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https://www.readbyqxmd.com/read/28222448/acute-effects-of-viral-exposure-on-p-glyco-protein-function-in-the-mouse-fetal-blood-brain-barrier
#1
Enrrico Bloise, Sophie Petropoulos, Majid Iqbal, Alisa Kostaki, Tania Maria Ortiga-Carvalho, William Gibb, Stephen G Matthews
BACKGROUND/AIMS: Viral infection during pregnancy is known to affect the fetal brain. The toll-like receptor (TLR)-3 is a pattern recognition receptor activated by viruses known to elicit adverse fetal neurological outcomes. The P-glycoprotein (P-gp) efflux transporter protects the developing fetus by limiting the transfer of substrates across both the placenta and the fetal blood-brain barrier (BBB). As such, inhibition of P-gp at these blood-barrier sites may result in increased exposure of the developing fetus to environmental toxins and xenobiotics present in the maternal circulation...
February 22, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222028/expression-purification-and-characterization-of-human-cytosolic-sulfotransferase-sult-1c4
#2
Amber L Guidry, Zachary E Tibbs, Melissa Runge-Morris, Charles N Falany
Human cytosolic sulfotransferase 1C4 (hSULT1C4) is a dimeric Phase II drug-metabolizing enzyme primarily expressed in the developing fetus. SULTs facilitate the transfer of a hydrophilic sulfonate moiety from 3'-phosphoadenosine-5'-phosphosulfate (PAPS) onto an acceptor substrate altering the substrate's biological activity and increasing the compound's water solubility. While several of the hSULTs' endogenous and xenobiotic substrates have been identified, the physiological function of hSULT1C4 remains unknown...
February 21, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28221829/the-evolutionary-economics-of-embryonic-sac-fluids-in-squamate-reptiles
#3
Xavier Bonnet, Guy Naulleau, Richard Shine
The parchment-shelled eggs of squamate reptiles take up substantial water from the nest environment, enabling the conversion of yolk into neonatal tissue and buffering the embryo against the possibility of subsequent dry weather. During development, increasing amounts of water are stored in the embryonic sacs (i.e., membranes around the embryo: amnion, allantois, and chorion). The evolution of viviparity (prolonged uterine retention of developing embryos) means that embryonic-sac fluid storage now imposes a cost (increased maternal burdening), confers less benefit (because the mother buffers fetal water balance), and introduces a potential conflict among uterine siblings (for access to finite water supplies)...
March 2017: American Naturalist
https://www.readbyqxmd.com/read/28220786/intrauterine-zika-virus-infection-of-pregnant-immunocompetent-mice-models-transplacental-transmission-and-adverse-perinatal-outcomes
#4
Meghan S Vermillion, Jun Lei, Yahya Shabi, Victoria K Baxter, Nathan P Crilly, Michael McLane, Diane E Griffin, Andrew Pekosz, Sabra L Klein, Irina Burd
Zika virus (ZIKV) crosses the placenta and causes congenital disease. Here we develop an animal model utilizing direct ZIKV inoculation into the uterine wall of pregnant, immunocompetent mice to evaluate transplacental transmission. Intrauterine inoculation at embryonic day (E) 10, but not E14, with African, Asian or American strains of ZIKV reduces fetal viability and increases infection of placental and fetal tissues. ZIKV inoculation at E10 causes placental inflammation, placental dysfunction and reduces neonatal brain cortical thickness, which is associated with increased activation of microglia...
February 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28219933/akt-signalling-as-a-mediator-of-cardiac-adaptation-to-low-birth-weight
#5
Kimberley Cw Wang, Kimberley J Botting, Song Zhang, Caroline McMillen, Doug A Brooks, Janna L Morrison
Intrauterine insults, such as poor nutrition and placental insufficiency, can alter cardiomyocyte development and this can have significant long-term implications for heart health. Consequently, epidemiological studies have shown that low birth weight babies have an increased risk of death from cardiovascular disease in adult life. In addition, intrauterine growth restriction can result in increased left ventricular hypertrophy, which is the strongest predictor for poor health outcomes in cardiac patients. The mechanisms responsible for these associations are not clear, but a suboptimal intrauterine environment can program alternative expression of genes such as cardiac IGF-2/H19, IGF-2R and AT1R through either an increase or decrease in DNA methylation or histone acetylation at specific loci...
