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https://www.readbyqxmd.com/read/27922068/changes-in-retinal-nerve-fiber-layer-thickness-after-multiple-injections-of-novel-vegf-decoy-receptor-conbercept-for-various-retinal-diseases
#1
Zhihua Zhang, Xiaolu Yang, Huiyi Jin, Yuan Qu, Yuan Zhang, Kun Liu, Xun Xu
Conbercept is a recombinant fusion protein with high affinity for all vascular endothelial growth factor isoforms and placental growth factor. The repeated intravitreal injection of conbercept may cause intraocular pressure (IOP) fluctuations and long-term suppression of neurotrophic cytokines, which could lead to retinal nerve fiber layer (RNFL) damage. This retrospective fellow-eye controlled study included 98 eyes of 49 patients. The changes in IOP and RNFL thickness as well as the correlation between RNFL changes and associated factors were evaluated...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27920724/insulin-induces-relaxation-and-decreases-hydrogen-peroxide-induced-vasoconstriction-in-human-placental-vascular-bed-in-a-mechanism-mediated-by-calcium-activated-potassium-channels-and-l-arginine-nitric-oxide-pathways
#2
Lissette Cabrera, Andrea Saavedra, Susana Rojas, Marcela Cid, Cristina Valenzuela, David Gallegos, Pamela Careaga, Emerita Basualto, Astrid Haensgen, Eduardo Peña, Coralia Rivas, Juan Carlos Vera, Victoria Gallardo, Leandro Zúñiga, Carlos Escudero, Luis Sobrevia, Mark Wareing, Marcelo González
HIGHLIGHTS Short-term incubation with insulin increases the L-arginine transport in HUVECs.Short-term incubation with insulin increases the NO synthesis in HUVECs.Insulin induces relaxation in human placental vascular bed.Insulin attenuates the constriction induced by hydrogen peroxide in human placenta.The relaxation induced by insulin is dependent on BKCa channels activity in human placenta. Insulin induces relaxation in umbilical veins, increasing the expression of human amino acid transporter 1 (hCAT-1) and nitric oxide synthesis (NO) in human umbilical vein endothelial cells (HUVECs)...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27918727/the-current-state-of-reproductive-biology-research-in-australia-and-new-zealand-core-themes-from-the-society-for-reproductive-biology-annual-meeting-2016
#3
L K Akison, P H Andraweera, M J Bertoldo, H M Brown, J S M Cuffe, T Fullston, O Holland, J E Schjenken
Because reproduction is essential for all life, it is central to our understanding of all aspects of biology. The Society for Reproductive Biology (SRB) 2016 conference held on the Gold Coast (Qld, Australia) displayed the current breadth of reproductive research in Australia and New Zealand, with additional insights from world leaders in the field. This conference review provides a focused summary of the key questions, emerging ideas and novel technologies that were presented in the symposia. Presented research demonstrated key advances in how stem cell biology may allow us to better understand pluripotency, as well as how environmental and lifestyle factors, such as circadian disruption, smoking, alcohol and diet, affect gametogenesis, embryo implantation, placental function and reproductive capacity...
December 6, 2016: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/27918253/placental-growth-factor-alone-or-in-combination-with-soluble-fms-like-tyrosine-kinase-1-as-an-aid-to-the-assessment-of-women-with-suspected-pre-eclampsia-systematic-review-and-economic-analysis
#4
Geoff K Frampton, Jeremy Jones, Micah Rose, Liz Payne
BACKGROUND: Pre-eclampsia (PE) prediction based on blood pressure, presence of protein in the urine, symptoms and laboratory test abnormalities can result in false-positive diagnoses. This may lead to unnecessary antenatal admissions and preterm delivery. Blood tests that measure placental growth factor (PlGF) or the ratio of soluble fms-like tyrosine kinase 1 (sFlt-1) to PlGF could aid prediction of PE if either were added to routine clinical assessment or used as a replacement for proteinuria testing...
November 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/27917469/association-of-dysfunctional-synapse-defective-1-syde1-with-restricted-fetal-growth-syde1-regulates-placental-cell-migration-and-invasion
#5
Hsiao-Fan Lo, Ching-Yen Tsai, Chie-Pein Chen, Liang-Jie Wang, Yun-Shien Lee, Chia-Yu Chen, Chung-Tiang Liang, Mei-Leng Cheong, Hungwen Chen
The transcription factor glial cells missing 1 (GCM1) regulates trophoblast differentiation and function during placentation. Decreased GCM1 expression is associated with preeclampsia, suggesting that abnormal expression of GCM1 target genes may contribute to the pathogenesis of pregnancy complications. Here we identified a novel GCM1 target gene, synapse defective 1 (SYDE1), which encodes a RhoGAP that is highly expressed in human placenta, and demonstrated that SYDE1 promotes cytoskeletal remodelling and cell migration and invasion...
