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https://www.readbyqxmd.com/read/29451409/temporal-trends-in-incidence-and-outcome-of-hydatidiform-mole-a-retrospective-cohort-study
#1
Urika Joneborg, Yasin Folkvaljon, Nikos Papadogiannakis, Mats Lambe, Lena Marions
BACKGROUND: Reported incidence rates of hydatidiform mole (HM) show wide geographic and temporal variations, making reliable international comparisons difficult. The aim of the current study was to examine temporal trends in the incidence of HM and post-molar gestational trophoblastic neoplasia (GTN) in Stockholm County. MATERIAL AND METHODS: Data of all women with a diagnosis of HM in Stockholm County 1991-2010 was collected. The incidence of HM was assessed both in relation to number of births and viable conceptions (births and pregnancy terminations)...
February 16, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29431644/induction-of-microrna-199-by-nitric-oxide-in-endothelial-cells-is-required-for-nitrovasodilator-resistance-via-targeting-of-prostaglandin-i2-synthase
#2
Yong-Ping Bai, Jia-Xiong Zhang, Quan Sun, Ji-Peng Zhou, Jing-Min Luo, Ling-Fang He, Xing-Chi Lin, Ling-Ping Zhu, Wan-Zhou Wu, Zhen-Yu Wang, Guo-Gang Zhang
Background -Nitrates are widely used to treat coronary artery disease, but their therapeutic value is compromised by nitrate tolerance, owing to the dysfunction of prostaglandin I2 synthase (PTGIS). Micro RNAs (miRNAs) repress target gene expression and are recognized as important epigenetic regulators of endothelial function. The aim of this study was to determine whether nitrates induce nitrovasodilator resistance via microRNA-dependent repression of PTGIS gene expression. Methods -Nitrovasodilator resistance was induced by nitroglycerin (GTN; 100 mg/kg/day, 3 days) infusion in Apoe-/- mice...
February 5, 2018: Circulation
https://www.readbyqxmd.com/read/29431638/s-nitrosylation-of-ciap1-switches-cancer-cell-fate-from-tnf%C3%AE-tnfr1-mediated-cell-survival-to-cell-death
#3
Sabrina Romagny, Sarra Bouaouiche, Géraldine Lucchi, Patrick Ducoroy, Jean Borges Bertoldo, Hernan Terenzi, Ali Bettaieb, Stéphanie Plenchette
Tumor necrosis factor alpha (TNFα) is a prominent proinflammatory cytokine and a critical mediator for the development of many types of cancer such as breast, colon, prostate, cervical, skin, liver, and chronic lymphocytic leukemia. Binding of TNFα to TNFR1 can lead to divergent signaling pathways promoting predominantly NF-kB activation but also cell death. We report here that the nitric oxide donor glyceryl trinitrate (GTN) converts TNFα, generated from immune cells or cancer cells stimulated by chemotherapy, into a pro-death mediator in colon and mammary cancer cells...
February 5, 2018: Cancer Research
https://www.readbyqxmd.com/read/29426237/targeted-delivery-of-doxorubicin-by-csa-binding-nanoparticles-for-choriocarcinoma-treatment
#4
Baozhen Zhang, Guogang Cheng, Mingbin Zheng, Jinyu Han, Baobei Wang, Mengxia Li, Jie Chen, Tianxia Xiao, Jian Zhang, Lintao Cai, Shoujun Li, Xiujun Fan
Gestational trophoblastic neoplasia (GTN) can result from the over-proliferation of trophoblasts. Treatment of choriocarcinoma, the most aggressive GTN, currently requires high doses of systemic chemotherapeutic agents, which result in indiscriminate drug distribution and severe toxicity. To overcome these disadvantages and enhance the chemotherapeutic efficacy, chondroitin sulfate A (CSA)-binding nanoparticles were developed for the targeted delivery of doxorubicin (DOX) to choriocarcinoma cells using a synthetic CSA-binding peptide (CSA-BP), derived from malarial protein, which specifically binds to the CSA exclusively expressed in the placental trophoblast...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29390471/early-pregnancy-following-multidrug-regimen-chemotherapy-in-a-gestational-trophoblastic-neoplasia-patient-a-case-report
#5
Gang Niu, Lin-Jing Yuan, Feng-Qiu Gong, Juan Yang, Cai-Xia Zhu, Hong-Wei Shen
RATIONALE: Gestational trophoblastic neoplasia is a group of rare tumors that can be cured using chemotherapy. The use of artificial contraception for at least 1 year is recommended not only due to the high recurrence rate in the first year after treatment, but also because of the unclear genetic toxic effects of multidrug regimen chemotherapy on reproductive cells. There is no consensus about the contraception duration, but most patients want to have children. PATIENT CONCERNS: This case involved a 33-year-old female suffering from gestational trophoblastic neoplasia and 5-fluorouracil + actinomycin-D chemotherapy...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29371957/anti-m%C3%A3-llerian-hormone-levels-in-patients-with-gestational-trophoblastic-neoplasia-treated-with-different-chemotherapy-regimens-a-prospective-cohort-study
#6
Xiaoning Bi, Jingjing Zhang, Dongyan Cao, Hengzi Sun, Fengzhi Feng, Xirun Wan, Yang Xiang, Ling Qiu, Xinqi Cheng, Jiaxin Yang, Keng Shen
Purpose: To assess the ovarian reserve of patients with gestational trophoblastic neoplasia (GTN) treated with chemotherapy by evaluating serum anti-Müllerian hormone (AMH) and follicle-stimulating hormone (FSH) levels before, during, and after chemotherapy. Results: The basal AMH level (mean: 3.98 ± 3.20 ng/mL) negatively correlated with age, while the basal FSH level (mean: 5.71 ± 9.69 mIU/mL) had no correlation with age. After 3 chemotherapy cycles, serum AMH levels decreased and FSH levels increased...
