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https://www.readbyqxmd.com/read/29601863/culturing-functional-pancreatic-islets-on-%C3%AE-5-laminins-and-curative-transplantation-to-diabetic-mice
#1
Kristmundur Sigmundsson, Juha R M Ojala, Miina K Öhman, Anne-May Österholm, Aida Moreno-Moral, Anna Domogatskaya, Li Yen Chong, Yang Sun, Xiaoran Chai, Joseph A M Steele, Benjamin George, Manuel Patarroyo, Ann-Sofie Nilsson, Sergey Rodin, Sujoy Ghosh, Molly M Stevens, Enrico Petretto, Karl Tryggvason
The efficacy of islet transplantation for diabetes treatment suffers from lack of cadaver-derived islets, islet necrosis and long transfer times prior to transplantation. Here, we developed a method for culturing mouse and human islets in vitro on α5-laminins, which are natural components of islet basement membranes. Adhering islets spread to form layers of 1-3 cells in thickness and remained normoxic and functional for at least 7 days in culture. In contrast, spherical islets kept in suspension developed hypoxia and central necrosis within 16 h...
March 27, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29595735/a-new-composite-eyeball-periorbital-transplantation-model-in-humans-an-anatomical-study-in-preparation-for-eyeball-transplantation
#2
Maria Siemionow, Mehmet Bozkurt, Fatih Zor, Yalcin Kulahci, Safak Uygur, Can Ozturk, Risal Djohan, Frank Papay
BACKGROUND: Vascularized composite allotransplantation offers a new hope for restoration of orbital content and perhaps vision. The aim of this study was to introduce a new composite eyeball-periorbital transplantation model in fresh cadavers in preparation for composite eyeball allotransplantation in humans. METHODS: The composite eyeball-periorbital transplantation flap borders included the inferior border, outlined by the infraorbital rim; the medial border, created by the nasal dorsum; the lateral border, created by the lateral orbital rim; and the superior border, created by the superior part of the eyebrow...
April 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29579866/how-thinking-about-the-donor-influences-post-traumatic-growth-in-liver-transplant-recipients
#3
A Martín-Rodríguez, M Á Pérez-San-Gregorio, M L Avargues-Navarro, M Borda-Mas, J Pérez-Bernal, M Á Gómez-Bravo
OBJECTIVE: The aim of this work was to find out whether thinking frequently about the donor influences post-traumatic growth of liver transplant recipients. METHODS: The sample of 240 patients selected was made up of 185 men and 55 women with an overall mean age of 60.21 (SD 9.3) years. All of them had received liver transplants from cadaver donors. Transplant recipients were asked whether they thought frequently about the donor (yes or no) and filled out the Post-traumatic Growth Inventory...
March 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29573222/concise-review-altered-versus-unaltered-amniotic-membrane-as-a-substrate-for-limbal-epithelial-cells
#4
REVIEW
Tor Paaske Utheim, Øygunn Aass Utheim, Panagiotis Salvanos, Catherine J Jackson, Stefan Schrader, Gerd Geerling, Amer Sehic
Limbal stem cell deficiency (LSCD) can result from a variety of corneal disorders, including chemical and thermal burns, infections, and autoimmune diseases. The symptoms of LSCD may include irritation, epiphora, blepharospasms, photophobia, pain, and decreased vision. There are a number of treatment options, ranging from nonsurgical treatments for mild LSCD to various forms of surgery that involve different cell types cultured on various substrates. Ex vivo expansion of limbal epithelial cells (LEC) involves the culture of LEC harvested either from the patient, a living relative, or a cadaver on a substrate in the laboratory...
March 23, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29561493/lacrimal-apparatus-procurement-in-face-transplantation
#5
Asif Hasan, Colin Maciver, Gaoussou Toure, Jean-Paul Meningaud
The aesthetic outcome of a well-planned and executed vascularized composite tissue face allotransplant is unquestionable; however, complete functional restoration is necessary. The authors studied the possibility of restoring tear duct function in face transplant recipients. They also examined the technical specifics and feasibility of incorporating a lacrimal drainage apparatus into facial allografting. The authors performed a standardized face vascularized composite allograft on 4 hemi-faces (2 fresh cadavers)...
