Mifepristone

米非司酮
  • 文章类型: Journal Article
    睡眠和免疫内分泌系统之间的联系是公认的,但是这种关系的性质还没有得到很好的理解。睡眠碎片诱导外周组织和大脑的促炎反应,但它也激活下丘脑-垂体-肾上腺(HPA)轴,释放糖皮质激素(GC)(人类皮质醇和小鼠皮质酮)。尚不清楚糖皮质激素的这种快速释放是否在短期内增强或抑制炎症反应。这项研究的目的是确定阻断或抑制糖皮质激素活性是否会影响急性睡眠碎片(ASF)的炎症反应。雄性C57BL/6J小鼠腹膜内注射0.9%NaCl(载体1),metyrapone(一种糖皮质激素合成抑制剂,溶解在车辆1中),2%乙醇在聚乙二醇(载体2),或者米非司酮(一种糖皮质激素受体拮抗剂,溶解在媒介物2中)在ASF开始前10分钟或无睡眠碎片(NSF)。24小时后,样本是从大脑(前额叶皮层,下丘脑,海马体)和外周(肝脏,脾,脾心,和附睾白色脂肪组织(EWAT))。测量促炎基因表达(TNF-α和IL-1β),然后进行基因表达分析。美替酮治疗影响了ASF期间某些外周组织的促炎细胞因子基因表达,但不是在大脑里.更具体地说,甲吡酮治疗抑制ASF期间EWAT中IL-1β的表达,这意味着GC的促炎作用。然而,在心脏组织中,甲吡酮治疗可增加ASF小鼠的TNF-α表达,提示GC的抗炎作用。米非司酮治疗比甲吡酮产生更显著的结果,在ASF期间减少肝脏(仅NSF小鼠)和心脏组织中的TNF-α表达,表明有促炎作用。相反,在ASF小鼠的脾脏中,米非司酮增加促炎细胞因子(TNF-α和IL-1β),表现出抗炎作用。此外,不管睡眠碎片,米非司酮增加心脏促炎细胞因子基因表达(IL-1β),前额叶皮质(IL-1β),和下丘脑(IL-1β)。结果为皮质酮的促炎和抗炎功能提供了混合证据,以调节急性睡眠不足的炎症反应。
    The association between sleep and the immune-endocrine system is well recognized, but the nature of that relationship is not well understood. Sleep fragmentation induces a pro-inflammatory response in peripheral tissues and brain, but it also activates the hypothalamic-pituitary-adrenal (HPA) axis, releasing glucocorticoids (GCs) (cortisol in humans and corticosterone in mice). It is unclear whether this rapid release of glucocorticoids acts to potentiate or dampen the inflammatory response in the short term. The purpose of this study was to determine whether blocking or suppressing glucocorticoid activity will affect the inflammatory response from acute sleep fragmentation (ASF). Male C57BL/6J mice were injected i.p. with either 0.9% NaCl (vehicle 1), metyrapone (a glucocorticoid synthesis inhibitor, dissolved in vehicle 1), 2% ethanol in polyethylene glycol (vehicle 2), or mifepristone (a glucocorticoid receptor antagonist, dissolved in vehicle 2) 10 min before the start of ASF or no sleep fragmentation (NSF). After 24 h, samples were collected from brain (prefrontal cortex, hypothalamus, hippocampus) and periphery (liver, spleen, heart, and epididymal white adipose tissue (EWAT)). Proinflammatory gene expression (TNF-α and IL-1β) was measured, followed by gene expression analysis. Metyrapone treatment affected pro-inflammatory cytokine gene expression during ASF in some peripheral tissues, but not in the brain. More specifically, metyrapone treatment suppressed IL-1β expression in EWAT during ASF, which implies a pro-inflammatory effect of GCs. However, in cardiac tissue, metyrapone treatment increased TNF-α expression in ASF mice, suggesting an anti-inflammatory effect of GCs. Mifepristone treatment yielded more significant results than metyrapone, reducing TNF-α expression in liver (only NSF mice) and cardiac tissue during ASF, indicating a pro-inflammatory role. Conversely, in the spleen of ASF-mice, mifepristone increased pro-inflammatory cytokines (TNF-α and IL-1β), demonstrating an anti-inflammatory role. Furthermore, irrespective of sleep fragmentation, mifepristone increased pro-inflammatory cytokine gene expression in heart (IL-1β), pre-frontal cortex (IL-1β), and hypothalamus (IL-1β). The results provide mixed evidence for pro- and anti-inflammatory functions of corticosterone to regulate inflammatory responses to acute sleep loss.
