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https://www.readbyqxmd.com/read/28736329/cord-blood-eicosanoid-signatures-and-newborn-gestational-age
#1
Sandra Gouveia-Figueira, Dries S Martens, Tim S Nawrot, Malin L Nording
Beyond prostaglandins, the function of eicosanoids and other oxylipins in pregnancy and labor is poorly understood. In contrast to earlier work focusing on preterm infants, we investigated how oxylipin levels in newborns (measured in cord blood) vary during the last weeks of pregnancy in 190 mother-newborns (≥37 weeks of gestation) of the ENVIRONAGE birth cohort, Belgium. We found increased levels of PGE2 (p=0.003), PGF2α (p=0.042), 8,9-DHET (p=0.037), 11-HETE (p=0.034), and 15-HETrE (p=0.008) associated with full term pregnancy compared to early term labor...
July 20, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28735176/reduced-short-term-variation-following-antenatal-administration-of-betamethasone-is-reduced-fetal-size-a-predisposing-factor
#2
Tullio Ghi, Andrea Dall'Asta, Gabriele Saccone, Federica Bellussi, Tiziana Frusca, Pasquale Martinelli, Gianluigi Pilu, Nicola Rizzo
OBJECTIVE: To assess the association between fetal size and the incidence of reduced short-term variability (STV) following bethametasone administration for fetal lung maturity. STUDY DESIGN: This was a retrospective, multicenter, cohort study conducted in two Tertiary University Units. Only uncomplicated singleton pregnancies admitted for threatened preterm labor between 26 and 34 weeks and submitted to betamethasone for fetal lung maturity were included. Delivery occurring within 72h from betamethasone administration represented criteria for exclusion...
July 10, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28731129/expression-profile-of-c19mc-micrornas-in-placental-tissue-of-patients-with-preterm-prelabor-rupture-of-membranes-and-spontaneous-preterm-birth
#3
Ilona Hromadnikova, Katerina Kotlabova, Katarina Ivankova, Ladislav Krofta
The aim of the study was to demonstrate that preterm birth (PTB) is associated with altered C19MC microRNA expression profile in placental tissues. Gene expression of 15 placental specific microRNAs (miR‑512‑5p, miR‑515‑5p, miR‑516‑5p, miR‑517‑5p, miR‑518b, miR‑518f‑5p, miR‑519a, miR‑519d, miR‑519e‑5p, miR‑520a‑5p, miR‑520h, miR‑524‑5p, miR‑525‑5p, miR‑526a and miR‑526b‑5p) was compared between groups: 34 spontaneous PTB, 108 preterm prelabor rupture of membranes (PPROM) and 20 term in labor pregnancies...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28729012/evidence-that-children-born-at-early-term-37-38-6-7-weeks-are-at-increased-risk-for-diabetes-and-obesity-related-disorders
#4
Dorit Paz Levy, Eyal Sheiner, Tamar Wainstock, Ruslan Sergienko, Daniella Landau, Asnat Walfisch
BACKGROUND: Prematurity is known to be associated with high rates of endocrine and metabolic complications in the offspring. Early term (37 0/7-38 6/7 weeks' gestation) born offspring were also shown to exhibit long term morbidity resembling that of late preterm, in several health categories. OBJECTIVE: We aimed to determine whether early term delivery impacts on the long-term endocrine and metabolic health of the offspring. STUDY DESIGN: A population-based cohort analysis was performed, including all term singleton deliveries occurring during 1991-2013 at a single regional tertiary medical center...
July 17, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28723418/beta3-adrenergic-receptor-stimulation-in-human-macrophages-inhibits-nadphoxidase-activity-and-induces-catalase-expresssion-via-ppar%C3%AE-activation
#5
Tarik Hadi, Romain Douhard, Alexandre M M Dias, Maeva Wendremaire, Maria Pezzè, Marc Bardou, Paul Sagot, Carmen Garrido, Frédéric Lirussi
The beta3 adrenergic receptor (β3-AR) stimulation plays a protective role against preterm labor by blocking myometrial contraction, cytokine production, remodeling and apoptosis. We previously demonstrated that macrophage-induced ROS production in the myometrium was a key element leading to the induction of all these labor-associated features. We thus aimed to investigate if the β3-AR could be expressed in human macrophages and could trigger its protective role in the myometrium by directly inhibiting ROS production...
July 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28720399/prenatal-and-postnatal-administration-of-prebiotics-and-probiotics
#6
REVIEW
Kristin Sohn, Mark A Underwood
Colonization of the neonatal gut by beneficial bacteria is important for the establishment and maintenance of the mucosal barrier, thus protecting the neonate from enteric pathogens and local and systemic inflammation. The neonatal microbiome is influenced by infant diet, environment, and the maternal microbiome. Dysbiosis in pregnancy increases the risk of pre-eclampsia, diabetes, infection, preterm labor, and later childhood atopy. Dysbiosis of the neonatal gut plays an important role in colic in the term infant, in the disease processes which plague preterm infants, including necrotizing enterocolitis and sepsis, and in the long-term outcomes of neonates...
