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https://www.readbyqxmd.com/read/29351303/automated-inverse-optimization-facilitates-lower-doses-to-normal-tissue-in-pancreatic-stereotactic-body-radiotherapy
#1
Ivaylo B Mihaylov, Eric A Mellon, Raphael Yechieli, Lorraine Portelance
PURPOSE: Inverse planning is trial-and-error iterative process. This work introduces a fully automated inverse optimization approach, where the treatment plan is closely tailored to the unique patient anatomy. The auto-optimization is applied to pancreatic stereotactic body radiotherapy (SBRT). MATERIALS AND METHODS: The automation is based on stepwise reduction of dose-volume histograms (DVHs). Five uniformly spaced points, from 1% to 70% of the organ at risk (OAR) volumes, are used...
2018: PloS One
https://www.readbyqxmd.com/read/29350579/evaluation-of-respiratory-motion-corrected-cone-beam-ct-at-end-expiration-in-abdominal-radiotherapy-sites-a-prospective-study
#2
Russell E Kincaid, Agung E Hertanto, Yu-Chi Hu, Abraham J Wu, Karyn A Goodman, Hai D Pham, Ellen D Yorke, Qinghui Zhang, Qing Chen, Gig S Mageras
BACKGROUND: Cone beam computed tomography (CBCT) for radiotherapy image guidance suffers from respiratory motion artifacts. This limits soft tissue visualization and localization accuracy, particularly in abdominal sites. We report on a prospective study of respiratory motion-corrected (RMC)-CBCT to evaluate its efficacy in localizing abdominal organs and improving soft tissue visibility at end expiration. MATERIAL AND METHODS: In an IRB approved study, 11 patients with gastroesophageal junction (GEJ) cancer and five with pancreatic cancer underwent a respiration-correlated CT (4DCT), a respiration-gated CBCT (G-CBCT) near end expiration and a one-minute free-breathing CBCT scan on a single treatment day...
January 19, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29350372/endoscopic-diagnosis-and-treatment-of-biliary-obstruction-due-to-acute-cholangitis-and-acute-pancreatitis-secondary-to-fasciola-hepatica-infection
#3
Kemal Dolay, Mustafa Hasbahçeci, Engin Hatipoğlu, Fatma Ümit Malya, Adem Akçakaya
In the differential diagnosis of biliary obstruction with unknown etiology, biliary fascioliasis should be considered in endemic and nonendemic regions. After diagnostic evaluation, endoscopic retrograde cholangiopancreatography (ERCP) was performed for etiological evaluation and/or treatment of biliary obstruction in five patients with a mean age of 55.8 years. Endoscopic sphincterotomy and cholangiogram revealed linear filling defects in the biliary system. Fasciola hepatica parasites were extracted using balloon and basket catheters in two and three patients, respectively...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29349894/assessment-of-the-potential-of-temporin-peptides-from-the-frog-rana-temporaria-ranidae-as-anti-diabetic-agents
#4
Vishal Musale, Bruno Casciaro, Maria Luisa Mangoni, Yasser H A Abdel-Wahab, Peter R Flatt, J Michael Conlon
Temporin A (FLPLIGRVLSGIL-NH2 ), temporin F (FLPLIGKVLSGIL-NH2 ), and temporin G (FFPVIGRILNGIL-NH2 ), first identified in skin secretions of the frog Rana temporaria, produced concentration-dependent stimulation of insulin release from BRIN-BD11 rat clonal β-cells at concentrations ≥1 nM, without cytotoxicity at concentrations up to 3 μM. Temporin A was the most effective. The mechanism of insulinotropic action did not involve an increase in intracellular Ca2+ concentrations. Temporins B, C, E, H, and K were either inactive or only weakly active...
