Digital Commons Network^™

Haptoglobin Improves Shock, Lung Injury, And Survival In Canine Pneumonia, Kenneth E. Remy, Irene Cortés-Puch, Steven B. Solomon, Junfeng Sun, Benjamin M. Pockros, Jing Feng, Juan J. Lertora, Roy R. Hantgan, Xiaohua Liu, Andreas Perlegas, H. Shaw Warren, Mark T. Gladwin, Daniel B. Kim-Shapiro, Harvey G. Klein, Charles Natanson

Open Access Publications

During the last half-century, numerous antiinflammatory agents were tested in dozens of clinical trials and have proven ineffective for treating septic shock. The observation in multiple studies that cell-free hemoglobin (CFH) levels are elevated during clinical sepsis and that the degree of increase correlates with higher mortality suggests an alternative approach. Human haptoglobin binds CFH with high affinity and, therefore, can potentially reduce iron availability and oxidative activity. CFH levels are elevated over approximately 24-48 hours in our antibiotic-treated canine model of S. aureus pneumonia that simulates the cardiovascular abnormalities of human septic shock. In this 96-hour model, resuscitative treatments, …

Emerging Themes In Food Security: Environmental Justice, Extended Families And The Multiple Roles Of Grandmothers., Ethel Alderete, Lauren Sonderegger, Eliseo J Pérez-Stable

Articles, Abstracts, and Reports

BACKGROUND: Pre- and perinatal nutritional status defines the development of adult metabolism and energy balance in humans. Young children in poor households are disproportionately more vulnerable to food insecurity given the cumulative impact of chronic stress on susceptibility to chronic diseases as an adult. Qualitative studies focusing on the experience of food insecurity in Latin America are scarce. In Argentina, although socioeconomic indicators improved in the aftermath of the 2001ecomomic crisis, the disadvantaged provinces in the north continue to bear the burden of historical inequities. The study was conducted among Primary Health Care patients in the city of San Salvador …

When To Incorporate Point-Of-Care Ultrasound (Pocus) Into The Initial Assessment Of Acutely Ill Patients: A Pilot Crossover Study To Compare 2 Pocus-Assisted Simulation Protocols., Courtney E. Bennett, Sandhya Samavedam, Namita Jayaprakash, Alexander Kogan, Ognjen Gajic, Hiroshi Sekiguchi

Emergency Medicine Articles

BACKGROUND: The purpose of this study was to determine the ideal timing for providers to perform point-of-care ultrasound (POCUS) with the least increase in workload.

METHODS: We conducted a pilot crossover study to compare 2 POCUS-assisted evaluation protocols for acutely ill patients: sequential (physical examination followed by POCUS) vs parallel (POCUS at the time of physical examination). Participants were randomly assigned to 2 groups according to which POCUS-assisted protocol (sequential vs parallel) was used during simulated scenarios. Subsequently, the groups were crossed over to complete assessment by using the other POCUS-assisted protocol in the same patient scenarios. Providers' workloads, measured …

Cpx-351 (Cytarabine And Daunorubicin) Liposome For Injection Versus Conventional Cytarabine Plus Daunorubicin In Older Patients With Newly Diagnosed Secondary Acute Myeloid Leukemia, Jeffrey E Lancet, Geoffrey L Uy, Et Al

Open Access Publications

Purpose CPX-351 is a dual-drug liposomal encapsulation of cytarabine and daunorubicin that delivers a synergistic 5:1 drug ratio into leukemia cells to a greater extent than normal bone marrow cells. Prior clinical studies demonstrated a sustained drug ratio and exposure in vivo and prolonged survival versus standard-of-care cytarabine plus daunorubicin chemotherapy (7+3 regimen) in older patients with newly diagnosed secondary acute myeloid leukemia (sAML). Patients and Methods In this open-label, randomized, phase III trial, 309 patients age 60 to 75 years with newly diagnosed high-risk/sAML received one to two induction cycles of CPX-351 or 7+3 followed by consolidation therapy with …

