Medical Specialties Commons^™

Comparison Of Four Protocols For In Vitro Differentiation Of Human Embryonic Stem Cells Into Trophoblast Lineages By Bmp4 And Dual Inhibition Of Activin/Nodal And Fgf2 Signaling, Zahra Anvar, Imen Chakchouk, Momal Sharif, Sangeetha Mahadevan, Li Su, Swathi Anikar, Fatemeh Alavi Naini, Alloysius Budi Utama, Ignatia B Van Den Veyver

Faculty, Staff and Students Publications

Human embryonic stem cells (hESCs) cultured in media containing bone morphogenic protein 4 (BMP4; B) differentiate into trophoblast-like cells. Supplementing media with inhibitors of activin/nodal signaling (A83-01) and of fibroblast growth factor 2 (PD173074) suppresses mesoderm and endoderm formation and improves specification of trophoblast-like lineages, but with variable effectiveness. We compared differentiation in four BMP4-containing media: mTeSR1-BMP4 only, mTeSR1-BAP, basal medium with BAP (basal-BAP), and a newly defined medium, E7-BAP. These media variably drive early differentiation towards trophoblast-like lineages with upregulation of early trophoblast markers CDX2 and KRT7 and downregulation of pluripotency markers (OCT4 and NANOG). As expected, based on …

Optical Coherence Elastography Measures The Biomechanical Properties Of The Ex Vivo Porcine Cornea After Lasik, Achuth Nair, Fernando Zvietcovich, Manmohan Singh, Mitchell P Weikert, Salavat R Aglyamov, Kirill V Larin

Faculty, Staff and Students Publications

SIGNIFICANCE: The biomechanical impact of refractive surgery has long been an area of investigation. Changes to the cornea structure cause alterations to its mechanical integrity, but few studies have examined its specific mechanical impact.

AIM To quantify how the biomechanical properties of the cornea are altered by laser assisted in situ keratomileusis (LASIK) using optical coherence elastography (OCE) in ex vivo porcine corneas.

APPROACH: Three OCE techniques, wave-based air-coupled ultrasound (ACUS) OCE, heartbeat (Hb) OCE, and compression OCE were used to measure the mechanical properties of paired porcine corneas, where one eye of the pair was left untreated, and the …

Moving From Conventional To Adaptive Risk Stratification For Oropharyngeal Cancer, Vlad C Sandulache, R Parker Kirby, Stephen Y Lai

Faculty, Staff and Students Publications

Oropharyngeal cancer (OPC) poses a complex therapeutic dilemma for patients and oncologists alike, made worse by the epidemic increase in new cases associated with the oncogenic human papillomavirus (HPV). In a counterintuitive manner, the very thing which gives patients hope, the high response rate of HPV-associated OPC to conventional chemo-radiation strategies, has become one of the biggest challenges for the field as a whole. It has now become clear that for ~30-40% of patients, treatment intensity could be reduced without losing therapeutic efficacy, yet substantially diminishing the acute and lifelong morbidity resulting from conventional chemotherapy and radiation. At the same …

Relationship Between Clinical Measures Of Hearing And Clinical Measures Of Vestibular Function, Helen S Cohen, Haleh Sangi-Haghpeykar, J Connor Sullivan, Nathan Silver, Liam D Ferreira, Jen Li Dong, Alex D Sweeney, Angela S Peng

Faculty, Staff and Students Publications

PURPOSE: Patients often have basic audiometry (BA) but not objective diagnostic tests of the vestibular system (VNG) when complaining of symptoms of a vestibular disorder. The relationship of BA results to VNG results is unknown. This study sought to determine if BA scores are related to impaired VNG scores.

