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Pediatric Research

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https://www.readbyqxmd.com/read/27911435/detecting-biomarkers-of-secondhand-marijuana-smoke-in-young-children
#1
Karen M Wilson, Michelle R Torok, Binnian Wei, Lanqing Wang, Michelle Robinson, Connie S Sosnoff, Benjamin C Blount
BACKGROUND: The impact of secondhand marijuana smoke exposure on children is unknown. New methods allow detection of secondhand marijuana smoke in children. METHODS: We studied children ages 1 month to 2 years hospitalized with bronchiolitis in Colorado from 2013-2015. Parents completed a survey, and urine samples were analyzed for cotinine using LC/MS/MS (LOD 0.03 ng/ml) and marijuana metabolites including COOH-THC (LOD 0.015 ng/ml). RESULTS: A total of 43 subjects had urine samples available for analysis...
December 2, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27901513/making-the-next-seven-great-achievements-in-pediatric-research-a-reality
#2
Paul J Chung
No abstract text is available yet for this article.
November 30, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27901512/mitochondrial-dysfunction-in-alveolar-and-white-matter-developmental-failure-in-premature-infants
#3
Vadim S Ten
At birth, some organs in premature infants are not developed enough to meet challenges of the extra-uterine life. Although growth and maturation continues after premature birth, postnatal organ development may become sluggish or even arrested, leading to organ dysfunction. There is no clear mechanistic concept of this postnatal organ developmental failure in premature neonates. This review introduces a concept-forming hypothesis: Mitochondrial bioenergetic dysfunction is a fundamental mechanism of organs maturation failure in premature infants...
November 30, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27901511/the-future-of-pediatric-research-european-perspective
#4
Eleanor J Molloy, Neena Modi, Anne Greenough, Hugo Lagercrantz, Cynthia F Bearer, Mark Turner
No abstract text is available yet for this article.
November 30, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27893721/biomarkers-associated-with-bronchopulmonary-dysplasia-mortality-in-premature-infants
#5
Jessica Balena-Borneman, Namasivayam Ambalavanan, Hemant K Tiwari, Russell L Griffin, Brian Halloran, David Askenazi
BACKGROUND: Bronchopulmonary dysplasia (BPD) portends lifelong organ impairment and death. Our ability to predict BPD in first days of life is limited, but could be enhance using novel biomarkers. METHODS: Using an available clinical and urine biomarker database obtained from a prospective 113 infant cohort (birth weight ≤1200 g and/or gestational age ≤31 weeks), we evaluated the independent association of 14 urine biomarkers with BPD/mortality. RESULTS: Two of the 14 urine biomarkers were independently associated with BPD/mortality after controlling for gestational age (GA), small for gestational age (SGA), and intubation status...
November 28, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27893720/a-functional-atg16l1-t300a-variant-is-associated-with-necrotizing-enterocolitis-in-premature-infants
#6
Venkatesh Sampath, Vineet Bhandari, Jessica Berger, Daniel Merchant, Liyun Zhang, Mihoko Ladd, Heather Menden, Jeffery Garland, Namasivayam Ambalavanan, Neil Mulrooney, Michael Quasney, John Dagle, Pascal M Lavoie, Pippa Simpson, Mary Dahmer
BACKGROUND: The genetic basis of dysfunctional immune responses in necrotizing enterocolitis (NEC) remains unknown. We hypothesized that variants in Nucleotide binding and Oligomerization Domain (NOD)-Like Receptors (NLRs) and Autophagy (ATG) genes modulate vulnerability to NEC. METHODS: We genotyped a multi-center cohort of premature infants with and without NEC for NOD1, NOD2, ATG16L1, CARD8 and NLRP3 variants. Chi-square tests and logistic regression were used for statistical analysis...
November 28, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27886192/phytanic-acid-attenuates-insulin-like-growth-factor-1-activity-via-nitric-oxide-mediated-%C3%AE-secretase-activation-in-rat-aortic-smooth-muscle-cells-possible-implications-for-pathogenesis-of-infantile-refsum-disease
#7
Gursev S Dhaunsi, Mayra Alsaeid, Saghir Akhtar
BACKGROUND: Infantile Refsum disease (IRD), a peroxisomal disease with defective phytanic acid oxidation, causes neurological impairment and development delay. Insulin-like growth factor-1 (IGF-1) regulates child development and to understand molecular mechanism(s) of IRD, we examined the effect of PA on IGF-1 activity. METHODS: BrdU incorporation was measured in rat aortic smooth muscle cell (SMC) cultures following treatment with fetal bovine serum (FBS), basic fibroblast growth factor (bFGF), platelet-derived growth factor (PDGF) or IGF-1 in the absence or presence of PA...
