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Association Of Guideline Publication And Delays To Treatment In Pediatric Status Epilepticus, Iván Sánchez Fernández, Réjean M Guerriero, Et Al Sep 2020

Association Of Guideline Publication And Delays To Treatment In Pediatric Status Epilepticus, Iván Sánchez Fernández, Réjean M Guerriero, Et Al

Open Access Publications

OBJECTIVE: To determine whether publication of evidence on delays in time to treatment shortens time to treatment in pediatric refractory convulsive status epilepticus (rSE), we compared time to treatment before (2011-2014) and after (2015-2019) publication of evidence of delays in treatment of rSE in the Pediatric Status Epilepticus Research Group (pSERG) as assessed by patient interviews and record review.

METHODS: We performed a retrospective analysis of a prospectively collected dataset from June 2011 to September 2019 on pediatric patients (1 month-21 years of age) with rSE.

RESULTS: We studied 328 patients (56% male) with median (25th-75th percentile [p

CONCLUSION: Publication …


Comparison Of Sars-Cov-2 Detection From Nasopharyngeal Swab Samples By The Roche Cobas 6800 Sars-Cov-2 Test And A Laboratory-Developed Real-Time Rt-Pcr Test, Elisabet Pujadas, Nnaemeka Ibeh, Matthew M Hernandez, Aneta Waluszko, Tatyana Sidorenko, Vanessa Flores, Biana Shiffrin, Numthip Chiu, Alicia Young-Francois, Michael D Nowak, Alberto E Paniz-Mondolfi, Emilia M Sordillo, Carlos Cordon-Cardo, Jane Houldsworth, Melissa R Gitman Sep 2020

Comparison Of Sars-Cov-2 Detection From Nasopharyngeal Swab Samples By The Roche Cobas 6800 Sars-Cov-2 Test And A Laboratory-Developed Real-Time Rt-Pcr Test, Elisabet Pujadas, Nnaemeka Ibeh, Matthew M Hernandez, Aneta Waluszko, Tatyana Sidorenko, Vanessa Flores, Biana Shiffrin, Numthip Chiu, Alicia Young-Francois, Michael D Nowak, Alberto E Paniz-Mondolfi, Emilia M Sordillo, Carlos Cordon-Cardo, Jane Houldsworth, Melissa R Gitman

Faculty, Staff and Student Publications

The urgent need to implement and rapidly expand testing for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection has led to the development of multiple assays. How these tests perform relative to one another is poorly understood. We evaluated the concordance between the Roche Diagnostics cobas 6800 SARS-CoV-2 test and a laboratory-developed test (LDT) real-time reverse transcription-polymerase chain reaction based on a modified Centers for Disease Control and Prevention protocol, for the detection of SARS-CoV-2 in samples submitted to the Clinical Laboratories of the Mount Sinai Health System. A total of 1006 nasopharyngeal swabs in universal transport medium from persons under …


Extracorporeal Membrane Oxygenation Utility In Postpartum Patients, Bindu Akkanti, Ismael A Salas De Armas, Ayaaz K Sachedina, Jennifer M Sunny, Mahmoud Samy Ahmed, Avaleen Kaur, Kha T Dinh, Rahat Hussain, Sachin Kumar, Sriram Nathan, Marwan Jumean, Manish K Patel, Mehmet H Akay, Jayeshkumar A Patel, Barbi Witz, John Zaki, Igor Banjac, Lisa Janowiak, Igor D Gregoric, Biswajit Kar Sep 2020

Extracorporeal Membrane Oxygenation Utility In Postpartum Patients, Bindu Akkanti, Ismael A Salas De Armas, Ayaaz K Sachedina, Jennifer M Sunny, Mahmoud Samy Ahmed, Avaleen Kaur, Kha T Dinh, Rahat Hussain, Sachin Kumar, Sriram Nathan, Marwan Jumean, Manish K Patel, Mehmet H Akay, Jayeshkumar A Patel, Barbi Witz, John Zaki, Igor Banjac, Lisa Janowiak, Igor D Gregoric, Biswajit Kar

Faculty, Staff and Student Publications

Although extracorporeal membrane oxygenation (ECMO) has been used in many different populations, its use in pregnant or postpartum patients has not been widely studied. This article reviews the ECMO experience in this population at a large urban hospital. Electronic medical records for all pregnant or postpartum patients who required ECMO between 2012 and 2019 were retrospectively reviewed. Data on clinical characteristics, outcomes, and complications were gathered. Comparisons between survivors and nonsurvivors were completed. Ten postpartum patients were identified. The patients presented as follows: four with cardiac arrest, one with a massive pulmonary embolism, three with acute respiratory distress syndrome (ARDS), …


Adrenal Insufficiency Is A Contraindication For Omalizumab Therapy In Mast Cell Activation Disease: Risk For Serum Sickness, G J Molderings, L B Weinstock, Et Al. Sep 2020

Adrenal Insufficiency Is A Contraindication For Omalizumab Therapy In Mast Cell Activation Disease: Risk For Serum Sickness, G J Molderings, L B Weinstock, Et Al.

