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https://www.readbyqxmd.com/read/29344569/endoscopic-full-thickness-resection-with-an-over-the-scope-clip-device-ftrd-in-the-colorectum-results-from-a-university-tertiary-referral-center
#1
Francesco Vitali, Andreas Naegel, Juergen Siebler, Markus F Neurath, Timo Rath
Background and study aims:  The full-thickness resection device (FTRD) represents a novel endoscopic treatment method for lesions unresectable with conventional endoscopic techniques. The overall aim of this study was to evaluate technical success and in toto resection rates, recurrence rates, as well as immediate or late complications in patients who underwent polyp removal with the FTRD. Patients and methods:  Data from a prospectively collected database of 12 patients who underwent 13 over-the-scope clip-based full-thickness resections between June 2015 and June 2017 were analyzed...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29342885/alcohol-derived-acetaldehyde-exposure-in-the-oral-cavity
#2
REVIEW
Alessia Stornetta, Valeria Guidolin, Silvia Balbo
Alcohol is classified by the International Agency for Research on Cancer (IARC) as a human carcinogen and its consumption has been associated to an increased risk of liver, breast, colorectum, and upper aerodigestive tract (UADT) cancers. Its mechanisms of carcinogenicity remain unclear and various hypotheses have been formulated depending on the target organ considered. In the case of UADT cancers, alcohol's major metabolite acetaldehyde seems to play a crucial role. Acetaldehyde reacts with DNA inducing modifications, which, if not repaired, can result in mutations and lead to cancer development...
January 14, 2018: Cancers
https://www.readbyqxmd.com/read/29337244/mir-142-5p-act-as-an-oncogenic-microrna-in-colorectal-cancer-clinicopathological-and-functional-insights
#3
Farhadul Islam, Vinod Gopalan, Jelena Vider, Cu-Tai Lu, Alfred K-Y Lam
OBJECTIVES: miR-142-5p was noted aberrantly expressed and plays important roles in different pathophysiological conditions in human. The present study aims to examine the expression of miR-142-5p and its association with clinicopathological factors in a large cohort of patients with colorectal cancer. In addition, the cellular effects of miR-142-5p and its interacting targets in colon cancer cells were investigated. METHODS: Expression of miR-142-5p in colorectal cancer tissues (n=125) and colon cancer cell lines were analysed using real-time polymerase chain reaction...
January 11, 2018: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29334607/geographical-variations-and-trends-in-major-cancer-incidences-throughout-korea-during-1999-2013
#4
Young-Joo Won, Kyu-Won Jung, Chang-Mo Oh, Eun-Hye Park, Hyun-Joo Kong, Duk Hyoung Lee, Kang Hyun Lee
Purpose: We aimed to describe the temporal trends and district-level geographical variations in cancer incidences throughout Korea during 1999-2013. Materials and Methods: Data were obtained from the Korean National Cancer Incidence Database. We calculated the age-standardized cumulative cancer incidences according to sex and geographical region (metropolitan cities, provinces, and districts) for three 5-year periods (1999-2003, 2004-2008, and 2009-2013). Each quintile interval contained the same number of regions...
