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Autoimmune pancreatitis

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https://www.readbyqxmd.com/read/28422840/case-report-a-female-case-of-isolated-igg4-related-sclerosing-cholangitis-mimicking-cholangiocarcinoma
#1
Jianchun Xiao, Guanqiao Li, Gang Yang, Congwei Jia, Binglu Li
RATIONALE: IgG4-related disease is a newly recognized fibroinflammatory disorder, characterized by tumefactive lesions, storiform fibrosis and IgG4-positive plasma cells infiltration. IgG4-related sclerosing cholangitis (IgG4-SC) is the most common extrapancreatic manifestation of IgG4-related disease, but it is frequently associated with autoimmune pancreatitis(AIP). Only few case was reported to be diagnosed with IgG4-SC in the absence of AIP, with a striking male preponderance. Here we report a female case of isolated IgG4 related sclerosing cholangitis mimicking cholangiocarcinoma...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28420714/pancreatic-islet-inflammation-an-emerging-role-for-chemokines
#2
J Jason Collier, Tim E Sparer, Michael D Karlstad, Susan J Burke
Both Type 1 and Type 2 diabetes exhibit features of inflammation associated with alterations in pancreatic islet function and mass. These immunological disruptions, if unresolved, contribute to the overall pathogenesis of disease onset. This review presents the emerging role of pancreatic islet chemokine production as a critical factor regulating immune cell entry into pancreatic tissue as well as an important facilitator of changes in tissue resident leukocyte activity. Signaling through two specific chemokine receptors (i...
April 18, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28415732/additional-k-ras-mutation-analysis-and-plectin-1-staining-improve-the-diagnostic-accuracy-of-pancreatic-solid-mass-in-eus-guided-fine-needle-aspiration
#3
Joo Kyung Park, Woo Hyun Paik, Byeong Jun Song, Ji Kon Ryu, Min A Kim, Jin Myung Park, Sang Hyub Lee, Yong-Tae Kim
BACKGROUND: One of the major genetic alterations in pancreatic ductal adenocarcinoma (PDAC) is the point mutation of K-ras gene. Plectin-1 was also recently identified as PDAC specific biomarker. The aim of this study was to investigate the improvement of diagnostic accuracy of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) by using additional K-ras mutation analysis and Plectin-1 staining in patients with pancreatic mass. METHODS: A total of 85 study patients with pancreatic mass underwent EUS-FNA and the final diagnoses were as follows; PDACs: 70 patients, pancreas neuroendocrine tumor: 4, metastasis to pancreas: 5, autoimmune pancreatitis: 3, chronic pancreatitis: 1, tuberculous lymphadenitis: 1, pseudocyst: 1...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414668/autoimmune-diabetes-presented-with-diabetic-ketoacidosis-induced-by-immunotherapy-in-an-adult-with-melanoma
#4
A A Alzenaidi, J Dendy, L Rejjal
INTRODUCTION: Immunotherapy has been approved for treatment of melanoma. Autoimmune endocrinopathies have been reported in trials involving immunotherapy but autoimmune diabetes has not been definitively linked to them. Here we describe a case of autoimmune diabetes presenting with DKA after receiving combined immunotherapy with anti-CTLA4 and anti-PD1 monoclonal antibodies. CASE: A 47year old gentleman with metastatic melanoma presented to our institution with confusion, abdominal pain and decreased oral intake...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28412148/no-evidence-to-support-a-role-for-helicobacter-pylori-infection-and-plasminogen-binding-protein-in-autoimmune-pancreatitis-and-igg4-related-disease-in-a-uk-cohort
#5
Emma L Culver, Wouter L Smit, Caroline Evans, Ross Sadler, Tamsin Cargill, Mateusz Makuch, Lai-Mun Wang, Berne Ferry, Paul Klenerman, Eleanor Barnes
BACKGROUND AND OBJECTIVES: Helicobacter pylori (H.pylori) plasminogen binding protein (PBP) has been proposed as an antigen triggering autoimmune pancreatitis (AIP), the pancreatic manifestation of IgG4-related disease (IgG4-RD). We investigated exposure to H. pylori infection, cytokine response and immunological memory to H. pylori PBP in a prospective IgG4-RD cohort in the UK. METHODS: Clinical and endoscopic evidence of peptic ulceration, serological H. pylori exposure and serum IgG4 levels were obtained in 55 IgG4-RD patients and 52 disease controls (DC) with autoimmune or inflammatory conditions with an elevated serum IgG4...
