Roles of Clinical and Subclinical Reactivated Herpes Simplex Virus Type 2 Infection and Human Immunodeficiency Virus Type 1 (HIV-1)-Induced Immunosuppression on Genital and Plasma HIV-1 Levels.


Nagot, N; Ouedraogo, A; Konate, I; Weiss, HA; Foulongne, V; Defer, MC; Sanon, A; Becquart, P; Segondy, M; Sawadogo, A; Van de Perre, P; Mayaud, P; ANRS 1285 Study Group, ; (2008) Roles of Clinical and Subclinical Reactivated Herpes Simplex Virus Type 2 Infection and Human Immunodeficiency Virus Type 1 (HIV-1)-Induced Immunosuppression on Genital and Plasma HIV-1 Levels. The Journal of infectious diseases, 198 (2). pp. 241-9. ISSN 0022-1899 DOI: https://doi.org/10.1086/589621

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Abstract

Background. @nbsp; Few longitudinal studies have described the interactions between reactivation of herpes simplex virus type 2 (HSV-2) infection (hereafter, "HSV-2 reactivation") and genital and systemic replication of human immunodeficiency virus type 1 (HIV-1). Methods. @nbsp; Women in Burkina Faso who were seropositive for both HIV-1 and HSV-2 were enrolled in a randomized placebo-controlled trial of therapy to suppress reactivation of HSV-2 infection (hereafter, "HSV suppressive therapy"). During the baseline phase, 6 enriched cervicovaginal lavage specimens were obtained over 12 weeks to detect and quantify the HIV-1 RNA and HSV-2 DNA loads. Results. @nbsp; Women with genital ulcer disease (GUD) detected at least once were more likely than women in whom GUD was not detected (risk ratio [RR], 1.23; 95% confidence interval [CI], 1.09-1.37) to have genital HIV-1 RNA detected during >/=1 visit. Similarly, women with genital HSV-2 DNA detected during >/=1 clinic visit were more likely than women in whom genital HSV-2 DNA was not detected (RR, 1.17; 95% CI, 1.01-1.34) to have genital HIV-1 RNA detected at least once. In addition, the mean genital HIV-1 RNA loads for women with GUD detected during >/=1 visit and women with HSV-2 genital shedding detected during >/=1 visit were greater than that for women in whom genital HSV-2 DNA or GUD was never detected. The plasma HIV-1 RNA load was increased among women for whom >/=1 visit revealed GUD (+0.25 log(10) copies/mL; 95% CI, -0.05-0.55) or genital HSV-2 DNA (+0.40 log(10) copies/mL; 95% CI, 0.15-0.66), compared with women who did not experience GUD or HSV-2 genital shedding, respectively. The association of HSV-2 reactivations on HIV-1 replication tended to be stronger in patients with a higher CD4(+) cell count (i.e., >500 cells/muL). The contribution of HSV-2 to HIV-1 replication among women with CD4(+) cell count of </=500 cells/muL was reduced because almost all experienced HIV-1 genital shedding. Conclusions. @nbsp; Both clinical and subclinical HSV-2 reactivations play a role in increasing the rate of HIV-1 replication. HSV suppressive therapy is a promising tool for HIV control. Initiation of such therapy when the CD4(+) cell count is >500 cells/muL deserves further investigation. Clinical trials registration. @nbsp; The ANRS 1285 Study is registered with the National Institutes of Health (registration number NCT00158509).

Item Type: Article
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Clinical Research
Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
Research Centre: Centre for Maternal, Reproductive and Child Health (MARCH)
Tropical Epidemiology Group
PubMed ID: 18593294
Web of Science ID: 257320400013
URI: http://researchonline.lshtm.ac.uk/id/eprint/7449

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