Digital Commons Network^™

First Evidence Of Microplastic Inhalation Among Free-Ranging Small Cetaceans, Miranda K Dziobak, Andreas Fahlman, Randall S Wells, Ryan Takeshita, Cynthia Smith, Austin Gray, John Weinstein, Leslie B Hart

Faculty, Staff and Student Publications

Plastic is a ubiquitous environmental contaminant, resulting in widespread exposure across terrestrial and marine spaces. In the environment, plastics can degrade into microparticles where exposure has been documented in a variety of fauna at all trophic levels. Human epidemiological studies have found relationships between inhaled microplastics and oxidative stress and inflammation. Previous studies of bottlenose dolphins (Tursiops truncatus) have reported prevalent exposure to plasticizing chemicals (e.g., phthalates) as well as particle loads in gastrointestinal tracts, but exposure from inhalation has not yet been studied. The objective of this study was to determine if inhalation is a viable route of microplastic …

Association Of Perceived Neighborhood Air Quality Problems With Attempt To Quit Cigarette Smoking: A Cross-Sectional Study In Texas, Monalisa Chandra, Joel Fokom Domgue, Robert Yu, Sanjay Shete

Faculty, Staff and Student Publications

Background: Cigarette smoking is the major preventable cause of premature deaths in the United States. Attempting to quit smoking is an important step toward smoking cessation. Although it has been studied extensively, limited information on the association between attempts to quit smoking and neighborhood air quality problems is available. Therefore, we examined the association between attempts to quit smoking in the past year and perceived neighborhood air quality problems among adult Texans who smoke.

Methods: In 2018, a cross-sectional multistage area probability design-based survey was administered to collect sociodemographic, behavioral, and health-related information from a representative sample of 2050 Texas …

Endovascular Interventions In Cancer Patients With Compromise Of The Mediastinal Vasculature: A Review, Steven Yevich, Nicolas Cardenas, Rahul Sheth, Joshua Kuban, Milan Patel, Ketan Shah, Koustav Pal, Stephen R Chen, Alda Tam

Faculty, Staff and Student Publications

The mediastinal vasculature can be affected by various etiologies in cancer patients. Both direct and indirect sequela of cancer may result in life-threatening clinical presentations. Tumor growth may cause vessel narrowing and decreased blood flow from either extrinsic mass effect, invasion into the vascular wall, or tumor thrombus within the lumen. In addition, cancer patients are predisposed to indirect sequela to the mediastinal vasculature from an increased risk of benign thromboembolic events, tumor thrombus, or iatrogenic complications during cancer treatments. Benign thrombus may result in partial or complete occlusion of the superior vena cava (SVC) or pulmonary artery. Vascular damage …

From Transcriptomics To Digital Twins Of Organ Function, Jens Hansen, Abhinav R Jain, Philip Nenov, Peter N Robinson, Ravi Iyengar

Faculty, Staff and Student Publications

Cell level functions underlie tissue and organ physiology. Gene expression patterns offer extensive views of the pathways and processes within and between cells. Single cell transcriptomics provides detailed information on gene expression within cells, cell types, subtypes and their relative proportions in organs. Functional pathways can be scalably connected to physiological functions at the cell and organ levels. Integrating experimentally obtained gene expression patterns with prior knowledge of pathway interactions enables identification of networks underlying whole cell functions such as growth, contractility, and secretion. These pathways can be computationally modeled using differential equations to simulate cell and organ physiological dynamics …

Canadian French Translation And Validation Of The Neck Dissection Impairment Index: A Quality Of Life Measure For The Surgical Oncology Population, Michel Khoury, William Guertin, Cameo Hao, Mikhail Saltychev, Tareck Ayad, Eric Bissada, Apostolos Christopoulos, Sami Moubayed, Marie-Jo Olivier, Douglas Chepeha, Stephen Y Lai, Anastasios Maniakas

Faculty, Staff and Student Publications

BACKGROUND: Neck dissections (ND) are a routine procedure in head and neck oncology. Given the postoperative functional impact that some patients experience, it is imperative to identify and track quality of life (QoL) symptomatology to tailor each patient's therapeutic needs. To date, there is no validated French-Canadian questionnaire for this patient-population. We therefore sought to translate and validate the Neck Dissection Impairment Index (NDII) in Canadian French.

METHODS: A 3-phased approach was used. Phase 1: The NDII was translated from English to Canadian French using a "forward and backward" translational technique following international guidelines. Phase 2: A cognitive debriefing session …

Loss Of The Auxiliary Α 2Δ1 Voltage-Sensitive Calcium Channel Subunit Impairs Bone Formation And Anabolic Responses To Mechanical Loading, Madison M Kelly, Karan Sharma, Christian S Wright, Xin Yi, Perla C Reyes Fernandez, Aaron T Gegg, Taylor A Gorrell, Megan L Noonan, Ahmed Baghdady, Jacob A Sieger, Annette C Dolphin, Stuart J Warden, Padmini Deosthale, Lilian I Plotkin, Uma Sankar, Julia M Hum, Alexander G Robling, Mary C Farach-Carson, William R Thompson

Faculty, Staff and Student Publications

Voltage-sensitive calcium channels (VSCCs) influence bone structure and function, including anabolic responses to mechanical loading. While the pore-forming (α1) subunit of VSCCs allows Ca2+ influx, auxiliary subunits regulate the biophysical properties of the pore. The α2δ1 subunit influences gating kinetics of the α1 pore and enables mechanically induced signaling in osteocytes; however, the skeletal function of α2δ1 in vivo remains unknown. In this work, we examined the skeletal consequences of deleting Cacna2d1, the gene encoding α2δ1. Dual-energy X-ray absorptiometry and microcomputed tomography imaging demonstrated that deletion of α2δ1 diminished bone mineral content and density in both male and female …

Image-Guided Deployment And Monitoring Of A Novel Tungsten Nanoparticle-Infused Radiopaque Absorbable Inferior Vena Cava Filter In A Swine Model, Erin Marie San Valentin, Jossana A Damasco, Marvin Bernardino, Karem A Court, Biana Godin, Gino Martin Canlas, Adam Melancon, Gouthami Chintalapani, Megan C Jacobsen, William Norton, Rick R Layman, Natalie Fowlkes, Stephen R Chen, Steven Y Huang, Marites P Melancon

Faculty, Staff and Student Publications

PURPOSE: To improve radiopacity of radiolucent absorbable poly-p-dioxanone (PPDO) inferior vena cava filters (IVCFs) and demostrate their effectiveness in clot-trapping ability.

