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Pancreas transplantation

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https://www.readbyqxmd.com/read/28445487/bmt-decreases-hfd-induced-weight-gain-associated-with-decreased-preadipocyte-number-and-insulin-secretion
#1
Saeed Katiraei, Lisa R Hoving, Lianne van Beek, Sharida Mohamedhoesein, Françoise Carlotti, Janna A van Diepen, Patrick C N Rensen, Mihai G Netea, Ko Willems van Dijk, Jimmy F P Berbée, Vanessa van Harmelen
Experimental bone marrow transplantation (BMT) in mice is commonly used to assess the role of immune cell-specific genes in various pathophysiological settings. The application of BMT in obesity research is hampered by the significant reduction in high-fat diet (HFD)-induced obesity. We set out to characterize metabolic tissues that may be affected by the BMT procedure and impair the HFD-induced response. Male C57BL/6 mice underwent syngeneic BMT using lethal irradiation. After a recovery period of 8 weeks they were fed a low-fat diet (LFD) or HFD for 16 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28444910/characterization-of-porcine-endogenous-retrovirus-expression-in-neonatal-and-adult-pig-pancreatic-islets
#2
Nizar I Mourad, Claire Crossan, Victoria Cruikshank, Linda Scobie, Pierre Gianello
BACKGROUND: Pig islets represent an alternative to the current modes of treatment for patients with diabetes. However, the concerns over pathogen transmission including that of PERV limit their immediate, widespread usage in humans. It has been previously demonstrated that PERV copy number and particularly expression levels can vary considerably between individuals and within different tissues of a single animal. In general, expression levels have been found to be particularly low in the pancreas compared to other porcine tissues suggesting a reduced risk associated with the use of this tissue...
April 26, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28444815/endoscopic-findings-following-retroperitoneal-pancreas-transplantation
#3
Alexey Valer'evich Pinchuk, Ilya Victorovich Dmitriev, Nonna Valer'evna Shmarina, Yury Sergeevich Teterin, Aslan Galievich Balkarov, Roman Vasil'evich Storozhev, Yuri Andreevich Anisimov, Ali Magomedovich Gasanov
AIM: An evaluation of the efficacy of endoscopic methods for the diagnosis and correction of surgical and immunological complications after retroperitoneal pancreas transplantation. MATERIALS AND METHODS: From October 2011 to March 2015, 27 patients underwent simultaneous retroperitoneal pancreas-kidney transplantation (SPKT). Diagnostic oesophagogastroduodenoscopy (EGD) with protocol biopsy of the donor and recipient duodenal mucosa and endoscopic retrograde pancreatography (ERP) were performed to detect possible complications...
April 26, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28437790/utility-in-treating-kidney-failure-in-end-stage-liver-disease-with-simultaneous-liver-kidney-transplantation
#4
Xingxing S Cheng, Margaret R Stedman, Glenn M Chertow, W Ray Kim, Jane C Tan
BACKGROUND: Simultaneous liver-kidney (SLK) transplantation plays an important role in treating kidney failure in patients with end-stage liver disease. It used 5% of deceased donor kidney transplanted in 2015. We evaluated the utility, defined as posttransplant kidney allograft lifespan, of this practice. METHODS: Using data from the Scientific Registry of Transplant Recipients, we compared outcomes for all SLK transplants between January 1, 1995, and December 3, 2014, to their donor-matched kidney used in kidney-alone (Ki) or simultaneous pancreas kidney (SPK) transplants...
May 2017: Transplantation
https://www.readbyqxmd.com/read/28433740/xenotransplantation-of-layer-by-layer-encapsulated-non-human-primate-islets-with-a-specified-immunosuppressive-drug-protocol
#5
Muhammad R Haque, Jiwoong Kim, Hyojun Park, Han Sin Lee, Kyo Won Lee, Taslim A Al-Hilal, Jee-Heon Jeong, Cheol-Hee Ahn, Doo Sung Lee, Sung Joo Kim, Youngro Byun
Islet transplantation is as effective as but also less immunogenic than pancreas transplantation for the treatment of type 1 diabetes mellitus. However, as the complete elimination of immunogenicity still remains a major obstacle in islet transplantation, layer-by-layer encapsulation (LbL) of pancreatic islets using biocompatible polymers offers a rational approach to reducing host immune response towards transplanted islets. We investigated the effect of LbL of non-human primate (NHP) islets on reducing immunogenicity as a preclinical model since NHPs have close phylogenetic and immunological relationship with human...
