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https://www.readbyqxmd.com/read/28346925/microbiota-and-necrotizing-enterocolitis
#1
Sanjay Patole
Necrotizing enterocolitis (NEC) is an acquired gastrointestinal inflammatory condition with significant mortality and morbidity in preterm very low birth weight infants. The interplay between toll-like receptors, bacterial endotoxins, developmentally regulated excessive proinflammatory responses of the immature innate immune system, hypoxia, ischemia, reperfusion, free radicals, and the presence of substrates and bacterial endotoxins is thought to play an important role in the pathogenesis of NEC. The association (cause?) of various microbes (bacteria, viruses, and fungi) with NEC has intrigued researchers for many years...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346843/analgesic-effect-of-maternal-human-milk-odor-on-premature-neonates
#2
Audrey Baudesson de Chanville, Véronique Brevaut-Malaty, Aurélie Garbi, Barthelemy Tosello, Karine Baumstarck, Catherine Gire
BACKGROUND: Two studies have demonstrated an analgesic effect of maternal milk odor in preterm neonates, without specifying the method of olfactory stimulation. Research aim: This study aimed to assess the analgesic effect of maternal milk odor in preterm neonates by using a standardized method of olfactory stimulation. METHODS: This trial was prospective, randomized, controlled, double blinded, and centrally administered. The inclusion criteria for breastfed infants included being born between 30 and 36 weeks + 6 days gestational age and being less than 10 days postnatal age...
March 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28344212/age-dependent-effects-of-prenatal-dexamethasone-exposure-on-immune-responses-in-male-rats
#3
Ming-Yi Chou, Li-Tung Huang, You-Lin Tain, Ho-Chang Kuo, Mao-Meng Tiao, Jiunn-Ming Sheen, Chih-Cheng Chen, Pi-Lien Hung, Kai-Sheng Hsieh, Hong-Ren Yu
Prenatal glucocorticoid therapy is indicated in preterm delivery to prevent respiratory distress. This study was designed to evaluate the age-dependent effects of prenatal dexamethasone (DEX) therapy on the immune system using a rat model. Pregnant Sprague-Dawley rats received an intraperitoneal injection of DEX (0.1 mg/kg/day) or saline (VEH) over gestational days 14-20. Male offspring were sacrificed at postnatal day 7 (D7; infant stage), D120 (young adult stage), and D180 (adult stage) for evaluation of leukocyte subsets and isolation of splenocytes...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28343772/report-of-the-who-technical-consultation-on-the-effect-of-maternal-influenza-and-influenza-vaccination-on-the-developing-fetus-montreal-canada-september-30-october-1-2015
#4
Deshayne B Fell, Zulfiqar A Bhutta, Jennifer A Hutcheon, Ruth A Karron, Marian Knight, Michael S Kramer, Arnold S Monto, Geeta K Swamy, Justin R Ortiz, David A Savitz
In 2012, the World Health Organization (WHO) released a position paper on influenza vaccination recommending that pregnant women have the highest priority for seasonal vaccination in countries where the initiation or expansion of influenza immunization programs is under consideration. Although the primary goal of the WHO recommendation is to prevent influenza illness in pregnant women, the potential benefits of maternal immunization in protecting young infants are also recognized. The extent to which maternal influenza vaccination may prevent adverse birth outcomes such as preterm birth or small-for-gestational-age birth, however, is unclear as available studies are in disagreement...
March 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28343557/infants-born-to-opioid-dependent-women-in-ontario-2002-2014
#5
Susan B Brogly, Suzanne Turner, Katherine Lajkosz, Greg Davies, Adam Newman, Ana Johnson, Kimberly Dow
BACKGROUND: There is a paucity of data characterizing mother-infant pairs with prenatal opioid dependence in Canada. We therefore conducted a study of relevant births in Ontario from 2002 to 2014. METHODS: We used data from the Institute for Clinical Evaluative Sciences, the linked databases of coded population-based Ontario health services records. Differences in characteristics of opioid-dependent mother-neonate pairs and infant hospital costs by year were assessed using linear regression, and we calculated rates of preterm birth, low birth weight, birth defects, mortality, and neonatal abstinence syndrome...
