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https://www.readbyqxmd.com/read/28107765/lower-adenoma-miss-rate-with-fuse-vs-conventional-colonoscopy-with-proximal-retroflexion-a-randomized-back-to-back-trial
#1
Ioannis S Papanikolaou, Periklis Apostolopoulos, Georgios Tziatzios, Erasmia Vlachou, Athanasios D Sioulas, Dimitrios Polymeros, Andreas Karameris, Ioannis Panayiotides, Georgios Alexandrakis, George D Dimitriadis, Konstantinos Triantafyllou
Background and study aims Full-spectrum colonoscopy (FSC) promises to increase adenoma detection by providing a wider field of view. The aim of this study was to compare adenoma miss rates of FSC with those of conventional colonoscopy complemented by right-colon re-examination using scope retroflexion (CC/R). Patients and methods At two tertiary endoscopy facilities, patients who were scheduled for colonoscopy for the assessment of symptoms or for colorectal cancer screening/surveillance were randomized (1:1) to undergo same-day, back-to-back colonoscopies (FSC or CC/R first), performed by one of five endoscopists who had documented adenoma detection rates > 35 %...
January 20, 2017: Endoscopy
https://www.readbyqxmd.com/read/28107755/optimal-glycemic-target-level-for-colon-cancer-patients-with-diabetes
#2
Shin Jun Lee, Jae Hyun Kim, Seun Ja Park, So Young Ock, Su Kyoung Kwon, Young Sik Choi, Bu Kyung Kim
AIMS: The aim of this study was to evaluate the differences in mortality among colon cancer patients with or without diabetes and to determine optimal glycemic target level for colon cancer patients with diabetes. METHODS: A total of 741 patients with colon cancer between April 1999 and December 2010 were reviewed. The non-diabetes group had a fasting plasma glucose <126mg/dL, and the diabetes group had a fasting plasma glucose ⩾126mg/dL. Patients with diabetes were further divided based on glycemic control into either the uncontrolled subgroup (HbA1c ⩾8%) or the well-controlled subgroup (HbA1c <8%)...
December 23, 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28107731/natural-amelioration-of-zinc-oxide-nanoparticle-toxicity-in-fenugreek%C3%A2-trigonella-foenum-gracum-by-arbuscular-mycorrhizal-glomus-intraradices-secretion-of-glomalin
#3
Narges Ghasemi Siani, Seyfollah Fallah, Lok Raj Pokhrel, Ali Rostamnejadi
Owing to rising production and use of engineered nanoparticles (ENPs) in the myriad of consumer applications, ENPs are being released into the environment where their potential fate and effects have remained unclear. With naturally occurring arbuscular mycorrhizal fungus (AMF; Glomus intraradices) in soils, their influence (positive or negative) on ENPs toxicity in plants is not well documented. Herein, we investigated potential influence of AMF on the growth and development in fenugreek (Trigonella foenum-graecum) under varied Zinc oxide nanoparticles (ZnONPs) treatments (0, 125, 250, 375 and 500 μg g(-1))...
January 3, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28107678/nobiletin-and-its-colonic-metabolites-suppress-colitis-associated-colon-carcinogenesis-by-down-regulating-inos-inducing-antioxidative-enzymes-and-arresting-cell-cycle-progression
#4
Xian Wu, Mingyue Song, Zili Gao, Yue Sun, Minqi Wang, Fang Li, Jinkai Zheng, Hang Xiao
Nobiletin (NOB) is a major citrus polymethoxyflavone (PMF) with various beneficial biological activities. We reported previously that dietary NOB significantly inhibited colitis-associated colon carcinogenesis in azoxymethane (AOM)/dextran sulfate sodium (DSS)-treated mice, and the chemopreventive effects were associated with NOB metabolites found in the mouse colonic tissues. In this study, to better understand the role of colonic metabolites of NOB, we determined the anti-inflammation and anticancer effects of a mixture of NOB and its major metabolites (NOB-Met) at the concentrations equivalent to those found in colonic tissues of NOB-fed mice...
