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Biomarker preterm infants

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https://www.readbyqxmd.com/read/28059709/microstructure-of-the-default-mode-network-in-preterm-infants
#1
J Cui, O Tymofiyeva, R Desikan, T Flynn, H Kim, D Gano, C P Hess, D M Ferriero, A J Barkovich, D Xu
BACKGROUND AND PURPOSE: Diffusion and fMRI has been providing insights to brain development in addition to anatomic imaging. This study aimed to evaluate the microstructure of white matter tracts underlying the default mode network in premature infants by using resting-state functional MR imaging in conjunction with diffusion tensor imaging-based tractography. MATERIALS AND METHODS: A cohort of 44 preterm infants underwent structural T1-weighted imaging, resting-state fMRI, and DTI at 3T, including 21 infants with brain injuries and 23 infants with normal-appearing structural imaging as controls...
November 10, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28045978/cord-blood-acute-phase-reactants-predict-early-onset-neonatal-sepsis-in-preterm-infants
#2
Leena B Mithal, Hannah L Palac, Ram Yogev, Linda M Ernst, Karen K Mestan
BACKGROUND: Early onset sepsis (EOS) is a major cause of morbidity and mortality in preterm infants, yet diagnosis remains inadequate resulting in missed cases or prolonged empiric antibiotics with adverse consequences. Evaluation of acute phase reactant (APR) biomarkers in umbilical cord blood at birth may improve EOS detection in preterm infants with intrauterine infection. METHODS: In this nested case-control study, infants (29.7 weeks gestation, IQR: 27.7-32...
2017: PloS One
https://www.readbyqxmd.com/read/28034304/temporal-bacterial-and-metabolic-development-of-the-preterm-gut-reveals-specific-signatures-in-health-and-disease
#3
Christopher J Stewart, Nicholas D Embleton, Emma C L Marrs, Daniel P Smith, Andrew Nelson, Bashir Abdulkadir, Tom Skeath, Joseph F Petrosino, John D Perry, Janet E Berrington, Stephen P Cummings
BACKGROUND: The preterm microbiome is crucial to gut health and may contribute to necrotising enterocolitis (NEC), which represents the most significant pathology affecting preterm infants. From a cohort of 318 infants, <32 weeks gestation, we selected 7 infants who developed NEC (defined rigorously) and 28 matched controls. We performed detailed temporal bacterial (n = 641) and metabolomic (n = 75) profiling of the gut microbiome throughout the disease. RESULTS: A core community of Klebsiella, Escherichia, Staphyloccocus, and Enterococcus was present in all samples...
December 29, 2016: Microbiome
https://www.readbyqxmd.com/read/28011976/genetic-polymorphisms-of-sp-a-sp-b-and-sp-d-and-risk-of-respiratory-distress-syndrome-in-preterm-neonates
#4
Hong-Yu Chang, Fang Li, Feng-Sheng Li, Cheng-Zhong Zheng, Yan-Zhe Lei, Jing Wang
BACKGROUND We examined selected polymorphisms in 3 pulmonary surfactant-associated proteins (SP) for their influence on serum SP levels and risk of respiratory distress syndrome (RDS) in preterm neonates. MATERIAL AND METHODS Premature infants from a Han population were enrolled, including 100 premature infants with RDS (case group) and 120 premature infants without RDS (control group). SNP genotyping for SP-A (+186A/G and +655C/T), SP-B (-18A/C and 1580C/T), and SP-D (Met11ThrT/C and Ala160ThrG/A) used polymerase chain reaction-restriction fragment length polymorphism...
December 24, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27998626/cardiac-biomarkers-and-haemodynamically-significant-patent-ductus-arteriosus-in-preterm-infants
#5
Dany E Weisz, Patrick J McNamara, Afif El-Khuffash
Accurately defining haemodynamically significant patent ductus arteriosus (PDA) in preterm infants who are at risk of PDA related morbidities are active areas of neonatal research. Natriuretic peptides are cardiac hormones that respond to volume and pressure loading, with elevated plasma levels found in infants with PDA. In the preterm neonatal setting, studies to date have predominantly investigated the ability of these biomarkers to discriminate between infants with and without a PDA at various postnatal ages...
