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placenta medicine

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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
#1
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/28411944/differentiation-of-amniotic-epithelial-cells-into-various-liver-cell-types-and-potential-therapeutic-applications
#2
Maura Fanti, Roberto Gramignoli, Monica Serra, Erika Cadoni, Stephen C Strom, Fabio Marongiu
The aim of Regenerative Medicine is to replace or regenerate human cells, tissues or organs in order to restore normal function. Among all organs, the liver is endowed with remarkable regenerative capacity. Nonetheless, there are conditions in which this ability is impaired, and the use of isolated cells, including stem cells, is being considered as a possible therapeutic tool for the management of chronic hepatic disease. Placenta holds great promise for the field of regenerative medicine. It has long been used for the treatment of skin lesions and in ophthalmology, due to its ability to modulate inflammation and promote healing...
March 30, 2017: Placenta
https://www.readbyqxmd.com/read/28375638/the-placenta-applications-in-orthopaedic-sports-medicine
#3
James Alexander McIntyre, Ian A Jones, Alla Danilkovich, C Thomas Vangsness
BACKGROUND: Placenta has a long history of use for treating burns and wounds. It is a rich source of collagen and other extracellular matrix proteins, tissue reparative growth factors, and stem cells, including mesenchymal stem cells (MSCs). Recent data show its therapeutic potential for orthopaedic sports medicine indications. PURPOSE: To provide orthopaedic surgeons with an anatomic description of the placenta, to characterize its cellular composition, and to review the literature reporting the use of placenta-derived cells and placental tissue allografts for orthopaedic sports medicine indications in animal models and in humans...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28306541/clinical-characteristics-and-outcome-of-twin-pregnancies-complicated-by-single-intrauterine-death
#4
Qiong Luo, Xiujun Han
AIM: To investigate the clinical characteristics and outcome of twin pregnancies complicated by single intrauterine death and how to improve the outcomes of surviving twins. Three thousand three hundred and eighty-four women who delivered twin pregnancies at Women's Hospital, Zhejiang University, School of Medicine were included. Clinical and demographic data on gestational age, etiology, morbidity and mortality for mothers and fetuses were collected. RESULTS: The median gestational age for detecting a single intrauterine death in twin pregnancy was 29 weeks and the average gestational age of pregnancy termination was 32 weeks...
March 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28255771/amniotic-membrane-in-ophthalmology-properties-preparation-storage-and-indications-for-grafting-a-review
#5
REVIEW
Katerina Jirsova, Gary L A Jones
The use of amniotic membrane in ophthalmic surgery and other surgical procedures in the fields of dermatology, plastic surgery, genitourinary medicine and otolaryngology is on the increase. Furthermore, amniotic membrane and its epithelial and mesenchymal cells have broad use in regenerative medicine and hold great promise in anticancer treatment. Amniotic membrane is a rich source of biologically active factors and as such, promotes healing and acts as an effective material for wound dressing. Amniotic membrane supports epithelialization and exhibits anti-fibrotic, anti-inflammatory, anti-angiogenic and anti-microbial features...
March 2, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28229410/therapeutic-application-of-placental-mesenchymal-stem-cells-reprogrammed-neurospheres-in-spinal-cord-injury-of-scid
#6
Vikram Sabapathy, Franklin Jebaraj Herbert, Sanjay Kumar
Mesenchymal stromal cells (MSCs) and induced pluripotent stem cells (iPSCs) have stimulated much interest in the scientific community and hopes among the general public since their discovery in 1966 due to a variety of potential applications it has in the field of regenerative medicine. Copious amount of literature, as well as long-term animal and human clinical trials, indicates that MSCs can be successfully used for therapeutic purpose without any extreme adversities. MSCs have been isolated from adult and fetal tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28225815/different-characteristics-of-mesenchymal-stem-cells-isolated-from-different-layers-of-full-term-placenta
#7
Yoo Shin Choi, Yong-Beom Park, Chul-Won Ha, Jin A Kim, Jin-Chul Heo, Woo-Jung Han, Soo-Young Oh, Suk-Joo Choi
BACKGROUND: The placenta is a very attractive source of mesenchymal stem cells (MSCs) for regenerative medicine due to readily availability, non-invasive acquisition, and avoidance of ethical issues. Isolating MSCs from parts of placenta tissue has obtained growing interest because they are assumed to exhibit different proliferation and differentiation potentials due to complex structures and functions of the placenta. The objective of this study was to isolate MSCs from different parts of the placenta and compare their characteristics...
