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https://www.readbyqxmd.com/read/28325064/diabetic-foot-complications-despite-successful-pancreas-transplantation
#1
Dong-Kyo Seo, Ho Seong Lee, Jungu Park, Chang Hyun Ryu, Duck Jong Han, Sang Gyo Seo
BACKGROUND: It is known that successful pancreas transplantation enables patients with diabetes to maintain a normal glucose level without insulin and reduces diabetes-related complications. However, we have little information about the foot-specific morbidity in patients who have undergone successful pancreas transplantation. The purpose of this study was to investigate the prevalence and predisposing factors for foot complications after successful pancreas transplantation. METHODS: This retrospective study included 218 patients (91 males, 127 females) who had undergone pancreas transplantation for diabetes...
March 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28324008/vessel-network-architecture-of-adult-human-islets-promotes-distinct-cell-cell-interactions-in-situ-and-is-altered-after-transplantation
#2
Christian M Cohrs, Chunguang Chen, Stephan R Jahn, Julia Stertmann, Helena Chmelova, Jürgen Weitz, Andrea Bähr, Nikolai Klymiuk, Anja Steffen, Barbara Ludwig, Virginia Kamvissi, Eckhard Wolf, Stefan R Bornstein, Michele Solimena, Stephan Speier
Islet cell hormone release is modulated by signals from endothelial and endocrine cells within the islet. However, models of intra-islet vascularization and paracrine cell signaling are mostly based on rodent pancreas. We here assessed for the first time the architecture and endocrine cell interaction of the vascular network in unperturbed human islets in situ and their potential to re-establish their endogenous vascular network after transplantation in vivo. We prepared pancreas tissue slices of fresh tissue obtained from non-diabetic patients undergoing partial pancreatectomy...
January 27, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323195/left-ventricular-assist-device-related-infections-a-multicentric-study
#3
S Siméon, E Flécher, M Revest, M Niculescu, J-C Roussel, M Michel, P Leprince, P Tattevin
OBJECTIVES: Implantable left ventricular assist device (LVAD) is a major therapeutic progress for end-stage heart failure in selected patients. As their use is expanding, infectious complications are emerging, with limited data available to guide their management. We aimed to better characterize LVAD-related infections. METHODS: We enrolled all consecutive patients diagnosed with LVAD-related infections in 3 referral centers in France, using standardized definition of infections in patients with LVAD...
March 18, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28321468/hyperglycaemic-memory-affects-the-neurovascular-unit-of-the-retina-in-a-diabetic-mouse-model
#4
Patrick Friedrichs, Andrea Schlotterer, Carsten Sticht, Matthias Kolibabka, Paulus Wohlfart, Axel Dietrich, Thomas Linn, Grietje Molema, Hans-Peter Hammes
AIMS/HYPOTHESIS: The aim of this study was to evaluate damage to the neurovascular unit in a mouse model of hyperglycaemic memory. METHODS: A streptozotocin-induced mouse model of diabetes (C57BL/6J background) received insulin-releasing pellets and pancreatic islet-cell transplantation. Damage to the neurovascular unit was studied by quantitative retinal morphometry for microvascular changes and microarray analysis, with subsequent functional annotation clustering, for changes of the retinal genome...
March 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28319564/improvement-in-the-outcomes-of-meld-%C3%A2-40-liver-transplantation-an-analysis-of-207-consecutive-transplants-in-a-highly-competitive-dsa
#5
Victor Nekrasov, Lea Matsuoka, Navpreet Kaur, Alejandro Pita, Gilbert Whang, Shu Cao, Susan Groshen, Sophoclis Alexopoulos
BACKGROUND: Organ donor shortages continue to persist, especially in regions of the United States where competition is highest and recipients frequently attain a MELD score ≥ 40 prior to transplantation. The benefits of Share 35 in highly competitive regions may be underestimated when examining the collective national experience. The purpose of this study is to examine the outcomes of liver transplantation in recipients with a MELD ≥ 40 after implementation of Share 35 in a single center located in region 5...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28314079/low-serum-testosterone-is-associated-with-graft-function-early-after-heart-transplantation
#6
Gregor Poglajen, Mojca Jensterle, Nika Kravos, Andrej Janež, Bojan Vrtovec
BACKGROUND: We sought to investigate a correlation between serum testosterone levels and graft function early after heart transplantation. METHODS: In a cross-sectional study we measured serum testosterone levels 4 weeks after heart transplantation in 49 consecutive male recipients. Echocardiography was done to evaluate graft function. Low serum testosterone was defined as <11 nmol/L. RESULTS: Low serum testosterone was present in 21 (43%) recipients (Group A), and 28 (57%) had normal testosterone levels (Group B)...
