Medicine and Health Sciences Commons^™

A Cohort Study Assessing The Impact Of Anki As A Spaced Repetition Tool On Academic Performance In Medical School, Michael M. Gilbert, Timothy C. Frommeyer, Garrett V. Brittain, Nickolas A. Stewart, Todd M. Turner, Adrienne Stolfi, Dean Parmelee

Pediatrics Faculty Publications

Introduction

Anki is an application that capitalizes upon the techniques of spaced repetition and is increasingly utilized by medical students for examination preparation. This study examines the impact of Anki usage in a medical school curriculum on academic performance. Secondary objectives analyzed individual Anki utilization and a qualitative assessment of Anki use.

Methods

A cohort-control study was conducted at Boonshoft School of Medicine. One hundred thirty first-year medical students were enrolled in an Anki utilization training program from July 2021 to September 2021. Training included educational Anki courses and subsequent survey data collection over Anki usage. Data variables included all …

Effects Of Pubertal Growth Variation On Knee Mechanics During Walking In Female And Male Adolescents, Andrew W. Froehle, Brian A. Edwards, Matthew Peterson, Brian Meyerson, Dana Duren

Kinesiology and Health Faculty Publications

Introduction: Puberty substantially alters the body's mechanical properties, neuromuscular control, and sex differences therein, likely contributing to increased, sex-biased knee injury risk during adolescence. Female adolescents have higher risk for knee injuries than male adolescents of similar age engaging in similar physical activities, and much research has investigated sex differences in mechanical risk factors. However, few studies address the considerable variation in pubertal growth (timing, pace), knee mechanics, and injury susceptibility within sexes, or the impact of such growth variation on mechanical injury risk.

Objectives: The present study tested for effects of variation in pubertal growth on established mechanical …

Optimal Dosing Of Enoxaparin In Overweight And Obese Children, Abdallah Derbalah, Stephen Duffull, Catherine M. Sherwin, Kathleen Job, Hesham Al‐Sallami

Pediatrics Faculty Publications

Aim:Current enoxaparin dosing guidelines in children are based on total bodyweight. This is potentially inappropriate in obese children as it may overestimate thedrug clearance. Current evidence suggests that obese children may require lower ini-tial doses of enoxaparin, therefore the aim of this work was to characterise the phar-macokinetics of enoxaparin in obese children and to propose a more appropriatedosing regimen.Methods:Data from 196 unique encounters of 160 children who received enoxa-parin treatment doses were analysed. Enoxaparin concentration was quantified usingthe chromogenic anti factor Xa (anti-Xa) assay. Patients provided a total of 552 anti-Xa samples. Existing published pharmacokinetic (PK) models were fitted …

Hypothesis: Hypermobile Ehlers Danlos Syndrome Is A Determinant Of Fetal And Young Infant Bone Strength, Marvin E. Miller

Pediatrics Faculty Publications

Several studies have demonstrated that young infants who present with unexplained fractures have a higher frequency of joint hypermobility, either in themselves or their parents, compared to the general population. The joint hypermobility is often associated with the autosomal dominant hypermobile form of Ehlers Danlos Syndrome (h-EDS) in which the mother is far more likely the affected parent. Most of these infants have metabolic bone disease as their radiographs often show poor bone mineralization. Some have alleged these infants were abused, while others have stated infants who have h-EDS or a parent with h-EDS are at increased risk to fracture …

Oral Drug Dosing Following Bariatric Surgery: General Concepts And Specific Dosing Advice, Jurjen S. Kingma, Desirée M. T. Burgers, Valerie M. Monpellier, Marinus J. Wiezer, Heleen J. Blussé Van Oud‐Alblas, Janelle D. Vaughns, Catherine M. T. Sherwin, Catherijne A. J. Knibbe

