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https://www.readbyqxmd.com/read/28935707/the-eutheria-specific-mir-290-mir-371-cluster-modulates-placental-growth-and-maternal-fetal-transport
#1
Alireza Paikari, Cassandra Belair, Danial Saw, Robert Blelloch
A family of vertebrate-specific microRNAs called the ESCC microRNAs arises from two genetic loci in mammals, the miR-290/miR-371 and miR-302 loci. While the miR-302 locus is found broadly among vertebrates, the miR-290/miR-371 locus is unique to eutheria (placental mammals), suggesting a role in placental development. Here, we evaluate that role. A knockin reporter for the mouse miR-290 cluster gene is expressed throughout the embryo until gastrulation at which time it becomes specifically expressed in extraembryonic tissues and the germline...
September 21, 2017: Development
https://www.readbyqxmd.com/read/28935498/are-in-vivo-and-in-vitro-assessments-of-comparative-and-combined-toxicity-of-the-same-metallic-nanoparticles-compatible-or-contradictory-or-both-a-juxtaposition-of-data-obtained-in-respective-experiments-with-nio-and-mn3o4-nanoparticles
#2
Ilzira Minigalieva, Tatiana Bushueva, Eleonore Fröhlich, Claudia Meindl, Kristin Öhlinger, Vladimir Panov, Anatoly Varaksin, Vladimir Shur, Ekaterina Shishkina, Vladimir Gurvich, Boris Katsnelson
Comparative and combined damaging effects of NiO and Mn3O4 nanoparticles were estimated on cultures of several established human cell lines. The cytotoxicity indices used were: (a) reduction in cellular dehydrogenase activity, (b) decrease in the ATP-content, (c) for SH-SY5Y cells also decrease in the tyrosine hydroxylase content. The combined cytotoxicity was modeled using the Response Surface Methodology. When assessing the stability of metal oxide nanoparticles (MeO-NPs) in cultural media used by us, we found that the addition of the fetal bovine serum (FBS) to them renders NiO-NPs and, to even greater extent, Mn3O4-NPs exponentially slow soluble while without FBS their dissolution was virtually undetectable...
September 18, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28935263/predicting-preterm-birth-cervical-length-and-fetal-fibronectin
#3
REVIEW
Moeun Son, Emily S Miller
Spontaneous preterm birth remains the leading cause of neonatal morbidity and mortality worldwide, and accounts for a significant global health burden. Several obstetric strategies to screen for spontaneous preterm delivery, such as cervical length and fetal fibronectin measurement, have emerged. However, the effectiveness of these strategies relies on their ability to accurately predict those pregnancies at increased risk for spontaneous preterm birth (SPTB). Transvaginal cervical shortening is predictive of preterm birth and when coupled with appropriate preterm birth prevention strategies, has been associated with reductions in SPTB in asymptomatic women with a singleton gestation...
September 18, 2017: Seminars in Perinatology
https://www.readbyqxmd.com/read/28935064/no-231-guidelines-for-the-management-of-vasa-previa
#4
Robert Gagnon
OBJECTIVES: To describe the etiology of vasa previa and the risk factors and associated condition, to identify the various clinical presentations of vasa previa, to describe the ultrasound tools used in its diagnosis, and to describe the management of vasa previa. OUTCOMES: Reduction of perinatal mortality, short-term neonatal morbidity, long-term infant morbidity, and short-term and long-term maternal morbidity and mortality. EVIDENCE: Published literature on randomized trials, prospective cohort studies, and selected retrospective cohort studies was retrieved through searches of PubMed or Medline, CINAHL, and the Cochrane Library, using appropriate controlled vocabulary (e...
October 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28935062/no-260-ultrasound-in-twin-pregnancies
#5
Lucie Morin, Kenneth Lim
OBJECTIVE: To review the literature with respect to the use of diagnostic ultrasound in the management of twin pregnancies. To make recommendations for the best use of ultrasound in twin pregnancies. OUTCOMES: Reduction in perinatal mortality and morbidity and short- and long-term neonatal morbidity in twin pregnancies. Optimization of ultrasound use in twin pregnancies. EVIDENCE: Published literature was retrieved through searches of PubMed and the Cochrane Library in 2008 and 2009 using appropriate controlled vocabulary (e...
