Medroxyprogesterone

甲羟孕酮
  • 文章类型: Journal Article
    目的:随机对照试验(RCT)证明药物干预恶病质在改善体重和食欲方面的益处。然而,没有比较的疗效和安全性。我们进行了系统评价和网络荟萃分析(NMA),以评估药物干预治疗恶病质的相对有效性和安全性。
    方法:PubMed,Embase,科克伦,和ClinicalTrials.gov搜索RCT,直到2019年10月。主要结果是总体重(TBW)改善,食欲(APP)评分和严重不良事件。两名评审员独立提取数据并评估偏倚风险。在8周时进行NMA以估计体重增加和APP评分增加,以平均差(MD)或标准化MD表示,95%CI。
    结果:包括80例RCTs(10579例)和12种治疗方法。大多数是癌症患者(7220)。与安慰剂相比,皮质类固醇,大剂量醋酸甲地孕酮组合(Megace_H_Com)(≥400mg/天),甲羟孕酮,高剂量醋酸甲地孕酮(Megace_H)(≥400mg/天),生长素释放肽模拟物和雄激素类似物(雄激素)与TBW的MD为6.45(95%CI2.45至10.45)显着相关,4.29(95%CI2.23至6.35),3.18(95%CI0.94至5.41),2.66(95%CI1.47至3.85),1.73(95%CI0.27至3.20)和1.50(95%CI0.56至2.44)kg。为了改善食欲,Megace_H_Com,Megace_H和Androgen显著提高了标准化APP评分,与安慰剂相比。与安慰剂相比,所有干预措施的严重不良事件没有显着差异。
    结论:我们的研究结果表明,几种药物干预措施有可能在恶病质的治疗中提供益处,尤其是Megace_H和短期使用皮质类固醇。尽管如此,为了更好地管理恶病质,需要进行高质量的比较研究来比较安全性和有效性.
    OBJECTIVE: Randomised controlled trials (RCTs) demonstrated benefits of pharmacological interventions for cachexia in improving weight and appetite. However, comparative efficacy and safety are not available. We conducted a systematic review and network meta-analysis (NMA) to evaluate the relative efficacy and safety of pharmacological interventions for cachexia.
    METHODS: PubMed, EmBase, Cochrane, and ClinicalTrials.gov were searched for RCTs until October 2019. Key outcomes were total body weight (TBW) improvement, appetite (APP) score and serious adverse events. Two reviewers independently extracted data and assessed risk of bias. NMA was performed to estimate weight gain and APP score increase at 8 weeks, presented as mean difference (MD) or standardised MD with 95% CI.
    RESULTS: 80 RCTs (10 579 patients) with 12 treatments were included. Majority is patients with cancer (7220). Compared with placebo, corticosteroids, high-dose megestrol acetate combination (Megace_H_Com) (≥400 mg/day), medroxyprogesterone, high-dose megestrol acetate (Megace_H) (≥400 mg/day), ghrelin mimetic and androgen analogues (Androgen) were significantly associated with MD of TBW of 6.45 (95% CI 2.45 to 10.45), 4.29 (95% CI 2.23 to 6.35), 3.18 (95% CI 0.94 to 5.41), 2.66 (95% CI 1.47 to 3.85), 1.73 (95% CI 0.27 to 3.20) and 1.50 (95% CI 0.56 to 2.44) kg. For appetite improvement, Megace_H_Com, Megace_H and Androgen significantly improved standardised APP score, compared with placebo. There is no significant difference in serious adverse events from all interventions compared with placebo.
    CONCLUSIONS: Our findings suggest that several pharmacological interventions have potential to offer benefits in treatment of cachexia especially Megace_H and short-term use corticosteroids. Nonetheless, high-quality comparative studies to compare safety and efficacy are warranted for better management of cachexia.
