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Pancreas transplantation

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https://www.readbyqxmd.com/read/29676018/conversion-from-tacrolimus-mycophenolate-mofetil-to-tacrolimus-mtor-immunosuppression-after-kidney-pancreas-transplantation-reduces-the-incidence-of-both-bk-and-cmv-viremia
#1
Richard J Knight, Edward A Graviss, Duc T Nguyen, Samantha A Kuten, Samir J Patel, Lillian Gaber, A Osama Gaber
BACKGROUND: We sought to determine if conversion from tacrolimus/mycophenolate mofetil (TAC-MMF) to tacrolimus/mTOR inhibitor (TAC-mTOR) immunosuppression would reduce the incidences of BK and CMV viremia after kidney/pancreas (KP) transplantation. METHODS: In this single center review, the TAC-mTOR cohort (n=39) was converted at one month post-transplant to an mTOR inhibitor and reduced dose tacrolimus. Outcomes were compared to a cohort of KP recipients (n=40) maintained on TAC-MMF...
April 19, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29675567/human-urine-derived-stem-cells-play-a-novel-role-in-the-treatment-of-stz-induced-diabetic-mice
#2
Tianxue Zhao, Deng Luo, Yun Sun, Xin Niu, Yang Wang, Chen Wang, Weiping Jia
Human urine-derived stem cells (hUSCs) are a potential stem cell source for cell therapy. However, the effect of hUSCs on glucose metabolism regulation in type 1 diabetes was not clear. Therefore, the aim of the study was to evaluate whether hUSCs have protective effect on streptozotocin (STZ)-induced diabetes. hUSCs were extracted and cultivated with a special culture medium. Flow cytometry analysis was applied to detect cell surface markers. BALB/c male nude mice were either injected with high-dose STZ (HD-STZ) or multiple low-dose STZ (MLD-STZ)...
April 19, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29661440/renopancreatic-transplantation-evaluation-of-15-years-in-131-patients
#3
C G Marmanillo, C Langaro, J E Nicoluzzi, R T Belila, M Macri, R Zamprogna, M Luvizotto, M Takahashi
BACKGROUND: The most common multiple-organ transplant is the simultaneous pancreas-kidney transplantation (SPK). It is usually offered to patients who have insulin-dependent diabetes mellitus and those with diabetic nephropathy and renal failure that has already been established. In this study we present the results of 15 years of SPK in a transplant hospital center in Paraná, Brazil, and evaluated survival, immunosuppression, and transplant-related problems. METHODS: This study was a retrospective analysis of 131 SPK transplants performed at the Angelina Caron Hospital between January 2001 and December 2015...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29661420/use-of-georges-lopez-institute-preservation-solution-igl-1-in-pancreas-transplantation-a-series-of-47-cases
#4
M R Igreja, J C Wiederkehr, B A Wiederkehr, A Maykon Massutti, H de Aguiar Wiederkehr
BACKGROUND: Graft preservation continues to be one of the main pillars of pancreas transplantation (PT). Surgical complications, possibly caused or facilitated by organ damage during preservation, continue to occur more frequently after PT than for any other abdominal organ. During the past few years, the Georges Lopez Institute preservation solution IGL-1 has been introduced with satisfactory results for the perfusion and cold storage of abdominal grafts such as kidney and liver. METHODS: Aspects related to 47 PTs with the use of IGL-1 as the only preservation solution performed from January 2012 to September 2017 at Hospital Santa Isabel, Blumenau, Brazil, were retrospectively analyzed...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29656530/mycobacterium-tuberculosis-after-solid-organ-transplantation-a-review-of-more-than-2000-cases
#5
Cybele Lara R Abad, Raymund R Razonable
BACKGROUND: Mycobacterium tuberculosis (TB) is a common pathogen worldwide, and it may cause significant infection after solid organ transplantation (SOT). We reviewed all reported TB cases to provide an update on its epidemiology, clinical presentation, management and outcome after SOT. METHODS: MEDLINE, EMBASE, and OVID were reviewed from January 1, 1998 to Dec 31, 2016 using key words tuberculosis and solid organ transplant or transplantation. RESULTS: There were 187 publications reporting 2082 cases of TB among kidney (n=1719), liver (n=253), heart (n=77), lung (n=25), and kidney-pancreas (n=8) recipients...
