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https://www.readbyqxmd.com/read/28938125/selective-immuno-modulatory-effect-of-prolactin-upon-pro-inflammatory-response-in-human-fetal-membranes
#1
Pilar Flores-Espinosa, Eduardo Preciado-Martínez, Araceli Mejía-Salvador, Gabriela Sedano-González, Luisa Bermejo-Martínez, Adalberto Parra-Covarruvias, Guadalupe Estrada-Gutiérrez, Rodrigo Vega-Sánchez, Isabel Méndez, Braulio Quesada-Reyna, Andrea Olmos-Ortiz, Veronica Zaga-Clavellina
During pregnancy, prolactin (PRL) is a neuro-immuno-cytokine that contributes actively to the crosstalk between the immune and endocrine systems and, thus, to the creation of an immune-privileged milieu. This work aims to analyze the capacity of PRL to modulate the synthesis and secretion of pro-inflammatory markers associated with labor. Studies were conducted using human fetal membranes at term mounted in a model of two independent chambers. The choriodecidual region was stimulated with 500-ng/mL lipopolysaccharide (LPS), and the amnion and choriodecidual region were co-simulated with different concentrations of PRL that can arise during pregnancy: 250, 500, 1000, and 4000ng/mL...
September 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28933697/enhanced-skin-regeneration-using-a-novel-amniotic-derived-tissue-graft
#2
Katie C Mowry, Paul P Bonvallet, Susan L Bellis
BACKGROUND: Chronic and recalcitrant wounds present a significant therapeutic challenge. Amniotic tissues contain many regenerative cytokines, growth factors, and extracellular matrix molecules including proteoglycans, hyaluronic acid, and collagens I, III, and IV. Dehydrated amnion/chorion grafts are currently used to treat a variety of wounds such as diabetic foot ulcers and burns. OBJECTIVE: The investigators hypothesized that processing methodologies, dehydration, and hypothermic processing and storage of amniotic tissues would affect overall quality of wound healing; they compared dehydrated amnion/chorion (dHACM) grafts to a novel hypothermically stored amniotic membrane (HSAM) graft in a full-thickness rat wound model...
September 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28922348/stem-cell-biology-and-regenerative-medicine-for-neonatal-lung-diseases
#3
REVIEW
Martin Kang, Bernard Thébaud
Lung diseases remain one of the main causes of morbidity and mortality in neonates. Cell therapy and regenerative medicine have the potential to revolutionize the management of life-threatening and debilitating lung diseases that currently lack effective treatments. Over the past decade, the repair capabilities of stem/progenitor cells has been harnessed to prevent/rescue lung damage in experimental neonatal lung diseases. Mesenchymal stromal cells and amnion epithelial cells exert pleiotropic effects and represent ideal therapeutic cells for bronchopulmonary dysplasia, a multifactorial disease...
September 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28915123/placental-examination-in-nonmacerated-stillbirth-versus-neonatal-mortality
#4
Jerzy Stanek
AIM: To retrospectively statistically compare clinical and placental phenotypes of nonmacerated fetuses and live-born perinatal deaths in 3rd trimester pregnancies. METHODS: Twenty-five clinical and 47 placental phenotypes were statistically compared among 93 cases of nonmacerated (intrapartum, or recent antepartum death) 3rd trimester fetal deaths (Group 1), 118 3rd trimester neonatal deaths (Group 2) and 4285 cases without perinatal mortality (Group 3). RESULTS: Sixteen clinical and placental phenotypes were statistically significantly different between Group 3 and the two groups of perinatal deaths, which included eight placental phenotypes of fetal vascular malperfusion and eight other placental phenotypes of various etiology (amnion nodosum, 2-vessel umbilical cord, villous edema, increased extracellular matrix of chorionic villi, erythroblasts in fetal blood and trophoblastic lesions of shallow placentation)...
September 18, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28911210/a20-an-essential-component-of-the-ubiquitin-editing-protein-complex-is-a-negative-regulator-of-inflammation-in-human-myometrium-and-foetal-membranes
#5
Martha Lappas
STUDY QUESTION: Does A20 regulate mediators involved in the terminal processes of human labour in primary myometrial and amnion cells? SUMMARY ANSWER: A20 is a nuclear factor-kappa B (NF-κB) responsive gene that acts as a negative regulator of NF-κB-induced expression of pro-labour mediators. WHAT IS KNOWN ALREADY: Inflammation is commonly implicated in spontaneous preterm birth and the processes involved in rupture of foetal membranes and uterine contractions...