October 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28934223/ursodeoxycholic-acid-prevents-ventricular-conduction-slowing-and-arrhythmia-by-restoring-t-type-calcium-current-in-fetuses-during-cholestasis
#6
Oladipupo Adeyemi, Anita Alvarez-Laviada, Francisca Schultz, Effendi Ibrahim, Michael Trauner, Catherine Williamson, Alexey V Glukhov, Julia Gorelik
BACKGROUND: Increased maternal serum bile acid concentrations in intrahepatic cholestasis of pregnancy (ICP) are associated with fetal cardiac arrhythmias. Ursodeoxycholic acid (UDCA) has been shown to demonstrate anti-arrhythmic properties via preventing ICP-associated cardiac conduction slowing and development of reentrant arrhythmias, although the cellular mechanism is still being elucidated. METHODS: High-resolution fluorescent optical mapping of electrical activity and electrocardiogram measurements were used to characterize effects of UDCA on one-day-old neonatal and adult female Langendorff-perfused rat hearts...
2017: PloS One
https://www.readbyqxmd.com/read/28932228/pertussis-maternal-immunization-narrowing-the-knowledge-gaps-on-the-duration-of-transferred-protective-immunity-and-on-vaccination-frequency
#7
María Emilia Gaillard, Daniela Bottero, María Eugenia Zurita, Francisco Carriquiriborde, Pablo Martin Aispuro, Erika Bartel, David Sabater-Martínez, María Sol Bravo, Celina Castuma, Daniela Flavia Hozbor
Maternal safety through pertussis vaccination and subsequent maternal-fetal-antibody transfer are well documented, but information on infant protection from pertussis by such antibodies and by subsequent vaccinations is scarce. Since mice are used extensively for maternal-vaccination studies, we adopted that model to narrow those gaps in our understanding of maternal pertussis immunization. Accordingly, we vaccinated female mice with commercial acellular pertussis (aP) vaccine and measured offspring protection against Bordetella pertussis challenge and specific-antibody levels with or without revaccination...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28931786/suppressive-effects-of-extract-of-cedar-wood-on-heat-induced-expression-of-cellular-heat-shock-protein
#8
Junji Miyakoshi, Eri Matsubara, Eijiro Narita, Shin Koyama, Yoko Shimizu, Shuichi Kawai
  In recent years, highly antimicrobial properties of cedar heartwood essential oil against the wood-rotting fungi and pathogenic fungi have been reported in several papers. Antimicrobial properties against oral bacteria by hinokitiol contained in Thujopsis have been also extensively studied. The relation of naturally derived components and human immune system has been studied in some previous papers. In the present study, we focused on Japanese cedar, which has the widest artificial afforestation site in the country among various tree species...
September 20, 2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28930860/preoperative-infrarenal-abdominal-aorta-balloon-catheter-occlusion-combined-with-bakri-tamponade-reduced-maternal-morbidity-of-placenta-increta-percreta
#9
Chanjuan Zeng, Mengyuan Yang, Yiling Ding, Ling Yu, Wen Deng, Yu Hu, Xiujuan Gong
BACKGROUND: Placenta increta/percreta is an increasingly common and life-threatening obstetric complication. It poses a management challenge to clinicians. The present study aimed to evaluate efficacy and safety of preoperative placement of infrarenal abdominal aorta balloon catheter (IAABC) alone or combined with Bakri tamponade for the management of cases with placenta increta/percreta. METHODS: We retrospectively analyzed all cases with placenta increta/percreta at a tertiary referral teaching hospital in China between the year 2014 and 2017...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28925570/first-trimester-screening-based-on-ultrasound-and-cfdna-vs-first-trimester-combined-screening-a-randomized-controlled-study
#10
Karl Oliver Kagan, Fabrina Sroka, Jiri Sonek, Harald Abele, Kai Lüthgens, Maximilian Schmid, Philipp Wagner, Sara Brucker, Diethelm Wallwiener, Markus Hoopmann
OBJECTIVE: Prospective randomized trial to compare the performance of first trimester combined screening (FTCS) with an approach that uses the combination of a detailed ultrasound examination and cfDNA analysis. METHODS: Pregnant women with a normal first-trimester ultrasound examination at 11 to 13 weeks' gestation (fetal NT ≤3.5 mm and no fetal defects) were randomized into two groups. In the first group, the risk of aneuploidy was assessed using FTCS based on the most recent FMF UK algorithm...
September 19, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28920943/expression-function-and-regulation-of-the-embryonic-transcription-factor-tbx1-in-parathyroid-tumors
#11
Chiara Verdelli, Laura Avagliano, Vito Guarnieri, Filomena Cetani, Stefano Ferrero, Leonardo Vicentini, Edoardo Beretta, Alfredo Scillitani, Pasquale Creo, Gaetano Pietro Bulfamante, Valentina Vaira, Sabrina Corbetta
Transcription factors active in embryonic parathyroid cells can be maintained in adult parathyroids and be involved in tumorigenesis. TBX1, the candidate gene of 22q11.2-DiGeorge syndrome, which includes congenital hypoparathyroidism, is involved in parathyroid embryogenesis. The study aimed to investigate expression, function, and regulation of the parathyroid embryonic transcription factor TBX1 in human parathyroid adult normal and tumor tissues. TBX1 transcripts were detected in normal parathyroids and were deregulated in parathyroid tumors...
