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https://www.readbyqxmd.com/read/29097597/multimodal-imaging-in-rat-model-recapitulates-alzheimer-s-disease-biomarkers-abnormalities
#1
Maxime J Parent, Eduardo R Zimmer, Monica Shin, Min Su Kang, Vladimir S Fonov, Axel Mathieu, Antonio Aliaga, Alexey Kostikov, Sonia Do Carmo, Doris Dea, Judes Poirier, Jean-Paul Soucy, Serge Gauthier, A Claudio Cuello, Pedro Rosa-Neto
Imaging biomarkers are frequently proposed as endpoints for clinical trials targeting brain amyloidosis in Alzheimer's Disease (AD); however, the specific impact of amyloid-β (Aβ) aggregation on biomarker abnormalities remains elusive in AD. Using the McGill-R-Thy1-APP transgenic rat as a model of selective Aβ pathology, we characterized the longitudinal progression of abnormalities in biomarkers commonly used in AD research. Middle-aged (9-11 months) transgenic animals (both male and female) displayed mild spatial memory impairments and disrupted cingulate network connectivity measured by resting-state fMRI, even in the absence of hypometabolism (measured with PET [(18)F]FDG) or detectable fibrillary amyloidosis (measured with PET [(18)F]NAV4694)...
November 2, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29089155/ultrasound-for-the-diagnosis-and-management-of-suspected-urolithiasis-in-the-emergency-department
#2
Lisa Mills, Eric J Morley, Zachary Soucy, Gary M Vilke, Samuel H F Lam
BACKGROUND: This review provides practicing emergency physicians updated information regarding point-of-care ultrasound (POCUS) imaging of patients with suspected urolithiasis. METHODS: A PubMed literature search was conducted for articles published between January 1, 1996 and May 31, 2017 and limited to human clinical trials written in English with relevant keywords. High-quality studies identified then underwent a structured review. Recommendations herein are made based on the literature review...
October 28, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29059683/association-analysis-identifies-65-new-breast-cancer-risk-loci
#3
Kyriaki Michailidou, Sara Lindström, Joe Dennis, Jonathan Beesley, Shirley Hui, Siddhartha Kar, Audrey Lemaçon, Penny Soucy, Dylan Glubb, Asha Rostamianfar, Manjeet K Bolla, Qin Wang, Jonathan Tyrer, Ed Dicks, Andrew Lee, Zhaoming Wang, Jamie Allen, Renske Keeman, Ursula Eilber, Juliet D French, Xiao Qing Chen, Laura Fachal, Karen McCue, Amy E McCart Reed, Maya Ghoussaini, Jason S Carroll, Xia Jiang, Hilary Finucane, Marcia Adams, Muriel A Adank, Habibul Ahsan, Kristiina Aittomäki, Hoda Anton-Culver, Natalia N Antonenkova, Volker Arndt, Kristan J Aronson, Banu Arun, Paul L Auer, François Bacot, Myrto Barrdahl, Caroline Baynes, Matthias W Beckmann, Sabine Behrens, Javier Benitez, Marina Bermisheva, Leslie Bernstein, Carl Blomqvist, Natalia V Bogdanova, Stig E Bojesen, Bernardo Bonanni, Anne-Lise Børresen-Dale, Judith S Brand, Hiltrud Brauch, Paul Brennan, Hermann Brenner, Louise Brinton, Per Broberg, Ian W Brock, Annegien Broeks, Angela Brooks-Wilson, Sara Y Brucker, Thomas Brüning, Barbara Burwinkel, Katja Butterbach, Qiuyin Cai, Hui Cai, Trinidad Caldés, Federico Canzian, Angel Carracedo, Brian D Carter, Jose E Castelao, Tsun L Chan, Ting-Yuan David Cheng, Kee Seng Chia, Ji-Yeob Choi, Hans Christiansen, Christine L Clarke, Margriet Collée, Don M Conroy, Emilie Cordina-Duverger, Sten Cornelissen, David G Cox, Angela Cox, Simon S Cross, Julie M Cunningham, Kamila Czene, Mary