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Immune System Diseases Commons

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Articles 631 - 660 of 1261

Full-Text Articles in Immune System Diseases

Multiple Myeloma Baseline Immunoglobulin G Level And Pneumococcal Vaccination Antibody Response, Michael A. Thompson, Martin K. Oaks, Maharaj Singh, Karen M. Michel, Michael P. Mullane, Husam S. Tarawneh, Angi Kraut, Kayla J. Hamm Aug 2017

Multiple Myeloma Baseline Immunoglobulin G Level And Pneumococcal Vaccination Antibody Response, Michael A. Thompson, Martin K. Oaks, Maharaj Singh, Karen M. Michel, Michael P. Mullane, Husam S. Tarawneh, Angi Kraut, Kayla J. Hamm

Journal of Patient-Centered Research and Reviews

Infections are a major cause of morbidity and mortality in multiple myeloma (MM), a cancer of the immune system. Vaccination clinical efficacy endpoints have not been demonstrated, and there are limited data on surrogate markers of efficacy. This pilot study evaluated sequential immunologic markers after standard pneumococcal vaccination (PV) in patients with MM and non-MM controls. Vaccination was standard for PV (PCV13 or PPV23), with laboratory testing at baseline and at 2, 4, 12 and 24 weeks after vaccination. Immunoglobulin G (IgG) antibodies to pneumococcal antigens were detected by ELISA. Prevaccination total IgG levels and IgG subclass levels were also …


Extrafollicular Activities: Perspectives On Hiv Infection, Germinal Centerindependent Maturation Pathways, And Kshv-Mediated Lymphoproliferation, Jennifer Totonchy Aug 2017

Extrafollicular Activities: Perspectives On Hiv Infection, Germinal Centerindependent Maturation Pathways, And Kshv-Mediated Lymphoproliferation, Jennifer Totonchy

Pharmacy Faculty Articles and Research

Early events in the pathogenesis of KSHV-associated lymphoproliferations in the context of HIV disease remain poorly understood. Recent research indicates that latent HIV infection causes persistent immune dysfunction in B cell follicles. Simultaneously, lack of T cell immune surveillance in the lymph nodes dysregulates the biology of EBV. In sum, these defects bias B lymphocyte maturation away from traditional T cell-dependent germinal center-mediated pathways and towards extrafollicular pathways. Recent advances in B lymphocyte immunology suggest that extrafollicular maturation pathways for antibody secreting cells are more flexible and robust than previously believed. These responses are now understood to be both durable …


Risk For Cardiovascular Disease In Blacks With Hiv/Aids In America: A Systematic Review And Meta-Analysis, Calvin Odhiambo, Jessica Davis, Bernard Omolo Jul 2017

Risk For Cardiovascular Disease In Blacks With Hiv/Aids In America: A Systematic Review And Meta-Analysis, Calvin Odhiambo, Jessica Davis, Bernard Omolo

Journal of Health Disparities Research and Practice

Cardiovascular disease (CVD) related to HIV infection is becoming a major public health concern in the United Stated. Epidemiologic studies show that prolonged use of Highly Active Antiretroviral Therapy, HIV/AIDS itself, and a combination of traditional vascular risk factors increase the risk for CVD among people with HIV/AIDS. However, little is known about any racial disparities in the risk for CVD in the HIV/AIDS population. We conducted a systematic review and meta-analysis of literature on HIV/AIDS and CVD (June 1, 2010-July 31, 2014) through MEDLINE to examine whether and how HIV-positive African Americans are disproportionately affected by CVD compared to …


Immune Checkpoint Inhibition And The Prevalence Of Autoimmune Disorders Among Patients With Lung And Renal Cancer, Sherif M. El-Refai Jun 2017

Immune Checkpoint Inhibition And The Prevalence Of Autoimmune Disorders Among Patients With Lung And Renal Cancer, Sherif M. El-Refai

Pharmaceutical Sciences Faculty Publications

PURPOSE: Immune checkpoint inhibition reactivates the immune response against cancer cells in multiple tissue types and has been shown to induce durable responses. However, for patients with autoimmune disorders, their conditions can worsen with this reactivation. We sought to identify, among patients with lung and renal cancer, how many harbor a comorbid autoimmune condition and may be at risk of worsening their condition while on immune checkpoint inhibitors such as nivolumab and pembrolizumab.

