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Purpose: Although benefit/risk analysis is usually undertaken prior to starting a treatment, some conditions will inevitably require the use of drugs with known side effects even during pregnancy. This is the case with dexamethasone use in ante natal care. The purpose of this review was to provide an overview of the uses of dexamethasone and its impacts on pregnancy and fertility in humans. Data source: The review is based on literature searches using PubMed and MeSH and authors' personal manuscript/abstract files and citations of known references. Study selection: The selection of articles reflects the authors' opinion as to originality and importance in the context of the review. The review included human and some aspects of animal study.Data extraction: The electronic searches were scrutinized and full manuscripts of all quotes considered relevant to the study were obtained. All the articles whose abstracts were not available were excluded.Results: Dexamethasone use has evolved over the years to include fertility treatment in both males and females in addition to its use in pregnancy to prevent respiratory distress syndrome in neonates despite its side effects due to the fact that its benefits outweigh the risks. Conclusions: Dexamethasone use has evolved over the years to include fertility treatment in addition to use in the prevention of respiratory distress syndrome. Low doses have no major adverse effects; however, repeated doses and long-term therapy are associated with more serious sequelae. It is recommended that dexamethasone therapy be incorporated into maternal and neonatal health care services
Assuntos
Fertilidade , Nigéria , Gravidez , Doenças RespiratóriasRESUMO
This study investigated the effects of administration of monosodium L-glutamate (MSG) on serum gonadotrophin-releasing hormone (GnRH), luteinising hormone (LH), testosterone and total cholesterol (TC), cauda epididymal sperm reserves (CESR) and testicular histomorphology of adult male albino rats. Eighty-four rats, randomly assigned to 7 groups of 12 rats each, were used for the study. Varying low doses (0.25, 0.50 or 1.00 g/kg body weight) of MSG were administered orally or subcutaneously at 48-h intervals for six weeks. Serum GnRH, LH, testosterone and TC, and CESR were evaluated on days 14, 28 and 42 of MSG administration. Testicular histomorphology was evaluated on day 42. The results showed that the mean serum GnRH, LH and testosterone levels, and the CESR of all the treated groups were significantly (P < 0.05) lower than those of the untreated control on days 14, 28 and 42 of MSG administration. The mean serum TC levels of all the treated groups were also significantly (P < 0.05) lower than those of the control group on days 14 and 28. No lesions were observed on sections of the testes. It was concluded that MSG administration for 14, 28 and 42 days led to significantly lower serum levels of GnRH, LH, testosterone and TC, and significantly lower CESR.
RESUMO
BACKGROUND: Despite the availability of modern (orthodox) medicine, many developing countries, especially in the rural areas, still rely heavily on traditional healers and medicinal plants to meet their primary health care needs and that of their domestic animals. This has been attributed to easy accessibility and low cost of herbal medicine. In Eastern Nigeria, fresh leaves of Spondias mombin is widely used by the natives to aid delivery and to expel the placenta in small ruminants (sheep and goats), especially during difficult labour. OBJECTIVE: The present study was designed to evaluate the in vivo effects of leaf extracts of S. mombin on reproductive performance of female rats. METHODS: Acute toxicity test of the plant extract was carried out in rats of both sexes. The anticonceptive and abortifacient activity of the extract were investigated, including the Fertility Index or embryo score of control and treated animals. The estrogenic activity was determined using ovariectomized rats. RESULTS: The results revealed a relatively non-toxic plant extract. The extract displayed anticonceptive but not abortifacient activity as judged by the number of pregnant animals at the end of the third trimester of pregnancy. The extract did not exhibit any oestrogenic activity. CONCLUSION: Aqueous ethanol leaf extract of S. mombin has significant anticonceptive activity attributed to a direct action of the extract on the uterus.
