Digital Commons Network^™

Association Of Blood Pressure Variability And Diuretics With Cardiovascular Events In Patients With Chronic Kidney Disease Stages 1-5, L Parker Gregg, S Susan Hedayati, Hui Yang, Peter N Van Buren, Subhash Banerjee, Sankar D Navaneethan, Salim S Virani, Wolfgang C Winkelmayer, Carlos A Alvarez

Faculty, Staff and Students Publications

Visit-to-visit blood pressure variability (BPV) is associated with cardiovascular events in the general population. Data are scarce in chronic kidney disease (CKD). We hypothesized that BPV would be associated with cardiovascular outcomes, death, and end-stage kidney disease (ESKD) and that diuretics would modify these associations in patients with CKD.

We studied U.S. Veterans with non-dialysis CKD stages 1-5 and hypertension on non-diuretic antihypertensive monotherapy. At the time of second antihypertensive agent prescription, we propensity-matched for exposure to a loop or thiazide diuretic vs. any other antihypertensive. BPV was defined as the coefficient of variation of systolic blood pressure over …

Alterations In Acylcarnitines, Amines, And Lipids Inform About The Mechanism Of Action Of Citalopram/Escitalopram In Major Depression, Siamak Mahmoudiandehkordi, Ahmed T. Ahmed, Sudeepa Bhattacharyya, Xianlin Han, Rebecca A. Baillie, Matthias Arnold, Michelle K. Skime, Lisa St John-Williams, M Arthur Moseley, J Will Thompson, Gregory Louie, Patricio Riva-Posse, W Edward Craighead, William Mcdonald, Ranga Krishnan, A John Rush, Mark A. Frye, Boadie W. Dunlop, Richard M. Weinshilboum, Rima Kaddurah-Daouk

Arkansas Biosciences Institute

Selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment for major depressive disorder (MDD), yet their mechanisms of action are not fully understood and their therapeutic benefit varies among individuals. We used a targeted metabolomics approach utilizing a panel of 180 metabolites to gain insights into mechanisms of action and response to citalopram/escitalopram. Plasma samples from 136 participants with MDD enrolled into the Mayo Pharmacogenomics Research Network Antidepressant Medication Pharmacogenomic Study (PGRN-AMPS) were profiled at baseline and after 8 weeks of treatment. After treatment, we saw increased levels of short-chain acylcarnitines and decreased levels of medium-chain and long-chain acylcarnitines, suggesting …

Severe Acute Respiratory Syndrome Coronavirus 2-Induced Acute Aortic Occlusion: A Case Report, Artem Minalyan, Franklin L. Thelmo, Vincent Chan, Stephanie Tzarnas, Faizan Ahmed

Department of Medicine Faculty Papers

Background: Severe acute respiratory syndrome coronavirus 2 infection can lead to a constellation of viral and immune symptoms called coronavirus disease 2019. Emerging literature increasingly supports the premise that severe acute respiratory syndrome coronavirus 2 promotes a prothrombotic milieu. However, to date there have been no reports of acute aortic occlusion, itself a rare phenomenon. We report a case of fatal acute aortic occlusion in a patient with coronavirus disease 2019.

Case report: A 59-year-old Caucasian male with past medical history of peripheral vascular disease presented to the emergency department for evaluation of shortness of breath, fevers, and dry cough. …

Lawmakers' Use Of Scientific Evidence Can Be Improved, D Max Crowley, J Taylor Scott, Elizabeth C Long, Lawrie Green, Azaliah Israel, Lauren Supplee, Elizabeth Jordan, Kathryn Oliver, Shannon Guillot-Wright, Brittany Gay, Rachel Storace, Naomi Torres-Mackie, Yolanda Murphy, Sandra Donnay, Jenna Reardanz, Rebecca Smith, Kristina Mcguire, Elizabeth Baker, Ana Antonopoulos, Mary Mccauley, Cagla Giray

Faculty, Staff and Student Publications

Core to the goal of scientific exploration is the opportunity to guide future decision-making. Yet, elected officials often miss opportunities to use science in their policymaking. This work reports on an experiment with the US Congress-evaluating the effects of a randomized, dual-population (i.e., researchers and congressional offices) outreach model for supporting legislative use of research evidence regarding child and family policy issues. In this experiment, we found that congressional offices randomized to the intervention reported greater value of research for understanding issues than the control group following implementation. More research use was also observed in legislation introduced by the intervention …

