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https://www.readbyqxmd.com/read/28732119/association-between-pm2-5-and-pm2-5-constituents-and-preterm-delivery-in-california-2000-2006
#1
Rupa Basu, Dharshani Pearson, Keita Ebisu, Brian Malig
BACKGROUND: Particulate matter (PM) has been documented to contribute to preterm delivery. However, few studies have investigated the relationships between individual constituents of fine PM (PM2.5 ) and preterm delivery, and factors that may modify their associations. METHODS: In this study, we examined the associations between several prenatal exposure metrics to PM2.5 and 23 constituents of PM2.5 and preterm delivery in California from 2000 to 2006. In a retrospective cohort study including 231 637 births, we conducted logistic regression analyses adjusting for maternal, infant, temporal, geographic, and neighbourhood characteristics...
July 21, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28732016/maternal-residential-proximity-to-unconventional-gas-development-and-perinatal-outcomes-among-a-diverse-urban-population-in-texas
#2
Kristina W Whitworth, Amanda K Marshall, Elaine Symanski
OBJECTIVE: To assess associations between unconventional natural gas development (UGD) and perinatal outcomes. METHODS: We conducted a retrospective birth cohort study among 158,894 women with a birth or fetal death from November 30, 2010-November 29, 2012 in the Barnett Shale, in North Texas. We constructed three UGD-activity metrics by calculating the inverse distance-weighted sum of active wells within three separate geographic buffers surrounding the maternal residence: ≤½, 2, or 10-miles...
2017: PloS One
https://www.readbyqxmd.com/read/28731581/the-inherited-risk-of-retained-placenta-a-population-based-cohort-study
#3
Margit Endler, Sven Cnattingius, Michaela Granfors, Anna-Karin Wikström
OBJECTIVE: To investigate whether retained placenta in the first generation is associated with an increased risk of retained placenta in the second generation. DESIGN: Population-based cohort study. SETTING: Sweden. POPULATION: Using linked generational data from the Swedish Medical Birth Register 1973-2012, we identified 494,000 second generation births with information on the birth of the mother (first generation index birth)...
July 21, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28731511/hypothermia-at-neonatal-intensive-care-unit-admission-was-not-associated-with-respiratory-disease-or-death-in-very-preterm-infants
#4
C F Jensen, F Ebbesen, J P Petersen, A Sellmer, C C Bach, T B Henriksen
AIM: This study investigated the association between hypothermia and respiratory distress syndrome (RDS), bronchopulmonary dysplasia (BPD) or death in very preterm infants admitted to a Danish neonatal intensive care unit (NICU). METHODS: We studied 675 infants born at Aalborg University Hospital before 32 weeks and admitted to the NICU from April 1997 to December 2011. Hypothermia was defined as a core temperature of less than 36.5°C on admission. The primary outcome was severe RDS or death within the first three days of life and the secondary outcome was BPD or death before 36 postmenstrual weeks...
July 21, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28731465/pr-set7-deficiency-limits-uterine-epithelial-population-growth-hampering-postnatal-gland-formation-in-mice
#5
Tongtong Cui, Bo He, Shuangbo Kong, Chan Zhou, Hangxiao Zhang, Zhangli Ni, Haili Bao, Jingtao Qiu, Qiliang Xin, Danny Reinberg, John P Lydon, Jinhua Lu, Haibin Wang
Formation of secretary endometrial glands in the uterus known as adenogenesis is a typical process of branching morphogenesis involving dynamic epithelial growth and differentiation. Unsuccessful adenogenesis often leads to female infertility. However, it remains largely unexplored so far regarding the epigenetic machinery governing normal endometrial gland formation. Here, we demonstrated that PR-Set7, an epigenetic regulator for H4K20me1 modification, was extensively expressed in the postnatal uteri, and its conditional deletion resulted in a complete lack of endometrial glands and infertility in mice...
