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colorectal cancer and early detection

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https://www.readbyqxmd.com/read/28434582/effectiveness-between-early-and-late-temporary-ileostomy-closure-in-patients-with-rectal-cancer-a-prospective-study
#1
Li Zhen, Yanan Wang, Ze Zhang, Tongwei Wu, Ruoyan Liu, Tingting Li, Liying Zhao, Haijun Deng, Xiaolong Qi, Guoxin Li
A temporary stoma is often used in rectal cancer surgery to protect a distal anastomosis, which remains a major concern after rectal cancer surgery, particularly after low anterior resection. The temporary stoma is scheduled for closure. However, the optimal time of closure of the protecting stoma remains unclear because of sparse studies and data. We aimed to detect the efficacy between early and late temporary ileostomy closure in patients with rectal cancer during or after neoadjuvant chemoradiotherapy. We conducted a prospective, 2-group design between early and late ileostomy closure group in patients after rectal cancer surgery with temporary stoma...
March 2, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28423721/downregulation-of-phosphorylated-mkk4-is-associated-with-a-poor-prognosis-in-colorectal-cancer-patients
#2
Wang Pu-Ning, Huang Jun, Duan Ying-Hua, Zhou Jia-Min, Huang Pin-Zhu, Fan Xin-Juan, Huang Yan, Wang Lei, Liu Huan-Liang, Wang Jian-Ping, Huang Mei-Jin
Mitogen-activated protein kinase kinase 4 (MKK4) is a key mediator of Jun N-terminal kinase signaling and influences malignant metastasis. Here, we used immunohistochemistry to assess phosphorylated MMK4 (pMKK4) levels and examine their association with the clinicopathological features of a pilot set of patient samples consisting of normal colonic mucosa (NCM), colorectal adenoma (CA), and colorectal cancer (CRC) tissues. pMKK4 levels were also assessed in a validation set of CRC cases with accompanying follow-up data to confirm their clinicopathological and prognostic significance...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423643/pole-and-pold1-screening-in-155-patients-with-multiple-polyps-and-early-onset-colorectal-cancer
#3
Clara Esteban-Jurado, David Giménez-Zaragoza, Jenifer Muñoz, Sebastià Franch-Expósito, Miriam Álvarez-Barona, Teresa Ocaña, Miriam Cuatrecasas, Sabela Carballal, María López-Cerón, Maria Marti-Solano, Marcos Díaz-Gay, Tom van Wezel, Antoni Castells, Luis Bujanda, Judith Balmaña, Victoria Gonzalo, Gemma Llort, Clara Ruiz-Ponte, Joaquín Cubiella, Francesc Balaguer, Rosa Aligué, Sergi Castellví-Bel
Germline mutations in POLE and POLD1 have been shown to cause predisposition to colorectal multiple polyposis and a wide range of neoplasms, early-onset colorectal cancer being the most prevalent. In order to find additional mutations affecting the proofreading activity of these polymerases, we sequenced its exonuclease domain in 155 patients with multiple polyps or an early-onset colorectal cancer phenotype without alterations in the known hereditary colorectal cancer genes. Interestingly, none of the previously reported mutations in POLE and POLD1 were found...
March 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423493/clinical-significance-of-detecting-circulating-tumor-cells-in-colorectal-cancer-using-subtraction-enrichment-and-immunostaining-fluorescence-in-situ-hybridization-se-ifish
#4
Wei Wu, Zhenzhen Zhang, Xian Hua Gao, Zhen Shen, Yan Jing, Haibo Lu, Heng Li, Xiaoye Yang, Xiangbin Cui, Yuqing Li, Zheng Lou, Peng Liu, Cun Zhang, Wei Zhang
Circulating tumor cells (CTC) are useful in early detection of colorectal cancer. This study described a newly developed platform, integrated subtraction enrichment and immunostaining-fluorescence in situ hybridization (SE-iFISH), to assess CTCs in colorectal cancer. CTCs were detected by SE-iFISH in 40 of 44 preoperative colorectal cancer patients, and yielded a sensitivity of 90.9%, which was significantly higher than CellSearch system (90.9% vs. 43.2%, P=0.033). No significant association was found between tumor stage, survival and preoperative CTC number...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419195/plasma-ctdna-ras-mutation-analysis-for-the-diagnosis-and-treatment-monitoring-of-metastatic-colorectal-cancer-patients
#5
J Vidal, L Muinelo, A Dalmases, F Jones, D Edelstein, M Iglesias, M Orrillo, A Abalo, C Rodríguez, E Brozos, Y Vidal, S Candamio, F Vázquez, J Ruiz, M Guix, L Visa, V Sikri, J Albanell, B Bellosillo, R López, C Montagut
Background: RAS assessement is mandatory for therapy decision in metastatic colorectal cancer (mCRC) patients. This determination is based on tumor tissue, however genotyping of circulating tumor (ct)DNA offers clear advantages as a minimally invasive method that represents tumor heterogeneity. Our study aims to evaluate the use of ctDNA as an alternative determining baseline RAS status and subsequent monitoring of RAS mutations during therapy as a component of routine clinical practice...
