Open Access. Powered by Scholars. Published by Universities.®

Medical Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2017

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 571 - 600 of 1444

Full-Text Articles in Medical Sciences

Creation Of An Immunodeficient Hla-Transgenic Mouse (Humamice) And Functional Validation Of Human Immunity After Transfer Of Hla-Matched Human Cells, Yang Zeng, Bingrun Liu, Marie-Therese Rubio, Xinyue Wang, David M. Ojcius, Ruoping Tang, Antoine Durrbach, Zhitao Ru, Yusen Zhou, Yu-Chun Lone Apr 2017

Creation Of An Immunodeficient Hla-Transgenic Mouse (Humamice) And Functional Validation Of Human Immunity After Transfer Of Hla-Matched Human Cells, Yang Zeng, Bingrun Liu, Marie-Therese Rubio, Xinyue Wang, David M. Ojcius, Ruoping Tang, Antoine Durrbach, Zhitao Ru, Yusen Zhou, Yu-Chun Lone

All Dugoni School of Dentistry Faculty Articles

Research on human immunology has been hindered by the lack of optimal small animal models, given that the protective immune responses of human and non-human species show significant differences. However, due to ethical constraints[1] and the high cost of clinical trials, it is urgent to improve the current animal models that can mimic faithfully human physiology, particularly the human immune system (HIS). HIS mice had been generated recently by engrafting human hematopoietic stem cells (hHSCs) or human peripheral mononuclear cells (hPBMCs) into highly immuno-deficient mice such as NSG, NOG or NRG mice. However, a major experimental drawback for studies using …


The Relationship Between The Prevalence Of Hiv/Aids And Associated Socioeconomic And Behavioral Factors, Viktoria Kolpacoff Apr 2017

The Relationship Between The Prevalence Of Hiv/Aids And Associated Socioeconomic And Behavioral Factors, Viktoria Kolpacoff

Honors Theses

Human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) are a global epidemic affecting almost 40 million people. Studies show that the spread of HIV is associated with numerous and complex factors such as poverty, religious beliefs, hygiene practices, and gender inequalities. I analyzed the relationship between the prevalence of HIV and four socioeconomic and behavioral factors: per capita Gross Domestic Product, the Globalization Index, the Social Institutions and Gender Index, and literacy rates. I used logistic regression to regress the log-odds of becoming infected with HIV against the four associated factors and calculated an odds ratio for each …


Week Of April 10, 2017, New York Medical College Apr 2017

The Use Of Rhyme, Rhythm, And Melody As A Form Of Repetition Priming To Aid In Encoding, Storage, And Retrieval Of Semantic Memories In Alzheimer’S Patients, Faiz Plastikwala Apr 2017

The Use Of Rhyme, Rhythm, And Melody As A Form Of Repetition Priming To Aid In Encoding, Storage, And Retrieval Of Semantic Memories In Alzheimer’S Patients, Faiz Plastikwala

Virginias Collegiate Honors Council Conference

Treating Alzheimer’s disease, especially through non-pharmaceutical means, has become increasingly important over the past few decades. I examined the use of melody, rhyme, and rhythm as encoding mechanisms to aid in the retrieval of long term semantic information by juxtaposing previous experiments in the field. Melody, rhyme, and rhythm provide an organizational structure to facilitate the encoding of information. Specifically, chunking, the grouping of smaller units into larger ‘chunks’, helps facilitate long term encoding in patients, and is the byproduct of the organizational structure of a text. A major drawback of using these devices is the loss in the depth …


Diabetic Cardiomyopathy: An Immunometabolic Perspective., Paras K. Mishra, Wei Ying, Shyam Sundar Nandi, Gautam K. Bandyopadhyay, Kaushik K. Patel, Sushil K. Mahata Apr 2017

Diabetic Cardiomyopathy: An Immunometabolic Perspective., Paras K. Mishra, Wei Ying, Shyam Sundar Nandi, Gautam K. Bandyopadhyay, Kaushik K. Patel, Sushil K. Mahata

