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Preterm birth biomarker

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https://www.readbyqxmd.com/read/27881405/effectiveness-of-individualised-lung-recruitment-strategies-at-birth-an-experimental-study-in-preterm-lambs
#1
David G Tingay, Anushi E Rajapaksa, Emanuela Zannin, Prue M Pereira-Fantini, Raffaele Dellacà, Elizabeth Perkins, Cornelis Elroy E Zonneveld, Andy Adler, Don Black, Inez Frerichs, Anna Lavizzari, Magdy Sourial, Bartłomiej Grychtol, Fabio Mosca, Peter G Davis
Respiratory transition at birth involves rapidly clearing fetal lung liquid and preventing efflux back into the lung whilst aeration is established. We have developed a sustained inflation (SIOPT) individualized to volume-response and a dynamic tidal positive end-expiratory pressure (open lung volume, OLV) strategy that both enhance this process. We aimed to compare the effect of each with a group managed with PEEP of 8 cmH2O and no recruitment manoeuvre (No-RM), on gas exchange, lung mechanics, spatiotemporal aeration and lung injury in 127±1d preterm lambs...
November 23, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27871275/rationale-and-design-of-support-a-multi-centre-randomised-controlled-trial-to-compare-three-treatments-cervical-cerclage-cervical-pessary-and-vaginal-progesterone-for-the-prevention-of-preterm-birth-in-women-who-develop-a-short-cervix
#2
Natasha L Hezelgrave, Helena A Watson, Alexandra Ridout, Falak Diab, Paul T Seed, Evonne Chin-Smith, Rachel M Tribe, Andrew H Shennan
BACKGROUND: Clinically, once a woman has been identified as being at risk of spontaneous preterm birth (sPTB) due to a short cervical length, a decision regarding prophylactic treatment must be made. Three interventions have the potential to improve outcomes: cervical cerclage (stitch), vaginal progesterone and cervical pessary. Each has been shown to have similar benefit in reduction of sPTB, but there have been no randomised control trials (RCTs) to compare them. METHODS: This open label multi-centre UK RCT trial, will evaluate whether the three interventions are equally efficacious to prevent premature birth in women who develop a short cervix (<25 mm on transvaginal ultrasound)...
November 21, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27787507/the-associations-between-early-pregnancy-lipid-profiles-and-pregnancy-outcomes
#3
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
#4
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 weeks gestation and still inpatients at 36 weeks corrected age received an echocardiogram and blood tests of B-type natriuretic peptide (BNP), troponin I, and YKL-40...
October 19, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27723726/renal-injury-in-neonates-use-of-omics-for-developing-precision-medicine-in-neonatology
#5
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/27711965/measuring-circulating-placental-rnas-to-non-invasively-assess-the-placental-transcriptome-and-to-predict-pregnancy-complications
#6
REVIEW
Clare L Whitehead, Susan P Walker, Stephen Tong
Circulating nucleic acids have revolutionized prenatal diagnosis in the last decade, allowing non-invasive screening for single gene or chromosomal defects using a single sample of maternal blood. In addition to DNAs, RNAs from the placenta are released into the maternal blood from early in pregnancy and may reflect changes in gene expression occurring within the placenta. Measuring circulating RNA may therefore provide insights into the placental transcriptome without the need for invasive testing. Combined with advances in next-generation sequencing and molecular analyses, it may be possible to measure circulating RNA to improve our understanding of placental pathology and develop novel non-invasive biomarkers for pregnancy complications and monitoring high-risk pregnancies...
November 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27684473/alarmin-high-mobility-group-box-1-in-maternal-serum-as-a-potential-biomarker-of-chorioamnionitis-associated-preterm-birth
#7
Xiao-Yuan Qiu, Lu Sun, Xue-Ling Han, Ying Chang, Lan Cheng, Li-Rong Yin
Chorioamnionitis is associated with an increased risk of spontaneous preterm birth. The aim of this study was to investigate the serum levels of high mobility group box-1 (HMGB1) in pregnancies with histological chorioamnionitis (HCA)-associated preterm labor (PTL) with intact membranes or preterm premature rupture of membranes (PPROM), and to access the role of serum HMGB1 in HCA and HCA-associated PTL. A total of 190 pregnant women were enrolled in this study: PLT patients with (n = 28) or without HCA (n = 36), PPROM patients with (n = 26) or without HCA (n = 65), and non-HCA PTL controls (n = 35)...