Shared Decision-Making Tools In Pediatric Acute Care: Enhancing Parent Knowledge And Trust., M Denise Dowd

Manuscripts, Articles, Book Chapters and Other Papers

Comment on

• Effect of the Head Computed Tomography Choice Decision Aid in Parents of Children With Minor Head Trauma: A Cluster Randomized Trial. Hess EP, Homme JL, Kharbanda AB, Tzimenatos L, Louie JP, Cohen DM, Nigrovic LE, Westphal JJ, Shah ND, Inselman J, Ferrara MJ, Herrin J, Montori VM, Kuppermann N.JAMA Netw Open. 2018 Sep 7;1(5):e182430. doi: 10.1001/jamanetworkopen.2018.2430.PMID: 30646167 Free PMC article. Clinical Trial.

Impaired Monocyte Cholesterol Clearance Initiates Age-Related Retinal Degeneration And Vision Loss, Norimitsu Ban, Tae Jun Lee, Abdoulaye Sene, Mayur Choudhary, Michael Lekwuwa, Zhenyu Dong, Andrea Santeford, Jonathan B. Lin, Goldis Malek, Daniel S. Ory, Rajendra S. Apte

Open Access Publications

Advanced age-related macular degeneration (AMD), the leading cause of blindness among people over 50 years of age, is characterized by atrophic neurodegeneration or pathologic angiogenesis. Early AMD is characterized by extracellular cholesterol-rich deposits underneath the retinal pigment epithelium (RPE) called drusen or in the subretinal space called subretinal drusenoid deposits (SDD) that drive disease progression. However, mechanisms of drusen and SDD biogenesis remain poorly understood. Although human AMD is characterized by abnormalities in cholesterol homeostasis and shares phenotypic features with atherosclerosis, it is unclear whether systemic immunity or local tissue metabolism regulates this homeostasis. Here, we demonstrate that targeted deletion …

Eight Years After An International Workshop On Myotonic Dystrophy Patient Registries: Case Study Of A Global Collaboration For A Rare Disease., Libby Wood, Guillaume Bassez, Corinne Bleyenheuft, Craig Campbell, Louise Cossette, Aura Cecilia Jimenez-Moreno, Yi Dai, Hugh Dawkins, Jorge Alberto Diaz Manera, Celine Dogan, Rasha El Sherif, Barbara Fossati, Caroline Graham, James Hilbert, Kristinia Kastreva, En Kimura, Lawrence Korngut, Anna Kostera-Pruszczyk, Christopher Lindberg, Bjorn Lindvall, Elizabeth Luebbe, Anna Lusakowska, Radim Mazanec, Giovani Meola, Liannna Orlando, Masanori P Takahashi, Stojan Peric, Jack Puymirat, Vidosava Rakocevic-Stojanovic, Miriam Rodrigues, Richard Roxburgh, Benedikt Schoser, Sonia Segovia, Andriy Shatillo, Simone Thiele, Ivailo Tournev, Baziel Van Engelen, Stanislav Vohanka, Hanns Lochmüller

Paediatrics Publications

Background

Myotonic Dystrophy is the most common form of muscular dystrophy in adults, affecting an estimated 10 per 100,000 people. It is a multisystemic disorder affecting multiple generations with increasing severity. There are currently no licenced therapies to reverse, slow down or cure its symptoms. In 2009 TREAT-NMD (a global alliance with the mission of improving trial readiness for neuromuscular diseases) and the Marigold Foundation held a workshop of key opinion leaders to agree a minimal dataset for patient registries in myotonic dystrophy. Eight years after this workshop, we surveyed 22 registries collecting information on myotonic dystrophy patients to assess …

A Framework For Secondary Cognitive And Motor Tasks In Dual-Task Gait Testing In People With Mild Cognitive Impairment., Susan W Hunter, Alison Divine, Courtney Frengopoulos, Manuel Montero Odasso

Physical Therapy Publications

BACKGROUND: Cognition is a key factor in the regulation of normal walking and dual-task gait assessment is an accepted method to evaluate the relationship. The objective of this study was to create a framework for task complexity of concurrent motor and cognitive tasks with gait in people with mild cognitive impairment (MCI).