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  • 文章类型: News
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  • 文章类型: Multicenter Study
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  • 文章类型: Journal Article
    背景:在印度,使用米非司酮和米索前列醇的药物流产可在妊娠63天。这占该国所有堕胎的67.5%。我们进行了评估,以确定药物流产药物的可用性,特别是组合包,在印度。
    方法:我们在国家一级应用了世界卫生组织景观评估协议。评估协议包括对现有可用性框架的五步调整,包括在线数据收集,案头审查,国家一级的关键线人访谈,和分析,以确定障碍和机会,以提高医疗流产的可用性。评估于2021年8月至3月间进行。
    结果:药物流产药物被列入国家基本药物清单,并在印度有处方。评估确定了由35家制造商开发的42种组合包装产品。药物流产药物的质量由国家当局监管;但是随着健康移交给各州,有显著的州际差异。这在整个融资过程中都可以看到,采购,制造,和药物流产药物分发前质量保证的监测机制。有必要加强供应链系统,确保训练有素的提供者的一致可用性,并提高社区对使用药物流产药物进行早期流产的认识,在评估时。
    结论:存在提高药物流产药物的可用性和质量的机会。例如,统一执行监管标准,在制造过程中更加重视质量保证,以及各州采购和供应链系统的标准化。需要对提供者进行药物流产的定期在职培训。最后,需要在证据传播和社区参与方面进行创新,以了解最近修订的堕胎法。
    药物流产在印度很流行,并受益于自由的法律背景。重要的是要了解该国优质流产药物的可用性。使用世界卫生组织国家评估协议和药物流产药物的可用性框架,我们从供应到需求检查了这些药物的可用性。我们利用这些信息来确定增加质量保证的药物流产的机会。我们发现,药物流产的背景因各州而异。加强采购和供应链管理,应在国家一级更加重视质量保证和制造业监管。还需要培训,以增加提供者对最新国家准则和法律的了解,以确保尊重和以人为本的服务。最后,应该让公众了解药物流产是一种安全有效的选择,尤其是早期流产。
    BACKGROUND: Medical abortion with mifepristone and misoprostol can be provided up to 63 days\' gestation in India. This accounts for 67.5 percent of all abortions in the country. We conducted an assessment to determine the availability of medical abortion medicines, specifically the combi-pack, in India.
    METHODS: We applied the World Health Organization landscape assessment protocol at the national level. The assessment protocol included a five-step adaptation of an existing availability framework, including online data collection, desk review, country-level key informant interviews, and an analysis to identify barriers and opportunities to improve medical abortion availability. The assessment was conducted between August and March 2021.
    RESULTS: Medicines for medical abortion are included in the national essential drug list and available with prescription in India. The assessment identified 42 combi-pack products developed by 35 manufacturers. The quality of medical abortion medicines is regulated by national authorities; but as health is devolved to states, there are significant inter-state variations. This is seen across financing, procurement, manufacturing, and monitoring mechanisms for quality assurance of medical abortion medicines prior to distribution. There is a need to strengthen supply chain systems, ensure consistent availability of trained providers and build community awareness on use of medical abortion medicines for early abortions, at the time of the assessment.
    CONCLUSIONS: Opportunities to improve availability and quality of medical abortion medicines exist. For example, uniform implementation of regulatory standards, greater emphasis on quality-assurance during manufacturing, and standardizing of procurement and supply chain systems across states. Regular in-service training of providers on medical abortion is required. Finally, innovations in evidence dissemination and community engagement about the recently amended abortion law are needed.