Pediatrics Faculty Publications

Bariatric or weight-loss surgery is a popular option for weight reduction. Depending on the surgical procedure, gastric changes like decreased transit time and volume and increased pH, decreased absorption surface in the small intestine, decreased exposure to bile acids and enterohepatic circulation, and decreased gastrointestinal transit time may be expected. In the years after bariatric surgery, patients will also substantially lose weight. As a result of these changes, the absorption, distribution, metabolism and/or elimination of drugs may be altered. The purpose of this article is to report the general influence of bariatric surgery on oral drug absorption, and to provide …

Metabolic Bone Disease Of Infancy In The Offspring Of Mothers With Bariatric Surgery: A Series Of 5 Infants In Contested Cases Of Child Abuse, Marvin E. Miller, David Ayoub

Pediatrics Faculty Publications

Background and aims: Metabolic Bone Disease of Infancy is a multifactorial disorder of bone fragility in infants who typically present under 6 months of age with multiple unexplained fractures. Major risk factors for this disorder relate to the fetal time period and include decreased provision of the essential nutrients for bone formation during pregnancy (calcium, phosphate, vitamin D, and protein), prema- turity, and decreased fetal bone loading. Methods: This study presents 5 infants with multiple unexplained fractures born to women who had prior bariatric surgery in which child abuse was alleged, and the alleged perpetrator denied wrong doing. Results: The …

Toward An Ontology Of Collaborative Learning Healthcaresystems, Alexandra H. Vinson, Michael Seid, Breck Gamel, Shehzad Ahmed Saeed, Brandy Fureman, Susan C. Cronin, Katherine Bates, David Hartley

Pediatrics Faculty Publications

Objective:To establish a basis for a domain ontology - a formal, explicit specificationof a shared conceptualization - of collaborative learning healthcare systems (CLHSs)in order to facilitate measurement, explanation, and improvement.Methods:We adapted the“Methontology”approach to begin building an ontologyof CLHSs. We specified the purpose of an ontology, acquired domain knowledge vialiterature review, conceptualized a common framework of CLHSs using a groundedapproach, refined these concepts based on expert panel input, and illustrated con-cept application via four cases.Results:The set of concepts identified as important to include in an ontologyincludes goals, values, structure, actors, environment, and products. To establish thisset of concepts, we gathered input …

Technology-Enabled Health Care Collaboration In Pediatric Chronic Illness: Pre-Post Interventional Study For Feasibility, Acceptability, And Clinical Impact Of An Electronic Health Record–Linked Platform For Patient-Clinician Partnership, Shehzad Ahmed Saeed, Lisa Opipari-Arrigan, Dana M. H. Dykes, Sunny Thakkar, Lisa Burns, Barbara A. Chini, Gary L. Mcphail, Ian Eslick, Peter A. Margolis, Heather C. Kaplan

Pediatrics Faculty Publications

Background: Mobile health (mHealth) technology has the potential to support the Chronic Care Model's vision of closed feedback loops and patient-clinician partnerships. Objective: This study aims to evaluate the feasibility, acceptability, and short-term impact of an electronic health record-linked mHealth platform (Orchestra) supporting patient and clinician collaboration through real-time, bidirectional data sharing. Methods: We conducted a 6-month prospective, pre-post, proof-of-concept study of Orchestra among patients and parents in the Cincinnati Children's Hospital inflammatory bowel disease (IBD) and cystic fibrosis (CF) clinics. Participants and clinicians used Orchestra during and between visits to complete and view patient-reported outcome (PRO) measures …

Disparities In Health Care Utilization And The Effect Of Family Resilience And Neighborhood Support, Temitope Omoladun, Nora L. Vish

Medical Student Research Symposium Abstracts and Posters

Resilience, the ability to recover from adversity and turn obstacles into strengths and successes, can mitigate negative health outcomes associated with external drivers of health. Poverty, low educational attainment, insurance status and marginalized communities along with adverse childhood events are all known to be associated with poor health outcomes. Resilience is increasingly understood as a potent mitigating factor of negative health outcomes associated with toxic stress and social determinants of health. Individual resilience itself is impacted by external drivers such as family resilience and community cohesion.

