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https://www.readbyqxmd.com/read/29334276/an-automatic-measure-of-progression-during-colonoscopy-correlates-to-patient-experienced-pain
#1
Louise Preisler, Mustafa Bulut, Morten Soendergaard Svendsen, Lars Bo Svendsen, Lars Konge
BACKGROUND: Colonoscopy screening and surveillance programs depend on patient's tolerable experience, which is associated with competence of the endoscopist. The Colonoscopy Progression Score (CoPS) is an automated tool based on recording of the Magnetic Scope Imager (MEI) picture in order to track progression. CoPS deliver a numeric score and a graphic map. A high score expresses a rapid and smooth progression. Aims of study were to explore the correlation between CoPS and patient experienced pain and to identity locations associated with pain...
January 15, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29334263/new-cytotoxic-natural-products-from-the-mangrove-biome-covering-the-period-2007-2015
#2
Boris Pejin, Miodrag Glumac
Nowadays, the mangrove biome is considered to be a profound resource of natural products usually possessing cytotoxicity of a broader range. Covering the period 2007-2015, a total of 21 new naturally occurring compounds has stood out. For example, xylogranin B and swietephragmin C were found to exhibit very potent cytotoxic activity against the colon HCT-116 cells reaching IC50 values of 0.05 and 0.06 μM, respectively. Bearing in mind the efficacy of the majority compounds in the preliminary in vitro screens, these studies should be expanded to both ex vivo and in vivo screens including the evaluation of the relevant toxicological profiles...
January 15, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29334243/facile-synthesis-of-simple-2-oxindole-based-compounds-with-promising-antiproliferative-activity
#3
Riham F George
AIM: Discovery of novel potent anticancer agents with lower side effects is a challenge to overcome cancer, the second leading cause of death. METHODOLOGY: 2-oxindole-based hydrazides (6a-g) and benzenesulfonyl hydrazides (9a-d) were synthesized by simple condensation reactions of the appropriate hydrazides (2a-g) or (8a-d) with 1-ethyl-2,3-oxindolinedione (4). They were screened for their cytotoxicity against HepG2 (liver), MCF-7 (breast), HCT116 (colon) and A549 (lung) cancer cell lines...
January 15, 2018: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/29333424/anatomical-distribution-and-detection-rate-of-colorectal-neoplasms-according-to-age-in-the-colonoscopic-screening-of-a-korean-population
#4
Suk-Young Lee, Wan Hee Song, Sang Cheul Oh, Byung-Wook Min, Sun Il Lee
Purpose: Because data as a basis for the determination of proper age and modality for screening of colorectal neoplasms is lacking, we evaluated detection rates and anatomical distribution of colorectal neoplasms according to age in healthy individuals who underwent total colonoscopy for health checkup. Methods: A total of 16,100 cases that had received the colonoscopic examination from January to December in 2014 were analyzed. The total number of individuals who received total colonoscopy were divided by the number of individuals harboring colorectal adenoma to calculate the detection rate of colorectal adenoma...
January 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29330346/underestimation-of-staphylococcus-aureus-mrsa-and-mssa-carriage-associated-with-standard-culturing-techniques-one-third-of-carriers-missed
#5
S T J Tsang, M P McHugh, D Guerendiain, P J Gwynne, J Boyd, A H R W Simpson, T S Walsh, I F Laurenson, K E Templeton
OBJECTIVES: Nasal carriers of Staphylococcus (S.) aureus (MRSA and MSSA) have an increased risk for healthcare-associated infections. There are currently limited national screening policies for the detection of S. aureus despite the World Health Organization's recommendations. This study aimed to evaluate the diagnostic performance of molecular and culture techniques in S. aureus screening, determine the cause of any discrepancy between the diagnostic techniques, and model the potential effect of different diagnostic techniques on S...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29330015/mother-to-child-transmission-of-extended-spectrum-beta-lactamase-producing-enterobacteriaceae
#6
Dana Danino, Rimma Melamed, Batya Sterer, Nurith Porat, Guy Hazan, Alex Gushanski, Eilon Shany, David Greenberg, Avraham Borer
BACKGROUND: Preterm infants are at high risk for extended spectrum beta-lactamase producing Enterobacteriaceae (ESBL-E) sepsis and neonatal intensive care unit (NICU) outbreaks. Maternal colonization with ESBL-E may be precursory to maternal-neonatal transmission. However, there is no consensus regarding surveillance of pregnant women for ESBL-E colonization. AIM: To identify pairs of mothers and offspring harbouring same-strain ESBL-E colonization and to determine whether maternal transmission may play a role in increasing ESBL-E carriage in preterm infants...