December 5, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27916814/low-density-lipoprotein-receptor-contributes-to-%C3%AE-carotene-uptake-in-the-maternal-liver
#6
Varsha Shete, Brianna K Costabile, Youn-Kyung Kim, Loredana Quadro
Vitamin A regulates many essential mammalian biological processes, including embryonic development. β-carotene is the main source of vitamin A in the human diet. Once ingested, it is packaged into lipoproteins, predominantly low-density lipoproteins (LDL), and transported to different sites within the body, including the liver and developing tissues, where it can either be stored or metabolized to retinoids (vitamin A and its derivatives). The molecular mechanisms of β-carotene uptake by the liver or developing tissues remain elusive...
November 29, 2016: Nutrients
https://www.readbyqxmd.com/read/27916805/roles-of-microrna-across-prenatal-and-postnatal-periods
#7
REVIEW
Ilaria Floris, Jamie D Kraft, Illimar Altosaar
Communication between mother and offspring in mammals starts at implantation via the maternal-placental-fetal axis, and continues postpartum via milk targeted to the intestinal mucosa. MicroRNAs (miRNAs), short, noncoding single-stranded RNAs, of about 22 nucleotides in length, are actively involved in many developmental and physiological processes. Here we highlight the role of miRNA in the dynamic signaling that guides infant development, starting from implantation of conceptus and persisting through the prenatal and postnatal periods...
November 28, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27916232/neuroinflammation-in-intrauterine-growth-restriction
#8
REVIEW
Julie A Wixey, Kirat K Chand, Paul B Colditz, S Tracey Bjorkman
Disruption to the maternal environment during pregnancy from events such as hypoxia, stress, toxins, inflammation, and reduced placental blood flow can affect fetal development. Intrauterine growth restriction (IUGR) is commonly caused by chronic placental insufficiency, interrupting supply of oxygen and nutrients to the fetus resulting in abnormal fetal growth. IUGR is a major cause of perinatal morbidity and mortality, occurring in approximately 5-10% of pregnancies. The fetal brain is particularly vulnerable in IUGR and there is an increased risk of long-term neurological disorders including cerebral palsy, epilepsy, learning difficulties, behavioural difficulties and psychiatric diagnoses...
November 25, 2016: Placenta
https://www.readbyqxmd.com/read/27916068/-the-correlation-between-cerebral-mri-characteristics-of-posterior-reversible-encephalopathy-syndrome-and-serum-levels-of-plgf-seng-in-patients-with-pre-eclampsia
#9
K M Jiang, X Zhong, Y Tan, G C Liu, H Mai, S X Wu
Objective: To investigate the MRI characteristics of posterior reversible encephalopathy syndrome (PRES) in patients with pre-eclampsia(PE) and its correlation with serum placental growth factor (PlGF), soluble endoglin (sEng) and sEng/PlGF ratio. Methods: 34 patients with PE who were admitted to Guangdong Women and Children Hospital from September 2013 to March 2014 were studied retrospectively.13 cases had PRES and 21 cases had normal cerebral MRI. All patients underwent conventional MRI and DWI scanning...
November 25, 2016: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/27915495/placental-respiratory-chain-complex-activities-in-high-risk-pregnancies
#10
Mojtaba Beyramzadeh, Zeliha Gunnur Dikmen, Nergiz K Erturk, Zafer Selcuk Tuncer, Filiz Akbiyik
OBJECTIVES: Mitochondrial oxidative phosphorylation is the key energy source for placental functions and fetal growth. The purpose of this study was to investigate the function of placenta in high risk pregnancies by measuring mitochondrial respiratory chain complex (RCC) activities, and to evaluate the correlation between double test risk ratio and RCC activities. METHODS: The placenta samples were collected from 50 pregnant women. The controls consisted of 20 normal uncomplicated pregnancies and the study group (n = 30) consisted of preeclampsia (PE), intrauterin growth restriction (IUGR), advanced maternal age (AMA), twins and preterm deliveries...
