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Colonic cancer

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https://www.readbyqxmd.com/read/28231692/risk-and-characteristics-of-postcolonoscopy-interval-colorectal-cancer-after-a-positive-fecal-test-a-nationwide-population-based-study-in-korea
#1
Chang Kyun Lee, Kui Son Choi, Chang Soo Eun, Dong-Il Park, Dong Soo Han, Minjoo Yoon, Mina Suh, Jae Kwan Jun
Purpose: Fecal tests remain a mainstay of population-based colorectal cancer (CRC) screening programs worldwide. However, data on interval CRC (iCRC) arising after follow-up colonoscopy of a positive fecal test are scarce. We conducted a nationwide population-based study to reveal the risk and characteristics of iCRC in this setting. Materials and Methods: We searched the National Cancer Screening Program for CRC database in Korea (2005-2010). Incidence of iCRC within the program was estimated, then Cox proportional-hazards regression analysis was performed to determine the independent predictors of iCRC...
February 24, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28231672/-analysis-on-cancer-deaths-and-cause-eliminated-life-expectancy-among-residents-of-tianjin-2015
#2
Z L Xu, H Zhang, D Z Wang, G D Song, C F Shen, S Zhang, Y Zhang, G H Jiang
Objective: To explore the causes of cancer deaths and cause-eliminated-life-expectancy among residents of Tianjin. Methods: Data from the death registry system of Tianjin residents in 2015 were collected and cancers were grouped according to the classification of Global Burden of Disease. Specific cancer crude death rate and cause eliminated life expectancy (CELE) were calculated. Results: In 2015, 17 641 Tianjin residents died of cancer, with the crude death rate as 171.79 per 100 thousand and the standardized rate according to the Chinese population in 2000 as 86...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28231524/discovery-of-novel-cdk8-inhibitors-using-multiple-crystal-structures-in-docking-based-virtual-screening
#3
Taijin Wang, Zhuang Yang, Yongguang Zhang, Wei Yan, Fang Wang, Linhong He, Yuanyuan Zhou, Lijuan Chen
The cyclin dependent kinase CDK8, along with Med12 and Med13, form the kinase module of the Mediator complex. CDK8 expression associates with the activation of β-catenin in colon and gastric cancers. Herein, we applied docking-based virtual screening (VS) using the multiple crystal structures to identify several potent CDK8 inhibitors. The appropriate use of multiple crystal structures obtained a better enrichment of CDK8 conformations to cope with the protein flexibility. Later on, the 2D similarity search was used to find the derivatives of the high inhibitory CDK8 inhibitors we discovered by VS...
February 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28231283/rapid-evolution-of-distinct-helicobacter-pylori-subpopulations-in-the-americas
#4
Kaisa Thorell, Koji Yahara, Elvire Berthenet, Daniel J Lawson, Jane Mikhail, Ikuko Kato, Alfonso Mendez, Cosmeri Rizzato, María Mercedes Bravo, Rumiko Suzuki, Yoshio Yamaoka, Javier Torres, Samuel K Sheppard, Daniel Falush
For the last 500 years, the Americas have been a melting pot both for genetically diverse humans and for the pathogenic and commensal organisms associated with them. One such organism is the stomach-dwelling bacterium Helicobacter pylori, which is highly prevalent in Latin America where it is a major current public health challenge because of its strong association with gastric cancer. By analyzing the genome sequence of H. pylori isolated in North, Central and South America, we found evidence for admixture between H...
