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366 results on '"Near, Jamie"'

1. The neurophysiological brain-fingerprint of Parkinson’s disease

Author

Breitner, John, Poirier, Judes, Baillet, Sylvain, Bellec, Pierre, Bohbot, Véronique, Chakravarty, Mallar, Collins, Louis, Etienne, Pierre, Evans, Alan, Gauthier, Serge, Hoge, Rick, Ituria-Medina, Yasser, Multhaup, Gerhard, Münter, Lisa-Marie, Rajah, Natasha, Rosa-Neto, Pedro, Soucy, Jean-Paul, Vachon-Presseau, Etienne, Villeneuve, Sylvia, Amouyel, Philippe, Appleby, Melissa, Ashton, Nicholas, Auld, Daniel, Ayranci, Gülebru, Bedetti, Christophe, Beland, Marie-Lise, Blennow, Kaj, Westman, Ann Brinkmalm, Cuello, Claudio, Dadar, Mahsa, Daoust, Leslie-Ann, Das, Samir, Dauar-Tedeschi, Marina, De Beaumont, Louis, Dea, Doris, Descoteaux, Maxime, Dufour, Marianne, Farzin, Sarah, Ferdinand, Fabiola, Fonov, Vladimir, Gonneaud, Julie, Kat, Justin, Kazazian, Christina, Labonté, Anne, Lafaille-Magnan, Marie-Elyse, Lalancette, Marc, Lambert, Jean-Charles, Leoutsakos, Jeannie-Marie, Mahar, Laura, Mathieu, Axel, McSweeney, Melissa, Meyer, Pierre-François, Miron, Justin, Near, Jamie, NewboldFox, Holly, Nilsson, Nathalie, Orban, Pierre, Picard, Cynthia, Binette, Alexa Pichet, Poline, Jean-Baptiste, Rabipour, Sheida, Salaciak, Alyssa, Settimi, Matthew, Subramaniapillai, Sivaniya, Tam, Angela, Tardif, Christine, Théroux, Louise, Tremblay-Mercier, Jennifer, Tullo, Stephanie, Ulku, Irem, Vallée, Isabelle, Zetterberg, Henrik, Nair, Vasavan, Pruessner, Jens, Aisen, Paul, Anthal, Elena, Barkun, Alan, Beaudry, Thomas, Benbouhoud, Fatiha, Brandt, Jason, Carmo, Leopoldina, Carrier, Charles Edouard, Cheewakriengkrai, Laksanun, Courcot, Blandine, Couture, Doris, Craft, Suzanne, Dansereau, Christian, Debacker, Clément, Desautels, René, Dubuc, Sylvie, Duclair, Guerda, Eisenberg, Mark, El-Khoury, Rana, Faubert, Anne-Marie, Fontaine, David, Frappier, Josée, Frenette, Joanne, Gagné, Guylaine, Gervais, Valérie, Giles, Renuka, Gordon, Renee, Jack, Clifford, Jutras, Benoit, Khachaturian, Zaven, Knopman, David, Kostopoulos, Penelope, Lapalme, Félix, Lee, Tanya, Lepage, Claude, Leppert, Illana, Madjar, Cécile, Maillet, David, Maltais, Jean-Robert, Mathotaarachchi, Sulantha, Mayrand, Ginette, Michaud, Diane, Montine, Thomas, Morris, John, Pagé, Véronique, Pascoal, Tharick, Peillieux, Sandra, Petkova, Mirela, Pogossova, Galina, Rioux, Pierre, Sager, Mark, Saint-Fort, Eunice Farah, Savard, Mélissa, Sperling, Reisa, Tabrizi, Shirin, Tariot, Pierre, Teigner, Eduard, Thomas, Ronald, Toussaint, Paule-Joanne, Tuwaig, Miranda, Venugopalan, Vinod, Verfaillie, Sander, Vogel, Jacob, Wan, Karen, Wang, Seqian, Yu, Elsa, Beaulieu-Boire, Isabelle, Blanchet, Pierre, Bogard, Sarah, Bouchard, Manon, Chouinard, Sylvain, Cicchetti, Francesca, Cloutier, Martin, Dagher, Alain, Degroot, Clotilde, Desautels, Alex, Dion, Marie Hélène, Drouin-Ouellet, Janelle, Dufresne, Anne-Marie, Dupré, Nicolas, Duquette, Antoine, Durcan, Thomas, Fellows, Lesley K., Fon, Edward, Gagnon, Jean-François, Gan-Or, Ziv, Genge, Angela, Jodoin, Nicolas, Karamchandani, Jason, Lafontaine, Anne-Louise, Langlois, Mélanie, Leveille, Etienne, Lévesque, Martin, Melmed, Calvin, Monchi, Oury, Montplaisir, Jacques, Panisset, Michel, Parent, Martin, Pham-An, Minh-Thy, Postuma, Ronald, Pourcher, Emmanuelle, Rao, Trisha, Rivest, Jean, Rouleau, Guy, Sharp, Madeleine, Soland, Valérie, Sidel, Michael, Wing Sun, Sonia Lai, Thiel, Alexander, Vitali, Paolo, da Silva Castanheira, Jason, Wiesman, Alex I., Hansen, Justine Y., and Misic, Bratislav

Published
2024
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2. Frequency drift in MR spectroscopy at 3T.

Author

Hui, Steve CN, Mikkelsen, Mark, Zöllner, Helge J, Ahluwalia, Vishwadeep, Alcauter, Sarael, Baltusis, Laima, Barany, Deborah A, Barlow, Laura R, Becker, Robert, Berman, Jeffrey I, Berrington, Adam, Bhattacharyya, Pallab K, Blicher, Jakob Udby, Bogner, Wolfgang, Brown, Mark S, Calhoun, Vince D, Castillo, Ryan, Cecil, Kim M, Choi, Yeo Bi, Chu, Winnie CW, Clarke, William T, Craven, Alexander R, Cuypers, Koen, Dacko, Michael, de la Fuente-Sandoval, Camilo, Desmond, Patricia, Domagalik, Aleksandra, Dumont, Julien, Duncan, Niall W, Dydak, Ulrike, Dyke, Katherine, Edmondson, David A, Ende, Gabriele, Ersland, Lars, Evans, C John, Fermin, Alan SR, Ferretti, Antonio, Fillmer, Ariane, Gong, Tao, Greenhouse, Ian, Grist, James T, Gu, Meng, Harris, Ashley D, Hat, Katarzyna, Heba, Stefanie, Heckova, Eva, Hegarty, John P, Heise, Kirstin-Friederike, Honda, Shiori, Jacobson, Aaron, Jansen, Jacobus FA, Jenkins, Christopher W, Johnston, Stephen J, Juchem, Christoph, Kangarlu, Alayar, Kerr, Adam B, Landheer, Karl, Lange, Thomas, Lee, Phil, Levendovszky, Swati Rane, Limperopoulos, Catherine, Liu, Feng, Lloyd, William, Lythgoe, David J, Machizawa, Maro G, MacMillan, Erin L, Maddock, Richard J, Manzhurtsev, Andrei V, Martinez-Gudino, María L, Miller, Jack J, Mirzakhanian, Heline, Moreno-Ortega, Marta, Mullins, Paul G, Nakajima, Shinichiro, Near, Jamie, Noeske, Ralph, Nordhøy, Wibeke, Oeltzschner, Georg, Osorio-Duran, Raul, Otaduy, Maria CG, Pasaye, Erick H, Peeters, Ronald, Peltier, Scott J, Pilatus, Ulrich, Polomac, Nenad, Porges, Eric C, Pradhan, Subechhya, Prisciandaro, James Joseph, Puts, Nicolaas A, Rae, Caroline D, Reyes-Madrigal, Francisco, Roberts, Timothy PL, Robertson, Caroline E, Rosenberg, Jens T, Rotaru, Diana-Georgiana, O'Gorman Tuura, Ruth L, Saleh, Muhammad G, Sandberg, Kristian, Sangill, Ryan, and Schembri, Keith

Subjects
3T, Frequency drift, Magnetic resonance spectroscopy, Multi-site, Multi-vendor, Press, Brain, Data Analysis, Databases, Factual, Humans, Magnetic Resonance Imaging, Magnetic Resonance Spectroscopy, Clinical Research, Biomedical Imaging, Neurology & Neurosurgery, Medical and Health Sciences, Psychology and Cognitive Sciences
Abstract