January 19, 2018: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/29349051/anisakiasis-involving-the-oral-mucosa
#5
Sang Kyu Choi, Cheol Keun Kim, Soon Heum Kim, Dong In Jo
Anisakis is a parasite with life cycles involving fish and marine mammals. Human infection, anisakiasis, occurs with the ingestion of raw infected seafood and usually presents with acute or chronic gastrointestinal symptoms from esophageal or gastric invasion. We report a rare caseinvolving the oral cavity. A 39-year-old male presented with oral and sub-sternal pain of one day duration after eating raw cuttlefish. Physical examination revealed areas of erythema and edema with a central white foreign particle on the labial and buccal mucosa...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29348852/reduced-fbxw7-expression-in-pancreatic-cancer-correlates-with-poor-prognosis-and-chemotherapeutic-resistance-via-accumulation-of-mcl1
#6
Norihiro Ishii, Kenichiro Araki, Takehiko Yokobori, Dorgormaa Gantumur, Takahiro Yamanaka, Bolag Altan, Mariko Tsukagoshi, Takamichi Igarashi, Akira Watanabe, Norio Kubo, Yasuo Hosouchi, Hiroyuki Kuwano, Ken Shirabe
Pancreatic cancer is a highly malignant tumor type with poor outcomes, and elucidation of the mechanisms involved in cancer progression and therapeutic resistance is critical. FBXW7 is a key regulator of tumor malignant potential, and its substrate MCL1 regulates therapeutic resistance in human malignancies. Therefore, determination of the relevance of FBXW7 expression is critical for improving patient outcomes. In this study, we investigated the function and clinical significance of FBXW7 in pancreatic cancer...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348618/epigallocatechin-gallate-egcg-reduces-the-intensity-of-pancreatic-amyloid-fibrils-in-human-islet-amyloid-polypeptide-hiapp-transgenic-mice
#7
Andras Franko, Diana C Rodriguez Camargo, Annett Böddrich, Divita Garg, Andres Rodriguez Camargo, Birgit Rathkolb, Dirk Janik, Michaela Aichler, Annette Feuchtinger, Frauke Neff, Helmut Fuchs, Erich E Wanker, Bernd Reif, Hans-Ulrich Häring, Andreas Peter, Martin Hrabě de Angelis
The formation of amyloid fibrils by human islet amyloid polypeptide protein (hIAPP) has been implicated in pancreas dysfunction and diabetes. However, efficient treatment options to reduce amyloid fibrils in vivo are still lacking. Therefore, we tested the effect of epigallocatechin gallate (EGCG) on fibril formation in vitro and in vivo. To determine the binding of hIAPP and EGCG, in vitro interaction studies were performed. To inhibit amyloid plaque formation in vivo, homozygous (tg/tg), hemizygous (wt/tg), and control mice (wt/wt) were treated with EGCG...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348149/in-memoriam-ben-barres
#8
Nicola J Allen, Richard Daneman
Ben Barres, professor of neurobiology at Stanford University and member of the JCB editorial board for over 15 years, passed away on December 27, 2017, after a lengthy battle with pancreatic cancer. Ben left an indelible mark on the scientific community as a scientist, an advocate for equality, and an unbelievably supportive mentor. As a scientist his creative approaches led him to remarkable discoveries about the importance of glial cells in the brain, and his passion elevated these cells from the "other cells in the brain" to a significant place in the consciousness of neurobiology...
January 18, 2018: Journal of Cell Biology
https://www.readbyqxmd.com/read/29346805/mesenteric-vessel-patency-following-hifu-therapy-in-patients-with-locally-invasive-pancreatic-cancer
#9
Holger M Strunk, Caroline Lützow, Jana Henseler, Martin Mücke, Maximilian Rauch, Christian Marx, Hans H Schild, Milka Marinova
PURPOSE:  To evaluate the effects of HIFU therapy on visceral vessel patency in patients with inoperable locally invasive pancreatic cancer. MATERIALS AND METHODS:  50 pancreatic cancer patients (26 men, 24 women) aged 41 - 82 years (65.0 ± 10.2) underwent ultrasonography (US) and computed tomography (CT) examinations before and within one day after HIFU treatment, as well as at follow-up at six weeks, three months and six months. Evaluation and grading were performed by two experienced independent radiologists according to a classification scheme based on vessel involvement, vessel diameter, patency, and defects in flow...
January 18, 2018: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29346712/synergetic-effects-of-prenatal-and-postnatal-high-sucrose-intake-on-glucose-tolerance-and-hepatic-insulin-resistance-in-rat-offspring
#10
Pengjie Zhang, Di Zhu, Yueming Zhang, Lingjun Li, Xionghui Chen, Wenna Zhang, Ruixiu Shi, Jianying Tao, Bing Han, Zhice Xu
SCOPE: High sucrose intake during pregnancy is linked to type 2 diabetes mellitus and altered insulin resistance. METHODS AND RESULTS: This study attempted to ascertain whether prenatal high sucrose intake (20% sucrose) alleviates the detrimental effects of high postnatal sugar consumption in the offspring, and the molecular mechanisms were investigated using a rat model. High prenatal sucrose exposure increased the body weight of the offspring at 1 to 3 weeks of age...