July 15, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28716915/prostaglandin-dehydrogenase-is-a-target-for-successful-induction-of-cervical-ripening
#7
Annavarapu Hari Kishore, Hanquan Liang, Mohammed Kanchwala, Chao Xing, Thota Ganesh, Yucel Akgul, Bruce Posner, Joseph M Ready, Sanford D Markowitz, Ruth Ann Word
The cervix represents a formidable structural barrier for successful induction of labor. Approximately 10% of pregnancies undergo induction of cervical ripening and labor with prostaglandin (PG) E2 or PGE analogs, often requiring many hours of hospitalization and monitoring. On the other hand, preterm cervical ripening in the second trimester predicts preterm birth. The regulatory mechanisms of this paradoxical function of the cervix are unknown. Here, we show that PGE2 uses cell-specific EP2 receptor-mediated increases in Ca(2+) to dephosphorylate and translocate histone deacetylase 4 (HDAC4) to the nucleus for repression of 15-hydroxy prostaglandin dehydrogenase (15-PGDH)...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28715920/genital-tract-gbs-and-rate-of-histologic-chorioamnionitis-in-patients-with-preterm-premature-rupture-of-membrane
#8
Krunal Patel, Shauna Williams, George Guirguis, Lisa Gittens-Williams, Joseph Apuzzio
INTRODUCTION: Histologic chorioamnionitis (HC) is a common finding in the placenta from patients with preterm premature rupture of membranes (PPROM). The purpose of this study is to determine if HC differs based on the Group B streptococcus (GBS) status in patients managed expectantly with PPROM <34 weeks gestation. METHODS: A retrospective study was performed of patients admitted with PPROM between 23 0/7 and 33 6/7 weeks from 2003 to 2014 at one institution...
July 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28715801/fetal-urine-production-rate-in-preterm-premature-rupture-of-membranes-is-associated-with-adverse-neonatal-outcome-a-pilot-study
#9
Tehila Avitan, Lior Drukker, Hadass Pri-Chen, Ron Rabinowitz, Nurit Algur, Michael S Schimmel, Letizia Schreiber, Tali Bdolah-Abram, Arnon Samueloff, Sorina Grisaru-Granovsky
AIM: In this study, we evaluate the associations between fetal urinary production rate (FUPR), measured by ultrasound, and adverse neonatal outcome in women with preterm premature rupture of membranes (PPROM). METHODS: We conducted a prospective pilot cohort of singleton pregnancies complicated by PPROM occurring at gestational week 24 or later managed until spontaneous labor (after 48 h of admission), chorioamnionitis, or induction by protocol at 35 + 0 weeks. FUPR was evaluated by 2D sonography at admission (corrected for gestational age)...
July 18, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28713594/small-molecule-big-prospects-microrna-in-pregnancy-and-its-complications
#10
REVIEW
Meng Cai, Gopi K Kolluru, Asif Ahmed
MicroRNAs are small, noncoding RNA molecules that regulate target gene expression in the posttranscriptional level. Unlike siRNA, microRNAs are "fine-tuners" rather than "switches" in the regulation of gene expression; thus they play key roles in maintaining tissue homeostasis. The aberrant microRNA expression is implicated in the disease process. To date, numerous studies have demonstrated the regulatory roles of microRNAs in various pathophysiological conditions. In contrast, the study of microRNA in pregnancy and its associated complications, such as preeclampsia (PE), fetal growth restriction (FGR), and preterm labor, is a young field...
2017: Journal of Pregnancy
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
#11
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/28706457/relaxant-and-anti-inflammatory-effect-of-two-thalidomide-analogs-as-pde-4-inhibitors-in-pregnant-rat-uterus
#12
Víctor Manuel Muñoz-Pérez, Eduardo Fernández-Martínez, Héctor Ponce-Monter, Mario I Ortiz
The aim of this study was to evaluate the relaxant and anti-inflammatory effects of two thalidomide analogs as phosphodiesterase-4 (PDE-4) inhibitors in pregnant rat uterus. Uteri from Wistar female rats were isolated at 19 day of pregnancy. Uterine samples were used in functional studies to evaluate the inhibitory effects of the thalidomide analogs, methyl 3-(4-nitrophthalimido)-3-(3,4-dimethoxyphenyl)-propanoate (4NO2PDPMe) and methyl 3-(4-aminophthalimido)-3-(3,4-dimethoxyphenyl)-propanoate (4APDPMe), on prostaglandin-F2α (PGF2α)-induced phasic, K(+)-induced tonic, and Ca(2+)-induced contractions...
July 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28706170/-multiple-factors-in-the-second-trimester-of-pregnancy-on-preterm-labor-symptoms-and-preterm-birth
#13
Jeung Im Kim, Mi Ock Cho, Gyu Yeon Choi
PURPOSE: The aim of this study was to determine the influence of various factors on preterm labor symptoms (PLS) and preterm birth (PB). METHODS: This prospective cohort study included 193 women in the second stage of pregnancy. Multiple characteristics including body mass index (BMI), smoking, and pregnancy complications were collected through a self-report questionnaire. Pregnancy stress and PLS were each measured with a related scale. Cervical length and birth outcome were evaluated from medical charts...