MATERIALS AND METHODS: We reviewed electronic medical records at a tertiary care center, for patients seen between 2015 and 2021 who had had both a BA and a VNG (n = 651). BA subtests were pure tone averages, word recognition, and tympanogram. VNG subtests were cervical vestibular evoked myogenic potentials, Dix-Hallpike …

Epigallocatechin Gallate Regulates The Myeloid-Specific Transcription Factor Pu1 In Macrophages, Manjula Karpurapu, Kavita Kumari Kakarala, Sangwoon Chung, Yunjuan Nie, Amritendu Koley, Patrick Dougherty, John W Christman

Faculty, Staff and Student Publications

Our previous research demonstrated that PU.1 regulates expression of the genes involved in inflammation in macrophages. Selective knockdown of PU.1 in macrophages ameliorated LPS-induced acute lung injury (ALI) in bone marrow chimera mice. Inhibitors that block the transcriptional activity of PU.1 in macrophages have the potential to mitigate the pathophysiology of LPS-induced ALI. However, complete inactivation of PU.1 gene disrupts normal myelopoiesis. Although the green tea polyphenol Epigallocatechin gallate (EGCG) has been shown to regulate inflammatory genes in various cell types, it is not known if EGCG alters the transcriptional activity of PU.1 protein. Using Schrodinger Glide docking, we have …

Suppression Of Il-1Β Promotes Beneficial Accumulation Of Fibroblast-Like Cells In Atherosclerotic Plaques In Clonal Hematopoiesis, Trevor P Fidler, Andrew Dunbar, Eunyoung Kim, Brian Hardaway, Jessica Pauli, Chenyi Xue, Sandra Abramowicz, Tong Xiao, Kavi O'Connor, Nadja Sachs, Nan Wang, Lars Maegdefessel, Ross Levine, Muredach Reilly, Alan R Tall

Faculty, Staff and Student Publications

Clonal hematopoiesis (CH) is an independent risk factor for atherosclerotic cardiovascular disease. Murine models of CH suggest a central role of inflammasomes and IL-1β in accelerated atherosclerosis and plaque destabilization. Here we show using single-cell RNA sequencing in human carotid plaques that inflammasome components are enriched in macrophages, while the receptor for IL-1β is enriched in fibroblasts and smooth muscle cells (SMCs). To address the role of inflammatory crosstalk in features of plaque destabilization, we conducted SMC fate mapping in Ldlr-/- mice modeling Jak2VF or Tet2 CH treated with IL-1β antibodies. Unexpectedly, this treatment minimally affected SMC differentiation, …

Microbiota Restoration Therapies For Recurrent Clostridioides Difficile Infection Reach An Important New Milestone, Herbert L Dupont, Andrew W Dupont, Glenn S Tillotson

Faculty, Staff and Student Publications

Microbiota restoration therapy has become a standard treatment for recurrent Clostridioides difficile infection (rCDI). In this article, we review the studies supporting the licensure of two live biotherapeutic products (LBPs) designed to prevent rCDI and to provide clinicians with a perspective on their differences. PubMed was reviewed on 1 October 2023, for all papers published concerning the current Food and Drug Administration allowance of the use of fecal microbiota transplantation (FMT) and the studies that led to the licensure of RBX2660 (REBYOTA™), generic name, fecal microbiota, live-jslm, and SER-109 (VOWST™), generic name, fecal microbiota spores, live-brpk. OpenBiome continues to produce …

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 …

Human Minor Salivary Glands: A Readily Available Source Of Salivary Stem/Progenitor Cells For Regenerative Applications, Caitlynn M L Barrows, Danielle Wu, Simon Young, Mary C Farach-Carson

Faculty, Staff and Student Publications

Resident stem/progenitor cells within the secretory salivary glands offer a potential therapeutic resource for use in the regeneration of salivary glands needed to restore saliva production in patients with chronic xerostomia, or dry mouth. Methods were developed previously to isolate human stem/progenitor cells (hS/PCs) from major salivary glands (parotid/submandibular). Abundant minor salivary glands located in readily accessible locations in the oral cavity and lip could provide an additional valuable therapeutic resource. An advantage of this cell resource is that these minor glands about the size of grape seeds can be harvested from healthy donors using minimally invasive surgical procedures. The …

Harnessing Uncertainty In Radiotherapy Auto-Segmentation Quality Assurance, Kareem A Wahid, Jaakko Sahlsten, Joel Jaskari, Michael J Dohopolski, Kimmo Kaski, Renjie He, Enrico Glerean, Benjamin H Kann, Antti Mäkitie, Clifton D Fuller, Mohamed A Naser, David Fuentes