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  • 文章类型: Journal Article
    年轻女性患高级别神经胶质瘤的风险较低,绝经后其发病率增加,表明女性荷尔蒙可能具有保护作用。激素替代疗法(HRT)被广泛用于治疗骨质疏松症,一些流行病学研究表明,包括孕酮类似物如醋酸甲羟孕酮(MPA)在内的HRT方案可降低神经胶质肿瘤的风险。替勃龙是HRT中使用的独特孕酮类似物,具有组织特异性雌激素作用,并刺激与MPA诱导的基因表达非常相似的基因表达。替勃龙的促雌激素作用尤其发生在骨骼和大脑中,MPA和替勃龙均抑制AKR1C酶,涉及替莫唑胺化学耐药。因此,我们的目的是调查MPA之间的相互作用,替勃龙和替莫唑胺修饰神经胶质瘤细胞生长和精细结构。
    对于我们的研究,由于以下几个原因,我们特别选择了C6大鼠神经胶质瘤细胞系:i)我们先前表明MPA降低了C6细胞的生长并诱导了丙卡巴嗪敏化;ii)替莫唑胺具有类似丙卡巴嗪的三氮烯型分子结构;iii)其他小组先前表明C6神经胶质瘤细胞系比人神经胶质瘤细胞对替莫唑胺的抗性更强;因此,它可能提供了天然的化学抗性模型。单层电镀功效,软琼脂菌落生长,进行了3D球状体S相(通过BrdU标记确定)和电子显微镜分析,以评估MPA之间的相互作用,替勃龙和替莫唑胺。
    MPA抑制C6神经胶质瘤的克隆生长,替勃龙和替莫唑胺都增强了这种作用。MPA和替勃龙将C6神经胶质瘤球体中的DNA合成抑制至相似的水平,这可以用替莫唑胺实现。电子显微镜分析揭示了MPA之间的协同作用,替勃龙和替莫唑胺参与线粒体增殖,冷凝,线粒体自噬和自噬。
    MPA和替勃龙将在体外和体内胶质母细胞瘤的进一步实验模型中进行研究。
    Risk of high grade gliomas is lower in young females and its incidence enhances after menopause suggesting likely protective roles of female hormones. Hormone replacement therapy (HRT) was widely employed to treat osteoporosis and some epidemiological studies showed that HRT regimes including progesterone analogs such as medroxyprogesterone acetate (MPA) decreased risk of glial tumors. Tibolone is a unique progesterone analog employed in HRT with tissue specific estrogenic effects and stimulates gene expressions very similar to those induced by MPA. Tibolone\'s pro-estrogenic effects occur particularly in bone and brain and both MPA and tibolone inhibit AKR1C enzymes, which involve in temozolomide chemoresistance. Hence, we aimed to investigate interactions between MPA, tibolone and temozolomide in modification of glioma cell growth and fine structure.
    For our studies, we have particularly chosen C6 rat glioma cell line due to several reasons: i) We previously showed that MPA reduced growth and induced procarbazine-sensitization in C6 cells; ii) temozolomide has a triazene-type molecular structure like procarbazine; iii) other groups previously showed that C6 glioma cell line is more resistant to temozolomide than human glioma cells; hence it may provide a native model of chemoresistance. Monolayer plating efficacy, soft agar colony growth, 3D-spheroid S-phase (as determined by BrdU-labeling) and electron microscopical analyses were performed to assess mutual interactions between MPA, tibolone and temozolomide.
    MPA inhibited clonogenic growth of C6 glioma and this effect is augmented by both tibolone and temozolomide. MPA and tibolone inhibited DNA synthesis in C6 glioma spheroids to similar levels which can be achieved with temozolomide. Electron microscopical analyses revealed synergisms between MPA, tibolone and temozolomide involved mitochondrial proliferation, condensation, mitophagy and autophagy.
    MPA and tibolone shall be studied in further experimental models of glioblastoma in vitro and in vivo.
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    文章类型: Journal Article
    OBJECTIVE: As the HIV/AIDS epidemic continues to spread in Africa and Asia, use of the injectable contraceptive steroid DMPA is widespread and has been increasing. Since studies dating back to 1992 have suggested that DMPA may increase the transmission of HIV to women, we endeavored to determine if the extant epidemiological and biological evidence is sufficient to conclude that DMPA use constitutes a definite hazard to women\'s health.
    METHODS: We searched Medline using the search terms: contraceptives or contraception AND HIV and searched bibliographies of articles thus identified. We included in the meta-analysis all studies examining the association between use of DMPA (or injectable contraceptives comprising mostly DMPA) and the presence (cross-sectional studies, n = 8) or acquisition (longitudinal studies, n = 16) of HIV+ status in women, using a random effects models to estimate odds ratios (ORs; cross-sectional studies) and hazard ratios (HRs; longitudinal studies). Studies were excluded if the comparison group included women using any form of steroidal contraception.
