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https://www.readbyqxmd.com/read/28214872/higher-numbers-of-t-bet-tumor-infiltrating-lymphocytes-associate-with-better-survival-in-human-epithelial-ovarian-cancer
#1
Yun Xu, Lujun Chen, Bin Xu, Yuqi Xiong, Min Yang, Xiaohui Rui, Liangrong Shi, Changping Wu, Jingting Jiang, Binfeng Lu
BACKGROUND/AIMS: T-bet, a member of the T-box family of transcription factors, is a key marker of type I immune response within the tumor microenvironment, and has been previously reported by us to serve as an important prognostic indicator for human gastric cancer patients and a potential biomarker for immunotherapy. In the present study, we aimed to assess the clinical significance and prognostic value of T-bet+ tumor-infiltrating lymphocytes in human epithelial ovarian cancer. METHODS: The immunohistochemistry was used to analyze the infiltration density of T-bet+ lymphoid cells in human epithelial ovarian cancer tissues, and the flow cytometry analysis was used to further analyze the presence of T-bet+ tumor-infiltrating lymphocytes subgroups in cancer tissues...
January 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28213942/pge2-ep4-attenuated-mucosal-injury-via-%C3%AE-arr1-src-egfr-mediated-proliferation-in-portal-hypertensive-gastropathy
#2
Siwei Tan, Xiaoliang Chen, Minyi Xu, Xiaoli Huang, Huiling Liu, Jie Jiang, Yu Lu, Xiaojie Peng, Bin Wu
BACKGROUND AND PURPOSE: Portal hypertensive gastropathy (PHG) is a serious complication of liver cirrhosis and a potential cause of bleeding in patients associated with cirrhosis. Suppressed mucosal epithelial proliferation is a crucial pathological characteristic of PHG. Our studies demonstrated an important role of prostaglandin E2 (PGE2 ) and its E-type prostanoid 4 (EP4 ) receptor in the promotion of mucosal proliferation. However, whether β-arrestin1 (β-arr1), a well-established mediator of G-protein-coupled receptors (GPCRs), is involved in the PGE2 /EP4 -mediated mucosal proliferation complex in PHG remains unclear...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28213714/-current-biomarkers-for-gastric-cancer
#3
G B Baretton, D E Aust
Gastric cancer is still a relevant malignant disease with high morbidity and mortality. Current molecular genetic data show that gastric cancer, as other solid tumors as well, is not a single entity but consists of several molecular subtypes of gastric cancer with diverse biology. The increasing understanding of molecular pathways is the basis for innovative therapies. These either directly target altered signaling pathways or genes in tumor cells or as in immune checkpoint inhibitors, indirectly target tumor cells by blocking tumor-induced immune inhibition leading to improvement in the prognosis...
February 17, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28212679/histopathological-study-of-cardiac-lesions-in-methamphetamine-poisoning-related-deaths
#4
Maryam Akhgari, Homeira Mobaraki, Afshar Etemadi-Aleagha
BACKGROUND: Methamphetamine abuse is a worldwide health concern. Methamphetamine causes health hazards in many vital organs. It can cause damage to cardiac tissue via catecholamines release. Methamphetamine related deaths are becoming one of the most important problems in Iran. The purpose of the present study was to determine cardiac pathology in methamphetamine poisoning-related deaths. METHODS: The study included 100 cases of methamphetamine poisoning-related deaths and 100 cases as control group...
February 17, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28212112/cancer-as-robust-intrinsic-state-shaped-by-evolution-a-key-issues-review
#5
Ruoshi Yuan, Xiaomei Zhu, Gaowei Wang, Site Li, Ping Ao
Cancer is a complex disease: its pathology cannot be properly understood in terms of independent players-genes, proteins, molecular pathways, or their simple combinations. This is similar to many-body physics of a condensed phase that many important properties are not determined by a single atom or molecule. The rapidly accumulating large 'omics' data also require a new mechanistic and global underpinning to organize for rationalizing cancer complexity. A unifying and quantitative theory was proposed by some of the present authors that cancer is a robust state formed by the endogenous molecular-cellular network, which is evolutionarily built for the developmental processes and physiological functions...
