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https://www.readbyqxmd.com/read/28807808/safety-and-efficacy-of-amnion-graft-in-preventing-reformation-of-intra-uterine-adhesions
#1
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
#2
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
https://www.readbyqxmd.com/read/28795885/the-influence-of-amniotic-membrane-extracts-on-cell-growth-depends-on-the-part-of-membrane-and-childbirth-mode-selected-a-proof-of-concept-study
#3
M Litwiniuk, M Radowicka, A Krejner, T Grzela
OBJECTIVE: The amniotic membrane (AM) is a rich source of biologically active factors, important for wound healing and is widely used in various clinical applications, including tissue engineering, reconstructive surgery and wound management. The aim of the present proof-of-concept study was to assess the influence of amniotic membrane extracts on in vitro proliferation of main cells involved in tissue regeneration. The assessment was done in regards to the content of selected biologically active factors in amniotic membrane extracts...
August 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28777855/-application-of-bacs-on-beads-and-karyotyping-for-the-prenatal-diagnosis-of-1371-pregnant-women-with-a-high-risk
#4
Penglong Chen, Chunlei Jin, Qunda Shan, Bixia Qian, Xiaohong Zheng, Xiaohong Wang, Yi Wang
OBJECTIVE: To assess the value of combined BACs-on-Beads(TM) (BoBs) and chromosomal karyotyping for the diagnosis of women with high-risk pregnancy. METHODS: For 1371 women with singleton pregnancy and various indications for prenatal diagnosis, karyotyping and BoBs were simultaneously applied on their amnionic fluid samples. RESULTS: In total 23 cases of trisomy 21, 11 cases of trisomy 18, 5 cases of sex chromosome aneuploidies, 6 cases of microdeletions/microduplications, 2 cases of chimeric chromosomes and 1 case of structural chromosomal abnormality were detected by the BoBs assay, among which the 6 microdeletions/microduplications were not detected by karyotyping...
August 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28769790/phenotypic-screening-identifies-synergistically-acting-natural-product-enhancing-the-performance-of-biomaterial-based-wound-healing
#5
Srinivasan Sivasubramanian, Gayathri Chandrasekar, Sara Svensson Akusjärvi, Ramar Thangam, Malairaj Sathuvan, R B S Kumar, Hawraa Hussein, Savariar Vincent, Balaraman Madhan, Palani Gunasekaran, Satish S Kitambi
The potential of multifunctional wound heal biomaterial relies on the optimal content of therapeutic constituents as well as the desirable physical, chemical, and biological properties to accelerate the healing process. Formulating biomaterials such as amnion or collagen based scaffolds with natural products offer an affordable strategy to develop dressing material with high efficiency in healing wounds. Using image based phenotyping and quantification, we screened natural product derived bioactive compounds for modulators of types I and III collagen production from human foreskin derived fibroblast cells...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28757329/infections-following-surgical-patent-ductus-arteriosus-ligation-in-vlbw-neonates
#6
Katarzyna Kopeć-Godlewska, Jadwiga Wójkowska-Mach
BACKGROUND: Very low birth weight (VLBW) neonates (<1,500 g) comprise approximately 1% of liveborn infants in Poland. Patent ductus arteriosus (PDA) is a common complication of prematurity. This study aimed to determine how many VLBW neonates treated in the participating units needed a surgical correction of PDA, and to evaluate the incidence of various types of post-operative infections, and their microbiology. METHODS: Observational study in five neonatology departments by the Polish Neonatology Surveillance Network, involving 2039 VLBW newborns of whom 103 (5...
