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Preterm birth biomarker

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https://www.readbyqxmd.com/read/29739005/smoking-exposure-in-early-pregnancy-and-adverse-pregnancy-outcomes-usefulness-of-urinary-tobacco-specific-nitrosamine-metabolite-4-methylnitrosamino-1-3-pyridyl-1-butanol-levels
#1
Si Won Lee, You Jung Han, Dong Hee Cho, Ho-Seok Kwak, Kinarm Ko, Mi Hye Park, Jung Yeol Han
OBJECTIVES: The aim was to investigate the effect of -maternal smoking exposure assessed by urinary tobacco-specific nitrosamine metabolite 4-(methylnitrosamino)-1-(3-pyridyl)-a1-butanol (NNAL) with adverse pregnancy outcomes. METHODS: A total of 251 pregnant women were recruited. Urinary cotinine and NNAL were measured. Participants' sociodemographics were obtained by questionnaire and pregnancy outcomes were collected by charts review after delivery. RESULTS: The prevalence of smoking was 8...
May 8, 2018: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/29709774/allostatic-load-a-theoretical-model-for-understanding-the-relationship-between-maternal-posttraumatic-stress-disorder-and-adverse-birth-outcomes
#2
Li Yang, Marie-Anne Sanon Rosemberg, Julia S Seng
BACKGROUND: Adverse birth outcomes such as preterm birth and low birth weight are significant public health concerns and contribute to neonatal morbidity and mortality. Studies have increasingly been exploring the predictive effects of maternal posttraumatic stress disorder (PTSD) on adverse birth outcomes. However, the biological mechanisms by which maternal PTSD affects birth outcomes are not well understood. Allostatic load refers to the cumulative dysregulations of the multiple physiological systems as a response to multiple social-ecological levels of chronic stress...
April 10, 2018: Midwifery
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
#3
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
#4
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
#5
Anna V Nielsen, Jacob B Nielsen, 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 non-specific analyte adsorption...
April 23, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29674199/the-impact-of-female-fetal-sex-on-preeclampsia-and-the-maternal-immune-milieu
#6
Brandie D Taylor, Roberta B Ness, Mark A Klebanoff, Gong Tang, James M Roberts, David M Hougaard, Kristin Skogstrand, Catherine L Haggerty
OBJECTIVE: Small studies suggest that fetal sex alters maternal inflammation. We examined the association between fetal sex, preeclampsia and circulating maternal immune markers. METHODS: This was a secondary data analysis within a nested case-control study of 216 preeclamptic women and 432 randomly selected normotensive controls from the Collaborative Perinatal Project. All women had singleton, primiparous pregnancies without chronic health conditions. Logistic regression was used to calculate odds ratios (OR) and 95% confidence intervals (CI) for associations between female fetal sex and preeclampsia...
February 24, 2018: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29670470/maternal-plasma-metabolomic-profiles-in-spontaneous-preterm-birth-preliminary-results
#7
Barbara Lizewska, Joanna Teul, Pawel Kuc, Adam Lemancewicz, Karol Charkiewicz, Joanna Goscik, Marian Kacerovsky, Ramkumar Menon, Wojciech Miltyk, Piotr Laudanski
Objective: To profile maternal plasma metabolome in spontaneous preterm birth. Method: In this retrospective case-control study, we have examined plasma of patient with preterm birth (between 22 and 36 weeks of pregnancy ( n = 57)), with threatened preterm labor (between 23 and 36 weeks of pregnancy ( n = 49)), and with term delivery ( n = 25). Plasma samples were analysed using liquid chromatography quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS) in positive and negative polarity modes...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29658461/-monitoring-of-kidney-injury-in-preterm-infants
#8
Rong Zhang, Wen-Bin Dong
Acute kidney injury (AKI) is a common complication in the neonatal intensive care unit that causes a high mortality of preterm infants and various chronic kidney diseases in adulthood. Preterm infants have immature development of the kidneys at birth. The kidneys continue to develop within a specific time window after birth. However, due to various factors during pregnancy and after birth, preterm infants tend to develop AKI. At present, serum creatinine and urine volume are used for the assessment of kidney injury, and their early sensitivity and specificity have attracted increasing attention...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29656690/maternal-blood-endotoxin-activity-in-pregnancies-complicated-by-preterm-premature-rupture-of-membranes
#9
Stefania Ronzoni, Rohan D'Souza, Oksana Shynlova, Stephen Lye, Kellie E Murphy
OBJECTIVE: To compare maternal blood endotoxin activity (EA) in women with preterm premature rupture of membranes (PPROM) with gestational age (GA) matched controls; to evaluate serial EA till birth in PPROM and its correlation with latency to delivery. METHODS: We followed singleton preterm pregnancies from admission with PPROM until birth. Uncomplicated, GA-matched pregnancies served as controls. Demographics, birth and neonatal outcomes were collected. EA (EAA™) was assessed serially in PPROM and at study entry in controls...