February 17, 2017: Reports on Progress in Physics
https://www.readbyqxmd.com/read/28210705/gastric-esd-may-be-useful-as-accurate-staging-and-decision-of-future-therapeutic-strategy
#6
Ai Fujimoto, Osamu Goto, Toshihiro Nishizawa, Yasutoshi Ochiai, Joichiro Horii, Tadateru Maehata, Teppei Akimoto, Satoshi Kinoshita, Seiji Sagara, Motoki Sasaki, Toshio Uraoka, Naohisa Yahagi
Background and study aims We sometimes perform gastric endoscopic submucosal dissection (ESD) for total pathologic diagnosis when preoperative diagnosis is difficult. In the present study we analyzed the treatment outcomes and adverse events of diagnostic ESD for early gastric cancer (EGC). Patients and methods We conducted a retrospective analysis of 18 consecutive cases of EGC in 18 patients with a suspected out-of-indication diagnosis who underwent diagnostic ESD, between June 2010 and November 2014...
February 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28206938/a-review-of-sleeve-gastrectomy-specimen-histopathology
#7
Luke A Kinsinger, James C Garber, Oliver Whipple
With the increasing popularity of sleeve gastrectomy, many stomach specimens are being evaluated. Understanding the significance and treatment for unexpected pathology is important. This study examines the incidence of relevant histopathology of sleeve gastrectomy specimens. It evaluates previous data for each histopathology and provides recommendations for treatment. In this study, a retrospective review was performed for 241 patients who underwent sleeve gastrectomy from 2009 to 2014 at a single institution...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28206814/biomarkers-in-tumor-microenvironment-upregulation-of-fibroblast-activation-protein-%C3%AE-correlates-with-gastric-cancer-progression-and-poor-prognosis
#8
Mengmou Hu, Chengjia Qian, Ziwei Hu, Bojian Fei, Haibo Zhou
Gastric cancer is the third leading cause of cancer-related mortality worldwide. Recent evidence points to importance of cross talk between cancer cells and the surrounding stroma on gastric cancer progression. Tumor microenvironment biomarkers thus represent a new opportunity for diagnostics innovation. Reactive stromal fibroblasts selectively express the fibroblast activation protein alpha (FAP-α), a homodimeric integral membrane gelatinase that belongs to the serine protease family. We report here that FAP-α expression is significantly elevated in gastric cancer samples by more than fivefold (p < 0...
January 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28205418/pediatric-neuroendocrine-carcinoid-tumors-management-pathology-and-imaging-findings-in-a-pediatric-referral-center
#9
Andrew J Degnan, Shannon Tocchio, Waleed Kurtom, Sameh S Tadros
BACKGROUND: While neuroendocrine (carcinoid) tumors are increasingly recognized in the adult population, they are often not suspected in children. PROCEDURE: Retrospective review of all well-differentiated neuroendocrine (carcinoid) tumors was performed based on pathology reports from a quaternary pediatric medical center between January 2003 and June 2016. Clinical presentations, treatment approaches, imaging findings, and outcomes were reviewed and analyzed. RESULTS: A total of 45 cases of pathology-proven carcinoid tumor were reported with an average age of 14...
February 16, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28203570/multifocal-gastric-ulcers-caused-by-diffuse-large-b-cell-lymphoma-in-a-patient-with-significant-weight-loss
#10
Mark A Gromski, Jennifer L Peng, Jiehao Zhou, Howard C Masuoka, Attaya Suvannasankha, Suthat Liangpunsakul
Primary gastrointestinal (GI) lymphoma is a heterogeneous disease with varied clinical presentations. The stomach is the most common GI site and accounts for 70% to 75% of GI lymphomas. We present a patient with gastric diffuse large B cell lymphoma (DLBCL) who presented with significant weight loss, early satiety, and multifocal ulcerated gastric lesions. Esophagoduodenoscopy should be performed in patients presenting with warning symptoms as in our case. Diagnosis is usually made by endoscopic biopsies. Multiple treatment modalities including surgery, radiotherapy, and chemotherapy have been used...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28203166/gastrointestinal-stromal-tumour-with-synchronous-bone-metastases-a-case-report-and-literature-review
#11
Philippe Rochigneux, Lénaig Mescam-Mancini, Delphine Perrot, Erwan Bories, Laurence Moureau-Zabotto, Anthony Sarran, Jérôme Guiramand, François Bertucci
Gastrointestinal stromal tumours (GISTs) are mesenchymal tumours of the digestive tract, derived from Cajal interstitial cells. Bone metastases are very rare, and there is no consensus regarding their treatment. Here, we present the unusual case of a 66-year-old man with a gastric GIST with synchronous bone and liver metastases, fully documented at the pathological and molecular levels with a KIT exon 11 mutation. After 9 months of imatinib, the scanner showed a 33% partial response of target lesions. We also review the literature and describe the characteristics, treatment, and outcome of all cases previously reported...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28201999/effect-of-myeloid-differentiation-primary-response-gene-88-on-expression-profiles-of-genes-during-the-development-and-progression-of-helicobacter-induced-gastric-cancer
#12
Ivonne Lozano-Pope, Arnika Sharma, Michael Matthias, Kelly S Doran, Marygorret Obonyo
BACKGROUND: Gastric cancer is one of the most common and lethal type of cancer worldwide. Infection with Helicobacter pylori (H. pylori) is recognized as the major cause of gastric cancer. However, it remains unclear the mechanism by which Helicobacter infection leads to gastric cancer. Furthermore, the underlying molecular events involved during the progression of Helicobacter infection to gastric malignancy are not well understood. In previous studies, we demonstrated that that H. felis-infected Myd88 (-/-) mice exhibited dramatic pathology and an accelerated progression to gastric dysplasia; however, the MyD88 downstream gene targets responsible for this pathology have not been described...