February 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28230863/oncogenic-role-of-rab-escort-protein-1-through-egfr-and-stat3-pathway
#5
Un-Jung Yun, Jee Young Sung, Seog-Yun Park, Sang-Kyu Ye, Jaegal Shim, Jae-Seon Lee, Masahiko Hibi, Young-Ki Bae, Yong-Nyun Kim
Rab escort protein-1 (REP1) is linked to choroideremia (CHM), an X-linked degenerative disorder caused by mutations of the gene encoding REP1 (CHM). REP1 mutant zebrafish showed excessive cell death throughout the body, including the eyes, indicating that REP1 is critical for cell survival, a hallmark of cancer. In the present study, we found that REP1 is overexpressed in human tumor tissues from cervical, lung, and colorectal cancer patients, whereas it is expressed at relatively low levels in the normal tissue counterparts...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28230789/fungal-ribotoxins-a-review-of-potential-biotechnological-applications
#6
REVIEW
Miriam Olombrada, Rodrigo Lázaro-Gorines, Juan C López-Rodríguez, Álvaro Martínez-Del-Pozo, Mercedes Oñaderra, Moisés Maestro-López, Javier Lacadena, José G Gavilanes, Lucía García-Ortega
Fungi establish a complex network of biological interactions with other organisms in nature. In many cases, these involve the production of toxins for survival or colonization purposes. Among these toxins, ribotoxins stand out as promising candidates for their use in biotechnological applications. They constitute a group of highly specific extracellular ribonucleases that target a universally conserved sequence of RNA in the ribosome, the sarcin-ricin loop. The detailed molecular study of this family of toxic proteins over the past decades has highlighted their potential in applied research...
February 21, 2017: Toxins
https://www.readbyqxmd.com/read/28230172/evidence-for-critical-role-of-lymphocyte-cytosolic-protein-1-in-oral-cancer
#7
Nao Koide, Atsushi Kasamatsu, Yosuke Endo-Sakamoto, Sho Ishida, Toshihiro Shimizu, Yasushi Kimura, Isao Miyamoto, Shusaku Yoshimura, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
Lymphocyte cytosolic protein 1 (LCP1), a member of actin-binding protein of the plastin family, has been identified in several malignant tumors of non-hematopoietic sites, such as the colon, prostate, and breast. However, little is known about the roles of LCP1 in oral squamous cell carcinomas (OSCCs). This present study sought to clarify the clinical relevance of LCP1 in OSCCs and investigate possible clinical applications for treating OSCCs by regulating LCP1 expression. We found up-regulation of LCP1in OSCCs compared with normal counterparts using real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR), immunoblotting, and immunohistochemistry (P < 0...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230019/application-of-colon-interposition-among-the-esophageal-cancer-patients-with-partial-gastrectomy
#8
Qiuqiang Chen, Weimin Mao, Huanming Yu, Yixian Liang, Jiane Wang, Guoping Chen
BACKGROUND: Esophageal reconstruction with colon interposition is an alternative solution for the esophageal cancer patients who have partial gastrectomy. The aim of this study was to investigate the therapeutic effects of colon interposition among the esophageal carcinoma patients with partial gastrectomy. MATERIALS AND METHODS: Under institutional review board approval, 32 esophageal carcinoma patients with a history of partial gastrectomy were included in this study...
December 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28229932/csn5-jab1-suppresses-the-wnt-inhibitor-dkk1-in-colorectal-cancer-cells
#9
Sandra Jumpertz, Thomas Hennes, Yaw Asare, Anke K Schütz, Jürgen Bernhagen
The COP9 signalosome (CSN) is a multi-protein complex that is highly conserved in eukaryotes. Due to its regulatory impact on processes such as cell cycle, DNA damage response and apoptosis, the CSN is essential for mammalian cells. One of the best-studied functions of the CSN is the deNEDDylation of cullin-RING ligases (CRLs) via its catalytically active subunit CSN5/JAB1, thereby triggering the degradation of various target proteins. CSN5 was found to be overexpressed in many human cancer entities, including colon adenocarcinoma...
February 13, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28229535/enrichment-and-viability-inhibition-of-circulating-tumor-cells-on-a-dual-acid-responsive-composite-nanofiber-film
#10
Wenqian Wang, Yaya Cheng, Yansheng Li, Hao Zhou, Li-Ping Xu, Yongqiang Wen, Liang Zhao, Xueji Zhang
The formation and metastatic colonization of circulating tumor cells (CTCs) are responsible for the vast majority of cancer-related deaths. Over the last decade, drug delivery system (DDS) has been rapidly developed with nanotechnology arising, however, most of the reported tumor-targeting DDSs were just able to deliver drugs to the solid tumor cells but not CTCs. In here, a novel drug delivery system was constructed with composite nanofiber film to inhibit the viability of circulating tumor cells (CTCs). In this system, gold nanoparticles (Au NPs) were functionalized with doxorubicin (DOX) through an acid-responsive cleavable linker to get the Au-DOX NPs...
