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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
#1
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...
November 8, 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/27817049/overexpression-of-endogenous-anti-oxidants-with-selenium-supplementation-protects-trophoblast-cells-from-reactive-oxygen-species-induced-apoptosis-in-a-bcl-2-dependent-manner
#2
Alisha Khera, Jessica J Vanderlelie, Olivia Holland, Anthony V Perkins
The human placenta provides life support for the developing foetus, and a healthy placenta is a prerequisite to a healthy start to life. Placental tissue is subject to oxidative stress which can lead to pathological conditions of pregnancy such as preeclampsia, preterm labour and intrauterine growth restriction. Up-regulation of endogenous anti-oxidants may alleviate placental oxidative stress and provide a therapy for these complications of pregnancy. In this study, selenium supplementation, as inorganic sodium selenite (NaSel) or organic selenomethionine (SeMet), was used to increase the protein production and cellular activity of the important redox active proteins glutathione peroxidase (GPx) and thioredoxin reductase (Thx-Red)...
November 5, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27647837/adherence-to-a-lifestyle-programme-in-overweight-obese-pregnant-women-and-effect-on-gestational-diabetes-mellitus-a-randomized-controlled-trial
#3
Raffaele Bruno, Elisabetta Petrella, Valentina Bertarini, Giulia Pedrielli, Isabella Neri, Fabio Facchinetti
This study aims to determine whether the prescription of a detailed lifestyle programme in overweight/obese pregnant women influences the occurrence of gestational diabetes (GDM), and if this kind of prescription increases the adherence to a healthier lifestyle in comparison to standard care. The study was designed as a randomized controlled trial, with open allocation, enrolling women at 9-12 weeks of pregnancy with a BMI ≥ 25 kg/m(2) . The women assigned to the Intervention group (I = 96) received a hypocaloric, low-glycaemic, low-saturated fat diet and physical activity recommendations...
September 19, 2016: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/27630746/oxidative-stress-in-pregnancy-and-reproduction
#4
REVIEW
Kate Duhig, Lucy C Chappell, Andrew H Shennan
Oxidative stress is implicated in the pathophysiology of many reproductive complications including infertility, miscarriage, pre-eclampsia, fetal growth restriction and preterm labour. The presence of excess reactive oxygen species can lead to cellular damage of deoxyribonucleic acids, lipids and proteins. Antioxidants protect cells from peroxidation reactions, limiting cellular damage and helping to maintain cellular membrane integrity. There is overwhelming evidence for oxidative stress causing harm in reproduction...
September 2016: Obstetric Medicine
https://www.readbyqxmd.com/read/27545716/preventing-newborn-deaths-due-to-prematurity
#5
Kishwar Azad, Jiji Mathews
Preterm births (PTBs), defined as births before 37 weeks of gestation account for the majority of deaths in the newborn period. Prediction and prevention of PTB is challenging. A history of preterm labour or second trimester losses and accurate measurement of cervical length help to identify women who would benefit from progesterone and cerclage. Fibronectin estimation in the cervicovaginal secretions of a symptomatic woman with an undilated cervix can predict PTB within 10 days of testing. Antibiotics should be given to women with preterm prelabour rupture of membranes but tocolysis has a limited role in the management of preterm labour...
June 24, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27328735/differential-impact-of-acute-and-prolonged-camp-agonist-exposure-on-protein-kinase-a-activation-and-human-myometrium-contractile-activity
#6
Pei F Lai, Rachel M Tribe, Mark R Johnson
KEY POINTS: Over 15 million babies are born prematurely each year with approximately 1 million of these babies dying as a direct result of preterm delivery. β2 -Adrenoreceptor agonists that act via cAMP can reduce uterine contractions to delay preterm labour, but their ability to repress uterine contractions lasts ≤ 48 h and their use does not improve neonatal outcomes. Previous research has suggested that cAMP inhibits myometrial contractions via protein kinase A (PKA) activation, but this has yet to be demonstrated with PKA-specific agonists...
November 1, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27220952/molecular-evidence-of-functional-progesterone-withdrawal-in-human-myometrium
#7
Lubna Nadeem, Oksana Shynlova, Elzbieta Matysiak-Zablocki, Sam Mesiano, Xuesen Dong, Stephen Lye
Progesterone suppresses uterine contractility acting through its receptors (PRA/B). The mechanism by which human labour is initiated in the presence of elevated circulating progesterone has remained an enigma since Csapo first theorized of a functional withdrawal of progesterone in 1965. Here we report that in vitro progesterone-liganded nuclear PRB forms a complex including JUN/JUN homodimers and P54(nrb)/Sin3A/HDAC to repress transcription of the key labour gene, Cx43. In contrast, unliganded PRA paradoxically activates Cx43 transcription by interacting with FRA2/JUND heterodimers...
