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https://www.readbyqxmd.com/read/28324283/prognostic-value-of-computed-tomography-measured-parameters-of-body-composition-in-primary-operable-gastrointestinal-cancers
#1
Douglas Black, Craig Mackay, George Ramsay, Zaid Hamoodi, Shayanthan Nanthakumaran, Kenneth G M Park, Malcolm A Loudon, Colin H Richards
BACKGROUND: Previous reports suggest that body composition parameters can be used to predict outcomes for patients with gastrointestinal (GI) cancers. However, evidence for an association with long-term survival is conflicting, with much of the data derived from patients with advanced disease. This study examined the effect of body composition on survival in primary operable GI cancer. METHODS: Patients with resectable adenocarcinoma of the GI tract (esophagus, stomach, colon, rectum) between 2006 and 2014 were identified from a prospective database...
March 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28323443/impact-of-abdominal-adipose-depots-and-race-on-risk-for-colorectal-cancer-a-case-control-study
#2
Sandra L Gomez-Perez, Vivek Chaudhry, Winnie Mar, Bimal Patel, Giamila Fantuzzi, Sally Freels, Carol A Braunschweig
Visceral adipose tissue (VAT) but not subcutaneous adipose tissue (SAT) is associated with obesity-related diseases including colorectal cancer (CRC). Superficial SAT (SSAT) and deep SAT (DSAT), components of SAT, also appear to independently influence disease risk. These abdominal adipose tissues (AATs) are not extensively studied in connection with CRC and have not been explored in the United States despite known racial variations in body composition. We conducted a case-control study that compared associations between AAT with CRC risk and race of African-American (AA) and non-Hispanic white (NHW) men with incident CRC matched by age, body mass index, and race (N = 158, 79/group)...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28323438/green-tea-polyphenols-inhibit-colorectal-tumorigenesis-in-azoxymethane-treated-f344-rats
#3
Xingpei Hao, Hang Xiao, Jihyeung Ju, Mao-Jung Lee, Joshua D Lambert, Chung S Yang
In studying the cancer-preventive activities of green tea polyphenols, we previously demonstrated that dietary administration of polyphenon E (PPE) inhibited the formation of aberrant crypt foci (ACF) in the colon of azoxymethane (AOM)-treated F344 rats. Herein, we reported cancer-preventive activity of PPE using colorectal cancer as an end point. F344 rats were given two weekly injections of AOM, and then maintained on a 20% high-fat diet with or without 0.24% PPE for 34 wk. In the control group, 83% of rats developed colorectal tumors...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28323437/potato-consumption-and-risk-of-colorectal-cancer-in-the-norwegian-women-and-cancer-cohort
#4
Lene A Åsli, Anja Olsen, Tonje Braaten, Eiliv Lund, Guri Skeie
Potatoes are the fourth most plentiful food crop in the world, yet the scientific literature on the health effects of potato consumption is scarce. This study aimed to investigate the association between potato consumption and the risk of colorectal cancer (CRC) among 79,778 women aged 41-70, in the Norwegian Women and Cancer study. Information on diet, lifestyle, and health was collected by questionnaire. CRC cases (n  =  912) were identified through registry linkage. Adjusted Cox proportional hazard models were used to estimate the association between potato consumption and the risk of CRC...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28320200/clinical-and-biological-features-of-interval-colorectal-cancer
#5
Yu Mi Lee, Kyu Chan Huh
Interval colorectal cancer (I-CRC) is defined as a CRC diagnosed within 60 months after a negative colonoscopy, taking into account that 5 years is the "mean sojourn time." It is important to prevent the development of interval cancer. The development of interval colon cancer is associated with female sex, old age, family history of CRC, comorbidities, diverticulosis, and the skill of the endoscopist. During carcinogenesis, sessile serrated adenomas/polyps (SSA/Ps) share many genomic and colonic site characteristics with I-CRCs...
