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https://www.readbyqxmd.com/read/28742858/reduction-of-endoplasmic-reticulum-mitochondria-interactions-in-beta-cells-from-patients-with-type-2-diabetes
#1
Charles Thivolet, Guillaume Vial, Romeo Cassel, Jennifer Rieusset, Anne-Marie Madec
Type 2 diabetes develops when beta cells are not able to fulfill insulin needs. The role of the endoplasmic reticulum-mitochondria junction in coordinating the functions of these two organelles throughout the natural history of type 2 diabetes is determinant and may explain the alterations of insulin biosynthesis. Our goal was to study endoplasmic reticulum and mitochondrial interactions in human beta cells from organ donors with type 2 diabetes. Pancreas samples were obtained via the network for pancreatic organ donors with diabetes (nPOD) based on disease status with 12 subjects with type 2 diabetes and 9 non-diabetic controls...
2017: PloS One
https://www.readbyqxmd.com/read/28742542/clinical-practice-guidelines-for-cryosurgery-of-pancreatic-cancer-a-consensus-statement-from-the-china-cooperative-group-of-cryosurgery-on-pancreatic-cancer-international-society-of-cryosurgery-and-asian-society-of-cryosurgery
#2
Lihua He, Lizhi Niu, Nikolai N Korpan, Sajio Sumida, Yueyong Xiao, Jiaping Li, Barlian Sutedja, Youyong Lu, Jiansheng Zuo, Jianguo Liu, Kecheng Xu
Pancreatic cancer (PC), one of the most lethal malignancies, accounts for 8% to 10% of digestive system cancers, and the incidence is increasing. Surgery, chemotherapy, and radiotherapy have been the main treatment methods but are not very effective. Cryosurgery was first used in 1984 for treatment of locally advanced PC and has since become a considerable treatment for most cases of unresectable PC. During the past decade, cryosurgery has been applied in some hospitals in China, and the newly developed technique of computed tomography- and/or ultrasound-guided percutaneous cryosurgery has shown better results than chemotherapy in cases of unresectable locally advanced PC, with the 1-year survival rate reported to be more than 50%...
July 24, 2017: Pancreas
https://www.readbyqxmd.com/read/28741490/in-vivo-rnai-screening-for-pancreatic-cancer-drivers-piloting-the-wdr5-myc-axis
#3
Günter Schneider, Dieter Saur
Pancreatic ductal adenocarcinoma (PDAC) represents a major global health problem that causes over 200000 deaths each year worldwide. The disease is highly resistant to cytotoxic and targeted therapies and the average survival is less than 12 months. This situation prompted Alessandro Carugo and Giulio Draetta to develop a novel genetic mouse system, termed Patient-Based In Vivo Lethality to Optimize Treatment (PILOT), to perform functional RNAi-based in vivo screens to uncover and target PDAC drivers. In a forward genetic screen focused on epigenetic modifiers, a WDR5-Myc axis that regulates the DNA replication checkpoint was identified and exploited in vivo for therapeutic intervention...
August 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28740913/reirradiation-with-stereotactic-body-radiation-therapy-after-prior-conventional-fractionation-radiation-for-locally-recurrent-pancreatic-adenocarcinoma
#4
Amanda J Koong, Diego A S Toesca, Rie von Eyben, Erqi L Pollom, Daniel T Chang
PURPOSE: Locally recurrent pancreatic cancer after prior radiotherapy is a therapeutic challenge with limited treatment options. This study examines the safety and efficacy of stereotactic body radiation therapy (SBRT) for locally recurrent pancreatic adenocarcinoma after prior conventional fractionation radiotherapy (CRT). METHODS AND MATERIALS: Outcomes from all patients treated with SBRT for locally recurrent pancreatic adenocarcinoma after prior CRT at our institution were reviewed...
