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Alzheimer’s disease (AD) is the leading cause of dementia affecting greater than 26 million people worldwide. Although cerebrospinal fluid (CSF) levels of Aβ42, tau, and p-tau181 are well established as diagnostic biomarkers of AD, there is a need for additional CSF biomarkers of neuronal function that continue to change during disease progression and could(More)
The purpose of the study was to determine associations between pre-antiretroviral therapy (ART) senescent CD8+ T lymphocytes and naïve versus non-naive CD8+ and CD4+ T lymphocyte subpopulations and CD4+ responses after initiation of ART in younger versus older individuals. Retrospective analysis of 100 subjects with pre-ART cryopreserved peripheral blood(More)
AIM Commercial kits can provide a convenient solution for measuring circulating biomarkers to support drug development. However, their suitability should be assessed in the disease matrix of interest. METHODOLOGY Twelve biomarkers were evaluated in samples from patients with rheumatoid arthritis. We used immunoassay kits from five vendors on three(More)
To avoid HIV testing stigma, people may engage in non-stigmatized behaviors to conceal their interest in HIV testing. We examined 165,828 outpatient visits in a 2002–2007 national survey to explore whether people receiving an HIV diagnostic test, compared to people receiving non-stigmatized, diagnostics tests (mammography and blood pressure testing), listed(More)
Longitudinal behavioral intervention trials to reduce HIV transmission risk collect complex multilevel and multivariate data longitudinally for each subject with important correlation structures across time, level, and variables. Accurately assessing the effects of these trials are critical for determining which interventions are effective. Both numbers of(More)
OBJECTIVE To describe the postpartum health of predominantly Hispanic participants in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) and identify how health characteristics differ between mothers who delivered preterm or low birth weight infants and those who did not. DESIGN Cross-sectional survey among postpartum WIC(More)
As biomarkers continue to become an integral part of drug development and decision-making, there are increased expectations for reliable and quantitative assays. Protein biomarker assay results are directly influenced by the calibrator material. The selection of calibrator material presents many challenges that impact the relative accuracy and performance(More)
The aim of this study was to assess potential prepregnancy risk factors for preterm birth in a low-income, Hispanic population in Southern California. Additionally, the study assessed whether the prevalence of preterm birth and any associations between risk factors and preterm birth differed between U.S.- and foreign-born mothers. The study sample included(More)
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