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Acute pancreatitis, pancreatic cancer

Muhammad Khairi Ahmad, Nur Ainina Abdollah, Nurul Husna Shafie, Narazah Mohd Yusof, Siti Razila Abdul Razak
Mitogen-activated protein kinases (MAPKs) are the main regulators of cellular proliferation, growth, and survival in physiological or pathological conditions. Aberrant MAPK signaling plays a pivotal role in carcinogenesis, which leads to development and progression of human cancer. Dual-specificity phosphatase 6 (DUSP6), a member of the MAPK phosphatase family, interacts with specifically targeted extracellular signal-regulated kinase 1/2 via negative feedback regulation in the MAPK pathway of mammalian cells...
February 2018: Cancer Biology & Medicine
Anthony J Kee, Jayshan Chagan, Jeng Yie Chan, Nicole S Bryce, Christine A Lucas, Jun Zeng, Jeff Hook, Herbert Treutlein, D Ross Laybutt, Justine R Stehn, Peter W Gunning, Edna C Hardeman
The development of novel small molecule inhibitors of the cancer-associated tropomyosin 3.1 (Tpm3.1) provides the ability to examine the metabolic function of specific actin filament populations. We have determined the ability of these anti-Tpm (ATM) compounds to regulate glucose metabolism in mice. Acute treatment (1 h) of wild-type (WT) mice with the compounds (TR100 and ATM1001) led to a decrease in glucose clearance due mainly to suppression of glucose-stimulated insulin secretion (GSIS) from the pancreatic islets...
March 15, 2018: Scientific Reports
Dong Il Gwon, Gi-Young Ko, Jong Woo Kim, Heung Kyu Ko, Hyun-Ki Yoon, Kyu-Bo Sung
Objective: To investigate the technical safety and clinical efficacy of a double-stent system with long duodenal extension in patients with malignant extrahepatic biliary obstruction. Materials and Methods: This prospective study enrolled 48 consecutive patients (31 men, 17 women; mean age, 61 years; age range, 31-77 years) with malignant extrahepatic biliary obstructions from May 2013 to December 2015. All patients were treated with a double-stent system with long duodenal covered extension (16 cm or 21 cm)...
March 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
Zhao-Peng Dong, Qian Wang, Zhen-Jie Zhang, Michael J Carr, Dong Li, Wei-Feng Shi
Globally, coxsackievirus B4 (CV-B4) has been continuously isolated and evidence suggests an association with the development of pancreatitis and type I diabetes. In addition, CV-B4 is also associated with myocarditis and severe central nervous system (CNS) complications, which remain poorly studied and understood. In the present study, we established an Institute for Cancer Research (ICR) mouse model of CV-B4 infection and examined whether CV-B4 infection resulted in a predisposition to myocarditis and CNS infection...
January 18, 2018: Zoological Research
Sho Takeshita, Toshiyasu Ogata, Hidekazu Mera, Jun Tsugawa, Mikiko Aoki, Morishige Takeshita, Yoshio Tsuboi
A 65-year-old woman presented to our emergency room because of sudden onset of right hemiparesis with severe fatigue. Neurological examination revealed right hemiparesis with right facial numbness and an extensor planter response on the right side.Magnetic resonance imaging with diffusion-weighted imaging revealed multiple highintensity areas in both cerebral hemispheres and the right cerebellum. A diagnosis of acute stage of multiple brain infarctions caused by emboli was made. An abdominal computed tomography showed a pancreatic tumor with multiple liver metastases...
March 1, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
André Jacques Scheen
Dipeptidyl peptidase-4 inhibitors (DPP-4is) are generally considered as glucose-lowering agents with a safe profile in type 2 diabetes. Areas covered: An updated review of recent safety data from randomised controlled trials, observational studies, meta-analyses, pharmacovigilance reports regarding alogliptin, linagliptin, saxagliptin, sitagliptin, and vildagliptin, with a special focus on risks of hypoglycemia, pancreatitis and pancreatic cancer, major cardiovascular events, hospitalisation for heart failure and other new safety issues, such as bone fractures and arthralgia...
April 2018: Expert Opinion on Drug Safety
Ryoko Shimizuguchi, Masataka Kikuyama, Terumi Kamisawa, Sawako Kuruma, Kazuro Chiba
An 80-year-old woman with pancreatic cancer was admitted with fever and abdominal pain. Blood examinations showed an elevated CRP level. On computed tomography (CT), a pancreatic tumor with a dilated upstream main pancreatic duct (MPD) was seen. Endoscopic retrograde cholangiopancreatography (ERCP) showed the strictured part of the MPD at the head of the pancreas with upstream dilatation. A nasopancreatic drainage tube was placed. Through the tube, purulent pancreatic juice was discharged and culture of the pancreatic juice grew Klebsiella pneumoniae...
