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Fetal reduction

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https://www.readbyqxmd.com/read/28436588/reduced-erg-dosage-impairs-survival-of-hematopoietic-stem-and-progenitor-cells
#1
Ying Xie, Mia Lee Koch, Xin Zhang, Melanie J Hamblen, Frank J Godinho, Yuko Fujiwara, Huafeng Xie, Jan-Henning Klusmann, Stuart H Orkin, Zhe Li
ERG, an ETS family transcription factor frequently overexpressed in human leukemia, has been implicated as a key regulator of hematopoietic stem cells. However, how ERG controls normal hematopoiesis, particularly at the stem and progenitor cell level, and how it contributes to leukemogenesis remain incompletely understood. Using homologous recombination, we generated an Erg knockdown allele (Erg(kd) ) in which Erg expression can be conditionally restored by Cre recombinase. Erg(kd/kd) animals die at E10.5-E11...
April 24, 2017: Stem Cells
https://www.readbyqxmd.com/read/28434652/multifetal-reduction-of-triplets-to-twins-compared-with-non-reduced-twins-a-meta-analysis
#2
Yaniv Zipori, Jigal Haas, Howard Berger, Eran Barzilay
The current systematic review and meta-analysis evaluates the perinatal outcomes in twin pregnancies following multifetal pregnancy reduction (MPR) compared with non-reduced twins. We considered all studies comparing perinatal outcomes of twin pregnancies following MPR to non-reduced twin pregnancies. Our search yielded 639 publications, of which 91 were assessed for eligibility. A total of 22 studies met our inclusion criteria. Overall, fetal reduction of triplets to twins resulted in comparable perinatal outcomes to non-reduced twins with regards to gestational age and birthweight at delivery, pregnancy loss prior to 24 weeks, as well as the development of gestational diabetes and hypertensive disorders of pregnancy...
April 10, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28432903/the-decidua-of-preeclamptic-like-bph-5-mice-exhibits-an-exaggerated-inflammatory-response-during-early-pregnancy
#3
C Y Heyward, J L Sones, H E Lob, L C Yuen, K E Abbott, W Huang, Z R Begun, S D Butler, A August, C A Leifer, R L Davisson
Preeclampsia is a devastating complication of pregnancy characterized by late-gestation hypertension and proteinuria. Because the only definitive treatment is delivery of the fetus and placenta, preeclampsia contributes to increased morbidity and mortality of both mother and fetus. The BPH/5 mouse model, which spontaneously develops a syndrome strikingly similar to preeclampsia, displays excessive inflammation and suppression of inflammation improves pregnancy outcomes. During early pregnancy, decidual macrophages play an important role in promoting maternal tolerance to fetal antigens and regulating tissue remodeling, two functions that are critical for normal placental development...
April 10, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28432657/in-vitro-assay-for-measuring-real-time-topotecan-release-from-liposomes-release-kinetics-and-cellular-internalization
#4
Roger Gilabert-Oriol, Lina Chernov, Malathi Anantha, Wieslawa H Dragowska, Marcel B Bally
Topotecan is a drug that is under investigation for the treatment of neuroblastoma and has been encapsulated into liposomes to improve its therapeutic efficacy. However, liposomal formulations still need to be optimized for drug retention and new techniques to measure drug release are required to better understand this process. Here, a novel in vitro method based on fluorescence de-quenching and an automated microscopy imaging platform were developed for monitoring, in real time, the release of topotecan from a liposomal formulation...
April 21, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28432216/embryonic-cholecystitis-and-defective-gallbladder-contraction-in-the-sox17-haploinsufficient-model-of-biliary-atresia
#5
Hiroki Higashiyama, Aisa Ozawa, Hiroyuki Sumitomo, Mami Uemura, Ko Fujino, Hitomi Igarashi, Kenya Imaimatsu, Naoki Tsunekawa, Yoshikazu Hirate, Masamichi Kurohmaru, Yukio Saijoh, Masami Kanai-Azuma, Yoshiakira Kanai
The gallbladder excretes cytotoxic bile acids to the duodenum through the cystic duct and common bile duct system. Sox17 haploinsufficiency causes the biliary atresia-like phenotypes and hepatitis in late organogenesis mouse embryos. However, the molecular and cellular mechanisms in the Sox17-haploinsufficient gallbladder and liver in the etiology of biliary atresia remain unclear. In this study, transcriptomic analyses revealed the early onset of cholecystitis in the Sox17(+/-) embryos, together with the appearance of ectopic cystic duct-like epithelia in their gallbladders...