January 4, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29327707/appendiceal-goblet-cell-carcinoids-and-adenocarcinomas-ex-goblet-cell-carcinoid-are-genetically-distinct-from-primary-colorectal-type-adenocarcinoma-of-the-appendix
#5
Moritz Jesinghaus, Björn Konukiewitz, Sebastian Foersch, Albrecht Stenzinger, Katja Steiger, Alexander Muckenhuber, Claudia Groß, Martin Mollenhauer, Wilfried Roth, Sönke Detlefsen, Wilko Weichert, Günter Klöppel, Nicole Pfarr, Anna Melissa Schlitter
The appendix gives rise to goblet cell carcinoids, which represent special carcinomas with distinct biological and histological features. Their genetic background and molecular relationship to colorectal adenocarcinoma is largely unknown. We therefore performed a next-generation sequencing analysis of 25 appendiceal carcinomas including 11 goblet cell carcinoids, 7 adenocarcinomas ex-goblet cell carcinoid, and 7 primary colorectal-type adenocarcinomas, using a modified Colorectal Cancer specific Panel comprising 32 genes linked to colorectal and neuroendocrine tumorigenesis...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29326826/collision-tumor-consisting-of-a-colorectal-adenocarcinoma-and-dissemination-of-a-gastric-adenocarcinoma
#6
Ryoichi Miyamoto, Kazunori Kikuchi, Atsushi Uchida, Masayoshi Ozawa, Akira Kemmochi, Naoki Sano, Sosuke Tadano, Satoshi Inagawa, Shinya Adachi, Masayoshi Yamamoto
Background: Collision tumors, composed of histologically distinct tumor types, are rare entities, especially in the colorectum, and corresponding evidence-based clinical management or treatment strategies are poorly defined. This is the first report of a collision tumor composed of two histologically distinct adenocarcinomas. Case presentation: A 78-year-old male showed severe anemia and a 10% body weight loss over 1 month. Preoperative examination revealed T3N1M0 stage IIIA gastric cancer and T3N0M0 stage IIA rectal cancer...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29321536/enzymes-of-the-one-carbon-folate-metabolism-as-anticancer-targets-predicted-by-survival-rate-analysis
#7
Jun Koseki, Masamitsu Konno, Ayumu Asai, Hugh Colvin, Koichi Kawamoto, Naohiro Nishida, Daisuke Sakai, Toshihiro Kudo, Taroh Satoh, Yuichiro Doki, Masaki Mori, Hideshi Ishii
The significance of mitochondrial metabolism in cancer cells has recently been gaining attention. Among other findings, One-carbon folate metabolism has been reported to be closely associated with cellular characteristics in cancer. To study molecular targets for efficient cancer therapy, we investigated the association between the expressions of genes that code enzymes involved in one-carbon metabolism and survival rate of patients with adenocarcinomas of the colorectum and lung. Patients with high expression of genes that control the metabolic cycle of tetrahydrofolate (THF) in mitochondria, SHMT2, MTHFD2, and ALDH1L2, have a shorter overall survival rate compared with patients with low expression of these genes...
January 10, 2018: Scientific Reports
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
#8
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/29288512/pretreatment-of-probiotic-bifico-ameliorates-colitis-associated-cancer-in-mice-transcriptome-and-gut-flora-profiling
#9
Huan Song, Weiyi Wang, Bo Shen, Hao Jia, Zhaoyuan Hou, Ping Chen, Yunwei Sun
Individuals with inflammatory bowel disease (IBD) are at a high risk for developing colitis-associated cancer (CAC). Strategies to block the process from IBD to CAC should be considered. In the experiment, we aim to explore the chemopreventive efficacy of the probiotic cocktail Bifico and its potential mechanism in azoxymethane (AOM) and dextran sodium sulphate (DSS) induced colitis-associated cancer in mice. Oral pretreatment of Bifico was adopted to evaluate its protective effect. The colorectums of thirty-five C57BL/6 mice were collected and examined for degree of inflammation and tumorigenesis...
December 30, 2017: Cancer Science
https://www.readbyqxmd.com/read/29226335/cancer-incidence-in-northern-thailand-results-from-six-population-based-cancer-registries-1993-2012
#10
Donsuk Pongnikorn, Karnchana Daoprasert, Narate Waisri, Mathieu Laversanne, Freddie Bray
Rapid changes in social and economic development have led to cancer becoming a major cause of national morbidity and mortality in Thailand. Cancer registries have been critical in documenting subnational cancer patterns and transitions in the country; with the establishment of six registries in northern Thailand, a comprehensive assessment of the scale and profile of cancer is now possible in the region. Cancers of the liver, lung, colorectum, breast and cervix were the major cancers 2008-12, although variations in the profiles of cancer were observed, with a very high incidence of liver cancer seen among males in Phrae, corresponding to one in 11 men developing the disease in a lifetime...
December 11, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29218732/single-center-implementation-of-endoscopic-submucosal-dissection-esd-in-colorectum-low-recurrence-rate-after-intention-to-treat-esd
#11
Andrej Wagner, Daniel Neureiter, Tobias Kiesslich, Gernot W Wolkersdörfer, Thomas Pleininger, Christian Mayr, Christiane Dienhart, Naohisa Yahagi, Tsuneo Oyama, Frieder Berr
OBJECTIVES: Colorectal endoscopic submucosal dissection (ESD) shows higher R0 resection and lower local recurrence rates than endoscopic mucosal resection (EMR) in Japan. In Europe, independent learning of ESD in colorectum is feasible, but yet to be analyzed for curative resection and recurrence rates. METHODS: After experimental training under supervision by Japanese experts (T.O., N.Y.), three endoscopists independently performed 83 ESD procedures intention-to-treat for lesions in the entire colorectum of 67 patients in a prospective registry (Nov...
