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https://www.readbyqxmd.com/read/28808875/ssat-state-of-the-art-conference-current-surgical-management-of-gastric-tumors
#1
Jeffrey A Norton, Teresa Kim, Joseph Kim, Martin D McCarter, Kaitlyn J Kelly, Joyce Wong, Jason K Sicklick
INTRODUCTION: The current era of gastric surgery is marked by low morbidity and mortality rates, innovative strategies to approach resections with a minimally invasive fashion or hyperthermic intraperitoneal chemotherapy (HIPEC), as well as improved understanding of the biology of sporadic and hereditary stromal, neuroendocrine, and epithelial malignancies. METHODS: In 2017, the Society for Surgery of the Alimentary Tract convened a State-of-the-Art Conference on Current Surgical Management of Gastric Tumors with both international experts and emerging leaders in the field of gastric surgery...
August 14, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28806955/reducing-the-socioeconomic-gradient-in-uptake-of-the-nhs-bowel-cancer-screening-programme-using-a-simplified-supplementary-information-leaflet-a-cluster-randomised-trial
#2
Samuel G Smith, Jane Wardle, Wendy Atkin, Rosalind Raine, Lesley M McGregor, Gemma Vart, Steve Morris, Stephen W Duffy, Susan Moss, Allan Hackshaw, Stephen Halloran, Ines Kralj-Hans, Rosemary Howe, Julia Snowball, Graham Handley, Richard F Logan, Sandra Rainbow, Steve Smith, Mary Thomas, Nicholas Counsell, Christian von Wagner
BACKGROUND: Uptake of colorectal cancer screening is low in the English NHS Bowel Cancer Screening Programme (BCSP). Participation in screening is strongly associated with socioeconomic status. The aim of this study was to determine whether a supplementary leaflet providing the 'gist' of guaiac-based Faecal Occult Blood test (gFOBt) screening for colorectal cancer could reduce the socioeconomic status (SES) gradient in uptake in the English NHS BCSP. METHODS: The trial was integrated within routine BCSP operations in November 2012...
August 14, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28791999/-clinical-and-morphological-characteristics-of-gastrointestinal-stromal-tumors
#3
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/28783738/improvement-to-ultrasonographical-differential-diagnosis-of-gastric-lesions-the-value-of-contrast-enhanced-sonography-with-gastric-distention
#4
Tingting Li, Man Lu, Jun Song, Ping Wu, Xueqing Cheng, Zhenqi Zhang
OBJECTIVE: The purpose of this retrospective study is to evaluate the diagnostic value of contrast enhanced sonography plus gastric distention sonography, the Double Contrast-enhanced Ultrasound (DCUS) in gastric lesions. METHODS: 107 cases with pathology confirmed gastric lesions were retrospectively reviewed, DCUS and oral contrast agent ultrasound (US) were performed in all cases prior to operation. Perfusion parameters including arrival time (AT), peak intensity (PI), time to peak (TTP), and area under the curve (AUC) of the lesion and surrounding normal tissue were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28761758/the-european-society-for-medical-oncology-magnitude-of-clinical-benefit-scale-field-tested-in-infrequent-tumour-entities-an-extended-analysis-of-its-feasibility-at-the-medical-university-of-vienna
#5
Barbara Kiesewetter, Markus Raderer, Gerald W Prager, Thorsten Fuereder, Christine Marosi, Matthias Preusser, Michael Krainer, Gottfried J Locker, Thomas Brodowicz, Christoph C Zielinski
BACKGROUND: The European Society for Medical Oncology Magnitude of Clinical Benefit Scale (ESMO-MCBS) is a new tool to quantify the clinical benefit that may be anticipated from a novel anticancer treatment. We present here an analysis on the feasibility of the ESMO-MCBS in less frequent tumour entities. METHODS: This study evaluates the practicability of the ESMO-MCBS for metastatic neuroendocrine tumours (NETs), soft tissue sarcomas, glioblastoma, thyroid cancer, pancreatic cancer, head/neck cancer, urothelial cancer and ovarian cancer at the Medical University Vienna...
2017: ESMO Open
https://www.readbyqxmd.com/read/28759526/68ga-psma-uptake-in-an-incidentally-detected-gastrointestinal-stromal-tumor-in-a-case-of-suspected-carcinoma-prostate
#6
Arun Sasikumar, Ajith Joy, Mra Pillai, Bindu S, Sudin Sr
A 74-year-old man with suspected prostate cancer and a previously negative transrectal ultrasound-guided prostate biopsy underwent Ga-PSMA PET/CT. Scan showed no abnormal tracer concentration in enlarged prostate gland to suggest prostate cancer. Note was made of an incidentally detected well defined soft tissue lesion in the greater curvature of the stomach with moderate tracer concentration in its intraluminal portion. Biopsy of the lesion revealed gastrointestinal stromal tumor.