Journal Articles: Cellular & Integrative Physiology

The heart possesses a remarkable inherent capability to adapt itself to a wide array of genetic and extrinsic factors to maintain contractile function. Failure to sustain its compensatory responses results in cardiac dysfunction, leading to cardiomyopathy. Diabetic cardiomyopathy (DCM) is characterized by left ventricular hypertrophy and reduced diastolic function, with or without concurrent systolic dysfunction in the absence of hypertension and coronary artery disease. Changes in substrate metabolism, oxidative stress, endoplasmic reticulum stress, formation of extracellular matrix proteins, and advanced glycation end products constitute the early stage in DCM. These early events are followed by steatosis (accumulation of lipid droplets) …


Unfair Competition Governs The Interaction Of Pcpi-17 With Myosin Phosphatase (Pp1-Mypt1)., Joshua J. Filter, Byron C. Williams, Masumi Eto, David Shalloway, Michael L. Goldberg Apr 2017

Unfair Competition Governs The Interaction Of Pcpi-17 With Myosin Phosphatase (Pp1-Mypt1)., Joshua J. Filter, Byron C. Williams, Masumi Eto, David Shalloway, Michael L. Goldberg

Department of Molecular Physiology and Biophysics Faculty Papers

The small phosphoprotein pCPI-17 inhibits myosin light-chain phosphatase (MLCP). Current models postulate that during muscle relaxation, phosphatases other than MLCP dephosphorylate and inactivate pCPI-17 to restore MLCP activity. We show here that such hypotheses are insufficient to account for the observed rapidity of pCPI-17 inactivation in mammalian smooth muscles. Instead, MLCP itself is the critical enzyme for pCPI-17 dephosphorylation. We call the mutual sequestration mechanism through which pCPI-17 and MLCP interact inhibition by unfair competition: MLCP protects pCPI-17 from other phosphatases, while pCPI-17 blocks other substrates from MLCP's active site. MLCP dephosphorylates pCPI-17 at a slow rate that is, nonetheless, …


Lkb1 Inactivation Drives Lung Cancer Lineage Switching Governed By Polycomb Repressive Complex 2, Haikuo Zhang, Christine Fillmore Brainson, Shohei Koyama, Amanda J. Redig, Ting Chen, Shuai Li, Manav Gupta, Carolina Garcia-De-Alba, Margherita Paschini, Grit S. Herter-Sprie, Gang Lu, Xin Zhang, Bryan P. Marsh, Stephanie J. Tuminello, Chunxiao Xu, Zhao Chen, Xiaoen Wang, Esra A. Akbay, Mei Zheng, Sangeetha Palakurthi, Lynette M. Sholl, Anil K. Rustgi, David J. Kwiatkowski, J. Alan Diehl, Adam J. Bass, Norman E. Sharpless, Glenn Dranoff, Peter S. Hammerman, Hongbin Ji, Nabeel Bardeesy, Dieter Saur, Hideo Watanabe, Carla F. Kim, Kwok-Kin Wong Apr 2017

Lkb1 Inactivation Drives Lung Cancer Lineage Switching Governed By Polycomb Repressive Complex 2, Haikuo Zhang, Christine Fillmore Brainson, Shohei Koyama, Amanda J. Redig, Ting Chen, Shuai Li, Manav Gupta, Carolina Garcia-De-Alba, Margherita Paschini, Grit S. Herter-Sprie, Gang Lu, Xin Zhang, Bryan P. Marsh, Stephanie J. Tuminello, Chunxiao Xu, Zhao Chen, Xiaoen Wang, Esra A. Akbay, Mei Zheng, Sangeetha Palakurthi, Lynette M. Sholl, Anil K. Rustgi, David J. Kwiatkowski, J. Alan Diehl, Adam J. Bass, Norman E. Sharpless, Glenn Dranoff, Peter S. Hammerman, Hongbin Ji, Nabeel Bardeesy, Dieter Saur, Hideo Watanabe, Carla F. Kim, Kwok-Kin Wong