B Daly, Peter Devilee, Kimberly F Doheny, Thilo Dörk, Isabel Dos-Santos-Silva, Martine Dumont, Lorraine Durcan, Miriam Dwek, Diana M Eccles, Arif B Ekici, A Heather Eliassen, Carolina Ellberg, Mingajeva Elvira, Christoph Engel, Mikael Eriksson, Peter A Fasching, Jonine Figueroa, Dieter Flesch-Janys, Olivia Fletcher, Henrik Flyger, Lin Fritschi, Valerie Gaborieau, Marike Gabrielson, Manuela Gago-Dominguez, Yu-Tang Gao, Susan M Gapstur, José A García-Sáenz, Mia M Gaudet, Vassilios Georgoulias, Graham G Giles, Gord Glendon, Mark S Goldberg, David E Goldgar, Anna González-Neira, Grethe I Grenaker Alnæs, Mervi Grip, Jacek Gronwald, Anne Grundy, Pascal Guénel, Lothar Haeberle, Eric Hahnen, Christopher A Haiman, Niclas Håkansson, Ute Hamann, Nathalie Hamel, Susan Hankinson, Patricia Harrington, Steven N Hart, Jaana M Hartikainen, Mikael Hartman, Alexander Hein, Jane Heyworth, Belynda Hicks, Peter Hillemanns, Dona N Ho, Antoinette Hollestelle, Maartje J Hooning, Robert N Hoover, John L Hopper, Ming-Feng Hou, Chia-Ni Hsiung, Guanmengqian Huang, Keith Humphreys, Junko Ishiguro, Hidemi Ito, Motoki Iwasaki, Hiroji Iwata, Anna Jakubowska, Wolfgang Janni, Esther M John, Nichola Johnson, Kristine Jones, Michael Jones, Arja Jukkola-Vuorinen, Rudolf Kaaks, Maria Kabisch, Katarzyna Kaczmarek, Daehee Kang, Yoshio Kasuga, Michael J Kerin, Sofia Khan, Elza Khusnutdinova, Johanna I Kiiski, Sung-Won Kim, Julia A Knight, Veli-Matti Kosma, Vessela N Kristensen, Ute Krüger, Ava Kwong, Diether Lambrechts, Loic Le Marchand, Eunjung Lee, Min Hyuk Lee, Jong Won Lee, Chuen Neng Lee, Flavio Lejbkowicz, Jingmei Li, Jenna Lilyquist, Annika Lindblom, Jolanta Lissowska, Wing-Yee Lo, Sibylle Loibl, Jirong Long, Artitaya Lophatananon, Jan Lubinski, Craig Luccarini, Michael P Lux, Edmond S K Ma, Robert J MacInnis, Tom Maishman, Enes Makalic, Kathleen E Malone, Ivana Maleva Kostovska, Arto Mannermaa, Siranoush Manoukian, JoAnn E Manson, Sara Margolin, Shivaani Mariapun, Maria Elena Martinez, Keitaro Matsuo, Dimitrios Mavroudis, James McKay, Catriona McLean, Hanne Meijers-Heijboer, Alfons Meindl, Primitiva Menéndez, Usha Menon, Jeffery Meyer, Hui Miao, Nicola Miller, Nur Aishah Mohd Taib, Kenneth Muir, Anna Marie Mulligan, Claire Mulot, Susan L Neuhausen, Heli Nevanlinna, Patrick Neven, Sune F Nielsen, Dong-Young Noh, Børge G Nordestgaard, Aaron Norman, Olufunmilayo I Olopade, Janet E Olson, Håkan Olsson, Curtis Olswold, Nick Orr, V Shane Pankratz, Sue K Park, Tjoung-Won Park-Simon, Rachel Lloyd, Jose I A Perez, Paolo Peterlongo, Julian Peto, Kelly-Anne Phillips, Mila Pinchev, Dijana Plaseska-Karanfilska, Ross Prentice, Nadege Presneau, Darya Prokofyeva, Elizabeth Pugh, Katri Pylkäs, Brigitte Rack, Paolo Radice, Nazneen Rahman, Gadi Rennert, Hedy S Rennert, Valerie Rhenius, Atocha Romero, Jane Romm, Kathryn J Ruddy, Thomas Rüdiger, Anja Rudolph, Matthias Ruebner, Emiel J T Rutgers, Emmanouil Saloustros, Dale P Sandler, Suleeporn Sangrajrang, Elinor J Sawyer, Daniel F Schmidt, Rita K Schmutzler, Andreas Schneeweiss, Minouk J Schoemaker, Fredrick Schumacher, Peter Schürmann, Rodney J Scott, Christopher Scott, Sheila Seal, Caroline Seynaeve, Mitul Shah, Priyanka Sharma, Chen-Yang Shen, Grace Sheng, Mark E Sherman, Martha J Shrubsole, Xiao-Ou Shu, Ann Smeets, Christof Sohn, Melissa C Southey, John J Spinelli, Christa Stegmaier, Sarah Stewart-Brown, Jennifer Stone, Daniel O Stram, Harald Surowy, Anthony Swerdlow, Rulla Tamimi, Jack A Taylor, Maria