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https://www.readbyqxmd.com/read/28447406/the-prenatal-gut-microbiome-are-we-colonized-with-bacteria-in-utero
#1
REVIEW
R W Walker, J C Clemente, I Peter, R J F Loos
The colonization of the gut with microbes in early life is critical to the developing newborn immune system, metabolic function and potentially future health. Maternal microbes are transmitted to offspring during childbirth, representing a key step in the colonization of the infant gut. Studies of infant meconium suggest that bacteria are present in the foetal gut prior to birth, meaning that colonization could occur prenatally. Animal studies have shown that prenatal transmission of microbes to the foetus is possible, and physiological changes observed in pregnant mothers indicate that in utero transfer is likely in humans as well...
April 26, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/28437538/effects-of-diagnosis-by-newborn-screening-for-cystic-fibrosis-on-weight-and-length-in-the-first-year-of-life
#2
Daniel H Leung, Sonya L Heltshe, Drucy Borowitz, Daniel Gelfond, Margaret Kloster, James E Heubi, Michael Stalvey, Bonnie W Ramsey
Importance: Since the implementation of universal newborn screening (NBS) for cystic fibrosis (CF), the timing and magnitude of growth deficiency or its association with correlates of disease among infants with CF who underwent NBS has not been well described. Objective: To examine incremental weight gain, linear growth, and clinical features in the first year of life among infants with CF who underwent NBS. Design, Setting, and Participants: The Baby Observational and Nutrition Study (BONUS), a multicenter, longitudinal, observational cohort study, was conducted during regular CF clinic visits in the first 12 months of life at 28 US Cystic Fibrosis Foundation-accredited Care Centers from January 7, 2012, through May 31, 2015...
April 24, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28437442/relationship-between-early-onset-severe-intrahepatic-cholestasis-of-pregnancy-and-higher-risk-of-meconium-stained-fluid
#3
Maria C Estiú, Maria A Frailuna, Carla Otero, Marcela Dericco, Catherine Williamson, Jose J G Marin, Rocio I R Macias
BACKGROUND: Intrahepatic cholestasis of pregnancy (ICP) is the commonest gestational liver disease. The risk of adverse fetal outcome has been associated with the severity of maternal hypercholanemia after diagnosis. OBJECTIVE: To investigate whether there is a relationship between the severity and timing of onset of hypercholanemia and the risk of meconium-stained amniotic fluid (MSAF) and adverse neonatal events. STUDY DESIGN: The study included 382 pregnancies complicated by ICP managed at a referral hospital in Buenos Aires (Argentina) between June 2009 and December 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28420732/modulation-of-tmem16a-channel-activity-by-the-von-willebrand-factor-type-a-vwa-domain-of-the-calcium-activated-chloride-channel-regulator-1-clca1
#4
Monica Sala-Rabanal, Zeynep Yurtsever, Kayla N Berry, Colin G Nichols, Tom J Brett
Calcium-activated chloride channels (CaCCs) are key players in transepithelial ion transport and fluid secretion, smooth muscle constriction, neuronal excitability, and cell proliferation. The CaCC regulator 1 (CLCA1) modulates the activity of the CaCC TMEM16A/Anoctamin 1 (ANO1) by directly engaging the channel at the cell surface, but the exact mechanism is unknown. Here, we demonstrate that the von Willebrand factor type A (VWA) domain within the cleaved CLCA1 N-terminal fragment is necessary and sufficient for this interaction...
April 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28420276/the-influence-of-maternal-vaginal-flora-on-the-intestinal-colonization-in-newborns-and-3-month-old-infants
#5
Iwona Gabriel, Anita Olejek, Krystyna Stencel-Gabriel, Miroslaw Wielgoś
The role of maternal vaginal bacteria on the colonization of neonatal gut is still matter of discussion. Our aim was estimate the role of maternal vaginal flora on the development of intestinal flora in neonates and 3- months-old infants. 79 maternal-neonatal pairs were included in the study. Vaginal swabs were taken before the rupture of membranes after admission to the delivery ward. First neonatal stool (meconium) and stool at 3-months-old infants were collected and cultured. All samples were subject to a microbiological analysis for Streptococcus, Staphylococcus, Bifidobacterium, Clostridium (including Cl...
April 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28419406/routine-oro-nasopharyngeal-suction-versus-no-suction-at-birth
#6
REVIEW
Jann P Foster, Jennifer A Dawson, Peter G Davis, Hannah G Dahlen
BACKGROUND: Oro/nasopharyngeal suction is a method used to clear secretions from the oropharynx and nasopharynx through the application of negative pressure via a suction catheter or bulb syringe. Traditionally, airway oro/nasopharyngeal suction at birth has been used routinely to remove fluid rapidly from the oropharynx and nasopharynx in vigorous and non-vigorous infants at birth. Concerns relating to the reported adverse effects of oro/nasopharyngeal suctioning led to a practice review and routine oro/nasopharyngeal suctioning is no longer recommended for vigorous infants...
