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https://www.readbyqxmd.com/read/27913994/sox2-inhibition-promotes-promoter-demethylation-of-cdx2-to-facilitate-gastric-intestinal-metaplasia
#1
Haijing Niu, Yuchen Jia, Tao Li, Bingzhong Su
BACKGROUND: Gastric intestinal metaplasia (IM) is regarded as a premalignant lesion, conferring risks for gastric cancer development. An intestinal transcription factor, CDX2, plays a vital role in establishing and maintaining IM. SOX2, an HMG-box transcription factor, is expressed in normal gastric mucosa and downregulated in IM. Therefore, it is important to elucidate the mutual interaction of SOX2 and CDX2 in gastric IM. AIMS: This study aims to evaluate the negative correlation between SOX2 and CDX2 in mRNA expression and promoter methylation and to illuminate the effect of SOX2 on the promoter methylation of CDX2...
December 2, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27913273/the-endocrine-vitamin-d-system-in-the-gut
#2
Antonio Barbáchano, Asunción Fernández-Barral, Gemma Ferrer-Mayorga, Alba Costales-Carrera, María Jesús Larriba, Alberto Muñoz
The active vitamin D metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) has important regulatory actions in the gut through endocrine and probably also intracrine, autocrine and paracrine mechanisms. By activating the vitamin D receptor (VDR), which is expressed at a high level in the small intestine and colon, 1,25(OH)2D3 regulates numerous genes that control gut physiology and homeostasis. 1,25(OH)2D3 is a major responsible for epithelial barrier function and calcium and phosphate absorption, and the host's defense against pathogens and the inflammatory response by several types of secretory and immune cells...
November 29, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27913188/fructose-suppresses-uric-acid-excretion-to-the-intestinal-lumen-as-a-result-of-the-induction-of-oxidative-stress-by-nadph-oxidase-activation
#3
Chihiro Kaneko, Jiro Ogura, Shunichi Sasaki, Keisuke Okamoto, Masaki Kobayashi, Kaori Kuwayama, Katsuya Narumi, Ken Iseki
BACKGROUND: A high intake of fructose increases the risk for hyperuricemia. It has been reported that long-term fructose consumption suppressed renal uric acid excretion and increased serum uric acid level. However, the effect of single administration of fructose on excretion of uric acid has not been clarified. METHODS: We used male Wistar rats, which were orally administered fructose (5g/kg). Those rats were used in each experiment at 12h after administration...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27912148/anti-cancer-effect-of-lactic-acid-bacteria-expressing-antioxidant-enzymes-or-il-10-in-a-colorectal-cancer-mouse-model
#4
Silvina Del Carmen, Alejandra de Moreno de LeBlanc, Romina Levit, Vasco Azevedo, Philippe Langella, Luis G Bermúdez-Humarán, Jean Guy LeBlanc
The association between inflammatory bowel diseases and colorectal cancer is well documented. The genetic modification of lactic acid bacteria as a tool to increase the anti-inflammatory potential of these microorganisms has also been demonstrated. Thus the aim of the present work was to evaluate the anti-cancer potential of different genetically modified lactic acid bacteria (GM-LAB) producing antioxidant enzymes (catalase or superoxide dismutase) or the anti-inflammatory cytokine IL-10 (protein or DNA delivery) using a chemical induced colon cancer murine model...
November 29, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27910783/recent-advances-and-challenges-in-studies-of-control-of-cancer-stem-cells-and-the-gut-microbiome-by-the-trametes-derived-polysaccharopeptide-psp-review
#5
Joseph M Wu, Barbara B Doonan, Tze-Chen Hsieh, Qingyao Yang, Xiao-Tong Yang, Ming-Tat Ling
The medicinal mushroom Trametes versicolor has been well recognized for its activity in maintaining the general health of the population and in managing and treating human diseases in various cultures. Its use has been recently gaining acceptance and popularity in Western countries. The reported health benefits of T. versicolor led to a search for the identity of its bioactive ingredients. These efforts have resulted in the isolation of the polysaccharopeptide PSP from cultured mycelia of strain Cov-1, which expresses large amounts of PSP...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27910140/side-effects-of-irinotecan-cpt-11-the-clinically-used-drug-for-colon-cancer-therapy-are-eliminated-in-experimental-animals-treated-with-latex-proteins-from-calotropis-procera-apocynaceae
#6
Nylane Maria Nunes de Alencar, Flávio da Silveira Bitencourt, Ingrid Samantha Tavares de Figueiredo, Patrícia Bastos Luz, Roberto César P Lima-Júnior, Karoline Sabóia Aragão, Pedro Jorge Caldas Magalhães, Gerly Anne de Castro Brito, Ronaldo Albuquerque Ribeiro, Ana Paula Fragoso de Freitas, Marcio Viana Ramos
Intestinal mucositis (IM) is the critical side effect of irinotecan (CPT-11), which is the front-line drug used for the treatment of colorectal cancer. This study aimed to evaluate the effectiveness of latex proteins (LP) from Calotropis procera to prevent IM and diarrhea in animals. Swiss mice were treated daily with saline or LP (1, 5, or 50 mg/kg, i.v.) 24 h prior to CTP-11 (75 mg/kg/4 days, i.p) and for additional 6 days. Animal survival, body weight variation, and diarrhea were registered. After animal sacrifice (day 7 post first injection of CPT-11), intestinal samples were collected to study morphology and inflammatory parameters...
