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Preterm birth biomarker

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https://www.readbyqxmd.com/read/28328980/early-biomarkers-of-brain-injury-and-cerebral-hypo-and-hyperoxia-in-the-safeboosc-ii-trial
#1
Anne M Plomgaard, Thomas Alderliesten, Topun Austin, Frank van Bel, Manon Benders, Olivier Claris, Eugene Dempsey, Monica Fumagalli, Christian Gluud, Cornelia Hagmann, Simon Hyttel-Sorensen, Petra Lemmers, Wim van Oeveren, Adelina Pellicer, Tue H Petersen, Gerhard Pichler, Per Winkel, Gorm Greisen
BACKGROUND: The randomized clinical trial, SafeBoosC II, examined the effect of monitoring of cerebral oxygenation by near-infrared spectroscopy combined with a guideline on treatment when cerebral oxygenation was out of the target range. Data on cerebral oxygenation was collected in both the intervention and the control group. The primary outcome was the reduction in the burden of cerebral hypo- and hyperoxia between the two groups. In this study we describe the associations between the burden of cerebral hypo- and hyperoxia, regardless of allocation to intervention or control group, and the biomarkers of brain injury from birth till term equivalent age that was collected as secondary and explorative outcomes in the SafeBoosC II trial...
2017: PloS One
https://www.readbyqxmd.com/read/28295227/mild-perinatal-adversities-moderate-the-association-between-maternal-harsh-parenting-and-hair-cortisol-evidence-for-differential-susceptibility
#2
Dafna A Windhorst, Ralph C A Rippe, Viara R Mileva-Seitz, Frank C Verhulst, Vincent W V Jaddoe, Gerard Noppe, Elisabeth F C van Rossum, Erica L T van den Akker, Henning Tiemeier, Marinus H van IJzendoorn, Marian J Bakermans-Kranenburg
It has been shown that following exposure to mild perinatal adversity, children have greater susceptibility to both the negative and positive aspects of their subsequent environment. In a large population-based cohort study (N = 1,776), we investigated whether mild perinatal adversity moderated the association between maternal harsh parenting and children's hair cortisol levels, a biomarker of chronic stress. Mild perinatal adversity was defined as late preterm birth (gestational age at birth of 34-37 weeks, 6 days) or small for gestational age (birth weight between the 2...
March 13, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28289719/type-i-interferons-regulate-susceptibility-to-inflammation-induced-preterm-birth
#3
Monica Cappelletti, Pietro Presicce, Matthew J Lawson, Vandana Chaturvedi, Traci E Stankiewicz, Simone Vanoni, Isaac T W Harley, Jaclyn W McAlees, Daniel A Giles, Maria E Moreno-Fernandez, Cesar M Rueda, Paranth Senthamaraikannan, Xiaofei Sun, Rebekah Karns, Kasper Hoebe, Edith M Janssen, Christopher L Karp, David A Hildeman, Simon P Hogan, Suhas G Kallapur, Claire A Chougnet, Sing Sing Way, Senad Divanovic
Preterm birth (PTB) is a leading worldwide cause of morbidity and mortality in infants. Maternal inflammation induced by microbial infection is a critical predisposing factor for PTB. However, biological processes associated with competency of pathogens, including viruses, to induce PTB or sensitize for secondary bacterial infection-driven PTB are unknown. We show that pathogen/pathogen-associated molecular pattern-driven activation of type I IFN/IFN receptor (IFNAR) was sufficient to prime for systemic and uterine proinflammatory chemokine and cytokine production and induction of PTB...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28278220/placental-hormone-profiles-as-predictors-of-preterm-birth-in-twin-pregnancy-a-prospective-cohort-study
#4
Hui Lim, Sioned Powell, Helen C Mcnamara, A Forbes Howie, Ann Doust, Maria E Bowman, Roger Smith, Jane E Norman, Sarah J Stock
OBJECTIVE: The objective of the study was to analyse placental hormone profiles in twin pregnancies to determine if they could be used to predict preterm birth. STUDY DESIGN: Progesterone, estradiol, estriol and corticotropin-releasing hormone were measured using competitive immunoassay and radioimmunoassay in serum and saliva samples of 98 women with twin pregnancies,at 3 or more gestational timepoints. Hormone profiles throughout gestation were compared between very preterm (<34 weeks; n = 8), preterm (<37 weeks; n = 40) and term (37+ weeks; n = 50) deliveries...