March 20, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29531856/human-corneal-endothelial-cell-transplantation-using-nanocomposite-gel-sheet-in-bullous-keratopathy
#6
Periasamy Parikumar, Kazutoshi Haraguchi, Rajappa Senthilkumar, Samuel Jk Abraham
Transplantation of in vitro expanded human corneal endothelial precursors (HCEP) cells using a nanocomposite (D25-NC) gel sheet as supporting material in bovine's cornea has been earlier reported. Herein we report the transplantation of HCEP cells derived from a cadaver donor cornea to three patients using the NC gel sheet. In three patients with bullous keratopathy, one after cataract surgery, one after trauma and another in the corneal graft, earlier performed for congenital corneal dystrophy, not amenable to medical management HCEP cells isolated from a human cadaver donor cornea in vitro expanded using a thermoreversible gelation polymer (TGP) for 26 days were divided into three equal portions and 1...
2018: American Journal of Stem Cells
https://www.readbyqxmd.com/read/29459773/erythrocyte-glutathione-transferase-in-kidney-transplantation-a-probe-for-kidney-detoxification-efficiency
#7
Alessio Bocedi, Annalisa Noce, Valentina Rovella, Giulia Marrone, Giada Cattani, Massimo Iappelli, Paolo De Paolis, Giuseppe Iaria, Daniele Sforza, Mariacarla Gallù, Giuseppe Tisone, Nicola Di Daniele, Giorgio Ricci
Erythrocyte glutathione transferase (e-GST) is overexpressed in case of increased blood toxicity and its level correlates with the kidney disease progression. Thus, it represents a probe of kidney efficiency against circulating toxins. We measured the activity of e-GST in patients with transplant kidney from living and cadaver donors, correlated its level to biochemical parameters of kidney function, and measured the level of oxidized albumin as a probe of oxidative stress using a new simple procedure. Interestingly, the activity of e-GST in transplant patients from cadaver donors (N = 153) is very high (11...
February 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29428180/international-collaborative-donor-project
#8
Antonio Ríos Zambudio
The International Donor Collaborative Project (PCID) research group was created in 1996 in Spain with the aim of promoting research in the field of organ donation and transplantation, led by Spanish surgeons. During this period they have developed the questionnaires of the PCID, both the attitude towards cadaver and live donation, which are the most used questionnaires in publications in indexed journals. They have been the driving group of stratified studies representative of the populations under study, and of the performance of multivariate statistical analyzes in the field of psycho-social research in organ donation and transplantation...
February 7, 2018: Cirugía Española
https://www.readbyqxmd.com/read/29407316/functional-results-of-renal-preservation-in-hypothermic-pulsatile-machine-perfusion-versus-cold-preservation-systematic-review-and-meta-analysis-of-clinical-trials
#9
L Martínez Arcos, J J Fabuel Alcañiz, V Gómez Dos Santos, F J Burgos Revilla
BACKGROUND: Hypothermic pulsatile machine perfusion (HPMP) decreases the rate of delayed graft function (DGF) in kidney grafts, compared with cold storage. However, it is not clear its use in the different subgroups of grafts. The objective was to review systematically all studies with better methodologic quality that compare HPMP versus cold storage. METHODS: A systematic review was performed. The sources were Pubmed, Pubmed Central, Cochrane Library, Clinical Key, and Ovid...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29392618/rapid-recovery-of-hypogonadism-in-male-patients-with-end-stage-renal-disease-after-renal-transplantation
#10
W Reinhardt, H Kübber, S Dolff, S Benson, D Führer, S Tan
PURPOSE: End stage renal disease (ESRD) in male patients is associated with a high prevalence of hypogonadism. After renal transplantation (RTx) an improvement in gonadal function is often observed. However, the time course of changes in pituitary-gonadal axis after RTx and the influence of renal function, age and anthropometric parameters are not well characterized. We prospectively evaluated pituitary-gonadal axis in male patients with ESRD before and after RTx for up to 1 year. METHODS: Ninety-seven male patients with ESRD were consecutively investigated on day of surgery and 1, 3, 6, and 12 months after RTx...