Discovery And Characterization Of Bromodomain 2-Specific Inhibitors Of Brdt, Zhifeng Yu, Angela F Ku, Justin L Anglin, Rajesh Sharma, Melek Nihan Ucisik, John C Faver, Feng Li, Pranavanand Nyshadham, Nicholas Simmons, Kiran L Sharma, Sureshbabu Nagarajan, Kevin Riehle, Gundeep Kaur, Banumathi Sankaran, Marta Storl-Desmond, Stephen S Palmer, Damian W Young, Choel Kim, Martin M Matzuk

Faculty, Staff and Students Publications

Bromodomain testis (BRDT), a member of the bromodomain and extraterminal (BET) subfamily that includes the cancer targets BRD2, BRD3, and BRD4, is a validated contraceptive target. All BET subfamily members have two tandem bromodomains (BD1 and BD2). Knockout mice lacking BRDT-BD1 or both bromodomains are infertile. Treatment of mice with JQ1, a BET BD1/BD2 nonselective inhibitor with the highest affinity for BRD4, disrupts spermatogenesis and reduces sperm number and motility. To assess the contribution of each BRDT bromodomain, we screened our collection of DNA-encoded chemical libraries for BRDT-BD1 and BRDT-BD2 binders. High-enrichment hits were identified and resynthesized off-DNA and examined …

Glucagon Blockade Restores Functional Β-Cell Mass In Type 1 Diabetic Mice And Enhances Function Of Human Islets, May-Yun Wang, E Danielle Dean, Ezekiel Quittner-Strom, Yi Zhu, Kamrul H Chowdhury, Zhuzhen Zhang, Shangang Zhao, Na Li, Reshing Ye, Young Lee, Yiyi Zhang, Shiuhwei Chen, Xinxin Yu, Derek C Leonard, Greg Poffenberger, Alison Von Deylen, S Kay Mccorkle, Amnon Schlegel, Kyle W Sloop, Alexander M Efanov, Ruth E Gimeno, Philipp E Scherer, Alvin C Powers, Roger H Unger, William L Holland

Faculty, Staff and Students Publications

We evaluated the potential for a monoclonal antibody antagonist of the glucagon receptor (Ab-4) to maintain glucose homeostasis in type 1 diabetic rodents. We noted durable and sustained improvements in glycemia which persist long after treatment withdrawal. Ab-4 promoted β-cell survival and enhanced the recovery of insulin+ islet mass with concomitant increases in circulating insulin and C peptide. In PANIC-ATTAC mice, an inducible model of β-cell apoptosis which allows for robust assessment of β-cell regeneration following caspase-8–induced diabetes, Ab-4 drove a 6.7-fold increase in β-cell mass. Lineage tracing suggests that this restoration of functional insulin-producing cells was at least partially …

Estimation And Comparison Of Current And Future Racial/Ethnic Representation In The Us Health Care Workforce., Edward Salsberg, Chelsea Richwine, Sara Westergaard, Maria Portela Martinez, Toyese Oyeyemi, Anushree Vichare, Candice P. Chen

Fitzhugh Mullan Institute for Health Workforce Equity

No abstract provided.

Right Under Our Noses: Nursing Homes And Covid-19., Debbie Daunt

Nursing | Faculty Scholarship

A medical mission volunteer bears witness to nightmarish inequalities.

Grasping Performance Depends Upon The Richness Of Hand Feedback., Prajith Sivakumar, Derek J Quinlan, Kevin M Stubbs, Jody C Culham

Psychology Publications

Although visual feedback of the hand allows fast and accurate grasping actions, little is known about whether the nature of feedback of the hand affects performance. We investigated kinematics during precision grasping (with the index finger and thumb) when participants received different levels of hand feedback, with or without visual feedback of the target. Specifically, we compared performance when participants saw (1) no hand feedback; (2) only the two critical points on the index finger and thumb tips; (3) 21 points on all digit tips and hand joints; (4) 21 points connected by a "skeleton", or (5) full feedback of …