April 13, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28416736/nomo-1-gene-is-deleted-in-early-onset-colorectal-cancer
#6
José Perea, Juan Luis García, Jessica Pérez, Daniel Rueda, María Arriba, Yolanda Rodríguez, Miguel Urioste, Rogelio González-Sarmiento
To characterize clinical features of a recurrent alteration in 16p13.12-p13.11 in Colorectal Cancer (CRC), mainly in Early-onset subgroup (EOCRC), and to assess the status of NOMO1, a gene located in that region, we analyzed differential clinicopathological, familial and molecular features of CRC subsets with and without alterations in the 16p13.12-p13.11, in global and EOCRC groups. We confirmed the region by fluorescence in-situ hybridization, and Quantitative Real-Time PCR analyzed the status of NOMO1 in different age-of-onset and Microsatellite Instability (MSI)-status CRC subsets...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412138/early-postoperative-fdg-pet-ct-imaging-results-in-a-relevant-upstaging-in-the-pn2-subgroup-of-stage-iii-colorectal-cancer-patients
#7
Martin Fehr, Joachim Müller, Meinhard Knitel, Jürgen Fornaro, Daniel Horber, Dieter Koeberle, Thomas Cerny, Ulrich Güller
INTRODUCTION: Clinical practice guidelines regarding follow-up in patients after curative resection of colorectal cancer (CRC) vary widely. Current follow-up recommendations do not include additional postoperative imaging before starting adjuvant treatment in any patients. We evaluated the potential benefit of our institutional approach, recommending (18)fluor-deoxy-glucose (FDG)-positron emission tomography (PET)-computed tomography (CT) imaging in CRC stage III patients with ≥4 locoregional lymph node metastases (pN2)...
March 21, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28405143/diagnostic-value-evaluation-of-trefoil-factors-family-3-for-the-early-detection-of-colorectal-cancer
#8
Hui Xie, Jian-Hai Guo, Wei-Min An, Sheng-Tao Tian, Hai-Peng Yu, Xue-Ling Yang, Hua-Ming Wang, Zhi Guo
AIM: The purpose of this study was to evaluate the diagnostic value of trefoil factor family 3 (TFF3) for the early detection of colorectal cancer (CC). METHODS: Serum TFF3 and carcino-embryonic antigen (CEA) were detected in 527 individuals, including 115 healthy control (HC), 198 colorectal adenoma (CA), and 214 CC individuals in the training group. RESULTS: Serum TFF3 showed no significant correlation with age, gender, or tumor location but showed significant correlation with the tumor stage...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28404964/identification-of-serum-mir-139-3p-as-a-non-invasive-biomarker-for-colorectal-cancer
#9
Lui Ng, Timothy Ming-Hun Wan, Johnny Hon-Wai Man, Ariel Ka-Man Chow, Deepak Iyer, Guanghua Chen, Thomas Chung-Cheung Yau, Oswens Siu-Hung Lo, Dominic Chi-Chung Foo, Jensen Tung-Chung Poon, Wai-Keung Leung, Roberta Wen-Chi Pang, Wai-Lun Law
Aberrant levels of circulating microRNAs are potential biomarkers for the early detection of colorectal cancer. The aim of this study was to study miR-139-3p and miR-622 in serum as a non-invasive biomarker for colorectal cancer diagnosis. We applied quantitative polymerase chain reaction to determine the levels of miR-139-3p and miR-622 in 42 pairs of tumor and adjacent non-tumor tissues, and in serum samples of 117 patients and 90 control subjects. Our results showed that miR-139-3p was silenced whereas miR-622 was overexpressed in colorectal cancer...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28393575/using-circulating-cell-free-dna-to-monitor-personalized-cancer-therapy
#10
Michael Oellerich, Ekkehard Schütz, Julia Beck, Philipp Kanzow, Piers N Plowman, Glen J Weiss, Philip D Walson
High-quality genomic analysis is critical for personalized pharmacotherapy in patients with cancer. Tumor-specific genomic alterations can be identified in cell-free DNA (cfDNA) from patient blood samples and can complement biopsies for real-time molecular monitoring of treatment, detection of recurrence, and tracking resistance. cfDNA can be especially useful when tumor tissue is unavailable or insufficient for testing. For blood-based genomic profiling, next-generation sequencing (NGS) and droplet digital PCR (ddPCR) have been successfully applied...
