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https://www.readbyqxmd.com/read/28339967/placental-transporter-localization-and-expression-in-the-human-the-importance-of-species-sex-and-gestational-age-differences1
#1
Natasha Walker, Panagiotis Filis, Ugo Soffientini, Michelle Bellingham, Peter J O'Shaughnessy, Paul A Fowler
The placenta is a critical organ during pregnancy, essential for the provision of an optimal intrauterine environment, with fetal survival, growth and development relying on correct placental function. It must allow nutritional compounds and relevant hormones to pass into the fetal bloodstream and metabolic waste products to be cleared. It also acts as a semi-permeable barrier to potentially harmful chemicals both endogenous and exogenous. Transporter proteins allow for bidirectional transport and are found in the syncytiotrophoblast of the placenta and endothelium of fetal capillaries...
March 7, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339475/correction-the-world-health-organization-fetal-growth-charts-a-multinational-longitudinal-study-of-ultrasound-biometric-measurements-and-estimated-fetal-weight
#2
Torvid Kiserud, Gilda Piaggio, Guillermo Carroli, Mariana Widmer, José Carvalho, Lisa Neerup Jensen, Daniel Giordano, José Guilherme Cecatti, Hany Abdel Aleem, Sameera A Talegawkar, Alexandra Benachi, Anke Diemert, Antoinette Tshefu Kitoto, Jadsada Thinkhamrop, Pisake Lumbiganon, Ann Tabor, Alka Kriplani, Rogelio Gonzalez, Kurt Hecher, Mark A Hanson, A Metin Gülmezoglu, Lawrence D Platt
[This corrects the article DOI: 10.1371/journal.pmed.1002220.].
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28334989/impaired-fetal-muscle-development-and-jak-stat-activation-mark-disease-onset-and-progression-in-a-mouse-model-for-merosin-deficient-congenital-muscular-dystrophy
#3
Andreia M Nunes, Ryan D Wuebbles, Apurva Sarathy, Tatiana M Fontelonga, Marianne Deries, Dean J Burkin, Sólveig Thorsteinsdóttir
Merosin-deficient congenital muscular dystrophy type 1A (MDC1A) is a dramatic neuromuscular disease in which crippling muscle weakness is evident from birth. Here we use the dyW mouse model for human MDC1A to trace the onset of the disease during development in utero. We find that myotomal and primary myogenesis proceed normally in homozygous dyW-/-embryos. Fetal dyW-/-muscles display the same number of myofibers as wildtype muscles, but by E18.5 dyW-/-muscles are significantly smaller and muscle size is not recovered post-natally...
March 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334461/profile-of-children-diagnosed-with-a-fetal-alcohol-spectrum-disorder-a-retrospective-chart-review
#4
Natasha Reid, Doug Shelton, Judith Warner, Frances O'Callaghan, Sharon Dawe
INTRODUCTION AND AIMS: Fetal alcohol spectrum disorder (FASD) is a significant public health concern, and growing recognition in Australia led to the establishment of a specialist service for young children. The aim of the current study was to report on the diagnostic profile of a group of children who attended the service, to document the extent to which there were comorbid diagnoses and to provide information on the neurocognitive functioning of the children. DESIGN AND METHODS: This study was a retrospective chart review conducted by the diagnostic service...