MATERIALS AND METHODS: Tungsten nanoparticles (WNPs) were incorporated along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of WNPs. The physicochemical and in vitro and in vivo imaging properties of PPDO IVCFs with WNPs with single-polymer PHB (W-P) were compared with those of WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB).

RESULTS: In vitro analyses using PPDO sutures showed enhanced radiopacity with either W-P or W-PB coating, without compromising the …

Non-Homologous End-Joining Genotype, Mrna Expression, And Dna Repair Capacity In Childhood Acute Lymphocytic Leukemia, Chao-Chun Chen, Wen-Shin Chang, Jen-Sheng Pei, Chien-Chung Kuo, Chung-Hsing Wang, Yun-Chi Wang, Pei-Chen Hsu, Jie-Long He, Jian Gu, Da-Tian Bau, Chia-Wen Tsai

Faculty, Staff and Student Publications

Background/aim: The capacity for non-homologous end-joining (NHEJ) repair plays a pivotal role in maintaining genome stability and in carcinogenesis. However, there is little literature on the involvement of NHEJ-related genes in childhood acute lymphocytic leukemia (ALL). Our study aimed to elucidate the impact of polymorphisms of X-ray repair cross-complementing group 4 (XRCC4) (rs6869366, rs2075685, rs2075686, rs28360071, rs3734091, rs28360317, rs1805377), XRCC5 (rs828907, rs11685387, rs9288518), XRCC6 (rs5751129, rs2267437, rs132770, rs132774), XRCC7 rs7003908, and DNA ligase IV (LIG4) rs1805388, on the odds of childhood ALL.

Materials and methods: Genotypes NHEJ-related genes of 266 cases and 266 controls were determined, and the genotype-phenotype correlation …

Establishment Of A Brain Tumor Consortium Of Africa: Advancing Collaborative Research And Advocacy For Brain Tumors In Africa, Lateef A Odukoya, Kwadwo Darko, Francis Zerd, Nathalie C Ghomsi, Gloria Kabare, David O Kamson, Jeanette E Eckel-Passow, Robert B Jenkins, Gaspar J Kitange, Andrea O Akinjo, Kabir B Badmos, Olufemi Bankole, Olufemi E Idowu, Claire Karekezi, Elias Edrick, Chukwuyem Ekhator, Victoria M Katasi, Desmond A Brown, Jason Huse, Henry Llewellyn, Margreth Magambo, Michael Magoha, Umaru Barrie, Advera Ngaiza, Arsene D Nyalundja, Minda Okemwa, Lawrence Osei-Tutu, Bernard Petershie, W Elorm Yevudza, Charles C Anunobi, Liadi Tiamiyu, Gbetoho Fortuné Gankpe, Kashaigili Heronima, Dominique Higgins, Kristin Schroeder, Teddy Totimeh, James Balogun, Beverly Cheserem, Arnold B Etame, Ekokobe Fonkem

Faculty, Staff and Student Publications

Background: Brain tumors represent a significant global health challenge, with rising incidence and mortality impacting individuals worldwide and contributing to cancer-related morbidity and mortality. In Africa, this burden is exacerbated by limited access to advanced diagnostics, treatment options, and multidisciplinary care, compounded by the absence of standardized cancer registration and tumor biobanking. The introduction of molecular diagnostics, as outlined in the 2021 World Health Organization central nervous system (CNS) tumor classification, adds complexity to brain tumor management, particularly in regions with scarce resources.

Methods: To address these issues, the Brain Tumor Consortium for Africa (BTCA) was established in 2023, bringing …

Single-Molecule Fret Analyses Of Nmda Receptors, Ryan J Durham, Vasanthi Jayaraman

Faculty, Staff and Student Publications

Single-molecule fluorescence resonance energy transfer (smFRET) enables the real-time observation of conformational changes in a single protein molecule of interest. These observations are achieved by attaching fluorophores to proteins of interest in a site-specific manner and investigating the FRET between the fluorophores. Here we describe the method wherein the FRET is studied by adhering the protein molecules to a slide using affinity-based interactions and measuring the fluorophores' fluorescence intensity from a single molecule over time. The resulting information can be used to derive distance values for a point-to-point measurement within a protein or to calculate kinetic transition rates between various …

Hormone Regulation Of Corticotropin-Releasing Factor Receptor 1 In The Female Mouse Brain, Rose M De Guzman, Jason S Jacobskind, Zachary J Rosinger, Krystyna A Rybka, Katherine E Parra, Aya L Caballero, Massoud S Sharif, Nicholas J Justice, Damian G Zuloaga

Faculty, Staff and Student Publications

Introduction: Corticotropin-releasing factor receptor 1 (CRFR1) is a key regulator of neuroendocrine and behavioral stress responses. Previous studies have demonstrated that CRFR1 in certain hypothalamic and preoptic brain areas is modified by chronic stress and during the postpartum period in female mice, although the potential hormonal contributors to these changes are unknown.

Methods: This study focused on determining the contributions of hormones associated with stress and the maternal period (glucocorticoids, prolactin, estradiol/progesterone) on CRFR1 levels using a CRFR1-GFP reporter mouse line and immunohistochemistry.