February 1, 2018: Endocrine
https://www.readbyqxmd.com/read/29363357/clinical-application-of-mathematical-long-bone-ratios-to-calculate-appropriate-donor-limb-lengths-in-bilateral-upper-limb-transplantation
#11
Justyn Lutfy, Alexis Pietak, Shaun D Mendenhall, Michael W Neumeister
BACKGROUND: Limited methods exist to aid in deciding the appropriate donor limb lengths in bilateral upper limb amputees qualifying for vascularized composite allotransplantation. We hypothesized mathematical equations could be created using long bone length ratios, and applied to radiographs, to approximate the patient's limb length prior to amputation. METHODS: A data set of 30 skeletons' unilateral upper limb long bones measured using osteometric board and calipers was used...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29352347/autologous-cell-based-therapy-for-treatment-of-large-bone-defects-from-bench-to-bedside
#12
REVIEW
R Verboket, M Leiblein, C Seebach, C Nau, M Janko, M Bellen, H Bönig, D Henrich, I Marzi
OBJECTIVES: Reconstruction of long segmental bone defects is demanding for patients and surgeons, and associated with long-term treatment periods and substantial complication rates in addition to high costs. While defects up to 4-5 cm length might be filled up with autologous bone graft, heterologous bone from cadavers, or artificial bone graft substitutes, current options to reconstruct bone defects greater than 5 cm consist of either vascularized free bone transfers, the Masquelet technique or the Ilizarov distraction osteogenesis...
January 19, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29317046/retro-peritoneal-cooling-for-kidney-preservation-from-multi-organ-cadaver-donors
#13
Anastasio Salazar-Bañuelos, Mauricio Monroy-Cuadros, Hoover Henriquez-Cooper
BACKGROUND: Minimizing ischemia is paramount in the procurement of kidneys for transplantation. A fast cooling and expeditious removal is ideal to minimize damage from warm ischemia, however, since the removal of kidneys is delayed in cadaver donation until all other organs are harvested, the risk of kidney damage increases due to contact with the warmer soft body tissues. Surgical techniques that expedite organ retrieval were developed to avoid organ damage. METHODS: We test a modification of Thomas Starzl's improved technique for multi-organ harvesting by interposing an ice bag between the posterior aspect of the kidney and the psoas muscle in a randomized trial with 21 multi-organ cadaver donors...
January 4, 2018: American Journal of Surgery
https://www.readbyqxmd.com/read/29302735/a-new-human-derived-acellular-dermal-matrix-for-breast-reconstruction-available-for-the-european-market-preliminary-results
#14
Secondo Folli, Annalisa Curcio, Davide Melandri, Elena Bondioli, Nicola Rocco, Giuseppe Catanuto, Fabio Falcini, Valeria Purpura, Matteo Mingozzi, Federico Buggi, Francesco Marongiu
INTRODUCTION: The introduction of acellular dermal matrices (ADMs) contributed to the growing diffusion of direct-to-implant breast reconstruction (DTI-BR) following mastectomy for breast cancer. According to specific legislations, European specialists could not benefit from the use of human-derived ADMs, even though most evidence in the literature are available for this kind of device, showed optimal outcomes in breast reconstruction. The Skin Bank of the Bufalini Hospital (Cesena, Italy) obtained in 2009 the approval for the production and distribution of a new human cadaver-donor-derived ADM (named with the Italian acronym, MODA, for matrice omologa dermica acellulata) from the Italian National Transplant Center and National Health Institute...
April 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29278028/post-transplantation-morphological-and-functional-changes-in-kidneys-from-expanded-criteria-donors
#15
B Borda, T Németh, A Ottlakan, C Keresztes, É Kemény, G Lázár
Introduction Despite an increase in the number of cadaver donors and overall organ transplantations, the dramatic increase in the waiting list makes it necessary to reconsider donor criteria. The authors wanted to examine whether differences could exist in the function and/or morphology of transplanted kidneys originated from expanded criteria donors (ECDs) and ideal donors 1 and 5 years after transplantation. Methods Kidney function and histopathologic findings were analyzed and compared 1 and 5 years after transplantation in 97 patients having ECD kidneys and in 178 patients who received ideal donor kidneys (IDK)...
