Digital Commons Network^™

Conserved Brain Myelination Networks Are Altered In Alzheimer's And Other Neurodegenerative Diseases., Mariet Allen, Xue Wang, Jeremy D Burgess, Jens Watzlawik, Daniel J Serie, Curtis S Younkin, Thuy Nguyen, Kimberly G Malphrus, Sarah Lincoln, Minerva M Carrasquillo, Charlotte Ho, Paramita Chakrabarty, Samantha Strickland, Melissa E Murray, Vivek Swarup, Daniel H Geschwind, Nicholas T Seyfried, Eric B Dammer, James J Lah, Allan I Levey, Todd E Golde, Cory Funk, Hongdong Li, Nathan D Price, Ronald C Petersen, Neill R Graff-Radford, Steven G Younkin, Dennis W Dickson, Julia R Crook, Yan W Asmann, Nilüfer Ertekin-Taner

Articles, Abstracts, and Reports

INTRODUCTION: Comparative transcriptome analyses in Alzheimer's disease (AD) and other neurodegenerative proteinopathies can uncover both shared and distinct disease pathways.

METHODS: We analyzed 940 brain transcriptomes including patients with AD, progressive supranuclear palsy (PSP; a primary tauopathy), and control subjects.

RESULTS: We identified transcriptional coexpression networks implicated in myelination, which were lower in PSP temporal cortex (TCX) compared with AD. Some of these associations were retained even after adjustments for brain cell population changes. These TCX myelination network structures were preserved in cerebellum but they were not differentially expressed in cerebellum between AD and PSP. Myelination networks were downregulated in …

Effects Of Adjunctive Eslicarbazepine Acetate On Serum Lipids In Patients With Partial-Onset Seizures: Impact Of Concomitant Statins And Enzyme-Inducing Antiepileptic Drugs., Scott Mintzer, Robert T. Wechsler, Joanne B. Rogin, Barry E. Gidal, Matthias Schwab, Elinor Ben-Menachem, Mar Carreño, Patrício Soares Da Silva, Joana Moreira, Yan Li, David Blum, Todd Grinnell

Department of Neurology Faculty Papers

PURPOSE: To evaluate the effects of eslicarbazepine acetate (ESL) on lipid metabolism and to determine whether reduced statin exposure during ESL therapy has clinical consequences.

SUBJECTS AND METHODS: We conducted a post-hoc analysis of pooled data for serum lipids (laboratory values) from three phase III, multicenter, randomized, double-blind, placebo-controlled trials of adjunctive ESL therapy (400, 800, or 1200 mg once daily) in patients with treatment-refractory partial-onset seizures. Changes from baseline in serum lipid levels were analyzed according to use of statins and/or enzyme-inducing antiepileptic drugs (EIAEDs) during the baseline period.

KEY FINDINGS: In total, 426 and 1021 placebo- and ESL-treated …

Largest Gwas Of Ptsd (N=20 070) Yields Genetic Overlap With Schizophrenia And Sex Differences In Heritability., L E Duncan, A Ratanatharathorn, A E Aiello, L M Almli, A B Amstadter, A E Ashley-Koch, D G Baker, J C Beckham, L J Bierut, J Bisson, B Bradley, C-Y Chen, S Dalvie, L A Farrer, S Galea, M E Garrett, J E Gelernter, G Guffanti, M A Hauser, E O Johnson, R C Kessler, N A Kimbrel, A King, N Koen, H R Kranzler, M W Logue, A X Maihofer, A R Martin, M W Miller, R A Morey, N R Nugent, J P Rice, S Ripke, A L Roberts, N L Saccone, J W Smoller, D J Stein, M B Stein, J A Sumner, M Uddin, R J Ursano, D E Wildman, R Yehuda, H Zhao, M J Daly, I Liberzon, K J Ressler, C M Nievergelt, K C Koenen

