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https://www.readbyqxmd.com/read/29563340/il-1-signaling-mediates-intrauterine-inflammation-and-chorio-decidua-neutrophil-recruitment-and-activation
#1
Pietro Presicce, Chan-Wook Park, Paranthaman Senthamaraikannan, Sandip Bhattacharyya, Courtney Jackson, Fansheng Kong, Cesar M Rueda, Emily DeFranco, Lisa A Miller, David A Hildeman, Nathan Salomonis, Claire A Chougnet, Alan H Jobe, Suhas G Kallapur
Neutrophil infiltration of the chorioamnion-decidua tissue at the maternal-fetal interface (chorioamnionitis) is a leading cause of prematurity, fetal inflammation, and perinatal mortality. We induced chorioamnionitis in preterm rhesus macaques by intraamniotic injection of LPS. Here, we show that, during chorioamnionitis, the amnion upregulated phospho-IRAK1-expressed neutrophil chemoattractants CXCL8 and CSF3 in an IL-1-dependent manner. IL-1R blockade decreased chorio-decidua neutrophil accumulation, neutrophil activation, and IL-6 and prostaglandin E2 concentrations in the amniotic fluid...
March 22, 2018: JCI Insight
https://www.readbyqxmd.com/read/29475580/evidence-of-cardiac-involvement-in-the-fetal-inflammatory-response-syndrome-disruption-of-gene-networks-programming-cardiac-development-in-nonhuman-primates
#2
Timothy Mitchell, James W MacDonald, Sengkeo Srinouanpranchanh, Theodor K Bammler, Sean Merillat, Erica Boldenow, Michelle Coleman, Kathy Agnew, Audrey Baldessari, Jennifer E Stencel-Baerenwald, Jennifer Tisoncik-Go, Richard R Green, Michael J Gale, Lakshmi Rajagopal, Kristina M Adams Waldorf
BACKGROUND: Most early preterm births are associated with intraamniotic infection and inflammation, which can lead to systemic inflammation in the fetus. The fetal inflammatory response syndrome describes elevations in the fetal interleukin-6 level, which is a marker for inflammation and fetal organ injury. An understanding of the effects of inflammation on fetal cardiac development may lead to insight into the fetal origins of adult cardiovascular disease. OBJECTIVE: The purpose of this study was to determine whether the fetal inflammatory response syndrome is associated with disruptions in gene networks that program fetal cardiac development...
February 21, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29384054/toll-like-receptor-4-a-new-target-for-preterm-labour-pharmacotherapies
#3
Sarah A Robertson, Hanan H Wahid, Peck Yin Chin, Mark R Hutchinson, Lachlan M Moldenhauer, Jeffrey A Keelan
Inflammatory activation, a major driver of preterm birth and subsequent neonatal morbidity, is an attractive pharmacological target for new preterm birth therapeutics. Inflammation elicited by intraamniotic infection is causally associated with preterm birth, particularly in infants delivered ≤34 weeks' gestation. However, sterile triggers of PTB, including placental ischaemic injury, uterine distention, cervical disease, or imbalance in the immune response, also act through inflammatory mediators released in response to tissue damage...
January 30, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29381706/ocular-and-uteroplacental-pathology-in-a-macaque-pregnancy-with-congenital-zika-virus-infection
#4
Emma L Mohr, Lindsey N Block, Christina M Newman, Laurel M Stewart, Michelle Koenig, Matthew Semler, Meghan E Breitbach, Leandro B C Teixeira, Xiankun Zeng, Andrea M Weiler, Gabrielle L Barry, Troy H Thoong, Gregory J Wiepz, Dawn M Dudley, Heather A Simmons, Andres Mejia, Terry K Morgan, M Shahriar Salamat, Sarah Kohn, Kathleen M Antony, Matthew T Aliota, Mariel S Mohns, Jennifer M Hayes, Nancy Schultz-Darken, Michele L Schotzko, Eric Peterson, Saverio Capuano, Jorge E Osorio, Shelby L O'Connor, Thomas C Friedrich, David H O'Connor, Thaddeus G Golos
Congenital Zika virus (ZIKV) infection impacts fetal development and pregnancy outcomes. We infected a pregnant rhesus macaque with a Puerto Rican ZIKV isolate in the first trimester. The pregnancy was complicated by preterm premature rupture of membranes (PPROM), intraamniotic bacterial infection and fetal demise 49 days post infection (gestational day 95). Significant pathology at the maternal-fetal interface included acute chorioamnionitis, placental infarcts, and leukocytoclastic vasculitis of the myometrial radial arteries...