2020-Current year OA Pubs

Omalizumab is an effective therapeutic humanized murine IgE antibody in many cases of primary systemic mast cell activation disease (MCAD). The present study should enable the clinician to recognize when treatment of MCAD with omalizumab is contraindicated because of the potential risk of severe serum sickness and to report our successful therapeutic strategy for such adverse event (AE). Our clinical observations, a review of the literature including the event reports in the FDA AE Reporting System, the European Medicines Agency Eudra-Vigilance databases (preferred search terms: omalizumab, Xolair®, and serum sickness) and information from the manufacturer's Novartis database were used. Omalizumab …


Nine-Year Prospective Efficacy And Safety Of Brain-Responsive Neurostimulation For Focal Epilepsy., Dileep R Nair, Kenneth D Laxer, Peter B Weber, Anthony M Murro, Yong D Park, Gregory L Barkley, Brien J Smith, Ryder P Gwinn, Michael J Doherty, Katherine H Noe, Richard S Zimmerman, Gregory K Bergey, William S Anderson, Christianne Heck, Charles Y Liu, Ricky W Lee, Toni Sadler, Robert B Duckrow, Lawrence J Hirsch, Robert E Wharen, William Tatum, Shraddha Srinivasan, Guy M Mckhann, Mark A Agostini, Andreas V Alexopoulos, Barbara C Jobst, David W Roberts, Vicenta Salanova, Thomas C Witt, Sydney S Cash, Andrew J Cole, Gregory A Worrell, Brian N Lundstrom, Jonathan C Edwards, Jonathan J Halford, David C Spencer, Lia Ernst, Christopher T Skidmore, Michael R Sperling, Ian Miller, Eric B Geller, Michel J Berg, A James Fessler, Paul Rutecki, Alica M Goldman, Eli M Mizrahi, Robert E Gross, Donald C Shields, Theodore H Schwartz, Douglas R Labar, Nathan B Fountain, W Jeff Elias, Piotr W Olejniczak, Nicole R Villemarette-Pittman, Stephan Eisenschenk, Steven N Roper, Jane G Boggs, Tracy A Courtney, Felice T Sun, Cairn G Seale, Kathy L Miller, Tara L Skarpaas, Martha J Morrell, Rns System Ltt Study Sep 2020

Nine-Year Prospective Efficacy And Safety Of Brain-Responsive Neurostimulation For Focal Epilepsy., Dileep R Nair, Kenneth D Laxer, Peter B Weber, Anthony M Murro, Yong D Park, Gregory L Barkley, Brien J Smith, Ryder P Gwinn, Michael J Doherty, Katherine H Noe, Richard S Zimmerman, Gregory K Bergey, William S Anderson, Christianne Heck, Charles Y Liu, Ricky W Lee, Toni Sadler, Robert B Duckrow, Lawrence J Hirsch, Robert E Wharen, William Tatum, Shraddha Srinivasan, Guy M Mckhann, Mark A Agostini, Andreas V Alexopoulos, Barbara C Jobst, David W Roberts, Vicenta Salanova, Thomas C Witt, Sydney S Cash, Andrew J Cole, Gregory A Worrell, Brian N Lundstrom, Jonathan C Edwards, Jonathan J Halford, David C Spencer, Lia Ernst, Christopher T Skidmore, Michael R Sperling, Ian Miller, Eric B Geller, Michel J Berg, A James Fessler, Paul Rutecki, Alica M Goldman, Eli M Mizrahi, Robert E Gross, Donald C Shields, Theodore H Schwartz, Douglas R Labar, Nathan B Fountain, W Jeff Elias, Piotr W Olejniczak, Nicole R Villemarette-Pittman, Stephan Eisenschenk, Steven N Roper, Jane G Boggs, Tracy A Courtney, Felice T Sun, Cairn G Seale, Kathy L Miller, Tara L Skarpaas, Martha J Morrell, Rns System Ltt Study

Neuroscience Articles

OBJECTIVE: To prospectively evaluate safety and efficacy of brain-responsive neurostimulation in adults with medically intractable focal onset seizures (FOS) over 9 years.

METHODS: Adults treated with brain-responsive neurostimulation in 2-year feasibility or randomized controlled trials were enrolled in a long-term prospective open label trial (LTT) to assess safety, efficacy, and quality of life (QOL) over an additional 7 years. Safety was assessed as adverse events (AEs), efficacy as median percent change in seizure frequency and responder rate, and QOL with the Quality of Life in Epilepsy (QOLIE-89) inventory.

RESULTS: Of 256 patients treated in the initial trials, 230 participated in …


The Role Of Glia In Protein Aggregation, Qingyun Li, Michael S Haney Sep 2020

The Role Of Glia In Protein Aggregation, Qingyun Li, Michael S Haney

2020-Current year OA Pubs

Protein aggregation diseases involve intracellular accumulation or extracellular deposition of certain protein species in neuronal or glial cells, leading to neurodegeneration and shortened lifespan. Prime examples include Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), and Huntington's disease (HD), which are affected by overlapping or specific aggregation-prone proteins. Mounting evidence suggests that dysfunctional glial cells may be major drivers for some diseases, and when they are not causal factors, they could still significantly exacerbate or alleviate disease progression by playing a plethora of detrimental or beneficial roles. Here we review the diverse functions performed by glial cells in …