March 21, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28320104/sulfatase-2-promotes-the-growth-and-metastasis-of-colorectal-cancer-by-activating-akt-and-erk1-2-pathways
#6
Youmao Tao, Tao Han, Tao Zhang, Caixia Sun
The molecular mechanisms underlying the growth and metastasis of colorectal cancer (CRC) remain largely unknown. Sulfatase-2 (SULF2) was found to play critical roles in human cancers. Recent study reported that SULF1/2 overexpression resulted in increased viability and proliferation, and augmented cell migration in CRC cells. However, the expression of SULF2 and its underlying molecular mechanisms in CRC remain unknown. In this study, we found that the expressions of SULF2 in CRC tissues and cell lines were significantly increased compared to control groups...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28320053/management-of-colorectal-trauma-a-review
#7
REVIEW
Ju Yong Cheong, Anil Keshava
Traumatic colorectal injuries are common during times of military conflict, and major improvements in their care have arisen in such periods. Since World War II, many classification systems for colorectal trauma have been proposed, including (i) Flint Grading System; (ii) Penetrating Abdominal Trauma Index; (iii) Colonic/Rectal Injury Scale; and (iv) destructive/non-destructive colonic injuries. The primary goal of these classifications was to aid surgical management and, more particularly, to determine whether a primary repair or faecal diversion should be performed...
March 20, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28319988/travel-distance-to-cancer-treatment-facilities-in-the-deep-south
#8
Mary J Wills, Marilyn V Whitman, Thomas M English
Despite ongoing efforts to improve rural healthcare, the health problems facing rural communities persist. The lack of healthcare providers and infrastructure in rural areas has been linked to a number of negative consequences. Among the elderly rural population, the lack of proximal access presents greater barriers because many elderly people are further limited in their ability to travel and pay for services. In the Deep South specifically, rural residents experience limited access to care and overall poor health outcomes...
January 2017: Journal of Healthcare Management / American College of Healthcare Executives
https://www.readbyqxmd.com/read/28319941/short-term-outcomes-after-simultaneous-colorectal-and-major-hepatic-resection-for-synchronous-colorectal-liver-metastases
#9
Yoshihiro Ono, Akio Saiura, Junichi Arita, Yu Takahashi, Michiro Takahashi, Yosuke Inoue
BACKGROUND/AIMS: Resection of the liver is the standard therapeutic approach for patients with hepatic metastasis and is the only therapy with curative potential. The optimal timing of surgical resection for synchronous metastases has remained controversial. METHODS: From January 1993 to December 2008, our strategy has been to use simultaneous resection for resectable synchronous colorectal and liver metastases. During this period, 115 patients underwent simultaneous colorectal and hepatic resection...
March 21, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28319461/monocytes-macrophages-mobilization-orchestrate-neovascularization-after-localized-colorectal-irradiation
#10
Céline Loinard, José Vilar, Fabien Milliat, Bernard Lévy, Marc Benderitter
In patients undergoing radiotherapy for cancer, radiation dose to healthy tissue can occur, causing microvascular damage. Monocytes that have been shown to promote tissue revascularization comprise the subsets: CD11b(+)Ly6G(-)7/4(hi)/monocytes(hi) and CD11b(+)Ly6G(-)7/4(lo)/monocytes(lo). We hypothesized that monocytes were implicated in postirradiation blood vessel formation. C57Bl6 mice underwent localized colorectal irradiation and were sacrificed at different times after exposure. Bone marrow, spleen, blood and colon were collected...
March 20, 2017: Radiation Research
https://www.readbyqxmd.com/read/28319429/current-standards-and-new-developments-of-colorectal-polyp-management-and-resection-techniques
#11
Daniel von Renteln, Mickael Bouin, Alan N Barkun
Colonoscopy and endoscopic removal of precancerous polyps play an important role in colorectal cancer (CRC) prevention. Improved endoscopes and quality standards have led to an increasing polyp and adenoma detection rate. Optimal polyp resection techniques and management strategies are key for an effective colonoscopy practice. Areas covered: Strategies for how to improve diminutive polyp (polyps up to 5mm in size) management are discussed because of their high prevalence. Systematic removal of diminutive polyps leads to increasing costs of colonoscopy practice, while the effect on colorectal cancer prevention might be negligible...