April 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28416430/-extracorporeal-membrane-oxygenation-in-critically-ill-neonates-and-children
#7
J Rambaud, J Guilbert, I Guellec, S Jean, A Durandy, M Demoulin, A Amblard, R Carbajal, P-L Leger
Extracorporeal membrane oxygenation is used as a last resort during neonatal and pediatric resuscitation in case of refractory circulatory or respiratory failure under maximum conventional therapies. Different types of ECMO can be used depending on the initial failure. The main indications for ECMO are refractory respiratory failure (acute respiratory distress syndrome, status asthmaticus, severe pneumonia, meconium aspiration syndrome, pulmonary hypertension) and refractory circulatory failure (cardiogenic shock, septic shock, refractory cardiac arrest)...
April 14, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28411000/meconium-aspiration-or-respiratory-distress-associated-with%C3%A2-meconium-stained-amniotic-fluid
#8
REVIEW
Nestor E Vain, Daniel G Batton
The designation meconium aspiration syndrome (MAS) reflects a spectrum of disorders in infants born with meconium-stained amniotic fluid, ranging from mild tachypnea to severe respiratory distress and significant mortality. The frequency of MAS is highest among infants with post-term gestation, thick meconium, and birth asphyxia. Pulmonary hypertension is an important component in severe cases. Prenatal hypopharyngeal suctioning and postnatal endotracheal intubation and suctioning of vigorous infants are not effective...
April 11, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28409283/body-composition-and-lung-function-in-children-with-cystic-fibrosis-and-meconium-ileus
#9
Artemis Doulgeraki, Argyri Petrocheilou, Glykeria Petrocheilou, George Chrousos, Stavros-Eleftherios Doudounakis, Athanasios G Kaditis
The aim of this study was to explore whether history of meconium ileus (MI) at birth in children and adolescents with cystic fibrosis (CF) adversely affects body composition and lung function in later life. Data of children and adolescents with CF who underwent spirometry and DXA as part of their routine care were analyzed. Associations between MI (explanatory variable) and areal bone mineral density (total body less head-TBLH aBMD), lean tissue mass (LTM), and fat mass (FM) (outcomes) were assessed using general linear models...
April 13, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28407823/-application-of-humidified-high-flow-nasal-cannula-in-neonates-with-meconium-aspiration-syndrome-and-pulmonary-hypertension-after-extubation
#10
Xiao-Yan Gao, Lin Feng, Yu-Fen Qiu, Xin-Nian Pan
OBJECTIVE: To investigate the clinical value of humidified high-flow nasal cannula (HHFNC) as a respiratory support after extubation by comparing it with nasal continuous positive airway pressure (NCPAP) in neonates with meconium aspiration syndrome (MAS) and persistent pulmonary hypertension of the newborn (PPHN). METHODS: A total of 78 neonates with MAS and PPHN were randomly administered with HHFNC or NCPAP immediately after extubation. The following indices were compared between the two groups: blood gas parameters, duration of noninvasive ventilation, rate of extubation failure, and incidence of complications, such as nasal damage, abdominal distension, and intraventricular hemorrhage...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28405117/oligoamnios-and-perinatal-outcome
#11
Sandhyasri Panda, M Jayalakshmi, G Shashi Kumari, G Mahalakshmi, Y Srujan, V Anusha
OBJECTIVES: We aimed at evaluating the predictive value of amniotic fluid index ≤5 on perinatal outcome in terms of effect on cardiotocography, mode of delivery, meconium in liquor, birth weight, fetal distress, APGAR score at birth and neonatal admission to ICU. METHODS: This is a prospective study of 308 antenatal women admitted to labor ward of MIMS during February 2014-December 2015 with gestational ages between 34 and 41 weeks. All women enrolled were subjected to history taking, examination, AFI estimation and compared between those with AFI ≤5 from rest...
April 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/28403474/smoking-in-pregnancy-and-fetal-growth-the-case-for-more-intensive-assessment
#12
Shannon Shisler, Rina D Eiden, Danielle S Molnar, Pamela Schuetze, Marilyn Huestis, Gregory Homish
Introduction: Many studies on prenatal tobacco exposure (PTE) effects have relied on single item retrospective measures of PTE. However, it is unclear how these single item measures may relate to more intensive maternal self-reports and to biological markers of maternal use and/or fetal exposure. It is also unclear whether these measures may be more valid predictors of fetal growth (gestational age, birthweight, head circumference, and birth length). Methods: Data were obtained from 258 women during their pregnancy...
May 1, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28391772/intrapartum-fever-and-the-risk-for-perinatal-complications-the-effect-of-fever-duration-and-positive-cultures
#13
Eran Ashwal, Lina Salman, Yossi Tzur, Amir Aviram, Tali Ben-Mayor Bashi, Yariv Yogev, Liran Hiersch
OBJECTIVE: To estimate the association between intrapartum fever and adverse perinatal outcome. METHODS: A retrospective cohort study of women attempting vaginal delivery at term in a tertiary hospital (2012-2015). Perinatal outcome of deliveries complicated by intrapartum fever (≥38.0 °C) were compared to women with no intrapartum fever matched by parity and gestational age at delivery in a 1:2 ratio. Maternal outcome included cesarean section (CS), operative vaginal delivery (OVD), retained placenta or post-partum hemorrhage...