Toxicology and Cancer Biology Faculty Publications

Adenosquamous lung tumours, which are extremely poor prognosis, may result from cellular plasticity. Here, we demonstrate lineage switching of KRAS+ lung adenocarcinomas (ADC) to squamous cell carcinoma (SCC) through deletion of Lkb1 (Stk11) in autochthonous and transplant models. Chromatin analysis reveals loss of H3K27me3 and gain of H3K27ac and H3K4me3 at squamous lineage genes, including Sox2, ΔNp63 and Ngfr. SCC lesions have higher levels of the H3K27 methyltransferase EZH2 than the ADC lesions, but there is a clear lack of the essential Polycomb Repressive Complex 2 (PRC2) subunit EED in the SCC lesions. The pattern of high EZH2, but …


Validation Of The Pre-B Cell Receptor As A Therapeutic Target In B Cell Precursor Acute Lymphoblastic Leukemia, Michael Frank Erasmus Apr 2017

Validation Of The Pre-B Cell Receptor As A Therapeutic Target In B Cell Precursor Acute Lymphoblastic Leukemia, Michael Frank Erasmus

Biomedical Sciences ETDs

This dissertation is built upon the fundamental idea that the pre-B cell receptor (pre-BCR) is important to leukemia cell survival and a logical therapeutic target in B cell precursor acute lymphoblastic leukemia (BCP-ALL). The pre-BCR is expressed early at a specific stage during B cell development where it plays a central role in survival of healthy B lymphocytes. This receptor is composed of the membrane heavy chain (mIgμ) associated with surrogate light chain components, 5 and VpreB. Through the use of advanced imaging modalities, in particular two-color single particle tracking (SPT), we showed that pre-BCRs formed transient, homotypic interactions. These …


G Protein-Coupled Receptor Kinase-2 (Grk-2) Regulates Serotonin Metabolism Through The Monoamine Oxidase Amx-2 In Caenorhabditis Elegans., Jianjun Wang, Jiansong Luo, Dipendra K. Aryal, William C. Wetsel, Richard Nass, Jeffrey L. Benovic Apr 2017

G Protein-Coupled Receptor Kinase-2 (Grk-2) Regulates Serotonin Metabolism Through The Monoamine Oxidase Amx-2 In Caenorhabditis Elegans., Jianjun Wang, Jiansong Luo, Dipendra K. Aryal, William C. Wetsel, Richard Nass, Jeffrey L. Benovic

Department of Biochemistry and Molecular Biology Faculty Papers

G protein-coupled receptors (GPCRs) regulate many animal behaviors. GPCR signaling is mediated by agonist-promoted interactions of GPCRs with heterotrimeric G proteins, GPCR kinases (GRKs), and arrestins. To further elucidate the role of GRKs in regulating GPCR-mediated behaviors, we utilized the genetic model system Caenorhabditis elegans Our studies demonstrate that grk-2 loss-of-function strains are egg laying-defective and contain low levels of serotonin (5-HT) and high levels of the 5-HT metabolite 5-hydroxyindole acetic acid (5-HIAA). The egg laying defect could be rescued by the expression of wild type but not by catalytically inactive grk-2 or by the selective expression of grk-2 in …


Thujone Inhibits The Function Of Α7-Nicotinic Acetylcholine Receptors And Impairs Nicotine-Induced Memory Enhancement In One-Trial Passive Avoidance Paradigm, Ahmed Sultan, Keun-Hang Susan Yang, Dmytro Isaev, Eslam El Nebrisi, Nurulain Syed, Nadia Khan, Christopher F. Howarth, Bassem Sadek, Murat Oz Apr 2017

Thujone Inhibits The Function Of Α7-Nicotinic Acetylcholine Receptors And Impairs Nicotine-Induced Memory Enhancement In One-Trial Passive Avoidance Paradigm, Ahmed Sultan, Keun-Hang Susan Yang, Dmytro Isaev, Eslam El Nebrisi, Nurulain Syed, Nadia Khan, Christopher F. Howarth, Bassem Sadek, Murat Oz

Mathematics, Physics, and Computer Science Faculty Articles and Research

Effects of thujone, a major ingredient of absinthe, wormwood oil and some herbal medicines, were tested on the function of α7 subunit of the human nicotinic acetylcholine (α7 nACh) receptor expressed in Xenopus oocytes using the two-electrode voltage-clamp technique. Thujone reversibly inhibited ACh (100 μM)-induced currents with an IC50 value of 24.7 μM. The effect of thujone was not dependent on the membrane potential and did not involve Ca2+-dependent Cl- channels expressed endogenously in oocytes. Inhibition by thujone was not reversed by increasing ACh concentrations. Moreover, specific binding of [125I] -bungarotoxin was not altered by thujone. Further experiments in SH-EP1 …


