Medicine and Health Sciences Commons^™

Exploring Overlaps Between The Genomic And Environmental Determinants Of Lvh And Stroke: A Multicenter Study In West Africa, Abiodun M. Adeoye, Bruce Ovbiagele, Philip Kolo, Lambert Appiah, Akinyemi Aje, Oladimeji Adebayo, Fred Sarfo, Joshua Akinyemi, Gregory Adekunle, Francis Agyekum, Vincent Shidali, Okechukwu Ogah, Dan Lackland, Mulugeta Gebregziabher, Donna K. Arnett, Hemant K. Tiwari, Rufus Akinyemi, Ojo Olakanmi Olagoke, Ayodipupo Sikiru Oguntade, Taiwo Olunuga, Kelechi Uwanruochi, Carolyn Jenkins, Patrick Adadey, Henry Iheonye, Lukman Owolabi, Reginald Obiako, Samuel Akinjopo, Kevin Armstrong, Albert Akpalu, Adekunle Fakunle

Epidemiology and Environmental Health Faculty Publications

Background

Whether left ventricular hypertrophy (LVH) is determined by similar genomic and environmental risk factors with stroke, or is simply an intermediate stroke marker, is unknown.

Objectives

We present a research plan and preliminary findings to explore the overlap in the genomic and environmental determinants of LVH and stroke among Africans participating in the SIREN (Stroke Investigative Research and Education Network) study.

Methods

SIREN is a transnational, multicenter study involving acute stroke patients and age-, ethnicity-, and sex-matched control subjects recruited from 9 sites in Ghana and Nigeria. Genomic and environmental risk factors and other relevant phenotypes for stroke and …

Cross-Talk Between Clinical And Host-Response Parameters Of Periodontitis In Smokers, Radha Nagarajan, Craig S. Miller, Dolph R. Dawson Iii, Mohanad Al-Sabbagh, Jeffrey L. Ebersole

Institute for Biomedical Informatics Faculty Publications

Background and Objective

Periodontal diseases are a major public health concern leading to tooth loss and have also been shown to be associated with several chronic systemic diseases. Smoking is a major risk factor for the development of numerous systemic diseases, as well as periodontitis. While it is clear that smokers have a significantly enhanced risk for developing periodontitis leading to tooth loss, the population varies regarding susceptibility to disease associated with smoking. This investigation focused on identifying differences in four broad sets of variables, consisting of: (i) host‐response molecules; (ii) periodontal clinical parameters; (iii) antibody responses to periodontal pathogens …

Pain Perception In Latino Vs. Caucasian And Male Vs. Female Patients: Is There Really A Difference?, Molly Aufiero, Holly Stankewicz, Shaila Quazi, Jeanne Jacoby, Jill Stoltzfus

Jefferson Health - Northeast Papers (formerly Aria Health Papers)

INTRODUCTION: Pain is a common emergency department (ED) complaint. It is important to understand the differences in pain perception among different ethnic and demographic populations.

METHODS: We applied a standardized painful stimulus to Caucasian and Latino adult patients to determine whether the level of pain reported differed depending on ethnicity (N=100; 50 Caucasian [C], 50 Latino [L] patients) and gender (N=100; 59 female, 41 male). Patients had an initial pain score of 0 or 1. A blood pressure cuff was inflated 20 mm HG above the patient's systolic blood pressure and held for three minutes. Pain scores, using both a …

Salivary And Serum Adiponectin And C-Reactive Protein Levels In Acute Myocardial Infarction Related To Body Mass Index And Oral Health, Jeffrey L. Ebersole, Richard J. Kryscio, C. Campbell, D. F. Kinane, J. Mcdevitt, N. Christodoulides, P. N. Floriano, Craig S. Miller

Oral Health Practice Faculty Publications

Background and Objective

Adiponectin is produced by adipose cells and is considered an anti‐inflammatory molecule. In contrast, C‐reactive protein (CRP) has been identified as a hallmark of systemic inflammation and used as a risk marker of cardiovascular disease (CVD). Of interest was the relationship of these two biomarkers to oral health and CVD risk.