November 25, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27886191/hemodynamic-and-metabolic-effects-of-a-new-pediatric-dobutamine-formulation-in-hypoxic-newborn-pigs
#8
Victoria E Mielgo, Adolf Valls-I-Soler, Juan M Lopez de Heredia, Heike Rabe, Carmen Rey-Santano
BACKGROUND: The aim of our study was to measure drug-related changes in hemodynamics and oxygen metabolism in response to different doses of an age-appropriate dobutamine formulation in hypoxic pigs. A secondary aim was to validate superior vena cava flow (SVCF) as a marker of cardiac index (CI) for subsequent clinical trials of this formulation in humans. METHODS: Newborn pigs (n=18) were exposed to 2h-hypoxia (10-15% oxygen) followed by reoxygenation (21-30% oxygen 4h)...
November 25, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27879968/can-urinary-indolylacroylglycine-iag-levels-be-used-to-determine-whether-children-with-autism-will-benefit-from-dietary-intervention
#9
Julie Wilson, Barry Wright, Sandra Jost, Robert Smith, Helen Pearce, Sally Richardson
BACKGROUND: An increase in urinary indolyl-3-acryloylglycine (IAG) has been reported in children with ASD who suffer with bowel problems in comparison to ASD children without gastrointestinal (GI) problems. The case for dietary intervention for ASD children with GI symptoms might be strengthened were such a difference to be autism-specific. METHODS: Quantitative analysis of urinary IAG levels was performed for 53 children on the autism spectrum and 146 age-matched controls...
November 23, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27870827/augmented-th17-type-immune-responses-in-preterm-neonates-exposed-to-histologic-chorioamnionitis
#10
Daniel C Rito, Luke T Viehl, Paula M Buchanan, Seema Haridas, Joyce M Koenig
BACKGROUND: Histologic chorioamnionitis (HCA) is a placental inflammatory disorder that frequently precedes preterm delivery. HCA increases risk for long-standing inflammatory injury and may influence immune programming, particularly in preterm (PT) neonates. We hypothesized that HCA exposure is associated with an increased circulating frequency of pro-inflammatory, Th17-type responses. METHODS: Placental cord blood was collected from HCA-exposed or control neonates (23-41 weeks gestation)...
November 21, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27870826/development-and-verification-of-a-pharmacokinetic-model-to-optimize-physiologic-replacement-of-rhigf-1-rhigfbp-3-in-preterm-infants
#11
Jou-Ku Chung, Boubou Hallberg, Ingrid Hansen-Pupp, Martin A Graham, Gerald Fetterly, Jyoti Sharma, Adina Tocoian, Nerissa C Kreher, Norman Barton, Ann Hellström, David Ley
BACKGROUND: rhIGF-1/rhIGFBP-3 is being investigated for prevention of retinopathy of prematurity in extremely preterm infants. METHODS: A population pharmacokinetic model was developed using data from phase I/II (Sections A-C) trials of rhIGF-1/rhIGFBP-3 and additional studies in preterm infants to predict optimal dosing to establish/maintain serum IGF-1 within physiological intrauterine levels. In Section D of the phase II study, infants (GA [wk+d] 23+0 to 27+6) were randomized to rhIGF-1/rhIGFBP-3, administered at the model-predicted dose of 250 µg/kg/d continuous i...
November 21, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27861467/antenatal-dexamethasone-vs-betamethasone-dosing-for-lung-maturation-in-fetal-sheep
#12
Augusto F Schmidt, Matthew W Kemp, Paranthaman S Kannan, Boris W Kramer, John P Newnham, Suhas G Kallapur, Alan H Jobe
BackgroundDexamethasone-phosphate (Dex-PO4) and the combination betamethasone-phosphate (Beta-PO4) + betamethasone-acetate (Beta-Ac) are the most used antenatal corticosteroids to promote fetal lung maturation . We compared fetal lung maturation induced by Beta-Ac+Beta-PO4, Dex-PO4, or Beta-PO4 alone.MethodsPregnant ewes received 2 intramuscular doses 24h apart of 0.25mg/kg/dose of Beta-Ac+Beta-PO4, Dex-PO4 or Beta-PO4; or 2 doses of 0.125mg/kg/dose of Beta-PO4 at 6h, 12h, or 24h intervals. Fetuses were delivered 48h after the first dose and ventilated for 30min...
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27861466/the-human-fetal-right-ventricular-myocardium-appears-without-a-sub-epicardial-base-apex-oriented-layer-of-myocytes
#13
Peter Agger, Daniel M Gleesborg, Mette Ramsing, Vibeke Hjortdal
No abstract text is available yet for this article.
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27861465/universal-newborn-hearing-screening-methods-and-results-obstacles-and-benefits-newborn-hearing-screening
#14
Katarzyna E Wroblewska-Seniuk, Piotr Dabrowski, Witold Szyfter, Jan Mazela
The incidence of sensorineural hearing loss ranges from 1 to 3 per 1000 live births in term healthy neonates, and 2-4 per 100 in high-risk infants, a ten-fold increase. Early identification and intervention with hearing augmentation within 6 months yields optimal effect. If undetected and without treatment, significant hearing impairment may negatively impact speech development and lead to disorders in psychological and mental behaviors.Hearing screening programs in newborns enable detection of hearing impairment in the first days after birth...