March 17, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28302502/clinical-relevance-of-the-international-society-for-heart-and-lung-transplantation-consensus-classification-of-primary-graft-dysfunction-after-heart-transplantation-epidemiology-risk-factors-and-outcomes
#7
Mario Sabatino, Giuseppe Vitale, Valentina Manfredini, Marco Masetti, Laura Borgese, Giuseppe Maria Raffa, Antonio Loforte, Sofia Martin Suarez, Calogero Falletta, Giuseppe Marinelli, Francesco Clemenza, Francesco Grigioni, Luciano Potena
BACKGROUND: Primary graft dysfunction (P-GD) is the leading cause of early mortality after heart transplantation (HT). In this 2-center study we analyze outcomes and risk factors of P-GD according to the recent consensus conference classification endorsed by International Society for Heart and Lung Transplantation. METHODS: We included all adult HTs performed between 1999 and 2013. P-GD was graded as mild, moderate, and severe, according to International Society for Heart and Lung Transplantation recommendations, and analyzed separately from secondary GD...
February 17, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28296035/sepsis-after-renal-transplantation-clinical-immunological-and-microbiological-risk-factors
#8
Thomas Schachtner, Maik Stein, Petra Reinke
BACKGROUND: As immunosuppressive therapy and allograft survival have improved, the increased incidence of sepsis has become a major hurdle of disease-free survival after renal transplantation. METHODS: We identified 112 of 957 kidney transplant recipients (KTRs) with sepsis. 31 KTRs developed severe sepsis or septic shock, and 30 KTRs died from sepsis. KTRs without sepsis were used for comparison. CMV-specific and alloreactive T-cells were measured using an interferon-γ Elispot-assay...
March 11, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28295620/kidney-dysfunction-after-cardiac-transplantation-does-early-acute-kidney-injury-translate-into-inferior-long-term-patient-and-renal-outcomes
#9
Miha Arnol, Ivan Kneževič
Both cardiac and kidney diseases are extremely common in the population and are intimately interconnected. First, both conditions share several etiological factors (e.g., hypertension, diabetes mellitus). Second, a steady stream of studies has highlighted the negative heart-kidney interaction in such a way that any acute or chronic dysfunction of the former may affect the latter, and reciprocally, as part of the cardiorenal syndromes [1]. This article is protected by copyright. All rights reserved.
March 14, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28289675/humoral-immunodeficiency-with-hypotonia-feeding-difficulties-enteropathy-and-mild-eczema-caused-by-a-classical-foxp3-mutation
#10
Paul Tuijnenburg, Eloy Cuadrado, Annet M Bosch, Angelika Kindermann, Machiel H Jansen, Marielle Alders, Ester M M van Leeuwen, Taco W Kuijpers
We describe here the case of a boy who presented with pulmonary infections, feeding difficulties due to velopharyngeal insufficiency and gastroesophageal reflux, myopathy, and hypotonia soon after birth. Later, he was also found to have an elevated immunoglobulin (Ig) E and mild eczema and was diagnosed with inflammatory bowel disease. Further immunological screening at the age of 7 years showed low B and NK cell numbers but normal CD4(+) and CD8(+) T cells and notably, normal numbers of CD4(+) regulatory T (Treg) cells...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28285194/islet-encapsulation-with-polyphenol-coatings-decreases-pro-inflammatory-chemokine-synthesis-and-t-cell-trafficking
#11
Dana Pham-Hua, Lindsey E Padgett, Bing Xue, Brian Anderson, Michael Zeiger, Jessie M Barra, Maigen Bethea, Chad S Hunter, Veronika Kozlovskaya, Eugenia Kharlampieva, Hubert M Tse
Type 1 Diabetes (T1D) is a chronic pro-inflammatory autoimmune disease consisting of islet-infiltrating leukocytes involved in pancreatic β-cell lysis. One promising treatment for T1D is islet transplantation; however, clinical application is constrained due to limited islet availability, adverse effects of immunosuppressants, and declining graft survival. Islet encapsulation may provide an immunoprotective barrier to preserve islet function and prevent immune-mediated rejection after transplantation. We previously demonstrated that a novel cytoprotective nanothin multilayer coating for islet encapsulation consisting of tannic acid (TA), an immunomodulatory antioxidant, and poly(N-vinylpyrrolidone) (PVPON), was efficacious in dampening in vitro immune responses involved in transplant rejection and preserving in vitro islet function...
