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Necrotizing enterocolitis

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https://www.readbyqxmd.com/read/28333939/maintenance-nifedipine-therapy-for-preterm-symptomatic-placenta-previa-a-randomized-multicenter-double-blind-placebo-controlled-trial
#1
Eric Verspyck, Claire de Vienne, Charles Muszynski, Michael Bubenheim, Isabella Chanavaz-Lacheray, Michel Dreyfus, Philippe Deruelle, Jacques Benichou
OBJECTIVE: To assess the impact of maintenance nifedipine therapy on pregnancy duration in women with preterm placenta previa bleeding. METHODS: PPADAL was a randomized, double-blind, placebo-controlled trial conducted between 05/2008 and 05/2012 in five French hospitals. The trial included 109 women, aged ≥ 18 years, with at least one episode of placenta previa bleeding, intact membranes and no other pregnancy complication, at gestational age 24 to 34 weeks and after 48 hours of complete acute tocolysis...
2017: PloS One
https://www.readbyqxmd.com/read/28333160/the-contributions-of-red-blood-cell-transfusion-and-severe-anemia-in-necrotizing-enterocolitis-causes-or-confounders
#2
D D Flannery, E E Foglia
No abstract text is available yet for this article.
March 23, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28333154/maternal-neonatal-vitamin-d-deficiency-a-new-risk-factor-for-necrotizing-enterocolitis-in-preterm-infants
#3
M Cetinkaya, T Erener-Ercan, T Kalayci-Oral, A Babayiğit, B Cebeci, S Y Semerci, G Buyukkale
OBJECTIVE: The objective of the study was to investigate the possible association between maternal/neonatal 25-hydroxy vitamin D (25-OHD) levels and development of necrotizing enterocolitis (NEC). STUDY DESIGN: One hundred and forty-five preterm infants ⩽36 weeks of gestation were enrolled. 25-OHD levels were determined in maternal/neonatal blood samples that were obtained at the time of admission to the neonatal intensive care unit. RESULTS: Of the 145 enrolled patients, 26 (18%) developed NEC...
March 23, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28329897/maternal-labor-delivery-and-perinatal-outcomes-associated-with-placental-abruption-a-systematic-review
#4
Katheryne L Downes, Katherine L Grantz, Edmond D Shenassa
Objective Risk factors for placental abruption have changed, but there has not been an updated systematic review investigating outcomes. Methods We searched PubMed, EMBASE, Web of Science, SCOPUS, and CINAHL for publications from January 1, 2005 through December 31, 2016. We reviewed English-language publications reporting estimated incidence and/or risk factors for maternal, labor, delivery, and perinatal outcomes associated with abruption. We excluded case studies, conference abstracts, and studies that lacked a referent/comparison group or did not clearly characterize placental abruption...
March 22, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28323128/fecal-microbiota-transplantation-fmt-could-reverse-the-severity-of-experimental-necrotizing-enterocolitis-nec-via-oxidative-stress-modulation
#5
Xiaomei Li, Xiaowen Li, Qingjuan Shang, Zongwei Gao, Fabao Hao, Hongjie Guo, Chunbao Guo
Fecal microbiota transplantation (FMT) has been used successfully to treat a variety of gastroenterological diseases. The alterations of microbiota in mouse models of necrotizing enterocolitis (NEC) as well as in patients suggested the possibility of treating NEC with FMT. Here we show that FMT caused an improvement in the histopathology and symptoms of NEC in WT mice, but not Grx1-/- mice. FMT eliminated O2(•)- production and promoted NO production in experimental NEC mice though the modulation of S-glutathionylation of eNOS (eNOS-SSG)...
