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https://www.readbyqxmd.com/read/29149698/ectrodactyly-in-a-chinese-patient-born-to-a-mother-with-neuromyelitis-optica-spectrum-disorder
#1
Yanyu Chang, Yaqing Shu, Xiaobo Sun, Chengfang Xu, Dan He, Ling Fang, Chen Chen, Xueqiang Hu, Allan Kermode, Wei Qiu
NMOSD develops primarily in women of childbearing age, and several previous studies have shown that the disorder may increase the risk of miscarriage. However, there are no reports, to our knowledge, of fetal malformation, other than neonatal hydrocephalus, related to NMOSD. We report a 30-year-old woman who experienced recurrent neuritis and who was seropositive for AQP4-IgG. She became pregnant, and the fetus was found to have ectrodactyly. Histological analysis of the placenta showed moderate inflammatory infiltration; however, whether fetal malformation in NMOSD is related to inflammation and AQP4-IgG remains to be determined...
November 8, 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29142905/p-cadherin-cdh3-is-overexpressed-in-colorectal-tumors-and-has-potential-as-a-serum-marker-for-colorectal-cancer-monitoring
#2
H M C Shantha Kumara, Geoffrey A Bellini, Otavia L Caballero, Sonali A C Herath, Tao Su, Aqeel Ahmed, Linda Njoh, Vesna Cekic, Richard L Whelan
Introduction: Placental-Cadherin (CDH3) is a cell adhesion molecule vital to cellular localization and tissue integrity. It is highly expressed in the placenta (PLC)and is overexpressed by many types of cancer. P-cadherin levels in colorectal cancer (CRC) remains poorly characterized. This study's purpose was to determine P-cadherin expression in CRC and normal tissues and to assess plasma CDH3 levels in order to determine the relationship, if any, between cancer stage, P-cadherin expression and plasma CDH3 levels...
September 2017: Oncoscience
https://www.readbyqxmd.com/read/29136193/early-first-trimester-uteroplacental-flow-and-the-progressive-disintegration-of-spiral-artery-plugs-new-insights-from-contrast-enhanced-ultrasound-and-tissue-histopathology
#3
V H J Roberts, T K Morgan, P Bednarek, M Morita, G J Burton, J O Lo, A E Frias
STUDY QUESTION: Does the use of a vascular contrast agent facilitate earlier detection of maternal flow to the placental intervillous space (IVS) in the first trimester of pregnancy? SUMMARY ANSWER: Microvascular filling of the IVS was demonstrated by contrast-enhanced ultrasound from 6 weeks of gestation onwards, earlier than previously believed. WHAT IS KNOWN ALREADY: During placental establishment and remodeling of maternal spiral arteries, endovascular trophoblast cells invade and accumulate in the lumen of these vessels to form 'trophoblast plugs'...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29135072/measuring-human-placental-blood-flow-with-multidelay-3d-grase-pseudocontinuous-arterial-spin-labeling-at-3t
#4
Xingfeng Shao, Dapeng Liu, Thomas Martin, Teresa Chanlaw, Sherin U Devaskar, Carla Janzen, Aisling M Murphy, Daniel Margolis, Kyunghyun Sung, Danny J J Wang
BACKGROUND: Placenta influences the health of both a woman and her fetus during pregnancy. Maternal blood supply to placenta can be measured noninvasively using arterial spin labeling (ASL). PURPOSE: To present a multidelay pseudocontinuous arterial spin labeling (pCASL) combined with a fast 3D inner-volume gradient- and spin-echo (GRASE) imaging technique to simultaneously measure placental blood flow (PBF) and arterial transit time (ATT), and to study PBF and ATT evolution with gestational age during the second trimester...
November 14, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29134477/difference-in-the-size-of-the-placenta-and-umbilical-cord-between-women-with-natural-pregnancy-and-those-with-ivf-pregnancy
#5
Atsushi Yanaihara, Shota Hatakeyama, Shirei Ohgi, Kenichirou Motomura, Ryoma Taniguchi, Aguri Hirano, Shin Takenaka, Takumi Yanaihara
PURPOSE: The purpose of this study was to compare the sizes of the placenta and umbilical cord in women with natural pregnancy versus those undergoing in vitro fertilization (IVF). METHODS: Overall, 1610 cases of uncomplicated single pregnancies with vaginal delivery at ≥ 37 weeks of gestation were included in this study. The patients were divided into two groups: natural pregnancy group (n = 1453) and IVF pregnancy not including intracytoplasmic sperm injection (ICSI) treatment (n = 157)...