Receptor-Associated Protein (Rap) Models In Vivo Reelin Haploinsufficiency: Implications In Schizophrenia, Jamileh Ahmed Apr 2017

Receptor-Associated Protein (Rap) Models In Vivo Reelin Haploinsufficiency: Implications In Schizophrenia, Jamileh Ahmed

USF Tampa Graduate Theses and Dissertations

The “two-hit” schizophrenia hypothesis suggests genetic and environmental abnormalities interrupt early CNS function. This increases vulnerability of a “second hit” and schizophrenia onset. Chronic stress and decreased Reelin signaling are reportedly associated with schizophrenia. Heterozygous Reeler Mice (HRM) show a 50% reduction in Reelin and display major schizophrenia phenotypes. Receptor-Associated Protein (RAP) blocks ligand-association to Reelin receptor Apolipoprotein E receptor 2 (ApoER2). In this study, we sought to replicate major heterozygous reeler mouse (HRM) phenotypes using in vivo RAP studies to establish an experimental in vitro model. Using an in vitro model, we investigated the effects of chronic stress and …


Alterations In Erythrocyte Fatty Acid Composition In Preclinical Alzheimer's Disease, Kathryn Goozee, Pratishtha Chatterjee, Ian James, Kaikai Shen, Hamid R. Sohrabi, Prita R. Ash, Preeti Dave, Bethany Ball, Candice Manyan, Kevin Taddei, Roger Chung, Manohar L. Garg, Ralph Martins Apr 2017

Alterations In Erythrocyte Fatty Acid Composition In Preclinical Alzheimer's Disease, Kathryn Goozee, Pratishtha Chatterjee, Ian James, Kaikai Shen, Hamid R. Sohrabi, Prita R. Ash, Preeti Dave, Bethany Ball, Candice Manyan, Kevin Taddei, Roger Chung, Manohar L. Garg, Ralph Martins

Research outputs 2014 to 2021

Brain and blood fatty acids (FA) are altered in Alzheimer’s disease and cognitively impaired individuals, however, FA alterations in the preclinical phase, prior to cognitive impairment have not been investigated previously. The current study therefore evaluated erythrocyte FA in cognitively normal elderly participants aged 65 – 90 years via trans-methylation followed by gas chromatography. The neocortical beta-amyloid load (NAL) measured via positron emission tomography (PET) using ligand 18F-Florbetaben, was employed to categorise participants as low NAL (standard uptake value ratio; SUVR < 1.35, N = 65) and high NAL or preclinical AD (SUVR ≥ 1.35, N = 35) wherein, linear models were employed to compare FA compositions between the two groups. Increased arachidonic acid (AA, p < 0.05) and decreased docosapentaenoic acid (DPA, p < 0.05) were observed in high NAL. To differentiate low from high NAL, the area under the curve (AUC) generated from a ‘base model’ comprising age, gender, APOEε4 and education (AUC = 0.794) was outperformed by base model + AA:DPA (AUC = 0.836). Our …


Plasma Cross-Gestational Sphingolipidomic Analyses Reveal Potential First Trimester Biomarkers Of Preeclampsia, Aneta Dobierzewska, Sony Soman, Sebastian E Illanes, Andrew J. Morris Apr 2017

Plasma Cross-Gestational Sphingolipidomic Analyses Reveal Potential First Trimester Biomarkers Of Preeclampsia, Aneta Dobierzewska, Sony Soman, Sebastian E Illanes, Andrew J. Morris

Saha Cardiovascular Research Center Faculty Publications

Introduction

Preeclampsia (PE) is a gestational disorder, manifested in the second half of pregnancy by maternal hypertension, proteinuria and generalized edema. PE is a major cause of maternal and fetal morbidity and mortality, accounting for nearly 40% of all premature births worldwide. Bioactive sphingolipids are emerging as key molecules involved in etiopathogenesis of PE, characterized by maternal angiogenic imbalance and symptoms of metabolic syndrome. The aim of this study was to compare the cross-gestational profile of circulating bioactive sphingolipids in maternal plasma from preeclamptic (PE) versus normotensive control (CTL) subjects with the goal of identifying sphingolipids as candidate first trimester …