December 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/29367697/identification-of-microrna-signature-in-the-progression-of-gestational-trophoblastic-disease
#7
Jiu-Ru Zhao, Wei-Wei Cheng, Ya-Xin Wang, Mei Cai, Wei-Bin Wu, Hui-Juan Zhang
Gestational trophoblastic disease (GTD) encompasses a range of trophoblast-derived disorders. The most common type of GTD is hydatidiform mole (HM). Some of HMs can further develop into malignant gestational trophoblastic neoplasia (GTN). Aberrant expression of microRNA (miRNA) is widely reported to be involved in the initiation and progression of cancers. MiRNA expression profile also has been proved to be the useful signature for diagnosis, staging, prognosis, and response to chemotherapy. Till now, the profile of miRNA in the progression of GTD has not been determined...
January 24, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29358221/sustained-formation-of-nitroglycerin-derived-nitric-oxide-by-aldehyde-dehydrogenase-2-in-vascular-smooth-muscle-without-added-reductants-implications-for-the-development-of-nitrate-tolerance
#8
Marissa Opelt, Gerald Wolkart, Emrah Eroglu, Markus Waldeck-Weiermair, Roland Malli, Wolfgang F Graier, Alexander Kollau, John T Fassett, Astrid Schrammel, Bernd Mayer, Antonius C F Gorren
According to current views, oxidation of aldehyde dehydrogenase-2 (ALDH2) in the course of glyceryltrinitrate (GTN) biotransformation is essentially involved in vascular nitrate tolerance and explains the dependence of the reaction on added thiols. Using a novel fluorescent intracellular NO probe expressed in vascular smooth muscle cells (VSMC) we observed ALDH2-catalyzed formation of nitric oxide (NO) from GTN in the presence of exogenously added dithiothreitol (DTT), whereas only a short burst of NO, corresponding to a single turnover of ALDH2, occurred in the absence of DTT...
January 22, 2018: Molecular Pharmacology
https://www.readbyqxmd.com/read/29355580/sitting-time-is-negatively-related-to-microvascular-endothelium-dependent-function-in-rheumatoid-arthritis
#9
Sally Fenton, Aamer Sandoo, George Metsios, Joan Duda, George Kitas, Jet Veldhuijzen van Zanten
BACKGROUND: Sedentary behaviour is linked to increased cardiovascular disease risk in Rheumatoid Arthritis (RA), but the biological processes underlying this relationship are not understood. OBJECTIVES: To investigate the cross-sectional associations of habitual sedentary behaviour, with endothelial function in RA. METHODS: Sixty-eight RA patients (Mage = 55 ± 12 years) underwent Laser Doppler Imaging with iontophoresis, to assess microvascular endothelium-dependent (acetylcholine, ACh) and endothelium-independent (sodium nitroprusside, SNP) function...
January 17, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29353908/partial-invasive-mole-with-bilateral-torsion-of-theca-lutein-cysts
#10
Randhir Sagar Yadav, Shumneva Shrestha, Santosh Sharma, Meeta Singh, Kesang Diki Bista, Neebha Ojha
Gestational trophoblastic neoplasia is extremely rare entity accounting 1% of all gynecological malignancies. Invasive mole is a form of Gestational trophoblastic neoplasia which is locally invasive with propensity of metastasis. Association of partial mole with invasive mole and/or theca lutein cysts is a rare occurrence. Large cysts may present with complications. A case with these rare combinations presented at 15+3 weeks period of gestation as acute abdomen due to torsion of bilateral theca lutein cysts is reported...