Nine-Year Prospective Efficacy And Safety Of Brain-Responsive Neurostimulation For Focal Epilepsy, Dileep R Nair, Kenneth D Laxer, Peter B Weber, Anthony M Murro, Yong D Park, Gregory L Barkley, Brien J Smith, Ryder P Gwinn, Michael J Doherty, Katherine H Noe, Richard S Zimmerman, Gregory K Bergey, William S Anderson, Christianne Heck, Charles Y Liu, Ricky W Lee, Toni Sadler, Robert B Duckrow, Lawrence J Hirsch, Robert E Wharen, William Tatum, Shraddha Srinivasan, Guy M Mckhann, Mark A Agostini, Andreas V Alexopoulos, Barbara C Jobst, David W Roberts, Vicenta Salanova, Thomas C Witt, Sydney S Cash, Andrew J Cole, Gregory A Worrell, Brian N Lundstrom, Jonathan C Edwards, Jonathan J Halford, David C Spencer, Lia Ernst, Christopher T Skidmore, Michael R Sperling, Ian Miller, Eric B Geller, Michel J Berg, A James Fessler, Paul Rutecki, Alica M Goldman, Eli M Mizrahi, Robert E Gross, Donald C Shields, Theodore H Schwartz, Douglas R Labar, Nathan B Fountain, W Jeff Elias, Piotr W Olejniczak, Nicole R Villemarette-Pittman, Stephan Eisenschenk, Steven N Roper, Jane G Boggs, Tracy A Courtney, Felice T Sun, Cairn G Seale, Kathy L Miller, Tara L Skarpaas, Martha J Morrell, Rns System Ltt Study Sep 2020

Nine-Year Prospective Efficacy And Safety Of Brain-Responsive Neurostimulation For Focal Epilepsy, Dileep R Nair, Kenneth D Laxer, Peter B Weber, Anthony M Murro, Yong D Park, Gregory L Barkley, Brien J Smith, Ryder P Gwinn, Michael J Doherty, Katherine H Noe, Richard S Zimmerman, Gregory K Bergey, William S Anderson, Christianne Heck, Charles Y Liu, Ricky W Lee, Toni Sadler, Robert B Duckrow, Lawrence J Hirsch, Robert E Wharen, William Tatum, Shraddha Srinivasan, Guy M Mckhann, Mark A Agostini, Andreas V Alexopoulos, Barbara C Jobst, David W Roberts, Vicenta Salanova, Thomas C Witt, Sydney S Cash, Andrew J Cole, Gregory A Worrell, Brian N Lundstrom, Jonathan C Edwards, Jonathan J Halford, David C Spencer, Lia Ernst, Christopher T Skidmore, Michael R Sperling, Ian Miller, Eric B Geller, Michel J Berg, A James Fessler, Paul Rutecki, Alica M Goldman, Eli M Mizrahi, Robert E Gross, Donald C Shields, Theodore H Schwartz, Douglas R Labar, Nathan B Fountain, W Jeff Elias, Piotr W Olejniczak, Nicole R Villemarette-Pittman, Stephan Eisenschenk, Steven N Roper, Jane G Boggs, Tracy A Courtney, Felice T Sun, Cairn G Seale, Kathy L Miller, Tara L Skarpaas, Martha J Morrell, Rns System Ltt Study

Faculty, Staff and Students Publications

OBJECTIVE: To prospectively evaluate safety and efficacy of brain-responsive neurostimulation in adults with medically intractable focal onset seizures (FOS) over 9 years.

METHODS: Adults treated with brain-responsive neurostimulation in 2-year feasibility or randomized controlled trials were enrolled in a long-term prospective open label trial (LTT) to assess safety, efficacy, and quality of life (QOL) over an additional 7 years. Safety was assessed as adverse events (AEs), efficacy as median percent change in seizure frequency and responder rate, and QOL with the Quality of Life in Epilepsy (QOLIE-89) inventory.

RESULTS: Of 256 patients treated in the initial trials, 230 participated in …


The De Winter Ecg Pattern: Distribution And Morphology Of St Depression, Zhong-Qun Zhan, Yang Li, Li-Hong Han, Kjell C Nikus, Yochai Birnbaum, Adrian Baranchuk Sep 2020

The De Winter Ecg Pattern: Distribution And Morphology Of St Depression, Zhong-Qun Zhan, Yang Li, Li-Hong Han, Kjell C Nikus, Yochai Birnbaum, Adrian Baranchuk

Faculty, Staff and Students Publications

BACKGROUND: The reported positive predictive value (PPV) for the "de Winter ECG pattern" to predict an acute left anterior descending artery (LAD) lesion is inconsistent. Besides, the morphology of upsloping or nonupsloping ST depression (STD) may have different significance of severity and prognostication.

METHODS: We searched the MEDLINE database using "de Winter" or "junctional ST-depression with tall symmetrical T-waves" or "tall T wave" or "STEMI equivalent" as the item up to March 2020. We compared the ECG differences between the different culprit arteries and various morphological STD.

RESULTS: A total of 70 patients with analyzable ECGs were included. In 60 …


Aadc Deficiency From Infancy To Adulthood: Symptoms And Developmental Outcome In An International Cohort Of 63 Patients, Toni S Pearson, Laura Gilbert, Kathleen D Meeks, Et Al. Sep 2020

Aadc Deficiency From Infancy To Adulthood: Symptoms And Developmental Outcome In An International Cohort Of 63 Patients, Toni S Pearson, Laura Gilbert, Kathleen D Meeks, Et Al.

2020-Current year OA Pubs

Aromatic l-amino acid decarboxylase deficiency (AADCD) is a rare, autosomal recessive neurodevelopmental disorder characterized by impaired synthesis of dopamine, noradrenaline, adrenaline and serotonin, leading to a complex syndrome of motor, behavioral, and autonomic symptoms. This retrospective study assessed the symptoms and developmental outcome of a large international cohort of patients with AADCD via physician and/or caregiver responses to a detailed, standardized questionnaire. Sixty-three patients (60% female; ages 6 months-36 years, median 7 years; 58 living) from 23 individual countries participated. Common symptoms at onset (median age 3 months, range 0-12 months) were hypotonia, developmental delay, and/or oculogyric crises. Oculogyric crises …


A Germline Variant At 8q24 Contributes To Familial Clustering Of Prostate Cancer In Men Of African Ancestry, Burcu F Darst, Adam S Kibel, Bettina F Drake, Et Al. Sep 2020

A Germline Variant At 8q24 Contributes To Familial Clustering Of Prostate Cancer In Men Of African Ancestry, Burcu F Darst, Adam S Kibel, Bettina F Drake, Et Al.