February 23, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28229171/potential-biomarkers-associated-with-oxidative-stress-for-risk-assessment-of-colorectal-cancer
#11
REVIEW
Paramita Mandal
Cells are continuously threatened by the damage caused by reactive oxygen/nitrogen species (ROS/RNS), which are produced during physiological oxygen metabolism. In our review, we will summarize the latest reports on the role of oxidative stress and oxidative stress-induced signaling pathways in the etiology of colorectal cancer. The differences in ROS generation may influence the levels of oxidized proteins, lipids, and DNA damage, thus contributing to the higher susceptibility of colon. Reactive species (RS) of various types are formed and are powerful oxidizing agents, capable of damaging DNA and other biomolecules...
February 22, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28229097/pediatric-hypovitaminosis-d-molecular-perspectives-and-clinical-implications
#12
Rafiu Ariganjoye
Vitamin D, a secosteroid, is essential for the development and maintenance of healthy bone in both the adult and pediatric populations. Low level of 25-hydroxy vitamin D (25-(OH)-D) is highly prevalent in children worldwide and has been linked to various adverse health outcomes including rickets, osteomalacia, osteomalacic myopathy, sarcopenia, and weakness, growth retardation, hypocalcemia, seizure and tetany, autism, cardiovascular diseases, diabetes mellitus, cancers (prostate, colon, breast), infectious diseases (viral, tuberculosis), and autoimmune diseases, such as multiple sclerosis and Hashimoto's thyroiditis...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28229027/risk-analysis-of-colorectal-cancer-incidence-by-gene-expression-analysis
#13
Wei-Chuan Shangkuan, Hung-Che Lin, Yu-Tien Chang, Chen-En Jian, Hueng-Chuen Fan, Kang-Hua Chen, Ya-Fang Liu, Huan-Ming Hsu, Hsiu-Ling Chou, Chung-Tay Yao, Chi-Ming Chu, Sui-Lung Su, Chi-Wen Chang
BACKGROUND: Colorectal cancer (CRC) is one of the leading cancers worldwide. Several studies have performed microarray data analyses for cancer classification and prognostic analyses. Microarray assays also enable the identification of gene signatures for molecular characterization and treatment prediction. OBJECTIVE: Microarray gene expression data from the online Gene Expression Omnibus (GEO) database were used to to distinguish colorectal cancer from normal colon tissue samples...
2017: PeerJ
https://www.readbyqxmd.com/read/28228842/worldwide-malaria-incidence-and-cancer-mortality-are-inversely-associated
#14
Li Qin, Changzhong Chen, Lili Chen, Ran Xue, Ming Ou-Yang, Chengzhi Zhou, Siting Zhao, Zhengxiang He, Yu Xia, Jianxing He, Pinghua Liu, Nanshan Zhong, Xiaoping Chen
BACKGROUND: Investigations on the effects of malaria infection on cancer mortality are limited except for the incidence of Burkitt's lymphoma (BL) in African children. Our previous murine lung cancer model study demonstrated that malaria infection significantly inhibited tumor growth and prolonged the life span of tumor-bearing mice. This study aims to assess the possible associations between malaria incidence and human cancer mortality. METHODS: We compiled data on worldwide malaria incidence and age-standardized mortality related to 30 types of cancer in 56 countries for the period 1955-2008, and analyzed their longitudinal correlations by a generalized additive mixed model (GAMM), adjusted for a nonlinear year effect and potential confounders such as country's income levels, life expectancies and geographical locations...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28228616/transcriptional-mechanism-of-the-%C3%AE-4-galactosyltransferase-4-gene-in-sw480-human-colon-cancer-cell-line
#15
Atena Sugiyama, Naomichi Fukushima, Takeshi Sato
Increased expression of β4-galactosyltransferase (β4GalT) 4 has been shown to be associated with metastatic ability and poor prognosis of colon cancer cells. To solve the up-regulation of β4GalT4 in colon cancer cells at transcriptional level, we examined the transcriptional mechanism of the β4GalT4 gene in SW480 human colon cancer cell line. Luciferase assay using the deletion constructs revealed that the promoter activity of the β4GalT4 gene is associated with the region between nucleotides -122 and -55 relative to the transcriptional start site, which contained one Sp1-binding site...