February 20, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28218758/variant-aware-saturating-mutagenesis-using-multiple-cas9-nucleases-identifies-regulatory-elements-at-trait-associated-loci
#6
Matthew C Canver, Samuel Lessard, Luca Pinello, Yuxuan Wu, Yann Ilboudo, Emily N Stern, Austen J Needleman, Frédéric Galactéros, Carlo Brugnara, Abdullah Kutlar, Colin McKenzie, Marvin Reid, Diane D Chen, Partha Pratim Das, Mitchel A Cole, Jing Zeng, Ryo Kurita, Yukio Nakamura, Guo-Cheng Yuan, Guillaume Lettre, Daniel E Bauer, Stuart H Orkin
Cas9-mediated, high-throughput, saturating in situ mutagenesis permits fine-mapping of function across genomic segments. Disease- and trait-associated variants identified in genome-wide association studies largely cluster at regulatory loci. Here we demonstrate the use of multiple designer nucleases and variant-aware library design to interrogate trait-associated regulatory DNA at high resolution. We developed a computational tool for the creation of saturating-mutagenesis libraries with single or multiple nucleases with incorporation of variants...
February 20, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28218564/-a-brief-of-gestational-diabetes-mellitus-risk-factors-and-current-criteria-of-diagnosis
#7
Zahra Al-Aissa, Orsolya Hadarits, Klára Rosta, András Zóka, János Rigó, Gábor Firneisz, Anikó Somogyi
Diabetes is one of the most common metabolic disorders that may cause pathological pregnancy. Treating diabetes recognized during pregnancy results in lowering maternal and fetal complications. These patients present higher risk for excessive weight gain, preeclampsia, delivery with cesarean sections, high risk of developing type 2 diabetes and cardiovascular disease in the future. Fetuses of mothers with gestational diabetes are at higher risk for macrosomia and birth trauma, after delivery they present higher risk of developing neonatal hypoglycemia, hyperbilirubinemia, and respiratory distress syndrome...
February 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28218216/effects-of-previous-laparoscopic-surgical-diagnosis-of-endometriosis-on-pregnancy-outcomes
#8
Hui Li, Hong-Lan Zhu, Xiao-Hong Chang, Yi Li, Yue Wang, Jing Guan, Heng Cui
BACKGROUND: The association between the previous history of endometriosis and obstetric outcomes is still ambiguous. This study aimed to evaluate the effects of previous history of operatively diagnosed endometriosis on pregnancy outcomes. METHODS: A total of 98 primiparous women who had been diagnosed with endometriosis by previous laparoscopic surgery were included in this retrospective cohort study. Pregnancy outcomes were compared between these women (study group) who had a live birth and 300 women without endometriosis (control group) who had a live birth...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28217932/the-relationship-between-the-second-to-fourth-digit-ratios-and-lifelong-premature-ejaculation-a-prospective-comparative-study
#9
D Bolat, G U Kocabas, T Kose, T Degirmenci, M E Aydin, C Dincel
To investigate the relationship between the fetal androgen exposure and lifelong premature ejaculation by using the ratio of the second (index)-to-fourth (ring) digits (2D : 4D) which is the marker for higher prenatal androgen exposure. Totally 65 patients with lifelong premature ejaculation and 65 control cases without any ejaculatory complaints were enrolled in the study. A detailed medical history was obtained and self-estimated intravaginal ejaculatory latency times were recorded. Ejaculation function was evaluated by Premature Ejaculation Diagnostic Tool...
