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Non-barrier Contraception Increases Mononuclear Cells at the Endocervical Mucosa of Healthy Women
Manyu Prakash*1, S Patterson1, and M Kapembwa2
1Imperial Coll of Sci Tech & Med, Northwick Park and St Marks Hosp, Middlesex, UK and 2Imperial Coll of Sci Tech & Med, Chelsea and Westminster Hosp, London, UK
The principal role of contraception is to prevent pregnancy.
However, secondary functional and morphological changes may occur in genital
tract mucosa. This study examined the effect of non-barrier and barrier
contraception on T lymphocyte subsets and macrophages at the intraepithelial
layer of the endocervix of healthy women. Mucosal cells were recovered using a
cytobrush and analysed by flow cytometry. An increase
of T lymphocytes (CD4+ P<0.001,
CD8+ P<0.01) and macrophages (P<0.005) was observed in women using
non-barrier contraception compared to barrier method users. A further
comparison between individual contraceptive users and non-users demonstrated
increased mononuclear cell subsets in women using the intra-uterine device
(CD4+ P<0.05), combined oral
contraceptives (CD4+ P<0.01, CD8+ P<0.05, CD14+ P<0.05) and no contraception
(CD4+ P<0.05, CD14+ P<0.02). These findings suggest cell subpopulations in
the cervical mucosa can be influenced by the type of contraception used. Increased endocervical mononuclear cells
among non-barrier contraceptive users suggest heightened local recruitment that
could be a possible factor in the transmission of HIV-1.
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