January 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28740732/low-molecular-weight-ngf-mimetic-corrects-the-cognitive-deficit-and-depression-like-behavior-in-experimental-diabetes
#5
R U Ostrovskaya, S S Yagubova, T A Gudasheva, S B Seredenin
Based on the comorbidity of diabetes, depression, and dementia and recognizing that a deficiency of the nerve growth factor (NGF) is involved in all of these kinds of pathologies, we studied the effect of the mimetic of dimeric dipeptide NGF loop 4, GK-2, on a model of streptozotocin-induced type 2 diabetes in C57Bl/6 mice. GK-2 [hexamethylenediamide bis-(N-monosuccinyl-glutamyl-lysine)] was synthesized at the V.V. Zakusov Scientific Research Institute of Pharmacology. The study revealed the ability of GK-2 to ameliorate hyperglycemia induced by streptozotocine (STZ 100 mg/kg i...
April 2017: Acta Naturae
https://www.readbyqxmd.com/read/28740482/both-low-blood-glucose-and-insufficient-treatment-confer-risk-of-neurodevelopmental-impairment-in-congenital-hyperinsulinism-a-multinational-cohort-study
#6
Annett Helleskov, Maria Melikyan, Evgenia Globa, Inna Shcherderkina, Fani Poertner, Anna-Maria Larsen, Karen Filipsen, Klaus Brusgaard, Charlotte Dahl Christiansen, Lars Kjaersgaard Hansen, Henrik T Christesen
BACKGROUND/AIMS: Congenital hyperinsulinism (CHI) is a heterogeneous disease most frequently caused by KATP-channel (ABCC8 and KCNJ11) mutations, with neonatal or later onset, variable severity, and with focal or diffuse pancreatic involvement as the two major histological types. CHI confers a high risk of neurological impairment; however, sparsely studied in larger patient series. We assessed the neurodevelopmental outcome in children with CHI at follow-up in a mixed international cohort...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28739291/pancreatic-cancer-screening-still-a-delusion
#7
REVIEW
Pedro Moutinho-Ribeiro, Rosa Coelho, Marc Giovannini, Guilherme Macedo
Pancreatic adenocarcinoma represents the fourth most common cause of cancer mortality and death due to pancreatic cancer (PC) have increased since 2003. Its incidence has also raised about 30% in the past decade and it is expected to become the second cause of cancer mortality by 2020 in the USA. Most PC present with metastatic disease and improvements in treatment outcomes for this group have been disappointing. These observations support the idea that screening to identify patients at an earlier stage might be an important strategy in improving overall PC outcomes...
July 13, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28739282/long-term-risk-of-pancreatic-malignancy-in-patients-with-branch-duct-intraductal-papillary-mucinous-neoplasm-in-a-referral-center
#8
Ilaria Pergolini, Klaus Sahora, Cristina R Ferrone, Vicente Morales-Oyarvide, Brian M Wolpin, Lorelei A Mucci, William R Brugge, Mari Mino-Kenudson, Manuel Patino, Dushyant V Sahani, Andrew L Warshaw, Keith D Lillemoe, Carlos Fernández-Del Castillo
BACKGROUND & AIMS: Little is known about development of branch duct intraductal papillary mucinous neoplasms (BD-IPMNs). We evaluated long-term outcomes of a large cohort of patients with BD-IPMNs to determine risk of malignancy and define a subset of low-risk BD-IPMNs. METHODS: We performed a retrospective analysis of data from 577 patients with suspected or presumed BD-IPMN under surveillance at the Massachusetts General Hospital. Patients underwent cross-sectional imaging analysis at 3 months or later after their initial diagnosis...
July 21, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28739210/bile-salt-stimulated-lipase-inhibition-by-phospholipids-and-relief-by-phospholipase-a2
#9
Elena Venuti, Dmitry Shishmarev, Philip W Kuchel, Shoma Dutt, Caron S Blumenthal, Kevin J Gaskin
INTRODUCTION: Bile salt stimulated lipase (BSSL; Enzyme Commission (EC) number 3.1.1.13) has been a candidate triglyceridase for improving enzyme therapy for pancreatic insufficiency; however, its efficacy is near absent. We hypothesise that similarly to pancreatic lipase, BSSL is inhibited by phospholipids and this inhibition is relieved by Phospholipase A2 (PLA2; EC 3.1.1.4), and the present study was undertaken to explore this possibility. MATERIALS AND METHODS: Synthetic emulsions of triglyceride and phosphatidylcholine (PC) or lysophosphatidylcholine (LPC)/bile salt mixed micelles were used as a model of intestinal digestion-media...