April 19, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28432571/cell-therapy-for-type-1-diabetes-current-and-future-strategies
#6
REVIEW
Yasaman Aghazadeh, Maria Cristina Nostro
PURPOSE OF THE REVIEW: Type 1 diabetes (T1D) is defined by an autoimmune destruction of insulin producing β-cells located in the endocrine part of the pancreas, the islets of Langerhans. As exogenous insulin administration fails at preventing severe complications associated with this disease, cell replacement therapies are being considered as a means to treat T1D. The purpose of this manuscript is to review the challenges associated with current strategies and discuss the potential of stem cell therapy for the treatment of T1D...
June 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28397982/generation-of-chimeric-minipigs-by-aggregating-4-to-8-cell-stage-blastomeres-from-somatic-cell-nuclear-transfer-with-the-tracing-of-enhanced-green-fluorescent-protein
#7
Huili Ji, Chuan Long, Chong Feng, Ningning Shi, Yingdi Jiang, Guomin Zeng, Xirui Li, Jingjing Wu, Lin Lu, Shengsheng Lu, Dengke Pan
BACKGROUND: Blastocyst complementation is an important technique for generating chimeric organs in organ-deficient pigs, which holds great promise for solving the problem of a shortage of organs for human transplantation procedures. Porcine chimeras have been generated using embryonic germ cells, embryonic stem cells, and induced pluripotent stem cells; however, there are no authentic pluripotent stem cells for pigs. In previous studies, blastomeres from 4- to 8-cell-stage parthenogenetic embryos were able to generate chimeric fetuses efficiently, but the resulting fetuses did not produce live-born young...
April 11, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28397308/improvement-of-isolated-caprine-islet-survival-and-functionality-in-vitro-by-enhancing-of-pdx1-gene-expression
#8
Homayoun Hani, Zeenathul Nazariah Allaudin, Mohd-Azmi Mohd-Lila, Kazhal Sarsaifi, Mina Rasouli, Yew Joon Tam, Tengku-Azmi Tengku-Ibrahim, Abas Mazni Othman
BACKGROUND: Dead islets replaced with viable islets are a promising offer to restore normal insulin production to a person with diabetes. The main reason for establishing a new islet source for transplantation is the insufficiency of human donor pancreas while using xenogeneic islets perhaps assists this problem. The expression of PDX1 is essential for the pancreas expansion. In mature β-cells, PDX1 has several critical roles such as glucose sensing, insulin synthesis, and insulin secretion...
April 11, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28393434/multivisceral-transplantation-for-abdominal-tumors-in-children-a-single-center-experience-and-review-of-the-literature
#9
Eliza Lee, Nicole Hodgkinson, Rima Fawaz, Khashayar Vakili, Heung Bae Kim
Standard management of intra-abdominal pediatric solid tumors requires complete resection. However, tumors with multiple organ and vascular involvement present a unique surgical challenge. We conducted a retrospective chart review of four patients, aged 2-14 years, undergoing MVT for intra-abdominal tumors with significant involvement of the visceral arteries and/or portomesenteric venous system at our institution. Indications for MVT included hepatocellular carcinoma, inflammatory myofibroblastic tumor, and two cases of hepatoblastoma...
April 9, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28385600/mesenchymal-stem-cells-and-differentiated-insulin-producing-cells-are-new-horizons-for-pancreatic-regeneration-in-type-i-diabetes-mellitus
#10
Ayat M Domouky, Ashraf S Hegab, Amal Al-Shahat, Nermin Raafat
BACKGROUND: Diabetes mellitus has become the third human killer following cancer and cardiovascular disease. Millions of patients, often children, suffer from type 1 diabetes (T1D). Stem cells created hopes to regenerate damaged body tissues and restore their function. AIM: This work aimed at clarifying and comparing the therapeutic potential of differentiated and non-differentiated mesenchymal stem cells (MSCs) as a new line of therapy for T1D. METHODS: 40 Female albino rats divided into group I (control): 10 rats and group II (diabetic), III and IV, 10 rats in each, were injected with streptozotocin (50mg/kg body weight)...
