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https://www.readbyqxmd.com/read/28514751/large-scale-clinical-validation-of-biomarkers-for-pancreatic-cancer-using-a-mass-spectrometry-based-proteomics-approach
#1
Jisook Park, Eunjung Lee, Kyoung-Jin Park, Hyung-Doo Park, Jong-Won Kim, Hye In Woo, Kwang Hyuck Lee, Kyu-Taek Lee, Jong Kyun Lee, Joon-Oh Park, Young Suk Park, Jin Seok Heo, Seong Ho Choi, Dong Wook Choi, Kee-Taek Jang, Soo-Youn Lee
We performed an integrated analysis of proteomic and transcriptomic datasets to develop potential diagnostic markers for early pancreatic cancer. In the discovery phase, a multiple reaction monitoring assay of 90 proteins identified by either gene expression analysis or global serum proteome profiling was established and applied to 182 clinical specimens. Nine proteins (P < 0.05) were selected for the independent validation phase and quantified using stable isotope dilution-multiple reaction monitoring-mass spectrometry in 456 specimens...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28506431/usefulness-of-three-dimensional-magnetic-resonance-cholangiopancreatography-with-partial-maximum-intensity-projection-for-diagnosing-autoimmune-pancreatitis
#2
Shin Yanagisawa, Yasunari Fujinaga, Takayuki Watanabe, Masahiro Maruyama, Takashi Muraki, Masaaki Takahashi, Akira Fujita, Sachie Fujita, Masahiro Kurozumi, Kazuhiko Ueda, Hideaki Hamano, Shigeyuki Kawa, Masumi Kadoya
PURPOSE: To compare three-dimensional magnetic resonance cholangiopancreatography (MRCP) with/without partial maximum intensity projection (MIP) and endoscopic retrograde cholangiopancreatography (ERCP) in patients with autoimmune pancreatitis (AIP). MATERIALS AND METHODS: Three-dimensional MRCP and ERCP images were retrospectively analyzed in 24 patients with AIP. We evaluated the narrowing length of the main pancreatic duct (NR-MPD), multiple skipped MPD narrowing (SK-MPD), and side branches arising from the narrowed portion of the MPD (SB-MPD) using four MRCP datasets: 5 original images (MIP5), 10 original images (MIP10), all original images (full-MIP), and a combination of these three datasets (a-MIP)...
May 5, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28486485/hydrogen-peroxide-inhibition-of-bicupin-oxalate-oxidase
#3
John M Goodwin, Hassan Rana, Joan Ndungu, Gaurab Chakrabarti, Ellen W Moomaw
Oxalate oxidase is a manganese containing enzyme that catalyzes the oxidation of oxalate to carbon dioxide in a reaction that is coupled with the reduction of oxygen to hydrogen peroxide. Oxalate oxidase from Ceriporiopsis subvermispora (CsOxOx) is the first fungal and bicupin enzyme identified that catalyzes this reaction. Potential applications of oxalate oxidase for use in pancreatic cancer treatment, to prevent scaling in paper pulping, and in biofuel cells have highlighted the need to understand the extent of the hydrogen peroxide inhibition of the CsOxOx catalyzed oxidation of oxalate...
2017: PloS One
https://www.readbyqxmd.com/read/28473337/impact-of-liraglutide-on-amylase-lipase-and-acute-pancreatitis-in-participants-with-overweight-obesity-and-normoglycemia-prediabetes-or-type-2-diabetes-secondary-analyses-of-pooled-data-from-the-scale-clinical-development-program
#4
William M Steinberg, Julio Rosenstock, Thomas A Wadden, Morten Donsmark, Christine B Jensen, J Hans DeVries
OBJECTIVE: To describe amylase/lipase activity levels and events of acute pancreatitis (AP) in the SCALE (Satiety and Clinical Adiposity-Liraglutide Evidence in individuals with and without diabetes) weight-management trials. RESEARCH DESIGN AND METHODS: Secondary analyses were performed on pooled data from four trials (N = 5,358 with BMI ≥30, or 27 to <30 kg/m(2) with ≥1 comorbidity). Of these, 1,723 had normoglycemia, 2,789 had prediabetes, and 846 had type 2 diabetes...