2018: PloS One
https://www.readbyqxmd.com/read/29340812/partial-amniotic-carbon-dioxide-insufflation-paci-during-minimally-invasive-fetoscopic-interventions-on-fetuses-with-spina-bifida-aperta
#5
Miriam Ziemann, Rolf Fimmers, Anastasiia Khaleeva, Rainer Schürg, Markus A Weigand, Thomas Kohl
BACKGROUND: Percutaneous partial amniotic carbon dioxide insufflation (PACI) is one of the most important means for improving visualization during minimally invasive fetoscopic surgery of fetal spina bifida. The purpose of the present study was to analyze maternal and fetal safety aspects of PACI in a recent patient cohort and to present management improvements. METHODS: PACI under general materno-fetal anesthesia was performed during 65 interventions for fetoscopic patch coverage of fetal spina bifida aperta between 21 + 0 and 29 + 1 weeks of gestation...
January 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29215519/foley-plus-oxytocin-compared-with-oxytocin-for-induction-after-membrane-rupture-a-randomized-controlled-trial
#6
RANDOMIZED CONTROLLED TRIAL
A Dhanya Mackeen, Danielle E Durie, Monique Lin, Christopher K Huls, Emma Qureshey, Michael J Paglia, Haiyan Sun, Anthony Sciscione
OBJECTIVE: To evaluate the use of a transcervical Foley catheter plus oxytocin infusion compared with oxytocin infusion alone for labor induction and cervical ripening in women 34 weeks of gestation or greater with prelabor rupture of membranes. METHODS: This is a randomized, multicenter trial of women with a live, singleton gestation at 34 weeks of gestation or greater with prelabor rupture of membranes, an unfavorable cervical examination (less than 2 cm or 80% effaced), and no contraindication to labor...
January 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29185951/intraamniotic-infection-and-the-term-neonate
#7
Deborah A Raines, Ashley Wagner, Alexander Salinas
Intraamniotic infection (IAI) may occur when the amniotic membranes are ruptured >18 hours prior to birth. The term neonate is at risk for early onset sepsis. This article describes the pathophysiology of IAI and the role of the mother-baby nurse during the anticipated birth and the ongoing assessment of the neonate.
November 1, 2017: Neonatal Network: NN
https://www.readbyqxmd.com/read/29132800/fetal-bone-marrow-homing-of-donor-mesenchymal-stem-cells-after-transamniotic-stem-cell-therapy-trascet
#8
Hester F Shieh, Azra Ahmed, Sarah A Tracy, David Zurakowski, Dario O Fauza
PURPOSE: Donor cell engraftment patterns following transamniotic stem cell therapy (TRASCET) with amniotic fluid mesenchymal stem cells (afMSCs) are incompatible with solely direct amniotic seeding. We sought to determine whether fetal bone marrow is a component of such engraftment and to examine the chronology of afMSC placental trafficking. METHODS: Two groups of Sprague-Dawley rat fetuses received volume-matched intraamniotic injections on gestational day 17 (E17; term E22): either afMSCs labeled with a luciferase reporter gene or luciferase protein alone...
