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Immune System Diseases

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Articles 871 - 900 of 1261

Full-Text Articles in Diseases

Progressive Ataxia In An Aids Patient On Antiretroviral Therapy, Misbahuddin Syed Md Oct 2014

Progressive Ataxia In An Aids Patient On Antiretroviral Therapy, Misbahuddin Syed Md

Department of Medicine

No abstract provided.


Smarter Vaccine Design Will Circumvent Regulatory T Cell-Mediated Evasion In Chronic Hiv And Hcv Infection, Leonard Moise, Frances Terry, Andres H. Gutierrez, Ryan Tassone, Phyllis Losikoff, Stephen H. Gregory, Chris Bailey-Kellogg Oct 2014

Smarter Vaccine Design Will Circumvent Regulatory T Cell-Mediated Evasion In Chronic Hiv And Hcv Infection, Leonard Moise, Frances Terry, Andres H. Gutierrez, Ryan Tassone, Phyllis Losikoff, Stephen H. Gregory, Chris Bailey-Kellogg

Dartmouth Scholarship

Despite years of research, vaccines against HIV and HCV are not yet available, due largely to effective viral immunoevasive mechanisms. A novel escape mechanism observed in viruses that cause chronic infection is suppression of viral-specific effector CD4(+) and CD8(+) T cells by stimulating regulatory T cells (Tregs) educated on host sequences during tolerance induction. Viral class II MHC epitopes that share a T cell receptor (TCR)-face with host epitopes may activate Tregs capable of suppressing protective responses. We designed an immunoinformatic algorithm, JanusMatrix, to identify such epitopes and discovered that among human-host viruses, chronic viruses appear more human-like than viruses …


Myasthenia Gravis: A Closer Look, Erin L. Ricker Oct 2014

Myasthenia Gravis: A Closer Look, Erin L. Ricker

Nursing Student Class Projects (Formerly MSN)

Myasthenia gravis (MG) is a rare, chronic autoimmune disease that affects the neurotransmitter acetylcholine and the acetylcholine receptors at the neuromuscular junction (Mestecky, 2013). MG causes fluctuating skeletal muscle weakness and fatigue. According to the Myasthenia Gravis Foundation of America (MGFA) (2010), 20 per 100,000 patients are diagnosed with MG, although researchers believe several more patients are misdiagnosed or missed entirely. Several neurological disorders have similar clinical presentations to MG making it difficult for inexperienced practitioners to identify and properly diagnose patients. Patients are often misdiagnosed and delayed proper treatment for one to two years after initial presentation of symptoms …


Global Burden Of Tuberculosis, Diana Moses Oct 2014

Global Burden Of Tuberculosis, Diana Moses

Nursing Student Class Projects (Formerly MSN)

Tuberculosis (TB) is a major health concern not only in the United States, but in the entire world. TB is an airborne communicable infection which has affected human beings from immemorial times, evidenced by TB being found in the skeletal remains of ancient mummies (Gough & Kaufman, 2011). There are many patho physiological events in TB that concern the entire body, especially the respiratory and immunological systems. According to Knechel, TB prevalence is rising due to the increased number of patients infected with HIV, bacterial resistance to medications, increased international travel and immigration from countries with high prevalence of TB, …


Steven-Johnson’S Syndrome/Toxic Epidermal Necrolysis, Lindsey Grant Oct 2014

Steven-Johnson’S Syndrome/Toxic Epidermal Necrolysis, Lindsey Grant

Nursing Student Class Projects (Formerly MSN)

Steven-Johnson’s Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) are both diseases mediated by hypersensitive immune reactions resulting in “full thickness epidermal necrosis” characterized by skin detachment. However, in SJS, there is only 10% skin surface area involvement whereas in TEN, over 30% of the skin becomes detached. TENS has a 50% mortality rate. (East-Innis & Thompson, 2013, p. 590) Why Chosen: SJS/TEN is a rare but extremely fatal disease. Initially, it is often mistaken as a simple allergic reaction to a new medication or environmental exposure because both cause truncal rashes and fevers. However, simple allergic reactions occur within days …


Effects Of 5-Aza-2' Deoxycitidine And Sulforaphane On Major Histocompatibility Complex (Mhc) Classes I And Ii Surface Expression In Human Acute T-Cell Leukemia Cell Jurkat, Ali Salam Abdullah Ms Oct 2014

Effects Of 5-Aza-2' Deoxycitidine And Sulforaphane On Major Histocompatibility Complex (Mhc) Classes I And Ii Surface Expression In Human Acute T-Cell Leukemia Cell Jurkat, Ali Salam Abdullah Ms

All Student Scholarship

The immune system cells recognize and kill cancer cells by engaging the tumor antigens on the surfaces of cancer cells presented by the Major Histocompatibility Complex (MHC). Cancer cells can escape from immune system cells recognition and/or killing by down-regulating the MHC expression through genetic or epigenetic mechanisms.


