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Total pancreatectomy islet transplantation

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https://www.readbyqxmd.com/read/28583545/simultaneous-subtotal-pancreatectomy-and-streptozotocin-injection-for-diabetes-modeling-in-cynomolgus-monkeys
#1
H Park, J B Park, J H Kim, K W Lee, H S Lee, G-S Kim, D-Y Shin, S-H Oh, S-M Jin, S J Kim
BACKGROUND: In an experimental animal model of islet transplantation, stable induction of insulin-dependent diabetes mellitus (IDDM) and islet isolation from donor pancreas are essential. Total pancreatectomy for IDDM induction and islet procurement in nonhuman primates leads to unwanted loss of exocrine function and may lead to morbidities associated with IDDM. METHODS: IDDM induction with streptozotocin (STZ) is associated with drug toxicity of STZ and necessitates the killing of another animal for islet procurement...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28562418/autologous-islet-transplantation-challenges-and-lessons
#2
Ty B Dunn, Joshua J Wilhelm, Melena D Bellin, Timothy L Pruett
PURPOSE OF REVIEW: Human islet isolation and autotransplantation [autologous islet transplant (AUTX)] is performed to prevent or ameliorate brittle diabetes after total pancreatectomy performed for benign disease. The success or failure of the transplant can be associated with a profound impact on the individual's quality of life and even survival. AUTX offers unique insights into the effects of pancreas quality, islet number, isolation technique and alternate site engraftment on transplant efficacy...
May 29, 2017: Current Opinion in Organ Transplantation
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
#3
Luis F Lara, Morihito Takita, James S Burdick, Daniel C DeMarco, Ronnie R Pimentel, Tolga Erim, Marlon F Levy
BACKGROUND AND AIMS: Direct pancreas juice testing of bicarbonate, lipase, or trypsin after stimulation by secretin or cholecystokinin is used to determine exocrine function, a surrogate for diagnosing chronic pancreatitis (CP). Endoscopic pancreas function tests (ePFTs), 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/28325587/the-impact-of-allogenic-blood-transfusion-on-the-outcomes-of-total-pancreatectomy-with-islet-autotransplantation
#4
Gumpei Yoshimatsu, Rauf Shahbazov, Giovanna Saracino, Michael C Lawrence, Peter T Kim, Nicholas Onaca, Ernest E Beecherl, Bashoo Naziruddin, Marlon F Levy
BACKGROUND: Allogenic blood transfusion (ABT) may be needed for severe bleeding during total pancreatectomy with autotransplantation (TPIAT), but may induce inflammation. This study investigated the impact of ABT. METHODS: With a population of 83 patients who underwent TPIAT from 2006 to 2014, this study compared cytokine levels, patient characteristics, islet characteristics, metabolic outcomes, insulin requirements, and hemoglobin A1c for those who received a blood transfusion (BT) versus no blood transfusion (NBT)...
March 15, 2017: American Journal of Surgery
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
#5
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/28317340/production-of-pancreatic-progenitor-cells-from-human-induced-pluripotent-stem-cells-using-a-three-dimensional-suspension-bioreactor-system
#6
Yuichiro Mihara, Katsuhisa Matsuura, Yoshihiro Sakamoto, Teruo Okano, Norihiro Kokudo, Tatsuya Shimizu
Islet replacement is a promising strategy for the treatment of patients with type 1 diabetes and patients who have undergone total pancreatectomy. Recent progress in cellular reprogramming technology may allow the transplantation of a patient's own pancreatic cells. Although many studies have reported the differentiation of pancreatic progenitor cells from mouse and human pluripotent stem cells (PSCs), obtaining sufficient cell numbers for clinical applications remains problematic. Here, we describe the mass production of human pancreatic progenitor cells from human induced (i)PSCs using a three-dimensional suspension bioreactor system...