March 23, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28333275/anti-m%C3%A3-llerian-hormone-inhibits-activation-and-growth-of-bovine-ovarian-follicles-in-vitro-and-is-localized-to-growing-follicles
#5
M Y Yang, R A Cushman, J E Fortune
STUDY QUESTION: Does anti-Müllerian hormone (AMH) inhibit activation (initiation of growth) of primordial follicles and attenuate the growth of primary follicles in cattle, an excellent animal model for human ovarian follicular development? SUMMARY ANSWER: AMH inhibited activation of bovine primordial follicles and attenuated the growth of activated follicles in vitro. WHAT IS KNOWN ALREADY: In mice null mutant for AMH, the pool of primordial follicles is depleted prematurely and AMH inhibits follicle activation in vitro...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28332771/prenatal-high-fat-diet-alters-placental-morphology-nutrient-transporter-expression-and-mtorc1-signaling-in-rat
#6
Lin Song, Bo Sun, Gretha J Boersma, Zachary A Cordner, Jianqun Yan, Timothy H Moran, Kellie L K Tamashiro
OBJECTIVE: This study aimed to determine how the rat placenta and fetus respond to maternal high-fat (HF) diet during gestation and to identify the possible mechanisms. METHODS: Pregnant Sprague-Dawley rats were fed with standard chow (13.5% fat) or HF (60% fat) diet during gestation. Placentas were collected on gestation day 21. RESULTS: HF dams had greater fat mass, higher plasma leptin, lower plasma adiponectin, and impaired glucose tolerance during pregnancy...
March 23, 2017: Obesity
https://www.readbyqxmd.com/read/28332335/second-to-third-trimester-longitudinal-growth-assessment-for-the-prediction-of-sga-and-late-fgr
#7
J Caradeux, E Eixarch, E Mazarico, T R Basuki, E Gratacos, F Figueras
BACKGROUND: Detection of fetal growth restriction (FGR) remains poor. Most screening strategies rely on a cross-sectional evaluation of fetal size at one point during the third trimester. A longitudinal and individualized approach may allow a more appropriate evaluation. OBJECTIVES: To compare second to third trimester longitudinal growth assessment with cross-sectional evaluation at third trimester in the prediction of SGA and late FGR. METHODS: A cohort of 2696 unselected singletons pregnancies scanned at 21 ± 2 and 32 ± 2 weeks was created...
March 23, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28331377/management-of-systemic-lupus-erythematosus-during-pregnancy-challenges-and-solutions
#8
REVIEW
Caroline L Knight, Catherine Nelson-Piercy
Systemic lupus erythematosus (SLE) is a chronic, multisystem autoimmune disease predominantly affecting women, particularly those of childbearing age. SLE provides challenges in the prepregnancy, antenatal, intrapartum, and postpartum periods for these women, and for the medical, obstetric, and midwifery teams who provide their care. As with many medical conditions in pregnancy, the best maternal and fetal-neonatal outcomes are obtained with a planned pregnancy and a cohesive multidisciplinary approach. Effective prepregnancy risk assessment and counseling includes exploration of factors for poor pregnancy outcome, discussion of risks, and appropriate planning for pregnancy, with consideration of discussion of relative contraindications to pregnancy...
2017: Open Access Rheumatology: Research and Reviews
https://www.readbyqxmd.com/read/28330551/-thalassaemia-and-pregnancy
#9
Viktoriya Luk'yanenko, Marjoes Droogh, Ulrik Malthe Overgaard
Global migration has resulted in a larger geographical spread of people with risk of hereditary anaemias. This leads to an increased incidence of pregnant women with rare diseases, including thalassaemia also in Scandinavia. Thalassaemia can cause severe anaemia and other complications during pregnancy, like risk of miscarriage, intrauterine fetal death, abruptio, intrauterine growth retardation, hypertension, gestational diabetes and pre-eclampsia. In this article, we focus on the aetiology, assessment, antenatal care and treatment of pregnant women with thalassaemia...
March 20, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28330503/caffeine-modulates-glucocorticoid-induced-expression-of-ctgf-in-lung-epithelial-cells-and-fibroblasts
#10
Markus Fehrholz, Kirsten Glaser, Christian P Speer, Silvia Seidenspinner, Barbara Ottensmeier, Steffen Kunzmann
BACKGROUND: Although caffeine and glucocorticoids are frequently used to treat chronic lung disease in preterm neonates, potential interactions are largely unknown. While anti-inflammatory effects of glucocorticoids are well defined, their impact on airway remodeling is less characterized. Caffeine has been ascribed to positive effects on airway inflammation as well as remodeling. Connective tissue growth factor (CTGF, CCN2) plays a key role in airway remodeling and has been implicated in the pathogenesis of chronic lung diseases such as bronchopulmonary dysplasia (BPD) in preterm infants...