September 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28901433/expression-of-long-non%C3%A2-coding-rnas-in-human-bone-marrow-mesenchymal-stem-cells-co%C3%A2-cultured-with-human-amnion%C3%A2-derived-mesenchymal-stem-cells
#6
Jingjing Wang, Jing Miao, Xin Meng, Ning Chen, Yuli Wang
Long non‑coding RNAs (lncRNAs) serve a critical role in various biological processes including cell growth, transcriptional regulation and differentiation. Previous studies have demonstrated that human amnion‑derived mesenchymal stem cells (HAMSCs) possess the potential to promote proliferation and osteogenic differentiation of human bone marrow mesenchymal stem cells (HBMSCs). However, little is known about the roles of lncRNAs in these mechanisms. The present study investigated the expression of lncRNAs in HBMSCs co‑cultured with HAMSCs to study their involvement in the mechanism of osteogenic differentiation...
September 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28895475/delayed-intranasal-infusion-of-human-amnion-epithelial-cells-improves-white-matter-maturation-after-asphyxia-in-preterm-fetal-sheep
#7
Lotte G van den Heuij, Mhoyra Fraser, Suzanne L Miller, Graham Jenkin, Euan M Wallace, Joanne O Davidson, Christopher A Lear, Rebecca Lim, Guido Wassink, Alistair J Gunn, Laura Bennet
Perinatal hypoxic-ischemic (HI) brain injury remains highly associated with neurodevelopmental disability after preterm birth. There is increasing evidence that disability is linked with impaired white matter maturation, but there is no specific treatment. In this study, we evaluated whether, in preterm fetal sheep, delayed intranasal infusion of human amnion epithelial cells (hAECs) given 1, 3 and 10 days after severe HI, induced by umbilical cord occlusion for 25 min, can restore white matter maturation or reduce delayed cell loss...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28895073/efficacy-and-time-sensitivity-of-amniotic-membrane-treatment-in-patients-with-diabetic-foot-ulcers-a-systematic-review-and-meta-analysis
#8
REVIEW
Irakoze Laurent, Manirakiza Astère, Kan Ran Wang, Qing-Feng Cheng, Qi Fu Li
INTRODUCTION: Diabetic foot ulcers (DFUs) are complex chronic wounds which have a major long-term impact on the morbidity, mortality and quality of patients. The objective of this study was to assess the efficacy and time sensitivity of human amnion/chorion membrane treatment in patients with chronic DFUs. METHODS: The Cochrane Library, PubMed, Embase and Web of Science databases were systematically searched to identify relevant articles up to 10 April 2017. All randomized controlled trials (RCTs) comparing human amnion/chorion membrane + standard therapy and standard therapy alone in patients with DFUs were included in the analysis...
September 11, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28893657/the-effect-of-adjuvant-treatment-to-prevent-and-treat-intrauterine-adhesions-a-network-meta-analysis-of-randomized-controlled-trials
#9
REVIEW
Yu Yan, Dongmei Xu
Intrauterine adhesions (IUA) can lead to partial or complete closure of the uterine cavity, which may result in symptoms including abnormal menstruation, infertility, and pelvic pain. A network meta-analysis was performed to assess the effect of adjuvant therapy on the prevention and treatment of intrauterine adhesions. We searched electronic databases, including PubMed, EmBase, and the Cochrane Library, up to May 5, 2017 without language restrictions. The primary outcomes in the present analysis were the rate of IUAs for prevention and the rate of IUA recurrence for treatment...
September 8, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28879060/onset-of-human-preterm-and-term-birth-is-related-to-unique-inflammatory-transcriptome-profiles-at-the-maternal-fetal-interface
#10
Radek Bukowski, Yoel Sadovsky, Hani Goodarzi, Heping Zhang, Joseph R Biggio, Michael Varner, Samuel Parry, Feifei Xiao, Sean M Esplin, William Andrews, George R Saade, John V Ilekis, Uma M Reddy, Donald A Baldwin
BACKGROUND: Preterm birth is a main determinant of neonatal mortality and morbidity and a major contributor to the overall mortality and burden of disease. However, research of the preterm birth is hindered by the imprecise definition of the clinical phenotype and complexity of the molecular phenotype due to multiple pregnancy tissue types and molecular processes that may contribute to the preterm birth. Here we comprehensively evaluate the mRNA transcriptome that characterizes preterm and term labor in tissues comprising the pregnancy using precisely phenotyped samples...