July 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28731129/expression-profile-of-c19mc-micrornas-in-placental-tissue-of-patients-with-preterm-prelabor-rupture-of-membranes-and-spontaneous-preterm-birth
#6
Ilona Hromadnikova, Katerina Kotlabova, Katarina Ivankova, Ladislav Krofta
The aim of the study was to demonstrate that preterm birth (PTB) is associated with altered C19MC microRNA expression profile in placental tissues. Gene expression of 15 placental specific microRNAs (miR‑512‑5p, miR‑515‑5p, miR‑516‑5p, miR‑517‑5p, miR‑518b, miR‑518f‑5p, miR‑519a, miR‑519d, miR‑519e‑5p, miR‑520a‑5p, miR‑520h, miR‑524‑5p, miR‑525‑5p, miR‑526a and miR‑526b‑5p) was compared between groups: 34 spontaneous PTB, 108 preterm prelabor rupture of membranes (PPROM) and 20 term in labor pregnancies...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28729911/vaginal-progesterone-to-reduce-preterm-birth-among-hiv-infected-pregnant-women-in-zambia-a-feasibility-study-protocol
#7
Joan T Price, Katie R Mollan, Nurain M Fuseini, Bethany L Freeman, Helen B Mulenga, Amanda H Corbett, Bellington Vwalika, Jeffrey S A Stringer
BACKGROUND: Women infected with HIV have a risk of preterm birth (PTB) that is twice that among uninfected women, and treatment with antiretroviral therapy (ART) may further increase this risk. Progesterone supplementation reduces the risk of preterm delivery in women who have a shortened cervix in the midtrimester. We propose to study the feasibility of a trial of vaginal progesterone (VP) to prevent PTB among HIV-infected women receiving ART in pregnancy. Given low adherence among women self-administering vaginal study product in recent microbicide trials, we plan to investigate whether adequate adherence to VP can be achieved prior to launching a full-scale efficacy trial...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28729888/social-brain-circuitry-and-social-cognition-in-infants-born-preterm
#8
REVIEW
Angela Fenoglio, Michael K Georgieff, Jed T Elison
Preterm birth is associated with an increased risk of adverse neurologic, psychiatric, and cognitive outcomes. The brain circuits involved in processing social information are critical to all of these domains, but little work has been done to examine whether and how these circuits may be especially sensitive to prematurity. This paper contains a brief summary of some of the cognitive, psychiatric, and social outcomes associated with prematurity, followed by a description of findings from the modest body of research into social-cognitive development in infants and children born preterm...
2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28729690/functional-variation-of-shp-2-promoter-is-associated-with-preterm-birth-and-delayed-myelination-and-motor-development-in-preterm-infants
#9
So-Yeon Shim, Hye Jin Jeong, Hyo Jin Park, Eun Young Kwon, Bo Min Kim, Yang Ji Choi, Youn-Hee Choi, Su Jin Cho, Ji Ha Choi, Eun Ae Park
Src homology 2 domain-containing protein tyrosine phosphatase 2 (SHP-2) is a cytoplasmic tyrosine phosphatase that is highly expressed in hematopoietic cells and in the CNS and exerts opposite effects on signal transduction by exerting a neuroprotective or proapoptotic effect. Several mutations of SHP-2 have been found in children with myeloproliferative disorders or malignant leukemia, and some of these can affect brain development. In the present study, we aimed to identify and functionally characterize genetic variations in SHP-2 in 72 preterm and 58 full-term infants and to evaluate the effect of the variations on neurodevelopment in preterm infants...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729313/fetal-doppler-velocimetry-and-bronchopulmonary-dysplasia-risk-among-growth-restricted-preterm-infants-an-observational-study
#10
Alessandra Lio, Paolo Rosati, Roberta Pastorino, Francesco Cota, Milena Tana, Chiara Tirone, Claudia Aurilia, Cinzia Ricci, Alessandro Gambacorta, Angela Paladini, Ilenia Mappa, Silvia Buongiorno, Gian Franco Zannoni, Costantino Romagnoli, Giovanni Vento
OBJECTIVE: To investigate whether fetal growth restriction (FGR) diagnosis, based on pathological prenatal fetal Doppler velocimetry, is associated with bronchopulmonary dysplasia (BPD) independently of being small for gestational age (SGA) per se at birth among very preterm infants. DESIGN: Prospective, observational study. FGR was defined as failing fetal growth in utero and fetal Doppler velocimetry abnormalities. SETTING: Policlinico Universitario Agostino Gemelli, Roma, Italy...