METHODS: An administrative health care claims database, Truven MarketScan, was used to identify patients diagnosed with lung and renal cancer from 2010 to 2013. We assessed patients …


The Severity And Lack Of Awareness Of Dermatomyositis, Alexander Lorenzo Perez Herrera May 2017

The Severity And Lack Of Awareness Of Dermatomyositis, Alexander Lorenzo Perez Herrera

Senior Theses

Dermatomyositis is a rare autoimmune disease that affects a very small percentage of the population, close to 10 cases per million, according to the National Organization of Rare Disorders (NORD). The amount of men that are diagnosed with this disease are even smaller. However, hardly anyone knows what Dermatomyositis is, let alone what its side effects are. The purpose of this research paper is to exploit the severity of Dermatomyositis for those who are unaware of its existence, characteristics and significance within the health community. In doing so, I hope to create awareness throughout society by also telling my father’s …


Lymphoid Hematopoiesis And The Role Of B-Cells In Transgenic Mouse Model Of Sickle Cell Disease, Christina Cotte May 2017

Lymphoid Hematopoiesis And The Role Of B-Cells In Transgenic Mouse Model Of Sickle Cell Disease, Christina Cotte

University Scholar Projects

Sickle cell disease (SCD) has been shown to be associated with decreased baseline immunity and thus increased susceptibility to infection. I sought to discern possible causes of this by looking into the correlations between SCD and hematopoiesis, the immune system and the neuroendocrine system, and ultimately by conducting experiments surrounding the impaired immune system of SCD. These experiments focused on the potential causes and effects of the diminution of B-1a cells in the SCD spleen. Adoptive transfers, infections with Streptococcus pneumoniae, and histologic imaging were conducted to establish if the diminution of the B-1a cells in the SCD spleen …


A Comparative Analysis Of The West African Hemorrhagic Fevers Caused By The Lassa And Ebola Viruses, Emiene E. Amali-Adekwu Apr 2017

A Comparative Analysis Of The West African Hemorrhagic Fevers Caused By The Lassa And Ebola Viruses, Emiene E. Amali-Adekwu

Selected Honors Theses

Lassa fever (LF) and Ebola Hemorrhagic Fever (EHF) are viral diseases endemic to West Africa.The etiological agent of Lassa fever is an enveloped virus from the Arenaviridae family and was first discovered in 1969 when two missionary nurses died of a mysterious illness in the town of Lassa in Borno state, Nigeria.1 This virus is animal-borne (zoonotic) and is carried by the animal vector Mastomys natalensis (multimammate rat). The Ebola virus is also zoonotic originating from fruit bats belonging to the Pteropodidae family.2 The first reported case of Ebola Virus Disease (EVD) was a principal who was believed to have …


A Review Of Ankylosing Spondylitis, Hannah L. Owen Apr 2017

A Review Of Ankylosing Spondylitis, Hannah L. Owen

Senior Honors Theses

Ankylosing spondylitis (AS) is a systemic autoimmune disorder that induces ankylosis of the spine (fusion of the vertebrae at their various joints) and inflammatory arthritis of peripheral joints among other symptoms. Overexpression of cytokines, the presence of genetic mutations not exclusive to the human leucocyte antigen (HLA)-B27 region, and environmental factors all have large roles in the progressive development of AS. Although a definitive pathology continues to be sought after, researchers believe the adaptive immune system in AS patients attacks fibrocartilaginous entheses (supportive connective tissue between bone and attached structures like tendon, ligament, and fascia).

AS markedly reduces proper systemic …


Beyond Skin Deep: The Traumatic Effects Of Dermatomyositis, Alexander Lorenzo Perez Herrera Apr 2017

Beyond Skin Deep: The Traumatic Effects Of Dermatomyositis, Alexander Lorenzo Perez Herrera

Scholarly and Creative Works Conference (2015 - 2021)

Dermatomyositis is a rare autoimmune disease that affects a very small percentage of the population, close to 10 cases per million, according to the National Organization of Rare Disorders (NORD). The amount of men that are diagnosed with this disease are even smaller. However, hardly anyone knows what Dermatomyositis is, let alone what its side effects are. The purpose of this research paper is to exploit the severity of Dermatomyositis for those who are unaware of its existence, characteristics and significance within the health community. In doing so, I hope to create awareness throughout society by also telling my father’s …