November 14, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29130675/-severe-adverse-pregnancy-outcomes-in-placenta-previa-and-prior-cesarean-delivery
#6
Mi Zhou, Meng Chen, Li Zhang, Guo-Lin He, Lei He, Qiang Wei, Tao Li, Xing-Hui Liu
OBJECTIVE: To investigate the severe adverse pregnancy outcomes in pregnancies with placenta previa and prior cesarean delivery and its risk factors. METHODS: This retrospective casecontrol study reviewed all pregnancies with placenta previa and prior cesarean delivery delivered by repeat cesarean section in our institution between January 2005 and June 2015,and investigated the incidence of severe adverse pregnancy outcome. A composite of severe adverse pregnancy outcomes (including transfusion of 10 units or more red blood cells,maternal ICU admission,unanticipated injuries,repeat operation,hysterectomy,and maternal death) and other maternal and neonatal outcomes were described...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29128634/vitamin-d-receptor-vdr-polymorphisms-are-associated-to-spontaneous-preterm-birth-and-maternal-aspects
#7
N R Javorski, C A D Lima, L V C Silva, S Crovella, J de Azêvedo Silva
Preterm birth (PTB) is featured by less than 37weeks of gestational age or fewer than 259days since the first day from the last menstrual period. Complications of PTB are the major cause of neonatal deaths, several factors are linked to PTB increased risk including immunological and genetics. Vitamin D plays an important role in immune response modulation and its action occurs through the vitamin D receptor (VDR), which recently has been described as overexpressed in human placenta during the pregnancy. Herein we assessed two single nucleotide polymorphisms (SNPs) FokI (rs2228570 A>G) and Cdx-2 (rs11568820 T>C), within VDR, using TaqMan fluorogenic probes, and differential susceptibility to SPTB...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29128157/prophylactic-internal-iliac-artery-occlusion-balloon-placement-to-reduce-operative-blood-loss-in-patients-with-invasive-placenta
#8
Andrew C Picel, Brent Wolford, Rory L Cochran, Gladys A Ramos, Anne C Roberts
PURPOSE: To evaluate efficacy and safety of prophylactic internal iliac occlusion balloon placement before cesarean hysterectomy for invasive placenta. MATERIAL AND METHODS: A retrospective analysis was performed of patients with invasive placenta treated with and without occlusion balloon placement. Preoperative occlusion balloons were placed in 90 patients; 61 patients were treated without balloon placement (control group). Baseline demographics, including patient age, gestational age at delivery, gravidity, parity, and number of previous cesarean sections, were not significantly different (P > ...
November 9, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29127557/dai-1-receptor-expression-in-placenta-in-earlyand-late-onset-preeclampsia
#9
N V Nizyaeva, G V Kulikova, M N Nagovitsyna, G V Khlestova, M N Yushina, O R Baev, A I Shchegolev
DAI-1 receptor (DNA-dependent activator of IFN-regulatory factors; DLM-1/ZBP-1) is an innate immunity cytoplasmic receptor of the DNA-recognition receptor class of antiviral immunity. DAI-1 expression reflects the severity of the inflammatory response that plays the key role in the pathogenesis of pregnancy complications. We studied DAI-1 receptor expression in the placental villi in early- and late-onset preeclampsia. In case of early-onset preeclampsia DAI-1 staining intensity was lower (p=0.01), and in case of late preeclampsia - significantly higher (p<0...
November 11, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29112458/review-detrimental-effects-of-alcohol-exposure-around-conception-putative-mechanisms
#10
Jacinta I Kalisch-Smith, Karen M Moritz
In western countries, alcohol consumption is widespread in women of reproductive age, and in binge quantities. These countries also continue to have high incidences of unplanned pregnancies, with women often reported to cease drinking after discovering their pregnancy. This suggests the early embryo may be highly exposed to the detrimental effects of alcohol during this periconceptional period. The periconception and pre-implantation windows which includes maturation of the oocyte, fertilisation and morphogenesis of the pre-implantation embryo, are particularly sensitive times of development...