March 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28343335/a-new-infant-hybrid-respiratory-simulator-preliminary-evaluation-based-on-clinical-data
#6
Barbara Stankiewicz, Krzysztof J Pałko, Marek Darowski, Krzysztof Zieliński, Maciej Kozarski
A new hybrid (numerical-physical) simulator of the respiratory system, designed to simulate spontaneous and artificial/assisted ventilation of preterm and full-term infants underwent preliminary evaluation. A numerical, seven-compartmental model of the respiratory system mechanics allows the operator to simulate global and peripheral obstruction and restriction of the lungs. The physical part of the simulator is a piston-based construction of impedance transformer. LabVIEW real-time software coordinates the work of both parts of the simulator and its interaction with a ventilator...
March 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28343214/moderate-grade-germinal-matrix-haemorrhage-activates-cell-division-in-the-neonatal-mouse-subventricular-zone
#7
William J Dawes, Xinyu Zhang, Stephen P J Fancy, David Rowitch, Silvia Marino
Precise temporal and spatial control of the neural stem/progenitor cells within the subventricular zone (SVZ) germinal matrix of the brain is important for normal development in the third trimester and the early postnatal period. The high metabolic demands of proliferating germinal matrix precursors, coupled with the flimsy structure of the germinal matrix cerebral vasculature, are thought to account for the high rates of haemorrhage in extremely- and very-low-birth-weight preterm infants. Germinal matrix haemorrhage can commonly extend to intraventricular haemorrhage (IVH)...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343092/the-impact-of-cumulative-pain-stress-on-neurobehavioral-development-of-preterm-infants-in-the-nicu
#8
Xiaomei Cong, Jing Wu, Dorothy Vittner, Wanli Xu, Naveed Hussain, Shari Galvin, Megan Fitzsimons, Jacqueline M McGrath, Wendy A Henderson
BACKGROUND: Vulnerable preterm infants experience repeated and prolonged pain/stress stimulation during a critical period in their development while in the neonatal intensive care unit (NICU). The contribution of cumulative pain/stressors to altered neurodevelopment remains unclear. The study purpose was to investigate the impact of early life painful/stressful experiences on neurobehavioral outcomes of preterm infants in the NICU. METHODS: A prospective exploratory study was conducted with fifty preterm infants (28 0/7-32 6/7weeks gestational age) recruited at birth and followed for four weeks...
March 23, 2017: Early Human Development
https://www.readbyqxmd.com/read/28342385/follow-up-at-two-years-of-age-and-early-predictors-of-non-compliance-in-a-cohort-of-very-preterm-infants
#9
Claire Mas, Patrick Gérardin, Emmanuel Chirpaz, Magali Carbonnier, Corinne Mussard, Sylvain Samperiz, Duksha Ramful
AIM: To examine the rates of follow-up at two years of age and perinatal factors associated with non-compliance in an observational population-based cohort of very preterm children enrolled in a routine follow-up program. METHOD: Data review of infants born between 2008 and 2012 in the Observatoire de La Grande Prématurité, Reunion Island cohort. All singletons born alive before 33weeks of gestational age and resident on the island at two years of age were included...
March 22, 2017: Early Human Development
https://www.readbyqxmd.com/read/28341800/variability-in-very-preterm-stillbirth-and-in-hospital-mortality-across-europe
#10
Elizabeth S Draper, Bradley N Manktelow, Marina Cuttini, Rolf F Maier, Alan C Fenton, Patrick Van Reempts, Anna-Karin Bonamy, Jan Mazela, Klaus Bᴓrch, Corinne Koopman-Esseboom, Heili Varendi, Henrique Barros, Jennifer J Zeitlin
BACKGROUND AND OBJECTIVE: Stillbirth and in-hospital mortality rates associated with very preterm births (VPT) vary widely across Europe. International comparisons are complicated by a lack of standardized data collection and differences in definitions, registration, and reporting. This study aims to determine what proportion of the variation in stillbirth and in-hospital VPT mortality rates persists after adjusting for population demographics, case-mix, and timing of death. METHODS: Standardized data collection for a geographically defined prospective cohort of VPTs (22(+0)-31(+6) weeks gestation) across 16 regions in Europe...