April 3, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28385584/a-study-of-the-clinical-utility-of-a-20-minute-secretin-stimulated-endoscopic-pancreas-function-test-and-performance-according-to-clinical-variables
#11
Luis F Lara, Morihito Takita, James S Burdick, Daniel C DeMarco, Ronnie R Pimentel, Tolga Erim, Marlon F Levy
BACKGROUND & AIMS: Direct pancreas juice testing of bicarbonate, lipase, or trypsin after stimulation by secretin or cholecystokinin (CCK) is used to determine exocrine function, a surrogate for diagnosing chronic pancreatitis (CP). Endoscopic pancreas function tests (ePFT) where a peak bicarbonate concentration (PBC) ≥80 mEq/L in pancreas juice is considered normal are now used more frequently. In this ePFT aspirates start 35 minutes after secretin administration because pancreas output peaks 30 minutes after secretagogue administration...
April 3, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28373161/pancreas-transplantation
#12
REVIEW
Patrick G Dean, Aleksandra Kukla, Mark D Stegall, Yogish C Kudva
The treatment of patients with diabetes mellitus (DM) presents many challenges to care providers and represents a major proportion of healthcare expenditure worldwide. Successful pancreas transplantation provides durable glycemic control and improves survival for patients with diabetes. Progress in the field has mainly been based on large single center studies and the cumulative analyses of registry data from the United Network for Organ Sharing (UNOS) and the International Pancreas Transplant Registry. This review focuses on the outcomes of pancreas transplantation for patients with and without end stage renal disease...
April 3, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28362046/co-microencapsulation-of-bmscs-and-mouse-pancreatic-%C3%AE-cells-for-improving-the-efficacy-of-type-i-diabetes-therapy
#13
Ruimin Long, Yuangang Liu, Shibin Wang, Li Ye, Peng He
INTRODUCTION: To overcome the shortcomings of pancreas transplantation and insulin injection treatment for type I diabetes, biocompatible materials were used to prepare alginate-chitosan-alginate microcapsules that co-encapsulated bone marrow mesenchymal stem cells and mouse pancreatic β cells to treat diabetic mice. METHODS: Blank alginate-chitosan-alginate (ACA) microcapsules and co-microencapsulated cells were prepared using a high-voltage electrostatic method and then characterized using an inverted microscope...
March 21, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28361743/the-role-of-nutritional-assessment-and-early-enteral-nutrition-for-combined-pancreas-and-kidney-transplant-candidates
#14
Sally Finlay, Argiris Asderakis, Adel Ilham, Doruk Elker, Dawn Chapman, Elijah Ablorsu
BACKGROUND: Early post-operative enteral nutrition is an important part of perioperative management and is strongly supported by ESPEN Guidelines. However, there is limited evidence into the use of Early Enteral Nutrition (EEN) after combined Pancreas and Kidney Transplantation (PKT). We know malnutrition in type-1 diabetics with end stage renal failure (ESRF) is a common problem and a significant risk factor. Therefore, we introduced EEN in our patients. METHOD: We monitored and recorded nutritional data on 29 PKT recipients who underwent transplantation between Oct 2007 and Jan 2010 without a nutritional assessment or EEN [Monitored Group (MG)] and on 30 PKT recipients between Feb 2010 and Dec 2013 who received a nutritional assessment and EEN (Naso-jejunal feed or oral intake with supplementation, according to their nutritional status) [Fed Group (FG)]...
February 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28360408/senescence-of-pancreas-in-middle-aged-rats-with-normal-vascular-function
#15
Mohamad Kassem, Zahid Rasul Niazi, Malak Abbas, Ali El Habhab, Guillaume Kreutter, Sonia Khemais-Benkhiat, Cyril Auger, Maria-Cristina Antal, Valérie B Schini-Kerth, Florence Toti, Laurence Kessler
BACKGROUND In organ transplantation, particularly pancreas transplantation, donor age is a determinant factor for graft survival. Physiological aging is crucial in the progressive deterioration of organs in adulthood. We compared the senescence and function features of pancreas and vascular tissues in young rats and middle-aged rats. MATERIAL AND METHODS Islet morphology and the area of cells secreting insulin or glucagon was investigated using immunohistology in young rats (12 weeks) and middle-aged rats (52 weeks) (n=8)...
