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https://www.readbyqxmd.com/read/27903836/sericin-ameliorated-dysmorphic-mitochondria-in-high-cholesterol-diet-streptozotocin-rat-by-antioxidative-property
#1
Sumate Ampawong, Duangnate Isarangkul, Pornanong Aramwit
Sericin has been implicated in lower cholesterolemic effect due to its properties with several mechanisms. Mitochondria are one of the most important targets to be affected in high blood cholesterol and glucose conditions. The protective role of sericin on mitochondria remains doubtful. To examine this role, electron microscopic, histopathologic, immunohistochemical, and biochemical studies were performed in a high-cholesterol diet/streptozotocin rat model. The results demonstrated that sericin reduced blood cholesterol without hypoglycemic effect...
November 29, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27896656/pancreatitis-after-pancreatoduodenectomy-predicts-clinically-relevant-postoperative-pancreatic-fistula
#2
C M Kühlbrey, N Samiei, O Sick, F Makowiec, U T Hopt, U A Wittel
BACKGROUND: Morbidity after pancreas resection is still high with postoperative pancreatic fistulas (POPF) being the most frequent complication. However, exocrine insufficiency seems to protect from POPF. In clinical practice, patients showing increased postoperative systemic amylase concentrations appear to frequently develop POPF. We therefore retrospectively examined the occurrence of systemic amylase increase after pancreas resections and its association with the clinical course. PATIENTS AND METHODS: Perioperative data from 739 consecutive pancreas resections were assessed in a prospectively maintained SPSS database...
November 28, 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/27894759/pancreaticoduodenectomy-for-pediatric-and-adolescent-pancreatic-malignancy-a-single-center-retrospective-analysis
#3
Erika B Lindholm, Abdulaziz K Alkattan, Sara J Abramson, Anita P Price, Todd E Heaton, Vinod P Balachandran, Michael P La Quaglia
PURPOSE: While pancreaticoduodenectomy (PD) has been extensively studied in adults, there are few data pertaining specifically to pediatric patients. We retrospectively analyzed PD-associated morbidity and mortality in pediatric patients. METHODS: Our analytic cohort included all consecutive patients ≤18years of age treated at our institution from 1993 to 2015 who underwent PD. Patient data (demographics, disease characteristics, surgical and adjuvant treatment, length of hospital stay, and postoperative course) were extracted from the medical records...
November 16, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27892540/pancreatic-mesenchyme-regulates-islet-cellular-composition-in-a-patched-hedgehog-dependent-manner
#4
Daniel Hibsher, Alona Epshtein, Nufar Oren, Limor Landsman
Pancreas development requires restrained Hedgehog (Hh) signaling activation. While deregulated Hh signaling in the pancreatic mesenchyme has been long suggested to be detrimental for proper organogenesis, this association was not directly shown. Here, we analyzed the contribution of mesenchymal Hh signaling to pancreas development. To increase Hh signaling in the pancreatic mesenchyme of mouse embryos, we deleted Patched1 (Ptch1) in these cells. Our findings indicate that deregulated Hh signaling in mesenchymal cells was sufficient to impair pancreas development, affecting both endocrine and exocrine cells...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27884612/enucleation-a-treatment-alternative-for-branch-duct-intraductal-papillary-mucinous-neoplasms
#5
Joerg Kaiser, Stefan Fritz, Miriam Klauss, Frank Bergmann, Ulf Hinz, Oliver Strobel, Lutz Schneider, Markus W Büchler, Thilo Hackert
BACKGROUND: Small, asymptomatic, branch-duct intraductal papillary mucinous neoplasms of the pancreas are often kept under surveillance despite their malignant potential. The management of branch-duct intraductal papillary mucinous neoplasm is controversial with regard to indications and extent of any operative intervention. The present study aimed to evaluate enucleation as an alternative operative approach for branch-duct intraductal papillary mucinous neoplasms to exclude and prevent malignancy...
