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https://www.readbyqxmd.com/read/29164476/diverticular-colitis-with-progression-to-ulcerative-colitis-after-sigmoidectomy
#1
Atsuyo Ikeda, Tsunekazu Mizushima, Yutaro Egashira, Hidekazu Takahashi, Norikatsu Miyoshi, Naotsugu Haraguchi, Taishi Hata, Chu Matsuda, Yuichiro Doki, Masaki Mori
Diverticular colitis is chronic inflammation of the colon where diverticula are present. The endoscopic and histopathological findings of this disease are sometimes similar to those of ulcerative colitis, and several reports describe cases of diverticular colitis that progressed to typical ulcerative colitis. A 77-year-old woman with intramesenteric penetration of the sigmoid diverticulum underwent low anterior resection. One month later, the patient experienced anastomotic leakage, and transverse colostomy was performed...
November 21, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29158782/a-phase-ii-trial-of-preoperative-concurrent-chemotherapy-and-dose-escalated-intensity-modulated-radiotherapy-imrt-for-locally-advanced-rectal-cancer
#2
Jeremy Tey, Cheng Nang Leong, Wai Kit Cheong, Tay Guan Sze, Wei Peng Yong, Ivan Weng Keong Tham, Khai Mun Lee
Objectives: To determine the pathological response rates and toxicity and in patients with locally advanced rectal cancer treated with concurrent capecitabine and dose escalated intensity modulated radiotherapy (IMRT) Methods: Patients with stage II or III adenocarcinoma of the rectum were treated with preoperative concurrent capecitabine and IMRT. Dose of capecitabine was 825mg/m(2), 5 days a week for 5 weeks. IMRT was used to deliver a dose of 45Gy in 25 fractions (1.8Gy per fraction daily, 5 days a week over 5 weeks) to the regional lymphatics and areas at risk of harbouring microscopic disease...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29158178/dissection-enabled-scaffold-assisted-resection-descar-a-novel-technique-for-resection-of-residual-or-non-lifting-gi-neoplasia-of-the-colon-with-video
#3
Matthew W Stier, Christopher G Chapman, Allie Kreitman, John A Hart, Shu-Yuan Xiao, Uzma D Siddiqui, Irving Waxman
BACKGROUND AND AIMS: Due to previous manipulation or submucosal invasion, GI lesions referred for endoscopic mucosal resection (EMR) frequently have flat areas of visible tissue that cannot be snared. Current methods for treating residual tissue may lead to incomplete eradication or not allow complete tissue sampling for histologic evaluation. Our aim is to describe dissection-enabled scaffold-assisted resection (DeSCAR), a new technique combining circumferential ESD with EMR for removal of superficial non-lifting or residual "islands" with suspected submucosal involvement/fibrosis...