April 5, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28409377/laparoscopic-radical-antegrade-modular-pancreatosplenectomy-for-left-sided-pancreatic-cancer-using-the-ligament-of-treitz-approach
#6
Yusuke Ome, Kazuki Hashida, Mitsuru Yokota, Yoshio Nagahisa, Okabe Michio, Kazuyuki Kawamoto
BACKGROUND: Laparoscopic distal pancreatectomy (Lap-DP) for benign lesions or those with low malignant potential has been proven safe and effective, and its performance is now widespread [1-3]. Lap-DP for left-sided pancreatic cancer (PC) is also being increasingly performed. According to some reports, Lap-DP has superior short-term outcomes (blood loss, postoperative hospital stay) and comparable oncological outcomes and overall survival with those of open distal pancreatectomy (Op-DP) [4-6]...
April 13, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28405146/simultaneous-occurrence-of-autoimmune-pancreatitis-and-pancreatic-cancer-in-patients-resected-for-focal-pancreatic-mass
#7
Peter Macinga, Adela Pulkertova, Lukas Bajer, Jana Maluskova, Martin Oliverius, Martin Smejkal, Maria Heczkova, Julius Spicak, Tomas Hucl
AIM: To assess the occurrence of autoimmune pancreatitis (AIP) in pancreatic resections performed for focal pancreatic enlargement. METHODS: We performed a retrospective analysis of medical records of all patients who underwent pancreatic resection for a focal pancreatic enlargement at our tertiary center from January 2000 to July 2013. The indication for surgery was suspicion of a tumor based on clinical presentation, imaging findings and laboratory evaluations...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28402852/an-activating-stat3-mutation-causes-neonatal-diabetes-through-premature-induction-of-pancreatic-differentiation
#8
Jonna Saarimäki-Vire, Diego Balboa, Mark A Russell, Juha Saarikettu, Matias Kinnunen, Salla Keskitalo, Amrinder Malhi, Cristina Valensisi, Colin Andrus, Solja Eurola, Heli Grym, Jarkko Ustinov, Kirmo Wartiovaara, R David Hawkins, Olli Silvennoinen, Markku Varjosalo, Noel G Morgan, Timo Otonkoski
Activating germline mutations in STAT3 were recently identified as a cause of neonatal diabetes mellitus associated with beta-cell autoimmunity. We have investigated the effect of an activating mutation, STAT3(K392R), on pancreatic development using induced pluripotent stem cells (iPSCs) derived from a patient with neonatal diabetes and pancreatic hypoplasia. Early pancreatic endoderm differentiated similarly from STAT3(K392R) and healthy-control cells, but in later stages, NEUROG3 expression was upregulated prematurely in STAT3(K392R) cells together with insulin (INS) and glucagon (GCG)...
April 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28399987/igg4-related-autoimmune-pancreatitis-mimicking-acute-pancreatitis-a-case-report
#9
Chen Xing, Wang Lihua, Zhang Lixian, Zhao Caihong
No abstract text is available yet for this article.
April 10, 2017: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28380378/targeting-abl-ire1%C3%AE-signaling-spares-er-stressed-pancreatic-%C3%AE-cells-to-reverse-autoimmune-diabetes
#10
Shuhei Morita, S Armando Villalta, Hannah C Feldman, Ames C Register, Wendy Rosenthal, Ingeborg T Hoffmann-Petersen, Morvarid Mehdizadeh, Rajarshi Ghosh, Likun Wang, Kevin Colon-Negron, Rosa Meza-Acevedo, Bradley J Backes, Dustin J Maly, Jeffrey A Bluestone, Feroz R Papa
In cells experiencing unrelieved endoplasmic reticulum (ER) stress, the ER transmembrane kinase/endoribonuclease (RNase)-IRE1α-endonucleolytically degrades ER-localized mRNAs to promote apoptosis. Here we find that the ABL family of tyrosine kinases rheostatically enhances IRE1α's enzymatic activities, thereby potentiating ER stress-induced apoptosis. During ER stress, cytosolic ABL kinases localize to the ER membrane, where they bind, scaffold, and hyperactivate IRE1α's RNase. Imatinib-an anti-cancer tyrosine kinase inhibitor-antagonizes the ABL-IRE1α interaction, blunts IRE1α RNase hyperactivity, reduces pancreatic β cell apoptosis, and reverses type 1 diabetes (T1D) in the non-obese diabetic (NOD) mouse model...
April 4, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28380011/increased-inflammation-is-associated-with-islet-autoimmunity-and-type-1-diabetes-in-the-diabetes-autoimmunity-study-in-the-young-daisy
#11
Kathleen Waugh, Janet Snell-Bergeon, Aaron Michels, Fran Dong, Andrea K Steck, Brigitte I Frohnert, Jill M Norris, Marian Rewers
BACKGROUND: Type 1 diabetes (TID) is characterized by a loss of pancreatic islet beta cell function resulting in loss of insulin production. Genetic and environmental factors may trigger immune responses targeting beta cells thus generating islet antibodies (IA). Immune response pathways involve a cascade of events, initiated by cytokines and chemokines, producing inflammation which can result in tissue damage. METHODS: A nested case-control study was performed to identify temporal changes in cytokine levels in 75 DAISY subjects: 25 diagnosed T1D, 25 persistent IA, and 25 controls...
