Medicine and Health Sciences Commons^™

Timing Of Antiretroviral Therapy And Systemic Inflammation In Sub-Saharan Africa: Results From The Meta Longitudinal Cohort Study, Mark J. Siedner, Bosco M. Bwana, Stephen Asiimwe, Gideon Amanyire, Nicholas Musinguzi, Jose R. Castillo-Mancilla, Russell P. Tracy, Ingrid T. Katz, David Bangsberg, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

Chronic inflammation predicts complications in persons with human immunodeficiency virus infection. We compared D-dimer, soluble CD14, and interleukin 6 levels before and 12 months after antiretroviral therapy (ART) initiation, among individuals starting ART during earlier-stage (CD4 T-cell count >350/μL) or late-stage disease (CD4 T-cell count <200/ μL). Female sex, older age, viral load, and late-stage disease were associated with pre-ART biomarkers (n = 661; P < .05). However, there were no differences in biomarkers by disease stage after 12 months of ART (n = 438; P > .05), owing to loss from observation and greater declines in biomarkers in latestage initiators (P < .001). Earlier initiation of ART is associated with decreased inflammation, but levels seem to converge between earlier and later initiators surviving to 12 months.

Comparative Assessment Of Methicillin Resistant Staphylococcus Aureus Diagnostic Assays For Use In Resource-Limited Settings, A. Ayebare, Lisa M. Bebell, Joel Bazira, S. Ttendo, V. Katawera, David Bangsberg, Mark J. Siedner, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: The rise of methicillin-resistant Staphylococcus aureus(MRSA) is a global health concern. Paucity of data on MRSA carriage prevalence and diagnostic methods in resource-limited settings hampers efforts to define the problem and plan an appropriate response. Additionally, high variability in cost and logistical characteristics of MRSA screening methods may impede infection control efforts. We compared the performance of locally-available chromogenic agar BD CHROMagar MRSA II and two PCR-based assays (Hain GenoQuick MRSA and Cepheid Xpert SA Complete) for the detection of asymptomatic MRSA carriage in nasal swabs.

Results: During 2015, we enrolled 500 patients from five hospital …

Feasibility Of A Point-Of-Care Test Based On Quantum Dots With A Mobile Phone Reader For Detection Of Antibody Responses, Chan Lee, John Noh, Seth E. O’Neal, Armando E. Gonzalez, Hector H. Garcia, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

We developed a novel and portable fluorescent sensor that integrates a lateral flow assay with a quantum dot (Qdots) label and a mobile phone reader for detection of specific antibodies in human serum. We evaluated the utility of this assay to test for antibodies to the Taenia solium rT24H antigen. It was a retrospective study by examining 112 positive human sera from patients with neurocysticercosis (NCC) including samples from patients with single viable cyst (n = 18), two or more viable cysts (n = 71), and subarachnoid (racemose) cysts (n = 23). These samples were collected from previous study subjects …

Art Adherence And Viral Suppression Are High Among Most Non-Pregnant Individuals With Early-Stage, Asymptomatic Hiv Infection: An Observational Study From Uganda And South Africa, Jessica E. Haberer, Bosco M. Bwana, Catherine Orrell, Stephen Asiimwe, Gideon Amanyire, Nicholas Musinguzi, Mark J. Siedner, Lynn T. Matthews, Alexander Tsai, Ingrid T. Katz, Kathleen Bell, Annet Kembabazi, Stephen Mugisha, Victoria Kibirige, Anna Cross, Nicola Kelly, Bethany Hedt-Gauthie, David R. Bangsberg

OHSU-PSU School of Public Health Faculty Publications and Presentations

Introduction

The success of universal antiretroviral therapy (ART) access and aspirations for an AIDS‐free generation depend on high adherence in individuals initiating ART during early‐stage HIV infection; however, adherence may be difficult in the absence of illness and associated support.

Methods

From March 2015 to October 2017, we prospectively observed three groups initiating ART in routine care in Uganda and South Africa: men and non‐pregnant women with early‐stage HIV infection (CD4 > 350 cells/μL), pregnant women with early‐stage HIV infection and men and non‐pregnant women with late‐stage HIV infection (CD4 < 200 cells/μL). Socio‐behavioural questionnaires were administered and viral loads were performed at 0, 6 and 12 months. Adherence was monitored electronically.

Results

Adherence data were available for 869 participants: 322 (37%) early/non‐pregnant, …

Evaluation Of Cross-Reactivity To Taenia Hydatigena And Echinococcus Granulosus In The Enzyme-Linked Immunoelectrotransfer Blot Assay For The Diagnosis Of Porcine Cysticercosis, Lucho Gomez-Puerta, Ana Vargas-Calla, Yesenia Castillo, Maria Teresa Lopez-Urbina, Pierre Dorny, Hector H. Garcia, Armando E. Gonzalez, Seth E. O'Neal

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background:

Taenia solium is an important zoonotic parasite that infects humans as definitive host (taeniasis) and pigs as intermediate host (cysticercosis). Serological diagnosis of porcine cysticercosis is limited to antigen detection using ELISA, which is known to cross-react with other Taenia species, and antibody detection using the lentil-lectin glycoprotein enzyme-linked immunoelectrotransfer blot (LLGP EITB), which has not been adequately evaluated for cross-reactivity to other parasites. Field studies suggest that the GP50 diagnostic band of the LLGP EITB may crossreact to Taenia hydatigena, a common non-zoonotic parasitic infection of pigs. The objective of this study was to evaluate the specificity of …