April 15, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29656065/penile-prosthesis-in-solid-organ-transplant-recipients-a-matched-cohort-study
#6
Andrew Y Sun, Paurush Babbar, Bradley C Gill, Kenneth W Angermeier, Drogo K Montague
OBJECTIVES: To determine whether solid organ transplant (SOT) patients are at higher risk of developing complications after inflatable penile prosthesis (IPP) implantation. METHODS: We retrospectively reviewed outcomes data for all patients with SOT who underwent IPP placement at our institution. A cohort of age-matched IPP recipients without SOT were used as controls. RESULTS: We identified 26 patients who underwent SOT and IPP between 1999-2015, and 26 controls...
April 12, 2018: Urology
https://www.readbyqxmd.com/read/29625745/evaluation-of-a-single-pass-with-biphasic-intravenous-contrast-medium-injection-ct-protocol-for-the-assessment-of-complications-post-simultaneous-pancreas-kidney-transplant
#7
D Y-F Chung, E M Anderson
AIM: To evaluate the use of a single-pass with biphasic intravenous contrast medium injection computed tomography (CT) protocol to provide diagnostic quality CT studies for the assessment of complications post-simultaneous pancreas-kidney transplant (SPK). MATERIALS AND METHODS: This was an audit of practice and the need for informed consent was waived. The protocol was used in consecutive patients undergoing CT to exclude intra-abdominal sepsis post-SPK between June and December 2015...
April 3, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29624811/bilateral-adrenal-hemorrhage-in-a-neonatal-kidney-donor
#8
Sonsoles Martinez-Lopez, Imeshi Wijetunga, Clare Ecuyer, Niaz Ahmad
EKT from neonatal donors remains rare despite successful outcome being reported. The surgical aspects of neonatal abdominal organ recovery remain unfamiliar to the vast majority of abdominal organ recovery teams and renal transplant surgeons. BAH is not uncommon in newborn babies suffering distress in the perinatal period. BAH is often also associated with RVT and will impact on utilization of kidneys for transplantation. We present a case of a neonatal kidney donor with massive BAHs discovered at the time of organ recovery...
April 6, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29622761/simultaneous-pancreas-kidney-transplantation-in-a-patient-with-heparin-induced-thrombocytopenia-on-dabigatran-therapy
#9
Agnieszka Jóźwik, Wojciech Lisik, Jarosław Czerwiński, Maciej Kosieradzki
BACKGROUND New oral anticoagulants like direct thrombin inhibitors are an attractive alternative to vitamin K antagonists as anticoagulation therapy and can be used in heparin-induced thrombocytopenia. They are convenient in low-risk surgery, as there is no need for bridging with heparins. Patients who need urgent major surgery are at similar risk as on warfarin therapy, which, however, is much higher than in elective procedures. Due to their elimination profiles, these drugs are generally contraindicated in patients with severe renal insufficiency...
April 6, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29622345/early-islets-and-mesenchyme-from-an-injured-adult-pancreas-improve-syngeneic-engraftments-and-islet-graft-function-in-diabetic-rats
#10
Venant Tchokonte-Nana, Juziel Kampando Manda
A decrease in mass of isografts and a decline in islet function are major challenges in islet transplantations. Despite this, transplantation of 84 h harvested pancreatic duct ligation (PDL) tissues have been shown to have the same functional ability to foetal pancreata, but there was only 40% success in reverting hyperglycaemia. We tested the potential of early islets with mesenchymal stromal cells (MSCs) to promote isogeneic grafts survival and to restore normoglycemia in diabetic rats, in comparison with late islets...