    Medical abortion is popular in India and benefits from a liberal legal context. It is important to understand the availability of quality abortion medicines in the country. Using the World Health Organization country assessment protocol and availability framework for medical abortion medicines we examined the availability of these medicines from supply to demand. We used this information to identify opportunities for increasing availability of quality-assured medical abortion medicines. We found that the context for medical abortion varies across states. Strengthening procurement and supply chain management, with a greater emphasis on quality-assurance and regulation of manufacturing should be instituted at the state-level. Training is also needed to increase provider knowledge of the latest national guidelines and laws to ensure respectful and person-centered services. Finally, the public should be informed about medical abortion as a safe and effective choice, especially for early abortions.
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  • 文章类型: Journal Article
    目的:总结左炔诺孕酮宫内缓释系统(LNG-IUS)治疗子宫腺肌病(AM)的证据,并找出潜在的研究空白。
    方法:在MEDLINE中进行搜索,科克伦图书馆,EMBASE,CBM,CNKI,还有万方。我们纳入了调查接受LNG-IUS联合保守治疗的AM患者的研究。
    结果:39项研究比较了LNG-IUS与其他保守治疗药物。最常见的比较是GnRH-a+LNG-IUS与仅液化天然气-IUS,其次是LNG-IUSvs.米非司酮,预期治疗,和GnRH-a.在6个月的随访中,GnRH-aLNG-IUS比单独使用LNG-IUS更有利于减轻子宫增大和中度至重度痛经的患者的痛经强度。需要大型且精心设计的研究来确认LNG-IUS和GnRH-a在6个月随访时减少子宫体积的功效。32项研究调查了LNG-IUS作为术后管理。最常见的比较是手术切除+LNG-IUS与手术切除。结果显示,在1年随访时,手术切除+LNG-IUS组的VAS评分低于手术切除组。子宫内膜厚度的证据,生活质量,需要3年和5年的不良事件和有益效果。
    结论:对于子宫增大和中度至重度痛经的患者,GnRH-a和LNG-IUS联合治疗比单独使用LNG-IUS更有效。此外,LNG-IUS似乎在术后治疗中显示出潜在的长期益处,需要进一步的荟萃分析以进行确认。
    OBJECTIVE: To summarize evidence on levonorgestrel releasing intrauterine system (LNG-IUS) in the treatment of adenomyosis (AM) and to identify potential research gaps.
    METHODS: Search was conducted in MEDLINE, The Cochrane Library, EMBASE, CBM, CNKI, and Wanfang. We included studies investigating patients with AM treated with LNG-IUS combined with conservative therapy.
    RESULTS: Thirty-nine studies compared LNG-IUS with other conservative therapeutic drugs. The most common comparison was GnRH-a + LNG-IUS vs. LNG-IUS alone, followed by LNG-IUS vs. mifepristone, expected treatment, and GnRH-a. GnRH-a + LNG-IUS was more beneficial in reducing the intensity of dysmenorrhea than LNG-IUS alone at the 6-month follow-up in patients with an enlarged uterus and moderate to severe dysmenorrhea. Large and well-designed studies are needed to confirm the efficacy of LNG-IUS and GnRH-a on reducing uterine volume at 6-month follow-up. Thirty-two studies investigated LNG-IUS as the postoperative management. The most common comparison was surgical excision + LNG-IUS vs. surgical excision. Results showed VAS scores were lower in the surgical excision + LNG-IUS group than in the surgical excision group at the 1-year follow-up. Evidence on endometrial thickness, quality of life, adverse events and beneficial effect at 3 and 5 years are needed.
    CONCLUSIONS: Combined GnRH-a and LNG-IUS treatment was more efficacious than LNG-IUS alone for patients with an enlarged uterus and moderate to severe dysmenorrhea. Moreover, LNG-IUS seemed to show potential long-term benefits in postoperative therapy, warranting further meta-analysis for confirmation.