February 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28199988/clinicopathologic-and-prognostic-significance-of-human-epidermal-growth-factor-receptor-in-patients-with-gastric-cancer-an-update-meta-analysis
#13
Zhiqiao Zhang, Hongfeng Tang, Jixin Lin, Yunzhao Hu, Guanying Luo, Zhaowen Luo, Canchang Cheng, Peng Wang
PURPOSE: The aim of this update meta-analysis was to clarify the clinicopathologic and prognostic significance of human epidermal growth factor receptor(EGFR) expression in gastric cancer patients. EXPERIMENTAL DESIGN: Several electronic databases were searched from January 1970 to May 2016. The odds ratio (OR) was calculated to assess the association between EGFR expression and pathological parameters. The hazard ratio (HR) and 95% CI were calculated to explore the relationship between EGFR expression and overall survival...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28194522/a-prospective-multi-institutional-validity-study-to-evaluate-the-accuracy-of-clinical-diagnosis-of-pathological-stage-iii-gastric-cancer-jcog1302a
#14
Takeo Fukagawa, Hitoshi Katai, Junki Mizusawa, Kenichi Nakamura, Takeshi Sano, Masanori Terashima, Seiji Ito, Takaki Yoshikawa, Norimasa Fukushima, Yasuyuki Kawachi, Takahiro Kinoshita, Yutaka Kimura, Hiroshi Yabusaki, Yasunori Nishida, Yoshiaki Iwasaki, Sang-Woong Lee, Takashi Yasuda, Mitsuru Sasako
BACKGROUND: Neoadjuvant chemotherapy (NAC) followed by radical surgery is a promising strategy to improve survival of patients with stage III gastric cancer, but is associated with the risk of preoperative overdiagnosis by which patients with early disease may receive unnecessary intensive chemotherapy. METHODS: We assessed the validity of a preoperative diagnostic criterion in a prospective multicenter study. Patients with gastric cancer with a clinical diagnosis of T2/T3/T4, M0, except for diffuse large tumors and extensive bulky nodal disease, were eligible...
February 13, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28194260/anti-bacterial-effects-of-enzymatically-isolated-sialic-acid-from-glycomacropeptide-in-a-helicobacter-pylori-infected-murine-model
#15
Hye-Ji Noh, Hong Bum Koh, Hee-Kyoung Kim, Hyang Hyun Cho, Jeongmin Lee
BACKGROUND/OBJECTIVES: Helicobacter pylori (H. pylori) colonization of the stomach mucosa and duodenum is the major cause of acute and chronic gastroduodenal pathology in humans. Efforts to find effective anti-bacterial strategies against H. pylori for the non-antibiotic control of H. pylori infection are urgently required. In this study, we used whey to prepare glycomacropeptide (GMP), from which sialic acid (G-SA) was enzymatically isolated. We investigated the anti-bacterial effects of G-SA against H...