Limitations Of Conventional Magnetic Resonance Imaging As A Predictor Of Death Or Disability Following Neonatal Hypoxic-Ischemic Encephalopathy In The Late Hypothermia Trial, Abbot R. Laptook, Seetha Shankaran, Patrick Barnes, Nancy Rollins, Barbara T. Do, Nehal A. Parikh, Shannon Hamrick, Susan R. Hintz, Jon E. Tyson, Edward F. Bell, Namasivayam Ambalavanan, Ronald N. Goldberg, Athina Pappas, Carolyn Huitema, Claudia Pedroza, Aasma S. Chaudhary, Angelita M. Hensman, Abhik Das, Myra Wyckoff, Amir Khan, Michelle C. Walsh, Kristi L. Watterberg, Roger Faix, William Truog, Ronnie Guillet, Gregory M. Sokol, Brenda B. Poindexter, Rosemary D. Higgins, Eunice Kennedy Shriver National Institute Of Child Health And Human Development Neonatal Research Network

Pediatrics Research and Scholarship

OBJECTIVE: To investigate if magnetic resonance imaging (MRI) is an accurate predictor for death or moderate-severe disability at 18-22 months of age among infants with neonatal encephalopathy in a trial of cooling initiated at 6-24 hours.

STUDY DESIGN: Subgroup analysis of infants ≥36 weeks of gestation with moderate-severe neonatal encephalopathy randomized at 6-24 postnatal hours to hypothermia or usual care in a multicenter trial of late hypothermia. MRI scans were performed per each center's practice and interpreted by 2 central readers using the Eunice Kennedy Shriver National Institute of Child Health and Human Development injury score (6 levels, normal to …

Implementing Evidence-Informed Practices To Make Schools Safer And More Supportive Of Sexual And Gender Minority Youth, Daniel Shattuck, Janie L Hall, Elizabeth Dickson, Amy E Green, Mary M Ramos

Pediatrics Research and Scholarship

No abstract provided.

A Novel Cd4+ Ctl Subtype Characterized By Chemotaxis And Inflammation Is Involved In The Pathogenesis Of Graves' Orbitopathy., Yue Wang, Ziyi Chen, Tingjie Wang, Hui Guo, Yufeng Liu, Ningxin Dang, Shiqian Hu, Liping Wu, Chengsheng Zhang, Kai Ye, Bingyin Shi

Faculty Research 2021

Graves' orbitopathy (GO), the most severe manifestation of Graves' hyperthyroidism (GH), is an autoimmune-mediated inflammatory disorder, and treatments often exhibit a low efficacy. CD4+ T cells have been reported to play vital roles in GO progression. To explore the pathogenic CD4+ T cell types that drive GO progression, we applied single-cell RNA sequencing (scRNA-Seq), T cell receptor sequencing (TCR-Seq), flow cytometry, immunofluorescence and mixed lymphocyte reaction (MLR) assays to evaluate CD4+ T cells from GO and GH patients. scRNA-Seq revealed the novel GO-specific cell type CD4+ cytotoxic T lymphocytes (CTLs), which are characterized by chemotactic and inflammatory features. The clonal …

Fatigue And Its Association With Social Participation, Functioning, And Quality Of Life In Systemic Sclerosis, Susan L. Murphy, Anna L. Kratz, Daniel Whibley, Janet L. Poole, Dinesh Khanna

Pediatrics Research and Scholarship

OBJECTIVE: Fatigue is consistently ranked as one of the most problematic symptoms of systemic sclerosis (SSc), but the impact of fatigue on daily life is not well characterized. The purpose of this study was to examine the contribution of fatigue to deficits in social participation, functioning, and quality of life.

METHODS: Baseline data from a sample undertaking a clinical trial were utilized (n = 267). Fatigue, pain interference, depressive symptoms, physical function, and social participation were assessed by measures from the Patient-Reported Outcomes Measurement Information System. Hierarchical linear regressions were performed to determine the unique contribution of fatigue to social …