May 4, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28465532/demonstration-of-interposed-modular-hydrogel-sheet-for-multicellular-analysis-in-a-microfluidic-assembly-platform
#5
Chae Yun Bae, Jaejung Son, Hail Kim, Je-Kyun Park
Hydrogel sheets have emerged as a promising biomaterial scaffold for the encapsulation and transfer of multicellular structures. Although the improvement of the chemical interactions and the design of micro-scaled geometry have contributed to the development of multipurpose hydrogel scaffolds, the application of hydrogel sheets to assess multicellular structures is still challenging. To expand the technical applicability of hydrogel sheets, we here demonstrate that a single layer of the hydrogel sheet can be integrated as an interposed module in a microfluidic device for multicellular analysis...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28462883/effectiveness-of-contrast-enhanced-ultrasound-for-the-diagnosis-of-acute-pancreatitis-a-systematic-review-and-meta-analysis
#6
REVIEW
Yang Fei, Wei-Qin Li
OBJECTIVE: To systematically determine the diagnostic value of contrast-enhanced ultrasound (CEUS) in the assessment of acute pancreatitis. METHODS: Relevant studies were identified by searching the database up to December 2016. Patient clinical characteristics and diagnostic sensitivity and specificity were extracted. The summary receiver operating characteristic (ROC) curve was used to examine the accuracy of CEUS. A meta-analysis was performed to evaluate the clinical utility in the diagnosis and evaluation of acute pancreatitis...
April 4, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28454591/lost-in-translation-returning-germline-genetic-results-in-genome-scale-cancer-research
#7
Amber L Johns, Skye H McKay, Jeremy L Humphris, Mark Pinese, Lorraine A Chantrill, R Scott Mead, Katherine Tucker, Lesley Andrews, Annabel Goodwin, Conrad Leonard, Hilda A High, Katia Nones, Ann-Marie Patch, Neil D Merrett, Nick Pavlakis, Karin S Kassahn, Jaswinder S Samra, David K Miller, David K Chang, Marina Pajic, John V Pearson, Sean M Grimmond, Nicola Waddell, Nikolajs Zeps, Anthony J Gill, Andrew V Biankin
BACKGROUND: The return of research results (RoR) remains a complex and well-debated issue. Despite the debate, actual data related to the experience of giving individual results back, and the impact these results may have on clinical care and health outcomes, is sorely lacking. Through the work of the Australian Pancreatic Cancer Genome Initiative (APGI) we: (1) delineate the pathway back to the patient where actionable research data were identified; and (2) report the clinical utilisation of individual results returned...
April 28, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28448309/clinical-feasibility-of-3-dimensional-magnetic-resonance-cholangiopancreatography-using-compressed-sensing-comparison-of-image-quality-and-diagnostic-performance
#8
Jeong Hee Yoon, Sang Min Lee, Hyo-Jin Kang, Elisabeth Weiland, Esther Raithel, Yohan Son, Berthold Kiefer, Jeong Min Lee
OBJECTIVE: The aim of this study was to evaluate the clinical feasibility of fast 3-dimensional (3D) magnetic resonance cholangiopancreatography (MRCP) using compressed sensing (CS) in comparison with conventional navigator-triggered 3D-MRCP. MATERIALS AND METHODS: This retrospective study was approved by our institutional review board, and the requirement of informed consent was waived. A total of 84 patients (male-to-female ratio, 41:43; mean age, 47.3 ± 18.8 years) who underwent conventional 3D navigator-triggered T2-weighted MRCP using sampling perfection with application optimized contrasts (SPACE) and fast 3D MRCP using SPACE with high undersampling combined with CS reconstruction (CS SPACE; CS-MRCP) on a 3 T scanner were included...
April 26, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28440066/elevated-glypican-1-expression-is-associated-with-an-unfavorable-prognosis-in-pancreatic-ductal-adenocarcinoma
#9
Haizhen Lu, Fangfei Niu, Fang Liu, Jiajia Gao, Yulin Sun, Xiaohang Zhao
Pancreatic ductal adenocarcinoma (PDAC) is the most lethal cancer in humans, with a 5-year survival rate of <5%. Recently, glypican-1 (GPC1)-expressing circulating exosomes were found to be a promising diagnostic tool for PDAC. However, the aberrant expression of GPC1 has not been systematically evaluated in large-scale clinical samples of PDAC. Here, we performed a comprehensive analysis of GPC1 mRNA and protein expression features. Included in this study were 178 PDAC patients from the cancer genome atlas (TCGA) and 186 subjects whose tissues were used in immunohistochemical staining assays...