Faculty, Staff and Student Publications

One of the key contributions of this study is the reappropriation of standard DL outputs as a quality indicator to identify cases that clinicians should review further. The authors achieve this by applying an empirically derived threshold to the softmax output of their DL network, computing the mean of the thresholded score map (termed the HiS metric), and correlating it with standard geometric quality indices. When juxtaposed with a mean entropy — a commonly used measure of model output uncertainty — HiS consistently demonstrated a stronger correlation with the geometric indices, suggesting its superior ability to stratify cases needing additional …

Situations Predisposing Primary Care Patients To Use Antibiotics Without A Prescription In The United States, Lindsey A Laytner, Barbara W Trautner, Susan Nash, Fabrizia Faustinella, Roger Zoorob, Kiara Olmeda, Michael K Paasche-Orlow, Larissa Grigoryan

Faculty, Staff and Students Publications

BACKGROUND: Patients' situations can impact their intentions to use antibiotics without medical guidance (non-prescription use) in the future. This survey determines the prevalence of intended (future) use of non-prescription antibiotics for 13 predefined situations and identifies the sociodemographic characteristics associated with intended use for these types of situations.

METHODS: Patient surveys (N = 564) were conducted from January 2020 to June 2021 in the waiting rooms of 6 safety-net primary care clinics and 2 emergency departments in a private healthcare system. We used principal component analysis to identify 3 situational summary factors: barriers to a doctor visit, accessibility of non-prescription …

Pre-Left Ventricular Assist Device Endoscopic Evaluation Does Not Reduce The Risk Of Later Gastrointestinal Bleeding: A Multicenter Study, Jiahao Peng, Samanthika Devalaraju, Mohamed Azab, William T Cates, Molly Stone, Jonathan Reichstein, Sneha Shaha, Subhasis Chatterjee, Andrew B Civitello, Mourad H Senussi, B Joseph Elmunzer, Michael Volk, Wasseem Skef

Faculty, Staff and Students Publications

BACKGROUND: Gastrointestinal bleeding (GIB) is a common complication after placement of a left ventricular assist device (LVAD). Some institutions attempt to mitigate post-LVAD GIB using preoperative endoscopy. Our study evaluated whether preoperative endoscopy was associated with a lower risk of post-LVAD GIB.

METHODS: This was a multicenter cohort study of patients who underwent LVAD insertion from 2010-2019 at 3 academic sites. A total of 398 study participants were categorized based on whether they underwent preoperative endoscopy or not. The follow-up period was 1 year and the primary outcome was GIB. Secondary outcomes were severe bleeding and intraprocedural complications.

RESULTS: A …

Using Noninvasive Clinical Parameters To Predict Mortality And Morbidity After Cardiac Interventions In Patients With Cirrhosis: A Systematic Review, Christo Mathew, Ankur Patel, George Cholankeril, Avegail Flores, Ruben Hernaez

Faculty, Staff and Students Publications

BACKGROUND: Cardiovascular disease commonly affects advanced liver disease patients. They undergo cardiac interventions to improve cardiac outcomes. Cirrhosis increases complication risk, including bleeding, renal and respiratory failure, and further decompensation, including death, posing a clinical dilemma to proceduralists. Predicting outcomes is crucial in managing patients with cirrhosis. Our aim was to systematically review clinical parameters to assess the mortality and complication risk in patients with cirrhosis undergoing cardiac interventions.

METHODS: We searched cirrhosis and cardiovascular intervention terminology in PubMed and Excerpta Medica Database (EMBASE) from inception to January 8, 2023. We included studies reporting clinical scores (e.g. Model for End-stage …

Promising Response Of Olaparib In Patient With Germline Atm-Mutated Metastatic Gastric Cancer, Kok Hoe Chan, Darius Rutazanaa, Curtis Wray, Nirav Thosani, Victor Yang, Putao Cen