PurposeHeating of gradient coils and passive shim components is a common cause of instability in the B0 field, especially when gradient intensive sequences are used. The aim of the study was to set a benchmark for typical drift encountered during MR spectroscopy (MRS) to assess the need for real-time field-frequency locking on MRI scanners by comparing field drift data from a large number of sites.MethodA standardized protocol was developed for 80 participating sites using 99 3T MR scanners from 3 major vendors. Phantom water signals were acquired before and after an EPI sequence. The protocol consisted of: minimal preparatory imaging; a short pre-fMRI PRESS; a ten-minute fMRI acquisition; and a long post-fMRI PRESS acquisition. Both pre- and post-fMRI PRESS were non-water suppressed. Real-time frequency stabilization/adjustment was switched off when appropriate. Sixty scanners repeated the protocol for a second dataset. In addition, a three-hour post-fMRI MRS acquisition was performed at one site to observe change of gradient temperature and drift rate. Spectral analysis was performed using MATLAB. Frequency drift in pre-fMRI PRESS data were compared with the first 5:20 minutes and the full 30:00 minutes of data after fMRI. Median (interquartile range) drifts were measured and showed in violin plot. Paired t-tests were performed to compare frequency drift pre- and post-fMRI. A simulated in vivo spectrum was generated using FID-A to visualize the effect of the observed frequency drifts. The simulated spectrum was convolved with the frequency trace for the most extreme cases. Impacts of frequency drifts on NAA and GABA were also simulated as a function of linear drift. Data from the repeated protocol were compared with the corresponding first dataset using Pearson's and intraclass correlation coefficients (ICC).ResultsOf the data collected from 99 scanners, 4 were excluded due to various reasons. Thus, data from 95 scanners were ultimately analyzed. For the first 5:20 min (64 transients), median (interquartile range) drift was 0.44 (1.29) Hz before fMRI and 0.83 (1.29) Hz after. This increased to 3.15 (4.02) Hz for the full 30 min (360 transients) run. Average drift rates were 0.29 Hz/min before fMRI and 0.43 Hz/min after. Paired t-tests indicated that drift increased after fMRI, as expected (p < 0.05). Simulated spectra convolved with the frequency drift showed that the intensity of the NAA singlet was reduced by up to 26%, 44 % and 18% for GE, Philips and Siemens scanners after fMRI, respectively. ICCs indicated good agreement between datasets acquired on separate days. The single site long acquisition showed drift rate was reduced to 0.03 Hz/min approximately three hours after fMRI.DiscussionThis study analyzed frequency drift data from 95 3T MRI scanners. Median levels of drift were relatively low (5-min average under 1 Hz), but the most extreme cases suffered from higher levels of drift. The extent of drift varied across scanners which both linear and nonlinear drifts were observed.

Published
2021

4. A consensus protocol for functional connectivity analysis in the rat brain

Author

Grandjean, Joanes, Desrosiers-Gregoire, Gabriel, Anckaerts, Cynthia, Angeles-Valdez, Diego, Ayad, Fadi, Barrière, David A., Blockx, Ines, Bortel, Aleksandra, Broadwater, Margaret, Cardoso, Beatriz M., Célestine, Marina, Chavez-Negrete, Jorge E., Choi, Sangcheon, Christiaen, Emma, Clavijo, Perrin, Colon-Perez, Luis, Cramer, Samuel, Daniele, Tolomeo, Dempsey, Elaine, Diao, Yujian, Doelemeyer, Arno, Dopfel, David, Dvořáková, Lenka, Falfán-Melgoza, Claudia, Fernandes, Francisca F., Fowler, Caitlin F., Fuentes-Ibañez, Antonio, Garin, Clément M., Gelderman, Eveline, Golden, Carla E. M., Guo, Chao C. G., Henckens, Marloes J. A. G., Hennessy, Lauren A., Herman, Peter, Hofwijks, Nita, Horien, Corey, Ionescu, Tudor M., Jones, Jolyon, Kaesser, Johannes, Kim, Eugene, Lambers, Henriette, Lazari, Alberto, Lee, Sung-Ho, Lillywhite, Amanda, Liu, Yikang, Liu, Yanyan Y., López -Castro, Alejandra, López-Gil, Xavier, Ma, Zilu, MacNicol, Eilidh, Madularu, Dan, Mandino, Francesca, Marciano, Sabina, McAuslan, Matthew J., McCunn, Patrick, McIntosh, Alison, Meng, Xianzong, Meyer-Baese, Lisa, Missault, Stephan, Moro, Federico, Naessens, Daphne M. P., Nava-Gomez, Laura J., Nonaka, Hiroi, Ortiz, Juan J., Paasonen, Jaakko, Peeters, Lore M., Pereira, Mickaël, Perez, Pablo D., Pompilus, Marjory, Prior, Malcolm, Rakhmatullin, Rustam, Reimann, Henning M., Reinwald, Jonathan, Del Rio, Rodrigo Triana, Rivera-Olvera, Alejandro, Ruiz-Pérez, Daniel, Russo, Gabriele, Rutten, Tobias J., Ryoke, Rie, Sack, Markus, Salvan, Piergiorgio, Sanganahalli, Basavaraju G., Schroeter, Aileen, Seewoo, Bhedita J., Selingue, Erwan, Seuwen, Aline, Shi, Bowen, Sirmpilatze, Nikoloz, Smith, Joanna A. B., Smith, Corrie, Sobczak, Filip, Stenroos, Petteri J., Straathof, Milou, Strobelt, Sandra, Sumiyoshi, Akira, Takahashi, Kengo, Torres-García, Maria E., Tudela, Raul, van den Berg, Monica, van der Marel, Kajo, van Hout, Aran T. B., Vertullo, Roberta, Vidal, Benjamin, Vrooman, Roël M., Wang, Victora X., Wank, Isabel, Watson, David J. G., Yin, Ting, Zhang, Yongzhi, Zurbruegg, Stefan, Achard, Sophie, Alcauter, Sarael, Auer, Dorothee P., Barbier, Emmanuel L., Baudewig, Jürgen, Beckmann, Christian F., Beckmann, Nicolau, Becq, Guillaume J. P. C., Blezer, Erwin L. A., Bolbos, Radu, Boretius, Susann, Bouvard, Sandrine, Budinger, Eike, Buxbaum, Joseph D., Cash, Diana, Chapman, Victoria, Chuang, Kai-Hsiang, Ciobanu, Luisa, Coolen, Bram F., Dalley, Jeffrey W., Dhenain, Marc, Dijkhuizen, Rick M., Esteban, Oscar, Faber, Cornelius, Febo, Marcelo, Feindel, Kirk W., Forloni, Gianluigi, Fouquet, Jérémie, Garza-Villarreal, Eduardo A., Gass, Natalia, Glennon, Jeffrey C., Gozzi, Alessandro, Gröhn, Olli, Harkin, Andrew, Heerschap, Arend, Helluy, Xavier, Herfert, Kristina, Heuser, Arnd, Homberg, Judith R., Houwing, Danielle J., Hyder, Fahmeed, Ielacqua, Giovanna Diletta, Jelescu, Ileana O., Johansen-Berg, Heidi, Kaneko, Gen, Kawashima, Ryuta, Keilholz, Shella D., Keliris, Georgios A., Kelly, Clare, Kerskens, Christian, Khokhar, Jibran Y., Kind, Peter C., Langlois, Jean-Baptiste, Lerch, Jason P., López-Hidalgo, Monica A., Manahan-Vaughan, Denise, Marchand, Fabien, Mars, Rogier B., Marsella, Gerardo, Micotti, Edoardo, Muñoz-Moreno, Emma, Near, Jamie, Niendorf, Thoralf, Otte, Willem M., Pais-Roldán, Patricia, Pan, Wen-Ju, Prado-Alcalá, Roberto A., Quirarte, Gina L., Rodger, Jennifer, Rosenow, Tim, Sampaio-Baptista, Cassandra, Sartorius, Alexander, Sawiak, Stephen J., Scheenen, Tom W. J., Shemesh, Noam, Shih, Yen-Yu Ian, Shmuel, Amir, Soria, Guadalupe, Stoop, Ron, Thompson, Garth J., Till, Sally M., Todd, Nick, Van Der Linden, Annemie, van der Toorn, Annette, van Tilborg, Geralda A. F., Vanhove, Christian, Veltien, Andor, Verhoye, Marleen, Wachsmuth, Lydia, Weber-Fahr, Wolfgang, Wenk, Patricia, Yu, Xin, Zerbi, Valerio, Zhang, Nanyin, Zhang, Baogui B., Zimmer, Luc, Devenyi, Gabriel A., Chakravarty, M. Mallar, and Hess, Andreas

Published
2023
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5. Two pathways differentially linking tau depositions, oxidative stress, and neuronal loss to apathetic phenotypes in progressive supranuclear palsy

Author

Matsuoka, Kiwamu, Takado, Yuhei, Tagai, Kenji, Kubota, Manabu, Sano, Yasunori, Takahata, Keisuke, Ono, Maiko, Seki, Chie, Matsumoto, Hideki, Endo, Hironobu, Shinotoh, Hitoshi, Sahara, Yasuka, Obata, Takayuki, Near, Jamie, Kawamura, Kazunori, Zhang, Ming-Rong, Suhara, Tetsuya, Shimada, Hitoshi, and Higuchi, Makoto

Published
2023
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6. Subjective visual sensitivity in neurotypical adults: insights from a magnetic resonance spectroscopy study.