July 29, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28748443/adherence-to-guidelines-for-adult-non-gist-soft-tissue-sarcoma-in-the-netherlands-a-plea-for-dedicated-sarcoma-centers
#7
Harald J Hoekstra, Rick L M Haas, Cornelis Verhoef, Albert J H Suurmeijer, Carla S P van Rijswijk, Ben G H Bongers, Winette T van der Graaf, Vincent K Y Ho
INTRODUCTION: Optimal management of soft tissue sarcoma (STS) remains a challenge. A nationwide survey assessed the quality of STS care in the Netherlands, thereby aiming to identify potentialities for improvement through more centralized disease management. METHODS: From the Netherlands Cancer Registry (NCR), data were obtained on 3317 adult STS patients (excluding gastrointestinal stromal tumor, GIST) diagnosed in 2006-2011. Logistic regression models were employed to compare outcomes on selected clinical indicators reflecting prevailing STS guidelines between high-volume (≥10 resections annually) and low-volume (<10 resections) hospitals, between academic and general hospitals, and between sarcoma research centers and other hospitals, adjusted for case mix...
July 26, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28736638/cost-effectiveness-of-precision-medicine-in-gastrointestinal-stromal-tumor-and-gastric-adenocarcinoma
#8
REVIEW
Simon B Zeichner, Daniel A Goldstein, Christine Kohn, Christopher R Flowers
Over the past 20 years, with the incorporation of genetic sequencing and improved understanding regarding the mechanisms of cancer growth/metastasis, novel targets and their associated treatments have emerged in oncology and are now regularly incorporated into the clinical care of patients in the US. Novel, more tumor-specific, non-chemotherapy agents, including agents that are commonly used in the treatment of patients with gastric adenocarcinoma (GA) and gastrointestinal stromal tumor (GIST), fall under a broader treatment strategy, termed "precision medicine"...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28732002/-gastrointestinal-stromal-tumor-in-young-pregnant-woman-case-report
#9
Walker Del Cid Jove Oblitas, Miguel Joseph Abril Barreda
Female patient, 28 years old, with a gestation of 14 weeks, natural and from Ilo-Moquegua. Came with a time of disease 4 days with hematemesis, melena, epigastric pain and syncope. Background of colonic resection for peritonitis due to trauma 20 years ago; upper gastrointestinal bleeding three years ago; paternal grandparents died of gastric cancer; chronic gastritis diagnosed from 19 year old. In laboratory studies hemoglobin of 9.2. In the upper gastrointestinal endoscopy was found absence of active upper gastrointestinal bleeding, a large tumor in proximal body toward greater curvature and posterior wall, 8 cm in diameter approximately, lobed appearance, with most of the mucosal surface unscathed is evidence, areas of ulceration of 2-3 mm covered with fibrin (biopsies taken), hard consistency, tent sign (positive) and cushionsign (negative)...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28730217/novel-perspectives-on-gastrointestinal-stromal-tumors-gists
#10
Bogdan Stelian Mastalier Manolescu, Cristiana Gabriela Popp, Valentin Popescu, Dan Andraş, Sabina Andrada Zurac, Costin Berceanu, Aida TincuŢa Petca
Since they were described, gastrointestinal stromal tumors (GISTs) are, for pathologists and not only for them, a subject of controversy regarding histological origin, differentiation, nomenclature, malignant potential and prognosis. Before 1998, there were no certainties that GISTs were fundamentally different from other types of abdominal cancers in the big family of mesenchymal tumors. Before the discovery of KIT gene mutations, GISTs were most often classified as leiomyoma, leiomyosarcoma, leiomyoblastoma, and gastrointestinal autonomic nerve tumor...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28730166/impact-of-chromosomal-rearrangement-upon-dna-methylation-patterns-in-leukemia
#11
Hyang-Min Byun, Shahrooz Eshaghian, Dan Douer, Jonathen Trent, Guillermo Garcia-Manero, Ravi Bhatia, Kim Siegmund, Allen S Yang