January 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28107588/mitochondrial-uncoupler-exerts-a-synthetic-lethal-effect-against-%C3%AE-catenin-mutant-tumor-cells
#5
Yuki Shikata, Masaki Kiga, Yushi Futamura, Harumi Aono, Hiroyuki Inoue, Manabu Kawada, Hiroyuki Osada, Masaya Imoto
The wingless/int-1 (Wnt) signal transduction pathway plays a central role in cell proliferation, survival, differentiation and apoptosis. When β-catenin: a component of the Wnt pathway, is mutated into an active form, cell growth signaling is hyperactive and drives oncogenesis. As β-catenin is mutated in a wide variety of tumors, including up to 10% of all sporadic colon carcinomas and 20% of hepatocellular carcinomas, it has been considered a promising target for therapeutic interventions. Therefore, we screened an in-house natural product library for compounds that exhibited synthetic lethality towards β-catenin mutations and isolated nonactin, an antibiotic mitochondrial uncoupler, as a hit compound...
January 20, 2017: Cancer Science
https://www.readbyqxmd.com/read/28107571/increased-pd-l1-expression-in-breast-and-colon-cancer-stem-cells
#6
Yanheng Wu, Mingshui Chen, Peihong Wu, Chen Chen, Zhi Ping Xu, Wenyi Gu
Here we report the expression of programmed cell death ligand 1/2 (PD-L1/L2) in breast and colon cancer stem cells (CSCs). The stemness of these cells was confirmed by their surface markers. Using flow cytometry analysis we demonstrated that PD-L1 expression was higher in CSCs of both cancers compared to non-stem like cancer cells. Consistent with this, detection of cellular PD-L1 proteins by Western blot assay also showed increased PD-L1 protein in CSCs. In contrast, only trance amounts of PD-L2 were detected in CSCs of both cancers...
January 20, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28107533/improvement-of-therapeutic-efficacy-of-oral-immunotherapy-in-combination-with-regulatory-t-cell-inducer-kakkonto-in-a-murine-food-allergy-model
#7
Yuka Nagata, Takeshi Yamamoto, Michie Hayashi, Shusaku Hayashi, Makoto Kadowaki
Oral immunotherapy (OIT) has been considered a promising approach for food allergies (FAs). However, the current OIT strategy is limited in terms of the long-term efficacy and safety. We have previously demonstrated that kakkonto, a traditional Japanese herbal medicine, suppresses the occurrence of allergic symptoms in a murine model of ovalbumin (OVA)-induced FA, which is attributed to the induction of the Foxp3+ CD4+ regulatory T cells. In this study, we established an OIT model using the FA mice with already established allergic symptoms and determined whether kakkonto could improve the efficacy of OIT...
2017: PloS One
https://www.readbyqxmd.com/read/28107412/nasal-carriage-of-staphylococcus-aureus-among-children-in-the-ashanti-region-of-ghana
#8
Daniel Eibach, Michael Nagel, Benedikt Hogan, Clinton Azuure, Ralf Krumkamp, Denise Dekker, Mike Gajdiss, Melanie Brunke, Nimako Sarpong, Ellis Owusu-Dabo, Jürgen May
BACKGROUND: Nasal carriage with Staphylococcus aureus is a common risk factor for invasive infections, indicating the necessity to monitor prevalent strains, particularly in the vulnerable paediatric population. This surveillance study aims to identify carriage rates, subtypes, antimicrobial susceptibilities and virulence markers of nasal S. aureus isolates collected from children living in the Ashanti region of Ghana. METHODS: Nasal swabs were obtained from children < 15 years of age on admission to the Agogo Presbyterian Hospital between April 2014 and January 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28107195/a-new-hdac-inhibitor-cinnamoylphenazine-shows-antitumor-activity-in-association-with-intensive-macropinocytosis
#9
Bing-Yan Zhu, Bo-Yang Shang, Yue Du, Yi Li, Liang Li, Xian-Dong Xu, Yong-Su Zhen
Previous studies have shown that intensive macropinocytosis occurs in cancer cells and neutral red (NR) is noted for its capability to enter into the cell massively through a process mimetic to macropinocytosis. In addition, trans-cinnamic acid (tCA) has been found to be an inhibitor of histone deacetylase (HDAC). In the present study, cinnamoylphenazine (CA-PZ) that consists of NR and tCA moieties was synthesized and evaluated. As shown, CA-PZ massively entered into colon carcinoma HT-29 cells and pancreatic carcinoma MIA PaCa-2 cells and this entry was blocked by 5-(N-ethyl-N-isopropyl) amiloride (EIPA, an inhibitor of macropinocytosis), indicating a macropinocytosis-mediated uptake...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107095/chibby1-knockdown-promotes-mesenchymal-to-epithelial-transition-like-changes
#10
Victoria Fischer, Michael Wong, Feng-Qian Li, Ken-Ichi Takemaru
Chibby1 (Cby1) was originally isolated as a binding partner for β-catenin, a dual function protein in cell-cell adhesion and in canonical Wnt signaling. The canonical Wnt/β-catenin pathway is dysregulated in various diseases including cancer, most notably of the gastrointestinal origin. To investigate the role of Cby1 in colorectal tumorigenesis, we generated stable Cby1-knockdown (KD) SW480 colon cancer cells. Unexpectedly, we found that Cby1 KD induces mesenchymal-to-epithelial transition (MET)-like changes in SW480 as well as in HEK293 cells...