Results: Administration of dexamethasone, an agonist of the glucocorticoid receptor, elevated CRFR1 in the anteroventral periventricular nucleus …

Clinical Classification Of Memory And Cognitive Impairment With Multimodal Digital Biomarkers, Russell Banks, Connor Higgins, Barry R Greene, Ali Jannati, Joyce Gomes-Osman, Sean Tobyne, David Bates, Alvaro Pascual-Leone

Faculty, Staff and Students Publications

Introduction: Early detection of Alzheimer's disease and cognitive impairment is critical to improving the healthcare trajectories of aging adults, enabling early intervention and potential prevention of decline.

Methods: To evaluate multi-modal feature sets for assessing memory and cognitive impairment, feature selection and subsequent logistic regressions were used to identify the most salient features in classifying Rey Auditory Verbal Learning Test-determined memory impairment.

Results: Multimodal models incorporating graphomotor, memory, and speech and voice features provided the stronger classification performance (area under the curve = 0.83; sensitivity = 0.81, specificity = 0.80). Multimodal models were superior to all other single modality and …

Extending Natural Mates In Euclidean 3-Space And Applications To Bertrand Pairs, Yun Myung Oh, Alexander Navarro

Faculty Publications

In Euclidean 3-space, a family of curves, the co-successor, is motivated and then introduced in relation to the natural mate. A complete characterization of co-successors is proved, followed by an application of the co-successor towards describing Bertrand curves and their mates.

Microstructural Organization Of Distributed White Matter Associated With Fine Motor Control In Us Service Members With Mild Traumatic Brain Injury, Benjamin S C Wade, David F Tate, Eamonn Kennedy, Erin D Bigler, Gerald E York, Brian A Taylor, Maya Troyanskaya, Elizabeth S Hovenden, Naomi Goodrich-Hunsaker, Mary R Newsome, Emily L Dennis, Tracy Abildskov, Mary Jo Pugh, William C Walker, Kimbra Kenney, Aaron Betts, Robert Shih, Robert C Welsh, Elisabeth A Wilde

Faculty, Staff and Student Publications

Mild traumatic brain injury (mTBI) is the most common form of brain injury. While most individuals recover from mTBI, roughly 20% experience persistent symptoms, potentially including reduced fine motor control. We investigate relationships between regional white matter organization and subcortical volumes associated with performance on the Grooved Pegboard (GPB) test in a large cohort of military Service Members and Veterans (SM&Vs) with and without a history of mTBI(s). Participants were enrolled in the Long-term Impact of Military-relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium. SM&Vs with a history of mTBI(s) (n = 847) and without mTBI (n = …