2020-Current year OA Pubs

Although men of African ancestry have a high risk of prostate cancer (PCa), no genes or mutations have been identified that contribute to familial clustering of PCa in this population. We investigated whether the African ancestry-specific PCa risk variant at 8q24, rs72725854, is enriched in men with a PCa family history in 9052 cases, 143 cases from high-risk families, and 8595 controls of African ancestry. We found the risk allele to be significantly associated with earlier age at diagnosis, more aggressive disease, and enriched in men with a PCa family history (32% of high-risk familial cases carried the variant vs …


Combinatorial Pharmacogenomic Testing Improves Outcomes For Older Adults With Depression, Brent P Forester, Charles R Conway, Et Al Sep 2020

Combinatorial Pharmacogenomic Testing Improves Outcomes For Older Adults With Depression, Brent P Forester, Charles R Conway, Et Al

2020-Current year OA Pubs

OBJECTIVE: Evaluate the clinical utility of combinatorial pharmacogenomic testing for informing medication selection among older adults who have experienced antidepressant medication failure for major depressive disorder (MDD).

DESIGN: Post hoc analysis of data from a blinded, randomized controlled trial comparing two active treatment arms.

SETTING: Psychiatry specialty and primary care clinics across 60 U.S. community and academic sites.

PARTICIPANTS: Adults age 65 years or older at baseline (n = 206), diagnosed with MDD and inadequate response to at least one medication on the combinatorial pharmacogenomic test report during the current depressive episode.

INTERVENTION: Combinatorial pharmacogenomic testing to inform medication selection …


Dramatic Outcomes In Epilepsy: Depression, Suicide, Injuries, And Mortality, Boulenouar Mesraoua, Dirk Deleu, Al Hail Hassan, Melykian Gayane, Alsheikh Lubna, Musab Abdalhalim Ali, Torbjorn Tomson, Bassel Abou Khalil, J Helen Cross, Ali A Asadi-Pooya Sep 2020

Dramatic Outcomes In Epilepsy: Depression, Suicide, Injuries, And Mortality, Boulenouar Mesraoua, Dirk Deleu, Al Hail Hassan, Melykian Gayane, Alsheikh Lubna, Musab Abdalhalim Ali, Torbjorn Tomson, Bassel Abou Khalil, J Helen Cross, Ali A Asadi-Pooya

Department of Neurology Faculty Papers

In this narrative review, we will discuss some of the significant risks and dramatic consequences that are associated with epilepsy: depression, suicide, seizure-related injuries, and mortality, both in adults and in children. Considering the high prevalence of depression among people with epilepsy (PWE), routine and periodic screening of all PWE for early detection and appropriate management of depression is recommended. PWE should be screened for suicidal ideation regularly and when needed, patients should be referred for a psychiatric evaluation and treatment. When starting an antiepileptic drug (AED) or switching from one to another AED, patients should be advised to report …


Improved Tolerability Of Neratinib In Patients With Her2-Positive Early-Stage Breast Cancer: The Control Trial, C H Barcenas, R Bose, Et Al. Sep 2020

Improved Tolerability Of Neratinib In Patients With Her2-Positive Early-Stage Breast Cancer: The Control Trial, C H Barcenas, R Bose, Et Al.

2020-Current year OA Pubs

BACKGROUND: Neratinib is an irreversible pan-HER tyrosine kinase inhibitor approved for extended adjuvant treatment in early-stage HER2-positive breast cancer based on the phase III ExteNET study. In that trial, in which no antidiarrheal prophylaxis was mandated, grade 3 diarrhea was observed in 40% of patients and 17% discontinued due to diarrhea. The international, open-label, sequential-cohort, phase II CONTROL study is investigating several strategies to improve tolerability.

PATIENTS AND METHODS: Patients who completed trastuzumab-based adjuvant therapy received neratinib 240 mg/day for 1 year plus loperamide prophylaxis (days 1-28 or 1-56). Sequential cohorts evaluated additional budesonide or colestipol prophylaxis (days 1-28) and …


Impact Of Investigational Microbiota Therapeutic Rbx2660 On The Gut Microbiome And Resistome Revealed By A Placebo-Controlled Clinical Trial, Suryang Kwak, Joohee Choi, Tiffany Hink, Kimberly A Reske, Kenneth Blount, Courtney Jones, Margaret H Bost, Xiaoqing Sun, Carey-Ann D Burnham, Erik R Dubberke, Gautam Dantas, Cdc Prevention Epicenter Program Aug 2020

Impact Of Investigational Microbiota Therapeutic Rbx2660 On The Gut Microbiome And Resistome Revealed By A Placebo-Controlled Clinical Trial, Suryang Kwak, Joohee Choi, Tiffany Hink, Kimberly A Reske, Kenneth Blount, Courtney Jones, Margaret H Bost, Xiaoqing Sun, Carey-Ann D Burnham, Erik R Dubberke, Gautam Dantas, Cdc Prevention Epicenter Program

2020-Current year OA Pubs

BACKGROUND: Intestinal microbiota restoration can be achieved by complementing a subject's perturbed microbiota with that of a healthy donor. Recurrent Clostridioides difficile infection (rCDI) is one key application of such treatment. Another emerging application of interest is reducing antibiotic-resistant genes (ARGs) and organisms (AROs). In this study, we investigated fecal specimens from a multicenter, randomized, double-blind, placebo-controlled phase 2b study of microbiota-based investigational drug RBX2660. Patients were administered either placebo, 1 dose of RBX2660 and 1 placebo, or 2 doses of RBX2660 via enema and longitudinally tracked for changes in their microbiome and antibiotic resistome.