    RESULTS: Statistically significant positive associations between DMPA use and HIV positivity were observed both in cross-sectional (OR = 1.41, 95% CI 1.15 - 1.73) and longitudinal studies (HR = 1.49, 95% CI 1.28 - 1.73). The biological plausibility of increased vulnerability to HIV infection due to progestational action (via thinning of the vaginal epithelial barrier and immunosuppression) as well as glucocorticoid agonistic immunosuppression, are discussed.
    CONCLUSIONS: The epidemiological and biological evidence now make a compelling case that DMPA adds significantly to the risk of male-to-female HIV transmission.
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    文章类型: Case Reports
    BACKGROUND: Adenosarcomas are rare tumors usually derived from the endometrium. About 50 cases of adenosarcomas of the ovary have been reported. The relationship between adenosarcoma and CA125 has not been described. The authors present a case of adenosarcoma with elevated CA125 because of the unusual presentation of this pathology and also because elevation of the CA125 antigen has not been reported in the literature.
    METHODS: A 42-year-old woman presented for consultation for incidental right ovarian tumor and CA125 of 1100 U/mL. Histology revealed a homologous Müllerian adenosarcoma of the right ovary with sarcomatous overgrowth. CA125 decreased to 16 U/mL after surgery. Sixteen months post-surgery, the patient is disease free and with normal CA125.
    CONCLUSIONS: Ovarian adenosarcomas are more aggressive than adenosarcomas of the uterus. Because of the embryological origin, ovarian adenosarcomas are able to produce CA125 antigen, especially in the presence of sarcomatous overgrowth. With these facts, CA125 antigen may be useful as a prognostic factor because it may represent an indirect marker of sarcomatous overgrowth.
    CONCLUSIONS: CA125 may be useful for follow-up of ovarian adenosarcomas. Elevated CA125 antigen in adenosarcomas of the ovary may be indicative of sarcomatous overgrowth and poor prognosis.
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  • 文章类型: Journal Article
    美国有超过1600万女性服用口服激素避孕药,然而,大约5%的人在使用的第一年经历了意外怀孕。遵守该方案对于维持周期控制和预防妊娠很重要。新的荷尔蒙避孕药,norelgestromin-乙炔雌二醇贴剂,依托孕烯-乙炔雌二醇阴道环,和甲羟孕酮-环戊酸雌二醇注射液,旨在提高依从性并减少不良反应,同时保持疗效。对于寻求传统口服避孕药替代品的女性或那些难以记住每天服用避孕药的女性来说,每一种都有潜在的优势。每个代理也可能有自己的缺点,包括应用现场反应,需要每月注射,和设备相关事件;然而,与目前的口服激素避孕药相比,所有避孕药的疗效和不良反应情况相似.
    Over 16 million women in the United States take oral hormonal contraceptives, yet approximately 5% experience an unintended pregnancy during the first year of use. Compliance with the regimen is important in maintaining cycle control and preventing pregnancy. New hormonal contraceptive agents, norelgestromin-ethinyl estradiol patch, etonogestrel-ethinyl estradiol vaginal ring, and medroxyprogesterone-estradiol cypionate injection, were designed to increase compliance and decrease adverse effects while maintaining efficacy. Each one has potential advantages for women seeking alternatives to traditional oral contraceptives or for those who have trouble remembering to take a daily pill. Each agent also may have its own disadvantages, including application site reactions, need for monthly injections, and device-related events; however, all have similar efficacy and adverse-effect profiles compared with current oral hormonal contraceptives.