Tengström, Soo H Teo, Mary Beth Terry, Daniel C Tessier, Somchai Thanasitthichai, Kathrin Thöne, Rob A E M Tollenaar, Ian Tomlinson, Ling Tong, Diana Torres, Thérèse Truong, Chiu-Chen Tseng, Shoichiro Tsugane, Hans-Ulrich Ulmer, Giske Ursin, Michael Untch, Celine Vachon, Christi J van Asperen, David Van Den Berg, Ans M W van den Ouweland, Lizet van der Kolk, Rob B van der Luijt, Daniel Vincent, Jason Vollenweider, Quinten Waisfisz, Shan Wang-Gohrke, Clarice R Weinberg, Camilla Wendt, Alice S Whittemore, Hans Wildiers, Walter Willett, Robert Winqvist, Alicja Wolk, Anna H Wu, Lucy Xia, Taiki Yamaji, Xiaohong R Yang, Cheng Har Yip, Keun-Young Yoo, Jyh-Cherng Yu, Wei Zheng, Ying Zheng, Bin Zhu, Argyrios Ziogas, Elad Ziv, Sunil R Lakhani, Antonis C Antoniou, Arnaud Droit, Irene L Andrulis, Christopher I Amos, Fergus J Couch, Paul D P Pharoah, Jenny Chang-Claude, Per Hall, David J Hunter, Roger L Milne, Montserrat García-Closas, Marjanka K Schmidt, Stephen J Chanock, Alison M Dunning, Stacey L Edwards, Gary D Bader, Georgia Chenevix-Trench, Jacques Simard, Peter Kraft, Douglas F Easton
Breast cancer risk is influenced by rare coding variants in susceptibility genes, such as BRCA1, and many common, mostly non-coding variants. However, much of the genetic contribution to breast cancer risk remains unknown. Here we report the results of a genome-wide association study of breast cancer in 122,977 cases and 105,974 controls of European ancestry and 14,068 cases and 13,104 controls of East Asian ancestry. We identified 65 new loci that are associated with overall breast cancer risk at P < 5 × 10(-8)...
November 2, 2017: Nature
https://www.readbyqxmd.com/read/29058716/identification-of-ten-variants-associated-with-risk-of-estrogen-receptor-negative-breast-cancer
#4
Roger L Milne, Karoline B Kuchenbaecker, Kyriaki Michailidou, Jonathan Beesley, Siddhartha Kar, Sara Lindström, Shirley Hui, Audrey Lemaçon, Penny Soucy, Joe Dennis, Xia Jiang, Asha Rostamianfar, Hilary Finucane, Manjeet K Bolla, Lesley McGuffog, Qin Wang, Cora M Aalfs, Marcia Adams, Julian Adlard, Simona Agata, Shahana Ahmed, Habibul Ahsan, Kristiina Aittomäki, Fares Al-Ejeh, Jamie Allen, Christine B Ambrosone, Christopher I Amos, Irene L Andrulis, Hoda Anton-Culver, Natalia N Antonenkova, Volker Arndt, Norbert Arnold, Kristan J Aronson, Bernd Auber, Paul L Auer, Margreet G E M Ausems, Jacopo Azzollini, François Bacot, Judith Balmaña, Monica Barile, Laure Barjhoux, Rosa B Barkardottir, Myrto Barrdahl, Daniel Barnes, Daniel Barrowdale, Caroline Baynes, Matthias W Beckmann, Javier Benitez, Marina Bermisheva, Leslie Bernstein, Yves-Jean Bignon, Kathleen R Blazer, Marinus J Blok, Carl Blomqvist, William Blot, Kristie Bobolis, Bram Boeckx, Natalia V Bogdanova, Anders Bojesen, Stig E Bojesen, Bernardo Bonanni, Anne-Lise Børresen-Dale, Aniko Bozsik, Angela R Bradbury, Judith S Brand, Hiltrud Brauch, Hermann Brenner, Brigitte Bressac-de Paillerets, Carole Brewer, Louise Brinton, Per Broberg, Angela Brooks-Wilson, Joan Brunet, Thomas Brüning, Barbara Burwinkel, Saundra S Buys, Jinyoung Byun, Qiuyin Cai, Trinidad Caldés, Maria A Caligo, Ian Campbell, Federico Canzian, Olivier Caron, Angel Carracedo, Brian D Carter, J Esteban Castelao, Laurent Castera, Virginie Caux-Moncoutier, Salina B Chan, Jenny Chang-Claude, Stephen J Chanock, Xiaoqing Chen, Ting-Yuan David Cheng, Jocelyne Chiquette, Hans Christiansen, Kathleen B M Claes, Christine L Clarke, Thomas Conner, Don M