November 7, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29108640/placental-abnormalities-associated-with-isolated-single-umbilical-artery-in-small-for-gestational-age-births
#11
Ashley N Battarbee, Anna Palatnik, Linda M Ernst, William A Grobman
BACKGROUND: Previous studies have shown that pregnancies complicated by placentas with an isolated single umbilical artery (iSUA) are at increased risk for small-for-gestational-age (SGA) births. The etiology of SGA in this population, however, remains unknown. OBJECTIVE: The primary objective of this study was to evaluate whether placental abnormalities in pregnancies with SGA births differ according to the presence of iSUA. STUDY DESIGN: This was an observational study of all women with pathologic examination of the placenta after delivering a non-anomalous, singleton SGA neonate between January 2009 and August 2015...
November 2017: Placenta
https://www.readbyqxmd.com/read/29108638/telomere-length-heterogeneity-in-placenta-revealed-with-high-resolution-telomere-length-analysis
#12
I Garcia-Martin, A B Janssen, R E Jones, J W Grimstead, R J A Penketh, D M Baird, R M John
INTRODUCTION: Telomeres, are composed of tandem repeat sequences located at the ends of chromosomes and are required to maintain genomic stability. Telomeres can become shorter due to cell division and specific lifestyle factors. Critically shortened telomeres are linked to cellular dysfunction, senescence and aging. A number of studies have used low resolution techniques to assess telomere length in the placenta. In this study, we applied Single Telomere Length Analysis (STELA) which provides high-resolution chromosome specific telomere length profiles to ask whether we could obtain more detailed information on the length of individual telomeres in the placenta...
November 2017: Placenta
https://www.readbyqxmd.com/read/29108468/senescence-and-telomere-homeostasis-might-be-involved-in-placenta-percreta-preliminary-investigation
#13
Keren Tzadikevitch Geffen, Hilah Gal, Ifat Vainer, Ofer Markovitch, Aliza Amiel, Valery Krizhanovsky, Tal Biron-Shental
OBJECTIVE: Placenta percreta (PP) is an abnormal condition of trophoblast maturation and terminal differentiation through the uterine wall. We opted to study telomere homeostasis and senescence expression in trophoblasts from PP, the most severe subgroup of placenta accreta. STUDY DESIGN: Paraffin-embedded placental biopsies from pregnancies with percreta and normal placentation, matched by gestational age at delivery, were assessed for telomere length, aggregates, and senescence-associated heterochromatin foci using quantitative fluorescence in situ hybridization...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29108048/amino-acid-composition-of-fetus-placenta-and-uterus-in-gilts-throughout-gestation
#14
Y D Jang, Y L Ma, R L Payne, M D Lindemann
An accurate understanding of the AA composition of the products of conception is needed to accurately model dietary AA needs of pregnant swine. To determine AA composition in fetal pigs, the placenta, and the uterus at various stages of gestation, samples from a total of 65 gilts slaughtered at assigned days of gestation (d 43, 58, 73, 91, 101, and 108) were used. The AA concentrations (g/kg each wet tissue) in the fetus, placenta, or uterus increased as gestation progressed, with major increases occurring from d 73 to 108 of gestation ( < 0...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29107591/naked-mole-rat-induced-pluripotent-stem-cells-and-their-contribution-to-interspecific-chimera
#15
Sang-Goo Lee, Aleksei E Mikhalchenko, Sun Hee Yim, Alexei V Lobanov, Jin-Kyu Park, Kwang-Hwan Choi, Roderick T Bronson, Chang-Kyu Lee, Thomas J Park, Vadim N Gladyshev
Naked mole rats (NMRs) are exceptionally long-lived, cancer-resistant rodents. Identifying the defining characteristics of these traits may shed light on aging and cancer mechanisms. Here, we report the generation of induced pluripotent stem cells (iPSCs) from NMR fibroblasts and their contribution to mouse-NMR chimeric embryos. Efficient reprogramming could be observed under N2B27+2i conditions. The iPSCs displayed a characteristic morphology, expressed pluripotent markers, formed embryoid bodies, and showed typical differentiation patterns...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29103344/maternal-and-neonatal-outcomes-among-scheduled-versus-unscheduled-deliveries-in-women-with-prenatally-diagnosed-pathologically-proven-placenta-accreta
#16
Kate E Pettit, Megan L Stephenson, Yen N Truong, Dana Henry, Aisling Murphy, Lena Kim, Nancy Field, Deborah A Wing, Gladys A Ramos
OBJECTIVE: To evaluate maternal and neonatal outcomes among scheduled versus unscheduled deliveries in cases of prenatally diagnosed, pathologically proven placenta accreta. STUDY DESIGN: Retrospective cohort of placenta accreta cases delivered in five University of California hospitals. RESULTS: Of 151 cases of histopathologically proven placenta accreta, 82% were prenatally diagnosed. Sixty-seven percent of women underwent scheduled deliveries and 33% were unscheduled...
