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Biomarker preterm infants

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https://www.readbyqxmd.com/read/30219333/can-hair-steroids-predict-pregnancy-longevity
#1
Anat Schonblum, Liat Arnon, Eyal Ravid, Liat Salzer, Eran Hadar, Israel Meizner, Arnon Wiznitzer, Aron Weller, Lee Koren
Maintaining pregnancy to term is important as preterm delivery is a risk factor for impaired infant development, which may have negative long-term consequences. Therefore, developing biomarkers that can predict pregnancy longevity during early gestation is essential for the prevention of preterm birth. Here we explored whether maternal hair testosterone and cortisol, representing the pre-conception and first trimester periods respectively, may be used to predict pregnancy longevity. We recruited 125 pregnant women that contributed hair samples and answered a personal information questionnaire that included pre-conception smoking...
September 12, 2018: Reproductive Biology
https://www.readbyqxmd.com/read/30208643/fecal-volatile-organic-compounds-in-preterm-infants-are-influenced-by-enteral-feeding-composition
#2
Sofia El Manouni El Hassani, Hendrik J Niemarkt, Hager Said, Daniel J C Berkhout, Anton H van Kaam, Richard A van Lingen, Marc A Benninga, Nanne K H de Boer, Tim G J de Meij
Fecal volatile organic compound (VOC) analysis has shown great potential as a noninvasive diagnostic biomarker for a variety of diseases. Before clinical implementation, the factors influencing the outcome of VOC analysis need to be assessed. Recent studies found that the sampling conditions can influence the outcome of VOC analysis. However, the dietary influences remains unknown, especially in (preterm) infants. Therefore, we assessed the effects of feeding composition on fecal VOC patterns of preterm infants (born at <30 weeks gestation)...
September 11, 2018: Sensors
https://www.readbyqxmd.com/read/30172660/necrotizing-enterocolitis-the-intestinal-microbiome-metabolome-and-inflammatory-mediators
#3
REVIEW
Josef Neu, Mohan Pammi
Necrotizing enterocolitis (NEC) is a disease of preterm infants and associated with significant mortality and morbidity. Although the pathogenesis of NEC is not clear, microbial dysbiosis, with a bloom of the phylum Proteobacteria, has been reported. Antibiotics and the use of H2 blockers, which affect the gut microbiome, are associated with increased incidence of NEC. In association with dysbiosis, inflammatory processes are upregulated with increased Toll-like receptor signaling, leading to translocation of nuclear factor kappa-β, a transcription factor that induces transcription of various pro-inflammatory cytokines and chemokines...
August 17, 2018: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/30170570/post-hemorrhagic-hydrocephalus-and-neurodevelopmental-outcomes-in-a-context-of-neonatal-intraventricular-hemorrhage-an-institutional-experience-in-122-preterm-children
#4
Vianney Gilard, Alexandra Chadie, François-Xavier Ferracci, Marie Brasseur-Daudruy, François Proust, Stéphane Marret, Sophie Curey
BACKGROUND: Intraventricular hemorrhage (IVH) is a frequent complication in extreme and very preterm births. Despite a high risk of death and impaired neurodevelopment, the precise prognosis of infants with IVH remains unclear. The objective of this study was to evaluate the rate and predictive factors of evolution to post hemorrhagic hydrocephalus (PHH) requiring a shunt, in newborns with IVH and to report their neurodevelopmental outcomes at 2 years of age. METHODS: Among all preterm newborns admitted to the department of neonatalogy at Rouen University Hospital, France between January 2000 and December 2013, 122 had an IVH and were included in the study...
August 31, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/30124868/anogenital-distance-is-determined-during-early-gestation-in-humans
#5
Viral G Jain, Vaibhav Goyal, Vikas Chowdhary, Namita Swarup, Ravinder J Singh, Arbinder Singal, Prem Shekhawat
STUDY QUESTION: Does cord blood androgen level obtained at birth affect the AGD in human newborns? SUMMARY ANSWER: In human newborns, though males have a significantly longer AGD compared to females (as early as 22 weeks of gestation) the AGD is not affected by androgen levels at birth in both the sexes. WHAT IS KNOWN ALREADY: Animal studies have reported a critical time period in early fetal life, termed the masculinization programming window (MPW) during which AGD is fixed by in utero androgen action and is unaffected by testosterone levels later during gestation...