April 21, 2017: Development
https://www.readbyqxmd.com/read/28429366/analysis-of-transcriptional-activities-of-angiogenic-biomarkers-during-intrauterine-complications-leading-to-preterm-birth
#6
M Rabajdová, R Dudič, P Urban, V Dudičová, P Urdzík, M Mareková
OBJECTIVE: Pre-eclampsia, growth retardation and preterm delivery are the most common reasons leading to increased maternal and perinatal mortality. The increased expression of hypoxia induced factors, such as HIF-1, triggers the overexpression of anti-angiogenic genes. The aim of this study was to determine the transcriptional activity of individual pro- and anti-angiogenic markers (VEGF, HIF-1, sEng, Flt-1, PlGF-1) in maternal blood samples from patients with spontaneous preterm labor, preterm labor in combination with pre-eclampsia and fetal growth restriction in comparison with physiologically terminated pregnancies...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28418814/ionizing-radiation-exposure-during-pregnancy-effects-on-postnatal-development-and-life
#7
Shayenthiran Sreetharan, Christopher Thome, Sujeenthar Tharmalingam, Devon E Jones, Adomas V Kulesza, Neelam Khaper, Simon J Lees, Joanna Y Wilson, Douglas R Boreham, T C Tai
Reliable human data on the effects of prenatal exposure to ionizing radiation are largely based on high-dose exposures. Exposure to low doses may produce effects that are not easily observable at birth, and may persist over the course of the offspring's postnatal life. This is important when considering fetal programing, a phenomenon characterized by changes in offspring phenotype due to a stress experienced in utero. In this review, we briefly summarize the known effects of both high- and low-dose exposure to ionizing radiation during pregnancy in humans...
April 18, 2017: Radiation Research
https://www.readbyqxmd.com/read/28414519/effect-of-a-food-supplement-containing-l-methionine-on-urinary-tract-infections-in-pregnancy-a-prospective-multicenter-observational-study
#8
Mario Passaro, Giampaolo Mainini, Francesco Ambrosio, Raimondo Sgambato, Giancarlo Balbi
OBJECTIVE: Adjuvants or alternatives to antibiotics in urinary tract infections (UTIs) during pregnancy seem advisable because of possible fetal stress. The present study assessed the effectiveness of a food supplement containing L-methionine and Hibiscus sabdariffa L. and Boswellia serrata Roxb. extracts as a treatment for symptomatic UTIs in pregnancy. DESIGN: Pregnant patients with symptomatic cystitis were screened for UTIs in three different clinical centers...
April 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28408374/expression-of-biglycan-in-first-trimester-chorionic-villous-sampling-placental-samples-and-altered-function-in-telomerase-immortalized-microvascular-endothelial-cells
#9
Amy Chui, Tilini Gunatillake, Shaun P Brennecke, Vera Ignjatovic, Paul T Monagle, John M Whitelock, Dagmar E van Zanten, Jasper Eijsink, Yao Wang, James Deane, Anthony J Borg, Janet Stevenson, Jan Jaap Erwich, Joanne M Said, Padma Murthi
OBJECTIVE: Biglycan (BGN) has reduced expression in placentae from pregnancies complicated by fetal growth restriction (FGR). We used first trimester placental samples from pregnancies with later small for gestational age (SGA) infants as a surrogate for FGR. The functional consequences of reduced BGN and the downstream targets of BGN were determined. Furthermore, the expression of targets was validated in primary placental endothelial cells isolated from FGR or control pregnancies. APPROACH AND RESULTS: BGN expression was determined using real-time polymerase chain reaction in placental tissues collected during chorionic villous sampling performed at 10 to 12 weeks' gestation from pregnancies that had known clinical outcomes, including SGA...
