keyword
MENU ▼
Read by QxMD icon Read
search

amnion

keyword
https://www.readbyqxmd.com/read/27916562/cryobiological-parameters-of-multipotent-stromal-cells-obtained-from-different-sources
#1
L Lauterboeck, W F Wolkers, B Glasmacher
Stem cells are important for regenerative medicine mainly due to their multilineage differentiation capacity. However, the cells rapidly loose this capability during culturing. Cryopreservation preserves the differentiation potential of the cells, until they are needed. In this study, specific cell properties of multipotent stromal cells (MSCs), from the common marmoset monkey Callithrix jacchus MSCs derived from amnion (Am) and bone marrow (Bm) were studied in order to predict optimal cooling rates for cryopreservation...
December 1, 2016: Cryobiology
https://www.readbyqxmd.com/read/27907214/derivation-of-induced-trophoblast-cell-lines-in-cattle-by-doxycycline-inducible-piggybac-vectors
#2
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/27904034/regulation-of-matrix-metalloproteinases-2-and-9-gene-expression-in-cultured-human-fetal-membrane-cells-by-influenza-virus-infection
#3
Noboru Uchide, Kyoko Obatake, Rie Yamada, Hidetaka Sadanari, Keiko Matsubara, Tsugiya Murayama, Kunio Ohyama
In order to understand a possible etiology of adverse pregnancy outcomes associated with intrauterine influenza virus infection, we examined the effect of influenza virus infection on gene expression of matrix metalloproteinases (MMPs) in cultured amnion epithelial, amnion mesenchymal and chorion trophoblast cells prepared from human fetal membrane tissues by gelatin zymography, Western blotting and reverse transcriptase-PCR. The cells were infected with influenza A (H1N1) virus. The levels of pro-MMP-9 activity in culture supernatants of three types of cells were increased during the period of 24-48 h after the virus infection as compared to those of mock infection...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27895585/feto-maternal-trafficking-of-exosomes-in-murine-pregnancy-models
#4
Samantha Sheller-Miller, Jun Lei, George Saade, Carlos Salomon, Irina Burd, Ramkumar Menon
Timing and initiation of labor are well-orchestrated by signals communicated between the fetal and maternal compartments; however, how these signals are communicated is not completely understood. Fetal exosomes, intercellular signaling vesicles, may play a key role in the process. The objective of this study was to evaluate exosome trafficking in vivo from fetal to maternal compartments. Pregnant CD-1 mice were intra-amniotically injected on gestational day 16 and 17 with exosomes isolated from primary human amnion epithelial cells fluorescently labeled with the lipophilic dye 1,1-dioctadecyl-3,3,3,3-tetramethylindotricarbocyanine iodide (DiR)...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27892433/efficacy-of-prophylactic-b-lynch-suture-during-lower-segment-caesarian-section-in-high-risk-patients-for-atonic-postpartum-haemorrhage
#5
M Vijayasree
Background Postpartum Haemorrhage causes significant maternal mortality and morbidity all over the world. Active management of the third stage of labour with oxytocics is come into practice. If postpartum haemorrhage is anticipated conservative surgical procedures like B-lynch suture is being applied. Objective To evaluate the effect of elective B-Lynch suture in preventing atonic postpartum haemorrhage during emergency caesarian section with high risk factors for atonicity. Method Forty antenatal women undergoing emergency caesarean section with risk factors for atony of the uterus were selected in our study...
January 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/27888184/amnion-assisted-conjunctival-epithelial-redirection-in-limbal-stem-cell-grafting
#6
Harminder S Dua, Ammar Miri, Mohamed S Elalfy, Anna Lencova, Dalia G Said
AIMS: To develop a technique using amniotic membrane (AM) to prevent admixture of conjunctival epithelial cells and limbal explant-derived corneal epithelial cells in patients undergoing limbal stem cell transplantation. To compare this technique with the current method of 'sequential sector conjunctival epitheliectomy' (SSCE). METHODS: 26 patients with total limbal stem cell deficiency who underwent ocular surface reconstruction with limbal stem cells transplantation were retrospectively studied...