Effect Of Social Support And Marital Status On Perceived Surgical Effectiveness And 30-Day Hospital Readmission, Owoicho Adogwa, Aladine A. Elsamadicy, Victoria D. Vuong, Ankit I. Mehta, Raul A. Vasquez, Joseph Cheng, Carlos A. Bagley, Isaac O. Karikari Apr 2017

Effect Of Social Support And Marital Status On Perceived Surgical Effectiveness And 30-Day Hospital Readmission, Owoicho Adogwa, Aladine A. Elsamadicy, Victoria D. Vuong, Ankit I. Mehta, Raul A. Vasquez, Joseph Cheng, Carlos A. Bagley, Isaac O. Karikari

Neurosurgery Faculty Publications

Study Design: Retrospective cohort review.

Objective: To determine whether higher levels of social support are associated with improved surgical outcomes after elective spine surgery.

Methods: The medical records of 430 patients (married, n = 313; divorced/separated/widowed, n = 71; single, n = 46) undergoing elective spine surgery at a major academic medical center were reviewed. Patients were categorized by their marital status at the time of surgery. Patient demographics, comorbidities, and postoperative complication rates were collected. All patients had prospectively collected outcomes measures and a minimum of 1-year follow-up. Patient reported outcomes instruments (Oswestry Disability Index, Short Form-36, and visual …


Production Of Putative Enhanced Oral Cholera Vaccine Strains That Express Toxin-Coregulated Pilus, Caitlyn A. Hauke, Ronald K. Taylor Apr 2017

Production Of Putative Enhanced Oral Cholera Vaccine Strains That Express Toxin-Coregulated Pilus, Caitlyn A. Hauke, Ronald K. Taylor

Dartmouth Scholarship

The use of whole cell killed (WCK) oral cholera vaccines is an important strategy for cholera prevention in endemic areas. To overcome current vaccine limitations, we engineered strains of V. cholerae to be non-toxigenic and to express the protective protein colonization factor, toxin-coregulated pilus (TCP), under scale-up conditions potentially amenable to vaccine production. Two V. cholerae clinical strains were selected and their cholera toxin genes deleted. The tcp operon was placed under control of a rhamnose-inducible promoter. Production and stability of TCP were assessed under various conditions. The strains lack detectable cholera toxin production. The addition of 0.1% …


Acetaminophen Associated Neurotoxicity And Its Relevance To Neurodevelopmental Disorders, Seol-Hee Kim Apr 2017

Acetaminophen Associated Neurotoxicity And Its Relevance To Neurodevelopmental Disorders, Seol-Hee Kim

USF Tampa Graduate Theses and Dissertations

Autism is a lifelong neurodevelopmental disorder. The etiology of autism still remains unclear due to the heterogeneous and complex nature of the disorder, however synergistic actions between genetic components and environmental factors have been suggested. Acetaminophen (APAP) is one of the most popular over-the-counter drugs that possess antipyretic and analgesic effects. It is considered a relatively safe and effective within therapeutic doses. Recently, early exposure to APAP has been suggested to be one of the underlying cause of autism. Children are often prescribed APAP to lessen fever or irritability after vaccination during the first year, and APAP may adversely affect …


Air Pollution: An Emerging Concern On The Cardiovascular System, Lauren Martin, Husnia Akrami Apr 2017

Air Pollution: An Emerging Concern On The Cardiovascular System, Lauren Martin, Husnia Akrami

Student Scholar Showcase

No abstract provided.


Exploring Therapeutic Approaches For Marfan Syndrome Associated Aortic Aneurysm, Mitra Esfandiarei Apr 2017

Exploring Therapeutic Approaches For Marfan Syndrome Associated Aortic Aneurysm, Mitra Esfandiarei

Science Seminar Series

Esfandiearei will be discussing her research on understanding the underlying mechanisms contributing to the progression of aortic aneurysm in Marfan syndrome and the protective effects that exercise may have on the disease process in both laboratory animal models and human patients. Her research has been supported by the Canadian Institutes of Health Research (CIHR), Rare Diseases Foundation, and the Marfan Foundation.