RESULTS: All patients exhibited significant …


Complete Chemical Structures Of Human Mitochondrial Trnas, Takeo Suzuki, Yuka Yashiro, Ittoku Kikuchi, Yuma Ishigami, Hironori Saito, Ikuya Matsuzawa, Shunpei Okada, Mari Mito, Shintaro Iwasaki, Ding Ma, Xuewei Zhao, Kana Asano, Huan Lin, Yohei Kirino, Yuriko Sakaguchi, Tsutomu Suzuki Aug 2020

Complete Chemical Structures Of Human Mitochondrial Trnas, Takeo Suzuki, Yuka Yashiro, Ittoku Kikuchi, Yuma Ishigami, Hironori Saito, Ikuya Matsuzawa, Shunpei Okada, Mari Mito, Shintaro Iwasaki, Ding Ma, Xuewei Zhao, Kana Asano, Huan Lin, Yohei Kirino, Yuriko Sakaguchi, Tsutomu Suzuki

Computational Medicine Center Faculty Papers

Mitochondria generate most cellular energy via oxidative phosphorylation. Twenty-two species of mitochondrial (mt-)tRNAs encoded in mtDNA translate essential subunits of the respiratory chain complexes. mt-tRNAs contain post-transcriptional modifications introduced by nuclear-encoded tRNA-modifying enzymes. They are required for deciphering genetic code accurately, as well as stabilizing tRNA. Loss of tRNA modifications frequently results in severe pathological consequences. Here, we perform a comprehensive analysis of post-transcriptional modifications of all human mt-tRNAs, including 14 previously-uncharacterized species. In total, we find 18 kinds of RNA modifications at 137 positions (8.7% in 1575 nucleobases) in 22 species of human mt-tRNAs. An up-to-date list of 34 …


Immune And Microrna Responses To Infection And Indole-3-Carbinol During Colitis, Rasha Raheem Alkarkoushi, Yvonne Hui, Abbas S. Tavakoli, Udai Singh, Prakash Nagarkatti, Mitzi Nagarkatti, Ioulia Chatzistamou, Marpe Bam, Traci L. Testerman Aug 2020

Immune And Microrna Responses To Infection And Indole-3-Carbinol During Colitis, Rasha Raheem Alkarkoushi, Yvonne Hui, Abbas S. Tavakoli, Udai Singh, Prakash Nagarkatti, Mitzi Nagarkatti, Ioulia Chatzistamou, Marpe Bam, Traci L. Testerman

Faculty Publications

BACKGROUND: Indole-3-carbinol (I3C) and other aryl hydrocarbon receptor agonists are known to modulate the immune system and ameliorate various inflammatory and autoimmune diseases in animal models, including colitis induced by dextran sulfate sodium (DSS). MicroRNAs (miRNAs) are also gaining traction as potential therapeutic agents or diagnostic elements. Enterohepatic (EHH) species are associated with an increased risk of inflammatory bowel disease, but little is known about how these species affect the immune system or response to treatment. AIM: To determine whether infection with an EHH species alters the response to I3C and how the immune and miRNA responses of an EHH …


Regional Correlation Of Biochemical Measures Of Amyloid And Tau Phosphorylation In The Brain, Kanta Horie, Nicolas R Barthélemy, Nipun Mallipeddi, Yan Li, Erin E Franklin, Richard J Perrin, Randall J Bateman, Chihiro Sato Aug 2020

Regional Correlation Of Biochemical Measures Of Amyloid And Tau Phosphorylation In The Brain, Kanta Horie, Nicolas R Barthélemy, Nipun Mallipeddi, Yan Li, Erin E Franklin, Richard J Perrin, Randall J Bateman, Chihiro Sato

2020-Current year OA Pubs

Alzheimer's disease (AD) neuropathologic change is characterized by amyloid plaques and neurofibrillary tangles (NFTs) that consist of aggregated amyloid beta (Abeta) and hyperphosphorylated tau proteins (p-tau), respectively. Although the global relationship between Abeta and p-tau has been studied for decades, it is still unclear whether a regional correlation exists between Abeta and p-tau in the human brain. Recent studies in cerebrospinal fluid (CSF) have suggested that tau phosphorylation at specific sites such as T217 is modified at an early stage of AD when amyloid plaques become detectable. We applied biochemical and mass spectrometry methods in human brain samples with and …


Genetic Variants And Functional Pathways Associated With Resilience To Alzheimer's Disease, Logan Dumitrescu, Carlos Cruchaga, Et Al Aug 2020

Genetic Variants And Functional Pathways Associated With Resilience To Alzheimer's Disease, Logan Dumitrescu, Carlos Cruchaga, Et Al