September 1, 2018: Human Reproduction
https://www.readbyqxmd.com/read/30123976/xenon-as-an-adjuvant-to-therapeutic-hypothermia-in-near-term-and-term-newborns-with-hypoxic-ischaemic-encephalopathy
#6
REVIEW
Christoph M Rüegger, Peter G Davis, Jeanie L Cheong
BACKGROUND: Hypoxic-ischaemic encephalopathy (HIE) is a serious birth complication affecting term and late preterm newborns. Although therapeutic hypothermia (cooling) has been shown to be an effective therapy for neonatal HIE, many cooled infants have poor long-term neurodevelopmental outcomes. In animal models of neonatal encephalopathy, inhaled xenon combined with cooling has been shown to offer better neuroprotection than cooling alone. OBJECTIVES: To determine the effects of xenon as an adjuvant to therapeutic hypothermia on mortality and neurodevelopmental morbidity, and to ascertain clinically important side effects of xenon plus therapeutic hypothermia in newborn infants with HIE...
August 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/30113227/early-airway-microbial-metagenomic-and-metabolomic-signatures-are-associated-with-development-of-severe-bronchopulmonary-dysplasia
#7
Charitharth Vivek Lal, Jegen Kandasamy, Kalsang Dolma, Manimaran Ramani, Ranjit Kumar, Landon Wilson, Zubair H Aghai, Stephen Barnes, J Edwin Blalock, Amit Gaggar, Vineet Bhandari, Namasivayam Ambalavanan
The pathogenesis of bronchopulmonary dysplasia (BPD) is not well understood. We previously identified differences in the airway microbiome at birth between preterm infants who were BPD-predisposed versus those who were BPD-resistant. In this study, we attempted to identify mechanisms by which the airway microbiome could modify the risk for BPD. We used a software-based method to predict the metagenome of the tracheal aspirate (TA) microbiome from 16s rRNA sequencing data in preterm infants and to identify functional ortholog genes that were differentially abundant in BPD-predisposed and BPD-resistant infants...
August 16, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/30094238/precision-medicine-for-neonatal-sepsis
#8
REVIEW
Sherrianne Ng, Tobias Strunk, Pingping Jiang, Tik Muk, Per T Sangild, Andrew Currie
Neonatal sepsis remains a significant cause of morbidity and mortality especially in the preterm infant population. The ability to promptly and accurately diagnose neonatal sepsis based on clinical evaluation and laboratory blood tests remains challenging. Advances in high-throughput molecular technologies have increased investigations into the utility of transcriptomic, proteomic and metabolomic approaches as diagnostic tools for neonatal sepsis. A systems-level understanding of neonatal sepsis, obtained by using omics-based technologies (at the transcriptome, proteome or metabolome level), may lead to new diagnostic tools for neonatal sepsis...
2018: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/30082194/an-update-on-biomarkers-of-necrotizing-enterocolitis
#9
REVIEW
Pak Cheung Ng
Necrotizing enterocolitis (NEC) remains a devastating surgical emergency with high morbidity and mortality in preterm infants. Slow but steady progress has been made in past years searching for novel biomarkers of NEC, for both surveillance and diagnostic purposes. This review primarily focuses on recent discoveries: clinical applications of different categories of biomarkers for surveillance, early diagnosis, and predicting severity and prognosis; and understanding of pathophysiological mechanisms as a basis to rationalize the search for 'gut-associated specific biomarkers' of NEC...
August 1, 2018: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/30029694/fatal-pitfalls-in-newborn-screening-for-mitochondrial-trifunctional-protein-mtp-long-chain-3-hydroxyacyl-coa-dehydrogenase-lchad-deficiency
#10
Amelie S Lotz-Havla, Wulf Röschinger, Katharina Schiergens, Katharina Singer, Daniela Karall, Vassiliki Konstantopoulou, Saskia B Wortmann, Esther M Maier
BACKGROUND: Mitochondrial trifunctional protein (MTP) and long-chain 3-hydroxyacyl-CoA dehydrogenase (LCHAD) deficiency are long-chain fatty acid oxidation disorders with particularly high morbidity and mortality. Outcome can be favorable if diagnosed in time, prompting the implementation in newborn screening programs. Sporadic cases missed by the initial screening sample have been reported. However, little is known on pitfalls during confirmatory testing resulting in fatal misconception of the diagnosis...