December 17, 2016: Early Human Development
https://www.readbyqxmd.com/read/27925621/presepsin-for-the-detection-of-early-onset-sepsis-in-preterm-newborns
#6
Paolo Montaldo, Roberto Rosso, Alfredo Santantonio, Giovanni Chello, Paolo Giliberti
BACKGROUND: Early-onset sepsis (EOS) is responsible for an important fraction of neonatal morbidity and mortality all over the world. The aim of this study was to assess whether presepsin (P-SEP) can be a more accurate biomarker of EOS compared with pro-calcitonin (PCT) and C-reactive protein (CRP). STUDY DESIGN: Consecutive preterm neonates (<34 wk gestational age, admitted to Neonatal Intensive Care Unit by 6 h of age and undergoing sepsis evaluation) were recruited as part of a case-matched control study...
December 7, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27863706/advanced-neuroimaging-and-its-role-in-predicting-neurodevelopmental-outcomes-in-very-preterm-infants
#7
REVIEW
Nehal A Parikh
Up to 35% of very preterm infants survive with neurodevelopmental impairments (NDI) such as cognitive deficits, cerebral palsy, and attention deficit disorder. Advanced MRI quantitative tools such as brain morphometry, diffusion MRI, magnetic resonance spectroscopy, and functional MRI at term-equivalent age are ideally suited to improve current efforts to predict later development of disabilities. This would facilitate application of targeted early intervention therapies during the first few years of life when neuroplasticity is optimal...
December 2016: Seminars in Perinatology
https://www.readbyqxmd.com/read/27858868/serum-bile-acids-in-term-and-preterm-neonates-a-case-control-study-determining-reference-values-and-the-influence-of-early-onset-sepsis
#8
Evelyn Zöhrer, Bernhard Resch, Hubert Scharnagl, Axel Schlagenhauf, Günter Fauler, Tatjana Stojakovic, Nora Hofer, Uwe Lang, Jörg Jahnel
Serum bile acids (BA) reference values are lacking for neonates. Therefore, this study aimed to determine serum BA reference values in term and preterm neonates. Furthermore, as serum BA concentrations are well-known to rise in septic adults, BA values were determined in early-onset neonatal sepsis (EOS), a common and serious disease in neonates.Using high-performance liquid chromatography-high-resolution mass spectrometry (HPLC-HRMS), we profiled serum BA in 236 infants, including healthy term neonates (n = 84), premature infants (n = 101), and both term infants (n = 35) and preterm infants (n = 16) with EOS...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27846067/detection-of-sepsis-in-preterm-infants-by-fecal-volatile-organic-compounds-analysis-a-proof-of-principle-study
#9
Daniel J C Berkhout, Hendrik J Niemarkt, Martin Buijck, Mirjam M van Weissenbruch, Paul Brinkman, Marc A Benninga, Anton H van Kaam, Boris W Kramer, Peter Andriessen, Nanne K H de Boer, Tim G J de Meij
OBJECTIVES: Several studies associated altered gut microbiota composition in preterm infants with late-onset sepsis (LOS), up to days prior to clinical onset of sepsis. However, microbiota analysis as early diagnostic biomarker is in clinical practice currently not feasible because of logistic aspects and high costs. Therefore, we hypothesized that analysis of fecal volatile organic compounds (VOC) may serve as non-invasive biomarker to predict LOS at a preclinical stage, since VOC reflect the composition and activity of intestinal microbial communities...
November 14, 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27787507/the-associations-between-early-pregnancy-lipid-profiles-and-pregnancy-outcomes
#10
C Wang, W Zhu, Y Wei, R Su, H Feng, E Hadar, M Hod, H Yang
OBJECTIVE: To evaluate the association between early pregnancy lipid profiles and pregnancy outcomes. STUDY DESIGN: Retrospective 6 months analysis of 5218 singleton pregnant women. Each participant's demographic and medical data were collected by questionnaires and medical records. Total cholesterol (TC), triglycerides (TG), high-density lipid cholesterol (HDL-C) and low-density lipid cholesterol (LDL-C) levels were divided into quartiles, and the women were categorized as having low (<25th percentile), referent (25 to <75th percentile) or high (>75th percentile) TC, TG, HDL-C and LDL-C values...
