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Journal: Determination of Mifepristone (RU-486) and Its Metabolites in Maternal Blood Sample after Pharmacological Abortion. (Pubmed Central) - Nov 16, 2022 To our knowledge, the study presented in this paper is the first report on the concentrations of mifepristone and its metabolites in maternal blood samples after performing a self-induced abortion. The established UHPLC-QqQ-MS/MS method is suitable for forensic toxicological analysis as well as in terms of clinical toxicology in future investigations (examination of pharmacokinetics, bioavailability and metabolism of RU-486).
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Journal: Second-trimester abortion care for those with complex medical conditions. (Pubmed Central) - Nov 9, 2022 Pregnant people presenting for care in the second trimester may have conditions that make an abortion more technically or medically complex. Clinicians can mitigate much of this increased risk with preprocedural planning, and appropriate intra-operative preparedness.
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Review, Journal: Investigating the role of the central melanocortin system in stress and stress-related disorders. (Pubmed Central) - Nov 9, 2022 The MC4R agonists seem to exacerbate stress-inducing anxiety- and depressive-like behavior, while MC4R antagonists have been demonstrated to mitigate such disorders, as shown in several preclinical behavioral tests. The evidence collected in the present review suggest that the melanocortin system, through the MC4R, could possibly modulate behavioral responses to stress, suggesting the use of MC4R antagonists as a possible novel treatment for anxiety and depression induced by stress.
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Reproductive Health Needs in Patients with Bleeding Disorders (ENMCC - Hall D) - Nov 4, 2022 - Abstract #ASH2022ASH_3292; Though limited data, there was a trend towards increased rates of delayed or excessive hemorrhage following induced or spontaneous abortion or ectopic pregnancy in patients with bleeding disorders. Further analyses to look at all outcomes in bleeding disorder patients is ongoing from the database.
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Enrollment open, Trial initiation date: Mifepristone and Two Doses of Misoprostol for Abortion at 11&12 Weeks (clinicaltrials.gov) - Nov 1, 2022 P4, N=171, Recruiting, TGF-β1 inhibitors affect both leiomyoma tissue and the normal uterus; thus, targeted local treatment rather than systemic treatment should be considered. Not yet recruiting --> Recruiting | Initiation date: Jan 2022 --> Oct 2022
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Preclinical, Journal: Visualization of preimplantation uterine fluid absorption in mice using Alexa Fluor™ 488 hydrazide. (Pubmed Central) - Oct 30, 2022 In the glandular epithelium (GE), bulk entry is rarely observed and green cellular dots do not show any consistent differences among all the investigated conditions. This study demonstrates the dominant role of LE but not GE, the temporal mechanisms of bulk entry and endocytosis in the LE, and the inhibitory effects of P4-deficiency and RU486 on bulk entry in the LE in preimplantation uterine fluid absorption.
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Journal: Mifepristone: from pre- to post-protection (Pubmed Central) - Oct 28, 2022 There is a great need for a new contraceptive drug without these hormones with the associated side effects and contraindications; with also a favorable bleeding profile; that can be used orally and not daily; that can serve as a contraceptive and after-care and can also be used on demand. Mifepristone 50 mg seems to provide the answer to all these wishes but is not (yet) registered in the Netherlands.
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Review, Journal: Glucocorticoid receptor blockers. (Pubmed Central) - Oct 26, 2022 Mifepristone is the only glucocorticoid receptor antagonist currently approved for the treatment of Cushing's syndrome...Treatment of severe adrenal insufficiency requires high doses of dexamethasone...These potential adverse effects can largely be avoided with careful attention to detail. My opinion is that its current place in therapy is in patients with severe disease and in those not responding to other treatments.
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Review, Journal: Toxicity of abortifacients: A review for physicians in the post roe era. (Pubmed Central) - Oct 25, 2022 Agents used for medication abortion have unique contraindications and adverse effects. Improper or unsupervised use may occur in the setting of limited abortion access and emergency medicine physicians are on the front lines in managing these presentations.
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Journal: Predictor assessment of complete miscarriage after medical treatment for early pregnancy loss in women with previous cesarean section. (Pubmed Central) - Oct 25, 2022 Patients with retained uterine content after expulsion followed by administration of mifepristone and misoprostol were included if they chose continued medical treatment rather than surgical intervention...More active treatment could be recommended for patients with ultrasonic blood flow of the uterine residual and width of the residual ≥ 1 cm. Clinicians and patients should be aware of these differences when proceeding with medical treatment for EPL patients with previous cesarean section.
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Preclinical, Journal: Influence of COPD systemic environment on the myogenic function of muscle precursor cells in vitro. (Pubmed Central) - Oct 22, 2022 Our findings suggest that MPC capacity is inherently preserved in COPD patients, but is compromised after systemic administration of MP. This finding strengthens the concept that glucocorticoid treatment over the long term can negatively impact myogenic stem cell fate decisions and interfere with muscle mass recovery.
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Journal: Pharmacist direct dispensing of mifepristone for medication abortion in Canada: a survey of community pharmacists. (Pubmed Central) - Oct 14, 2022 Pharmacist respondents from across Canada reported being able and willing to dispense mifepristone and rarely mentioned barriers to stocking/dispensing the medication in the community pharmacy setting. The removal of initial regulatory obstacles to directly dispense mifepristone to patients facilitated the provision of medication abortion in the primary care setting.