METHODS: Community-dwelling people with MCI (n = 41, mean age = 76.20 ± 7.65 years) and cognitively normal controls (n = 41, mean age = 72.10 ± 3.80 years) participated in this study. Gait velocity was collected using an instrumented walkway under one single task and six combined …

Surface Immobilization Of Redox-Labile Fluorescent Probes: Enabling Single-Cell Co-Profiling Of Aerobic Glycolysis And Oncogenic Protein Signaling Activities., Zhonghan Li, Hanjun Cheng, Shiqun Shao, Xiang Lu, Li Mo, Jonathan Tsang, Pu Zeng, Zhili Guo, Siwen Wang, David A Nathanson, James R Heath, Wei Wei, Min Xue

Articles, Abstracts, and Reports

An analytical method is described for profiling lactate production in single cells via the use of coupled enzyme reactions on surface-grafted resazurin molecules. The immobilization of the redox-labile probes was achieved through chemical modifications on resazurin, followed by bio-orthogonal click reactions. The lactate detection was demonstrated to be sensitive and specific. The method was incorporated into a single-cell barcode chip for simultaneous quantification of aerobic glycolysis activities and oncogenic signaling phosphoproteins in cancer. The interplay between glycolysis and oncogenic signaling activities was interrogated on a glioblastoma cell line. Results revealed a drug-induced oncogenic signaling reliance accompanying shifted metabolic paradigms. A …

A Systematic Review Of The Efficacy And Safety Of Fecal Microbiota Transplant For Clostridium Difficile Infection In Immunocompromised Patients, Oluwaseun Shogbesan, Dilli Ram Poudel, Samjeris Victor, Asad Jehangir, Opeyemi Fadahunsi, Gbenga Shogbesan, Anthony A. Donato

Reading Hospital Internal Medicine Residency

Background: Fecal microbiota transplantation (FMT) has been shown to be effective in recurrent

Methods: We searched MEDLINE and EMBASE for English language articles published on FMT for treatment of CD infection in immunocompromised patients (including patients on immunosuppressant medications, patients with human immunodeficiency virus (HIV), inherited or primary immunodeficiency syndromes, cancer undergoing chemotherapy, or organ transplant, including-bone marrow transplant) of all ages. We excluded inflammatory bowel disease patients that were not on immunosuppressant medications. Resolution and adverse event rates (including secondary infection, rehospitalization, and death) were calculated.

Results: Forty-four studies were included, none of which were randomized designs. A total …

Development And Implementation Of A Mobile Device-Based Pediatric Electronic Decision Support Tool As Part Of A National Practice Standardization Project, Russell J Mcculloh, Sarah D Fouquet, Joshua Herigon, Eric A Biondi, Brandan Kennedy, Ellen Kerns, Adrienne Deporre, Jessica L Markham, Y Raymond Chan, Krista Nelson, Jason G Newland

2010-2019 OA Pubs

OBJECTIVE: Implementing evidence-based practices requires a multi-faceted approach. Electronic clinical decision support (ECDS) tools may encourage evidence-based practice adoption. However, data regarding the role of mobile ECDS tools in pediatrics is scant. Our objective is to describe the development, distribution, and usage patterns of a smartphone-based ECDS tool within a national practice standardization project.

MATERIALS AND METHODS: We developed a smartphone-based ECDS tool for use in the American Academy of Pediatrics, Value in Inpatient Pediatrics Network project entitled "Reducing Excessive Variation in the Infant Sepsis Evaluation (REVISE)." The mobile application (app), PedsGuide, was developed using evidence-based recommendations created by an …

Role Of Caregiver-Reported Outcomes In Identification Of Children With Prenatal Alcohol Exposure During The First Year Of Life, Ludmila N Bakhireva, Jean Lowe, Laura M Garrison, Sandra Cano, Yuridia Leyva, Fares Qeadan, Julia M Stephen

Pediatrics Research and Scholarship

BACKGROUND: Earlier identification of children with prenatal alcohol exposure (PAE) remains a challenge. The objective of this study was to identify neurobehavioral (NB) outcomes associated with PAE in infants.

