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1.
AIDS Behav ; 17(6): 2045-52, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23504231

RESUMO

The Africaid Trust is a grassroots South African non-profit organization that engages youth in HIV prevention by harnessing the popularity of football (i.e. soccer). WhizzKids United, the organization's primary program, operates a 12-week program in elementary schools in Pietermaritzburg, South Africa, which aims to impart knowledge and life skills critical to HIV prevention. The goal of this research was to compare elementary school youth who received the program to youth who only received traditional classroom-based HIV education on health behaviors and HIV-related knowledge and stigma. A secondary objective was to evaluate HIV knowledge, sexual behaviors, attitudes towards HIV and health care seeking behaviors among South African youth in grades 9-12. Elementary students who participated in the program reported greater HIV knowledge and lower HIV stigma (p < .001) than those who had not. The majority of youth in grades 9-12 report having sexual relations (55.6%), despite low levels of HIV testing (29.9%) in this high HIV prevalence region of South Africa. The results highlight the importance of supporting community-based HIV educational initiatives that engage high-risk youth in HIV prevention and the need for youth-friendly health services.


Assuntos
Infecções por HIV/prevenção & controle , Serviços de Saúde Escolar , Futebol , Adolescente , Criança , Feminino , Educação em Saúde , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde , Instituições Acadêmicas , África do Sul , Estereotipagem
2.
Mucosal Immunol ; 13(1): 118-127, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31619762

RESUMO

We compared outer and inner foreskin tissue from adolescent males undergoing medical male circumcision to better understand signals that increase HIV target cell availability in the foreskin. We measured chemokine gene expression and the impact of sexually transmitted infections (STIs) on the density and location of T and Langerhans cells. Chemokine C-C ligand 27 (CCL27) was expressed 6.94-fold higher in the inner foreskin when compared with the outer foreskin. We show that the density of CD4+CCR5+ cells/mm2 was higher in the epithelium of the inner foreskin, regardless of STI status, in parallel with higher CCL27 gene expression. In the presence of STIs, there were higher numbers of CD4+CCR5+ cells/mm2 cells in the sub-stratum of the outer and inner foreskin with concurrently higher number of CD207+ Langerhans cells (LC) in both tissues, with the latter cells being closer to the keratin surface of the outer FS in the presence of an STI. When we tested the ability of exogenous CCL27 to induce T-cell migration in foreskin tissue, CD4 + T cells were able to relocate to the inner foreskin epithelium in response. We provide novel insight into the impact CCL27 and STIs on immune and HIV-1 target cell changes in the foreskin.


Assuntos
Infecções Bacterianas/imunologia , Linfócitos T CD4-Positivos/imunologia , Quimiocina CCL27/metabolismo , Prepúcio do Pênis/metabolismo , Infecções por HIV/imunologia , HIV-1/fisiologia , Células de Langerhans/imunologia , Adolescente , Adulto , Infecções Bacterianas/terapia , Movimento Celular , Quimiocina CCL27/genética , Circuncisão Masculina , Prepúcio do Pênis/patologia , Regulação da Expressão Gênica , Infecções por HIV/terapia , Humanos , Masculino , Infecções Sexualmente Transmissíveis , África do Sul , Adulto Jovem
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