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  • 文章类型: Journal Article
    背景:尽管它们对降低孕产妇死亡率很重要,关于获得米非司酮的信息,米索前列醇,东地中海地区的避孕药物有限。
    方法:一种标准化评估工具,用于测量获得米非司酮的情况,米索前列醇,世卫组织基本药物清单(EML)中的避孕药物在东地中海区域的八个国家(阿富汗,伊拉克,黎巴嫩,利比亚,摩洛哥,巴勒斯坦,巴基斯坦,和索马里)在2020-2021年之间。评估的重点是五项获取措施:1)将药物纳入国家计划生育指南;2)将药物纳入综合堕胎护理指南;3)将药物纳入国家基本药物清单;4)药物注册;5)米非司酮的采购和预测,米索前列醇,和避孕药。对这八项国家评估的结果进行了描述性分析。
    结果:只有黎巴嫩和巴基斯坦在其国家计划生育指南中纳入了WHO-EML的所有12种避孕药具。只有阿富汗和黎巴嫩在堕胎后护理指南中包括米非司酮和米非司酮-米索前列醇组合,但这些药物不包括在他们的国家EMLs。利比亚和索马里缺乏药品注册的国家监管机构。大多数避孕药包括在黎巴嫩的国家EMLs中,摩洛哥和巴基斯坦已注册。米索前列醇被列入EML,并在六个国家注册(阿富汗,伊拉克,黎巴嫩,摩洛哥,巴勒斯坦,和巴基斯坦)。然而,只有三个国家采购了米索前列醇(伊拉克,摩洛哥,和索马里)。
    结论:这些发现可以指导旨在提高米非司酮可用性的努力,米索前列醇,以及东地中海地区的避孕药物。机会包括扩大国家EML,包括米非司酮的更多选择,米索前列醇,并加强注册和采购制度,以确保这些药物的可获得性是国家法律和文化上可接受的。
    确保获得米非司酮,米索前列醇,避孕药物对改善妇女健康至关重要,更具体地说,降低产妇死亡率,改善东地中海区域妇女的性健康和生殖健康。这项研究的目的是分析国家评估的结果,以获取有关执行相关政策和程序的信息。这些是确保获得米非司酮的政策,米索前列醇,和研究中包括的八个东地中海区域国家在公共部门的避孕药物(阿富汗,伊拉克,利比亚,黎巴嫩,摩洛哥,巴勒斯坦,巴基斯坦,和索马里)。评估在2020年至2021年之间完成。我们发现,大多数国家并没有在其国家计划生育指南中纳入世卫组织基本药物清单(EML)中的所有12种避孕药具。没有任何国家制定了国家堕胎护理指南,也没有将米非司酮(单独或与米索前列醇联合使用)纳入国家EML。利比亚和索马里缺乏药品注册的国家监管机构。大多数避孕药包括在黎巴嫩的国家EMLs中,摩洛哥和巴基斯坦已注册。米索前列醇被列入EML-并在六个国家注册(阿富汗,伊拉克,黎巴嫩,摩洛哥,巴勒斯坦,和巴基斯坦)然而,只有三个国家采购了米索前列醇(伊拉克,摩洛哥,和索马里)。我们的发现为米非司酮的使用提供了系统级障碍的证据,米索前列醇,和避孕药(例如,缺乏关于EML的指导方针或纳入,缺乏注册和采购),可以支持加强制药部门的政策和宣传努力,以更好地确保米非司酮的供应,米索前列醇,根据国家法律和现行文化,在国家一级向育龄妇女提供避孕药具。
    BACKGROUND: Despite their importance in reducing maternal mortality, information on access to Mifepristone, Misoprostol, and contraceptive medicines in the Eastern Mediterranean Region is limited.
