Reproductive Control Agents

生殖控制剂
  • 文章类型: Journal Article
    OBJECTIVE: To investigate whether intrauterine perfusion of hCG before embryo transfer (ET) is effective in women experienced two or more implantation failures.
    METHODS: Systematic review and meta-analysis. In the current meta-analysis, Pubmed, EMBASE and The Cochrane Library were searched for trials which compared the efficacy of intrauterine perfusion of hCG with no perfusion of hCG in women undergoing in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), or frozen embryo transfer (FET) before ET. The primary outcomes are the clinical pregnancy rate (CPR) and live birth rate (LBR).
    RESULTS: Six trials consisted of 1432 women were eligible for quantitative analysis. CPR (including 6 trials consisted of 1432 women) and LBR (including 3 trials consisted of 870 women) were significantly improved in the hCG group compared to the control group, with a CPR of 41.8 % vs. 31.2 % (RR 1.30, 95 % CI 1.14∼1.50, P < .001), an LBR of 27.8 % vs. 18.0 % (RR 1.52, 95 % CI 1.18∼1.96, P = .001).
    CONCLUSIONS: Intrauterine perfusion of hCG is effective in improving clinical pregnancy rate and live birth rate in women who experienced two or more implantation failures, which might provide a potential therapeutical intervention for recurrent implantation failure (RIF). Although promising, further evidence from multicenter, randomized controlled trials are needed to confirm the conclusion from the current meta-analysis.
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  • 文章类型: Case Reports
    Despite the fact that menstrual psychosis has been described since the eighteenth century, there are only about 80 cases reported in the literature. The knowledge and awareness about the disorder remain poor, leading to inaccurate diagnoses and suboptimal treatment. This is the case of a 25-year-old woman with recurrent hospitalizations for mental status changes including psychotic phenomena and catatonia that appeared to follow a cyclical pattern that correlated with her menstrual periods, with complete symptom resolution and return to her usual level of functioning between episodes despite continued treatment with antipsychotic medications. This pattern remitted only after hormonal therapy was initiated. Through this case report, the authors review the literature on the menstrual psychoses, exemplified by this case, and discuss treatment options and prognosis. Menstrual psychosis is an underrecognized condition where psychotic symptoms recur cyclically with menses. Given the poor response that this entity shows to antipsychotic treatment, hormonal therapies have a prominent role.
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  • 文章类型: Journal Article
    In this systematic review and meta-analysis, the effect of intrauterine HCG infusion before embryo transfer on IVF outcomes (live birth rate, clinical pregnancy rate and spontaneous aboretion rate) was investigated. Searches were conducted on MEDLINE, EMBASE and The Cochrane Library. Randomized studies in women undergoing IVF and intracytoplasmic sperm injection comparing intrauterine HCG administration at embryo transfer compared with no intrauterine HCG were eligible for inclusion. Eight randomized controlled trials were eligible for inclusion in the meta-analysis. A total of 3087 women undergoing IVF and intracytoplasmic sperm injection cycles were enrolled (intrauterine HCG group: n = 1614; control group: n = 1473). No significant difference was found in the live birth rate (RR 1.13; 95% CI 0.84 to 1.53) and spontaneous abortion rate (RR 1.00, 95% CI 0.74 to 1.34) between women who received intrauterine HCG and those who did not receive HCG. Although this review was extensive and included randomized controlled trials, no significant heterogeneity was found, and the overall included numbers are relatively small. In conclusion the current evidence does not support the use of intrauterine HCG administration before embryo transfer. Well-designed multicentre trials are needed to provide robust evidence.
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  • 文章类型: Journal Article
    BACKGROUND: Traditional Chinese medicine has been widely used for the treatment of recurrent miscarriage in China and other Asian countries for long time. We conducted this review to systematically summarize the evidences of Chinese herbal medicine (CHM) for the prevention and treatment of recurrent miscarriage in randomized trials, and evaluate the effectiveness and safety of CHM compared with placebo or conventional medicine.