September 18, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28912068/angiogenic-imbalance-and-diminished-matrix-metalloproteinase-2-and-9-underlie-regional-decreases-in-uteroplacental-vascularization-and-feto-placental-growth-in-hypertensive-pregnancy
#12
Carlos A Dias-Junior, Juanjuan Chen, Ning Cui, Charles L Chiang, Minglin Zhu, Zongli Ren, Jose S Possomato-Vieira, Raouf A Khalil
Preeclampsia is a form of hypertension-in-pregnancy (HTN-Preg) with unclear mechanism. Generalized reduction of uterine perfusion pressure (RUPP) could be an initiating event leading to uteroplacental ischemia, angiogenic imbalance, and HTN-Preg. Additional regional differences in uteroplacental blood flow could further affect the pregnancy outcome and increase the risk of preeclampsia in twin or multiple pregnancy, but the mechanisms involved are unclear. To test the hypothesis that regional differences in angiogenic balance and matrix metalloproteinases (MMPs) underlie regional uteroplacental vascularization and feto-placental development, we compared fetal and placental growth, and placental and myoendometrial vascularization in the proximal, middle and distal regions of the uterus (in relation to the iliac bifurcation) in normal pregnant (Preg) and RUPP rats...
September 11, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28904115/new-option-in-the-lives-saved-tool-list-allows-for-the-conversion-of-prevalence-of-small-for-gestational-age-and-preterm-births-to-prevalence-of-low-birth-weight
#13
REVIEW
Naoko Kozuki, Joanne Katz, Adrienne Clermont, Neff Walker
Background: The Lives Saved Tool (LiST) is a software model that estimates the health impact of scaling up interventions on maternal and child health. One of the outputs of the model is an estimation of births by fetal size [appropriate-for-gestational-age (AGA) or small-for-gestational-age (SGA)] and by length of gestation (term or preterm), both of which influence birth weight. LiST uses prevalence estimates of births in these categories rather than of birth weight categories, because the causes and health consequences differ between SGA and preterm birth...
September 13, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28903104/basilar-artery-diameter-is-inversely-associated-with-fetal-type-circle-of%C3%A2-willis
#14
Oscar H Del Brutto, Robertino M Mera, Aldo F Costa, Victor J Del Brutto
BACKGROUND: The relationship between basilar artery (BA) diameter and Circle of Willis (CoW) configuration has been scarcely investigated. We aimed to assess this association in community-dwelling older adults. METHODS: MRAs of 346 individuals were reviewed. Using generalized linear models adjusted for demographics and cardiovascular risk factors, we assessed the relationship between BA diameter and fetal and non-fetal types CoW, as well as the impact of this relationship on BA ectasia prevalence...
2017: European Neurology
https://www.readbyqxmd.com/read/28902364/functional-roles-of-c-ebp%C3%AE-and-sumo%C3%A2-modification-in-lung-development
#15
Yuan-Dong Chen, Jiang-Yan Liu, Yan-Min Lu, Hai-Tao Zhu, Wei Tang, Qiu-Xia Wang, Hong-Yan Lu
CCAAT enhancer binding protein alpha (C/EBPα) is a transcription factor regulating the core aspects of cell growth and differentiation. The present study investigated the level and functional role of C/EBPα during the development of the rat lung. C/EBPα protein exhibits a dynamic expression pattern. The correlation between the expression of C/EBPα protein and the content of glycogen during lung maturation was analyzed to understand the function of C/EBPα in lung differentiation. The high expression of C/EBPα coincides with the reduction of glycogen in the fetal lung...
October 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28898888/outcome-of-bronchopulmonary-sequestration-with-massive-pleural-effusion-after-intrafetal-vascular-laser-ablation
#16
Ingo Gottschalk, Brigitte Strizek, Michael R Mallmann, Andreas Müller, Annegret Geipel, Ulrich Gembruch, Philipp Klaritsch, Bence Csapo, Christoph Berg
OBJECTIVE: To assess the outcome of 12 fetuses with bronchopulmonary sequestration (BPS) and massive pleural effusion after intrafetal vascular laser ablation (VLA). METHODS: All fetuses with BPS and massive pleural effusion that were treated with intrafetal VLA during a 5-year period (2012-2016) were reviewed for safety, intrauterine course, and postnatal outcome. RESULTS: In the study period, 12 fetuses with BPS were treated with VLA. In 7 (58...