METHODS: This manuscript evaluates NB outcomes at 6.33±1.12 months of age in 93 infants (39 PAE and 54 No-PAE) recruited prospectively into the ENRICH cohort. PAE was assessed by prospective repeated TLFB interviews and a panel of ethanol biomarkers. NB outcomes were evaluated by the Bayley Scales of Infant Development (BSID-III), Parenting Stress Index (PSI), Infant Behavior Questionnaire (IBQ-R), and Infant Sensory Profile (ISP).

RESULTS: Mean maternal age at enrollment was …

Twenty-Four Month Results From A Randomized Trial Of Cyanoacrylate Closure Versus Radiofrequency Ablation For The Treatment Of Incompetent Great Saphenous Veins., Kathleen Gibson, Nick Morrison, Raghu Kolluri, Michael Vasquez, Robert Weiss, Daniel Cher, Monte Madsen, Andrew Jones

Surgery Articles

OBJECTIVE: We previously reported 3-month and 12-month occlusion rates after treatment of clinically symptomatic saphenous vein reflux with either cyanoacrylate closure (CAC) using the VenaSeal Closure System (Medtronic, Dublin, Ireland) or radiofrequency ablation (RFA) in a randomized, multicenter, clinical trial, VenaSeal Sapheon Closure System vs Radiofrequency Ablation for Incompetent Great Saphenous Veins (VeClose). Herein we report the 24-month follow-up results of the VeClose trial.

METHODS: There were 222 patients with symptomatic great saphenous vein (GSV) incompetence who were randomly assigned to receive either CAC (n = 108) or RFA (n = 114). Patients were not allowed to receive adjunctive treatment …

Curriculum For Neurogastroenterology And Motility Training: A Report From The Joint Anms-Esnm Task Force., C P Gyawali, E Savarino, A Lazarescu, S Bor, A Patel, R Dickman, A Pressman, A M Drewes, John Rosen, V Drug, M Saps, L Novais, M Vazquez-Roque, D Pohl, M A L Van Tilburg, A Smout, S Yoon, J Pandolfino, G Farrugia, G Barbara, S Roman

Manuscripts, Articles, Book Chapters and Other Papers

Although neurogastroenterology and motility (NGM) disorders are some of the most frequent disorders encountered by practicing gastroenterologists, a structured competency-based training curriculum developed by NGM experts is lacking. The American Neurogastroenterology and Motility Society (ANMS) and the European Society of Neurogastroenterology and Motility (ESNM) jointly evaluated the components of NGM training in North America and Europe. Eleven training domains were identified within NGM, consisting of functional gastrointestinal disorders, visceral hypersensitivity and pain pathways, motor disorders within anatomic areas (esophagus, stomach, small bowel and colon, anorectum), mucosal disorders (gastro-esophageal reflux disease, other mucosal disorders), consequences of systemic disease, consequences of therapy …

A Narrative Review On Contrast-Enhanced Ultrasound In Aortic Endograft Endoleak Surveillance., Sriharsha Gummadi, John R. Eisenbrey, Andrej Lyshchik

Department of Radiology Faculty Papers

Endovascular repair of abdominal aortic aneurysms have been performed successfully since 1991. However, 20% to 50% of these patients may develop an endoleak or continued aneurysmal sac expansion or perfusion despite stent graft coverage. Current recommendations suggest lifelong surveillance with computed tomographic angiography (CTA) at least 1 month after intervention and yearly after that. In select patients with a stable aneurysm sac on computed tomography performed 1 year after treatment, future screening could be performed with ultrasonography. However, color Doppler ultrasound can fail to detect as many as 31% of endoleaks. Contrast-enhanced ultrasound (CEUS) provides an alternative approach to excluded …

