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https://www.readbyqxmd.com/read/28813702/tocolysis-for-in-utero-surgery-atosiban-performs-distinctly-better-than-magnesium-sulfate
#1
Nicole Ochsenbein-Kölble, Franziska Krähenmann, Margret Hüsler, Martin Meuli, Ueli Moehrlen, Lucca Mazzone, Peter Biro, Roland Zimmermann
INTRODUCTION: To compare tocolysis with magnesium sulfate versus atosiban regarding the occurrence of short-term preterm labor and maternal side effects during and after open fetal myelomeningocele (MMC) repair. MATERIAL AND METHODS: A prospective nonrandomized cohort study was performed including 30 fetal MMC cases. The first 15 cases (group 1) received magnesium sulfate according to the MOMS protocol. In the following 15 cases (group 2), magnesium sulfate was substituted by atosiban...
August 17, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28774871/enteric-serotonin-and-oxytocin-endogenous-regulation-of-severity-in-a-murine-model-of-necrotizing-enterocolitis
#2
Kara Gross Margolis, Jennifer Vittorio, Maria Talavera, Karen Gluck, Zhishan Li, Alina Iuga, Korey Stevanovic, Virginia Saurman, Narek Israelyan, Martha G Welch, Michael D Gershon
Necrotizing enterocolitis (NEC), a gastrointestinal inflammatory disease of unknown etiology, causes a great deal of morbidity and mortality in premature infants. The liver as well as the gut may be affected in NEC. We tested the hypothesis that signaling molecules, which are endogenous to the bowel, regulate the severity of experimental NEC in mice. Specifically, we postulated that mucosal serotonin (5-HT), which is proinflammatory, would increase the severity of NEC and that oxytocin (OT), which is present in enteric neurons and is anti-inflammatory, would oppose NEC...
August 3, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28707771/effect-of-vaginal-progesterone-in-tocolytic-therapy-during-preterm-labor-in-twin-pregnancies-secondary-analysis-of-a-placebo-controlled-randomized-trial
#3
Wagner R Hernandez, Rossana P V Francisco, Roberto E Bittar, Ursula T Gomez, Marcelo Zugaib, Maria L Brizot
AIM: Our aim was to investigate the effect of the prophylactic use of vaginal progesterone on the latency period from the initiation of tocolytic therapy to delivery in twin pregnancies with preterm labor. METHODS: This study was a secondary analysis of a randomized, double-blind, placebo-controlled trial of twin pregnancies in mothers who were exposed to a 200 mg vaginal progesterone ovule or a placebo ovule daily from 18 to 34 weeks gestation. Patients who were administered tocolysis with Atosiban because of preterm labor were included...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28695395/a-meta-analysis-of-atosiban-supplementation-among-patients-undergoing-assisted-reproduction
#4
Jie Li, Yang Chen, Anran Wang, Haiying Zhang
OBJECTIVES: Evidence for the efficacy of atosiban in improving pregnancy outcomes among patients undergoing assisted reproductive technology (ART) remains inconsistent. METHODS: The PubMed, EMBASE, and CNKI databases were searched using keywords such as 'atosiban', 'infertility', and 'ART'. Studies that explored the efficacy of atosiban in the field of ART for patients with embryo transfer (ET) were included if they evaluated pregnancy outcomes. Combing using subgroups and sensitivity analysis were conducted, and risk ratios (RRs), and 95% confidence intervals (CIs) were calculated...
July 10, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28587936/intra-hippocampal-microinjection-of-oxytocin-produced-antiepileptic-effect-on-the-pentylenetetrazol-induced-epilepsy-in-rats
#5
Amir Erfanparast, Esmaeal Tamaddonfard, Farzin Henareh-Chareh
BACKGROUND: In addition to its role as a circulating hormone, oxytocin can also act as a neurotransmitter and a neuromodulator within the brain. In this study, we investigated the intra-hippocampal effect of oxytocin on an experimental seizure model induced by pentylenetetrazole (PTZ) in rats. We also used atosiban (oxytocin antagonist), diazepam and flumazenil (gamma-aminobutyric acid or GABA-benzodiazepine receptor agonist and antagonist, respectively) to clarify the involved mechanism...