January 9, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29329342/ternary-copper-ii-complex-nci60-screening-toxicity-studies-and-evaluation-of-efficacy-in-xenograft-models-of-nasopharyngeal-carcinoma
#7
Munirah Ahmad, Shazlan-Noor Suhaimi, Tai-Lin Chu, Norazlin Abdul Aziz, Noor-Kaslina Mohd Kornain, D S Samiulla, Kwok-Wai Lo, Chew-Hee Ng, Alan Soo-Beng Khoo
Copper(II) ternary complex, [Cu(phen)(C-dmg)(H2O)]NO3 was evaluated against a panel of cell lines, tested for in vivo efficacy in nasopharyngeal carcinoma xenograft models as well as for toxicity in NOD scid gamma mice. The Cu(II) complex displayed broad spectrum cytotoxicity against multiple cancer types, including lung, colon, central nervous system, melanoma, ovarian, and prostate cancer cell lines in the NCI-60 panel. The Cu(II) complex did not cause significant induction of cytochrome P450 (CYP) 3A and 1A enzymes but moderately inhibited CYP isoforms 1A2, 2C9, 2C19, 2D6, 2B6, 2C8 and 3A4...
2018: PloS One
https://www.readbyqxmd.com/read/29326016/synthesis-of-novel-6-substituted-amino-9-%C3%AE-d-ribofuranosyl-purine-analogs-and-their-bioactivities-on-human-epithelial-cancer-cells
#8
Meral Tuncbilek, Aslıgul Kucukdumlu, Ebru Bilget Guven, Duygu Altiparmak, Rengul Cetin-Atalay
New nucleoside derivatives with nitrogen substitution at the C-6 position were prepared and screened initially for their in vitro anticancer bioactivity against human epithelial cancer cells (liver Huh7, colon HCT116, breast MCF7) by the NCI-sulforhodamine B assay. N6-(4-trifluoromethylphenyl)piperazine analog (27) exhibited promising cytotoxic activity. The compound 27 was more cytotoxic (IC50 = 1-4 μM) than 5-FU, fludarabine on Huh7, HCT116 and MCF7 cell lines. The most potent nucleosides (11, 13, 16, 18, 19, 21, 27, 28) were further screened for their cytotoxicity in hepatocellular cancer cell lines...
January 2, 2018: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29325882/pathophysiology-of-escherichia-coli-pneumonia-respective-contribution-of-pathogenicity-islands-to-virulence
#9
Mathilde Phillips-Houlbracq, Jean-Damien Ricard, Arnaud Foucrier, Deborah Yoder-Himes, Stéphane Gaudry, Julie Bex, Jonathan Messika, Dimitri Margetis, Jérémie Chatel, Ulrich Dobrindt, Erick Denamur, Damien Roux
Ventilator-associated pneumonia (VAP) remains the most frequent life-threatening nosocomial infection. Enterobacteriaceae including Escherichia coli are increasingly involved. If a cumulative effect of pathogenicity islands (PAIs) has been shown for E. coli virulence in urinary tract or systemic infections, very little is known regarding pathophysiology of E. coli pneumonia. This study aimed to determine the role of each of the 7 PAIs present in pathogenic E. coli strain 536 in pneumonia pathophysiology. We used mutant strains to screen pathophysiological role of PAI in a rat pneumonia model...
January 5, 2018: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/29316779/double-balloon-endoscopy-after-incomplete-colonoscopy-and-its-comparison-with-computed-tomography-colonography
#10
Carlijn Hermans, Dennis van der Zee, Lennard Gilissen
Background/Aims: Because of the national screening program for colorectal carcinoma in The Netherlands, the number of colonoscopies has increased. In case of incomplete colonoscopy, computed tomography colonography (CTC) and double-balloon colonoscopy (DBc) are alternative options. This study evaluated cecal intubation rate and pathology detection rate in the previously unexplored part of the colon, complication rate of DBc, and CTC results after incomplete colonoscopy. Methods: Retrospective observational study in a tertiary referral hospital regarding DBc and CTC reports from cases with incomplete colonoscopy...
