Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Humans

Discipline
Institution
Publication Year
Publication
Publication Type
File Type

Articles 15601 - 15630 of 25882

Full-Text Articles in Medicine and Health Sciences

Severe Acute Respiratory Syndrome Coronavirus 2 (Sars-Cov-2) Testing And Detection During Peripartum Hospitalizations Among A Multicenter Cohort Of Pregnant Persons: March 2020-February 2021, Miranda J Delahoy, Flor Munoz, De-Kun Li, Carmen Sofia Arriola, Nanette Lee Bond, Michael Daugherty, Jeannette Ferber, Nickolas Ferguson, Louise Hadden, Jillian T Henderson, Stephanie A Irving, Mary Juergens, Venkatesh Kancharla, Mara Greenberg, Roxana Odouli, Gabriella Newes-Adeyi, Erin G Nicholson, Lawrence Reichle, Momodou Sanyang, Margaret Snead, Fatimah S Dawood, Allison L Naleway Feb 2023

Severe Acute Respiratory Syndrome Coronavirus 2 (Sars-Cov-2) Testing And Detection During Peripartum Hospitalizations Among A Multicenter Cohort Of Pregnant Persons: March 2020-February 2021, Miranda J Delahoy, Flor Munoz, De-Kun Li, Carmen Sofia Arriola, Nanette Lee Bond, Michael Daugherty, Jeannette Ferber, Nickolas Ferguson, Louise Hadden, Jillian T Henderson, Stephanie A Irving, Mary Juergens, Venkatesh Kancharla, Mara Greenberg, Roxana Odouli, Gabriella Newes-Adeyi, Erin G Nicholson, Lawrence Reichle, Momodou Sanyang, Margaret Snead, Fatimah S Dawood, Allison L Naleway

Faculty, Staff and Students Publications

BACKGROUND: Identifying severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections during peripartum hospitalizations is important to guide care, implement prevention measures, and understand infection burden.

METHODS: This cross-sectional analysis used electronic health record data from hospitalizations during which pregnancies ended (peripartum hospitalizations) among a cohort of pregnant persons at 3 US integrated healthcare networks (sites 1-3). Maternal demographic, medical encounter, SARS-CoV-2 testing, and pregnancy and neonatal outcome information was extracted for persons with estimated delivery and pregnancy end dates during March 2020-February 2021 and ≥1 antenatal care record. Site-stratified multivariable logistic regression was used to identify factors associated with testing …


Antibiotic Indications And Appropriateness In The Pediatric Intensive Care Unit: A 10-Center Point Prevalence Study, Kathleen Chiotos, Jennifer Blumenthal, Juri Boguniewicz, Debra L Palazzi, Erika L Stalets, Jessica H Rubens, Pranita D Tamma, Stephanie S Cabler, Jason Newland, Hillary Crandall, Emily Berkman, Robert P Kavanagh, Hannah R Stinson, Jeffrey S Gerber Feb 2023

Antibiotic Indications And Appropriateness In The Pediatric Intensive Care Unit: A 10-Center Point Prevalence Study, Kathleen Chiotos, Jennifer Blumenthal, Juri Boguniewicz, Debra L Palazzi, Erika L Stalets, Jessica H Rubens, Pranita D Tamma, Stephanie S Cabler, Jason Newland, Hillary Crandall, Emily Berkman, Robert P Kavanagh, Hannah R Stinson, Jeffrey S Gerber

Faculty, Staff and Students Publications

BACKGROUND: Antibiotics are prescribed to most pediatric intensive care unit (PICU) patients, but data describing indications and appropriateness of antibiotic orders in this population are lacking.

METHODS: We performed a multicenter point prevalence study that included children admitted to 10 geographically diverse PICUs over 4 study days in 2019. Antibiotic orders were reviewed for indication, and appropriateness was assessed using a standardized rubric.

RESULTS: Of 1462 patients admitted to participating PICUs, 843 (58%) had at least 1 antibiotic order. A total of 1277 antibiotic orders were reviewed. Common indications were empiric therapy for suspected bacterial infections without sepsis or septic …


Transfusing Convalescent Plasma As Post-Exposure Prophylaxis Against Severe Acute Respiratory Syndrome Coronavirus 2 (Sars-Cov-2) Infection: A Double-Blinded, Phase 2 Randomized, Controlled Trial, Shmuel Shoham, Evan M Bloch, Arturo Casadevall, Daniel Hanley, Bryan Lau, Kelly Gebo, Edward Cachay, Seble G Kassaye, James H Paxton, Jonathan Gerber, Adam C Levine, Arash Naeim, Judith Currier, Bela Patel, Elizabeth S Allen, Shweta Anjan, Lawrence Appel, Sheriza Baksh, Paul W Blair, Anthony Bowen, Patrick Broderick, Christopher A Caputo, Valerie Cluzet, Marie Elena Cordisco, Daniel Cruser, Stephan Ehrhardt, Donald Forthal, Yuriko Fukuta, Amy L Gawad, Thomas Gniadek, Jean Hammel, Moises A Huaman, Douglas A Jabs, Anne Jedlicka, Nicky Karlen, Sabra Klein, Oliver Laeyendecker, Karen Lane, Nichol Mcbee, Barry Meisenberg, Christian Merlo, Giselle Mosnaim, Han-Sol Park, Andrew Pekosz, Joann Petrini, William Rausch, David M Shade, Janna R Shapiro, J Robinson Singleton, Catherine Sutcliffe, David L Thomas, Anusha Yarava, Martin Zand, Jonathan M Zenilman, Aaron A R Tobian, David J Sullivan Feb 2023