November 25, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27871479/comparison-of-matrigel-and-matriderm-as-a-carrier-for-human-amnion-derived-mesenchymal-stem-cells-in-wound-healing
#7
Alexandru-Cristian Tuca, Juliane Ertl, Kerstin Hingerl, Melanie Pichlsberger, Jakob Fuchs, Paul Wurzer, Dagmar Pfeiffer, Vladimir Bubalo, Daryousch Parvizi, Lars-Peter Kamolz, Ingrid Lang
Amnion-derived mesenchymal stem cells (AMSC) are a promising tool in regenerative medicine. Here we evaluated the utility of Matrigel and Matriderm as carrier for the topical application of AMSC to mice skin wounds. In both application forms, AMSC promoted neovascularization of the wound area. Matrigel proved as excellent matrix for AMSC and immigrating mouse cells, but the solid Matriderm enabled a more adequate positioning of AMSC into the wound. Although AMSC did not attach to Matriderm, they reliably induced wound reduction...
December 2016: Placenta
https://www.readbyqxmd.com/read/27865975/differences-in-placental-telomere-length-suggest-a-link-between-racial-disparities-in-birth-outcomes-and-cellular%C3%A2-aging
#8
Christopher W Jones, Cecilia Gambala, Kyle C Esteves, Maeve Wallace, Reid Schlesinger, Marguerite O'Quinn, Laura Kidd, Katherine P Theall, Stacy S Drury
BACKGROUND: Health disparities begin early in life and persist across the life course. Despite current efforts, black women exhibit greater risk for pregnancy complications and negative perinatal outcomes compared with white women. The placenta, which is a complex multi-tissue organ, serves as the primary transducer of bidirectional information between the mother and fetus. Altered placental function is linked to multiple racially disparate pregnancy complications; however, little is known about racial differences in molecular factors within the placenta...
November 16, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27863646/regenerative-efficacy-of-mesenchymal-stromal-cells-from-human-placenta-in-sensorineural-hearing-loss
#9
Kicheol Kil, Mi Young Choi, Ji Sun Kong, Woo Jin Kim, Kyoung Ho Park
INTRODUCTION: Hearing loss is a common chronic disorder characterized by decline of auditory function. The global population have suffered from deafness and the transplantation of stem cells is regarded as a therapeutic strategy for this disease. METHODS: We collected placenta from a total of 13 samples of full term pregnant women and isolated MSCs derived from human placenta and transplanted MSCs on deaf animal model. The normal group and the sensorineural hearing loss (SNHL) group and the experimental (transplanted MSCs) group were compared and estimated hearing level using auditory brainstem response (ABR) recordings and the otoacoustic emission (OAE) test...
December 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27852013/modulation-of-cell-attachment-proliferation-and-angiogenesis-by-decellularized-dehydrated-human-amniotic-membrane-in-in-vitro-models
#10
Xuan Guo, Aleksandr Kaplunovsky, Raihana Zaka, Chuan Wang, Hemlata Rana, Jeffrey Turner, Qian Ye, Ivana Djuretic, Joseph Gleason, Vladimir Jankovic, Janice M Smiell, Mohit Bhatia, Wolfgang Hofgartner, Robert Hariri
BACKGROUND: Decellularized, dehydrated human amniotic membrane (DDHAM) is an extracellular matrix devoid of cells, cell debris, and growth factors. This study examines the effect of cell attachment to the DDHAM and the induced cellular responses. MATERIALS AND METHODS: The cell types employed in this study were human dermal fibroblasts (HDF), human epithelial keratinocytes (HEK), and human dermal microvascular endothelial cells (HDMEC), all of which play critical roles in the wound healing process...