Understanding Treatment Refusal Among Adults Presenting For Hiv-Testing In Soweto, South Africa: A Qualitative Study, Ingrid T. Katz, Janan Dietrich, Gugu Tshabalala, Thandekile Essien, Kathryn Rough, Alexi A. Wright, David Bangsberg, Glenda E. Gray, Norma C. Ware Oct 2014

Understanding Treatment Refusal Among Adults Presenting For Hiv-Testing In Soweto, South Africa: A Qualitative Study, Ingrid T. Katz, Janan Dietrich, Gugu Tshabalala, Thandekile Essien, Kathryn Rough, Alexi A. Wright, David Bangsberg, Glenda E. Gray, Norma C. Ware

OHSU-PSU School of Public Health Faculty Publications and Presentations

HIV treatment initiatives have focused on increasing access to antiretroviral therapy (ART). There is growing evidence, however, that treatment availability alone is insufficient to stop the epidemic. In South Africa, only one third of individuals living with HIV are actually on treatment. Treatment refusal has been identified as a phenomenon among people who are asymptomatic, however, factors driving refusal remain poorly understood. We interviewed 50 purposively sampled participants who presented for voluntary counseling and testing in Soweto to elicit a broad range of detailed perspectives on ART refusal. We then integrated our core findings into an explanatory framework. Participants described …


Racial And Ethnic Disparities In Time To Cure Of Incontinence Present At Nursing Home Admission, Donna Z. Bliss, Olga Gurvich, Kay Savik, Lynn Eberly, Susan Harms, Jean F. Wyman Sep 2014

Racial And Ethnic Disparities In Time To Cure Of Incontinence Present At Nursing Home Admission, Donna Z. Bliss, Olga Gurvich, Kay Savik, Lynn Eberly, Susan Harms, Jean F. Wyman

Journal of Health Disparities Research and Practice

Abstract

As many as half of older people that are admitted to nursing homes (NHs) are incontinent of urine and/or feces. Not much is known about the rate of cure of incontinence present at NH admission, but available reports suggest the rate is low. There have been racial and ethnic disparities in incontinence treatment, but the role of disparities in the cure of incontinence is understudied. Using the Peters-Belson method and multilevel predictors, our findings showed that there were disparities in the time to cure of incontinence for Hispanic NH admissions. A significantly smaller proportion of older Hispanic admissions were …


Persistent Hiv-Related Stigma In Rural Uganda During A Period Of Increasing Hiv Incidence Despite Treatment Expansion, Brian T. Chan, Sheri D. Weiser, Yap Boum Ii, Mark J. Siedner, Rain Mocello, Jessica E. Haberer, Peter Hunt, Jeffrey N. Martin, Kenneth H. Mayer, David Bangsberg, Alexander C. Tsai Sep 2014

Persistent Hiv-Related Stigma In Rural Uganda During A Period Of Increasing Hiv Incidence Despite Treatment Expansion, Brian T. Chan, Sheri D. Weiser, Yap Boum Ii, Mark J. Siedner, Rain Mocello, Jessica E. Haberer, Peter Hunt, Jeffrey N. Martin, Kenneth H. Mayer, David Bangsberg, Alexander C. Tsai

OHSU-PSU School of Public Health Faculty Publications and Presentations

Objective—Program implementers have argued that the increasing availability of anti-retroviral therapy (ART) will reduce the stigma of HIV. We analyzed data from Uganda to assess how HIV-related stigma has changed during a period of ART expansion.

Design—Serial cross-sectional surveys.