Novel Genetic Variants Associated With Child Refractory Esophageal Stricture With Food Allergy By Exome Sequencing., Min Yang, Min Xiong, Huan Chen, Lanlan Geng, Peiyu Chen, Jing Xie, Shui Qing Ye, Ding-You Li, Sitang Gong Apr 2017

Novel Genetic Variants Associated With Child Refractory Esophageal Stricture With Food Allergy By Exome Sequencing., Min Yang, Min Xiong, Huan Chen, Lanlan Geng, Peiyu Chen, Jing Xie, Shui Qing Ye, Ding-You Li, Sitang Gong

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Refractory esophageal stricture (RES) may be attributed to food allergy. Its etiology and pathogenesis are not fully understood. Identification of novel genetic variants associated with this disease by exome sequencing (exome-seq) may provide new mechanistic insights and new therapeutic targets.

METHODS: To identify new and novel disease-associating variants, whole-exome sequencing was performed on an Illumina NGS platform in three children with RES as well as food allergy.

RESULTS: A total of 91,024 variants were identified. By filtering out 'normal variants' against those of the 1000 Genomes Project, we identified 12,741 remaining variants which are potentially associated with RES plus …


A Novel Multi-Network Approach Reveals Tissue-Specific Cellular Modulators Of Fibrosis In Systemic Sclerosis, Jaclyn N. Taroni, Casey S. Greene, Viktor Martyanov, Tammara A. Wood Mar 2017

A Novel Multi-Network Approach Reveals Tissue-Specific Cellular Modulators Of Fibrosis In Systemic Sclerosis, Jaclyn N. Taroni, Casey S. Greene, Viktor Martyanov, Tammara A. Wood

Dartmouth Scholarship

Systemic sclerosis (SSc) is a multi-organ autoimmune disease characterized by skin fibrosis. Internal organ involvement is heterogeneous. It is unknown whether disease mechanisms are common across all involved affected tissues or if each manifestation has a distinct underlying pathology.We used consensus clustering to compare gene expression profiles of biopsies from four SSc-affected tissues (skin, lung, esophagus, and peripheral blood) from patients with SSc, and the related conditions pulmonary fibrosis (PF) and pulmonary arterial hypertension, and derived a consensus disease-associate signature across all tissues. We used this signature to query tissue-specific functional genomic networks. We performed novel network analyses to contrast …


Pulmonary Surfactant Fortified With Cath-2 As A Novel Therapy For Bacterial Pneumonia, Brandon J. Baer Mar 2017

Pulmonary Surfactant Fortified With Cath-2 As A Novel Therapy For Bacterial Pneumonia, Brandon J. Baer

Western Research Forum

Background: Bacterial pneumonia is a leading cause of death worldwide, with high mortality rates persisting even after antibiotic treatment. Current treatments for pneumonia involve administration of antibiotics, however after the bacteria are killed they release toxic substances that induce inflammation and lung dysfunction. Host defense peptides represent a potential solution to this problem through their ability to down regulate inflammation. However, effective delivery to the lung is difficult because of the complex branching structure of the airways. My study addresses this delivery problem by using exogenous surfactant, a pulmonary delivery vehicle capable of improving spreading of these peptides throughout the …


Improving Antiretroviral Therapy Adherence In Resource-Limited Settings At Scale: A Discussion Of Interventions And Recommendations, Jessica E. Haberer, Lora Sabin, K. Rivet Amico, Catherine Orrell, Omar Galarraga, Alexander C. Tsai, Rachel C. Vreeman, Ira Wilson, Nadia A. Sam-Agudu, Terrence F. Blaschke, Bernard Vrijens, Claude Mellins, Robert H. Remien, Sheri D. Weiser, Elizabeth Lolwenthal, Michael J. Stirratt, Papa Salif Sow, Bruce Thomas, Nathan Ford, Edward Mills, Richard Lester, Jean B. Nachega, Bosco M. Bwana, Fred Ssewamala, Lawrence Mbuagbaw, Paula Munderi, Elvin H. Geng, David Bangsberg Mar 2017