October 27, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27760764/bnp-troponin-i-and-ykl-40-as-screening-markers-in-extremely-preterm-infants-at-risk-for-pulmonary-hypertension-associated-with-bronchopulmonary-dysplasia
#11
Kai König, Katelyn J Guy, Claudia A Nold-Petry, Charles P Barfield, Geraldine Walsh, Sandra M Drew, Alex Veldman, Marcel F Nold, Dan M Casalaz
Bronchopulmonary dysplasia (BPD) is often complicated by pulmonary hypertension (PH). We investigated three biomarkers potentially suitable as screening markers for extremely preterm infants at risk of BPD-associated PH. In this prospective observational cohort study conducted in a tertiary neonatal intensive care unit, 83 preterm infants with BPD born <28-wk gestation and still inpatients at 36-wk corrected age received an echocardiogram and blood tests of B-type natriuretic peptide (BNP), troponin I, and YKL-40...
December 1, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27740976/patent-ductus-arteriosus-in-the-preterm-infant-diagnostic-and-treatment-options
#12
Stephanie Prescott, Jessica Keim-Malpass
BACKGROUND: The incidence of hemodynamically significant patent ductus arteriosus (hsPDA) increases with decreasing gestational age and is associated with many common morbidities of extreme prematurity. Controversies remain surrounding the definition of hsPDA, the population of infants requiring treatment, the appropriate timing and method of treatment, and the outcomes associated with PDA and its therapies. PURPOSE: This integrative literature review focuses on diagnostic and treatment recommendations derived from the highest levels of evidence...
October 8, 2016: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/27723726/renal-injury-in-neonates-use-of-omics-for-developing-precision-medicine-in-neonatology
#13
REVIEW
Mandar S Joshi, Kelsey A Montgomery, Peter J Giannone, John A Bauer, Mina H Hanna
Preterm birth is associated with increased risks of morbidity and mortality along with increased healthcare costs. Advances in medicine have enhanced survival for preterm infants but the overall incidence of major morbidities has changed very little. Abnormal renal development is an important consequence of premature birth. Acute kidney injury (AKI) in the neonatal period is multifactorial and may increase lifetime risk of chronic kidney disease.Traditional biomarkers in newborns suffer from considerable confounders, limiting their use for early identification of AKI...
November 9, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27697761/high-dose-micafungin-for-preterm-neonates-and-infants-with-invasive-and-central-nervous-system-candidiasis
#14
Cinzia Auriti, Marco Falcone, Maria Paola Ronchetti, Bianca Maria Goffredo, Sara Cairoli, Rosamaria Crisafulli, Fiammetta Piersigilli, Tiziana Corsetti, Andrea Dotta, Manjunath P Pai
High doses of micafungin are advocated in neonates with systemic candidiasis, but limited pharmacokinetic (PK) and safety data are available to support their use. Eighteen preterm neonates and infants with systemic candidiasis, three of whom had meningitis, were treated for at least 14 days with 8 to 15 mg/kg of body weight/day of intravenous micafungin. Plasma micafungin concentrations (four measurements for each patient) were determined after the third dose, and the cerebrospinal fluid (CSF) micafungin concentrations in three patients were also obtained...
December 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27697224/placental-histological-examination-and-the-relationship-with-oxidative-stress-in-preterm-infants
#15
Serafina Perrone, Maria Luisa Tataranno, Simona Negro, Mariangela Longini, Maria Stefania Toti, Maria Gabriella Alagna, Fabrizio Proietti, Francesco Bazzini, Paolo Toti, Giuseppe Buonocore
BACKGROUND: Prenatal conditions of enhanced oxidative stress (OS) linked to inflammation or hypoxia have been associated with impaired fetal growth and preterm delivery. Little is known regarding biomarkers of OS in the cord blood of preterm infants and placental histological patterns. OBJECTIVES: To test the hypothesis that placental lesions indicating chorioamnionitis (CA) or vascular underperfusion (VU) are associated with increased OS in the offspring. METHODS: 120 neonates born below 29(+6) weeks of gestational age (GA) were enrolled...