July 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28729110/no-211-screening-and-management-of-bacterial-vaginosis-in-pregnancy
#11
Mark H Yudin, Deborah M Money
OBJECTIVE: To review the evidence and provide recommendations on screening for and management of bacterial vaginosis in pregnancy. OPTIONS: The clinical practice options considered in formulating the guideline. OUTCOMES: Outcomes evaluated include antibiotic treatment efficacy and cure rates, and the influence of the treatment of bacterial vaginosis on the rates of adverse pregnancy outcomes such as preterm labour and delivery and preterm premature rupture of membranes...
August 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28728761/predictors-of-co-occurring-neurodevelopmental-disabilities-in-children-with-autism-spectrum-disorders
#12
Lauren Head Zauche, Ashley E Darcy Mahoney, Melinda K Higgins
PURPOSE: Co-occurring neurodevelopmental disabilities (including cognitive and language delays and attention deficit hyperactivity disorder) affect over half of children with ASD and may affect later behavioral, language, and cognitive outcomes beyond the ASD diagnosis. However, no studies have examined predictors of co-occurring neurodevelopmental disabilities in children with ASD. This study investigated whether maternal sociodemographic, perinatal and neonatal factors are associated with co-occurring disabilities...
July 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28728571/the-prevalence-and-risk-factors-of-preterm-small-for-gestational-age-infants-a-population-based-retrospective-cohort-study-in-rural-chinese-population
#13
Shi Chen, Rong Zhu, Huijuan Zhu, Hongbo Yang, Fengying Gong, Linjie Wang, Yu Jiang, Bill Q Lian, Chengsheng Yan, Jianqiang Li, Qing Wang, Shi-Kun Zhang, Hui Pan
BACKGROUND: Preterm birth and small for gestational age (SGA) are strong indicators of neonatal adverse outcomes. With the growing importance of preterm SGA infants, we aim to evaluate the prevalence and risk factors for preterm SGA in China. METHOD: We analyzed the data of parents and infants from a population-based cohort research of the free National Pre-pregnancy Checkups Project (NPCP) in rural China. Only singleton live births that occurred between 24 weeks +0 days and 36 weeks +6 days of pregnancy were included in this study...
July 20, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28728549/binomial-outcomes-in-dataset-with-some-clusters-of-size-two-can-the-dependence-of-twins-be-accounted-for-a-simulation-study-comparing-the-reliability-of-statistical-methods-based-on-a-dataset-of-preterm-infants
#14
Odile Sauzet, Janet L Peacock
BACKGROUND: The analysis of perinatal outcomes often involves datasets with some multiple births. These are datasets mostly formed of independent observations and a limited number of clusters of size two (twins) and maybe of size three or more. This non-independence needs to be accounted for in the statistical analysis. Using simulated data based on a dataset of preterm infants we have previously investigated the performance of several approaches to the analysis of continuous outcomes in the presence of some clusters of size two...
July 20, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28728548/social-brain-circuitry-and-social-cognition-in-infants-born-preterm
#15
REVIEW
Angela Fenoglio, Michael K Georgieff, Jed T Elison
Preterm birth is associated with an increased risk of adverse neurologic, psychiatric, and cognitive outcomes. The brain circuits involved in processing social information are critical to all of these domains, but little work has been done to examine whether and how these circuits may be especially sensitive to prematurity. This paper contains a brief summary of some of the cognitive, psychiatric, and social outcomes associated with prematurity, followed by a description of findings from the modest body of research into social-cognitive development in infants and children born preterm...