    METHODS: A standardized assessment tool measuring access to Mifepristone, Misoprostol, and contraceptive medicines included in the WHO essential medicines list (EML) was implemented in eight countries in the Eastern Mediterranean Region (Afghanistan, Iraq, Lebanon, Libya, Morocco, Palestine, Pakistan, and Somalia) between 2020-2021. The assessment focused on five access measures: 1) the inclusion of medicines in national family planning guidelines; 2) inclusion of medicines in comprehensive abortion care guidelines; 3) inclusion of medicines on national essential medicines lists; 4) medicines registration; and 5) procurement and forecasting of Mifepristone, Misoprostol, and contraceptive medicines. A descriptive analysis of findings from these eight national assessments was conducted.
    RESULTS: Only Lebanon and Pakistan included all 12 contraceptives that are enlisted in the WHO-EML within their national family planning guidelines. Only Afghanistan and Lebanon included mifepristone and mifepristone-misoprostol combination in post-abortion care guidelines, but these medicines were not included in their national EMLs. Libya and Somalia lacked a national regulatory authority for medicines registration. Most contraceptives included on the national EMLs for Lebanon, Morocco and Pakistan were registered. Misoprostol was included on the EMLs-and registered-in six countries (Afghanistan, Iraq, Lebanon, Morocco, Palestine, and Pakistan). However, only three countries procured misoprostol (Iraq, Morocco, and Somalia).
    CONCLUSIONS: These findings can guide efforts aimed at improving the availability of Mifepristone, Misoprostol, and contraceptive medicines in the Eastern Mediterranean Region. Opportunities include expanding national EMLs to include more options for Mifepristone, Misoprostol, and contraceptive medicines and strengthening the registration and procurement systems to ensure these medicines\' availability were permitted under national law and where culturally acceptable.
    Ensuring access to Mifepristone, Misoprostol, and contraceptive medicines is critical to improving women’s health, and more specifically reducing maternal mortality and improving women’s sexual and reproductive health in the Eastern Mediterranean Region.The aim of this study was to analyse findings from national assessments to capture information on the implementation of relevant policies and procedures. Those were the policies that ensure access to Mifepristone, Misoprostol, and contraceptive medicines in the public sector for the eight Eastern Mediterranean Region countries included in the study (Afghanistan, Iraq, Libya, Lebanon, Morocco, Palestine, Pakistan, and Somalia). The assessments were completed between 2020 and 2021.We found that most countries did not include all twelve contraceptives enlisted in the WHO essential medicines list (EML) in their national family planning guidelines. No country had developed a national abortion care guidelines nor included mifepristone (alone or in combination with misoprostol) on national EML. Libya and Somalia lacked a national regulatory authority for medicines registration. Most contraceptives included on the national EMLs for Lebanon, Morocco and Pakistan were registered. Misoprostol was included on the EMLs—and registered—in six countries (Afghanistan, Iraq, Lebanon, Morocco, Palestine, and Pakistan) yet, only three countries procured misoprostol (Iraq, Morocco, and Somalia).Our findings provide evidence on system-level barriers to availability of Mifepristone, Misoprostol, and contraceptive medicines (e.g., lack of guidelines or inclusion on EML, lack of registration and procurement) that can support policy and advocacy efforts to strengthen the pharmaceutical sector to better ensure availability of Mifepristone, Misoprostol, and contraceptive medicines to women in reproductive age at the country-level in accordance with the national law and prevailing culture.
