Digital Commons Network^™

Comparison Of The Ekblom-Bak Submaximal Test To A Maximal Test In A Cohort Of Healthy Younger And Older Adults In The United States, Stephanie A Schultz, Jennifer Byers, Tammie L S Benzinger, Dominic Reeds, Andrei G Vlassenko, W Todd Cade, Manu S Goyal

Open Access Publications

Cardiorespiratory fitness (CRF) is routinely investigated in diverse populations, including in older adults of varying physical activity levels. Commonly performed maximal exercise testing protocols might be contraindicated and/or inadequate for older individuals who have physical or cognitive impairment. Moreover, early termination of an attempted maximal exercise test could result in underestimation of CRF in this population. The goal of the current study was to compare CRF estimates using the Ekblom-Bak (EB) submaximal exercise test - previously validated in a cohort of Scandinavian adults - versus a subsequent maximal exercise test in a diverse, Midwestern United States cohort. Fifteen generally healthy …

New Imaging Tools To Measure Nephron Number In Vivo: Opportunities For Developmental Nephrology, K M Bennett, E J Baldelomar, D Morozov, R L Chevalier, J R Charlton

Open Access Publications

The mammalian kidney is a complex organ, requiring the concerted function of up to millions of nephrons. The number of nephrons is constant after nephrogenesis during development, and nephron loss over a life span can lead to susceptibility to acute or chronic kidney disease. New technologies are under development to count individual nephrons in the kidney in vivo. This review outlines these technologies and highlights their relevance to studies of human renal development and disease.

Landscape Of Somatic Single Nucleotide Variants And Indels In Colorectal Cancer And Impact On Survival, Syed H. Zaidi, Yin Cao, Et Al.

Open Access Publications

No abstract provided.

Top Ten Tips Palliative Care Clinicians Should Know About Amyotrophic Lateral Sclerosis, Elyse A. Everett, Elizabeth Pedowitz, Samuel Maiser, Joss Cohen, Jessica Besbris, Ambereen K. Mehta, Luqi Chi, Christopher A. Jones

Open Access Publications

No abstract provided.

Assessing The Relationship Between District And State Policies And School Nutrition Promotion-Related Practices In The United States, Gabriella M Mcloughlin, Lindsey Turner, Julien Leider, Elizabeth Piekarz-Porter, Jamie F Chriqui

Open Access Publications

School environments are an optimal setting to promote healthy student diets, yet it is unclear what role state and district policies play in shaping school contexts. This study examined how state and district policies are associated with school-reported practices for promoting student participation in school lunch programs. School nutrition manager data were obtained from the School Nutrition and Meal Cost Study's (SNMCS) sample of 1210 schools in 46 states and the District of Columbia (DC) during school year 2014-2015. Relevant state laws and district policies were compiled and coded. Multivariable logistic and Poisson regressions, controlling for school characteristics, examined the …

Exposure To Covid-19 Patients Increases Physician Trainee Stress And Burnout, Thomas G. Kannampallil, Charles W. Goss, Bradley A. Evanoff, Jaime R. Strickland, Rebecca P. Mcalister, Jennifer Duncan

Open Access Publications

The coronavirus disease 2019 (COVID-19) pandemic has put considerable physical and emotional strain on frontline healthcare workers. Among frontline healthcare workers, physician trainees represent a unique group-functioning simultaneously as both learners and caregivers and experiencing considerable challenges during the pandemic. However, we have a limited understanding regarding the emotional effects and vulnerability experienced by trainees during the pandemic. We investigated the effects of trainee exposure to patients being tested for COVID-19 on their depression, anxiety, stress, burnout and professional fulfillment. All physician trainees at an academic medical center (n = 1375) were invited to participate in an online survey. We …

A Phase Ii Study Of Glembatumumab Vedotin For Metastatic Uveal Melanoma, Merve Hasanov, Matthew J Rioth, Kari Kendra, Leonel Hernandez-Aya, Richard W Joseph, Stephen Williamson, Sunandana Chandra, Keisuke Shirai, Christopher D Turner, Karl Lewis, Elizabeth Crowley, Jeffrey Moscow, Brett Carter, Sapna Patel

Open Access Publications

Glembatumumab vedotin (CDX-011, GV) is a fully human Immunoglobulin G2 monoclonal antibody directed against glycoprotein NMB coupled via a peptide linker to monomethyl auristatin E (MMAE), a potent cytotoxic microtubule inhibitor. This phase II study evaluated the overall response rate and safety of GV, glycoprotein NMB (GPNMB) expression, and survival in patients with metastatic uveal melanoma. Eligible patients with metastatic uveal melanoma who had not previously been treated with chemotherapy received GV 1.9 mg/kg every three weeks. The primary endpoint was the objective response rate (ORR). Secondary endpoints included GPNMB expression, progression-free survival (PFS), overall survival (OS), and toxicity analysis. …