March 12, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28452086/the-effects-of-nifedipine-and-atosiban-on-perinatal-brain-injury-a-secondary-analysis-of-the-apostel-iii-trial
#6
T A J Nijman, M M Goedhart, C N Naaktgeboren, T R de Haan, D C Vijlbrief, B W Mol, M J N Benders, A Franx, M A Oudijk
OBJECTIVE: Brain injury in prematurely born neonates is strongly associated with poor neurodevelopmental outcome. The aim of our study is to evaluate if nifedipine reduces overall brain injury compared to atosiban in women with threatened preterm birth. METHODS: We performed a secondary analysis of the APOSTEL III-trial (Dutch Clinical Trial Registry, number NTR2947). This was a randomized clinical trial that allocated women with threatened preterm labor between 25-34 weeks of gestation to nifedipine or atosiban...
April 28, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28445928/regulation-of-angiogenic-behaviors-by-oxytocin-receptor-through-gli1-indcued-transcription-of-hif-1%C3%AE-in-human-umbilical-vein-endothelial-cells
#7
Ji Zhu, Huiyan Wang, Xiaoyan Zhang, Yin Xie
Angiogenesis is a dynamic hypoxia-stimulated process playing a key role in tissue growth and repair under various pathophysiological circumstances. Abnormal angiogenesis contributes to the pathogenesis of many human diseases. Oxytocin receptor is a classical G-protein-coupled receptor expressed on endothelial cells. The present study was aimed to investigate how oxytocin receptor regulated the angiogenic behaviors of human umbilical vein endothelial cells (HUVECs). We found that oxytocin at 0.1μM significantly increased cell proliferation, upregulated the mRNA and protein expression of CD31 and vWF (two important endothelial markers), and enhanced the tuber formation capacity in HUVECs...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28444988/inhibitory-action-of-oxytocin-on-spontaneous-contraction-of-rat-distal-colon-by-nitrergic-mechanism-involvement-of-cyclic-gmp-and-apamin-sensitive-k-channels
#8
R Wang, M T Han, X L Lv, Y A Yu, S Q Chai, C M Qu, C Y Liu
AIM: The mechanisms underlying the inhibitory effects of oxytocin (OT) on colon tone are not totally understood. We explore the mechanisms of OT on spontaneous contractility in rat distal colon and identify the mediators involved in this action. METHODS: In rat distal colon strips, mechanical activity was analysed and the production of nitric oxide (NO) in tissue loaded with the fluorochrome DAF-FM was visualized by confocal microscopy. OT receptor (OTR) expression was determined by Western blotting and immunofluorescence...
April 26, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28422984/the-impact-of-atosiban-on-pregnancy-outcomes-in-women-undergoing-in-vitro-fertilization-embryo-transfer-a-meta-analysis
#9
Qian-Yi Huang, Min-Hua Rong, Ai-Hua Lan, Xiao-Miao Lin, Xing-Gu Lin, Rong-Quan He, Gang Chen, Mu-Jun Li
BACKGROUND: Atosiban is administered to women undergoing in vitro fertilization-embryo transfer (IVF-ET) to improve pregnancy outcomes. However, the results of this treatment were controversial. We conducted this meta-analysis to investigate whether atosiban improves pregnancy outcomes in the women undergoing in vitro fertilization (IVF). METHODS: Databases of PubMed, EMBASE, Web of Science, China BioMedicine, and Google Scholar were systematically searched. Meta-analyses were performed to investigate whether atosiban improves pregnancy outcomes in the women undergoing IVF...
2017: PloS One
https://www.readbyqxmd.com/read/28259722/oxytocin-mitigated-the-depressive-like-behaviors-of-maternal-separation-stress-through-modulating-mitochondrial-function-and-neuroinflammation
#10
Hossein Amini-Khoei, Ali Mohammadi-Asl, Shayan Amiri, Mir-Jamal Hosseini, Majid Momeny, Mahsa Hassanipour, Mojgan Rastegar, Arya Haj-Mirzaian, Arvin Haj- Mirzaian, Hossein Sanjarimoghaddam, Shahram Ejtemaei Mehr, Ahmad Reza Dehpour
Mother-infant contact has a critical role on brain development and behavior. Experiencing early-life adversities (such as maternal separation stress or MS in rodents) results in adaptations of neurotransmission systems, which may subsequently increase the risk of depression symptoms later in life. In this study, we show that Oxytocin (OT) exerted antioxidant and anti-inflammatory properties. Previous studies indicate that neuroinflammation and mitochondrial dysfunction are associated with the pathophysiology of depression...