2017: PloS One
https://www.readbyqxmd.com/read/28205414/avoidance-of-maternal-cell-contamination-and-overgrowth-in-isolating-fetal-chorionic-villi-mesenchymal-stem-cells-from-human-term-placenta
#8
Varda S Sardesai, Abbas Shafiee, Nicholas M Fisk, Rebecca A Pelekanos
Human placenta is rich in mesenchymal stem/stromal cells (MSC), with their origin widely presumed fetal. Cultured placental MSCs are confounded by a high frequency of maternal cell contamination. Our recent systematic review concluded that only a small minority of placental MSC publications report fetal/maternal origin, and failed to discern a specific methodology for isolation of fetal MSC from term villi. We determined isolation conditions to yield fetal and separately maternal MSC during ex vivo expansion from human term placenta...
April 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28191766/concise-review-mesenchymal-stem-cell-therapy-for-pediatric-disease-perspectives-on-success-and-potential-improvements
#9
Christopher R Nitkin, Tracey L Bonfield
Mesenchymal stem cells (MSCs) represent a potentially revolutionary therapy for a wide variety of pediatric diseases, but the optimal cell-based therapeutics for such diversity have not yet been specified. The published clinical trials for pediatric pulmonary, cardiac, orthopedic, endocrine, neurologic, and hematologic diseases provide evidence that MSCs are indeed efficacious, but the significant heterogeneity in therapeutic approaches between studies raises new questions. The purpose of this review is to stimulate new preclinical and clinical trials to investigate these factors...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28140723/placenta-previa-and-maternal-hemorrhagic-morbidity
#10
Karen J Gibbins, Brett D Einerson, Michael W Varner, Robert M Silver
OBJECTIVE: Placenta previa is associated with maternal hemorrhage, but most literature focuses on morbidity in the setting of placenta accreta. We aim to characterize maternal morbidity associated with previa and to define risk factors for hemorrhage. METHODS: This is a secondary cohort analysis of the NICHD Maternal-Fetal Medicine Units Network Cesarean Section Registry. This analysis included all women undergoing primary Cesarean delivery without placenta accreta...
February 21, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28137987/diagnostic-performance-of-placental-growth-factor-in-women-with-suspected-preeclampsia-attending-antenatal-facilities-in-maputo-mozambique
#11
U Vivian Ukah, Francisco Mbofana, Beatriz Manriquez Rocha, Osvaldo Loquiha, Chishamiso Mudenyanga, Momade Usta, Marilena Urso, Sharla Drebit, Laura A Magee, Peter von Dadelszen
In well-resourced settings, reduced circulating maternal-free placental growth factor (PlGF) aids in either predicting or confirming the diagnosis of preeclampsia, fetal growth restriction, stillbirth, preterm birth, and delivery within 14 days of testing when preeclampsia is suspected. This blinded, prospective cohort study of maternal plasma PlGF in women with suspected preeclampsia was conducted in antenatal clinics in Maputo, Mozambique. The primary outcome was the clinic-to-delivery interval. Other outcomes included: confirmed diagnosis of preeclampsia, transfer to higher care, mode of delivery, intrauterine fetal death, preterm birth, and low birth weight...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28117628/the-isolation-and-production-of-the-ready-to-use-product-the-amniotic-stem-cell-culture-in-accordance-with-good-manufacturing-practice-regulations
#12
Diana Kitala, Marek Kawecki, Agnieszka Klama-Baryła, Wojciech Łabuś, Justyna Glik, Małgorzata Kraut, Marcelina Misiuga, Mariusz Nowak
According to the Committee for Advanced Therapies, amniotic stem cells were classified as an advanced therapy medicinal product. This work aims to standardize the isolation of amniotic stem cells and the selection of the optimal time of transplantation and cell application methods in burn patients according to the guidelines of the Good Manufacturing Practice. The placenta used in the study was sourced during a Cesarean section. The remnants of the amnion preparation were placed in a sterile container and transferred to a class B environment, where the primary cultures began...
May 1, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28052283/the-feasibility-of-conservative-management-for-morbidly-adherent-placenta-accidentally-encountered-after-vaginal-delivery
#13
Ran Cui, Junli Lu, Zhenyu Zhang, Huimin Bai
OBJECTIVE: To evaluate the feasibility of conservative management for patients with morbidly adherent placenta (MAP) accidentally encountered after term vaginal delivery. METHODS: Medical records of patients with MAP who were accidentally encountered after term vaginal delivery and treated in our hospital from January 2009 to December 2015 were retrospectively reviewed. RESULTS: A total of 8 eligible patients were included in this analysis...
January 5, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28025449/metformin-enhances-osteogenesis-and-suppresses-adipogenesis-of-human-chorionic-villous-mesenchymal-stem-cells
#14
Qiaoli Gu, Yanzheng Gu, Huilin Yang, Qin Shi
Metformin is the first-line anti-hyperglycemic drugs commonly used to treat type 2 diabetes. Recent studies have shown that metformin can enhance bone formation through induction of endothelial nitric oxide synthase (eNOS). Human chorionic villous mesenchymal stem cells (CV-MSCs) are promising candidates for regenerative medicine. The present study aimed to investigate the effects of metformin on the osteogenic and adipocytic differentiation of human CV-MSCs, and to elucidate the underlying mechanism. CV-MSCs, prepared from human term placentae, were cultured with different concentrations of metformin...