July 27, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28715585/retinoic-acid-engineered-amniotic-membrane-used-as-graft-or-homogenate-positive-effects-on-corneal-alkali-burns
#7
Romain Joubert, Estelle Daniel, Nicolas Bonnin, Aurélie Comptour, Christelle Gross, Corinne Belville, Frédéric Chiambaretta, Loïc Blanchon, Vincent Sapin
Purpose: Alkali burns are the most common, severe chemical ocular injuries, their functional prognosis depending on corneal wound healing efficiency. The purpose of our study was to compare the benefits of amniotic membrane (AM) grafts and homogenates for wound healing in the presence or absence of previous all-trans retinoic acid (atRA) treatment. Methods: Fifty male CD1 mice with reproducible corneal chemical burn were divided into five groups, as follows: group 1 was treated with saline solution; groups 2 and 3 received untreated AM grafts or grafts treated with atRA, respectively; and groups 4 and 5 received untreated AM homogenates or homogenates treated with atRA, respectively...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28714022/platelet-poor-plasma-gel-combined-with-amnion-improves-the-therapeutic-effects-of-human-umbilical-cord%C3%A2-derived-mesenchymal-stem-cells-on-wound-healing-in-rats
#8
Lujun Yang, Jie Ma, Saiyang Gan, Shuli Chu, Martin Maldonado, Jianda Zhou, Lian Ma, Shijie Tang
The aim of the present study was to investigate the efficacy of human umbilical cord‑derived mesenchymal stem cell (HUMSCs) embedded in platelet poor plasma (PPP) gel combined with amnion (PPPA) in improving wound healing on Sprague‑Dawley (SD) rats. HUMSCs were cultured and labeled with chloromethylbenzamido‑1,1'‑dioctadecyl‑3,3,3'3'‑tetramethylindocarbocyanine perchlorate (CM‑DiI) on their third passage. The expression levels of growth factors of HUMSCs in PPPA were assessed by ELISA. Full‑thickness excisional skin wounds were induced in 36 male SD rats, which were treated with PPPA grafted with HUMSCs (PPPAC), PPPA, or HUMSC or PBS injection...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713918/endothelial-growth-medium-suppresses-apoptosis-of-mesenchymal-stem-cells-in-vitro-via-decrease-of-mir%C3%A2-29a
#9
Qianqian Wu, Tao Fang, Min Chen, Guoxian Qi
The administration of mesenchymal stem cells (MSCs) in cases of cardiac ischemia/reperfusion injury (IRI) has been associated with a significant reduction of myocardial cell death and an effective improvement in cardiac function. However, one major limiting factor in MSCs transplantation therapy is the low survival rate of the transplanted cells. The present study aimed to demonstrate that human amnion‑derived mesenchymal stem cells (hAMSCs) cultured with endothelial growth medium (EGM‑2) exhibited reduced apoptosis when exposed to serum‑free and hypoxic conditions; and that the expression of microRNA (miR)‑29a decreased significantly...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28712670/production-and-regulation-of-interleukin-1-family-cytokines-at-the-materno-fetal-interface
#10
Louis M Scott, Aled H Bryant, April Rees, Billy Down, Ruth H Jones, Catherine A Thornton
IL-1 family members regulate innate immune responses, are produced by gestation-associated tissues, and have a role in healthy and adverse pregnancy outcomes. To better understand their role at the materno-fetal interface we used a human tissue explant model to map lipopolysaccharide (LPS)-stimulated production of IL-1α, IL-1β, IL-18, IL-33, IL-1Ra, IL-18BPa, ST2 and IL-1RAcP by placenta, choriodecidua and amnion. Caspase-dependent processing of IL-1α, IL-1β, IL-18, and IL-33 and the ability of IL-1α, IL-1β, IL-18, and IL-33 to regulate the production of IL-1RA, IL-18BPa, ST2 and IL-1RAcP was also determined...
July 13, 2017: Cytokine
https://www.readbyqxmd.com/read/28708036/amniotic-fluid-cells-show-higher-pluripotency-related-gene-expression-than-allantoic-fluid-cells
#11
Debora Kehl, Melanie Generali, Sabrina Görtz, Diego Geering, Jaroslav Slamecka, Simon P Hoerstrup, Ulrich Bleul, Benedikt Weber
Amniotic fluid represents an abundant source of multipotent stem cells, referred as broadly multipotent given their differentiation potential and expression of pluripotency-related genes. However, the origin of this broadly multipotent cellular fraction is not fully understood. Several sources have been proposed so far, including embryonic and extraembryonic tissues. In this regard, the ovine developmental model uniquely allows for direct comparison of fetal fluid-derived cells from two separate fetal fluid cavities, the allantois and the amnion, over the entire duration of gestation...