Open Access Publications

The Psychiatric Genomics Consortium-Posttraumatic Stress Disorder group (PGC-PTSD) combined genome-wide case-control molecular genetic data across 11 multiethnic studies to quantify PTSD heritability, to examine potential shared genetic risk with schizophrenia, bipolar disorder, and major depressive disorder and to identify risk loci for PTSD. Examining 20 730 individuals, we report a molecular genetics-based heritability estimate (h

Decision Aid Use During Post-Biopsy Consultations For Localized Prostate Cancer., Margaret Holmes-Rovner, Akshay Srikanth, Stephen G. Henry, Aisha Langford, David R. Rovner, Angela Fagerlin

Emergency Medicine Articles

BACKGROUND: Decision Aids (DAs) effectively translate medical evidence for patients but are not routinely used in clinical practice. Little is known about how DAs are used during patient-clinician encounters.

OBJECTIVE: To characterize the content and communicative function of high-quality DAs during diagnostic clinic visits for prostate cancer.

PARTICIPANTS: 252 men newly diagnosed with localized prostate cancer who had received a DA, 45 treating physicians at 4 US Veterans Administration urology clinics.

METHODS: Qualitative analysis of transcribed audio recordings was used to inductively develop categories capturing content and function of all direct references to DAs (booklet talk). The presence or absence …

Word-List Intrusion Errors Predict Progression To Mild Cognitive Impairment, Kelsey R Thomas, Joel Eppig, Emily C Edmonds, Diane M Jacobs, David J Libon, Rhoda Au, David P Salmon, Mark W Bondi, Alzheimer’S Disease Neuroimaging Initiative

Rowan-Virtua School of Osteopathic Medicine Departmental Research

OBJECTIVE: Preclinical Alzheimer's disease (AD) defined by a positive AD biomarker in the presence of normal cognition is presumed to precede mild cognitive impairment (MCI). Subtle cognitive deficits and cognitive inefficiencies in preclinical AD may be detected through process and error scores on neuropsychological tests in those at risk for progression to MCI.

METHOD: Cognitively normal participants (n = 525) from the Alzheimer's Disease Neuroimaging Initiative were followed for up to 5 years and classified as either stable normal (n = 305) or progressed to MCI (n = 220). Cox regressions were used to determine whether baseline process scores on …

Genome-Wide Interactions With Dairy Intake For Body Mass Index In Adults Of European Descent, Caren E. Smith, Jack L. Follis, Hassan S. Dashti, Toshiko Tanaka, Mariaelisa Graff, Amanda M. Fretts, Tuomas O. Kilpeläinen, Mary K. Wojczynski, Kris Richardson, Mike A. Nalls, Christina-Alexandra Schulz, Yongmei Liu, Alexis C. Frazier-Wood, Esther Van Eekelen, Carol Wang, Paul S. De Vries, Vera Mikkilä, Rebecca Rohde, Bruce M. Psaty, Torben Hansen, Mary F. Feitosa, Chao-Qiang Lai, Denise K. Houston, Luigi Ferruci, Ulrika Ericson, Zhe Wang, Renée De Mutsert, Wendy H. Oddy, Ester A. L. De Jonge, Ilkka Seppälä, Donna K. Arnett

Epidemiology and Environmental Health Faculty Publications

Scope: Body weight responds variably to the intake of dairy foods. Genetic variation may contribute to inter‐individual variability in associations between body weight and dairy consumption.

Methods and results: A genome‐wide interaction study to discover genetic variants that account for variation in BMI in the context of low‐fat, high‐fat and total dairy intake in cross‐sectional analysis was conducted. Data from nine discovery studies (up to 25 513 European descent individuals) were meta‐analyzed. Twenty‐six genetic variants reached the selected significance threshold (p‐interaction <10⁻⁷⁾, and six independent variants (LINC01512‐rs7751666, PALM2/AKAP2‐rs914359, ACTA2‐rs1388, PPP1R12A‐rs7961195, LINC00333‐rs9635058, …

Interaction Between Pre-Treatment Drug Use And Heterogeneity Of Psychiatric Diagnosis Predicts Outcomes In Outpatients With Co-Occurring Disorders., Oladunni Oluwoye, Katherine Hirchak, Emily Leickly, Jordan Skalisky, Sterling M Mcpherson, Debra Srebnik, John M Roll, Richard K Ries, Michael G Mcdonell

