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https://www.readbyqxmd.com/read/28087975/screening-and-treating-helicobacter-pylori-infection-for-gastric-cancer-prevention-on-the-population-level
#1
REVIEW
Yi-Chia Lee, Jaw-Town Lin
Helicobacter pylori infection is the major cause of gastric cancer, and removal of H. pylori infection from a population could theoretically decrease the number of cases by about 89%. However, in real-life settings, few studies have reported the effect of screening and treating this pathogen in population-based programs. This is mainly because of the lack of an adequate infrastructure for delivery of systematic screening services to asymptomatic individuals, the lack of standardization to ensure that each subject receives the correct diagnostic testing and antibiotic treatment, and limited resources...
January 14, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28087343/calcium-remodeling-in-colorectal-cancer
#2
REVIEW
Carlos Villalobos, Diego Sobradillo, Miriam Hernández-Morales, Lucía Núñez
: Colorectal cancer (CRC) is the third most frequent form of cancer and the fourth leading cause of cancer-related death in the world. Basic and clinical data indicate that aspirin and other non-steroidal anti-inflammatory drugs (NSAIDs) may prevent colon cancer but mechanisms remain unknown. Aspirin metabolite salicylate and other NSAIDs may inhibit tumor cell growth acting on store-operated Ca(2+) entry (SOCE), suggesting an important role for this pathway in CRC. Consistently, SOCE is emerging as a novel player in different forms of cancer, including CRC...
January 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28079007/novel-therapies-targeting-cardioprotection-and-regeneration
#3
Valeria Garrido, Evelyn Mendoza-Torres, Jaime A Riquelme, Ariel Díaz, Marcela Pizarro, Mario Bustamante, Myra N Chavez, María Paz Ocaranza, Rosemarie Mellado, Ramon Corbalan, Miguel L Allende, Sergio Lavandero
Cardiovascular disease is the leading cause of death worldwide. The heart is susceptible to pathologies that impact the myocardium directly, such myocardial infarction and consequent heart failure, as well as conditions with indirect cardiac effects, such cancer treatment-related cardiotoxicity. As the contractile cells of the heart, cardiomyocytes are essential for normal cardiac function. Various stress stimuli may result in transient damage or cell death in cardiomyocytes through apoptosis, necrosis or maladaptive autophagy...
January 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28077434/transfer-of-allogeneic-cd4-t-cells-rescues-cd8-t-cells-in-anti-pd-l1-resistant-tumors-leading-to-tumor-eradication
#4
Ainhoa Arina, Theodore G Karrison, Eva Galka, Karin Schreiber, Ralph R Weichselbaum, Hans Schreiber
Adoptively transferred CD8(+) T cells can stabilize the size of solid tumors over long periods of time by exclusively recognizing antigen cross-presented on tumor stroma. However, these tumors eventually escape T cell-mediated growth control. The aim of this study was to eradicate such persistent cancers. In our model, the SIYRYYGL antigen is expressed by cancer cells that lack the MHC-I molecule K(b) needed for direct presentation, but the antigen is picked up and cross-presented by tumor stroma. A single injection of antigen-specific 2C CD8(+) T cells caused long-term inhibition of tumor growth, but without further intervention, tumors started to progress after approximately 3 months...