Conroy, Jackie Cook, Emilie Cordina-Duverger, Sten Cornelissen, Isabelle Coupier, Angela Cox, David G Cox, Simon S Cross, Katarina Cuk, Julie M Cunningham, Kamila Czene, Mary B Daly, Francesca Damiola, Hatef Darabi, Rosemarie Davidson, Kim De Leeneer, Peter Devilee, Ed Dicks, Orland Diez, Yuan Chun Ding, Nina Ditsch, Kimberly F Doheny, Susan M Domchek, Cecilia M Dorfling, Thilo Dörk, Isabel Dos-Santos-Silva, Stéphane Dubois, Pierre-Antoine Dugué, Martine Dumont, Alison M Dunning, Lorraine Durcan, Miriam Dwek, Bernd Dworniczak, Diana Eccles, Ros Eeles, Hans Ehrencrona, Ursula Eilber, Bent Ejlertsen, Arif B Ekici, A Heather Eliassen, Christoph Engel, Mikael Eriksson, Laura Fachal, Laurence Faivre, Peter A Fasching, Ulrike Faust, Jonine Figueroa, Dieter Flesch-Janys, Olivia Fletcher, Henrik Flyger, William D Foulkes, Eitan Friedman, Lin Fritschi, Debra Frost, Marike Gabrielson, Pragna Gaddam, Marilie D Gammon, Patricia A Ganz, Susan M Gapstur, Judy Garber, Vanesa Garcia-Barberan, José A García-Sáenz, Mia M Gaudet, Marion Gauthier-Villars, Andrea Gehrig, Vassilios Georgoulias, Anne-Marie Gerdes, Graham G Giles, Gord Glendon, Andrew K Godwin, Mark S Goldberg, David E Goldgar, Anna González-Neira, Paul Goodfellow, Mark H Greene, Grethe I Grenaker Alnæs, Mervi Grip, Jacek Gronwald, Anne Grundy, Daphne Gschwantler-Kaulich, Pascal Guénel, Qi Guo, Lothar Haeberle, Eric Hahnen, Christopher A Haiman, Niclas Håkansson, Emily Hallberg, Ute Hamann, Nathalie Hamel, Susan Hankinson, Thomas V O Hansen, Patricia Harrington, Steven N Hart, Jaana M Hartikainen, Catherine S Healey, Alexander Hein, Sonja Helbig, Alex Henderson, Jane Heyworth, Belynda Hicks, Peter Hillemanns, Shirley Hodgson, Frans B Hogervorst, Antoinette Hollestelle, Maartje J Hooning, Bob Hoover, John L Hopper, Chunling Hu, Guanmengqian Huang, Peter J Hulick, Keith Humphreys, David J Hunter, Evgeny N Imyanitov, Claudine Isaacs, Motoki Iwasaki, Louise Izatt, Anna Jakubowska, Paul James, Ramunas Janavicius, Wolfgang Janni, Uffe Birk Jensen, Esther M John, Nichola Johnson, Kristine Jones, Michael Jones, Arja Jukkola-Vuorinen, Rudolf Kaaks, Maria Kabisch, Katarzyna Kaczmarek, Daehee Kang, Karin Kast, Renske Keeman, Michael J Kerin, Carolien M Kets, Machteld Keupers, Sofia Khan, Elza Khusnutdinova, Johanna I Kiiski, Sung-Won Kim, Julia A Knight, Irene Konstantopoulou, Veli-Matti Kosma, Vessela N Kristensen, Torben A Kruse, Ava Kwong, Anne-Vibeke Lænkholm, Yael Laitman, Fiona Lalloo, Diether Lambrechts, Keren Landsman, Christine Lasset, Conxi Lazaro, Loic Le Marchand, Julie Lecarpentier, Andrew Lee, Eunjung Lee, Jong Won Lee, Min Hyuk Lee, Flavio Lejbkowicz, Fabienne Lesueur, Jingmei Li, Jenna Lilyquist, Anne Lincoln, Annika Lindblom, Jolanta Lissowska, Wing-Yee Lo, Sibylle Loibl, Jirong Long, Jennifer T Loud, Jan Lubinski, Craig Luccarini, Michael Lush, Robert J MacInnis, Tom Maishman, Enes Makalic, Ivana Maleva Kostovska, Kathleen E Malone, Siranoush Manoukian, JoAnn E Manson, Sara Margolin, John W M Martens, Maria Elena Martinez, Keitaro Matsuo, Dimitrios Mavroudis, Sylvie Mazoyer, Catriona McLean, Hanne Meijers-Heijboer, Primitiva Menéndez, Jeffery Meyer, Hui Miao, Austin Miller, Nicola Miller, Gillian Mitchell, Marco Montagna, Kenneth Muir, Anna Marie Mulligan, Claire Mulot, Sue Nadesan, Katherine L Nathanson, Susan L Neuhausen, Heli Nevanlinna, Ines Nevelsteen, Dieter Niederacher, Sune F Nielsen, Børge G Nordestgaard, Aaron Norman, Robert L Nussbaum, Edith