Canadian Spine Society: 24th Annual Scientific Conference, Wednesday, February 28 - Saturday, March 2, Fairmont Chateau Whistler, Whistler, Bc, Canada, Antoine Dionne, Majeed Al-Zakri, Hubert Labelle, Julie Joncas, Stefan Parent, Jean-Marc Mac-Thiong, Firoz Miyanji, Baron Lonner, Ali Eren, Patrick Cahill, Peter Newton, Jennifer A Dermott, Liisa Jaakkimainen, Teresa To, Maryse Bouchard, Andrew Howard, David E Lebel, Sarah Hardy, Armaan K Malhotra, Jennifer Dermott, Dilani Thevarajah, Karen D A Mathias, Samuel Yoon, Rajendra Sakhrekar, Dorothy J Kim, Ayesha Hadi, Andrea Doria, Aya Mitani, David Lebel, Karen Mathias, Tracey Bastrom, Amer Samdani, Marjolaine Roy-Beaudry, Marie Beauséjour, Rachelle Imbeault, Justin Dufresne, Jessica Romeo, Holly Livock, Kevin Smit, James Jarvis, Andrew Tice, Vivien K Chan, Robert Cho, Selina Poon, David L Skaggs, Geoffrey K Shumilak, Brett Rocos, Juan P Sardi, Anastasios Charalampidis, Jeff Gum, Stephen J Lewis, Peter S Tretiakov, Oluwatobi Onafowokan, Jamshaid Mir, Ankita Das, Tyler Williamson, Pooja Dave, Bailey Imbo, Jordan Lebovic, Pawel Jankowski, Peter G Passias, Stephen Lewis, Yousef Aljamaan, Lawrence G Lenke, Justin Smith, Vishal P Varshney, Ramesh Sahjpaul, Scott Paquette, Jill Osborn, Rémi Pelletier-Roy, Michael Asmussen, Manjot Birk, Taryn Ludwig, Fred Nicholls, Ariel Zohar, Janneke Loomans, Ferran Pellise, Justin S Smith, So Kato, Zeeshan Sardar, Lawrence Lenke, Aazad Abbas, Jay Toor, Gurjovan Sahi, Dusan Kovacevic, Johnathan Lex, Raja Rampersaud, Anthony V Perruccio, Nizar Mahomed, Mayilee Canizares, Maroun Rizkallah, Michel Alexandre Lebreton, Ghassan Boubez, Jesse Shen, Fidaa Alshakfa, Yousef Kamel, Galil Osman, Zhi Wang, Nikolaus Koegl, Brandon Herrington, Renan R Fernandes, Jennifer C Urquhart, Yoga R Rampersaud, Chris S Bailey, Ramtin Hakimjavadi, Tinghua Zhang, Zachary Devries, Eugene K Wai, Stephen P Kingwell, Alexandra Stratton, Eve Tsai, Philippe Phan, Noah Fine, Laura Stone, Mohit Kapoor, Alexandre Chênevert, Sonia Bédard, Greg Mcintosh, Julien Goulet, Jérome Couture, Csorn Investigators, Bernard Larue, Brent Rosenstein, Meaghan Rye, Alexa Roussac, Neda Naghdi, Luciana G Macedo, James Elliott, Richard Demont, Michael H Weber, Véronique Pepin, Geoffrey Dover, Maryse Fortin, Edisond Florial, Aditya Raj, Prarthan Amin, Yoga Raja Rampersaud, Abdullah A S M Alduwaisan, Kim Phan, Stephen Kingwell, Eugene Wai, Jeffrey Hebert, Sarah Nowell, Niels Wedderkopp, Amanda Vandewint, Neil Manson, Edward Abraham, Christopher Small, Najmedden Attabib, Erin Bigney, Michael Craig, Abdul Al-Shawwa, Kalum Ost, Saswati Tripathy, Nathan Evaniew, Bradley Jacobs, David Cadotte, Nicolas Dea, Jefferson R Wilson, Christopher S Bailey, Y Raja Rampersaud, W Bradley Jacobs, Philippe Phan Phan, Andrew Nataraj, David W Cadotte, Kenneth C Thomas, Jerome Paquet, Sean D Christie, Hamilton Hall, Charles G Fisher, Eva Y Liu, Amit R L Persad, Nathan Baron, Daryl Fourney, Husain Shakil, Jingyi Huang, Nader Fallah, Charlotte Dandurand, Csorn Investigators, Thamer Alfawaz, Tinghua Zhang, Alexandra Stratton, Eve Tsai, Eugene Wai, Stephen Kingwell, Zhi Wang, Philippe Phan, Csorn Investigators, Julien Francisco Zaldivar-Jolissaint, Raphaële Charest-Morin, Greg Mcintosh, Michael G Fehlings, Karlo M Pedro, Mohammed Ali Alvi, Jessica C W Wang, Raphaële Charest-Morin, Nicolas Dea, Charles Fisher, Marcel Dvorak, Brian Kwon, Tamir Ailon, Scott Paquette, John Street, Charlotte Dandurand, Rohail Mumtaz, Khaled Skaik, Eugene K Wai, Stephen Kingwell, Alexandra Stratton, Eve Tsai, Philippe Tran Nhut Phan, Zhi Wang, Csorn Investigators, Ragavan Manoharan, Greg Mcintosh, Yoga R Rampersaud, Jenna Smith-Forrester, Joanne E Douglas, Evan Nemeth, Jacob Alant, Sean Barry, Andrew Glennie, William Oxner, Lutz Weise, Sean Christie, Eva Y Liu, Amit R L Persad, Sabahat Saeed, Patrick Toyota, Jack Su, Braeden Newton, Nicole Coote, Daryl Fourney, Maria S Rachevits, Helen Razmjou, Susan Robarts, Albert Yee, Joel Finkelstein, Alysa Almojuela, Frederick Zeiler, Sarvesh Logsetty, Perry Dhaliwal, Mark Abdelnour, Yuxin Zhang, Eugene Wai, Stephen P Kingwell, Alexandra Stratton, Eve Tsai, Philippe T Phan, Csorn Investigators, Taylor A Smith, Christopher Small, Erin Bigney, Eden Richardson, Jillian Kearney, Neil Manson, Edward Abraham, Najmedden Attabib, Michael Bond, Stephan Dombrowski, Gwyneth Price, Jose Manuel García-Moreno, Jeffrey Hebert, Steven Qiu, Vithushan Surendran, Victoria Shi Emily Cheung, Sophie Ngana, Muhammad A Qureshi, Sunjay V Sharma, Markian Pahuta, Daipayan Guha, Ahmad Essa, Husain Shakil, Armaan Malhotra, James Byrne, Jetan Badhiwala, Eva Yuan, Yingshi He, Andrew Jack, Francois Mathieu, Jefferson R Wilson, Christopher D Witiw, Husain Shakil, Armaan K Malhotra, Eva Yuan, Christopher W Smith, Erin M Harrington, Rachel H Jaffe, Alick P Wang, Karim Ladha, Avery B Nathens, Jefferson R Wilson, Christopher D Witiw, Ryan V Sandarage, Ahmad Galuta, Eve C Tsai, Naama Rotem-Kohavi, Marcel F Dvorak, Jijie Xu, Nader Fallah, Zeina Waheed, Melody Chen, Nicolas Dea, Nathan Evaniew, Vanessa Noonan, Brian Kwon, Brian K Kwon, Toluyemi Malomo, Raphaële Charest-Morin, Scott Paquette, Tamir Ailon, Charlotte