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https://www.readbyqxmd.com/read/29765423/comparison-of-teratoma-formation-between-embryonic-stem-cells-and-parthenogenetic-embryonic-stem-cells-by-molecular-imaging
#1
Hongyan Tao, Xiaoniao Chen, Anbang Wei, Xianghe Song, Weiqiang Wang, Lu Liang, Qinjun Zhao, Zhibo Han, Zhongchao Han, Xiaojing Wang, Zongjin Li
With their properties of self-renewal and differentiation, embryonic stem (ES) cells hold great promises for regenerative therapy. However, teratoma formation and ethical concerns of ES cells may restrict their potential clinical applications. Currently, parthenogenetic embryonic stem (pES) cells have attracted the interest of researchers for its self-renewing and pluripotent differentiation while eliciting less ethic concerns. In this study, we established a model with ES and pES cells both stably transfected with a double-fusion reporter gene containing renilla luciferase (Rluc) and red fluorescent protein (RFP) to analyze the mechanisms of teratoma formation...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29756519/adipose-derived-stem-cells-stimulated-with-n-butylidenephthalide-exhibit-therapeutic-effects-in-a-mouse-model-of-parkinson-s-disease
#2
Kang Chi, Ru-Huei Fu, Yu-Chuen Huang, Shih-Yin Chen, Ching-Ju Hsu, Shinn-Zong Lin, Chi-Tang Tu, Li-Hsun Chang, Ping-An Wu, Shih-Ping Liu
Parkinson's disease (PD) causes motor dysfunction and dopaminergic cell death. Drug treatments can effectively reduce symptoms but often cause unwanted side effects. Stem cell therapies using cell replacement or indirect beneficial secretomes have recently emerged as potential therapeutic strategies. Although various types of stem cells have been proposed as possible candidates, adipose-derived stem cells (ADSCs) are easily obtainable, more abundant, less ethically disputed, and able to differentiate into multiple cell lineages...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29754175/stem-cell-therapies-for-neurodegenerative-diseases
#3
Kiminobu Sugaya, Manjusha Vaidya
Stem cell therapies have been proposed as a treatment option for neurodegenerative diseases, but the best stem cell source and therapeutic efficacy for neuroregeneration remain uncertain. Embryonic stem cells (ESCs) and neural stem cells (NSCs), which can efficiently generate neural cells, could be good candidates but they pose ethical and practical issues. Not only difficult to find the good source of those cells but also they alway pose immunorejection problem since they may not be an autologous cells. Even if we overcome the immunorejection problem, it has also been reported that transplantation of ESCs develop teratoma...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29740283/transplantation-of-human-menstrual-blood-derived-mesenchymal-stem-cells-alleviates-alzheimer-s-disease-like-pathology-in-app-ps1-transgenic-mice
#4
Yongjia Zhao, Xin Chen, Yichen Wu, Yanling Wang, Yifei Li, Charlie Xiang
Extracellular β-amyloid (Aβ) plaques and neurofibrillary tangles (NFTs) are the pathological hallmarks of Alzheimer's disease (AD). Mesenchymal stem cells (MSCs) have shown therapeutic efficacy in many neurodegenerative diseases, including AD. Human menstrual blood-derived stem cells (MenSCs) are a novel source of MSCs advantageous for their higher proliferation rate and because they are easy to obtain without ethical concerns. Although MenSCs have exhibited therapeutic efficacy in some diseases, their effects on AD remain elusive...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29733569/directing-ipsc-derived-neural-stem-cell-fate-with-3d-biomimetic-hydrogel-for-spinal-cord-injury-repair
#5
Lei Fan, Can Liu, Xiuxing Chen, Yan Zou, Zhengnan Zhou, Chengkai Lin, Guoxin Tan, Lei Zhou, Chengyun Ning, Qiyou Wang
Current treatment approaches for spinal cord injuries (SCIs) are mainly based on cellular transplantation. Induced pluripotent stem cells (iPSCs) without supply constraints and ethical concerns have emerged as a viable treatment option for repairing neurological disorders. However, the primarily limitations in the neuroregeneration field are uncontrolled cell differentiation, and low cell viability caused by the ischemic environment. The mechanical property of three-dimensional (3D) hydrogel can be easily controlled and shared similar characteristics with nerve tissue, thus promoting cell survival and controlled cell differentiation...