Bivalirudin Anticoagulation Dosing Protocol For Extracorporeal Membrane Oxygenation: A Retrospective Review., Jared W. Netley Pharmd, Mpa , Bcps, James Roy Pharmd, Joseph Greenlee Iii Md, Shaun Hart Np, Michael Todt Pharmd, Bryan Statz Pharmd

Parkview Pharmacy Department

Anticoagulation with unfractionated heparin during extracorporeal membrane oxygenation (ECMO) is common, but alternative agents are being evaluated for safety and efficacy. The objective of this analysis was to assess if a comprehensive bivalirudin dosing and monitoring protocol effectively guides dose adjustments and monitoring of bivalirudin in patients during ECMO. Our analysis included 11 patients who received bivalirudin during ECMO therapy and had dosing managed using our hospital derived protocol. Patients treated over a 1-year period were included in this retrospective analysis. Clinical characteristics and changes in activated partial thromboplastin time (aPTT) were evaluated from medical records to determine the efficacy …

Pretty Peachy., Li-Anne Lim, Basil K. Williams, Carol L. Shields

Wills Eye Hospital Papers

No abstract provided.

Country-Level Macroeconomic Indicators Predict Early Post-Allogeneic Hematopoietic Cell Transplantation Survival In Acute Lymphoblastic Leukemia: A Cibmtr Analysis., William A. Wood, Ruta Brazauskas, Zhen-Huan Hu, Hisham Abdel-Azim, Ibrahim A. Ahmed, Mahmoud Aljurf, Sherif Badawy, Amer Beitinjaneh, Biju George, David Buchbinder, Jan Cerny, Laurence Dedeken, Miguel Angel Diaz, Cesar O. Freytes, Siddhartha Ganguly, Usama Gergis, David Gomez Almaguer, Ashish Gupta, Gregory Hale, Shahrukh K. Hashmi, Yoshihiro Inamoto, Rammurti T. Kamble, Kehinde Adekola, Tamila Kindwall-Keller, Jennifer Knight, Lalit Kumar, Yachiyo Kuwatsuka, Jason Law, Hillard M. Lazarus, Charles Lemaistre, Richard F. Olsson, Michael A. Pulsipher, Bipin N. Savani, Kirk R. Schultz, Ayman A. Saad, Matthew Seftel, Sachiko Seo, Thomas C. Shea, Amir Steinberg, Keith Sullivan, David Szwajcer, Baldeep Wirk, Jean Yared, Agnes Yong, Jignesh Dalal, Theresa Hahn, Nandita Khera, Carmem Bonfim, Yoshiko Atsuta, Wael Saber

Manuscripts, Articles, Book Chapters and Other Papers

For patients with acute lymphoblastic leukemia (ALL), allogeneic hematopoietic cell transplantation (alloHCT) offers a potential cure. Life-threatening complications can arise from alloHCT that require the application of sophisticated health care delivery. The impact of country-level economic conditions on post-transplantation outcomes is not known. Our objective was to assess whether these variables were associated with outcomes for patients transplanted for ALL. Using data from the Center for Blood and Marrow Transplant Research, we included 11,261 patients who received a first alloHCT for ALL from 303 centers across 38 countries between the years of 2005 and 2013. Cox regression models were constructed …

Amputation Stump Perfusion Is Predictive Of Post-Operative Necrotic Eschar Formation, Gayan S De Silva, Khalid Saffaf, Luis A Sanchez, Mohamed A Zayed

Open Access Publications

BACKGROUND: A large proportion of patients develop poor amputation stump healing. We hypothesize that Laser-Assisted Fluorescent Angiography (LAFA) can predict inadequate tissue perfusion and healing.

METHODS: Over an 8-month period we reviewed all patients who underwent lower extremity amputation and LAFA. We evaluated intra-operative LAFA global and segmental stump perfusion, and post-operative modified Bates-Jensen (mBJS) wound healing scores.