March 16, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28318214/preterm-labor-prevention-and-management
#6
Kristen Rundell, Bethany Panchal
In the United States, preterm delivery is the leading cause of neonatal morbidity and is the most common reason for hospitalization during pregnancy. The rate of preterm delivery (before 37 weeks' gestation) has been declining since 2007. Clinical diagnosis of preterm labor is made if there are regular contractions and concomitant cervical change. Less than 10% of women with a clinical diagnosis of preterm labor will deliver within seven days of initial presentation. Women with a history of spontaneous preterm delivery are 1...
March 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28316967/the-role-of-mucosal-immunity-in-the-pathogenesis-of-necrotizing-enterocolitis
#7
REVIEW
Zerina Hodzic, Alexa M Bolock, Misty Good
Necrotizing enterocolitis (NEC) is the most devastating gastrointestinal disease of prematurity. Although the precise cause is not well understood, the main risk factors thought to contribute to NEC include prematurity, formula feeding, and bacterial colonization. Recent evidence suggests that NEC develops as a consequence of intestinal hyper-responsiveness to microbial ligands upon bacterial colonization in the preterm infant, initiating a cascade of aberrant signaling events, and a robust pro-inflammatory mucosal immune response...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28315470/the-nitric-oxide-synthase-2-pathway-is-targeted-by-both-pro-and-anti-inflammatory-treatments-in-the-immature-human-intestine
#8
Emanuela Ferretti, Eric Tremblay, Marie-Pier Thibault, David Grynspan, Karolina M Burghardt, Marcos Bettolli, Corentin Babakissa, Emile Levy, Jean-François Beaulieu
BACKGROUND AND AIM: NO synthase 2 (NOS2) was recently identified as one the most overexpressed genes in intestinal samples of premature infants with necrotizing enterocolitis (NEC). NOS2 is widely implicated in the processes of epithelial cell injury/apoptosis and host immune defense but its specific role in inflammation of the immature human intestinal mucosa remains unclear. Interestingly, factors that prevent NEC such as epidermal growth factor (EGF) attenuate the inflammatory response in the mid-gestation human small intestine using serum-free organ culture while drugs that are associated with NEC occurrence such as the non-steroidal anti-inflammatory drug, indomethacin (INDO), exert multiple detrimental effects on the immature human intestine...
March 14, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28304405/the-erbb3-receptor-tyrosine-kinase-negatively-regulates-paneth-cells-by-pi3k-dependent-suppression-of-atoh1
#9
Dana Almohazey, Yuan-Hung Lo, Claire V Vossler, Alan J Simmons, Jonathan J Hsieh, Edie B Bucar, Michael A Schumacher, Kathryn E Hamilton, Ken S Lau, Noah F Shroyer, Mark R Frey
Paneth cells (PCs), a secretory population located at the base of the intestinal crypt, support the intestinal stem cells (ISC) with growth factors and participate in innate immunity by releasing antimicrobial peptides, including lysozyme and defensins. PC dysfunction is associated with disorders such as Crohn's disease and necrotizing enterocolitis, but the specific pathways regulating PC development and function are not fully understood. Here we tested the role of the neuregulin receptor ErbB3 in control of PC differentiation and the ISC niche...
March 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28304325/early-feeding-tolerance-in-small-for-gestational-age-infants-with-normal-versus-abnormal-antenatal-doppler-characteristics
#10
M F Ahamed, Pe'er Dar, M Vega, Mimi Kim, Q Gao, T Havranek
OBJECTIVES: To determine differences in feeding tolerance amongst preterm small for gestational age (SGA) infants with normal versus abnormal umbilical artery Doppler flow defined as absent or reversed end diastolic flow (AREDF). METHODS: This was a retrospective cohort study of infants <35 weeks gestational age (GA) and birth weight (BW) <10th percentile. Day of initiation of feeds, days to full feeds and CRIB II scores were the primary outcomes. Clinical characteristics were compared between the groups of SGA infants with normal and AREDF...