February 19, 2017: Andrology
https://www.readbyqxmd.com/read/28217686/pregnancy-related-osteoporosis-and-spinal-fractures
#10
Ka Yeong Yun, Si Eun Han, Seung Chul Kim, Jong Kil Joo, Kyu Sup Lee
Pregnancy-related osteoporosis is a very rare condition characterized by the occurrence of fracture during pregnancy or the puerperium. Despite its relative rarity, it can be a dangerous condition that causes severe back pain, height loss and disability. Normal physiologic changes during pregnancy, genetic or racial difference, obstetrical history and obstetrical disease, such as preterm labor or pregnancy-induced hypertension, are presumed risk factors of pregnancy-related osteooporosis. However, exact etiology and pathogenesis are uncertain...
January 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28217238/fetus-in-fetu-case-report-and-brief-review-of-literature-on-embryologic-origin-clinical-presentation-imaging-and-differential-diagnosis
#11
Suhas Aithal Sitharama, Bibekanand Jindal, Mrudula Kumari Vuriti, Bikash Kumar Naredi, Sriram Krishnamurthy, Deepak Barathi Subramania
BACKGROUND: Fetus in fetu (FIF) is a rare entity in which a malformed diamniotic monochorionic parasitic fetal twin develops inside a normal co-twin's body, most commonly in the abdominal cavity. FIF is differentiated from the teratoma by the presence of vertebral column often with an appropriate arrangement of other organs or limbs around it. CASE REPORT: A two-and-a-half-year-old girl presented with a painless abdominal swelling in the right hypochondrium. On imaging, a heterogenous soft tissue mass with internal calcific densities was noted in the retroperitoneum...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28216268/dental-pulp-tissue-regeneration-using-dental-pulp-stem-cells-isolated-and-expanded-in-human-serum
#12
Evandro Piva, Susan A Tarlé, Jacques E Nör, Duohong Zou, Elizabeth Hatfield, Tyler Guinn, Emily J Eubanks, Darnell Kaigler
INTRODUCTION: Dental pulp-derived stem cells (DPSCs) have the potential to regenerate dentin and dental pulp tissue because of their differentiation capacity and angiogenic properties. However, for regenerative approaches to gain regulatory and clinical acceptance, protocols are needed to determine more feasible ways to cultivate DPSCs, namely, without the use of xenogeneic-derived components (animal sera) and exogenous growth factors. METHODS: In this study, human DPSCs were isolated from third molars and expanded in standard culture conditions containing fetal bovine serum (DPSCs-FBS) or conditions containing human serum (DPSCs-HS)...
February 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28215301/neurotrophic-factors-and-maternal-nutrition-during-pregnancy
#13
M Dhobale
Maternal nutrition is one of the major determinants of pregnancy outcome. It has been suggested that reduced intakes or lack of specific nutrients during pregnancy influences the length of gestation, proper placental and fetal growth during pregnancy. Maternal nutrition, particularly micronutrients such as folate and vitamin B12, and long-chain polyunsaturated fatty acids (LCPUFA) are the major determinants of the one carbon cycle and are suggested to be at the heart of intrauterine programming of diseases in adult life...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28215300/the-role-of-neurotrophins-in-inflammation-and-allergy
#14
S Manti, P Brown, M K Perez, G Piedimonte
Allergic inflammation is the result of a specific pattern of cellular and humoral responses leading to the activation of the innate and adaptive immune system, which, in turn, results in physiological and structural changes affecting target tissues such as the airways and the skin. Eosinophil activation and the production of soluble mediators such as IgE antibodies are pivotal features in the pathophysiology of allergic diseases. In the past few years, however, convincing evidence has shown that neurons and other neurosensory structures are not only a target of the inflammatory process but also participate in the regulation of immune responses by actively releasing soluble mediators...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28215296/neurotrophins-in-the-brain-interaction-with-alcohol-exposure-during-development
#15
K E Boschen, A Y Klintsova
Fetal alcohol spectrum disorders (FASDs) are a result of the teratogenic effects of alcohol on the developing fetus. Decades of research examining both individuals with FASDs and animal models of developmental alcohol exposure have revealed the devastating effects of alcohol on brain structure, function, behavior, and cognition. Neurotrophic factors have an important role in guiding normal brain development and cellular plasticity in the adult brain. This chapter reviews the current literature showing that alcohol exposure during the developmental period impacts neurotrophin production and proposes avenues through which alcohol exposure and neurotrophin action might interact...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28215206/iodine-intakes-and-status-in-irish-adults-is-there-cause-for-concern
#16
Breige A McNulty, Anne P Nugent, Janette Walton, Albert Flynn, Christina Tlustos, Michael J Gibney
I is an important mineral for health, required for the production of key thyroid hormones, which are essential for cellular metabolism, growth and physical development. Hence, adequate I is crucial at all stages of life, but imperative during pregnancy for fetal brain development and during a child's early life for neurodevelopment. Within Ireland, limited information exists on population I intakes and status. Therefore, the purposes of the present analysis were to estimate dietary I intakes and to analyse urinary iodine (UI) status using the cross-sectional National Adult Nutrition Survey 2008-2010 and the most recent Irish Total Diet Study...