Methods—We analyzed data from the Uganda AIDS Rural Treatment Outcomes (UARTO) study during 2007-2012 to estimate trends in internalized stigma among people living with HIV (PLHIV) at the time of treatment initiation. We analyzed data from the Uganda Demographic and Health Surveys (DHS) from 2006 and 2011 to estimate trends in stigmatizing attitudes and anticipated stigma in the general population. We …


Delayed Switch Of Antiretroviral Therapy After Virologic Failure Associated With Elevated Mortality Among Hiv-Infected Adults In Africa, Maya L. Petersen, Linh Tran, Elvin H. Geng, Steven J. Reynolds, Andrew Kambugu, Robin Wood, David Bangsberg, Constantin T. Yiannoutsos, Steven G. Deeks, Jeffrey N. Martin Sep 2014

Delayed Switch Of Antiretroviral Therapy After Virologic Failure Associated With Elevated Mortality Among Hiv-Infected Adults In Africa, Maya L. Petersen, Linh Tran, Elvin H. Geng, Steven J. Reynolds, Andrew Kambugu, Robin Wood, David Bangsberg, Constantin T. Yiannoutsos, Steven G. Deeks, Jeffrey N. Martin

OHSU-PSU School of Public Health Faculty Publications and Presentations

Objective—Routine monitoring of plasma HIV RNA among HIV-infected patients on antiretroviral therapy (ART) is unavailable in many resource-limited settings. Alternative monitoring approaches correlate poorly with virologic failure and can substantially delay switch to second-line therapy. We evaluated the impact of delayed switch on mortality among patients with virologic failure in Africa.

Design—A cohort.

Methods—We examined patients with confirmed virologic failure on first-line non-nucleoside reverse transcriptase inhibitor (NNRTI)-based regimens from four cohorts with serial HIV RNA monitoring in Uganda and South Africa. Marginal structural models aimed to estimate the effect of delayed switch on mortality in a hypothetical trial in which …


High Medication Adherence During Periconception Periods Among Hiv-1–Uninfected Women Participating In A Clinical Trial Of Antiretroviral Pre-Exposure Prophylaxis, Lynn T. Matthews, Renee Heffron, Nelly R. Mugo, Craig R. Cohen, Craig W. Hendrix, Connie Celum, David Bangsberg, Jared M. Baten Sep 2014

High Medication Adherence During Periconception Periods Among Hiv-1–Uninfected Women Participating In A Clinical Trial Of Antiretroviral Pre-Exposure Prophylaxis, Lynn T. Matthews, Renee Heffron, Nelly R. Mugo, Craig R. Cohen, Craig W. Hendrix, Connie Celum, David Bangsberg, Jared M. Baten

OHSU-PSU School of Public Health Faculty Publications and Presentations

Introduction: Pre-exposure prophylaxis (PrEP) may be an important safer conception strategy for HIV-1–uninfected women with HIV-1–infected partners. Understanding medication adherence in this population may inform whether PrEP is a feasible safer conception strategy.

Methods: We evaluated predictors of pregnancy and adherence to study medication among HIV-1–uninfected women enrolled in a randomized placebo-controlled trial of PrEP among African HIV-1– serodiscordant couples. Participants were counseled on HIV-1 risk reduction, contraception, and adherence and tested for pregnancy at monthly study visits. Pill counts of dispensed drug were performed and, at a subset of visits, plasma was collected to measure active drug concentration.

Results: …


A Rhetorical Analysis Of The Rethinking Aids Website, Jennifer Dettmann Aug 2014

A Rhetorical Analysis Of The Rethinking Aids Website, Jennifer Dettmann

Journal of Undergraduate Research at Minnesota State University, Mankato

A group of scientists known as the Group for Scientific Reappraisal of the HIV-AIDS hypothesis created a web site title, Rethinking AIDS. The group behind the web site argues that AIDS is not a sexually transmitted disease. They even question the existence of the virus entity. My analysis is driven by the critical question: Does the web site construct a reality that affectively alters our perception of HIV-AIDS? In order to answer this question, Goodnight and Poulakos 1981 article, Conspiracy rhetoric: from pragmatism to fantasy to public discourse (Western Journal of Speech), will be utilized.


