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https://www.readbyqxmd.com/read/29135079/cigarette-smoke-extract-and-isoprene-resulted-in-the-induction-of-apoptosis-and-autophagy-in-human-placenta-choriocarcinoma-jeg-3-cells
#1
Hae-Miru Lee, Kyung-Chul Choi
In this study, the effects of cigarette smoke (CS) on the induction of apoptosis via reactive oxygen species (ROS) production and endoplasmic reticulum stress (ER stress) of JEG-3 human choriocarcinoma cells were examined to confirm the relationship between CS and placenta development. Upon TUNEL assay, CS extract (3R4F; 0.3 and 2.1 μM) increased JEG-3 apoptosis. Western blot assay revealed that the protein expressions of p53, Bax, and CCAAT-enhancer-binding protein homologous protein (CHOP) increased, while the levels of Bcl-2 were reduced following CS extract treatment...
November 14, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29108633/preeclampsia-associates-with-reck-dependent-decrease-in-human-trophoblasts-migration-and-invasion
#2
Jaime Gutiérrez, Alejandro Aedo, Jacob Mora, Jorge Maldonado, Rocío Salsoso, Fernando Toledo, Marcelo Farías, Fabián Pardo, Andrea Leiva, Luis Sobrevia
INTRODUCTION: Preeclampsia is characterized by reduced invasion capacity of trophoblasts involving lower matrix metalloproteinase (MMP) activity. Cell invasion is reduced by reversion-inducing-cysteine-rich protein with Kazal motifs (RECK), a plasma membrane protein that inhibits MMP in several cell types. However, it is unknown whether this mechanism happens in the human placenta from preeclampsia. The hypothesis of this study sustains that RECK expression is increased leading to reduced trophoblasts invasion in preeclampsia...
November 2017: Placenta
https://www.readbyqxmd.com/read/29104621/abnormal-expression-of-microrna-575-leads-to-missed-abortion-through-regulating-apoptosis-and-angiogenesis
#3
Shuqin Xia, Yihui Zhen, Hongsheng Ma, Aiming Wang
Numerous microRNA (miR) are important for placental development and function. miR-575 has been demonstrated to be upregulated in maternal placenta in patients who have experienced a miscarriage. The present study aimed to explore the role of abnormal expression of miR-575 in missed abortion (MA) and to further analyze the potential molecular mechanisms. Embryo villus tissue samples were extracted from 10 childless women with MA and 10 fertile women without a history of MA. Additionally, human choriocarcinoma cells, JEG-3, were used in the present study, which were transfected with miR-575 mimic, inhibitor and scramble...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29083107/increased-mir-223-expression-in-foetal-organs-is-a-signature-of-acute-chorioamnionitis-with-systemic-consequences
#4
JoonHo Lee, Chong Jai Kim, Jung-Sun Kim, Deug-Chan Lee, Sejin Ahn, Bo Hyun Yoon
Acute chorioamnionitis, frequently observed in preterm placentas, is a major risk factor for the development of infection and non-infection-related adverse perinatal outcomes. MicroRNAs play important roles in immune cell development and function as well as in the development of cancers and neurologic diseases. We sought to investigate the changes in microRNA-223 (miR-223) expression and the functional significance of the changes in miR-223 expression in foetal organs in the presence of acute chorioamnionitis...
October 30, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29027680/determination-of-thiocyanate-as-a-biomarker-of-tobacco-smoke-constituents-in-selected-biological-materials-of-human-origin
#5
Sylwia Narkowicz, Ewa Jaszczak, Żaneta Polkowska, Bogumiła Kiełbratowska, Alicja Kotłowska, Jacek Namieśnik
In order to protect human health, it is necessary to biomonitor toxic substances originating from tobacco smoke in biological materials sampled from the persons with different exposures to tobacco smoke constituents. Thiocyanate anion is a biomarker of exposure to tobacco smoke components which is characterized by a relatively long half-life in the human body, i.e. 6 days. In this work, we present the results of thiocyanate determinations performed on the samples of placenta, meconium, saliva, breast milk, sweat and blood...