March 16, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28304317/early-onset-necrotizing-enterocolitis-nec-in-premature-twins
#11
B Afzal, V Elberson, C McLaughlin, V Hs Kumar
Twin infants born at 34 week gestation had frank blood in stools on day three of life on mixed feeds of formula and maternal breast milk. Sepsis work up was negative in these relatively well appearing infants with pneumatosis in the colon on abdominal x-ray. Blood in stools recurred on reintroduction of breast milk in Twin A. Both infants recovered from episodes of bloody stools on amino-acid based formula and were thriving at discharge. Early necrotizing enterocolitis in both twins is rare and has not been reported...
March 16, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28299311/immunostimulated-arginase-ii-expression-in-intestinal-epithelial-cells-reduces-nitric-oxide-production-and-apoptosis
#12
Maria M Talavera, Sushma Nuthakki, Hongmei Cui, Yi Jin, Yusen Liu, Leif D Nelin
Increased production of nitric oxide (NO) and subsequent local cytotoxicity to mucosal epithelial cells has been proposed as a putative mechanism involved in the development of necrotizing enterocolitis (NEC). Intestinal epithelial cells (IECs) metabolize L-arginine to either nitric oxide (NO) by NO synthase (NOS) or to L-ornithine and urea by arginase. L-ornithine is the first step in polyamine synthesis important for cell proliferation, while NO production can lead to apoptosis. We hypothesized that in IECs immunostimulation increases both NOS and arginase expression, and that arginase activity mitigates NO production and apoptosis...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28298945/doppler-ultrasound-assessment-of-the-splanchnic-circulation-in-preterms-with-neonatal-sepsis-at-risk-for-necrotizing-enterocolitis
#13
Rania H Hashem, Yasmeen A Mansi, Nehal S Almasah, Shereen Abdelghaffar
OBJECTIVE: To evaluate the role of Doppler ultrasonography in the assessment of splanchnic circulation's hemodynamic changes in septic preterms at risk of necrotizing enterocolitis. METHODS: A total of 51 septic preterms were divided into two groups: 25 preterms with clinical signs of necrotizing enterocolitis (NEC) and 26 preterms with no clinical signs of NEC. Both groups were assessed with Doppler ultrasonography of the celiac and superior mesenteric arteries, and each septic preterm's peak systolic velocity (PSV), end-diastolic velocity (EDV), resistivity index (RI), and pulsatility index (PI) was calculated and recorded...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28298861/retinopathy-of-prematurity-revisiting-incidence-and-risk-factors-from-oman-compared-to-other-countries
#14
Zenaida Soriano Reyes, Sharef Waadallah Al-Mulaabed, Flordeliz Bataclan, Cheryl Montemayor, Anuradha Ganesh, Sanaa Al-Zuhaibi, Huda Al-Waili, Fatma Al-Wahibi
PURPOSE: The purpose of this study is to determine the incidence of retinopathy of prematurity (ROP) and the maternal/neonatal risk factors at a tertiary care hospital in Oman, compared to other countries. PATIENTS AND METHODS: A retrospective analysis of premature neonates born with gestational age (GA) 24-32 weeks at Sultan Qaboos University Hospital, Oman, from January 2007 to December 2010. Maternal and neonatal in-hospital course was retrieved. The incidence of ROP was reported...
January 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28295432/excessive-bright-echoes-sign-for-hypertrophic-pyloric-stenosis-suggest-the-diagnosis-gastric-pneumatosis-and-portal-venous-gas-in-infants-suggest-hps
#15
Harris L Cohen, P Blake Chism, Ina Radtke
We describe a new finding, the "excessive bright echoes" sign, for the diagnosis of hypertrophic pyloric stenosis (HPS). Portal venous gas and gastric wall pneumatosis were noted in 4 vomiting infants proven to have HPS. Portal venous gas can be concerning for ischemic bowel. Gastric wall pneumatosis can be seen in association with necrotizing enterocolitis and has been associated with increased gastric pressure from severe, usually proximal, bowel obstruction. Our HPS cases had prominent bright punctate echoes on sonography of the liver, portal vein lumen, and gastric wall...