October 12, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28957335/fetal-skin-as-a-pro-inflammatory-organ-evidence-from-a-primate-model-of-chorioamnionitis
#9
Suppawat Boonkasidecha, Paranthaman Senthamarai Kannan, Suhas G Kallapur, Alan H Jobe, Matthew W Kemp
BACKGROUND: Intrauterine infection is a primary cause of preterm birth and fetal injury. The pro-inflammatory role of the fetal skin in the setting of intrauterine infection remains poorly characterized. Whether or not inflammation of the fetal skin occurs in primates remains unstudied. Accordingly, we hypothesized that: i) the fetal primate skin would mount a pro-inflammatory response to preterm birth associated pro-inflammatory agents (lipopolysaccharides from Escherichia coli, live Ureaplasma parvum, interleukin-1β) and; ii) that inhibiting interleukin-1 signaling would decrease the skin inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28742677/committee-opinion-no-712-intrapartum-management-of-intraamniotic-infection
#10
(no author information available yet)
Intraamniotic infection, also known as chorioamnionitis, is an infection with resultant inflammation of any combination of the amniotic fluid, placenta, fetus, fetal membranes, or decidua. Intraamniotic infection is a common condition noted among preterm and term parturients. However, most cases of intraamniotic infection detected and managed by obstetrician-gynecologists or other obstetric care providers will be noted among term patients in labor. Intraamniotic infection can be associated with acute neonatal morbidity, including neonatal pneumonia, meningitis, sepsis, and death...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742671/committee-opinion-no-712-summary-intrapartum-management-of-intraamniotic-infection
#11
(no author information available yet)
Intraamniotic infection, also known as chorioamnionitis, is an infection with resultant inflammation of any combination of the amniotic fluid, placenta, fetus, fetal membranes, or decidua. Intraamniotic infection is a common condition noted among preterm and term parturients. However, most cases of intraamniotic infection detected and managed by obstetrician-gynecologists or other obstetric care providers will be noted among term patients in labor. Intraamniotic infection can be associated with acute neonatal morbidity, including neonatal pneumonia, meningitis, sepsis, and death...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28708576/adiponectin-concentration-in-mid-trimester-amniotic-fluid-varies-with-the-%C3%AE-amylase-level-and-maternal-and-neonatal-outcomes
#12
Joseph Chervenak, Mio Sawai, Lamis El Kabab, Rahul Lohana, Daniel Skupski, Steven S Witkin
OBJECTIVE: Factors influencing intraamniotic adiponectin levels and their functional significance remain incompletely elucidated. We prospectively measured adiponectin in amniotic fluid and identified its associations with maternal parameters, mediators in amniotic fluid and pregnancy outcomes. STUDY DESIGN: Mid-trimester amniotic fluid from 571 women was tested for adiponectin, interleukin (IL)-6, IL-8 and α-amylase by enzyme-linked immunosorbant assay (ELISA), after which clinical data were obtained...
July 14, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28620499/intrauterine-death-following-intraamniotic-triiodothyronine-and-thyroxine-therapy-for-fetal-goitrous-hypothyroidism-associated-with-polyhydramnios-and-caused-by-a-thyroglobulin-mutation
#13
Pradeep Vasudevan, Corrina Powell, Adeline K Nicholas, Ian Scudamore, James Greening, Soo-Mi Park, Nadia Schoenmakers
In the absence of maternal thyroid disease or iodine deficiency, fetal goitre is rare and usually attributable to dyshormonogenesis, for which genetic ascertainment is not always undertaken in the UK. Mechanical complications include tracheal and oesophageal compression with resultant polyhydramnios, malpresentation at delivery and neonatal respiratory distress. We report an Indian kindred in which the proband (first-born son) had congenital hypothyroidism (CH) without obvious neonatal goitre. His mother's second pregnancy was complicated by fetal hypothyroid goitre and polyhydramnios, prompting amniotic fluid drainage and intraamniotic therapy (with liothyronine, T3 and levothyroxine, T4)...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28502201/prediction-of-chorioamnionitis-in-cases-of-intraamniotic-infection-by-ureaplasma-urealyticum-in-women-with-very-preterm-premature-rupture-of-membranes-or-preterm-labour
#14
Rocio Revello, María José Alcaide, Daniel Abehsera, María Martin-Camean, Mafalda Sousa E Faro Gomes, Bárbara Alonso-Luque, Jose L Bartha
OBJECTIVES: First, to determinate the frequency of chorioamnionitis and funisitis in cases of intramniotic detection of Ureaplasma urealyticum. Second, to assess the predictive capability of some biological markers in the amniotic fluid of these women to predict histological inflammation. SUBJECTS AND METHODS: We prospectively studied 20 cases of women with premature rupture of membranes or preterm labour (PROM) or preterm labour and intraamniotic detection of Ureaplasma urealyticum...
June 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28363468/donor-mesenchymal-stem-cells-home-to-maternal-wounds-after-transamniotic-stem-cell-therapy-trascet-in-a-rodent-model
#15
Christopher D Graham, Hester F Shieh, Joseph A Brazzo, David Zurakowski, Dario O Fauza
PURPOSE: Transamniotic stem cell therapy (TRASCET) with amniotic fluid-derived MSCs (afMSCs) has emerged experimentally as a practical treatment strategy for congenital anomalies. In this study, we sought to determine whether afMSCs migrate to the mother following TRASCET. METHODS: Pregnant rat dams were divided into three groups. Two groups received volume-matched injections into all amniotic cavities of either a suspension of afMSCs labeled with a luciferase reporter gene or the luciferase protein alone...
