino, Sabina Marciano, Matthew J McAuslan, Patrick McCunn, Alison McIntosh, Xianzong Meng, Lisa Meyer-Baese, Stephan Missault, Federico Moro, Daphne Naessens, Laura J Nava-Gomez, Hiroi Nonaka, Juan J Ortiz, Jaakko Paasonen, Lore M Peeters, Mickaël Pereira, Pablo D Perez, Marjory Pompilus, Malcolm Prior, Rustam Rakhmatullin, Henning M Reimann, Jonathan Reinwald, Rodrigo Triana de Rio, Alejandro Rivera-Olvera, Daniel Ruiz-Pérez, Gabriele Russo, Tobias J Rutten, Rie Ryoke, Markus Sack, Piergiorgio Salvan, Basavaraju G Sanganahalli, Aileen Schroeter, Bhedita J Seewoo, Erwan Selingue, Aline Seuwen, Bowen Shi, Nikoloz Sirmpilatze, Joanna AB Smith, Corrie Smith, Filip Sobczak, Petteri J Stenroos, Milou Straathof, Sandra Strobelt, Akira Sumiyoshi, Kengo Takahashi, Maria E Torres-García, Raul Tudela, Monica van den Berg, Kajo van der Marel, Aran TB van Hout, Roberta Vertullo, Benjamin Vidal, Roel M Vrooman, Victora X Wang, Isabel Wank, David JG Watson, Ting Yin, Yongzhi Zhang, Stefan Zurbruegg, Sophie Achard, Sarael Alcauter, Dorothee P Auer, Emmanuel L Barbier, Jürgen Baudewig, Christian F Beckmann, Nicolau Beckmann, Guillaume JPC Becq, Erwin LA Blezer, Radu Bolbos, Susann Boretius, Sandrine Bouvard, Eike Budinger, Joseph D Buxbaum, Diana Cash, Victoria Chapman, Kai-Hsiang Chuang, Luisa Ciobanu, Bram Coolen, Jeffrey W Dalley, Marc Dhenain, Rick M Dijkhuizen, Oscar Esteban, Cornelius Faber, Marcelo Febo, Kirk W Feindel, Gianluigi Forloni, Jérémie Fouquet, Eduardo A Garza-Villarreal, Natalia Gass, Jeffrey C Glennon, Alessandro Gozzi, Olli Gröhn, Andrew Harkin, Arend Heerschap, Xavier Helluy, Kristina Herfert, Arnd Heuser, Judith R Homberg, Danielle J Houwing, Fahmeed Hyder, Giovanna Diletta Ielacqua, Ileana O Jelescu, Heidi Johansen-Berg, Gen Kaneko, Ryuta Kawashima, Shella D Keilholz, Georgios A Keliris, Clare Kelly, Christian Kerskens, Jibran Y Khokhar, Peter C Kind, Jean-Baptiste Langlois, Jason P Lerch, Monica A López-Hidalgo, Denise Manahan-Vaughan, Fabien Marchand, Rogier B Mars, Gerardo Marsella, Edoardo Micotti, Emma Muñoz-Moreno, Jamie Near, Thoralf Niendorf, Willem M Otte, Patricia Pais, Wen-Ju Pan, Roberto A Prado-Alcalá, Gina L Quirarte, Jennifer Rodger, Tim Rosenow, Cassandra Sampaio Baptista, Alexander Sartorius, Stephen J Sawiak, Tom WJ Scheenen, Noam Shemesh, Yen-Yu Ian Shih, Amir Shmuel, Guadalupe Soria, Ron Stoop, Garth J Thompson, Sally M Till, Nick Todd, Annemie Van Der Linden, Annette van der Toorn, Geralda AF van Tilborg, Christian Vanhove, Andor Veltien, Marleen Verhoye, Lydia Wachsmuth, Wolfgang Weber-Fahr, Patricia Wenk, Xin Yu, Valerio Zerbi, Nanyin Zhang, Baogui B Zhang, Luc Zimmer, Gabriel A Devenyi, M Mallar Chakravarty, and Andreas Hess
- Abstract
Task-free functional connectivity in animal models provides an experimental framework to examine connectivity phenomena under controlled conditions and allows comparison with invasive or terminal procedures. To date, animal acquisitions are performed with varying protocols and analyses that hamper result comparison and integration. We introduce StandardRat, a consensus rat functional MRI acquisition protocol tested across 20 centers. To develop this protocol with optimized acquisition and processing parameters, we initially aggregated 65 functional imaging datasets acquired in rats from 46 centers. We developed a reproducible pipeline for the analysis of rat data acquired with diverse protocols and determined experimental and processing parameters associated with a more robust functional connectivity detection. We show that the standardized protocol enhances biologically plausible functional connectivity patterns, relative to pre-existing acquisitions. The protocol and processing pipeline described here are openly shared with the neuroimaging community to promote interoperability and cooperation towards tackling the most important challenges in neuroscience.
- Published
- 2022
- Full Text
- View/download PDF
Catalog
Books, media, physical & digital resources
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.