December 2, 2016: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/27909875/one-anastomosis-gastric-bypass-why-biliary-reflux-remains-controversial
#7
Matthieu Bruzzi, Jean-Marc Chevallier, Sébastien Czernichow
One-anastomosis gastric bypass is an alternative to the "gold-standard" Roux-en-Y gastric bypass. This technique appears to be safe and efficient, but controversy remains regarding the long-term theoretical risk of subsequent biliary reflux and its possible complications, such as cancer. The aim of the present narrative review was to summarize some of the current thoughts on biliary reflux. Research has established that exposure to chronic bile reflux in humans and rats (outside the "bariatric surgery" box) induce esophageal intestinal metaplasia and esophageal adenocarcinoma...
December 1, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27908922/stomach-cancer-disparity-among-korean-americans-by-tumor-characteristics-comparison-with-non-hispanic-whites-japanese-americans-south-koreans-and-japanese
#8
Eunjung Lee, Lihua Liu, Juanjuan Zhang, Mariana C Stern, Afsaneh Barzi, Amie E Hwang, Andre E Kim, Ann S Hamilton, Anna H Wu, Dennis Deapen
BACKGROUND: Stomach cancer incidence shows substantial racial-ethnic disparity in the United States (US), with Korean Americans experiencing by far the highest incidence. We examined stomach cancer incidence trends in Korean Americans by tumor subsite, histology and stage, and compared them with incidence rates in racial-ethnic groups with the second highest rate (Japanese Americans) and the lowest rate (non-Hispanic whites; NHWs) as well as populations in South Korea and Japan. METHODS: We calculated age-adjusted incidence rates by racial-ethnic groups and sex, by tumor characteristics, using the 1988-2012 California Cancer Registry data...
December 1, 2016: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27908594/rucaparib-in-relapsed-platinum-sensitive-high-grade-ovarian-carcinoma-ariel2-part-1-an-international-multicentre-open-label-phase-2-trial
#9
Elizabeth M Swisher, Kevin K Lin, Amit M Oza, Clare L Scott, Heidi Giordano, James Sun, Gottfried E Konecny, Robert L Coleman, Anna V Tinker, David M O'Malley, Rebecca S Kristeleit, Ling Ma, Katherine M Bell-McGuinn, James D Brenton, Janiel M Cragun, Ana Oaknin, Isabelle Ray-Coquard, Maria I Harrell, Elaina Mann, Scott H Kaufmann, Anne Floquet, Alexandra Leary, Thomas C Harding, Sandra Goble, Lara Maloney, Jeff Isaacson, Andrew R Allen, Lindsey Rolfe, Roman Yelensky, Mitch Raponi, Iain A McNeish
BACKGROUND: Poly(ADP-ribose) polymerase (PARP) inhibitors have activity in ovarian carcinomas with homologous recombination deficiency. Along with BRCA1 and BRCA2 (BRCA) mutations genomic loss of heterozygosity (LOH) might also represent homologous recombination deficiency. In ARIEL2, we assessed the ability of tumour genomic LOH, quantified with a next-generation sequencing assay, to predict response to rucaparib, an oral PARP inhibitor. METHODS: ARIEL2 is an international, multicentre, two-part, phase 2, open-label study done at 49 hospitals and cancer centres in Australia, Canada, France, Spain, the UK, and the USA...
