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https://www.readbyqxmd.com/read/28454390/expression-of-novel-cancer-testis-antigen-tmem31-increases-during-metastatic-melanoma-progression
#1
Jiaqiang Li, Xiaowen Zou, Cailing Li, Jianhua Zhong, Yan Chen, Xiaoyue Zhang, Fuming Qi, Mengshuo Li, Zhiming Cai, Aifa Tang
Cancer/testis (CT) antigens are promising targets for immunotherapy due to their restricted expression in the germ cells of the testis in healthy tissue and high immunogenicity. The aim of the present study was to determine whether transmembrane protein 31 (TMEM31) is a CT antigen and to investigate the pattern of TMEM31 expression during the progression of melanoma. The pattern of expression of human TMEM31 mRNA in multiple human tissues was determined through reverse transcription-polymerase chain reaction analysis...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453539/fetal-hemoglobin-in-umbilical-cord-blood-in-preeclamptic-and-normotensive-pregnancies-a-cross-sectional-comparative-study
#2
Zahra Masoumi, Mary Familari, Karin Källén, Jonas Ranstam, Per Olofsson, Stefan R Hansson
Preeclampsia (PE) is associated with increased fetal hemoglobin (HbF) in the maternal circulation but its source is unknown. To investigate whether excessive HbF is produced in the placenta or the fetus, the concentration of HbF (cHbF) in the arterial and venous umbilical cord blood (UCB) was compared in 15825 normotensive and 444 PE pregnancies. The effect of fetal gender on cHbF was also evaluated in both groups. Arterial and venous UCB sampled immediately after birth at 36-42 weeks of gestation were analyzed for total Hb concentration (ctHb) (g/L) and HbF% using a Radiometer blood gas analyzer...
2017: PloS One
https://www.readbyqxmd.com/read/28448910/exposure-to-2-2-4-4-tetrabromodiphenyl-ether-at-late-gestation-modulates-placental-signaling-molecules-in-the-mouse-model
#3
Yun Zhu, Yan Qin Tan, Lai K Leung
Polybrominated diphenyl ethers (PBDEs) are flame retardants generally employed in manufacturing household items. Surface water may remove and carry these chemicals to the drainage upon disposal of the items, and ultimately the chemicals enter our food chain. 2,2',4,4'-Tetrabromodiphenyl ether (BDE-47) is a PBDE congener commonly found in contaminated seafood. The placenta is the site of nutrient exchange and is responsible for reproductive hormone secretion during pregnancy. In the present study, pregnant ICR mice were given p...
April 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28448801/the-placental-factor-in-spontaneous-preterm-birth-in-twin-vs-singleton-pregnancies
#4
Eran Weiner, Ann Dekalo, Ohad Feldstein, Elad Barber, Letizia Schreiber, Jacob Bar, Michal Kovo
OBJECTIVE: The association between infection and inflammatory response in singleton preterm birth (PTB) is well established, yet, less is known about PTB in twins. We aimed to compare the placental component and pregnancy outcome in pregnancies complicated with PTB of singletons vs. twin deliveries. We hypothesized that due to different underlying mechanisms, placental inflammatory lesions will be more prevalent in placentas derived from singleton pregnancies than twins. STUDY DESIGN: Labor characteristics, neonatal outcome and placental histopathology reports of spontaneous PTB at 24-33(6)/7 weeks, from 1/2008-12/2015, were reviewed...
April 22, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28448397/prophylactic-pentazocine-reduces-the-incidence-of-pruritus-after-cesarean-delivery-under-spinal-anesthesia-with-opioids-a-prospective-randomized-clinical-trial
#5
Masato Hirabayashi, Katsushi Doi, Noritaka Imamachi, Tomomune Kishimoto, Yoji Saito
BACKGROUND: The incidence of pruritus after cesarean delivery under spinal anesthesia with opioids is high, ranging from 50% to 100%. Pruritus is difficult to prevent; however, pentazocine has been shown to be an effective treatment. Despite this, the prophylactic effect of pentazocine on pruritus has not been defined. This randomized double-blind trial aimed to evaluate the effect of intraoperative IV pentazocine on the incidence of opioid-induced pruritus within the first 24 hours after administration of neuraxial opioids...
