منابع مشابه
September 2003 Science Selections
Background: Since 1994, Brazil has developed a primary care system based on multidisciplinary teams which include not only a physician and a nurse, but also 4–6 lay community health workers. This system now consists of 26,650 teams, covering 46% of the Brazilian population. Yet relatively few investigations have examined its effectiveness, especially in contrast with that of the traditional mul...
متن کاملScience Selections August 2003
Objectives: The aim of this study was to establish the prevalence of cervicovaginal infections in normal third-trimester pregnant women and evaluate the accuracy of clinical diagnosis. diagnosis was based on the characteristics of the vaginal discharge, and the etiological diagnosis was based on bacterioscopy of the vaginal secretion and direct immunofluorescence for Chlamydia trachomatis. The ...
متن کاملScience Selections May 2003
Money continues to be spent on observational studies attempting to link bacterial vaginosis (BV) to preterm delivery. Despite considerable financial investment, the results are at best confusing. Two recent studies address whether using oral metronidazole to treat pregnant women with BV reduces the incidence of preterm delivery. A well-conceived study by McDonald et al. examined treatment not o...
متن کاملScience Selections June 2003
Chlamydia trachomatis; infection; heat shock proteins hronic chlamydial infections have been documented in numerous works 1,z as silently evolving diseases. Evidence of resistance to antibiotic therapy, as demonstrated by positive cultures long after treatment in infertile women, 3,4 as well as positive chlamydial antigens or nucleic acids in culture-negative pelvic samples of infertile women s...
متن کاملScience Selections October 2003
Background: An important mechanism for gene regulation utilizes small non-coding RNAs called microRNAs (miRNAs). These small RNAs play important roles in tissue development, cell differentiation and proliferation, lipid and fat metabolism, stem cells, exocytosis, diseases and cancers. To date, relatively little is known about functions of miRNAs in the lung except lung cancer. Results: In this ...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 2003
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.111-a658a