RESULTS: In 15 patients, amputation stumps with lower global perfusion demonstrated higher mBJS (P = 0.01). Lower suture-line perfusion also correlated with more eschar formation (P < 0.001). Diabetic patients had higher mBJS (P = 0.009), lower stump perfusion (P = 0.02), and increased eschar volume (P < 0.001).

CONCLUSION: LAFA is a useful adjunct for intra-operative stump perfusion assessment and can predict areas of …

Curriculum For Neurogastroenterology And Motility Training: A Report From The Joint Anms-Esnm Task Force, C P Gyawali, Et Al

Open Access Publications

Although neurogastroenterology and motility (NGM) disorders are some of the most frequent disorders encountered by practicing gastroenterologists, a structured competency-based training curriculum developed by NGM experts is lacking. The American Neurogastroenterology and Motility Society (ANMS) and the European Society of Neurogastroenterology and Motility (ESNM) jointly evaluated the components of NGM training in North America and Europe. Eleven training domains were identified within NGM, consisting of functional gastrointestinal disorders, visceral hypersensitivity and pain pathways, motor disorders within anatomic areas (esophagus, stomach, small bowel and colon, anorectum), mucosal disorders (gastro-esophageal reflux disease, other mucosal disorders), consequences of systemic disease, consequences of therapy …

Letting Go: Conceptualizing Intervention De-Implementation In Public Health And Social Service Settings, Virginia R Mckay, Alexandra B Morshed, Ross C Brownson, Enola K Proctor, Beth Prusaczyk

Open Access Publications

The discontinuation of interventions that should be stopped, or de-implementation, has emerged as a novel line of inquiry within dissemination and implementation science. As this area grows in human services research, like public health and social work, theory is needed to help guide scientific endeavors. Given the infancy of de-implementation, this conceptual narrative provides a definition and criteria for determining if an intervention should be de-implemented. We identify three criteria for identifying interventions appropriate for de-implementation: (a) interventions that are not effective or harmful, (b) interventions that are not the most effective or efficient to provide, and (c) interventions that …

The Association Between Subclass-Specific Igg Fc N-Glycosylation Profiles And Hypertension In The Uygur, Kazak, Kirgiz, And Tajik Populations, J. N. Liu, Mamatyusupu Dolikun, Jerko Štambuk, Irena Trbojević-Akmačić, J. Zhang, Hao Wang, D. Q. Zheng, X. Y. Zhang, H. L. Peng, Z. Y. Zhao, D. Liu, Yang Sun, Q. Sun, Q. H. Li, J. X. Zhang, Ming Sun, W. J. Cao, Ana Momčilović, Genadij Razdorov, L. J. Wu, Alyce Russell, Y. X. Wang, Song Manshu, Gordan Lauc, Wei Wang

Research outputs 2014 to 2021

Hypertension results from the interaction of genetic and acquired factors. IgG occurs in the form of different subclasses, of which the effector functions show significant variation. The detailed differences between the glycosylation profiles of the individual IgG subclasses may be lost in a profiling method for total IgG N-glycosylation. In this study, subclass-specific IgG Fc glycosylation profile was investigated in the four northwestern Chinese minority populations, namely, Uygur (UIG), Kazak (KZK), Kirgiz (KGZ), and Tajik (TJK), composed of 274 hypertensive patients and 356 healthy controls. The results showed that ten directly measured IgG N-glycan traits (i.e., IgG1G0F, IgG2G0F, IgG2G1FN, IgG2G1FS, …

Large-Scale Social And Behavior Change Communication Interventions Have Sustained Impacts On Infant And Young Child Feeding Knowledge And Practices: Results Of A 2-Year Follow-Up Study In Bangladesh, Sunny S. Kim, Phuong Hong Nguyen, Lan Mai Tran, Tina Sanghvi, Zeba Mahmud, Mohammad Raisul Haque, Kaosar Afsana, Edward A. Frongillo Jr., Marie T. Ruel, Purnima Menon