Material and Methods

This investigation examined these two molecules in serum and unstimulated whole saliva of patients within 48 h of an acute myocardial infarction (AMI) compared to control subjects. We hypothesized a differential response in these biomolecules resulting from the heart attack that would be …

Zinc Transporters Ybtx And Znuabc Are Required For The Virulence Of Yersinia Pestis In Bubonic And Pneumonic Plague In Mice, Alexander G. Bobrov, Olga Kirillina, Marina Y. Fosso, Jacqueline D. Fetherston, M. Clarke Miller, Tiva T. Vancleave, Joseph A. Burlison, William K. Arnold, Matthew B. Lawrenz, Sylvie Garneau-Tsodikova, Robert D. Perry

Microbiology, Immunology, and Molecular Genetics Faculty Publications

A number of bacterial pathogens require the ZnuABC Zinc (Zn²⁺) transporter and/or a second Zn²⁺ transport system to overcome Zn²⁺ sequestration by mammalian hosts. Previously we have shown that in addition to ZnuABC, Yersinia pestis possesses a second Zn²⁺ transporter that involves components of the yersiniabactin (Ybt), siderophore-dependent iron transport system. Synthesis of the Ybt siderophore and YbtX, a member of the major facilitator superfamily, are both critical components of the second Zn²⁺ transport system. Here we demonstrate that a ybtX znu double mutant is essentially avirulent in mouse models of bubonic and pneumonic …

The Quest For Sustained Multiple Morbidity Reduction In Very Low-Birth-Weight Infants: The Antifragility Project., Joseph Kaempf, N M Schmidt, S Rogers, C Novack, M Friant, L Wang, N Tipping

Articles, Abstracts, and Reports

OBJECTIVE: Can a comprehensive, explicitly directive evidence-based guideline for all therapies that might affect the major morbidities of very low-birth-weight (VLBW) infants help a neonatal intensive care unit (NICU) further improve generally favorable morbidity rates? Can Antifragility principles of provider adaptive growth from stressors, enhanced infant risk assessment and adherence to effective therapies minimize unproven treatments and reduce all morbidities?

STUDY DESIGN: Prospectively planned observational trial in VLBW infants: control group born October 2011 to September 2013 and study group October 2013 to September 2015. Multi-disciplinary evidence-based review assigned all NICU treatments into one of four distinct categories: (1) always …

Risk Of Incident Clinical Diagnosis Of Alzheimer's Disease-Type Dementia Attributable To Pathology-Confirmed Vascular Disease, Hiroko H. Dodge, Jian Zhu, Randy Woltjer, Peter T. Nelson, David A. Bennett, Nigel J. Cairns, David W. Fardo, Jeffrey A. Kaye, Deniz-Erten Lyons, Nora Mattek, Julie A. Schneider, Lisa C. Silbert, Chengjie Xiong, Lei Yu, Frederick A. Schmitt, Richard J. Kryscio, Erin L. Abner, Smart Data Consortium

Sanders-Brown Center on Aging Faculty Publications

INTRODUCTION: The presence of cerebrovascular pathology may increase the risk of clinical diagnosis of Alzheimer's disease (AD).

METHODS: We examined excess risk of incident clinical diagnosis of AD (probable and possible AD) posed by the presence of lacunes and large infarcts beyond AD pathology using data from the Statistical Modeling of Aging and Risk of Transition study, a consortium of longitudinal cohort studies with more than 2000 autopsies. We created six mutually exclusive pathology patterns combining three levels of AD pathology (low, moderate, or high AD pathology) and two levels of vascular pathology (without lacunes and large infarcts or with …

Care Coordination For Community Transitions For Individuals Post-Stroke Returning To Low-Resource Rural Communities, Patrick H. Kitzman, Keisha Hudson, Violet Sylvia, Frances Feltner, Johnnie Lovins