Dandurand, John Street, Charles G Fisher, Nicolas Dea, Manraj Heran, Marcel Dvorak, Rachael Jaffe, Peter Coyte, Brian Chan, Armaan Malhotra, Rebecca Hancock-Howard, Jefferson Wilson, Christopher Witiw, Newton Cho, Jordan Squair, Viviana Aureli, Nicholas James, Lea Bole-Feysot, Inssia Dewany, Nicolas Hankov, Laetitia Baud, Anna Leonhartsberger, Kristina Sveistyte, Michael Skinnider, Matthieu Gautier, Katia Galan, Maged Goubran, Jimmy Ravier, Frederic Merlos, Laura Batti, Stéphane Pagès, Nadia Bérard, Nadine Intering, Camille Varescon, Stefano Carda, Kay Bartholdi, Thomas Hutson, Claudia Kathe, Michael Hodara, Mark Anderson, Bogdan Draganski, Robin Demesmaeker, Leonie Asboth, Quentin Barraud, Jocelyne Bloch, Grégoire Courtine, Sean D Christie, Ryan Greene, Mustafa Nadi, Jacob Alant, Sean Barry, Andrew Glennie, Bill Oxner, Lutz Weise, Lisa Julien, Clara Lownie, Marcel F Dvorak, Cumhur F C Öner, Charlotte Dandurand, Alexander Joeris, Klaus Schnake, Mark Phillips, Alexander R Vaccaro, Richard Bransford, Eugen Cezar Popescu, Mohammed El-Sharkawi, Shanmuganathan Rajasekaran, Lorin M Benneker, Greg D Schroeder, Jin W Tee, John France, Jérôme Paquet, Richard Allen, William F Lavelle, Emiliano Vialle, Nicolas Dea, Antoine Dionne, David Magnuson, Andréane Richard-Denis, Yvan Petit, Francis Bernard, Dorothy Barthélémy, Jean-Marc Mac-Thiong, Lukas Grassner, Daniel Garcia-Ovejero, Evelyn Beyerer, Orpheus Mach, Iris Leister, Doris Maier, Ludwig Aigner, Angel Arevalo-Martin, Mark Alexander Maclean, Antoinette Charles, Miltiadis Georgiopoulos, Raphaële Charest-Morin, Rory Goodwin, Michael Weber, Emile Brouillard, Andréane Richard-Denis, Antoine Dionne, Ismail Laassassy, Paul Khoueir, Étienne Bourassa-Moreau, Gilles Maurais, Jean-Marc Mac-Thiong, Julien Francisco Zaldivar-Jolissaint, Nicolas Dea, Aysha Allard Brown, Kitty So, Neda Manouchehri, Megan Webster, Jay Ethridge, Audrey Warner, Avril Billingsley, Rochelle Newsome, Kirsten Bale, Andrew Yung, Mehara Seneviratne, Jimmy Cheng, Jing Wang, Shenani Basnayake, Femke Streijger, Manraj Heran, Piotr Kozlowski, Brian K Kwon, Jeff D Golan, Lior M Elkaim, Qais Alrashidi, Miltiadis Georgiopoulos, Oliver J Lasry, Drew A Bednar, Alyson Love, Soroush Nedaie, Pranjan Gandhi, Prarthan C Amin, Aditya Raj, Greg Mcintosh, Christopher J Neilsen, Ganesh Swamy, Raja Rampersaud, Amanda Vandewint, Y Raja Rampersaud, Jeffrey Hebert, Erin Bigney, Neil Manson, Najmedden Attabib, Chris Small, Eden Richardson, Jill Kearney, Edward Abraham, Raja Rampersaud, Aditya Raj, Nanadan Marathe, Greg Mcintosh, Manmeet Dhiman, Taylor J Bader, David Hart, Ganesh Swamy, Neil Duncan, Manmeet Dhiman, Taylor J Bader, Dragana Ponjevic, John R Matyas, David Hart, Ganesh Swamy, Neil Duncan, Connor P O'Brien, Jeffrey Hebert, Erin Bigney, Jillian Kearney, Eden Richardson, Edward Abraham, Neil Manson, Najmedden Attabib, Christopher Small, Luke Larochelle, Gabriella Rivas, James Lawrence, Robert Ravinsky, Dorothy Kim, Jennifer Dermott, Aya Mitani, Andrea Doria, Andrew Howard, David Lebel, Jennifer A Dermott, Lily S Switzer, Dorothy J Kim, David E Lebel, Chanelle Montpetit, Nicolas Vaillancourt, Brent Rosenstein, Maryse Fortin, Emma Nadler, Jennifer Dermott, Dorothy Kim, David E Lebel, Daniel Wolfe, Brent Rosenstein, Maryse Fortin, Daniel Wolfe, Geoffrey Dover, Mathieu Boily, Maryse Fortin, Husain Shakil, Armaan K Malhotra, Jetan H Badhiwala, Vishu Karthikeyan, Yingshi He, Michael G Fehlings, Arjun Sahgal, Nicolas Dea, Alex Kiss, Christopher D Witiw, Donald R Redelmeier, Jefferson R Wilson, Marco Pérez Caceres, Véronique Freire, Jesse Shen, Fidaa Al-Shakfa, Omer Ahmed, Zhi Wang, William Chu Kwan, Scott L Zuckerman, Charles G Fisher, Ilya Laufer, Dean Chou, John E O'Toole, Markus Schultheiss, Michael H Weber, Daniel M Sciubba, Markian Pahuta, John H Shin, Michael G Fehlings, Anne Versteeg, Matthew L Goodwin, Stefano Boriani, Chetan Bettegowda, Aron Lazary, Alessandro Gasbarrini, Jeremy J Reynolds, Jorrit-Jan Verlaan, Arjun Sahgal, Ziya L Gokaslan, Laurence D Rhines, Nicolas Dea, Van Tri Truong, The Khanh Dang, Galil Osman, Fidaa Al-Shakfa, Danielle Boule, Jesse Shen, Zhi Wang, Maroun Rizkallah, Ghassan Boubez, Jesse Shen, Philippe Phan, Fidaa Alshakfa, Danielle Boule, Celine Belguendouz, Rayane Kafi, Sung-Joo Yuh, Daniel Shedid, Zhi Wang, Zhi Wang, Jesse Shen, Ghassan Boubez, Fidaa Alshakfa, Daniele Boulé, Celine Belguendouz, Rayane Kafi, Philippe Phan, Daniel Shedid, Sung-Joo Yuh, Maroun Rizkallah, Yan Gabriel Morais David Silva, Luis Weber, Felipe Leão, Ahmad Essa, Armaan K Malhotra, Husain Shakil, James Byrne, Jetan Badhiwala, Avery B Nathens, Tej D Azad, Eva Yuan, Yingshi He, Andrew S Jack, Francois Mathieu, Jefferson R Wilson, Christopher D Witiw, Michael Craig, Nick Guenther, Jan Valosek, Maxime Bouthillier, Naga Karthik Enamundram, Naama Rotem-Kohavi, Suzanne Humphreys, Sean Christie, Michael Fehlings, Brian Kwon, Jean-Marc Mac-Thiong, Philippe Phan, Jerome Paquet, Mathieu Guay-Paquet, Julien Cohen-Adad, David Cadotte, Antoine Dionne, Jean-Marc Mac-Thiong, Heather Hong, Dilnur Kurban, Jijie Xu, Dorothy Barthélémy, Sean Christie, Daryl Fourney, Gary Linassi, Adalberto Loyola Sanchez, Jérôme Paquet, Vidya