August 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28682294/proteomic-comparison-of-amnion-and-chorion-and-evaluation-of-the-effects-of-processing-on-placental-membranes
#12
John P McQuilling, Jeremy B Vines, Kelly A Kimmerling, Katie C Mowry
OBJECTIVE: The purpose of this study is to compare the growth factor and cytokine content found within the amnion and chorion layers and to determine the effects of dehydration on them. MATERIALS AND METHODS: Placentas were collected from 5 to 6 consented donors following elective cesarean section, and 1-cm2 sections of either amnion or chorion were immediately stored at -80°C or dehydrated prior to -80°C storage until proteomic analysis. Signaling molecules from tissue samples were evaluated using quantitative multiplex proteomics microarrays, and data were analyzed based on a per cm2 basis and also on pg/mg of extracted protein for potency...
June 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28677080/comparison-of-impact-of-two-decontamination-solutions-on-the-viability-of-the-cells-in-human-amnion
#13
Ingrida Smeringaiova, Peter Trosan, Miluse Berka Mrstinova, Jan Matecha, Jan Burkert, Jan Bednar, Katerina Jirsova
Human amniotic membrane (HAM) is used as an allograft in regenerative medicine or as a source of pluripotent cells for stem cell research. Various decontamination protocols and solutions are used to sterilize HAM before its application, but little is known about the toxicity of disinfectants on HAM cells. In this study, we tested two decontamination solutions, commercial (BASE·128) and laboratory decontamination solution (LDS), with an analogous content of antimycotic/antibiotics for their cytotoxic effect on HAM epithelial (EC) and mesenchymal stromal cells (MSC)...
July 4, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28669952/-immunomodulatory-effects-of-human-amniotic-versus-bone-marrow-derived-mesenchymal-stem-cells-on-peripheral-blood-t-lymphocytes-in-vitro
#14
Jie Song, Ya Gao, Wei-Bin Zhou, Chun-Yan Yang, Ying Xu, Bao-Hong Ping, Hai-Tao Sun
OBJECTIVE: To compare the immunomodulatory effects of human amniotic mesenchymal stem cell (hAMSCs) and human bone marrow mesenchymal stem cells (hBMSCs) on peripheral blood T lymphocytes in an in vitro co-culture system. METHODS: hAMSCs and hBMSCs isolated using enzymatic digestion and Ficoll-Hypaque density gradient centrifugation, respectively, were culture-expanded in vitro to obtain the 4th-generation cells. The two MSCs were co-cultured separately with human peripheral blood mononuclear cells stimulated with phytohemagglutinin (PHA-PBMSC) to investigate the changes in T lymphocyte subsets using flow cytomety and the production of interleukin-2 (IL-2) and IL-10 by the T lymphocytes using enzyme-linked immunosorbent assay (ELISA)...
June 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28667922/combination-of-hydroxyapatite-platelet-rich-fibrin-and-amnion-membrane-as-a-novel-therapeutic-option-in-regenerative-periapical-endodontic-surgery-case-series
#15
Uday Kiran Uppada, Butchibabu Kalakonda, Pradeep Koppolu, Narendra Varma, Kiran Palakurthy, Venkatesh Manchikanti, Shilpa Prasad, Shereen Samar, Lingam Amara Swapna
INTRODUCTION: Periapical surgery is the last resort in the arsenal of an endodontist to effectively deal with periapical lesions that result from necrosis of the pulp. Bone grafts, growth factors and membranes form an array of regenerative materials that influence the healing outcome of periapical surgery. PRESENTATION OF CASE: The main purpose of the two cases reported here was to assess the potential benefits of a combination of bone graft, platelet-rich fibrin (PRF) and amnion membrane in terms of reduced post-operative discomfort, radiographic evidence of accelerated periapical bone healing and present a novel therapeutic option in the management of large periapical lesions...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28656504/can-dehydrated-human-amnion-chorion-membrane-accelerate-the-return-to-potency-after-a-nerve-sparing-robotic-assisted-radical-prostatectomy-propensity-score-matched-analysis
#16
Gabriel Ogaya-Pinies, Hariharan Palayapalam-Ganapathi, Travis Rogers, Eduardo Hernandez-Cardona, Bernardo Rocco, R F Coelho, Cathy Jenson, Vipul R Patel
The objective of this study is to determine if the use of dehydrated human amnion/chorion membrane (dHACM) allograft wrapped around the NVB during a robotic-assisted radical prostatectomy (RARP) accelerates the return to potency. 940 patients with preoperative SHIM >20 underwent RARP with some degree of bilateral NS. Of these, 235 patients underwent RARP, with bilateral placement of dHACM graft around the NVBs. They were matched in a 1:3 proportion with a similar group of patients (n = 705) who did not receive the allograft (control group or group 2)...