April 13, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28407838/-effects-of-maternal-folate-deficiency-on-the-methylation-of-insulin-like-growth-factor-system-in-the-offspring-rats
#10
Meng-Meng Wu, Fan Yang, Yi Qu, De-Zhi Mu
OBJECTIVE: To study the effects of maternal folate deficiency on fetal growth and development and the methylation profiles of insulin-like growth factor system in the offspring rats. METHODS: Twenty-two Sprague-Dawley female rats were randomly assigned to two groups: a folate deficient group (n=12) and a control group (n=10). They were fed with folate deficient and normal diet respectively. Dams were mated after 2 weeks of feeding. Eight female rats from each group were pregnant...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28403891/foley-catheter-for-cervical-priming-in-induction-of-labour-at-university-obstetrics-unit-colombo-sri-lanka-a-clinical-audit-with-a-patient-satisfaction-survey
#11
M Patabendige, A Jayawardane
BACKGROUND: Intracervical insertion of a Foley catheter (FC) has shown to be a safe, effective and relatively feasible mechanical method of cervical priming in induction of labour (IOL). We evaluated indications, effectiveness, patient acceptability and outcomes of FC use in IOL adhering to the ward protocol in our unit. METHODS: A clinical audit with a patient satisfaction survey conducted between July and September 2013 in University Obstetric Unit, Colombo, Sri Lanka...
April 12, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28402512/defective-trophoblast-invasion-underlies-fetal-growth-restriction-and-pre-eclampsia-like-symptoms-in-the-stroke-prone-spontaneously-hypertensive-rat
#12
G Barrientos, M Pussetto, M Rose, A C Staff, S M Blois, J E Toblli
STUDY QUESTION: What is the impact of chronic hypertension on placental development, fetal growth and maternal outcome in the stroke-prone spontaneously hypertensive rat (SHRSP)? SUMMARY ANSWER: SHRSP showed an impaired remodeling of the spiral arteries and abnormal pattern of trophoblast invasion during placentation, which were associated with subsequent maternal glomerular injury and increased baseline hypertension as well as placental insufficiency and asymmetric fetal growth restriction...
April 11, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28398685/parvovirus-b19-infection-during-pregnancy-and-risks-to-the-fetus
#13
REVIEW
Asher Ornoy, Zivanit Ergaz
Parvovirus B19 infects 1 to 5% of pregnant women, generally with normal pregnancy outcomes. During epidemics, the rate of infection is higher. Major congenital anomalies among offspring of infected mothers are rare, as the virus does not appear to be a significant teratogen. However, parvovirus B19 infection may cause significant fetal damage, and in rare cases, brain anomalies and neurodevelopmental insults, especially if infection occurs in the first 20 weeks of pregnancy. Parvovirus B19 is also an important cause of fetal loss, especially in the second half of pregnancy when spontaneous fetal loss from other causes is relatively rare...
March 15, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28397385/reduced-physical-activity-in-pregnancy-reduces-maternal-vascular-resistance-and-improves-fetal-growth
#14
Barbara Vasapollo, Damiano Lo Presti, Giulia Gagliardi, Daniele Farsetti, Grazia Maria Tiralongo, Ilaria Pisani, Gian Paolo Novelli, Herbert Valensise
OBJECTIVE: To test the efficacy of maternal activity restriction in normotensive patients with TVR in the upper limits, evaluating the effect on fetal growth. METHODS: Thirty women were enrolled between 27 and 29 weeks gestation. All patients met the following criteria: normal blood pressure values before and during pregnancy, TVR between 1300 and 1400 dyne sec(-1) cm(-5) , normal fetal Doppler parameters at enrolment, abdominal circumference between the 10th and 25th centile...
April 11, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28370022/the-public-stigma-of-birth-mothers-of-children-with-fetal-alcohol-spectrum-disorders
#15
Patrick W Corrigan, Juana Lorena Lara, Binoy Biren Shah, Kathleen T Mitchell, Diana Simmes, Kenneth L Jones
BACKGROUND: Stigma affects not only the person with a stigmatizing condition such as fetal alcohol spectrum disorders (FASD), but also their family members. This study examined whether there are stigmatizing attitudes about biological mothers of children with FASD in a crowdsourced sample. METHODS: Three hundred and eighty-nine participants were asked to rate levels of difference, disdain, and responsibility on 4 conditions: serious mental illness (MI), substance use disorder (SUD), jail experience, and FASD...