March 20, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28169284/long-term-glycemic-control-in-adult-patients-undergoing-remote-vs-local-total-pancreatectomy-with-islet-autotransplantation
#7
COMPARATIVE STUDY
Samuel J Kesseli, Matthew Wagar, Min K Jung, Kerrington D Smith, Yu Kuei Lin, R Matthew Walsh, Betul Hatipoglu, Martin L Freeman, Timothy L Pruett, Gregory J Beilman, David E R Sutherland, Ty B Dunn, David A Axelrod, Sushela S Chaidarun, Tyler K Stevens, Melena Bellin, Timothy B Gardner
OBJECTIVES: Total pancreatectomy with islet autotransplantation (TPIAT) is increasingly performed with remote islet cell processing and preparation, i.e., with islet cell isolation performed remotely from the primary surgical site at an appropriately equipped islet isolation facility. We aimed to determine whether TPIAT using remote islet isolation results in comparable long-term glycemic outcomes compared with TPIAT performed with standard local isolation. METHODS: We performed a retrospective cohort study of adult patients who underwent TPIAT at three tertiary care centers from 2010 to 2013...
April 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27870552/glycemic-predictors-of-insulin-independence-after-total-pancreatectomy-with-islet-autotransplantation
#8
Michael Quartuccio, Erica Hall, Vikesh Singh, Martin A Makary, Kenzo Hirose, Niraj Desai, Christi Walsh, Daniel Warren, Zhaoli Sun, Ellen Stein, Rita R Kalyani
Context: Total pancreatectomy with islet auto transplantation (TPIAT) is a treatment for medically refractory chronic pancreatitis that can prevent postsurgical diabetes in some patients. Predictors of insulin independence are needed for appropriate patient selection and counseling. Objective: To explore glycemic predictors of insulin independence after TPIAT. Design: A prospective cohort of patients. Methods: We investigated 34 patients undergoing TPIAT from 2011-2016 at Johns Hopkins Hospital, all had a 75-g oral glucose tolerance test (OGTT) administered prior to their TPIAT...
March 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27760705/clinical-effectiveness-of-a-pylorus-preserving-procedure-on-total-pancreatectomy-with-islet-autotransplantation
#9
Rauf Shahbazov, Gumpei Yoshimatsu, Waqas Z Haque, Omar S Khan, Giovanna Saracino, Michael C Lawrence, Peter T Kim, Nicholas Onaca, Bashoo Naziruddin, Marlon F Levy
BACKGROUND: The impact of pylorus preserving procedures (PP) on total pancreatectomy with islet autotransplantation (TPIAT) has not been examined. This study aimed to investigate the clinical impact of the PP on TPIAT. METHODS: The Baylor Simmons Transplant Institute database was queried to identify seventy-three patients who underwent TPIAT from 2006 to 2014. All patients were investigated in postoperative complications, long-term nutritional status, and graft function...
October 8, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27643615/unmethylated-insulin-dna-is-elevated-after-total-pancreatectomy-with-islet-autotransplantation-assessment-of-a-novel-beta-cell-marker
#10
M D Bellin, P Clark, S Usmani-Brown, T B Dunn, G J Beilman, S Chinnakotla, T L Pruett, P Ptacek, B J Hering, Z Wang, T Gilmore, J J Wilhelm, J S Hodges, A Moran, K C Herold
Beta cell death may occur both after islet isolation and during infusion back into recipients undergoing total pancreatectomy with islet autotransplantation (TPIAT) for chronic pancreatitis. We measured the novel beta cell death marker unmethylated insulin (INS) DNA in TPIAT recipients before and immediately after islet infusion (n = 21) and again 90 days after TPIAT, concurrent with metabolic functional assessments (n = 25). As expected, INS DNA decreased after pancreatectomy (p = 0.0002). All TPIAT recipients had an elevated unmethylated INS DNA ratio in the first hours following islet infusion...