Cancer In Youth Living With Hiv (Ylwhiv): A Narrative Review Of The Access To Oncological Services Among Ylwhiv And The Role Of Economic Strengthening In Child Health, Ruth G N Katumba, Ozge Sensoy Bahar, Kimberly J Johnson, Fred M Ssewamala

Open Access Publications

Youth Living with HIV/AIDS (YLWHIV) have a higher risk of developing immunodeficiency related illnesses including certain cancers than their general population counterparts of the same age. This narrative review of current available literature describes factors associated with pediatric access to oncological services, and the role economic strengthening could play in improving health outcomes for this vulnerable population. Findings suggest that both HIV-infected and -uninfected children living in low and middle-income countries struggle with access and adherence to cancer treatment and care. Cost of treatment is a major barrier to access and adherence. Asset-building savings programs may increase financial security and …

Obesity Is A Risk Factor For Acute Promyelocytic Leukemia: Evidence From Population And Cross-Sectional Studies And Correlation With Flt3 Mutations And Polyunsaturated Fatty Acid Metabolism, Luca Mazzarella, Timothy J. Ley, Et Al.

Open Access Publications

No abstract provided.

Macrophage Secretion Of Mir-106b-5p Causes Renin-Dependent Hypertension, J. Oh, S. J. Matkovich, A. E. Riek, S. M. Bindom, J. S. Shao, R.D. Head, R. A. Barve, M. S. Sands, G. Carmeliet, P. Osei-Owusu, R.H. Knutsen, H. Zhang, K. J. Blumer, C. G. Nichols, R. P. Mecham, Á Baldán, B. A. Benitez, M. L. Sequeira-Lopez, R. A. Gomez, C. Bernal-Mizrachi

Open Access Publications

No abstract provided.

Lactate-Protechypoglycemia (Lph), Matthew L Goodwin, L Bruce Gladden, Maarten W N Nijsten

Open Access Publications

Here, we provide an overview of the concept of a lactate-protected hypoglycemia ("LPH"), originally proposed as lowering glucose while simultaneously increasing lactate concentration as a method by which tumors might be targeted. Central to this hypothesis is that lactate can act as a critical salvage fuel for the central nervous system, allowing for wide perturbations in whole body and central nervous system glucose concentrations. Further, many tumors exhibit "the Warburg" effect, consuming glucose and producing and exporting lactate despite adequate oxygenation. While some recent data have provided evidence for a "reverse-Warburg," where some tumors may preferentially consume lactate, many of …

Impact Of Functional Status On Outcomes Of Simultaneous Pancreas-Kidney Transplantation: Risks And Opportunities For Patient Benefit, Krista L. Lentine, Tarek Alhamad, Wisit Cheungpasitporn, Jane C. Tan, Su-Hsin Chang, Matthew Cooper, Darshana M. Dadhania, David A. Axelrod, Mark A. Schnitzler, Rosemary Ouseph, Franco H. Cabeza Rivera, Bertram L. Kasiske, Kenneth J. Woodside, Ronald F. Parsons

Open Access Publications

No abstract provided.

Six-Year Follow-Up Of A Trial Of Antenatal Vitamin D For Asthma Reduction, Augusto A. Litonjua, Vincent J. Carey, Nancy Laranjo, Benjamin J. Stubbs, Hooman Mirzakhani, George T. O'Connor, Megan Sandel, Avraham Beigelman, Leonard B. Bacharier, Robert S. Zeiger, Michael Schatz, Bruce W. Hollis, Scott T. Weiss

Open Access Publications

No abstract provided.

Self-Reported Sleep Disturbance In Crohn’S Disease Is Not Confrmed By Objective Sleep Measures, Heba N. Iskandar, Emily E. Linan, Ami Patel, Renee Moore, Yi Lasanajak, C. Prakash Gyawali, Gregory S. Sayuk, Matthew A. Ciorba

Open Access Publications

No abstract provided.

Patient-Derived Small Intestinal Myofibroblasts Direct Perfused, Physiologically Responsive Capillary Development In A Microfluidic Gut-On-A-Chip Model, Kristen M. Seiler, Adam Bajinting, David M. Alvarado, Mahama A. Traore, Michael M. Binkley, William H. Goo, Wyatt E. Lanik, Jocelyn Ou, Usama Ismail, Micah Iticovici, Cristi R. King, Kelli L. Vandussen, Elzbieta A. Swietlicki, Vered Gazit, Jun Guo, Cliff J. Luke, Thaddeus Stappenbeck, Matthew A. Ciorba, Steven C. George, J. Mark Meacham, Deborah C. Rubin, Misty Good, Brad W. Warner

Open Access Publications

No abstract provided.