Sreenivasan, Andrea Townson, Eve C Tsai, Andréane Richard-Denis, William Chu Kwan, Pedram Laghaei, Harsh Kahlon, Tamir Ailon, Raphael Charest-Morin, Charlotte Dandurand, Scott Paquette, Nicholas Dea, John Street, Charles G Fisher, Marcel F Dvorak, Brian K Kwon, Jérémie Thibault, Antoine Dionne, Mohamed Al-Sofyani, Rémi Pelletier-Roy, Andréane Richard-Denis, Étienne Bourassa-Moreau, Jean-Marc Mac-Thiong, Maxime Bouthillier, Jan Valošek, Naga Karthik Enamundram, Mathieu Guay-Paquet, Nick Guenther, Naama Rotem-Kohavi, Suzanne Humphreys, Sean Christie, Michael Fehlings, Brian K Kwon, Jean Marc Mac-Thiong, Philippe Phan, David Cadotte, Julien Cohen-Adad, Luke Reda, Colton Kennedy, Stephanie Stefaniuk, Parvin Eftekhar, Larry Robinson, Cathy Craven, Jana Dengler, Colton Kennedy, Luke Reda, Stephanie Stefaniuk, Parvin Eftekhar, Larry Robinson, Cathy Craven, Jana Dengler, Maryam Rezaeezadeh Roukerd, Maitreya Patel, Eve Tsai, Ahmad Galuta, Sasi Jagadeesan, Ryan Vimukthie Sandarage, Philippe Phan, Wojtek Michalowski, William Van Woensel, Khushdeep Vig, Jillian Kazley, Abdul Arain, Gabriella Rivas, Robert Ravinsky, James Lawrence, Shaurya Gupta, Jibrahn Patel, Isaac Turkstra, Kirill Pustovetov, Victor Yang, W Bradley Jacobs, Gonzalo Mariscal, Christopher D Witiw, James S Harrop, Ahmed Essa, Christopher D Witiw, Gonzalo Mariscal, W Bradley Jacobs, James S Harrop, Ahmed Essa, Jin Tong Du, Ahmed Cherry, Rajesh Kumar, Nadia Jaber, Michael Fehlings, Albert Yee, Siril Teja Dukkipati, Mark Driscoll, Elizabeth Byers, Justin L Brown, Michelle Gallagher, James Sugar, Shannon Rockall, James Hektner, Scott Donia, John Chernesky, Vanessa K Noonan, Aaron A Varga, Flo Slomp, Emily Thiessen, Nataliya Lastivnyak, Linda Slater Maclean, Vanessa Ritchie, Aaron Hockley, Lutz M Weise, Christine Potvin, Peggy Flynn, Sean Christie, Isaac Turkstra, Bruno Oppermann, Marcelo Oppermann, Shaurya Gupta, Jibrahn Patel, Kirill Pustovetov, Kenneth Lee, Chaoliang Chen, Mohammadmahdi Rastgarjazi, Victor Yang, Sarah Hardy, Samuel Strantzas, Alison Anthony, Jennifer Dermott, Mike Vandenberk, Samer Hassan, David Lebel, Yan Gabriel Morais David Silva, Bernard Larue, Jerome Couture, Newton Pimenta, Jocelyn Blanchard, Alexandre Chenevert, Julien Goulet, Ryan Greene, Sean D Christie, Amanda Hall, Holly Etchegary, Alwalaa Althagafi, Jae Han, Ryan Greene, Sean Christie, Gwynedd Pickett, Christopher Witiw, James Harrop, W Bradley Jacobs, Gonzalo Mariscal, Ahmed Essa, W Bradley Jacobs, Gonzalo Mariscal, Christopher Witiw, James S Harrop, Ahmed Essa, Timothy Lasswell, Parham Rasoulinejad, Richard Hu, Chris Bailey, Fawaz Siddiqi, Abdulrahman Hamdoon, Mohamed Amin Soliman, Juhi Maraj, Deven Jhawar, Balraj Jhawar, Kirsten A Schuler, Lindsay D Orosz, Tarek Yamout, Brandon J Allen, Wondwossen T Lerebo, Rita T Roy, Thomas C Schuler, Christopher R Good, Colin M Haines, Ehsan Jazini, Kalum J Ost, Abdul Al-Shawwa, David Anderson, Nathan Evaniew, Bradley W Jacobs, Peter Lewkonia, Fred Nicholls, Paul T Salo, Kenneth C Thomas, Michael Yang, David Cadotte, Mohamed Sarraj, Nathasha Rajapaksege, Nicolas Dea, Nathan Evaniew, Greg Mcintosh, Markian Pahuta, Hani Nouran Alharbi, Khaled Skaik, Eugene K Wai, Stephen Kingwell, Alexandra Stratton, Eve Tsai, Philippe Tran Nhut Phan, Zhi Wang, Csorn Investigators, Julien Francisco Zaldivar-Jolissaint, Sara Gustafson, Ian Polyzois, Trevor Gascoyne, Michael Goytan, Drew Alexander Bednar, Mohamed Sarra, Brett Rocos, Juan P Sardi, Anastasios Charalampidis, Jeff Gum, Stephen J Lewis, Ravi Ghag, Samuel Kirk, Otis Shirley, Jeffrey Bone, Andrew Morrison, Firoz Miyanji, Amit Parekh, Ethan Sanders, Manjot Birk, Fred Nicholls, Kevin Smit, Holly Livock, Jessica Romeo, James Jarvis, Andrew Tice, Sofía Frank, Hubert Labelle, Stephan Parent, Soraya Barchi, Julie Joncas, Jean-Marc Mac-Thiong, Jérémie Thibault, Julie Joncas, Soraya Barchi, Stefan Parent, Marie Beausejour, Jean-Marc Mac-Thiong, Antoine Dionne, Jean-Marc Mac-Thiong, Stefan Parent, Jesse Shen, Julie Joncas, Soraya Barchi, Hubert Labelle, Manjot S Birk, Fred Nicholls, Rémi Pelletier-Roy, Ethan Sanders, Stephen Lewis, Yousef Aljamaan, Lawrence G Lenke, Justin Smith, Zeeshan Sardar, Elen Mullaj, David Lebel, Jennifer Dermott, Natasha Bath, Karen Mathias, Deepa Kattail, Ariel Zohar, Janneke Loomans, Ferran Pellise, Justin S Smith, So Kato, Zeeshan Sardar, Lawrence Lenke, Stephen J Lewis, Taylor J Bader, Manmeet Dhiman, David Hart, Neil Duncan, Paul Salo, Ganesh Swamy, Stephen Joel Lewis, Peyton Lloyd Lawrence, Justin Smith, Ferran Pellise, Zeeshan Sardar, Peyton Lloyd Lawrence, Stephen Joel Lewis, Justin Smith, Ferran Pellise, Zeeshan Sardar, Jordan J Levett, Abdulrhman Alnasser, Uri Barak, Lior M Elkaim, Thien Sa Hoang, Naif M Alotaibi, Daipayan Guha, Isaac L Moss, Alexander G Weil, Michael H Weber, Phillip De Muelenaere, Kashif Parvez, John Sun, Olivia C Iorio, Brent Rosenstein, Neda Naghdi, Maryse Fortin, Felicia Manocchio, Ran Ankory, Lisa Stallwood, Henry Ahn, Hamza Mahdi, Abdul Naeem, Deven Jhawar, Milad Moradi, Balraj Jhawar, Steven Qiu, Vithushan Surendran, Victoria Shi, Emily Cheung, Sophie Ngana, Muhammad A Qureshi, Sunjay V Sharma, Markian Pahuta, Daipayan Guha