Articles, Abstracts, and Reports

We examined whether the interaction of baseline stimulant use, assessed by urine drug tests, and type of serious mental illness (SMI) diagnosis predicted stimulant use in a trial of contingency management (CM). The interaction between baseline stimulant use and SMI diagnoses was significant in the overall sample (p=0.002) when controlling for the main effects of treatment condition, baseline stimulant use, and SMI diagnosis. Similar results were also found within the CM sample. Individuals with bipolar disorder were more or less likely, depending on their baseline stimulant-drug test results, to use stimulants during treatment compared to those with other SMI diagnoses.

Early Procedural Pain Is Associated With Regionally-Specific Alterations In Thalamic Development In Preterm Neonates., Emma G Duerden, Ruth E Grunau, Ting Guo, Justin Foong, Alexander Pearson, Stephanie Au-Young, Raphael Lavoie, M Mallar Chakravarty, Vann Chau, Anne Synnes, Steven P Miller

Brain and Mind Institute Researchers' Publications

Very preterm human neonates are exposed to numerous invasive procedures as part of life-saving care. Evidence suggests that repetitive neonatal procedural pain precedes long-term alterations in brain development. However, to date the link between pain and brain development has limited temporal and anatomic specificity. We hypothesized that early exposure to painful stimuli during a period of rapid brain development, before pain modulatory systems reach maturity, will predict pronounced changes in thalamic development, and thereby cognitive and motor function. In a prospective cohort study, 155 very preterm neonates (82 males, 73 females) born 24-32 weeks' gestation underwent two MRIs at median …

Patient-Centred Attitudes Among Medical Students In Mali, West Africa: A Cross-Sectional Study., Emily A. Hurley, Seydou Doumbia, Caitlin E. Kennedy, Peter J. Winch, Debra L. Roter, Sarah M. Murray, Steven A. Harvey

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND/OBJECTIVE: Patient-centred attitudes have been shown to decline during medical training in high-income countries, yet little is known about attitudes among West African medical students. We sought to measure student attitudes towards patient-centredness and examine validity of the 18-item Patient-Practitioner Orientation Scale (PPOS) in this context.

PARTICIPANTS/SETTING: 430 medical students in years 1, 3, 5 and 6 of a 6-year medical training programme in Bamako, Mali.

DESIGN: We conducted a cross-sectional survey, compared the proportion of students who agreed with each PPOS item by gender and academic year, and calculated composite PPOS scores. To examine psychometrics of the PPOS and …

What Are The Characteristics Of Vitamin D Metabolism In Opioid Dependence? An Exploratory Longitudinal Study In Australian Primary Care, Albert Stuart Reece, Gary Hulse

Research outputs 2014 to 2021

OBJECTIVE: Compare vitamin D levels in opioid dependence and control population and adjust for relevant confounding effects. Nuclear hormone receptors (including the vitamin D receptor) have been shown to be key transducers and regulators of intracellular metabolism and comprise an important site of pathophysiological immune and metabolic dysregulation potentially contributing towards pro-ageing changes observed in opioid-dependent patients (ODPs).

DESIGN: Longitudinal prospective comparing ODPs with general medical controls (GMCs).

SETTING: Primary care.

PARTICIPANTS: Prospective review comparing 1168 ODP (72.5% men) and 415 GMC (51.6% men, p

INTERVENTIONS: Nil. Observational study only.