Olah, Olufunmilayo I Olopade, Janet E Olson, Curtis Olswold, Kai-Ren Ong, Jan C Oosterwijk, Nick Orr, Ana Osorio, V Shane Pankratz, Laura Papi, Tjoung-Won Park-Simon, Ylva Paulsson-Karlsson, Rachel Lloyd, Inge Søkilde Pedersen, Bernard Peissel, Ana Peixoto, Jose I A Perez, Paolo Peterlongo, Julian Peto, Georg Pfeiler, Catherine M Phelan, Mila Pinchev, Dijana Plaseska-Karanfilska, Bruce Poppe, Mary E Porteous, Ross Prentice, Nadege Presneau, Darya Prokofieva, Elizabeth Pugh, Miquel Angel Pujana, Katri Pylkäs, Brigitte Rack, Paolo Radice, Nazneen Rahman, Johanna Rantala, Christine Rappaport-Fuerhauser, Gad Rennert, Hedy S Rennert, Valerie Rhenius, Kerstin Rhiem, Andrea Richardson, Gustavo C Rodriguez, Atocha Romero, Jane Romm, Matti A Rookus, Anja Rudolph, Thomas Ruediger, Emmanouil Saloustros, Joyce Sanders, Dale P Sandler, Suleeporn Sangrajrang, Elinor J Sawyer, Daniel F Schmidt, Minouk J Schoemaker, Fredrick Schumacher, Peter Schürmann, Lukas Schwentner, Christopher Scott, Rodney J Scott, Sheila Seal, Leigha Senter, Caroline Seynaeve, Mitul Shah, Priyanka Sharma, Chen-Yang Shen, Xin Sheng, Hermela Shimelis, Martha J Shrubsole, Xiao-Ou Shu, Lucy E Side, Christian F Singer, Christof Sohn, Melissa C Southey, John J Spinelli, Amanda B Spurdle, Christa Stegmaier, Dominique Stoppa-Lyonnet, Grzegorz Sukiennicki, Harald Surowy, Christian Sutter, Anthony Swerdlow, Csilla I Szabo, Rulla M Tamimi, Yen Y Tan, Jack A Taylor, Maria-Isabel Tejada, Maria Tengström, Soo H Teo, Mary B Terry, Daniel C Tessier, Alex Teulé, Kathrin Thöne, Darcy L Thull, Maria Grazia Tibiletti, Laima Tihomirova, Marc Tischkowitz, Amanda E Toland, Rob A E M Tollenaar, Ian Tomlinson, Ling Tong, Diana Torres, Martine Tranchant, Thérèse Truong, Kathy Tucker, Nadine Tung, Jonathan Tyrer, Hans-Ulrich Ulmer, Celine Vachon, Christi J van Asperen, David Van Den Berg, Ans M W van den Ouweland, Elizabeth J van Rensburg, Liliana Varesco, Raymonda Varon-Mateeva, Ana Vega, Alessandra Viel, Joseph Vijai, Daniel Vincent, Jason Vollenweider, Lisa Walker, Zhaoming Wang, Shan Wang-Gohrke, Barbara Wappenschmidt, Clarice R Weinberg, Jeffrey N Weitzel, Camilla Wendt, Jelle Wesseling, Alice S Whittemore, Juul T Wijnen, Walter Willett, Robert Winqvist, Alicja Wolk, Anna H Wu, Lucy Xia, Xiaohong R Yang, Drakoulis Yannoukakos, Daniela Zaffaroni, Wei Zheng, Bin Zhu, Argyrios Ziogas, Elad Ziv, Kristin K Zorn, Manuela Gago-Dominguez, Arto Mannermaa, Håkan Olsson, Manuel R Teixeira, Jennifer Stone, Kenneth Offit, Laura Ottini, Sue K Park, Mads Thomassen, Per Hall, Alfons Meindl, Rita K Schmutzler, Arnaud Droit, Gary D Bader, Paul D P Pharoah, Fergus J Couch, Douglas F Easton, Peter Kraft, Georgia Chenevix-Trench, Montserrat García-Closas, Marjanka K Schmidt, Antonis C Antoniou, Jacques Simard
Most common breast cancer susceptibility variants have been identified through genome-wide association studies (GWAS) of predominantly estrogen receptor (ER)-positive disease. We conducted a GWAS using 21,468 ER-negative cases and 100,594 controls combined with 18,908 BRCA1 mutation carriers (9,414 with breast cancer), all of European origin. We identified independent associations at P < 5 × 10(-8) with ten variants at nine new loci. At P < 0.05, we replicated associations with 10 of 11 variants previously reported in ER-negative disease or BRCA1 mutation carrier GWAS and observed consistent associations with ER-negative disease for 105 susceptibility variants identified by other studies...