Transfusing Convalescent Plasma As Post-Exposure Prophylaxis Against Severe Acute Respiratory Syndrome Coronavirus 2 (Sars-Cov-2) Infection: A Double-Blinded, Phase 2 Randomized, Controlled Trial, Shmuel Shoham, Evan M Bloch, Arturo Casadevall, Daniel Hanley, Bryan Lau, Kelly Gebo, Edward Cachay, Seble G Kassaye, James H Paxton, Jonathan Gerber, Adam C Levine, Arash Naeim, Judith Currier, Bela Patel, Elizabeth S Allen, Shweta Anjan, Lawrence Appel, Sheriza Baksh, Paul W Blair, Anthony Bowen, Patrick Broderick, Christopher A Caputo, Valerie Cluzet, Marie Elena Cordisco, Daniel Cruser, Stephan Ehrhardt, Donald Forthal, Yuriko Fukuta, Amy L Gawad, Thomas Gniadek, Jean Hammel, Moises A Huaman, Douglas A Jabs, Anne Jedlicka, Nicky Karlen, Sabra Klein, Oliver Laeyendecker, Karen Lane, Nichol Mcbee, Barry Meisenberg, Christian Merlo, Giselle Mosnaim, Han-Sol Park, Andrew Pekosz, Joann Petrini, William Rausch, David M Shade, Janna R Shapiro, J Robinson Singleton, Catherine Sutcliffe, David L Thomas, Anusha Yarava, Martin Zand, Jonathan M Zenilman, Aaron A R Tobian, David J Sullivan

Faculty, Staff and Students Publications

BACKGROUND: The efficacy of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) convalescent plasma (CCP) for preventing infection in exposed, uninfected individuals is unknown. CCP might prevent infection when administered before symptoms or laboratory evidence of infection.

METHODS: This double-blinded, phase 2 randomized, controlled trial (RCT) compared the efficacy and safety of prophylactic high titer (≥1:320 by Euroimmun ELISA) CCP with standard plasma. Asymptomatic participants aged ≥18 years with close contact exposure to a person with confirmed coronavirus disease 2019 (COVID-19) in the previous 120 hours and negative SARS-CoV-2 test within 24 hours before transfusion were eligible. The primary outcome was …


Bintrafusp Alfa: A Bifunctional Fusion Protein Targeting Pd-L1 And Tgf-Β, In Patients With Pretreated Colorectal Cancer: Results From A Phase I Trial, Alexander Spira, Michael S Wertheim, Edward J Kim, Benjamin Tan, Heinz-Josef Lenz, Petros Nikolinakos, Patricia L Rich, Genevieve Jehl, Andreas Machl, Rena Ito, James L Gulley, Scott Kopetz Feb 2023

Bintrafusp Alfa: A Bifunctional Fusion Protein Targeting Pd-L1 And Tgf-Β, In Patients With Pretreated Colorectal Cancer: Results From A Phase I Trial, Alexander Spira, Michael S Wertheim, Edward J Kim, Benjamin Tan, Heinz-Josef Lenz, Petros Nikolinakos, Patricia L Rich, Genevieve Jehl, Andreas Machl, Rena Ito, James L Gulley, Scott Kopetz

2020-Current year OA Pubs

Colorectal cancer (CRC) is a heterogeneous and complex disease with limited treatment options. Targeting transforming growth factor β (TGF-β) and programmed death ligand 1 pathways may enhance antitumor efficacy. Bintrafusp alfa is a first-in-class bifunctional fusion protein composed of the extracellular domain of TGF-β receptor II (a TGF-β "trap") fused to a human IgG1 monoclonal antibody blocking programmed cell death ligand 1. We report results from an expansion cohort of a phase I study (NCT02517398) in patients with heavily pretreated advanced CRC treated with bintrafusp alfa. As of May 15, 2020, 32 patients with advanced CRC had received bintrafusp alfa …


Bnt162b2 Mrna Vaccination Against Coronavirus Disease 2019 Is Associated With A Decreased Likelihood Of Multisystem Inflammatory Syndrome In Children Aged 5-18 Years-United States, July 2021 - April 2022, Laura D Zambrano, Margaret M Newhams, Samantha M Olson, Natasha B Halasa, Ashley M Price, Amber O Orzel, Cameron C Young, Julie A Boom, Leila C Sahni, Aline B Maddux, Katherine E Bline, Satoshi Kamidani, Keiko M Tarquinio, Kathleen Chiotos, Jennifer E Schuster, Melissa L Cullimore, Sabrina M Heidemann, Charlotte V Hobbs, Ryan A Nofziger, Pia S Pannaraj, Melissa A Cameron, Tracie C Walker, Stephanie P Schwartz, Kelly N Michelson, Bria M Coates, Heidi R Flori, Elizabeth H Mack, Laura Smallcomb, Shira J Gertz, Samina S Bhumbra, Tamara T Bradford, Emily R Levy, Michele Kong, Katherine Irby, Natalie Z Cvijanovich, Matt S Zinter, Cindy Bowens, Hillary Crandall, Janet R Hume, Manish M Patel, Angela P Campbell, Adrienne G Randolph, Overcoming Covid-19 Investigators Feb 2023

Bnt162b2 Mrna Vaccination Against Coronavirus Disease 2019 Is Associated With A Decreased Likelihood Of Multisystem Inflammatory Syndrome In Children Aged 5-18 Years-United States, July 2021 - April 2022, Laura D Zambrano, Margaret M Newhams, Samantha M Olson, Natasha B Halasa, Ashley M Price, Amber O Orzel, Cameron C Young, Julie A Boom, Leila C Sahni, Aline B Maddux, Katherine E Bline, Satoshi Kamidani, Keiko M Tarquinio, Kathleen Chiotos, Jennifer E Schuster, Melissa L Cullimore, Sabrina M Heidemann, Charlotte V Hobbs, Ryan A Nofziger, Pia S Pannaraj, Melissa A Cameron, Tracie C Walker, Stephanie P Schwartz, Kelly N Michelson, Bria M Coates, Heidi R Flori, Elizabeth H Mack, Laura Smallcomb, Shira J Gertz, Samina S Bhumbra, Tamara T Bradford, Emily R Levy, Michele Kong, Katherine Irby, Natalie Z Cvijanovich, Matt S Zinter, Cindy Bowens, Hillary Crandall, Janet R Hume, Manish M Patel, Angela P Campbell, Adrienne G Randolph, Overcoming Covid-19 Investigators

Faculty, Staff and Students Publications

BACKGROUND: Multisystem inflammatory syndrome in children (MIS-C), linked to antecedent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, is associated with considerable morbidity. Prevention of SARS-CoV-2 infection or coronavirus disease 2019 (COVID-19) by vaccination might also decrease MIS-C likelihood.