Empiric Deworming And Cd4 Count Recovery In Hiv-Infected Ugandans Initiating Antiretroviral Therapy, Alexander J. Lankowski, Alexander C. Tsai, Michael Kanyesigye, Mwebesa B. Bwana, Jessica E. Haberer, Megan Wenger, Jeffrey N. Martin, David Bangsberg, Peter W. Hunt, Mark J. Siedner Aug 2014

Empiric Deworming And Cd4 Count Recovery In Hiv-Infected Ugandans Initiating Antiretroviral Therapy, Alexander J. Lankowski, Alexander C. Tsai, Michael Kanyesigye, Mwebesa B. Bwana, Jessica E. Haberer, Megan Wenger, Jeffrey N. Martin, David Bangsberg, Peter W. Hunt, Mark J. Siedner

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: There is conflicting evidence on the immunologic benefit of treating helminth co-infections (‘‘deworming’’) in HIV-infected individuals. Several studies have documented reduced viral load and increased CD4 count in antiretroviral therapy (ART) naive individuals after deworming. However, there are a lack of data on the effect of deworming therapy on CD4 count recovery among HIV-infected persons taking ART.

Methodology/Principal Findings: To estimate the association between empiric deworming therapy and CD4 count after ART initiation, we performed a retrospective observational study among HIV-infected adults on ART at a publicly operated HIV clinic in southwestern Uganda. Subjects were assigned as having received …


South Africans With Recent Pregnancy Rarely Know Partner’S Hiv Serostatus: Implications For Serodiscordant Couples Interventions, Lynn T. Matthews, Lizzie Moore, Tamaryn L. Crankshaw, Cecilia Milford, Fortunate N. Mosery, Ross Greener, Christina Psaros, Steven A, Safren, David Bangsberg, Jennifer A. Smit Aug 2014

South Africans With Recent Pregnancy Rarely Know Partner’S Hiv Serostatus: Implications For Serodiscordant Couples Interventions, Lynn T. Matthews, Lizzie Moore, Tamaryn L. Crankshaw, Cecilia Milford, Fortunate N. Mosery, Ross Greener, Christina Psaros, Steven A, Safren, David Bangsberg, Jennifer A. Smit

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Implementation of safer conception strategies requires knowledge of partner HIV-serostatus. We recruited women and men in a high HIV-prevalence setting for a study to assess periconception risk behavior among individuals reporting HIV-serodiscordant partnerships. We report screening data from that study with the objective of estimating the proportion of individuals who are aware that they are in an HIV-serodiscordant relationship at the time of conception.

Methods: We screened women and men attending antenatal and antiretroviral clinics in Durban, South Africa for enrollment in a study of periconception risk behavior among individuals with serodiscordant partners. Screening questionnaires assessed for study eligibility …


The Mucosal Expression Pattern Of Interferon-Ε In Rhesus Macaques, Andrew Demers, Guobin Kang, Fangrui Ma, Wuxun Lu, Zhe Yuan, Yue Li, Mark Lewis, Edmundo N. Kraiselburd, Luis Montaner, Qingsheng Li Aug 2014

The Mucosal Expression Pattern Of Interferon-Ε In Rhesus Macaques, Andrew Demers, Guobin Kang, Fangrui Ma, Wuxun Lu, Zhe Yuan, Yue Li, Mark Lewis, Edmundo N. Kraiselburd, Luis Montaner, Qingsheng Li

Qingsheng Li Publications

Type I IFNs play an important role in innate and adaptive immunity against viral infections. A novel type I IFN, namely IFN-ε, which can protect against vaginal transmission of HSV2 and Chlamydia muridarum bacterial infection, has been described in mice and humans. Nevertheless, the principle cell type and the expression pattern of IFN-ε in tissues remain uncertain. In addition, the expression of IFN-ε in Indian rhesus macaques (Macaca mulatta) has not been reported. Here, we analyzed IFN-ε expression in multiple mucosal sites of uninfected or SIV-infected Indian rhesus macaques using IHCS. We report for the first time the …


Will Hiv Vaccination Reshape Hiv Risk Behavior Networks? A Social Network Analysis Of Drug Users' Anticipated Risk Compensation, April M. Young, Daniel S. Halgin, Ralph J. Diclemente, Claire E. Sterk, Jennifer R. Havens Jul 2014

Will Hiv Vaccination Reshape Hiv Risk Behavior Networks? A Social Network Analysis Of Drug Users' Anticipated Risk Compensation, April M. Young, Daniel S. Halgin, Ralph J. Diclemente, Claire E. Sterk, Jennifer R. Havens

Epidemiology and Environmental Health Faculty Publications

Background

An HIV vaccine could substantially impact the epidemic. However, risk compensation (RC), or post-vaccination increase in risk behavior, could present a major challenge. The methodology used in previous studies of risk compensation has been almost exclusively individual-level in focus, and has not explored how increased risk behavior could affect the connectivity of risk networks. This study examined the impact of anticipated HIV vaccine-related RC on the structure of high-risk drug users' sexual and injection risk network.