August 12, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27671514/maternal-serum-and-cervicovaginal-il-6-in-patients-with-symptoms-of-preterm-labor
#8
Parisa Yavari Kia, Behzad Baradaran, Mahnaz Shahnazi, Mohammad Asghari Jafarabadi, Vahid Khaze, Shakiba Pourasad Shahrak
BACKGROUND: Preterm birth is a common problem in obstetrics. OBJECTIVE: To measure maternal serum interlukin-6 in mothers with preterm uterine contractions and compare it with cervicovaginal interlukin-6 in the same women. METHODS: In this cross-sectional study, we measured interlukin-6 in the sera and cervicovaginal fluids of 86 women with preterm uterine contractions. All participants had an intact membrane. Interlukin-6 was measured by using ELISA method...
September 2016: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/27636999/toll-like-4-receptor-nf%C3%AE%C2%BAb-inflammatory-mir-146a-pathway-contributes-to-the-art-correlated-preterm-birth-outcome
#9
Xinqi Zhong, Yi-Zhou Jiang, Peiwen Liu, Wenzhi He, Zhongtang Xiong, Weijie Chang, Jiandong Zhu, Qiliang Cui
Assisted reproductive technology (ART) is widely used for the women with infertility conditions to achieve pregnancy. However, the adverse effects of ART may lead to poor perinatal and neonatal outcomes, e.g., preterm birth and low body weight. In this study, we investigated the inflammatory molecular factors and microRNA that might be involved in ART related preterm birth. We found the elevation of Toll-like 4 receptor (TLR4), activation of NFκB pathway and down-regulation of microRNA-146a (miR-146a), a negative regulator of NFκB, in the placenta of preterm birth and ART, indicating preterm birth and ART were associated with inflammation signaling activation...
September 12, 2016: Oncotarget
https://www.readbyqxmd.com/read/27634166/motor-trajectories-from-birth-to-5-years-of-children-born-at-less-than-30-weeks-gestation-early-predictors-and-functional-implications-protocol-for-a-prospective-cohort-study
#10
Alicia J Spittle, Jennifer L McGinley, Deanne Thompson, Ross Clark, Tara L FitzGerald, Benjamin F Mentiplay, Katherine J Lee, Joy E Olsen, Alice Burnett, Karli Treyvaud, Elisha Josev, Bonnie Alexander, Claire E Kelly, Lex W Doyle, Peter J Anderson, Jeanie Ly Cheong
INTRODUCTION: Motor impairments are one of the most frequently reported adverse neurodevelopmental consequences in children born < 30 weeks' gestation. Up to 15% of children born at < 30 weeks have cerebral palsy and an additional 50% have mild to severe motor impairment at school age. The first 5 years of life are critical for the development of fundamental motor skills. These skills form the basis for more complex skills that are required to competently and confidently participate in schooling, sporting and recreational activities...
October 2016: Journal of Physiotherapy
https://www.readbyqxmd.com/read/27552216/determinants-of-carboxyhemoglobin-levels-and-relationship-with-sepsis-in-a-retrospective-cohort-of-preterm-neonates
#11
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
#12
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
#13
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/27514075/biomarkers-of-spontaneous-preterm-birth-a-systematic-review-of-studies-using-multiplex-analysis
#14
Jossimara Polettini, Teresa Cobo, Marian Kacerovsky, Angela E Vinturache, Piotr Laudanski, Myrthe J C S Peelen, Hanns Helmer, Ronald F Lamont, Jun Takeda, Jerome Lapointe, Maria Regina Torloni, Nanbert Zhong, Ramkumar Menon
OBJECTIVE: Despite decades of research on risk indicators of spontaneous preterm birth (PTB), reliable biomarkers are still not available to screen or diagnose high-risk pregnancies. Several biomarkers in maternal and fetal compartments have been mechanistically linked to PTB, but none of them are reliable predictors of pregnancy outcome. This systematic review was conducted to synthesize the knowledge on PTB biomarkers identified using multiplex analysis. MATERIALS AND METHODS: Three electronic databases (PubMed, EMBASE and Web of Science) were searched for studies in any language reporting the use of multiplex assays for maternal biomarkers associated with PTB published from January 2005 to March 2014...