METHODS: In a multicenter, case-control, public health investigation of children ages 5-18 years hospitalized from 1 July 2021 to 7 April 2022, we compared the odds of being fully vaccinated (2 doses of BNT162b2 vaccine ≥28 days before hospital admission) between MIS-C case-patients and hospital-based controls who tested negative for SARS-CoV-2. These associations were examined by age group, timing of vaccination, …


Protection Of Messenger Rna Vaccines Against Hospitalized Coronavirus Disease 2019 In Adults Over The First Year Following Authorization In The United States, Mark W Tenforde, Hilary M Babcock, Jennie H Kwon, Et Al. Feb 2023

Protection Of Messenger Rna Vaccines Against Hospitalized Coronavirus Disease 2019 In Adults Over The First Year Following Authorization In The United States, Mark W Tenforde, Hilary M Babcock, Jennie H Kwon, Et Al.

2020-Current year OA Pubs

BACKGROUND: Coronavirus disease 2019 (COVID-19) messenger RNA (mRNA) vaccines were authorized in the United States in December 2020. Although vaccine effectiveness (VE) against mild infection declines markedly after several months, limited understanding exists on the long-term durability of protection against COVID-19-associated hospitalization.

METHODS: Case-control analysis of adults (≥18 years) hospitalized at 21 hospitals in 18 states 11 March-15 December 2021, including COVID-19 case patients and reverse transcriptase-polymerase chain reaction-negative controls. We included adults who were unvaccinated or vaccinated with 2 doses of a mRNA vaccine before the date of illness onset. VE over time was assessed using logistic regression comparing …


Body Mass Index And Molecular Subtypes Of Colorectal Cancer, Neil Murphy, Yin Cao, Et Al. Feb 2023

Body Mass Index And Molecular Subtypes Of Colorectal Cancer, Neil Murphy, Yin Cao, Et Al.

2020-Current year OA Pubs

BACKGROUND: Obesity is an established risk factor for colorectal cancer (CRC), but the evidence for the association is inconsistent across molecular subtypes of the disease.

METHODS: We pooled data on body mass index (BMI), tumor microsatellite instability status, CpG island methylator phenotype status, BRAF and KRAS mutations, and Jass classification types for 11 872 CRC cases and 11 013 controls from 11 observational studies. We used multinomial logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI) adjusted for covariables.

RESULTS: Higher BMI was associated with increased CRC risk (OR per 5 kg/m2 = 1.18, 95% CI = …


Hepatocytes Demarcated By Ephb2 Contribute To The Progression Of Nonalcoholic Steatohepatitis, Yang Xiao, Kirill Batmanov, Wenxiang Hu, Kun Zhu, Alexander Y Tom, Dongyin Guan, Chunjie Jiang, Lan Cheng, Sam J Mccright, Eric C Yang, Matthew R Lanza, Yifan Liu, David A Hill, Mitchell A Lazar Feb 2023

Hepatocytes Demarcated By Ephb2 Contribute To The Progression Of Nonalcoholic Steatohepatitis, Yang Xiao, Kirill Batmanov, Wenxiang Hu, Kun Zhu, Alexander Y Tom, Dongyin Guan, Chunjie Jiang, Lan Cheng, Sam J Mccright, Eric C Yang, Matthew R Lanza, Yifan Liu, David A Hill, Mitchell A Lazar

Faculty, Staff and Students Publications

Current therapeutic strategies for treating nonalcoholic steatohepatitis (NASH) have failed to alleviate liver fibrosis, which is a devastating feature leading to hepatic dysfunction. Here, we integrated single-nucleus transcriptomics and epigenomics to characterize all major liver cell types during NASH development in mice and humans. The bifurcation of hepatocyte trajectory with NASH progression was conserved between mice and humans. At the nonalcoholic fatty liver (NAFL) stage, hepatocytes exhibited metabolic adaptation, whereas at the NASH stage, a subset of hepatocytes was enriched for the signatures of cell adhesion and migration, which were mainly demarcated by receptor tyrosine kinase ephrin type B receptor …


Incidence, Attributable Mortality, And Healthcare And Out-Of-Pocket Costs Of Clostridioides Difficile Infection In Us Medicare Advantage Enrollees, Holly Yu, Tamuno Alfred, Jennifer L Nguyen, Jingying Zhou, Margaret A Olsen Feb 2023

Incidence, Attributable Mortality, And Healthcare And Out-Of-Pocket Costs Of Clostridioides Difficile Infection In Us Medicare Advantage Enrollees, Holly Yu, Tamuno Alfred, Jennifer L Nguyen, Jingying Zhou, Margaret A Olsen

2020-Current year OA Pubs

BACKGROUND: US attributable Clostridioides difficile infection (CDI) mortality and cost data are primarily from Medicare fee-for-service populations, and little is known about Medicare Advantage Enrollees (MAEs). This study evaluated CDI incidence among MAEs from 2012 to 2019 and determined attributable mortality and costs by comparing MAEs with and without CDI occurring in 2018.