April 26, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29626976/chronic-histiocytic-intervillositis-clinical-biochemical-and-radiological-findings-an-observational-study
#10
Lawrence Koby, Sarah Keating, Ann Kinga Malinowski, Rohan D'Souza
INTRODUCTION: Chronic histiocytic intervillositis (CHI) of the placenta although rare, has a high recurrence rate, is associated with serious adverse pregnancy outcomes and has no available treatment. This study aims to determine clinical, biochemical and radiological factors associated with CHI, to guide management of subsequent pregnancies. METHODS: This retrospective observational study included consecutive cases with a histopathologic diagnosis of CHI after 18 weeks of gestation, between 2001 and 2014, and no controls...
April 2018: Placenta
https://www.readbyqxmd.com/read/29609190/stillbirth-inflammatory-markers-and-obesity-results-from-the-stillbirth-collaborative-research-network
#11
Margo S Harrison, Vanessa R Thorsten, Donald J Dudley, Corette B Parker, Matthew A Koch, Carol J R Hogue, Barbara J Stoll, Robert M Silver, Michael W Varner, M Halit Pinar, Donald R Coustan, George R Saade, Radek K Bukowski, Deborah L Conway, Marian Willinger, Uma M Reddy, Robert L Goldenberg
BACKGROUND:  Obesity is associated with increased risk of stillbirth, although the mechanisms are unknown. Obesity is also associated with inflammation. Serum ferritin, C-reactive protein, white blood cell count, and histologic chorioamnionitis are all markers of inflammation. OBJECTIVE:  This article determines if inflammatory markers are associated with stillbirth and body mass index (BMI). Additionally, we determined whether inflammatory markers help to explain the known relationship between obesity and stillbirth...
April 2, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29603018/expression-of-inflammatory-markers-in-women-with-perinatal-depressive-symptoms
#12
R Buglione-Corbett, K M Deligiannidis, K Leung, N Zhang, M Lee, M C Rosal, T A Moore Simas
Perinatal depression affects 10-20% of women and is associated with poor outcomes for mother and child. Inflammation is associated with depression in non-pregnant adults. Perinatal depression and inflammation in pregnancy are independently associated with morbidities including obesity, gestational diabetes, preeclampsia, and preterm birth. The role of inflammation in perinatal depression has received little attention. We hypothesized an association between self-reported perinatal depressive symptoms and serum inflammatory biomarkers TNF-α, IL-6, IL-1β, and CRP...
March 30, 2018: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/29572583/insights-into-the-human-oral-microbiome
#13
REVIEW
Digvijay Verma, Pankaj Kumar Garg, Ashok Kumar Dubey
Human oral cavity harbors the second most abundant microbiota after the gastrointestinal tract. The expanded Human Oral Microbiome Database (eHOMD) that was last updated on November 22, 2017, contains the information of approximately 772 prokaryotic species, where 70% is cultivable, and 30% belong to the uncultivable class of microorganisms along with whole genome sequences of 482 taxa. Out of 70% culturable species, 57% have already been assigned to their names. The 16S rDNA profiling of the healthy oral cavity categorized the inhabitant bacteria into six broad phyla, viz...
March 23, 2018: Archives of Microbiology
https://www.readbyqxmd.com/read/29570915/ischemia-modified-albumin-in-preterm-infants-born-to-mothers-with-preeclampsia
#14
Özmert M A Özdemir, Emine Özdemir, Yaşar Enli, Özer Öztekin, Hacer Ergin
BACKGROUND: Preeclampsia (PE) is at increased risk for maternal and/or fetal mortality or serious morbidity. PE is associated with ischemia and increased oxidative stress in placenta, which may lead to modification of plasma albumin to ischemia-modified-albumin (IMA). We aimed to investigate of IMA and hematological parameters in premature infants born to mothers with normal pregnancy and preeclampsia, and also in their mothers. METHODS: Twentyfive pregnants with PE and their premature newborns as PE-group, and 25 normotensive pregnants and their premature newborns as control-group were included the study...
March 23, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29558518/risk-factors-for-type-2-diabetes-mellitus-an-exposure-wide-umbrella-review-of-meta-analyses
#15
Vanesa Bellou, Lazaros Belbasis, Ioanna Tzoulaki, Evangelos Evangelou
BACKGROUND: Type 2 diabetes mellitus (T2DM) is a global epidemic associated with increased health expenditure, and low quality of life. Many non-genetic risk factors have been suggested, but their overall epidemiological credibility has not been assessed. METHODS: We searched PubMed to capture all meta-analyses and Mendelian randomization studies for risk factors of T2DM. For each association, we estimated the summary effect size, its 95% confidence and prediction interval, and the I2 metric...