March 6, 2017: Biomaterials
https://www.readbyqxmd.com/read/28281103/current-evidence-on-vitamin-d-deficiency-and-kidney-transplant-what-s-new
#12
REVIEW
Gerardo Sarno, Riccardo Nappi, Barbara Altieri, Giacomo Tirabassi, Emanuele Muscogiuri, Gianmaria Salvio, Stavroula A Paschou, Aristide Ferrara, Enrico Russo, Daniela Vicedomini, Cerbone Vincenzo, Andromachi Vryonidou, Silvia Della Casa, Giancarlo Balercia, Francesco Orio, Paride De Rosa
Kidney transplant is the treatment of choice for end-stage chronic kidney disease. Kidneys generate 1,25-dihydroxyvitamin D (calcitriol) from 25-hydroxyvitamin D (calcidiol) for circulation in the blood to regulate calcium levels. Transplant patients with low calcidiol levels have an increased risk of metabolic and endocrine problems, cardiovascular disease, type 2 diabetes mellitus, poor graft survival, bone disorders, cancer, and mortality rate. The recommended calcidiol level after transplant is at least 30 ng/mL (75 nmol/L), which could require 1000-3000 IU/d vitamin D3 to achieve...
March 9, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28275376/immunological-balance-is-associated-with-clinical-outcome-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes
#13
Kelen C R Malmegrim, Júlia T C de Azevedo, Lucas C M Arruda, Joana R F Abreu, Carlos E B Couri, Gislane L V de Oliveira, Patricia V B Palma, Gabriela T Scortegagna, Ana B P L Stracieri, Daniela A Moraes, Juliana B E Dias, Fabiano Pieroni, Renato Cunha, Luiza Guilherme, Nathália M Santos, Milton C Foss, Dimas T Covas, Richard K Burt, Belinda P Simões, Júlio C Voltarelli, Bart O Roep, Maria C Oliveira
Autologous hematopoietic stem cell transplantation (AHSCT) increases C-peptide levels and induces insulin independence in patients with type 1 diabetes. This study aimed to investigate how clinical outcomes may associate with the immunological status, especially concerning the balance between immunoregulation and autoreactivity. Twenty-one type 1 diabetes patients were monitored after AHSCT and assessed every 6 months for duration of insulin independence, C-peptide levels, frequencies of islet-specific autoreactive CD8(+) T cells (CTL), regulatory lymphocyte subsets, thymic function, and T-cell repertoire diversity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28270107/incidence-of-cardiovascular-events-and-associated-risk-factors-in-kidney-transplant-patients-a-competing-risks-survival-analysis
#14
María Teresa Seoane-Pillado, Salvador Pita-Fernández, Francisco Valdés-Cañedo, Rocio Seijo-Bestilleiro, Sonia Pértega-Díaz, Constantino Fernández-Rivera, Ángel Alonso-Hernández, Cristina González-Martín, Vanesa Balboa-Barreiro
BACKGROUND: The high prevalence of cardiovascular risk factors among the renal transplant population accounts for increased mortality. The aim of this study is to determine the incidence of cardiovascular events and factors associated with cardiovascular events in these patients. METHODS: An observational ambispective follow-up study of renal transplant recipients (n = 2029) in the health district of A Coruña (Spain) during the period 1981-2011 was completed...
March 7, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28263224/acute-ischemia-induced-by-high-density-culture-increases-cytokine-expression-and-diminishes-the-function-and-viability-of-highly-purified-human-islets-of-langerhans
#15
Kate E Smith, Amy C Kelly, Catherine G Min, Craig S Weber, Fiona M McCarthy, Leah V Steyn, Vasudeo Badarinarayana, J Brett Stanton, Jennifer P Kitzmann, Peter Strop, Angelika C Gruessner, Ronald M Lynch, Sean W Limesand, Klearchos K Papas
BACKGROUND: Encapsulation devices have the potential to enable cell based insulin replacement therapies (such as human islet or stem cell derived β cell transplantation) without immunosuppression. However, reasonably sized encapsulation devices promote ischemia due to high β cell densities creating prohibitively large diffusional distances for nutrients. It is hypothesized that even acute ischemic exposure will compromise the therapeutic potential of cell based insulin replacement. In this study, the acute effects of high-density ischemia were investigated in human islets to develop a detailed profile of early ischemia induced changes and targets for intervention...