Methods

A sample of 433 rural drug users in the US provided data on their risk relationships (i.e., those involving recent unprotected sex …


Decreases In Self-Reported Alcohol Consumption Following Hiv Counseling And Testing At Mulago Hospital, Kampala, Uganda, Judith A. Hahn, Robin Fatch, Rhoda K. Wanyenze, Steven Baveewo, Moses R. Kamya, David Bangsberg, Thomas J. Coates Jul 2014

Decreases In Self-Reported Alcohol Consumption Following Hiv Counseling And Testing At Mulago Hospital, Kampala, Uganda, Judith A. Hahn, Robin Fatch, Rhoda K. Wanyenze, Steven Baveewo, Moses R. Kamya, David Bangsberg, Thomas J. Coates

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Alcohol use has a detrimental impact on the HIV epidemic, especially in sub-Saharan Africa. HIV counseling and testing (HCT) may provide a contact opportunity to intervene with hazardous alcohol use; however, little is known about how alcohol consumption changes following HCT.

Methods: We utilized data from 2056 participants of a randomized controlled trial comparing two methods of HCT and subsequent linkage to HIV care conducted at Mulago Hospital in Kampala, Uganda. Those who had not previously tested positive for HIV and whose last HIV test was at least one year in the past were eligible. Participants were asked at …


A Transdisciplinary Approach To Eliminate Cancer Disparities: An Overview Of Community Engagement And Outreach Efforts In An National Institute Of Health Center For Excellence, Maisha Standifer, Mph, Julie Baldwin, Phd, Jenna Davis, Mph, Clemente Gwede, Phd, Coni Williams, Ma, Lolita Dash-Pitts, Johnetta Goldsmith, Ms, Thometta Cozart Brooks Ms, Mph, Deanna Wathington, Md, B. Lee Green, Phd, Kevin Sneed, Phamd Jun 2014

A Transdisciplinary Approach To Eliminate Cancer Disparities: An Overview Of Community Engagement And Outreach Efforts In An National Institute Of Health Center For Excellence, Maisha Standifer, Mph, Julie Baldwin, Phd, Jenna Davis, Mph, Clemente Gwede, Phd, Coni Williams, Ma, Lolita Dash-Pitts, Johnetta Goldsmith, Ms, Thometta Cozart Brooks Ms, Mph, Deanna Wathington, Md, B. Lee Green, Phd, Kevin Sneed, Phamd

Journal of Health Disparities Research and Practice

Creating health equity and eliminating health disparities are considered national priorities for improving the health of Americans (U.S. Department of Health and Human Services, n.d.). Health disparities are a primary public health concern, yet are complex phenomena and challenging to research (Harper & Lynch, 2005). The National Institute on Minority Health and Health Disparities (NIMHD), under the National Institute of Health (NIH), is committed to finding solutions to achieve this goal through the creation of interdisciplinary Centers of Excellence. In 2009, the University of South Florida (USF) and Moffitt Cancer Center (Moffitt) received a NIMHD Exploratory Center of Excellence award …


Fty720 (Fingolimod) Provides Insight Into The Molecular Mechanisms Of Multiple Sclerosis, Madelyn Elizabeth Crawford Jun 2014

Fty720 (Fingolimod) Provides Insight Into The Molecular Mechanisms Of Multiple Sclerosis, Madelyn Elizabeth Crawford

Pursuit - The Journal of Undergraduate Research at The University of Tennessee

Multiple sclerosis (MS) is a neurodegenerative disorder caused by a prolonged immune- mediated inflammatory response that targets myelin. Nearly all of the drugs approved for the treatment of MS are general immunosuppressants or only function in symptom management. The oral medication fingolimod, however, is reported to have direct therapeutic effects on cells of the central nervous system in addition to immunomodulatory functions. Fingolimod is known to interact with sphingosine-1-phosphate (S1P) receptors, and the most widely- accepted theory for its mechanism of action is functional antagonism of the receptor. This review examines significant neuromodulatory effects achieved by functional antagonism of the …