October 13, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29025835/the-climb-complex-lipids-in-mothers-and-babies-study-protocol-for-a-multicentre-three-group-parallel-randomised-controlled-trial-to-investigate-the-effect-of-supplementation-of-complex-lipids-in-pregnancy-on-maternal-ganglioside-status-and-subsequent-cognitive
#6
Shuai Huang, Ting-Ting Mo, Tom Norris, Si Sun, Ting Zhang, Ting-Li Han, Angela Rowan, Yin-Yin Xia, Hua Zhang, Hong-Bo Qi, Philip N Baker
INTRODUCTION: Complex lipids are important constituents of the central nervous system. Studies have shown that supplementation with complex milk lipids (CML) in pregnancy may increase the level of fetal gangliosides (GA), with the potential to improve cognitive outcomes. METHODS AND ANALYSIS: We aim to recruit approximately 1500 pregnant women in the first trimester (11-14 weeks) and randomise them into one of the three treatment groups: standard maternal milk formulation, CML-enhanced maternal milk formulation or no maternal milk intervention with standard pregnancy advice (ie, the standard care)...
October 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/29025450/an-increase-in-rates-of-obstetric-haemorrhage-in-a-setting-of-high-hiv-seroprevalence
#7
E Shabalala, Hannah M Sebitloane
BACKGROUND: Obstetric haemorrhage (OH) is the leading cause of maternal mortality worldwide, although, indirectly, HIV is also a leading cause of maternal mortality in some settings with a high HIV seroprevalence. OBJECTIVE: To determine the possible association between increasing rates of OH and HIV or its treatment. METHODS: We conducted a retrospective chart review of women with OH at King Edward VIII Hospital, Durban, South Africa, over a 3-year period (2009 - 2011), during which the drug regimen for the prevention of mother-to-child transmission was evolving from single-dose nevirapine to antenatal zidovudine combined with intrapartum nevirapine (also referred to as dual therapy), and finally to a combination or highly active antiretroviral therapy (cART or HAART)...
June 30, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28964823/are-amniotic-fluid-neutrophils-in-women-with-intraamniotic-infection-and-or-inflammation-of-fetal-or-maternal-origin
#8
Nardhy Gomez-Lopez, Roberto Romero, Yi Xu, Yaozhu Leng, Valeria Garcia-Flores, Derek Miller, Suzanne M Jacques, Sonia S Hassan, Jonathan Faro, Adham Alsamsam, Ali Alhousseini, Hunter Gomez-Roberts, Bogdan Panaitescu, Lami Yeo, Eli Maymon
BACKGROUND: Neutrophils are the most abundant white blood cells found in the amniotic cavity of women with intraamniotic infection and/or inflammation. The current belief is that these neutrophils are of fetal origin. However, abundant neutrophils have been found in the amniotic fluid of women with a severe acute maternal inflammatory response but without a fetal inflammatory response in the placenta, suggesting that these innate immune cells can also be of maternal origin or a mixture of both fetal and maternal neutrophils...
September 28, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28962693/diffusion-and-perfusion-quantified-by-magnetic-resonance-imaging-are-markers-of-human-placenta-development-in-normal-pregnancy
#9
Silvia Capuani, Michele Guerreri, Amanda Antonelli, Silvia Bernardo, Maria Grazia Porpora, Antonella Giancotti, Carlo Catalano, Lucia Manganaro
PURPOSE: To investigate the potential of bi-exponential model of diffusion-weighted (DW) signal decay to quantify diffusion and perfusion changes in human placenta of normal pregnancies due to its development. METHODS: 26 normal pregnancies at 19-37 weeks of gestation underwent Magnetic Resonance Imaging (MRI) examination at 1.5 T. DW Spin-Echo Echo Planar Imaging with diffusion gradients applied along 3 no-coplanar directions at seven different b-values (0,50,100,150,400,700,1000 s/mm(2)) was used...
October 2017: Placenta
https://www.readbyqxmd.com/read/28952185/pregnancy-after-endometrial-ablation-a-systematic-review
#10
REVIEW
J R Kohn, A A Shamshirsaz, E Popek, X Guan, M A Belfort, K A Fox
BACKGROUND: Pregnancies have been reported after endometrial ablation but there is little data regarding subsequent pregnancy outcomes. OBJECTIVE: To review systematically the available evidence regarding pregnancy outcomes after endometrial ablation, in order to equip physicians effectively to counsel women considering endometrial ablation. SEARCH STRATEGY: MEDLINE, Embase, Cochrane, and ClinicalTrials.gov were searched through January 2017...