March 20, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28319316/barriers-to-the-management-of-obstructed-defecation-according-to-colorectal-surgeons
#12
Nagham Al-Mozany, Caroline Wright, Greg O'Grady, Christopher J Young, Michael J Solomon
INTRODUCTION: Obstructive defecation (OD) has a high prevalence and disease impact, however patients often experience suboptimal management. This problem reflects the complex pathophysiology of OD, as well as health service delivery factors. This study aimed to identify factors acting as a barrier to effective OD management as perceived by specialist colorectal surgeons treating this disorder. METHOD: A postal questionnaire was administered to a bi-national sampling of colorectal specialists in Australia and New Zealand who were registered with their specialty society...
March 20, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28319096/hyperglycemia-exacerbates-colon-cancer-malignancy-through-hexosamine-biosynthetic-pathway
#13
A Vasconcelos-Dos-Santos, H F B R Loponte, N R Mantuano, I A Oliveira, I F de Paula, L K Teixeira, J C M de-Freitas-Junior, K C Gondim, N Heise, R Mohana-Borges, J A Morgado-Díaz, W B Dias, A R Todeschini
Hyperglycemia is a common feature of diabetes mellitus, considered as a risk factor for cancer. However, its direct effects in cancer cell behavior are relatively unexplored. Herein we show that high glucose concentration induces aberrant glycosylation, increased cell proliferation, invasion and tumor progression of colon cancer. By modulating the activity of the rate-limiting enzyme, glutamine-fructose-6-phosphate amidotransferase (GFAT), we demonstrate that hexosamine biosynthetic pathway (HBP) is involved in those processes...
March 20, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28319088/reference-component-analysis-of-single-cell-transcriptomes-elucidates-cellular-heterogeneity-in-human-colorectal-tumors
#14
Huipeng Li, Elise T Courtois, Debarka Sengupta, Yuliana Tan, Kok Hao Chen, Jolene Jie Lin Goh, Say Li Kong, Clarinda Chua, Lim Kiat Hon, Wah Siew Tan, Mark Wong, Paul Jongjoon Choi, Lawrence J K Wee, Axel M Hillmer, Iain Beehuat Tan, Paul Robson, Shyam Prabhakar
Intratumoral heterogeneity is a major obstacle to cancer treatment and a significant confounding factor in bulk-tumor profiling. We performed an unbiased analysis of transcriptional heterogeneity in colorectal tumors and their microenvironments using single-cell RNA-seq from 11 primary colorectal tumors and matched normal mucosa. To robustly cluster single-cell transcriptomes, we developed reference component analysis (RCA), an algorithm that substantially improves clustering accuracy. Using RCA, we identified two distinct subtypes of cancer-associated fibroblasts (CAFs)...
