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Articles 541 - 570 of 2904

Full-Text Articles in Medicine and Health Sciences

New Aspects Of The Epigenetics Of Pancreatic Carcinogenesis., Murat Toruner, Martin E. Fernandez-Zapico, Christopher Pin Sep 2020

New Aspects Of The Epigenetics Of Pancreatic Carcinogenesis., Murat Toruner, Martin E. Fernandez-Zapico, Christopher Pin

Paediatrics Publications

Pancreatic cancer remains among the deadliest forms of cancer with a 5 year survival rate less than 10%. With increasing numbers being observed, there is an urgent need to elucidate the pathogenesis of pancreatic cancer. While both contribute to disease progression, neither genetic nor environmental factors completely explain susceptibility or pathogenesis. Defining the links between genetic and environmental events represents an opportunity to understand the pathogenesis of pancreatic cancer. Epigenetics, the study of mitotically heritable changes in genome function without a change in nucleotide sequence, is an emerging field of research in pancreatic cancer. The main epigenetic mechanisms include DNA …


Call To Action: Sars-Cov-2 And Cerebrovascular Disorders (Cascade), Shahram Abootalebi, Benjamin M. Aertker, Mohammad Sobhan Andalibi, Negar Asdaghi, Ozlem Aykac, M. Reza Azarpazhooh, M. Cecilia Bahit, Kristian Barlinn, Hamidon Basri, Reza Bavarsad Shahripour, Anna Bersano, Jose Biller, Afshin Borhani-Haghighi, Robert D. Brown, Bruce Cv Campbell, Salvador Cruz-Flores, Deidre Anne De Silva, Mario Di Napoli, Afshin A. Divani, Randall C. Edgell, Johanna T. Fifi, Abdoreza Ghoreishi, Teruyuki Hirano, Keun Sik Hong, Chung Y. Hsu, Josephine F. Huang, Manabu Inoue, Amanda L. Jagolino, Moira Kapral, Hoo Fan Kee, Zafer Keser, Rakesh Khatri Sep 2020

Call To Action: Sars-Cov-2 And Cerebrovascular Disorders (Cascade), Shahram Abootalebi, Benjamin M. Aertker, Mohammad Sobhan Andalibi, Negar Asdaghi, Ozlem Aykac, M. Reza Azarpazhooh, M. Cecilia Bahit, Kristian Barlinn, Hamidon Basri, Reza Bavarsad Shahripour, Anna Bersano, Jose Biller, Afshin Borhani-Haghighi, Robert D. Brown, Bruce Cv Campbell, Salvador Cruz-Flores, Deidre Anne De Silva, Mario Di Napoli, Afshin A. Divani, Randall C. Edgell, Johanna T. Fifi, Abdoreza Ghoreishi, Teruyuki Hirano, Keun Sik Hong, Chung Y. Hsu, Josephine F. Huang, Manabu Inoue, Amanda L. Jagolino, Moira Kapral, Hoo Fan Kee, Zafer Keser, Rakesh Khatri

Epidemiology and Biostatistics Publications

Background and purpose: The novel severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2), now named coronavirus disease 2019 (COVID-19), may change the risk of stroke through an enhanced systemic inflammatory response, hypercoagulable state, and endothelial damage in the cerebrovascular system. Moreover, due to the current pandemic, some countries have prioritized health resources towards COVID-19 management, making it more challenging to appropriately care for other potentially disabling and fatal diseases such as stroke. The aim of this study is to identify and describe changes in stroke epidemiological trends before, during, and after the COVID-19 pandemic. Methods: This is an international, multicenter, hospital-based …


The Application Of Drones In Healthcare And Health-Related Services In North America: A Scoping Review, Bradley Hiebert, Elysée Nouvet, Vyshnave Jeyabalan, Lorie Donelle Sep 2020

The Application Of Drones In Healthcare And Health-Related Services In North America: A Scoping Review, Bradley Hiebert, Elysée Nouvet, Vyshnave Jeyabalan, Lorie Donelle

Health Studies Publications

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Using drone aircraft to deliver healthcare and other health-related services is a relatively new application of this technology in North America. For health service providers, drones represent a feasible means to increase their efficiency and ability to provide services to individuals, especially those in difficult to reach locations. This paper presents the results of a scoping review of the research literature to determine how drones are used for healthcare and health-related services in North America, and how such applications account for human operating and machine design factors. Data were collected from …


Context-Specific Challenges, Opportunities, And Ethics Of Drones For Healthcare Delivery In The Eyes Of Program Managers And Field Staff: A Multi-Site Qualitative Study, Vyshnave Jeyabalan, Elysée Nouvet, Patrick Meier, Lorie Donelle Sep 2020