METHODS: This retrospective cohort study assessed CDI incidence and associated mortality and costs for eligible MAEs ≥65 years of age using the de-identified Optum Clinformatics Data Mart database (Optum; Eden Prairie, Minnesota, USA). Outcomes included mortality, healthcare utilization, and costs, which were assessed via a propensity score-matched …


The Impact Of Universal Glove And Gown Use On Clostridioides Difficile Acquisition: A Cluster-Randomized Trial, Daniel J Morgan, Erik R Dubberke, Tiffany Hink, Gwen Paszkiewicz, Carey-Ann D Burnham, Lisa Pineles, Larry Magder, J Kristie Johnson, Surbhi Leekha, Anthony D Harris Feb 2023

The Impact Of Universal Glove And Gown Use On Clostridioides Difficile Acquisition: A Cluster-Randomized Trial, Daniel J Morgan, Erik R Dubberke, Tiffany Hink, Gwen Paszkiewicz, Carey-Ann D Burnham, Lisa Pineles, Larry Magder, J Kristie Johnson, Surbhi Leekha, Anthony D Harris

2020-Current year OA Pubs

BACKGROUND: Clostridioides difficile is the most common cause of healthcare-associated infections in the United States. It is unknown whether universal gown and glove use in intensive care units (ICUs) decreases acquisition of C. difficile.

METHODS: This was a secondary analysis of a cluster-randomized trial in 20 medical and surgical ICUs in 20 US hospitals from 4 January 2012 to 4 October 2012. After a baseline period, ICUs were randomized to standard practice for glove and gown use versus the intervention of all healthcare workers being required to wear gloves and gowns for all patient contact and when entering any patient …


Association Of Eating And Sleeping Intervals With Weight Change Over Time: The Daily24 Cohort., Di Zhao, Eliseo Guallar, Thomas B Woolf, Lindsay Martin, Harold Lehmann, Janelle Coughlin, Katherine Holzhauer, Attia A Goheer, Kathleen M Mctigue, Michelle R. Lent, Marquis Hawkins, Jeanne M Clark, Wendy L Bennett Feb 2023

Association Of Eating And Sleeping Intervals With Weight Change Over Time: The Daily24 Cohort., Di Zhao, Eliseo Guallar, Thomas B Woolf, Lindsay Martin, Harold Lehmann, Janelle Coughlin, Katherine Holzhauer, Attia A Goheer, Kathleen M Mctigue, Michelle R. Lent, Marquis Hawkins, Jeanne M Clark, Wendy L Bennett

PCOM Scholarly Works

Background We aim to evaluate the association between meal intervals and weight trajectory among adults from a clinical cohort. Methods and Results This is a multisite prospective cohort study of adults recruited from 3 health systems. Over the 6-month study period, 547 participants downloaded and used a mobile application to record the timing of meals and sleep for at least 1 day. We obtained information on weight and comorbidities at each outpatient visit from electronic health records for up to 10  years before until 10 months after baseline. We used mixed linear regression to model weight trajectories. Mean age was …


Evaluation Of Apparent Diffusion Coefficient Repeatability And Reproducibility For Preclinical Mris Using Standardized Procedures And A Diffusion-Weighted Imaging Phantom, Dariya Malyarenko, Ghoncheh Amouzandeh, Stephen Pickup, Rong Zhou, Henry Charles Manning, Seth T Gammon, Kooresh I Shoghi, James D Quirk, Renuka Sriram, Peder Larson, Michael T Lewis, Robia G Pautler, Paul E Kinahan, Mark Muzi, Thomas L Chenevert Feb 2023

Evaluation Of Apparent Diffusion Coefficient Repeatability And Reproducibility For Preclinical Mris Using Standardized Procedures And A Diffusion-Weighted Imaging Phantom, Dariya Malyarenko, Ghoncheh Amouzandeh, Stephen Pickup, Rong Zhou, Henry Charles Manning, Seth T Gammon, Kooresh I Shoghi, James D Quirk, Renuka Sriram, Peder Larson, Michael T Lewis, Robia G Pautler, Paul E Kinahan, Mark Muzi, Thomas L Chenevert

Faculty, Staff and Students Publications

Relevant to co-clinical trials, the goal of this work was to assess repeatability, reproducibility, and bias of the apparent diffusion coefficient (ADC) for preclinical MRIs using standardized procedures for comparison to performance of clinical MRIs. A temperature-controlled phantom provided an absolute reference standard to measure spatial uniformity of these performance metrics. Seven institutions participated in the study, wherein diffusion-weighted imaging (DWI) data were acquired over multiple days on 10 preclinical scanners, from 3 vendors, at 6 field strengths. Centralized versus site-based analysis was compared to illustrate incremental variance due to processing workflow. At magnet isocenter, short-term (intra-exam) and long-term (multiday) …


Evaluation Of New Potential Inflammatory Markers In Patients With Nonvalvular Atrial Fibrillation, Gabriela Lopes Martins, Rita Carolina Figueiredo Duarte, Érica Leandro Marciano Vieira, Natália Pessoa Rocha, Estêvão Lanna Figueiredo, Francisco Rezende Silveira, José Raymundo Sollero Caiaffa, Rodrigo Pinheiro Lanna, Maria Das Graças Carvalho, András Palotás, Cláudia Natália Ferreira, Helton José Reis Feb 2023

Evaluation Of New Potential Inflammatory Markers In Patients With Nonvalvular Atrial Fibrillation, Gabriela Lopes Martins, Rita Carolina Figueiredo Duarte, Érica Leandro Marciano Vieira, Natália Pessoa Rocha, Estêvão Lanna Figueiredo, Francisco Rezende Silveira, José Raymundo Sollero Caiaffa, Rodrigo Pinheiro Lanna, Maria Das Graças Carvalho, András Palotás, Cláudia Natália Ferreira, Helton José Reis