April 24, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28423671/genome-wide-dna-methylation-analysis-reveals-molecular-subtypes-of-pancreatic-cancer
#10
Nitish Kumar Mishra, Chittibabu Guda
Pancreatic cancer (PC) is the fourth leading cause of cancer deaths in the United States with a five-year patient survival rate of only 6%. Early detection and treatment of this disease is hampered due to lack of reliable diagnostic and prognostic markers. Recent studies have shown that dynamic changes in the global DNA methylation and gene expression patterns play key roles in the PC development; hence, provide valuable insights for better understanding the initiation and progression of PC. In the current study, we used DNA methylation, gene expression, copy number, mutational and clinical data from pancreatic patients...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423602/promoter-hypermethylation-of-lgals4-correlates-with-poor-prognosis-in-patients-with-urothelial-carcinoma
#11
Meei-Maan Wu, Ching-Fei Li, Li-Fang Lin, Alexander Sheng-Shin Wang, Yeong-Shiau Pu, Hsiu-Hua Wang, Ai-Chung Mar, Chien-Jen Chen, Te-Chang Lee
Galectine-4 (gal-4), encoded by the LGALS4 gene, was recently shown to exhibit a tumor suppressive effect in colorectal carcinoma and pancreatic adenocarcinoma, although how the expression of this gene is regulated remains unknown. No reports describe the significance of gal-4 in the malignant potential of urothelial tumors. Thus, we analyzed LGALS4 methylation and gene expression and their clinical relevance and biological function in urothelial carcinoma (UC). LGALS4 methylation was initially identified as a progression biomarker for UC patients through genome-wide DNA methylation profiling of 16 tumor samples...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419614/prospective-comparison-of-biphasic-contrast-enhanced-ct-volume-perfusion-ct-and-3-tesla-mri-with-diffusion-weighted-imaging-for-insulinoma-detection
#12
Liang Zhu, Huadan Xue, Zhaoyong Sun, Ping Li, Tianyi Qian, Xiaoping Xing, Naishi Li, Yupei Zhao, Wenming Wu, Zhengyu Jin
PURPOSE: To evaluate the diagnostic performance of biphasic contrast-enhanced CT (CECT), volume perfusion CT (VPCT) and 3 Tesla MRI with diffusion-weighted imaging (DWI), in patients with clinically suspected insulinomas. MATERIALS AND METHODS: This prospective study was approved by the institutional review board. Sixty-four patients with clinically suspected insulinomas underwent biphasic CECT, VPCT, and 3T MR with DWI. Two radiologists independently determined the presence/absence of tumor using a 5-scale confidence level...
April 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
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
#13
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/28377226/aquaporin-3-facilitates-tumor-growth-in-pancreatic-cancer-by-modulating-mtor-signaling
#14
Xunwei Huang, Li Huang, Minhua Shao
Aquaporins (AQP) have been demonstrated to be dysregulated in many human cancers and is thought to be involved in pancreatic carcinogenesis and progression. However, the oncogenic roles and underlying mechanism of AQP in pancreatic ductal adenocarcinoma (PDAC) remain largely unknown. In this study, by data mining of TCGA dataset and CCLE database, we identified that AQP3 is the major AQP expressed in PDAC. Then, the microRNA-874, was demonstrated to be a key regulator of AQP3 expression in PDAC cells. Genetic silencing of AQP3 expression had pronounced effects on cell proliferation and apoptosis of the PDAC cell lines BXPC3 and HPAFII...
May 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28373469/nab-paclitaxel-and-gemcitabine-in-advanced-pancreatic-cancer-the-one-year-experience-of-the-national-cancer-institute-of-naples
#15
Alessandro Ottaiano, Monica Capozzi, Chiara DE Divitiis, Claudia VON Arx, Elena DI Girolamo, Guglielmo Nasti, Ernesta Cavalcanti, Fabiana Tatangelo, Giovanni Romano, Antonio Avallone, Salvatore Tafuto
BACKGROUND: Pancreas adenocarcinoma is the sixth cause of cancer-related death worldwide with an increasing mortality in the Western countries. Recently, the association between nab-paclitaxel (nab-P) and gemcitabine (GEM) has significantly improved progression-free and overall survival. PATIENTS AND METHODS: Patients affected by metastatic pancreas adenocarcinoma were treated at the Department of Abdominal Oncology of the National Cancer Institute of Naples from July 2015 to July 2016 with nab-P at 125 mg per square meter of body-surface area followed by GEM at 1,000 mg per square meter on days 1, 8 and 15 every 4 weeks...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28373404/precancer-atlas-to-drive-precision-prevention-trials
#16
Avrum Spira, Matthew B Yurgelun, Ludmil Alexandrov, Anjana Rao, Rafael Bejar, Kornelia Polyak, Marios Giannakis, Ali Shilatifard, Olivera J Finn, Madhav Dhodapkar, Neil E Kay, Esteban Braggio, Eduardo Vilar, Sarah A Mazzilli, Timothy R Rebbeck, Judy E Garber, Victor E Velculescu, Mary L Disis, Douglas C Wallace, Scott M Lippman
Cancer development is a complex process driven by inherited and acquired molecular and cellular alterations. Prevention is the holy grail of cancer elimination, but making this a reality will take a fundamental rethinking and deep understanding of premalignant biology. In this Perspective, we propose a national concerted effort to create a Precancer Atlas (PCA), integrating multi-omics and immunity - basic tenets of the neoplastic process. The biology of neoplasia caused by germline mutations has led to paradigm-changing precision prevention efforts, including: tumor testing for mismatch repair (MMR) deficiency in Lynch syndrome establishing a new paradigm, combinatorial chemoprevention efficacy in familial adenomatous polyposis (FAP), signal of benefit from imaging-based early detection research in high-germline risk for pancreatic neoplasia, elucidating early ontogeny in BRCA1-mutation carriers leading to an international breast cancer prevention trial, and insights into the intricate germline-somatic-immunity interaction landscape...