April 24, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28447991/isolation-and-characterization-of-mesenchymal-stromal-cells-from-human-umbilical-cord-and-fetal-placenta
#6
Naimisha Beeravolu, Christina McKee, Ali Alamri, Sasha Mikhael, Christina Brown, Mick Perez-Cruet, G Rasul Chaudhry
The human umbilical cord (UC) and placenta are non-invasive, primitive and abundant sources of mesenchymal stromal cells (MSCs) that have increasingly gained attention because they do not pose any ethical or moral concerns. Current methods to isolate MSCs from UC yield low amounts of cells with variable proliferation potentials. Since UC is an anatomically-complex organ, differences in MSC properties may be due to the differences in the anatomical regions of their isolation. In this study, we first dissected the cord/placenta samples into three discrete anatomical regions: UC, cord-placenta junction (CPJ), and fetal placenta (FP)...
April 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447504/placental-growth-factor-plgf-as-an-angiogenic-inflammatory-switcher-lesson-from-early-pregnancy-losses
#7
Hamid Reza Nejabati, Zeinab Latifi, Tohid Ghasemnejad, Amir Fattahi, Mohammad Nouri
Placental growth factor (PlGF) is an angiogenic factor which belongs to vascular endothelial growth factor (VEGF) family. In addition to the angiogenic function of PlGF, in some conditions such as preeclampsia and early pregnancy losses, it can induce inflammatory reactions which could be accompanied with reduced angiogenesis. Hence, it is crucial to investigate inflammatory and angiogenic switching states and understand underlying mechanisms. PlGF is expressed in endometrium, placenta and trophoblast cells and is involved in maturation of uterine NK cells...
April 27, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28446590/effects-of-rna-integrity-on-transcript-quantification-by-total-rna-sequencing-of-clinically-collected-human-placental-samples
#8
Mario Reiman, Maris Laan, Kristiina Rull, Siim Sõber
RNA degradation is a ubiquitous process that occurs in living and dead cells, as well as during handling and storage of extracted RNA. Reduced RNA quality caused by degradation is an established source of uncertainty for all RNA-based gene expression quantification techniques. RNA sequencing is an increasingly preferred method for transcriptome analyses, and dependence of its results on input RNA integrity is of significant practical importance. This study aimed to characterize the effects of varying input RNA integrity [estimated as RNA integrity number (RIN)] on transcript level estimates and delineate the characteristic differences between transcripts that differ in degradation rate...
April 26, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28444191/risks-of-miscarriage-or-preterm-delivery-in-trichorionic-and-dichorionic-triplet-pregnancies-with-embryo-reduction-versus-expectant-management-a-systematic-review-and-meta-analysis
#9
C Anthoulakis, T Dagklis, A Mamopoulos, A Athanasiadis
STUDY QUESTION: Is pregnancy outcome in triplet pregnancies improved with embryo reduction (ER) to twins compared to expectant management? SUMMARY ANSWER: In trichorionic triplet pregnancies, ER to twins reduces the risk of preterm birth (<34 weeks) without significantly increasing the risk of miscarriage (<24 weeks), whereas in dichorionic triplet pregnancies, the results are inconclusive. WHAT IS KNOWN ALREADY: Triplet pregnancies are associated with a high risk of miscarriage and preterm birth...