    METHODS: We searched studies in PubMed, ClinicalTrials, the Cochrane Library, CNKI, SinoMed and VIP databases until December, 2012. Randomized trials on CHM alone or in combination with conventional medicine for recurrent miscarriage compared with placebo or conventional medicine were included. We evaluated the methodological quality of each included trials using the Cochrane risk of bias tool.
    RESULTS: A total of 41 RCTs (3660 participants) were included. The majority of trials had a high or unclear risk of bias. CHM used alone or plus progesterone-based treatment showed superior effect over progesterone-based treatment in improving live birth rate and embryonic developmental state (measured by B ultrasound). However, there is substantial heterogeneity within each subgroup analysis (I2 ranging from 35% to 71%). CHM plus progesterone and hCG-based treatment was superior to progesterone and hCG-based treatment in improving the embryonic developmental state, but not live birth rate. No severe adverse events were reported in relation to CHM.
    CONCLUSIONS: Some Chinese herbal medicines or in combination with progesterone-based treatment demonstrated potentially beneficial effect in improving live birth rate and embryonic developmental state for women with recurrent miscarriage. However, due to the substantial heterogeneity among the herbal interventions and limitations of methodological quality of the included trials, it is not possible to recommend any specific CHMs for recurrent miscarriage. Further rigorous clinical trials are warranted to evaluate the efficacy and safety of CHM.
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  • 文章类型: Journal Article
    OBJECTIVE: To assess the efficacy and safety of hCG to induce follicular stimulation.
    METHODS: Systematic literature searches of PubMed, EMBASE, CENTRAL, and SciSearch databases. Randomized controlled trials (RCTs) using hCG in early or late follicular phases were included.
    METHODS: Three reproductive medicine services of gynecology in Spain and two universities.
    METHODS: A total of 1,068 women treated in 11 RCTs were included.
    METHODS: Use of hCG versus other hormone treatments, no administration, or placebo during the period of follicular stimulation.
    METHODS: Live birth, clinical pregnancy, mature oocytes, miscarriage, ovarian hyperstimulation syndrome (OHSS), and FSH doses.
    RESULTS: No differences in live birth, miscarriage, and OHSS rates between hCG (given at either the early or late follicular phases) and different control regimens were found. Pooled analysis for clinical pregnancy showed significant differences in favor of hCG at the late follicular phase. The doses of FSH were lower in women treated with hCG at either the early or late follicular phase than in those treated with FSH alone.
    CONCLUSIONS: The use of hCG in the early and late follicular phase in controlled ovarian stimulation has the advantage of decreasing the doses of FSH.
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  • 文章类型: Comment
    暂无摘要。
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  • DOI:
    文章类型: Journal Article
    目的:评估短期副作用,智利奎纳克林灭菌(QS)的长期风险和疗效。
    方法:回顾自1977年以来2,592例经2或3例经宫颈插入252mg奎纳克林作为颗粒进行灭菌的经验;回顾智利对宫颈的临床前经验和流行病学研究,子宫内膜癌和其他癌症。
    结果:在2,592名接受QS的女性中,妊娠总数为119例(4.6%);59例(49.5%)足月妊娠,无与QS相关的出生缺陷.9例为异位妊娠。每1000名妇女年的异位妊娠风险为0.41,与手术绝育相似。10岁时每100名妇女的累积寿命表怀孕率从5.2到6.9不等。13.5%的奎纳克林宫内插入报告有轻度和短暂的副作用,4例(0.15%)诊断为盆腔炎。奎纳克林灭菌患者的长期随访显示宫颈风险没有增加,子宫内膜或其他癌症。
    结论:QS在10年的疗效与广泛接受的输卵管夹和单点双极电凝腹腔镜手术相当。QS严重风险低,立即的副作用。使用25年后尚未发现长期风险。
    OBJECTIVE: To assess short-term side effects, long-term risks and efficacy of quinacrine sterilization (QS) in Chile.