PRIMARY AND SECONDARY OUTCOMES: Serum vitamin D levels and relevant …

Which Neuropsychological Functions Predict Various Processing Speed Components In Children With And Without Attention-Deficit/Hyperactivity Disorder?, Sarah A Vadnais, Michelle Y Kibby, Audreyana C Jagger-Rickels

Publications

We identified statistical predictors of four processing speed (PS) components in a sample of 151 children with and without attention-deficit/hyperactivity disorder (ADHD). Performance on perceptual speed was predicted by visual attention/short-term memory, whereas incidental learning/psychomotor speed was predicted by verbal working memory. Rapid naming was predictive of each PS component assessed, and inhibition predicted all but one task, suggesting a shared need to identify/retrieve stimuli rapidly and inhibit incorrect responding across PS components. Hence, we found both shared and unique predictors of perceptual, cognitive, and output speed, suggesting more specific terminology should be used in future research on PS in …

Imaging-Based Clusters In Current Smokers Of The Copd Cohort Associate With Clinical Characteristics: The Subpopulations And Intermediate Outcome Measures In Copd Study (Spiromics), Babak Haghighi, Sanghun Choi, Jiwoong Choi, Eric A. Hoffman, Alejandro P. Comellas, John D. Newell, R. Graham Barr, Eugene Bleecker, Christopher B. Cooper, David Couper, Mei Lan Han, Nadia N. Hansel, Richard E. Kanner, Ella A. Kazerooni, Eric A.C. Kleerup, Fernando J. Martinez, Wanda O'Neal, Stephen I. Rennard, Prescott G. Woodruff, Ching-Long Lin

Journal Articles: Pulmonary & Critical Care Med

BACKGROUND: Classification of COPD is usually based on the severity of airflow, which may not sensitively differentiate subpopulations. Using a multiscale imaging-based cluster analysis (MICA), we aim to identify subpopulations for current smokers with COPD.

METHODS: Among the SPIROMICS subjects, we analyzed computed tomography images at total lung capacity (TLC) and residual volume (RV) of 284 current smokers. Functional variables were derived from registration of TLC and RV images, e.g. functional small airways disease (fSAD%). Structural variables were assessed at TLC images, e.g. emphysema and airway wall thickness and diameter. We employed an unsupervised method for clustering.

RESULTS: Four clusters …

Exploring The Social Construction Of Masculinity And Its Differential Expression In Culturally Different Populations Using A Mixed Method Approach, Bryan Davis

Browse all Theses and Dissertations

Previous research on gender conflict and strain quantitatively measured traditional masculinity ideology from western societal norms. The current study added to the previous research and qualitatively studied masculinity performance in men from different cultures: Black, Asian, Latino. Results from this study added to masculinity research due to the mixed method approach of both quantitative and qualitative research in males from diverse groups. Information gained from this study enabled masculinity to be operationally defined by different cultural focus groups and compared in order to explore distinct masculinity expression. Information was gained by measuring traditional masculinity ideology quantitatively on the Male Role …

Relationships Among Apathy, Health-Related Quality Of Life, And Function In Huntington's Disease., Nora E Fritz, Nicholas R Boileau, Julie C Stout, Rebecca Ready, Joel S Perlmutter, Jane S Paulsen, Kimberly Quaid, Stacey Barton, Michael K Mccormack, Susan L Perlman, Noelle E Carlozzi

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Up to 90% of individuals with Huntington's disease (HD)-a progressive, inherited neurodegenerative disorder-experience apathy. Apathy is particularly debilitating because it is marked by a reduction in goal-directed behaviors, including self-care, social interactions, and mobility. The objective of this study was to examine relationships between variables of apathy, functional status, physical function, cognitive function, behavioral status/emotional function, and health-related quality of life. Clinician-rated measures of physical, cognitive, and behavioral function, including one clinician-rated item on apathy, and self-reported measures of physical function, health-related quality of life, and emotional, cognitive, and social function were collected in a single session from 487 persons …

Baseline White Matter Hyperintensities And Hippocampal Volume Are Associated With Conversion From Normal Cognition To Mild Cognitive Impairment In The Framingham Offspring Study., Katherine J Bangen, Sarah R Preis, Lisa Delano-Wood, Philip A Wolf, David J Libon, Mark W Bondi, Rhoda Au, Charles Decarli, Adam M Brickman

Rowan-Virtua School of Osteopathic Medicine Departmental Research

INTRODUCTION: We examined associations between magnetic resonance imaging (MRI) markers of cerebrovascular disease and neurodegeneration with mild cognitive impairment (MCI) diagnosis at baseline and conversion from normal cognition to MCI at follow-up.

