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Preterm labor

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https://www.readbyqxmd.com/read/29044425/smad7-regulates-proinflammatory-and-prolabor-mediators-in-amnion-and-myometrium
#1
Ratana Lim, Gillian Barker, Martha Lappas
Preterm birth continues to be a significant public health problem. Infection (bacterial and or viral) and inflammation, by stimulating proinflammatory cytokines, adhesion molecules, and matrix metalloproteinase 9 (MMP9), play a central role in the rupture of membranes and myometrial contractions. SMAD7 has been implicated in regulating the inflammatory response; however, no studies have been performed with regard to human labor. In this study, we determined the effect of spontaneous human labor and prolabor mediators on SMAD7 expression in myometrium and fetal membranes...
August 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29042802/utilization-of-fetal-fibronectin-testing-and-pregnancy-outcomes-among-women-with-symptoms-of-preterm-labor
#2
Sean C Blackwell, Erin M Sullivan, Allison A Petrilla, Xian Shen, Kathleen A Troeger, James D Byrne
OBJECTIVES: To identify pregnant health plan members triaged through the emergency department (ED), including labor and delivery (ELD) units, with symptoms of preterm labor (PTL), and evaluate the use of fetal fibronectin (fFN) testing; and to calculate the rate of hospitalization and timing of delivery in relation to the ED visit. METHODS: Retrospective cohort study using Medical Outcomes Research for Effectiveness and Economics Registry(®), a national multipayer claims database...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/29022924/listeriosis-in-pregnancy-under-diagnosis-despite-over-treatment
#3
Y Fouks, S Amit, A Many, A Haham, D Mandel, S Shinar
OBJECTIVE: To compare the symptomatology of pregnant women with suspected listeriosis to culture confirmed listeriosis. STUDY DESIGN: All cases of suspected and culture confirmed pregnancy-associated listeriosis from a single center were retrospectively reviewed assessing demographics, clinical, laboratory and pathological findings, and maternal, fetal and neonatal outcomes. RESULTS: Listeriosis was identified in seven patients, none of whom belonged to the 117 women with suspected listeriosis...
October 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29020827/the-frequency-and-clinical-significance-of-intra-amniotic-inflammation-in-twin-pregnancies-with-preterm-labor-and-intact-membranes
#4
Kyung Joon Oh, Joon-Seok Hong, Roberto Romero, Bo Hyun Yoon
OBJECTIVE: The objective of this study is to evaluate the frequency and clinical significance of intra-amniotic inflammation in twin pregnancies with preterm labor and intact membranes. STUDY DESIGN: Amniotic fluid (AF) was retrieved from both sacs in 90 twin gestations with preterm labor and intact membranes (gestational age between 20 and 34 6/7 weeks). Preterm labor was defined as the presence of painful regular uterine contractions, with a frequency of at least 2 every 10 min, requiring hospitalization...
October 11, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29020789/-the-role-of-maternal-imunity-and-woman%C3%A2-s-microbiome-in-the-pathogenesis-of-preterm-labor
#5
M Koucký, K Malíčková, J Hrdý, A Černý, H Hrbáčková, P Šimják, A Pařízek
OBJECTIVE: To summarize available data concerning the role of maternal imunity and woman´s microbiome in the pathogenesis of preterm labor and their use in clinical practice. SETTING: Department of Obstetrics and Gynecology od the First Faculty of Medicine, Charles University in Prague, and General Teaching Hospital. DESIGN: Review article. METHODS: Compilation od published data from scientific literature. CONCLUSION: Preterm labor complicates approximately 10% of all pregnancies and represents a serious medical, social and economic problem...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/29020025/worry-about-racial-discrimination-a-missing-piece-of-the-puzzle-of-black-white-disparities-in-preterm-birth
#6
Paula Braveman, Katherine Heck, Susan Egerter, Tyan Parker Dominguez, Christine Rinki, Kristen S Marchi, Michael Curtis
OBJECTIVES: The causes of the large and persistent Black-White disparity in preterm birth (PTB) are unknown. It is biologically plausible that chronic stress across a woman's life course could be a contributor. Prior research suggests that chronic worry about experiencing racial discrimination could affect PTB through neuroendocrine, vascular, or immune mechanisms involved in both responses to stress and the initiation of labor. This study aimed to examine the role of chronic worry about racial discrimination in Black-White disparities in PTB...