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  • DOI:
    文章类型: Case Reports
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  • 文章类型: Journal Article
    慢性肺泡通气不足可能以阴险的方式存在,并具有非特异性表现。临床医生应该意识到在患有某些胸部和全身性疾病的患者中发生这种情况的可能性。一旦通过动脉血气分析证实慢性肺泡通气不足,系统的评估通常可以指出潜在的病因。由于受影响个体的睡眠通常与气体交换的明显恶化有关,并且还可能导致白天心肺功能障碍恶化。多导睡眠图通常用于确定夜间畸变的严重程度,并寻找共存的阻塞性睡眠呼吸暂停。慢性肺泡通气不足的治疗通常集中在消除夜间气体交换恶化,睡眠期间无创正压通气的最近应用已被证明对肥胖-低通气综合征患者的管理有用,限制性胸腔疾病,神经肌肉疾病和中心原因通气不足。目前尚不清楚夜间通气支持对慢性阻塞性肺疾病引起的慢性通气衰竭患者的广泛应用是否具有长期益处。
    Chronic alveolar hypoventilation may present in an insidious fashion with nonspecific manifestations. The clinician should be aware of the potential for developing this condition in patients with certain thoracic and systemic diseases. Once chronic alveolar hypoventilation is confirmed with arterial blood gas analysis, a systematic evaluation can often point to the underlying etiology. As sleep in affected individuals is often associated with marked worsening of gas exchange and may also contribute to worsening daytime cardiopulmonary dysfunction, polysomnography is often indicated to determine the severity of nocturnal aberrations and to look for coexistent obstructive sleep apnea. Therapy of chronic alveolar hypoventilation often focuses on elimination of the nocturnal deterioration in gas exchange, and recent applications of noninvasive positive pressure ventilation during sleep have proven useful in the management of individuals with obesity-hypoventilation syndrome, restrictive thoracic disorders, neuromuscular diseases and central causes for hypoventilation. It is unclear whether wide-spread application of nocturnal ventilatory support to patients with chronic ventilatory failure due to chronic obstructive pulmonary disease is of long-term benefit.
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    文章类型: Case Reports
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  • 文章类型: Journal Article
    在13种不同组织学类型的恶性和20种良性卵巢肿瘤中测定了ER和PR。ER在67%的恶性肿瘤中检测到,PR在40%的恶性肿瘤中检测到,与良性肿瘤的35%和45%相比,分别。恶性病变中的ER浓度稍高,但PR水平没有差异。回顾了39个不同病理分期和分类的原发性卵巢肿瘤,术后用醋酸甲羟孕酮治疗(MPA,Depo-Provera,UpJohn)和大多数情况下的Melphalan,显示出较高的Karnofsky性能指数以及良好的完全和部分响应率。对未来的需求,对照研究MPA治疗卵巢恶性肿瘤的作用明显。
    ER and PR were assayed in 13 malignant and 20 benign ovarian tumors of different histologic types. ER was detectable in 67% and PR in 40% of the malignant tumors, compared with 35 and 45% in the benign tumors, respectively. The ER concentration was somewhat higher in the malignant lesions but there was no difference in the PR level. A retrospective review of 39 primary ovarian tumors of different pathologic stages and classes, treated postoperatively with medroxyprogesterone acetate (MPA, Depo-Provera, UpJohn) and in most cases Melphalan, showed a high Karnofsky performance index and good complete and partial response rates. The need for a prospective, controlled study of the role of MPA treatment of malignant ovarian tumors in evident.
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  • 文章类型: Journal Article
    来自接受Depo-Provera避孕的哺乳期妇女牛奶中醋酸甲羟孕酮和/或其代谢物的公开研究的数据外推到理论上平均婴儿每天摄入的药物量。与动物中类似研究的结果进行比较。综述了醋酸甲羟孕酮的胎儿代谢。讨论了人类生殖系统的胚胎和胎儿发育。类固醇激素作用的研究结果,特别是醋酸甲羟孕酮,介绍了子宫内暴露后的心理发育和性二态行为。结论是,哺乳婴儿通过母乳摄入的极少量药物和/或其代谢产物极不可能对哺乳婴儿产生任何显着影响。
    Data from published studies of the quantity of medroxyprogesterone acetate and/or its metabolites in the milk of lactating women receiving Depo-Provera for contraception is extrapolated into the amount of drug ingested daily by a theoretically average infant. Comparisons are made with the results of similar studies in animals. Fetal metabolism of medroxyprogesterone acetate is reviewed. Embryonic and fetal development of the human reproductive system is discussed. Results of studies of the effects of steroidal hormones, particularly medroxyprogesterone acetate, on mental development and sexual dimorphic behavior after exposure in utero are presented. It is concluded that the very small amount of drug and/or its metabolites ingested by the nursing infant via breast milk is highly unlikely to have any significant effect on the nursing infant.
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