2017: PloS One
https://www.readbyqxmd.com/read/28274163/biomarkers-for-predicting-spontaneous-preterm-birth-an-umbrella-systematic-review
#5
Francesca Lucaroni, Laura Morciano, Giuseppe Rizzo, Francesco D' Antonio, Ersilia Buonuomo, Leonardo Palombi, Domenico Arduini
OBJECTIVE: To identify all systematic reviews investigating the role of maternal and fetal biomarkers for predicting spontaneous preterm birth (SPTB). METHODS: Medline and Web of Sciences databases were searched electronically. Studies exploring the association between maternal biomarkers and spontaneous delivery were considered suitable for inclusion. A synthesis of the systematic reviews was performed with the umbrella methodology. Statistical measures of association (Odd ratio, OR, relative risk, RR) and predictive accuracy (sensitivity, specificity, positive and negative likelihood ratios were used to synthesize results of the included studies...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28272749/integrated-electrokinetically-driven-microfluidic-devices-with-ph-mediated-solid-phase-extraction-coupled-to-microchip-electrophoresis-for-preterm-birth-biomarkers
#6
Mukul Sonker, Radim Knob, Vishal Sahore, Adam T Woolley
Integration in microfluidics is important for achieving automation. Sample preconcentration integrated with separation in a microfluidic setup can have a substantial impact on rapid analysis of low-abundance disease biomarkers. Here, we have developed a microfluidic device that uses pH-mediated solid phase extraction (SPE) for the enrichment and elution of preterm birth (PTB) biomarkers. Furthermore, this SPE module was integrated with microchip electrophoresis for combined enrichment and separation of multiple analytes, including a PTB peptide biomarker (P1)...
March 8, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28268486/identifying-stereotypic-evolving-micro-scale-seizures-sems-in-the-hypoxic-ischemic-eeg-of-the-pre-term-fetal-sheep-with-a-wavelet-type-ii-fuzzy-classifier
#7
Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth
Perinatal hypoxic-ischemic encephalopathy (HIE) around the time of birth due to lack of oxygen can lead to debilitating neurological conditions such as epilepsy and cerebral palsy. Experimental data have shown that brain injury evolves over time, but during the first 6-8 hours after HIE the brain has recovered oxidative metabolism in a latent phase, and brain injury is reversible. Treatments such as therapeutic cerebral hypothermia (brain cooling) are effective when started during the latent phase, and continued for several days...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226660/identifying-stereotypic-evolving-micro-scale-seizures-sems-in-the-hypoxic-ischemic-eeg-of-the-pre-term-fetal-sheep-with-a-wavelet-type-ii-fuzzy-classifier
#8
Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth, Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth, Charles P Unsworth, Laura Bennet, Hamid Abbasi, Alistair J Gunn
Perinatal hypoxic-ischemic encephalopathy (HIE) around the time of birth due to lack of oxygen can lead to debilitating neurological conditions such as epilepsy and cerebral palsy. Experimental data have shown that brain injury evolves over time, but during the first 6-8 hours after HIE the brain has recovered oxidative metabolism in a latent phase, and brain injury is reversible. Treatments such as therapeutic cerebral hypothermia (brain cooling) are effective when started during the latent phase, and continued for several days...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28198381/bio-functionalized-magnetic-nanoparticles-for-the-immunoassay-of-fetal-fibronectin-a-feasibility-study-for-the-prediction-of-preterm-birth
#9
Chian-Huey Wong, Chie-Pein Chen, Chia-Chen Chang, Chen-Yu Chen
Preterm birth is an important cause of perinatal morbidity and mortality. Various biomarkers in cervicovaginal secretions related to preterm birth have been investigated, of which foetal fibronectin (fFN) shows the greatest potential because of its high negative predictive value. The immunomagnetic reduction (IMR) assay has emerged as a novel quantitative method to detect biomarkers. In this prospective case-control study, we analysed 33 samples of cervicovaginal secretions from pregnant women between 22 and 34 weeks of gestation at high risk of preterm birth...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183829/retinal-structure-assessed-by-oct-as-a-biomarker-of-brain-development-in-children-born-small-for-gestational-age
#10
Victoria Pueyo, Teresa Pérez, Inmaculada González, Irene Altemir, Galadriel Gimenez, Esther Prieto, Cristina Paules, Daniel Oros, Javier Lopez-Pison, Nicolás Fayed, Gracián Garcia-Martí, Roberto Sanz-Requena, Miguel Angel Marin
PURPOSE: To identify differences in neuronal tissue from retinal and brain structures in children born small for gestational age (SGA) with no abnormality in neonatal brain ultrasonography and no previous neurological impairment, and to evaluate the relationship between retinal structure and brain changes in school-age children born SGA. METHODS: Two cohorts of children were recruited: 25 children born SGA and 25 children born with an appropriate birth weight according to gestational age...