March 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28330415/novel-detection-of-placental-insufficiency-by-magnetic-resonance-imaging-in-the-nonhuman-primate
#11
Jamie O Lo, Victoria H J Roberts, Matthias C Schabel, Xiaojie Wang, Terry K Morgan, Zheng Liu, Colin Studholme, Christopher D Kroenke, Antonio E Frias
The placenta is a vital organ necessary for healthy fetal development. Placental insufficiency creates an in utero environment where the fetus is at risk of insufficient oxygen or nutrient exchange. This is primarily caused by impairment of either maternal or fetal circulation or vascular thrombosis such as placental infarction. As a result of placental dysfunction, affected fetuses may be growth restricted, neurologically impaired, and at risk of increased morbidity and mortality. In a cohort of 4 pregnant Rhesus macaques, we describe antenatal detection of naturally occurring intrauterine growth restriction (IUGR) and aberrant fetal neurodevelopment in 1 animal...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28329054/whole-heart-detailed-and-quantitative-anatomy-myofibre-structure-and-vasculature-from-x-ray-phase-contrast-synchrotron-radiation-based-micro-computed-tomography
#12
Anna Gonzalez-Tendero, Chong Zhang, Vedrana Balicevic, Rubén Cárdenes, Sven Loncaric, Constantine Butakoff, Bruno Paun, Anne Bonnin, Patricia Garcia-Cañadilla, Emma Muñoz-Moreno, Eduard Gratacós, Fatima Crispi, Bart Bijnens
Background: While individual cardiac myocytes only have a limited ability to shorten, the heart efficiently pumps a large volume-fraction thanks to a cell organization in a complex 3D fibre structure. Subclinical subtle cardiac structural remodelling is often present before symptoms arise. Understanding and early detection of these subtle changes is crucial for diagnosis and prevention. Additionally, personalized computational modelling requires knowledge on the multi-scale structure of the whole heart and vessels...
March 15, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28327604/chymase-producing-cells-of-the-innate-immune-system-are-required-for-decidual-vascular-remodeling-and-fetal-growth
#13
Nicole Meyer, Katja Woidacki, Martin Knöfler, Gudrun Meinhardt, Désirée Nowak, Philipp Velicky, Jürgen Pollheimer, Ana C Zenclussen
Intrauterine growth restriction (IUGR) is caused by insufficient remodeling of spiral arteries (SAs). The mechanism underlying the relevance of natural killer cells (NKs) and mast cells (MCs) for SA remodeling and its effects on pregnancy outcome are not well understood. We show that NK depletion arrested SA remodeling without affecting pregnancy. MC depletion resulted in abnormally remodeled SAs and IUGR. Combined absence of NKs and MCs substantially affected SA remodeling and impaired fetal growth. We found that α-chymase mast cell protease (Mcpt) 5 mediates apoptosis of uterine smooth muscle cells, a key feature of SA remodeling...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#14
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28326464/meningiomas-in-pregnancy-timing-of-surgery-and-clinical-outcomes-as-observed-in-104-cases-and-establishment-of-a-best-management-strategy
#15
REVIEW
Yosef Laviv, Ahmed Bayoumi, Anand Mahadevan, Brett Young, Myles Boone, Ekkehard M Kasper
BACKGROUND: There is a strong correlation between the level of circulating female sex hormones and the parturient growth of meningiomas. As a result, rapid changes in meningioma size occur during pregnancy, putting both the mother and fetus at risk. Large, symptomatic meningiomas require surgical resection, regardless of the status of pregnancy. However, the preferred timing of such complex intervention is a matter of debate. The rarity of this clinical scenario and the absence of prospective trials make it difficult to reach evidence-based conclusions...