Context-Specific Challenges, Opportunities, And Ethics Of Drones For Healthcare Delivery In The Eyes Of Program Managers And Field Staff: A Multi-Site Qualitative Study, Vyshnave Jeyabalan, Elysée Nouvet, Patrick Meier, Lorie Donelle

Health Studies Publications

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Unmanned aerial vehicles (UAVs), also known as drones, have significant potential in the healthcare field. Ethical and practical concerns, challenges, and complexities of using drones for specific and diverse healthcare purposes have been minimally explored to date. This paper aims to document and advance awareness of diverse context-specific concerns, challenges, and complexities encountered by individuals working on the front lines of drones for health. It draws on original qualitative research and data from semi-structured interviews (N = 16) with drones for health program managers and field staff in nine countries. Directed …


The Story Behind The Ontario Health Insurance Plan And Its Impact On The Public Sector, Marvin L. Simner Sep 2020

The Story Behind The Ontario Health Insurance Plan And Its Impact On The Public Sector, Marvin L. Simner

History Publications

The Ontario Health Insurance Plan is a provincially supported health care program that required fifteen years to develop and emerged though seven distinct and frequently controversial stages. It was said at the time to have generated more heated debate in the House than any other legislation that previously had been approved by the provincial government. The purpose of this report is to provide a comprehensive review of these seven stages, the arguments that accompanied each stage, and the impact of the stages on the local community. In the final section we discuss how certain elements in these stages, if known …


Pilot Study Of Mental Health And Substance Use Of Detained Youths In Ontario, Canada, Evelyn R. Vingilis, Shannon Stewart, Hayley A. Hamilton, Jane Seeley, Kathleen M. Einarson, Nathan J. Kolla, Susan J. Bondy, Patricia G. Erickson Sep 2020

Pilot Study Of Mental Health And Substance Use Of Detained Youths In Ontario, Canada, Evelyn R. Vingilis, Shannon Stewart, Hayley A. Hamilton, Jane Seeley, Kathleen M. Einarson, Nathan J. Kolla, Susan J. Bondy, Patricia G. Erickson

Family Medicine Publications

Detained youth display substantive mental health and substance use problems. However, Canadian information is limited. The purpose of this study was (1) to assess mental health and substance use problems of youth in residential detention/custody facilities in Ontario, Canada, at intake, using the interRAI Youth Justice in Custodial Facilities (YJCF), and (2) to explore the added value of using the YJCF in addition to the facilities’ standard intake tool. This paper presents the findings of this pilot study. Drawing on all 20 youth secure custody facilities in Ontario, Canada, two groups were created through stratified random group assignment: 10 intervention …


A Novel Salvage Option For Local Failure In Prostate Cancer, Reirradiation Using External Beam Or Stereotactic Radiation Therapy: Systematic Review And Meta-Analysis, Mark T. Corkum, Lucas C. Mendez, Joseph Chin, David D'Souza, R. Gabriel Boldt, Glenn S. Bauman Sep 2020

A Novel Salvage Option For Local Failure In Prostate Cancer, Reirradiation Using External Beam Or Stereotactic Radiation Therapy: Systematic Review And Meta-Analysis, Mark T. Corkum, Lucas C. Mendez, Joseph Chin, David D'Souza, R. Gabriel Boldt, Glenn S. Bauman

Medical Biophysics Publications

Purpose: Reirradiation (re-RT) using external beam radiation therapy (EBRT) is a novel salvage strategy for local failure in prostate cancer. We performed a systematic review describing oncologic and toxicity outcomes for salvage EBRT/stereotactic radiation therapy (SBRT) re-RT. Methods and Materials: A International Prospective Register of Systematic Reviews registered (#141466) systematic review, meta-analysis, and meta-regression was conducted using preferred reporting items for systematic reviews and meta-analyses guidelines. PubMed and EMBASE were searched from inception through September 2019. Outcome measures included local control (LC), biochemical relapse free survival (BRFS), and ≥grade 3 genitourinary (GU)/gastrointestinal (GI) toxicity. EBRT and SBRT data were collected …


Application Of A Novel Automatic Method For Determining The Bilateral Symmetry Midline Of The Facial Skeleton Based On Invariant Moments, Rodrigo Dalvit Carvalho Da Silva, Thomas Richard Jenkyn, Victor Alexander Carranza Sep 2020

Application Of A Novel Automatic Method For Determining The Bilateral Symmetry Midline Of The Facial Skeleton Based On Invariant Moments, Rodrigo Dalvit Carvalho Da Silva, Thomas Richard Jenkyn, Victor Alexander Carranza