January 10, 2018: Clinical Endoscopy
https://www.readbyqxmd.com/read/29312533/loss-of-pacs-2-delays-regeneration-in-dss-induced-colitis-but-does-not-affect-the-apcmin-model-of-colorectal-cancer
#11
Sarah L Dombernowsky, Jeanette Schwarz, Jacob Samsøe-Petersen, Reidar Albrechtsen, Kim B Jensen, Gary Thomas, Marie Kveiborg
PACS-2 is a multifunctional sorting protein that mediates cell homeostasis. We recently identified PACS-2 in a functional genome-wide siRNA screen for novel regulators of the metalloproteinase ADAM17, the main sheddase for ligands of the ErbB receptor family. Of note, we showed that Pacs2-/- mice have significantly reduced EGFR activity and proliferative index in the intestinal epithelium. As EGFR signaling is highly mitogenic for intestinal epithelial stem cells, and plays essential roles in intestinal epithelial regeneration and tumor development, we have now examined the role of PACS-2 in these processes...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29306603/colon-cancer-with-rapid-growth-in-16%C3%A2-months-confirmed-by-computed-tomographic-colonography
#12
Masaki Matsuoka, Norihito Shimizu, Koichi Nagata, Hiroshi Saito
This report describes a case of rapidly growing colon cancer confirmed by computed tomographic colonography (CTC). A 75-year-old woman presented at our clinic with complaints of abdominal discomfort and melena. Colorectal examination was performed via CTC. The findings were normal. Sixteen months later, she was referred to our clinic again for positive findings on a faecal immunochemical screening test. A repeat CTC was performed, which revealed a 3 cm ulcerated tumour at the ascending colon. Colonoscopy with biopsy revealed tubular adenocarcinoma...
January 3, 2018: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29301504/nine-primary-malignant-neoplasms-involving-the-esophagus-stomach-colon-rectum-prostate-and-external-ear-canal-without-microsatellite-instability-a-case-report
#13
Keiichi Arakawa, Keisuke Hata, Yoko Yamamoto, Takeshi Nishikawa, Toshiaki Tanaka, Tomomichi Kiyomatsu, Kazushige Kawai, Hiroaki Nozawa, Masafumi Yoshida, Hiroshi Fukuhara, Mitsuhiro Fujishiro, Teppei Morikawa, Tatsuya Yamasoba, Kazuhiko Koike, Masashi Fukayama, Toshiaki Watanabe
BACKGROUND: Although cases of multiple primary malignant neoplasms are increasing, reports of more than three or four primary metachronous malignant neoplasms are extremely rare. Moreover, very few publications have provided a genetic mutational analysis or have evaluated risk factors associated with such neoplasms. We present an extremely rare case of nine primary malignant lesions in a man who was successfully treated. We also report on microsatellite stability status, analyze risk factors, and discuss the relevant literature...
January 4, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29299683/hpv-genotypes-detected-by-linear-array-and-next-generation-sequencing-in-anal-samples-from-hiv-positive-men-who-have-sex-with-men-in-mexico
#14
Luz A González-Hernández, María G Flores-Miramontes, Adriana Aguilar-Lemarroy, Krissya S Quintanilla-Peña, Fabiola L Martin-Amaya-Barajas, Moisés Ramos-Solano, Luis F Enciso Gómez, Jaime F Andrade-Villanueva, Luis F Jave-Suárez
The incidence of anal cancer has been rising, especially in HIV+ patients and has been associated with HPV infection. HIV+ patients are more at risk of HPV coinfection and are seven times more likely to have persistent HPV infection; moreover, HIV+ men have an increased risk of developing anal cancer compared to HIV+ women. The development of screening strategies for the detection of HPV in HIV+ men is of major importance; however, there is not enough information about the HPV genotypes and variants that are colonizing the anal epithelia of HIV+ men in diverse geographical regions...