Open Access Publications

Approximately 30% of older adults exhibit the neuropathological features of Alzheimer's disease without signs of cognitive impairment. Yet, little is known about the genetic factors that allow these potentially resilient individuals to remain cognitively unimpaired in the face of substantial neuropathology. We performed a large, genome-wide association study (GWAS) of two previously validated metrics of cognitive resilience quantified using a latent variable modelling approach and representing better-than-predicted cognitive performance for a given level of neuropathology. Data were harmonized across 5108 participants from a clinical trial of Alzheimer's disease and three longitudinal cohort studies of cognitive ageing. All analyses were run …


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 …


Teaching Diagnostic Reasoning To Faculty Using An Assessment For Learning Tool: Training The Trainer, Adam Cohen, Moushumi Sur, Martin Weisse, Kathryn Moffett, Jeffrey Lancaster, Renee Saggio, Geeta Singhal, Satid Thammasitboon Aug 2020

Teaching Diagnostic Reasoning To Faculty Using An Assessment For Learning Tool: Training The Trainer, Adam Cohen, Moushumi Sur, Martin Weisse, Kathryn Moffett, Jeffrey Lancaster, Renee Saggio, Geeta Singhal, Satid Thammasitboon

Faculty, Staff and Students Publications

INTRODUCTION: There is a need for a standardized approach to understand and assess clinical reasoning in medical learners. The Assessment of Reasoning Tool was developed based on prevalent theories and frameworks using a multidisciplinary expert panel. As the tool provides a standardized rubric for assessing clinical reasoning, we designed an interactive train-the-trainer workshop for clinical educators and education leaders interested in improving their teaching skills and/or introducing curricula surrounding diagnostic reasoning.

METHODS: In this workshop, participants were exposed to the major domains of diagnostic reasoning and how to apply it to the assessment of a learner's skills. Kolb's experiential learning …


Structure And Mechanism Of A Unique Diiron Center In Mammalian Stearoyl-Coa Desaturase, Jiemin Shen, Gang Wu, Ah-Lim Tsai, Ming Zhou Aug 2020

Structure And Mechanism Of A Unique Diiron Center In Mammalian Stearoyl-Coa Desaturase, Jiemin Shen, Gang Wu, Ah-Lim Tsai, Ming Zhou

Faculty, Staff and Students Publications

Stearoyl-CoA desaturase 1 (SCD1) is a membrane-embedded metalloenzyme that catalyzes formation of a double-bond on a saturated acyl-CoA. SCD1 has a diiron center and its proper function requires an electron transport chain composed of NADH (or NADPH), cytochrome b5 reductase (b5R), and cytochrome b5 (cyt b5). Since SCD1 is a key regulator in fat metabolism and is required for survival of cancer cells, there is intense interest in targeting SCD1 for various metabolic diseases and cancers. Crystal structures of human and mouse SCD1 were reported recently, however, both proteins have two zinc ions instead of two iron ions in the …


More On Covid-19 In Immune-Mediated Inflammatory Diseases., Farren B. S. Briggs, Milena A. Gianfrancesco, Michaela F. George Aug 2020

More On Covid-19 In Immune-Mediated Inflammatory Diseases., Farren B. S. Briggs, Milena A. Gianfrancesco, Michaela F. George

Global Public Health | Faculty Scholarship

No abstract provided.


Long Term Survival And Local Control Outcomes From Single Dose Targeted Intraoperative Radiotherapy During Lumpectomy (Targit-Iort) For Early Breast Cancer: Targit-A Randomised Clinical Trial., Jayant S Vaidya, Max Bulsara, Michael Baum, Frederik Wenz, Samuele Massarut, Steffi Pigorsch, Michael Alvarado, Michael Douek, Christobel Saunders, Henrik L Flyger, Wolfgang Eiermann, Chris Brew-Graves, Norman R Williams, Ingrid Potyka, Nicholas Roberts, Marcelle Bernstein, Douglas Brown, Elena Sperk, Siobhan Laws, Marc Sütterlin, Tammy Corica, Steinar Lundgren, Dennis R Holmes, Lorenzo Vinante, Fernando Bozza, Montserrat Pazos, Magali Le Blanc-Onfroy, Günther Gruber, Wojciech Polkowski, Konstantin J Dedes, Marcus Niewald, Jens Blohmer, David Mccready, Richard Hoefer, Pond Kelemen, Gloria Petralia, Mary Falzon, David J Joseph, Jeffrey S Tobias Aug 2020

Long Term Survival And Local Control Outcomes From Single Dose Targeted Intraoperative Radiotherapy During Lumpectomy (Targit-Iort) For Early Breast Cancer: Targit-A Randomised Clinical Trial., Jayant S Vaidya, Max Bulsara, Michael Baum, Frederik Wenz, Samuele Massarut, Steffi Pigorsch, Michael Alvarado, Michael Douek, Christobel Saunders, Henrik L Flyger, Wolfgang Eiermann, Chris Brew-Graves, Norman R Williams, Ingrid Potyka, Nicholas Roberts, Marcelle Bernstein, Douglas Brown, Elena Sperk, Siobhan Laws, Marc Sütterlin, Tammy Corica, Steinar Lundgren, Dennis R Holmes, Lorenzo Vinante, Fernando Bozza, Montserrat Pazos, Magali Le Blanc-Onfroy, Günther Gruber, Wojciech Polkowski, Konstantin J Dedes, Marcus Niewald, Jens Blohmer, David Mccready, Richard Hoefer, Pond Kelemen, Gloria Petralia, Mary Falzon, David J Joseph, Jeffrey S Tobias

Articles, Abstracts, and Reports

OBJECTIVE: To determine whether risk adapted intraoperative radiotherapy, delivered as a single dose during lumpectomy, can effectively replace postoperative whole breast external beam radiotherapy for early breast cancer.