Physical Therapy Faculty Publications

High rates of hospital readmissions have been shown within 12 months post-discharge from inpatient rehabilitation following stroke. Multiple studies coupled with our previous work indicate a need for care support for stroke survivors’ transitions to the community. The Kentucky Care Coordination for Community Transitions (KC³T) program was developed to provide access to medical, social, and environmental services to support community transitions for individuals with neurological conditions and their caregivers living in Kentucky. This program assessment was conducted to determine the effectiveness of using a specially trained community health worker to support community transitions. Thirty acute stroke survivors were …

Lisinopril Or Coreg Cr In Reducing Cardiotoxicity In Women With Breast Cancer Receiving Trastuzumab: A Rationale And Design Of A Randomized Clinical Trial, Maya Guglin, Pamela Munster, Angelina Fink, Jeffrey Krischer

Internal Medicine Faculty Publications

Background—Trastuzumab (TZB) is an established therapy for HER2 positive breast cancer. The use of TZB is commonly associated with cardiotoxicity manifesting as asymptomatic decrease in left ventricular ejection fraction (LVEF) or overt heart failure. Several studies demonstrated favorable effects of angiotensin converting enzyme (ACE) inhibitors and beta blockers (BB) in the prevention of chemotherapy-induced cardiotoxicity. We hypothesize that patients, randomized to receive an ACE inhibitor or a beta-blocker during trastuzumab therapy for breast cancer, will maintain a higher LVEF than patients randomized to placebo.

Methods and Results—We designed a prospective, multicenter, randomized, phase II placebo-controlled clinical trial to …

Neurophysiological Capacity In A Working Memory Task Differentiates Dependent From Nondependent Heavy Drinkers And Controls, Michael J. Wesley, Joshua A. Lile, Mark T. Fillmore, Linda J. Porrino

Behavioral Science Faculty Publications

Background—Determining the brain-behavior profiles that differentiate heavy drinkers who are and are not alcohol dependent will inform treatment efforts. Working memory is linked to substance use disorders and can serve as a representation of the demand placed on the neurophysiology associated with cognitive control.

Methods—Behavior and brain activity (via fMRI) were recorded during an N-Back working memory task in controls (CTRL), nondependent heavy drinkers (A-ND) and dependent heavy drinkers (A-D). Typical and novel step-wise analyses examined profiles of working memory load and increasing task demand, respectively.

Results—Performance was significantly decreased in A-D during high working memory load …

Crispr Knockout Of The Hur Gene Causes A Xenograft Lethal Phenotype., Shruti Lal, Edwin C, Cheung, Mahsa Zarei, Ranjan Preet, Saswati N. Chand, Nicole C. Mambelli-Lisboa, Carmella Romeo, Matthew C. Stout, Eric Londin, Austin Goetz, Cinthya Y. Lowder, Avinoam Nevler, Charles Yeo, Paul M. Campbell, Jordan M. Winter, Dan A. Dixon, Jonathan Brody

Department of Surgery Faculty Papers

Pancreatic ductal adenocarcinoma (PDA) is the third leading cause of cancer-related deaths in the United States, whereas colorectal cancer is the third most common cancer. The RNA-binding protein HuR (ELAVL1) supports a pro-oncogenic network in gastrointestinal (GI) cancer cells through enhanced HuR expression. Using a publically available database, HuR expression levels were determined to be increased in primary PDA and colorectal cancer tumor cohorts as compared with normal pancreas and colon tissues, respectively. CRISPR/Cas9 technology was successfully used to delete the HuR gene in both PDA (MIA PaCa-2 and Hs 766T) and colorectal cancer (HCT116) cell lines. HuR deficiency has …

Laboratory Analysis Of Risky Driving At 0.05% And 0.08% Blood Alcohol Concentration, Nicholas A. Van Dyke, Mark T. Fillmore

Psychology Faculty Publications

Background—The public health costs associated with alcohol-related traffic crashes are a continuing problem for society. One harm reduction strategy has been to employ per se limits for blood alcohol concentrations (BACs) at which drivers can legally operate motor vehicles. This limit is currently 0.08% in all 50 US states. Recently, the National Transportation Safety Board proposed lowering the legal limit to 0.05 % (NTSB, 2013). While research has well-validated the ability of alcohol to impair driving performance and heighten crash-risk at these BACs, relatively little is known about the degree to which alcohol might increase drivers’ risk-taking.