2017: PloS One
https://www.readbyqxmd.com/read/29016494/maternal-and-neonatal-outcomes-in-indicated-preterm-births-based-on-the-intended-mode-of-delivery
#7
Spencer G Kuper, Rachel A Sievert, Robin Steele, Joseph R Biggio, Alan T Tita, Lorie M Harper
OBJECTIVE: To compare maternal and neonatal outcomes in women who underwent induction of labor or planned cesarean delivery in indicated preterm births before 34 weeks of gestation. METHODS: We conducted a retrospective cohort study of all indicated singleton preterm births (23-34 weeks of gestation) in a tertiary center from 2011 to 2014. The primary maternal outcome was a composite of early postpartum hemorrhage, blood transfusion, operative complications, postpartum complications, and clinical chorioamnionitis...
October 6, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29016488/pregnancy-outcomes-among-deaf-women-in-washington-state-1987-2012
#8
Melissa A Schiff, David R Doody, Deborah A Crane, Beth A Mueller
OBJECTIVE: To evaluate pregnancy and neonatal outcomes among deaf women using population-based vital records data in Washington State from 1987 to 2012. METHODS: We performed a retrospective cohort study using the Washington State birth and fetal death records linked to state hospital discharge records to identify women with diagnosis codes for deafness indicated at their delivery hospitalization and compared them with randomly selected women without these codes...
October 6, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28992892/obstetric-risk-factors-for-depression-during-the-postpartum-period-in-south-korea-a-nationwide-study
#9
HyunChul Youn, Suji Lee, Sung Won Han, Log Young Kim, Tae-Seon Lee, Min-Jeong Oh, Hyun-Ghang Jeong, Geum Joon Cho
OBJECTIVE: Postpartum depression is related to many adverse effects in both mothers and their children; therefore, proper screening and early interventions are needed. This study aims to identify the risk factors of postpartum depression. Our primary focus is on obstetric risk factors. METHODS: This study is a cross-sectional study which we extracted the data of women who gave birth between January 1st, 2010 and December 31st, 2012 from the Health Insurance Review and Assessment service (HIRA) database...
November 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28988636/-maternal-anxiety-related-to-how-the-pediatrician-provided-prenatal-information-about-preterm-birth
#10
C Dekens, C Fontaine, E Carpentier, L Barcat, J Gondry, P Tourneux
INTRODUCTION: Women hospitalized for preterm labor require clear information about prematurity. This study assessed whether or not specific written information about prematurity delivered at admission to the unit combined with an oral explanation from a pediatrician would decrease women's anxiety compared to an oral explanation alone. MATERIAL AND METHODS: This was a prospective, single-center observational study. Women were included in the high-risk pregnancies department and distributed into two groups: receiving "only oral" information for a prenatal clinical consultation with a senior pediatrician or receiving "combined" oral information+a booklet about prematurity given to the women at admission...
October 4, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28985318/nonhuman-primates-a-vital-model-for-basic-and-applied-research-on-female-reproduction-prenatal-development-and-women-s-health
#11
Richard L Stouffer, Teresa K Woodruff
The comparative biology of reproduction and development in mammalian species is remarkable. Hence, because of similarities in environmental and neuroendocrine control of the reproductive axis, the cyclic function of the ovary and reproductive tract, establishment and control of the maternal-fetal-placental unit during pregnancy, and reproductive aging from puberty through menopause, nonhuman primates (NHPs) are valuable models for research related to women's reproductive health and its disorders. This chapter provides examples of research over the past 10+ years using Old World monkeys (notably macaque species), baboons, and to a lesser extent New World monkeys (especially marmosets) that contributed to our understanding of the etiology and therapies or prevention of: (1) ovarian disorders, e...