Faculty Publications

Background: Sustained improvements in infant and young child feeding (IYCF) require continued implementation of effective interventions. From 2010-2014, Alive & Thrive (A&T) provided intensive interpersonal counseling (IPC), community mobilization (CM), and mass media (MM) in Bangladesh, demonstrating impact on IYCF practices. Since 2014, implementation has been continued and scaled up by national partners with support from other donors and with modifications such as added focus on maternal nutrition and reduced program intensity. Objective: We assessed changes in intervention exposure and IYCF knowledge and practices in the intensive (IPC + CM + MM) compared with nonintensive areas (standard nutrition counseling + …

Platelet-Rich Plasma In Achilles Tendon Healing 2 (Path-2) Trial: Statistical Analysis Plan For A Multicentre, Double-Blinded, Parallel-Group, Placebo-Controlled Randomised Clinical Trial., Mm Schlüssel, Dj Keene, S Wagland, J Alsousou, Et Al

School of Health Professions

BACKGROUND: There has been a recent steep growth in platelet-rich plasma (PRP) use for musculoskeletal conditions, but findings from high quality clinical trial data are lacking in the literature. Here, we describe the statistical analysis plan (SAP) for the Platelet-rich plasma in Achilles Tendon Healing 2 (PATH-2) trial. METHODS: PATH-2 is a pragmatic, parallel-group, multi-centre, double-blinded, randomised, placebo-controlled, superiority trial. The study aims to evaluate the clinical efficacy of PRP in acute Achilles tendon rupture in terms of muscle-tendon function. Patients are identified in the orthopaedic/trauma outpatient clinic. The primary outcome is muscle-tendon work capacity from the Heel Rise Endurance …

App21 Transgenic Rats Develop Age-Dependent Cognitive Impairment And Microglia Accumulation Within White Matter Tracts., Nina Weishaupt, Qingfan Liu, Sheojung Shin, Ramandeep Singh, Yuksel Agca, Cansu Agca, Vladimir Hachinski, Shawn Narain Whitehead

Paediatrics Publications

Background

Most of the animal models commonly used for preclinical research into Alzheimer's disease (AD) largely fail to address the pathophysiology, including the impact of known risk factors, of the widely diagnosed sporadic form of the disease. Here, we use a transgenic rat (APP21) that does not develop AD-like pathology spontaneously with age, but does develop pathology following vascular stress. To further the potential of this novel rat model as a much-needed pre-clinical animal model of sporadic AD, we characterize APP21 transgenic rats behaviorally and histologically up to 19 months of age.

Methods

The open field test was used as …

Voices For Food: Methodologies For Implementing A Multi-State Community-Based Intervention In Rural, High Poverty Communities., Suzanne Stluka, Lindsay Moore, Heather A Eicher-Miller, Lisa Franzen-Castle, Becky Henne, Donna Mehrle, Daniel Remley, Lacey Mccormack

Health and Nutritional Sciences Faculty Publications

BACKGROUND: Rural communities experience unique barriers to food access when compared to urban areas and food security is a public health issue in rural, high poverty communities. A multi-leveled socio-ecological intervention to develop food policy councils (FPCs), and improve food security in rural communities was created. Methods to carry out such an intervention were developed and are described.
METHODS: A longitudinal, matched treatment and comparison study was conducted in 24 rural, high poverty counties in South Dakota, Indiana, Missouri, Michigan, Nebraska and Ohio. Counties were assigned to a treatment (n = 12) or comparison (n = 12) group. Intervention activities …

N-Terminal Domain Of Human Uracil Dna Glycosylase (Hung2) Promotes Targeting To Uracil Sites Adjacent To Ssdna-Dsdna Junctions, Brian P Weiser, Gaddiel Rodriguez, Philip A Cole, James T Stivers