Neuropeptide Modulation Of The Large Conductance Potassium (Bk) Channel In The Auditory System: Therapeutic Implications For Age-Related Hearing Loss, Ellliott James Brecht Apr 2017

Neuropeptide Modulation Of The Large Conductance Potassium (Bk) Channel In The Auditory System: Therapeutic Implications For Age-Related Hearing Loss, Ellliott James Brecht

USF Tampa Graduate Theses and Dissertations

The auditory temporal processing deficits associated with age-dependent hearing decline have been increasingly attributed to issues beyond peripheral hearing loss. Age-related hearing loss (ARHL), also known as presbycusis, is linked with changes in the expression of both excitatory and inhibitory neurotransmitters in the central auditory system. There are also age-related changes in the expression and function of the ion channels which mediate action potential firing. The slow, Ca2+ activated, K+ channels of the BK-type are essential in controlling both neurotransmitter release and neural communication via alteration of action potential durations, firing frequency, and neural adaptation. There are many …


Week Of April 3, 2017, New York Medical College Apr 2017

El Acceso Y Uso De Las Pruebas Genéticas Para La Detección Precoz De Enfermedades Congénitas En Mujeres Embarazadas En La Ciudad Autónoma De Buenos Aires En El Año 2017 \ The Access And Use Of Genetic Tests For Early Detection Of Congenital Diseases In Pregnant Women In The Autonomous City Of Buenos Aires In The Year 2017, Anna Anna Bauer Apr 2017

El Acceso Y Uso De Las Pruebas Genéticas Para La Detección Precoz De Enfermedades Congénitas En Mujeres Embarazadas En La Ciudad Autónoma De Buenos Aires En El Año 2017 \ The Access And Use Of Genetic Tests For Early Detection Of Congenital Diseases In Pregnant Women In The Autonomous City Of Buenos Aires In The Year 2017, Anna Anna Bauer

Independent Study Project (ISP) Collection

Las pruebas genéticas son una herramienta útil para la prevención y el diagnóstico de defectos congénitos en las mujeres embarazadas. Esta investigación explora el acceso y uso de estas pruebas para mujeres que residen en la Ciudad Autónoma de Buenos Aires en el año 2017. Se trata de un tema amerita una investigación porque la tecnología para hacer estudios genéticos todavía es algo novedosa. Además, a través de las pruebas genéticas es posible detectar si el feto tiene un alto riesgo para desarrollar un defecto congénito, el cual es una de las causas más importantes de la mortalidad prenatal y …


Sleep-Based Memory Processing Facilitates Grammatical Generalization: Evidence From Targeted Memory Reactivation., Laura J Batterink, Ken A Paller Apr 2017

Sleep-Based Memory Processing Facilitates Grammatical Generalization: Evidence From Targeted Memory Reactivation., Laura J Batterink, Ken A Paller

Brain and Mind Institute Researchers' Publications

Generalization-the ability to abstract regularities from specific examples and apply them to novel instances-is an essential component of language acquisition. Generalization not only depends on exposure to input during wake, but may also improve offline during sleep. Here we examined whether targeted memory reactivation during sleep can influence grammatical generalization. Participants gradually acquired the grammatical rules of an artificial language through an interactive learning procedure. Then, phrases from the language (experimental group) or stimuli from an unrelated task (control group) were covertly presented during an afternoon nap. Compared to control participants, participants re-exposed to the language during sleep showed larger …


Stem Cell Derived Osteoprogenitors And Their Role In Bone Repair Using Morphogenic Activators, George Washington Brownridge Iii, Sylvanna Islas, Angelina Miller, Warren Hoeffler Apr 2017

Stem Cell Derived Osteoprogenitors And Their Role In Bone Repair Using Morphogenic Activators, George Washington Brownridge Iii, Sylvanna Islas, Angelina Miller, Warren Hoeffler