August 28, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28976078/platelet-indices-in-preterm-premature-rupture-of-membranes-and-their-relation-with-adverse-neonatal-outcomes
#12
Betul Dundar, Burcu Dincgez Cakmak, Gulten Ozgen, Fatma Nurgul Tasgoz, Tugberk Guclu, Gokhan Ocakoglu
AIM: Preterm premature rupture of membranes (PPROM) is not only the most common distinguishable cause of preterm delivery, but is also associated with adverse neonatal outcomes. We determined the platelet indices in PPROM cases and evaluated their relationship to adverse neonatal outcomes. METHODS: Fifty patients with PPROM and 50 patients who experienced spontaneous preterm labor at < 37 gestational weeks were evaluated. Complete blood counts, birth weights, Apgar scores, presence of sepsis and respiratory distress syndrome (RDS) and neonatal intensive care unit admission were recorded...
October 4, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28971027/hospital-trauma-level-s-association-with-outcomes-for-injured-pregnant-women-and-their-neonates-in-washington-state-1995-2012
#13
John Thomas Distelhorst, Michele A Soltis, Vijay Krishnamoorthy, Melissa A Schiff
BACKGROUND: Trauma occurs in 8% of all pregnancies. To date, no studies have evaluated the effect of the hospital's trauma designation level as it relates to birth outcomes for injured pregnant women. METHODS: This population-based, retrospective cohort study evaluated the association between trauma designation levels and injured pregnancy birth outcomes. We linked Washington State Birth and Fetal Death Certificate data and the Washington State Comprehensive Hospital Abstract Recording System...
July 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28969484/combined-measurement-of-fetal-lung-volume-and-pulmonary-artery-resistance-index-is-more-accurate-for-prediction-of-neonatal-respiratory-distress-syndrome-in-preterm-fetuses-a-pilot-study
#14
Mohamed Laban, Ghada Mansour, Ahmed El-Kotb, Alaa Hassanin, Zina Laban, Abdelrahman Saleh
OBJECTIVE: To estimate optimal cut-off values for mean fetal lung volume (FLV) and pulmonary artery resistance index (PA-RI) as noninvasive measures to predict neonatal respiratory distress syndrome (RDS) in preterm fetuses. METHODS: A prospective study conducted at Ain Shams University Maternity Hospital, Egypt from May 2015 to July 2017: eighty eligible women diagnosed with preterm labor were recruited at 32-36 weeks' gestation. Before delivery, three-dimensional ultrasound was used to estimate FLV using virtual organ computer-aided analysis (VOCAL), while PA-RI was measured by Doppler ultrasonography...