Faculty, Staff and Student Publications

No abstract provided.

Failure To Mate Enhances Investment In Behaviors That May Promote Mating Reward And Impairs The Ability To Cope With Stressors Via A Subpopulation Of Neuropeptide F Receptor Neurons, Julia Ryvkin, Liora Omesi, Yong-Kyu Kim, Mali Levi, Hadar Pozeilov, Lital Barak-Buchris, Bella Agranovich, Ifat Abramovich, Eyal Gottlieb, Avi Jacob, Dick R Nässel, Ulrike Heberlein, Galit Shohat-Ophir

Faculty, Staff and Student Publications

Living in dynamic environments such as the social domain, where interaction with others determines the reproductive success of individuals, requires the ability to recognize opportunities to obtain natural rewards and cope with challenges that are associated with achieving them. As such, actions that promote survival and reproduction are reinforced by the brain reward system, whereas coping with the challenges associated with obtaining these rewards is mediated by stress-response pathways, the activation of which can impair health and shorten lifespan. While much research has been devoted to understanding mechanisms underlying the way by which natural rewards are processed by the reward …

Incorporating Variable Rbe In Impt Optimization For Ependymoma, Hadis Moazami Goudarzi, Gino Lim, David Grosshans, Radhe Mohan, Wenhua Cao

Faculty, Staff and Student Publications

PURPOSE: To study the dosimetric impact of incorporating variable relative biological effectiveness (RBE) of protons in optimizing intensity-modulated proton therapy (IMPT) treatment plans and to compare it with conventional constant RBE optimization and linear energy transfer (LET)-based optimization.

METHODS: This study included 10 pediatric ependymoma patients with challenging anatomical features for treatment planning. Four plans were generated for each patient according to different optimization strategies: (1) constant RBE optimization (ConstRBEopt) considering standard-of-care dose requirements; (2) LET optimization (LETopt) using a composite cost function simultaneously optimizing dose-averaged LET (LET

RESULTS: We found that the LETopt plans consistently achieved increased LET in …

Predicting Suicidality In Late-Life Depression By 3d Convolutional Neural Network And Cross-Sample Entropy Analysis Of Resting-State Fmri, Chemin Lin, Chih-Mao Huang, Wei Chang, You-Xun Chang, Ho-Ling Liu, Shu-Hang Ng, Huang-Li Lin, Tatia Mei-Chun Lee, Shwu-Hua Lee, Shun-Chi Wu

Faculty, Staff and Student Publications

BACKGROUND: Predicting suicide is a pressing issue among older adults; however, predicting its risk is difficult. Capitalizing on the recent development of machine learning, considerable progress has been made in predicting complex behavior such as suicide. As depression remained the strongest risk for suicide, we aimed to apply deep learning algorithms to identify suicidality in a group with late-life depression (LLD).

METHODS: We enrolled 83 patients with LLD, 35 of which were non-suicidal and 48 were suicidal, including 26 with only suicidal ideation and 22 with past suicide attempts, for resting-state functional magnetic resonance imaging (MRI). Cross-sample entropy (CSE) analysis …

Insights Into The Assembly And Regulation Of The Bacterial Divisome, Todd A Cameron, William Margolin

Faculty, Staff and Student Publications

The ability to split one cell into two is fundamental to all life, and many bacteria can accomplish this feat several times per hour with high accuracy. Most bacteria call on an ancient homologue of tubulin, called FtsZ, to localize and organize the cell division machinery, the divisome, into a ring-like structure at the cell midpoint. The divisome includes numerous other proteins, often including an actin homologue (FtsA), that interact with each other at the cytoplasmic membrane. Once assembled, the protein complexes that comprise the dynamic divisome coordinate membrane constriction with synthesis of a division septum, but only after overcoming …

Evaluation Of Ion Chamber Response For Applications In Electron Flash Radiotherapy, Kevin Liu, Shannon Holmes, Brian Hooten, Emil Schüler, Sam Beddar

Faculty, Staff and Student Publications

Ion chambers are required for calibration and reference dosimetry applications in radiation therapy (RT). However, exposure of ion chambers in ultra-high dose rate (UHDR) conditions pertinent to FLASH-RT leads to severe saturation and ion recombination, which limits their performance and usability. The purpose of this study was to comprehensively evaluate a set of commonly used commercially available ion chambers in RT, all with different design characteristics, and use this information to produce a prototype ion chamber with improved performance in UHDR conditions as a first step toward ion chambers specific for FLASH-RT. The Advanced Markus and Exradin A10, A26, and …