Author

Jurkovičová, Lenka, Páleník, Julie, Kudlička, Petr, Pezlar, Lenka, Ružičková, Alexandra, Juřík, Vojtěch, Mareček, Radek, Roman, Robert, Braithwaite, Jason J., Sandberg, Kristian, Near, Jamie, and Brázdil, Milan

Subjects
NUCLEAR magnetic resonance spectroscopy, AVERSIVE stimuli, SEX (Biology), VISUAL cortex, VISUAL perception
Abstract

Introduction: Altered subjective visual sensitivity manifests as feelings of discomfort or overload elicited by intense and irritative visual stimuli. This can result in a host of visual aberrations including visual distortions, elementary visual hallucinations and visceral responses like dizziness and nausea, collectively referred to as "pattern glare." Current knowledge of the underlying neural mechanisms has focused on overall excitability of the visual cortex, but the individual contribution of excitatory and inhibitory systems has not yet been quantified. Methods: In this study, we focus on the role of glutamate and ?-aminobutyric acid (GABA) as potential mediators of individual differences in subjective visual sensitivity, measured by a computerized Pattern Glare Test--a series of monochromatic square-wave gratings with three different spatial frequencies, while controlling for psychological variables related to sensory sensitivity with multiple questionnaires. Resting neurotransmitter concentrations in primary visual cortex (V1) and right anterior insula were studied in 160 healthy participants using magnetic resonance spectroscopy. Results: Data showed significant differences in the perception of visual distortions (VD) and comfort scores between men and women, with women generally reporting more VD, and therefore the modulatory effect of sex was considered in a further examination. A general linear model analysis showed a negative effect of occipital glutamate on a number of reported visual distortions, but also a significant role of several background psychological traits. When assessing comfort scores in women, an important intervening variable was the menstrual cycle. Discussion: Our findings do not support that baseline neurotransmitter levels have a significant role in overreactivity to aversive stimuli in neurotypical population. However, we demonstrated that biological sex can have a significant impact on subjective responses. Based on this additional finding, we suggest that future studies investigate aversive visual stimuli while examining the role of biological sex. [ABSTRACT FROM AUTHOR]

Published
2024
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8. In Vivo Assessment of Astrocyte Reactivity in Patients with Progressive Supranuclear Palsy

Author

Hirata, Kosei, primary, Matsuoka, Kiwamu, additional, Tagai, Kenji, additional, Endo, Hironobu, additional, Tatebe, Harutsugu, additional, Ono, Maiko, additional, Kokubo, Naomi, additional, Kataoka, Yuko, additional, Oyama, Asaka, additional, Shinotoh, Hitoshi, additional, Takahata, Keisuke, additional, Obata, Takayuki, additional, Dehghani, Masoumeh, additional, Near, Jamie, additional, Kawamura, Kazunori, additional, Zhang, Ming‐Rong, additional, Shimada, Hitoshi, additional, Shimizu, Hiroshi, additional, Kakita, Akiyoshi, additional, Yokota, Takanori, additional, Tokuda, Takahiko, additional, Higuchi, Makoto, additional, and Takado, Yuhei, additional

Published
2024
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9. Frequency drift in MR spectroscopy at 3T

Author

Hui, Steve C.N., Mikkelsen, Mark, Zöllner, Helge J., Ahluwalia, Vishwadeep, Alcauter, Sarael, Baltusis, Laima, Barany, Deborah A., Barlow, Laura R., Becker, Robert, Berman, Jeffrey I., Berrington, Adam, Bhattacharyya, Pallab K., Blicher, Jakob Udby, Bogner, Wolfgang, Brown, Mark S., Calhoun, Vince D., Castillo, Ryan, Cecil, Kim M., Choi, Yeo Bi, Chu, Winnie C.W., Clarke, William T., Craven, Alexander R., Cuypers, Koen, Dacko, Michael, de la Fuente-Sandoval, Camilo, Desmond, Patricia, Domagalik, Aleksandra, Dumont, Julien, Duncan, Niall W., Dydak, Ulrike, Dyke, Katherine, Edmondson, David A., Ende, Gabriele, Ersland, Lars, Evans, C. John, Fermin, Alan S.R., Ferretti, Antonio, Fillmer, Ariane, Gong, Tao, Greenhouse, Ian, Grist, James T., Gu, Meng, Harris, Ashley D., Hat, Katarzyna, Heba, Stefanie, Heckova, Eva, Hegarty, John P., II, Heise, Kirstin-Friederike, Honda, Shiori, Jacobson, Aaron, Jansen, Jacobus F.A., Jenkins, Christopher W., Johnston, Stephen J., Juchem, Christoph, Kangarlu, Alayar, Kerr, Adam B., Landheer, Karl, Lange, Thomas, Lee, Phil, Levendovszky, Swati Rane, Limperopoulos, Catherine, Liu, Feng, Lloyd, William, Lythgoe, David J., Machizawa, Maro G., MacMillan, Erin L., Maddock, Richard J., Manzhurtsev, Andrei V., Martinez-Gudino, María L., Miller, Jack J., Mirzakhanian, Heline, Moreno-Ortega, Marta, Mullins, Paul G., Nakajima, Shinichiro, Near, Jamie, Noeske, Ralph, Nordhøy, Wibeke, Oeltzschner, Georg, Osorio-Duran, Raul, Otaduy, Maria C.G., Pasaye, Erick H., Peeters, Ronald, Peltier, Scott J., Pilatus, Ulrich, Polomac, Nenad, Porges, Eric C., Pradhan, Subechhya, Prisciandaro, James Joseph, Puts, Nicolaas A, Rae, Caroline D., Reyes-Madrigal, Francisco, Roberts, Timothy P.L., Robertson, Caroline E., Rosenberg, Jens T., Rotaru, Diana-Georgiana, O'Gorman Tuura, Ruth L, Saleh, Muhammad G., Sandberg, Kristian, Sangill, Ryan, Schembri, Keith, Schrantee, Anouk, Semenova, Natalia A., Singel, Debra, Sitnikov, Rouslan, Smith, Jolinda, Song, Yulu, Stark, Craig, Stoffers, Diederick, Swinnen, Stephan P., Tain, Rongwen, Tanase, Costin, Tapper, Sofie, Tegenthoff, Martin, Thiel, Thomas, Thioux, Marc, Truong, Peter, van Dijk, Pim, Vella, Nolan, Vidyasagar, Rishma, Vovk, Andrej, Wang, Guangbin, Westlye, Lars T., Wilbur, Timothy K., Willoughby, William R., Wilson, Martin, Wittsack, Hans-Jörg, Woods, Adam J., Wu, Yen-Chien, Xu, Junqian, Lopez, Maria Yanez, Yeung, David K.W., Zhao, Qun, Zhou, Xiaopeng, Zupan, Gasper, and Edden, Richard A.E.

Published
2021
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10. The impact of the Siemens Tim Trio to Prisma upgrade and the addition of volumetric navigators on cortical thickness, structure volume, and 1H-MRS indices: An MRI reliability study with implications for longitudinal study designs

Author

Plitman, Eric, Bussy, Aurélie, Valiquette, Vanessa, Salaciak, Alyssa, Patel, Raihaan, Cupo, Lani, Béland, Marie-Lise, Tullo, Stephanie, Tardif, Christine Lucas, Rajah, M. Natasha, Near, Jamie, Devenyi, Gabriel A., and Chakravarty, M. Mallar

Published
2021
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12. Paper is not enough: Crowdsourcing the T1 mapping common ground via the ISMRM reproducibility challenge

Author

Boudreau, Mathieu, primary, Karakuzu, Agah, additional, Cohen-Adad, Julien, additional, Bozkurt, Ecem, additional, Carr, Madeline, additional, Castellaro, Marco, additional, Concha, Luis, additional, Doneva, Mariya, additional, Dual, Seraina A., additional, Ensworth, Alex, additional, Foias, Alexandru, additional, Fortier, Véronique, additional, Gabr, Refaat E., additional, Gilbert, Guillaume, additional, Glide-Hurst, Carri K., additional, Grech-Sollars, Matthew, additional, Hu, Siyuan, additional, Jalnefjord, Oscar, additional, Jovicich, Jorge, additional, Keskin, Kübra, additional, Koken, Peter, additional, Kolokotronis, Anastasia, additional, Kukran, Simran, additional, Lee, Nam. G., additional, Levesque, Ives R., additional, Li, Bochao, additional, Ma, Dan, additional, Mädler, Burkhard, additional, Maforo, Nyasha, additional, Near, Jamie, additional, Pasaye, Erick, additional, Ramirez-Manzanares, Alonso, additional, Statton, Ben, additional, Stehning, Christian, additional, Tambalo, Stefano, additional, Tian, Ye, additional, Wang, Chenyang, additional, Weis, Kilian, additional, Zakariaei, Niloufar, additional, Zhang, Shuo, additional, Zhao, Ziwei, additional, and Stikov, Nikola, additional

Published
2024
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14. Investigating the effects of aerobic exercise primed anodal transcranial direct current stimulation on γ‐aminobutyric acid concentrations in mild vascular cognitive impairment

Author

Wong, Melissa, primary, Near, Jamie, additional, Tumati, Shankar, additional, Gaur, Amish, additional, Siddiqui, Mehreen, additional, Gallagher, Damien, additional, Oh, Paul I., additional, Marzolini, Susan, additional, Black, Sandra E., additional, Swardfager, Walter, additional, Graham, Simon J., additional, Ramirez, Joel, additional, Andreazza, Ana C., additional, Rapoport, Mark J., additional, Marotta, Giovanni, additional, Herrmann, Nathan, additional, Goubran, Maged, additional, Rajji, Tarek K., additional, and Lanctôt, Krista L., additional