August 11, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27509017/quantitative-analysis-of-the-cervical-texture-by-ultrasound-and-correlation-with-gestational-age
#15
Núria Baños, Alvaro Perez-Moreno, Federico Migliorelli, Laura Triginer, Teresa Cobo, Elisenda Bonet-Carne, Eduard Gratacos, Montse Palacio
OBJECTIVES: Quantitative texture analysis has been proposed to extract robust features from the ultrasound image to detect subtle changes in the textures of the images. The aim of this study was to evaluate the feasibility of quantitative cervical texture analysis to assess cervical tissue changes throughout pregnancy. METHODS: This was a cross-sectional study including singleton pregnancies between 20.0 and 41.6 weeks of gestation from women who delivered at term...
August 11, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27503110/use-of-metabolomics-for-the-identification-and-validation-of-clinical-biomarkers-for-preterm-birth-preterm-samba
#16
Jose G Cecatti, Renato T Souza, Karolina Sulek, Maria L Costa, Louise C Kenny, Lesley M McCowan, Rodolfo C Pacagnella, Silas G Villas-Boas, Jussara Mayrink, Renato Passini, Kleber G Franchini, Philip N Baker
BACKGROUND: Spontaneous preterm birth is a complex syndrome with multiple pathways interactions determining its occurrence, including genetic, immunological, physiologic, biochemical and environmental factors. Despite great worldwide efforts in preterm birth prevention, there are no recent effective therapeutic strategies able to decrease spontaneous preterm birth rates or their consequent neonatal morbidity/mortality. The Preterm SAMBA study will associate metabolomics technologies to identify clinical and metabolite predictors for preterm birth...
August 8, 2016: BMC Pregnancy and Childbirth
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
#17
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
https://www.readbyqxmd.com/read/27494609/early-or-mid-trimester-amniocentesis-biomarkers-for-predicting-preterm-delivery-a-meta-analysis
#18
Yinglin Liu, Yukun Liu, Rui Zhang, Liqiong Zhu, Ziya Feng
OBJECTIVE: To determine the value of early- or mid-trimester amniotic fluid levels of interleukin-6 (IL-6), matrix metalloproteinase-8 (MMP-8), and glucose for predicting preterm delivery. METHODS: Randomized controlled trials and two-arm prospective, retrospective, cohorts, and case-controlled studies in which patients received early- or mid-trimester amniocentesis for karyotyping, and biomarker testing of the amniotic fluid was performed and delivery data were available were included in the analysis...
August 5, 2016: Annals of Medicine
https://www.readbyqxmd.com/read/27476489/inflammatory-and-oxidative-stress-markers-associated-with-decreased-cervical-length-in-pregnancy
#19
Kartik K Venkatesh, David E Cantonwine, Kelly Ferguson, Melanie Arjona, John D Meeker, Thomas F McElrath
PROBLEM: We assess whether inflammatory and oxidative stress markers early in pregnancy are associated with decreasing cervical length in the second trimester. METHOD OF STUDY: This is a secondary analysis of a nested case-control study of preterm birth conducted at a tertiary care center from 2006 to 2008. Plasma inflammatory markers included the following: interleukin-6 (IL-6), interleukin-10 (IL-10), interleukin-1 beta (IL-1β), tumor necrosis factor alpha (TNF-α), and C-reactive protein (CRP); and urine oxidative stress markers included the following: 8-hydroxydeoxyguanosine (8-OHdG) and 8-isoprostane, measured at two study visits (median 10 and 18 weeks of gestation)...
November 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27465070/endothelial-progenitor-cells-as-prognostic-markers-of-preterm-birth-associated-complications
#20
Mariane Bertagnolli, Anne Monique Nuyt, Bernard Thébaud, Thuy Mai Luu
: SummaryPreterm 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...
July 27, 2016: Stem Cells Translational Medicine
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