January 1, 2018: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/29344989/salmon-calcitonin-ameliorates-migraine-pain-through-modulation-of-cgrp-release-and-dural-mast-cell-degranulation-in-rats
#11
Erkan Kilinc, Yasar Dagistan, Aysel Kukner, Bayram Yilmaz, Sami Agus, Gizem Soyler, Fatma Tore
The exact mechanism of migraine pathophysiology still remains unclear due to the complex nature of migraine pain. Salmon calcitonin (SC) exhibits antinociceptive effects in the treatment of various pain conditions. In this study, we explored the mechanisms underlying the analgesic effect of salmon calcitonin on migrane pain using glyceryltrinitrate(GTN)-induced model of migraine and ex-vivo meningeal preparations in rats. Rats were administered intraperitoneally saline, GTN(10mg/kg), vehicle, saline+GTN, SC(50μg/kg)+GTN, and SC alone...
January 18, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29324534/reproductive-outcomes-after-gestational-trophoblastic-neoplasia-a-comparison-between-single-agent-and-multiagent-chemotherapy-retrospective-analysis-from-the-mito-9-group
#12
Raffaella Cioffi, Alice Bergamini, Angiolo Gadducci, Gennaro Cormio, Veronica Giorgione, Micaela Petrone, Emanuela Rabaiotti, Francesca Pella, Massimo Candiani, Giorgia Mangili
OBJECTIVES: Gestational trophoblastic neoplasia affects women of reproductive age and is usually treated by chemotherapy. Major concerns related to chemotherapy in young women are the possible infertility, risk of early menopause, and teratogenic effects on subsequent pregnancies. The study's aim was to analyze menstrual and reproductive outcomes of women treated with single-agent versus multiagent chemotherapy for gestational trophoblastic neoplasia. METHODS: One-hundred fifty-one patients were treated...
February 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29317214/case-series-use-of-glyceryl-trinitrate-patches-to-improve-peripheral-circulation-in-children-with-severe-neurodisability
#13
Frances Morrison, Jack Fairhurst, Charlie Fairhurst
AIM: Evaluation of topical Glyceryl trinitrate as a therapeutic option to improve peripheral circulation in 16 children with severe complex neurodisability, poor capillary return and signs of vascular insufficiency, including discomfort. METHODS: If insufficient improvement in capillary return was obtained using conservative measures, a 5 mg GTN patch was placed each day on the front of the tibia of each leg. Children were reviewed clinically for up to 12 months of treatment...
December 31, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29306609/efficacy-and-safety-of-med2005-a-topical-glyceryl-trinitrate-formulation-in-the-treatment-of-erectile-dysfunction-a-randomized-crossover-study
#14
David J Ralph, Ian Eardley, Jorg Taubel, Paul Terrill, Tim Holland
BACKGROUND: Current treatments for erectile dysfunction (ED) have some limitations. AIM: This study evaluated the efficacy and tolerability of MED2005, a 0.2% glyceryl trinitrate topical gel, formulated into an enhanced absorption topical delivery system (DermaSys), administered on demand, in the treatment of ED. METHODS: This randomized, double-blinded, placebo-controlled, phase II crossover trial involved 232 men with ED (231 treated, 230 assessed for efficacy) and their partners...
December 29, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29288055/atorvastatin-combined-with-ticagrelor-prevent-ischemia-reperfusion-induced-vascular-endothelial-dysfunction-in-healthy-young-males-a-randomized-placebo-controlled-double-blinded-study
#15
Stefan Weisshaar, Brigitte Litschauer, Tillmann Kerbel, Michael Wolzt
BACKGROUND: Atorvastatin and ticagrelor have been shown to prevent against tissue injury in animals. It is unclear if these beneficial effects are also detectable in humans. We studied the effect of high-dose atorvastatin combined with ticagrelor loading on endothelial dysfunction in a model of forearm vascular ischemia-reperfusion (IR) injury. METHODS: 32 healthy subjects (n=16 per group) were enrolled in this randomized, placebo-controlled, double-blinded trial...