Bone and Joint Institute

© 2020 by the authors. Assuming a symmetric pattern plays a fundamental role in the diagnosis and surgical treatment of facial asymmetry, for reconstructive craniofacial surgery, knowing the precise location of the facial midline is important since for most reconstructive procedures the intact side of the face serves as a template for the malformed side. However, the location of the midline is still a subjective procedure, despite its importance. This study aimed to automatically locate the bilateral symmetry midline of the facial skeleton based on an invariant moment technique using pseudo-Zernike moments. A total of 367 skull images were evaluated …


Syllables In Sync Form A Link: Neural Phase-Locking Reflects Word Knowledge During Language Learning, Laura Batterink Sep 2020

Syllables In Sync Form A Link: Neural Phase-Locking Reflects Word Knowledge During Language Learning, Laura Batterink

Brain and Mind Institute Researchers' Publications

Language is composed of small building blocks, which combine to form larger meaningful structures. To understand language, we must process, track, and concatenate these building blocks into larger linguistic units as speech unfolds over time. An influential idea is that phase-locking of neural oscillations across different levels of linguistic structure provides a mechanism for this process. Building on this framework, the goal of the current study was to determine whether neural phase-locking occurs more robustly to novel linguistic items that are successfully learned and encoded into memory, compared to items that are not learned. Participants listened to a continuous speech …


Pain In The Newborn Brain: A Neural Signature, Emma G. Duerden, Steven P. Miller Sep 2020

Pain In The Newborn Brain: A Neural Signature, Emma G. Duerden, Steven P. Miller

Brain and Mind Institute Researchers' Publications

No abstract provided.


An Auditory-Perceptual And Pupillometric Study Of Vocal Strain And Listening Effort In Adductor Spasmodic Dysphonia, Mojgan Farahani, Vijay Parsa, Björn Herrmann, Mason Kadem, Ingrid Johnsrude, Philip C. Doyle Sep 2020

An Auditory-Perceptual And Pupillometric Study Of Vocal Strain And Listening Effort In Adductor Spasmodic Dysphonia, Mojgan Farahani, Vijay Parsa, Björn Herrmann, Mason Kadem, Ingrid Johnsrude, Philip C. Doyle

Brain and Mind Institute Researchers' Publications

© 2020 by the authors. This study evaluated ratings of vocal strain and perceived listening effort by normal hearing participants while listening to speech samples produced by talkers with adductor spasmodic dysphonia (AdSD). In addition, objective listening effort was measured through concurrent pupillometry to determine whether listening to disordered voices changed arousal as a result of emotional state or cognitive load. Recordings of the second sentence of the "Rainbow Passage" produced by talkers with varying degrees of AdSD served as speech stimuli. Twenty naïve young adult listeners perceptually evaluated these stimuli on the dimensions of vocal strain and listening effort …


Decoding Motor Imagery And Action Planning In The Early Visual Cortex: Overlapping But Distinct Neural Mechanisms, Simona Monaco, Giulia Malfatti, Jody C. Culham, Luigi Cattaneo, Luca Turella Sep 2020

Decoding Motor Imagery And Action Planning In The Early Visual Cortex: Overlapping But Distinct Neural Mechanisms, Simona Monaco, Giulia Malfatti, Jody C. Culham, Luigi Cattaneo, Luca Turella

Brain and Mind Institute Researchers' Publications

Recent evidence points to a role of the primary visual cortex that goes beyond visual processing into high-level cognitive and motor-related functions, including action planning, even in absence of feedforward visual information. It has been proposed that, at the neural level, motor imagery is a simulation based on motor representations, and neuroimaging studies have shown overlapping and shared activity patterns for motor imagery and action execution in frontal and parietal cortices. Yet, the role of the early visual cortex in motor imagery remains unclear. Here we used multivoxel pattern analyses on functional magnetic resonance imaging (fMRI) data to examine whether …


Pannexin 1 Inhibition Delays Maturation And Improves Development Of Bos Taurus Oocytes, Zachary Timothy Dye, Lauren Virginia Rutledge, Silvia Penuela, Paul William Dyce Aug 2020

Pannexin 1 Inhibition Delays Maturation And Improves Development Of Bos Taurus Oocytes, Zachary Timothy Dye, Lauren Virginia Rutledge, Silvia Penuela, Paul William Dyce

Anatomy and Cell Biology Publications

© 2020 The Author(s). Background: Intercellular exchange between the oocyte and its surrounding cells within the follicular environment is critical for oocyte maturation and subsequent development. In vertebrates this exchange is facilitated through gap junctions formed by connexin membrane proteins. Another family of membrane proteins called pannexins are able to form single membrane channels that allow cellular exchanges with the extracellular environment. The most ubiquitously expressed and studied member, pannexin 1 (PANX1), has yet to be described thoroughly in female reproductive tissues or functionally studied during oocyte maturation. Here, we look into the expression of pannexin 1 in bovine cumulus-oocyte …