April 10, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28382661/pre-operative-haemoglobin-levels-and-iron-status-in-a-large-multicentre-cohort-of-patients-undergoing-major-elective-surgery
#11
M Muñoz, M J Laso-Morales, S Gómez-Ramírez, M Cadellas, M J Núñez-Matas, J A García-Erce
Pre-operative anaemia in patients undergoing major surgical procedures has been linked to poor outcomes. Therefore, early detection and treatment of pre-operative anaemia is recommended. However, to effectively implement a pre-operative anaemia management protocol, an estimation of its prevalence and main causes is needed. We analysed data from 3342 patients (44.5% female) scheduled for either: elective orthopaedic surgery (n = 1286); cardiac surgery (n = 691); colorectal cancer resection (n = 735); radical prostatectomy (n = 362); gynaecological surgery (n = 203) or resection of liver metastases (n = 122)...
April 6, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28381120/simultaneous-assessment-of-the-efficacy-and-toxicity-of-marine-mollusc-derived-brominated-indoles-in-an-in-vivo-model-for-early-stage-colon-cancer
#12
Babak Esmaeelian, Kirsten Benkendorff, Richard K Le Leu, Catherine A Abbott
The acute apoptotic response to genotoxic carcinogens animal model has been extensively used to assess the ability of drugs and natural products like dietary components to promote apoptosis in the colon and protect against colorectal cancer (CRC). This work aimed to use this model to identify the main chemopreventative agent in extracts from an Australian mollusc Dicathais orbita, while simultaneously providing information on their potential in vivo toxicity. After 2 weeks of daily oral gavage with bioactive extracts and purified brominated indoles, mice were injected with the chemical carcinogen azoxymethane (AOM; 10 mg/kg) and then killed 6 hours later...
April 1, 2017: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/28380627/promoting-cancer-screening-among-churchgoing-latinas-fe-en-acci%C3%A3-n-faith-in-action
#13
J P Elder, J Haughton, L G Perez, M E Martínez, C L De la Torre, D J Slymen, E M Arredondo
Cancer screening rates among Latinas are generally low, reducing the likelihood of early cancer detection in this population. This article examines the effects of a community intervention (Fe en Acción/Faith in Action) led by community health workers (promotoras) on promoting breast, cervical and colorectal cancer screening among churchgoing Latinas. Sixteen churches were randomly assigned to a cancer screening or a physical activity intervention. We examined cancer knowledge, barriers to screening and self-reported mammography, clinical breast exam, Pap test, fecal occult blood test and sigmoidoscopy or colonoscopy at baseline and 12 months follow-up...
April 1, 2017: Health Education Research
https://www.readbyqxmd.com/read/28378966/results-of-screening-in-lublin-province-poland-for-colorectal-cancer-and-neoplastic-polyps-the-role-of-environmental-factors
#14
Halina Cichoż-Lach, Justyna Szumiło, Krzysztof Celiński, Beata Kasztelan-Szczerbińska, Mariusz Szczerbiński, Jarosław Swatek, Lech Wronecki, Janusz Wargocki, Maria Słomka
INTRODUCTION AND OBJECTIVE: Screening colonoscopy is a recommended tool, and the most sensitive and cost-effective method for reducing the incidence of colorectal cancer (CRC). OBJECTIVE: The purpose of the study was to present the results of a 5-year screening for early detection of CRC carried out among the population of the central-eastern regions of Poland, primarily in Lublin Province. MATERIALS AND METHOD: Screening colonoscopy was conducted in a group of 1,009 patients - 636 women and 373 men, aged 40-65 years...
March 31, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28377387/long-term-use-of-antibiotics-and-risk-of-colorectal-adenoma
#15
Yin Cao, Kana Wu, Raaj Mehta, David A Drew, Mingyang Song, Paul Lochhead, Long H Nguyen, Jacques Izard, Charles S Fuchs, Wendy S Garrett, Curtis Huttenhower, Shuji Ogino, Edward L Giovannucci, Andrew T Chan
OBJECTIVE: Recent evidence suggests that antibiotic use, which alters the gut microbiome, is associated with an increased risk of colorectal cancer. However, the association between antibiotic use and risk of colorectal adenoma, the precursor for the majority of colorectal cancers, has not been investigated. DESIGN: We prospectively evaluated the association between antibiotic use at age 20-39 and 40-59 (assessed in 2004) and recent antibiotic use (assessed in 2008) with risk of subsequent colorectal adenoma among 16 642 women aged ≥60 enrolled in the Nurses' Health Study who underwent at least one colonoscopy through 2010...