October 24, 2016: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/27845396/first-steps-to-define-murine-amniotic-fluid-stem-cell-microenvironment
#11
E Bertin, M Piccoli, C Franzin, G Spiro, S Donà, A Dedja, F Schiavi, E Taschin, P Bonaldo, P Braghetta, P De Coppi, M Pozzobon
Stem cell niche refers to the microenvironment where stem cells reside in living organisms. Several elements define the niche and regulate stem cell characteristics, such as stromal support cells, gap junctions, soluble factors, extracellular matrix proteins, blood vessels and neural inputs. In the last years, different studies demonstrated the presence of cKit(+) cells in human and murine amniotic fluid, which have been defined as amniotic fluid stem (AFS) cells. Firstly, we characterized the murine cKit(+) cells present both in the amniotic fluid and in the amnion...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27834419/limitations-and-options-using-resorbable-versus-nonresorbable-membranes-for-successful-guided-bone-regeneration
#12
Nikolaos K Soldatos, Popi Stylianou, Vasiliki P Koidou, Nikola Angelov, Raymond Yukna, Georgios E Romanos
OBJECTIVE: Deficient bony ridges often complicate the implant treatment plan. Several treatment modalities are used to regenerate bone, including guided bone regeneration (GBR). The purpose of this study was to summarize the knowledge on different types of membranes available and currently used in GBR procedures in a staged approach or with simultaneous implant placement. The primary role of the membranes is to exclude epithelial and connective tissue cells from the wound area to be regenerated, and to create and maintain the space into which pluripotential and osteogenic cells are free to migrate...
November 10, 2016: Quintessence International
https://www.readbyqxmd.com/read/27832946/role-of-human-amnion-derived-mesenchymal-stem-cells-in-promoting-osteogenic-differentiation-by-influencing-p38-mapk-signaling-in-lipopolysaccharide-induced-human-bone-marrow-mesenchymal-stem-cells
#13
Yuli Wang, Hongxia Wu, Ming Shen, Siyang Ding, Jing Miao, Ning Chen
Periodontitis is a chronic inflammatory disease induced by bacterial pathogens,which not only affect connective tissue attachments but also cause alveolar bone loss.In this study, we investigated the anti-inflammatory effects of Human amnion-derived mesenchymal stem cells (HAMSCs) on human bone marrow mesenchymal stem cells (HBMSCs) under lipopolysaccharide (LPS)-induced inflammatory conditions. Proliferation levels were measured by flow cytometry and immunofluorescence staining of 5-ethynyl-2'-deoxyuridine (EdU)...
November 7, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27826487/aseptically-processed-placental-membrane-improves-healing-of-diabetic-foot-ulcerations-prospective-randomized-clinical-trial
#14
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: Allogeneic grafts derived from amnion/chorion are known to be efficacious in healing chronic diabetic foot ulcerations (DFUs). The goal of this study was to compare aseptically processed dehydrated human amnion and chorion allograft (dHACA) versus standard of care (SOC) in facilitating wound closure in nonhealing DFUs. METHODS: Patients with DFUs treated with SOC (off-loading, appropriate debridement, and moist wound care) after a 2-week screening period were randomized to either SOC or wound-size-specific dHACA (AmnioBand, Musculoskeletal Transplant Foundation, Edison, N...
October 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27821556/amnion-epithelial-cells-promote-lung-repair-via-lipoxin-a4
#15
Jean L Tan, Yan Z Tan, Ruth Muljadi, Siow T Chan, Sin N Lau, Joanne C Mockler, Euan M Wallace, Rebecca Lim
: : Human amnion epithelial cells (hAECs) have been shown to possess potent immunomodulatory properties across a number of disease models. Recently, we reported that hAECs influence macrophage polarization and activity, and that this step was dependent on regulatory T cells. In this study, we aimed to assess the effects of hAEC-derived proresolution lipoxin-A4 (LXA4) on T-cell, macrophage, and neutrophil phenotype and function during the acute phase of bleomycin-induced lung injury. Using C57Bl6 mice, we administered 4 million hAECs intraperitoneally 24 hours after bleomycin challenge...
