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https://www.readbyqxmd.com/read/28814970/prevalence-and-characteristics-of-epstein-barr-virus-associated-gastric-carcinomas-in-portugal
#1
Célia Nogueira, Marta Mota, Rui Gradiz, Maria Augusta Cipriano, Francisco Caramelo, Hugo Cruz, Ana Alarcão, Francisco Castro E Sousa, Fernando Oliveira, Fernando Martinho, João Moura Pereira, Paulo Figueiredo, Maximino Leitão
BACKGROUND: Gastric cancer (GC) is one of the most common malignant tumors of the digestive tract and is the third leading cause of cancer death worldwide. Epstein-Barr virus (EBV) has been associated with approximately 10% of the total cases of gastric carcinomas. No previous study has analyzed the prevalence of EBV infection in gastric cancer of the Portuguese population. METHODS: In the present study, we have analyzed 82 gastric carcinoma cases and 33 healthy individuals (control group) from Coimbra region for the presence of EBV by polymerase chain reaction (PCR) and by in situ hybridization (ISH) for EBV-encoded small RNAs (EBERs)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28814614/role-of-inactivity-in-chronic-diseases-evolutionary-insight-and-pathophysiological-mechanisms
#2
REVIEW
Frank W Booth, Christian K Roberts, John P Thyfault, Gregory N Ruegsegger, Ryan G Toedebusch
This review proposes that physical inactivity could be considered a behavior selected by evolution for resting, and also selected to be reinforcing in life-threatening situations in which exercise would be dangerous. Underlying the notion are human twin studies and animal selective breeding studies, both of which provide indirect evidence for the existence of genes for physical inactivity. Approximately 86% of the 325 million in the United States (U.S.) population achieve less than the U.S. Government and World Health Organization guidelines for daily physical activity for health...
October 1, 2017: Physiological Reviews
https://www.readbyqxmd.com/read/28814218/diagnosis-and-management-of-pancreatic-exocrine-insufficiency
#3
Mehrdad Nikfarjam, Jeremy S Wilson, Ross C Smith
In 2015, the Australasian Pancreatic Club (APC) published the Australasian guidelines for the management of pancreatic exocrine insufficiency (http://pancreas.org.au/2016/01/pancreatic-exocrine-insufficiency-guidelines). Pancreatic exocrine insufficiency (PEI) occurs when normal digestion cannot be sustained due to insufficient pancreatic digestive enzyme activity. This may be related to a breakdown, at any point, in the pancreatic digestive chain: pancreatic stimulation; synthesis, release or transportation of pancreatic enzymes; or synchronisation of secretions to mix with ingested food...
August 21, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28811309/cellular-and-molecular-mechanisms-coordinating-pancreas-development
#4
REVIEW
Aimée Bastidas-Ponce, Katharina Scheibner, Heiko Lickert, Mostafa Bakhti
The pancreas is an endoderm-derived glandular organ that participates in the regulation of systemic glucose metabolism and food digestion through the function of its endocrine and exocrine compartments, respectively. While intensive research has explored the signaling pathways and transcriptional programs that govern pancreas development, much remains to be discovered regarding the cellular processes that orchestrate pancreas morphogenesis. Here, we discuss the developmental mechanisms and principles that are known to underlie pancreas development, from induction and lineage formation to morphogenesis and organogenesis...
August 15, 2017: Development
https://www.readbyqxmd.com/read/28810879/quantification-of-mutant-spop-proteins-in-prostate-cancer-using-mass-spectrometry-based-targeted-proteomics
#5
Hui Wang, Christopher E Barbieri, Jintang He, Yuqian Gao, Tujin Shi, Chaochao Wu, Athena A Schepmoes, Thomas L Fillmore, Sung-Suk Chae, Dennis Huang, Juan Miguel Mosquera, Wei-Jun Qian, Richard D Smith, Sudhir Srivastava, Jacob Kagan, David G Camp, Karin D Rodland, Mark A Rubin, Tao Liu
BACKGROUND: Speckle-type POZ protein (SPOP) is an E3 ubiquitin ligase adaptor protein that functions as a potential tumor suppressor, and SPOP mutations have been identified in ~10% of human prostate cancers. However, it remains unclear if mutant SPOP proteins can be utilized as biomarkers for early detection, diagnosis, prognosis or targeted therapy of prostate cancer. Moreover, the SPOP mutation sites are distributed in a relatively short region with multiple lysine residues, posing significant challenges for bottom-up proteomics analysis of the SPOP mutations...