Improving Antiretroviral Therapy Adherence In Resource-Limited Settings At Scale: A Discussion Of Interventions And Recommendations, Jessica E. Haberer, Lora Sabin, K. Rivet Amico, Catherine Orrell, Omar Galarraga, Alexander C. Tsai, Rachel C. Vreeman, Ira Wilson, Nadia A. Sam-Agudu, Terrence F. Blaschke, Bernard Vrijens, Claude Mellins, Robert H. Remien, Sheri D. Weiser, Elizabeth Lolwenthal, Michael J. Stirratt, Papa Salif Sow, Bruce Thomas, Nathan Ford, Edward Mills, Richard Lester, Jean B. Nachega, Bosco M. Bwana, Fred Ssewamala, Lawrence Mbuagbaw, Paula Munderi, Elvin H. Geng, David Bangsberg

OHSU-PSU School of Public Health Faculty Publications and Presentations

INTRODUCTION:

Successful population-level antiretroviral therapy (ART) adherence will be necessary to realize both the clinical and prevention benefits of antiretroviral scale-up and, ultimately, the end of AIDS. Although many people living with HIV are adhering well, others struggle and most are likely to experience challenges in adherence that may threaten virologic suppression at some point during lifelong therapy. Despite the importance of ART adherence, supportive interventions have generally not been implemented at scale. The objective of this review is to summarize the recommendations of clinical, research, and public health experts for scalable ART adherence interventions in resource-limited settings.

METHODS:

In …


Vaccine Coverage And Adherence To Epi Schedules In Eight Resource Poor Settings In The Mal-Ed Cohort Study, Christel Hoest, Jessica C. Seidman, Gwenyth Lee, James A. Platts-Mills, Syed Asad Ali, Maribel Paredes Olortegui, Pascal Bessong, Ram Chandyo, Sudhir Babji, Venkata Raghava Mohan Jan 2017

Vaccine Coverage And Adherence To Epi Schedules In Eight Resource Poor Settings In The Mal-Ed Cohort Study, Christel Hoest, Jessica C. Seidman, Gwenyth Lee, James A. Platts-Mills, Syed Asad Ali, Maribel Paredes Olortegui, Pascal Bessong, Ram Chandyo, Sudhir Babji, Venkata Raghava Mohan

Department of Paediatrics and Child Health

Background: Launched in 1974, the Expanded Program on Immunization (EPI) is estimated to prevent two-three million deaths annually from polio, diphtheria, tuberculosis, pertussis, measles, and tetanus. Additional lives could be saved through better understanding what influences adherence to the EPI schedule in specific settings.
Methods: The Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) study followed cohorts in eight sites in South Asia, Africa, and South America and monitored vaccine receipt over the first two years of life for the children enrolled in the study. Vaccination histories were obtained …


Epigenetic Silencing Of Socs3 Expression Contributes To Fibrosis In Crohn’S Disease, Emily T. Marshall, Chao Li, John K. Kuemmerle Jan 2017

Epigenetic Silencing Of Socs3 Expression Contributes To Fibrosis In Crohn’S Disease, Emily T. Marshall, Chao Li, John K. Kuemmerle

MD Student Summer Research Fellowship Program Posters

Identified risk polymorphisms affecting the Jak-STAT3 pathway in patients with Crohn’s disease could affect TGF-β1 and collagen I expression and in the pathway’s negative regulator, SOCS3. Genetic factors, however, account for only ~25% of disease. Epigenetic events also shape gene expression. Recent experiments showed that autocrine IL-6 production in mesenchymal cells, subepithelial myofibroblasts (SEMF) and muscle cells, of patients with fibrostenotic Crohn’s disease causes sustained Jak-STAT3 activity, excess TGF-β1 and Collagen I production and fibrosis. SOCS3 paradoxically decreased in these cells. We now identify epigenetic mechanisms that silence SOCS3 expression in SEMF of patients with fibrostenotic Crohn’s disease. In a …