October 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28965575/severe-selenium-deficits-in-pregnant-women-irrespective-of-autoimmune-thyroid-disease-in-an-area-with-marginal-selenium-intake
#15
Urszula Ambroziak, Sandra Hybsier, Urszula Shahnazaryan, Małgorzata Krasnodębska-Kiljańska, Eddy Rijntjes, Zbigniew Bartoszewicz, Tomasz Bednarczuk, Lutz Schomburg
OBJECTIVES: Selenium (Se) deficiency is related to an increased risk of preterm labor, miscarriage, preeclampsia, gestational diabetes, and other obstetric complications. As the Se status declines during pregnancy, we hypothesized that the decline may be exacerbated in women with autoimmune thyroid disease (AITD). MATERIAL AND METHODS: Pregnant women (n=74; 30 [23-38] years) were consecutively recruited from the district of Warsaw, Poland, and divided into healthy subjects (HS, n=45), and women with a diagnosis of AITD (AITD, n=29)...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28965442/the-impact-of-curve-severity-on-obstetric-complications-and-regional-anesthesia-utilization-in-pregnant-patients-with-adolescent-idiopathic-scoliosis-a-preliminary-analysis
#16
Emily W Chan, Stephen R Gannon, Chevis N Shannon, Jeffrey E Martus, Gregory A Mencio, Christopher M Bonfield
OBJECTIVE Adolescent idiopathic scoliosis (AIS), the most common type of scoliosis, often presents immediately prior to a woman's childbearing years; however, research investigating the impact of AIS on women's health, particularly pregnancy delivery outcomes, is sparse, with existing literature reporting mixed findings. Similarly limited are studies examining the change in scoliotic curve during or after pregnancy. Therefore, this study aims to determine 1) the impact of scoliotic curvature on obstetric complications (preterm births, induction of labor, and urgent/emergency caesarean section delivery), 2) regional anesthetic decision making and success during delivery for these patients, and 3) the effect of pregnancy on curve progression...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28964685/shunt-based-interventions-why-how-and-when-to-place-a-shunt
#17
REVIEW
Mark P Johnson, R Douglas Wilson
The broad categories of surgical fetal therapy can be separated into either open surgical techniques or minimally invasive endoscopic/ultrasound-guided techniques that require only puncture of the uterus with single or multiple small ports. Benefits of fetoscopic or ultrasound-guided fetal intervention include decreased uterine irritability, decreased incidence of preterm labor, and avoidance of risks associated with hysterotomy and commitment to cesarean delivery for future pregnancies. Fetal abnormalities potentially amenable to ultrasound-guided drainage techniques include thoracic fluid-filled lesions and lower urinary tract obstruction...
September 27, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28958628/computer-modeling-tools-to-understand-the-causes-of-preterm-birth
#18
REVIEW
Andrea R Westervelt, Kristin M Myers
The mechanical integrity of the soft tissue structures supporting the fetus may play a role in maintaining a healthy pregnancy and triggering the onset of labor. Currently, the level of mechanical loading on the uterus, cervix, and fetal membranes during pregnancy is unknown, and it is hypothesized that the over-stretch of these tissues contributes to the premature onset of contractility, tissue remodeling, and membrane rupture, leading to preterm birth. The purpose of this review article is to introduce and discuss engineering analysis tools to evaluate and predict the mechanical loads on the uterus, cervix, and fetal membranes...
September 25, 2017: Seminars in Perinatology
https://www.readbyqxmd.com/read/28954603/matrix-metalloprotease-1-and-elastase-are-novel-uterotonic-agents-acting-through-protease-activated-receptor-1
#19
Scott W Walsh, William H Nugent, Anna V Solotskaya, Charles D Anderson, John R Grider, Jerome F Strauss
Matrix metalloproteinase-1 (MMP-1) and neutrophil elastase are proteolytic enzymes involved in tissue remodeling, but a role for them as uterotonic agents has not been considered. However, both these proteases activate protease-activated receptor 1 (PAR-1) that mediates thrombin-induced contractions. Matrix metalloproteinase-1 and elastase are products of neutrophils that infiltrate intrauterine tissues at the time of labor, so we tested the hypothesis that these proteases might be novel uterotonic agents acting via PAR-1...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28950816/maternal-immunomodulation-therapy-for-prevention-of-preterm-birth-and-prematurity-related-morbidity-the-new-era-of-immuno-perinatology
#20
Shriddha Nayak, Jared Welling, Irina Burd
Preterm birth and associated prematurity-related morbidity can significantly affect neonatal health and outcomes. While the mechanisms of preterm labor are yet to be fully understood, there is a need for prenatal therapeutic interventions to treat these conditions. As it is recognized from literature, the immune mechanisms responsible for preterm labor may be different from those responsible for prematurity-related conditions in the neonate. Differentiating the mechanisms for these two processes is yet to be addressed, and steps need to be taken to move forward the new field of immune-perinatology...
September 25, 2017: Current Pharmaceutical Design
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