    METHODS: Review experience of 2,592 cases sterilized with 2 or 3 transcervical insertions of 252 mg quinacrine as pellets since 1977; review the Chilean pre-clinical experience and epidemiological studies on cervical, endometrial and other cancers.
    RESULTS: Among 2,592 women who underwent QS, the total number of pregnancies was 119 (4.6%); 59 (49.5%) were carried to term with no birth defects related to QS. Nine cases were ectopic pregnancies. The ectopic pregnancy risk per 1,000 woman-years was 0.41, similar to that for surgical sterilization. The cumulative life-table pregnancy rates per 100 women at 10 years varied from 5.2 to 6.9. Mild and transient side effects were reported in 13.5% of quinacrine intrauterine insertions and pelvic inflammatory disease was diagnosed in 4 cases (0.15%). Long-term follow-up of quinacrine-sterilized patients shows no increased risk of cervical, endometrial or other cancer.
    CONCLUSIONS: QS efficacy at 10 years is comparable to widely accepted tubal clip and single point bipolar electrocoagulation laparoscopic procedures. QS has a low risk of serious, immediate side effects. No long-term risks have been identified after 25 years of use.
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  • DOI:
    文章类型: English Abstract
    已发现长期使用大麻会引起生理变化,从而改变个体的生殖潜力。大麻的影响取决于剂量,可能包括因呼吸系统抑郁症而死亡。然而,长期影响尤其难以评估。大麻吸收迅速,消除非常缓慢。积极的原则,δ-9-四氢大麻酚(δ-9-THC),是高度脂溶性的,并固定在血清蛋白上,传递到肺和肝脏进行代谢,传递到肾脏和肝脏进行排泄。和雌激素一样,有一个肝肠回路的重吸收和消除。90%在粪便中被消除,65%在48小时内。由于肝肠回路和脂溶性,淘汰需要1周才能完成。活性成分的另一个重要生物转化是羟基化;羟基化衍生物负责大麻的精神活性。大麻影响神经内分泌功能和生殖细胞。对实验动物的研究表明,THC可以导致垂体激素促卵泡激素的下降,黄体生成素,和催乳素,在类固醇孕酮中,雌激素,和雄激素。人体研究表明,慢性使用者的血清睾酮水平降低。因为类固醇生成可以被人绒毛膜促性腺激素再刺激,似乎THC不会直接影响黄体的类固醇产生,但它的作用是由下丘脑介导的。由于其强大的抗促性腺激素作用,THC正在研究作为无排卵剂。相同的动物研究表明,排卵在停止使用后6个月恢复正常。在每周至少3次吸食大麻的妇女中观察到高的无排卵率和黄体功能不全。THC积聚在牛奶中。动物研究表明,THC会抑制泌乳所需的酶,并导致乳腺体积减少。在最近的研究中,在母乳和新生儿血液中都检测到了大量的药物。动物研究表明THC穿过胎盘,在胎儿中达到与母亲一样高的浓度。动物研究还表明,堕胎的频率越来越高,宫内死亡,胎儿体重下降。这些影响可能是由于胎盘功能的改变。一项人体研究同样表明,怀孕期间吸食大麻与胎儿发育不良显著相关,低出生体重,尺寸缩小,头围减少。在暴露于THC的实验动物中观察到先天性畸形。在慢性大麻使用者中观察到精子体积和数量下降以及精子活力异常。体外研究表明,THC会导致人类精子明显变性。
    Longterm use of marijuana has been found to cause physiological changes that can alter individual reproductive potential. The effects of marijuana depend on the dose and can include death from depression of the respiratory system. Longterm effects are however particularly hard to assess. Marijuana is absorbed rapidly and eliminated very slowly. The active principle, delta-9-tetrahidrocannabinol (delta-9-THC), is highly liposoluble and fixes to the serum proteins, passing to the lungs and liver for metabolization and to the kidneys and liver for excretion. As with estrogens, there is an enterohepatic circuit for reabsorption and elimination. 90% is eliminated in the feces, 65% within 48 hours. Because of the enterohepatic circuit and liposolubility, elimination requires 1 week for completion. The other important biotransformation of the active principle is hydroxilation; the hydroxilated derivatives are responsible for the psychoactivity of cannabis. Cannabis affects both neuroendocrine function and the germ cells. Studies on experimental animals have indicated that THC can cause a decline in the pituitary hormones follicle stimulating hormone, luteinizing hormone, and prolactin, and in the steroids progesterone, estrogen, and androgens. Human studies have shown that chronic users have decreased levels of serum testosterone. Because steroidogenesis can be restimulated with human chorionic gonadotropin, it appears that THC does not directly affect steroid production by the corpus luteum, but that its action is mediated by the hypothalamus. Because