October 2016: Placenta
https://www.readbyqxmd.com/read/27666329/pilot-study-demonstrates-that-salivary-oxytocin-can-be-measured-unobtrusively-in-preterm-infants
#16
D R Kommers, Mac Broeren, P Andriessen, S G Oei, L Feijs, S Bambang Oetomo
AIM: This study assessed the feasibility and obtrusiveness of measuring salivary oxytocin in preterm infants receiving Kangaroo care, because this is a period of maximal bonding or co-regulation. We also analysed possible influential determinants, including maternal oxytocin. METHODS: The saliva of preterm infants and their mothers was collected prior to, and during, Kangaroo care using cotton swabs and pooled into vials until sufficient volumes were obtained to measure oxytocin levels using a radioimmunoassay...
January 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/27552216/determinants-of-carboxyhemoglobin-levels-and-relationship-with-sepsis-in-a-retrospective-cohort-of-preterm-neonates
#17
Andrew J McArdle, James Webbe, Kathleen Sim, Graham Parrish, Clive Hoggart, Yifei Wang, J Simon Kroll, Sunit Godambe, Aubrey J Cunnington
Carboxyhemoglobin levels in blood reflect endogenous carbon monoxide production and are often measured during routine blood gas analysis. Endogenous carbon monoxide production has been reported to be increased during sepsis, but carboxyhemoglobin levels have not been thoroughly evaluated as a biomarker of sepsis. We sought to determine whether carboxyhemoglobin levels were elevated during sepsis in a high risk population of premature neonates. We conducted a retrospective cohort study of 30 infants in two neonatal intensive care units using electronic medical and laboratory records...
2016: PloS One
https://www.readbyqxmd.com/read/27541865/role-of-selected-cytokines-in-the-etiopathogenesis-of-intraventricular-hemorrhage-in-preterm-newborns
#18
REVIEW
Dawid Szpecht, Katarzyna Wiak, Anna Braszak, Marta Szymankiewicz, Janusz Gadzinowski
Proinflammatory cytokines are essential mediators and indicators of an inflammatory process occurring in the body. Their physiological role is to stimulate the immune response, yet their excessive propagation and interaction with cells outside the immune system may be linked to the risk of organ damage. This is specifically important in the case of immature tissues of fetuses and prematurely born infants. Analysis of the concentrations of specific cytokines in different compartments makes it possible to assess the risk of premature birth, preterm rupture of the membranes, and to determine an existing intrauterine infection...
November 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27533763/inflammatory-and-oxidative-stress-airway-markers-in-premature-newborns-of-hypertensive-mothers
#19
R J Madoglio, L M S S Rugolo, C S Kurokawa, M P A Sá, J C Lyra, L C O Antunes
Although oxidative stress and inflammation are important mechanisms in the pathophysiology of preeclampsia and preterm diseases, their contribution to the respiratory prognosis of premature infants of hypertensive mothers is not known. Our objective was to determine the levels of oxidative stress and inflammation markers in the airways of premature infants born to hypertensive and normotensive mothers, in the first 72 h of life, and to investigate whether they are predictors of bronchopulmonary dysplasia (BPD)/death...
August 1, 2016: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/27502791/growth-metabolic-markers-and-cognition-in-8-year-old-children-born-prematurely-follow-up-of-a-randomized-controlled-trial-with-essential-fatty-acids
#20
Christine Henriksen, Astrid N Almaas, Ane C Westerberg, Christian A Drevon, Per O Iversen, Britt Nakstad
UNLABELLED: The study is a follow-up of a randomized, double-blinded, placebo-controlled trial of supplementation with docosahexaenoic acid (DHA) and arachidonic acid (AA) to 129 very low birth weight (VLBW; birth weight <1500 g) infants fed human milk. The main hypothesis was that supplementation would affect growth, metabolic markers, and cognitive function. The secondary aim was to describe predictors of metabolic markers and cognitive status at follow-up. Ninety-eight children met for 8-year follow-up with anthropometric measures, blood biomarkers, and cognitive testing...
September 2016: European Journal of Pediatrics
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