November 21, 2016: Surgery
https://www.readbyqxmd.com/read/27866884/microrna-biomarkers-of-pancreatic-injury-in-a-canine-model
#6
Rodney Rouse, Barry Rosenzweig, Katie Shea, Alan Knapton, Sharron Stewart, Lin Xu, Ashok Chockalingam, Leah Zadrozny, Karol Thompson
Pancreas-enriched microRNAs have been experimentally investigated in rodents as candidate serum biomarkers of pancreatic injury with several different acute pancreatic injury models. In the present study, temporal and magnitude responses of exocrine pancreas-enriched miR-216a, miR-216b, and miR-217 and endocrine-enriched miR-375 and miR-148a were measured by droplet digital PCR in serum in a caerulein model of pancreatic injury in the dog. All 5 microRNAs followed a similar time course that mirrored the responses of the conventional serum pancreatic injury biomarkers, amylase and lipase...
November 17, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27865459/molecular-pathogenesis-of-pancreatic-cancer
#7
T J Grant, K Hua, A Singh
Pancreatic cancers arise predominantly from ductal epithelial cells of the exocrine pancreas and are of the ductal adenocarcinoma histological subtype (PDAC). PDAC is an aggressive disease associated with a poor clinical prognosis, weakly effective therapeutic options, and a lack of early detection methods. Furthermore, the genetic and phenotypic heterogeneity of PDAC complicates efforts to identify universally efficacious therapies. PDACs commonly harbor activating mutations in the KRAS oncogene, which is a potent driver of tumor initiation and maintenance...
2016: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/27861351/small-amounts-of-tissue-preserve-pancreatic-function-long-term-follow-up-study-of-middle-segment-preserving-pancreatectomy
#8
Zipeng Lu, Jie Yin, Jishu Wei, Cuncai Dai, Junli Wu, Wentao Gao, Qing Xu, Hao Dai, Qiang Li, Feng Guo, Jianmin Chen, Chunhua Xi, Pengfei Wu, Kai Zhang, Kuirong Jiang, Yi Miao
Middle-segment preserving pancreatectomy (MPP) is a novel procedure for treating multifocal lesions of the pancreas while preserving pancreatic function. However, long-term pancreatic function after this procedure remains unclear.The aims of this current study are to investigate short- and long-term outcomes, especially long-term pancreatic endocrine function, after MPP.From September 2011 to December 2015, 7 patients underwent MPP in our institution, and 5 cases with long-term outcomes were further analyzed in a retrospective manner...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27857025/efficacy-of-chemotherapy-in-patients-with-unresectable-or-metastatic-pancreatic-acinar-cell-carcinoma-potentially-improved-efficacy-with-oxaliplatin-containing-regimen
#9
Changhoon Yoo, Bum Jun Kim, Kyu-Pyo Kim, Jae-Lyun Lee, Tae Won Kim, Baek-Yeol Ryoo, Heung-Moon Chang
Purpose: Pancreatic acinar cell carcinoma (ACC) is a rare cancer of the exocrine pancreas. Because of its rare incidence, the efficacy of chemotherapy in this patient population has been largely unknown. Therefore, we retrospectively analyzed the outcomes of patients with advanced pancreatic ACC who received chemotherapy. Materials and Methods: Between January 1997 and March 2015, 15 patients with unresectable or metastatic pancreatic ACC who received systemic chemotherapy were identified in Asan Medical Center, Korea...
November 9, 2016: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/27855231/association-of-newly-diagnosed-type-1-diabetes-and-autoimmune-pancreatitis
#10
Laila Ennazk, Ghizlane El Mghari, Nawal El Ansari
: Autoimmune pancreatitis is a new nosological entity in which a lymphocytic infiltration of the exocrine pancreas is involved. The concomitant onset of autoimmune pancreatitis and type 1 diabetes has been recently described suggesting a unique immune disturbance that compromises the pancreatic endocrine and exocrine functions. We report a case of type1 diabetes onset associated with an autoimmune pancreatitis in a young patient who seemed to present a type 2 autoimmune polyglandular syndrome...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27846886/antidiabetic-and-hypolipidemic-activities-of-hydroethanolic-root-extract-of-uvaria-chamae-in-streptozotocin-induced-diabetic-albino-rats
#11
Jonathan Emeka Emordi, Esther Oluwatoyin Agbaje, Ibrahim Adekunle Oreagba, Osede Ignis Iribhogbe
BACKGROUND: Diabetes mellitus is a metabolic disorder of multiple aetiology characterised by hyperglycemia resulting from defects in insulin secretion, insulin action or both. It is a global epidemic ravaging both developed and developing countries. The situation will worsen if nothing is done urgently. In fact, the need to identify natural products with antidiabetic potentials is of great importance as supported by several research efforts all over the world, in search of antidiabetic plant based products that are safe and efficacious...