A Pragmatic Randomized Controlled Trial Of Multi-Dose Oral Ondansetron For Pediatric Gastroenteritis (The Dose-Age Study): Statistical Analysis Plan., Anna Heath, Juan David Rios, Sarah Williamson-Urquhart, Petros Pechlivanoglou, Martin Offringa, Christopher Mccabe, Gareth Hopkin, Amy C Plint, Andrew Dixon, Darcy Beer, Serge Gouin, Gary Joubert, Terry P Klassen, Stephen B Freedman Aug 2020

A Pragmatic Randomized Controlled Trial Of Multi-Dose Oral Ondansetron For Pediatric Gastroenteritis (The Dose-Age Study): Statistical Analysis Plan., Anna Heath, Juan David Rios, Sarah Williamson-Urquhart, Petros Pechlivanoglou, Martin Offringa, Christopher Mccabe, Gareth Hopkin, Amy C Plint, Andrew Dixon, Darcy Beer, Serge Gouin, Gary Joubert, Terry P Klassen, Stephen B Freedman

Paediatrics Publications

BACKGROUND: Acute gastroenteritis is a leading cause of emergency department visits and hospitalizations among children in North America. Oral-rehydration therapy is recommended for children with mild-to-moderate dehydration, but children who present with vomiting are frequently offered intravenous rehydration in the emergency department (ED). Recent studies have demonstrated that the anti-emetic ondansetron can reduce vomiting, intravenous rehydration, and hospitalization when administered in the ED to children with dehydration. However, there is little evidence of additional benefit from prescribing ondansetron beyond the initial ED dose. Moreover, repeat dosing may increase the frequency of diarrhea. Despite the lack of evidence and potential adverse …


The Architectural Evolution Of Self-Immolative Polymers, Quinton E.A. Sirianni, Elizabeth R. Gillies Aug 2020

The Architectural Evolution Of Self-Immolative Polymers, Quinton E.A. Sirianni, Elizabeth R. Gillies

Bone and Joint Institute

© 2020 Elsevier Ltd Self-immolative polymers (SIPs) depolymerize to small molecules through a cascade of reactions following cleavage of the polymer backbone or a specific terminal or focal point moiety by a stimulus. They have been developed using the principles of self-immolative spacers and low ceiling temperature (Tc) polymers. Key developments over the past couple of decades have been the polymerization of spacers to enable long reaction cascades, and the introduction of stimuli-responsive end-caps which have allowed depolymerization to be triggered in a controlled manner in response to a wide array of stimuli. This review will focus on the architectural …


Ontario Neurodegenerative Disease Research Initiative (Ondri): Structural Mri Methods And Outcome Measures, Joel Ramirez, Melissa F. Holmes, Christopher J.M. Scott, Miracle Ozzoude, Miracle Ozzoude, Sabrina Adamo, Gregory M. Szilagyi, Maged Goubran, Fuqiang Gao, Stephen R. Arnott, Jane M. Lawrence-Dewar, Jane M. Lawrence-Dewar, Derek Beaton, Stephen C. Strother, Douglas P. Munoz, Mario Masellis, Richard H. Swartz, Robert Bartha, Sean P. Symons, Sandra E. Black, Michael Strong, Peter Kleinstiver, Natalie Rashkovan, Susan Bronskill, Sandra E. Black, Michael Borrie, Elizabeth Finger, Corinne Fischer, Andrew Frank, Morris Freedman, Sanjeev Kumar, Stephen Pasternak Aug 2020

Ontario Neurodegenerative Disease Research Initiative (Ondri): Structural Mri Methods And Outcome Measures, Joel Ramirez, Melissa F. Holmes, Christopher J.M. Scott, Miracle Ozzoude, Miracle Ozzoude, Sabrina Adamo, Gregory M. Szilagyi, Maged Goubran, Fuqiang Gao, Stephen R. Arnott, Jane M. Lawrence-Dewar, Jane M. Lawrence-Dewar, Derek Beaton, Stephen C. Strother, Douglas P. Munoz, Mario Masellis, Richard H. Swartz, Robert Bartha, Sean P. Symons, Sandra E. Black, Michael Strong, Peter Kleinstiver, Natalie Rashkovan, Susan Bronskill, Sandra E. Black, Michael Borrie, Elizabeth Finger, Corinne Fischer, Andrew Frank, Morris Freedman, Sanjeev Kumar, Stephen Pasternak