March 24, 2017: Pediatrics
https://www.readbyqxmd.com/read/28341527/the-relationship-of-maternal-prepregnancy-body-mass-index-and-pregnancy-weight-gain-to-neurocognitive-function-at-age-10-years-among-children-born-extremely-preterm
#11
Elizabeth T Jensen, Jelske W van der Burg, Thomas M O'Shea, Robert M Joseph, Elizabeth N Allred, Tim Heeren, Alan Leviton, Karl C K Kuban
OBJECTIVE: To assess the association between maternal prepregnancy body mass index and adequacy of pregnancy weight gain in relation to neurocognitive function in school-aged children born extremely preterm. STUDY DESIGN: Study participants were 535 ten-year-old children enrolled previously in the prospective multicenter Extremely Low Gestational Age Newborns cohort study who were products of singleton pregnancies. Soon after delivery, mothers provided information about prepregnancy weight...
March 21, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28341525/two-year-follow-up-outcomes-of-premature-infants-enrolled-in-the-phase-i-trial-of-mesenchymal-stem-cells-transplantation-for-bronchopulmonary-dysplasia
#12
So Yoon Ahn, Yun Sil Chang, Ji Hye Kim, Se In Sung, Won Soon Park
OBJECTIVE: To determine the long-term safety and outcomes of mesenchymal stem cells (MSCs) for bronchopulmonary dysplasia in premature infants enrolled in a previous phase I clinical trial up to 2 years of corrected age (CA). STUDY DESIGN: We assessed serious adverse events, somatic growth, and respiratory and neurodevelopmental outcomes at visit 1 (4-6 months of CA), visit 2 (8-12 months of CA), and visit 3 (18-24 months of CA) in a prospective longitudinal follow-up study up to 2 years' CA of infants who received MSCs (MSC group)...
March 21, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28339607/gross-motor-trajectories-during-the-first-year-of-life-for-preterm-infants-with-very-low-birth-weight
#13
Yu-Han Su, Suh-Fang Jeng, Wu-Shiun Hsieh, Yu-Kang Tu, Yen-Tzu Wu, Li-Chiou Chen
Background.: Early identification of motor dysfunction in very-low-birth-weight (VLBW) preterm infants is important in order to provide early intervention. Objective.: This study was to examine the motor trajectories of VLBW preterm infants during their first year of life and to investigate the predictive ability and influencing factors of the trajectories. Design and Methods.: A total of 342 VLBW preterm infants were prospectively assessed for motor development by the Alberta Infant Motor Scales at 4, 6, 9 and 12 months and for developmental outcomes using the Bayley Scales of Infant and Toddler Development- second edition at 24 months...
February 4, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28338817/risk-factor-models-for-neurodevelopmental-outcomes-in-children-born-very-preterm-or-with-very-low-birth-weight-a-systematic-review-of-methodology-and-reporting
#14
Louise Linsell, Reem Malouf, Joan Morris, Jennifer J Kurinczuk, Neil Marlow
The prediction of long-term outcomes in surviving infants born very preterm (VPT) or with very low birth weight (VLBW) is necessary to guide clinical management, provide information to parents, and help target and evaluate interventions. There is a large body of literature describing risk factor models for neurodevelopmental outcomes in VPT/VLBW children, yet few, if any, have been developed for use in routine clinical practice or adopted for use in research studies or policy evaluation. We sought to systematically review the methods and reporting of studies that have developed a multivariable risk factor model for neurodevelopment in surviving VPT/VLBW children...