Published
2023
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18. In vivoassessment of astrocyte reactivity in patients with progressive supranuclear palsy

Author

Hirata, Kosei, primary, Matsuoka, Kiwamu, additional, Tagai, Kenji, additional, Endo, Hironobu, additional, Tatebe, Harutsugu, additional, Ono, Maiko, additional, Kokubo, Naomi, additional, Kataoka, Yuko, additional, Oyama, Asaka, additional, Shinotoh, Hitoshi, additional, Takahata, Keisuke, additional, Obata, Takayuki, additional, Dehghani, Masoumeh, additional, Near, Jamie, additional, Kawamura, Kazunari, additional, Zhang, Ming-Rong, additional, Shimada, Hitoshi, additional, Shimizu, Hiroshi, additional, Kakita, Akiyoshi, additional, Yokota, Takanori, additional, Tokuda, Takahiko, additional, Higuchi, Makoto, additional, and Takado, Yuhei, additional

Published
2023
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19. Neurotransmitter levels in the basal ganglia are associated with intracortical circuit activity of the primary motor cortex in healthy humans

Author

Remahi, Sarah, primary, Mabika, Madora, additional, Côté, Samantha, additional, Iorio-Morin, Christian, additional, Near, Jamie, additional, Hui, Steve C.N., additional, Edden, Richard A.E., additional, Théoret, Hugo, additional, Whittingstall, Kevin, additional, and Lepage, Jean-François, additional

Published
2023
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21. The impact of the Siemens Tim Trio to Prisma upgrade and the addition of volumetric navigators on cortical thickness, structure volume, and 1 H-MRS indices: An MRI reliability study with implications for longitudinal study designs

Author

Plitman, Eric, primary, Bussy, Aurélie, primary, Valiquette, Vanessa, primary, Salaciak, Alyssa, primary, Patel, Raihaan, primary, Cupo, Lani, primary, Béland, Marie-Lise, primary, Tullo, Stephanie, primary, Tardif, Christine Lucas, primary, Rajah, M. Natasha, primary, Near, Jamie, primary, Devenyi, Gabriel A., primary, and Chakravarty, M. Mallar, primary

Published
2023
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22. Results of the ISMRM 2020 joint Reproducible Research & Quantitative MR study groups reproducibility challenge on phantom and human brain T1 mapping

Author

Boudreau, Mathieu, primary, Karakuzu, Agah, additional, Cohen-Adad, Julien, additional, Bozkurt, Ecem, additional, Carr, Madeline, additional, Castellaro, Marco, additional, Concha, Luis, additional, Doneva, Mariya, additional, Dual, Seraina, additional, Ensworth, Alex, additional, Foias, Alexandru, additional, Fortier, Véronique, additional, Gabr, Refaat E., additional, Gilbert, Guillaume, additional, Glide-Hurst, Carri K., additional, Grech-Sollars, Matthew, additional, Hu, Siyuan, additional, Jalnefjord, Oscar, additional, Jovicich, Jorge, additional, Keskin, Kübra, additional, Koken, Peter, additional, Kolokotronis, Anastasia, additional, Kukran, Simran, additional, Lee, Nam. G., additional, Levesque, Ives R., additional, Li, Bochao, additional, Ma, Dan, additional, Mädler, Burkhard, additional, Maforo, Nyasha, additional, Near, Jamie, additional, Pasaye, Erick, additional, Ramirez-Manzanares, Alonso, additional, Statton, Ben, additional, Stehning, Christian, additional, Tambalo, Stefano, additional, Tian, Ye, additional, Wang, Chenyang, additional, Weis, Kilian, additional, Zakariaei, Niloufar, additional, Zhang, Shuo, additional, Zhao, Ziwei, additional, and Stikov, Nikola, additional

Published
2023
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23. Altered brain energy metabolism related to astrocytes in Alzheimer's disease

Author

Hirata, Kosei, primary, Matsuoka, Kiwamu, additional, Tagai, Kenji, additional, Endo, Hironobu, additional, Tatebe, Harutsugu, additional, Ono, Maiko, additional, Kokubo, Naomi, additional, Oyama, Asaka, additional, Shinotoh, Hitoshi, additional, Keisuke, Takahata, additional, Obata, Takayuki, additional, Dehghani, Masoumeh, additional, Near, Jamie, additional, Kawamura, Kazunori, additional, Zhang, Ming‐Rong, additional, Shimada, Hitoshi, additional, Yokota, Takanori, additional, Tokuda, Takahiko, additional, Higuchi, Makoto, additional, and Takado, Yuhei, additional

Published
2023
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24. Subjective Cognitive Decline Is Associated With Altered Default Mode Network Connectivity in Individuals With a Family History of Alzheimer’s Disease

Author

Aisen, Paul, Anthal, Elena, Appleby, Melissa, Ayranci, Gülebru, Barkun, Alan, Beaudry, Thomas, Bellec, Pierre, Benbouhoud, Fatiha, Bohbot, Veronique, Brandt, Jason, Breitner, John, Carmo, Leopoldina, Carrier Charles, Edouard, Chakravarty, Mallar, Cheewakriengkrai, Laksanun, Collins, Louis, Courcot, Blandine, Couture, Doris, Craft, Suzanne, Cuello, Claudio, Dadar, Mahsa, Dansereau, Christian, DasSamir, Marina, Dauar-Tedeschi, Dea, Doris, Debacker, Clement, Desautels, Rene, Dubuc, Sylvie, Duclair, Guerda, Dufour, Marianne, Eisenberg, Mark, El-Khoury, Rana, Etienne, Pierre, Evans, Alan, Faubert, Anne-Marie, Ferdinand, Fabiola, Fonov, Vladimir, Fontaine, David, Frappier, Josée, Joanne, Frenette, Gagne, Guylaine, Gauthier, Serge, Gervais, Valérie, Giles, Renuka, Gonneaud, Julie, Gordon, Renee, Hoge, Rick, Hyman, Bradley, Ituria-Medina, Yasser, Jack, Clifford, Kat, Justin, Kazazian, Christina, Khachaturian, Zaven, Knopman, David, Kostopoulos, Penelope, Labonte, Anne, Lafaille-Magnan, Marie-Elyse, Lee, Tanya, Leoutsakos, Jeannie-Marie, Lepage, Claude, Leppert, Illana, Madjar, Cécile, Mahar, Laura, Maillet, David, Maltais, Jean-Robert, Mathieu, Axel, Mathotaarachchi, Sulantha, Maultaup, Gerhard, Mayrand, Ginette, Meyer, Pierre-François, Michaud, Diane, Miron, Justin, Montine, Thomas, Morris, John, Münter, Lisa-Marie, Nair, Vasavan, Near, Jamie, Newbold-Fox, Holly, Orban, Pierre, Page, Véronique, Pascoal, Tharick, Petkova, Mirela, Picard, Cynthia, Pichet Binette, Alexa, Pogossova, Galina, Poirier, Judes, Pruessner, Jens, Rajah, Natasha, Rioux, Pierre, Rosa-Neto, Pedro, Sager, Mark, Saint-Fort, Eunice Farah, Savard, Mélissa, Sperling, Reisa, Tabrizi, Shirin, Tam, Angela, Tardif, Christine, Tariot, Pierre, Teigner, Eduard, Theroux, Louise, Thomas, Ronald, Toussaint, Paule-Joanne, Tremblay-Mercier, Jennifer, Tuwaig, Miranda, Vallee, Isabelle, Venugopalan, Vinod, Verfaillie, Sander, Villeneuve, Sylvia, Vogel, Jacob, Wan, Karen, Wang, Seqian, Yu, Elsa, Verfaillie, Sander C.J., Vachon-Presseau, Etienne, Ossenkoppele, Rik, Scheltens, Philip, van der Flier, Wiesje M., and Breitner, John C.S.

Published
2018
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29. Altered Brain Energy Metabolism Related to Astrocytes in Alzheimer's Disease.