Medical Biophysics Publications

The Ontario Neurodegenerative Research Initiative (ONDRI) is a 3 years multi-site prospective cohort study that has acquired comprehensive multiple assessment platform data, including 3T structural MRI, from neurodegenerative patients with Alzheimer's disease, mild cognitive impairment, Parkinson's disease, amyotrophic lateral sclerosis, frontotemporal dementia, and cerebrovascular disease. This heterogeneous cross-section of patients with complex neurodegenerative and neurovascular pathologies pose significant challenges for standard neuroimaging tools. To effectively quantify regional measures of normal and pathological brain tissue volumes, the ONDRI neuroimaging platform implemented a semi-automated MRI processing pipeline that was able to address many of the challenges resulting from this heterogeneity. The purpose …


The Human Cerebellum Has Almost 80% Of The Surface Area Of The Neocortex, Martin I. Sereno, J. Rn Diedrichsen, Mohamed Tachrount, Guilherme Testa-Silva, Helen D Arceuil, Chris De Zeeuw Aug 2020

The Human Cerebellum Has Almost 80% Of The Surface Area Of The Neocortex, Martin I. Sereno, J. Rn Diedrichsen, Mohamed Tachrount, Guilherme Testa-Silva, Helen D Arceuil, Chris De Zeeuw

Brain and Mind Institute Researchers' Publications

© 2020 National Academy of Sciences. All rights reserved. The surface of the human cerebellar cortex is much more tightly folded than the cerebral cortex. It was computationally reconstructed for the first time to the level of all individual folia from multicontrast high-resolution postmortem MRI scans. Its total shrinkage-corrected surface area (1,590 cm2) was larger than expected or previously reported, equal to 78% of the total surface area of the human neocortex. The unfolded and flattened surface comprised a narrow strip 10 cm wide but almost 1 m long. By applying the same methods to the neocortex and cerebellum of …


Passive, Yet Not Inactive: Robotic Exoskeleton Walking Increases Cortical Activation Dependent On Task, Sue Peters, Shannon B. Lim, Dennis R. Louie, Chieh-Ling Yang, Janice J. Eng Aug 2020

Passive, Yet Not Inactive: Robotic Exoskeleton Walking Increases Cortical Activation Dependent On Task, Sue Peters, Shannon B. Lim, Dennis R. Louie, Chieh-Ling Yang, Janice J. Eng

Physical Therapy Publications

Background

Experimental designs using surrogate gait-like movements, such as in functional magnetic resonance imaging (MRI), cannot fully capture the cortical activation associated with overground gait. Overground gait in a robotic exoskeleton may be an ideal tool to generate controlled sensorimotor stimulation of gait conditions like ‘active’ (i.e. user moves with the device) and ‘passive’ (i.e. user is moved by the device) gait. To truly understand these neural mechanisms, functional near-infrared spectroscopy (fNIRS) would yield greater ecological validity. Thus, the aim of this experiment was to use fNIRS to delineate brain activation differences between ‘Active’ and ‘Passive’ overground gait …


The Attitudes And Behaviors Of Students, Staff And Faculty Towards Smoke-Free And Tobacco-Free Campus Policies In North American Universities: A Narrative Review., Daniel Dilliott, Sajjad Fazel, Nazia Ehsan, Shannon L Sibbald Aug 2020

The Attitudes And Behaviors Of Students, Staff And Faculty Towards Smoke-Free And Tobacco-Free Campus Policies In North American Universities: A Narrative Review., Daniel Dilliott, Sajjad Fazel, Nazia Ehsan, Shannon L Sibbald

Health Studies Publications

INTRODUCTION: In Canada, a series of recent public health policies and interventions have successfully led to a decline in national tobacco use rates. However, tobacco use among young adults remains high and the tobacco industry continues to place a strong marketing emphasis towards young adults on university campuses. In response, many universities across Canada are beginning to adopt smoke-free or tobacco-free campus policies. While the effectiveness of smoke-free and tobaccofree campus policies has been demonstrated in several countries, little is known about the attitudinal responses of university students, faculty and staff towards these policies. As such, we conducted a review …


Neutral, Water-Soluble Poly(Ester Amide) Hydrogels For Cell Encapsulation, Natalie Liang, Lauren E. Flynn, Elizabeth R. Gillies Aug 2020

Neutral, Water-Soluble Poly(Ester Amide) Hydrogels For Cell Encapsulation, Natalie Liang, Lauren E. Flynn, Elizabeth R. Gillies