November 17, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29156831/protective-effect-of-nsa-on-intestinal-epithelial-cells-in-a-necroptosis-model
#4
Wei Dong, Min Zhang, Yaxi Zhu, Yuanhan Chen, Xingchen Zhao, Ruizhao Li, Li Zhang, Zhiming Ye, Xingling Liang
Objective: This study aimed to investigate the protective effect of the necroptosis inhibitor necrosulfonamide (NSA) on intestinal epithelial cells using a novel in vitro necroptosis model that mimics inflammatory bowel disease (IBD). Methods: 2,4,6-trinitrobenzenesulfonic acid (TNBS) was perfused into the rectum of BALB/c mice to established a colitis model. Pathologic injury and cell death were evaluated. A novel in vitro model of necroptosis was established in Caco-2 cells using TNF-α and Z-VAD-fmk, and the cells were treated with or without NSA...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156800/comparative-molecular-analyses-of-left-sided-colon-right-sided-colon-and-rectal-cancers
#5
Mohamed E Salem, Benjamin A Weinberg, Joanne Xiu, Wafik S El-Deiry, Jimmy J Hwang, Zoran Gatalica, Philip A Philip, Anthony F Shields, Heinz-Josef Lenz, John L Marshall
Tumor sidedness has emerged as an important prognostic and predictive factor in the treatment of colorectal cancer. Recent studies demonstrate that patients with advanced right-sided colon cancers have a worse prognosis than those with left-sided colon or rectal cancers, and these patient subgroups respond differently to biological therapies. Historically, management of patients with metastatic colon and rectal cancers has been similar, and colon and rectal cancer patients have been grouped together in large clinical trials...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156750/somatic-mutations-in-cdh1-and-ctnnb1-in-primary-carcinomas-at-13-anatomic-sites
#6
Evan L Busch, Jason L Hornick, Renato Umeton, Adem Albayrak, Neal I Lindeman, Laura E MacConaill, Elizabeth P Garcia, Matthew Ducar, Timothy R Rebbeck
Metastases are involved in most cancer deaths. Evidence has suggested that cancer cell detachment from primary tumors might occur largely via the mechanism of epithelial-mesenchymal transition (EMT) activated by epigenetic events, but data addressing other possible triggers of detachment, particularly genetic mutations, have been limited. Using the Profile study of cancer genomics at Dana-Farber Cancer Institute, we examined somatic mutations in the EMT genes CDH1 in 5,106 primary carcinomas and CTNNB1 in 7,578 primary carcinomas across 13 anatomic sites: urinary bladder, breast, colon/rectum, endometrium, esophagus, kidney, lung, ovary, pancreas, prostate, skin (non-melanoma), stomach, and thyroid...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156633/alcohol-and-cancer-stem-cells
#7
REVIEW
Mei Xu, Jia Luo
Heavy alcohol consumption has been associated with increased risk of several cancers, including cancer of the colon, rectum, female breast, oral cavity, pharynx, larynx, liver, and esophagus. It appears that alcohol exposure not only promotes carcinogenesis but also enhances the progression and aggressiveness of existing cancers. The molecular mechanisms underlying alcohol tumor promotion, however, remain unclear. Cancer stem cells (CSC), a subpopulation of cancer cells with self-renewal and differentiation capacity, play an important role in tumor initiation, progression, metastasis, recurrence, and therapy resistance...
November 20, 2017: Cancers
https://www.readbyqxmd.com/read/29155514/the-prognostic-effect-of-neoadjuvant-chemoradiotherapy-on-the-change-of-pd-l1-expression-in-patients-with-locally-advanced-rectal-adenocarcinoma
#8
Igor Richter, Tomas Jirasek, Josef Dvorak, Eva Cermakova, Petra Rehakova, Jiri Bartos
PURPOSE: To evaluate the prognostic effect of neoadjuvant chemoradiotherapy on the change of programmed death ligand 1 (PD-L1) expression in patients with locally advanced rectal adenocarcinoma, by comparing PD-L1 expression in pretreatment biopsies and PD-L1 expression in pathological specimens after neoadjuvant chemoradiotherapy. METHODS: A total of 25 patients with rectal adenocarcinoma were evaluated. Patients were treated by neoadjuvant chemoradiotherapy (radiotherapy:44Gy normofraxionation; chemotherapy: capecitabine 825 mg/m(2) in two daily doses)...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29153462/health-related-quality-of-life-and-toxicity-after-single-fraction-19%C3%A2-gy-high-dose-rate-prostate-brachytherapy-phase-ii-trial
#9
Alfonso Gomez-Iturriaga, Francisco Casquero, Jose Ignacio Pijoan, Pablo Minguez, Jose Maria Espinosa, Ana Irasarri, Andrea Bueso, Jon Cacicedo, David Buchser, Pedro Bilbao
PURPOSE: To evaluate the safety, tolerance and impact on health-related-quality-of-life (HRQoL) of the high-dose-rate brachytherapy of 19 Gy (BRT-HDR-19 Gy) single fraction in prostate cancer. METHODS: From January 2014 to July 2016, 43 patients with low/intermediate risk were treated with BRT-HDR-19 Gy. The patients were monitored prospectively for toxicity and HRQoL. RESULTS: The median age, initial PSA and the International Prostate Symptom Score (IPSS) were 71 years (55-78), 7...
