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intraamniotic infection

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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/28957335/fetal-skin-as-a-pro-inflammatory-organ-evidence-from-a-primate-model-of-chorioamnionitis
#7
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
#8
(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
#9
(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/28502201/prediction-of-chorioamnionitis-in-cases-of-intraamniotic-infection-by-ureaplasma-urealyticum-in-women-with-very-preterm-premature-rupture-of-membranes-or-preterm-labour
#10
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/26793746/mass-spectrometric-detection-of-biomarkers-for-early-assessment-of-intraamniotic-fluid-infection
#11
Consuelo Cháfer-Pericás, Vedran Stefanovic, Ángel Sánchez-Illana, Javier Escobar, María Cernada, Elena Cubells, Antonio Núñez-Ramiro, Sture Andersson, Máximo Vento, Julia Kuligowski
This data article contains information on glutathione sulfonamide (GSA) structural confirmation and purity after synthesis, as well as mass spectrometry acquisition parameters for the determination of GSA and other biomarkers for the early assessment of intraamniotic fluid infection in amniotic fluid samples (Cháfer-Pericás et al., 2015) [1]. GSA standards were synthesized and structural confirmation was carried out employing time-of-flight mass spectrometry (TOF-MS); purity was assessed by high performance liquid chromatography (HPLC) with UV detection...
December 2015: Data in Brief
https://www.readbyqxmd.com/read/26456057/novel-biomarkers-in-amniotic-fluid-for-early-assessment-of-intraamniotic-infection
#12
Consuelo Cháfer-Pericás, Vedran Stefanovic, Ángel Sánchez-Illana, Javier Escobar, María Cernada, Elena Cubells, Antonio Núñez-Ramiro, Sture Andersson, Máximo Vento, Julia Kuligowski
Intra-amniotic infection/inflammation (IAI) is associated with preterm birth, short and long-term adverse clinical outcomes and oxidative stress. The diagnosis of IAI is based on histological and clinical findings; however, often these results are unspecific. Therefore, efforts have been directed towards validating reliable methods for patients lacking overt clinical symptoms. In this study, amniotic fluid (AF) samples were prospectively collected from 23 women grouped into two categories (with or without IAI) following clinical, microbiological and histological criteria...
December 2015: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/26428501/acute-chorioamnionitis-and-funisitis-definition-pathologic-features-and-clinical-significance
#13
REVIEW
Chong Jai Kim, Roberto Romero, Piya Chaemsaithong, Noppadol Chaiyasit, Bo Hyun Yoon, Yeon Mee Kim
Acute inflammatory lesions of the placenta consist of diffuse infiltration of neutrophils at different sites in the organ. These lesions include acute chorioamnionitis, funisitis, and chorionic vasculitis and represent a host response (maternal or fetal) to a chemotactic gradient in the amniotic cavity. While acute chorioamnionitis is evidence of a maternal host response, funisitis and chorionic vasculitis represent fetal inflammatory responses. Intraamniotic infection generally has been considered to be the cause of acute chorioamnionitis and funisitis; however, recent evidence indicates that "sterile" intraamniotic inflammation, which occurs in the absence of demonstrable microorganisms induced by "danger signals," is frequently associated with these lesions...
October 2015: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/26408085/outside-in-acute-fetal-systemic-inflammation-in-very-preterm-chronically-catheterized-sheep-fetuses-is-not-driven-by-cells-in-the-fetal-blood
#14
Matthew W Kemp, Timothy J Molloy, Haruo Usuda, Eleanor Woodward, Yuichiro Miura, Matthew S Payne, Demelza J Ireland, Alan H Jobe, Suhas G Kallapur, Sarah J Stock, Owen B Spiller, John P Newnham, Masatoshi Saito
BACKGROUND: The preterm birth syndrome (delivery before 37 weeks gestation) is a major contributor to the global burden of perinatal morbidity and death. The cause of preterm birth is complex, multifactorial, and likely dependent, at least in part, on the gestational age of the fetus. Intrauterine infection is frequent in preterm deliveries that occur at <32 weeks gestation; understanding how the fetus responds to proinflammatory insult will be an important step towards early preterm birth prevention...
February 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/26294950/leptotrichia-buccalis-a-novel-cause-of-chorioamnionitis
#15
Marcela C Smid, Sarah K Dotters-Katz, Rongpong Plongla, Kim A Boggess
Intra-amniotic Leptotrichia buccalis has not been previously associated with adverse pregnancy outcome. We report a case of chorioamnionitis and pregnancy loss associated with this primarily oral commensal. We review Leptotrichia buccalis and other oral commensals that have been identified in cases of intraamniotic infection.
