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Many women find the idea of a once-a-month contraceptive pill an attractive concept. Mifepristone has been shown to be effective as a contraceptive if administered in the early luteal phase. We tested the contraceptive efficacy of 200 mg of mifepristone on day luteinizing hormone (LH) + 2 in a group of 32 women who used a fertility monitor to identify the LH surge. We also recruited a control group, comprising 20 women who were trying to conceive. In this group, 12 women conceived during a total of 50 control cycles (probability of pregnancy 0.25-0.32). Women in the treatment group contributed to a total of 178 cycles and there were two pregnancies (probability of pregnancy 0.01). An LH surge was not detected in 34 cycles (19.1%). In 20 cycles (11.2%) this was due to imperfect use while 14 were monitor method failures (7.9%). Treatment with mifepristone in the early luteal phase did not disrupt the cycle length but women reported slight vaginal bleeding in 15% of the cycles. The combination of a home-use fertility monitor with once-a-month administration of mifepristone (especially if mifepristone is administered at the early luteal phase) is an acceptable contraceptive option with minimal side effects. Unfortunately, it is difficult to envisage how an easier way of defining the correct timing, which required less compliance, could be devised. 相似文献
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Furedi A 《Human reproduction update》1999,5(6):621-626
The warning issued by the UK Committee on Safety Medicines in October 1995, followed by their 'Dear Doctor' letter of October 18, 1995, that oral contraceptive pills containing gestodene or desogestrel were associated with a higher risk of venous thromboembolism has had a negative impact on public heath. A significant number of women either switched brands or ceased contraception altogether following the announcement. National data suggest a strong association between the pill scare and a substantial increase in the number of unintended pregnancies, particularly significant among younger women, with use of oral contraception falling from 40 to 27% of under 16s between 1995-1996 and 1996-1997. The resulting cost of the increase in births and abortions to the National Health Service has been estimated at about Pound Sterling 21 million for maternity care and from Pound Sterling 46 million for abortion provision. The level of risk should, in future, be more carefully assessed and advice more carefully presented in the interests of public health. 相似文献
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The relatively short history of hormonal contraception has been marked by a series of 'pill scares', all of which--after creating panic among users--were proven to be unfounded in terms of public health impact. The latest pill scare, provoked by regulatory action in the United Kingdom and the Federal Republic of Germany in response to the publication of a series of articles indicating a doubling of risk of deep venous thrombosis in users of oral contraceptives containing third-generation progestins, seems finally settled: both the British and the German Drug Regulatory Authorities have now reverted their verdict. The damage unfortunately stays: hundreds of thousands of women have been compelled to abandon the pill of their choice, often deciding to drop contraception altogether, thereby exposing themselves to unwanted pregnancy and--in a number of cases--to pregnancy termination. This latest episode should be turned into something positive: we need to learn that, in the case of drugs in widespread use, before restrictive action is taken--and except for very rare and specific instances--the scientific community must carry out an exhaustive debate on the reality and importance of the observed effects. Although the public should, in each instance, be properly informed, it is only after this process has been completed that restrictive action should be taken. It is hoped that, after this last episode, all concerned have learned this simple principle and will accept being guided by it from now on. 相似文献
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御感速袋泡剂按新药审评标准进行了质量标准的研究,鉴别项下除建立了显微方法外还建立了柴胡皂甙a,d,连翘甙,葛根素,青蒿的薄层鉴别方法。用HPLC对黄芩甙和葛根素进行了含量测定。 相似文献
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本研究将180名已婚、一孩、年龄33±5岁,需要使用避孕措施的健康妇女随机分成6组,即IUD组、绞股蓝总甙加IUD组、1号OC片组、40mg、60mg、80mg绞股蓝总甙分别与1号OC片复合的3个试验组.用双盲法给药,连续服用6个月观察脂类代谢和血压的变化.结果显示:以IUD组和1号OC片组的数据为参比值.服用不同剂量绞股蓝总甙复合口服避孕药后无升高TG和TC的趋势,有显著升高HDL-C作用和使APOA_1水平上升的趋势;亦存在降低收缩压的趋势,对舒张压无明显影响,但在服药后3个月时HDL-C水平曾发生暂时性下降. 相似文献
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Objective To observe clinical effect of treating pelvic effusion with twenty five tastes podophyllum pill combined with antibiotics, microwave. Methods 182 cases patients with inflammatory pelvic effusion were randomly divided into two groups. The treatment group was treated with twenty five tastes podophyllum pill combined with antibiotics、microwave, and the control group was treated with antibiotics combined with microwave. The absorption, symptoms disappeared and cure situations of pelvic effusion were observed between control group and treatment group after treatment.Results The complete absorption, symptoms disappeared and cure situations of pelvic effusion in the treatment group was significantly higher than that of the control. The total effective rate of the treatment group was 100%, and the total effective rate of the control group was 87.5%, which has a significant difference (P<0.05) .Conclusion The treatment of twenty five tastes podophyllum pill combined with antibiotics, microwave on pelvic effusion is better than western medicine. 相似文献
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目的研究金匮实脾法对实验性肝纤维化大鼠胶原纤维合成与降解的影响。方法采用四氯化碳实验性肝纤维化模型,用金匮实脾法代表方鳖甲煎丸口服液治疗干预,与γ-干扰素对照;测定肝功能、血清透明质酸,并通过光镜观察肝组织病理变化和纤维化程度,用苦味酸-天狼红染色和氨银-Masson网织纤维染色观察Ⅰ、Ⅲ型胶原,免疫组织化学法检测Ⅳ型胶原及组织金属蛋白酶抑制因子1(TIMP-1)的表达。结果鳖甲煎丸口服液组与模型组比较,可改善肝功能指标,显著降低血清透明质酸;明显改善Ⅰ、Ⅲ、Ⅳ型胶原纤维增生,减少TIMP-1表达。结论金匮实脾法可通过改善胶原纤维的增生起到抗肝纤维化作用。 相似文献
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Amaury Léis Dal Fabbro 《生殖与避孕(英文版)》2006,17(2):89-96
Objective To know the characteristics of contraceptive use in Sao Paulo State collected by the Demographic and Health Survey (DHS) conducted in 1996.
Methods Data of Sao Paulo in 1996 were analyzed compared with the previous DHS carried on in 1986focusing on Sao Paulo State. Contraceptive use among married or cohabiting women by age, number of children and schooling was closely examined. Age and timing of female sterilization were also analyzed.
Results The results showed that unlike Brazil there was a stability of female sterilization in Sao Paulo State during 1986 and 1996. There was a pattern in Sao Paulo: up to 30 years old the pill was the most used contraceptive, after 30 there was a predominance of female sterilization, which increased with the number of children and decreased with schooling. The use of male methods had also increased in the 1986 and 1996 period, being greater in Sao Paulo than in Brazil. Sao Paulo also presented more diversity in the use of reversible contraceptives.
Conclusions The predominant two contraceptive methods in Brazil and Sao Paulo changed from 1986 to 1996, i.e..from pill to female sterilization. 相似文献