February 20, 2018: Clinical Journal of Gastroenterology
Mariola Śliwińska-Mossoń, Grzegorz Marek, Halina Milnerowicz
The aim of this study was to review the diagnostic significance of pancreatic polypeptide (PP) in pancreatic diseases. PP may play a significant role in monitoring the development of the disease and the patient's healing process, particularly after the removal of a portion of the pancreas. Determining PP in acute pancreatitis is quite controversial. At the 1st stage of severe pancreatic damage, there is excessive PP release followed by its fall. In patients with chronic pancreatitis, a significant decrease in PP secretion was found in the presence of a food stimulant...
December 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Masataka Kikuyama, Terumi Kamisawa, Sawako Kuruma, Kazuro Chiba, Shinya Kawaguchi, Shuzo Terada, Tatsunori Satoh
Pancreatic cancer (PC) has a poor prognosis due to delayed diagnosis. Early diagnosis is the most important factor for improving prognosis. For early diagnosis of PC, patients with clinical manifestations suggestive of PC and high risk for developing PC need to be selected for examinations for PC. Signs suggestive of PC (e.g., symptoms, diabetes mellitus, acute pancreatitis, or abnormal results of blood examinations) should not be missed, and the details of risks for PC (e.g., familial history of PC, intraductal mucin producing neoplasm, chronic pancreatitis, hereditary pancreatitis, or life habit) should be understood...
February 11, 2018: Cancers
Siliang Xu, Xiaoqiang Liu, Lingling Gao, Boqun Xu, Jianmin Li, Chao Gao, Yugui Cui, Jiayin Liu
As a multifunctional protein involved in numerous biological processes, Set is expressed in several embryonic and adult organs. Furthermore, Set is overexpressed in numerous types of human cancers, including acute myeloid leukemia, breast cancer and pancreatic cancer. The expression of Set in germ cells is involved in gonad development, and the overexpression of Set has been observed in polycystic ovaries. In order to elucidate the physiological and pathological roles of Set, a Set transgenic mouse model was developed, in which the global overexpression of Set in adult tissues could be induced via the Cre/loxP system with the precise deletion of the Stop fragment in double-transgenic hybrids...
February 2018: Experimental and Therapeutic Medicine
Jakob Kirkegård, Deirdre Cronin-Fenton, Uffe Heide-Jørgensen, Frank Viborg Mortensen
BACKGROUND & AIMS: Acute pancreatitis may be a risk factor for pancreatic cancer. However, findings from studies on this association are conflicting. We investigated the association between acute pancreatitis and increased risk of pancreatic cancer. METHODS: We conducted a nationwide, population-based, matched cohort study of all patients admitted to a hospital in Denmark with a diagnosis of acute pancreatitis from January 1, 1980 through October 31, 2012. As many as 5 individuals from the general population without acute pancreatitis were matched for age and sex to each patient with acute pancreatitis...
February 9, 2018: Gastroenterology
Kenta Morita, Takahiro Suzuki, Yuya Nishimura, Kazuhisa Matsumoto, Chiya Numako, Kazuyoshi Sato, Masao Nakayama, Ryohei Sasaki, Chiaki Ogino, Akihiko Kondo
Polyacrylic acid (PAA)-modified titanium peroxide nanoparticles (PAA-TiOx NPs) are promising radiosensitizers. PAA-TiOx NPs were synthesized from commercial TiO2 nanoparticles that were modified with PAA and functionalized by H2O2 treatment. To realize practical clinical uses for PAA-TiOx NPs, their tissue distribution and acute toxicity were evaluated using healthy mice and mice bearing tumors derived from xenografted MIAPaCa-2 human pancreatic cancer cells. Healthy mice were injected with PAA-TiOx NPs at 25 mg/kg body weight via the tail vein, and tumor-bearing mice were injected either into the tumor locally or via the tail vein...
February 7, 2018: Journal of Bioscience and Bioengineering
Takuya Hamakawa, Kazuhiro Nishikawa, Motohiro Hirao, Kei Yamamoto, Ayako Fujiwara, Sakae Maeda, Mamoru Uemura, Masakazu Miyake, Naoki Hama, Atsushi Miyamoto, Michihiko Miyazaki, Takeshi Kato, Koji Takami, Shoji Nakamori, Mitsugu Sekimoto
Here we report a case of a hemorrhagic gastric cancer patient with severe coronary artery disease, in whom the cancer was successfully resected with the support of intra-aortic balloon pumping(IABP). An 80-year-old man was referred to our hospital for further examination of his anemia and tumor around the pancreatic head. He was diagnosed with type 3 gastric cancer with multiple bulky lymph node metastases invadingto the pancreas(cT4b[LN-Panc], N3a, M1[LYM No.16a2int], cStage IV ). Tarry stools continued and blood transfusion was repeatedly required...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Daisuke Takiuchi, Osakuni Morimoto, Ryohei Wada, Masaya Higashiguchi, Takashi Nonoshita, Kentaro Nishida, Noriko Wada, Kazuya Sakata, Yusuke Akamaru, Hirofumi Ota, Kunitaka Shibata, Hirotsugu Ohashi
We report a case of a highly advanced urothelial carcinoma accompanied by duodenal stenosis with pancreaticoduodenectomy. A6 6-year-old man presented with upper abdominal pain and vomiting. Acute pancreatitis and hydronephrosis were diagnosed with urgent hospitalization, but jaundice appeared, and stenosis of the duodenum was also found. Thus, we suspected groove pancreatitis or pancreatic cancer, and performed pancreaticoduodenectomy. However, poorly differentiated adenocarcinoma was observed in the retroperitoneal dissection surface in the intraoperative rapid tissue and right hemicolectomy, right nephrectomy, and right ureteral resection were added to the diagnosis...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Ajaikumar B Kunnumakkara, Bethsebie L Sailo, Kishore Banik, Choudhary Harsha, Sahdeo Prasad, Subash Chandra Gupta, Alok Chandra Bharti, Bharat B Aggarwal
Extensive research within the last several decades has revealed that the major risk factors for most chronic diseases are infections, obesity, alcohol, tobacco, radiation, environmental pollutants, and diet. It is now well established that these factors induce chronic diseases through induction of inflammation. However, inflammation could be either acute or chronic. Acute inflammation persists for a short duration and is the host defense against infections and allergens, whereas the chronic inflammation persists for a long time and leads to many chronic diseases including cancer, cardiovascular diseases, neurodegenerative diseases, respiratory diseases, etc...