Medical homes seek to promote patient well-being by establishing a partnership of trust and …

Dosing Recommendations For Vancomycin In Children And Adolescents With Varying Levels Of Obesity And Renal Dysfunction: A Population Pharmacokinetic Study In 1892 Children Aged 1–18 Years, Cornelis Smit, Sebastiaan C. Goulooze, Roger J. M. Brüggemann, Catherine M. Sherwin, Catherijne A. J. Knibbe

Pediatrics Faculty Publications

Vancomycin is an effective but potentially nephrotoxic antibiotic commonly used for severe infections. Dosing guidelines for vancomycin in obese children and adolescents with or without renal impairment are currently lacking. This study describes the pharmacokinetics of vancomycin in a large pediatric cohort with varying degrees of obesity and renal function to design practical dosing guidelines for this population. A multi-center retrospective population pharmacokinetic study was conducted using data from patients aged 1−18 years who received >1 dose of vancomycin and had ≥1 vancomycin concentration measured between January 2006 and December 2012. Besides pharmacokinetic data, age, gender, body weight, creatinine clearance …

Population Pharmacokinetics Of Olanzapine In Children, Anil R. Maharaj, Huali Wu, Kanecia O. Zimmerman, Julie Autmizguine, Rohit Kalra, Amira Al‐Uzri, Catherine M.T. Sherwin, Stuart L. Goldstein, Kevin Watt, Jinson Erinjeri, Elizabeth H. Payne, Michael Cohen‐Wolkowiez, Christoph P. Hornik

Pediatrics Faculty Publications

Aims The aim of this study was to evaluate the population pharmacokinetics (PopPK) of olanzapine in children and devise a model-informed paediatric dosing scheme. Methods The PopPK of olanzapine was characterized using opportunistically collected plasma samples from children receiving olanzapine per standard of care for any indication. A nonlinear mixed effect modelling approach was employed for model development using the software NONMEM (v7.4). Simulations from the developed PopPK model were used to devise a paediatric dosing scheme that targeted comparable plasma exposures to adolescents and adults. Results Forty-five participants contributed 83 plasma samples towards the analysis. The median (range) postnatal …

The Safe Environment For Every Kid Model: Analyzing Demographics Related To Higher Risks Of Child Maltreatment In High-Risk Pediatric Population, Hannah Redding

Scholarship in Medicine - All Papers

Background: The Safe Environment for Every Kid (SEEK) screener was developed by Dr. Howard Dubowitz for primary care clinicians to identify and address risk factors for child maltreatment. The instrument queries parents/guardians regarding their families' needs (e.g. food insecurity) and screens for depressive symptoms in the parent/guardian.

Objective: To examine the frequency of social determinants of health (e.g., food insecurity) and its correlates using the SEEK screener during pediatric visits at a Federally Qualified Health Center in south central Ohio.

Design/Methods: The SEEK screener was distributed to parents/guardians (PG) at Rocking Horse Community Health Center, a Federally Qualified Health Center …

Family Structure And Pediatric Outcomes In Ohio, Andrew J. Berman

Scholarship in Medicine - All Papers

Objective: The number of single-parent households has been trending upwards since the early 1900s. Studies in the past have evaluated the effects single-parent households have on pediatric outcomes nationwide. This study attempts to build upon these past studies by analyzing whether these findings remain when looked at the State level, for Ohio 2020, as well as see if the percent of children in single-parent households can predict child mortality.

Methods: Data was collected from publicly available data sets through County Health Rankings. This study utilizes SPSS for data analysis. ANOVA with post-hoc was performed to compare children in single-parent household …

Outcomes In Children And Adolescents Undergoing Cholecystectomies With A High Ejection Fraction, Salony Dighamber, Karen Herzing, Arturo Aranda, Jeffrey C. Pence, Sean Barnett

Scholarship in Medicine - All Papers

Background

Cholecystectomy is commonly performed electively for symptomatic cholelithiasis and biliary hypokinesia with an ejection fraction (EF) less than 35%. Recent literature has shown that cholecystectomy in adults for biliary hyperkinesia (EF>65%) can provide resolution of symptoms (primarily pain) for the majority of patients. We seek to determine whether cholecystectomy is efficacious in the treatment of symptomatic biliary hyperkinesia in the pediatric population.

