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https://www.readbyqxmd.com/read/28630876/a-dosimetric-comparison-of-dose-escalation-with-simultaneous-integrated-boost-for-locally-advanced-non-small-cell-lung-cancer
#1
Wenjuan Yang, Biao Zeng, Yanfang Qiu, Jianfeng Tan, Shilei Xu, Yilong Cai, Yujuan Zhou, Zhigang Liu, Junming Luo, Hui Wang
BACKGROUND: Many studies have demonstrated that a higher radiotherapy dose is associated with improved outcomes in non-small-cell lung cancer (NSCLC). We performed a dosimetric planning study to assess the dosimetric feasibility of intensity-modulated radiation therapy (IMRT) with a simultaneous integrated boost (SIB) in locally advanced NSCLC. METHODS: We enrolled twenty patients. Five different dose plans were generated for each patient. All plans were prescribed a dose of 60 Gy to the planning tumor volume (PTV)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28626398/esophageal-metastasis-from-rectal-cancer-successfully-treated-with-fluorouracil-based-chemotherapy-with-bevacizumab-a-case-report-and-review-of-the-literature
#2
Sho Watanabe, Atsuo Takashima, Hirokazu Taniguchi, Yusaku Tanaka, Shoko Nakamura, Natsuko Okita, Yoshitaka Honma, Satoru Iwasa, Ken Kato, Tetsuya Hamaguchi, Narikazu Boku
Esophageal metastasis from colorectal carcinoma is uncommon, and diagnosis of esophageal metastasis is difficult. We report a case of a 54-year-old woman with postoperative recurrence of rectal cancer metastasizing to the esophagus. She underwent rectectomy and adjuvant chemotherapy with fluorouracil, leucovorin plus oxaliplatin for stage IIIB rectal cancer. Three years later, she presented with dysphagia and cough. Computed tomography showed thickening of the esophagus wall, enlargement of the lymph nodes in the mediastinum and abdomen, and ground-glass opacities in the right lung...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28622688/integration-of-metabolomics-transcriptomics-and-microrna-expression-profiling-reveals-a-mir-143-hk2-glucose-network-underlying-zinc-deficiency-associated-esophageal-neoplasia
#3
Louise Y Fong, Ruiyan Jing, Karl J Smalley, Cristian Taccioli, Johannes Fahrmann, Dinesh K Barupal, Hansjuerg Alder, John L Farber, Oliver Fiehn, Carlo M Croce
Esophageal squamous cell carcinoma (ESCC) in humans is a deadly disease associated with dietary zinc (Zn)-deficiency. In the rat esophagus, Zn-deficiency induces cell proliferation, alters mRNA and microRNA gene expression, and promotes ESCC. We investigated whether Zn-deficiency alters cell metabolism by evaluating metabolomic profiles of esophageal epithelia from Zn-deficient and replenished rats vs sufficient rats, using untargeted gas chromatography time-of-flight mass spectrometry (n = 8/group). The Zn-deficient proliferative esophagus exhibits a distinct metabolic profile with glucose down 153-fold and lactic acid up 1...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28621689/age-adjusted-charlson-comorbidity-index-score-as-predictor-of-survival-of-patients-with-digestive-system-cancer-who-have-undergone-surgical-resection
#4
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...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28617891/esophageal-adenocarcinoma-with-enteroblastic-differentiation-arising-in-ectopic-gastric-mucosa-in-the-cervical-esophagus-a-case-report-and-literature-review
#5
Ryosuke Gushima, Rei Narita, Takashi Shono, Hideaki Naoe, Takashi Yao, Yutaka Sasaki
BACKGROUND: Adenocarcinoma with enteroblastic differentiation is a subtype of alpha-fetoprotein (AFP) producing adenocarcinoma. This type of tumor is associated with a poor prognosis and is prone to metastasize. Esophageal adenocarcinoma with enteroblastic differentiation is extremely rare. CASE PRESENTATION: The patient was a 65-year-old woman who was referred to our hospital with dysphagia. Endoscopic examination revealed an elevated lesion 20mm in diameter at 17cm from the upper incisors...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28616606/feasibility-and-safety-of-modified-inverted-t-shaped-method-using-linear-stapler-with-movable-cartridge-fork-for-esophagojejunostomy-following-laparoscopic-total-gastrectomy
#6
Kenoki Ohuchida, Eishi Nagai, Taiki Moriyama, Koji Shindo, Tatsuya Manabe, Takao Ohtsuka, Shuji Shimizu, Masafumi Nakamura