2017: PeerJ
https://www.readbyqxmd.com/read/28878671/a-pilot-study-evaluating-the-safety-of-intravenously-administered-human-amnion-epithelial-cells-for-the-treatment-of-hepatic-fibrosis
#11
Rebecca Lim, Alexander Hodge, Gregory Moore, Euan M Wallace, William Sievert
Liver cirrhosis is the 6th leading cause of death in adults aged 15-59 years in high-income countries. For many who progress to cirrhosis, the only prospect for survival is liver transplantation. While there is some indication that mesenchymal stem cells may be useful in reversing established liver fibrosis, there are limitations to their widespread use - namely their rarity, the need for extensive serial passaging and the associated potential for genomic instability and cellular senescence. To this end, we propose the use of allogeneic amnion epithelial cells...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28878297/role-of-nf-%C3%AE%C2%BAb-gata3-in-the-inhibition-of-lysyl-oxidase-by-il-1%C3%AE-in-human-amnion-fibroblasts
#12
Chuyue Zhang, Wangsheng Wang, Chao Liu, Jiangwen Lu, Kang Sun
Preterm premature rupture of membranes (pPROM) accounts for one third of preterm births, a leading cause of neonatal death. Understanding the mechanism of membrane rupture is thus of clinical significance in the prevention of preterm birth. Parturition at both term and preterm is associated with increased abundance of proinflammatory cytokines in the fetal membranes regardless of the presence of infection, which is believed to induce rupture of membranes through activation of the matrix metalloproteinases. It remains unknown whether there are any alternative mechanisms underpinning proinflammatory cytokine-induced rupture of membranes...
September 7, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28873060/a-retrospective-crossover-study-of-the-use-of-aseptically-processed-placental-membrane-in-the-treatment-of-chronic-diabetic-foot-ulcers
#13
Lawrence A DiDomenico, Dennis P Orgill, Robert D Galiano, Thomas E Serena, Marissa J Carter, Jarrod P Kaufman, Nathan J Young, Charles M Zelen
BACKGROUND: In a recently published, prospective randomized controlled trial (RCT) comparing aseptically processed dehydrated human amnion/chorion allograft (dHACA) to standard of care (SOC), 85% wound closure rates were reported in the dHACA arm while only 25% of patients in the SOC arm healed. OBJECTIVE: The purpose of this retrospective crossover study is to evaluate the effectiveness of dHACA in those patients that failed to respond to the SOC treatments and who exited the original study after failing up to 12 weeks of SOC treatment...
July 26, 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28864003/vesicular-uptake-of-macromolecules-by-human-placental-amniotic-epithelial-cells
#14
Rita Sharshiner, Robert A Brace, Cecilia Y Cheung
INTRODUCTION: Studies in animal models have shown that unidirectional vesicular transport of amniotic fluid across the amnion plays a primary role in regulating amniotic fluid volume. Our objective was to explore vesicle type, vesicular uptake and intracellular distribution of vesicles in human amnion cells using high- and super-resolution fluorescence microscopy. METHODS: Placental amnion was obtained at cesarean section and amnion cells were prepared and cultured...
September 2017: Placenta
https://www.readbyqxmd.com/read/28858636/damage-associated-molecular-pattern-markers-hmgb1-and-cell-free-fetal-telomere-fragments-in-oxidative-stressed-amnion-epithelial-cell-derived-exosomes
#15
Samantha Sheller-Miller, Rheanna Urrabaz-Garza, George Saade, Ramkumar Menon
Term labor in humans is associated with increased oxidative stress (OS) -induced senescence and damages to amnion epithelial cells (AECs). Senescent fetal cells release alarmin high-mobility group box 1 (HMGB1) and cell-free fetal telomere fragments (cffTF) which can be carried by exosomes to other uterine tissues to produce parturition-associated inflammatory changes. This study characterized AEC-derived exosomes under normal and OS conditions and their packaging of HMGB1 and cffTF. Primary AECs were treated with either standard media or oxidative stress-induced media (exposure to cigarette smoke extract for 48h)...