December 8, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29206668/treatment-patterns-and-clinical-outcomes-in-patients-with-metastatic-gastroenteropancreatic-neuroendocrine-tumors-treated-in-the-community-practice-setting-in-the-united-states
#12
Xiaolong Jiao, Sonia Pulgar, Marley Boyd, Fadi Braiteh, Beloo Mirakhur, Susan Pitman Lowenthal, Patricia Fox, Jennifer Frytak, David Cox, Andrew Scott Paulson
OBJECTIVE: This study was conducted to understand treatment patterns and clinical outcomes in metastatic gastroenteropancreatic neuroendocrine tumor patients treated in a large community oncology network. METHODS: This retrospective study used the McKesson Specialty Health/US Oncology Network iKnowMed electronic health record database with supplemental chart review. Eligibility criteria included a metastatic neuroendocrine tumor diagnosis between January 1, 2008, and to December 31, 2012; at least 2 US Oncology Network visits; and age at least 18 years...
December 5, 2017: Pancreas
https://www.readbyqxmd.com/read/29197994/serum-lipids-and-risk-of-obesity-related-cancers-in-postmenopausal-women
#13
Geoffrey C Kabat, Mimi Y Kim, Rowan T Chlebowski, Mara Z Vitolins, Sylvia Wassertheil-Smoller, Thomas E Rohan
PURPOSE: Obesity, which is commonly accompanied by dyslipidemia, is associated with an increased risk of certain cancers. However, the association of serum lipids with specific obesity-related cancers is unclear. METHODS: We examined the association of baseline lipids (total cholesterol, low-density lipoprotein cholesterol [LDL-C], high-density lipoprotein cholesterol [HDL-C], and triglycerides) with risk of developing seven obesity-related cancers in a subcohort of 24,208 participants in the Women's Health Initiative...
January 2018: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29167116/medullary-raphe-nuclei-activate-the-lumbosacral-defecation-center-through-the-descending-serotonergic-pathway-to-regulate-colorectal-motility-in-rats
#14
Hiroyuki Nakamori, Kiyotada Naitou, Yuuki Horii, Hiroki Shimaoka, Kazuhiro Horii, Hiroki Sakai, Akihiro Yamada, Hidemasa Furue, Takahiko Shiina, Yasutake Shimizu
Colorectal motility is regulated by two defecation centers located in the brain and spinal cord. In previous studies, we have shown that administration of serotonin into the lumbosacral spinal cord causes enhancement of colorectal motility. Since spinal serotonin is derived from neurons of the medullary raphe nuclei including the raphe magnus, raphe obscurus and raphe pallidus, we examined whether stimulation of the medullary raphe nuclei enhances colorectal motility via the lumbosacral defecation center. Colorectal pressure was recorded with a balloon in vivo in anesthetized rats...
November 22, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29153075/is-whole-colon-investigation-by-colonoscopy-computerised-tomography-colonography-or-barium-enema-necessary-for-all-patients-with-colorectal-cancer-symptoms-and-for-which-patients-would-flexible-sigmoidoscopy-suffice-a-retrospective-cohort-study
#15
Wendy Atkin, Kate Wooldrage, Urvi Shah, Kate Skinner, Jeremy P Brown, Willie Hamilton, Ines Kralj-Hans, Michael R Thompson, Karen G Flashman, Steve Halligan, Siwan Thomas-Gibson, Margaret Vance, Amanda J Cross
BACKGROUND: For patients referred to hospital with suspected colorectal cancer (CRC), it is current standard clinical practice to conduct an examination of the whole colon and rectum. However, studies have shown that an examination of the distal colorectum using flexible sigmoidoscopy (FS) can be a safe and clinically effective investigation for some patients. These findings require validation in a multicentre study. OBJECTIVES: To investigate the links between patient symptoms at presentation and CRC risk by subsite, and to provide evidence of whether or not FS is an effective alternative to whole-colon investigation (WCI) in patients whose symptoms do not suggest proximal or obstructive disease...
