UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

The effects of early syphilis on CD4 counts and HIV-1 RNA viral loads in blood and semen

Sadiq, ST; McSorley, J; Copas, AJ; Bennett, J; Edwards, SJ; Kaye, S; Kirk, S; ... Weller, IVD; + view all (2005) The effects of early syphilis on CD4 counts and HIV-1 RNA viral loads in blood and semen. SEX TRANSM INFECT , 81 (5) 380 - 385. 10.1136/sti.2004.012914. Green open access

[img]
Preview
PDF
6681.pdf

Download (105kB)

Abstract

Objective: To examine the effect of early syphilis on blood and semen plasma HIV-1 viral loads and CD4 counts.Methods: In a retrospective case-control study, blood plasma HIV-1 viral loads and CD4 counts in cases during early syphilis ( n = 63, 27 receiving antiretroviral therapy) were compared to those before and after syphilis and with controls with non-systemic acute sexually transmitted infections (STI) ( n = 104, 39 receiving antiretroviral therapy). In a prospective substudy in those not receiving antiretroviral therapy, semen plasma viral loads during early syphilis ( n = 13) were compared with those 1 month, 3 months, and 6 months after treatment for syphilis and with controls with no STIs ( n = 20).Results: Retrospective study: CD4 counts were similar in cases ( median 410, n = 139 counts) during early syphilis compared to before ( 485, n = 80) and after ( 475, n = 88). In a secondary analysis, a drop in CD4 count (21%) among those with early latent syphilis was observed compared with controls. Blood plasma viral loads did not change significantly overall or in those with primary, secondary, or early latent syphilis. Effects were similar on or off antiretroviral therapy. Prospective study: blood and semen viral loads were slightly higher in cases compared with controls but treatment of early syphilis did not reduce either.Conclusions: We detected no association between early syphilis and changes in blood or semen viral load or CD4 count. Increased HIV-1 infectivity associated with early syphilis is unlikely to be associated with increased levels of HIV-1 RNA in blood or semen.

Type: Article
Title: The effects of early syphilis on CD4 counts and HIV-1 RNA viral loads in blood and semen
Open access status: An open access version is available from UCL Discovery
DOI: 10.1136/sti.2004.012914
Keywords: IMMUNODEFICIENCY-VIRUS TYPE-1, BORRELIA-BURGDORFERI LIPOPROTEINS, SEXUALLY-TRANSMITTED-DISEASES, SURFACE CCR5 DENSITY, NF-KAPPA-B, TREPONEMA-PALLIDUM, SECONDARY SYPHILIS, IMMUNE ACTIVATION, SEMINAL PLASMA, ANTIRETROVIRAL THERAPY
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute for Global Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute for Global Health > Infection and Population Health
URI: https://discovery.ucl.ac.uk/id/eprint/6681
Downloads since deposit
237Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item