Method

The charts of over 100 patients aged 7 to 21 in the last 10 years (2008 to 2018) who had cholecystectomies were reviewed to determine ejection fraction, BMI, race, pain with CCK-HIDA, complications, and resolution …

Spotlight Commentary: Why We Need To Pay Attention To Toxicity Associated With Herbal Medicines, Elena Y. Enioutina, Kathleen M. Job, Catherine M.T. Sherwin

Pediatrics Faculty Publications

No abstract provided.

Renal Survival In Children With Glomerulonephritis With Crescents: A Pediatric Nephrology Research Consortium Cohort Study, Joseph G. Maliakkal, M. John Hicks, Mini Michael, David T. Selewski, Katherine Twombley, Michelle N. Rheault, Meredith Seamon, Jason M. Misurac, Cheryl L. Tran, Loretta Reyes, Joseph T. Flynn, Ali M. Onder, Alexandru R. Constantinescu, Vaishali Singh, Cynthia Pan, Abiodun Aderogba Omoloja, Qiang Wu, William E. Smoyer, Guillermo Hidalgo, Scott E. Wenderfer

Pediatrics Faculty Publications

There is no evidence-based definition for diagnosing crescentic glomerulonephritis. The prognostic implications of crescentic lesions on kidney biopsy have not been quantified. Our objective was to determine risk factors for end-stage kidney disease (ESKD) in patients with glomerulonephritis and crescents on kidney biopsy. A query of the Pediatric Nephrology Research Consortium’s Pediatric Glomerulonephritis with Crescents registry identified 305 patients from 15 centers. A retrospective cohort study was performed with ESKD as the primary outcome. Median age at biopsy was 11 years (range 1–21). The percentage of crescents was 3–100% (median 20%). Etiologies included IgA nephropathy (23%), lupus (21%), IgA vasculitis …

Investigation Into The Reproducibility Of The Association Of Cord Blood Magnesium Concentration And Cerebral Palsy Or Death In Children, Christopher Luke Dixon, Xiaoxi Liu, Alfred Balch, Maged Costantine, Catherine M. Sherwin

Pediatrics Faculty Publications

Objective: To evaluate the association of cord blood magnesium concentrations at the time of birth with cerebral palsy (CP) and neonatal death. Study Design: A secondary analysis of a randomized controlled trial that randomized women at imminent risk of delivery between 24 and 31 weeks of gestation to receive magnesium sulfate or placebo. This ‘study’s primary outcome was a composite of either moderate to severe CP or death. Secondary outcomes included CP, moderate to severe CP, neonatal death, and neonatal head ultrasound findings. We used a logistic regression model to evaluate the relationship between the concentration of magnesium in cord …

The Reliability Of Histamine Pharmacodynamic Response Phenotype Classification In Children With Allergic Disease., Kumar Ss, Liu X, Sherwin Cm, Jones Bl

Pediatrics Faculty Publications

We have identified distinct histamine pharmacodynamic response phenotypes in children with allergic disease utilizing histamine iontophoresis with laser Doppler (HILD). These response phenotypes may be relevant in guiding therapeutic decision making for agents targeting the allergic response pathways. However, the reliability of these response phenotypes has not been assessed. Therefore, we performed HILD in children with allergic rhinitis and/or asthma on two to three separate occasions. HILD response-time data were analyzed in NONMEM using a linked effect PKPD model. Examination of observed vs. classified response phenotypes predicted response plots and the sum of residuals. The intraclass correlation coefficient (ICC) was …

Therapeutic Potential Of Citrulline As An Arginine Supplement: A Clinical Pharmacology Review, Jahidur Rashid, Shaun S. Kumar, Kathleen M. Job, Xiaoxi Liu, Candice D. Fike, Catherine M. T. Sherwin