January 11, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28076779/transcription-dynamics-prevent-rna-mediated-genomic-instability-through-srpk2-dependent-ddx23-phosphorylation
#5
Sreerama Chaitanya Sridhara, Sílvia Carvalho, Ana Rita Grosso, Lina Marcela Gallego-Paez, Maria Carmo-Fonseca, Sérgio Fernandes de Almeida
Genomic instability is frequently caused by nucleic acid structures termed R-loops that are formed during transcription. Despite their harmful potential, mechanisms that sense, signal, and suppress these structures remain elusive. Here, we report that oscillations in transcription dynamics are a major sensor of R-loops. We show that pausing of RNA polymerase II (RNA Pol II) initiates a signaling cascade whereby the serine/arginine protein kinase 2 (SRPK2) phosphorylates the DDX23 helicase, culminating in the suppression of R-loops...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28076321/secretion-modification-region-derived-peptide-blocks-exosome-release-and-mediates-cell-cycle-arrest-in-breast-cancer-cells
#6
Ming-Bo Huang, Ruben R Gonzalez, James Lillard, Vincent C Bond
PURPOSE: Discovery and development of a novel anticancer PEG-SMR-Clu peptide to prevent breast cancer metastasis. How breast cancer cells and primary mammary epithelial cells interact and communicate with each other to promote tumorigenesis and how to prevent tumor metastasis has long been a concern of researchers. Cancer cells secrete exosomes containing proteins and RNA. These factors can influence tumor development by directly targeting cancer cells and tumor stroma. In this study, we determined the effects of a peptide as an inhibitor of exosome secretion on breast tumors...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28075249/cost-effectiveness-analysis-of-as04-adjuvanted-human-papillomavirus-16-18-vaccine-compared-with-human-papillomavirus-6-11-16-18-vaccine-in-the-philippines-with-the-new-2-dose-schedule
#7
Maria Julieta Germar, Carrie Purugganan, Ma Socorro Bernardino, Benjamin Cuenca, Y-Chen Chen, Xiao Li, Georges Van Kriekinge, I-Heng Lee
Cervical cancer (CC) is the second leading cause of cancer death among Filipino women. Human papillomavirus (HPV) vaccination protects against CC. Two vaccines (AS04-HPV-16/18 and 4vHPV) are approved in the Philippines; they were originally developed for a 3-dose (3 D) administration and have recently been approved in a 2-dose schedule (2 D). This study aims to evaluate the cost-effectiveness and budget impact of HPV vaccination of 13-year-old Filipino girls, in addition to current screening, in the new 2 D schedule...
January 11, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28074341/gap-junction-protein-connexin43-deregulation-contributes-to-bladder-carcinogenesis-via-targeting-mapk-pathway
#8
Xiao-Lin Ai, Qiang Chi, Yu Qiu, Hong-Yang Li, Dong-Jie Li, Jia-Xu Wang, Zhi-Yong Wang
High expression of connexins was found in a variety of cancers, but their role is still controversial. We investigated whether connexin43 (Cx43) contributed to bladder carcinogenesis through MAPK activation. In this study, we found that Cx43 expression was significantly increased in bladder cancer tissues and cell line. Overexpression of Cx43 in bladder cancer 5637 cells increased cell proliferation, promoted cell cycle progression, and inhibited apoptosis. Western blot showed that JNK and ERK pathways were dramatically activated in Cx43-overexpressed cells...
January 10, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28070818/entangling-relation-of-micro-rna-let7-mirna-200-and-mirna-125-with-various-cancers
#9
REVIEW
Nosheen Masood, Azra Yasmin
Involvement of micro RNAs (miRNA) is currently the focus for cancer studies as they effect the post transcriptional expression of different genes. Let-7 family is among the firstly discovered miRNAs that play important role in cell proliferation and dysregulation leading to cell based diseases including cancer. Another family, miRNA-200 prevents transformation of cell to malignant form and tumor formation by interacting with epidermal mesenchymal transition (EMT). Similarly miRNA-125 controls apoptosis and proliferation by affecting multiple genes involved in transcription, immunological defense, resistance against viral and bacterial infections that ultimately leads to cell proliferation, metastasis and finally cancer...
January 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28067588/health-benefits-of-fiber-fermentation
#10
Wendy J Dahl, Nicole C Agro, Åsa M Eliasson, Kaley L Mialki, Joseph D Olivera, Carley T Rusch, Carly N Young
Although fiber is well recognized for its effect on laxation, increasing evidence supports the role of fiber in the prevention and treatment of chronic disease. The aim of this review is to provide an overview of the health benefits of fiber and its fermentation, and describe how the products of fermentation may influence disease risk and treatment. Higher fiber intakes are associated with decreased risk of cardiovascular disease, type 2 diabetes, and some forms of cancer. Fiber may also have a role in lowering blood pressure and in preventing obesity by limiting weight gain...