April 21, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28443479/melatonin-improves-mitochondrial-respiration-in-syncytiotrophoblasts-from-placentas-of-obese-women
#10
Kayla E Ireland, Alina Maloyan, Leslie Myatt
Maternal obesity is associated with increased oxidative stress but decreased placental mitochondrial respiration and expression of mitochondrial electron transport chain (ETC) complexes I to V. Melatonin acts as an antioxidant and prevents oxidative stress-induced changes in cytotrophoblasts. Placentas were collected at term by cesarean delivery from obese (first trimester body mass index [BMI] ≥30, n = 10) or lean (BMI < 25, n = 6) women. Cytotrophoblasts were isolated and allowed to syncytialize for 72 hours with or without melatonin (0...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28442989/perinatal-brain-injury-as-a-consequence-of-preterm-birth-and-intrauterine-inflammation-designing-targeted-stem-cell-therapies
#11
REVIEW
Madison C B Paton, Courtney A McDonald, Beth J Allison, Michael C Fahey, Graham Jenkin, Suzanne L Miller
Chorioamnionitis is a major cause of preterm birth and brain injury. Bacterial invasion of the chorion and amnion, and/or the placenta, can lead to a fetal inflammatory response, which in turn has significant adverse consequences for the developing fetal brain. Accordingly, there is a strong causal link between chorioamnionitis, preterm brain injury and the pathogenesis of severe postnatal neurological deficits and cerebral palsy. Currently there are no treatments to protect or repair against brain injury in preterm infants born after pregnancy compromised by intrauterine infection...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28442974/balloon-occlusion-of-internal-iliac-arteries-in-placenta-accreta
#12
Abhijit S Nair
No abstract text is available yet for this article.
April 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28442058/nuclear-transfer-alters-placental-gene-expression-and-associated-histone-modifications-of-the-placental-specific-imprinted-gene-pleckstrin-homology-like-domain-family-a-member-2-phlda2-in-cattle
#13
Daniel R Arnold, Roberta C Gaspar, Carlos V da Rocha, Juliano R Sangalli, Tiago H C de Bem, Carolina A P Corrêa, João C T Penteado, Flavio V Meirelles, Flavia L Lopes
Abnormal placental development is frequent in nuclear transfer (NT) pregnancies and is likely to be associated with altered epigenetic reprogramming. In the present study, fetal and placental measurements were taken on Day 60 of gestation in cows with pregnancies produced by AI, IVF and NT. Placentas were collected and subjected to histological evaluation, the expression of genes important in trophoblast differentiation and expression of the placental imprinted gene pleckstrin homology-like domain, family A, member 2 (PHLDA2), as well as chromatin immunoprecipitation (ChIP) for histone marks within the promoter of PHLDA2...
March 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28442041/cytokine-gene-expression-at-the-maternal-fetal-interface-after-somatic-cell-nuclear-transfer-pregnancies-in-small-ruminants
#14
Heloisa M Rutigliano, Amanda Wilhelm, Justin Hall, Bi Shi, Qinggang Meng, Rusty Stott, Thomas D Bunch, Kenneth L White, Christopher J Davies, Irina A Polejaeva
The present retrospective study investigated pregnancy rates, the incidence of pregnancy loss and large offspring syndrome (LOS) and immune-related gene expression of sheep and goat somatic cell nuclear transfer (SCNT) pregnancies. We hypothesised that significantly higher pregnancy losses observed in sheep compared with goat SCNT pregnancies are due to the increased amounts of T-helper 1 cytokines and proinflammatory mediators at the maternal-fetal interface. Sheep and goat SCNT pregnancies were generated using the same procedure...
April 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28441900/placental-nfe2l2-is-discordantly-activated-in-monochorionic-twins-with-selective-intrauterine-growth-restriction-and-possibly-regulated-by-hypoxia
#15
Jing Wu, Zhiming He, Yu Gao, Guanglan Zhang, Xuan Huang, Qun Fang
INTRODUCTION: Nuclear factor, erythroid 2 like 2 (NFE2L2) is an important transcription factor that protects cells from oxidative stress (OS). NFE2L2 deficiency in placentas is associated with pregnancy complications. We have demonstrated that elevated OS existed in placental shares of the smaller fetus in selective intrauterine growth restriction (sIUGR); however, the role of NFE2L2 in the development of sIUGR remains unknown. In this study, we examined the levels of NFE2L2 and heme oxygenase 1 (HMOX1), a major antioxidant regulated by NFE2L2, in sIUGR placentas...