Nanotoxicity In Cells Of The Immune System, Jonathan J. Pelc May 2014

Nanotoxicity In Cells Of The Immune System, Jonathan J. Pelc

Science Scholars

Nanoparticles (NPs) provide a new medical approach to drug therapy. As with every new approach, safety precautions need to be taken, and the immediate and long-term effects for many NPs are still unclear. When administering a medical treatment into the human body, the first issue that needs to be addressed is host detection of the medicine and inflammation as a possible result of the treatment. If a new NP treatment causes inflammation before it releases its medicine, that treatment may be ineffective, even damaging to the patient. Small metallic and organic particles have been shown to elicit an inflammatory responses …


Expression Of Toll-Like Receptor (Tlr)-2 And Tlr4 In Monocytes Following Stimulations By Genital Secretions Of Hiv Infected And Uninfected Women With Symptomatic Vulvo-Vaginal Candidiasis, Teke Apalata, Benjamin Longo-Mbenza, A. Willem Sturm, William H. Carr, Prashini Moodley May 2014

Expression Of Toll-Like Receptor (Tlr)-2 And Tlr4 In Monocytes Following Stimulations By Genital Secretions Of Hiv Infected And Uninfected Women With Symptomatic Vulvo-Vaginal Candidiasis, Teke Apalata, Benjamin Longo-Mbenza, A. Willem Sturm, William H. Carr, Prashini Moodley

Publications and Research

Vulvo-vaginal candidiasis (VVC) is a common condition in human immunodeficiency virus (HIV)- infected women. Toll-like receptor (TLR) 2 and TLR4 are key pattern-recognition receptors of the innate immune system in sensing Candida albicans. The aim of this study was to assess the expression of TLR2 and TLR4 signaling pathways in HIV-infected and uninfected women with VVC. Cervico-vaginal fluids (CVF) were obtained from 7 HIV infected and 11 HIV uninfected clinic attendees in KwaZulu-Natal between June, 2011 and December, 2011. VVC was diagnosed clinically and confirmed by Gram stain and culture of genital samples. Monocytes were isolated from a healthy adult …


Benefits And Barriers To Hiv Testing In A Population Of Federal Detention Inmates, Nicole A. Knight Mar 2014

Benefits And Barriers To Hiv Testing In A Population Of Federal Detention Inmates, Nicole A. Knight

Loma Linda University Electronic Theses, Dissertations & Projects

Voluntary HIV testing in combination with early medical intervention has been shown to be effective in reducing the rate of new infections and improving the health and life expectancy of those living with HIV. There are however several high-risk populations in the US that remain largely unreached by HIV testing efforts, some of which could be reached while they spend time in prison or jail. Per current Bureau of Prisons (BOP) policy, HIV testing is routinely offered only to “high risk” pretrial and sentenced inmates. We conducted a cross-sectional study with 721 pretrial and sentenced inmates who entered a large …


Tobacco Use Among Adults Initiating Treatment For Hiv Infection In Rural Uganda, Gina R. Kruse, David Bangsberg, Judith A. Hahn, Jessica E. Haberer, Peter Hunt, Conrad Muzoora, John P. Bennett, Jeffrey N. Martin, Nancy A, Rigotti Mar 2014

Tobacco Use Among Adults Initiating Treatment For Hiv Infection In Rural Uganda, Gina R. Kruse, David Bangsberg, Judith A. Hahn, Jessica E. Haberer, Peter Hunt, Conrad Muzoora, John P. Bennett, Jeffrey N. Martin, Nancy A, Rigotti

OHSU-PSU School of Public Health Faculty Publications and Presentations

We conducted a longitudinal study of tobacco use among adults initiating antiretroviral therapy (ART) in Mbarara, Uganda where 11% of men and 3% of women use tobacco according to the 2011 Demographic and Health Survey. In a prospective cohort, self-reported tobacco use was assessed before starting ART and reassessed every 3–4 months. Plasma cotinine, a nicotine metabolite, was measured in a subset of adults pre-ART to verify self-report. Among 496 subjects, 50 (10%) reported current tobacco use (20% of men, 6% of women). Most (53%) adults with elevated cotinine levels (>15 ng/mL) reported no tobacco use. By 6 months …