April 2, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29621044/impact-of-oxygen-on-pancreatic-islet-survival
#11
Hirotake Komatsu, Fouad Kandeel, Yoko Mullen
Pancreatic islet transplantation is a promising treatment option for individuals with type 1 diabetes; however, maintaining islet function after transplantation remains a large challenge. Multiple factors, including hypoxia associated events, trigger pretransplant and posttransplant loss of islet function. In fact, islets are easily damaged in hypoxic conditions before transplantation including the preparation steps of pancreas procurement, islet isolation, and culture. Furthermore, after transplantation, islets are also exposed to the hypoxic environment of the transplant site until they are vascularized and engrafted...
April 4, 2018: Pancreas
https://www.readbyqxmd.com/read/29620617/pancreas-transplantation-from-pediatric-donors-a-single-center-experience
#12
Mario Spaggiari, Caterina Di Bella, Pierpaolo Di Cocco, Maya Campara, Kelly Galen, Federico Gheza, Jose Oberholzer, Enrico Benedetti, Ivo Tzvetanov
BACKGROUND: Pancreas allografts from pediatric donors are considered less suitable due to the increased risk of surgical complications and reduced islet cell mass that may compromise function. METHODS: All pancreatic transplants, procured from donors <18 years old, between January 2007 and March 2017, were included in the analysis. The grafts were subdivided into 3 groups by donor's weight: <30kg, 30-60kg, >60kg. Analysis of patient and graft survival was done between the groups, and subsequently between the pediatric cohort and the adult-donor control group...
April 3, 2018: Transplantation
https://www.readbyqxmd.com/read/29617192/optical-clearing-of-the-pancreas-for-visualization-of-mature-%C3%AE-cells-and-vessels-in-mice
#13
Wataru Nishimura, Asako Sakaue-Sawano, Satoru Takahashi, Atsushi Miyawaki, Kazuki Yasuda, Yasuko Noda
Glucose metabolism is regulated by insulin, which is produced from β-cells in the pancreas. Because insulin is secreted into vessels in response to blood glucose, vascular structures of the pancreas, especially the relationship between vessels and β-cells, are important for physiological and pathological glucose metabolism. Here, we developed a system to visualize vessels surrounding mature β-cells expressing transcription factor MafA in a three-dimensional manner. Optical clearing of the pancreas prevented light scattering of fluorescence driven by the bacterial artificial chromosome (BAC)-mafA promoter in β-cells...
April 4, 2018: Islets
https://www.readbyqxmd.com/read/29611212/design-of-bioartificial-pancreases-from-the-standpoint-of-oxygen-supply
#14
Hiroo Iwata, Yusuke Arima, Yusuke Tsutsui
A bioartificial pancreas (BAP), in which islets of Langerhans (islets) are enclosed in a semipermeable membrane, has been developed to realize islet transplantation without the use of immunosuppressive drugs. Although recent progress in induced pluripotent stem (iPS) and embryonic stem (ES) cells has attracted attention owing to the potential applications of these cells as insulin-releasing cells, concerns about the safety of implantation of these cells remain. The use of the BAP has the advantage of easy removal if insulin-releasing cells derived from iPS/ES cells undesirably proliferate and form tumors in the BAP...
April 2, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29606260/-transplantation-strategy-in-type-1-diabetic-patients
#15
Fanny Buron, Lionel Badet, Emmanuel Morelon
Beta cell replacement by pancreas or Langerhans islets transplantation is the only way to restore glucose homeostasis in type 1 diabetic patients. The counterpart is the need for long-term immunosuppression. These transplantations are therefore mainly indicated for patients candidates for kidney transplantation and for patients with poor quality of life due to unstable diabetes with life-threatening hypoglycemic events. Both beta cell replacement techniques have different benefits and risks and should be adapted to each type 1 diabetic patient...