August 24, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28856023/body-stalk-anomaly-antenatal-sonographic-diagnosis-of-this-rare-entity-with-review-of-literature
#16
Amandeep Singh, Jasmeet Singh, Kamlesh Gupta
Body stalk anomaly is a rare and severe malformation syndrome in which the exact pathophysiology and trigger factors are still unknown. Possible causes of body stalk anomaly include early amnion rupture with direct mechanical pressure and amniotic bands, vascular disruption of the early embryo, or an abnormality in the germinal disk. We present a case of body stalk anomaly diagnosed during antenatal sonographic evaluation at the first visit with the review of literature regarding this phenomenon. Sonographic features of the fetus included a severe midline defect of the fetal abdominal wall with a large extra-abdominal mass containing bowel and liver inside...
June 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28854866/histopathological-alterations-in-fetal-membranes-of-women-with-endometriosis
#17
Louis Marcellin, Céline Méhats, Jean Gogusev
Previously, we reported endometriotic-like decidual lesions in contact with the fetal membranes (FMs) in 11 pregnant women with severe endometriosis. In this report, an extensive histomorphological analysis was performed on the FMs of 19 pregnant women with deep infiltrating endometriosis (DIE) at term pregnancy and who delivered by cesarean delivery before labor. On gross examination, all samples showed increased thickness, de novo microvessel formation, and small-size excrescences distributed along the membrane circumference...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28850682/perinatal-outcomes-associated-with-isolated-velamentous-cord-insertion-in-singleton-and-twin-pregnancies
#18
Joshua A Sinkin, Wendy Y Craig, Michael Jones, Michael G Pinette, Joseph R Wax
OBJECTIVES: To evaluate perinatal outcomes in singleton and twin pregnancies with pathologically confirmed velamentous cord insertion without vasa previa. METHODS: This retrospective case-control study included all nonanomalous singleton and twin pregnancies with pathologically confirmed velamentous cord insertion delivered in a single institution between January 1, 2005, and July 1, 2015, and having an ultrasound examination by maternal-fetal medicine. For each case, the next 2 consecutive deliveries matched for gestational age at delivery ± 1 week and, in twins, amnionicity and chorionicity served as controls...
August 29, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28807808/safety-and-efficacy-of-amnion-graft-in-preventing-reformation-of-intra-uterine-adhesions
#19
Xuebing Peng, TinChiu Li, Yuting Zhao, Yan Guo, Enlan Xia
OBJECTIVE: To determine the safety and efficacy of amnion graft in the prevention of recurrence of intrauterine adhesions after hysteroscopic adhesiolysis in women with severe intrauterine adhesions. DESIGN: Retrospective matched cohort study including 120 patients treated during 62 months (Canadian Task Force classification II-2). SETTING: Tertiary referral center. PATIENTS: A total of one hundred and twenty patients who underwent intrauterine adhesiolysis for severe intrauterine adhesion, forty patients in the treatment group, eighty patients in the control group matched for age and adhesion scores...
August 11, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28797129/differential-effects-of-amnion-and-chorion-membrane-extracts-on-osteoblast-like-cells-due-to-the-different-growth-factor-composition-of-the-extracts
#20
Yoon Young Go, Sung Eun Kim, Geum Joon Cho, Sung-Won Chae, Jae-Jun Song
Human amniotic membrane extracts contain numerous growth factors and bioactive substances. However, osteogenic effects of amnion and chorion membrane extracts (AME and CME, respectively) on osteoblasts are unclear. In this study, we explored the ability of AME and CME to promote the osteogenic differentiation of osteoblast-like MG-63 cells. MG-63 cells were cultured in osteogenic induction medium (OIM) with or without exogenous AME and CME. CME enhanced the osteogenic differentiation of MG-63 cells compared with AME, as indicated by increased mineralization; alkaline phosphatase activity; and mRNA expression of osteogenic marker genes encoding integrin-binding sialoprotein (IBSP), RUNX2, OSTERIX, and osteocalcin (OCN)...
2017: PloS One
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