July 21, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28739154/prostaglandin-e2-a-pancreatic-fluid-biomarker-of-intraductal-papillary-mucinous-neoplasm-dysplasia
#10
Michele T Yip-Schneider, Rosalie A Carr, Huangbing Wu, C Max Schmidt
BACKGROUND: With the increased frequency of diagnostic imaging, pancreatic cysts are now detected in >3% of American adults. Most of these are intraductal papillary mucinous neoplasm (IPMN) with well-established but variable malignant potential. A biomarker that predicts malignant potential or dysplastic grade would help determine which IPMN require removal or can be safely observed. We previously reported that pancreatic fluid prostaglandin E2 (PGE2) levels may have promise as a predictor of IPMN dysplasia and seek to validate these results in the current study...
July 21, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28738930/pancreatic-lymphangioma-a-diagnostic-and-treatment-dilemma
#11
Laurentia Nodit, Megan Johnson, Keith D Gray, Alan D Grindstaff, Elizabeth Hubbard
No abstract text is available yet for this article.
July 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28738823/metformin-suppresses-cancer-initiation-and-progression-in-genetic-mouse-models-of-pancreatic-cancer
#12
Ke Chen, Weikun Qian, Zhengdong Jiang, Liang Cheng, Jie Li, Liankang Sun, Cancan Zhou, Luping Gao, Meng Lei, Bin Yan, Junyu Cao, Wanxing Duan, Qingyong Ma
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is the fourth leading cause of cancer-associated mortality worldwide with an overall five-year survival rate less than 7%. Accumulating evidence has revealed the cancer preventive and therapeutic effects of metformin, one of the most widely prescribed medications for type 2 diabetes mellitus. However, its role in pancreatic cancer is not fully elucidated. Herein, we aimed to further study the preventive and therapeutic effects of metformin in genetically engineered mouse models of pancreatic cancer...
July 24, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28738680/photothermal-effect-enhanced-cascade-targeting-strategy-for-improved-pancreatic-cancer-therapy-by-gold-nanoshell-mesoporous-silica-nanorod
#13
Ruifang Zhao, Xuexiang Han, Yiye Li, Hai Wang, Tianjiao Ji, Yuliang Zhao, Guangjun Nie
Pancreatic cancer, one of the leading causes of cancer-related mortality, is characterized by desmoplasia and hypovascular cancerous tissue, with a 5-year survival rate of less than 8%. To overcome the severe resistance of pancreatic cancer to conventional therapies, we synthesized gold nanoshell-coated rod-like mesoporous silica (GNRS) nanoparticles which integrated cascade tumor targeting (mediated by photothermal effect and molecular receptor binding) and photothermal treatment-enhanced gemcitabine chemotherapy, under mild near infrared laser irradiation condition...
July 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28738518/teucrium-polium-extract-reverses-symptoms-of-streptozotocin-induced-diabetes-in-rats-via-rebalancing-the-pdx1-and-foxo1-expressions
#14
Parvaneh Sadat Tabatabaie, Razieh Yazdanparast
BACKGROUND AND OBJECTIVE: Teucrium polium Lamiaceae. an antidiabetic traditional medicine was observed to stimulate insulin secretion and β-cell mass restoration in pancreatic of diabetic rats. Bioactive compounds in T. polium such as terpenoids and flavonoids have a wide range of antioxidant properties. Given this background, our research was aimed at probing the effective molecular mechanism of T. polium which in turn protects the pancreatic β-cells of diabetic rats through attenuation of streptozotocin-induced oxidative stress...