January 20, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28107082/mechanistic-insight-of-probiotics-derived-anticancer-pharmaceuticals-a-road-forward-for-cancer-therapeutics
#11
Raman Kumar, Suman Dhanda
Probiotics are living organisms that confer health benefits when administered in adequate amounts. Probiotics are continuously being explored for their different health beneficiary activities. Anticancer activity is one of the most important benefits both from a preventive and therapeutic point of view. Though not many studies have been conducted to date in this area, a number suggest using laboratory animal models and different cell lines that there may be a mechanistic basis for the anticancer effects of probiotics and require more scientific justification and clinical trials...
January 20, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28106907/subsequent-malignancies-among-long-term-survivors-of-hodgkin-lymphoma-and-non-hodgkin-lymphoma-a-pooled-analysis-of-german-cancer-registry-data-1990-2012
#12
Nadia Baras, Stefan Dahm, Jörg Haberland, Martin Janz, Katharina Emrich, Klaus Kraywinkel, Abdulgabar Salama
The increased risk of subsequent primary malignancies (SPM) in survivors of adult-onset Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL) remains a challenging clinical problem worldwide. The German cancer registry database, pooled from 14 federal states, was used to calculate the standardized incidence ratio (SIR) and excess absolute risk (EAR) of SPM in 128 587 patients registered with first primary HL/NHL between 1990 and 2012. Conversely, SIRs were also calculated for a subsequent HL/NHL following other first cancers...
January 20, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#13
REVIEW
Inés Mármol, Cristina Sánchez-de-Diego, Alberto Pradilla Dieste, Elena Cerrada, María Jesús Rodriguez Yoldi
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%-5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106773/determinants-of-serum-glycerophospholipid-fatty-acids-in-cystic-fibrosis
#14
Sławomira Drzymała-Czyż, Patrycja Krzyżanowska, Berthold Koletzko, Jan Nowak, Anna Miśkiewicz-Chotnicka, Jerzy A Moczko, Aleksandra Lisowska, Jarosław Walkowiak
The etiology of altered blood fatty acid (FA) composition in cystic fibrosis (CF) is understood only partially. We aimed to investigate the determinants of serum glycerophospholipids' FAs in CF with regard to the highest number of FAs and in the largest cohort to date. The study comprised 172 CF patients and 30 healthy subjects (HS). We assessed Fas' profile (gas chromatography/mass spectrometry), CF transmembrane conductance regulator (CFTR) genotype, spirometry, fecal elastase-1, body height and weight Z-scores, liver disease, diabetes and colonization by Pseudomonas aeruginosa...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106752/the-promoting-effect-of-the-extracellular-matrix-peptide-tniiia2-derived-from-tenascin-c-in-colon-cancer-cell-infiltration
#15
Hideo Suzuki, Manabu Sasada, Sadahiro Kamiya, Yuka Ito, Hikaru Watanabe, Yuko Okada, Kazuma Ishibashi, Takuya Iyoda, Akinori Yanaka, Fumio Fukai
The extracellular matrix (ECM) molecule tenascin C (TNC) is known to be highly expressed under various pathological conditions such as inflammation and cancer. It has been reported that the expression of TNC is correlated with the malignant potential of cancer. In our laboratory, it was found that the peptide derived from the alternative splicing domain A2 in TNC, termed TNIIIA2, has been shown to influence a variety of cellular processes, such as survival, proliferation, migration, and differentiation. In this study, we investigated the effect of TNC/TNIIIA2 on the invasion and metastasis of colon cancer cells, Colon26-M3...