Pediatrics Faculty Publications

Supplemental arginine has shown promise as a safe therapeutic option to improve endogenous nitric oxide (NO) regulation in cardiovascular diseases associated with endothelial dysfunction. L-arginine, an endogenous amino acid, was reported in clinical studies in adults to improve cardiovascular function in hypertension, pulmonary hypertension, pre-eclampsia, angina, and mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS) syndrome. L-citrulline, a natural precursor of L-arginine, is more bioavailable than L-arginine because of hepatic first-pass metabolism avoidance and longer circulation time. Although not yet well studied, arginine/citrulline has immense therapeutic potential in some life-threatening diseases of children. However, optimal clinical development of arginine or …

A Phase 1 Study Of Intravenous Busulfan As A Conditioning Regimen For Multiple Myeloma, Sabarinath V. Radhakrishnan, Michael Boyer, Catherine M. Sherwin, Maurizio Zangari, Guido Tricot

Pediatrics Faculty Publications

The efficacy of melphalan (MEL) 140 mg/m 2 pre-transplant conditioning versus MEL 200 mg/m 2 for the elderly is still debated. We hypothesized that single-agent intravenous busulfan (BU) would show significant anti-myeloma efficacy and be better tolerated by elderly patients. A prospective 3+3 dose escalation study enrolled symptomatic multiple myeloma (MM) patients 65 years or older with SWOG performance 0–2 for treatment with intravenous BU pre-transplant at different administration levels. The primary objective was to determine the maximum tolerated dose (MTD) of BU that could be safely given over the least number of days. All patients, except one, received maintenance …

Statistical Multiscale Mapping Of Idh1, Mgmt, And Microvascular Proliferation Inhuman Braintumors From Multiparametric Mr And Spatially-Registered Core Biopsy, Jason G. Parker, Emily E. Diller, Sha Cao, Jeremy T. Nelson, Kristen W. Yeom, Chang Ho, Robert M. Lober

Pediatrics Faculty Publications

We propose a statistical multiscale mapping approach to identify microscopic and molecular heterogeneity across a tumor microenvironment using multiparametric MR (mp-MR). Twenty-nine patients underwent pre-surgical mp-MR followed by MR-guided stereotactic core biopsy. The locations of the biopsy cores were identified in the pre-surgical images using stereotactic bitmaps acquired during surgery. Feature matrices mapped the multiparametric voxel values in the vicinity of the biopsy cores to the pathologic outcome variables for each patient and logistic regression tested the individual and collective predictive power of the MR contrasts. A non-parametric weighted k-nearest neighbor classifier evaluated the feature matrices in a leave-one-out cross …

Myeloid-Derived Suppressor Cells And Pancreatic Cancer: Implications In Novel Therapeutic Approaches, Anita Thyagarajan, Mamdouh Salman A. Alshehri, Kelly L.R. Miller, Catherine M. Sherwin, Jeffery B. Travers, Ravi P. Sahu

Pediatrics Faculty Publications

Pancreatic ductal adenocarcinoma (PDAC) remains a devastating human malignancy with poor prognosis and low survival rates. Several cellular mechanisms have been linked with pancreatic carcinogenesis and also implicated in inducing tumor resistance to known therapeutic regimens. Of various factors, immune evasion mechanisms play critical roles in tumor progression and impeding the efficacy of cancer therapies including PDAC. Among immunosuppressive cell types, myeloid-derived suppressor cells (MDSCs) have been extensively studied and demonstrated to not only support PDAC development but also hamper the anti-tumor immune responses elicited by therapeutic agents. Notably, recent efforts have been directed in devising novel approaches to target …

Antibiotic Treatment Of Suspected And Confirmed Neonatal Sepsis Within 28 Days Of Birth: A Retrospective Analysis, Jadon S. Wagstaff, Robert J. Durrant, Michael G. Newman, Rachael Eason, Robert M. Ward, Catherine M.T. Sherwin, Elena Y. Enioutina