April 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/27623240/the-impact-of-bacterial-colonization-on-graft-success-after-total-pancreatectomy-with-autologous-islet-transplantation-considerations-for-early-definitive-surgical-intervention
#11
Joshua S Jolissaint, Linda W Langman, Claire L DeBolt, Jacob A Tatum, Allison N Martin, Andrew Y Wang, Daniel S Strand, Victor M Zaydfudim, Reid B Adams, Kenneth L Brayman
OBJECTIVE: The purpose of this study was to determine whether bacterial contamination of islets affects graft success after total pancreatectomy with islet autotransplantation (TPIAT). BACKGROUND: Factors associated with insulin independence after TPIAT are inconclusive. Although bacterial contamination does not preclude transplantation, the impact of bacterial contamination on graft success is unknown. METHODS: Patients who received TPIAT at the University of Virginia between January 2007 and January 2016 were reviewed...
November 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27610653/spontaneous-hypoglycemia-after-islet-transplantation-the-case-for-using-non-hepatic-sites
#12
R Paul Robertson
This Perspective provides a brief history of intrahepatic alloislet and autoislet transplantation in humans and an update of the recent success rates. It also examines the important role that hypoglycemia plays in clinical outcomes. On the one hand, recurrent serious hypoglycemic episodes related to insulin therapy are a major criterion for alloislet transplantation. On the other hand, spontaneous clinical hypoglycemia, perhaps related to the accompanying Roux-en-Y procedure for total pancreatectomy, is a complication of autoislet transplantation...
October 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27465328/gastric-submucosa-is-inferior-to-the-liver-as-transplant-site-for-autologous-islet-transplantation-in-pancreatectomized-diabetic-beagles
#13
Zhu-Zeng Yin, Shu-Sen Wang, Qiang Li, Ying Huang, Li Chen, Gang Chen, Rong Liu, Xi-Mo Wang
Intraportal transplantation of islets is no longer considered to be an ideal procedure and finding the extrahepatic alternative site is becoming a subject of high priority. Herein, in this study, we would introduce our initial outcomes of using gastric submucosa (GS) and liver as sites of islet autotransplantation in pancreatectomized diabetic Beagles. Total pancreatectomy was performed in Beagles and then their own islets extracted from the excised pancreas were transplanted into GS (GS group, n=8) or intrahepatic via portal vein (PV group, n=5)...
August 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27429015/mir-375-and-mir-200c-as-predictive-biomarkers-of-islet-isolation-and-transplantation-in-total-pancreatectomy-with-islet-autotransplantation
#14
Gumpei Yoshimatsu, Morihito Takita, Mazhar A Kanak, Waqas Z Haque, Charles Chang, Prathab Balaji Saravanan, Michael C Lawrence, Marlon F Levy, Bashoo Naziruddin
BACKGROUND: Total pancreatectomy with islet autotransplantation (TPIAT) is a promising treatment for refractory chronic pancreatitis. Predictable biomarkers for the endocrine function after transplantation would be helpful in selecting patients for TPIAT. This study aims to identify novel biomarkers for predicting the outcome of islet isolation and transplantation in TPIAT patients. METHODS: This paper studied microRNA of 31 TPIAT patients and 11 deceased donors from plasma samples before TPIAT...
September 2016: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/27376692/tolerance-of-vascularized-islet-kidney-transplants-in-rhesus-monkeys
#15
V Pathiraja, V Villani, M Tasaki, A J Matar, R Duran-Struuck, R Yamada, S G Moran, E S Clayman, J Hanekamp, A Shimizu, D H Sachs, C A Huang, K Yamada
We previously reported that transplantation (Tx) of prevascularized donor islets as composite islet-kidneys (IK) reversed diabetic hyperglycemia in both miniature swine and baboons. In order to enhance this strategy's potential clinical applicability, we have now combined this approach with hematopoietic stem cell (HSC) Tx in an attempt to induce tolerance in nonhuman primates. IKs were prepared by isolating islets from 70% partial pancreatectomies and injecting them beneath the autologous renal capsule of five rhesus monkey donors at least 3 months before allogeneic IK Tx...