March 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28295397/red-blood-cell-transfusions-can-induce-proinflammatory-cytokines-in-preterm-infants
#16
Carlo Dani, Chiara Poggi, Elena Gozzini, Valentina Leonardi, Alice Sereni, Rosanna Abbate, Anna Maria Gori
BACKGROUND: The risk of developing red blood cell (RBC) transfusion-associated necrotizing enterocolitis (TANEC) in preterm infants has recently been emphasized. Our aim was to assess changes in cytokine serum levels after RBC transfusions in a cohort of very preterm infants to evaluate their possible proinflammatory effect. STUDY DESIGN AND METHODS: We carried out a prospective observational study. One transfusion event was studied in infants less than 32 weeks' gestation and more than 7 days old (n = 20) admitted to a tertiary neonatal intensive care unit...
March 11, 2017: Transfusion
https://www.readbyqxmd.com/read/28289509/perinatal-risk-factors-in-newborns-with-gastrointestinal-perforation
#17
Sandra Prgomet, Boris Lukšić, Zenon Pogorelić, Ivo Jurić, Vesna Čapkun, Adela Arapović, Nataša Boban
AIM: To investigate correlation of perinatal risk factors in newborns with gastrointestinal perforation (GIP). METHODS: Single-center retrospective cohort study was conducted between January 1990 and December 2012. Medical records on all newborns with GIP were reviewed (n = 35). Surgical records and histopathologic examination of all perforated intestine samples were also reviewed. RESULTS: The most common cause of GIP was necrotizing enterocolitis (51...
February 27, 2017: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28278201/the-symbiotic-bacterial-surface-factor-polysaccharide-a-on-bacteroides-fragilis-inhibits-il-1%C3%AE-induced-inflammation-in-human-fetal-enterocytes-via-toll-receptors-2-and-4
#18
Fei Jiang, Di Meng, Meiqian Weng, Weishu Zhu, Wenxue Wu, Dennis Kasper, W Allan Walker
Colonizing bacteria interacting with the immature, unlike the mature, human intestine favors inflammation over immune homeostasis. As a result, ten percent of premature infants under 1500 grams weight develop an inflammatory necrosis of the intestine after birth, e.g., necrotizing enterocolitis (NEC). NEC is a major health problem in this population causing extensive morbidity and mortality and an enormous expenditure of health care dollars. NEC can be prevented by giving preterm infants their mother's expressed breast milk or ingesting selective probiotic organisms...
2017: PloS One
https://www.readbyqxmd.com/read/28276942/probiotic-use-in-an-infectious-disease-setting
#19
Gregor Reid
The lethality of infectious diseases and deep concern over growing antimicrobial resistance make it essential that alternative or adjunct therapies be developed. Areas covered: Using papers published in PubMed, a case is presented to consider beneficial microbes as a means to improve management of infectious diseases. Clinical evidence is mounting that certain probiotic microbes can contribute to this armamentarium. These could have an immediate effect against necrotizing enterocolitis, pre- and post-surgical procedures, antibiotic-associated infections, urogenital infections in women and for reducing the severity and duration of respiratory infections...
March 1, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28274521/cavopulmonary-anastomosis-during-same-hospitalization-as-stage-1-norwood-hybrid-palliative-surgery
#20
Sachin D Tadphale, Xinyu Tang, Nahed O ElHassan, Brandon Beam, Parthak Prodhan
BACKGROUND: Limited literature has examined characteristics of infants with hypoplastic left heart syndrome (HLHS) who remain hospitalized during the interstage period. We described their epidemiologic characteristics, in-hospital outcomes, and identified risk factors that predict the need for superior cavopulmonary anastomosis (SCPA) during the same hospitalization. METHODS: This retrospective multicenter database analysis included infants with HLHS who underwent stage 1 palliation from 2004 through 2013...
March 5, 2017: Annals of Thoracic Surgery
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