July 20, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29992470/altered-functional-network-connectivity-in-preterm-infants-antecedents-of-cognitive-and-motor-impairments
#11
Elveda Gozdas, Nehal A Parikh, Stephanie L Merhar, Jean A Tkach, Lili He, Scott K Holland
Very preterm infants (≤ 31 weeks gestational age) are at high risk for brain injury and delayed development. Applying functional connectivity and graph theory methods to resting state MRI data (fcMRI), we tested the hypothesis that preterm infants would demonstrate alterations in connectivity measures both globally and in specific networks related to motor, language and cognitive function, even when there is no anatomical imaging evidence of injury. Fifty-one healthy full-term controls and 24 very preterm infants without significant neonatal brain injury, were evaluated at term-equivalent age with fcMRI...
July 10, 2018: Brain Structure & Function
https://www.readbyqxmd.com/read/29984463/clinical-biomarkers-for-assessing-neurodevelopmental-outcome-of-infants-born-preterm
#12
Max J Kurz, Sandra Willett
No abstract text is available yet for this article.
July 8, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29977013/ntprobnp-as-a-surrogate-biomarker-for-early-screening-of-pulmonary-hypertension-in-preterm-infants-with-bronchopulmonary-dysplasia
#13
Soham Dasgupta, Ashraf M Aly, Michael H Malloy, Anthony O Okorodudu, Sunil K Jain
OBJECTIVE: Pulmonary hypertension (PH) is a known complication of bronchopulmonary dysplasia (BPD). This study aimed to determine the utility of serial N-Terminal pro-Brain Natriuretic Peptide (NTproBNP) levels in the screening of BPD associated PH (BPD-PH) in preterm infants. STUDY DESIGN: Infants with birth weight <1500 g and <30 week corrected gestational age (CGA) were followed with serial NTproBNP levels and echocardiograms (ECHO). They were divided into control, BPD and BPD-PH groups...
September 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29959046/age-specific-gray-and-white-matter-dti-atlas-for-human-brain-at-33-36-and-39-postmenstrual-weeks
#14
Lei Feng, Hang Li, Kenichi Oishi, Virendra Mishra, Limei Song, Qinmu Peng, Minhui Ouyang, Jiaojian Wang, Michelle Slinger, Tina Jeon, Lizette Lee, Roy Heyne, Lina Chalak, Yun Peng, Shuwei Liu, Hao Huang
During the 3rd trimester, dramatic structural changes take place in the human brain, underlying the neural circuit formation. The survival rate of premature infants has increased significantly in recent years. The large morphological differences of the preterm brain at 33 or 36 postmenstrual weeks (PMW) from the brain at 40PMW (full term) make it necessary to establish age-specific atlases for preterm brains. In this study, with high quality (1.5 × 1.5 × 1.6 mm3 imaging resolution) diffusion tensor imaging (DTI) data obtained from 84 healthy preterm and term-born neonates, we established age-specific preterm and term-born brain templates and atlases at 33, 36 and 39PMW...
June 26, 2018: NeuroImage
https://www.readbyqxmd.com/read/29790673/n-terminal-probrain-natriuretic-peptide-as-a-biomarker-of-moderate-to-severe-bronchopulmonary-dysplasia-in-preterm-infants-a-prospective-observational-study
#15
Silvia Rodríguez-Blanco, Ignacio Oulego-Erroz, Paula Alonso-Quintela, Sandra Terroba-Seara, Aquilina Jiménez-González, Maite Palau-Benavides
OBJECTIVE: N-terminal-probrain natriuretic peptide (NT-proBNP) is a marker of hemodynamically significant patent ductus arteriosus (HsPDA) in preterm infants. In this study, we assessed whether NT-proBNP levels could predict the risk of moderate to severe bronchopulmonary dysplasia (BPD) and/or death. METHODS: This was an observational prospective study of preterm infants with GA ≤32 weeks. Infants who died within the first 48 h or who had major congenital malformations or incomplete information were excluded...