December 24, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29248195/is-chemotherapy-always-necessary-for-patients-with-nonmetastatic-gestational-trophoblastic-neoplasia-with-histopathological-diagnosis-of-choriocarcinoma
#16
Antonio Braga, Vanessa Campos, Jorge Rezende Filho, Lawrence H Lin, Sue Yazaki Sun, Christiani Bisinoto de Souza, Rita de Cássia Alves Ferreira da Silva, Elaine Azevedo Soares Leal, Eduardo Silveira, Izildinha Maestá, José Mauro Madi, Elza H Uberti, Maurício Viggiano, Kevin M Elias, Neil Horowitz, Ross S Berkowitz
OBJECTIVE: To evaluate expectant management versus immediate chemotherapy following pathological diagnosis of gestational choriocarcinoma (GCC) in patients with nonmetastatic disease. METHODS: Multicenter retrospective cohort that included patients with histological diagnosis of GCC with nonmetastatic disease followed at one of thirteen Brazilian referral centers for gestational trophoblastic disease from January 2000 to December 2016. RESULTS: Among 3191 patients with gestational trophoblastic neoplasia, 199 patients with nonmetastatic GCC were identified...
February 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29241947/effects-of-sublingual-glyceryl-trinitrate-administration-on-the-quality-of-preprocedure-ct-angiography-performed-to-plan-prostate-artery-embolization
#17
Mark W Little, Andrew C Macdonald, Phil Boardman, Mark J Bratby, Suzie Anthony, Mohammed Hadi, Charles R Tapping
PURPOSE: To determine the effects of sublingual glyceryl trinitrate (GTN) on the quality of planning computed tomography (CT) angiography performed prior to prostate artery embolization (PAE). MATERIALS AND METHODS: A retrospective cohort study was performed on patients who had previously undergone CT angiography before a procedure for PAE at our institution. Early CT angiography studies for PAE at our single center had initially been performed without GTN. These were compared to subsequent CT angiography studies that had been performed with GTN, after a previously implemented change in practice...
December 11, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29229282/what-is-the-optimal-duration-of-human-chorionic-gonadotrophin-surveillance-following-evacuation-of-a-molar-pregnancy-a-retrospective-analysis-on-over-20-000-consecutive-patients
#18
Christopher Coyle, Dee Short, Lauren Jackson, Neil J Sebire, Baljeet Kaur, Richard Harvey, Philip M Savage, Michael J Seckl
OBJECTIVE: To quantify the risk of developing post-molar gestational trophoblastic neoplasia (pGTN) beyond the first normal human chorionic gonadotrophin (hCG) in women who have had a complete (CHM) or partial molar pregnancy (PHM) and to re-evaluate the current UK Hydatidiform mole hCG surveillance guidelines. METHODS: The Charing Cross Hospital Trophoblast Disease Centre database was screened to identify all registered cases of hydatidiform mole (HM) between 1980 and 2009...
February 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29214637/identification-and-treatment-of-gestational-trophoblastic-neoplasia-located-in-the-cesarean-scar
#19
Xiaoyu Wang, Yuan Li, Junjun Yang, Yonglan He, Ming Wang, Xirun Wan, Yang Xiang
OBJECTIVE: To identify the clinical characteristics of, and the diagnostic and therapeutic strategies for, gestational trophoblastic neoplasia (GTN) located in the cesarean scar. METHODS: The present retrospective analysis was conducted among patients diagnosed with GTN located in the cesarean scar at Peking Union Medical College Hospital, Beijing, China, between June 1, 2006, and May 31, 2016. Clinical features, diagnostic and therapeutic procedures, and outcomes were reviewed...
December 6, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29203625/fetal-microsatellite-in-the-heme-oxygenase-1-promoter-is-associated-with-severe-and-early-onset-preeclampsia
#20
Tea Kaartokallio, Siddheshwar Utge, Miira M Klemetti, Jussi Paananen, Kari Pulkki, Jarkko Romppanen, Ilkka Tikkanen, Seppo Heinonen, Eero Kajantie, Juha Kere, Katja Kivinen, Anneli Pouta, Päivi Lakkisto, Hannele Laivuori
Preeclampsia is a vascular pregnancy disorder that often involves impaired placental development. HO-1 (heme oxygenase 1, encoded by HMOX1) is a stress response enzyme crucial for endothelial and placental function. Long version of the guanine-thymine (GTn) microsatellite in the HMOX1 promoter decreases HO-1 expression, and the long maternal repeat is associated with late-onset preeclampsia. Our aim was to study whether the length of fetal repeat is associated with mother's preeclampsia, whether the length of fetal and maternal repeats affect HO-1 levels in placenta and maternal serum, and whether HO-1 levels are altered in preeclampsia...
December 4, 2017: Hypertension
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