January 25, 2018: Journal of Translational Medicine
Subhankar Dolai, Tao Liang, Abrahim I Orabi, Douglas Holmyard, Li Xie, Dafna Greitzer-Antes, Youhou Kang, Huanli Xie, Tanveer A Javed, Patrick P Lam, Deborah C Rubin, Peter Thorn, Herbert Y Gaisano
BACKGROUND & AIMS: Pancreatic acinar cells are polarized epithelial cells that store enzymes required for digestion as inactive zymogens, tightly packed at the cell apex. Stimulation of acinar cells causes the zymogen granules to fuse with the apical membrane, and the cells undergo exocytosis to release proteases into the intestinal lumen. Autophagy maintains homeostasis of pancreatic acini. Syntaxin 2 (STX2), an abundant SNARE protein in pancreatic acini, has been reported to mediate apical exocytosis...
January 19, 2018: Gastroenterology
Lana C Pinto, Dimitris V Rados, Sabrina S Barkan, Cristiane B Leitão, Jorge L Gross
The use of dipeptidyl peptidase-4 (DPP-4) inhibitors may be associated with pancreatic cancer and acute pancreatitis. Recent meta-analyses have reported conflicting findings. Therefore, we performed a meta-analysis to assess the risk of both pancreatic cancer and acute pancreatitis associated with the use of DPP-4 inhibitors. We also used trial sequential analysis to evaluate whether the number of patients included was enough to reach conclusions. We included randomised controlled trials lasting 24 weeks or more that compared DPP-4 inhibitors with placebo or other antihyperglycaemic agents...
January 15, 2018: Scientific Reports
Raphaël Jumeau, Guila Delouya, David Roberge, David Donath, Dominic Béliveau-Nadeau, Marie-Pierre Campeau
INTRODUCTION: Despite advances in treatment, notably in systemic therapy, the prognosis of pancreatic adenocarcinoma (PADC) remains dismal. Stereotactic body radiotherapy (SBRT) is an emerging tool in the complex management of PADC. We review outcomes of SBRT for PADC at our institution. METHODS: We reviewed patients treated with SBRT for either unresectable PADC or locally recurrent PADC after surgery. Treatment was delivered using a robotic radiosurgery system with respiratory tracking...
December 21, 2017: Digestive and Liver Disease
Lisa Ratanaprasatporn, Jennifer W Uyeda, Jeremy R Wortman, Ian Richardson, Aaron D Sodickson
Imaging of the gallbladder has a key role in the examination of patients with abdominal pain-especially pain localized to the right upper quadrant. Pathologic conditions that affect the gallbladder include cholelithiasis and associated complications such as acute and chronic cholecystitis, choledocholithiasis, gallstone pancreatitis, and cancer. Modalities used to image the gallbladder include ultrasonography (US), computed tomography (CT), magnetic resonance (MR) imaging, and nuclear scintigraphy. US is the primary imaging modality used to evaluate entities suspected of being gallbladder disease, as it is both sensitive and specific for demonstrating gallstones, biliary duct dilatation, and inflammatory features...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Annan Yang, Grit Herter-Sprie, Haikuo Zhang, Elaine Y Lin, Douglas Biancur, Xiaoxu Wang, Jiehui Deng, Josephine Hai, Shenghong Yang, Kwok-Kin Wong, Alec C Kimmelman
Autophagy has been shown to be elevated in pancreatic adenocarcinoma (PDAC) and its role in promoting established tumor growth has made it a promising therapeutic target. However, due to limitations of prior mouse models as well as the lack of potent and selective autophagy inhibitors, the ability to fully assess the mechanistic basis of how autophagy supports pancreatic cancer has been limited. To test the feasibility of treating PDAC using autophagy inhibition and further our understanding of the mechanisms of pro-tumor effects of autophagy, we developed a novel mouse model that allowed the acute and reversible inhibition of autophagy...
January 9, 2018: Cancer Discovery
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