October 23, 2017: Nature Genetics
https://www.readbyqxmd.com/read/29038443/phylogenetic-analysis-of-the-metazoan-carotenoid-oxygenase-superfamily-a-new-ancestral-gene-assemblage-of-bco-like-bcol-proteins
#5
Eugenia Poliakov, Joseph Soucy, Susan Gentleman, Igor B Rogozin, T Michael Redmond
Here we describe a new family of carotenoid cleavage oxygenases (CCOs) in metazoans, the BCO2-like (BCOL) clade, which contains lancelet, nematode, and molluscan carotenoid oxygenase sequences. Phylogenetic analysis of CCOs in all kingdoms of life confirmed that the BCOL enzymes are an independent clade of ancient origin. One of the predicted lancelet BCOL proteins, cloned and analyzed for carotenoid cleavage activity in a bacterial carotenoid expression system, had activity similar to lancelet BCO2 proteins, although with a preference for cis isomers...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28972121/gaze-stabilizing-central-vestibular-neurons-project-asymmetrically-to-extraocular-motoneuron-pools
#6
David Schoppik, Isaac H Bianco, David A Prober, Adam D Douglass, Drew N Robson, Jennifer M B Li, Joel S F Greenwood, Edward Soucy, Florian Engert, Alexander F Schier
Within reflex circuits, specific anatomical projections allow central neurons to relay sensations to effectors that generate movements. A major challenge is to relate anatomical features of central neural populations -- such as asymmetric connectivity -- to the computations the populations perform. To address this problem, we mapped the anatomy, modeled the function, and discovered a new behavioral role for a genetically-defined population of central vestibular neurons in rhombomeres 5-7 of larval zebrafish...
September 29, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28958044/altered-regional-cerebral-blood-flow-in-idiopathic-hypersomnia
#7
Soufiane Boucetta, Jacques Montplaisir, Antonio Zadra, Francis Lachapelle, Jean-Paul Soucy, Paul Gravel, Thien Thanh Dang-Vu
Objectives: Idiopathic hypersomnia is characterized by excessive daytime sleepiness despite normal or long sleep time. Its pathophysiological mechanisms remain unclear. This pilot study aims at characterizing the neural correlates of idiopathic hypersomnia using single photon emission computed tomography. Methods: Thirteen participants with idiopathic hypersomnia and sixteen healthy controls were scanned during resting wakefulness using a high-resolution single photon emission computed tomography scanner with 99mTc-ethyl cysteinate dimer to assess cerebral blood flow...
August 23, 2017: Sleep
https://www.readbyqxmd.com/read/28955966/a-3d-psoriatic-skin-model-for-dermatological-testing-the-impact-of-culture-conditions
#8
Alexandra Duque-Fernandez, Lydia Gauthier, Mélissa Simard, Jessica Jean, Isabelle Gendreau, Alexandre Morin, Jacques Soucy, Michèle Auger, Roxane Pouliot
BACKGROUND: Inadequate representation of the human tissue environment during a preclinical screen can result in inaccurate predictions of compound effects. Consequently, pharmaceutical investigators are searching for preclinical models that closely resemble original tissue for predicting clinical outcomes. METHODS: The current research aims to compare the impact of using serum-free medium instead of complete culture medium during the last step of psoriatic skin substitute reconstruction...
December 2016: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28927740/comparative-evaluation-of-iodine-125-radioactive-seed-localization-and-wire-localization-for-resection-of-breast-lesions
#9
COMPARATIVE STUDY
Vi Thuy Tran, Julie David, Erica Patocskai, Mathieu Zummo-Soucy, Rami Younan, Lucie Lalonde, Maude Labelle, Mona El Khoury, André Robidoux, Isabelle Trop
PURPOSE: Radioactive seed localization (RSL) uses a titanium seed labeled with iodine-125 energy for surgery of nonpalpable breast lesions. RSL facilitates radiology-surgery scheduling and allows for improved oncoplasty compared with wire localization (WL). The purpose of this work was to compare the 2 techniques. METHODS: We performed a retrospective study of all breast lesions operated with RSL between February 2013 and March 2015 at our university institution, and compared with an equivalent number of surgeries performed with a single WL...
November 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28894304/quantification-of-brain-cholinergic-denervation-in-alzheimer-s-disease-using-pet-imaging-with-18-f-feobv
#10
M Aghourian, C Legault-Denis, J-P Soucy, P Rosa-Neto, S Gauthier, A Kostikov, P Gravel, M-A Bédard
(18)F-fluoroethoxybenzovesamicol (FEOBV) is a new PET radiotracer that binds to the vesicular acetylcholine transporter. In both animals and healthy humans, FEOBV was found sensitive and reliable to characterize presynaptic cholinergic nerve terminals in the brain. It has been used here for we believe the first time in patients with Alzheimer's disease (AD) to quantify brain cholinergic losses. The sample included 12 participants evenly divided in healthy subjects and patients with AD, all assessed with the Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) cognitive scales...