of its potent antigonadotropic action, THC is under study as an anovulatory agent. The same animal studies have shown that ovulation returns to normal 6 months after termination of use. High rates of anovulation and luteal insufficiency have been observed in women smoking marijuana at least 3 times weekly. THC accumulates in the milk. Animal studies have shown that THC depresses the enzymes necessary for lactation and causes a diminution in the volume of the mammary glands. In recent studies, significant amounts of the drug have been detected in both mothers\' milk and the blood of newborns. Animal studies indicate that THC crosses the placenta, achieving concentrations in the fetus as high as those in the mother. Animal studies also demonstrated increasing frequency of abortions, intrauterine death, and declines in fetal weight. The effects were probably due to an alteration in placental function. A human study likewise showed that marijuana use during pregnancy was significantly related to poor fetal development, low birth weight, diminished size, and decreased cephalic circumference. Congenital malformations have been observed in experimental animals exposed to THC. Declines in sperm volume and count and abnormal sperm motility have been observed in chronic marijuana users. In vitro studies show that THC produces a marked degeneration of human sperm.
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  • DOI:
    文章类型: Journal Article
    This report summarizes research supported by the Program for Applied Research on Fertility Regulation (PARFR) to develop a long-acting, injectable, biodegradable miscrosphere delivery system for norethisterone (NET). This delivery system consists of microspheres composed of a biodegradable polymer and NET. The polymer 1st evaluated for making NET microspheres was dl-polylactic acid (PLA). This prototype system was tested in clinical trials involving 63 women at 3 centers. The results of these studies indicated that PLA microspheres are capable of delivering NET continously for about 6 months. The duration of ovarian suppression was dose dependent with a given microsphere formulation and size limit. The average number of bleeding and spotting days decreased with increasing time from injection. Up to 12 months was required for the PLA microspheres to completely degrade, however, and there was concern that repeated injections at 6-month intervals might allow an undesirable build-up of PLA in muscle tissues. Research efforts then centered on developing a polymer formulation that offered better synchronization between duration of NET release and biodegradation of the polymer. In the 2nd generation formulation, polyglycolic acid (PGA) was incorporated to achieve faster biodegradation. Phase II studies were based on a formulation that demonstrated improvements in the manufacturing process, pharmacokinetics of the NET microspheres, biodegradation kinetics of the polymer, and injectability. More precise control of release has been obtained, the drug loading and size distribution of the microspheres have been optimized, and the molar ratios of PLA and PGA have been changed. Although Phase II studies are still in progress, higher NET-loaded microspheres have been shown to product substantially faster release rates during the 1st 30 days post-treatment. In addition, increasing the NET concentration to 50% substantially improved formulation injectability. Few obstacles to eventual approval and widescale use of this injectable contraceptive system are anticipated. Studies are currently underway to provide better bleeding control.