Author

Hirata, Kosei, Matsuoka, Kiwamu, Tagai, Kenji, Endo, Hironobu, Tatebe, Harutsugu, Ono, Maiko, Kokubo, Naomi, Oyama, Asaka, Shinotoh, Hitoshi, Takahata, Keisuke, Obata, Takayuki, Dehghani, Masoumeh, Near, Jamie, Kawamura, Kazunori, Zhang, Ming‐Rong, Shimada, Hitoshi, Yokota, Takanori, Tokuda, Takahiko, Higuchi, Makoto, and Takado, Yuhei

Subjects
BRAIN metabolism, ALZHEIMER'S disease, GLIAL fibrillary acidic protein, ENERGY metabolism, NUCLEAR magnetic resonance spectroscopy
Abstract

Objective: Increasing evidence suggests that reactive astrocytes are associated with Alzheimer's disease (AD). However, its underlying pathogenesis remains unknown. Given the role of astrocytes in energy metabolism, reactive astrocytes may contribute to altered brain energy metabolism. Astrocytes are primarily considered glycolytic cells, suggesting a preference for lactate production. This study aimed to examine alterations in astrocytic activities and their association with brain lactate levels in AD. Methods: The study included 30 AD and 30 cognitively unimpaired participants. For AD participants, amyloid and tau depositions were confirmed by positron emission tomography using [11C]PiB and [18F]florzolotau, respectively. Myo‐inositol, an astroglial marker, and lactate in the posterior cingulate cortex were quantified by magnetic resonance spectroscopy. These magnetic resonance spectroscopy metabolites were compared with plasma biomarkers, including glial fibrillary acidic protein as another astrocytic marker, and amyloid and tau positron emission tomography. Results: Myo‐inositol and lactate levels were higher in AD patients than in cognitively unimpaired participants (p < 0.05). Myo‐inositol levels correlated with lactate levels (r = 0.272, p = 0.047). Myo‐inositol and lactate levels were positively associated with the Clinical Dementia Rating sum‐of‐boxes scores (p < 0.05). Significant correlations were noted between myo‐inositol levels and plasma glial fibrillary acidic protein, tau phosphorylated at threonine 181 levels, and amyloid and tau positron emission tomography accumulation in the posterior cingulate cortex (p < 0.05). Interpretation: We found high myo‐inositol levels accompanied by increased lactate levels in the posterior cingulate cortex in AD patients, indicating a link between reactive astrocytes and altered brain energy metabolism. Myo‐inositol and plasma glial fibrillary acidic protein may reflect similar astrocytic changes as biomarkers of AD. ANN NEUROL 2024;95:104–115 [ABSTRACT FROM AUTHOR]

Published
2024
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31. Author Correction: A consensus protocol for functional connectivity analysis in the rat brain

Author

Grandjean, Joanes, primary, Desrosiers-Gregoire, Gabriel, additional, Anckaerts, Cynthia, additional, Angeles-Valdez, Diego, additional, Ayad, Fadi, additional, Barrière, David A., additional, Blockx, Ines, additional, Bortel, Aleksandra, additional, Broadwater, Margaret, additional, Cardoso, Beatriz M., additional, Célestine, Marina, additional, Chavez-Negrete, Jorge E., additional, Choi, Sangcheon, additional, Christiaen, Emma, additional, Clavijo, Perrin, additional, Colon-Perez, Luis, additional, Cramer, Samuel, additional, Daniele, Tolomeo, additional, Dempsey, Elaine, additional, Diao, Yujian, additional, Doelemeyer, Arno, additional, Dopfel, David, additional, Dvořáková, Lenka, additional, Falfán-Melgoza, Claudia, additional, Fernandes, Francisca F., additional, Fowler, Caitlin F., additional, Fuentes-Ibañez, Antonio, additional, Garin, Clément M., additional, Gelderman, Eveline, additional, Golden, Carla E. M., additional, Guo, Chao C. G., additional, Henckens, Marloes J. A. G., additional, Hennessy, Lauren A., additional, Herman, Peter, additional, Hofwijks, Nita, additional, Horien, Corey, additional, Ionescu, Tudor M., additional, Jones, Jolyon, additional, Kaesser, Johannes, additional, Kim, Eugene, additional, Lambers, Henriette, additional, Lazari, Alberto, additional, Lee, Sung-Ho, additional, Lillywhite, Amanda, additional, Liu, Yikang, additional, Liu, Yanyan Y., additional, López -Castro, Alejandra, additional, López-Gil, Xavier, additional, Ma, Zilu, additional, MacNicol, Eilidh, additional, Madularu, Dan, additional, Mandino, Francesca, additional, Marciano, Sabina, additional, McAuslan, Matthew J., additional, McCunn, Patrick, additional, McIntosh, Alison, additional, Meng, Xianzong, additional, Meyer-Baese, Lisa, additional, Missault, Stephan, additional, Moro, Federico, additional, Naessens, Daphne M. P., additional, Nava-Gomez, Laura J., additional, Nonaka, Hiroi, additional, Ortiz, Juan J., additional, Paasonen, Jaakko, additional, Peeters, Lore M., additional, Pereira, Mickaël, additional, Perez, Pablo D., additional, Pompilus, Marjory, additional, Prior, Malcolm, additional, Rakhmatullin, Rustam, additional, Reimann, Henning M., additional, Reinwald, Jonathan, additional, Del Rio, Rodrigo Triana, additional, Rivera-Olvera, Alejandro, additional, Ruiz-Pérez, Daniel, additional, Russo, Gabriele, additional, Rutten, Tobias J., additional, Ryoke, Rie, additional, Sack, Markus, additional, Salvan, Piergiorgio, additional, Sanganahalli, Basavaraju G., additional, Schroeter, Aileen, additional, Seewoo, Bhedita J., additional, Selingue, Erwan, additional, Seuwen, Aline, additional, Shi, Bowen, additional, Sirmpilatze, Nikoloz, additional, Smith, Joanna A. B., additional, Smith, Corrie, additional, Sobczak, Filip, additional, Stenroos, Petteri J., additional, Straathof, Milou, additional, Strobelt, Sandra, additional, Sumiyoshi, Akira, additional, Takahashi, Kengo, additional, Torres-García, Maria E., additional, Tudela, Raul, additional, van den Berg, Monica, additional, van der Marel, Kajo, additional, van Hout, Aran T. B., additional, Vertullo, Roberta, additional, Vidal, Benjamin, additional, Vrooman, Roël M., additional, Wang, Victora X., additional, Wank, Isabel, additional, Watson, David J. G., additional, Yin, Ting, additional, Zhang, Yongzhi, additional, Zurbruegg, Stefan, additional, Achard, Sophie, additional, Alcauter, Sarael, additional, Auer, Dorothee P., additional, Barbier, Emmanuel L., additional, Baudewig, Jürgen, additional, Beckmann, Christian F., additional, Beckmann, Nicolau, additional, Becq, Guillaume J. P. C., additional, Blezer, Erwin L. A., additional, Bolbos, Radu, additional, Boretius, Susann, additional, Bouvard, Sandrine, additional, Budinger, Eike, additional, Buxbaum, Joseph D., additional, Cash, Diana, additional, Chapman, Victoria, additional, Chuang, Kai-Hsiang, additional, Ciobanu, Luisa, additional, Coolen, Bram F., additional, Dalley, Jeffrey W., additional, Dhenain, Marc, additional, Dijkhuizen, Rick M., additional, Esteban, Oscar, additional, Faber, Cornelius, additional, Febo, Marcelo, additional, Feindel, Kirk W., additional, Forloni, Gianluigi, additional, Fouquet, Jérémie, additional, Garza-Villarreal, Eduardo A., additional, Gass, Natalia, additional, Glennon, Jeffrey C., additional, Gozzi, Alessandro, additional, Gröhn, Olli, additional, Harkin, Andrew, additional, Heerschap, Arend, additional, Helluy, Xavier, additional, Herfert, Kristina, additional, Heuser, Arnd, additional, Homberg, Judith R., additional, Houwing, Danielle J., additional, Hyder, Fahmeed, additional, Ielacqua, Giovanna Diletta, additional, Jelescu, Ileana O., additional, Johansen-Berg, Heidi, additional, Kaneko, Gen, additional, Kawashima, Ryuta, additional, Keilholz, Shella D., additional, Keliris, Georgios A., additional, Kelly, Clare, additional, Kerskens, Christian, additional, Khokhar, Jibran Y., additional, Kind, Peter C., additional, Langlois, Jean-Baptiste, additional, Lerch, Jason P., additional, López-Hidalgo, Monica A., additional, Manahan-Vaughan, Denise, additional, Marchand, Fabien, additional, Mars, Rogier B., additional, Marsella, Gerardo, additional, Micotti, Edoardo, additional, Muñoz-Moreno, Emma, additional, Near, Jamie, additional, Niendorf, Thoralf, additional, Otte, Willem M., additional, Pais-Roldán, Patricia, additional, Pan, Wen-Ju, additional, Prado-Alcalá, Roberto A., additional, Quirarte, Gina L., additional, Rodger, Jennifer, additional, Rosenow, Tim, additional, Sampaio-Baptista, Cassandra, additional, Sartorius, Alexander, additional, Sawiak, Stephen J., additional, Scheenen, Tom W. J., additional, Shemesh, Noam, additional, Shih, Yen-Yu Ian, additional, Shmuel, Amir, additional, Soria, Guadalupe, additional, Stoop, Ron, additional, Thompson, Garth J., additional, Till, Sally M., additional, Todd, Nick, additional, Van Der Linden, Annemie, additional, van der Toorn, Annette, additional, van Tilborg, Geralda A. F., additional, Vanhove, Christian, additional, Veltien, Andor, additional, Verhoye, Marleen, additional, Wachsmuth, Lydia, additional, Weber-Fahr, Wolfgang, additional, Wenk, Patricia, additional, Yu, Xin, additional, Zerbi, Valerio, additional, Zhang, Nanyin, additional, Zhang, Baogui B., additional, Zimmer, Luc, additional, Devenyi, Gabriel A., additional, Chakravarty, M. Mallar, additional, and Hess, Andreas, additional

Published
2023
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32. A comprehensive guide to mega-press for GABA measurement