Impact Of Hiv On Cd8+ T Cell Cd57 Expression Is Distinct From That Of Cmv And Aging, Sulggi A. Lee, Elizabeth Sinclair, Hiroyu Hatano, Priscilla Y. Hsue, Lorrie Epling, Frederick M. Hecht, David Bangsberg, Jeffrey N. Martin, Joseph M. Mccune, Steven G. Deeks, Peter Hunt Feb 2014

Impact Of Hiv On Cd8+ T Cell Cd57 Expression Is Distinct From That Of Cmv And Aging, Sulggi A. Lee, Elizabeth Sinclair, Hiroyu Hatano, Priscilla Y. Hsue, Lorrie Epling, Frederick M. Hecht, David Bangsberg, Jeffrey N. Martin, Joseph M. Mccune, Steven G. Deeks, Peter Hunt

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Chronic antigenic stimulation by cytomegalovirus (CMV) is thought to increase ‘‘immunosenesence’’ of aging, characterized by accumulation of terminally differentiated CD28- CD8+ T cells and increased CD57, a marker of proliferative history. Whether chronic HIV infection causes similar effects is currently unclear.

Methods: We compared markers of CD8+ T cell differentiation (e.g., CD28, CD27, CCR7, CD45RA) and CD57 expression on CD28- CD8+ T cells in healthy HIV-uninfected adults with and without CMV infection and in both untreated and antiretroviral therapy (ART)-suppressed HIV-infected adults with asymptomatic CMV infection.

Results: Compared to HIV-uninfected adults without CMV (n = 12), those with asymptomatic …


The Dynamic Relationship Between Social Support And Hiv-Related Stigma In Rural Uganda, Sae Takada, Sheri D. Weiser, Elias Kumbakumba, Conrad Muzoora, Jeffrey N. Martin, Peter Hunt, Jessica E. Haberer, Annet Kawuma, David Bangsberg, Alexander C. Tsai Feb 2014

The Dynamic Relationship Between Social Support And Hiv-Related Stigma In Rural Uganda, Sae Takada, Sheri D. Weiser, Elias Kumbakumba, Conrad Muzoora, Jeffrey N. Martin, Peter Hunt, Jessica E. Haberer, Annet Kawuma, David Bangsberg, Alexander C. Tsai

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background—Cross-sectional studies show that human immunodeficiency virus (HIV) stigma is negatively correlated with social support.

Purpose—The purpose of this study is to examine the bidirectional relationship between social support and HIV stigma.

Methods—We collected quarterly data from a cohort of 422 people living with HIV in Uganda, followed for a median of 2.1 years. We used multilevel regression to model the contemporaneous and 3-month-lagged associations between social support and both enacted and internalized stigma.

Results—Lagged enacted stigma was negatively correlated with emotional and instrumental social support, and lagged instrumental social support was negatively correlated with enacted stigma. Internalized stigma and …


The Sustainable Action Against Hiv And Aids In Communities (Sahacom): Impacts On Health And Quality Of Life Of People Living With Hiv In Cambodia, Siyan Yi, Pheak Chhoun, Samantha Brant, Kelley Kita, Samedy Suong, Kouland Thin, Sovannary Tuot Jan 2014

The Sustainable Action Against Hiv And Aids In Communities (Sahacom): Impacts On Health And Quality Of Life Of People Living With Hiv In Cambodia, Siyan Yi, Pheak Chhoun, Samantha Brant, Kelley Kita, Samedy Suong, Kouland Thin, Sovannary Tuot


This study evaluated the impacts of the Sustainable Action against HIV and AIDS in Communities (SAHACOM) Project on health and quality of life of people living with HIV (PLHIV). Outcome indicators from baseline documentation (2010) were compared to those obtained at midterm (2012) and end line (2014). Results showed that HIV prevalence among pregnant women aged 15–24 attending antenatal care decreased from 0.5% at baseline to 0.3% at midterm and end line. Proportion of PLHIV who were on antiretroviral therapy (ART) 12 months after the initiation of the treatment increased from 85% at baseline and midterm to 89.5% at end …


Culture, Caregiving, And Health: Exploring The Influence Of Culture On Family Caregiver Experiences, Jennifer Pharr, Carolee Dodge Francis, Christine Terry, Michele Clark Jan 2014