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  • DOI:
    文章类型: Journal Article
    口服避孕药(OCA)已经使用了二十多年,而目前,1.5亿至2亿妇女正在使用这些制剂。除了他们的妇科影响,激素已被证明会影响许多代谢和营养过程,一些有利的和其他不利的。对食用OCA的女性营养状况的担忧促使了这项审查。研究了八种维生素和三种矿物质。避孕类固醇的摄入被证明会降低六种营养素的生理水平(核黄素,吡哆醇,叶酸,维生素B12,抗坏血酸和锌),提高其他三种物质的水平(维生素K,铁和铜),并且一种(α生育酚)几乎没有变化,而另一种(维生素A)则有疑问。结论是,食用OCA的女性应特别注意维生素和矿物质的摄入,如果有必要,消耗所需营养的生理补充剂。
    评估关于OCs(口服避孕药)和矿物质代谢的影响的知识状态。文献综述表明,OCs降低了维生素B2或核黄素的水平,维生素B6或吡哆醇,叶酸,维生素B12,维生素C,或者抗坏血酸,锌和提高维生素K的水平,铜,和铁。摄入OCs对维生素E的影响很小,或者α-生育酚.关于摄入OC对维生素A的影响的研究结果是模糊的。OC使用者的血清维生素A水平比非使用者高50%-80%;然而,OC使用者可能比非使用者更需要维生素A。OC使用者对核黄素的需求也可能更高。OC使用者需要更多的吡哆醇,需要核黄素将磷酸吡哆醇氧化为磷酸吡哆醛。大多数研究支持使用OC导致维生素B6缺乏的论点。使用OCs6个月或更长时间的所有女性中约有80%经历了异常的色氨酸代谢。为了纠正这个问题,每天25毫克,或正常每日需求的12倍,是需要的。一些研究人员建议给女性服用这种剂量,经历色氨酸代谢异常的人,而其他人则警告说,这种高剂量的长期影响是未知的。大多数调查人员建议OC用户,维生素B12或维生素C缺乏,应该补充维生素。
    Oral contraceptives agents (OCA) have been in use for more than two decades, and at the present time, 150 to 200 million women are using the preparations. Apart from their gynecologic influence, the hormones have been shown to affect a number of metabolic and nutritional processes, some advantageously and others disadvantageously. Concern over the nutritional status of females consuming OCA prompted this review. Eight vitamins and three minerals were investigated. Contraceptive steroid ingestion was shown to depress the physiologic levels of six nutrients (riboflavin, pyridoxine, folacin, vitamin B12, ascorbic acid and zinc), elevate the levels of three others (vitamin K, iron and copper) and provide little or no change in one (alpha tocopherol) and questionable increases in another (vitamin A). It was concluded that females consuming OCA should pay particular attention to vitamin and mineral intake and, if warranted, consume physiologic supplements of needed nutrients.
    The state of knowledge concerning the effects of OCs (oral contraceptives) and mineral metabolism is assessed. A review of the literature indicates that OCs depress the levels of Vitamin B2, or riboflavin, Vitamin B6, or pyridoxine, folacin, Vitamin B12, Vitamin C, or ascorbic acid, zinc and elevate levels of Vitamin K, copper, and iron. The ingestion of OCs produces little effect on Vitamin E, or alpha tocopherol. Findings on the effects of OC ingestion on Vitamin A are ambiguous. OC users have 50%-80% higher serum levels of Vitamin A than nonusers; however, OC users may have a greater need for Vitamin A than nonusers. The need for riboflavin may also be higher for OC users. OC users need more pyridoxine and riboflavin is needed to oxidize pyridoxine phosphate to pyridoxal phosphate. Most studies support the contention that OC usage leads to a deficiency of Vitamin B6. Approximately 80% of all women using OCs for 6 or more months experience abnormal typtophan metabolism. In order to correct this problem, 25 mg daily, or 12 times the normal daily requirement, is needed. Some investigators recommend givng this dosage to women, who experience abnormal tryptophan metabolism, while others warn that the long-term effects of such high dosages are unknown. Most investigators recommend that OC users, with Vitamin B12 or Vitamin C deficiencies, should be given supplementary vitamins.
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