April 24, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28391132/antenatal-prognostic-factor-of-fetal-echogenic-bowel
#14
Candice Ronin, Pierre Mace, Fabien Stenard, Anderson Loundou, Marianne Capelle, Isabelle Mortier, Marie Christine Pellissier, Sabine Sigaudy, Annie Levy, Claude D'ercole, Pascale Hoffmann, Thierry Merrot, Jonathan Lopater, Pascal De Lagausie, Nicole Philip, Florence Bretelle
OBJECTIVE: The aim of this study was to identify antenatal prognostic factors of neonatal outcomes in cases of fetal echogenic bowel (FEB). STUDY DESIGN: A retrospective study in three tertiary referral centers including fetal echogenic bowel over a 10-year period (from January 2003 to December 2013). The echogenicity of the fetal bowel was graded from 1 to 3, according to Slotnick's definition. Associated echographic findings such as bowel dilations, gallbladder abnormalities, calcifications, extra-abdominal abnormalities, intrauterine growth restriction (IUGR) and a decrease in amniotic fluid volume, if present were also recorded...
May 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28389640/the-vernix-caseosa-is-the-main-site-of-dioxin-excretion-in-the-human-foetus
#15
Seiichi Morokuma, Kiyomi Tsukimori, Tsuguhide Hori, Kiyoko Kato, Masutaka Furue
Dioxins are highly toxic to foetuses and prenatal exposure leads to adverse health effects; however, the metabolic pathways involved in dioxin excretion are poorly understood. We determined the dynamics of maternal-to-foetal dioxin transfer during normal pregnancy and how foetuses eliminate polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and non-ortho polychlorinated biphenyls. Dioxin levels in maternal blood, cord blood, placenta, vernix caseosa, meconium, and amniotic fluid were analysed by high-resolution gas chromatography/mass spectrometry...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28372838/development-and-validation-of-a-liquid-chromatography-tandem-mass-spectrometry-method-for-the-determination-of-cannabinoids-and-phase-i-and-ii-metabolites-in-meconium
#16
Pablo Prego-Meleiro, Elena Lendoiro, Marta Concheiro, Angelines Cruz, Manuel López-Rivadulla, Ana de Castro
A liquid chromatography-tandem mass spectrometry (LC-MSMS) method was developed and fully validated for the determination of Δ(9)-tetrahydrocannabinol (THC), 11-hydroxyTHC (OHTHC), 11-nor-9-carboxyTHC (THCCOOH), 8-β-11-dihydroxyTHC (diOHTHC), cannabinol, cannabidiol, and THC and THCCOOH glucuronides in 0.25±0.02g meconium. Samples were homogenized in methanol and subjected to cation exchange solid-phase extraction. Chromatographic separation was performed on a Kinetex C18 column (50 mm×2.1mm, 2.6μm) at 35°C, with a gradient of 0...
March 25, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28369712/computerized-data-driven-interpretation-of-the-intrapartum-cardiotocogram-a-cohort-study
#17
Antoniya Georgieva, Christopher W G Redman, Aris T Papageorghiou
Continuous intrapartum fetal monitoring remains a significant clinical challenge. We propose utilising cohorts of routinely collected data. We aim to combine non-classical (data-driven) and classical cardiotocography (CTG) features with clinical features into a system (OxSys), which generates automated alarms for the fetus at risk of intrapartum hypoxia. We hypothesise that OxSys can outperform clinical diagnosis of 'fetal distress', when optimised and tested over large retrospective datasets MATERIAL AND METHODS: We studied a cohort of 22,790 labouring women (≥36 weeks gestation)...
March 28, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28351386/midwife-led-maternity-care-in-ireland-a-retrospective-cohort-study
#18
Anna Dencker, Valerie Smith, Colette McCann, Cecily Begley
BACKGROUND: Midwife-led maternity care is shown to be safe for women with low-risk during pregnancy. In Ireland, two midwife-led units (MLUs) were introduced in 2004 when a randomised controlled trial (the MidU study) was performed to compare MLU care with consultant-led care (CLU). Following study completion the two MLUs have remained as a maternity care option in Ireland. The aim of this study was to evaluate maternal and neonatal outcomes and transfer rates during six years in the larger of the MLU sites...
March 28, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28350353/insect-artifacts-are-more-than-just-altered-bloodstains
#19
REVIEW
David Rivers, Theresa Geiman
The bases for forensic entomology are that insects and their arthropod relatives can serve as evidence in criminal, medical and civil legal matters. However, some of the very same species that provide utility to legal investigations can also complicate crime scenes by distorting existing body fluid evidence (e.g., bloodstains, semen, saliva) and/or depositing artifacts derived from the insect alimentary canal at primary or secondary crime scenes. The insect contaminants are referred to as insect stains, artifacts, specks or spots, and are most commonly associated with human bloodstains...
March 28, 2017: Insects
https://www.readbyqxmd.com/read/28339882/stability-of-21-cocaine-opioid-and-benzodiazepine-drug-analytes-in-meconium-at-3-temperatures
#20
Fang Wu, Stephanie J Marin, Chantry J Clark, Gwendolyn A McMillin
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
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