March 3, 2017: Transplantation
https://www.readbyqxmd.com/read/28262264/the-incidence-of-new-onset-diabetes-after-transplantation-and-related-factors-single-center-experience
#16
Ayse Sinangil, Vedat Celik, Soykan Barlas, Yener Koc, Taner Basturk, Tamer Sakaci, Emin Baris Akin, Tevfik Ecder
AIM: New-onset diabetes after transplantation (NODAT) is a frequent metabolic complication and is considered a risk factor for patients undergoing renal transplant. The aim of this study was to evaluate the incidence and developing duration of new-onset diabetes after transplant (NODAT) and influencing factors. METHODS: All patients' data was investigated retrospectively. Diabetics, follow-up period<6 months, age<18years were excluded. Demographic, clinical and laboratory data was recorded...
March 2, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28261211/targeting-the-monocyte-macrophage-lineage-in-solid-organ-transplantation
#17
REVIEW
Thierry P P van den Bosch, Nynke M Kannegieter, Dennis A Hesselink, Carla C Baan, Ajda T Rowshani
There is an unmet clinical need for immunotherapeutic strategies that specifically target the active immune cells participating in the process of rejection after solid organ transplantation. The monocyte-macrophage cell lineage is increasingly recognized as a major player in acute and chronic allograft immunopathology. The dominant presence of cells of this lineage in rejecting allograft tissue is associated with worse graft function and survival. Monocytes and macrophages contribute to alloimmunity via diverse pathways: antigen processing and presentation, costimulation, pro-inflammatory cytokine production, and tissue repair...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28260939/infectious-anastomotic-pseudoaneurysm-complicating-renal-allograft-case-report-and-review-of-literature
#18
Marvin Mt Chung, Yiu Che Chan, Yuk Law, Stephen Wk Cheng
Infectious anastomotic pseudoaneurysm complicating renal transplant is rare, but probably under-reported with <30 cases worldwide. We report a 45-year-old man with hypertension, diabetes mellitus and end stage renal failure, who had a renal transplant anastomosed to the right external iliac artery and vein. Postoperatively, he made a slow recovery with malaise and persistent vague right iliac fossa discomfort. Ultrasound scan 1 month postoperatively showed perinephric collection, and fluid culture grew Enterococcus faecium and Pseudomonas aeruginosa...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28260480/living-donor-liver-transplant-follow-up-a-singlecenter-experience
#19
Syed Mudassir Laeeq, Farina M Hanif, Nasir Hassan Luck, Rajesh Kumar Mandhwani, Jawed Iqbal, Syed Haider Mehdi
OBJECTIVES: Liver transplant is a definite treatment of decompensated liver disease. Because of the shortage of livers from deceased donors, living-donor liver transplant is becoming more common. Here, we analyzed our clinical experience in the follow-up care of these patients. MATERIALS AND METHODS: Liver transplant recipients seen at the Sindh Institute of Urology and Transplantation (Karachi, Pakistan) were included in this analysis. Baseline characteristics and follow-up events were recorded...
February 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28260466/leptin-levels-in-patients-with-type-1-diabetes-mellitus-after-fetal-pancreatic-stem-cell-transplant
#20
Olga Ulyanova, Abay Baigenzhin, Zhannat Taubaldieva, Saltanat Tuganbekova, Larissa Kozina, Samat Saparbayev
OBJECTIVES: Our objective was to determine leptin levels in patients with type 1 diabetes mellitus after fetal pancreatic stem cell transplant. MATERIALS AND METHODS: Seven patients, aged 20 to 42 years, with type 1 diabetes mellitus received a fetal pancreatic stem cell transplant by intravenous infusion. The quantity of fetal stem cells infused was ≥ 5 × 10⁶, and the cells were of 12 to 14 weeks of gestation. We analyzed the levels of leptin, C-peptide, and antibodies to the islets of Langerhans before and 3 months after the transplant procedure...
February 2017: Experimental and Clinical Transplantation
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