18 resultados para Reproductive assisted techniques


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To assess the sociodemographic profile and gynecologic and obstetric characteristics of women referred to a public reference center in Campinas, Brazil, for in vitro fertilization (IVF). Women referred between April 1, 2008, and October 31, 2009, were eligible for inclusion in a cross-sectional study. Participants were interviewed about sociodemographic characteristics, obstetric and gynecologic history, and etiologic factors resulting in the referral. Preliminary clinical examinations performed elsewhere were evaluated. A total of 176 women were included, of whom 129 (73.3%) presented with tubal factor infertility. Tubal ligation had been performed in 66 (37.5%) women. Overall, 121 (68.8%) women were aged 30 years old or less, 110 (62.5%) had received more than 8 years of schooling, 123 (69.6%) had had infertility for up to 5 years, and 99 (56.3%) did not have any children. Moreover, 25 (14.2%) women had endometriosis and 25 (14.2%) had a male factor issue. A previous ectopic pregnancy was reported for 20 (11.4%) women and pelvic inflammatory disease for 49 (27.8%). Tubal factor infertility was the most common indication for IVF. Preventive measures are required, in addition to policies that ensure access to high-complexity treatments in the public sector.

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The importance of medicinal plants and their use in industrial applications is increasing worldwide, especially in Brazil. Phyllanthus species, popularly known as quebra-pedras in Brazil, are used in folk medicine for treating urinary infections and renal calculus. This paper reports an authenticity study, based on herbal drugs from Phyllanthus species, involving commercial and authentic samples using spectroscopic techniques: FT-IR, ¹H HR-MAS NMR and ¹H NMR in solution, combined with chemometric analysis. The spectroscopic techniques evaluated, coupled with chemometric methods, have great potential in the investigation of complex matrices. Furthermore, several metabolites were identified by the NMR techniques.

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This survey aimed at describing the interactions of floral visitors and Davilla kunthii A. St.-Hil. as well as characteristics of its reproductive biology in Itacoatiara, state of Amazonas, Brazil. Tests of the breeding system were performed. The guild of visitors was described according to richness, abundance, relative frequency and constancy. The breeding system tests indicated that D. kunthii is self-compatible. The pollination system was characterized as generalist, with 39 visitor species, from three different orders. Bees were the main group of pollinators, thus some behavioural aspects were described. Th e period of highest foraging activity was between 7 and 10 am. Some species presented agonistic and monopolistic behaviour. Given the behaviour and destructive potential, the Curculionidae seem to have a greater impact as seed predators than pollinators.