August 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28808993/multiplexed-liquid-chromatography-multiple-reaction-monitoring-mass-spectrometry-quantification-of-cancer-signaling-proteins
#6
Yi Chen, Kate J Fisher, Mark Lloyd, Elizabeth R Wood, Domenico Coppola, Erin Siegel, David Shibata, Yian A Chen, John M Koomen
Quantitative evaluation of protein expression across multiple cancer-related signaling pathways (e.g., Wnt/β-catenin, TGF-β, receptor tyrosine kinases (RTK), MAP kinases, NF-κB, and apoptosis) in tumor tissues may enable the development of a molecular profile for each individual tumor that can aid in the selection of appropriate targeted cancer therapies. Here, we describe the development of a broadly applicable protocol to develop and implement quantitative mass spectrometry assays using cell line models and frozen tissue specimens from colon cancer patients...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28807841/racial-disparity-in-gastrointestinal-cancer-risk
#7
REVIEW
Hassan Ashktorab, Sonia S Kupfer, Hassan Brim, John M Carethers
Cancer from the gastrointestinal tract and its associated excretory organs will occur in over 300,000 Americans in 2017, with colorectal cancer responsible for over forty percent of that burden; there will be over 150,000 deaths from this group of cancers in the same time period. Disparities among subgroups related to these cancers' incidence and mortality exist. The epidemiology and risk factors associated with each cancer bear out differences for racial groups in the United States. Esophageal adenocarcinoma is more frequent in Non-Hispanic Whites, whereas esophageal squamous cell carcinoma with risk factors of tobacco and alcohol is more frequent among Blacks...
August 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28806620/a-novel-intestinal-rotation-method-for-digestive-reconstruction-after-combined-pancreaticoduodenectomy-and-extended-right-hemicolectomy-a-case-report-and-surgical-technique
#8
Kosei Takagi, Takahito Yagi, Yuzo Umeda, Ryuichi Yoshida, Daisuke Nobuoka, Takashi Kuise, Kenjiro Kumano, Takeshi Kojima, Takuro Fushimi, Toshiyoshi Fujiwara
INTRODUCTION: Pancreaticoduodenectomy (PD) combined with extended right hemicolectomy (RH) is a challenging procedure for locally advanced malignancies. However, information concerning the reconstruction method of the digestive system is limited. Here, we present a case and surgical technique of a novel intestinal rotation method for digestive reconstruction after PD combined with RH. PRESENTATION OF CASE: A 62-year-old man with locally advanced pancreatic cancer received conversion surgery combined with PD and RH after preoperative chemotherapy...
August 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28803460/-gastrostomy-tubes-indications-and-infectious-complications-in-a-tertiary-hospital
#9
M J Muñoz-Dávila, J M Xandri Ruipera, G Yagüe Guirao, C Salvador García, M Segovia Hernández
OBJECTIVE: Gastrostomy tube is the best option for long-term enteral nutrition. Among its limitations, infections represent the most frequent minor complication. Our aim is the knowledge of the number and type of gastrostomy tubes and its main indication in our hospital. In addition, prevalence of infectious complications was studied paying attention to the main etiologic agents and their antibiotic susceptibility. METHODS: Observational retrospective study from January 2010 to July 2015 through the electronic clinical history and the clinical microbiology laboratory software...