Trinidad & Tobago : Hiv Epidemic, Madison Caldwell Jan 2017

Trinidad & Tobago : Hiv Epidemic, Madison Caldwell

Global Public Health

Trinidad and Tobago are twin islands located in the Caribbean off the coast of Venezuela. In the recent years since about 1990, citizens of this country have been greatly affected by the HIV epidemic. HIV stands for human immunodeficiency virus and is spread through infected seman, blood, or vaginal fluids usually through sexual intercourse. As this virus continues to progress in the body, it will eventually turn into AIDS, which stands for acquired immunodeficiency syndrome. Once HIV progresses to AIDS, the outcome is ultimately fatal, hence why there is a dire need to promote awareness and methods of intervention to …


Namibia : Hiv As A National Issue, Elisabeth Vlasak Jan 2017

Namibia : Hiv As A National Issue, Elisabeth Vlasak

Global Public Health

Namibia is located on the southwestern coast of Africa, bordering Angola, Botswana, Zambia, South Africa, and the Atlantic Ocean. Namibia has a population of 2,265,000, as of 2016. Namibia has many challenges, including food insecurity and malnutrition, access to health services, unequal distribution of wealth, but HIV/AIDS is one of the country’s leading challenges. It is estimated that the overall adult infection rate of HIV/AIDS is 15.4% and it is the leading cause of death in Namibia. Adults ages 18-24 are the most at-risk for the disease. Some of the major risk factors are declining condom use, misinformation, social stigma, …


Transition Into Adult Care: Factors Associated With Level Of Preparedness Among Adolescents Living With Hiv In Cambodia, Siyan Yi, Chanrith Ngin, Khuondyla Pal, Vohith Khol, Sovannary Tuot, Sokunmealiny Sau, Penhsun Ly Jan 2017

Transition Into Adult Care: Factors Associated With Level Of Preparedness Among Adolescents Living With Hiv In Cambodia, Siyan Yi, Chanrith Ngin, Khuondyla Pal, Vohith Khol, Sovannary Tuot, Sokunmealiny Sau, Penhsun Ly


Background: Preparing adolescents for transition into adult care and supporting their acquisition of self-health care management skills is a critical determinant of their post-transition HIV care outcomes. However, there is a scarcity of research on effective transition strategies. This study explores factors associated with adolescent preparedness for transition into adult care in Cambodia.

Methods: In August 2016, a cross-sectional study was conducted among 223 adolescents living with HIV aged 15–17, randomly selected from 11 antiretroviral therapy clinics, utilizing a structured questionnaire. The level of preparedness was determined using a pre-existing scale, and adolescents were categorized as having a …


Using Risk-Tracing Snowball Approach To Increase Hiv Case Detection Among High-Risk Populations In Cambodia: An Intervention Study, Srean Chhim, John Macom, Chettana Pav, Nirada Nim, Phearun Yun, Sopheap Seng, Siyan Yi Jan 2017

Using Risk-Tracing Snowball Approach To Increase Hiv Case Detection Among High-Risk Populations In Cambodia: An Intervention Study, Srean Chhim, John Macom, Chettana Pav, Nirada Nim, Phearun Yun, Sopheap Seng, Siyan Yi


Background: Early HIV diagnosis and initiation onto antiretroviral therapy may prevent ongoing spread of HIV. Risk Tracing Snowball Approach (RTSA) has been shown to be effective in detecting new HIV cases in other settings. The main objective of this study is to evaluate the effectiveness of RTSA in increasing the rate of newly identified HIV cases among high-risk populations. Our second objective was to evaluate the effectiveness of RTSA, as compared to the walk-in group, in increasing the number of HIV tests and early case detection.

Methods: This study was conducted from April 1 to September 30, 2016 at two …


High Prevalence Of Non-Communicable Diseases And Associated Risk Factors Amongst Adults Living With Hiv In Cambodia, Pheak Chhoun, Sovannary Tuot, Anthony D. Harries, Nang Thu Thu Kyaw, Khuondyla Pal, Carinne M. Brody, Siyan Yi Jan 2017

High Prevalence Of Non-Communicable Diseases And Associated Risk Factors Amongst Adults Living With Hiv In Cambodia, Pheak Chhoun, Sovannary Tuot, Anthony D. Harries, Nang Thu Thu Kyaw, Khuondyla Pal, Carinne M. Brody, Siyan Yi


BACKGROUND:

With rapid expansion of antiretroviral therapy for HIV, there are rising life expectancies among people living with HIV. As a result, co-morbidity from non-communicable diseases in those living and aging with HIV is increasingly being reported. Published data on this issue have been limited in Cambodia. The aim of this study was to determine the prevalence of diabetes mellitus, hypertension and hypercholesterolemia and associated risk factors in adults living with HIV in Cambodia.