March 1, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28188254/differential-effects-of-oxytocin-receptor-antagonists-atosiban-and-nolasiban-on-oxytocin-receptor-mediated-signaling-in-human-amnion-and-myometrium
#11
Sung Hye Kim, Oliver Pohl, Andre Chollet, Jean-Pierre Gotteland, Adam D J Fairhurst, Phillip R Bennett, Vasso Terzidou
One of the most established roles of oxytocin (OT) is in inducing uterine contractions and labor. Apart from inducing contractions, our recent studies showed that OT can also activate proinflammatory pathways in both human myometrial and amnion cells, which suggests that the proinflammatory role of OT should be taken into account when developing tocolytics targeting the OT/oxytocin receptor (OTR) system. The OTR antagonist, atosiban, is currently used therapeutically for the treatment of preterm labor. We previously showed that atosiban fails to inhibit the proinflammatory effects of OT in human amnion; atosiban alone activates nuclear factor-κB (NF-κB) and mitogen activated protein kinases, thus upregulating downstream prolabor genes...
April 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28126898/atosiban-versus-fenoterol-as-a-uterine-relaxant-for-external-cephalic-version-randomised-controlled-trial
#12
RANDOMIZED CONTROLLED TRIAL
Joost Velzel, Floortje Vlemmix, Brent C Opmeer, Jan F M Molkenboer, Corine J Verhoeven, Mariëlle G van Pampus, Dimitri N M Papatsonis, Joke M J Bais, Karlijn C Vollebregt, Liesbeth van der Esch, Joris A M Van der Post, Ben Willem Mol, Marjolein Kok
OBJECTIVE:  To compare the effectiveness of the oxytocin receptor antagonist atosiban with the beta mimetic fenoterol as uterine relaxants in women undergoing external cephalic version (ECV) for breech presentation. DESIGN:  Multicentre, open label, randomised controlled trial. SETTING:  Eight hospitals in the Netherlands, August 2009 to May 2014. PARTICIPANTS:  830 women with a singleton fetus in breech presentation and a gestational age of more than 34 weeks were randomly allocated in a 1:1 ratio to either 6...
January 26, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28068594/prevention-of-spontaneous-preterm-birth-guidelines-for-clinical-practice-from-the-french-college-of-gynaecologists-and-obstetricians-cngof
#13
REVIEW
Loïc Sentilhes, Marie-Victoire Sénat, Pierre-Yves Ancel, Elie Azria, Guillaume Benoist, Julie Blanc, Gilles Brabant, Florence Bretelle, Stéphanie Brun, Muriel Doret, Chantal Ducroux-Schouwey, Anne Evrard, Gilles Kayem, Emeline Maisonneuve, Louis Marcellin, Stéphane Marret, Nicolas Mottet, Sabine Paysant, Didier Riethmuller, Patrick Rozenberg, Thomas Schmitz, Héloïse Torchin, Bruno Langer
In France, 60,000 neonates are born preterm every year (7.4%), half of them after the spontaneous onset of labor. Among preventable risk factors of spontaneous prematurity, only cessation of smoking is associated with decreased prematurity (level of evidence [LE]1). It is therefore recommended (Grade A). Routine screening and treatment of vaginal bacteriosis is not recommended in the general population (Grade A). The only population for which vaginal progesterone is recommended is that comprising asymptomatic women with singleton pregnancies, no history of preterm delivery, and a short cervix at 16-24 weeks of gestation (Grade B)...
March 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28029463/-tocolysis-for-preterm-labor-without-premature-preterm-rupture-of-membranes
#14
REVIEW
M Doret, G Kayem
OBJECTIVES: To propose guidelines for clinical practice for tocolysis in preterm labor without premature preterm rupture of the membranes (PPROM). MATERIALS AND METHODS: Bibliographic searches were performed in the Medline and Cochrane databases and gynecologist and obstetricians' international society guidelines. It is important to note that most studies included women in preterm labour with and without PPROM. RESULTS: Compared with placebo, tocolytics are not associated with a reduction in neonatal mortality or morbidity (LE2)...
December 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/28005161/-epidural-anesthesia-for-fetoscopy-retrospective-analysis-of-a%C3%A2-one-year-cohort
#15
N Kiefer, S F Suter, C Berg, U Gembruch, S U Weber
BACKGROUND: The introduction of routine prenatal screening using ultrasound has led to a substantial increase in diagnoses of fetal disorders that are amenable to intrauterine treatment. While an ultrasound guided insertion of small bore cannulas can be performed under local anesthesia, insertion of a fetoscope usually requires anesthetic management for the mother and the fetus. Additionally, the fetus' intrauterine position may have to be manipulated in order to enable access. Such manoeuvres depend on relaxation of the mother's abdominal wall...