Genomic instability, including genetic mutations and chromosomal rearrangements, can lead to cancer development. Aberrant DNA methylation occurs commonly in cancer cells. The aim of this study is to determine the effects of a specific chromosomal lesion the BCR-ABL translocation t(9:22), in establishing DNA methylation profiles in cancer. Materials and methods We compared DNA methylation of 1,505 selected promoter CpGs in chronic myelogenous leukemia (CML), acute lymphoblastic leukemia (ALL) with and without the Philadelphia chromosome t(9:22), CD34+ hematopoietic stem cells transfected with BCR-ABL, and other tumors without BCR-ABL (acute promyelocytic leukemia (APL) and gastrointestinal stromal tumors (GIST)...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28723416/unravelling-the-pharmacologic-opportunities-and-future-directions-for-targeted-therapies-in-gastro-intestinal-cancers-part-2-neuroendocrine-tumours-hepatocellular-carcinoma-and-gastro-intestinal-stromal-tumours
#12
REVIEW
Cindy Neuzillet, Louis de Mestier, Benoît Rousseau, Olivier Mir, Mohamed Hebbar, Hemant M Kocher, Philippe Ruszniewski, Christophe Tournigand
Until the 1990s, cytotoxic chemotherapy has been the cornerstone of medical therapy for gastrointestinal (GI) cancers. Better understanding of the cancer cell molecular biology has led to the therapeutic revolution of targeted therapies, i.e. monoclonal antibodies or small molecule inhibitors directed against proteins that are specifically overexpressed or mutated in cancer cells. These agents, being more specific to cancer cells, were expected to be less toxic than conventional cytotoxic agents. However, their effects have sometimes been disappointing, due to intrinsic or acquired resistance mechanisms, or to an activity restricted to some tumour settings, illustrating the importance of patient selection and early identification of predictive biomarkers of response to these therapies...
July 16, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28722090/-evaluation-of-a-new-closure-technique-of-large-defects-after-endoscopic-full-thickness-resection
#13
Xiao Liu, Lizhou Dou, Yong Liu, Shun He, Yueming Zhang, Xinying Yu, Yan Ke, Xudong Liu, Ruigang Wang, Guiqi Wang
OBJECTIVE: To investigate the security and efficacy of a new endoscopic closure method of large defects after endoscopic full-thickness resection (EFTR) double purse-string suture using two endoloops and metallic clips via single-channel endoscopy. METHODS: Clinical data of 23 cases with submucosal tumors (SMT) who received endoscopic resection from June 2015 to July 2016 in our National Cancer Center were collected. For gastric and esophageal SMTs or the mucosa layer injured during submucosal tunneling endoscopic resection (STER), double purse-string suture was conducted after EFTR...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28720665/targeted-exome-sequencing-of-krebs-cycle-genes-reveals-candidate-cancer-predisposing-mutations-in-pheochromocytomas-and-paragangliomas
#14
Laura Remacha, Iñaki Comino-Méndez, Susan Richter, Laura Contreras, Maria Currás-Freixes, Guillermo Pita, Rocío Letón, Antonio Galarreta, Rafael Torres-Pérez, Emiliano Honrado, Scherezade Jiménez, Lorena Maestre, Sebastian Moran, Manel Esteller, Jorgina Satrústegui, Graeme Eisenhofer, Mercedes Robledo, Alberto Cascon
Purpose: Mutations in Krebs cycle genes are frequently found in patients with pheochromocytomas/paragangliomas. Disruption of SDH, FH or MDH2 enzymatic activities lead to accumulation of specific metabolites, which give rise to epigenetic changes in the genome that cause a characteristic hypermethylated phenotype. Tumors showing this phenotype, but no alterations in the known predisposing genes, could harbor mutations in other Krebs cycle genes. <p>Experimental Design: We used downregulation and methylation of RBP1, as a marker of a hypermethylation phenotype, to select eleven pheochromocytomas and paragangliomas for targeted exome sequencing of a panel of Krebs cycle-related genes...
July 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28717701/cost-effectiveness-of-universal-hepatitis-b-virus-screening-in-patients-beginning-chemotherapy-for-sarcomas-or-gi-stromal-tumors
#15
Glorijoy Tan, Ke Zhou, Chee Hian Tan, David B Matchar, Mohamad Farid, Richard Quek, Joanne Ngeow
PURPOSE: The value of screening for hepatitis B virus (HBV) infection before chemotherapy for nonhematopoietic solid tumors remains unsettled. We evaluated the cost effectiveness of universal screening before systemic therapy for sarcomas, including GI stromal tumors (GISTs). PATIENTS AND METHODS: Drawing from the National Cancer Centre Singapore database of 1,039 patients with sarcomas, we analyzed the clinical records of 485 patients who received systemic therapy...