February 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28188442/patients-with-mccune-albright-syndrome-have-a-broad-spectrum-of-abnormalities-in-the-gastrointestinal-tract-and-pancreas
#16
Laura D Wood, Michaël Noë, Wenzel Hackeng, Lodewijk A A Brosens, Feriyl Bhaijee, Marija Debeljak, Jun Yu, Masaya Suenaga, Aatur D Singhi, Atif Zaheer, Alison Boyce, Cemre Robinson, James R Eshleman, Michael G Goggins, Ralph H Hruban, Michael T Collins, Anne Marie Lennon, Elizabeth A Montgomery
McCune-Albright Syndrome (MAS) is a rare sporadic syndrome caused by post-zygotic mutations in the GNAS oncogene, leading to constitutional mosaicism for these alterations. Somatic activating GNAS mutations also commonly occur in several gastrointestinal and pancreatic neoplasms, but the spectrum of abnormalities in these organs in patients with MAS has yet to be systematically described. We report comprehensive characterization of the upper gastrointestinal tract in seven patients with MAS and identify several different types of polyps, including gastric heterotopia/metaplasia (7/7), gastric hyperplastic polyps (5/7), fundic gland polyps (2/7), and a hamartomatous polyp (1/7)...
February 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28188052/-saccharomyces-cerevisiae-invasive-infection-the-first-reported-case-in-morocco
#17
A Maleb, E Sebbar, M Frikh, S Boubker, A Moussaoui, A El Mekkaoui, W Khannoussi, G Kharrasse, B Belefquih, A Lemnouer, Z Ismaili, M Elouennass
Saccharomyces cerevisiae is a cosmopolitan yeast, widely used in agro-alimentary and pharmaceutical industry. Its impact in human pathology is rare, but maybe still underestimated compared to the real situation. This yeast is currently considered as an emerging and opportunistic pathogen. Risk factors are immunosuppression and intravascular device carrying. Fungemias are the most frequent clinical forms. We report the first case of S. cerevisiae invasive infection described in Morocco, and to propose a review of the literature cases of S...
February 7, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28187877/timing-of-initiation-of-adjuvant-chemotherapy-for-gastric-cancer-a-case-matched-comparison-study-of-laparoscopic-vs-open-surgery
#18
A Kaito, T Kinoshita, K Shitara, H Shibasaki, T Nishida
BACKGROUND: Laparoscopic gastrectomy (LG) is reported to be associated with faster recovery than open gastrectomy (OG); however, the influence of the surgical approach on initiation timing of adjuvant chemotherapy (AC) remains unclear. METHODS: This was a single-institutional retrospective observational study. Patients with pathological stage II/III gastric cancer undergoing LG with D2 lymphadenectomy (LG group: n = 74) were matched 1:1 with patients selected from 214 similar patients undergoing OG (OG group: n = 74), identically matching gender, age, pathological stage, and type of gastrectomy, and comparing AC initiation timing between the two groups...
January 29, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28181138/endoscopically-guided-laparoscopic-gastrojejunostomy-tube-placement-for-patients-with-distal-esophageal-stents
#19
Marlieke E Nussenbaum, Edward Y Chan, Min P Kim, Puja G Khaitan
Patients with distal esophageal pathology such as perforation, trachea-esophageal fistulae, and/ or obstructing gastroesophageal junction tumor present a challenging situation in terms of feeding access where an esophageal stent is placed across the gastroesophageal junction. In order to allow simultaneous gastric decompression and post-pyloric feeds without significant reflux up through the stent, a gastrojejunostomy (GJ) tube is a viable option. We hereby describe a hybrid approach to placing these GJ tubes in this cohort of patients using simultaneous laparoscopy, endoscopy, and fluoroscopy with minimal manipulation of the stent itself...
February 8, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28176023/postoperative-weight-loss-leads-to-poor-survival-through-poor-s-1-efficacy-in-patients-with-stage-ii-iii-gastric-cancer
#20
Toru Aoyama, Tsutomu Sato, Yukio Maezawa, Kazuki Kano, Tsutomu Hayashi, Takanobu Yamada, Norio Yukawa, Takashi Oshima, Yasushi Rino, Munetaka Masuda, Takashi Ogata, Haruhiko Cho, Takaki Yoshikawa
AIMS: We previously demonstrated that body weight loss (BWL) at one month after gastrectomy, a common finding after surgery for gastric cancer, was an independent risk factor for the continuation of adjuvant chemotherapy with S-1. However, it is unclear whether BWL after gastrectomy leads to poor survival through poor compliance to adjuvant chemotherapy with S-1. METHODS: We conducted this follow-up study in the same cohort as our previous study. Overall survival (OS) and recurrence-free survival (RFS) were examined in 103 patients who underwent curative D2 surgery and were pathologically diagnosed with stage II or III gastric cancer, and who received postoperative adjuvant chemotherapy with S-1 between June 2002 and December 2011...
February 7, 2017: International Journal of Clinical Oncology
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