January 18, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29346059/fermented-extraction-of-citrus-unshiu-peel-inhibits-viability-and-migration-of-human-pancreatic-cancers
#11
Jungwhoi Lee, Jungsul Lee, Myungseung Kim, Jae Hoon Kim
Pancreatic cancer is one of the most dangerous cancers with high mortality rates. Despite continuous efforts, there has been limited improvement in its prognosis. In this study, we prepared fermented extract of Citrus unshiu peel (fCUP) from the by-product after juice processing and then examined the anticancer effects of fCUP on human pancreatic cancer cells. Treatment with fCUP inhibited the growth of human pancreatic cancer cells through induction of caspase-3 cleavage both in vitro and in vivo. Treatment with fCUP also blocked the migration of human pancreatic cancer cells through activation of intracellular signaling pathways such as MKK3/6 and P38...
January 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29345595/hospital-management-of-severe-hypertriglyceridemia-in-children
#12
Ambika Ashraf, Badhma Valaiyapathi
Severe hypertriglyceridemia (HTG), i.e., triglyceride levels exceeding 1000 mg/dL, is one of the established causes of acute pancreatitis and severe abdominal pain. There are no established pediatric guidelines for treatment of children and adolescents with severe HTG. Management often includes hospital admission, fasting followed by fat free diet until the triglyceride (TG) levels are below 1000 mg/dL. Insulin infusion lowers TG levels in patients, especially in those with diabetes. Plasmapheresis is a limited option due to its restricted availability and scarcity of studies on its efficacy and safety in children...
January 16, 2018: Current Pediatric Reviews
https://www.readbyqxmd.com/read/29345360/mtor-a-double-edged-sword-for-diabetes
#13
REVIEW
Yali Tuo, Ming Xiang
Diabetes is both a metabolic and an immune disorder. One intriguing link between the two is the serine-threonine protein kinase mammalian target of rapamycin (mTOR). As a component of the PI3K/Akt pathway and other cellular signals, mTOR is a key regulator of fuel metabolism and function of both pancreatic islet β cells and immune cells. Consequently, it seems that mTOR has both anti- and prodiabetic effects. On the one hand, activation of mTOR in β cells can increase their growth and proliferation, opposing impairments of insulin secretion in diabetes...
January 9, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29344878/gemcitabine-and-taxane-adjuvant-therapy-with-chemoradiation-in-resected-pancreatic-cancer-a-novel-strategy-for-improved-survival
#14
Zaheer S Kanji, Alicia M Edwards, Margaret T Mandelson, Nadav Sahar, Bruce S Lin, Kasra Badiozamani, Guobin Song, Adnan Alseidi, Thomas R Biehl, Richard A Kozarek, William S Helton, Vincent J Picozzi, Flavio G Rocha
BACKGROUND: Gemcitabine-taxane combination chemotherapy has demonstrated a survival benefit clinically in metastatic pancreatic cancer (PC). The authors present their experience with gemcitabine and docetaxel (gem/tax)-based adjuvant treatment (Rx) after surgery with curative intent. METHODS: Patients with de novo resectable PC from January 2010 to December 2015 were identified from the authors' institutional database and registry. The study included only patients who received gem/tax as their initial Rx administered exclusively at the authors' institution with or without chemoradiation (CRTx)...
January 17, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29344783/endoscopic-treatment-of-walled-off-pancreatic-necrosis-complicated-with-pancreaticocolonic-fistula
#15
Mateusz Jagielski, Marian Smoczyński, Krystian Adrych
BACKGROUND: Pancreaticocolonic fistulas (PCFs) are serious complication of acute pancreatitis related with high mortality. The aim of this study was to evaluate the efficiency and safety of endoscopic treatment in patients with walled-off pancreatic necrosis (WOPN) complicated with PCF. METHODS: This is a retrospective analysis of results and complications in the group of 226 patients, who underwent endoscopic treatment of symptomatic WOPN between years 2001 and 2016 in the Department of Gastroenterology and Hepatology of Medical University of Gdańsk...