November 28, 2016: Lancet Oncology
https://www.readbyqxmd.com/read/27906137/in-vitro-toxicity-of-carbon-nanotube-polylysine-colloids-to-colon-cancer-cells
#10
Alejandro Ansón-Casaos, Laura Grasa, Desirée Pereboom, José Emilio Mesonero, Alvaro Casanova, María Divina Murillo, María Teresa Martínez
Single-walled carbon nanotubes (SWCNTs) are thoroughly purified and dispersed in an aqueous solution of high molecular weight poly-L-lysine (pLlys). Human intestinal epithelial Caco-2/TC7 cells are incubated with the SWCNT dispersions in pLlys, and their effects on cell viability are studied by image flow cytometry. No significant changes are observed in the cell culture wells up to pLlys concentrations of 10 μg ml(-1). However, high mortality is detected at pLlys concentrations of 100 μg ml(-1). The presence of oxygen-free SWCNTs does not modify the effects of pLlys on cell cultures at any of the tested concentrations (≤1 μg ml(-1))...
December 2016: IET Nanobiotechnology
https://www.readbyqxmd.com/read/27905372/-combined-surgery-for-locally-advanced-colorectal-cancer
#11
O I Kit, Yu A Gevorkyan, N V Soldatkina, E N Kolesnikov, V E Kolesnikov, M A Kozhushko, A V Dashkov
AIM: To study the types and early outcomes of combined interventions for locally advanced colorectal cancer. MATERIAL AND METHODS: Since 2009 four hundreds and ninety eight patients underwent surgery in the Rostov Research Institute of Oncology for locally advanced colorectal cancer. Most cases of surgical procedures on adjacent organs included resection of small intestine (23.69%), supravaginal hysterectomy (16.47%), resection of bladder (12.25%), total hysterectomy (11...
2016: Khirurgiia
https://www.readbyqxmd.com/read/27905371/-management-of-locally-advanced-colon-cancer-with-duodenal-invasion
#12
V I Pomazkin
AIM: To present 7 cases of radical surgical treatment of colon cancer with duodenal invasion. MATERIAL AND METHODS: Mean age of patients was 72.3 years. 1 patient underwent pancreatoduodenectomy with right-sided hemicolectomy en bloc. In 6 patients right-sided hemicolectomy with atypical duodenectomy were performed. Herewith, the defect was sutured in 1 case. In 5 patients the defect was closed by duodenojejunostomy with initial intestinal loop. RESULTS: There was no postoperative mortality...
2016: Khirurgiia
https://www.readbyqxmd.com/read/27903960/survival-outcomes-and-surgical-intervention-of-small-intestinal-neuroendocrine-tumors-a-population-based-retrospective-study
#13
Lunpo Wu, Jianfei Fu, Li Wan, Jie Pan, Sanchuan Lai, Jing Zhong, Daniel C Chung, Liangjing Wang
BACKGROUND: Small intestinal neuroendocrine tumors (SiNETs) without distant metastasis typically behave in an indolent manner, but there can be heterogeneity. We aimed to define the survival outcomes and impacts of surgical intervention. METHODS: A retrospective cohort study was conducted by using data from the Surveillance, Epidemiology, and End Results (SEER) database. Clinicopathologic features were analyzed in 4407 patients between 2000 and 2012. The cancer specific survival (CSS) was calculated by the Kaplan-Meier method...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27903746/intestinal-glycolysis-visualized-by-fdg-pet-ct-correlates-with-glucose-decrement-after-gastrectomy
#14
Cheol Ryong Ku, Narae Lee, Jae Won Hong, In Gyu Kwon, Woo Jin Hyung, Sung Hoon Noh, Eun Jig Lee, Mijin Yun, Arthur Cho
Gastrectomy method is known to influence glucose homeostasis. (18)F-fluorodeoxyglucose (FDG) PET/CT acquired after gastrectomy often reveals newly developed physiologic small bowel uptake. We correlated newly developed small bowel FDG uptake and glucose homeostasis in post-gastrectomy gastric cancer patients. We retrospectively analyzed 239 non-diabetic patients who underwent staging and follow-up FDG PET/CT before and after gastrectomy for gastric cancer. Post-operative small bowel glycolysis was quantified by recording intestinal total lesion glycolysis (TLG)...