METHODS: Framingham Offspring participants underwent brain MRI and neuropsychological assessment at baseline (n=1049) and follow-up (n=561). Participants were classified at baseline and at follow-up as cognitively normal or MCI using sensitive neuropsychological criteria. White matter hyperintensity (WMH) volume, covert brain infarcts, hippocampal volume, and total cerebral brain volume were quantified.

RESULTS: Baseline measures of WMH and hippocampal volume were associated with MCI status cross-sectionally and also with conversion …

Assessing Working Memory In Mild Cognitive Impairment With Serial Order Recall., Sheina Emrani, David J Libon, Melissa Lamar, Catherine C Price, Angela L Jefferson, Katherine A Gifford, Timothy J Hohman, Daniel A Nation, Lisa Delano-Wood, Amy Jak, Katherine J Bangen, Mark W Bondi, Adam M Brickman, Jennifer Manly, Rodney Swenson, Rhoda Au, Consortium For Clinical And Epidemiological Neuropsychological Data Analysis (Cenda)

Rowan-Virtua School of Osteopathic Medicine Departmental Research

BACKGROUND: Working memory (WM) is often assessed with serial order tests such as repeating digits backward. In prior dementia research using the Backward Digit Span Test (BDT), only aggregate test performance was examined.

OBJECTIVE: The current research tallied primacy/recency effects, out-of-sequence transposition errors, perseverations, and omissions to assess WM deficits in patients with mild cognitive impairment (MCI).

METHODS: Memory clinic patients (n = 66) were classified into three groups: single domain amnestic MCI (aMCI), combined mixed domain/dysexecutive MCI (mixed/dys MCI), and non-MCI where patients did not meet criteria for MCI. Serial order/WM ability was assessed by asking participants to repeat …

Cell-Type-Specific Changes In Intrinsic Excitability In The Subiculum Following Learning And Exposure To Novel Environmental Contexts., Amy R Dunn, Sarah M Neuner, Shengyuan Ding, Kevin A Hope, Kristen M S O'Connell, Cathleen Lutz

Faculty Research 2018

The subiculum is the main target of the hippocampal region CA1 and is the principle output region of the hippocampus. The subiculum is critical to learning and memory, although it has been relatively understudied. There are two functional types of principle neurons within the subiculum: regular spiking (RS) and burst spiking (BS) neurons. To determine whether these cell types are differentially modified by learning-related experience, we performed whole-cell patch clamp recordings from male mouse brain slices following contextual fear conditioning (FC) and memory retrieval relative to a number of control behavioral paradigms. RS cells, but not BS cells, displayed a …

Centrilobular Emphysema And Coronary Artery Calcification: Mediation Analysis In The Spiromics Cohort, Surya P. Bhatt, Hrudaya P. Nath, Young-Il Kim, Rekha Ramachandran, Jubal R. Watts, Nina L.J. Terry, Sushil Sonavane, Swati P. Deshmane, Prescott G. Woodruff, Elizabeth C. Oelsner, Sandeep Bodduluri, Meilan K. Han, Wassim W. Labaki, J. Michael Wells, Fernando J. Martinez, R. Graham Barr, Mark T. Dransfield, Spiromics Investigators

Journal Articles: Pulmonary & Critical Care Med

BACKGROUND: Chronic obstructive pulmonary disease (COPD) is associated with a two-to-five fold increase in the risk of coronary artery disease independent of shared risk factors. This association is hypothesized to be mediated by systemic inflammation but this link has not been established.

