Study of How Bacterial Vaginosis and Its Treatment Affects Cervical and Vaginal Tissue

Study Summary

This is a research study to determine whether bacterial vaginosis (BV) changes the cervico-vaginal tissue (skin covering the cervix and vagina) and makes women at higher risk for getting HIV (Human Immunodeficiency Virus). Vaginal and cervical tissue biopsies from women with BV will be obtained and infected OUTSIDE the body (ex vivo) with HIV. BV is a vaginal infection that develops when there is an imbalance in the normal bacteria found in a woman's vagina. It is the most common cause of vaginal discharge among women of child-bearing age. BV infections potentially harm the safety of the tissue surrounding the cervico-vaginal region. When the cervico-vaginal tissue is not well protected, the risk of acquiring HIV from an infected partner might increase significantly. Studies have shown that HIV is more common in women with BV than in women with normal vaginal bacteria. Treatment of BV typically involves the use of antibiotics. Antibiotics kill harmful bacteria and provide a temporary relief from the symptoms caused by the infection. Women participating in this study will use the generic antibiotic metronidazole, also known as Flagyl. The Center for Disease Control and Prevention (CDC) recommends Flagyl for the treatment of BV. The study will evaluate HIV infection and safety of cervico-vaginal tissue in women at 3 different time periods: 1. During a BV infection 2. Approximately 1 week after completing a 7-day course of metronidazole therapy 3. Approximately 1 month after completing the 7-day course of metronidazole therapy You will not come in contact with HIV during this study - only your samples (after we have removed them from your vagina/cervix) come in contact with HIV.

Interventions

• DRUG Metronidazole