June 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/28704849/prevention-of-preterm-labor-with-17%C3%AE-hydroxyprogesterone-17ohp-caproate-a-comparison-of-adverse-drug-reaction-rates-between-compounded-and-commercial-formulations
#14
Rebecca H Stone, Christina Bobowski, Nataliya Milikhiker, Rebekah H Anguiano, Dimitrios Mastrogiannis
No abstract text is available yet for this article.
July 13, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28699378/reasons-for-cesarean-and-medically-indicated-deliveries-in-pregnancies-in-women-with-systemic-lupus-erythematosus
#15
A M Eudy, M Jayasundara, T Haroun, L Neil, A H James, M E B Clowse
Objective To determine reasons for cesarean and medically indicated deliveries in a registry of pregnant women with SLE compared to RA. Methods Pregnant women with SLE or RA were prospectively followed, and pregnancy outcomes were collected, including whether labor was spontaneous or medically indicated and delivery was vaginal or cesarean. Preterm birth was defined as a birth <37 weeks gestation. Differences in reasons for cesarean delivery and indication of delivery between term and preterm births were determined by Fisher's exact test...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28699189/human-papillomavirus-infects-placental-trophoblast-and-hofbauer-cells-but-appears-not-to-play-a-causal-role-in-miscarriage-and-preterm-labor
#16
Lea Maria Margareta Ambühl, Anne Katrine Leonhard, Carina Widen Zakhary, Annemette Jørgensen, Jan Blaakaer, Karen Dybkaer, Ulrik Baandrup, Niels Uldbjerg, Suzette Sørensen
INTRODUCTION: Recently, an association between human papillomavirus (HPV) infection and both spontaneous abortion and spontaneous preterm delivery was suggested. However, the reported HPV prevalence in pregnant women varies considerably and reliable conclusions are difficult. We aimed to investigate HPV infection in placental tissue of a Danish study cohort. Furthermore, we studied the cellular localization of HPV. MATERIAL AND METHODS: In this prospective case-control study, placental tissue was analyzed for HPV infection by nested PCR in the following four study groups: full-term delivery (n=103), spontaneous preterm delivery (n=69), elective abortion (n=54), and spontaneous abortion (n=44)...
July 12, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28699095/maternal-education-gradients-in-infant-health-in-four-south-american-countries
#17
George L Wehby, Jorge S López-Camelo
Objective We investigate gradients (i.e. differences) in infant health outcomes by maternal education in Argentina, Brazil, Chile, and Venezuela and explore channels related to father's education, household labor outcomes, and maternal health, fertility, and use of prenatal services and technology. Methods We employ secondary interview and birth record data similarly collected across a network of birth hospitals from the early 1980s through 2011 within the Latin American Collaborative Study of Congenital Anomalies (ECLAMC)...
July 11, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28692959/dedicated-entropy-measures-for-early-assessment-of-pregnancy-progression-from-single-channel-electrohysterography
#18
Massimo Mischi, Chuan Chen, Tanya Ignatenko, Hinke de Lau, Beijing Ding, Guid S Oei, Chiara Rabotti
OBJECTIVE: Preterm birth is a large-scale clinical problem involving over 10% infants. Diagnostic means for timely risk assessment are lacking and the underlying physiological mechanisms unclear. To improve the evaluation of pregnancy before term, we introduce dedicated entropy measures derived from a single-channel electrohysterogram (EHG). METHODS: The estimation of Approximate Entropy (ApEn) and Sample Entropy (SampEn) is adjusted to monitor variations in the regularity of single-channel EHG recordings, reflecting myoelectrical changes due to pregnancy progression...
July 10, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28689331/pathophysiology-and-current-clinical-management-of-preeclampsia
#19
REVIEW
Lorena M Amaral, Kedra Wallace, Michelle Owens, Babbette LaMarca
Preeclampsia is characterized by blood pressure greater than 140/90 mmHg in the second half of pregnancy. This disease is a major contributor to preterm and low birth weight babies. The early delivery of the baby, which becomes necessary for maintaining maternal well-being, makes preeclampsia the leading cause for preterm labor and infant mortality and morbidity. Currently, there is no cure for this pregnancy disorder. The current clinical management of PE is hydralazine with labetalol and magnesium sulfate to slow disease progression and prevent maternal seizure, and hopefully prolong the pregnancy...
August 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28683889/pregnancy-outcomes-in-female-physicians-in-procedural-versus-non-procedural-specialties
#20
Rebecca E Scully, Amy R Stagg, Nelya Melnitchouk, Jennifer S Davids
BACKGROUND: Procedural based medical specialties require a longer training period and more intensive physical demands. The impact of working in procedural versus nonprocedural fields on pregnancy outcomes is not well understood. METHODS: Data from 1559 US attending female physician mothers was gathered via an anonymous, IRB-approved online survey. RESULTS: Of the cohort, 400 (25.7%) reported practicing in a procedural field. Women in procedural fields were slightly older at the time of their most recent pregnancy...
June 24, 2017: American Journal of Surgery
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