Bone and Joint Institute

© 2020 Elsevier Ltd Hydrogels are of significant interest for cell encapsulation and delivery in regenerative medicine. Poly(ester amide)s (PEAs) are a class of biodegradable polymers that exhibit promise for biomedical applications due to the degradability of the ester and amide linkages in their backbones, their preparation from biomolecules such as amino acids, and the ability to readily tune their properties through a modular synthesis approach. Water-soluble PEAs containing cationic arginine moieties have previously been developed, but to the best of our knowledge, neutral water-soluble PEAs based on non-charged amino acids have not been reported. Using a poly(ethylene glycol) (PEG)-based …


Medium-Term Complications Associated With Coronary Artery Aneurysms After Kawasaki Disease: A Study From The International Kawasaki Disease Registry., Brian W Mccrindle, Cedric Manlhiot, Jane W Newburger, Ashraf S Harahsheh, Therese M Giglia, Frederic Dallaire, Kevin Friedman, Tisiana Low, Kyle Runeckles, Mathew Mathew, Andrew S Mackie, Nadine F Choueiter, Pei-Ni Jone, Shelby Kutty, Anji T Yetman, Geetha Raghuveer, Elfriede Pahl, Kambiz Norozi, Kimberly E Mchugh, Jennifer S Li, Sarah D De Ferranti, Nagib Dahdah Aug 2020

Medium-Term Complications Associated With Coronary Artery Aneurysms After Kawasaki Disease: A Study From The International Kawasaki Disease Registry., Brian W Mccrindle, Cedric Manlhiot, Jane W Newburger, Ashraf S Harahsheh, Therese M Giglia, Frederic Dallaire, Kevin Friedman, Tisiana Low, Kyle Runeckles, Mathew Mathew, Andrew S Mackie, Nadine F Choueiter, Pei-Ni Jone, Shelby Kutty, Anji T Yetman, Geetha Raghuveer, Elfriede Pahl, Kambiz Norozi, Kimberly E Mchugh, Jennifer S Li, Sarah D De Ferranti, Nagib Dahdah

Paediatrics Publications

Background Coronary artery aneurysms (CAAs) may occur after Kawasaki disease (KD) and lead to important morbidity and mortality. As CAA in patients with KD are rare and heterogeneous lesions, prognostication and risk stratification are difficult. We sought to derive the cumulative risk and associated factors for cardiovascular complications in patients with CAAs after KD. Methods and Results A 34-institution international registry of 1651 patients with KD who had CAAs (maximum CAA


Risk Of New Bloodstream Infections And Mortality Among People Who Inject Drugs With Infective Endocarditis., Charlie Tan, Esfandiar Shojaei, Joshua C. Wiener, Meera Shah, Sharon Koivu, Michael Silverman Aug 2020

Risk Of New Bloodstream Infections And Mortality Among People Who Inject Drugs With Infective Endocarditis., Charlie Tan, Esfandiar Shojaei, Joshua C. Wiener, Meera Shah, Sharon Koivu, Michael Silverman

Epidemiology and Biostatistics Publications

IMPORTANCE: People who inject drugs (PWID) who are being treated for infective endocarditis remain at risk of new bloodstream infections (BSIs) due to ongoing intravenous drug use (IVDU).

OBJECTIVES: To characterize new BSIs in PWID receiving treatment for infective endocarditis, to determine the clinical factors associated with their development, and to determine whether new BSIs and treatment setting are associated with mortality.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study was performed at 3 tertiary care hospitals in London, Ontario, Canada, from April 1, 2007, to March 31, 2018. Participants included a consecutive sample of all PWID 18 years or …


Minding Many Minds An Assessment Of Mental Health And Resilience Among Undergraduate And Graduate Students A Mixed Methods Exploratory Study.Pdf, Rebecca Fried, Shazya Karmali, Jennifer Irwin Aug 2020

Minding Many Minds An Assessment Of Mental Health And Resilience Among Undergraduate And Graduate Students A Mixed Methods Exploratory Study.Pdf, Rebecca Fried, Shazya Karmali, Jennifer Irwin

Health Studies Publications

No abstract provided.


Consensus Guidelines For Management Of Hyperammonaemia In Paediatric Patients Receiving Continuous Kidney Replacement Therapy., Rupesh Raina, Jirair K Bedoyan, Uta Lichter-Konecki, Philippe Jouvet, Stefano Picca, Nicholas Ah Mew, Marcel C Machado, Ronith Chakraborty, Meghana Vemuganti, Manpreet K Grewal, Timothy Bunchman, Sidharth Kumar Sethi, Vinod Krishnappa, Mignon Mcculloch, Khalid Alhasan, Arvind Bagga, Rajit K Basu, Franz Schaefer, Guido Filler, Bradley A Warady Aug 2020