2017: PloS One
https://www.readbyqxmd.com/read/28378202/exercise-training-but-not-curcumin-supplementation-decreases-immune-cell-infiltration-in-the-pancreatic-islets-of-a-genetically-susceptible-model-of-type-1-diabetes
#12
Leandro Kansuke Oharomari, Camila de Moraes, Anderson Marliere Navarro
BACKGROUND: The main mechanism involved in the pathogenesis of autoimmunity is an uncontrolled inflammatory response against self-antigens. Therefore, anti-inflammatory factors, such as the intake of bioactive compounds and a physically active lifestyle, may decrease or cease the development of autoimmune diseases. Type 1 diabetes (T1D) is an autoimmune disease characterized by pancreatic β cell destruction. The non-obese diabetic (NOD) mouse is a model of spontaneous T1D and is the model most similar to human disease...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28375156/%C3%AF-3-polyunsaturated-fatty-acids-ameliorate-type-1-diabetes-and-autoimmunity
#13
Xinyun Bi, Fanghong Li, Shanshan Liu, Yan Jin, Xin Zhang, Tao Yang, Yifan Dai, Xiaoxi Li, Allan Zijian Zhao
Despite the benefit of insulin, blockade of autoimmune attack and regeneration of pancreatic islets are ultimate goals for the complete cure of type 1 diabetes (T1D). Long-term consumption of ω-3 polyunsaturated fatty acids (PUFAs) is known to suppress inflammatory processes, making these fatty acids candidates for the prevention and amelioration of autoimmune diseases. Here, we explored the preventative and therapeutic effects of ω-3 PUFAs on T1D. In NOD mice, dietary intervention with ω-3 PUFAs sharply reduced the incidence of T1D, modulated the differentiation of Th cells and Tregs, and decreased the levels of IFN-γ, IL-17, IL-6, and TNF-α...
April 4, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28374818/autoimmune-pancreatitis-in-children-characteristic-features-diagnosis-and-management
#14
Isabelle Scheers, Joseph J Palermo, Steven Freedman, Michael Wilschanski, Uzma Shah, Maisam Abu-El-Haija, Bradley Barth, Douglas S Fishman, Cheryl Gariepy, Matthew J Giefer, Melvin B Heyman, Ryan W Himes, Sohail Z Husain, Tom K Lin, Quin Liu, Mark Lowe, Maria Mascarenhas, Veronique Morinville, Chee Y Ooi, Emily R Perito, David A Piccoli, John F Pohl, Sarah J Schwarzenberg, David Troendle, Steven Werlin, Bridget Zimmerman, Aliye Uc, Tanja Gonska
OBJECTIVES: Autoimmune pancreatitis (AIP) is an increasingly recognized disease entity, but data in children are limited. AIP presentation and outcome in children might differ from the adult experience. We aim to determine the characteristic features of AIP in children. METHODS: Data about clinical symptoms, imaging, histology, and treatment were collected using two sources: (i) a systematic literature search and (ii) the INSPPIRE database, the largest international multicenter study of pancreatitis in children and the Cliniques Universitaires St-Luc (CUSL) registry...
April 4, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28373582/chronic-fibro-inflammatory-responses-in-autoimmune-pancreatitis-depend-on-ifn-%C3%AE-and-il-33-produced-by-plasmacytoid-dendritic-cells
#15
Tomohiro Watanabe, Kouhei Yamashita, Yasuyuki Arai, Kosuke Minaga, Ken Kamata, Tomoyuki Nagai, Yoriaki Komeda, Mamoru Takenaka, Satoru Hagiwara, Hiroshi Ida, Toshiharu Sakurai, Naoshi Nishida, Warren Strober, Masatoshi Kudo
In previous studies, we found that human IgG4-related autoimmune pancreatitis (AIP) and murine AIP are driven by activation of plasmacytoid dendritic cells (pDCs) producing IFN-α. In the present studies we examined additional roles of pDC-related mechanisms in AIP pathogenesis, particularly those responsible for induction of fibrosis. We found that in murine AIP (MRL/Mp mice treated with polyinosinic-polycytidylic acid) not only the pancreatic infiltration of immune cells but also the development of fibrosis were markedly reduced by the depletion of pDCs or blockade of type I IFN signaling; moreover, such treatment was accompanied by a marked reduction of pancreatic expression of IL-33...