Faculty, Staff and Student Publications

Gastric cancer ranks as the fifth leading cause of global cancer incidences, exhibiting varied prevalence influenced by geographical, ethnic, and lifestyle factors, as well as Helicobacter pylori infection. The ATM gene on chromosome 11q22 is vital for genomic stability as an initiator of the DNA damage response, and mutations in this gene have been associated with various cancers. Poly ADP-ribose polymerase (PARP) inhibitors, such as olaparib, have shown efficacy in cancers with homologous recombination repair deficiencies, notably in those with ATM mutations. Here, we present a case of a 66-year-old patient with germline ATM-mutated metastatic gastric cancer with very high …

Biologic Complications Associated With Cylindrical Lead Spinal Cord Stimulator Implants: A Narrative Review, Peter D Vu, Dorina Pinkhasova, Zohal B Sarwary, Anush Rita Markaryan, Bakir Mousa, Omar Viswanath, Christopher L Robinson, Giustino Varrassi, Vwaire Orhurhu, Ivan Urits, Jamal Hasoon

Faculty, Staff and Student Publications

Purpose of review: Spinal cord stimulation (SCS) is a minimally invasive and reversible therapy for the treatment of severe neuropathic pain. There are several biologic complications that can arise during the implantation of SCS systems. This review aims to consolidate recent research on complications associated with SCS, specifically focusing on biologic complications.

Recent findings: Biologic complications are less frequently encountered compared to device-related complications but may have more severe consequences. Biologic complications covered in this review include infection, seromas, hematomas, dural puncture, nerve/spinal cord injury, and therapy habituation.

Conclusion: The application of SCS remains a viable and effective choice for …

Stimulating Superior Cluneal Nerves Via Peripheral Nerve Stimulation As A Treatment For Chronic Low Back Pain, Peter D Vu, Christopher L Robinson, Alan D Kaye, Jamal Hasoon

Faculty, Staff and Student Publications

Low back pain (LBP) is a challenging clinical condition for both patients and physicians. It requires a comprehensive initial diagnosis to avoid missing potential causes. One less common cause is superior cluneal neuralgia (SCN), which can present with limited lumbar motion, LBP, buttock pain, or an antalgic gait. While conservative therapies are often first line for LBP, neuromodulation, such as peripheral nerve stimulation (PNS), can be considered for more refractory cases. This case report is unique in that SCN was treated with a temporary PNS system, which provided sustained analgesic benefits without the need for permanent implantation.

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 = …

Practical Quality Improvement Changes For A Low-Resourced Pediatric Unit, Phoebe H Yager, Kevin Mary Callans, Aubrey Samost-Williams, Jose A Bonilla, Luis J G Flores, Susana C A Hasbun, Angel E A Rodríguez, Alejandra B A Cárdenas, Alexia M L Núñez, Asitha D L Jayawardena, Evelyn J Zablah, Christopher J Hartnick

Faculty, Staff and Student Publications

Background: This work describes a sustainable and replicable initiative to optimize multi-disciplinary care and uptake of clinical best practices for patients in a pediatric intensive care unit in Low/Middle Income Countries and to understand the various factors that may play a role in the reduction in child mortality seen after implementation of the Quality Improvement Initiative.

Methods: This was a longitudinal assessment of a quality improvement program with the primary outcome of intubated pediatric patient mortality. The program was assessed 36 months following implementation of the quality improvement intervention using a t-test with linear regression to control for co-variates. …

Persistent Microbial Infections And Idiopathic Pulmonary Fibrosis – An Insight Into Non-Typeable Haemophilus Influenza Pathogenesis, Anthony Shadid, Haydn E Rich, Hunter Devaughn, Aleksey Domozhirov, Marie-Françoise Doursout, Tingting Weng-Mills, Kristin L Eckel-Mahan, Harry Karmouty-Quintana, Marcos I Restrepo, Pooja Shivshankar

Faculty, Staff and Student Publications

Interstitial lung disease (ILD) is characterized by chronic inflammation and scarring of the lungs, of which idiopathic pulmonary fibrosis (IPF) is the most devastating pathologic form. Idiopathic pulmonary fibrosis pathogenesis leads to loss of lung function and eventual death in 50% of patients, making it the leading cause of ILD-associated mortality worldwide. Persistent and subclinical microbial infections are implicated in the acute exacerbation of chronic lung diseases. However, while epidemiological studies have highlighted pollutants, gastric aspirate, and microbial infections as major causes for the progression and exacerbation of IPF, the role of persistent microbial infections in the pathogenesis of IPF …

Editorial: Methods And Applications Of Tumour Metabolic Imaging In The Preclinical And Clinical Setting, Liangjie Lin, Zhiliang Wei, Jing Wang, Nian Wang

Faculty, Staff and Student Publications

No abstract provided.