Author

Peek, A.L., primary, Rebbeck, T.J., additional, Leaver, A.M., additional, Foster, S.L., additional, Refshauge, K.M., additional, Puts, N.A., additional, Oeltzschner, G., additional, Andronesi, Ovidiu C., additional, Barker, Peter B., additional, Bogner, Wolfgang, additional, Cecil, Kim M., additional, Choi, In-Young, additional, Deelchand, Dinesh K., additional, de Graaf, Robin A., additional, Dydak, Ulrike, additional, Edden, Richard AE., additional, Emir, Uzay E., additional, Harris, Ashley D., additional, Lin, Alexander P., additional, Lythgoe, David J., additional, Mikkelsen, Mark, additional, Mullins, Paul G., additional, Near, Jamie, additional, Öz, Gülin, additional, Rae, Caroline D., additional, Terpstra, Melissa, additional, Williams, Stephen R., additional, and Wilson, Martin, additional

Published
2023
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33. Author Correction: A consensus protocol for functional connectivity analysis in the rat brain (Nature Neuroscience, (2023), 26, 4, (673-681), 10.1038/s41593-023-01286-8)

Author

In Vivo NMR ISI, Trialbureau Beeld, Brain, Circulatory Health, Stroke, Hubrecht Institute with UMC, Projectafdeling KIND, Grandjean, Joanes, Desrosiers-Gregoire, Gabriel, Anckaerts, Cynthia, Angeles-Valdez, Diego, Ayad, Fadi, Barrière, David A., Blockx, Ines, Bortel, Aleksandra, Broadwater, Margaret, Cardoso, Beatriz M., Célestine, Marina, Chavez-Negrete, Jorge E., Choi, Sangcheon, Christiaen, Emma, Clavijo, Perrin, Colon-Perez, Luis, Cramer, Samuel, Daniele, Tolomeo, Dempsey, Elaine, Diao, Yujian, Doelemeyer, Arno, Dopfel, David, Dvořáková, Lenka, Falfán-Melgoza, Claudia, Fernandes, Francisca F., Fowler, Caitlin F., Fuentes-Ibañez, Antonio, Garin, Clément M., Gelderman, Eveline, Golden, Carla E.M., Guo, Chao C.G., Henckens, Marloes J.A.G., Hennessy, Lauren A., Herman, Peter, Hofwijks, Nita, Horien, Corey, Ionescu, Tudor M., Jones, Jolyon, Kaesser, Johannes, Kim, Eugene, Lambers, Henriette, Lazari, Alberto, Lee, Sung Ho, Lillywhite, Amanda, Liu, Yikang, Liu, Yanyan Y., López -Castro, Alejandra, López-Gil, Xavier, Ma, Zilu, MacNicol, Eilidh, Madularu, Dan, Mandino, Francesca, Marciano, Sabina, McAuslan, Matthew J., McCunn, Patrick, McIntosh, Alison, Meng, Xianzong, Meyer-Baese, Lisa, Missault, Stephan, Moro, Federico, Naessens, Daphne M.P., Nava-Gomez, Laura J., Nonaka, Hiroi, Ortiz, Juan J., Paasonen, Jaakko, Peeters, Lore M., Pereira, Mickaël, Perez, Pablo D., Pompilus, Marjory, Prior, Malcolm, Rakhmatullin, Rustam, Reimann, Henning M., Reinwald, Jonathan, Del Rio, Rodrigo Triana, Rivera-Olvera, Alejandro, Ruiz-Pérez, Daniel, Russo, Gabriele, Rutten, Tobias J., Ryoke, Rie, Sack, Markus, Salvan, Piergiorgio, Sanganahalli, Basavaraju G., Schroeter, Aileen, Seewoo, Bhedita J., Selingue, Erwan, Seuwen, Aline, Shi, Bowen, Sirmpilatze, Nikoloz, Smith, Joanna A.B., Smith, Corrie, Sobczak, Filip, Stenroos, Petteri J., Straathof, Milou, Strobelt, Sandra, Sumiyoshi, Akira, Takahashi, Kengo, Torres-García, Maria E., Tudela, Raul, van den Berg, Monica, van der Marel, Kajo, van Hout, Aran T.B., Vertullo, Roberta, Vidal, Benjamin, Vrooman, Roël M., Wang, Victora X., Wank, Isabel, Watson, David J.G., Yin, Ting, Zhang, Yongzhi, Zurbruegg, Stefan, Achard, Sophie, Alcauter, Sarael, Auer, Dorothee P., Barbier, Emmanuel L., Baudewig, Jürgen, Beckmann, Christian F., Beckmann, Nicolau, Becq, Guillaume J.P.C., Blezer, Erwin L.A., Bolbos, Radu, Boretius, Susann, Bouvard, Sandrine, Budinger, Eike, Buxbaum, Joseph D., Cash, Diana, Chapman, Victoria, Chuang, Kai Hsiang, Ciobanu, Luisa, Coolen, Bram F., Dalley, Jeffrey W., Dhenain, Marc, Dijkhuizen, Rick M., Esteban, Oscar, Faber, Cornelius, Febo, Marcelo, Feindel, Kirk W., Forloni, Gianluigi, Fouquet, Jérémie, Garza-Villarreal, Eduardo A., Gass, Natalia, Glennon, Jeffrey C., Gozzi, Alessandro, Gröhn, Olli, Harkin, Andrew, Heerschap, Arend, Helluy, Xavier, Herfert, Kristina, Heuser, Arnd, Homberg, Judith R., Houwing, Danielle J., Hyder, Fahmeed, Ielacqua, Giovanna Diletta, Jelescu, Ileana O., Johansen-Berg, Heidi, Kaneko, Gen, Kawashima, Ryuta, Keilholz, Shella D., Keliris, Georgios A., Kelly, Clare, Kerskens, Christian, Khokhar, Jibran Y., Kind, Peter C., Langlois, Jean Baptiste, Lerch, Jason P., López-Hidalgo, Monica A., Manahan-Vaughan, Denise, Marchand, Fabien, Mars, Rogier B., Marsella, Gerardo, Micotti, Edoardo, Muñoz-Moreno, Emma, Near, Jamie, Niendorf, Thoralf, Otte, Willem M., Pais-Roldán, Patricia, Pan, Wen Ju, Prado-Alcalá, Roberto A., Quirarte, Gina L., Rodger, Jennifer, Rosenow, Tim, Sampaio-Baptista, Cassandra, Sartorius, Alexander, Sawiak, Stephen J., Scheenen, Tom W.J., Shemesh, Noam, Shih, Yen Yu Ian, Shmuel, Amir, Soria, Guadalupe, Stoop, Ron, Thompson, Garth J., Till, Sally M., Todd, Nick, Van Der Linden, Annemie, van der Toorn, Annette, van Tilborg, Geralda A.F., Vanhove, Christian, Veltien, Andor, Verhoye, Marleen, Wachsmuth, Lydia, Weber-Fahr, Wolfgang, Wenk, Patricia, Yu, Xin, Zerbi, Valerio, Zhang, Nanyin, Zhang, Baogui B., Zimmer, Luc, Devenyi, Gabriel A., Chakravarty, M. Mallar, Hess, Andreas, In Vivo NMR ISI, Trialbureau Beeld, Brain, Circulatory Health, Stroke, Hubrecht Institute with UMC, Projectafdeling KIND, Grandjean, Joanes, Desrosiers-Gregoire, Gabriel, Anckaerts, Cynthia, Angeles-Valdez, Diego, Ayad, Fadi, Barrière, David A., Blockx, Ines, Bortel, Aleksandra, Broadwater, Margaret, Cardoso, Beatriz M., Célestine, Marina, Chavez-Negrete, Jorge E., Choi, Sangcheon, Christiaen, Emma, Clavijo, Perrin, Colon-Perez, Luis, Cramer, Samuel, Daniele, Tolomeo, Dempsey, Elaine, Diao, Yujian, Doelemeyer, Arno, Dopfel, David, Dvořáková, Lenka, Falfán-Melgoza, Claudia, Fernandes, Francisca F., Fowler, Caitlin F., Fuentes-Ibañez, Antonio, Garin, Clément M., Gelderman, Eveline, Golden, Carla E.M., Guo, Chao C.G., Henckens, Marloes J.A.G., Hennessy, Lauren A., Herman, Peter, Hofwijks, Nita, Horien, Corey, Ionescu, Tudor M., Jones, Jolyon, Kaesser, Johannes, Kim, Eugene, Lambers, Henriette, Lazari, Alberto, Lee, Sung Ho, Lillywhite, Amanda, Liu, Yikang, Liu, Yanyan Y., López -Castro, Alejandra, López-Gil, Xavier, Ma, Zilu, MacNicol, Eilidh, Madularu, Dan, Mandino, Francesca, Marciano, Sabina, McAuslan, Matthew J., McCunn, Patrick, McIntosh, Alison, Meng, Xianzong, Meyer-Baese, Lisa, Missault, Stephan, Moro, Federico, Naessens, Daphne M.P., Nava-Gomez, Laura J., Nonaka, Hiroi, Ortiz, Juan J., Paasonen, Jaakko, Peeters, Lore M., Pereira, Mickaël, Perez, Pablo D., Pompilus, Marjory, Prior, Malcolm, Rakhmatullin, Rustam, Reimann, Henning M., Reinwald, Jonathan, Del Rio, Rodrigo Triana, Rivera-Olvera, Alejandro, Ruiz-Pérez, Daniel, Russo, Gabriele, Rutten, Tobias J., Ryoke, Rie, Sack, Markus, Salvan, Piergiorgio, Sanganahalli, Basavaraju G., Schroeter, Aileen, Seewoo, Bhedita J., Selingue, Erwan, Seuwen, Aline, Shi, Bowen, Sirmpilatze, Nikoloz, Smith, Joanna A.B., Smith, Corrie, Sobczak, Filip, Stenroos, Petteri J., Straathof, Milou, Strobelt, Sandra, Sumiyoshi, Akira, Takahashi, Kengo, Torres-García, Maria E., Tudela, Raul, van den Berg, Monica, van der Marel, Kajo, van Hout, Aran T.B., Vertullo, Roberta, Vidal, Benjamin, Vrooman, Roël M., Wang, Victora X., Wank, Isabel, Watson, David J.G., Yin, Ting, Zhang, Yongzhi, Zurbruegg, Stefan, Achard, Sophie, Alcauter, Sarael, Auer, Dorothee P., Barbier, Emmanuel L., Baudewig, Jürgen, Beckmann, Christian F., Beckmann, Nicolau, Becq, Guillaume J.P.C., Blezer, Erwin L.A., Bolbos, Radu, Boretius, Susann, Bouvard, Sandrine, Budinger, Eike, Buxbaum, Joseph D., Cash, Diana, Chapman, Victoria, Chuang, Kai Hsiang, Ciobanu, Luisa, Coolen, Bram F., Dalley, Jeffrey W., Dhenain, Marc, Dijkhuizen, Rick M., Esteban, Oscar, Faber, Cornelius, Febo, Marcelo, Feindel, Kirk W., Forloni, Gianluigi, Fouquet, Jérémie, Garza-Villarreal, Eduardo A., Gass, Natalia, Glennon, Jeffrey C., Gozzi, Alessandro, Gröhn, Olli, Harkin, Andrew, Heerschap, Arend, Helluy, Xavier, Herfert, Kristina, Heuser, Arnd, Homberg, Judith R., Houwing, Danielle J., Hyder, Fahmeed, Ielacqua, Giovanna Diletta, Jelescu, Ileana O., Johansen-Berg, Heidi, Kaneko, Gen, Kawashima, Ryuta, Keilholz, Shella D., Keliris, Georgios A., Kelly, Clare, Kerskens, Christian, Khokhar, Jibran Y., Kind, Peter C., Langlois, Jean Baptiste, Lerch, Jason P., López-Hidalgo, Monica A., Manahan-Vaughan, Denise, Marchand, Fabien, Mars, Rogier B., Marsella, Gerardo, Micotti, Edoardo, Muñoz-Moreno, Emma, Near, Jamie, Niendorf, Thoralf, Otte, Willem M., Pais-Roldán, Patricia, Pan, Wen Ju, Prado-Alcalá, Roberto A., Quirarte, Gina L., Rodger, Jennifer, Rosenow, Tim, Sampaio-Baptista, Cassandra, Sartorius, Alexander, Sawiak, Stephen J., Scheenen, Tom W.J., Shemesh, Noam, Shih, Yen Yu Ian, Shmuel, Amir, Soria, Guadalupe, Stoop, Ron, Thompson, Garth J., Till, Sally M., Todd, Nick, Van Der Linden, Annemie, van der Toorn, Annette, van Tilborg, Geralda A.F., Vanhove, Christian, Veltien, Andor, Verhoye, Marleen, Wachsmuth, Lydia, Weber-Fahr, Wolfgang, Wenk, Patricia, Yu, Xin, Zerbi, Valerio, Zhang, Nanyin, Zhang, Baogui B., Zimmer, Luc, Devenyi, Gabriel A., Chakravarty, M. Mallar, and Hess, Andreas

