- Sciaranghella, Gaia;
- Wang, Cuiwei;
- Hu, Haihong;
- Anastos, Kathryn;
- Merhi, Zaher;
- Nowicki, Marek;
- Stanczyk, Frank Z;
- Greenblatt, Ruth M;
- Cohen, Mardge;
- Golub, Elizabeth T;
- Watts, D Heather;
- Alter, Galit;
- Young, Mary A;
- Tsibris, Athe MN
Human immunodeficiency virus (HIV) infectivity increases as receptor/coreceptor expression levels increase. We determined peripheral CD4, CCR5, and CXCR4 expression levels in HIV-uninfected women who used depot medroxyprogesterone acetate (DMPA; n = 32), the levonorgestrel-releasing intrauterine device (LNG-IUD; n = 27), oral contraceptive pills (n = 32), or no hormonal contraception (n = 33). The use of LNG-IUD increased the proportion of CD4(+) and CD8(+) T cells that expressed CCR5; increases in the magnitude of T-cell subset CCR5 expression were observed with DMPA and LNG-IUD use (P < .01 for all comparisons). LNG-IUD and, to a lesser extent, DMPA use were associated with increased peripheral T-cell CCR5 expression.