2018: PloS One
https://www.readbyqxmd.com/read/29552637/impact-of-chronic-neonatal-intermittent-hypoxia-on-severity-of-retinal-damage-in-a-rat-model-of-oxygen-induced-retinopathy
#16
Kay D Beharry, Charles L Cai, Taimur Ahmad, Sibel Guzel, Gloria B Valencia, Jacob V Aranda
Neonatal intermittent hypoxia (IH) followed by re-oxygenation in normoxia or supplemental oxygen (IHR) increases the risk for severe retinopathy of prematurity (ROP). The exact timing for the onset of retinal damage which may guide strategic interventions during retinal development, is unknown. We tested the hypothesis that chronic exposure of the immature retina to neonatal IH induces early manifestations of retinal damage that can be utilized as key time points for strategic pharmacologic intervention. Newborn rats were exposed to IH within 2 hours of birth (P0) until P14, or allowed to recover in room air (RA) from P14 to P21 (IHR)...
2018: Journal of Nature and Science
https://www.readbyqxmd.com/read/29526602/epigenome-wide-study-for-the-offspring-exposed-to-maternal-hbv-infection-during-pregnancy-a-pilot-study
#17
Qijun Cheng, Bin Zhao, Zhenxiang Huang, Yanhua Su, Biqin Chen, Songjing Yang, Xueqi Peng, Qilin Ma, Xiaoshan Yu, Benhua Zhao, Xiayi Ke
BACKGROUND & AIM: Hepatitis B virus (HBV) can be transmitted to infants, and is related to infants' later disease risk. Epigenetic change (such as DNA methylation) may be mechanism underlying the relationship. In this study, we aimed to investigate whether prenatal HBV infection could alter DNA methylation status in newborns. METHOD: We selected 12 neonates with intrauterine HBV infection whose mothers were HBsAg-positive during pregnancy, relative to 12 HBV-free neonates with HBsAg-negative mothers...
June 5, 2018: Gene
https://www.readbyqxmd.com/read/29524791/polybacterial-stimulation-suggests-discrete-il-6-il-6r-signaling-in-human-fetal-membranes-potential-implications-on-il-6-bioactivity
#18
Nathalia Mayumi Noda-Nicolau, Jossimara Polettini, Márcia Guimarães da Silva, Morgan R Peltier, Ramkumar Menon
The polybacterial invasion of the amniotic cavity and risk of preterm birth is often due to cervicovaginal bacteria such as genital mycoplasmas (Mycoplasma hominis and Ureaplasma urealyticum) and Gardnerella vaginalis. The most studied biomarker associated with preterm birth is interleukin-6 (IL-6), a pleiotropic cytokine that performs different functions based on classical or trans-signaling mechanisms. This study evaluated the changes in IL-6 and IL-6 function associated accessory molecules by human fetal membranes to determine the functional availability of IL-6 assessment in an in vitro model of polybacterial infection...
April 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29519542/point-of-care-fecal-calprotectin-monitoring-in-preterm-infants-at-risk-for-necrotizing-enterocolitis
#19
Warapan Nakayuenyongsuk, Megan Christofferson, David K Stevenson, Karl Sylvester, Henry C Lee, K T Park
OBJECTIVE: To establish baseline trends in fecal calprotectin, a protein excreted into the stool when there is neutrophilic inflammation in the bowel, in infants at risk for necrotizing enterocolitis (NEC). STUDY DESIGN: We performed a prospective observational cohort study in infants with a birth weight of <1500 g without existing bowel disease at a level IV neonatal intensive care unit from October 2015 to September 2016. Stools were collected once daily for 30 days or until 32 weeks postmenstrual age and processed using the Fecal Calprotectin High Range Quantitative Quantum Blue assay...
May 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29516617/extracellular-vesicle-rnas-reflect-placenta-dysfunction-and-are-a-biomarker-source-for-preterm-labour
#20
Shannon Fallen, David Baxter, Xiaogang Wu, Taek-Kyun Kim, Oksana Shynlova, Min Young Lee, Kelsey Scherler, Stephen Lye, Leroy Hood, Kai Wang
Preterm birth (PTB) can lead to lifelong complications and challenges. Identifying and monitoring molecular signals in easily accessible biological samples that can diagnose or predict the risk of preterm labour (PTL) in pregnant women will reduce or prevent PTBs. A number of studies identified putative biomarkers for PTL including protein, miRNA and hormones from various body fluids. However, biomarkers identified from these studies usually lack consistency and reproducibility. Extracellular vesicles (EVs) in circulation have gained significant interest in recent years as these vesicles may be involved in cell-cell communication...
May 2018: Journal of Cellular and Molecular Medicine
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