Inhibition Of Grb14, A Negative Modulator Of Insulin Signaling, Improves Glucose Homeostasis Without Causing Cardiac Dysfunction, Xunshan Ding, Rugmani Iyer, Christopher Novotny, Daniel Metzger, Heather H. Zhou, Gordon I. Smith, Mihoko Yoshino, Jun Yoshino, Samuel Klein, Gayathri Swaminath, Saswata Talukdar, Yingjiang Zhou

Open Access Publications

No abstract provided.

Nutrition In Necrotizing Enterocolitis And Following Intestinal Resection, Jocelyn Ou, Cathleen M Courtney, Allie E Steinberger, Maria E Tecos, Brad W Warner

Open Access Publications

This review aims to discuss the role of nutrition and feeding practices in necrotizing enterocolitis (NEC), NEC prevention, and its complications, including surgical treatment. A thorough PubMed search was performed with a focus on meta-analyses and randomized controlled trials when available. There are several variables in nutrition and the feeding of preterm infants with the intention of preventing necrotizing enterocolitis (NEC). Starting feeds later rather than earlier, advancing feeds slowly and continuous feeds have not been shown to prevent NEC and breast milk remains the only effective prevention strategy. The lack of medical treatment options for NEC often leads to …

Deconstructing Tumor Heterogeneity: The Stromal Perspective, Renee E. Vickman, Douglas V. Faget, Sheila A. Stewart, Et Al

Open Access Publications

Significant advances have been made towards understanding the role of immune cell-tumor interplay in either suppressing or promoting tumor growth, progression, and recurrence, however, the roles of additional stromal elements, cell types and/or cell states remain ill-defined. The overarching goal of this NCI-sponsored workshop was to highlight and integrate the critical functions of non-immune stromal components in regulating tumor heterogeneity and its impact on tumor initiation, progression, and resistance to therapy. The workshop explored the opposing roles of tumor supportive

Identification Of New Helicobacter Pylori Subpopulations In Native Americans And Mestizos From Peru, Andrés Julián Gutiérrez-Escobar, Douglas E Berg, Et Al

Open Access Publications

Region-specific

Campylobacter Colonization, Environmental Enteric Dysfunction, Stunting, And Associated Risk Factors Among Young Children In Rural Ethiopia: A Cross-Sectional Study From The Campylobacter Genomics And Environmental Enteric Dysfunction (Caged) Project, Dehao Chen, Mark J Manary, Et Al

Open Access Publications

Livestock farming provides a possible mechanism by which smallholder farmers can meet their household need for animal source foods (ASF), which may reduce the risk of stunting. However, direct/indirect contacts with domestic animals may increase colonization by

Mental Distress And Human Rights Violations During Covid-19: A Rapid Review Of The Evidence Informing Rights, Mental Health Needs, And Public Policy Around Vulnerable Populations, Muhammad Rahman, Rabab Ahmed, Ross Brownson, Mary Mckay, Et Al

Open Access Publications

No abstract provided.

Dementia Research In The Caribbean Hispanic Islands: Present Findings And Future Trends, Daisy Acosta, Jorge J Llibre-Guerra, Ivonne Z Jiménez-Velázquez, Juan J Llibre-Rodríguez

Open Access Publications

During the last decade, the Caribbean Hispanic islands experienced accelerated demographic aging, representing the fastest aging region within Latin America. Age-related non-communicable diseases, including dementia, are now reported at high prevalence. The Caribbean islands share similar genetic ancestry, culture, migration patterns, and risk profiles, providing a unique setting to understand dementia in the Caribbean-Hispanics. This perspective article aimed to describe the impact of dementia in the Caribbean, at a local and regional level and reflect on research strategies to address dementia. We report on 10/66 project findings, described research projects and regional plans for the region. According to our results, …

Effects Of Diet Versus Gastric Bypass On Metabolic Function In Diabetes, Mihoko Yoshino, Brandon D. Kayser, Jun Yoshino, Richard I. Stein, Dominic Reeds, J. Christopher Eagon, Shaina R. Eckhouse, Jeramie D. Watrous, Mohit Jain, Rob Knight, Kenneth Schechtman, Bruce W. Patterson, Samuel Klein

Open Access Publications

No abstract provided.