May 23, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29742943/comparison-between-presepsin-and-procalcitonin-in-early-diagnosis-of-neonatal-sepsis
#16
Agustin Iskandar, Maimun Z Arthamin, Kristin Indriana, Muhammad Anshory, Mina Hur, Salvatore Di Somma
BACKGROUND: Neonatal sepsis remains worldwide one of the leading causes of morbidity and mortality in both term and preterm infants. Lower mortality rates are related to timely diagnostic evaluation and prompt initiation of empiric antibiotic therapy. Blood culture, as gold standard examination for sepsis, has several limitations for early diagnosis, so that sepsis biomarkers could play an important role in this regard. This study was aimed to compare the value of the two biomarkers presepsin and procalcitonin in early diagnosis of neonatal sepsis...
May 27, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29724000/oxygen-induced-retinopathy-from-recurrent-intermittent-hypoxia-is-not-dependent-on-resolution-with-room-air-or-oxygen-in-neonatal-rats
#17
Kay D Beharry, Charles L Cai, Jacqueline Skelton, Faisal Siddiqui, Christina D'Agrosa, Johanna Calo, Gloria B Valencia, Jacob V Aranda
Preterm infants often experience intermittent hypoxia (IH) with resolution in room air (RA) or hyperoxia (Hx) between events. Hypoxia is a major inducer of vascular endothelial growth factor, which plays a key role in normal and aberrant retinal angiogenesis. This study tested the hypothesis that neonatal IH which resolved with RA is less injurious to the immature retina than IH resolved by Hx between events. Newborn rats were exposed to: (1) Hx (50% O₂) with brief hypoxia (12% O₂); (2) RA with 12% O₂; (3) Hx with RA; (4) Hx only; or (5) RA only, from P0 to P14...
May 1, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29689740/pilot-feasibility-study-to-detect-mesenchymal-stem-cell-biomarkers-of-bronchopulmonary-dysplasia-in-the-tracheal-aspirate-fluid-of-preterm-infants
#18
R G LaGrandeur, M Singhal, F Bany-Mohammed, C Uy, R Koeppel, F Zaldivar, F Haddad, A Nalbandian, P Donovan, D M Cooper, M Aslam
OBJECTIVE: This study aimed to detect novel mesenchymal stem cell peptides/biomarkers of bronchopulmonary dysplasia (BPD) in the tracheal aspirate fluid (TAF) of preterm infants. STUDY DESIGN: Participants included infants less than 32 weeks' gestational age or birth weight under 1500 grams who required endotracheal intubation and mechanical ventilation within first 24 hours of life. TAF sample collection was performed at the time of the first clinically indicated routine suctioning...
2018: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/29687638/tracheal-aspirate-vegf-and-sphingolipid-metabolites-in-the-preterm-infant-with-later-development-of-bronchopulmonary-dysplasia
#19
Karen D Hendricks-Muñoz, Jie Xu, Judith A Voynow
OBJECTIVE: Vascular endothelial growth factor (VEGF) and sphingolipid metabolites, sphingosine 1-phosphate (S1P), and ceramides are important to lung development and repair. We hypothesized specific sphingolipid and VEGF alterations would be associated with BPD development and aimed to investigate the early tracheal aspirate (TA) VEGF and S1P relationship with later diagnosis of preterm infant bronchopulmonary dysplasia, BPD. DESIGN: TA VEGF and lipidomics were measured in TA from Infants <32 weeks gestational age at birth with and without later BPD...
April 23, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29683528/microchip-electrophoresis-separation-of-a-panel-of-preterm-birth-biomarkers
#20
Anna V Nielsen, Jacob B Nielsen, Mukul Sonker, Radim Knob, Vishal Sahore, Adam T Woolley
Preterm birth (PTB) is responsible for over one million infant deaths annually worldwide. Often, the first and only indication of PTB risk is the onset of early labor. Thus, there is an urgent need for an early PTB risk diagnostic that is inexpensive, reliable, and robust. Here, we describe the development of a microchip electrophoresis (μCE) method for separating a mixture of six PTB protein and peptide biomarkers present in maternal blood serum. μCE devices were photografted with a poly(ethylene glycol) diacrylate surface coating to regulate EOF and reduce nonspecific analyte adsorption...
September 2018: Electrophoresis
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