Faculty, Staff and Student Publications

Atrial fibrillation (AF), the most common arrhythmia in clinical practice, is associated with an increase in mortality and morbidity due to its high potential to cause stroke and systemic thromboembolism. Inflammatory mechanisms may play a role in the pathogenesis of AF and its maintenance. We aimed to evaluate a range of inflammatory markers as potentially involved in the pathophysiology of individuals with nonvalvular AF (NVAF). A total of 105 subjects were enrolled and divided into two groups: patients with NVAF (n = 55, mean age 72 ± 8 years) and a control group of individuals in sinus rhythm (n = …


Anxiety And Stress Among Healthcare Professionals During Covid-19 In Ethiopia: Systematic Review And Meta-Analysis, Aragaw Asfaw Hasen, Abubeker Alebachew Seid, Ahmed Adem Mohammed Feb 2023

Anxiety And Stress Among Healthcare Professionals During Covid-19 In Ethiopia: Systematic Review And Meta-Analysis, Aragaw Asfaw Hasen, Abubeker Alebachew Seid, Ahmed Adem Mohammed

Faculty, Staff and Student Publications

OBJECTIVE: This study intended to assess the impact of COVID-19 pandemic on anxiety and stress among healthcare professionals in Ethiopia.

DESIGN: This study applied a design of systematic review and meta-analysis of observational studies.

DATA SOURCES: ELIGIBILITY CRITERIA AND OUTCOMES: Observational studies examining anxiety and stress among healthcare professionals in Ethiopia following COVID-19 pandemic were considered. The primary outcomes were the prevalence of anxiety and stress and the secondary outcomes were factors associated to the prevalence of anxiety and stress.

DATA EXTRACTION AND SYNTHESIS: Two authors extracted the data and performed quality assessment independently. The Newcastle-Ottawa Scale was used to …


Magnetic Resonance Imaging-Derived Microvascular Perfusion Modeling To Assess Peripheral Artery Disease, Olga A Gimnich, Tatiana Belousova, Christina M Short, Addison A Taylor, Vijay Nambi, Joel D Morrisett, Christie M Ballantyne, Jean Bismuth, Dipan J Shah, Gerd Brunner Feb 2023

Magnetic Resonance Imaging-Derived Microvascular Perfusion Modeling To Assess Peripheral Artery Disease, Olga A Gimnich, Tatiana Belousova, Christina M Short, Addison A Taylor, Vijay Nambi, Joel D Morrisett, Christie M Ballantyne, Jean Bismuth, Dipan J Shah, Gerd Brunner

Faculty, Staff and Students Publications

Background

Computational fluid dynamics has shown good agreement with contrast‐enhanced magnetic resonance imaging measurements in cardiovascular disease applications. We have developed a biomechanical model of microvascular perfusion using contrast‐enhanced magnetic resonance imaging signal intensities derived from skeletal calf muscles to study peripheral artery disease (PAD).

Methods and Results

The computational microvascular model was used to study skeletal calf muscle perfusion in 56 individuals (36 patients with PAD, 20 matched controls). The recruited participants underwent contrast‐enhanced magnetic resonance imaging and ankle‐brachial index testing at rest and after 6‐minute treadmill walking. We have determined associations of microvascular model parameters including the transfer …


Metabolic Individuality: Limitations, Challenges, And Potential For Clinical Utility, Sarah H Elsea, Jennifer E Posey Feb 2023

Metabolic Individuality: Limitations, Challenges, And Potential For Clinical Utility, Sarah H Elsea, Jennifer E Posey

Faculty, Staff and Students Publications

In Nature Medicine, Surendran and colleagues recently reported the analysis of human plasma metabolomic data for 913 metabolites in ∼20,000 individuals, identifying 2,599 metabolite-genetic variant associations and >400 metabolite signatures comprised of jointly regulated metabolites. This extensive atlas of variant-metabolite relationships reveals novel genomic mechanisms driving metabolic phenotypes.


Evaluation Of Apparent Diffusion Coefficient Repeatability And Reproducibility For Preclinical Mris Using Standardized Procedures And A Diffusion-Weighted Imaging Phantom, Dariya Malyarenko, Ghoncheh Amouzandeh, Stephen Pickup, Rong Zhou, Henry Charles Manning, Seth T Gammon, Kooresh I Shoghi, James D Quirk, Renuka Sriram, Peder Larson, Michael T Lewis, Robia G Pautler, Paul E Kinahan, Mark Muzi, Thomas L Chenevert Feb 2023

Evaluation Of Apparent Diffusion Coefficient Repeatability And Reproducibility For Preclinical Mris Using Standardized Procedures And A Diffusion-Weighted Imaging Phantom, Dariya Malyarenko, Ghoncheh Amouzandeh, Stephen Pickup, Rong Zhou, Henry Charles Manning, Seth T Gammon, Kooresh I Shoghi, James D Quirk, Renuka Sriram, Peder Larson, Michael T Lewis, Robia G Pautler, Paul E Kinahan, Mark Muzi, Thomas L Chenevert

2020-Current year OA Pubs

Relevant to co-clinical trials, the goal of this work was to assess repeatability, reproducibility, and bias of the apparent diffusion coefficient (ADC) for preclinical MRIs using standardized procedures for comparison to performance of clinical MRIs. A temperature-controlled phantom provided an absolute reference standard to measure spatial uniformity of these performance metrics. Seven institutions participated in the study, wherein diffusion-weighted imaging (DWI) data were acquired over multiple days on 10 preclinical scanners, from 3 vendors, at 6 field strengths. Centralized versus site-based analysis was compared to illustrate incremental variance due to processing workflow. At magnet isocenter, short-term (intra-exam) and long-term (multiday) …


Fifty Years Of Global Cardiovascular Research In Africa: A Scientometric Analysis, 1971 To 2021, Jean Jacques Noubiap, Dominic Millenaar, Dike Ojji, Q Eileen Wafford, Christian Ukena, Michael Böhm, Karen Sliwa, Mark D Huffman, Felix Mahfoud Feb 2023