June 27, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28632450/combinations-of-activin-a-or-nicotinamide-with-the-pancreatic-transcription-factor-pdx1-support-differentiation-of-human-amnion-epithelial-cells-toward-a-pancreatic-lineage
#17
Shruti Balaji, Yu Zhou, Emmanuel C Opara, Shay Soker
The differentiation of multipotent stem cells toward a pancreatic lineage provides us with an alternative cell-based therapeutic approach to type 1 diabetes and enables us to study pancreas development. The current study aims to study the effect of growth factors such as activin A or nicotinamide, alone and in combinations with the transcription factor, PDX1 (pancreatic and duodenal homeobox-1), on human amnion epithelial cells (hAECs) toward a pancreatic lineage. Ectopic expression of Pdx1 followed by treatment of hAECs with nicotinamide for 4 days resulted in strong induction of pancreatic endoderm and pancreatic progenitor genes, including NKX6...
August 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28629288/p53-mutation-and-epigenetic-imprinted-igf2-h19-gene-analysis-in-mesenchymal-stem-cells-derived-from-amniotic-fluid-amnion-endometrium-and-wharton-s-jelly
#18
Tatsanee Phermthai, Puttachart Pokathikorn, Suparat Wichitwiengrat, Sasiprapa Thongbopit, Kittima Tungprasertpol, Suphakde Julavijitphong
Mesenchymal stem cells (MSC) are promising cells for medical therapy. In in vitro expansion, MSC can give rise to progeny with genomic and epigenomic alterations, resulting in senescence, loss of terminal differentiation, and transformation to cancer. However, MSC genome protects its genetic instability by a guardian function of the P53 tumor suppressor gene and epigenetic balance system during MSC culture. Mutations of P53 and epigenetic alterations have been reported to disrupt the quality and quantity of MSC and initiate tumorigenesis...
June 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28627622/human-amnion-derived-mesenchymal-stem-cells-protect-against-uva-irradiation-induced-human-dermal-fibroblast-senescence-in%C3%A2-vitro
#19
Chunli Zhang, Haishen Yuchi, Lu Sun, Xiaoli Zhou, Jinde Lin
The aim of the present study was to determine if human amnion‑derived mesenchymal stem cells (HAMSCs) exert a protective effect on ultraviolet A (UVA) irradiation-induced human dermal fibroblast (HDF) senescence. A senescence model was constructed as follows: HDFs (104‑106 cells/well) were cultured in a six‑well plate in vitro and then exposed to UVA irradiation at 9 J/cm2 for 30 min. Following the irradiation period, HDFs were co‑cultured with HAMSCs, which were seeded on transwells. A total of 72 h following the co‑culturing, senescence‑associated β‑galactosidase staining was performed and reactive oxygen species (ROS) content and mitochondrial membrane potential (Δψm) were detected in the HDFs via flow cytometric analysis...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28624115/evaluation-of-amnion-in-creation-of-neovagina-in-women-with-mayer-rokitansky-kuster-hauser-syndrome
#20
Richa Vatsa, Juhi Bharti, Kallol Kumar Roy, Sunesh Kumar, Jai Bhagwan Sharma, Neeta Singh, Seema Singhal, Jyoti Meena
OBJECTIVE: To assess the outcome of amnion vaginoplasty in cases of vaginal agenesis due to Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome managed at the authors' institution. DESIGN: Retrospective study. SETTING: Tertiary care hospital. PATIENT(S): Fifty women with MRKH who underwent neovaginoplasty. INTERVENTION(S): Modified McIndoe's vaginoplasty was done in all the patients, using human amnion graft...
June 14, 2017: Fertility and Sterility
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