March 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28325959/perinatal-mortality-associated-with-positive-postmortem-cultures-for-common-oral-flora
#16
Mai He, Alison R Migliori, Patricia Lauro, C James Sung, Halit Pinar
Introduction. To investigate whether maternal oral flora might be involved in intrauterine infection and subsequent stillbirth or neonatal death and could therefore be detected in fetal and neonatal postmortem bacterial cultures. Methods. This retrospective study of postmortem examinations from 1/1/2000 to 12/31/2010 was searched for bacterial cultures positive for common oral flora from heart blood or lung tissue. Maternal age, gestational age, age at neonatal death, and placental and fetal/neonatal histopathological findings were collected...
2017: Infectious Diseases in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28324485/maintenance-of-human-embryonic-stem-cells-by-sphingosine-1-phosphate-and-platelet-derived-growth-factor
#17
Raymond C B Wong, Martin F Pera, Alice Pébay
Human embryonic stem cells (hESCs) have historically been cultivated on feeder layers of primary mouse embryonic fibroblasts (MEF) in a medium supplemented with fetal calf serum (FCS). However, serum contains a wide variety of biologically active compounds that might adversely affect hESC growth and differentiation. Thus, cultivation of stem cells in FCS complicates experimental approaches to define the intracellular mechanisms required for hESC maintenance. This chapter describes the serum-free maintenance of hESCs in culture by addition of sphingosine-1-phosphate (S1P) and platelet-derived growth factor (PDGF)...
March 22, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324040/cord-blood-adipocyte-fatty-acid-binding-protein-levels-correlate-with-gestational-age-and-birth-weight-in-neonates
#18
Kyoung Eun Joung, Sule Umit Cataltepe, Zoe Michael, Helen Christou, Christos S Mantzoros
Context: Infants born small for gestational age (SGA) have increased risk for obesity and metabolic syndrome in future life, but the underlying mechanisms are not fully elucidated. Adipocyte fatty acid binding protein, is an adipokine that has been implicated in modulation of insulin sensitivity and lipid metabolism. Higher plasma AFABP levels are associated with increased risk of metabolic syndrome and cardiovascular morbidity in adults. Alterations in AFABP levels during fetal growth have not been characterized...
January 31, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322267/exposure-of-pregnant-mice-to-triclosan-impairs-placental-development-and-nutrient-transport
#19
Xinyuan Cao, Xu Hua, Xiaoli Wang, Ling Chen
Triclosan (TCS) is associated with spontaneous abortions and fetal growth restriction. Here, we showed that when pregnant mice were treated with 8 mg/kg TCS (8-TCS mice) on gestational days (GD) 6-18 fetal body weights were lower than controls. Placental weights and volumes were reduced in 8-TCS mice. The placental proliferative cells and expression of PCNA and Cyclin D3 on GD13 were remarkably decreased in 8-TCS mice. The decreases in activities and expression of placental System A amino acid or glucose transporters on GD14 and GD17 were observed in 8-TCS mice...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321896/does-tea-consumption-during-early-pregnancy-have-an-adverse-effect-on-birth-outcomes
#20
Jin-Hua Lu, Jian-Rong He, Song-Ying Shen, Xue-Ling Wei, Nian-Nian Chen, Ming-Yang Yuan, Lan Qiu, Wei-Dong Li, Qiao-Zhu Chen, Cui-Yue Hu, Hui-Min Xia, Suzanne Bartington, Kar Keung Cheng, Kin Bong Hubert Lam, Xiu Qiu
BACKGROUND: Tea, a common beverage, has been suggested to exhibit a number of health benefits. However, one of its active ingredients, caffeine, has been associated with preterm birth and low birthweight. We investigated whether tea consumption during early pregnancy is associated with an increased risk of preterm birth and abnormal fetal growth. METHODS: A total of 8775 pregnant women were included from the Born in Guangzhou Cohort Study. Tea consumption (type, frequency, and strength) during their first trimester and social and demographic factors were obtained by way of questionnaires administered during pregnancy...
March 21, 2017: Birth
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