February 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28170188/endothelial-progenitor-cells-as-prognostic-markers-of-preterm-birth-associated-complications
#11
Mariane Bertagnolli, Anne Monique Nuyt, Bernard Thébaud, Thuy Mai Luu
Preterm birth is associated with alteration of the vascular tree that can result in disease states such as bronchopulmonary dysplasia and retinopathy of prematurity during the neonatal period and emphysema and hypertension in adulthood. Studies have suggested a potential role for endothelial progenitor cells in the pathophysiology of prematurity-related complications involving blood vessels; however, this knowledge has never been synthesized. We conducted a systematic review of the published data to examine the characteristics of endothelial progenitor cells in relation to preterm birth in humans...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28165855/genome-wide-dna-methylation-associations-with-spontaneous-preterm-birth-in-us-blacks-findings-in-maternal-and-cord-blood-samples
#12
Xiumei Hong, Ben Sherwood, Christine Ladd-Acosta, Shouneng Peng, Hongkai Ji, Ke Hao, Irina Burd, Tami R Bartell, Guoying Wang, Hui-Ju Tsai, Xin Liu, Yuelong Ji, Anastacia Wahl, Deanna Caruso, Aviva Lee-Parritz, Barry Zuckerman, Xiaobin Wang
Preterm birth (PTB) affects one in six U.S. Black babies. Epigenetics is believed to play a role in PTB; however, only a limited number of epigenetic studies of PTB have been reported, most of which have focused on cord blood DNA methylation (DNAm) and/or were conducted in white populations. Here we conducted, by far, the largest epigenome-wide DNAm analysis in 300 Black women who delivered early spontaneous preterm (sPTB, n = 150) or full-term babies (n = 150) and replicated the findings in an independent set of Black mother-newborn pairs from the Boston Birth Cohort...
February 6, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28159311/intestinal-barrier-maturation-in-very-low-birthweight-infants-relationship-to-feeding-and-antibiotic-exposure
#13
Bushra Saleem, Adora C Okogbule-Wonodi, Alessio Fasano, Laurence S Magder, Jacques Ravel, Shiv Kapoor, Rose M Viscardi
OBJECTIVE: To test the hypothesis that feeding and antibiotic exposures affect intestinal barrier maturation in preterm infants, we serially measured intestinal permeability (IP) biomarkers in infants <33 weeks gestation (gestational age [GA]) during the first 2 weeks of life. STUDY DESIGN: Eligible infants <33 weeks GA were enrolled within 4 days of birth in a prospective study of IP biomarkers (NCT01756040). Study participants received the nonmetabolized sugars lactulose/rhamnose enterally on study days 1, 8, and 15 and lactulose/rhamnose were measured in urine by high-performance liquid chromatography...
January 31, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28157383/biomarkers-of-oxidative-stress-in-pregnancy-complications
#14
James Sm Cuffe, Ziheng Calvin Xu, Anthony V Perkins
Pregnancy complications including pre-eclampsia, gestational-diabetes mellitus, preterm birth and intrauterine growth restriction can cause acute and chronic health problems for the mother and lead to fetal loss or dysregulation of infant physiology. The human placenta is susceptible to oxidative stress and oxidative damage in early gestation contributes to the onset of these conditions later in pregnancy. Current methods of predicting pregnancy complications are limited and although a large number of factors are associated with disease progression, few biomarkers have been used to aid in disease diagnosis early in gestation...
February 3, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28132814/deficits-in-top-down-sensory-prediction-in-infants-at-risk-due-to-premature-birth
#15
Lauren L Emberson, Alex M Boldin, Julie E Riccio, Ronnie Guillet, Richard N Aslin
A prominent theoretical view is that the brain is inherently predictive [1, 2] and that prediction helps drive the engine of development [3, 4]. Although infants exhibit neural signatures of top-down sensory prediction [5, 6], in order to establish that prediction supports development, it must be established that deficits in early prediction abilities alter trajectories. We investigated prediction in infants born prematurely, a leading cause of neuro-cognitive impairment worldwide [7]. Prematurity, independent of medical complications, leads to developmental disturbances [8-12] and a broad range of developmental delays [13-17]...