The National Covid Cohort Collaborative (N3c): Rationale, Design, Infrastructure, And Deployment., Melissa A Haendel, Christopher G Chute, Tellen D Bennett, David A Eichmann, Justin Guinney, Warren A Kibbe, Philip R O Payne, Emily R Pfaff, Peter N Robinson, Joel H Saltz, Heidi Spratt, Christine Suver, John Wilbanks, Adam B Wilcox, Andrew E Williams, Chunlei Wu, Clair Blacketer, Robert L Bradford, James J Cimino, Marshall Clark, Evan W Colmenares, Patricia A Francis, Davera Gabriel, Alexis Graves, Raju Hemadri, Stephanie S Hong, George Hripscak, Dazhi Jiao, Jeffrey G Klann, Kristin Kostka, Adam M Lee, Harold P Lehmann, Lora Lingrey, Robert T Miller, Michele Morris, Shawn N Murphy, Karthik Natarajan, Matvey B Palchuk, Usman Sheikh, Harold Solbrig, Shyam Visweswaran, Anita Walden, Kellie M Walters, Griffin M Weber, Xiaohan Tanner Zhang, Richard L Zhu, Benjamin Amor, Andrew T Girvin, Amin Manna, Nabeel Qureshi, Michael G Kurilla, Sam G Michael, Lili M Portilla, Joni L Rutter, Christopher P Austin, Ken R Gersing

Faculty Research 2021

OBJECTIVE: Coronavirus disease 2019 (COVID-19) poses societal challenges that require expeditious data and knowledge sharing. Though organizational clinical data are abundant, these are largely inaccessible to outside researchers. Statistical, machine learning, and causal analyses are most successful with large-scale data beyond what is available in any given organization. Here, we introduce the National COVID Cohort Collaborative (N3C), an open science community focused on analyzing patient-level data from many centers.

MATERIALS AND METHODS: The Clinical and Translational Science Award Program and scientific community created N3C to overcome technical, regulatory, policy, and governance barriers to sharing and harmonizing individual-level clinical data. We …

New Mexico's Covid-19 Experience, Nicole R. Jackson, Karen Zeigler, Mary Torrez, Yohsuke Makino, Natalie L. Adolphi, Sarah Lathrop, Lauren Decker, Lauren Dvorscak, Lori Proe, Ian D. Paul, Ross Zumwalt, Heather Jarrell

Pathology Research and Scholarship

The 2019 novel coronavirus disease (COVID-19) has spread worldwide, infiltrating, infecting, and devastating communities in all locations of varying demographics. An overwhelming majority of published literature on the pathologic findings associated with COVID-19 is either from living clinical cohorts or from autopsy findings of those who died in a medical care setting, which can confound pure disease pathology. A relatively low initial infection rate paired with a high biosafety level enabled the New Mexico Office of the Medical Investigator to conduct full autopsy examinations on suspected COVID-19-related deaths. Full autopsy examination on the first 20 severe acute respiratory syndrome coronavirus …

Surveillance Systems For Monitoring Cervical Cancer Elimination Efforts: Focus On Hpv Infection, Cervical Dysplasia, Cervical Screening And Treatment., Julia M L Brotherton, Cosette Wheeler, Gary M. Clifford, Miriam Elfström, Marion Saville, John Kaldor, Dorothy A. Machalek

Pathology Research and Scholarship

In order to achieve the global elimination of cervical cancer as a public health problem, close surveillance of progress in public health and clinical activities and outcomes across the three pillars of vaccination, screening and treatment will be required. Surveillance should ideally occur within an integrated system that is planned, funded, and regularly evaluated to ensure it is providing timely, accurate and relevant feedback for action. In this paper, we conceptualise the main public health surveillance objectives as process and outcome measures in each of the three pillars. Process measures include coverage/participation measures for vaccination, screening and treatment alongside the …

Clinical Utility Of Anti-Cytosolic 5'-Nucleotidase 1a Antibody In Idiopathic Inflammatory Myopathies, Chiseko Ikenaga, Andrew R Findlay, Namita A Goyal, Sarah Robinson, Jonathan Cauchi, Yessar Hussain, Leo H Wang, Joshua C Kershen, Brent A Beson, Michael Wallendorf, Robert C Bucelli, Tahseen Mozaffar, Alan Pestronk, Conrad C Weihl

Open Access Publications

OBJECTIVE: To define the clinicopathologic features and diagnostic utility associated with anti-cytosolic 5'-nucleotidase 1A (NT5C1A) antibody seropositivity in idiopathic inflammatory myopathies (IIMs).

METHODS: Anti-NT5C1A antibody status was clinically tested between 2014 and 2019 in the Washington University neuromuscular clinical laboratory. Using clinicopathologic information available for 593 patients, we classified them as inclusion body myositis (IBM), dermatomyositis, antisynthetase syndrome, immune-mediated necrotizing myopathy (IMNM), nonspecific myositis, or noninflammatory muscle diseases.