DESIGN: Prospective, open label, randomised controlled clinical trial.

SETTING: 32 centres in 10 countries in the United Kingdom, Europe, Australia, the United States, and Canada.

PARTICIPANTS: 2298 women aged 45 years and older with invasive ductal carcinoma up to 3.5 cm in size, cN0-N1, eligible for breast conservation and randomised before lumpectomy (1:1 ratio, blocks stratified by centre) to either risk adapted targeted intraoperative radiotherapy (TARGIT-IORT) or external beam radiotherapy (EBRT).

INTERVENTIONS: …


Interstage Home Monitoring For Infants With Single Ventricle Heart Disease: Education And Management: A Scientific Statement From The American Heart Association., Nancy A. Rudd, Nancy S. Ghanayem, Garick D. Hill, Linda M. Lambert, Kathleen A. Mussatto, Jo Ann Nieves, Sarah Robinson, Girish S. Shirali, Michelle M. Steltzer, Karen Uzark, Nancy A. Pike, American Heart Association Council On Cardiovascular And Stroke Nursing; Council On Lifelong Congenital Heart Disease And Heart Health In The Young; Council On Arteriosclerosis, Thrombosis And Vascular Biology; Council On Clinical Cardiology; And Council On Lifestyle And Cardiometabolic Health Aug 2020

Interstage Home Monitoring For Infants With Single Ventricle Heart Disease: Education And Management: A Scientific Statement From The American Heart Association., Nancy A. Rudd, Nancy S. Ghanayem, Garick D. Hill, Linda M. Lambert, Kathleen A. Mussatto, Jo Ann Nieves, Sarah Robinson, Girish S. Shirali, Michelle M. Steltzer, Karen Uzark, Nancy A. Pike, American Heart Association Council On Cardiovascular And Stroke Nursing; Council On Lifelong Congenital Heart Disease And Heart Health In The Young; Council On Arteriosclerosis, Thrombosis And Vascular Biology; Council On Clinical Cardiology; And Council On Lifestyle And Cardiometabolic Health

Manuscripts, Articles, Book Chapters and Other Papers

This scientific statement summarizes the current state of knowledge related to interstage home monitoring for infants with shunt-dependent single ventricle heart disease. Historically, the interstage period has been defined as the time of discharge from the initial palliative procedure to the time of second stage palliation. High mortality rates during the interstage period led to the implementation of in-home surveillance strategies to detect physiologic changes that may precede hemodynamic decompensation in interstage infants with single ventricle heart disease. Adoption of interstage home monitoring practices has been associated with significantly improved morbidity and mortality. This statement will review in-hospital readiness for …


Saturated Fats And Health: A Reassessment And Proposal For Food-Based Recommendations: Jacc State-Of-The-Art Review, Arne Astrup, Faidon Magkos, Dennis M Bier, J Thomas Brenna, Marcia C De Oliveira Otto, James O Hill, Janet C King, Andrew Mente, Jose M Ordovas, Jeff S Volek, Salim Yusuf, Ronald M Krauss Aug 2020

Saturated Fats And Health: A Reassessment And Proposal For Food-Based Recommendations: Jacc State-Of-The-Art Review, Arne Astrup, Faidon Magkos, Dennis M Bier, J Thomas Brenna, Marcia C De Oliveira Otto, James O Hill, Janet C King, Andrew Mente, Jose M Ordovas, Jeff S Volek, Salim Yusuf, Ronald M Krauss

Children’s Nutrition Research Center Staff Publications

The recommendation to limit dietary saturated fatty acid (SFA) intake has persisted despite mounting evidence to the contrary. Most recent meta-analyses of randomized trials and observational studies found no beneficial effects of reducing SFA intake on cardiovascular disease (CVD) and total mortality, and instead found protective effects against stroke. Although SFAs increase low-density lipoprotein (LDL) cholesterol, in most individuals, this is not due to increasing levels of small, dense LDL particles, but rather larger LDL particles, which are much less strongly related to CVD risk. It is also apparent that the health effects of foods cannot be predicted by their …


The Ubiquitin Ligase Cullin-1 Associates With Chromatin And Regulates Transcription Of Specific C-Myc Target Genes, Melanie A Sweeney, Polina Iakova, Laure Maneix, Fu-Yuan Shih, Hannah E Cho, Ergun Sahin, Andre Catic Aug 2020

The Ubiquitin Ligase Cullin-1 Associates With Chromatin And Regulates Transcription Of Specific C-Myc Target Genes, Melanie A Sweeney, Polina Iakova, Laure Maneix, Fu-Yuan Shih, Hannah E Cho, Ergun Sahin, Andre Catic

Faculty, Staff and Students Publications

Transcription is regulated through a dynamic interplay of DNA-associated proteins, and the composition of gene-regulatory complexes is subject to continuous adjustments. Protein alterations include post-translational modifications and elimination of individual polypeptides. Spatially and temporally controlled protein removal is, therefore, essential for gene regulation and accounts for the short half-life of many transcription factors. The ubiquitin-proteasome system is responsible for site- and target-specific ubiquitination and protein degradation. Specificity of ubiquitination is conferred by ubiquitin ligases. Cullin-RING complexes, the largest family of ligases, require multi-unit assembly around one of seven cullin proteins. To investigate the direct role of cullins in ubiquitination of …