METHODS:

This cross-sectional study was conducted in five provinces of Cambodia from May-June 2015. Information was obtained on socio-demographic and clinical characteristics through face-to-face interviews using …


Hiv Prevalence, Risky Behaviors, And Discrimination Experiences Among Transgender Women In Cambodia: Descriptive Findings From A National Integrated Biological And Behavioral Survey, Siyan Yi, Chanrith Ngin, Sovannary Tuot, Pheak Chhoun, Srean Chhim, Khuondyla Pal, Gitau Mburu Jan 2017

Hiv Prevalence, Risky Behaviors, And Discrimination Experiences Among Transgender Women In Cambodia: Descriptive Findings From A National Integrated Biological And Behavioral Survey, Siyan Yi, Chanrith Ngin, Sovannary Tuot, Pheak Chhoun, Srean Chhim, Khuondyla Pal, Gitau Mburu


Background: Transgender people are disproportionately affected by HIV. Despite their high vulnerability to HIV, lack of adequate epidemiological and surveillance data related to this population in many countries prevents provision of appropriate services. This paper summarizes descriptive findings from a national integrated biological and behavioral survey and discusses policy implications of the findings on HIV prevention among transgender women in Cambodia.

Methods: This cross-sectional study was conducted between December 2015 and February 2016. Participants were recruited from 20 sites in the capital city and 12 provinces of Cambodia using Respondent Driven Sampling (RDS) method. Behavioral data were collected …


Non-Communicable Diseases And Related Risk Behaviors Among Men And Women Living With Hiv In Cambodia: Findings From A Cross-Sectional Study, Pheak Chhoun, Chanrith Ngin, Martin Steel, Jennifer Dionisio, Hattie Pearson, Carinne M. Brody, Siyan Yi Jan 2017

Non-Communicable Diseases And Related Risk Behaviors Among Men And Women Living With Hiv In Cambodia: Findings From A Cross-Sectional Study, Pheak Chhoun, Chanrith Ngin, Martin Steel, Jennifer Dionisio, Hattie Pearson, Carinne M. Brody, Siyan Yi


Background: There is a growing concern for an increasing burden of non-communicable diseases (NCDs) in people living with HIV. This concern is evident especially in developing countries where dietary and lifestyle risk factors associated with NCDs are becoming more prominent. This study explored the prevalence of diabetes mellitus, hypertension, and hyperlipidemia and related risk factors in men and women living with HIV in Cambodia.

Methods: This cross-sectional study was conducted among 510 adult people living with HIV randomly selected from one city and four provinces in Cambodia. A structured questionnaire was used to collect data on socio-demographic characteristics, …


Awareness And Willingness To Use Hiv Pre-Exposure Prophylaxis Among Men Who Have Sex With Men In Low- And Middle-Income Countries: A Systematic Review And Meta-Analysis, Siyan Yi, Sovannary Tuot, Grace W. Mwai, Chanrith Ngin, Kolab Chhim, Khuondyla Pal, Gitau Mburu Jan 2017

Awareness And Willingness To Use Hiv Pre-Exposure Prophylaxis Among Men Who Have Sex With Men In Low- And Middle-Income Countries: A Systematic Review And Meta-Analysis, Siyan Yi, Sovannary Tuot, Grace W. Mwai, Chanrith Ngin, Kolab Chhim, Khuondyla Pal, Gitau Mburu


Introduction: To facilitate provision of pre-exposure prophylaxis (PrEP) in low- and middle-income countries (LMIC), a better understanding of potential demand and user preferences is required. This review assessed awareness and willingness to use oral PrEP among men who have sex with men (MSM) in LMIC.