March 20, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28319059/camk2%C3%AE-in-intestinal-epithelial-cells-modulates-colitis-associated-colorectal-carcinogenesis-via-enhancing-stat3-activation
#15
X Ma, Z Meng, L Jin, Z Xiao, X Wang, W M Tsark, L Ding, Y Gu, J Zhang, B Kim, M He, X Gan, J E Shively, H Yu, R Xu, W Huang
Inflammation is one of the major risk factors for cancer. Here, we show that calcium/calmodulin-dependent protein kinase II gamma (CAMK2γ) in intestinal epithelial cells (IECs) modulates inflammatory signals and promotes colitis-associated cancer (CAC) in mice. We have identified CAMK2γ as a downstream target of colitis-induced WNT5A signaling. Furthermore, we have shown that CAMK2γ protects against intestine tissue injury by increasing IEC survival and proliferation. Calcium/calmodulin-dependent protein kinase II gamma knockout mice displayed reduced CAC...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28318706/special-situations-in-inflammatory-bowel-disease-first-latin-american-consensus-of-the-pan-american-crohn-s-and-colitis-organisation-pancco
#16
J K Yamamoto-Furusho, F Bosques-Padilla, P Daffra, J De-Paula, J Etchevers, M T Galiano, P Ibañez, F Juliao, P Kotze, J M Marroquín de la Garza, R Monreal Robles, J L Rocha, F Steinwurz, R Vázquez-Frías, G Veitia, C Zaltman
This is the first Latin American Consensus of the Pan American Crohn's and Colitis Organisation (PANCCO) regarding special situations in patients with inflammatory bowel disease (IBD). The aim of this consensus is to raise awareness in the medical community in all Latin American countries with respect to pregnancy, vaccinations, infections, neoplasms, including colorectal cancer, and pediatric issues in patients with IBD.
March 16, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28317692/classifications-for-optical-diagnosis-of-colorectal-lesions-not-2b%C3%A2-with-jnet
#17
EDITORIAL
David G Hewett, Shinichiro Sakata
No abstract text is available yet for this article.
April 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28317592/long-term-prognostic-value-of-preoperative-anemia-in-patients-with-colorectal-cancer-a-systematic-review-and-meta-analysis
#18
REVIEW
M J Wilson, M van Haaren, J J Harlaar, Hee Chul Park, H J Bonjer, J Jeekel, J J Zwaginga, M Schipperus
OBJECTIVE: To evaluate the long-term prognostic factor of preoperative anemia in colorectal cancer patients. BACKGROUND: Anemia is frequently observed in colorectal cancer patients, with a case incidence of 30 to 67 percent. Besides an indicator of tumor-induced blood loss and inflammation, anemia in cancer is also suggested to be a cause of inferior outcome, possibly via worsening of tumor hypoxia. As surgery is likely to enhance anemia, the long-term prognostic value of preoperative anemia seems most interesting...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28317583/the-diagnostic-performance-of-18-f-fdg-pet-ct-ct-and-mri-in-the-treatment-evaluation-of-ablation-therapy-for-colorectal-liver-metastases-a-systematic-review-and-meta-analysis
#19
REVIEW
M Samim, I Q Molenaar, M F J Seesing, P S N van Rossum, M A A J van den Bosch, T J M Ruers, I H M Borel Rinkes, R van Hillegersberg, M G E H Lam, H M Verkooijen
PURPOSE: Uncertainty exists regarding the optimal imaging modality for timely detection of disease progression (DP) after ablation therapy for colorectal liver metastases. We evaluated the diagnostic accuracy of (18)F-FDG PET(/CT), CT and MRI for detection of DP following ablation therapy. METHODS: A systematic search was performed on May 18, 2016. The analysis included studies that reported on the diagnostic accuracy of (18)F-FDG PET(/CT), CT and/or MRI for post-ablative evaluation of patients with liver metastases...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28317582/robotic-right-hemicolectomy-analysis-of-108-consecutive-procedures-and-multidimensional-assessment-of-the-learning-curve
#20
Amilcare Parisi, Luca Scrucca, Jacopo Desiderio, Alessandro Gemini, Salvatore Guarino, Francesco Ricci, Roberto Cirocchi, Giorgio Palazzini, Vito D'Andrea, Liliana Minelli, Stefano Trastulli
PURPOSE: Surgeons tend to view the robotic right colectomy (RRC) as an ideal beginning procedure to gain proficiency in robotic general and colorectal surgery. Nevertheless, oncological RRC, especially if performed with intracorporeal ileocolic anastomosis confectioning, cannot be considered a technically easier procedure. The aim of this study was to assess the learning curve of the RRC performed for oncological purposes and to evaluate its safety and efficacy investigating the perioperative and pathology outcomes in the different learning phases...
March 2017: Surgical Oncology
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