RESULTS: Of 593 patients, anti-NT5C1A antibody was found in 159/249 (64%) IBM, 11/53 (21%) dermatomyositis, 7/27 (26%) antisynthetase syndrome, 9/76 (12%) IMNM, 20/84 (24%) nonspecific myositis, and 6/104 (6%) noninflammatory muscle diseases …

Increased Functional Coupling Between Vta And Hippocampus During Rest In First-Episode Psychosis, David F Gregory, Jane M Rothrock, Maria Jalbrzikowski, William Foran, David F Montez, Beatriz Luna, Vishnu P Murty

Open Access Publications

Animal models suggest that interactions between the hippocampus and ventral tegmental area (VTA) underlie the onset and etiology of psychosis. While a large body of research has separately characterized alterations in hippocampal and VTA function in psychosis, alterations across the VTA and hippocampus have not been characterized in first-episode psychosis (FEP). As the phase of psychosis most proximal to conversion, studies specifically focused on FEP are valuable to psychosis research. Here, we characterize alterations in VTA-hippocampal interactions across male and female human participants experiencing their first episode of psychosis using resting state functional magnetic resonance imaging (rsfMRI). In comparison to …

Disparities In Sleep Health And Potential Intervention Models: A Focused Review., Martha E. Billings, Robyn T. Cohen, Carol M. Baldwin, Dayna A. Johnson, Brian N. Palen, Sairam Parthasarathy, Sanjay R. Patel, Maureen Russell, Ignacio E. Tapia, Ariel A. Williamson, Sunil Sharma

Project ECHO Bibliography

Disparities in sleep health are important but underrecognized contributors to health disparities. Understanding the factors contributing to sleep heath disparities and developing effective interventions are critical to improving all aspects of heath. Sleep heath disparities are impacted by socioeconomic status, racism, discrimination, neighborhood segregation, geography, social patterns, and access to health care as well as by cultural beliefs, necessitating a cultural appropriateness component in any intervention devised for reducing sleep health disparities. Pediatric sleep disparities require innovative and urgent intervention to establish a foundation of lifelong healthy sleep. Tapping the vast potential of technology in improving sleep health access may …

Pancreatic Cancer Is Marked By Complement-High Blood Monocytes And Tumor-Associated Macrophages, Samantha B. Kemp, Nina G. Steele, Eileen S. Carpenter, Katelyn L. Donahue, Grace G. Bushnell, Aaron H. Morris, Stephanie The, Sophia M. Orbach, Veerin R. Sirihorachai, Zeribe C. Nwosu, Carlos Espinoza, Fatima Lima, Kristee Brown, Alexander A. Girgis, Valerie Gunchick, Yaqing Zhang, Costas A. Lyssiotis, Timothy L. Frankel, Filip Bednar, Arvind Rao, Vaibhav Sahai, Lonnie D. Shea, Howard C. Crawford, Marina Pasca Di Magliano

Research Administration Articles

Pancreatic ductal adenocarcinoma (PDA) is accompanied by reprogramming of the local microenvironment, but changes at distal sites are poorly understood. We implanted biomaterial scaffolds, which act as an artificial premetastatic niche, into immunocompetent tumor-bearing and control mice, and identified a unique tumor-specific gene expression signature that includes high expression of C1qa, C1qb, Trem2, and Chil3 Single-cell RNA sequencing mapped these genes to two distinct macrophage populations in the scaffolds, one marked by elevated C1qa, C1qb, and Trem2, the other with high Chil3, Ly6c2 and Plac8 In mice, expression of these genes in the corresponding populations was elevated in tumor-associated macrophages …

Point-Of-Care Lung Ultrasound For Covid-19: Findings And Prognostic Implications From 105 Consecutive Patients, Kosuke Yasukawa, Taro Minami, David R Boulware, Ayako Shimada, Ernest A Fischer

Department of Pharmacology and Experimental Therapeutics Faculty Papers

Background: The prognostic value of point-of-care lung ultrasound has not been evaluated in a large cohort of patients with COVID-19 admitted to general medicine ward in the United States. The aim of this study was to describe lung ultrasound findings and their prognostic value in patients with COVID-19 admitted to internal medicine ward.