METHODS: We included 300 participants enrolled in the SPIROMICS cohort, 75 each of lifetime non-smokers, smokers without airflow obstruction, mild-moderate COPD, and severe-very severe COPD. We quantified emphysema and airway disease on computed tomography, characterized visual emphysema subtypes (centrilobular and paraseptal) and airway disease, and used the Weston visual score to quantify coronary artery calcification (CAC). We used …

Which Neuropsychological Functions Predict Various Processing Speed Components In Children With And Without Attention-Deficit/Hyperactivity Disorder?, Sarah A Vadnais, Michelle Y Kibby, Audreyana C Jagger-Rickels

Publications

We identified statistical predictors of four processing speed (PS) components in a sample of 151 children with and without attention-deficit/hyperactivity disorder (ADHD). Performance on perceptual speed was predicted by visual attention/short-term memory, whereas incidental learning/psychomotor speed was predicted by verbal working memory. Rapid naming was predictive of each PS component assessed, and inhibition predicted all but one task, suggesting a shared need to identify/retrieve stimuli rapidly and inhibit incorrect responding across PS components. Hence, we found both shared and unique predictors of perceptual, cognitive, and output speed, suggesting more specific terminology should be used in future research on PS in …

Which Neuropsychological Functions Predict Various Processing Speed Components In Children With And Without Attention-Deficit/Hyperactivity Disorder?, Sarah A Vadnais, Michelle Y Kibby, Audreyana C Jagger-Rickels

Publications

We identified statistical predictors of four processing speed (PS) components in a sample of 151 children with and without attention-deficit/hyperactivity disorder (ADHD). Performance on perceptual speed was predicted by visual attention/short-term memory, whereas incidental learning/psychomotor speed was predicted by verbal working memory. Rapid naming was predictive of each PS component assessed, and inhibition predicted all but one task, suggesting a shared need to identify/retrieve stimuli rapidly and inhibit incorrect responding across PS components. Hence, we found both shared and unique predictors of perceptual, cognitive, and output speed, suggesting more specific terminology should be used in future research on PS in …

Lower Serum Iga Is Associated With Copd Exacerbation Risk In Spiromics., Nirupama Putcha, Gabriel G Paul, Antoine Azar, Robert A Wise, Wanda K O'Neal, Mark T Dransfield, Prescott G Woodruff, Jeffrey L Curtis, Alejandro P Comellas, M Bradley Drummond, Allison A. Lambert, Laura M Paulin, Ashraf Fawzy, Richard E Kanner, Robert Paine, Meilan K Han, Fernando J Martinez, Russell P Bowler, R Graham Barr, Nadia N Hansel

Articles, Abstracts, and Reports

BACKGROUND: Decreased but measurable serum IgA levels (≤70 mg/dL) have been associated with risk for infections in some populations, but are unstudied in COPD. This study tested the hypothesis that subnormal serum IgA levels would be associated with exacerbation risk in COPD.

METHODS: Data were analyzed from 1,049 COPD participants from the observational cohort study SPIROMICS (535 (51%) women; mean age 66.1 (SD 7.8), 338 (32%) current smokers) who had baseline serum IgA measured using the Myriad RBM biomarker discovery platform. Exacerbation data was collected prospectively (mean 944.3 (SD 281.3) days), and adjusted linear, logistic and zero-inflated negative binomial regressions …

The Development Of Azd7624 For Prevention Of Exacerbations In Copd: A Randomized Controlled Trial, Naimish R. Patel, Danen M. Cunoosamy, Malin Fagerås, Ziad Taib, Sara Asimus, Tove Hegelund-Myrbäck, Sofia Lundin, Katerina Pardali, Nisha Kurian, Eva Ersdal, Cecilia Kristensson, Katarina Korsback, Robert Palmér, Mary N. Brown, Steven Greenaway, Leonard Siew, Graham W. Clarke, Stephen I. Rennard, Barry J. Make, Robert A. Wise, Paul Jansson

Journal Articles: Pulmonary & Critical Care Med

BACKGROUND: p38 mitogen-activated protein kinase (MAPK) plays a central role in the regulation and activation of pro-inflammatory mediators. COPD patients have increased levels of activated p38 MAPK, which correlate with increased lung function impairment, alveolar wall inflammation, and COPD exacerbations.

OBJECTIVES: These studies aimed to assess the effect of p38 inhibition with AZD7624 in healthy volunteers and patients with COPD. The principal hypothesis was that decreasing lung inflammation via inhibition of p38α would reduce exacerbations and improve quality of life for COPD patients at high risk for acute exacerbations.