April 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28373362/pancreatic-cancer-genomes-implications-for-clinical-management-and-therapeutic-development
#17
EDITORIAL
Stephan B Dreyer, David K Chang, Peter Bailey, Andrew V Biankin
Pancreatic cancer has become the third leading cause of cancer-related death, with little improvement in outcomes despite decades of research. Surgery remains the only chance of cure, yet only 20% of patients will be alive at 5 years after pancreatic resection. Few chemotherapeutics provide any improvement in outcome, and even then, for approved therapies, the survival benefits are marginal. Genomic sequencing studies of pancreatic cancer have revealed a small set of consistent mutations found in most pancreatic cancers and beyond that, a low prevalence for targetable mutations...
April 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28368947/female-reproductive-factors-exogenous-hormone-use-and-pancreatic-cancer-risk-the-japan-public-health-center-based-prospective-study
#18
Yvonne Teng, Eiko Saito, Sarah K Abe, Norie Sawada, Motoki Iwasaki, Taiki Yamaji, Taichi Shimazu, Shizuka Sasazuki, Manami Inoue, Shoichiro Tsugane
An association between female reproductive factors, exogenous hormone use, and pancreatic cancer risk has long been suggested in laboratory settings, but epidemiological findings remain mixed and inconclusive. Studies carried out on Asian populations are also limited. In this study, 45 617 women aged 40-69 years were followed for an average of 18.4 years in the Japan Public Health Center-based prospective cohort and 211 pancreatic cases were identified as of 31 December 2011. We applied multivariate-adjusted Cox proportional hazards regression models using age as a time-scale to assess the association between female reproductive factors (menstrual status, menarche age, menopause age, number of births, age at first birth, total years of fertility, history of breastfeeding) and exogenous hormone use with the incidence of pancreatic cancer through hazard ratios and confidence intervals...
March 31, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28366671/duodenal-long-noncoding-rnas-are-associated-with-glycemic-control-after-bariatric-surgery-in-high-fat-diet-induced-diabetic-mice
#19
Yongjun Liang, Bo Yu, Yueqian Wang, Zhengdong Qiao, Ting Cao, Peng Zhang
BACKGROUND: The duodenum plays a role in the mechanism of type 2 diabetes remission after bariatric surgery. Roux-en-Y gastric bypass (RYGB) may change gene expression in the duodenum and metabolism. Long noncoding RNAs (lncRNAs) constitute a novel class of RNAs that regulate gene expression. Little is known about how duodenal lncRNAs respond to RYGB. Logically, studies on the changes of duodenal lncRNAs potentially can lead to an understanding of the mechanisms of bariatric surgery, as well as discovery of antidiabetic drug targets and biomarkers predicting postoperative outcome...
February 20, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28366542/key-biological-processes-driving-metastatic-spread-of-pancreatic-cancer-as-identified-by-multi-omics-studies
#20
REVIEW
T Y S Le Large, M F Bijlsma, G Kazemier, H W M van Laarhoven, E Giovannetti, C R Jimenez
Pancreatic ductal adenocarcinoma (PDAC) is an extremely aggressive malignancy, characterized by a high metastatic burden, already at the time of diagnosis. The metastatic potential of PDAC is one of the main reasons for the poor outcome next to lack of significant improvement in effective treatments in the last decade. Key mutated driver genes, such as activating KRAS mutations, are concordantly expressed in primary and metastatic tumors. However, the biology behind the metastatic potential of PDAC is not fully understood...
March 30, 2017: Seminars in Cancer Biology
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