January 9, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28065950/awareness-about-human-papillomavirus-as-a-cause-of-cervical-cancer-and-its-prevention-in-the-undergraduate-female-students-of-karachi
#11
Ramsha Zaheer, Nabiha Alam, Kinza Chaudary Faqir Hussain, Anam Asif Herekar, Hira Nasir, Shereen Zulfiqar Bhutta
OBJECTIVE: To determine the rate of acceptance of human papillomavirus vaccine for prevention of cervical cancer, and to identify causes of its low acceptance and means of encouraging its uptake. METHODS: This cross-sectional study was conducted at five different universities of Karachi, from July to December 2011, and comprised female undergraduate students. The participants, aged between 17-26 years, were in their first four years of undergraduate studies, and were selected from five universities...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28065391/-cancer-prevention-in-france-implication-of-health-professionals
#12
REVIEW
Andrea Lasserre, Julie Gaillot, Antoine Deutsch, Claire Chauvet, Dominique Bessette, Raphaëlle Ancellin
Almost 40% of cancers are attributable to preventable cancer risk factors related to behavior. Health professionals must take into account the respective weight of the different causes of cancer to enforce effective cancer prevention. Their involvement is needed on several levels. In primary prevention, not only for vaccinations, detection and support the withdrawal of addiction, but also by a greater consideration in their patients of all cancer risk behavioral factors. This involvement is essential in the care and monitoring of patients with cancer...
January 5, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28064553/granulocyte-colony-stimulating-factors-in-the-prevention-of-febrile-neutropenia-review-of-cost-effectiveness-models
#13
Kelly Fust, Anju Parthan, Michael Maschio, Qing Gu, Xiaoyan Li, Gary H Lyman, Spiros Tzivelekis, Guillermo Villa, Milton C Weinstein
We reviewed the evolution of the methods used in cost-effectiveness analyses of granulocyte colony-stimulating factors (G-CSFs) in the primary and secondary prevention of febrile neutropenia (FN) in patients receiving myelosuppressive cancer chemotherapy. Areas covered: FN is a side effect of myelosuppressive chemotherapy associated with significant morbidity, mortality, and costs. The risk of FN may depend on the drugs used within a chemotherapy regimen, and an FN event may cause chemotherapy dose reductions or delays in subsequent cycles...
January 9, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/28064440/dietary-fibre-for-the-prevention-of-recurrent-colorectal-adenomas-and-carcinomas
#14
REVIEW
Yibo Yao, Tao Suo, Roland Andersson, Yongqing Cao, Chen Wang, Jingen Lu, Evelyne Chui
BACKGROUND: This is an update of the Cochrane review published in 2002.Colorectal cancer (CRC) is a major cause of morbidity and mortality in industrialised countries. Experimental evidence has supported the hypothesis that dietary fibre may protect against the development of CRC, although epidemiologic data have been inconclusive. OBJECTIVES: To assess the effect of dietary fibre on the recurrence of colorectal adenomatous polyps in people with a known history of adenomatous polyps and on the incidence of CRC compared to placebo...
January 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28063767/peroxisomal-dysfunction-in-age-related-diseases
#15
REVIEW
Cynthia M Cipolla, Irfan J Lodhi
Peroxisomes carry out many key functions related to lipid and reactive oxygen species (ROS) metabolism. The fundamental importance of peroxisomes for health in humans is underscored by the existence of devastating genetic disorders caused by impaired peroxisomal function or lack of peroxisomes. Emerging studies suggest that peroxisomal function may also be altered with aging and contribute to the pathogenesis of a variety of diseases, including diabetes and its related complications, neurodegenerative disorders, and cancer...
January 4, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28063168/phytochemicals-for-the-prevention-of-photocarcinogenesis
#16
Mary Katherine Montes de Oca, Ross L Pearlman, Sarah F McClees, Rebecca Strickland, Farrukh Afaq
Ultraviolet (UV) exposure has an array of damaging effects and is the main cause of skin cancer in humans. Non-melanoma skin cancer (NMSC), including basal cell carcinoma and squamous cell carcinoma, is the most common type of cancer. Incidence of NMSC has increased due to greater UV radiation, increased life expectancy, and other changes in lifestyle; the annual cost of skin cancer treatment in the United States has increased concurrently to around eight billion dollars. Because of these trends, novel approaches to skin cancer prevention have become an important area of research to decrease skin cancer morbidity and defray the costs associated with treatment...