Student Research Posters

Bone constantly cycles through a dynamic process of breakdown and remodeling. Osteoblasts are the specialized mesenchymal stem cells that have a major role in bone formation and the remodeling process whereas their counterpart osteoclasts, handle bone resorption. Embryonic stem cells can be partially differentiated into Progenitor cells, and we worked with #18, a candidate for being an osteoprogenitor that has the potential to respond to morphogenic activators. In the case of bone remodeling, TGF-β 2, BMP-2 and an abundance of CA++ have been shown to be potential activators of differentiation into osteoblasts. Eight different trials were conducted with the cells …


Regulation Of System Xc-By The Neuropeptide Pacap: Implications For Glutamate Transmission In Drug Addiction, Linghai Kong Apr 2017

Regulation Of System Xc-By The Neuropeptide Pacap: Implications For Glutamate Transmission In Drug Addiction, Linghai Kong

Dissertations (1934 -)

Drug addiction is a chronic brain disorder characterized by heightened relapse susceptibility. Drug-induced aberrant glutamate signaling in corticostriatal circuitry contributes to behaviors in virtually every preclinical model of drug seeking and correlates with drug craving in human. Here, we propose that glutamate signaling is a product of integrated activity between neurons and astrocytes, such that disruptions within astrocytes can stem from abnormal neuronal signaling (e.g., altered corticostriatal firing) and be the source of additional disruptions in other neuronal circuits. The astrocytic mechanism studied in these experiments is system xc- (Sxc) since drug-induced changes to this non-vesicular glutamate release mechanism contribute …


Rapid And Rigorous Il-17a Production By A Distinct Subpopulation Of Effector Memory T Lymphocytes Constitutes A Novel Mechanism Of Toxic Shock Syndrome Immunopathology, Peter A. Szabo, Ankur Goswami, Delfina M. Mazzuca, Kyoungok Kim, David B. O'Gorman, David A. Hess, Ian D. Welch, Howard A. Young, Bhagirath Singh, John K. Mccormick, S. M.Mansour Haeryfar Apr 2017

Rapid And Rigorous Il-17a Production By A Distinct Subpopulation Of Effector Memory T Lymphocytes Constitutes A Novel Mechanism Of Toxic Shock Syndrome Immunopathology, Peter A. Szabo, Ankur Goswami, Delfina M. Mazzuca, Kyoungok Kim, David B. O'Gorman, David A. Hess, Ian D. Welch, Howard A. Young, Bhagirath Singh, John K. Mccormick, S. M.Mansour Haeryfar

United States Public Health Resources

Toxic shock syndrome (TSS) is caused by staphylococcal and streptococcal superantigens (SAgs) that provoke a swift hyperinflammatory response typified by a cytokine storm. The precipitous decline in the host's clinical status and the lack of targeted therapies for TSS emphasize the need to identify key players of the storm's initial wave. Using a humanized mouse model of TSS and human cells, we herein demonstrate that SAgs elicit in vitro and in vivo IL-17A responses within hours. SAg-triggered human IL-17A production was characterized by remarkably high mRNA stability for this cytokine. A distinct subpopulation of CD4+ effector memory T (TEM) cells …


Csf Protein Changes Associated With Hippocampal Sclerosis Risk Gene Variants Highlight Impact Of Grn/Pgrn, David W. Fardo, Yuriko Katsumata, John S. K. Kauwe, Yuetiva Deming, Oscar Harari, Carlos Cruchaga, Alzheimer’S Disease Neuroimaging Initiative, Peter T. Nelson Apr 2017

Csf Protein Changes Associated With Hippocampal Sclerosis Risk Gene Variants Highlight Impact Of Grn/Pgrn, David W. Fardo, Yuriko Katsumata, John S. K. Kauwe, Yuetiva Deming, Oscar Harari, Carlos Cruchaga, Alzheimer’S Disease Neuroimaging Initiative, Peter T. Nelson

Sanders-Brown Center on Aging Faculty Publications

Objective—Hippocampal sclerosis of aging (HS-Aging) is a common cause of dementia in older adults. We tested the variability in cerebrospinal fluid (CSF) proteins associated with previously identified HS-Aging risk single nucleotide polymorphisms (SNPs).

