Publications by authors named "Marina Villarroel"
Introduction Women require effective contraception until they reach menopause. The long acting reversible contraceptives (LARC) and the depot-medroxyprogesterone acetate (DMPA, Depo-Provera®, Pfizer, Puurs, Belgium) are great options and can replace possible sterilizations. Purpose To assess the relationship between the use of LARCs and DMPA and terminations ascribed to menopause and sterilizations in a Brazilian clinic.
View Article and Find Full Text PDFArticle Synopsis
- This study examines the identification of Lactobacillus species in the vagina through two different methods: biochemical profiling and molecular biology (Multiplex PCR).
- The results showed that although there were similarities in identifying L. crispatus between the two methods, there was a significant lack of agreement overall, particularly with L. acidophilus, which was found by biochemical tests but not at all by PCR.
- The study concludes that the biochemical method has limitations and reinforces the effectiveness of the molecular method (Multiplex PCR) for identifying vaginal lactobacilli, while also suggesting improvements to include more species like L. vaginalis and L. iners.
Background: The aim of the study was to compare the bone mineral density (BMD) of postmenopausal women who had used depot-medroxyprogesterone acetate (DMPA) or a copper intrauterine device (IUD) as a comparison group until menopause.
Study Design: BMD was measured using dual-energy X-ray absorptiometry at the nondominant forearm for up to 3 years following menopause in 135 women aged 43-58 years: 36 former DMPA users and 99 former IUD users.
Results: Mean duration of use was (mean+/-SEM) 9.
Background: Prostate-specific antigen (PSA) in vaginal fluid indicates exposure to semen, and was used to assess condom effectiveness, although validity and reliability have not been fully evaluated. Our objective was to compare PSA in self-collected samples with samples collected by a nurse.
Methods: We conducted two studies, each with 100 women aged 18-48 years.
Objective: To evaluate factors associated to presence of free RNA-HIV in the vagina.
Methods: Cross-sectional study with HIV-infected women, excluding those who had undergone hysterectomy, had used vaginal medication within the last 48 hours, had had unprotected sex less than 72 hours before, were pregnant, or had genital bleeding. After signing an informed consent, blood samples were obtained for T CD4 lymphocytes count and plasmatic viral load, in addition to cervico-vaginal lavage using 10 mL of sterile normal saline, later centrifuged, aliquoted and stored at - 70 degrees C to quantify free HIV-RNA.