January 7, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28060743/2017-update-on-the-relationship-between-diabetes-and-colorectal-cancer-epidemiology-potential-molecular-mechanisms-and-therapeutic-implications
#17
REVIEW
Nieves González, Isabel Prieto, Laura Del Puerto-Nevado, Sergio Portal-Nuñez, Juan Antonio Ardura, Marta Corton, Beatriz Fernández-Fernández, Oscar Aguilera, Carmen Gomez-Guerrero, Sebastián Mas, Juan Antonio Moreno, Marta Ruiz-Ortega, Ana Belen Sanz, Maria Dolores Sanchez-Niño, Federico Rojo, Fernando Vivanco, Pedro Esbrit, Carmen Ayuso, Gloria Alvarez-Llamas, Jesús Egido, Jesús García-Foncillas, Alberto Ortiz, Diabetes Cancer Connect Consortium
Worldwide deaths from diabetes mellitus (DM) and colorectal cancer increased by 90% and 57%, respectively, over the past 20 years. The risk of colorectal cancer was estimated to be 27% higher in patients with type 2 DM than in non-diabetic controls. However, there are potential confounders, information from lower income countries is scarce, across the globe there is no correlation between DM prevalence and colorectal cancer incidence and the association has evolved over time, suggesting the impact of additional environmental factors...
January 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28059966/readmission-after-ileostomy-creation-retrospective-review-of-a-common-and-significant-event
#18
Daniel R Fish, Carol A Mancuso, Julio E Garcia-Aguilar, Sang W Lee, Garrett M Nash, Toyooki Sonoda, Mary E Charlson, Larissa K Temple
OBJECTIVE: To evaluate causes and predictors of readmission after new ileostomy creation. BACKGROUND: New ileostomates have been reported to have higher readmission rates compared with other surgical patients, but data on predictors are limited. METHODS: A total of 1114 records at 2 associated hospitals were reviewed to identify adults undergoing their first ileostomy. Primary outcome was readmission within 60 days of surgery. Multiple logistic regression was used to identify independent predictors; area under the receiver-operator characteristic curves (AUC) were used to evaluate age-stratified models in secondary analysis...
February 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28059042/alkaloids-as-cyclooxygenase-inhibitors-in-anticancer-drug-discovery
#19
Muhammad Ali Hashmi, Afsar Khan, Umar Farooq, Sehroon Khan
Cancer is the leading cause of death worldwide and anticancer drug discovery is a very hot area of research at present. There are various factors which control and affect cancer, out of which enzymes like cyclooxygenase-2 (COX-2) play a vital role in the growth of tumor cells. Inhibition of this enzyme is a very useful target for the prevention of various types of cancers. Alkaloids are a diverse group of naturally occurring compounds which have shown great COX-2 inhibitory activity both in vitro and in vivo...
January 5, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28056089/helicobacter-pylori-promote-b7-h1-expression-by-suppressing-mir-152-and-mir-200b-in-gastric-cancer-cells
#20
Gengchen Xie, Wei Li, Ruidong Li, Ke Wu, Ende Zhao, Yu Zhang, Peng Zhang, Liang Shi, Di Wang, Yuping Yin, Rui Deng, Kaixiong Tao
The most common cause of gastric cancer is infection with helicobacter pylori (HP), but the associated molecular mechanism is not well understood. In the present study, we found a marked increase in the expression of B7-H1, a member of the B7 co-stimulatory family of molecules that bind to programmed death-1 (PD-1) and play a critical immunoregulatory role in the cell-mediated immune response, in HP-positive gastric cancer tissue. Infection of cultured gastric cancer cells with HP promoted B7-H1 expression and inhibited miR-152 and miR-200b expression...
2017: PloS One
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