Methods: Electronic literature search of Cochrane library, Embase, PubMed, PsychINFO, CINHAL, Web of Science, and Google Scholar was conducted between July and September 2016. Reference lists of relevant studies were searched, and three authors contacted for additional data. Non-peer reviewed publications were excluded. Studies were screened for inclusion, and relevant data abstracted, assessed …


Enhanced Potency Of Bivalent Small Molecule Gp41 Inhibitors, Vladimir Sofiyev, Hardeep Kaur, Beth A. Snyder, Priscilla A. Hogan, Roger G. Ptak, Peter Hwang, Miriam Gochin Jan 2017

Enhanced Potency Of Bivalent Small Molecule Gp41 Inhibitors, Vladimir Sofiyev, Hardeep Kaur, Beth A. Snyder, Priscilla A. Hogan, Roger G. Ptak, Peter Hwang, Miriam Gochin

Faculty Publications & Research of the TUC College of Osteopathic Medicine

Low molecular weight peptidomimetic inhibitors with hydrophobic pocket binding properties and moderate fusion inhibitory activity against HIV-1 gp41-mediated cell fusion were elaborated by increasing the available surface area for interacting with the heptad repeat-1 (HR1) coiled coil on gp41. Two types of modifications were tested: 1) increasing the overall hydrophobicity of the molecules with an extension that could interact in the HR1 groove, and 2) forming symmetrical dimers with two peptidomimetic motifs that could potentially interact simultaneously in two hydrophobic pockets on the HR1 trimer. The latter approach was more successful, yielding 40–60 times improved potency against HIV fusion over …


Analysis Of Humoral Immune Responses In Horses With Equine Protozoal Myeloencephalitis, Catherine-Jane Angwin Jan 2017

Analysis Of Humoral Immune Responses In Horses With Equine Protozoal Myeloencephalitis, Catherine-Jane Angwin

Theses and Dissertations--Veterinary Science

Equine protozoal myeloencephalitis (EPM), caused by the protozoan parasite Sarcocystis neurona, is one of the most important neurological diseases of horses in the Americas. While seroprevalence of S. neurona in horses is high, clinical manifestation of EPM occurs in less than 1% of infected horses. Factors governing the occurrence and severity of EPM are largely unknown, although horse immunity might play an important role in clinical outcome. We hypothesize that EPM occurs due to an aberrant immune response, which will be discernable in the equine IgG subisotypes a, b, and (T) that recognize S. neurona in infected diseased horses versus …


Biomarkers Of Sepsis: A Retrospective Approach, Jose M. Roberts Jan 2017

Biomarkers Of Sepsis: A Retrospective Approach, Jose M. Roberts

Williams Honors College, Honors Research Projects

Background: Biomarkers are taking the spotlight in becoming the norm for early diagnoses. Sepsis is an inflammatory disease that increases metabolic rate in children. The first biomarker is hyponatremia. Hyponatremia is a frequent electrolyte imbalance in clinical practice, often observed in children with inflammatory disease and infection. Presence of hyponatremia is associated with electrical signaling imbalances, inflammation and renal dysfunction. The clinical value of hyponatremia in pediatric patients is unknown. The C-reactive protein is a second biomarker. Its presence signifies that necrotic cells and inflammation are present.

Objectives: To evaluate the use of biomarkers in children seen in the Emergency …


Type 2 Immune Responses In The Context Of Helminth Infection, Asthma, Dendritic Cells, And Myeloid Derived Suppressor Cell Function, Sheela Ruby Damle Jan 2017

Type 2 Immune Responses In The Context Of Helminth Infection, Asthma, Dendritic Cells, And Myeloid Derived Suppressor Cell Function, Sheela Ruby Damle

Theses and Dissertations

Type 2 (TH2) immune responses evolved to respond to helminth parasite infections by the production of TH2 cytokines, which stimulate anti-helminth immunity. Macrophage migration inhibitor factor (MIF) is a pleiotropic cytokine, which is produced by many cell types. We demonstrate that mice deficient in MIF have enhanced clearance of a helminth parasite. MIF deficiency in CD4+ T cells was found to be the most important for mediating parasite clearance. We mimicked MIF deficiency by administering an inhibitor of the MIF tautomerase activity, sulforaphane, and this also increased parasite clearance (Section I).

