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Preterm birth biomarker

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 incidences of major morbidities have 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...
October 10, 2016: Pediatric Research
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 deoxyribonucleic acids (DNA), ribonucleic acids (RNA) 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...
October 6, 2016: Prenatal Diagnosis
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
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
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
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
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
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...
August 19, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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
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
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
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
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
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
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
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
William E Ackerman, Irina A Buhimschi, Haley R Eidem, David C Rinker, Antonis Rokas, Kara Rood, Guomao Zhao, Taryn L Summerfield, Mark B Landon, Catalin S Buhimschi
INTRODUCTION: We performed RNA sequencing with the primary goal of discovering key placental villous trophoblast (VT) and decidua basalis (DB) transcripts differentially expressed in intra-amniotic infection (IAI)-induced preterm birth (PTB). METHODS: RNA was extracted from 15 paired VT and DB specimens delivered of women with: 1) spontaneous PTB in the setting of amniocentesis-proven IAI and histological chorioamnionitis (n = 5); 2) spontaneous idiopathic PTB (iPTB, n = 5); and 3) physiologic term pregnancy (n = 5)...
August 2016: Placenta
Wei Luo, Emily Y-S Huning, Truyen Tran, Dinh Phung, Svetha Venkatesh
BACKGROUND: Preterm birth is a clinical event significant but difficult to predict. Biomarkers such as fetal fibronectin and cervical length are effective, but the often are used only for women with clinically suspected preterm risk. It is unknown whether routinely collected data can be used in early pregnancy to stratify preterm birth risk by identifying asymptomatic women. This paper tries to determine the value of the Victorian Perinatal Data Collection (VPDC) dataset in predicting preterm birth and screening for invasive tests...
June 2016: Heliyon
Jessica Spiegelman, Whitney Booker, Simi Gupta, Jennifer Lam-Rochlin, Andrei Rebarber, Daniel H Saltzman, Ana Monteagudo, Nathan S Fox
Objective To estimate the independent association of a short cervical length (CL), positive fetal fibronectin (fFN), amniotic fluid (AF) sludge, and cervical funneling with spontaneous preterm birth in twin pregnancies. Methods Retrospective cohort study of twin pregnancies managed by a single maternal-fetal medicine practice from June 2005 to February 2014. All patients underwent transvaginal sonographic CL and fFN testing. We reviewed all images from the first CL at 22(0/7) to 25(6/7) weeks for the presence of (1) a short CL, which is defined as ≤25 mm, (2) AF sludge, and (3) cervical funneling, and also recorded (4) the fFN result from that time...
October 2016: American Journal of Perinatology
Manisha Kumar, Shalini Singh, Karuna Sharma, Ritu Singh, V Ravi, J Bhattacharya
AIMS AND OBJECTIVES: To evaluate the predictive value of first trimester biomarkers and ultrasound in determining adverse fetal outcomes in a low risk Asian population. MATERIAL AND METHOD: All low risk, singleton pregnancies between 11 and 14 weeks gestation underwent ultrasound with uterine artery Doppler along with PAPP-A and free β-hCG estimation, and were followed till delivery to observe the outcome. The adverse fetal outcomes detected were structural anomaly, aneuploidy, intrauterine growth restriction, preterm birth and stillbirth (SB)...
August 10, 2016: Journal of Maternal-fetal & Neonatal Medicine
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