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Afferent but Not Efferent Vagus Nerve Stimulation Reduces Endotoxin-Induced Acute Lung Injury via Vagosympathetic Communication (Exhibit Hall, Orange County Convention Center, West Building) - Oct 13, 2022 - Abstract #KIDNEYWEEK2022KIDNEY_WEEK_2401; Hypothalamo-pituitary-adrenocortical (HPA) axis was blocked using mifepristone...Conclusion Our previous and current data collectively suggest that VNS can be an effective therapeutic approach for acute inflammatory conditions such as AKI and ALI. This phenotype is mediated by reduced cytokine production and an overall reduction in inflammatory cells recruitment in the target organ.
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Journal: EFFECTS OF ENDOCRINE DISRUPTING CHEMICALS ON THE EXPRESSION OF RACK1 AND LPS-INDUCED THP-1 CELL ACTIVATION. (Pubmed Central) - Oct 12, 2022 Mifepristone pre-treatments abolish DEP and PFOS effects, confirming their GR agonist profile, also corroborated by molecular docking. Altogether, our data confirm that RACK1 represents an interesting target of steroid active compounds, which expression offers the opportunity to screen the immunotoxic potential of different hormone-active substances of concerns due to their human exposure and environmental persistence.
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Preclinical, Journal: EXPRESSION AND ACTIVITY OF AMINOTRANSFERASES IN THE LIVER OF STREPTOZOTOCIN-DIABETIC RATS: THE EFFECT OF MIFEPRISTONE. (Pubmed Central) - Oct 11, 2022 The introduction of MIF against the background of StD reduces the expression of genes and the activity of ALT and AST in the liver, what determine the transamination of amino acids to include them in gluconeogenesis, but increases the expression of genes and the activity of TAT, what determine the inclusion of tyrosine in the biogenic amines synthesis. The mechanisms of such selectivity require further study.
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Preclinical, Journal: Astilbin Improves Pregnancy Outcome in Rats with Recurrent Spontaneous Abortion by Regulating Th1/Th2 balance. (Pubmed Central) - Oct 5, 2022 An RSA rat model was established by gavage with hydroxyurea and mifepristone...Astilbin treatment significantly increased GATA-3 expression, while it significantly reduced T-bet expression and the T-bet/GATA-3 ratio. Astilbin has a therapeutic effect on RSA in rats by regulating the balance of Th1/Th2 in maternal circulation and likely in decidual tissue.
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Journal: Abortion services and providers in Canada in 2019: results of a national survey. (Pubmed Central) - Oct 5, 2022 The increased availability of medical abortion facilitates abortion access, especially in primary care and rural settings, and where surgical abortion is not available. Rejuvenation of the workforce is a critical contributor to equitable access to abortion services.
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Journal: A randomised comparative study of sublingual and vaginal misoprostol for cervical priming before minor gynaecological procedures. (Pubmed Central) - Sep 30, 2022 Misoprostol has many advantages over other ripening agents like osmotic dilators, other prostaglandins and mifepristone...This effect of vaginal misoprostol was more marked in premenopausal women.What the implications are of these findings for clinical practice and/or further research? The results of our study are at variance with other studies done on use of misoprostol via the vaginal or sublingual routes, and hence it is imperative that large multi-center studies be performed to bring about consensus on the topic.
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Review, Journal: Clinical Utility of Mifepristone: Apprising the Expanding Horizons. (Pubmed Central) - Sep 29, 2022 Apoptotic action of mifepristone, interference of heterotypic cell adhesion to the basement membrane, cell migration, growth inhibition of various cancer cell lines, decreased epidermal growth factor expression, suppression of invasive and metastatic cancer potential, increase in tumor necrosis factor, downregulation of cyclin-dependent kinase 2, B-cell lymphoma 2, and Nuclear factor kappa B have opened its potential to be explored as anti-cancer treatment and its effects on leiomyoma. The drug needs to be studied more for the prospectus of its anti-glucocorticoid actions in a wider dimension beyond its acquiescence for the treatment of Cushing syndrome.
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PK/PD data, Preclinical, Journal: Simultaneous determination and pharmacokinetic study of five compounds from total extract of Clinopodium chinense in abnormal uterine bleeding rat plasma by UPLC-MS/MS (Pubmed Central) - Sep 29, 2022 After validation, the AUB model was established with SD female rats which got pregnant on the same day by gavage with mifepristone(12.4 mg·kg~(-1)) and misoprostol(130 μg·kg~(-1))...All the compounds owned short half-life and quick elimination rate in vivo, and the large apparent volume of distribution indicated that they were widely distributed in tissues. Being rapid, accurate, and sensitive, this method is suitable for the pharmacokinetic study of extracts of Chinese herbal medicines and provides a reference for the study of pharmacodynamic material basis of C. chinense in treating AUB.
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Review, Journal: First Trimester Miscarriage. (Pubmed Central) - Sep 28, 2022 Emergencies requiring immediate interventions are rare. Newer developments in management, including a more effective medical regimen with the addition of mifepristone and cost-effective and convenient in-office surgical interventions, have expanded treatment options.
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