December 5, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27915237/placental-morphology-in-fetal-alcohol-spectrum-disorders
#11
Marlene Tai, Anna Piskorski, Jennifer C W Kao, Lynn A Hess, Suzanne M de la Monte, Füsun Gündoğan
AIMS: Maternal alcohol drinking adversely affects pregnancy outcome. Although fetal health and development are highly dependent upon the integrity of placentation, little is known about placental morphology following gestational exposure to alcohol in humans. METHODS: In this clinical study, subjects were recruited between 2010 and 2013 from an outpatient substance abuse and mental health treatment center for women. Data collected included maternal age, substance abuse history, comorbidities, pregnancy outcomes, gestational age at delivery, birth weight and placental weight...
December 3, 2016: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/27915039/uterine-immune-profiling-for-increasing-live-birth-rate-a-one-to-one-matched-cohort-study
#12
Nathalie Lédée, Laura Prat-Ellenberg, Lucie Chevrier, Richard Balet, Cynthia Simon, Clarisse Lenoble, Elie El Irani, Dominique Bouret, Guy Cassuto, Dominique Vitoux, Katia Vezmar, Armand Bensussan, Gérard Chaouat, Marie Petitbarat
BACKGROUND: Embryo implantation remains the main limiting factor in IVF/ICSI program. Endometrial immune remodeling events begin before implantation and are a vital process for pregnancy, preparing future maternal immune tolerance and regulating the placentation process. METHODS: Between 2012 and 2014, 193 patients (analyzed group) enrolled in our IVF program benefitted of an endometrial immune profiling to determine if their uterus was immunologically ready to accept an embryo and, if not, the specific immune mechanisms involved...
November 24, 2016: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/27914986/identification-of-epigenetically-downregulated-tmem70-and-ube2e2-in-rat-liver-after-28-day-treatment-with-hepatocarcinogenic-thioacetamide-showing-gene-product-downregulation-in-hepatocellular-preneoplastic-and-neoplastic-lesions-produced-by-tumor-promotion
#13
Sayaka Mizukami, Atsunori Yafune, Yousuke Watanabe, Kota Nakajima, Meilan Jin, Toshinori Yoshida, Makoto Shibutani
The present study identified genes showing promoter region hypermethylation by CpG island microarrays in the liver of rats treated with hepatocarcinogen thioacetamide (TAA) for 28 days. Among 47 hypermethylated genes, Hist1h2aa, Tmem70, Ube2e2, and Slk were confirmed to show hypermethylation by methylation-specific polymerase chain reaction (PCR) and pyrosequencing analyses as well as downregulation of transcript levels by real-time reverse transcription-PCR analysis in the livers of rats treated with TAA. All gene products of the 4 selected genes showed decreased immunoreactivity forming negative liver cell foci in a subpopulation of glutathione S-transferase placental form (GST-P)(+) foci in TAA-promoted rat livers in a two-stage hepatocarcinogenesis model...
November 30, 2016: Toxicology Letters
https://www.readbyqxmd.com/read/27914214/antithrombin-improves-the-maternal-and-neonatal-outcomes-but-not-the-angiogenic-factors-in-extremely-growth-restricted-fetuses-at-28-weeks-of-gestation
#14
Midori Fujisaki, Ken Furuta, Masanao Ohhashi, Seishi Furukawa, Yuki Kodama, Yasuyuki Kawagoe, Hiroshi Sameshima, Tsuyomu Ikenoue
AIMS: Severe preterm fetal growth restriction (FGR) remote from term is problematic. We aimed to investigate the effect of maternally-administered antithrombin on maternal and neonatal outcomes. A prospective, one-arm, pilot study was performed in 14 women with severe FGR (≤5th centile) at <28 weeks of gestation, without hypertensive disorders. Maternal plasma concentrations of soluble Feline McDonough Sarcoma (FMS)-like trypsin kinase-1 (sFlt-1) and placental growth factor (PlGF) were measured and categorized into three groups: group 1; low sFlt-1 and high PlGF, group 2; moderate sFlt-1 and low PlGF, and group 3; high sFlt-1 and low PlGF...
December 3, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27913585/the-influence-of-placental-metabolism-on-fatty-acid-transfer-to-the-fetus
#15
Simone Perazzolo, Birgit Hirschmugl, Christian Wadsack, Gernot Desoye, Rohan M Lewis, Bram G Sengers
The factors determining Fatty acid transfer across the placenta are not fully understood. This study used a combined experimental and computational modelling approach to explore placental transfer of non-esterified fatty acids and identify rate-determining processes. The isolated perfused human placenta was used to study the uptake and transfer of [(13)C]-fatty acids and the release of endogenous fatty acids. Only 6.2 ± 0.8% of the maternal (13)C-fatty acids taken up by the placenta was delivered to the fetal circulation...