Culture, Caregiving, And Health: Exploring The Influence Of Culture On Family Caregiver Experiences, Jennifer Pharr, Carolee Dodge Francis, Christine Terry, Michele Clark

School of Public Health Faculty Research

Ethnic minorities are expected to experience a greater demand for family caregiving than non-Latino Whites due to their projected population growth. Although the consensus of researchers on caregiving and culture finds that the caregiving experience differs significantly among cultural/ethnic groups, the question remains as to how cultural values and norms influence the caregiver experiences. We conducted an interpretative, phenomenological qualitative analysis of focus group transcripts from four groups (African American, Asian American, Hispanic American, and European American) for cultural influences on caregiving. Data were collected in Nevada between December 7, 2009, and August 20, 2010. Thirty-five caregivers participated in this …


Caspase-12 And Rheumatoid Arthritis In African-Americans, Laura Marshall, Mohammad Obaidullah, Trista Fuchs, Naomi S. Fineberg, Garland Brinkley, Ted R. Mikuls, Evan Hermel Jan 2014

Caspase-12 And Rheumatoid Arthritis In African-Americans, Laura Marshall, Mohammad Obaidullah, Trista Fuchs, Naomi S. Fineberg, Garland Brinkley, Ted R. Mikuls, Evan Hermel

Faculty Publications & Research of the TUC College of Osteopathic Medicine

CASPASE-12 (CASP12) has a downregulatory function during infection and thus may protect against inflammatory disease. We investigated the distribution of CASP12 alleles (#rs497116) in African-Americans (AA) with rheumatoid arthritis (RA). CASP12 alleles were genotyped in 953 RA patients and 342 controls. Statistical analyses comparing genotype groups were performed using Kruskal–Wallis non-parametric ANOVA with Mann–Whitney U tests and chi-square tests. There was no significant difference in the overall distribution of CASP12 genotypes within AA with RA, but CASP12 homozygous patients had lower baseline joint-narrowing scores. CASP12 homozygosity appears to be a subtle protective factor for some aspects of RA in AA …


Update Of The Who/Iuis Allergen Nomenclature Database Based On Analysis Of Allergen Sequences, C. Radauer, A. Nandy, F. Ferreira, Richard E. Goodman, J. N. Larsen, J. Lidholm, A. Pomés, M. Raulf-Heimsoth, P. Rozynek, W. R. Thomas, Heimo Breiteneder Jan 2014

Update Of The Who/Iuis Allergen Nomenclature Database Based On Analysis Of Allergen Sequences, C. Radauer, A. Nandy, F. Ferreira, Richard E. Goodman, J. N. Larsen, J. Lidholm, A. Pomés, M. Raulf-Heimsoth, P. Rozynek, W. R. Thomas, Heimo Breiteneder

Department of Food Science and Technology: Faculty Publications

The IUIS Allergen Nomenclature Sub-Committee, under the auspices of the World Health Organization and the International Union of Immunological Societies, maintains the systematic nomenclature of allergenic proteins and publishes a database of approved allergen names on its Web site, www.allergen.org. In this paper, we summarize updates of allergen names approved at the meetings of the committee in 2011 through 2013. These changes reflect recent progress in identification, cloning, and sequencing of allergens. The goals of this update were to increase consistency in the classification of allergens, isoallergens, and variants and in the incorporation of the evolutionary classification of proteins into …


Analysis Of The Role Of Astrocyte Elevated Gene-1 In Normal Liver Physiology And In The Onset And Progression Of Hepatocellular Carcinoma, Chadia L. Robertson Jan 2014

Analysis Of The Role Of Astrocyte Elevated Gene-1 In Normal Liver Physiology And In The Onset And Progression Of Hepatocellular Carcinoma, Chadia L. Robertson

Theses and Dissertations

First identified over a decade ago, Astrocyte Elevated Gene-1 (AEG-1) has been studied extensively due to early reports of its overexpression in various cancer cell lines. Research groups all over the globe including our own have since identified AEG-1 overexpression in cancers of diverse lineages including cancers of the liver, colon, skin, prostate, breast, lung, esophagus, neurons and neuronal glia as compared to matched normal tissue. A comprehensive and convincing body of data currently points to AEG-1 as an essential component, critical to the progression and perhaps onset of cancer. AEG-1 is a potent activator of multiple pro-tumorigenic signal transduction …