September 13, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28895475/delayed-intranasal-infusion-of-human-amnion-epithelial-cells-improves-white-matter-maturation-after-asphyxia-in-preterm-fetal-sheep
#17
Lotte G van den Heuij, Mhoyra Fraser, Suzanne L Miller, Graham Jenkin, Euan M Wallace, Joanne O Davidson, Christopher A Lear, Rebecca Lim, Guido Wassink, Alistair J Gunn, Laura Bennet
Perinatal hypoxic-ischemic (HI) brain injury remains highly associated with neurodevelopmental disability after preterm birth. There is increasing evidence that disability is linked with impaired white matter maturation, but there is no specific treatment. In this study, we evaluated whether, in preterm fetal sheep, delayed intranasal infusion of human amnion epithelial cells (hAECs) given 1, 3 and 10 days after severe HI, induced by umbilical cord occlusion for 25 min, can restore white matter maturation or reduce delayed cell loss...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28893506/cytochrome-b561-copper-%C3%AE-cleaved-amyloid-precursor-protein-and-niemann-pick-c1-protein-are-involved-in-ascorbate-induced-release-and-membrane-penetration-of-heparan-sulfate-from-endosomal-s-nitrosylated-glypican-1
#18
Fang Cheng, Lars-Åke Fransson, Katrin Mani
Ascorbate-induced release of heparan sulfate from S-nitrosylated heparan sulfate proteoglycan glypican-1 takes place in endosomes. Heparan sulfate penetrates the membrane and is transported to the nucleus. This process is dependent on copper and on expression and processing of the amyloid precursor protein. It remains unclear how exogenously supplied ascorbate can generate HS-anMan in endosomes and how passage through the membrane is facilitated. Here we have examined wild-type, Alzheimer Tg2576 and amyloid precursor protein (-/-) mouse fibroblasts and human fetal and Niemann-Pick C1 fibroblasts by using deconvolution immunofluorescence microscopy, siRNA technology and [S(35)]sulfate-labeling, vesicle isolation and gel chromatography...
September 9, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28887130/gender-specific-impairment-of-in-vitro-sinoatrial-node-chronotropic-responses-and-of-myocardial-ischemia-tolerance-in-rats-exposed-prenatally-to-betamethasone
#19
L R A Kiguti, C S Borges, A Mueller, K P Silva, C M Polo, J L Rosa, P V Silva, G Missassi, L Valencise, W G Kempinas, A S Pupo
Excessive fetal glucocorticoid exposure has been linked to increased susceptibility to hypertension and cardiac diseases in the adult life, a process called fetal programming. The cardiac contribution to the hypertensive phenotype of glucocorticoid-programmed progeny is less known, therefore, we investigated in vitro cardiac functional parameters from rats exposed in utero to betamethasone. Pregnant Wistar rats received vehicle (VEH) or betamethasone (BET, 0.1mg/kg, i.m.) at gestational days 12, 13, 18 and 19...
September 5, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28886917/effects-of-the-phthalate-exposure-during-three-gestation-periods-on-birth-weight-and-their-gender-differences-a-birth-cohort-study-in-china
#20
Yun-Wei Zhang, Hui Gao, Lei-Jing Mao, Xing-Yong Tao, Xing Ge, Kun Huang, Peng Zhu, Jia-Hu Hao, Qu-Nan Wang, Yuan-Yuan Xu, Zhong-Xiu Jin, Jie Sheng, Ye-Qing Xu, Shuang-Qin Yan, Xu-Guang Tao, Fang-Biao Tao
Phthalate has been widely used as a type of plasticiser in various consuming products in daily life. Recent studies have suggested that prenatal phthalate exposure may have adverse effects on fetal development. We aimed to identify the effects of in utero phthalate exposure on birth weight (BW). We evaluated a birth cohort comprising 3474 pregnant women and their single infants; 3103, 2975 and 2838 urine samples were collected in the first, second and third trimesters, respectively. Phthalate metabolites included monomethyl phthalate (MMP), monoethyl phthalate (MEP), mono-n-butyl phthalate (MBP), monobenzyl phthalate (MBzP), mono-(2-ethylhexyl) phthalate (MEHP), mono-(2-ethyl-5-oxohexyl) phthalate (MEHHP), and mono-(2-ethyl-5-hydroxylhexyl) phthalate (MEOHP), which were analysed in the urine by using high performance liquid chromatography-tandem mass spectrometry...
September 5, 2017: Science of the Total Environment
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