April 4, 2017: Gut
https://www.readbyqxmd.com/read/28376235/survival-analysis-of-the-ceawatch-multicentre-clustered-randomized-trial
#16
C J Verberne, Z Zhan, E R van den Heuvel, F Oppers, A M de Jong, I Grossmann, J M Klaase, G H de Bock, T Wiggers
BACKGROUND: The CEAwatch randomized trial showed that follow-up with intensive carcinoembryonic antigen (CEA) monitoring (CEAwatch protocol) was better than care as usual (CAU) for early postoperative detection of colorectal cancer recurrence. The aim of this study was to calculate overall survival (OS) and disease-specific survival (DSS). METHODS: For all patients with recurrence, OS and DSS were compared between patients detected by the CEAwatch protocol versus CAU, and by the method of detection of recurrence, using Cox regression models...
April 4, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28376154/annual-report-to-the-nation-on-the-status-of-cancer-1975-2014-featuring-survival
#17
Ahmedin Jemal, Elizabeth M Ward, Christopher J Johnson, Kathleen A Cronin, Jiemin Ma, Blythe Ryerson, Angela Mariotto, Andrew J Lake, Reda Wilson, Recinda L Sherman, Robert N Anderson, S Jane Henley, Betsy A Kohler, Lynne Penberthy, Eric J Feuer, Hannah K Weir
Background: The American Cancer Society (ACS), the Centers for Disease Control and Prevention (CDC), the National Cancer Institute (NCI), and the North American Association of Central Cancer Registries (NAACCR) collaborate to provide annual updates on cancer occurrence and trends in the United States. This Annual Report highlights survival rates. Data were from the CDC- and NCI-funded population-based cancer registry programs and compiled by NAACCR. Trends in age-standardized incidence and death rates for all cancers combined and for the leading cancer types by sex were estimated by joinpoint analysis and expressed as annual percent change...
September 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28374902/impact-of-microrna-375-and-its-target-gene-smad-7-polymorphism-on-susceptibility-of-colorectal-cancer
#18
Olfat Gamil Shaker, Shereen Rashad Mohammed, Asmaa Mohammed Mohammed, Zeinab Mahmoud
BACKGROUND: Colorectal cancer (CRC) has a high morbidity and mortality. Many studies reported that mir-375 is frequently down-regulated in many cancers including esophageal cancer, hepatocellular carcinoma, breast cancer and leukemias. AIM: Our aim was to study the expression of microRNA-375 and its target gene SMAD-7 polymorphisms (rs4939827) in CRC patients in comparison to control subjects and to correlate these results with clinical data of patients to elucidate their role in pathogenesis and early diagnosis of CRC...
April 4, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28363770/lectin-functionalized-mesoporous-silica-nanoparticles-for-endoscopic-detection-of-premalignant-colonic-lesions
#19
Nai-Tzu Chen, Jeffrey S Souris, Shih-Hsun Cheng, Chia-Hui Chu, Yu-Chao Wang, Vani Konda, Urszula Dougherty, Marc Bissonnette, Chung-Yuan Mou, Chin-Tu Chen, Leu-Wei Lo
Colorectal cancer (CRC) is one of the leading causes of cancer-deaths worldwide. Methods for the early in situ detection of colorectal adenomatous polyps and their precursors - prior to their malignancy transformation into CRC - are urgently needed. Unfortunately at present, the primary diagnostic method, colonoscopy, can only detect polyps and carcinomas by shape/morphology; with sessile polyps more likely to go unnoticed than polypoid lesions. Here we describe our development of polyp-targeting, fluorescently-labeled mesoporous silica nanoparticles (MSNs) that serve as targeted endoscopic contrast agents for the early detection of colorectal polyps and cancer...
March 29, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28362661/a-study-comparing-colorectal-cancer-screening-techniques
#20
Rachel Stewart, Heather Carter-Templeton
Colorectal cancer is in the top 3 of both diagnosed cancers and deaths related to cancer in the United States. Despite this, Americans are continuing to forgo colorectal cancer screening as part of their preventive health maintenance. Screening helps identify precancerous and early cancerous lesions so they can be easily treated and cured. The purpose of this study was to compare the rates of detection of adenomatous (precursors to colorectal cancer) polyps and colorectal cancer in 2 groups of asymptomatic patients: one group undergoing standard colonoscopy and the other group undergoing standard colonoscopy in conjunction with fecal occult blood testing...
March 2017: Gastroenterology Nursing: the Official Journal of the Society of Gastroenterology Nurses and Associates
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