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Now showing items 11-20 of 26
A common HLA-DP genotype is associated with resistance to hiv-1 infection in Kenyan sex workers
(Univerisyt of Nairobi, 2008-10)
HLA-DP antigens present peptides to CD4+ T cells and play an important role in parasitic infections and autoimmune diseases, yet their influence on HIV-1 susceptibility has not been well studied. Here, we report several ...
Reduced Cellular Susceptibility to In Vitro HIV Infection Is Associated with CD4+ T Cell Quiescence
(2012)
Background
HIV preferentially establishes productive infection in activated CD4+ T cells. Since proportions of activated CD4+ T cells vary between individuals, this study aimed to determine if individuals with a greater ...
Anti-HIV-1 Activity of Elafin Is More Potent than Its Precursor's, Trappin-2, in Genital Epithelial Cells
(2012)
Cervicovaginal lavage fluid (CVL) is a natural source of anti-HIV-1 factors; however, molecular characterization of the anti-HIV-1 activity of CVL remains elusive. In this study, we confirmed that CVLs from HIV-1-resistant ...
The HAART cell phone adherence trial (WelTel Kenya1): a randomized controlled trial protocol
(2009)
The objectives are to compare the effectiveness of cell phone-supported SMS
messaging to standard care on adherence, quality of life, retention, and mortality in a population
receiving antiretroviral therapy (ART) in ...
Effects of a mobile phone short message service on antiretroviral treatment adherence in Kenya (WelTel Kenya1): a randomised trial
(2010)
Mobile (cell) phone communication has been suggested as a method to improve delivery of health services. However, data on the effects of mobile health technology on patient outcomes in resource-limited settings are limited. ...
A Trim5alpha Exon 2 Polymorphism is Associated with Protection from HIV-1 Infection in Pumwani Sexworker Cohort
(2010)
Objective
The innate immune component TRIM5α has the ability to restrict retrovirus infection in a species-specific manner. TRIM5α of some primate species restricts infection by HIV-1, while huTRIM5α lacks this specificity. ...
Presence of CD8+ T Cells in the Ectocervical Mucosa Correlates with Genital Viral Shedding in HIV-Infected Women despite a Low Prevalence of HIV RNA–Expressing Cells in the Tissue
(2014)
The female genital tract is a portal of entry for sexual HIV transmission and a possible viral reservoir. In this study, the ectocervical CD8+ T cell distribution was explored in situ and was related to expression of CD3 ...
High Prevalence of Genetically Similar HIV-1 Recombinants among Infected Sex Workers in Nairobi, Kenya
(University of Nairobi, 2008)
HIV-1, a highly diverse infectious agent, shows the greatest sequence diversity in highly exposed individuals, including greater levels of recombination. HIV-1 diversity in Nairobi, Kenya was examined in 240 individuals, ...
Elevated expression of LAG-3, but not PD-1, is associated with impaired iNKT cytokine production during chronic HIV-1 infection and treatment
(University of Nairobi, 2015)
Background:
LAG-3 is a potent negative regulator of the immune response but its impact in HIV infection in
poorly understood. Unlike exhaustion markers such as PD-1, Tim-3, 2B4 and CD160, LAG-3 is poorly expressed on
bulk ...
Enrichment of LAG-3, but not PD-1, on Double Negative T Cells at the Female Genital Tract
(University of Nairobi, 2014-12)
Problem
The expression of inhibitory markers such as LAG-3 and PD-1 on T lymphocytes regulates immune function. Their expression at the genital mucosa is poorly understood, but regulation of immune activation at the ...