February 20, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28214871/restraint-stress-during-pregnancy-rapidly-raises-kynurenic-acid-levels-in-mouse-placenta-and-fetal-brain
#17
Francesca M Notarangelo, Robert Schwarcz
Stressful events during pregnancy adversely affect brain development and may increase the risk of psychiatric disorders later in life. Early changes in the kynurenine (KYN) pathway (KP) of tryptophan (TRP) degradation, which contains several neuroactive metabolites, including kynurenic acid (KYNA), 3-hydroxykynurenine (3-HK), and quinolinic acid (QUIN), may constitute a molecular link between prenatal stress and delayed pathological consequences. To begin testing this hypothesis experimentally, we examined the effects of a 2-h restraint stress on KP metabolism in pregnant FVB/N mice on gestational day 17...
February 18, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28214848/human-birth-weight-and-reproductive-immunology-testing-for-interactions-between-maternal-and-offspring-kir-and-hla-c-genes
#18
Michelle M Clark, Olympe Chazara, Eric M Sobel, Håkon K Gjessing, Per Magnus, Ashley Moffett, Janet S Sinsheimer
BACKGROUND/AIMS: Maternal and offspring cell contact at the site of placentation presents a plausible setting for maternal-fetal genotype (MFG) interactions affecting fetal growth. We test hypotheses regarding killer cell immunoglobulin-like receptor (KIR) and HLA-C MFG effects on human birth weight by extending the quantitative MFG (QMFG) test. METHODS: Until recently, association testing for MFG interactions had limited applications. To improve the ability to test for these interactions, we developed the extended QMFG test, a linear mixed-effect model that can use multi-locus genotype data from families...
February 18, 2017: Human Heredity
https://www.readbyqxmd.com/read/28213879/arthrogryposis-multiplex-congenita-classification-diagnosis-perioperative-care-and-anesthesia
#19
REVIEW
Lulu Ma, Xuerong Yu
Arthrogryposis multiplex congenita (AMC) is a rare disorder characterized by non-progressive, multiple contractures. In addition to affected extremities, patients may also present microstomia, decreased temporomandibular joint mobility. Although the etiology of AMC is unclear, any factor that decreases fetal movement is responsible for AMC. Thus, accurate diagnosis and classification are crucial to the appropriate treatment of AMC. The development of ultrasound technology has enabled prenatal diagnosis. Very early treatment is favorable, and multidisciplinary treatment is necessary to improve the function of AMC patients...
February 17, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28213465/epithelial-morphogenesis-during-liver-development
#20
Naoki Tanimizu, Toshihiro Mitaka
Tissue stem/progenitor cells supply multiple types of epithelial cells that eventually acquire specialized functions during organ development. In addition, three-dimensional (3D) tissue structures need to be established for organs to perform their physiological functions. The liver contains two types of epithelial cells, namely, hepatocytes and cholangiocytes, which are derived from hepatoblasts, fetal liver stem/progenitor cells (LPCs), in mid-gestation. Hepatocytes performing many metabolic reactions form cord-like structures, whereas cholangiocytes, biliary epithelial cells, form tubular structures called intrahepatic bile ducts...
February 17, 2017: Cold Spring Harbor Perspectives in Biology
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