November 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29103237/inflammatory-response-in-preterm-newborns-born-after-prolonged-premature-rupture-of-membranes-is-there-a-correlation-with-placental-histological-findings
#17
Neri Katz, Letizia Schreiber, Anat Oron, Sarel Halachmi, David Kohelet
BACKGROUND: Preterm birth is the leading cause of morbidity and mortality among neonates in the United States. Early recognition of sepsis in this population is a challenging task since overt clinical signs can be difficult to determine. C-reactive protein (CRP), one of the most frequently non-specific used laboratory test, can indirectly aid the diagnosis of neonatal sepsis. OBJECTIVES: To evaluate the relationship between histological findings in the placenta of preterm newborns born after prolonged rupture of membranes, CRP levels, and blood cultures...
October 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29100182/transplacental-transfer-characteristics-of-organochlorine-pesticides-in-paired-maternal-and-cord-sera-and-placentas-and-possible-influencing-factors
#18
Xiaolan Zhang, Xia Wu, Bingli Lei, Ye Jing, Zi'an Jiang, Xinyu Zhang, Xiangming Fang, Yingxin Yu
Organochlorine pesticides (OCPs), including dichlorodiphenyltrichloroethane (DDT) and its metabolites [dichlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane], hexachlorocyclohexanes (HCHs), and hexachlorobenzene (HCB), are widely detected in humans despite the considerable decline in environmental concentrations. To understand the placental transfer of OCPs and the possible maternal influence on them, we measured the concentrations of DDTs, HCHs, and HCB in 102 paired samples of maternal and cord sera, and placentas collected in Shanghai, China...
October 31, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29096888/fetal-surgical-repair-with-placenta-derived-mesenchymal-stromal-cell-engineered-patch-in-a-rodent-model-of-myelomeningocele
#19
Y Julia Chen, Karen Chung, Christopher Pivetti, Lee Lankford, Sandra K Kabagambe, Melissa Vanover, James Becker, Chelsey Lee, Josephine Tsang, Aijun Wang, Diana L Farmer
PURPOSE: The purpose of this study is to determine the feasibility of fetal surgical repair of myelomeningocele (MMC) in a rodent model using human placental mesenchymal stromal cells (PMSCs) seeded onto extracellular matrix (ECM) and to characterize the resulting changes in spinal cord tissue. METHODS: Fetal rodents with retinoic acid (RA) induced MMC underwent surgical repair of the MMC defect using an ECM patch on embryonic age (EA) 19 and were collected via caesarean section on EA 21...
October 12, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29096567/risk-factors-for-necrotizing-enterocolitis-in-very-preterm-infants-a-case-control-study-in-southwest-china
#20
Ling-Ping Zhang, Xiao-Ping Lei, Li-Juan Luo, Wen-Bin Dong
OBJECTIVE: The objective of this study is to investigate perinatal risk factors for necrotizing enterocolitis (NEC) in very preterm infants. METHODS: This retrospective study included all preterm infants with a gestational age <32 weeks attending our institution from 2013 to 2016. The NEC group comprised patients with NEC enrolled according to the inclusion criteria. Controls were selected from the database and were matched for gender, gestational age, and birth weight...
November 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
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