February 23, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28228598/beware-are-bacteria-raising-your-oxidative-stress
#16
Purna Kashyap
Peptostreptococcus anaerobius, enriched in patients with colon cancer, induces cellular proliferation and dysplasia by toll-like receptor (TLR) 2- and TLR4-dependent increase in oxidative stress and cholesterol biosynthesis.
February 22, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28228152/cardiac-metastasis-from-colon-cancer-effectively-treated-with-5-fluorouracil-leucovorin-and-oxaliplatin-modified-folfox6-plus-panitumumab-a-case-report
#17
Yoshiki Tsujii, Yoshito Hayashi, Akira Maekawa, Tetsuji Fujinaga, Kengo Nagai, Shunsuke Yoshii, Akihiko Sakatani, Satoshi Hiyama, Shinichiro Shinzaki, Hideki Iijima, Tetsuo Takehara
BACKGROUND: Cardiac metastasis from colorectal cancer is rare. There is little evidence supporting the effectiveness of chemotherapy, and standard therapy for metastatic cardiac tumors has not been established. CASE PRESENTATION: A 76-year-old woman presented with a right ventricle tumor that was detected incidentally on screening cardiac ultrasonography. The initial computed tomography (CT) scan showed the cardiac tumor, which was approximately 40 mm in size, and multiple pulmonary nodules...
February 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28226355/-role-of-diagnostic-laparoscopy-in-the-treatment-plan-of-gastric-cancer
#18
Haojie Li, Qi Zhang, Ling Chen, Lingqiang Min, Xuefei Wang, Fenglin Liu, Yihong Sun
OBJECTIVE: To assess the clinical value of the diagnostic laparoscopy in choosing treatment strategies for patients with gastric cancer. METHODS: Retrospective analysis was performed on clinical and pathological data collected from 2 023 patients undergoing gastric cancer surgery in the Zhongshan Hospital of Fudan University from 2009 to 2014. All the patients were diagnosed as gastric cancer by endoscopic biopsy and staged by imaging examination before surgery...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28226348/-the-key-points-of-prevention-for-special-surgical-complications-after-radical-operation-of-gastric-cancer
#19
Hao Xu, Weizhi Wang, Panyuan Li, Diancai Zhang, Li Yang, Zekuan Xu
Incidence of gastric cancer is high in China and standard radical operation is currently the main treatment for gastric cancer. Postoperative complications, especially some special complications, can directly affect the prognosis of patients, even result in the increase of mortality. But the incidences of these special complications are low, so these complications are often misdiagnosed and delayed in treatment owing to insufficient recognition of medical staff. These special complications include (1) Peterson hernia: It is an abdominal hernia developed in the space between Roux loop and transverse colon mesentery after Roux-Y reconstruction of digestive tract...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28226313/risk-of-cancer-in-patients-with-autoimmune-pancreatitis-a-single-center-experience-from-germany
#20
Alexander Schneider, Michael Hirth, Markus Münch, Christel Weiss, J Matthias Löhr, Matthias P Ebert, Roland H Pfützer
BACKGROUND/AIMS: Autoimmune pancreatitis (AIP) has been associated with an increased risk of malignant diseases. We aimed to describe the incidence of malignant diseases in patients with AIP compared to the general population and to characterize the clinical presentation of these patients. METHODS: We retrospectively analyzed data from 28 patients with AIP presenting to the clinic (periods 1998 until 2010, 2012 until September 2015). We retrieved the expected cancer incidence of the general population from the German cancer registry...
February 23, 2017: Digestion
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