Pediatrics Faculty Publications

Neonatal sepsis causes significant mortality and morbidity worldwide. Diagnosis is usually confirmed via blood culture results. Blood culture sepsis confirmation can take days and suffer from contamination and false negatives. Empiric therapy with antibiotics is common. This study aims to retrospectively describe and compare treatments of blood culture-confirmed and unconfirmed, but suspected, sepsis within the University of Utah Hospital system. Electronic health records were obtained from 1,248 neonates from January 1, 2006, to December 31, 2017. Sepsis was categorized into early-onset (≤3 days of birth, EOS) and late-onset (>3 and ≤28 days of birth, LOS) and categorized as culture-confirmed …

Implementing A Novel Quality Improvement-Based Approach To Data Quality Monitoring And Enhancement In A Multipurpose Clinical Registry, Jesse Pratt, Daniel Jeffers, Eileen C. King, Michael D. Kappelman, Jennifer Collins, Peter Margolis, Howard Baron, Julie A. Bass, Mikelle D. Bassett, Genie L. Beasley, Keith J. Benkov, Jeffrey A. Bornstein, Jose M. Cabrera, Wallace Crandall, Liz D. Dancel, Monica P. Garin-Laflam, John E. Grunow, Barry Z. Hirssch, Edward Hoffenberg, Esther Israel, Traci W. Jester, Fevronia Kiparissi, Arathi Lakhole, Sameer P. Lapsia, Phillip Minar, Fernando A. Navarro, Haley Neef, Kt Park, Dinesh S. Pashankar, Ashish S. Patel, Victor M. Pineiro, Chrles M. Samson, Kelly C. Sandberg, Steven J. Steiner, Jennifer A. Strople, Boris Sudel, Jillian S. Sullivan, David L. Suskind, Vikas Uppal, Prateek D. Wali

Pediatrics Faculty Publications

Objective: To implement a quality improvement based system to measure and improve data quality in an observational clinical registry to support a Learning Healthcare System.

Data Source: ImproveCareNow Network registry, which as of September 2019 contained data from 314,250 visits of 43,305 pediatric Inflammatory Bowel Disease (IBD) patients at 109 participating care centers.

Study Design: The impact of data quality improvement support to care centers was evaluated using statistical process control methodology. Data quality measures were defined, performance feedback of those measures using statistical process control charts was implemented, and reports that identified data items not following data quality checks …

Learning From Experience: Avoiding Common Pitfalls In Multicenter Quality Improvement Collaboratives, Jonathan D. Thackeray, Carrie A. Baker, Rachel P. Berger

Pediatrics Faculty Publications

Clinicians and researchers often tout the newest breakthrough or latest successful intervention. Sharing wins, however, is often done at the expense of sharing obstacles, failures, and subsequent adjustments, which are the cornerstone of quality improvement (QI).^1–3 Here, we share 3 key lessons from 2 hospital-based QI initiatives—the Ohio Timely Recognition of Abuse Injuries (TRAIN) Collaborative and the University of Pittsburgh Medical Center (UPMC) Child Abuse Initiative (UPMC-CAI). Both focus on early identification, proper evaluation, and accurate reporting of child maltreatment. These are important clinical issues because many children who die or nearly die from maltreatment had been …

Predicted Disease Compositions Of Human Gliomas Estimated From Multiparametric Mri Can Predict Endothelial Proliferation, Tumor Grade, And Overall Survival, Emily E. Diller, Sha Cao, Beth Ey, Robert M. Lober, Jason G. Parker

Pediatrics Faculty Publications

Background and Purpose: Biopsy is the main determinants of glioma clinical management, but require invasive sampling that fail to detect relevant features because of tumor heterogeneity. The purpose of this study was to evaluate the accuracy of a voxel-wise, multiparametric MRI radiomic method to predict features and develop a minimally invasive method to objectively assess neoplasms. Methods: Multiparametric MRI were registered to T1-weighted gadolinium contrast-enhanced data using a 12 degree-of-freedom affine model. The retrospectively collected MRI data included T1-weighted, T1-weighted gadolinium contrast-enhanced, T2-weighted, fluid attenuated inversion recovery, and multi-b-value diffusion-weighted acquired at 1.5T or 3.0T. Clinical experts provided voxel-wise annotations …