January 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/27932062/experiencing-neonatal-maternal-separation-increased-pain-sensitivity-in-adult-male-mice-involvement-of-oxytocinergic-system
#16
Hossein Amini-Khoei, Shayan Amiri, Ali Mohammadi-Asl, Sakineh Alijanpour, Simin Poursaman, Arya Haj-Mirzaian, Mojgan Rastegar, Azam Mesdaghinia, Hamid Reza Banafshe, Ehsanollah Sadeghi, Elika Samiei, Shahram Ejtemaie Mehr, Ahmad Reza Dehpour
Early-life stress adversely affects the development of the brain, and alters a variety of behaviors such as pain in later life. In present study, we investigated how early-life stress (maternal separation or MS) can affect the nociceptive response later in life. We particularly focused on the role of oxytocin (OT) in regulating nociception in previously exposed (MS during early postnatal development) mice that were subjected to acute stress (restraint stress or RS). Further, we evaluated whether such modulation of pain sensation in MS mice are regulated by shared mechanisms of the OTergic and opioidergic systems...
February 2017: Neuropeptides
https://www.readbyqxmd.com/read/27922286/central-pontine-myelinolysis-during-pregnancy-pathogenesis-diagnosis-and-management
#17
María Luisa Sánchez-Ferrer, María Teresa Prieto-Sánchez, Rodrigo Orozco-Fernández, Francisco Machado-Linde, Anibal Nieto-Diaz
Central pontine myelinolysis (CPM) is a rare condition usually caused by rapid sodium correction in hyponatraemia after a severe neurological syndrome. Only few cases have been reported during pregnancy, most of which were reported in patients with hyperemesis. We describe the successful management of the first case of twin pregnancy in a patient who presented with CPM after treatment for premature labour and then review the literature on CPM in pregnancy (aetiology, diagnosis and management). Our patient required emergency delivery to achieve electrolyte and fluid balance...
December 6, 2016: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/27836377/-prevention-of-spontaneous-preterm-birth-excluding-preterm-premature-rupture-of-membranes-guidelines-for-clinical-practice%C3%A2-%C3%A2-text-of-the-guidelines-short-text
#18
REVIEW
L Sentilhes, M-V Sénat, P-Y Ancel, E Azria, G Benoist, J Blanc, G Brabant, F Bretelle, S Brun, M Doret, C Ducroux-Schouwey, A Evrard, G Kayem, E Maisonneuve, L Marcellin, S Marret, N Mottet, S Paysant, D Riethmuller, P Rozenberg, T Schmitz, H Torchin, B Langer
OBJECTIVES: To determine the measures to prevent spontaneous preterm birth (excluding preterm premature rupture of membranes)and its consequences. MATERIALS AND METHODS: The PubMed database, the Cochrane Library and the recommendations from the French and foreign obstetrical societies or colleges have been consulted. RESULTS: In France, premature birth concerns 60,000 neonates every year (7.4 %), half of them are delivered after spontaneous onset of labor...
December 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/27756155/effect-of-tocolytic-drugs-on-fetal-heart-rate-variability-a-systematic-review
#19
Kim M J Verdurmen, Alexandra D J Hulsenboom, Judith O E H van Laar, S Guid Oei
INTRODUCTION: Tocolytics may cause changes in fetal heart rate (HR) pattern, while fetal heart rate variability (HRV) is an important marker of fetal well-being. We aim to systematically review the literature on how tocolytic drugs affect fetal HRV. MATERIALS AND METHODS: We searched CENTRAL, PubMed and EMBASE up to June 2016. Studies published in English, using computerized or visual analysis to describe the effect of tocolytics on HRV in human fetuses were included...
October 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27717750/risk-pathway-is-involved-in-oxytocin-postconditioning-in-isolated-rat-heart
#20
Mirali Polshekan, Kadijeh Jamialahmadi, Vahid Khori, Ali Mohammad Alizadeh, Mohsen Saeidi, Majid Ghayour-Mobarhan, Yahya Jand, Mohammad Hossein Ghahremani, Yaghoub Yazdani
The reperfusion injury salvage kinase (RISK) pathway is a fundamental signal transduction cascade in the cardioprotective mechanism of ischemic postconditioning. In the present study, we examined the cardioprotective role of oxytocin as a postconditioning agent via activation of the RISK pathway (PI3K/Akt and ERK1/2). Animals were randomly divided into 6 groups. The hearts were subjected under 30minutes (min) ischemia and 100min reperfusion. OT was perfused 15min at the early phase of reperfusion. RISK pathway inhibitors (Wortmannin; an Akt inhibitor, PD98059; an ERK1/2 inhibitor) and Atosiban (an OT receptor antagonist) were applied either alone 10min before the onset of the ischemia or in the combination with OT during early reperfusion phase...
December 2016: Peptides
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