May 7, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29724990/knowledge-and-ethical-issues-in-organ-transplantation-and-organ-donation-perspectives-from-iranian-health-personnel
#6
Mahmoud Abbasi, Mehrzad Kiani, Mehdi Ahmadi, Bahare Salehi
BACKGROUND Organ transplantation is one of the most critical topics in medical ethics that is commonplace in various countries. This study aimed to evaluate the knowledge and the ethical issues surrounding organ transplantation and organ donation among healthcare personnel in Tehran, Iran. MATERIAL AND METHODS In a cross-sectional study performed on 450 healthcare personnel, self-administered questionnaires were used to derive data from individuals. Among the 450 health personnel who received the questionnaires, 377 completed their questionnaires (83...
May 4, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29724118/perceptions-motivations-and-concerns-about-living-organ-donation-among-people-living-with-hiv
#7
Sarah E Van Pilsum Rasmussen, Macey L Henderson, Juli Bollinger, Shanti Seaman, Diane Brown, Christine M Durand, Dorry L Segev, Jeremy Sugarman
Recent changes to United States law now permit people living with HIV (PLWH) to donate organs to HIV-infected (HIV+) recipients under research protocols. PLWH may have unique motivations for and concerns about living donation and understanding them is critical to ensuring the integrity of this novel approach to organ transplantation. We conducted in-depth interviews with PLWH from an urban HIV clinic who had previously indicated their willingness to be a living donor. Interviews elicited information on their motivations, perceived benefits, and concerns regarding living donation...
May 3, 2018: AIDS Care
https://www.readbyqxmd.com/read/29719811/unusual-long-survival-despite-severe-lung-disease-of-a-child-with-biallelic-loss-of-function-mutations-in-abca-3
#8
P El Boustany, R Epaud, C Grosse, F Barriere, E Grimont-Rolland, A Carsin, J C Dubus
Homozygous or compound heterozygous for frameshift or nonsense mutations in the ATP-binding cassette transporter A3 (ABCA3) is associated with neonatal respiratory failure and death within the first year of life without lung transplantation. We report the case of a newborn baby girl who developed severe respiratory distress soon after birth. She was diagnosed with compound heterozygous frameshift mutation of the ABCA3 gene. Despite extensive treatment (intravenous corticosteroids pulse therapy, oral corticosteroids, azithromycin, and hydroxychloroquine), she developed chronic respiratory failure...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29708521/ethical-analysis-and-policy-recommendations-regarding-domino-liver-transplantation
#9
David Schenck, George V Mazariegos, J Richard Thistlethwaite, Lainie Friedman Ross
Due to the widening gap between supply and demand, patients who need a liver transplant due to metabolic disease may be asked to serve as domino liver donors-to have their native liver transplanted into another candidate. We here analyze the ethical problems surrounding informed consent for the implant and explant procedures in transplant candidates who will serve as domino donors, using the case of a child with maple syrup urine disease. We discuss the need for 2 distinct consent processes separated in time to ensure that potential domino donors (or their surrogates) give a truly voluntary consent...