January 17, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29344673/golph2-a-gene-downstream-of-ras-signaling-promotes-the-progression-of-pancreatic-ductal-adenocarcinoma
#16
Juan Duan, Xiaoguang Li, Shan Huang, Yanhua Zeng, Yan He, Hekun Liu, Dexin Lin, Dongdong Lu, Min Zheng
Various studies have previously demonstrated that Golgi protein-73 (GOLPH2) is overexpressed in tumorigenesis, which has been observed in hepatocellular carcinoma and prostate cancer. However, the expression levels and specific functions of GOLPH2 in the progression of pancreatic cancer remain to be elucidated. The present study aimed to investigate the expression of GOLPH2 in pancreatic ductal adenocarcinoma (PDAC) tissues and examined the effects of GOLPH2 on the growth and migration of pancreatic cancer cells...
January 15, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344522/intraductal-papillary-mucinous-neoplasms-of-the-pancreas-strategic-considerations
#17
Vicente Morales-Oyarvide, Zhi Ven Fong, Carlos Fernández-Del Castillo, Andrew L Warshaw
Intraductal papillary mucinous neoplasms (IPMN) are cystic neoplasms with the potential for progression to pancreatic cancer. Recognized by the global medical community just over two decades ago, IPMN have gained great epidemiological and clinical relevance thanks to the widespread use of cross-sectional abdominal imaging, which has led to a surge in the number of incidental pancreatic cysts being diagnosed. As our understanding of this disease has improved, we now know that some IPMN have a very elevated risk of cancer and require surgical resection, while others are low-risk lesions and can be followed...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344035/hypercalcaemic-pancreatitis-adrenal-insufficiency-autoimmune-thyroiditis-and-diabetes-mellitus-in-a-girl-with-probable-sarcoidosis
#18
Devi Dayal, Olivia Pepper, Renuka Ramakrishnan, Eileen Baildam, Poonam Dharmaraj, Gavin Cleary, Liza McCann, Clare Pain, Senthil Senniappan
Introduction: Sarcoidosis is a multisystemic granulomatous disease with diverse and often non-specific symptoms during childhood. The clinical manifestations sometimes include endocrinopathies related to sarcoid infiltration of various endocrine organs, but more commonly due to the associated autoimmune endocrine disorders. There are only a few reports of multiple autoimmune and non-autoimmune endocrine problems occurring simultaneously in patients with sarcoidosis. We report a girl with probable sarcoidosis who also had Hashimoto's thyroiditis, Type 1 diabetes (T1D) and secondary adrenal insufficiency...
October 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29343664/the-anti-inflammatory-action-of-maropitant-in-a-mouse-model-of-acute-pancreatitis
#19
Atsushi Tsukamoto, Minami Ohgoda, Nozomi Haruki, Masatoshi Hori, Tomo Inomata
The neurokinin 1 receptor (NK1R) plays an important role in the pathogenesis of acute pancreatitis (AP). Maropitant is an NK1R antagonist that is widely used as an antiemetic in dogs and cats. In the present study, we investigated the anti-inflammatory action of maropitant in a mouse model of AP. AP was induced in BALB/c mice by intraperitoneal administration of cerulein, and maropitant was administered subcutaneously at a dose of 8 mg/kg. We assessed the mRNA expression levels of NK1R and substance P (SP) in the pancreatic tissue via real-time reverse transcription polymerase chain reaction...
January 16, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29343207/genome-wide-analysis-identified-a-number-of-dysregulated-long-noncoding-rna-lncrna-in-human-pancreatic-ductal-adenocarcinoma
#20
Sijie Hao, Lie Yao, Jiaxin Huang, Hang He, Feng Yang, Yang Di, Chen Jin, Deliang Fu
BACKGROUND: Long noncoding RNAs have been shown to play crucial roles in cancer biology, while the long noncoding RNA landscapes of pancreatic ductal adenocarcinoma have not been completely characterized. We aimed to determine whether long noncoding RNA could serve as early diagnostic biomarkers for pancreatic ductal adenocarcinoma. METHOD: We conducted a genome-wide microarray analysis on pancreatic ductal adenocarcinoma and their adjacent noncancerous tissues from 8 Chinese patients...
January 1, 2018: Technology in Cancer Research & Treatment
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