Method: This prospective observational study consecutively enrolled 105 hospitalized participants with COVID-19 at 2 tertiary care centers. Ultrasound was performed in 12 lung zones within 24 hours of admission. Findings were assessed relative to 4 outcomes: intensive care unit (ICU) need, need for intensive respiratory support, length …

Creating A Cancer Genomics Curriculum For Pediatric Hematology-Oncology Fellows: A National Needs Assessment, Alise K Murray, Rose B Mcgee, Roya M Mostafavi, Xiaoqing Wang, Zhaohua Lu, Jessica M Valdez, Michael A Terao, Kim E Nichols

Pediatrics Research and Scholarship

BACKGROUND: With the advent of next generation sequencing, tumor and germline genomic testing are increasingly being used in the management of pediatric cancer patients. Despite this increase in testing, many pediatric hematology-oncology (PHO) providers are not confident interpreting or utilizing tumor or germline genomic results to care for their patients.

METHODS: We developed and delivered a needs assessment survey to PHO program directors, attendings, and fellows in the United States to understand this deficiency, gather data on existing cancer genomics educational initiatives, and query preferences for creating a future curriculum.

RESULTS: The survey includes 31 (41%) of 74 invited PHO …

Perfluorooctanoic Acid (Pfoa) Or Perfluorooctane Sulfonate (Pfos) And Dna Methylation In Newborn Dried Blood Spots In The Upstate Kids Cohort, Sonia L Robinson, Xuehuo Zeng, Weihua Guan, Rajeshwari Sundaram, Pauline Mendola, Diane L Putnick, Robert A Waterland, Chathura J Gunasekara, Kurunthachalam Kannan, Chongjing Gao, Erin M Bell, Edwina H Yeung

Children’s Nutrition Research Center Staff Publications

Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are persistent organic pollutants which may alter prenatal development, potentially through epigenetic modifications. Prior studies examining PFOS/PFOA and DNA methylation have relatively few subjects (n < 200) and inconsistent results. We examined relations of PFOA/PFOS with DNA methylation among 597 neonates in the Upstate KIDS cohort study. PFOA/PFOS were quantified in newborn dried blood spots (DBS) using high-performance liquid chromatography/tandem mass spectrometry. DNA methylation was measured using the Infinium MethylationEPIC BeadChip with DNA extracted from DBS. Robust linear regression was used to examine the associations of PFOA/PFOS with DNA methylation at individual CpG sites. Covariates included sample plate, estimated cell type, epigenetically derived ancestry, infant sex and plurality, indicators of maternal socioeconomic status, and prior pregnancy loss. In supplemental analysis, we restricted the analysis to 2242 CpG sites previously identified as Correlated Regions of Systemic Interindividual Variation (CoRSIVs) which include metastable epialleles. At FDR90th percentile was related to DNA methylation at cg15557840, near SCRT2, SRXN1; PFOS>90th percentile was related to 2 CpG sites in a sex-specific manner (cg19039925 in GVIN1 in boys and cg05754408 in ZNF26 in girls). When analysis was restricted to CoRSIVs, log-scaled, continuous PFOS concentration was related to DNA methylation at cg03278866 within PTBP1. In conclusion, there was limited evidence of an association between high concentrations of PFOA/PFOS and DNA methylation in newborn DBS in the Upstate KIDS cohort. These …

The Association Between Overnight Fasting And Body Mass Index In Older Adults: The Interaction Between Duration And Timing, Qian Xiao, Cici Bauer, Tracy Layne, Mary Playdon

Faculty, Staff and Student Publications

BACKGROUND: Circadian rhythms play an important role in the regulation of eating and fasting, and mistimed dietary intakes may be detrimental to metabolic health. Extended overnight fasting has been proposed as a strategy to better align the eating-fasting cycle with the internal circadian clock, and both observational and experimental studies have linked longer overnight fasting with lower body weight. However, it remains unclear if the timing of overnight fasting modifies the relationship between fasting duration and weight outcomes.