2016: Nature Communications
https://www.readbyqxmd.com/read/27176052/transcription-analysis-of-the-myometrium-of-labouring-and-non-labouring-women
#8
Gemma C Sharp, James L Hutchinson, Nanette Hibbert, Tom C Freeman, Philippa T K Saunders, Jane E Norman
An incomplete understanding of the molecular mechanisms that initiate normal human labour at term seriously hampers the development of effective ways to predict, prevent and treat disorders such as preterm labour. Appropriate analysis of large microarray experiments that compare gene expression in non-labouring and labouring gestational tissues is necessary to help bridge these gaps in our knowledge. In this work, gene expression in 48 (22 labouring, 26 non-labouring) lower-segment myometrial samples collected at Caesarean section were analysed using Illumina HT-12 v4...
2016: PloS One
https://www.readbyqxmd.com/read/27159501/the-safety-of-tocolytics-used-for-the-inhibition-of-preterm-labour
#9
Callum D Lamont, Jan Stener Jørgensen, Ronald F Lamont
INTRODUCTION: Preterm birth is the major cause of neonatal mortality and morbidity worldwide and a huge cost burden on healthcare. Between 22 and 26 completed weeks of gestation, for every day that delivery is delayed, survival increases by 3%. AREAS COVERED: Following a systematic review of the literature, we have provided an overview of the use of tocolytics for the prevention of preterm birth and have examined the fetal and maternal adverse effects of the various tocolytic agents currently in use...
September 2016: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/27145132/inter-pregnancy-weight-change-and-the-risk-of-recurrent-pregnancy-complications
#10
Jacqueline M Wallace, Sohinee Bhattacharya, Doris M Campbell, Graham W Horgan
Women with specific adverse pregnancy outcomes in their first pregnancy may be receptive to inter-pregnancy weight management guidance aimed at preventing these complications reoccurring in subsequent pregnancies. Thus the association between inter-pregnancy weight change and the risk of recurrent pregnancy complications at the second pregnancy was investigated in a retrospective cohort study of 24,520 women with their first-ever and second consecutive deliveries in Aberdeen using logistic regression. Compared with women who were weight stable, weight loss (>2BMI units) between pregnancies was associated with an increased risk of recurrent small for gestational age (SGA) birth and elective Cesarean-section, and was protective against recurrent pre-eclampsia, placental oversize and large for gestational age (LGA) birth...
2016: PloS One
https://www.readbyqxmd.com/read/27072119/reproductive-maternal-newborn-and-child-health-key-messages-from-disease-control-priorities-3rd-edition
#11
Robert E Black, Carol Levin, Neff Walker, Doris Chou, Li Liu, Marleen Temmerman
As part of Disease Control Priorities 3rd Edition, the World Bank will publish a volume on Reproductive, Maternal, Newborn, and Child Health that identifies essential cost-effective health interventions that can be scaled up to reduce maternal, newborn, and child deaths, and stillbirths. This Review summarises the volume's key findings and estimates the effect and cost of expanded implementation of these interventions. Recognising that a continuum of care from the adolescent girl, woman, or mother to child is needed, the volume includes details of preventive and therapeutic health interventions in integrated packages: Maternal and Newborn Health and Child Health (along with folic acid supplementation, a key reproductive health intervention)...
April 8, 2016: Lancet
https://www.readbyqxmd.com/read/26896593/transabdominal-cerclage-preconceptual-versus-first-trimester-insertion
#12
Feroza Dawood, Roy Gibb Farquharson
OBJECTIVE: Transabdominal cerclage (TAC) is an effective intervention to prevent spontaneous mid-trimester loss and preterm delivery when a transvaginal cerclage has failed. A TAC may be inserted during the first trimester of pregnancy or preconceptually. The objective of this study was to determine whether or not preconceptual transabdominal cerclage (TAC) confers any benefit over first trimester TAC insertion in terms of associated surgical and pregnancy-related morbidity and subsequent pregnancy outcome...
April 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/26794078/stillbirths-rates-risk-factors-and-acceleration-towards-2030
#13
REVIEW
Joy E Lawn, Hannah Blencowe, Peter Waiswa, Agbessi Amouzou, Colin Mathers, Dan Hogan, Vicki Flenady, J Frederik Frøen, Zeshan U Qureshi, Claire Calderwood, Suhail Shiekh, Fiorella Bianchi Jassir, Danzhen You, Elizabeth M McClure, Matthews Mathai, Simon Cousens
An estimated 2.6 million third trimester stillbirths occurred in 2015 (uncertainty range 2.4-3.0 million). The number of stillbirths has reduced more slowly than has maternal mortality or mortality in children younger than 5 years, which were explicitly targeted in the Millennium Development Goals. The Every Newborn Action Plan has the target of 12 or fewer stillbirths per 1000 births in every country by 2030. 94 mainly high-income countries and upper middle-income countries have already met this target, although with noticeable disparities...