Combining Neuroimaging And Brain Stimulation To Test Alternative Causal Pathways For Nicotine Addiction In Schizophrenia, Xiaoming Du, Fow-Sen Choa, Joshua Chiappelli, Heather Bruce, Mark Kvarta, Ann Summerfelt, Yizhou Ma, William T Regenold, Kevin Walton, George F Wittenberg, Stephanie Hare, Si Gao, Andrew Van Der Vaart, Zhiwei Zhao, Shuo Chen, Peter Kochunov, L Elliot Hong

Faculty, Staff and Student Publications

The smoking rate is high in patients with schizophrenia. Brain stimulation targeting conventional brain circuits associated with nicotine addiction has also yielded mixed results. We aimed to identify alternative circuitries associated with nicotine addiction in both the general population and schizophrenia, and then test whether modulation of such circuitries may alter nicotine addiction behaviors in schizophrenia. In Study I of 40 schizophrenia smokers and 51 non-psychiatric smokers, cross-sectional neuroimaging analysis identified resting state functional connectivity (rsFC) between the dorsomedial prefrontal cortex (dmPFC) and multiple extended amygdala regions to be most robustly associated with nicotine addiction severity in healthy controls and …

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.

Deep Filtered Back Projection For Ct Reconstruction, X I Tan, Xuan Liu, Kai Xiang, Jing Wang, Shan Tan

Faculty, Staff and Student Publications

Filtered back projection (FBP) is a classic analytical algorithm for computed tomography (CT) reconstruction, with high computational efficiency. However, images reconstructed by FBP often suffer from excessive noise and artifacts. The original FBP algorithm uses a window function to smooth signals and a linear interpolation to estimate projection values at un-sampled locations. In this study, we propose a novel framework named DeepFBP in which an optimized filter and an optimized nonlinear interpolation operator are learned with neural networks. Specifically, the learned filter can be considered as the product of an optimized window function and the ramp filter, and the learned …

Rapid Response To Sirolimus In Patients With Pik3ca-Related Overgrowth Spectrum, Jessica R Nye, Jackson C Green, Michael Talanker, Jose Barrera, Kate Richardson, Neethu M Menon, Adelaide A Hebert, Matthew R Greives, Autumn A Atkinson

Faculty, Staff and Student Publications

PIK3CA-related overgrowth spectrum (PROS) is an umbrella term used to unify a heterogenous group of vascular overgrowth disorders by a shared genetic cause. Given that patients with PROS have a known, or likely, gene mutation in the PI3K/AKT/mTOR cascade, we hypothesize they experience a rapid response to inhibitors of this pathway, including sirolimus. In the following case series, we describe 3 patients with PROS and their response to sirolimus therapy. Despite their unique clinical presentations, insight into the genetic origin of their vascular overgrowth allowed for their successful treatment with the same medication.

Intranasal Sensitization Model Of Alopecia Areata Using Pertussis Toxin As Adjuvant, Yuying Liu, Jasmin Freeborn, Beanna Okeugo, Shabba A Armbrister, Zeina M Saleh, Ana Beatriz Fadhel Alvarez, Thomas K Hoang, Evelyn S Park, John William Lindsey, Ronald P Rapini, Steven Glazer, Keith Rubin, Jon Marc Rhoads

Faculty, Staff and Student Publications

Background: Nasopharyngeal Bordetella pertussis (BP) colonization is common, with about 5% of individuals having PCR evidence of subclinical BP infection on nasal swab, even in countries with high vaccination rates. BP secretes pertussis toxin (PTx). PTx is an adjuvant commonly used to induce autoimmunity in multiple animal models of human disease. Colocalization of PTx and myelin from myelinated nerves in the nasopharynx may lead to host sensitization to myelin with subsequent autoimmune pathology.