May 2018: Transplantation
https://www.readbyqxmd.com/read/29703851/efficacy-and-safety-of-faecal-microbiota-transplantation-in-patients-with-psoriatic-arthritis-protocol-for-a-6-month-double-blind-randomised-placebo-controlled-trial
#10
Maja Skov Kragsnaes, Jens Kjeldsen, Hans Christian Horn, Heidi Lausten Munk, Finn Moeller Pedersen, Hanne Marie Holt, Jens Kristian Pedersen, Dorte Kinggaard Holm, Henning Glerup, Vibeke Andersen, Ulrich Fredberg, Karsten Kristiansen, Robin Christensen, Torkell Ellingsen
INTRODUCTION: An unbalanced intestinal microbiota may mediate activation of the inflammatory pathways seen in psoriatic arthritis (PsA). A randomised, placebo-controlled trial of faecal microbiota transplantation (FMT) infused into the small intestine of patients with PsA with active peripheral disease who are non-responsive to methotrexate (MTX) treatment will be conducted. The objective is to explore clinical aspects associated with FMT performed in patients with PsA. METHODS AND ANALYSIS: This trial is a randomised, two-centre stratified, double-blind (patient, care provider and outcome assessor), placebo-controlled, parallel-group study...
April 27, 2018: BMJ Open
https://www.readbyqxmd.com/read/29697399/-legal-regulation-of-transplantology-at-the-present-stage-ukrainian-issue-and-experience-of-foreign-states
#11
O Sovgyria
The objective of the research is to analyze the legal regulation in the transplantology field at the present stage in Ukraine. To address identified challenges, the author investigates the foreign countries experience and suggests ways of improving certain mechanism for legal regulation in the field of organ transplantation and anatomical materials. The empiric material of the study included a wide range of legal instruments regulating this sphere of legal relationships, information regarding the problems of their application, statistics, expert analysis of Ukrainian and foreign researchers...
March 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29687570/should-we-formulate-an-incentivized-model-facilitating-kidney-donation-from-living-donors-a-focus-on-turkey-s-current-system
#12
Ercan Avci
Kidney transplantation is a lifesaving medical treatment. However, very high demand for kidneys with low kidney donation causes a black market that exploits patients' desperation and donors' vulnerability. The current kidney donation programs fail to produce promising results to avoid illegal and unethical kidney trafficking and commercialism. Even though the primary goal of kidney donation is to increase the number of deceased organ donations, in some countries, like Turkey, due to religious or cultural concerns, it is impossible to supply adequate deceased kidney donations...
April 23, 2018: Developing World Bioethics
https://www.readbyqxmd.com/read/29687472/conscience-claims-metaphysics-and-avoiding-an-lgbt-eugenic
#13
Abram Brummett
Novel assisted reproductive technologies (ART) are poised to present our society with strange new ethical questions, such as whether lesbian, gay, bisexual, and transgender (LGBT) couples should be allowed to produce children biologically related to both parents, or whether trans-women who want to experience childbirth should be allowed to receive uterine transplants. Clinicians opposed to offering such technologies to LGBT couples on moral grounds are likely to seek legal shelter through the conscience clauses enshrined in U...
April 23, 2018: Bioethics
https://www.readbyqxmd.com/read/29676031/treatment-of-recurrent-focal-segmental-glomerulosclerosis-post-kidney-transplantation-in-australian-and-new-zealand-children-a-retrospective-cohort-study
#14
Anna Francis, Madeleine Didsbury, Hugh McCarthy, Tonya Kara
Disease recurrence affects around a third of renal transplants for children with FSGS and is associated with poor graft outcomes. Unfortunately, there are no large trials guiding treatment for recurrent FSGS. We aimed to describe current therapies and treatment response for recurrent FSGS in 4 centres in Australia and New Zealand. Data were collected on children (age <18 years) with recurrent FSGS (1990-2015). We reviewed patient charts to obtain clinical information. Ethics approval was obtained from the relevant boards...
April 19, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29671724/facial-disfigurement-and-identity-a-review-of-the-literature-and-implications-for-facial-transplantation
#15
William J Rifkin, Rami S Kantar, Safi Ali-Khan, Natalie M Plana, J Rodrigo Diaz-Siso, Manos Tsakiris, Eduardo D Rodriguez
Facial disfigurement can significantly affect personal identity and access to social roles. Although conventional reconstruction can have positive effects with respect to identity, these procedures are often inadequate for more severe facial defects. In these cases, facial transplantation (FT) offers patients a viable reconstructive option. However, FT's effect on personal identity has been less well examined, and ethical questions remain regarding the psychosocial ramifications of the procedure. This article reviews the literature on the different roles of the face as well as psychological and social effects of facial disfigurement...