April 2018: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29604531/the-successful-salvage-of-a-thrombosed-pancreatic-graft-at-the-early-postoperative-period-of-a-simultaneous-pancreas-and-kidney-transplantation
#16
Rauf Shahbazov, Feredun Azari, Park Auh Whan, Liu Wei, Avinash Agarwal, Kenneth L Brayman
INTRODUCTION: Simultaneous kidney and pancreas transplant is the preferred treatment option for end-stage renal disease due to type 1 diabetic nephropathy. Vascular complications are detrimental to graft survival and can lead to graft loss in the early postoperative phase of transplantation. Generally, duplex Doppler ultrasound is used for vascular patency monitoring and pancreatectomy followed by re-transplantation is required in the majority of cases. Recently, pancreatic graft salvage with non-operative management, including medical anticoagulation and endovascular thrombectomy, in the early postoperative period has been described with success...
March 16, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29603452/pancreas-preservation-fluid-microbial-contamination-is-associated-with-poor-islet-isolation-outcomes-a-multi-centre-cohort-study
#17
Raphael P H Meier, Diego O Andrey, Pamela Sun, Nadja Niclauss, Benoît Bédat, Sandrine Demuylder-Mischler, Sophie Borot, Pierre-Yves Benhamou, Anne Wojtusciszyn, Fanny Buron, Nadine Pernin, Yannick D Muller, Domenico Bosco, Christian van Delden, Thierry Berney
BACKGROUND: The microbiological safety of islet preparations is paramount. Preservation medium contamination is frequent and its impact on islet yield and function remains unclear. METHODS: Microbiological samples collected during islet isolations from 2006 to 2016 were analyzed and correlated to isolation and allo- and auto-transplantation outcomes. RESULTS: Microbial contamination of preservation medium was found in 64.4% of processed donor pancreases (291/452)...
March 30, 2018: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/29599935/bk-virus-associated-collecting-duct-carcinoma-of-the-renal-allograft-in-a-kidney-pancreas-allograft-recipient
#18
Myriam Dao, Adrien Pécriaux, Thomas Bessede, Antoine Dürrbach, Charlotte Mussini, Catherine Guettier, Sophie Ferlicot
BK polyomavirus (BKV) nephropathy is a major concern in renal transplantation. Its main consequence is graft loss, which occurs in more than 50% of the cases. De novo renal cell carcinoma in renal allograft is a very rare event. Most of these tumors are papillary or clear cell carcinomas. We report herein the first case of collecting duct carcinoma of the renal allograft in a kidney-pancreas allograft adult recipient. Collecting duct carcinoma occurs long after the cure of a BKV nephropathy. At this time, BKV viremia and viruria were negative as well as the immunostaining for SV40 in the non-tumor kidney...
March 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29599125/establishment-of-human-pluripotent-stem-cell-derived-pancreatic-%C3%AE-like-cells-in-the-mouse-pancreas
#19
Haiting Ma, Katherine J Wert, Dmitry Shvartsman, Douglas A Melton, Rudolf Jaenisch
Type 1 diabetes is characterized by autoimmune destruction of β cells located in pancreatic islets. However, tractable in vivo models of human pancreatic β cells have been limited. Here, we generated xenogeneic human pancreatic β-like cells in the mouse pancreas by orthotopic transplantation of stem cell-derived β (SC-β) cells into the pancreas of neonatal mice. The engrafted β-like cells expressed β cell transcription factors and markers associated with functional maturity. Engrafted human cells recruited mouse endothelial cells, suggesting functional integration...
March 29, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29597032/current-advanced-therapy-cell-based-medicinal-products-for-type-1-diabetes-treatment
#20
REVIEW
Alberto Cañibano-Hernández, Laura Sáenz Del Burgo, Albert Espona-Noguera, Jesús Ciriza, Jose Luis Pedraz
In the XXI century diabetes mellitus has become one of the main threats to human health with higher incidence in regions such as Europe and North America. Type 1 diabetes mellitus (T1DM) occurs as a consequence of the immune-mediated destruction of insulin producing β-cells located in the endocrine part of the pancreas, the islets of Langerhans. The administration of exogenous insulin through daily injections is the most prominent treatment for T1DM but its administration is frequently associated to failure in glucose metabolism control, finally leading to hyperglycemia episodes...
March 27, 2018: International Journal of Pharmaceutics
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