September 27, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28948356/inhibition-of-the-receptor-for-advanced-glycation-end-products-rage-protects-from-secondhand-smoke-shs-induced-intrauterine-growth-restriction-iugr-in-mice
#11
Joshua B Lewis, Camilo Mejia, Clinton Jordan, Troy D Monson, Jared S Bodine, Todd M Dunaway, Kaleb M Egbert, Adam L Lewis, Tanner J Wright, K Connor Ogden, Dallin S Broberg, Parker D Hall, Shawn M Nelson, Kelsey M Hirschi, Paul R Reynolds, Juan A Arroyo
Intrauterine growth restriction (IUGR) is a disease affecting 10% of all pregnancies. IUGR is associated with maternal, fetal, or placental abnormalities. Studies investigating the effects of secondhand smoke (SHS) exposure and IUGR are limited. The receptor for advanced glycation end-products (RAGE) is a pro-inflammatory transmembrane receptor increased by SHS in the placenta. We tested the hypothesis that inhibition of RAGE during SHS exposure protects from smoke-induced IUGR. C57BL/6 mice were exposed to SHS or SHS + semi-synthetic glycosaminoglycan ethers (SAGEs) known to inhibit RAGE signaling...
September 26, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28937410/cerebral-oxygenation-of-premature-lambs-supported-by-an-artificial-placenta
#12
Ahmed M El-Sabbagh, Brian W Gray, Andrew W Shaffer, Benjamin S Bryner, Joseph T Church, Jennifer S McLeod, Sara Zakem, Elena M Perkins, Renée A Shellhaas, John D E Barks, Alvaro Rojas-Peña, Robert H Bartlett, George B Mychaliska
An artificial placenta (AP) using venovenous extracorporeal life support (VV-ECLS) could represent a paradigm shift in the treatment of extremely premature infants. However, AP support could potentially alter cerebral oxygen delivery. We assessed cerebral perfusion in fetal lambs on AP support using near-infrared spectroscopy (NIRS) and carotid arterial flow (CAF). Fourteen premature lambs at EGA 130 days (term = 145) underwent cannulation of the right jugular vein and umbilical vein with initiation of VV-ECLS...
September 20, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28928868/villi-specific-gene-expression-reveals-novel-prognostic-biomarkers-in-multiple-human-cancers
#13
Botao Zhang, Lin Feng, Honglin Guo, Hongxia Li, Yuanjing Wang, Kaitai Zhang, Xuexin Yu, Shujun Cheng
Despite many striking connections, the biological similarities between embryonic development and tumorigenesis have not been well explored. Development of the placental villi is a crucial process involving many cellular activities, including immunity, proliferation, and cell adhesion. In this study, we designed a strategy to identify the gene expression pattern of villi development and to explore the corresponding features in tumors. We discovered villi-specific genes that are highly expressed in the villus as opposed to the mature placenta and then measured the expression levels of these genes in tumors...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28926727/early-pregnancy-intrauterine-fetal-exposure-to-maternal-smoking-and-impact-on-fetal-telomere-length
#14
Hooman Mirzakhani, Immaculata De Vivo, J Steven Leeder, Roger Gaedigk, Carrie A Vyhlidal, Scott T Weiss, Kelan Tantisira
BACKGROUND: Reduced telomere length, or its accelerated attrition, has been implicated in aging, mortality, and several human diseases, including respiratory diseases. Age dependent manifestation of telomere-mediated disease during life span indicates the role of developmental stage in these diseases and highlights the importance of fetal developmental process in utero and at earlier life stages. Environmental determinants during developmental and later stages of life could affect telomere length...
November 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28912068/angiogenic-imbalance-and-diminished-matrix-metalloproteinase-2-and-9-underlie-regional-decreases-in-uteroplacental-vascularization-and-feto-placental-growth-in-hypertensive-pregnancy
#15
Carlos A Dias-Junior, Juanjuan Chen, Ning Cui, Charles L Chiang, Minglin Zhu, Zongli Ren, Jose S Possomato-Vieira, Raouf A Khalil
Preeclampsia is a form of hypertension-in-pregnancy (HTN-Preg) with unclear mechanism. Generalized reduction of uterine perfusion pressure (RUPP) could be an initiating event leading to uteroplacental ischemia, angiogenic imbalance, and HTN-Preg. Additional regional differences in uteroplacental blood flow could further affect the pregnancy outcome and increase the risk of preeclampsia in twin or multiple pregnancy, but the mechanisms involved are unclear. To test the hypothesis that regional differences in angiogenic balance and matrix metalloproteinases (MMPs) underlie regional uteroplacental vascularization and feto-placental development, we compared fetal and placental growth, and placental and myoendometrial vascularization in the proximal, middle and distal regions of the uterus (in relation to the iliac bifurcation) in normal pregnant (Preg) and RUPP rats...