August 14, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28801378/relationship-between-mir-146a-rs2910164-g-c-polymorphism-and-digestive-system-cancer-susceptibility-a-meta-analysis
#10
Xin Xiong, Junfeng Yan, Linghua Li, Yun Li, Yi Cao, Yi Tu, Jinhong Mei
MicroRNAs (miRNAs) are identified negatively regulating gene expression and acting as oncogenes or tumor suppressors in tumorigenesis. The association between miR-146a rs2910164 (G>C) polymorphism and susceptibility to digestive system cancers was contradictory and inconsistent in previously published studies. Presently, we performed a comprehensive literature retrieve on PubMed, Web of Science, Embase, Wanfang and CNKI databases to identify all relevant studies published before July 30, 2016. Odds ratio (OR) and 95% confidential interval (95%CI) were used to calculate the relationship between miR-146a rs2910164 (G>C) polymorphism and digestive system cancers susceptibility...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28798698/%C3%AE-catenin-knockdown-affects-mitochondrial-biogenesis-and-lipid-metabolism-in-breast-cancer-cells
#11
Daniele Vergara, Eleonora Stanca, Flora Guerra, Paola Priore, Antonio Gaballo, Julien Franck, Pasquale Simeone, Marco Trerotola, Stefania De Domenico, Isabelle Fournier, Cecilia Bucci, Michel Salzet, Anna M Giudetti, Michele Maffia
β-catenin plays an important role as regulatory hub in several cellular processes including cell adhesion, metabolism, and epithelial mesenchymal transition. This is mainly achieved by its dual role as structural component of cadherin-based adherens junctions, and as a key nuclear effector of the Wnt pathway. For this dual role, different classes of proteins are differentially regulated via β-catenin dependent mechanisms. Here, we applied a liquid chromatography-mass spectrometry (LC-MS/MS) approach to identify proteins modulated after β-catenin knockdown in the breast cancer cell line MCF-7...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28797447/evaluation-of-the-xpert%C3%A2-hpv-assay-in-the-detection-of-human-papillomavirus-in-formalin-fixed-paraffin-embedded-oropharyngeal-carcinomas
#12
Maria Gabriella Donà, Francesca Rollo, Barbara Pichi, Giuseppe Spriano, Raul Pellini, Renato Covello, Edoardo Pescarmona, Giulia Fabbri, Manuela Scalfari, Tarik Gheit, Maria Benevolo
OBJECTIVES: The increasing incidence of HPV-related Oropharyngeal Squamous Cell Carcinoma (OPSCC) and the improved survival of HPV-positive OPSCC highlight the need for effective tools in evaluating HPV status on formalin-fixed paraffin-embedded (FFPE) cancers. To date, there is no agreement regarding the most appropriate method for HPV testing on FFPE materials. We aimed to investigate the performance of the Xpert® HPV assay (Cepheid) on crude lysates from OPSCC FFPE tissues. MATERIALS AND METHODS: Crude lysates were obtained by proteinase K digestion of FFPE tissues that had already been analyzed by the INNO-LiPA HPV assay and p16(ink4a) immunostaining...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28796840/yes-research-matters
#13
Mari L Shinohara
My father was diagnosed with stomach cancer recently. Luckily, it was still at an early stage, and endoscopic surgery successfully took care of it. My father was fortunate; since people with stomach cancer do not show clear symptoms in the early stages, the disease is often not diagnosed until it becomes advanced. In his case, the diagnosis started from a suggestion by his doctor to check whether he had a gastric infection with Helicobacter pylori, a bacterial species found in the digestive tract. In Japan, where he lives, a majority of gastric cancer patients (more than 99%) have been infected with H...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28795371/hepatoprotective-and-cytotoxic-activities-of-anvillea-garcinii-and-isolation-of-four-new-secondary-metabolites
#14
Shagufta Perveen, Areej Mohammad Al-Taweel, Hasan Soliman Yusufoglu, Ghada Ahmed Fawzy, Ahmed Foudah, Maged Saad Abdel-Kader
Anvillea garcinii is a medicinal plant traditionally used for the treatment of dysentery, gastrointestinal troubles, hepatitis, lung disease, colds, digestive problems and pulmonary affections and in liver diseases. Four new sesquiterpene lactones, garcinamines A-D, along with seven known compounds, were isolated from the leaves of A. garcinii. This is the first report of the isolation of amino acid analogues of parthenolide-type sesquiterpene lactones from the family Asteraceae. Total ethanol extract of leaves as well as the chloroform and n-butanol fractions were tested for their hepatoprotective effect using the carbon tetrachloride liver toxicity model...
August 9, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28792044/enzyme-assisted-peptide-folding-assembly-and-anti-cancer-properties
#15
Chunhui Liang, Debin Zheng, Fang Shi, Tengyan Xu, Cuihong Yang, Jianfeng Liu, Ling Wang, Zhimou Yang
The α-helix is the most prevalent conformation in proteins. However, formation of the α-helical conformation remains a challenge for short peptides with less than 5 amino acids. We demonstrated in this study that enzyme-instructed self-assembly (EISA) provides a unique pathway to assist the self-assembly of peptides into the α-helical conformation, while a heating-cooling process leads to a conformation more similar to a β-sheet. The same peptide with different conformations self-assembled into different nanostructures...