METHODS: The p38 isoform most relevant to lung inflammation was assessed …

Effective Connectivity Measured Using Optogenetically Evoked Hemodynamic Signals Exhibits Topography Distinct From Resting State Functional Connectivity In The Mouse, Adam Q Bauer, Andrew W Kraft, Grant A Baxter, Patrick W Wright, Matthew D Reisman, Annie R Bice, Jasmine J Park, Michael R Bruchas, Abraham Z Snyder, Jin-Moo Lee, Joseph P Culver

2010-2019 OA Pubs

Brain connectomics has expanded from histological assessment of axonal projection connectivity (APC) to encompass resting state functional connectivity (RS-FC). RS-FC analyses are efficient for whole-brain mapping, but attempts to explain aspects of RS-FC (e.g., interhemispheric RS-FC) based on APC have been only partially successful. Neuroimaging with hemoglobin alone lacks specificity for determining how activity in a population of cells contributes to RS-FC. Wide-field mapping of optogenetically defined connectivity could provide insights into the brain's structure-function relationship. We combined optogenetics with optical intrinsic signal imaging to create an efficient, optogenetic effective connectivity (Opto-EC) mapping assay. We examined EC patterns of excitatory …

Use Of Caudal Epidural Catheter In A Child With Cerebral Palsy With Prior Posterior Spine (T1-Sacrum) Fusion., Divya Dixit, Mary C. Theroux, Kirk W. Dabney, Freeman Miller

Department of Anesthesiology Faculty Papers

No abstract provided.

Effect Of Hemiepiphysiodesis On The Growth Plate: The Histopathological Changes And Mechanism Exploration Of Recurrence In Mini Pig Model., Jing Ding, Jin He, Zhi-Qiang Zhang, Zhen-Kai Wu, Fang-Chun Jin

Manuscripts, Articles, Book Chapters and Other Papers

Purpose: Hemiepiphysiodesis has been widely used to correct angular deformity of long bone in immature patients. However, there is a limited knowledge about the biomechanical effect of this technique on the histopathological changes of the growth plate and the mechanism of recurrence of malformation after implant removal. We aimed to evaluate the biomechanical effect of hemiepiphysiodesis on the histopathological changes of the growth plate and the mechanism of recurrence of malformation after implant removal in Bama miniature pigs, and to explore the role of asymmetric stress during this procedure.

Methods: Eight 3-month-old male Bama miniature pigs sustained surgeries on the …

Who's Distressed? A Comparison Of Diabetes-Related Distress By Type Of Diabetes And Medication, Jana L. Wardian Phd, Joshua Tate, Irene Folaron, Sky Graybill, Mark True, Tom Sauerwein

Journal Articles: Hospital Medicine

OBJECTIVE: We hypothesized that diabetes-related distress would vary by type of diabetes and medication regimen [Type 1 diabetes (T1DM), Type 2 diabetes with insulin use (T2DM-i), Type 2 diabetes without insulin use (T2DM)]. Thus, the aim of this study was to identify groups with elevated diabetes-related distress.

METHODS: We administered the 17-item Diabetes-related Distress Scale (DDS-17) to 585 patients. We collected demographics, medications, and lab results from patient records.

RESULTS: Patients were categorized by type of diabetes and medication: T1DM (n = 149); T2DM-i (n = 333); and T2DM (n = 103). ANOVA revealed significant differences in sample characteristics. ANCOVA …

Nanoparticle Orientation To Control Rna Loading And Ligand Display On Extracellular Vesicles For Cancer Regression, Fengmei Pi, Daniel W. Binzel, Tae Jin Lee, Zhefeng Li, Meiyan Sun, Piotr G. Rychahou, Hui Li, Farzin Haque, Shaoying Wang, Carlo M. Croce, Bin Guo, B. Mark Evers, Peixuan Guo