September 11, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28912064/cell-cycle-and-histone-modification-genes-were-decreased-in-placenta-tissue-from-unexplained-early-miscarriage
#16
Yuanchang Zhu, Bing Li, Tonghua Wu, Lijun Ye, Yong Zeng, Yaou Zhang
Genetic defect is a major cause of early miscarriage, but still in many cases the etiology are not fully understood. Recent studies have shown that dysregulation of genes in placenta tissue are participated in the pathogenesis of unexplained early miscarriage. The aim of our study is to explore mRNA expression profile in placental chorionic villi and to reveal the underlying mechanism of unexplained early miscarriage. Chorionic villous were isolated and extracted from early miscarriage (n=3) and control pregnancy (n=3) placenta with normal chromosome karyotype using MLPA assay, and then mRNA expression profiles were determined by microarray...
December 15, 2017: Gene
https://www.readbyqxmd.com/read/28867635/effect-of-human-placental-extract-in-the-management-of-biofilm-mediated-drug-resistance-a-focus-on-wound-management
#17
Sutapa Goswami, Ratul Sarkar, Pritam Saha, Amit Maity, Tridib Sarkar, Debmalya Das, Piyali Datta Chakraborty, Subhasri Bandyopadhyay, Chandan Kumar Ghosh, Sanmoy Karmakar, Tuhinadri Sen
Management of infectious wounds, particularly chronic wounds and burn injuries, is a matter of global concern. Worldwide estimates reveal that, billions of dollars are being spent annually for the management of such chronic ailments. Evidently, bacterial biofilms pose a greater problem in the effective management of infection in chronic wounds, since most of the currently available antibiotics are unable to act on the microorganisms residing inside the protected environment of the biofilms. Accordingly, in the present study, we have attempted to evaluate the anti-biofilm properties of human placental extract (PLX) and also other virulence factors that are mediated via the quorum sensing (QS) signalling system...
October 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28865850/validation-of-genomic-predictions-for-wellness-traits-in-us-holstein-cows
#18
Anthony K McNeel, Brenda C Reiter, Dan Weigel, Jason Osterstock, Fernando A Di Croce
The objective of this study was to evaluate the efficacy of wellness trait genetic predictions in commercial herds of US Holstein cows from herds that do not contribute phenotypic information to the evaluation. Tissue samples for DNA extraction were collected from more than 3,400 randomly selected pregnant Holstein females in 11 herds and 2 age groups (69% nulliparous, 31% primiparous) approximately 30 to 60 d before their expected calving date. Lactation records from cows that calved between September 1, 2015, and December 31, 2015, were included in the analysis...
November 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28864007/expression-pattern-and-phosphorylation-status-of-smad2-3-in-different-subtypes-of-human-first-trimester-trophoblast
#19
S Haider, V Kunihs, C Fiala, J Pollheimer, M Knöfler
INTRODUCTION: TGF-β superfamily members are thought to play a pivotal role in placental development and differentiation. However, their downstream effectors, the Smad transcription factors, have been poorly investigated in human trophoblasts. METHODS: Expression and localisation of the canonical TGF-β targets Smad2/3 and their regulators (Smad4 and Smad7) were investigated in first trimester placenta and purified cytotrophoblast (CTB) subtypes using immunofluorescence, western blotting and qPCR...
September 2017: Placenta
https://www.readbyqxmd.com/read/28833496/expression-of-nestin-in-embryonic-tissues-and-its-effects-on-clinicopathological-characteristics-of-patients-with-placenta-previa
#20
Yan-Yan Qiao, Ping Chu
In this study, we examined expression of nestin in the spinal cord, lung, kidney, stomach, colon and intestine tissues at different stages of embryos in patients with placenta previa. Fetuses of 75 patients with placenta previa were assigned to case group and 80 fetuses from healthy pregnant women with normal placenta who voluntarily terminated pregnancy to control group. Clinical data of pregnant women were collected at the time of admission. Blood from elbow vein was collected to determine expression of serum nestin...
August 18, 2017: Journal of Cellular Biochemistry
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