December 2, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27912091/genetic-ablation-of-axl-does-not-protect-human-neural-progenitor-cells-and-cerebral-organoids-from-zika-virus-infection
#16
Michael F Wells, Max R Salick, Ole Wiskow, Daniel J Ho, Kathleen A Worringer, Robert J Ihry, Sravya Kommineni, Bilada Bilican, Joseph R Klim, Ellen J Hill, Liam T Kane, Chaoyang Ye, Ajamete Kaykas, Kevin Eggan
Zika virus (ZIKV) can cross the placental barrier, resulting in infection of the fetal brain and neurological defects including microcephaly. The cellular tropism of ZIKV and the identity of attachment factors used by the virus to gain access to key cell types involved in pathogenesis are under intense investigation. Initial studies suggested that ZIKV preferentially targets neural progenitor cells (NPCs), providing an explanation for the developmental phenotypes observed in some pregnancies. The AXL protein has been nominated as a key attachment factor for ZIKV in several cell types including NPCs...
December 1, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27909693/unfractionated-and-low-molecular-weight-heparin-and-the-phosphodiesterase-inhibitors-ibmx-and-cilostazol-block-ex-vivo-equid-herpesvirus-type-1-induced-platelet-activation
#17
Tracy Stokol, Priscila B D Serpa, Muhammad N Zahid, Marjory B Brooks
Equid herpes virus type-1 (EHV-1) is a major pathogen of horses, causing abortion storms and outbreaks of herpes virus myeloencephalopathy. These clinical syndromes are partly attributed to ischemic injury from thrombosis in placental and spinal vessels. The mechanism of thrombosis in affected horses is unknown. We have previously shown that EHV-1 activates platelets through virus-associated tissue factor-initiated thrombin generation. Activated platelets participate in thrombus formation by providing a surface to localize coagulation factor complexes that amplify and propagate thrombin generation...
2016: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/27908601/corrigendum-to-a-pregnancy-with-discordant-fetal-and-placental-chromosome-18-aneuploidies-revealed-by-invasive-and-noninvasive-prenatal-diagnosis-reproductive-biomedicine-online-29-2014-136-139
#18
Chong Chen, David S Cram, Fanni Xie, Ping Wang, Xueqin Xu, Huanzheng Li, Zhuo Song, Di Chen, Jianguang Zhang, Shaohua Tang
No abstract text is available yet for this article.
November 28, 2016: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/27907214/derivation-of-induced-trophoblast-cell-lines-in-cattle-by-doxycycline-inducible-piggybac-vectors
#19
Takamasa Kawaguchi, Dooseon Cho, Masafumi Hayashi, Tomoyuki Tsukiyama, Koji Kimura, Shuichi Matsuyama, Naojiro Minami, Masayasu Yamada, Hiroshi Imai
Trophectoderm lineage specification is one of the earliest differentiation events in mammalian development. The trophoblast lineage, which is derived from the trophectoderm, mediates implantation and placental formation. However, the processes involved in trophoblastic differentiation and placental formation in cattle remain unclear due to interspecies differences when compared with other model systems and the small repertoire of available trophoblast cell lines. Here, we describe the generation of trophoblast cell lines (biTBCs) from bovine amnion-derived cells (bADCs) using an induced pluripotent stem cell technique...
2016: PloS One
https://www.readbyqxmd.com/read/27906186/preimplantation-factor-is-an-anti-apoptotic-effector-in-human-trophoblasts-involving-p53-signaling-pathway
#20
Hadia Moindjie, Esther Dos Santos, Rita-Josiane Gouesse, Nelly Swierkowski-Blanchard, Valérie Serazin, Eytan R Barnea, François Vialard, Marie-Noëlle Dieudonné
From the earliest stages of gestation, embryonic-maternal interaction has a key role in a successful pregnancy. Various factors present during gestation may significantly influence this type of juxta/paracrine interaction. PreImplantation Factor (PIF) is a recently identified factor with activity at the fetomaternal interface. PIF is secreted by viable embryos and directly controls placental development by increasing the invasive capacity of human extravillous trophoblasts (EVTs). To further specify PIF's role in the human placenta, we analyzed the genome-wide expression profile of the EVT in the presence of a synthetic PIF analog (sPIF)...
December 1, 2016: Cell Death & Disease
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