July 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28736633/biologics-in-gastrointestinal-and-pancreatic-neuroendocrine-tumors
#15
REVIEW
Iris H Liu, Pamela L Kunz
The development of biologic agents has ushered in a new era of precision medicine, opening the door to new therapeutic options designed to intelligently target cancer cells and their promoting factors, while leaving normal cells relatively unharmed. Biologics for the treatment of neuroendocrine tumors (NETs) have followed in the footsteps of regimens targeting pathways upregulated in other cancers, including the vascular endothelial growth factor (VEGF) and the mammalian target of rapamycin (mTOR). Through a number of clinical trials, the mTOR inhibitor everolimus and the receptor tyrosine kinase (RTK) inhibitor sunitinib were recently approved for NETs...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28736631/shifting-paradigm-of-developing-biologics-for-the-treatment-of-pancreatic-adenocarcinoma
#16
REVIEW
Ying Zeng, Agnieszka A Rucki, Xu Che, Lei Zheng
Pancreatic adenocarcinoma is still widely considered as a deadly disease even though there are substantial therapeutic developments in the past decade. Using combinational chemotherapy regimens, represented by gemcitabine plus nab-paclitaxel and FOLFIRINOX, was able to improve overall survival in patients with advanced disease to a limited extent. It has been a challenge to develop targeted therapies that are focused on the neoplasm cells of pancreatic adenocarcinoma. Recently, targeting the stroma and immune compartments of pancreatic adenocarcinoma has shown promising results...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28736628/predictive-and-prognostic-biomarkers-in-personalized-gastrointestinal-cancer-treatment
#17
REVIEW
Helena Verdaguer, Tamara Saurí, Teresa Macarulla
Biomarkers play an important role in the detection and management of cancer patients. In gastrointestinal cancer, there is increasing interest in their development and validation according to specific tumor type. Prognostic biomarkers enable identification of patients with a more aggressive tumor evolution, while predictive biomarkers permit the identification of patients with a higher probability of responding or not to a specific treatment. Several biomarkers are currently widely employed in gastrointestinal cancers...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28736626/molecular-landscape-and-sub-classification-of-gastrointestinal-cancers-a-review-of-literature
#18
REVIEW
Bita Fakhri, Kian-Huat Lim
The historical approach of diagnosing cancer types based entirely on anatomic origin and histologic features, and the "one-size-fit-all" therapeutic approach, are inadequate in modern cancer treatment. From decades of research we now know that cancer is a highly heterogeneous disease driven by complex genetic or epigenetic alterations. The advent of various high throughput molecular tools has now enabled us to view and sub-classify each cancer type based on their distinct molecular features, in addition to histologic classification, with the promise of individualized treatment strategies tailored towards each specific subtype to improve patient outcomes...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28736585/late-onset-asymptomatic-pancreatic-neuroendocrine-tumor-a-case-report-on-the-phenotypic-expansion-for-men1
#19
Charu Kaiwar, Sarah K Macklin, Jennifer M Gass, Jessica Jackson, Eric W Klee, Stephanie L Hines, John A Stauffer, Paldeep S Atwal
BACKGROUND: Multiple endocrine neoplasia type 1 (MEN1) is a hereditary cancer syndrome associated with several endocrine as well as non-endocrine tumors and is caused by mutations in the MEN1 gene. Primary hyperparathyroidism affects the majority of MEN1 individuals by age 50 years. Additionally, MEN1 mutations trigger familial isolated hyperparathyroidism. We describe a seemingly unaffected 76-year-old female who presented to our Genetics Clinic with a family history of primary hyperparathyroidism and the identification of a pathogenic MEN1 variant...
2017: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/28736430/a-case-of-type-1-autoimmune-pancreatitis-aip-a-form-of-igg4-related-disease-igg4-rd
#20
Mounira El Euch, Souha Hddad, Madiha Mahfoudhi, Hela Maktouf, Fethi Ben Hamida, Fatima Jaziri, Khaoula Ben Abdelghani, Sami Turki, Taïeb Ben Abdallah
BACKGROUND Type 1 autoimmune pancreatitis (AIP), also known as lymphoplasmacytic sclerosing pancreatitis (LPSP), is a rare cause of chronic pancreatitis, characterized by a fibro-inflammatory process. However, patients with AIP may have a good response to corticosteroid therapy. We describe a Tunisian patient with AIP that was confirmed to be an IgG4-related disease (IgG4-RD). CASE REPORT We describe a case of a 70-year-old man who was admitted to hospital for obstructive jaundice and abdominal pain. Serum liver function tests were abnormal and upper abdominal computed tomography (CT) imaging showed diffuse pancreatic swelling and strictures of the main pancreatic duct without any focal lesion...
July 24, 2017: American Journal of Case Reports
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