Methods—Risk-taking …

Compulsive Buying And Quality Of Life: An Estimate Of The Monetary Cost Of Compulsive Buying Among Adults In Early Midlife, Chenshu Zhang, Judith S. Brook, Carl G. Leukefeld, Mario De La Rosa, David W. Brook

Behavioral Science Faculty Publications

The aims of this study were to examine the associations between compulsive buying and quality of life and to estimate the monetary cost of compulsive buying for a cohort of men and women at mean age 43. Participants came from a community-based random sample of residents in two New York counties (N=548). The participants were followed from adolescence to early midlife. The mean age of participants at the most recent interview was 43.0 (SD=2.8). Fifty five percent of the participants were females. Over 90% of the participants were white. Linear regression analyses showed that compulsive buying was significantly associated with …

Expanding The Genotypic Spectrum Of Bathing Suit Ichthyosis., Nareh V. Marukian, Rong-Hua Hu, Brittany G. Craiglow, Leonard M. Milstone, Jing Zhou, Amy Theos, Hande Kaymakcalan, Deniz A. Akkaya, Jouni J. Uitto, Hassan Vahidnezhad, Leila Youssefian, Susan J. Bayliss, Amy S. Paller, Lynn M. Boyden, Keith A. Choate

Department of Dermatology and Cutaneous Biology Faculty Papers

Importance: Bathing suit ichthyosis (BSI) is a rare congenital disorder of keratinization characterized by restriction of scale to sites of relatively higher temperature such as the trunk, with cooler areas remaining unaffected. Fewer than 40 cases have been reported in the literature. Bathing suit ichthyosis is caused by recessive, temperature-sensitive mutations in the transglutaminase-1 gene (TGM1). Clear genotype-phenotype correlations have been difficult to establish because several of the same TGM1 mutations have been reported in BSI and other forms of congenital ichthyosis. We identify novel and recurrent mutations in 16 participants with BSI.

Objective: To expand the genotypic spectrum of …

Evaluation Of Chest Pain After Implantable Cardioverter-Defibrillator Placement, Amir Gahremanpour, Mohammad Saeed, Yochai Birnbaum

The Texas Heart Institute Journal

No abstract provided.

Molecular-Based Recursive Partitioning Analysis Model For Glioblastoma In The Temozolomide Era: A Correlative Analysis Based On Nrg Oncology Rtog 0525., Erica Hlavin Bell, Stephanie L Pugh, Joseph P. Mcelroy, Mark R. Gilbert, Minesh Mehta, Alexander C Klimowicz, Anthony Magliocco, Markus Bredel, Pierre Robe, Anca L. Grosu, Roger Stupp, Walter Curran, Aline P. Becker, Andrea L. Salavaggione, Jill S. Barnholtz-Sloan, Kenneth Aldape, Deborah T. Blumenthal, Paul D. Brown, Jon Glass, Luis Souhami, R. Jeffrey Lee, David Brachman, John Flickinger, Minhee Won, Arnab Chakravarti

Department of Neurosurgery Faculty Papers

Importance: There is a need for a more refined, molecularly based classification model for glioblastoma (GBM) in the temozolomide era.

Objective: To refine the existing clinically based recursive partitioning analysis (RPA) model by incorporating molecular variables.

Design, Setting, and Participants: NRG Oncology RTOG 0525 specimens (n = 452) were analyzed for protein biomarkers representing key pathways in GBM by a quantitative molecular microscopy-based approach with semiquantitative immunohistochemical validation. Prognostic significance of each protein was examined by single-marker and multimarker Cox regression analyses. To reclassify the prognostic risk groups, significant protein biomarkers on single-marker analysis were incorporated into an RPA model …

Transcatheter Tricuspid Valve-In-Valve Replacement With An Edwards Sapien 3 Valve, Pranav Loyalka, Angelo Nascimbene, Benjamin Metz, Igor D Gregoric, Ajay Sundara Raman, Biswajit Kar

The Texas Heart Institute Journal

A few case reports and case series have documented the outcomes in patients with tricuspid bioprosthetic valvular degeneration who underwent transcatheter implantation of the Medtronic Melody and the Edwards Sapien XT and Sapien 3 valves. In this report, we describe the case of a 49-year-old woman with severe bioprosthetic tricuspid valvular stenosis and multiple comorbidities who underwent transcatheter tricuspid valve replacement with a Sapien 3 valve.