July 19, 2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28728448/pregnancy-and-child-health-outcomes-in-pediatric-and-young-adult-leukemia-and-lymphoma-survivors-a-systematic-review
#16
Ksenya Shliakhtsitsava, Sally A D Romero, Samantha Rose Dewald, H Irene Su
As long-term survival is high for children and young adults diagnosed with leukemia and lymphoma, delineating maternal, fetal and offspring health risks is important to their family planning. This systematic review examined data comparing these health risks between leukemia and lymphoma survivors and women without a history of cancer. Following a search of Embase, PubMed, CINAHL, Cochrane, and Web of Science, 142 articles were screened and 18 were included in this review. No higher risks of spontaneous abortion, maternal diabetes and anemia, stillbirth, birth defects, or childhood cancer in offspring were observed in survivors compared to controls...
July 21, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28727900/head-midline-position-for-preventing-the-occurrence-or-extension-of-germinal-matrix-intraventricular-hemorrhage-in-preterm-infants
#17
REVIEW
Olga Romantsik, Maria Grazia Calevo, Matteo Bruschettini
BACKGROUND: Preterm birth is known to constitute the major risk factor for development of germinal matrix-intraventricular hemorrhage (GM-IVH). Head position may affect cerebral hemodynamics and thus may be involved indirectly in development of GM-IVH. Turning the head toward one side may functionally occlude jugular venous drainage on the ipsilateral side while increasing intracranial pressure and cerebral blood volume. Thus, it has been suggested that cerebral venous pressure is reduced and hydrostatic brain drainage improved if the patient is in supine midline position with the bed tilted 30°...
July 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28727655/preterm-infants-with-biliary-atresia-a-nationwide-cohort-analysis-from-the-netherlands
#18
Daan B E van Wessel, Thomas Boere, Christian V Hulzebos, Ruben H J de Kleine, Henkjan J Verkade, Jan B F Hulscher
OBJECTIVES: atresia (BA) occurs in 0.54/10.000 of overall live births in The Netherlands. BA has an unfavorable prognosis: less than 40% of patients are cleared of jaundice after Kasai portoenterostomy (KPE), 4-year transplant-free survival rate is 46% and the 4-year survival rate is ∼75%. Little is known on difficulties in diagnosis and the outcome of BA in preterm infants. We aimed to analyze the incidence and outcome of BA in preterm infants in The Netherlands. METHODS: Retrospective study including Dutch preterm infants treated for BA...
July 19, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28727133/is-unexplained-elevated-maternal-serum-alpha-fetoprotein-still-important-predictor-for-adverse-pregnancy-outcome
#19
Derya Başbuğ, Alper Başbuğ, Cavidan Gülerman
OBJECTIVES: The purpose of this study was to determined the predictive value of maternal serum alpha-fetoprotein (MSAFP) as a marker for adverse pregnancy outcomes. MATERIAL AND METHODS: This study was carried out at Dr. Zekai Tahir Burak Women's Health Education and Research Hospital between 2009 and 2010. This study included a total of 1,177 pregnant women, including 170 in the study group and 1,007 in the control group. Pregnancy outcomes and characteristics were analyzed with regard to the MSAFP value...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28726791/implementation-of-a-multidisciplinary-guideline-improves-preterm-infant-admission-temperatures
#20
M W Harer, B Vergales, T Cady, A Early, C Chisholm, J R Swanson
BACKGROUND: Hypothermia is a common problem in preterm infants immediately following delivery.Local problem:The rate of admission hypothermia in our neonatal intensive care unit (NICU) was above the rate of comparable NICUs in the Vermont Oxford Network. METHODS: To reduce the rate of preterm admission hypothermia, a quality improvement (QI) project was implemented, utilizing the plan-do-study-act (PDSA) methodology. A guideline for delivery room thermoregulation management in <35-week infants at the University of Virginia was created and put into practice by a multidisciplinary team...
July 20, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
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