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  • 文章类型: Journal Article
    早产是一种严重的妊娠并发症,会影响新生儿死亡率,发病率和长期神经预后。预测自发性早产(PTD)对其管理很重要。虽然排除PTD的风险很重要,确定PTD高危女性的医疗干预势在必行.目前在临床实践中使用的PTD预测参数显示出较高的阴性预测值,但阳性预测值低。我们专注于分娩开始前子宫和阴道的硫酸化和唾液酸化糖萼变化,并探索了电生理检测这些变化作为具有高阳性预测值的PTD预测参数的潜力。使用两种不同的小鼠PTD模型测量体内局部阴道生物电阻抗(VZ)。通过皮下注射米非司酮或局部宫内注射脂多糖(LPS)在ICR小鼠中诱导PTD。米非司酮给药后的PTD率为100%和60%(16-20小时,n=4)和LPS(12-24小时,n=20),分别。局部VZ值(米非司酮或LPS处理后15和10小时,分别)在PTD组明显低于非PTD组。对于米非司酮和LPS模型,在125kHz下VZ的接收器操作员特征(ROC)曲线分析作为PTD的预测因子显示ROC曲线下面积为1.00和0.77,阳性预测值为1.00和0.86。表明局部VZ值可以预测PTD。治疗后6小时,LPS处理的模型的组织学检查显示宫颈子宫内膜中磺粘蛋白和/或硫酸化蛋白聚糖和唾液酸粘蛋白的表达增加,宫颈间质和阴道间质。总之,局部VZ值可以确定子宫和阴道内的硫酸化和唾液酸化糖萼改变,并且可能是有用的PTD预测参数。
    Preterm birth is a serious pregnancy complication that affects neonatal mortality, morbidity, and long-term neurological prognosis. Predicting spontaneous preterm delivery (PTD) is important for its management. While excluding the risk of PTD is important, identifying women at high risk of PTD is imperative for medical intervention. Currently used PTD prediction parameters in clinical practice have shown high negative predictive values, but low positive predictive values. We focused on sulfated and sialylated glycocalyx changes in the uterus and vagina prior to the onset of parturition and explored the potential of electrophysiological detection of these changes as a PTD prediction parameter with a high positive predictive value. In vivo local vaginal bioelectrical impedance (VZ) was measured using two different mouse PTD models. PTD was induced in ICR mice through the subcutaneous injection of mifepristone or local intrauterine injection of lipopolysaccharide (LPS). The PTD rates were 100% and 60% post-administration of mifepristone (16-20 h, n = 4) and LPS (12-24 h, n = 20), respectively. The local VZ values (15 and 10 h after mifepristone or LPS treatment, respectively) were significantly lower in the PTD group than in the non-PTD group. Receiver operator characteristic (ROC) curve analysis of VZ at 125 kHz as a predictor of PTD showed an area under the ROC curve of 1.00 and 0.77 and positive predictive values of 1.00 and 0.86, for the mifepristone and LPS models, respectively, suggesting that local VZ value can predict PTD. Histological examination of the LPS-treated model 6 h post-treatment revealed increased expression of sulfomucins and/or sulfated proteoglycans and sialomucins in the cervical epithelium, cervical stroma and vaginal stroma. In conclusion, local VZ values can determine sulfated and sialylated glycocalyx alterations within the uterus and vagina and might be a useful PTD prediction parameter.
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  • 文章类型: News
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    文章类型: Journal Article
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  • 文章类型: Journal Article
    2023年1月,美国食品和药物管理局修改了规范米非司酮的风险评估和缓解策略(REMS)计划,以允许从零售药店直接分配。2023年6月,我们进行了一项随机调查,使用秘密购物者方法对加利福尼亚州的药房进行分布调查,以调查获得米非司酮的可行性。一家药房立即提供了米非司酮(<24小时),并且米索前列醇的可用性有限。米索前列醇的可达性因药物类型而异(p<0.01),但不是按地区。即使在生殖自由状态下,从门诊零售药房获得米非司酮和米索前列醇的机会仍然有限。
    In January 2023, the Food & Drug Administration modified the Risk Evaluation and Mitigation Strategy program regulating mifepristone to allow direct dispensation from retail pharmacies. In June 2023, we conducted a random, distributive survey of pharmacies in California using secret shopper methodology to investigate the feasibility of accessing mifepristone. One pharmacy had mifepristone immediately available (<24 hours), and misoprostol availability was limited. Accessibility to misoprostol varied by type of pharmacy (p < 0.01), but not by region. Even in a reproductive freedom state, access to mifepristone and misoprostol from outpatient retail pharmacies remains limited.
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