White Blood Cell Subtypes Are Associated With A Greater Long-Term Risk Of Death After Acute Myocardial Infarction, Arthur Shiyovich, Harel Gilutz, Ygal Plakht

The Texas Heart Institute Journal

We evaluated the association between white blood cell counts and long-term mortality rates in 2,129 patients (mean age, 65.3 ± 13.5 yr; 69% men) who had survived acute myocardial infarction. We obtained white blood cell counts and differential counts of white blood cell subtypes within the first 72 hours of hospital admission. The primary outcome was all-cause death at 1, 5, and 10 years after acute myocardial infarction.

In regard to death in the long term, we found significant negative linear associations (lymphocytes), positive linear associations (neutrophils and the neutrophil-to-lymphocyte ratio), and nonlinear U-shaped associations (basophils, eosinophils, monocytes, and total …

Clara's Final Christmas Gift, Gus W Krucke

Faculty, Staff and Student Publications

No abstract provided.

Incremental Validity Of The Pid-5 In Relation To The Five Factor Model And Traditional Polythetic Personality Criteria Of The Dsm-5, J Christopher Fowler, Michelle A Patriquin, Alok Madan, Jon G Allen, B Christopher Frueh, John M Oldham

Staff and Researcher Publications

Background: This study assessed the incremental validity of the Personality Inventory for DSM-5 (PID-5) beyond the impact of demographic, burden of illness, five-factor model of personality, and DSM-5 personality disorder criteria with respect to associations with admission psychiatric symptoms and functional disability.

Methods: Psychiatric inpatients (N = 927) were administered the Big Five Inventory, PID-5, and personality disorder criteria counts. Prior treatment utilization, as well as baseline depression, anxiety, emotion regulation, and functional disability were administered within two days of the personality measures. Hierarchical regression models were used to explore the association of personality functioning with symptom functioning, emotion regulation …

Bi-Lateral Compartment Syndrome In Feet And Gastrocnemius-Soleus Complex Of A High School Female Soccer And Lacrosse Player, Cassandra Parise, Jeffery Huston

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In Volume 3, Issue 1 of the JSMAHS you will find Professional research abstracts, as well as Under Graduate student research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 3^rd Annual OATA Special Edition.

Serious Mental Illness Among Young Adult Women Who Use Drugs In The Club Scene: Co-Occurring Biopsychosocial Factors, Maayan Lawental, Hilary L. Surratt, Mance E. Buttram, Steven P. Kurtz

Center for Health Services Research Faculty Publications

Young women who regularly attend nightclubs are at risk for numerous health and social consequences, including mental distress, sexual and physical victimization and substance dependence. This paper uses a biopsychosocial framework to examine co-occurring mental health problems, victimization, substance dependence, sexual risk and physical pain among a sample of young women who use drugs (N = 222) in Miami’s club scene. The majority of women were under 24 years old, Hispanic, and identified as heterosexual. Almost all the women reported past 90-day use of alcohol, ecstasy/MDMA, marijuana, cocaine and prescription opioids and benzodiazepines; 32% of women reported being in a …

The Effects Of Nicotine In The Neonatal Quinpirole Rodent Model Of Psychosis: Neural Plasticity Mechanisms And Nicotinic Receptor Changes, Daniel J. Peterson, W. Drew Gill, John M. Dose, Donald B. Hoover, James R. Pauly, Elizabeth D. Cummins, Katherine C. Burgess, Russell W. Brown