BACKGROUND: We previously reported the use of an inverted T-shaped method to obtain a suitable view for hand sewing to close the common entry hole when the linear stapler was fired for esophagojejunostomy after laparoscopic total gastrectomy (LTG). This conventional method involved insertion of the fixed cartridge fork to the Roux limb and the fine movable anvil fork to the esophagus to avoid perforation of the jejunum. However, insertion of the movable anvil fork to the esophagus during this procedure often requires us to strongly push down the main body of the stapler with the fixed cartridge fork to bring the direction of the anvil fork in line with the direction of the long axis of the esophagus while controlling the opening of the movable anvil fork...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28604085/tension-pneumothorax-after-percutaneous-tracheostomy
#7
Sarina Matsumura, Naotaka Kishimoto, Tomio Iseki, Yoshihiro Momota
A 76-year-old woman with right mandibular gingival cancer was scheduled for surgery. A percutaneous tracheostomy kit was used for tracheostomy under intravenous sedation. After puncturing the cricothyroid membrane, a dilator was inserted along a guidewire. Bucking was observed at the time of insertion of the dilator, despite intratracheal lidocaine spray applied before insertion. After that, the tracheostomy tube was inserted, but no capnographic waveforms appeared when the tube was connected to the anesthesia circuit...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/28599425/decreased-expression-of-cd63-tetraspanin-protein-predicts-elevated-malignant-potential-in-human-esophageal-cancer
#8
Xiaojing Lai, Qing Gu, Xia Zhou, Wei Feng, Xiao Lin, Yan He, Jinming Cao, Pengfei Liu, Huojun Zhang, Xiao Zheng
The tetraspanin CD63 has been described to have critical roles in multiple biological processes, including tumorigenesis and metastasis in several types of cancer. However, its role in esophageal carcinoma (EC) has not been reported. In the current study, immunohistochemistry was used to investigate CD63 expression in 106 esophageal cancer samples, 49 adjacent esophagus tissues and 17 normal esophagus mucosa tissues. The results revealed that the overexpression of CD63 was observed in esophageal cancer samples and negatively correlated with tumor stage and lymph node metastasis...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28594883/qat-use-and-esophageal-cancer-in-ethiopia-a-pilot-case-control-study
#9
Maria E Leon, Mathewos Assefa, Endale Kassa, Abate Bane, Tufa Gemechu, Yared Tilahun, Nigatu Endalafer, Gilles Ferro, Kurt Straif, Elizabeth Ward, Abraham Aseffa, Joachim Schüz, Ahmedin Jemal
BACKGROUND: Qat (Catha edulis) chewing is reported to induce lesions in the buccal mucosa, irritation of the esophagus, and esophageal reflux. Case series suggest a possible etiological role in oral and esophageal cancers. This pilot study aimed to generate preliminary estimates of the magnitude and direction of the association between qat use and esophageal cancer (EC) risk and to inform the logistics required to conduct a multi-center case-control study. METHODS: Between May 2012 and May 2013, 73 EC cases (including 12 gastro-esophageal junction cases) and 133 controls matched individually on sex, age, and residence were enrolled at two endoscopy clinics and a cancer treatment hospital in Addis Ababa...
2017: PloS One
https://www.readbyqxmd.com/read/28594397/establishment-of-a-quick-and-highly-accurate-breath-test-for-aldh2-genotyping
#10
Ikuo Aoyama, Shinya Ohashi, Yusuke Amanuma, Kenshiro Hirohashi, Ayaka Mizumoto, Makiko Funakoshi, Mihoko Tsurumaki, Yukie Nakai, Katsuyuki Tanaka, Mariko Hanada, Aki Uesaka, Tsutomu Chiba, Manabu Muto
OBJECTIVES: Acetaldehyde, the first metabolite of ethanol, is a definite carcinogen for the esophagus, head, and neck; and aldehyde dehydrogenase 2 (ALDH2) is a mitochondrial enzyme that catalyzes the metabolism of acetaldehyde. The ALDH2 genotype exists as ALDH2*1/*1 (active ALDH2), ALDH2*1/*2 (heterozygous inactive ALDH2), and ALDH2*2/*2 (homozygous inactive ALDH2). Many epidemiological studies have reported that ALDH2*2 carriers are at high risk for esophageal or head and neck squamous cell carcinomas by habitual drinking...