Periacetabular Osteotomy With Or Without Arthroscopic Management In Patients With Hip Dysplasia: Study Protocol For A Multicenter Randomized Controlled Trial, Geoffrey P Wilkin, Stéphane Poitras, John Clohisy, Etienne Belzile, Ira Zaltz, George Grammatopoulos, Gerd Melkus, Kawan Rakhra, Tim Ramsay, Kednapa Thavorn, Paul E Beaulé Aug 2020

Periacetabular Osteotomy With Or Without Arthroscopic Management In Patients With Hip Dysplasia: Study Protocol For A Multicenter Randomized Controlled Trial, Geoffrey P Wilkin, Stéphane Poitras, John Clohisy, Etienne Belzile, Ira Zaltz, George Grammatopoulos, Gerd Melkus, Kawan Rakhra, Tim Ramsay, Kednapa Thavorn, Paul E Beaulé

2020-Current year OA Pubs

BACKGROUND: Hip dysplasia is one of the most common causes of hip arthritis. Its incidence is estimated to be between 3.6 and 12.8% (Canadian Institute for Health Information, Hip and knee replacements in Canada, 2017-2018: Canadian joint replacement registry annual report, 2019; Jacobsen and Sonne-Holm, Rheumatology 44:211-8, 2004). The Periacetabular Osteotomy (PAO) has been used successfully for over 30 years (Gosvig et al., J Bone Joint Surg Am 92:1162-9, 2010), but some patients continue to exhibit symptoms post-surgery (Wyles et al., Clin Orthop Relat Res 475:336-50, 2017). A hip arthroscopy, performed using a small camera, allows surgeons to address torn …


Artificial Intelligence For Rapid Meta-Analysis: Case Study On Ocular Toxicity Of Hydroxychloroquine., Matthew Michelson, Tiffany Chow, Neil A Martin, Mike Ross, Amelia Tee Qiao Ying, Steven Minton Aug 2020

Artificial Intelligence For Rapid Meta-Analysis: Case Study On Ocular Toxicity Of Hydroxychloroquine., Matthew Michelson, Tiffany Chow, Neil A Martin, Mike Ross, Amelia Tee Qiao Ying, Steven Minton

Articles, Abstracts, and Reports

BACKGROUND: Rapid access to evidence is crucial in times of an evolving clinical crisis. To that end, we propose a novel approach to answer clinical queries, termed rapid meta-analysis (RMA). Unlike traditional meta-analysis, RMA balances a quick time to production with reasonable data quality assurances, leveraging artificial intelligence (AI) to strike this balance.

OBJECTIVE: We aimed to evaluate whether RMA can generate meaningful clinical insights, but crucially, in a much faster processing time than traditional meta-analysis, using a relevant, real-world example.

METHODS: The development of our RMA approach was motivated by a currently relevant clinical question: is ocular toxicity and …


Deletion Rescue Resulting In Segmental Homozygosity: A Mechanism Underlying Discordant Nipt Results, Samantha Caldwell, Katelynn Sagaser, Zoe Nelson, Jennifer Frey, Jenna Wardrop, Theresa Boomer, Ron Mccullough, Stuart Schwartz Aug 2020

Deletion Rescue Resulting In Segmental Homozygosity: A Mechanism Underlying Discordant Nipt Results, Samantha Caldwell, Katelynn Sagaser, Zoe Nelson, Jennifer Frey, Jenna Wardrop, Theresa Boomer, Ron Mccullough, Stuart Schwartz

Research Administration Articles

With the increasing capabilities of non-invasive prenatal testing (NIPT), detection of sub-chromosomal deletions and duplications are possible. This case series of deletion rescues resulting in segmental homozygosity helps provide a biological explanation for NIPT discrepancies and adds to the dearth of existing literature surrounding segmental UPD cases and their underlying mechanisms. In the three cases presented here, NIPT reported a sub-chromosomal deletion (in isolation or as part of a complex finding). Diagnostic testing, however, revealed segmental homozygosity or UPD for the region reported deleted on NIPT. Postnatal placental testing was pursued in two cases and confirmed the NIPT findings. This …


Removal Of High Frequency Contamination From Motion Estimates In Single-Band Fmri Saves Data Without Biasing Functional Connectivity, Caterina Gratton, Ally Dworetsky, Rebecca S Coalson, Babatunde Adeyemo, Timothy O Laumann, Deanna M Barch, Nico U F Dosenbach, Abraham Z Snyder, Joel S Perlmutter, Steven E Petersen, Meghan C Campbell, Et Al. Aug 2020

Removal Of High Frequency Contamination From Motion Estimates In Single-Band Fmri Saves Data Without Biasing Functional Connectivity, Caterina Gratton, Ally Dworetsky, Rebecca S Coalson, Babatunde Adeyemo, Timothy O Laumann, Deanna M Barch, Nico U F Dosenbach, Abraham Z Snyder, Joel S Perlmutter, Steven E Petersen, Meghan C Campbell, Et Al.

2020-Current year OA Pubs

Denoising fMRI data requires assessment of frame-to-frame head motion and removal of the biases motion introduces. This is usually done through analysis of the parameters calculated during retrospective head motion correction (i.e., 'motion' parameters). However, it is increasingly recognized that respiration introduces factitious head motion via perturbations of the main (B0) field. This effect appears as higher-frequency fluctuations in the motion parameters (>0.1 ​Hz, here referred to as 'HF-motion'), primarily in the phase-encoding direction. This periodicity can sometimes be obscured in standard single-band fMRI (TR 2.0-2.5 ​s) due to aliasing. Here we examined (1) how prevalent HF-motion effects are …