Pharmaceutical Sciences Faculty Publications

Neonatal quinpirole (NQ) treatment to rats increases dopamine D2 receptor sensitivity persistent throughout the animal’s lifetime. In Experiment 1, we analyzed the role of α7 and α4β2 nicotinic receptors (nAChRs) in nicotine behavioral sensitization and on the brain-derived neurotrophic factor (BDNF) response to nicotine in NQ- and neonatally saline (NS)-treated rats. In Experiment 2, we analyzed changes in α7 and α4β2 nAChR density in the nucleus accumbens (NAcc) and dorsal striatum in NQ and NS animals sensitized to nicotine. Male and female Sprague-Dawley rats were neonatally treated with quinpirole (1 mg/kg) or saline from postnatal days (P)1–21. Animals were given …

Single-Trait And Multi-Trait Genome-Wide Association Analyses Identify Novel Loci For Blood Pressure In African-Ancestry Populations, Jingjing Liang, Thu H. Le, Digna R. Velez Edwards, Bamidele O. Tayo, Kyle J. Gaulton, Jennifer A. Smith, Yingchang Lu, Richard A. Jensen, Guanjie Chen, Lisa R. Yanek, Karen Schwander, Salman M. Tajuddin, Tamar Sofer, Wonji Kim, James Kayima, Colin A. Mckenzie, Ervin Fox, Michael A. Nalls, J. Hunter Young, Yan V. Sun, Jacqueline M. Lane, Sylvia Cechova, Jie Zhou, Hua Tang, Myriam Fornage, Solomon K. Musani, Heming Wang, Juyoung Lee, Adebowale Adeyemo, Albert W. Dreisbach, Donna K. Arnett

Epidemiology and Environmental Health Faculty Publications

Hypertension is a leading cause of global disease, mortality, and disability. While individuals of African descent suffer a disproportionate burden of hypertension and its complications, they have been underrepresented in genetic studies. To identify novel susceptibility loci for blood pressure and hypertension in people of African ancestry, we performed both single and multiple-trait genome-wide association analyses. We analyzed 21 genome-wide association studies comprised of 31,968 individuals of African ancestry, and validated our results with additional 54,395 individuals from multi-ethnic studies. These analyses identified nine loci with eleven independent variants which reached genome-wide significance (P < 1.25×10⁻⁸) for either systolic and …

Impact Of Ibrutinib Dose Adherence On Therapeutic Efficacy In Patients With Previously Treated Cll/Sll., Paul M Barr, Jennifer R Brown, Peter Hillmen, Susan O'Brien, Jacqueline C Barrientos, Nishitha M Reddy, Steven Coutre, Stephen P Mulligan, Ulrich Jaeger, Richard R Furman, Florence Cymbalista, Marco Montillo, Claire Dearden, Tadeusz Robak, Carol Moreno, John M Pagel, Jan A Burger, Samuel Suzuki, Juthamas Sukbuntherng, George Cole, Danelle F James, John C Byrd

Articles, Abstracts, and Reports

Ibrutinib, an oral inhibitor of Bruton's tyrosine kinase (BTK), at a once-daily dose of 420 mg achieved BTK active-site occupancy in patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) that was maintained at 24 hours. It is unknown if intermittent interruption of ibrutinib therapy contributes to altered clinical outcomes. We therefore evaluated the effect of ibrutinib dose adherence on patient outcomes in the phase 3 RESONATE trial. The overall mean dose intensity (DI) was 95% with median treatment duration of ∼9 months. Pharmacokinetic assessment of ibrutinib exposure at 420-mg dose suggested similar exposure regardless of patient weight or age. …

A Serosurvey Of Selected Cystogenic Coccidia In Spanish Equids: First Detection Of Anti-Besnoitia Spp. Specific Antibodies In Europe, Daniel Gutiérrez-Expósito, Ignacio García-Bocanegra, Daniel K. Howe, Antonio Arenas-Montes, Michelle R. Yeargan, Sallyanne L. Ness, Luis M Ortega-Mora, G. Álvarez-García