November 7, 2016: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/27814615/linking-expression-of-aquaporin-3-to-activation-of-jnk-pathway
#16
Qi Shen, Jingjing Wang, Qingfeng Zhou, Zhaojun Shen, Hui Luo, Xuejiao Tao, Xueqiong Zhu
Aquaporin 3 (AQP3) has been shown to be low in the amnion and chorion tissues of patients with oligohydramnios and that S. miltiorrhiza, a Chinese herbal medicine, results in increased AQP3 in human amniotic epithelial cells (hAECs). Here, we provide evidence for the involvement of the JNK pathway in AQP3 regulation in isolated oligohydramnios tissues in vitro, in hAECs derived from normal amniotic fluid and fluid from patients with isolated oligohydramnios. Phosphorylation of JNK was suppressed by pretreatment of cells with JNK-specific inhibitor (SP600125) and was up-regulated by S...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27810642/topical-administration-of-cryopreserved-living-micronized-amnion-accelerates-wound-healing-in-diabetic-mice-by-modulating-local-microenvironment
#17
Yongjun Zheng, Shizhao Ji, Haibin Wu, Song Tian, Yunqing Zhang, Li Wang, He Fang, Pengfei Luo, Xingtong Wang, Xiaoyan Hu, Shichu Xiao, Zhaofan Xia
Approximately 25% of diabetic patients suffer from diabetic lower-extremity ulcer throughout their lives and 7%-20% of patients will eventually need an amputation despite standard care treatment. The development of new therapies to treat diabetic wounds is urgent. In this study, we used cryopreserved living micronized amnion (300-600 μm) to treat wounds in diabetic mice. Post-thaw micronized amnion retained high cell viability, as well as intact cell morphology and membrane structure. When transplanted onto the wounds of db/db mice, the cryopreserved living micronized amnion greatly promoted wound healing in diabetic mice mainly by secreting growth, inflammation, and chemotaxis-related factors that regulated macrophage migration and phenotype switch, recruited CD34(+) progenitor cells, and increased neovascularization...
October 21, 2016: Biomaterials
https://www.readbyqxmd.com/read/27796524/infections-in-the-tissue-material-and-their-impact-on-the-loss-of-transplants-in-the-laboratory-of-in-vitro-cell-and-tissue-culture-with-tissue-bank-in-the-years-2011-2015
#18
D Kitala, A Klama-Baryła, M Kawecki, M Kraut, W Łabuś, J Glik, M Ples, E Tomanek, M Nowak
Radiation sterilization eliminates microbiological infections but causes the degradation of the cell factor. The negative result of microbiological examination for tissue transplants is one of the conditions for approval for distribution in patients. The study attempts to verify impact of the presence of microbes onto material for transplant loss. In the 2011-2015 period, we analyzed 293 donors of skin and amnion. Microbiological sampling was performed. The total of 21 strains of bacteria, molds and fungi was identified in collected tissue...
October 31, 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27794546/effects-of-coccidiosis-vaccination-administered-by-in-ovo-injection-on-the-hatchability-and-hatching-chick-quality-of-broilers
#19
A O Sokale, W Zhai, L M Pote, C J Williams, E D Peebles
Effects of the in ovo injection of a commercial coccidiosis vaccine on the hatchability and hatching chick quality variables of Ross × Ross 708 broilers were examined. Four treatment (TRT) groups were represented on each of 7 replicate tray levels of a single-stage incubator (28 TRT-replicate groups). Each TRT-replicate contained 63 eggs (1,764 total eggs). On d 18.5 of incubation, eggs were subjected to one of 4 TRT using a commercial multi-egg injector. Three control groups (non-injected, dry-punch, and diluent-injected) and one TRT group (injected with diluent containing Inovocox EM1 vaccine) were used...
October 28, 2016: Poultry Science
https://www.readbyqxmd.com/read/27780541/atf3-is-a-negative-regulator-of-inflammation-in-human-fetal-membranes
#20
Ratana Lim, Gillian Barker, Stella Liong, Caitlyn Nguyen-Ngo, Stephen Tong, Tu'uhevaha Kaitu'u-Lino, Martha Lappas
INTRODUCTION: Infection and inflammation stimulate pro-inflammatory cytokines, prostaglandins and matrix metalloproteinase (MMP)-9, which play a central role in myometrial contractions and rupture of fetal membranes. In human and mouse immune cells, activating transcription factor 3 (ATF3) is a negative regulator of inflammation. No studies have examined the role of ATF3 in human labour. METHODS: Primary amnion cells were used to determine the effect of interleukin (IL)-1β and the bacterial product fibroblast-stimulating lipopeptide (fsl-1) on ATF3 expression, and the effect of ATF3 siRNA on pro-labour mediators...
November 2016: Placenta
keyword
keyword
573
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"