Published
2023

35. Retrospective frequency drift correction of rosette MRSI data using spectral registration.

Author

Senthil, Sneha, Kadota, Brenden, Truong, Peter, and Near, Jamie

Subjects
RECORDING & registration, SIGNAL-to-noise ratio
Abstract

Purpose: Frequency drift correction is an important postprocessing step in MRS that yields improvements in spectral quality and metabolite quantification. Although routinely applied in single‐voxel MRS, drift correction is much more challenging in MRSI due to the presence of phase‐encoding gradients. Thus, separately acquired navigator scans are normally required for drift estimation. In this work, we demonstrate the use of self‐navigating rosette MRSI trajectories combined with time‐domain spectral registration to enable retrospective frequency drift corrections without the need for separately acquired navigator echoes. Methods: A rosette MRSI sequence was implemented to acquire data from the brains of 5 healthy volunteers. FIDs from the center of k‐space (k=0$$ k=0 $$ FIDs) were isolated from each shot of the rosette acquisition, and time‐domain spectral registration was used to estimate the frequency offset of each k=0$$ k=0 $$ FID relative to a reference scan (the first k=0$$ k=0 $$ FID in the series). The estimated frequency offsets were then used to apply corrections throughout k$$ k $$‐space. Improvements in spectral quality were assessed before and after drift correction. Results: Spectral registration resulted in significant improvements in signal‐to‐noise ratio (12.9%) and spectral linewidths (18.5%). Metabolite quantification was performed using LCModel, and the average Cramer‐Rao lower bounds uncertainty estimates were reduced by 5.0% for all metabolites, following field drift correction. Conclusion: This study demonstrated the use of self‐navigating rosette MRSI trajectories to retrospectively correct frequency drift errors in in vivo MRSI data. This correction yields meaningful improvements in spectral quality. [ABSTRACT FROM AUTHOR]

Published
2023
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38. MRS-measured glutamate versus GABA reflects excitatory versus inhibitory neural activities in awake mice

Author

Yuhei, Takado, Hiroyuki, Takuwa, Sampei, Kazuaki, Takuya, Urushihata, Takahashi, Manami, Masafumi, Shimojo, Shoko, Uchida, Nobuhiro, Nitta, Sayaka, Shibata, Keisuke, Nagashima, Yoshihiro, Ochi, Maiko, Ono, Jun, Maeda, Yutaka, Tomita, Naruhiko, Sahara, Near, Jamie, Ichio, Aoki, Kazuhisa, Shibata, and Makoto, Higuchi

Subjects
nervous system
Abstract

To assess if magnetic resonance spectroscopy (MRS)-measured Glutamate (Glu) and GABA reflect excitatory and inhibitory neural activities, respectively, we conducted MRS measurements along with two-photon mesoscopic imaging of calcium signals in excitatory and inhibitory neurons of living, unanesthetized mice. For monitoring stimulus-driven activations of a brain region, MRS signals and mesoscopic neural activities were measured during two consecutive sessions of 15-min prolonged sensory stimulations. In the first session, putative excitatory neuronal activities were increased, while inhibitory neuronal activities remained at the baseline level. In the second half, while excitatory neuronal activities remained elevated, inhibitory neuronal activities were significantly enhanced. We assessed regional neurochemical statuses by measuring MRS signals, which were overall in accordance with the neural activities, and neuronal activities and neurochemical statuses in a mouse model of Dravet syndrome under resting condition. Mesoscopic assessments showed that activities of inhibitory neurons in the cortex were diminished relative to wildtype mice in contrast to spared activities of excitatory neurons. Consistent with these observations, the Dravet model exhibited lower concentrations of GABA than wild-type controls. Collectively, the current investigations demonstrate that MRS-measured Glu and GABA can reflect spontaneous and stimulated activities of neurons producing and releasing these neurotransmitters in an awake condition.

Published
2021

42. Sex-specific relationships between obesity, physical activity, and gray and white matter volume in cognitively unimpaired older adults.

Author

Intzandt, Brittany, Sanami, Safa, Huck, Julia, PREVENT-AD Research group, Labonté, Anne, Binette, Alexa Pichet, Mathieu, Axel, Picard, Cynthia, Dea, Doris, Cuello, Claudio, Evans, Alan, Tardif, Christine, Mulhaup, Gerhard, Near, Jamie, Leoutsakos, Jeannie-Marie, Bretiner, John C. S., Poirier, Judes, Münterm, Lisa-Marie, Collins, Louis, and Chakravarty, Mallar

Subjects
GRAY matter (Nerve tissue), WHITE matter (Nerve tissue), PHYSICAL activity, OLDER people, METABOLIC equivalent, COMPULSIVE eating
Abstract

Independently, obesity and physical activity (PA) influence cerebral structure in aging, yet their interaction has not been investigated. We examined sex differences in the relationships among PA, obesity, and cerebral structure in aging with 340 participants who completed magnetic resonance imaging (MRI) acquisition to quantify grey matter volume (GMV) and white matter volume (WMV). Height and weight were measured to calculate body mass index (BMI). A PA questionnaire was used to estimate weekly Metabolic Equivalents. The relationships between BMI, PA, and their interaction on GMV Regions of Interest (ROIs) and WMV ROIs were examined. Increased BMI was associated with higher GMV in females, an inverse U relationship was found between PA and GMV in females, and the interaction indicated that regardless of BMI greater PA was associated with enhanced GMV. Males demonstrated an inverse U shape between BMI and GMV, and in males with high PA and had normal weight demonstrated greater GMV than normal weight low PA revealed by the interaction. WMV ROIs had a linear relationship with moderate PA in females, whereas in males, increased BMI was associated with lower WMV as well as a positive relationship with moderate PA and WMV. Males and females have unique relationships among GMV, PA and BMI, suggesting sex-aggregated analyses may lead to biased or non-significant results. These results suggest higher BMI, and PA are associated with increased GMV in females, uniquely different from males, highlighting the importance of sex-disaggregated models. Future work should include other imaging parameters, such as perfusion, to identify if these differences co-occur in the same regions as GMV. [ABSTRACT FROM AUTHOR]