September 12, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28892090/probing-the-roles-of-sumoylation-in-cancer-cell-biology-by-using-a-selective-sae-inhibitor
#11
Xingyue He, Jessica Riceberg, Teresa Soucy, Erik Koenig, James Minissale, Melissa Gallery, Hugues Bernard, Xiaofeng Yang, Hua Liao, Claudia Rabino, Pooja Shah, Kristina Xega, Zhong-Hua Yan, Mike Sintchak, John Bradley, He Xu, Matt Duffey, Dylan England, Hirotake Mizutani, Zhigen Hu, Jianping Guo, Ryan Chau, Lawrence R Dick, James E Brownell, John Newcomb, Steve Langston, Eric S Lightcap, Neil Bence, Sai M Pulukuri
Small ubiquitin-like modifier (SUMO) family proteins regulate target-protein functions by post-translational modification. However, a potent and selective inhibitor targeting the SUMO pathway has been lacking. Here we describe ML-792, a mechanism-based SUMO-activating enzyme (SAE) inhibitor with nanomolar potency in cellular assays. ML-792 selectively blocks SAE enzyme activity and total SUMOylation, thus decreasing cancer cell proliferation. Moreover, we found that induction of the MYC oncogene increased the ML-792-mediated viability effect in cancer cells, thus indicating a potential application of SAE inhibitors in treating MYC-amplified tumors...
November 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28886464/muscle-activity-during-backward-and-forward-running-with-body-weight-support
#12
Kenji Masumoto, Michael T Soucy, Joshua P Bailey, John A Mercer
We investigated muscle activity during backward (BR) and forward (FR) running with body weight support (BWS). Ten participants completed BR and FR on a lower body positive pressure treadmill while selecting a preferred speed (PS) for different BWS conditions (0%, 20%, 40%, 60%, and 80%BWS). Muscle activity from the rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and gastrocnemius (GA), rating of perceived exertion (RPE), preferred stride frequency (PSF), and PS were measured. Magnitude of muscle activity (BF, TA, and GA), RPE, PSF, and PS were not influenced by the interaction of direction and BWS (P>0...
September 5, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28780772/prophylaxis-use-among-males-with-haemophilia-b-in-the-united-states
#13
M Ullman, Q C Zhang, S D Grosse, M Recht, J M Soucie
INTRODUCTION: Prophylaxis is considered the optimal treatment for persons with moderate to severe haemophilia (factor activity between 1-5% of normal and <1% of normal respectively) in countries where safe factor concentrates are available and economically feasible. Historically, prophylactic treatment has not been well studied in the haemophilia B (HB) population due to difficulties in obtaining a sufficiently large sample. AIM: This study examines the prevalence of prophylaxis use among a robust sample of persons with HB in the United States and its association with specific demographic and clinical characteristics...
November 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28780106/economic-effect-of-reducing-nitrogen-and-phosphorus-mass-balance-on-wisconsin-and-qu%C3%A3-bec-dairy-farms
#14
D Pellerin, E Charbonneau, L Fadul-Pacheco, O Soucy, M A Wattiaux
Our objective was to explore the trade-offs between economic performance (farm net income, FNI) and environmental outcomes (whole-farm P and N balances) of dairy farms in Wisconsin (WI; United States) and Québec (QC; Canada). An Excel-based linear program model (N-CyCLES; nutrient cycling: crops, livestock, environment, and soil) was developed to optimize feeding, cropping, and manure management as a single unit of management. In addition to FNI, P and N balances model outputs included (1) the mix of up to 9 home-grown and 17 purchased feeds for up to 5 animal groups, (2) the mix of up to 5 crop rotations in up to 5 land units and c) the mix of up to 7 fertilizers (solid and liquid manure and 5 commercial fertilizers) to allocate in each land unit...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28696690/a-kinome-wide-selective-radiolabeled-trkb-c-inhibitor-for-in-vitro-and-in-vivo-neuroimaging-synthesis-preclinical-evaluation-and-first-in-human
#15
Vadim Bernard-Gauthier, Justin J Bailey, Andrew V Mossine, Simon Lindner, Lena Vomacka, Arturo Aliaga, Xia Shao, Carole A Quesada, Phillip Sherman, Anne Mahringer, Alexey Kostikov, Marilyn Grand'Maison, Pedro Rosa-Neto, Jean-Paul Soucy, Alexander Thiel, David R Kaplan, Gert Fricker, Björn Wängler, Peter Bartenstein, Ralf Schirrmacher, Peter J H Scott
The proto-oncogenes NTRK1/2/3 encode the tropomyosin receptor kinases TrkA/B/C which play pivotal roles in neurobiology and cancer. We describe herein the discovery of [(11)C]-(R)-3 ([(11)C]-(R)-IPMICF16), a first-in-class positron emission tomography (PET) TrkB/C-targeting radiolabeled kinase inhibitor lead. Relying on extensive human kinome vetting, we show that (R)-3 is the most potent and most selective TrkB/C inhibitor characterized to date. It is demonstrated that [(11)C]-(R)-3 readily crosses the blood-brain barrier (BBB) in rodents and selectively binds to TrkB/C receptors in vivo, as evidenced by entrectinib blocking studies...