Markey Cancer Center Faculty Publications

Nanotechnology offers many benefits, and here we report an advantage of applying RNA nanotechnology for directional control. The orientation of arrow-shaped RNA was altered to control ligand display on extracellular vesicle membranes for specific cell targeting, or to regulate intracellular trafficking of small interfering RNA (siRNA) or microRNA (miRNA). Placing membrane-anchoring cholesterol at the tail of the arrow results in display of RNA aptamer or folate on the outer surface of the extracellular vesicle. In contrast, placing the cholesterol at the arrowhead results in partial loading of RNA nanoparticles into the extracellular vesicles. Taking advantage of the RNA ligand for …

Determination Of An Optimal Response Cut-Off Able To Predict Progression-Free Survival In Patients With Well-Differentiated Advanced Pancreatic Neuroendocrine Tumours Treated With Sunitinib: An Alternative To The Current Recist-Defined Response., Angela Lamarca, Jorge Barriuso, Matthew Kulke, Ivan Borbath, Heinz-Josef Lenz, Jean Luc Raoul, Neal J. Meropol, Catherine Lombard-Bohas, James Posey, Sandrine Faivre, Eric Raymond, Juan W. Valle

Department of Medical Oncology Faculty Papers

BACKGROUND: Sunitinib prolongs progression-free survival (PFS) in patients with advanced pancreatic neuroendocrine tumours (pNET). Response Evaluation Criteria in Solid Tumors (RECIST)-defined partial responses (PR; classically defined as ⩾30% size decrease from baseline) are infrequent.

METHODS: Individual data of pNET patients from the phase II [NCT00056693] and pivotal phase III [NCT00428597] trials of sunitinib were analysed in this investigator-initiated, post hoc study. The primary objective was to determine the optimal RECIST (v.1.0) response cut-off value to identify patients who were progression-free at 11 months (median PFS in phase III trial); and the most informative time-point (highest area under the curve (AUC) …

A Standardized Comparison Of Peri-Operative Complications After Minimally Invasive Esophagectomy: Ivor Lewis Versus Mckeown., Andrew M. Brown, Michael J. Pucci, Adam C. Berger, Talar Tatarian, Nathaniel R. Evans Iii, Ernest L. Rosato, Francesco Palazzo

Department of Surgery Faculty Papers

BACKGROUND: While our institutional approach to esophageal resection for cancer has traditionally favored a minimally invasive (MI) 3-hole, McKeown esophagectomy (MIE 3-hole) during the last five years several factors has determined a shift in our practice with an increasing number of minimally invasive Ivor Lewis (MIE IL) resections being performed. We compared peri-operative outcomes of the two procedures, hypothesizing that MIE IL would be less morbid in the peri-operative setting compared to MIE 3-hole.

METHODS: Our institution's IRB-approved esophageal database was queried to identify all patients who underwent totally MI esophagectomy (MIE IL vs. MIE 3-hole) from June 2011 to …

Predictors Of Noncompliance To Antihypertensive Therapy Among Hypertensive Patients Ghana: Application Of Health Belief Model, Yaa Obirikorang, Christian Obirikorang, Emmanuel Acheampong, Enoch Odame Anto, Daniel Gyamfi, Selorm Philip Segbefia, Michael Opoku Boateng, Dari Pascal Dapilla, Peter Kojo Brenya, Bright Amankwaa, Evans Asamoah Adu, Emmanuel Nsenbah Batu, Adjei Gyimah Akwasi, Beatrice Amoah

Research outputs 2014 to 2021

This study determined noncompliance to antihypertensive therapy (AHT) and its associated factors in a Ghanaian population by using the health belief model (HBM). This descriptive cross-sectional study conducted at Kintampo Municipality in Ghana recruited a total of 678 hypertensive patients. The questionnaire constituted information regarding sociodemographics, a five-Likert type HBM questionnaire, and lifestyle-related factors. The rate of noncompliance to AHT in this study was 58.6%. The mean age (SD) of the participants was 43.5 (±5.2) years and median duration of hypertension was 2 years. Overall, the five HBM constructs explained 31.7% of the variance in noncompliance to AHT with a …