November 15, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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
#10
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/29152846/on-the-geud-biological-optimization-objective-for-organs-at-risk-in-photon-optimizer-of-eclipse-treatment-planning-system
#11
Antonella Fogliata, Stephen Thompson, Antonella Stravato, Stefano Tomatis, Marta Scorsetti, Luca Cozzi
Inverse planning optimization using biologically based objectives is becoming part of the intensity modulated optimization process. The performances and efficacy of the biologically based gEUD (generalized Equivalent Uniform Dose) objective implemented in the Photon Optimizer (PO) of Varian Eclipse treatment planning system have been here analyzed. gEUD is associated with the parameter a that accounts for the seriality of a structure, being higher for more serial organs. The PO was used to optimize volumetric modulated arc therapy (VMAT) plans on a virtual homogeneous cylindrical phantom presenting a target and an organ at risk (OAR)...
November 20, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29151521/a-10-year-history-of-a-diminutive-rectal-neuroendocrine-tumor
#12
Katsuyuki Murai, Kenichiro Imai, Kinichi Hotta, Sayo Ito, Yuichiro Yamaguchi, Hiroyuki Ono
A 39-year-old woman underwent a preoperative diagnostic colonoscopy for cervical cancer. A 3-mm neuroendocrine tumor (NET) was incidentally detected in the rectum. The NET was observed via 7 colonoscopies over 10 years while giving priority to treating the cervical cancer. Complete cervical cancer remission was confirmed at the 10-year follow-up examination; therefore, endoscopic treatment for the NET was subsequently performed. The NET showed almost no change in either size or morphology over the 10-year period...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29146150/the-effect-of-cold-acclimation-on-active-ion-transport-in-cricket-ionoregulatory-tissues
#13
Lauren E Des Marteaux, Soheila Khazraeenia, Gil Y Yerushalmi, Andrew Donini, Natalia G Li, Brent J Sinclair
Cold-acclimated insects defend ion and water transport function during cold exposure. We hypothesized that this is achieved via enhanced active transport. The Malpighian tubules and rectum are likely targets for such transport modifications, and recent transcriptomic studies indicate shifts in Na(+)-K(+) ATPase (NKA) and V-ATPase expression in these tissues following cold acclimation. Here we quantify the effect of cold acclimation (one week at 12°C) on active transport in the ionoregulatory organs of adult Gryllus pennsylvanicus field crickets...
November 13, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29145262/management-of-radiation-induced-rectovesical-fistula-in-a-woman-using-ileum-a-case-report-and-review-of-the-literature
#14
Qiqi Mao, Jindan Luo, Jiajie Fang, Hai Jiang
BACKGROUND: Radiation-induced rectovesical fistulas (RVFs) require the most demanding treatment. We presented a rare case of postradiation RVF in a woman repaired with ileum. CASE PRESENTATION: A 49-year-old women was referred to our department for fecaluria and dysuria after radiation for cervical cancer. The voiding cystourethrography demonstrated a large RVF. A segment of ileum was separated into 2 parts for the simultaneous reconstruction of bladder and rectum, which led to a permanently closed fistula...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143306/long-term-evaluation-of-painful-symptoms-and-fertility-after-surgery-for-large-rectovaginal-endometriosis-nodule-a-retrospective-study
#15
Nicolas Bourdel, Aurélie Comptour, Paméla Bouchet, Anne-Sophie Gremeau, Jean-Luc Pouly, Karem Slim, Bruno Pereira, Michel Canis
Optimal surgical treatment of rectovaginal endometriosis remains a controversial topic. The objective of this study was to evaluate long term postoperative outcomes after rectal shaving or colorectal resection for rectovaginal endometriosis MATERIAL AND METHODS: 195 patients underwent surgery (172 managed by shaving, 23 by colorectal resection) between January 2000 and June 2013 for rectovaginal endometriosis (>2cm) involving at least the serosa of the rectum. Primary outcome measures were pain and fertility...