June 8, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28593646/cancer-incidence-and-mortality-a-cohort-study-in-china-2008-2013
#11
Rui Pan, Meng Zhu, Canqing Yu, Jun Lv, Yu Guo, Zheng Bian, Ling Yang, Yiping Chen, Zhibin Hu, Zhengming Chen, Liming Li, Hongbing Shen
The National Central Cancer Registry of China (NCCR) was the only available source of cancer monitoring in China, even though only about 70% of cancer registration sites were qualified by now. In this study, based on a national large prospective cohort-the China Kadoorie Biobank (CKB), we aimed to provide additional cancer statistics and compare the difference of cancer burden between urban and rural areas of China. A total of 497,693 cancer-free participants aged 35-74 years were recruited and successfully followed up from 2004 to 2013 in 5 urban and 5 rural areas across China...
June 8, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28593188/barrett-s-stem-cells-as-a-unique-and-targetable%C3%A2-entity
#12
Wa Xian, Frank McKeon
Although metaplasias have always attracted because of their strangeness, it is now clear they represent precursors for some of the most intractable human cancers. Despite this notoriety, they remain curiously understudied, and even their origins have been the subject of acrimonious debate stretching back to Virchow in the 19th century. Barrett's esophagus, with its high incidence, easy endoscopic access, and strong link to esophageal adenocarcinoma, would seem an ideal opportunity to address the origin problem...
July 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28591845/severe-esophagitis-associated-with-cytomegalovirus-during-concurrent-chemoradiotherapy-for-esophageal-cancer
#13
Rihito Aizawa, Shigemi Matsumoto, Yu Uneno, Yoshitaka Nishikawa, Yoshinao Ozaki, Yukiko Mori, Masashi Kanai, Yuichi Ishida, Katsuyuki Sakanaka, Masahiro Hiraoka, Manabu Muto
Although radiation esophagitis is one of the most common adverse events that occurs during chemoradiotherapy (CRT) in patients with esophageal cancer, CRT-associated cytomegalovirus (CMV) esophagitis is rare. CMV esophagitis typically occurs in patients with an immunosuppressed status. Here we report a case of CMV esophagitis during CRT initially treated as radiation esophagitis. A 64-year-old man with mid-thoracic esophageal cancer was admitted to our hospital with clinical stage cT4bN1M1 (supraclavicular lymph node metastasis) Stage IV according to the UICC ver...
June 7, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28578276/decoding-nadph-oxidase-4-expression-in-human-tumors
#14
Jennifer L Meitzler, Hala R Makhlouf, Smitha Antony, Yongzhong Wu, Donna Butcher, Guojian Jiang, Agnes Juhasz, Jiamo Lu, Iris Dahan, Pidder Jansen-Dürr, Haymo Pircher, Ajay M Shah, Krishnendu Roy, James H Doroshow
NADPH oxidase 4 (NOX4) is a redox active, membrane-associated protein that contributes to genomic instability, redox signaling, and radiation sensitivity in human cancers based on its capacity to generate H2O2 constitutively. Most studies of NOX4 in malignancy have focused on the evaluation of a small number of tumor cell lines and not on human tumor specimens themselves; furthermore, these studies have often employed immunological tools that have not been well characterized. To determine the prevalence of NOX4 expression across a broad range of solid tumors, we developed a novel monoclonal antibody that recognizes a specific extracellular region of the human NOX4 protein, and that does not cross-react with any of the other six members of the NOX gene family...
May 26, 2017: Redox Biology
https://www.readbyqxmd.com/read/28577766/beyond-dysplasia-grade-the-role-of-biomarkers-in-stratifying-risk
#15
REVIEW
Kerry B Dunbar, Rhonda F Souza
Gastroenterology society guidelines recommend endoscopic surveillance as a means to detect early stage cancer in Barrett's esophagus. However, the incidence of esophageal adenocarcinoma in Western countries continues to increase, suggesting that this strategy may be inadequate. Current surveillance methods rely on the endoscopist's ability to identify suspicious areas of Barrett's esophagus to biopsy, random biopsies, and on the histopathologic diagnosis of dysplasia. This review highlights the challenges of using dysplasia to stratify cancer risk and addresses the development and use of molecular biomarkers and in vivo molecular imaging to detect early neoplasia in Barrett's esophagus...