August 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28698433/-molecular-target-therapy-for-soft-tissue-sarcoma
#16
Shunji Takahashi
Soft tissue sarcoma(STS)is one of the rare and intractable cancers, and most types of STS are not sensitive to chemotherapy. Development of specific molecular target therapy for each type of STS is necessary. There are specific chromosome translocations in 20-30% of STS, but their products are mostly transcriptional factors, and target therapy for those factors are difficult to develop. Trabectedin is an alkylating agent and is also inhibit function of transcriptional factors, and shows efficacy for translocation-related sarcoma(TRS)such as myxoid liposarcoma...
June 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28669336/the-safety-efficacy-and-therapeutic-potential-of-histone-deacetylase-inhibitors-with-special-reference-to-panobinostat-in-gastrointestinal-tumors-a-review-of-preclinical-and-clinical-studies
#17
Avineesh Singh, Preeti Patel, Jageshwar, Vijay Kumar Patel, Deepak Kumar Jain, M Kamal, Harish Rajak
Histone deacetylase inhibitors (HDACi) have demonstrated as an emerging class of anticancer drugs involved in regulation of gene expression and chromatin remodeling thus indicating valid targets for different types of cancer therapeutics. The pan-deacetylase inhibitor panobinostat (Farydac®, LBH589) is developed by Novartis Pharmaceuticals and a newly US FDA approved drug for the multiple myeloma. It is under clinical investigation for a range of hematological and solid tumors worldwide in both oral and intravenous formulations...
June 30, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28668437/usefulness-of-conventional-and-low-dose-hydro-ct-in-the-diagnosis-of-gastric-tumors-in-comparison-to-endoscopy
#18
Krzysztof Międzybrodzki, Urszula Zaleska-Dorobisz, Joanna Słonina, Violetta Sokolska, Aleksander Pawluś, Roman Badowski, Marek J Sąsiadek
PURPOSE: The aim of this retrospective study was to evaluate the usefulness of hydro-CT in the diagnosis of gastric tumors in comparison to endoscopy. MATERIAL AND METHODS: The study involved 40 patients with a diagnosis of gastric tumor established by histopathology who underwent endoscopy and conventional or low-dose hydro-CT. Hydro-CT images were retrospectively analyzed based on the consensus of two radiologists who were blinded to the endoscopy findings. The diagnostic accuracy of hydro-CT and endoscopy for the diagnosis of gastric tumors was evaluated using the results of the histopathological examination as the reference standard...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28654152/race-specific-molecular-alterations-correlate-with-differential-outcomes-for-black-and-white-endometrioid-endometrial-cancer-patients
#19
Nicholas W Bateman, Elizabeth A Dubil, Guisong Wang, Brian L Hood, Julie M Oliver, Tracy A Litzi, Glenn D Gist, David A Mitchell, Brian Blanton, Neil T Phippen, Chunqiao Tian, Christopher M Zahn, David E Cohn, Laura J Havrilesky, Andrew Berchuck, Craig D Shriver, Kathleen M Darcy, Chad A Hamilton, Thomas P Conrads, G Larry Maxwell
BACKGROUND: The objective of this study was to identify molecular alterations associated with disease outcomes for white and black patients with endometrioid endometrial cancer (EEC). METHODS: EEC samples from black (n = 17) and white patients (n = 13) were analyzed by proteomics (liquid chromatography-tandem mass spectrometry) and transcriptomics (RNA-seq). Coordinate alterations were validated with RNA-seq data from black (n = 49) and white patients (n = 216)...
June 27, 2017: Cancer
https://www.readbyqxmd.com/read/28620891/population-pharmacokinetic-modeling-of-olaratumab-an-anti-pdgfr%C3%AE-human-monoclonal-antibody-in-patients-with-advanced-and-or-metastatic-cancer
#20
Gary Mo, John R Baldwin, Debra Luffer-Atlas, Robert L Ilaria, Ilaria Conti, Michael Heathman, Damien M Cronier
BACKGROUND AND OBJECTIVES: Olaratumab is a recombinant human monoclonal antibody that binds to platelet-derived growth factor receptor-α (PDGFRα). In a randomized phase II study, olaratumab plus doxorubicin met its predefined primary endpoint for progression-free survival and achieved a highly significant improvement in overall survival versus doxorubicin alone in patients with advanced or metastatic soft tissue sarcoma (STS). In this study, we characterize the pharmacokinetics (PKs) of olaratumab in a cancer patient population...
June 15, 2017: Clinical Pharmacokinetics
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