April 15, 2015: Infectious Disease Reports
https://www.readbyqxmd.com/read/25993616/cervical-microbiota-in-women-with-preterm-prelabor-rupture-of-membranes
#16
Marian Kacerovsky, Filip Vrbacky, Radka Kutova, Lenka Pliskova, Ctirad Andrys, Ivana Musilova, Ramkumar Menon, Ronald Lamont, Jana Nekvindova
OBJECTIVE: To analyze the cervical microbiota in women with preterm prelabor rupture of membranes (PPROM) by pyrosequencing and to document associations between cervical microbiota, cervical inflammatory response, microbial invasion of the amniotic cavity (MIAC), histological chorioamnionitis, and intraamniotic infection (IAI). STUDY DESIGN: Sixty-one women with singleton pregnancies complicated by PPROM were included in the study. Specimens of cervical and amniotic fluid were collected on admission...
2015: PloS One
https://www.readbyqxmd.com/read/25953932/prevention-and-treatment-strategy-in-pregnant-women-with-group-b-streptococcal-infection
#17
G Tevdorashvili, D Tevdorashvili, M Andghuladze, M Tevdorashvili
Group B streptococcus (GBS; Streptococcus agalactiae) are encapsulated gram-positive cocci belonging to Lancefield group B, that frequently colonizes the human genital and gastrointestinal tracts. It is an important cause of illness in three categories of population: infants, pregnant women, and adults with underlying medical conditions. In pregnant women and postpartum women, GBS is a frequent cause of asymptomatic bacteriuria, urinary tract infection, upper genital tract infection (i.e. intraamniotic infection or chorioamnionitis), postpartum endometritis (8%), pneumonia (2%), puerperal sepsis (2%), and bacteremia without a focal site (31%)...
April 2015: Georgian Medical News
https://www.readbyqxmd.com/read/25775872/the-evaluation-of-the-predictive-value-of-tnf-alpha-concentration-in-maternal-serum-in-the-prediction-of-neonatal-and-maternal-infection
#18
Tomasz Łukaszewski, Krzysztof Drews, Agnieszka Seremak-Mrozikiewicz, Piotr Sieroszewski, Magdalena Barlik, Hubert Wolski, Marzena Wleklak
INTRODUCTION: The consequences of uncomplicated PPROM are serious, and the presence of overt intraamniotic infection (IAI) is associated with a significant increase in both, the maternal and fetal morbidity and mortality rate. TNF-alpha is a cytokine involved in systemic inflammation and plays an important role in modulating the acute phase reaction. AIM: The aim of this study was to evaluate the predictive value of TNF-alpha levels in maternal serum within 6 hours after pprom and in the period of up to 12 hours after delivery in the prediction of neonatal and maternal infection...
January 2015: Ginekologia Polska
https://www.readbyqxmd.com/read/25760552/fluconazole-treatment-of-intrauterine-candida-albicans-infection-in-fetal-sheep
#19
Gunlawadee Maneenil, Matthew S Payne, Paranthaman Senthamarai Kannan, Suhas G Kallapur, Boris W Kramer, John P Newnham, Yuichiro Miura, Alan H Jobe, Matthew W Kemp
BACKGROUND: Intrauterine Candida albicans infection causes severe fetal inflammatory responses and fetal injury in an ovine model. We hypothesized that intra-amniotic antifungal therapy with fluconazole would decrease the adverse fetal effects of intra-amniotic C. albicans in sheep. METHODS: Sheep received an intra-amniotic injection of 10(7) colony-forming units C. albicans. After 2 d, animals were then randomized to: (i) intra-amniotic and fetal intraperitoneal saline with delivery after 24 h (3 d C...
June 2015: Pediatric Research
https://www.readbyqxmd.com/read/25648771/intra-amniotic-pharmacological-blockade-of-inflammatory-signalling-pathways-in-an-ovine-chorioamnionitis-model
#20
COMPARATIVE STUDY
D J Ireland, M W Kemp, Y Miura, M Saito, J P Newnham, J A Keelan
Intrauterine inflammation (IUI) associated with infection is the major cause of preterm birth (PTB) at <32 weeks' gestation and accounts for ∼40% of all spontaneous PTBs. Pharmacological strategies to prevent PTB and improve fetal outcomes will likely require both antimicrobial and anti-inflammatory therapies. Here we investigated the effects of two cytokine-suppressive anti-inflammatory drugs (CSAIDs), compounds that specifically target inflammatory signalling pathways, in an ovine model of lipopolysaccharide (LPS)-induced chorioamnionitis...
May 2015: Molecular Human Reproduction
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