Published
2023
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45. MRSCloud: A cloud‐basedMRStool for basis set simulation

Author

Hui, Steve C. N., primary, Saleh, Muhammad G., additional, Zöllner, Helge J., additional, Oeltzschner, Georg, additional, Fan, Hongli, additional, Li, Yue, additional, Song, Yulu, additional, Jiang, Hangyi, additional, Near, Jamie, additional, Lu, Hanzhang, additional, Mori, Susumu, additional, and Edden, Richard A. E., additional

Published
2022
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49. StandardRat: A multi-center consensus protocol to enhance functional connectivity specificity in the rat brain

Author

Grandjean, Joanes, primary, Desrosiers-Gregoire, Gabriel, additional, Anckaerts, Cynthia, additional, Angeles-Valdez, Diego, additional, Ayad, Fadi, additional, Barrière, David A, additional, Blockx, Ines, additional, Bortel, Aleksandra B, additional, Broadwater, Margaret, additional, Cardoso, Beatriz M, additional, Célestine, Marina, additional, Chavez-Negrete, Jorge E, additional, Choi, Sangcheon, additional, Christiaen, Emma, additional, Clavijo, Perrin, additional, Colon-Perez, Luis, additional, Cramer, Samuel, additional, Daniele, Tolomeo, additional, Dempsey, Elaine, additional, Diao, Yujian, additional, Doelemeyer, Arno, additional, Dopfel, David, additional, Dvořáková, Lenka, additional, Falfán-Melgoza, Claudia, additional, Fernandes, Francisca F, additional, Fowler, Caitlin F, additional, Fuentes-Ibañez, Antonio, additional, Garin, Clément, additional, Gelderman, Eveline, additional, Golden, Carla EM, additional, Guo, Chao CG, additional, Henckens, Marloes JAG, additional, Hennessy, Lauren A, additional, Herman, Peter, additional, Hofwijks, Nita, additional, Horien, Corey, additional, Ionescu, Tudor M, additional, Jones, Jolyon, additional, Kaesser, Johannes, additional, Kim, Eugene, additional, Lambers, Henriette, additional, Lazari, Alberto, additional, Lee, Sung-Ho, additional, Lillywhite, Amanda, additional, Liu, Yikang, additional, Liu, Yanyan Y, additional, López-Castro, Alejandra, additional, López-Gil, Xavier, additional, Ma, Zilu, additional, MacNicol, Eilidh, additional, Madularu, Dan, additional, Mandino, Francesca, additional, Marciano, Sabina, additional, McAuslan, Matthew J, additional, McCunn, Patrick, additional, McIntosh, Alison, additional, Meng, Xianzong, additional, Meyer-Baese, Lisa, additional, Missault, Stephan, additional, Moro, Federico, additional, Naessens, Daphne, additional, Nava-Gomez, Laura J, additional, Nonaka, Hiroi, additional, Ortiz, Juan J, additional, Paasonen, Jaakko, additional, Peeters, Lore M, additional, Pereira, Mickaël, additional, Perez, Pablo D, additional, Pompilus, Marjory, additional, Prior, Malcolm, additional, Rakhmatullin, Rustam, additional, Reimann, Henning M, additional, Reinwald, Jonathan, additional, de Rio, Rodrigo Triana, additional, Rivera-Olvera, Alejandro, additional, Ruiz-Pérez, Daniel, additional, Russo, Gabriele, additional, Rutten, Tobias J, additional, Ryoke, Rie, additional, Sack, Markus, additional, Salvan, Piergiorgio, additional, Sanganahalli, Basavaraju G, additional, Schroeter, Aileen, additional, Seewoo, Bhedita J, additional, Selingue, Erwan, additional, Seuwen, Aline, additional, Shi, Bowen, additional, Sirmpilatze, Nikoloz, additional, Smith, Joanna AB, additional, Smith, Corrie, additional, Sobczak, Filip, additional, Stenroos, Petteri J, additional, Straathof, Milou, additional, Strobelt, Sandra, additional, Sumiyoshi, Akira, additional, Takahashi, Kengo, additional, Torres-García, Maria E, additional, Tudela, Raul, additional, van den Berg, Monica, additional, van der Marel, Kajo, additional, van Hout, Aran TB, additional, Vertullo, Roberta, additional, Vidal, Benjamin, additional, Vrooman, Roel M, additional, Wang, Victora X, additional, Wank, Isabel, additional, Watson, David JG, additional, Yin, Ting, additional, Zhang, Yongzhi, additional, Zurbruegg, Stefan, additional, Achard, Sophie, additional, Alcauter, Sarael, additional, Auer, Dorothee P, additional, Barbier, Emmanuel L, additional, Baudewig, Jürgen, additional, Beckmann, Christian F, additional, Beckmann, Nicolau, additional, Becq, Guillaume JPC, additional, Blezer, Erwin LA, additional, Bolbos, Radu, additional, Boretius, Susann, additional, Bouvard, Sandrine, additional, Budinger, Eike, additional, Buxbaum, Joseph D, additional, Cash, Diana, additional, Chapman, Victoria, additional, Chuang, Kai-Hsiang, additional, Ciobanu, Luisa, additional, Coolen, Bram, additional, Dalley, Jeffrey W, additional, Dhenain, Marc, additional, Dijkhuizen, Rick M, additional, Esteban, Oscar, additional, Faber, Cornelius, additional, Febo, Marcelo, additional, Feindel, Kirk W, additional, Forloni, Gianluigi, additional, Fouquet, Jérémie, additional, Garza-Villarreal, Eduardo A, additional, Gass, Natalia, additional, Glennon, Jeffrey C, additional, Gozzi, Alessandro, additional, Gröhn, Olli, additional, Harkin, Andrew, additional, Heerschap, Arend, additional, Helluy, Xavier, additional, Herfert, Kristina, additional, Heuser, Arnd, additional, Homberg, Judith R, additional, Houwing, Danielle J, additional, Hyder, Fahmeed, additional, Ielacqua, Giovanna Diletta, additional, Jelescu, Ileana O, additional, Johansen-Berg, Heidi, additional, Kaneko, Gen, additional, Kawashima, Ryuta, additional, Keilholz, Shella D, additional, Keliris, Georgios A, additional, Kelly, Clare, additional, Kerskens, Christian, additional, Khokhar, Jibran Y, additional, Kind, Peter C, additional, Langlois, Jean-Baptiste, additional, Lerch, Jason P, additional, López-Hidalgo, Monica A, additional, Manahan-Vaughan, Denise, additional, Marchand, Fabien, additional, Mars, Rogier B, additional, Marsella, Gerardo, additional, Micotti, Edoardo, additional, Muñoz-Moreno, Emma, additional, Near, Jamie, additional, Niendorf, Thoralf, additional, Otte, Willem M, additional, Pais, Patricia, additional, Pan, Wen-Ju, additional, Prado-Alcalá, Roberto A, additional, Quirarte, Gina L, additional, Rodger, Jennifer, additional, Rosenow, Tim, additional, Baptista, Cassandra Sampaio, additional, Sartorius, Alexander, additional, Sawiak, Stephen J, additional, Scheenen, Tom WJ, additional, Shemesh, Noam, additional, Shih, Yen-Yu Ian, additional, Shmuel, Amir, additional, Soria, Guadalupe, additional, Stoop, Ron, additional, Thompson, Garth J, additional, Till, Sally M, additional, Todd, Nick, additional, Van Der Linden, Annemie, additional, van der Toorn, Annette, additional, van Tilborg, Geralda AF, additional, Vanhove, Christian, additional, Veltien, Andor, additional, Verhoye, Marleen, additional, Wachsmuth, Lydia, additional, Weber-Fahr, Wolfgang, additional, Wenk, Patricia, additional, Yu, Xin, additional, Zerbi, Valerio, additional, Zhang, Nanyin, additional, Zhang, Baogui B, additional, Zimmer, Luc, additional, Devenyi, Gabriel A, additional, Chakravarty, M Mallar, additional, and Hess, Andreas, additional

Published
2022
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50. MRSCloud: a Cloud-based MR Spectroscopy Tool for Basis Set Simulation

Author

Hui, Steve C.N., primary, Saleh, Muhammad G., additional, Zöllner, Helge J., additional, Oeltzschner, Georg, additional, Fan, Hongli, additional, Li, Yue, additional, Song, Yulu, additional, Jiang, Hangyi, additional, Near, Jamie, additional, Lu, Hanzhang, additional, Mori, Susumu, additional, and Edden, Richard A. E., additional

Published
2022
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