March 3, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28337875/the-pig-as-a-model-for-premature-infants-the-importance-of-immunoglobulin-supplementation-for-growth-and-development
#15
A Socha-Banasiak, S Pierzynowski, J Woliński, D Grujic, M Boryczka, P Grzesiak, P Szczurek, E Czkwianianc, B Westrom, K Goncharova
Preterm human neonates, contrary to preterm piglets, obtain immunoglobulins from their mothers via the placenta during intrauterine development. However, one should note that the majority of trans-placental transfer of immunoglobulins in humans takes place during the last trimester of pregnancy. It is also known that the feeding of limited amounts of colostrum or systemic infusion of small amounts of serum improves the survival of preterm and full-term piglets. Full-term piglets deprived of their mother’s immunoglobulins exhibit strong apathy and develop watery diarrhoea, often resulting in death...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28336813/the-innate-immune-response-in-fetal-lung-mesenchymal-cells-targets-vegfr2-expression-and-activity
#16
Rachel M Medal, Amanda M Im, Yasutoshi Yamamoto, Omar Lakhdari, Timothy S Blackwell, Hal M Hoffman, Debashis Sahoo, Lawrence S Prince
In preterm infants, soluble inflammatory mediators target lung mesenchymal cells, disrupting airway and alveolar morphogenesis. However, how mesenchymal cells respond directly to microbial stimuli remains poorly characterized. Our objective was to measure the genome-wide innate immune response in fetal lung mesenchymal cells exposed to the bacterial endotoxin lipopolysaccharide (LPS). Using Affymetrix MoGene 1.0st arrays, we showed that LPS induced expression of unique innate immune transcripts heavily weighted toward CC and CXC family chemokines...
March 23, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28335806/effectiveness-of-early-interventions-for-parental-sensitivity-following-preterm-birth-a-systematic-review-protocol
#17
Andréane Lavallée, Marilyn Aita, Anne Bourbonnais, Gwenaëlle De Clifford-Faugère
BACKGROUND: Parental sensitivity is the interaction process by which parents (a) recognize cues from their infant, (b) interpret these cues adequately, (c) identify an appropriate response and (d) apply this response in an appropriate time frame. In the neonatal intensive care unit, parents of preterm infants often encounter factors hampering the establishment of their parental sensitivity. Parents report the need to be in proximity to and to participate in their preterm infant's care in order to develop their sensitivity to their newborn infant...
March 23, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28335649/plasma-growth-arrest-specific-6-levels-in-term-and-preterm-newborns
#18
E Eksi Alp, N Altinkaya, Z Cagman, F Uras
OBJECTIVE: Growth Arrest-Specific 6 (GAS6) is a vitamin K-dependent protein. Despite a similar structure to Protein S, it has no anticoagulant activity. An association between GAS6 and some diseases for adults has been reported. In the absence of prospective clinical studies of GAS6 in neonates, so far, the objective of this study is to obtain, for the first time, plasma GAS6 levels before and after vitamin K1 prophylaxis in full-term and pre-term newborns. METHODS: 80 newborn (40 term and 40 preterm) were recruited for this study...
March 23, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28335478/lactational-stage-of-pasteurized-human-donor-milk-contributes-to-nutrient-limitations-for-infants
#19
Christina J Valentine, Georgia Morrow, Amanda Reisinger, Kelly A Dingess, Ardythe L Morrow, Lynette K Rogers
BACKGROUND: Mother's own milk is the first choice for feeding preterm infants, but when not available, pasteurized human donor milk (PDM) is often used. Infants fed PDM have difficulties maintaining appropriate growth velocities. To assess the most basic elements of nutrition, we tested the hypotheses that fatty acid and amino acid composition of PDM is highly variable and standard pooling practices attenuate variability; however, total nutrients may be limiting without supplementation due to late lactational stage of the milk...
March 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28334949/mycoplasma-hominis-ureaplasma-urealyticum-and-chlamydia-trachomatis-respiratory-colonization-in-malaysian-preterm-infants
#20
Khuen Foong Ng, Kah Kee Tan, Mi-Chelle Chok, Nurul Zamil Mohd Muzzamil, Pauline Choo, Umathevi Paramasivam, Marlindawati Mohd Ali, Jun Yan Goh, Wan Ying Gan
This prospective observational study aims to determine the incidence, predictors and clinical features of Mycoplasma hominis (MH), Ureaplasma urealyticum (UU) and Chlamydia trachomatis (CT) respiratory colonization in infants <37 weeks of gestation. A total of 200 preterm newborns admitted to a tertiary center in Malaysia between 2013 and 2015 for increased breathing effort had their respiratory secretions tested for these bacteria by polymerase chain reaction. Fifteen of the 200 (7.5%) infants were detected to have these organisms in their respiratory tracts...
March 2, 2017: Journal of Tropical Pediatrics
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