November 15, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29142523/steroid-refractory-extensive-enteritis-complicated-by-ulcerative-colitis-successfully-treated-with-adalimumab
#16
Shinji Okabayashi, Taku Kobayashi, Tomohisa Sujino, Ryo Ozaki, Satoko Umeda, Takahiko Toyonaga, Eiko Saito, Masaru Nakano, Maria Carla Tablante, Shojiroh Morinaga, Toshifumi Hibi
Extracolonic involvement of the gastrointestinal tract is extremely uncommon in ulcerative colitis (UC) and rarely found in the upper gastrointestinal tract or in postoperative cases since it typically responds to steroids. Here we report a case of UC complicated by extensive ileal inflammation that was refractory to steroids. A 20-year-old man was diagnosed with UC of typical pancolitis without ileal involvement and started treatment with pH-dependent mesalazine and oral prednisolone. Although his symptoms transiently resolved, the condition flared when the steroid dose was tapered down...
October 2017: Intestinal Research
https://www.readbyqxmd.com/read/29140326/photoacoustic-endomicroscopy-based-on-a-mems-scanning-mirror
#17
Heng Guo, Chaolong Song, Huikai Xie, Lei Xi
In this Letter, we present a high-resolution photoacoustic endomicroscopy probe based on a microelectromechanical systems (MEMS) scanning mirror. The built-in optical assembly consists of a 0.7 mm graded-index (GRIN) lens for light focusing and a ϕ1  mm MEMS mirror to reflect and scan the beam. A miniaturized unfocused ultrasound transducer with a center frequency of 10 MHz is used for photoacoustic detection. Sharp blades, carbon fibers, and black tapes were utilized to evaluate the performance of the system...
November 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/29138700/retroperitoneal-solitary-fibrous-tumor-a-patternless-tumor
#18
D Myoteri, D Dellaportas, C Nastos, I Gioti, G Gkiokas, E Carvounis, T Theodosopoulos
Introduction: Solitary fibrous tumor is a rare type of mesenchymal, spindle-cell tumor reported mostly in the pleura. Retroperitoneal occurrence is rare and histopathological diagnosis is challenging. Case Presentation: A 55-year-old woman with nonspecific abdominal pain was found to have a retroperitoneal/pelvic mass adjacent to the upper rectum. The patient underwent surgical resection in clear margins of this pelvic tumor, entering the total mesenteric excision surgical plane...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29138380/-three-patients-with-gastric-cancer-who-underwent-surgery-during-ramucirumab-treatment
#19
Hayato Omori, Sadayuki Kawai, Rie Makuuchi, Tomoyuki Irino, Masanori Tokunaga, Yutaka Tanizawa, Etsuro Bando, Taiichi Kawamura, Hirofumi Yasui, Masanori Terashima
According to the REGARD and RAINBOW trials, ramucirumab(RAM)was introduced as second-line therapy for advanced or metastatic gastric cancer. RAM may impair wound healing due to the inhibition of angiogenesis; details on the postoperative course of patients who underwent surgery during RAM treatment remain unclear. Between 2011 and 2016, 93 patients with incurable gastric cancer were treated with RAM in our institute. Among them, 3 patients underwent surgery after RAM treatment. Case 1: A 74-year-old man with liver metastasis from gastric cancer was treated with a paclitaxel(PTX)plus RAM regimen...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29138372/-lower-g-i-colon-and-rectum-cancer-updated-japanese-guidelines-in-colon-and-rectum-cancer
#20
Kei Muro
No abstract text is available yet for this article.
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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