February 6, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28120286/adverse-perinatal-outcomes-and-postpartum-multi-systemic-dysregulation-adding-vitamin-d-deficiency-to-the-allostatic-load-index
#16
Eynav Elgavish Accortt, James Mirocha, Christine Dunkel Schetter, Calvin J Hobel
Background Allostatic load (AL) is an index of multi-system physiological "wear-and-tear," operationalizing emergent chronic disease risk and predicting morbidity and mortality. AL has been proposed as an organizing framework for studying pregnancy outcomes and additional AL biomarkers for the study of maternal health would be valuable. Objectives To test whether adverse perinatal outcomes are associated with postpartum AL and if including vitamin D deficiency (serum 25(OH)D < 20 ng/ml) as an additional marker of postpartum AL increases the association...
January 24, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28117143/review-placental-derived-biomarkers-of-pregnancy-disorders
#17
REVIEW
James S M Cuffe, Olivia Holland, Carlos Salomon, Gregory E Rice, Anthony V Perkins
Pregnancy is one of the greatest physiological challenges that a women can experience. The physiological adaptations that accompany pregnancy may increase the risk of developing a number of disorders that can lead to both acute and chronic physiological outcomes. In addition, fetal development may be impaired and, if the fetus survives, the child may be at an increased risk of disease throughout life. Pregnancy disorders are poorly predicted by traditional risk factors and maternal history alone. The identification of biomarkers that can predict incidence and severity of disease would allow for improved and targeted prophylactic therapies to prevent adverse maternal and fetal outcomes...
January 16, 2017: Placenta
https://www.readbyqxmd.com/read/28110600/an-examination-of-the-factors-affecting-intestinal-wall-integrity-in-newborns-at-birth
#18
Soyhan Bagci, Daniel Mensinga, David Katzer, Waltraut M Merz, Heiko Reutter, Andreas Müller
BACKGROUND: An understanding of the factors that influence intestinal wall integrity during the transition from fetal to neonatal life is important to elucidate and minimize potential contributions to the development of intestinal pathologies in vulnerable newborns. OBJECTIVE: To assess the factors affecting intestinal wall integrity of late preterm and term newborns at birth. METHODS: The concentrations of serum intestinal fatty acid-binding protein (I-FABP) as biomarker of intestinal wall injury, superoxide dismutase (SOD), and glutathione peroxidase (Gpx) as parameters of oxidative stress, and blood gas analyses were measured in the arterial cord blood of 80 newborns, delivered by spontaneous vaginal delivery (labor group) or elective cesarean delivery (non-labor group)...
February 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28099428/biomarkers-of-adiposity-are-elevated-in-preterm-very-low-birth-weight-infants-at-1-2-and-3-years-of-age
#19
Andrea F Duncan, Joshua A Frankfurt, Roy J Heyne, Charles R Rosenfeld
BACKGROUND: Preterm, very-low-birth-weight (PT-VLBW) neonates are at-risk for metabolic syndrome later in life. At 1-3yrs, they exhibit excessive weight-for-length z-scores (Wt-LZ) and elevated systolic blood pressures (SBP). Serum adipokines are biomarkers of adiposity, but expression in PT-VLBW infants is unclear. We examined the correlation between serum adipokine levels, anthropometric measures and SBP in PT-VLBW neonates at follow-up. METHODS: This was a cross-sectional cohort study of PT-VLBW infants at 1, 2 and 3yrs of age (40/cohort)...
January 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28073296/the-microbiome-and-complement-activation
#20
Alexis B Dunn, Anne L Dunlop, Carol J Hogue, Andrew Miller, Elizabeth J Corwin
Preterm birth (PTB, <37 completed weeks' gestation) is one of the leading obstetrical problems in the United States, affecting approximately one of every nine births. Even more concerning are the persistent racial disparities in PTB, with particularly high rates among African Americans. There are several recognized pathophysiologic pathways to PTB, including infection and/or exaggerated systemic or local inflammation. Intrauterine infection is a causal factor linked to PTB thought to result most commonly from inflammatory processes triggered by microbial invasion of bacteria ascending from the vaginal microbiome...
January 1, 2017: Biological Research for Nursing
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