The Complex Interactions Between Rotavirus And The Gut Microbiota, Andrew Hyoungjin Kim, Michael P Hogarty, Vanessa C Harris, Megan T Baldridge

Open Access Publications

Human rotavirus (HRV) is the leading worldwide cause of acute diarrhea-related death in children under the age of five. RV infects the small intestine, an important site of colonization by the microbiota, and studies over the past decade have begun to reveal a complex set of interactions between RV and the gut microbiota. RV infection can temporarily alter the composition of the gut microbiota and probiotic administration alleviates some symptoms of infection

A Recommended "Minimum Data Set" Framework For Sd-Oct Retinal Image Acquisition And Analysis From The Atlas Of Retinal Imaging In Alzheimer's Study (Arias), Jessica Alber, Gregory Van Stavern, Et Al

Open Access Publications

Introduction: We propose a minimum data set framework for the acquisition and analysis of retinal images for the development of retinal Alzheimer's disease (AD) biomarkers. Our goal is to describe methodology that will increase concordance across laboratories, so that the broader research community is able to cross-validate findings in parallel, accumulate large databases with normative data across the cognitive aging spectrum, and progress the application of this technology from the discovery stage to the validation stage in the search for sensitive and specific retinal biomarkers in AD.

Methods: The proposed minimum data set framework is based on the Atlas of …

Acute Liver Failure Of Unclear Cause? Acetaminophen-Protein Adducts Make The Diagnosis, Michael E Mullins, Laura P James

Open Access Publications

Acetaminophen poisoning remains a leading cause of acute liver failure. Some cases may be difficult to diagnose when clinical findings are equivocal, the patient's history is misleading or incomplete, or the acetaminophen concentration is low or undetectable at arrival to care. We describe a case of a medically complicated young child whose acute liver failure had two of these features. Measurement of acetaminophen-protein adducts confirmed acetaminophen as the primary cause of her liver failure.

Insights Into The Role Of The Jak/Stat Signaling Pathway In Graft-Versus-Host Disease, Ramzi Abboud, Jaebok Choi, Peter Ruminski, Mark A Schroeder, Sena Kim, Camille N Abboud, John F Dipersio

Open Access Publications

Allogeneic hematopoietic transplantation (allo-HCT) is a curative therapy for a variety of hematologic malignancies, primarily through immune-mediated clearance of malignant cells. This graft-

Association Of Aspirin Use With Mortality Risk Among Older Adult Participants In The Prostate, Lung, Colorectal, And Ovarian Cancer Screening Trial, Holli A. Loomans-Kropp, Paul Pinsky, Yin Cao, Andrew T. Chan, Asad Umar

Open Access Publications

Importance: Aspirin use has been associated with reduced risk of cancer mortality, particularly of the colorectum. However, aspirin efficacy may be influenced by biological characteristics, such as obesity and age. With the increasing prevalence of obesity and conflicting data regarding the effect of aspirin in older adults, understanding the potential association of aspirin use with cancer mortality according to body mass index (BMI) and age is imperative.

Objectives: To investigate the association of aspirin use with risk of all-cause, any cancer, gastrointestinal (GI) cancer, and colorectal cancer (CRC) mortality among older adults and to perform an exploratory analysis of the …

Linking The Effects Of Helminth Infection, Diet And The Gut Microbiota With Human Whole-Blood Signatures, Soo Ching Lee, Mei San Tang, Alice V. Easton, Joseph Cooper Devlin, Ling Ling Chua, Ilseung Cho, Foong Ming Moy, Tsung Fei Khang, Yvonne A. L. Lim, P'Ng Loke

Open Access Publications

Helminth infection and dietary intake can affect the intestinal microbiota, as well as the immune system. Here we analyzed the relationship between fecal microbiota and blood profiles of indigenous Malaysians, referred to locally as Orang Asli, in comparison to urban participants from the capital city of Malaysia, Kuala Lumpur. We found that helminth infections had a larger effect on gut microbial composition than did dietary intake or blood profiles. Trichuris trichiura infection intensity also had the strongest association with blood transcriptional profiles. By characterizing paired longitudinal samples collected before and after deworming treatment, we determined that changes in serum zinc …

Neoadjuvant Cryotherapy Improves Dysphagia And May Impact Remission Rates In Advanced Esophageal Cancer, Tilak Shah, Vladimir Kushnir, Pritesh Mutha, Mankanchan Majhail, Bhaumik Patel, Matthew Schutzer, Drew Mogahanaki, George Smallfield, Milan Patel, Alvin Zfass

Open Access Publications

No abstract provided.