April 25, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28441551/treating-normal-early-gestation-placentae-with-preeclamptic-sera-produces-extracellular-micro-and-nano-vesicles-that-activate-endothelial-cells
#16
Xirong Xiao, Fengyi Xiao, Mingzhi Zhao, Mancy Tong, Michelle R Wise, Peter R Stone, Lawrence W Chamley, Qi Chen
OBJECTIVES: Preeclampsia is characterised by systemic endothelial cell dysfunction thought to be triggered by toxic/dangerous factors from the placenta, including placental extracellular vesicles (EVs). Why placental EVs become toxic is unknown. We previously reported that preeclamptic sera produced toxic/dangerous placental macrovesicles but whether small EVs are also toxic/dangerous in preeclampsia is unknown. STUDY DESIGN: First trimester placental explants were treated with 10% preeclamptic or control sera (n=10) for 24h...
April 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28440905/clinical-follow-up-of-women-after-hypertensive-disease-in-pregnancy
#17
H A Boyd
That hypertensive disorders of pregnancy (HDP) affect maternal health even after delivery of the baby and the placenta, is no longer in doubt. Women with a history of HDP, preeclampsia in particular, have well-documented increased risks of later hypertension, ischemic heart disease, myocardial infarction, ischemic stroke, venous thromboembolism, and cardiomyopathy. However, our understanding of how "later" is defined - i.e. when exactly HDP-associated disease risks increase - is shifting. This article is protected by copyright...
April 25, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28440856/when-a-cesarean-section-scar-is-more-than-an-innocent-bystander-in-a-subsequent-pregnancy-ultrasound-to-the-rescue
#18
REVIEW
Divya Singh, Ladbans Kaur
Over the years, cesarean section has played a pivotal role in reducing maternal and perinatal morbidity and mortality. With the rising trend of this surgery, a substantial number of pregnant women have a cesarean section scar. The scar can serve as the abode of grave conditions in subsequent pregnancies, namely cesarean scar pregnancy, morbidly adherent placenta, and scar dehiscence. Sonography has emerged as a robust tool for the diagnosis of these potentially life-threatening conditions. This review highlights the key sonographic features of various complications that can occur at the cesarean scar site in subsequent pregnancies...
April 25, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28440579/prevalence-of-herpes-simplex-virus-types-1-and-2-at-maternal-and-fetal-sides-of-the-placenta-in-asymptomatic-pregnant-women
#19
Fabiana Finger-Jardim, Emiliana C Avila, Vanusa P da Hora, Carla V Gonçalves, Ana Maria B de Martinez, Marcelo A Soares
PROBLEM: Herpes simplex virus 1 (HSV-1) commonly causes orolabial infection, but can also infect the genital mucosa. In contrast, HSV-2 is usually genital. Genital herpes can transmit the virus vertically to the fetus during pregnancy. We sought to estimate the prevalence of HSV-1/2 on the maternal and fetal sides of the placenta. METHOD OF STUDY: Placental tissues were collected from pregnant women seen at the Rio Grande University Hospital. HSV-1 and HSV-2 were detected by nested PCR...
April 25, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28440394/g-protein-coupled-receptor-30-mediates-the-effects-of-estrogen-on-endothelial-cell-tube-formation-in%C3%A2-vitro
#20
Liyuan Zhou, Hong Chen, Xun Mao, Hongbo Qi, Philip N Baker, Hua Zhang
The placenta is the exchange organ between the mother and the fetus. The inadequate function of this organ is associated with a number of pregnancy disorders. Hypoxia and oxidative stress during placental development may induce endothelial dysfunction, resulting in the reduction in the perfusion of the placenta. During pregnancy, the levels of estrogen are increased. Decreased estrogen levels have been reported in women with preeclampsia. However, whether estrogen is involved in placental angiogenesis remains unclear...
April 20, 2017: International Journal of Molecular Medicine
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