March 31, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28360105/demethylation-of-induced-pluripotent-stem-cells-from-type-1-diabetic-patients-enhances-differentiation-into-functional-pancreatic-%C3%AE-cells
#16
Gohar S Manzar, Eun-Mi Kim, Nicholas Zavazava
Type 1 diabetes (T1D) can be managed by transplanting either the whole pancreas or isolated pancreatic islets. However, cadaveric pancreas is scarcely available for clinical use, limiting this approach. As such, there is a great need to identify alternative sources of clinically usable pancreatic tissues. Here, we used induced pluripotent stem (iPS) cells derived from patients with T1D to generate glucose-responsive, insulin-producing cells (IPCs) via 3D culture. Initially, T1D iPS cells were resistant to differentiation, but transient demethylation treatment significantly enhanced IPC yield...
March 30, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28349124/alemtuzumab-induction-and-delayed-acute-rejection-in-steroid-free-simultaneous-pancreas-kidney-transplant-recipients
#17
Jonna R Bank, Sebastiaan Heidt, Dirk Jan A R Moes, Dave L Roelen, Marko J K Mallat, Paul J M van der Boog, Manon Vergunst, Cornelia M Jol-van der Zijde, Robbert G M Bredius, Andries E Braat, Jan Ringers, Maarten J D van Tol, Frans H J Claas, Marlies E J Reinders, Johannes W de Fijter
BACKGROUND: The optimal immunosuppressive regimen in simultaneous pancreas-kidney transplant (SPKT) recipients that prevents acute rejection episodes (AREs) and allows optimal outcome remains elusive. METHODS: This cohort study assessed incidence and time to AREs in 73 consecutive SPKT recipients receiving alemtuzumab induction and steroid-free maintenance with tacrolimus and mycophenolate mofetil. A cohort with single high-dose antithymocyte globulin (ATG; n = 85) and triple therapy served as controls...
January 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28342278/simultaneous-pancreas-and-kidney-transplantation-incidence-and-risk-factors-for-amputation-after-10-years-follow-up
#18
E MacCraith, N F Davis, C Browne, P Mohan, D Hickey
INTRODUCTION: The incidence of amputation after simultaneous pancreas and kidney (SPK) transplantation ranges from 9.5-23% after 5 years of follow-up. The objective of this study was to investigate the incidence and risk factors for amputation in SPK transplant patients after a minimum follow-up of 10 years. METHODS: An analysis was performed on a prospectively maintained database of 81 SPK transplants and 43 kidney transplantation alone (KTA) consecutively performed in one centre for insulin dependent diabetes mellitus between December 1992 and January 2006...
March 25, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28341510/endovascular-stenting-of-portal-vein-for-graft-rescue-after-a-pancreas-transplant-venous-graft-thrombosis-a-case-report
#19
Ossama M Reslan, Jordan M Kirsch, Hitesh Kaul, Stalin Campos, Radi Zaki, Paul S Brady, Kamran Khanmoradi
Venous thrombosis of pancreas transplant allografts often leads to graft loss. Its worrisome complication and difficult to treat, forming the most common nonimmunological cause of graft loss. Multiple risk factors have been implicated in the development of venous thrombosis of pancreas transplant. Color Doppler ultrasonography (CDUS) enables early diagnosis of venous thrombosis, thus increasing the possibility of graft-rescue treatments. Endovascular management of pancreatic transplant vascular complications are scant and in the form of case reports...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28340694/composition-and-organization-of-the-pancreatic-extracellular-matrix-by-combined-methods-of-immunohistochemistry-proteomics-and-scanning-electron-microscopy
#20
S Vigier, H Gagnon, K Bourgade, K Klarskov, T Fülöp, P Vermette
The epidemic expansion of diabetes is a major concern of public health. A promising treatment is the transplantation of islets of Langerhans isolated from the whole pancreas but the yields of islets isolation and the rates of successful engraftments still have to be improved to make this therapy effective. The extracellular matrix (ECM) of the pancreatic tissue is partially lost during the isolation process and a comprehensive knowledge of the pancreatic ECM composition and organization could identify targets to improve islets isolation and transplantation or highlight new therapeutics for pancreatic diseases...
January 2017: Current Research in Translational Medicine
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