Fifty Years Of Global Cardiovascular Research In Africa: A Scientometric Analysis, 1971 To 2021, Jean Jacques Noubiap, Dominic Millenaar, Dike Ojji, Q Eileen Wafford, Christian Ukena, Michael Böhm, Karen Sliwa, Mark D Huffman, Felix Mahfoud

2020-Current year OA Pubs

Background To analyze the quantity and impact of cardiovascular research done in Africa or coauthored by researchers based in Africa, their determinants, and the patterns of research collaboration. Methods and Results We retrieved data from Web of Science and additional sources. We analyzed temporal trends from 1971 to 2021 and geographical distribution, research impact using country-level h-index, international research cooperation, and associations of research quantity and quality using linear regression. The annual volume of cardiovascular research from Africa has increased from 4 publications in 1971 to 3867 in 2020 and currently represents ~3% of the global cardiovascular research output. Authors …


Structures Of Human Gastrin-Releasing Peptide Receptors Bound To Antagonist And Agonist For Cancer And Itch Therapy, Shuman Peng, Yuting Zhan, Dongqi Zhang, Lu Ren, Anqi Chen, Zhou-Feng Chen, Haitao Zhang Feb 2023

Structures Of Human Gastrin-Releasing Peptide Receptors Bound To Antagonist And Agonist For Cancer And Itch Therapy, Shuman Peng, Yuting Zhan, Dongqi Zhang, Lu Ren, Anqi Chen, Zhou-Feng Chen, Haitao Zhang

2020-Current year OA Pubs

Gastrin releasing peptide receptor (GRPR), a member of the bombesin (BBN) G protein-coupled receptors, is aberrantly overexpressed in several malignant tumors, including those of the breast, prostate, pancreas, lung, and central nervous system. Additionally, it also mediates non-histaminergic itch and pathological itch conditions in mice. Thus, GRPR could be an attractive target for cancer and itch therapy. Here, we report the inactive state crystal structure of human GRPR in complex with the non-peptide antagonist PD176252, as well as two active state cryo-electron microscopy (cryo-EM) structures of GRPR bound to the endogenous peptide agonist gastrin-releasing peptide and the synthetic BBN analog …


Prognostic Significance Of Early Platelet Dynamics In Staphylococcus Aureus Bacteremia, Rachid Douglas-Louis, Mimi Lou, Brian Lee, Emi Minejima, Juliane Bubeck-Wardenburg, Annie Wong-Beringer Feb 2023

Prognostic Significance Of Early Platelet Dynamics In Staphylococcus Aureus Bacteremia, Rachid Douglas-Louis, Mimi Lou, Brian Lee, Emi Minejima, Juliane Bubeck-Wardenburg, Annie Wong-Beringer

2020-Current year OA Pubs

BACKGROUND: Platelets are recognized as key immune effectors, but they are targets of bacterial virulence factors. In the present study, we aimed to examine the relationship between early platelet dynamics and the outcome of Staphylococcus aureus bacteremia (SAB).

METHOD: Electronic medical records of adult patients hospitalized for SAB between July 2012 and November 2020 were retrospectively reviewed for relevant demographic, laboratory, and clinical data. The outcome endpoints were mortality and microbial persistence.

RESULTS: Among the 811 patients evaluated, 29% experienced thrombocytopenia on Day 1. Platelet count nadir occurred on Days 2-3 following SAB onset, and Day 4 was a determining …


Bone Metastasis Initiation Is Coupled With Bone Remodeling Through Osteogenic Differentiation Of Ng2+ Cells, Weijie Zhang, Zhan Xu, Xiaoxin Hao, Tiancheng He, Jiasong Li, Yichao Shen, Kai Liu, Yang Gao, Jun Liu, David G Edwards, Aaron M Muscarella, Ling Wu, Liqun Yu, Longyong Xu, Xi Chen, Yi-Hsuan Wu, Igor L Bado, Yunfeng Ding, Sergio Aguirre, Hai Wang, Zbigniew Gugala, Robert L Satcher, Stephen T C Wong, Xiang H-F Zhang Feb 2023

Bone Metastasis Initiation Is Coupled With Bone Remodeling Through Osteogenic Differentiation Of Ng2+ Cells, Weijie Zhang, Zhan Xu, Xiaoxin Hao, Tiancheng He, Jiasong Li, Yichao Shen, Kai Liu, Yang Gao, Jun Liu, David G Edwards, Aaron M Muscarella, Ling Wu, Liqun Yu, Longyong Xu, Xi Chen, Yi-Hsuan Wu, Igor L Bado, Yunfeng Ding, Sergio Aguirre, Hai Wang, Zbigniew Gugala, Robert L Satcher, Stephen T C Wong, Xiang H-F Zhang

Faculty, Staff and Students Publications

The bone microenvironment is dynamic and undergoes remodeling in normal and pathologic conditions. Whether such remodeling affects disseminated tumor cells (DTC) and bone metastasis remains poorly understood. Here, we demonstrated that pathologic fractures increase metastatic colonization around the injury. NG2+ cells are a common participant in bone metastasis initiation and bone remodeling in both homeostatic and fractured conditions. NG2+ bone mesenchymal stem/stromal cells (BMSC) often colocalize with DTCs in the perivascular niche. Both DTCs and NG2+ BMSCs are recruited to remodeling sites. Ablation of NG2+ lineage impaired bone remodeling and concurrently diminished metastatic colonization. In cocultures, NG2+ BMSCs, especially when …


Dynamic Cone-Beam Ct Reconstruction Using Spatial And Temporal Implicit Neural Representation Learning (Stinr), You Zhang, Hua-Chieh Shao, Tinsu Pan, Tielige Mengke Feb 2023

Dynamic Cone-Beam Ct Reconstruction Using Spatial And Temporal Implicit Neural Representation Learning (Stinr), You Zhang, Hua-Chieh Shao, Tinsu Pan, Tielige Mengke

Faculty, Staff and Student Publications

Objective. Dynamic cone-beam CT (CBCT) imaging is highly desired in image-guided radiation therapy to provide volumetric images with high spatial and temporal resolutions to enable applications including tumor motion tracking/prediction and intra-delivery dose calculation/accumulation. However, dynamic CBCT reconstruction is a substantially challenging spatiotemporal inverse problem, due to the extremely limited projection sample available for each CBCT reconstruction (one projection for one CBCT volume).