June 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28029371/the-role-of-water-soluble-meconium-subfraction-and-lipid-soluble-meconium-subfraction-on-the-superior-mesenteric-artery-vasoconstriction-in-chick-embryos
#16
Serdar Şiyve, Oktay Ulusoy, Osman Z Karakuş, Nergis Murat, Mehmet E Uslu, Oğuz Ateş, Gülce Hakgüder, Mustafa Olguner, Feza M Akgür
OBJECTIVE: Intraamniotic meconium has been responsible for intestinal damage in gastroschisis and meconium-dependent intestinal ischemia has been proposed to induce additional intestinal damage in gastroschisis. This study is aimed to determine the effects of lipid and water-soluble meconium subfractions on the contractility of the superior mesenteric artery (SMA). MATERIALS AND METHODS: The study was conducted on 18-day fertilized chick embryos (Gallus Domesticus)...
March 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27836365/transamniotic-stem-cell-therapy-trascet-in-a-leporine-model-of-gastroschisis
#17
Christina Feng, Christopher D Graham, Hester F Shieh, Joseph A Brazzo, John Patrick Connors, Lucas Rohrer, Alexander Papadakis, David Zurakowski, Dario O Fauza
BACKGROUND/PURPOSE: Transamniotic stem cell therapy (TRASCET) with amniotic fluid mesenchymal stem cells (afMSCs) has been shown to mitigate bowel damage in a rodent model of gastroschisis. As a prerequisite to clinical translation, we sought to study TRASCET in a larger animal model. METHODS: New Zealand rabbit fetuses (n=64) with surgically created gastroschisis were divided into three groups. One group (untreated) had no further manipulations. Two groups received volume-matched intraamniotic injections of either saline or a suspension of afMSCs...
January 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27440743/aquaporins-in-ovine-amnion-responses-to-altered-amniotic-fluid-volumes-and-intramembranous-absorption-rates
#18
Cecilia Y Cheung, Debra F Anderson, Robert A Brace
Aquaporins (AQPs) are transmembrane channel proteins that facilitate rapid water movement across cell membranes. In amniotic membrane, the AQP-facilitated transfer of water across amnion cells has been proposed as a mechanism for amniotic fluid volume (AFV) regulation. To investigate whether AQPs modulate AFV by altering intramembranous absorption (IMA) rate, we tested the hypothesis that AQP gene expression in the amnion is positively correlated with IMA rate during experimental conditions when IMA rate and AFV are modified over a wide range...
July 2016: Physiological Reports
https://www.readbyqxmd.com/read/27265200/intraamniotic-inflammation-and-umbilical-cord-blood-interleukin-6-concentrations-in-pregnancies-complicated-by-preterm-prelabor-rupture-of-membranes
#19
Ivana Musilova, Ctirad Andrys, Marcela Drahosova, Ondrej Soucek, Martin Stepan, Tomas Bestvina, Richard Spacek, Bo Jacobsson, Teresa Cobo, Marian Kacerovsky
OBJECTIVE: To evaluate umbilical cord blood interleukin (IL)-6 concentrations and the occurrence of fetal inflammatory response syndrome (FIRS) with respect to microbial invasion of the amniotic cavity (MIAC) and/or intraamniotic inflammation (IAI) in pregnancies complicated by preterm prelabor rupture of membranes (PPROM). METHODS: One-hundred-eighty-eight women with singleton pregnancies complicated by PPROM between gestational ages of 24 + 0 and 36 + 6 weeks were included in the study...
April 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27013425/a-comparison-between-placental-and-amniotic-mesenchymal-stem-cells-for-transamniotic-stem-cell-therapy-trascet-in-experimental-spina-bifida
#20
COMPARATIVE STUDY
Christina Feng, Christopher D Graham, John Patrick Connors, Joseph Brazzo, David Zurakowski, Dario O Fauza
PURPOSE: We compared placental-derived and amniotic fluid-derived mesenchymal stem cells (pMSCs and afMSCs, respectively) in transamniotic stem cell therapy (TRASCET) for experimental spina bifida. METHODS: Pregnant dams (n=29) exposed to retinoic acid for the induction of fetal spina bifida were divided into four groups. Three groups received volume-matched intraamniotic injections of either saline (n=38 fetuses) or a suspension of 2×10(6) cells/mL of syngeneic, labeled afMSCs (n=73) or pMSCs (n=115) on gestational day 17 (term=21-22days)...
June 2016: Journal of Pediatric Surgery
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