February 6, 2016: Lancet
https://www.readbyqxmd.com/read/26733542/copper-metabolism-domain-containing-1-represses-the-mediators-involved-in-the-terminal-effector-pathways-of-human-labour-and-delivery
#14
Martha Lappas
STUDY HYPOTHESIS: Does Copper Metabolism MURR1 Domain 1 (COMMD1) play a role in regulating the mediators involved in the terminal processes of human labour and delivery? STUDY FINDING: COMMD1 plays a critical role in the termination of nuclear factor-κB (NF-κB) activity and the control of pro-inflammatory and pro-labour mediators. WHAT IS KNOWN ALREADY: Inflammation and infection are the biggest aetiological factors associated with preterm birth...
April 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/26684353/use-of-hydroxyprogesterone-caproate-to-prevent-preterm-labour-in-uterine-didelphys-a-case-report
#15
Keat Sim Ng, Beng Kwang Ng, Pei Shan Lim, Mohd Nasir Shafiee, Abdul Kadir Abdul Karim, Mohd Hashim Omar
Congenital uterine anomalies have been associated with poor reproductive outcome, which include recurrent miscarriage, abruptio placenta, intra-uterine growth restriction and preterm delivery. Here, we report a case: 36 years old, G3P2, known case of uterine didelphys, with history of preterm birth, who successfully carried her pregnancy till term with weekly intramuscular injection of 250 mg hydroxyprogesterone caproate (®Proluton Depot, Zuellig Pharma).
September 1, 2016: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/26662716/different-treatment-regimens-of-magnesium-sulphate-for-tocolysis-in-women-in-preterm-labour
#16
REVIEW
Helen C McNamara, Caroline A Crowther, Julie Brown
BACKGROUND: Magnesium sulphate has been used to inhibit preterm labour to prevent preterm birth. There is no consensus as to the safety profile of different treatment regimens with respect to dose, duration, route and timing of administration. OBJECTIVES: To assess the efficacy and safety of alternative magnesium sulphate regimens when used as single agent tocolytic therapy during pregnancy. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 September 2015) and reference lists of retrieved studies...
December 14, 2015: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/26645888/prophylactic-oral-betamimetics-for-reducing-preterm-birth-in-women-with-a-twin-pregnancy
#17
REVIEW
Waralak Yamasmit, Surasith Chaithongwongwatthana, Jorge E Tolosa, Sompop Limpongsanurak, Leonardo Pereira, Pisake Lumbiganon
BACKGROUND: Twin pregnancies are associated with a high risk of neonatal mortality and morbidity due to an increased rate of preterm birth. Betamimetics can decrease contraction frequency or delay preterm birth in singleton pregnancies by 24 to 48 hours. The efficacy of oral betamimetics in women with a twin pregnancy is unproven. OBJECTIVES: To assess the effectiveness of prophylactic oral betamimetics for the prevention of preterm labour and birth for women with twin pregnancies...
2015: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/26605446/is-preterm-premature-rupture-of-membranes-latency-influenced-by-single-versus-multiple-agent-antibiotic-prophylaxis-in-group-b-streptococcus-positive-women-delivering-preterm
#18
COMPARATIVE STUDY
Anita Smith, Victoria M Allen, Jennifer Walsh, Krista Jangaard, Colleen M O'Connell
OBJECTIVE: To evaluate the influence of antibiotic regimen on the duration of latency (time from preterm pre-labour rupture of membranes [PPROM] to delivery) and significant infectious neonatal morbidity from rupture of membranes to delivery < 37 weeks' gestational age in women known to be group B Streptococcus (GBS) positive. METHODS: We obtained data from the Nova Scotia Atlee Perinatal Database. In a retrospective, cohort, population-based study, we included pregnancies complicated by PPROM but excluded pregnancies in this group requiring immediate delivery...
September 2015: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/26556421/a-study-on-the-association-between-low-maternal-serum-magnesium-level-and-preterm-labour
#19
Kehinde S Okunade, Ayodeji A Oluwole, Maymunah A Adegbesan-Omilabu
Objectives. The study was aimed to assess the association between low maternal serum magnesium levels and preterm labour. Methods. It is a cross-sectional case-control study in which eligible participants were pregnant women admitted in labour within the labour ward complex of a Lagos tertiary hospital. Relevant data were extracted from the case records of these women and blood samples were obtained from all participants and serum magnesium levels measured. Results. The study showed that 36% of the study patients had varying degrees of hypomagnesaemia...
2014: Advances in Medicine
https://www.readbyqxmd.com/read/26545961/autophagy-which-is-decreased-in-labouring-fetal-membranes-regulates-il-1%C3%AE-production-via-the-inflammasome
#20
Amelia Brickle, Ha Thi Tran, Ratana Lim, Stella Liong, Martha Lappas
INTRODUCTION: IL-1β plays a vital role in the terminal processes of human labour and delivery. Inflammasome activation is required to process pro IL-1β to an active, secreted molecule. Recent studies have shown that autophagy regulates IL-1β via the inflammasome. The aims were to determine the effect of (i) human spontaneous term and preterm labour on the expression of autophagy proteins in fetal membranes; and (ii) autophagy inhibition on IL-1β release. METHODS: Fetal membranes, from term and preterm, were obtained from non-labouring and labouring women...
December 2015: Placenta
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