Approach. We developed a simultaneous spatial and temporal implicit neural representation (STINR) method for dynamic CBCT reconstruction. STINR mapped the unknown image and the evolution of its motion into spatial and temporal multi-layer perceptrons (MLPs), and …


Patient-Reported Symptoms At Discharge And Risk Of Complications After Gynecologic Surgery, Xin Shelley Wang, Pedro T Ramirez, Qiuling Shi, Mona Kamal, Araceli Garcia-Gonzalez, Maria D Iniesta, Charles S Cleeland, Larissa A Meyer Feb 2023

Patient-Reported Symptoms At Discharge And Risk Of Complications After Gynecologic Surgery, Xin Shelley Wang, Pedro T Ramirez, Qiuling Shi, Mona Kamal, Araceli Garcia-Gonzalez, Maria D Iniesta, Charles S Cleeland, Larissa A Meyer

Faculty, Staff and Student Publications

Objective: Current gaps in knowledge limit clinicians from fully implementing patient-reported outcomes in routine post-operative care.

Methods: This prospective study assessed symptoms via the gynecologic module of the MD Anderson Symptom Inventory (MDASI-PeriOp-GYN) in patients who underwent open laparotomy.

Results: At discharge, patient-reported moderate to severe (≥4 on a 0-10 scale) abdominal bloating or abdominal cramping, combined with length of stay of ≥4 days, were found to be associated with a higher risk of 30-day post-operative grade II-IV complications by the Clavien-Dindo system (all p values < 0.01). Also, length of stay of ≥4 days and moderate to severe urinary urgency at discharge were found to be associated with the need for re-admission (all p values < 0.01).

Conclusion: This study defined the clinically meaningful symptoms that related to the risk of …


Antitumour Activity Of Neratinib In Patients With Her2-Mutant Advanced Biliary Tract Cancers, James J Harding, Haeseong Park, Et Al. Feb 2023

Antitumour Activity Of Neratinib In Patients With Her2-Mutant Advanced Biliary Tract Cancers, James J Harding, Haeseong Park, Et Al.

2020-Current year OA Pubs

HER2 mutations are infrequent genomic events in biliary tract cancers (BTCs). Neratinib, an irreversible, pan-HER, oral tyrosine kinase inhibitor, interferes with constitutive receptor kinase activation and has activity in HER2-mutant tumours. SUMMIT is an open-label, single-arm, multi-cohort, phase 2, 'basket' trial of neratinib in patients with solid tumours harbouring oncogenic HER2 somatic mutations (ClinicalTrials.gov: NCT01953926). The primary objective of the BTC cohort, which is now complete, is first objective response rate (ORR) to neratinib 240 mg orally daily. Secondary objectives include confirmed ORR, clinical benefit rate, progression-free survival, duration of response, overall survival, safety and tolerability. Genomic analyses were exploratory. …


Widespread Contribution Of Transposable Elements To The Rewiring Of Mammalian 3d Genomes, Mayank N K Choudhary, Kara Quaid, Xiaoyun Xing, Heather Schmidt, Ting Wang Feb 2023

Widespread Contribution Of Transposable Elements To The Rewiring Of Mammalian 3d Genomes, Mayank N K Choudhary, Kara Quaid, Xiaoyun Xing, Heather Schmidt, Ting Wang

2020-Current year OA Pubs

Transposable elements (TEs) are major contributors of genetic material in mammalian genomes. These often include binding sites for architectural proteins, including the multifarious master protein, CTCF, which shapes the 3D genome by creating loops, domains, compartment borders, and RNA-DNA interactions. These play a role in the compact packaging of DNA and have the potential to facilitate regulatory function. In this study, we explore the widespread contribution of TEs to mammalian 3D genomes by quantifying the extent to which they give rise to loops and domain border differences across various cell types and species using several 3D genome mapping technologies. We …


Loci On Chromosome 12q132 Encompassing Erbb3, Pa2g4 And Rab5b Are Associated With Polycystic Ovary Syndrome, R Alan Harris, Kellie J Archer, Mark O Goodarzi, Timothy P York, Jeffrey Rogers, Andrea Dunaif, Jan M Mcallister, Jerome F Strauss Feb 2023

Loci On Chromosome 12q132 Encompassing Erbb3, Pa2g4 And Rab5b Are Associated With Polycystic Ovary Syndrome, R Alan Harris, Kellie J Archer, Mark O Goodarzi, Timothy P York, Jeffrey Rogers, Andrea Dunaif, Jan M Mcallister, Jerome F Strauss

Faculty, Staff and Students Publications

Polycystic ovary syndrome (PCOS) is characterized by hyperandrogenemia of ovarian theca cell origin. We report significant association of androgen production with 15 single nucleotide variants (SNVs) identified by exome sequencing of theca cells from women with PCOS and normal ovulatory women. Ten SNVs are located within a 150 kbp region on 12q13.2 which encompasses loci identified in PCOS genome-wide association studies (GWAS) and contains PCOS candidate genes ERBB3 and RAB5B. The region also contains PA2G4 which encodes a transcriptional corepressor of androgen receptor and androgen receptor-regulated genes. PA2G4 has not previously been recognized as related to PCOS in published …


Factors For Poor Oral Health In Long-Term Childhood Cancer Survivors, Tushar Patni, Chun-Teh Lee, Yimei Li, Sue Kaste, Liang Zhu, Ryan Sun, Melissa M Hudson, Kirsten K Ness, Ana Neumann, Leslie L Robison Feb 2023

Factors For Poor Oral Health In Long-Term Childhood Cancer Survivors, Tushar Patni, Chun-Teh Lee, Yimei Li, Sue Kaste, Liang Zhu, Ryan Sun, Melissa M Hudson, Kirsten K Ness, Ana Neumann, Leslie L Robison

Faculty, Staff and Student Publications

Background: Survivors of childhood cancer are at risk for therapy-related dental diseases. The purpose of the study was to investigate the associations between clinical, socioeconomic, and demographic factors and oral diseases in the St. Jude Lifetime Cohort (SJLIFE) participants.