TH2 immune …


International Consensus (Icon) On: Clinical Consequences Of Mite Hypersensitivity, A Global Problem., Mario Sánchez-Borges, Enrique Fernandez-Caldas, Wayne R. Thomas, Martin D. Chapman, Bee Wah Lee, Luis Caraballo, Nathalie Acevedo, Fook Tim Chew, Ignacio J. Ansotegui, Leili Behrooz, Wanda Phipatanakul, Roy Gerth Van Wijk, Demoly Pascal, Nelson Rosario, Motohiro Ebisawa, Mario Geller, Santiago Quirce, Susanne Vrtala, Rudolf Valenta, Markus Ollert, Giorgio Walter Canonica, Moises A. Calderón, Charles S. Barnes, Adnan Custovic, Suwat Benjaponpitak, Arnaldo Capriles-Hulett Jan 2017

International Consensus (Icon) On: Clinical Consequences Of Mite Hypersensitivity, A Global Problem., Mario Sánchez-Borges, Enrique Fernandez-Caldas, Wayne R. Thomas, Martin D. Chapman, Bee Wah Lee, Luis Caraballo, Nathalie Acevedo, Fook Tim Chew, Ignacio J. Ansotegui, Leili Behrooz, Wanda Phipatanakul, Roy Gerth Van Wijk, Demoly Pascal, Nelson Rosario, Motohiro Ebisawa, Mario Geller, Santiago Quirce, Susanne Vrtala, Rudolf Valenta, Markus Ollert, Giorgio Walter Canonica, Moises A. Calderón, Charles S. Barnes, Adnan Custovic, Suwat Benjaponpitak, Arnaldo Capriles-Hulett

Manuscripts, Articles, Book Chapters and Other Papers

Since mite allergens are the most relevant inducers of allergic diseases worldwide, resulting in significant morbidity and increased burden on health services, the International Collaboration in Asthma, Allergy and Immunology (iCAALL), formed by the American Academy of Allergy, Asthma and Immunology (AAAAI), the American College of Allergy, Asthma and Immunology (ACAAI), the European Academy of Allergy and Clinical Immunology (EAACI), and the World Allergy Organization (WAO), has proposed to issue an International Consensus (ICON) on the clinical consequences of mite hypersensitivity. The objectives of this document are to highlight aspects of mite biology that are clinically relevant, to update the …


Mast Cell Activation By Diverse Stimuli Can Be Suppressed By Steroid Therapy And Targeting The Fyn-Stat5b Cascade, Anuya Paranjape Jan 2017

Mast Cell Activation By Diverse Stimuli Can Be Suppressed By Steroid Therapy And Targeting The Fyn-Stat5b Cascade, Anuya Paranjape

Theses and Dissertations

Mast cells are critical effectors of allergic disease that can be activated by numerous stimuli. We have examined mast cell control by the inflammatory cytokine, IL-33, as well as IgG. In the first study reported here, we found that the synthetic glucocorticoid, dexamethasone, potently and rapidly suppressed IL-33-induced cytokine production from murine bone marrow–derived and peritoneal mast cells, as well as human mast cells. Dexamethasone also antagonized IL-33-mediated enhancement of IgE-induced cytokine production and migration. Although dexamethasone had no effect on IL-33-induced phosphorylation of MAP kinases or NFκB p65 subunit, it antagonized AP-1 and NFκB-mediated transcriptional activity. Finally, intraperitoneal administration …


The Clinical Utility Of Concomitant Pten And Fas Deletion As An Early Indicator For Prostate Adenocarcinoma Subtypes That Lead To Extracapsular Metastasis, Brendan J. Coulter, Phillip Harries Dec 2016

The Clinical Utility Of Concomitant Pten And Fas Deletion As An Early Indicator For Prostate Adenocarcinoma Subtypes That Lead To Extracapsular Metastasis, Brendan J. Coulter, Phillip Harries

Electronic Theses & Dissertations

The utility of genes PTEN and FAS as prognostic markers for the identification of early and/or aggressive prostatic adenocarcinomas is seemingly validated in the study results we obtained using fluorescence in-situ hybridization (FISH) of archived paraffin embedded surgical prostate core biopsy samples obtained from two CLIA and CAP licensed anatomical pathology labs (Bostwick Laboratories, Uniondale, NV and GoPath Laboratories, Buffalo Grove, IL). From early benign subsets of sample cases to aggressive extracapsular invasive tumors, the presence of random deletions evolves into clonal populations of co-deletion of both genes at question. We identify independent research that demonstrates the ability of these …