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27861464/pubertal-height-gain-is-inversely-related-to-peak-bmi-in-childhood
#15
Anton Holmgren, Aimon Niklasson, Andreas F M Nierop, Lars Gelander, A Stefan Aronson, Agneta Sjöberg, Lauren Lissner, Kerstin Albertsson-Wikland
BackgroundChildhood BMI may influence subsequent growth in height as well as the timing of puberty. The aim of the present study was to investigate associations between BMI in childhood and subsequent height gain/pubertal growth.MethodsLongitudinal growth data were used (GrowUp1990 Gothenburg cohort, n=1901). The QEPS growth-model was used to characterize height gain in relation to the highest BMISDS value between 3.5 and 8 years of age. Children were defined as overweight/obese (OwOb) or normal weight/underweight (NwUw), using the 2012 International Obesity Task Force criteria...
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27861463/promoting-healthy-eating-and-active-playtime-by-connecting-to-nature-families-with-preschool-children-evaluation-of-pilot-study-play-grow
#16
Tanja Sobko, Zhenzhen Jia, Matthew Kaplan, Alfred Lee, Chia-Huei Tseng
BackgroundThis pilot project aimed to evaluate the "Play&Grow" program which promotes age-appropriate dietary habits and playtime healthy routines through "connectedness to nature" experiences in Hong Kong families with young children.Method38 pre-schoolers (aged 33.97 ± 9.38 months), mothers and their domestic workers were recruited. The families attended one workshop/week for a 4-month period, consisting of: 1) health topic; 2) food games; 3) nature-related outdoor activities.ResultsFeeding practices, particularly Promoting and Encouragement to eat (PE) and Instrumental Feeding (IF) improved after the intervention (p =...
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27855152/heart-rate-variability-in-hypoxic-ischemic-encephalopathy-during-therapeutic-hypothermia
#17
Robert M Goulding, Nathan J Stevenson, Deirdre M Murray, Vicki Livingstone, Peter M Filan, Geraldine B Boylan
BACKGROUND: Therapeutic hypothermia (TH) aims to ameliorate further injury in infants with moderate and severe hypoxic ischemic encephalopathy (HIE). We aim to assess the effect of TH on heart rate variability (HRV) in infants with HIE. METHODS: Multi-channel video-electroencephalography (EEG) and electrocardiography were assessed at 6-72h after birth in full-term infants with HIE, recruited prior to (pre-TH group) and following (TH group) the introduction of TH in our neonatal unit...
November 17, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27855151/advances-in-the-care-of-children-with-lupus-nephritis
#18
Scott E Wenderfer, Natasha M Ruth, Hermine I Brunner
The care of children with lupus nephritis (LN) has changed dramatically over the past 50 years. The majority of patients with childhood-onset systemic lupus erythematosus (cSLE) develop LN. In the 1960's, prognosis in children was worse than in adults; therapies were limited and toxic. Nearly half of cases resulted in death within 2-years. Since this time, several diagnostic recommendations and disease-specific indices have been developed to assist physicians caring for patients with LN. Pediatric researchers are validating and adapting these indices and guidelines for the treatment of LN in cSLE...
November 17, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27855150/a-novel-missense-mutation-in-the-transcription-factor-foxf1-co-segregating-with-infantile-hypertrophic-pyloric-stenosis-in-the-extended-pedigree-linked-to-ihps5-on-chromosome-16q24
#19
Kate V Everett, Paris Ataliotis, Barry A Chioza, Charles Shaw-Smith, Eddie Mk Chung
BACKGROUND: The aim was to identify susceptibility alleles for infantile hypertrophic pyloric stenosis (IHPS) in a pedigree previously linked to IHPS5 on chromosome 16q24. METHODS: We screened the positional and functional candidate gene FOXF1 by Sanger sequencing in a single affected individual. All family members for whom DNA was available were genotyped to determine co-segregation status of the putative causal variant. Immunofluorescence studies were performed to compare the cellular localisation of wildtype and mutant form of the protein...
November 17, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27855149/placental-pathology-and-hypospadias
#20
Yan Chen, Luming Sun, Hongquan Geng, Xiaoping Lei, Jun Zhang
BACKGROUND: Studies have shown that hypospadias is associated with placenta-mediated pregnancy complication (PMPC). The role of placental lesions is still unclear. We aimed to examine the association between hyposadias and placental pathology, and the effect of PMPC. METHODS: Using data from the U.S. Collaborative Perinatal Project in 1959-1966, we identified 15,780 male subjects (167 hypospadias) for analysis. Detailed placental examinations were conducted following a standard protocol...
November 17, 2016: Pediatric Research
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