Methods: C57BL/6J female adult mice were given varied doses and schedules of intranasal PTx, MOG35-55 antigen, or controls to test whether intranasal administration of PTx and myelin …

Registration Of Hyperspectral Images And Mass Spectrometry Data For The Correlation Of Tissue Optical Spectra And Molecular Profiles, Angie T Fei, Douglas W Strand, Jing Wang

Faculty, Staff and Student Publications

Hyperspectral imaging (HSI) is a label-free imaging modality that is emerging for non-invasive detection of various diseases including cancers. HSI provides high-resolution spatial images where each pixel has a spectral curve with numerous wavelength bands from the visible to infrared ranges. The rich spatial and spectral information can be used to discriminate various types of tissues and pathophysiological conditions. However, it can be difficult to explain spectral data with respect to the underline cellular and molecular mechanism. In this study, we developed an approach that registers hyperspectral images and mass spectrometry (MS) data where MS provides tissue molecular profiles. Human …

Increased Risk For Alcohol- And Other Substance-Exposed Pregnancies Among Women Who Smoke Tobacco: A Secondary Analysis Of A Primary Care-Based Intervention, Thomas F Northrup, Angela L Stotts, Stephen M Fischer, Kirk L Von Sternberg, Mary M Velasquez

Faculty, Staff and Student Publications

Introduction: Among women at risk for alcohol-exposed pregnancies (AEP), smoking tobacco may be associated with increased severity of alcohol use, and risk for tobacco-exposed and other substance-exposed pregnancies (TEPs/SEPs). Our secondary data analysis of the 'CHOICES Plus' intervention trial explored AEP and SEP risk by smoking status.

Methods: Eligible women (N=261) were recruited from 12 primary care clinics in a public healthcare system, not pregnant, aged 18-44 years, drinking >3 drinks/day or >7 drinks/week, sexually active, and not using effective contraception. We compared women who did and did not smoke tobacco on alcohol and drug severity, and psychological distress (e.g. …

Refinement Of An Emergency Department-Based, Advance Care Planning Intervention For Patients With Cognitive Impairment And Their Caregivers, Kei Ouchi, Christopher Joshi, Jenson Kaithamattam, Seth A Gale, Gad A Marshall, Alison Pietras, Wei Wang, Edward W Boyer, James A Tulsky, Susan D Block, Dorene Rentz, Mara A Schonberg

Faculty, Staff and Student Publications

Background and objectives: Advance care planning (ACP) conversations are important to provide goal-concordant care (i.e., the care that matches the patient's previously stated goals) near end of life. While 31% of older adults presenting to the emergency department (ED) have dementia, only 39% have previously had ACP conversations. We refined and piloted an ED-based, motivational interview designed to stimulate ACP conversations (ED GOAL) for patients living with cognitive impairment and their caregivers.

Research design and methods: We systematically refined ED GOAL and then conducted an acceptability study in an urban, academic medical center. We prospectively enrolled adults aged 50+ with …

Editorial: Immunological Aspects Of Emerging And Re-Emerging Zoonoses, Wei Wang, Jingxin Li, Yuejin Liang, Wenping Gong

Faculty, Staff and Student Publications

No abstract provided.

Unicentric Castleman Disease: Illustration Of Its Morphologic Spectrum And Review Of The Differential Diagnosis, Siba El Hussein, Andrew G Evans, Hong Fang, Wei Wang, L Jeffrey Medeiros

Faculty, Staff and Student Publications

Context: Unicentric Castleman disease (UCD) is a dynamic entity with a wide spectrum of morphologic findings. UCD can be further subdivided into hyaline-vascular and mixed/plasmacytic variants. Hyaline-vascular UCD has both follicular and interfollicular (stromal) changes, and occasionally these lesions show a skewed representation of either the follicular or stromal compartments. Plasmacytosis is usually minimal in the hyaline-vascular variant. The mixed/plasmacytic variant of UCD is composed of sheets of plasma cells often associated with a variable number of follicles with regressive changes.

Objective: To illustrate the differential diagnosis of UCD, as it is quite broad and includes lymphomas, plasma cell neoplasms, …