December 1, 2017: Physiology International
https://www.readbyqxmd.com/read/29185126/long-term-outcome-of-congenital-nephrotic-syndrome-after-kidney-transplantation-in-japan
#16
Yuko Hamasaki, Masaki Muramatsu, Riku Hamada, Kenji Ishikura, Hiroshi Hataya, Hiroyuki Satou, Masataka Honda, Koichi Nakanishi, Seiichiro Shishido
BACKGROUND: Congenital nephrotic syndrome is difficult to manage, particularly the Finnish type (CNF), with patients experiencing severe edema, sepsis and thrombosis before kidney transplantation. Further, nephrosis and thrombosis remain problematic after transplantation. METHODS: Of 22 CNF patients managed at our hospital, 14 who underwent kidney transplantation were retrospectively studied. CNF was diagnosed according to standard criteria. RESULTS: The study population consisted of 3 males and 11 females...
November 28, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29158031/robot-assisted-renal-transplantation-using-the-retroperitoneal-approach-rart-with-more-than-one-year-follow-up-description-of-the-technique-and-results
#17
F Bruyère, B Pradère, B Faivre d'Arcier, J-M Boutin, M Buchler, N Brichart
OBJECTIVES: To describe the technique and report our first experience of robotic-assisted renal transplantation (RART) with more than one year follow up. PATIENTS AND METHODS: In our center the first case of RART was realized in October 2013 with a cadaveric graft. We used the combined extra- and intraperitoneal robot assisted laparoscopic route with extraperitoneal positioning of the graft and intraperitoneal transplantation. The patient was placed in the supine position with arms along the body; the robot came from the right inferior part of the patient...
January 2018: Progrès en Urologie
https://www.readbyqxmd.com/read/29149965/comparision-of-ureteral-stent-colonization-between-deceased-and-live-donor-renal-transplant-recipients
#18
M Sarier, D Seyman, S Tekin, I Duman, B Uygun, M Demir, E Kukul, A H Yavuz
BACKGROUND: The use of a ureteral stent can cause a urinary tract infection (UTI), although it reduces urologic complications. UTIs are associated with a higher rate of ureteral stent colonization (USC). The aim of this study was to compare USC in living and deceased donor renal transplant recipients. MATERIAL AND METHODS: We conducted a prospective study of 48 patients who underwent renal transplantation between January and December 2016. The stents were removed aseptically, the inner surface of proximal and distal ends of stents were irrigated with liquid culture medium, and then they were vortexed for bacteriological investigation...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149949/attitudes-toward-organ-donation-among-relatives-of-the-patients-who-are-being-followed-up-in-intensive-care-and-dialysis-units
#19
B Kahveci, K Topal, Ç Gereklioglu, H Aksoy
INTRODUCTION: This study sought to investigate attitudes toward organ donation (OD) among the relatives of patients who are being followed up in intensive care units (ICU) and dialysis units. MATERIALS AND METHODS: This cross-sectional study was conducted with relatives of the patients who were being followed up in hemodialysis (HD) and peritoneal dialysis (PD) units and Neurosurgery, Neurology, Anesthesia, and Reanimation ICUs of Adana Numune Research and Training Hospital...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29140906/nose-and-lip-graft-variants-a-subunit-anatomical-study
#20
Jérôme Duisit, Louis Maistriaux, Alexander Gerdom, Martial Vergauwen, Pierre Gianello, Catherine Behets, Benoît Lengelé
BACKGROUND: In the field of vascularized composite tissue allotransplantation, the surgical design of facial subunit grafts is an evolving concept. The purpose of the present article is to study the possibility of dividing the historical nose and lip face transplant into several morphologic and functional subunit grafts, depending on their respective supply. METHODS: This study was conducted in 20 adult cadavers. The facial artery and its branches were dissected bilaterally in 16 fresh and four embalmed heads...
March 2018: Plastic and Reconstructive Surgery
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