November 30, 2016: Diabetes
https://www.readbyqxmd.com/read/27902469/the-mir-196b-mirna-inhibits-the-gata6-intestinal-transcription-factor-and-is-upregulated-in-colon-cancer-patients
#15
Sebastian Fantini, Valentina Salsi, Luca Reggiani, Antonino Maiorana, Vincenzo Zappavigna
OBJECTIVE: To explore the possible misexpression of the microRNA miR-196b in colorectal cancer (CRC) and its role in controlling the expression of GATA6, a putative target gene crucial to intestinal cell homeostasis and tumorigenesis. DESIGN: The expression of miR-196b was analysed by qRT-PCR in surgical resection samples from a cohort of sporadic colon cancer patients. Manipulations of miR-196b expression were performed to demonstrate its inhibition of GATA6 protein levels...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27902422/microbiota-dysbiosis-a-new-piece-in-the-understanding-of-carcinogenesis-puzzle
#16
Valeria García-Castillo, Enrique Sanhueza, Eileen McNerney, Sergio A Onate, Apolinaria García
Cancer is defined as an uncontrolled proliferation of malignant cells in a host and it is one of the main causes of death worldwide. Genetic and environmental factors play an important role in its development and the involvement of microbial communities has also recently been recognized. The close relationship that characterizes the colonization of human commensal communities involves health risks particularly when the homeostasis is disturbed. It has been hypothesized that this process may lead to cancer by modulating the inflammatory response of the host, by the production of carcinogenic metabolic products or by the production of toxins which disrupt the cell cycle...
October 21, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27900602/transepithelial-transport-of-curcumin-in-caco-2-cells-is-significantly-enhanced-by-micellar-solubilisation
#17
Jan Frank, Christina Schiborr, Alexa Kocher, Jürgen Meins, Dariush Behnam, Manfred Schubert-Zsilavecz, Mona Abdel-Tawab
Curcumin, the active constituent of Curcuma longa L. (family Zingiberaceae), has gained increasing interest because of its anti-cancer, anti-inflammatory, anti-diabetic, and anti-rheumatic properties associated with good tolerability and safety up to very high doses of 12 g. Nanoscaled micellar formulations on the base of Tween 80 represent a promising strategy to overcome its low oral bioavailability. We therefore aimed to investigate the uptake and transepithelial transport of native curcumin (CUR) vs. a nanoscaled micellar formulation (Sol-CUR) in a Caco-2 cell model...
November 29, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27900486/staging-laparoscopy-for-advanced-gastric-cancer-significance-of-preoperative-clinicopathological-factors
#18
Hisahiro Hosogi, Hisashi Shinohara, Shigeru Tsunoda, Shigeo Hisamori, Hitoshi Sumida, Koya Hida, Kazutaka Obama, Hiroshi Okabe, Yoshiharu Sakai
PURPOSE: Although the use of staging laparoscopy (SL) for detecting peritoneal metastasis (P) and determining peritoneal lavage cytology (CY) is widespread in advanced gastric cancer, an indication for SL based on preoperative clinicopathological factors is controversial. METHODS: From May 2006 to September 2015, 120 patients with advanced gastric cancer with primary tumors ≥5 cm and/or with bulky regional lymph nodes (bulky N) underwent SL for assessment of P/CY status...
November 29, 2016: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/27899999/colorectal-cancer-patients-exhibit-increased-levels-of-galanin-in-serum-and-colon-tissues
#19
Przemysław Kwiatkowski, Janusz Godlewski, Jacek Kieżun, Bartłomiej Emil Kraziński, Zbigniew Kmieć
Galanin (GAL) is a 30-amino acid neuropeptide that is expressed in both the central and peripheral nervous system, including the enteric nervous system (ENS). Increased GAL concentrations have been identified in the blood of colorectal cancer (CRC) patients. The aim of the present study was to assess whether sections of the colon wall containing ENS plexuses or CRC tumor are associated with increased GAL concentrations. Blood samples were collected from 68 CRC patients and 39 healthy volunteers. In addition, samples of CRC tumors and colon wall tissue in close proximity to and distant from the neoplastic tissue were obtained from 22 CRC patients...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27896461/transversus-abdominis-plane-block-for-postoperative-pain-relief-after-hand-assisted-laparoscopic-colon-surgery-a-randomized-placebo-controlled-clinical-trial
#20
R Tikuisis, P Miliauskas, V Lukoseviciene, N Samalavicius, A Dulskas, L Zabuliene, V Zabulis, J Urboniene
BACKGROUND: Although hand-assisted laparoscopic surgery (HALS) offers patients smaller surgical incisions, they still experience pain. Currently, there is no consensus on the optimal analgesic package for patients undergoing HALS. The aim of this prospective, randomized, double-blinded, placebo-controlled clinical trial was to evaluate the effect of transversus abdominis plane (TAP) block on postoperative pain control (pain score and analgesic use) and other outcomes in colon cancer patients undergoing hand-assisted laparoscopic left hemicolectomy...
November 28, 2016: Techniques in Coloproctology
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