November 15, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27846135/the-vascular-microarchitecture-of-the-human-fetal-pancreas-a-corrosion-casting-and-scanning-electron-microscopy-study
#12
Janusz Gorczyca, Krzysztof A Tomaszewski, Brandon Michael Henry, Przemysław Andrzej Pękala, Artur Pasternak, Ewa Mizia, Jerzy A Walocha
OBJECTIVES: Detailed knowledge on the development of the pancreas is required to understand the variability in its blood supply. The aim of our study was to use the corrosion casting method combined with scanning electron microscopy to study the organization of the pancreatic microcirculation in human fetuses. METHODS: The study was conducted on 28 human fetuses aged 18 to 25 gestational weeks. The fetal vasculature was appropriately prepared and then perfused with a low-viscosity Mercox CL-2R resin...
November 11, 2016: Pancreas
https://www.readbyqxmd.com/read/27843954/continuous-quadrupole-magnetic-separation-of-islets-during-digestion-improves-purified-porcine-islet-viability
#13
Bradley P Weegman, Venkata Sunil Kumar Sajja, Thomas M Suszynski, Michael D Rizzari, William E Scott Iii, Jennifer P Kitzmann, Kate R Mueller, Thomas R Hanley, David J Kennedy, Paul W Todd, Appakalai N Balamurugan, Bernhard J Hering, Klearchos K Papas
Islet transplantation (ITx) is an emerging and promising therapy for patients with uncontrolled type 1 diabetes. The islet isolation and purification processes require exposure to extended cold ischemia, warm-enzymatic digestion, mechanical agitation, and use of damaging chemicals for density gradient separation (DG), all of which reduce viable islet yield. In this paper, we describe initial proof-of-concept studies exploring quadrupole magnetic separation (QMS) of islets as an alternative to DG to reduce exposure to these harsh conditions...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27836003/adult-human-pancreas-derived-cells-expressing-stage-specific-embryonic-antigen-4-differentiate-into-sox9-expressing-and-ngn3-expressing-pancreatic-ducts-in-vivo
#14
Song Lee, Chan Mi Lee, Song Cheol Kim
BACKGROUND: Tissue-specific stem/progenitor cells are found in various adult tissues and may have the capacity for lineage-specific differentiation, facilitating applications in autologous transplantation. Stage-specific embryonic antigen 4 (SSEA-4), an early embryonic glycolipid antigen, is expressed in cells derived from adult human pancreas exocrine tissue. Here, we examined the characteristics and lineage-specific differentiation capacity of SSEA-4(+) cells. METHODS: Human adult partial pancreas tissues were obtained from different donors and cultured in vitro...
November 11, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27822608/expression-of-anoctamins-in-retinal-pigment-epithelium-rpe
#15
Rainer Schreiber, Karl Kunzelmann
The anoctamin (ANO, TMEM16) family of Ca(2+)-activated Cl(-) channels consists of ten members with different cellular functions (ANO1-10). ANO1 is a Ca(2+)-activated Cl(-) channel in secretory epithelial cells of exocrine pancreas, salivary glands, or enterocytes. Expression of ANO1 also promotes cell proliferation and migration of tumor cells. ANO6 is essential for Ca(2+)-dependent scrambling of membrane phospholipids in platelets, red blood cells, and lymphocytes. ANO10 modulates Ca(2+) signals in macrophages and has a role in cerebellar ataxia and other neurological disorders...