Decreasing Door-To-Door Times For Infliximab Infusions In A Children's Hospital Observation Unit, Kelly C. Sandberg, Janet N. Lucien, Denise Stoll, Erica Yanney, Adam Mezoff

Pediatrics Faculty Publications

Introduction:

Children with inflammatory bowel disease (IBD) often require infliximab infusions to manage their disease. Infusions administered in the hospital setting require the patient and their families to devote many hours away from home. Changing to a rapid infusion protocol has been shown in the literature to be safe and has the potential to decrease time spent in the hospital receiving infusions.

Methods:

We describe stepwise changes made over a 4-month period to improve infliximab infusion efficiency and lessen the time spent in the hospital by IBD patients and their families. These changes included the implementation of a standardized order …

Kiaa1549-Braf Expression Establishes A Permissive Tumor Microenvironment Through Nfκb-Mediated Ccl2 Production, Ran Chen, Chanel Keoni, Christopher A. Waker, Robert M. Lober, Robert M. Lober, Yihsien Chen, David H. Gutmann

Pediatrics Faculty Publications

KIAA1549-BRAF is the most frequently identified genetic mutation in sporadic pilocytic astrocytoma (PA), creating a fusion BRAF (f-BRAF) protein with increased BRAF activity. Fusion-BRAF-expressing neural stem cells (NSCs) exhibit increased cell growth and can generate glioma-like lesions following injection into the cerebella of naïve mice. Increased Iba1+ monocyte (microglia) infiltration is associated with murine f-BRAF-expressing NSC-induced glioma-like lesion formation, suggesting that f-BRAF-expressing NSCs attract microglia to establish a microenvironment supportive of tumorigenesis. Herein, we identify Ccl2 as the chemokine produced by f-BRAF-expressing NSCs, which is critical for creating a permissive stroma for gliomagenesis. In addition, f-BRAF regulation of Ccl2 production …

Maladjustment Of Programmable Ventricular Shunt Valves By Inadvertent Exposure To A Common Hospital Device, R. Fujimura, Robert M. Lober, K. Kamian, L. Kleiner

Pediatrics Faculty Publications

Background: Programmable ventricular shunt valves are commonly used to treat hydrocephalus. They can be adjusted to allow for varying amounts of cerebrospinal fluid (CSF) flow using an external magnetic programming device, and are susceptible to maladjustment from inadvertent exposure to magnetic fields.Case Description: We describe the case of a 3‑month‑old girl treated for hydrocephalus with a programmable StrataTM II valve found at the incorrect setting on multiple occasions during her hospitalization despite frequent reprogramming and surveillance. We found that the Vocera badge, a common hands‑free wireless communication system worn by our nursing staff, had a strong enough magnetic field to …

Preclinical Pharmacokinetic Evaluation To Facilitate Repurposing Of Tyrosine Kinase Inhibitors Nilotinib And Imatinib As Antiviral Agents, Hari Krishna Ananthula, Scott Parker, Erin Touchette, R. Mark Buller, Gopi Patel, Daniel Kalman, Johanna S. Salzer, Nadia Gallardo-Romero, Victoria Olson, Inger K. Damon, Tessa Moir-Savitz, Larry Sallans, Milton H. Werner, Catherine M.T. Sherwin, Pankaj B. Dasai

Pediatrics Faculty Publications

Background

Several tyrosine kinase inhibitors (TKIs) developed as anti-cancer drugs, also have anti-viral activity due to their ability to disrupt productive replication and dissemination in infected cells. Consequently, such drugs are attractive candidates for “repurposing” as anti-viral agents. However, clinical evaluation of therapeutics against infectious agents associated with high mortality, but low or infrequent incidence, is often unfeasible. The United States Food and Drug Administration formulated the “Animal Rule” to facilitate use of validated animal models for conducting anti-viral efficacy studies.

Methods

To enable such efficacy studies of two clinically approved TKIs, nilotinib, and imatinib, we first conducted comprehensive pharmacokinetic …