Veterinary Science Faculty Publications

Background: Equine besnoitiosis, caused by Besnoitia bennetti, and equine protozoal myeloencephalitis (EPM), caused by Sarcocystis neurona and Neospora hughesi are relevant equine diseases in the Americas that have been scarcely studied in Europe. Thus, a serosurvey of these cystogenic coccidia was carried out in Southern Spain. A cross-sectional study was performed and serum samples from horses (n = 553), donkeys (n = 85) and mules (n = 83) were included. An in-house enzyme-linked immunosorbent assay (ELISA) was employed to identify a Besnoitia spp. infection and positive results were confirmed by an a posteriori western blot. For Neospora …

The Effect Of Menstrual Phase And Oral Contraceptive Steroids On Caffeine During Cycling Performance, Annette M. Lemanski

Masters Theses, 2010-2019

PURPOSE: There is evidence that female sex hormones impact caffeine metabolism, with decreased CYP1A2 activity and diminished caffeine clearance in women with higher estrogen levels. Therefore, the objectives of this project were to determine the effects of oral contraceptives and menstrual cycle on the benefits of caffeine supplementation for cycling performance. METHODS: Sixteen recreationally trained female cyclists, oral contraceptive steroid (OCS) users (n=8, age = 21.4 ± 1.4 years, height = 168.4 ± 3.6 cm, weight = 63.6 ± 7.2kg, VO_2max = 48.0 ± 4.0 ml/kg/min), and non-users (n=8, age = 20.9 ± 2.1 years, height = 161.0 ± …

Online Neural Monitoring Of Statistical Learning., Laura J Batterink, Ken A Paller

Brain and Mind Institute Researchers' Publications

The extraction of patterns in the environment plays a critical role in many types of human learning, from motor skills to language acquisition. This process is known as statistical learning. Here we propose that statistical learning has two dissociable components: (1) perceptual binding of individual stimulus units into integrated composites and (2) storing those integrated representations for later use. Statistical learning is typically assessed using post-learning tasks, such that the two components are conflated. Our goal was to characterize the online perceptual component of statistical learning. Participants were exposed to a structured stream of repeating trisyllabic nonsense words and a …

Sex-Specific Associations Of Maternal Birthweight With Offspring Birthweight In The Omega Study., Collette N Ncube, Amelia R Gavin, Michelle A Williams, Chunfang Qiu, Tanya K Sorensen, Daniel A Enquobahrie

Articles, Abstracts, and Reports

PURPOSE: We investigated nonlinear and offspring sex-specific associations of maternal birthweight (BW) with offspring BW among participants of the Omega study, a pregnancy cohort.

METHODS: Maternal BW was modeled as a continuous variable, linear spline and binary variable indicating low birthweight (LBW;≥2500 grams). Offspring BW was modeled as a continuous and binary variable in regression models. Nonlinearity was assessed using likelihood ratio tests (LRTs) in marginal linear spline models.

RESULTS: For every 100-gram increase of maternal BW, offspring BW increased by 22.29 (95% CI: 17.57, 27.02) or 23.41 (95% CI: 6.87, 39.96) grams among mothers with normal BW or born …

Restriction Spectrum Imaging Improves Risk Stratification In Patients With Glioblastoma., A P Krishnan, R Karunamuni, K M Leyden, T M Seibert, R L Delfanti, J M Kuperman, H Bartsch, P Elbe, A Srikant, A M Dale, Santosh Kesari, D E Piccioni, J A Hattangadi-Gluth, N Farid, C R Mcdonald, N S White

Articles, Abstracts, and Reports

BACKGROUND AND PURPOSE: ADC as a marker of tumor cellularity has been promising for evaluating the response to therapy in patients with glioblastoma but does not successfully stratify patients according to outcomes, especially in the upfront setting. Here we investigate whether restriction spectrum imaging, an advanced diffusion imaging model, performed after an operation but before radiation therapy, could improve risk stratification in patients with newly diagnosed glioblastoma relative to ADC.

MATERIALS AND METHODS: Pre-radiation therapy diffusion-weighted and structural imaging of 40 patients with glioblastoma were examined retrospectively. Restriction spectrum imaging and ADC-based hypercellularity volume fraction (restriction spectrum imaging-FLAIR volume fraction, …