April 1, 2018: AMA Journal of Ethics
https://www.readbyqxmd.com/read/29664408/donation-after-cardiac-death-heart-transplantation-in-america-is-clinically-necessary-and-ethically-justified
#16
Taufiek Konrad Rajab, Steve K Singh
No abstract text is available yet for this article.
March 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29662050/does-vitamin-d-affect-chronic-renal-allograft-function-in-pediatric-transplant-patients
#17
Brooke Wile, Elisa Yoo, Ana Catalina Alvarez Elias, Lakshmimathy Subramanian, Kathryn Eager, Ajay Parkesh Sharma, Guido Filler
BACKGROUND Correction of hypovitaminosis D is simple, but it is unclear whether it is associated with an accelerated decline of renal allograft function in pediatric renal transplantation patients. This retrospective single center cohort study aimed at analyzing the effect of vitamin D and covariates on the slope of 1/creatinine after the first year. MATERIAL AND METHODS After ethics committee approval, 37 (14 male) pediatric renal transplant recipients on mycophenolate mofetil, who were followed between 2006 and 2014, were included in this study...
April 17, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29661451/ischemia-with-preconditioning-in-wistar-rats-maintains-mitochondrial-respiration-even-with-mild-hepatocellular-disturbance
#18
R R Tártaro, G L Jorge, A H Dianin, C A F Escanhoela, I F S F Boin
INTRODUCTION: In hepatectomy or liver transplantation, preconditioning is a procedure indicated to protect the organ from ischemia-reperfusion injury (I-R). OBJECTIVE: Evaluate the effect of preconditioning after hepatic I-R in Wistar rats, through mitochondrial respiration, liver histology, and profile. METHOD: Twenty male Wistar rats, weighing on average 307.1 g, were anesthetized with sodium thiopental (25 mg/kg) intravenously and xylazine hydrochloride (30 mg/kg) intramuscularly...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29653250/pluripotent-stem-cell-based-therapy-for-parkinson-s-disease-current-status-and-future-prospects
#19
REVIEW
Kai-C Sonntag, Bin Song, Nayeon Lee, Jin Hyuk Jung, Young Cha, Pierre Leblanc, Carolyn Neff, Sek Won Kong, Bob S Carter, Jeffrey Schweitzer, Kwang-Soo Kim
Parkinson's disease (PD) is one of the most common neurodegenerative disorders, which affects about 0.3% of the general population. As the population in the developed world ages, this creates an escalating burden on society both in economic terms and in quality of life for these patients and for the families that support them. Although currently available pharmacological or surgical treatments may significantly improve the quality of life of many patients with PD, these are symptomatic treatments that do not slow or stop the progressive course of the disease...
April 11, 2018: Progress in Neurobiology
https://www.readbyqxmd.com/read/29649836/-flight-routes-to-germany-of-seriously-ill-children-and-adolescents-from-former-eastern-bloc-countries-for-treatment-of-renal-failure
#20
Dilbar Mammadova, Ines Marek, Matthias Galiano, Wolfgang Rascher
BACKGROUND: Increased patient mobility and restricted treatment of children with end-stage renal disease forced families from the former Eastern Bloc countries to flee with their children to Germany for adequate medical treatment. METHODS: In a case study, the patients' charts were analysed retrospectively. In structured interviews, parents and patients were asked about their flight routes to Germany, their medical treatment and their integration. RESULTS: From 2003 to 2013, eight children and adolescents with renal failure were treated with dialysis or renal transplantation in Erlangen...
April 12, 2018: Klinische Pädiatrie
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