January 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106614/study-of-intrapatient-variability-and-reproducibility-of-quantitative-tumor-perfusion-parameters-evaluated-with-dynamic-contrast-enhanced-ultrasonography
#16
Nathalie Lassau, Bénédicte Coiffier, Laura Faivre, Baya Benatsou, Sophie Bidault, Elizabeth Girard, Bernard Asselain, Stéphanie Pitre-Champagnat, Serge Koscielny
OBJECTIVES: Dynamic contrast-enhanced (DCE) ultrasonography (US) is a functional imaging technique enabling quantitative assessment of solid tumor perfusion in metastatic patients treated with antiangiogenic therapies.The objective of this prospective single-center study was to evaluate in real-life conditions (in routine clinical practice) the intrapatient variability and reproducibility of DCE-US parameters. MATERIALS AND METHODS: Each patient provided written informed consent and had 2 DCE-US examinations (preprandial and postprandial) at baseline, day 15, and 1 month after treatment initiation...
January 18, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28106284/oxidative-stress-promotes-doxorubicin-induced-pgp-and-bcrp-expression-in-colon-cancer-cells-under-hypoxic-conditions
#17
Martha L Pinzón-Daza, Yenith Cuellar-Saenz, Francisco Nualart, Alejandro Ondo-Mendez, Lilia Del Riesgo, Fabio Castillo-Rivera, Ruth Garzón
P-glycoprotein (Pgp) and breast cancer resistance protein (BCRP) are ATP binding cassette (ABC) transporters that are overexpressed in different drug-resistant cancer cell lines. In this study, we investigated whether doxorubicin promotes Pgp and/or BCRP expression to induce drug resistance in colon cancer cells under hypoxic conditions. We analyzed HIF-1α activity via ELISA, Pgp and BCRP expression by qRT-PCR and the relationship between doxorubicin uptake and ABC transporter expression via confocal microscopy in HT-29WT and HT-29 doxorubicin-resistant colon cancer cells (HT-29DxR)...
January 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28106260/first-report-of-stegomyia-aegypti-%C3%A2-aedes-aegypti-in-mexico-city-mexico
#18
P Kuri-Morales, F Correa-Morales, C González-Acosta, G Sánchez-Tejeda, E Dávalos-Becerril, M Fernanda Juárez-Franco, A Díaz-Quiñonez, H Huerta-Jimenéz, M D Mejía-Guevara, M Moreno-García, J F González-Roldán
Stegomyia aegypti (= Aedes aegypti) (Diptera: Culicidae) is a species of mosquito that is currently widespread in Mexico. Historically, the mosquito has been distributed across most tropical and subtropical areas lower than 1700 m a.s.l. Currently, populations that are found at higher altitudes in regions with cold and dry climates suggest that these conditions do not limit the colonization and population growth of S. aegypti. During a survey of mosquitoes in September 2015, larvae of S. aegypti mosquitoes were found in two different localities in Mexico City, which is located at about 2250 m a...
January 20, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28106228/expression-of-long-non-coding-rna-pandar-and-its-prognostic-value-in-colorectal-cancer-patients
#19
Xiangke Li, Feng Wang, Yan Sun, Qingxia Fan, Guangfei Cui
BACKGROUND: Long noncoding RNAs (lncRNAs) are emerging as key molecules in human cancer. In the present study, we explored the role of the lncRNA PANDAR in colorectal cancer (CRC). METHODS: The relative expression level of lncRNA PANDAR in CRC tissues and cell lines was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The associations between PANDAR expression and clinicopathological features of CRC patients were further analyzed. Kaplan-Meier survival analysis was performed to evaluate the value of PANDAR in the prognosis of CRC patients...
January 20, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28106168/visceral-hyperalgesia-caused-by-peptide-yy-deletion-and-y2-receptor-antagonism
#20
Ahmed M Hassan, Piyush Jain, Raphaela Mayerhofer, Esther E Fröhlich, Aitak Farzi, Florian Reichmann, Herbert Herzog, Peter Holzer
Altered levels of colonic peptide YY (PYY) have been reported in patients suffering from functional and inflammatory bowel disorders. While the involvement of neuropeptide Y (NPY) and Y receptors in the regulation of nociception is well established, the physiological role of PYY in somatic and visceral pain is poorly understood. In this work, the role of PYY in pain sensitivity was evaluated using PYY knockout (PYY((-/-))) mice and Y2 receptor ligands. PYY((-/-)) mice were more sensitive to somatic thermal pain compared to wild type (WT) mice...
January 20, 2017: Scientific Reports
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