August 9, 2017: Nanoscale
https://www.readbyqxmd.com/read/28791999/-clinical-and-morphological-characteristics-of-gastrointestinal-stromal-tumors
#16
D D Khalikov, F Sh Akhmetzyanov, S V Petrov
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. Despite this, GISTS comprise about 2% in the structure of digestive tract cancers. They are usually localized in the stomach; however, they can be found in the small intestine and more rarely in the colon and esophagus. Although approximately 70% of the GISTs consist predominantly of spindle cells; the epithelioid cell tumors represent 20% of cases; there are also mixed variants. This variability in the morphological structure of GISTs complicates their diagnosis...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28779823/gastrointestinal-disturbances-in-the-elderly
#17
REVIEW
Natalie R Baker, Kala K Blakely
Gastrointestinal (GI) age-related changes create alterations in the body's ability to digest, absorb, and excrete nutrients, medications, and alcohol and disrupts GI immunity responses. All older adults exhibit some degree of swallowing difficulty, also known as senescent swallowing. The effects of chronic disease and sustained use of alcohol, tobacco, and medications often exacerbate age-related GI dysfunction. Older adults often have nonspecific complaints, warranting a thorough health history and physical examination, including prescription and over-the-counter medications...
September 2017: Nursing Clinics of North America
https://www.readbyqxmd.com/read/28777395/health-related-quality-of-life-of-cancer-patients-with-peripherally-inserted-central-catheter-a-pilot-study
#18
Junren Kang, Wei Chen, Wenyan Sun, Ruibin Ge, Hailong Li, Enling Ma, Qingxia Su, Fang Cheng, Jinhua Hong, Yuanjuan Zhang, Cheng Lei, Xinchuan Wang, Aiyun Jin, Wanli Liu
INTRODUCTION: This pilot exploratory study aimed to compare the health-related quality of life (HRQOL) among patients diagnosed with different types of cancer receiving peripherally inserted central catheters (PICCs). METHODS: A multicenter cross-section study of cancer patients with PICCs was performed from February 1, 2013 to April 24, 2014. The primary objective of this study was to compare HRQOL in different cancer type patients with PICC. HRQOL was examined based on European Organisation for Research and Treatment of Cancer Quality-of-Life Questionnaire-Core 30 (EORTC QLQ-C30)...
July 26, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28775133/italian-pool-of-asbestos-workers-cohorts-mortality-trends-of-asbestos-related-neoplasms-after-long-time-since-first-exposure
#19
Daniela Ferrante, Elisabetta Chellini, Enzo Merler, Venere Pavone, Stefano Silvestri, Lucia Miligi, Giuseppe Gorini, Vittoria Bressan, Paolo Girardi, Laura Ancona, Elisa Romeo, Ferdinando Luberto, Orietta Sala, Corrado Scarnato, Simona Menegozzo, Enrico Oddone, Sara Tunesi, Patrizia Perticaroli, Aldo Pettinari, Francesco Cuccaro, Stefano Mattioli, Antonio Baldassarre, Francesco Barone-Adesi, Tiziana Cena, Patrizia Legittimo, Alessandro Marinaccio, Dario Mirabelli, Marina Musti, Roberta Pirastu, Alessandra Ranucci, Corrado Magnani
OBJECTIVE: Asbestos is a known human carcinogen, with evidence for malignant mesothelioma (MM), cancers of lung, ovary, larynx and possibly other organs. MM rates are predicted to increase with a power of time since first exposure (TSFE), but the possible long-term attenuation of the trend is debated. The asbestos ban enforced in Italy in 1992 gives an opportunity to measure long-term cancer risk in formerly exposed workers. METHODS: Pool of 43 previously studied Italian asbestos cohorts (asbestos cement, rolling stock, shipbuilding), with mortality follow-up updated to 2010...
August 3, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28769571/prognostic-and-predictive-values-of-pd-l1-expression-in-patients-with-digestive-system-cancer-a-meta-analysis
#20
Cong Dai, Meng Wang, Jun Lu, Zhiming Dai, Shuai Lin, Pengtao Yang, Tian Tian, Xinghan Liu, Weili Min, Zhijun Dai
BACKGROUND: PD-L1 has been reported to be expressed in diverse human malignancies. However, the prognostic value of PD-L1 in digestive system cancers remains inconclusive. Therefore, we conducted this meta-analysis to evaluate the prognostic impact of PD-L1 expression in digestive system cancers. MATERIALS AND METHODS: We searched the PubMed, Embase, and the Chinese National Knowledge Infrastructure for publications concerning PD-L1 expression in digestive system cancers...
2017: OncoTargets and Therapy
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