November 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29142518/local-recurrence-and-subsequent-endoscopic-treatment-after-endoscopic-piecemeal-mucosal-resection-with-or-without-precutting-in-the-colorectum
#16
Myeongsook Seo, Eun Mi Song, Gwang Un Kim, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Kyung-Jo Kim, Byong Duk Ye, Seung-Jae Myung, Suk-Kyun Yang, Jeong-Sik Byeon
Background/Aims: Precutting before endoscopic piecemeal mucosal resection (EPMR) may increase colorectal polyp resection effectiveness. We aimed to identify risk factors for recurrence after conventional EPMR (CEPMR) and precut EPMR (PEPMR) and investigated endoscopic treatment outcomes for recurrent cases. Methods: The medical records of patients with colorectal polyps treated by EPMR were analyzed. Patients without follow-up surveillance colonoscopies were excluded...
October 2017: Intestinal Research
https://www.readbyqxmd.com/read/29142293/neural-pathways-for-colorectal-control-relevance-to-spinal-cord-injury-and-treatment-a-narrative-review
#17
REVIEW
Brid Callaghan, John B Furness, Ruslan V Pustovit
STUDY DESIGN: Narrative review. OBJECTIVES: The purpose is to review the organisation of the nerve pathways that control defecation and to relate this knowledge to the deficits in colorectal function after SCI. METHODS: A literature review was conducted to identify salient features of defecation control pathways and the functional consequences of damage to these pathways in SCI. RESULTS: The control pathways for defecation have separate pontine centres under cortical control that influence defecation...
November 16, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29108324/age-adjusted-charlson-comorbidity-index-score-as-predictor-of-survival-of-patients-with-digestive-system-cancer-who-have-undergone-surgical-resection
#18
Yaohua Tian, Zhong Jian, Beibei Xu, Hui Liu
Comorbidities have considerable effects on survival outcomes. The primary objective of this retrospective study was to examine the association between age-adjusted Charlson comorbidity index (ACCI) score and postoperative in-hospital mortality in patients with digestive system cancer who have undergone surgical resection of their cancers. Using electronic hospitalization summary reports, we identified 315,464 patients who had undergone surgery for digestive system cancer in top-rank (Grade 3A) hospitals in China between 2013 and 2015...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29103541/problematic-colorectal-polyps-is-it-cancer-and-what-do-i-need-to-do-about-it
#19
REVIEW
Maurice B Loughrey, Neil A Shepherd
Two issues commonly arise for pathologists reporting adenomatous polyps of the colorectum. Particularly problematic within large sigmoid colonic adenomas is the distinction between benign misplacement of epithelium into the submucosa and invasive malignancy. This distinction requires careful morphologic evaluation of key discriminatory features, assisted only rarely by the application of selected adjunctive immunohistochemistry. Following a diagnosis of adenocarcinoma within a polypectomy or other local excision specimen, systematic assessment is required of features that may indicate the risk of residual local and/or nodal neoplastic disease and inform management decision-making regarding the need for further endoscopic or surgical intervention...
December 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29037958/expression-of-pd-1-and-pd-l1-in-poorly-differentiated-neuroendocrine-carcinomas-of-the-digestive-system-a-potential-target-for-anti-pd-1-pd-l1-therapy
#20
Jordan A Roberts, Raul S Gonzalez, Satya Das, Jordan Berlin, Chanjuan Shi
Poorly-differentiated neuroendocrine carcinoma of the digestive system has a dismal prognosis with limited treatment options. This study aimed to investigate expression of the PD-1/PD-L1 pathway in these tumors. Thirty-seven patients with a poorly-differentiated neuroendocrine carcinoma of the digestive system were identified. Their electronic medical records, pathology reports and pathology slides were reviewed for demographics, clinical history and pathologic features. Tumor sections were immunohistochemically labeled for PD-1 and PD-L1 and expression of PD-1 and PD-L1 on tumor and tumor-associated immune cells was analyzed and compared between small cell and large cell neuroendocrine carcinomas...
October 13, 2017: Human Pathology
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