Rowan-Virtua School of Osteopathic Medicine Departmental Research

The N-terminal domain (NTD) of nuclear human uracil DNA glycosylase (hUNG2) assists in targeting hUNG2 to replication forks through specific interactions with replication protein A (RPA). Here, we explored hUNG2 activity in the presence and absence of RPA using substrates with ssDNA-dsDNA junctions that mimic structural features of the replication fork and transcriptional R-loops. We find that when RPA is tightly bound to the ssDNA overhang of junction DNA substrates, base excision by hUNG2 is strongly biased toward uracils located 21 bp or less from the ssDNA-dsDNA junction. In the absence of RPA, hUNG2 still showed an 8-fold excision bias …

Intestinal Carriage Of Third-Generation Cephalosporin-Resistant And Extended-Spectrum Β-Lactamase-Producing Enterobacteriaceae In Healthy Us Children., Shamim Islam, Rangaraj Selvarangan, Neena Kanwar, Rendie Mchenry, James D. Chappell, Natasha Halasa, Mary E. Wikswo, Daniel C. Payne, Parvin H. Azimi, L Clifford Mcdonald, Oscar G. Gomez-Duarte

Manuscripts, Articles, Book Chapters and Other Papers

Background: The epidemiology of antibiotic-resistant Enterobacteriaceae intestinal carriage in healthy US children has not been well characterized.

Methods: Children between 14 days and 14 years of age were enrolled during well-child visits in Oakland, California, Kansas City, Kansas, and Nashville, Tennessee, between December 2013 and March 2015. Data on recent antibiotic use by the child and travel and hospitalization history of all members of each child's household were obtained with a risk-factor survey. Stool specimens collected from the subjects were screened for extended-spectrum β-lactamase-producing (ESBL-P) bacteria using CHROMagar ESBL medium. Putative ESBL-P Escherichia coli and Klebsiella colonies underwent phenotypic confirmation …

Bezlotoxumab For Prevention Of Recurrent Clostridium Difficile Infection In Patients At Increased Risk For Recurrence, Dale N. Gerding, Ciaran P. Kelly, Galia Rahav, Christine Lee, Erik R. Dubberke, Princy N. Kumar, Bruce Yacyshyn, Dina Kao, Karen Eves, Misoo C. Ellison, Mary E. Hanson, Dalya Guris, Mary Beth Dorr

Open Access Publications

Background: Bezlotoxumab is a human monoclonal antibody against Clostridium difficile toxin B indicated to prevent C. difficile infection (CDI) recurrence (rCDI) in adults at high risk for rCDI. This post hoc analysis of pooled monocolonal antibodies for C.difficile therapy (MODIFY) I/II data assessed bezlotoxumab efficacy in participants with characteristics associated with increased risk for rCDI.

Methods: The analysis population was the modified intent-to-treat population who received bezlotoxumab or placebo (n = 1554) by risk factors for rCDI that were prespecified in the statistical analysis plan: age ≥65 years, history of CDI, compromised immunity, severe CDI, and ribotype 027/078/244. The proportion …

Study Protocol Of "Our Choice": A Randomized Controlled Trial Of The Integration Of Safer Conception Counseling To Transform Hiv Family Planning Services In Uganda., Kathy Goggin, Emily A. Hurley, Jolly Beyeza-Kashesya, Violet Gwokyalya, Sarah Finocchario-Kessler, Josephine Birungi, Deborah Mindry, Rhoda K Wanyenze, Glenn J Wagner

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: About 40% of HIV-positive women in sub-Saharan Africa become pregnant post-diagnosis. Despite about half of their pregnancies being planned, safer conception methods (SCM) are underutilized among serodiscordant couples, partially due to the fact that safer conception counseling (SCC) has not been integrated into routine HIV family planning (FP) services.

METHODS: Our Choice is a comprehensive FP intervention that promotes unbiased childbearing consultations to ensure clients receive SCC or contraception services to achieve their desired reproductive goals. The intervention is theoretically grounded and has demonstrated preliminarily feasibility and acceptance through pilot testing. This three-arm cluster randomized controlled trial compares two …