Methods—Alzheimer’s Disease Neuroimaging Initiative cohort (ADNI; n=237) data, combining both multiplexed proteomics CSF and genotype data, were used to assess the association between CSF analytes and risk SNPs in four genes (SNPs): GRN (rs5848), TMEM106B (rs1990622), ABCC9 (rs704180), and KCNMB2 (rs9637454). For controls, non-HS-Aging SNPs in APOE (rs429358/rs7412) and MAPT (rs8070723) were also analyzed against Aβ1-42 and total tau CSF analytes.

Results—The GRN risk …


Outcomes After Diagnosis Of Mild Cognitive Impairment In A Large Autopsy Series, Erin L. Abner, Richard J. Kryscio, Frederick A. Schmitt, David W. Fardo, Daniela C. Moga, Eseosa T. Ighodaro, Gregory A. Jicha, Lei Yu, Hiroko H. Dodge, Chengjie Xiong, Randall L. Woltjer, Julie A. Schneider, Nigel J. Cairns, David A. Bennett, Peter T. Nelson Apr 2017

Outcomes After Diagnosis Of Mild Cognitive Impairment In A Large Autopsy Series, Erin L. Abner, Richard J. Kryscio, Frederick A. Schmitt, David W. Fardo, Daniela C. Moga, Eseosa T. Ighodaro, Gregory A. Jicha, Lei Yu, Hiroko H. Dodge, Chengjie Xiong, Randall L. Woltjer, Julie A. Schneider, Nigel J. Cairns, David A. Bennett, Peter T. Nelson

Epidemiology and Environmental Health Faculty Publications

OBJECTIVE: To determine clinical and neuropathological outcomes following a clinical diagnosis of mild cognitive impairment (MCI).

METHODS: Data were drawn from a large autopsy series (N = 1,337) of individuals followed longitudinally from normal or MCI status to death, derived from 4 Alzheimer Disease (AD) Centers in the United States.

RESULTS: Mean follow‐up was 7.9 years. Of the 874 individuals ever diagnosed with MCI, final clinical diagnoses were varied: 39.2% died with an MCI diagnosis, 46.8% with a dementia diagnosis, and 13.9% with a diagnosis of intact cognition. The latter group had pathological features resembling those with a final clinical …


Overcoming Hurdles To Development Of A Vaccine Against Pneumocystis Jirovecii, Beth A. Garvy Apr 2017

Overcoming Hurdles To Development Of A Vaccine Against Pneumocystis Jirovecii, Beth A. Garvy

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Development of Pneumocystis pneumonia (PCP) is a common problem among immunosuppressed individuals. There are windows of opportunity in which vaccination would be beneficial, but to date, no vaccines have made it to clinical trials. Significant hurdles to vaccine development include host range specificity, making it difficult to translate from animal models to humans. Discovery of cross-reactive epitopes is critical to moving vaccine candidates from preclinical animal studies to clinical trials.


The Immediate Cardiovascular Response To Joint Mobilization Of The Neck - A Randomized, Placebo-Controlled Trial In Pain-Free Adults, Emmanuel Yung, Cheongeun Oh, Michael Wong, Jason K. Grimes, Erica M. Barton, Muhammad I. Ali, David A. Cameron Apr 2017

The Immediate Cardiovascular Response To Joint Mobilization Of The Neck - A Randomized, Placebo-Controlled Trial In Pain-Free Adults, Emmanuel Yung, Cheongeun Oh, Michael Wong, Jason K. Grimes, Erica M. Barton, Muhammad I. Ali, David A. Cameron

All PTHMS Faculty Publications

Background: Some normotensive patients can have a spike in resting systolic blood pressure (SBP) in response to acute neck pain. Applying the typical dosage of mobilization may potentially result in a sympatho-excitatory response, further increasing resting SBP. Therefore, there is a need to explore other dosage regimens that could result in a decrease in SBP.

Objectives: To compare the blood pressure (BP) and heart rate (HR) response of pain-free, normotensive adults when receiving unilateral posterior-to-anterior mobilization (PA) applied to the neck versus its corresponding placebo (PA-P).

Study design: Double-Blind, Randomized Clinical Trial.


Table Of Contents Apr 2017

Table Of Contents

Journal of the South Carolina Academy of Science

No abstract provided.