Consensus Guidelines For Management Of Hyperammonaemia In Paediatric Patients Receiving Continuous Kidney Replacement Therapy., Rupesh Raina, Jirair K Bedoyan, Uta Lichter-Konecki, Philippe Jouvet, Stefano Picca, Nicholas Ah Mew, Marcel C Machado, Ronith Chakraborty, Meghana Vemuganti, Manpreet K Grewal, Timothy Bunchman, Sidharth Kumar Sethi, Vinod Krishnappa, Mignon Mcculloch, Khalid Alhasan, Arvind Bagga, Rajit K Basu, Franz Schaefer, Guido Filler, Bradley A Warady

Paediatrics Publications

Hyperammonaemia in children can lead to grave consequences in the form of cerebral oedema, severe neurological impairment and even death. In infants and children, common causes of hyperammonaemia include urea cycle disorders or organic acidaemias. Few studies have assessed the role of extracorporeal therapies in the management of hyperammonaemia in neonates and children. Moreover, consensus guidelines are lacking for the use of non-kidney replacement therapy (NKRT) and kidney replacement therapies (KRTs, including peritoneal dialysis, continuous KRT, haemodialysis and hybrid therapy) to manage hyperammonaemia in neonates and children. Prompt treatment with KRT and/or NKRT, the choice of which depends on the …


Maternal Obesity Reduces Placental Autophagy Marker Expression In Uncomplicated Pregnancies, Matthew Cohen, Emily Guo, Aidan Pucchio, Barbra De Vrijer, Trevor G Shepherd, Genevieve Eastabrook Aug 2020

Maternal Obesity Reduces Placental Autophagy Marker Expression In Uncomplicated Pregnancies, Matthew Cohen, Emily Guo, Aidan Pucchio, Barbra De Vrijer, Trevor G Shepherd, Genevieve Eastabrook

Obstetrics & Gynaecology Publications

AIM: Obesity has been associated with changes in autophagy and its increasing prevalence among pregnant women is implicated in higher rates of placental-mediated complications of pregnancy such as pre-eclampsia and intrauterine growth restriction. Autophagy is involved in normal placentation, thus changes in autophagy may lead to impaired placental function and development. The aim of this study was to investigate the connection between obesity and autophagy in the placenta in otherwise uncomplicated pregnancies.

METHODS: Immunohistochemistry and western blot analysis were done on placental and omental samples from obese (body mass index [BMI] ≥30 kg/m

RESULTS: As pre-pregnancy BMI increased, there was …


The Impact Of Improved Access To After-Hours Primary Care On Emergency Department And Primary Care Utilization: A Systematic Review., Michael Hong, Amardeep Thind, Gregory S Zaric, Sisira Sarma Aug 2020

The Impact Of Improved Access To After-Hours Primary Care On Emergency Department And Primary Care Utilization: A Systematic Review., Michael Hong, Amardeep Thind, Gregory S Zaric, Sisira Sarma

Epidemiology and Biostatistics Publications

Access to after-hours primary care is problematic in many developed countries, leading patients to instead visit the emergency department for non-urgent conditions. However, emergency department utilization for conditions treatable in primary care settings may contribute to emergency department overcrowding and increased health system costs. This systematic review examines the impact of various initiatives by developed countries to improve access to after-hours primary care on emergency department and primary care utilization. We performed a systematic review on the impact of improved access to after-hours primary and searched CINAHL, EMBASE, MEDLINE, and Scopus. We identified 20 studies that examined the impact of …


Glutamate And Dysconnection In The Salience Network: Neurochemical, Effective Connectivity, And Computational Evidence In Schizophrenia, Roberto Limongi, Peter Jeon, Michael Mackinley, Tushar Das, Kara Dempster, Jean Théberge, Robert Bartha, Dickson Wong, Lena Palaniyappan Aug 2020

Glutamate And Dysconnection In The Salience Network: Neurochemical, Effective Connectivity, And Computational Evidence In Schizophrenia, Roberto Limongi, Peter Jeon, Michael Mackinley, Tushar Das, Kara Dempster, Jean Théberge, Robert Bartha, Dickson Wong, Lena Palaniyappan

Medical Biophysics Publications

Background: Functional dysconnection in schizophrenia is underwritten by a pathophysiology of the glutamate neurotransmission that affects the excitation-inhibition balance in key nodes of the salience network. Physiologically, this manifests as aberrant effective connectivity in intrinsic connections involving inhibitory interneurons. In computational terms, this produces a pathology of evidence accumulation and ensuing inference in the brain. Finally, the pathophysiology and aberrant inference would partially account for the psychopathology of schizophrenia as measured in terms of symptoms and signs. We refer to this formulation as the 3-level hypothesis. Methods: We tested the hypothesis in core nodes of the salience network (the dorsal …