July 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28577765/the-role-of-adjunct-imaging-in-endoscopic-detection-of-dysplasia-in-barrett-s-esophagus
#16
REVIEW
Pujan Kandel, Michael B Wallace
Advances in imaging technologies have demonstrated promise in early detection of dysplasia and cancer in Barrett's esophagus (BE). Optical chromoendoscopy, dye-based chromoendoscopy, and novel technologies have provided the opportunity to visualize the cellular and subcellular structures. Only narrow-band imaging and acetic acid chromoendoscopy have reached benchmarks for clinical use. Volumetric laser endomicroscopy and molecular imaging are not established for routine use. Best practice in management of BE should be focused on careful endoscopic examination, resection, or ablation of the entire abnormal lesion, as well as the use of available imaging technique that has good diagnostic accuracy...
July 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28577764/effectiveness-and-cost-effectiveness-of-endoscopic-screening-and%C3%A2-surveillance
#17
REVIEW
Nina Saxena, John M Inadomi
Guidelines for the screening and surveillance of Barrett's esophagus continue to evolve as the incidence of esophageal adenocarcinoma increases, identification of individuals at highest risk for cancer improves, and management of dysplasia evolves. This article reviews related studies and economic analyses. Advances in diagnosis offer promising strategies to help focus screening efforts on those individuals who are most likely to develop esophageal adenocarcinoma.
July 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28575250/characterization-of-tissue-chromogranin-a-cga-immunostaining-and-clinicohistopathological-changes-for-the-125-chinese-patients-with-primary-small-cell-carcinoma-of-the-esophagus
#18
J W Ku, D Y Zhang, X Song, X M Li, X K Zhao, S Lv, S J Hu, R Cheng, F Y Zhou, H F Wu, L D Wang
The rarity of primary small cell carcinoma of the esophagus (PSCE) has limited the clinical feature and survival analysis with large sample size. Tissue chromogranin A (CgA) protein expression has been reported to be a useful biomarker for diagnosing PSCE. Interestingly, recent studies have indicated tissue CgA as a significant prognostic marker in multiple human cancers, but without PSCE. The present study, thus, was undertaken to characterize the clinicopathological changes and to evaluate the associations of tissue CgA expression with clinical response on Chinese PSCE patients...
August 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28572084/ductular-and-proliferative-response-of-esophageal-submucosal-glands-in-a-porcine-model-of-esophageal-injury-and-repair
#19
Leandi Krüger, Liara M Gonzalez, Tiffany A Pridgen, Shannon J McCall, Richard von Furstenberg, Ivan Harnden, Gwendolyn E Carnighan, Abigail M Cox, Anthony T Blikslager, Katherine Schuver Garman
Esophageal injury is a risk factor for diseases such as Barrett's Esophagus (BE) and Esophageal Adenocarcinoma. In order to improve understanding of signaling pathways associated with both normal and abnormal repair, animal models are needed. Traditional rodent models of esophageal repair are limited by the absence of esophageal submucosal glands (ESMGs), which are present in human esophagus. Previously, we identified acinar ductal metaplasia in human ESMGs in association with both esophageal injury and cancer...
June 1, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28560244/toward-real-time-quantification-of-fluorescence-molecular-probes-using-target-background-ratio-for-guiding-biopsy-and-endoscopic-therapy-of-esophageal-neoplasia
#20
Yang Jiang, Yuanzheng Gong, Joel H Rubenstein, Thomas D Wang, Eric J Seibel
Multimodal endoscopy using fluorescence molecular probes is a promising method of surveying the entire esophagus to detect cancer progression. Using the fluorescence ratio of a target compared to a surrounding background, a quantitative value is diagnostic for progression from Barrett's esophagus to high-grade dysplasia (HGD) and esophageal adenocarcinoma (EAC). However, current quantification of fluorescent images is done only after the endoscopic procedure. We developed a Chan-Vese-based algorithm to segment fluorescence targets, and subsequent morphological operations to generate background, thus calculating target/background (T/B) ratios, potentially to provide real-time guidance for biopsy and endoscopic therapy...
April 2017: Journal of Medical Imaging
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