April 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28369140/serological-characteristics-of-autoimmune-pancreatitis-and-its-differential-diagnosis-from-pancreatic-cancer-by-using-a-combination-of-carbohydrate-antigen-19-9-globulin-eosinophils-and-hemoglobin
#16
Tianlian Yan, Yini Ke, Yi Chen, Chengfu Xu, Chaohui Yu, Youming Li
Autoimmune pancreatitis (AIP) is a special type of chronic pancreatitis, which may be misdiagnosed as pancreatic carcinoma. This study aims to verify new biomarkers for AIP and propose a serological pattern to differentiate AIP from pancreatic adenocarcinoma with routinely performed tests. In this study, data of serum samples were collected and compared between 25 patients with AIP and 100 patients with pancreatic carcinoma. Receiver operating characteristic analysis and logistic regression was performed to evaluate the diagnostic effect of serum parameters in differentiating AIP from pancreatic carcinoma alone or in combination...
2017: PloS One
https://www.readbyqxmd.com/read/28368239/apoptosis-of-pancreatic-%C3%AE-cells-in-type-1-diabetes
#17
REVIEW
Tatsuo Tomita
Type 1 diabetes mellitus (T1DM) results from autoimmune destruction of pancreatic β-cells after an asymptomatic period over years. Insulitis activates antigen presenting cells, which trigger activating CD4+ helper-T cells, releasing chemokines/cytokines. Cytokines activate CD8+ cytotoxic -T cells, which lead to β-cell destruction. Apoptosis pathway consists of extrinsic (receptor-mediated) and intrinsic (mitochondria-driven) pathway. Extrinsic pathway includes Fas pathway to CD4+-CD8+ interaction, whereas intrinsic pathway includes mitochondria-driven pathway at a balance between pro-apoptotic B-cell lymphoma (Bcl) 2 and Bcl-xL and anti-apoptotic Bad, Bid, and Bik proteins...
April 3, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28365915/autoimmune-pancreatitis
#18
REVIEW
Shounak Majumder, Naoki Takahashi, Suresh T Chari
Autoimmune pancreatitis (AIP) is a chronic fibroinflammatory disease of the pancreas that belongs to the spectrum of immunoglobulin G-subclass4-related diseases (IgG4-RD) and typically presents with obstructive jaundice. Idiopathic duct-centric pancreatitis (IDCP) is a closely related but distinct disease that mimics AIP radiologically but manifests clinically most commonly as recurrent acute pancreatitis in young individuals with concurrent inflammatory bowel disease. IgG4 levels are often elevated in AIP and normal in IDCP...
April 1, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28365128/diagnosing-autoimmune-pancreatitis-with-the-unifying-autoimmune-pancreatitis-criteria
#19
Alexander Schneider, Henrik Michaely, Felix Rückert, Christel Weiss, Philipp Ströbel, Sebastian Belle, Michael Hirth, Torsten J Wilhelm, Stephan L Haas, Ralf Jesenofsky, Stefan Schönberg, Alexander Marx, Manfred V Singer, Matthias P Ebert, Roland H Pfützer, J Matthias Löhr
BACKGROUND/OBJECTIVES: We had developed the Unifying-Autoimmune-Pancreatitis-Criteria (U-AIP) to diagnose autoimmune pancreatitis (AiP) within the M-ANNHEIM classification of chronic pancreatitis. In 2011, International-Consensus-Diagnostic-Criteria (ICDC) to diagnose AiP have been published. We had applied the U-AIP long before the ICDC were available. The aims of the study were, first, to describe patients with AiP diagnosed by the U-AIP; second, to compare diagnostic accuracies of the U-AIP and other diagnostic systems; third, to evaluate the clinical applicability of the U-AIP...
March 18, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28363905/cd137-plays-both-pathogenic-and-protective-roles-in-type-1-diabetes-development-in-nod-mice
#20
Matthew H Forsberg, Ashley E Ciecko, Kyle J Bednar, Arata Itoh, Kritika Kachapati, William M Ridgway, Yi-Guang Chen
We previously reported that CD137 (encoded by Tnfrsf9) deficiency suppressed type 1 diabetes (T1D) progression in NOD mice. We also demonstrated that soluble CD137 produced by regulatory T cells contributed to their autoimmune-suppressive function in this model. These results suggest that CD137 can either promote or suppress T1D development in NOD mice depending on where it is expressed. In this study, we show that NOD.Tnfrsf9(-/-) CD8 T cells had significantly reduced diabetogenic capacity, whereas absence of CD137 in non-T and non-B cells had a limited impact on T1D progression...
March 31, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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