Contemporary Strategies To Prevent Infection In Hip And Knee Arthroplasty, Lachlan M. Batty, Brent Lanting Aug 2020

Contemporary Strategies To Prevent Infection In Hip And Knee Arthroplasty, Lachlan M. Batty, Brent Lanting

Bone and Joint Institute

© 2020, Springer Science+Business Media, LLC, part of Springer Nature. Purpose of Review: Prosthetic joint infection (PJI) remains a serious concern in lower limb arthroplasty. Despite the significant consequences of PJI, the assessment of the safety and efficacy of preventative measures is challenging due to a low event rate. Notwithstanding, enormous efforts have been made in this arena, and prevention strategies continue to evolve. This review provides an update on contemporary literature (published within the last 5 years) pertaining to infection prevention in primary hip and knee arthroplasty. Recent Findings: Patient optimization has been highlighted as a critical preoperative factor …


A Large-Scale Fifteen-Year Minimum Survivorship Of A Cementless Triple Tapered Femoral Stem, Evangelos Tyrpenou, Amir Khoshbin, Shoaib Mohammad, Emil H. Schemitsch, James P. Waddell, Amit Atrey Aug 2020

A Large-Scale Fifteen-Year Minimum Survivorship Of A Cementless Triple Tapered Femoral Stem, Evangelos Tyrpenou, Amir Khoshbin, Shoaib Mohammad, Emil H. Schemitsch, James P. Waddell, Amit Atrey

Bone and Joint Institute

© 2020 Elsevier Inc. Background: This study reports the long-term outcomes of a metaphyseal fit-and-fill cementless femoral component in total hip arthroplasty (THA) with a follow-up of 15-19 years. Methods: We conducted a retrospective review of 376 consecutive THAs (345 patients), using a triple tapered stem performed between 2000 and 2003 with a view to assessing survivorship and radiological and functional outcomes. Images were assessed for initial alignment, terminal osteolysis, or subsidence, while clinical outcomes were assessed using the St Michael's Hip Score. Results: Forty-five (11.9%) hips were lost to follow-up, 20 (5.31%) had died before our 15-year cutoff follow-up, …


Clinical Outcomes After Anterior Cruciate Ligament Injury: Panther Symposium Acl Injury Clinical Outcomes Consensus Group, Eleonor Svantesson, Eric Hamrin Senorski, Kate E. Webster, Jón Karlsson, Theresa Diermeier, Benjamin B. Rothrauff, Sean J. Meredith, Thomas Rauer, James J. Irrgang, Kurt P. Spindler, C. Benjamin Ma, Volker Musahl, Freddie H. Fu, Olufemi R. Ayeni, Francesco Della Villa, Stefano Della Villa, Scott Dye, Mario Ferretti, Alan Getgood, Timo Järvelä, Christopher C. Kaeding, Ryosuke Kuroda, Bryson Lesniak, Robert G. Marx, Gregory B. Maletis, Leo Pinczewski, Anil Ranawat, Bruce Reider, Romain Seil, Carola Van Eck, Brian R. Wolf, Patrick Yung, Stefano Zaffagnini Aug 2020

Clinical Outcomes After Anterior Cruciate Ligament Injury: Panther Symposium Acl Injury Clinical Outcomes Consensus Group, Eleonor Svantesson, Eric Hamrin Senorski, Kate E. Webster, Jón Karlsson, Theresa Diermeier, Benjamin B. Rothrauff, Sean J. Meredith, Thomas Rauer, James J. Irrgang, Kurt P. Spindler, C. Benjamin Ma, Volker Musahl, Freddie H. Fu, Olufemi R. Ayeni, Francesco Della Villa, Stefano Della Villa, Scott Dye, Mario Ferretti, Alan Getgood, Timo Järvelä, Christopher C. Kaeding, Ryosuke Kuroda, Bryson Lesniak, Robert G. Marx, Gregory B. Maletis, Leo Pinczewski, Anil Ranawat, Bruce Reider, Romain Seil, Carola Van Eck, Brian R. Wolf, Patrick Yung, Stefano Zaffagnini

Bone and Joint Institute

© 2020, The Author(s). Purpose: A stringent outcome assessment is a key aspect for establishing evidence-based clinical guidelines for anterior cruciate ligament (ACL) injury treatment. The aim of this consensus statement was to establish what data should be reported when conducting an ACL outcome study, what specific outcome measurements should be used and at what follow-up time those outcomes should be assessed. Methods: To establish a standardized approach to assessment of clinical outcome after ACL treatment, a consensus meeting including a multidisciplinary group of ACL experts was held at the ACL Consensus Meeting Panther Symposium, Pittsburgh, PA; USA, in June …