January 3, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29298653/synthesis-and-biological-evaluation-of-novel-triazoles-linked-7-hydroxycoumarin-as-potent-cytotoxic-agents
#15
Aashiq Hussain, Mushtaq A Qurishi, Abid Hamid, S Koul
Cancer is regarded as second leading cause of death worldwide. Therefore, there is a high demand for the discovery, development and improvement of novel anti-cancer agents which could efficiently prevent proliferative pathways and clonal expansion of cells. In view of this, a new series of bioactive scaffolds viz triazoles linked 7-hydroxycoumarin (1) were synthesized using click chemistry approach. All the synthesized compounds were screened for cytotoxicity against a panel of seven different human cancer cell lines viz...
December 29, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29297703/cancer-breath-testing-a-patent-review
#16
K M Mohibul Kabir, William A Donald
Human breath can contain thousands of volatile organic compounds (VOCs) and semi-volatile compounds that are related to metabolism and other biochemical processes. The presence of cancer cells can affect the identity and abundances of chemicals in breath when compared to those in healthy control subjects, which can be used to indicate the likelihood of a patient having cancer. Recently, the chemical analysis of exhaled breath from patients has been shown to be promising for diagnosing many different types of cancers, including lung, breast, colon, head and neck and prostate and pre-cancerous conditions (dysplasia)...
January 3, 2018: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/29295539/identification-of-inhibitors-targeting-ferredoxin-nadp%C3%A2-%C2%BA-reductase-from-the-xanthomonas-citri-subsp-citri-phytopathogenic-bacteria
#17
Marta Martínez-Júlvez, Guillermina Goñi, Daniel Pérez-Amigot, Rubén Laplaza, Irina Alexandra Ionescu, Silvana Petrocelli, María Laura Tondo, Javier Sancho, Elena G Orellano, Milagros Medina
Ferredoxin-NADP(H) reductases (FNRs) deliver NADPH or low potential one-electron donors to redox-based metabolism in plastids and bacteria. Xanthomonas citri subsp. citri (Xcc) is a Gram-negative bacterium responsible for citrus canker disease that affects commercial citrus crops worldwide. The Xcc fpr gene encodes a bacterial type FNR (XccFPR) that contributes to the bacterial response to oxidative stress conditions, usually found during plant colonization. Therefore, XccFPR is relevant for the pathogen survival and its inhibition might represent a strategy to treat citrus canker...
December 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29291406/bax%C3%AE-2-sensitizes-colorectal-cancer-cells-to-proteasome-inhibitor-induced-cell-death
#18
Adriana Mañas, Wenjing Chen, Adam Nelson, Qi Yao, Jialing Xiang
Proteasome inhibitors, such as bortezomib and carfilzomib, are FDA approved for the treatment of hemopoietic cancers, but recent studies have shown their great potential for treatment of solid tumors. BaxΔ2, a unique proapoptotic Bax isoform, promotes non-mitochondrial cell death and sensitizes cancer cells to chemotherapy. However, endogenous BaxΔ2 proteins are unstable and susceptible to proteasomal degradation. Here, we screened a panel of proteasome inhibitors in colorectal cancer cells with different Bax statuses...
December 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29290918/laparoscopic-vs-open-complete-mesocolic-excision-with-central-vascular-ligation-for-colon-cancer-a-systematic-review-and-meta-analysis
#19
Ionut Negoi, Sorin Hostiuc, Ruxandra Irina Negoi, Mircea Beuran
AIM: To compare the effectiveness of laparoscopic complete mesocolic excision (CME) with central vascular ligation (L-CME) with its open (O-CME) counterpart. METHODS: We conducted an electronic search of the PubMed/MEDLINE, Excerpta Medica Database, Web of Science Core Collection, Cochrane Center Register of Controlled Trails, Cochrane Database of Systematic Reviews, SciELO, and Korean Journal databases from their inception until May 2017. We considered randomized controlled trials (RCTs) and controlled clinical trials (CCTs) that included patients with colonic cancer comparing L-CME and O-CME...
December 15, 2017: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29290782/hypothesis-induction-of-biomarkers-for-detection-of-colonic-neoplasms
#20
Michael Bordonaro, Darina Lazarova
The signing of the National Cancer Act of 1971 by President Nixon marked the beginning of our war on cancer. More than 45 years later, the war is still going steady, with the enemy being almost as strong as in 1971. Furthermore, the increasing rates of obesity not only among adults, but among children and adolescents, are the likely cause for the 30-year trend of colon cancer (CC) becoming a disease of the younger population in the U.S. These trends, however, have not spurred the development of novel screening approaches for CC...
2018: Journal of Cancer
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