METHODS: The current study included 495 men and 499 women age 50-74 years. Dietary intake over 12 months was assessed by 24-h …

In Vivo Transplantation Of Human Intestinal Organoids Enhances Select Tight Junction Gene Expression, Mariaelena A Boyle, David J Sequeira, Eoin P Mcneill, Zachary K Criss, Noah F Shroyer, Allison L Speer

Faculty, Staff and Student Publications

BACKGROUND: Short bowel syndrome is a potentially fatal condition with inadequate management options. Tissue-engineered small intestine (TESI) is a promising solution, but confirmation of TESI function will be crucial before human application. We sought to define intestinal epithelial barrier function in human intestinal organoid (HIO)-derived TESI.

MATERIALS AND METHODS: HIOs were generated in vitro from human embryonic stem cells. After 1 mo, HIOs were collected for analysis or transplanted into the kidney capsule of immunocompromised mice. Transplanted HIOs (tHIOs) were harvested for analysis at 4 or 8 wk. Reverse transcription quantitative polymerase chain reaction and immunofluorescent staining were performed for …

Does Hand Involvement In Systemic Sclerosis Limit Completion Of Patient-Reported Outcome Measures?, Tracy M Frech, John M Vanburen, Emily Startup, Shervin Assassi, Elana J Bernstein, Flavia V Castelino, Lorinda Chung, Chase Correia, Jessica K Gordon, Faye N Hant, Laura Hummers, Dinesh Khanna, Nora Sandorfi, Ami A Shah, Victoria K Shanmugam, Virginia Steen, Luke Evnin

Faculty, Staff and Student Publications

The objective of this analysis is to examine whether the severity of systemic sclerosis (SSc)-hand involvement influences patient-reported outcome measure (PROM) completion rate in a US cohort of early disease. Participants included SSc patients with less than 5 years disease duration consented and enrolled in the Collaborative, National, Quality, and Efficacy Registry (CONQUER) between June 2018 and December 2019. Participants' socio-demographics, hand clinical features (severe modified Rodnan skin score, presence of small joint contractures, acro-osteolysis, calcinosis, and digital ulcers), and completion rates of seven PROMs including a Resource Use Questionnaire were analyzed. Cohort characteristics and baseline PROM completion were evaluated. …

Will The Covid-19 Pandemic Finally Fuel Drug Repurposing Efforts?, Anna Chen, Shivangi Patel, Matthew Alcusky, Vittorio Maio

College of Population Health Faculty Papers

No abstract provided.

A Brazilian National Preparedness Survey Of Anesthesiologists During The Coronavirus Pandemic, Vinícius Caldeira Quintão, Claudia Marquez Simões, Gibran Elias Harcha Munoz, Paul Barach, Maria José Carvalho Carmona, Brazilian Network For Research On Complications In Anesthesia Branca

College of Population Health Faculty Papers

No abstract provided.

Hands-On Training About Overfitting, Janez Demšar, Blaž Zupan

Faculty, Staff and Students Publications

Overfitting is one of the critical problems in developing models by machine learning. With machine learning becoming an essential technology in computational biology, we must include training about overfitting in all courses that introduce this technology to students and practitioners. We here propose a hands-on training for overfitting that is suitable for introductory level courses and can be carried out on its own or embedded within any data science course. We use workflow-based design of machine learning pipelines, experimentation-based teaching, and hands-on approach that focuses on concepts rather than underlying mathematics. We here detail the data analysis workflows we use …

Deficiency Of Stat1 In Cd11c+ Cells Alters Adipose Tissue Inflammation And Improves Metabolic Dysfunctions In Mice Fed A High-Fat Diet, Antu Antony, Zeqin Lian, Xiaoyuan Dai Perrard, Jerry Perrard, Hua Liu, Aaron R Cox, Pradip Saha, Lothar Hennighausen, Sean M Hartig, Christie M Ballantyne, Huaizhu Wu

Faculty, Staff and Students Publications

CD11c+ macrophages/dendritic cells (MDCs) are increased and display the classically activated M1-like phenotype in obese adipose tissue (AT) and may contribute to AT inflammation and insulin resistance. Stat1 is a key transcription factor for MDC polarization into the M1-like phenotype. Here, we examined the role of Stat1 in obesity-induced AT MDC polarization and inflammation and insulin resistance using mice with specific knockout of Stat1 in MDCs (cKO). Stat1 was upregulated and phosphorylated, indicating activation, early and persistently in AT and AT MDCs of wild-type mice fed a high-fat diet (HFD). Compared with littermate controls, cKO mice fed an HFD (16 …