Quantifying The Effect Of 4-Dimensional Computed Tomography-Based Deformable Dose Accumulation On Representing Radiation Damage For Patients With Locally Advanced Non-Small Cell Lung Cancer Treated With Standard-Fractionated Intensity-Modulated Radiation Therapy, Yulun He, Guillaume Cazoulat, Carol Wu, Stina Svensson, Lusmeralis Almodovar-Abreu, Bastien Rigaud, Emma Mccollum, Christine Peterson, Zachary Wooten, Dong Joo Rhee, Peter Balter, Julianne Pollard-Larkin, Carlos Cardenas, Laurence Court, Zhongxing Liao, Radhe Mohan, Kristy Brock

Faculty, Staff and Student Publications

Purpose: The aim of this study was to investigate the dosimetric and clinical effects of 4-dimensional computed tomography (4DCT)-based longitudinal dose accumulation in patients with locally advanced non-small cell lung cancer treated with standard-fractionated intensity-modulated radiation therapy (IMRT).

Methods and materials: Sixty-seven patients were retrospectively selected from a randomized clinical trial. Their original IMRT plan, planning and verification 4DCTs, and ∼4-month posttreatment follow-up CTs were imported into a commercial treatment planning system. Two deformable image registration algorithms were implemented for dose accumulation, and their accuracies were assessed. The planned and accumulated doses computed using average-intensity images or phase images were …

Investigation Of Autosegmentation Techniques On T2-Weighted Mri For Off-Line Dose Reconstruction In Mr-Linac Workflow For Head And Neck Cancers, Brigid A Mcdonald, Carlos E Cardenas, Nicolette O'Connell, Sara Ahmed, Mohamed A Naser, Kareem A Wahid, Jiaofeng Xu, Dan Thill, Raed J Zuhour, Shane Mesko, Alexander Augustyn, Samantha M Buszek, Stephen Grant, Bhavana V Chapman, Alexander F Bagley, Renjie He, Abdallah S R Mohamed, John Christodouleas, Kristy K Brock, Clifton D Fuller

Faculty, Staff and Student Publications

Background: In order to accurately accumulate delivered dose for head and neck cancer patients treated with the Adapt to Position workflow on the 1.5T magnetic resonance imaging (MRI)-linear accelerator (MR-linac), the low-resolution T2-weighted MRIs used for daily setup must be segmented to enable reconstruction of the delivered dose at each fraction.

Purpose: In this pilot study, we evaluate various autosegmentation methods for head and neck organs at risk (OARs) on on-board setup MRIs from the MR-linac for off-line reconstruction of delivered dose.

Methods: Seven OARs (parotid glands, submandibular glands, mandible, spinal cord, and brainstem) were contoured on 43 images by …

Predicting Suicidality In Late-Life Depression By 3d Convolutional Neural Network And Cross-Sample Entropy Analysis Of Resting-State Fmri, Chemin Lin, Chih-Mao Huang, Wei Chang, You-Xun Chang, Ho-Ling Liu, Shu-Hang Ng, Huang-Li Lin, Tatia Mei-Chun Lee, Shwu-Hua Lee, Shun-Chi Wu

Faculty, Staff and Student Publications

Background: Predicting suicide is a pressing issue among older adults; however, predicting its risk is difficult. Capitalizing on the recent development of machine learning, considerable progress has been made in predicting complex behavior such as suicide. As depression remained the strongest risk for suicide, we aimed to apply deep learning algorithms to identify suicidality in a group with late-life depression (LLD).

Methods: We enrolled 83 patients with LLD, 35 of which were non-suicidal and 48 were suicidal, including 26 with only suicidal ideation and 22 with past suicide attempts, for resting-state functional magnetic resonance imaging (MRI). Cross-sample entropy (CSE) analysis …

Multicenter Randomized Controlled Trial Of Exercise In Aortic Dissection Survivors: Rationale, Design, And Initial Hemodynamic Data, Yasmin A Toy, Kayla N House, Leslie M Boyer, Jennifer L Mcnamara, Marion A Hofmann-Bowman, Kim A Eagle, Michelle S Lim, Alan C Braverman, Siddharth K Prakash

Faculty, Staff and Student Publications

Aims: There are currently no evidence-based guidelines for exercise after thoracic aortic dissection (TAD), leading to highly variable recommendations that frequently lead patients to restrict their physical activities. This multicenter randomized controlled trial was intended to evaluate the safety and efficacy of a moderate intensity guided exercise program for TAD survivors.

Methods: Participants were eligible if they had a Type A or Type B dissection at least 90 days before enrollment and could attend two in-person study visits. The guided exercise circuit consisted of six aerobic, isotonic, or isometric exercises that participants continued at home with virtual follow-up sessions. The …

The Feasibility Of Health Professional Student Delivered Social Visits For Stroke Survivors With Loneliness, Jason Burnett, Jordan Broussard, Bronson Ciavarra, Louisa Smitherman, Mary Li, Emma Thames, Sharon Zachariah, Grace Kim, Rachel Pijnnaken, Hannah Zeller, John Halphen, Sean I Savitz, Namkee Choi, Jennifer E S Beauchamp

Faculty, Staff and Student Publications

Objectives: To examine the feasibility of a social phone call program to address social isolation and loneliness in stroke survivors.

Materials and methods: We paired 14 lonely community-living stroke survivors with 14 health professional students for 6-weekly unstructured social phone calls. Feasibility data and measures of social isolation, loneliness and other psychosocial metrics were collected pre- and post-intervention. Students journaled following each unstructured call to capture the informal conversation and their sentiments.

Results: Sixty-two percent of the targeted sample was interested. Fourteen eligible and interested participants were enrolled. The 13 (93%) participants completing all calls and surveys were an average …