March 30, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28366868/recent-advances-in-the-study-of-11%C3%AE-hydroxysteroid-dehydrogenase-type-2-11%C3%AE-hsd2-inhibitors
#16
REVIEW
Chunchun Zhou, Fan Ye, He Wu, Hui Ye, Quanxu Chen
11β-Hydroxysteroid dehydrogenase (11β-HSD), which interconverts hormonally active cortisol and inactive cortisone in multiple human tissues, has two distinct isoforms named 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) and 11β-hydroxysteroid dehydrogenase 2 (11β-HSD2). 11β-HSD2 is an NAD(+)-dependent oxidase which lowers cortisol by converting it to cortisone while 11β-HSD1 mainly catalyzes the reduction which converts cortisone into cortisol. Selective inhibition of 11β-HSD2 is generally detrimental to health because the accumulation of cortisol can cause metabolic symptoms such as apparent mineralocorticoid excess (AME), fetal developmental defects and lower testosterone levels in males...
March 21, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28363609/maternal-fetal-monitoring-of-opioid-exposed-pregnancies-analysis-of-a-pilot-community-based-protocol-and-review-of-the-literature
#17
Gareth Ryan, Joe Dooley, Rory Windrim, Megan Bollinger, Lianne Gerber Finn, Len Kelly
OBJECTIVES: To describe/analyse a novel, community-based prenatal monitoring protocol for opioid-exposed pregnancies developed by our centre in 2014 to optimize prenatal care for this population. A literature review of published monitoring protocols for this population is also presented. METHODS: Retrospective comparison of pre-protocol (n = 215) and post-protocol (n = 251) cohorts. Medline and Embase were searched between 2000-2016 using MeSH terms: [fetal monitoring OR prenatal care] AND [opioid-related disorders OR substance-related disorders] in Medline and [fetal monitoring OR prenatal care] AND [opiate addiction OR substance abuse] in Embase, producing 518 results...
March 28, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28359096/early-maternal-thyroid-function-during-gestation-is-associated-with-fetal-growth-particularly-in-male-newborns
#18
Tanja G M Vrijkotte, E Jessica Hrudey, Marcel B Twickler
Background: Intrauterine growth patterns are influenced by maternal thyroid function during gestation and by fetal sex. It is unknown, however, whether the relationships between maternal thyrotropin (TSH) and free thyroxine (fT4) levels in early pregnancy and fetal growth outcomes are modified by fetal sex. Design: Data were obtained from a community-based cohort study of pregnant women living in Amsterdam (Amsterdam Born Children and Their Development study). TSH and fT4 levels were determined during the first prenatal screening at median 13 weeks (interquartile range, 12 to 14)...
March 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28358362/deletion-of-stk40-impairs-definitive-erythropoiesis-in-the-mouse-fetal-liver
#19
Lina Wang, Hongyao Yu, Hui Cheng, Ke He, Zhuoqing Fang, Laixiang Ge, Tao Cheng, Ying Jin
The serine threonine kinase Stk40 has been shown to involve in mouse embryonic stem cell differentiation, pulmonary maturation and adipocyte differentiation. Here we report that targeted deletion of Stk40 leads to fetal liver hypoplasia and anemia in the mouse embryo. The reduction of erythrocytes in the fetal liver is accompanied by increased apoptosis and compromised erythroid maturation. Stk40(-/-) fetal liver cells have significantly reduced colony-forming units (CFUs) capable of erythroid differentiation, including burst forming unit-erythroid, CFU-erythroid (CFU-E), and CFU-granulocyte, erythrocyte, megakaryocyte and macrophage, but not CFU-granulocyte/macrophages...
March 30, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28355686/-retrospective-analysis-of-outcomes-of-selectively-or-spontaneously-reduced-multiple-pregnancies-out-of-6-917-in-vitro-fertilization-embryo-transfer-pregnancy-cycles
#20
Q L Chen, H Ye, X Y Ding, X L Shen, G N Huang
Objective: To analyze the effects of fetal reduction in early pregnancy on obstetric and neonatal outcomes of spontaneously or selectively reduced multiple pregnancies produced by in vitro fertilization-embryo transfer (IVF-ET). Methods: Retrospective study of 6 917 clinical pregnancies from IVF-ET cycles, including 754 multiple pregnancies divided into two groups according to the remaining fetus number: reduced singleton group (n=599) and reduced twin group (n=155); and maternal and neonatal outcomes of two groups were compared to primary singleton group (n=3 589) and primary twin group (n=2 574)...
March 25, 2017: Zhonghua Fu Chan Ke za Zhi
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