November 7, 2016: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27813705/increased-proliferation-of-the-pancreatic-duct-gland-compartment-in-type-1-diabetes
#16
Abu Saleh Md Moin, Peter C Butler, Alexandra E Butler
CONTEXT: Pancreatic duct glands (PDGs) have been proposed as a source of regeneration in response to exocrine pancreas injury, and thus may serve as an organ stem cell niche. There is evidence to suggest ongoing beta-cell formation in longstanding type 1 diabetes (T1D), but the source is unknown. OBJECTIVE: To investigate the pancreatic duct gland (PDG) compartment of the pancreas in humans with T1D for evidence of an active regenerative signature (presence of progenitor cells and increased proliferation) and, in particular, as a potential source of beta-cells...
November 4, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27811505/early-and-late-complications-after-surgery-for-men1-related-nonfunctioning-pancreatic-neuroendocrine-tumors
#17
Sjoerd Nell, Inne H M Borel Rinkes, Helena M Verkooijen, Bert A Bonsing, Casper H van Eijck, Harry van Goor, Ruben H J de Kleine, Geert Kazemier, Elisabeth J Nieveen van Dijkum, Cornelis H C Dejong, Gerlof D Valk, Menno R Vriens
OBJECTIVE: To estimate short and long-term morbidity after pancreatic surgery for multiple endocrine neoplasia type 1 (MEN1)-related nonfunctioning pancreatic neuroendocrine tumors (NF-pNETs). BACKGROUND: Fifty percent of the MEN1 patients harbor multiple NF-pNETs. The decision to proceed to NF-pNET surgery is a balance between the risk of disease progression versus the risk of surgery-related morbidity. Currently, there are insufficient data on the surgical complications after MEN1 NF-pNET surgery...
November 1, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27810111/embryonic-exposures-to-perfluorooctanesulfonic-acid-pfos-disrupt-pancreatic-organogenesis-in-the-zebrafish-danio-rerio
#18
Karilyn E Sant, Haydee M Jacobs, Katrina A Borofski, Jennifer B Moss, Alicia R Timme-Laragy
Perfluorooctanesulfonic acid (PFOS) is a ubiquitous environmental contaminant, previously utilized as a non-stick application for consumer products and firefighting foam. It can cross the placenta, and has been repeatedly associated with increased risk for diabetes in epidemiological studies. Here, we sought to establish the hazard posed by embryonic PFOS exposures on the developing pancreas in a model vertebrate embryo, and develop criteria for an adverse outcome pathway (AOP) framework to study the developmental origins of metabolic dysfunction...
October 31, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27798657/the-met-receptor-tyrosine-kinase-confers-repair-of-murine-pancreatic-acinar-cells-following-acute-and-chronic-injury
#19
Ivana Gaziova, Daniel Jackson, Paul J Boor, Dwayne Carter, Zobeida Cruz-Monserrate, Cornelis J Elferink, Aditya D Joshi, Bhupendra Kaphalia, Craig D Logsdon, Karen Pereira de Castro, Lynn Soong, Xinrong Tao, Suimin Qiu, Lisa A Elferink
Acinar cells represent the primary target in necroinflammatory diseases of the pancreas, including pancreatitis. The signaling pathways guiding acinar cell repair and regeneration following injury remain poorly understood. The purpose of this study was to determine the importance of Hepatocyte Growth Factor Receptor/MET signaling as an intrinsic repair mechanism for acinar cells following acute damage and chronic alcohol-associated injury. Here, we generated mice with targeted deletion of MET in adult acinar cells (MET-/-)...
2016: PloS One
https://www.readbyqxmd.com/read/27796887/telocytes-in-exocrine-glands-stroma
#20
Mihnea Ioan Nicolescu
Stroma is viewed as the supportive framework of a predominant epithelial organ, comprising mostly of connective tissue, blood vessels and nerves. Since the discovery of telocytes one decade ago (Popescu and Faussone-Pellegrini J Cell Mol Med 2010;14(4):729-40), their presence was proven in several exocrine gland stromata, including major and minor salivary glands, mammary glands as well as exocrine pancreas.Telocytes have been found in a close connection with acinar and ductal structures but also with their stromal neighbours - nerves, blood vessels or other connective elements, either cells or collagen fibres...
2016: Advances in Experimental Medicine and Biology
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