January 2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28017869/endosteal-like-extracellular-matrix-expression-on-melt-electrospun-written-scaffolds
#15
Maria Lourdes Muerza-Cascante, Ali Shokoohmand, Kiarash Khosrotehrani, David Haylock, Paul D Dalton, Dietmar W Hutmacher, Daniela Loessner
Tissue engineering technology platforms constitute a unique opportunity to integrate cells and extracellular matrix (ECM) proteins into scaffolds and matrices that mimic the natural microenvironment in vitro. The development of tissue-engineered 3D models that mimic the endosteal microenvironment enables researchers to discover the causes and improve treatments for blood and immune-related diseases. The aim of this study was to establish a physiologically relevant in vitro model using 3D printed scaffolds to assess the contribution of human cells to the formation of a construct that mimics human endosteum...
April 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/27969554/obstetric-and-anaesthesia-checklists-for-the-management-of-morbidly-adherent-placenta
#16
Melissa G Walker, Lindsay Pollard, Chiraag Talati, Jose C A Carvalho, Lisa M Allen, John Kachura, Ally Murji, John C Kingdom, Rory Windrim
OBJECTIVE: To develop an integrated checklist for the management of patients with suspected morbidly adherent placenta (MAP). METHODS: A checklist process was developed incrementally by clinicians in the disciplines of maternal-fetal medicine, gynaecology, medical imaging, and anaesthesia for management of women with suspected MAP. RESULTS: Over a five-year period of debriefing after individual cases, a comprehensive checklist system was developed...
November 2016: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/27965906/could-elastography-be-used-in-the-prediction-of-morbidly-adherent-placentation
#17
Stacey Davie, Wei Ling Wong, Teresa Clapham, Donald Angstetra, Rajit Narayan
Morbidly adherent placentation (MAP) is a condition in which the placenta is abnormally attached to the uterine myometrium. MAP is a complication of pregnancy that can cause significant morbidity to the mother and fetus and therefore early diagnosis is crucial in its management and prevention of adverse outcomes. Ultrasonography remains the primary diagnostic tool for MAP, with magnetic resonance imaging (MRI) serving as a secondary diagnostic modality. Elastography is a relatively new concept in ultrasound based imaging, which has found application in several fields of medicine, including obstetrics, primarily for evaluation of the firmness of cervical tissue in a preterm labour setting...
2016: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27965171/human-placenta-hydrogel-reduces-scarring-in-a-rat-model-of-cardiac-ischemia-and-enhances-cardiomyocyte-and-stem-cell-cultures
#18
Michael P Francis, Erick Breathwaite, Anna A Bulysheva, Frency Varghese, Rudy U Rodriguez, Sucharita Dutta, Iurii Semenov, Rebecca Ogle, Alexander Huber, Alexandra-Madelaine Tichy, Silvia Chen, Christian Zemlin
INTRODUCTION: Xenogeneic extracellular matrix (ECM) hydrogels have shown promise in remediating cardiac ischemia damage in animal models, yet analogous human ECM hydrogels have not been well development. An original human placenta-derived hydrogel (hpECM) preparation was thus generated for assessment in cardiomyocyte cell culture and therapeutic cardiac injection applications. METHODS AND RESULTS: Hybrid orbitrap-quadrupole mass spectrometry and ELISAs showed hpECM to be rich in collagens, basement membrane proteins, and regenerative growth factors (e...
April 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/27925305/extracellular-matrix-in-epitheliochorial-endotheliochorial-and-haemochorial-placentation-and-its-potential-application-for-regenerative-medicine
#19
REVIEW
Ara da Anunciação, A M Mess, D Orechio, B A Aguiar, P O Favaron, M A Miglino
A placenta is defined as structural approximation of maternal and foetal tissues to perform physiological exchange. Associated processes of differentiation and the establishment of its cells take place within the extracellular matrix (ECM) that provides a rich environment of collagens, fibronectins, cytokines and other components. Placental ECM is promising for tissue regeneration purposes, because it has immune tolerance capacities that may cause only minimal rejections of transplants with immunological differences between donor and recipient...
December 7, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27921031/amniotic-epithelial-cells-a-new-tool-to-combat-aging-and-age-related-diseases
#20
Clara Di Germanio, Michel Bernier, Rafael de Cabo, Barbara Barboni
The number of elderly people is growing at an unprecedented rate and this increase of the aging population is expected to have a direct impact on the incidence of age-related diseases and healthcare-associated costs. Thus, it is imperative that new tools are developed to fight and slow age-related diseases. Regenerative medicine is a promising strategy for the maintenance of health and function late in life; however, stem cell-based therapies face several challenges including rejection and tumor transformation...
2016: Frontiers in Cell and Developmental Biology
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