January 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/27358790/islet-autotransplantation-in-a-patient-with-hypercoagulable-disorder
#16
Chirag S Desai, Khalid M Khan, Wanxing Cui
Total pancreatectomy and islet auto transplantation is a good option for chronic pancreatitis patients who suffer from significant pain, poor quality of life, and the potential of type 3C diabetes and pancreatic cancer. Portal vein thrombosis is the most feared complication of the surgery and chances are increased if the patient has a hypercoagulable disorder. We present a challenging case of islet auto transplantation from our institution. A 29-year-old woman with plasminogen activator inhibitor-4G/4G variant and a clinical history of venous thrombosis was successfully managed with a precise peri- and post-operative anticoagulation protocol...
June 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/27345954/autotransplantation-of-pancreatic-islets-a-single-center-first-experience
#17
Paolo Magistri, Sara Andreani, Domenico Lo Conte, Giovanni Carlo Ferrari, Antonello Forgione, Raffaele Pugliese
INTRODUCTION: Islets auto-transplantation (IAT) is a well-known procedure that may improve glycemic control after total or completion pancreatectomy compared to insulin therapy alone. CASE REPORT: We herein report our experience in IAT with the case of a sixty years old woman underwent completion pancreatectomy for recurrent pancreatitis. She received IAT by percutaneous trans-hepatic intra-portal injection. The patient recovered well, except for a surgical wound infection that was treated with vacuum therapy...
2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27341355/clinical-chronic-pancreatitis
#18
Walter G Park
PURPOSE OF REVIEW: To summarize observations in clinical chronic pancreatitis in the past year. RECENT FINDINGS: A predisposing genetic mutation was identified in 67% of cases of pediatric chronic pancreatitis. A novel susceptibility gene involving a hybrid allele is associated with idiopathic chronic pancreatitis. ABO blood type B and FUT2 nonsecretor status is associated with asymptomatic hyperlipasemia and chronic pancreatitis. Alcohol consumption impairs cystic fibrosis transmembrane conductance regulator (CFTR) activity leading to decreased bicarbonate secretion and patients with susceptible CFTR mutations can develop clinical pancreatitis...
June 22, 2016: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/27207476/surgical-approaches-to-chronic-pancreatitis-indications-and-imaging-findings
#19
REVIEW
Nima Hafezi-Nejad, Vikesh K Singh, Stephen I Johnson, Martin A Makary, Kenzo Hirose, Elliot K Fishman, Atif Zaheer
Chronic pancreatitis (CP) is an irreversible, inflammatory process characterized by progressive fibrosis of the pancreas that can result in abdominal pain, exocrine insufficiency, and diabetes. Inadequate pain relief using medical and/or endoscopic therapies is an indication for surgery. The surgical management of CP is centered around three main operations including pancreaticoduodenectomy (PD), duodenum-preserving pancreatic head resection (DPPHR) and drainage procedures, and total pancreatectomy with islet autotransplantation (TPIAT)...
October 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27137483/metastatic-pancreatic-adenocarcinoma-after-total-pancreatectomy-islet-autotransplantation-for-chronic-pancreatitis
#20
S Muratore, X Zeng, M Korc, S McElyea, J Wilhelm, M Bellin, G Beilman
Total pancreatectomy with islet autotransplantation (TPIAT) is being used increasingly as a definitive treatment for chronic pancreatitis. Patients with chronic pancreatitis have an elevated risk of pancreatic cancer, which can also masquerade as acute or chronic pancreatitis, making the diagnosis challenging. We describe here the first case of pancreatic ductal adenocarcinoma developing in the liver of a patient after TPIAT for presumed benign chronic pancreatitis. Retrospective analysis of the patient's preoperative serum revealed normal carbohydrate antigen 19-9 and carcinoembryonic antigen levels but elevated levels of microRNAs -10b, -30c, and -106b compared with controls...
September 2016: American Journal of Transplantation
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