August 24, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28659437/type-2-immunity-is-protective-in-metabolic-disease-but-exacerbates-nafld-collaboratively-with-tgf-%C3%AE
#16
Kevin M Hart, Thomas Fabre, Joshua C Sciurba, Richard L Gieseck, Lee A Borthwick, Kevin M Vannella, Thomas H Acciani, Rafael de Queiroz Prado, Robert W Thompson, Sandra White, Genevieve Soucy, Marc Bilodeau, Thirumalai R Ramalingam, Joseph R Arron, Naglaa H Shoukry, Thomas A Wynn
Nonalcoholic fatty liver disease (NAFLD) is now the most common progressive liver disease in developed countries and is the second leading indication for liver transplantation due to the extensive fibrosis it causes. NAFLD progression is thought to be tied to chronic low-level type 1 inflammation originating in the adipose tissue during obesity; however, the specific immunological mechanisms regulating the progression of NAFLD-associated fibrosis in the liver are unclear. To investigate the immunopathogenesis of NAFLD more completely, we investigated adipose dysfunction, nonalcoholic steatohepatitis (NASH), and fibrosis in mice that develop polarized type 1 or type 2 immune responses...
June 28, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28658090/patient-needs-required-level-of-care-and-reasons-delaying-hospital-discharge-for-nonacute-patients-occupying-acute-hospital-beds
#17
Marc Afilalo, Xiaoqing Xue, Nathalie Soucy, Antoinette Colacone, Emmanuelle Jourdenais, Jean-François Boivin
This study aims to determine the proportion of nonacute patients occupying acute care beds and to describe their needs, the appropriate level of alternative care, and reasons preventing discharge. Data from 952 patients hospitalized in an acute care unit for 30 days were obtained from their medical charts and by consulting with the medical team at two tertiary teaching hospitals. Among them, 333 (35%) were determined nonacute on day 30 of hospitalization. According to the Appropriateness Evaluation Protocol (AEP), 55% had no medical, nursing, or patient needs...
July 2017: Journal for Healthcare Quality: Official Publication of the National Association for Healthcare Quality
https://www.readbyqxmd.com/read/28644740/efficacy-of-guided-self-help-behavioural-activation-and-physical-activity-for-depression-a-randomized-controlled-trial
#18
Isabelle Soucy, Martin Provencher, Michelle Fortier, Taylor McFadden
Behavioural activation and physical activity have received empirical support that highlight their efficacy in reducing depression. Even though both behavioural activation and physical activity share the common goal of reactivating the individual, limited research has directly compared these interventions, and more research is required to evaluate their efficacy when offered in low-intensity formats. The present study involves a randomized controlled clinical trial comparing the efficacy of two guided self-help interventions for the treatment of depression: behavioural activation and physical activity...
November 2017: Cognitive Behaviour Therapy
https://www.readbyqxmd.com/read/28574229/the-effects-of-joint-disease-inhibitors-and-other-complications-on-health-related-quality-of-life-among-males-with-severe-haemophilia-a-in-the-united-states
#19
J M Soucie, S D Grosse, A-E-A Siddiqi, V Byams, J Thierry, M M Zack, A Shapiro, N Duncan
INTRODUCTION: Health-related quality of life (HRQoL) is reduced among persons with haemophilia. Little is known about how HRQoL varies with complications of haemophilia such as inhibitors and joint disease. Estimates of preference-based HRQoL measures are needed to model the cost-effectiveness of prevention strategies. AIM: We examined the characteristics of a national sample of persons with severe haemophilia A for associations with two preference-based measures of HRQoL...
July 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28522082/brain-perfusion-during-rapid-eye-movement-sleep-successfully-identifies-amnestic-mild-cognitive-impairment
#20
Pauline Brayet, Dominique Petit, Andrée-Ann Baril, Nadia Gosselin, Jean-François Gagnon, Jean-Paul Soucy, Serge Gauthier, Marie-Jeanne Kergoat, Julie Carrier, Isabelle Rouleau, Jacques Montplaisir
INTRODUCTION: Prodromal markers of Alzheimer's disease (AD) have been derived from wakefulness. However, brain perfusion during rapid-eye movement (REM) sleep could be a sensitive marker of amnestic mild cognitive impairment (aMCI), as activation of REM sleep relies more on the cholinergic system. METHODS: Eight subjects with aMCI, and 16 controls, underwent two single-photon emission computed tomography (SPECT) scans with tracer injected during REM sleep then wakefulness...
June 2017: Sleep Medicine
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