Methods: We performed a retrospective medical chart review and evaluated longitudinal self-reported dental outcomes in 4856 childhood cancer survivors and 591 community controls participating in the St. Jude Lifetime Cohort (SJLIFE) study. Univariate and multivariable logistic regression models were used to assess the impact of socioeconomic factors, treatment exposures and patient demographics on dental outcomes.

Results: Cancer survivors were more likely …


Preclinical Efficacy Of A Parp-1 Targeted Auger-Emitting Radionuclide In Prostate Cancer, Sreeja Sreekumar, Dong Zhou, Cedric Mpoy, Elsa Schenk, Jalen Scott, Jeffrey M Arbeit, Jinbin Xu, Buck E Rogers Feb 2023

Preclinical Efficacy Of A Parp-1 Targeted Auger-Emitting Radionuclide In Prostate Cancer, Sreeja Sreekumar, Dong Zhou, Cedric Mpoy, Elsa Schenk, Jalen Scott, Jeffrey M Arbeit, Jinbin Xu, Buck E Rogers

2020-Current year OA Pubs

There is an unmet need for better therapeutic strategies for advanced prostate cancer. Poly (ADP-ribose) polymerase-1 (PARP-1) is a chromatin-binding DNA repair enzyme overexpressed in prostate cancer. This study evaluates whether PARP-1, on account of its proximity to the cell's DNA, would be a good target for delivering high-linear energy transfer Auger radiation to induce lethal DNA damage in prostate cancer cells. We analyzed the correlation between PARP-1 expression and Gleason score in a prostate cancer tissue microarray. A radio-brominated Auger emitting inhibitor ([


Response To: What Is Missing From The 2022 Practice Recommendation Updates From The World Consensus Conference On Bia-Alcl?, Fabio Santanelli Di Pompeo, Mark W Clemens, Michael Atlan, Giovanni Botti, Peter G Cordeiro, Daphne De Jong, Arianna Di Napoli, Dennis Hammond, Cara L Haymaker, Steven M Horwitz, Kelly Hunt, Peter Lennox, Patrick Mallucci, Roberto N Miranda, Alexandre M Munhoz, Demosthenes Panagiotakos, Eric C Swanson, Suzanne D Turner, Guido Firmani, Michail Sorotos Feb 2023

Response To: What Is Missing From The 2022 Practice Recommendation Updates From The World Consensus Conference On Bia-Alcl?, Fabio Santanelli Di Pompeo, Mark W Clemens, Michael Atlan, Giovanni Botti, Peter G Cordeiro, Daphne De Jong, Arianna Di Napoli, Dennis Hammond, Cara L Haymaker, Steven M Horwitz, Kelly Hunt, Peter Lennox, Patrick Mallucci, Roberto N Miranda, Alexandre M Munhoz, Demosthenes Panagiotakos, Eric C Swanson, Suzanne D Turner, Guido Firmani, Michail Sorotos

Faculty, Staff and Student Publications

No abstract provided.


Spatial Regulation Of The Glycocalyx Component Podocalyxin Is A Switch For Prometastatic Function, Alvaro Román-Fernández, Mohammed A Mansour, Fernanda G Kugeratski, Jayanthi Anand, Emma Sandilands, Laura Galbraith, Kai Rakovic, Eva C Freckmann, Erin M Cumming, Ji Park, Konstantina Nikolatou, Sergio Lilla, Robin Shaw, David Strachan, Susan Mason, Rachana Patel, Lynn Mcgarry, Archana Katoch, Kirsteen J Campbell, Colin Nixon, Crispin J Miller, Hing Y Leung, John Le Quesne, James C Norman, Sara Zanivan, Karen Blyth, David M Bryant Feb 2023

Spatial Regulation Of The Glycocalyx Component Podocalyxin Is A Switch For Prometastatic Function, Alvaro Román-Fernández, Mohammed A Mansour, Fernanda G Kugeratski, Jayanthi Anand, Emma Sandilands, Laura Galbraith, Kai Rakovic, Eva C Freckmann, Erin M Cumming, Ji Park, Konstantina Nikolatou, Sergio Lilla, Robin Shaw, David Strachan, Susan Mason, Rachana Patel, Lynn Mcgarry, Archana Katoch, Kirsteen J Campbell, Colin Nixon, Crispin J Miller, Hing Y Leung, John Le Quesne, James C Norman, Sara Zanivan, Karen Blyth, David M Bryant

Faculty, Staff and Student Publications

The glycocalyx component and sialomucin podocalyxin (PODXL) is required for normal tissue development by promoting apical membranes to form between cells, triggering lumen formation. Elevated PODXL expression is also associated with metastasis and poor clinical outcome in multiple tumor types. How PODXL presents this duality in effect remains unknown. We identify an unexpected function of PODXL as a decoy receptor for galectin-3 (GAL3), whereby the PODXL-GAL3 interaction releases GAL3 repression of integrin-based invasion. Differential cortical targeting of PODXL, regulated by ubiquitination, is the molecular mechanism controlling alternate fates. Both PODXL high and low surface levels occur in parallel subpopulations within …