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Proton pump inhibitors and cancer

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https://www.readbyqxmd.com/read/29152554/prevalence-of-clostridium-difficile-infection-in-patients-after-radical-cystectomy-and-neoadjuvant-chemotherapy
#1
Katherine J Cotter, Yunhua Fan, Gretchen K Sieger, Christopher J Weight, Badrinath R Konety
Background and Objectives: Clostridium Difficile is the most common cause of nosocomial infectious diarrhea. This study evaluates the prevalence and predictors of Clostridium Difficile infections in patients undergoing radical cystectomy with or without neoadjuvant chemotherapy. Methods: Retrospective chart review was performed of all patients undergoing cystectomy and urinary diversion at a single institution from 2011-2017. Infection was documented in all cases with testing for Clostridium Difficile polymerase chain reaction toxin B...
October 27, 2017: Bladder Cancer
https://www.readbyqxmd.com/read/29134635/ribociclib-bioavailability-is-not-affected-by-gastric-ph-changes-or-food-intake-in-silico-and-clinical-evaluations
#2
Tanay S Samant, Shyeilla Dhuria, Yasong Lu, Marc Laisney, Shu Yang, Arnaud Grandeury, Martin Mueller-Zsigmondy, Kenichi Umehara, Felix Huth, Michelle Miller, Caroline Germa, Mohamed Elmeliegy
Ribociclib (KISQALI®), a cyclin-dependent kinase 4/6 inhibitor approved for the first-line treatment of HR+/HER2- advanced breast cancer with an aromatase inhibitor, is administered with no restrictions on concomitant gastric pH-elevating agents or food intake. The influence of proton pump inhibitors (PPIs) on ribociclib bioavailability was assessed using (1) biorelevant media solubility, (2) physiologically based pharmacokinetic (PBPK) modeling, (3) non-compartmental analysis (NCA) of clinical trial data, and (4) population PK (PopPK) analysis...
November 14, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29129090/screening-and-prevention-strategies-and-endoscopic-management-of-early-esophageal-cancer
#3
James A Kim, Pari M Shah
Esophageal cancer is the 8th most common cancer worldwide and the 6th most common cause of cancer-related death. Its two main subtypes, esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC), have varying incidences globally, but recent decades have seen a demonstrated rise of EAC in Western countries whereas ESCC remains highly prevalent in Eastern Africa, Central Asia, and China. Screening interventions have focused on using endoscopy to identify Barrett's esophagus (BE) as a precursor to EAC, and squamous cell dysplasia prior to onset of ESCC...
October 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/29122616/practice-patterns-of-medications-for-patients-with-malignant-bowel-obstruction-using-a-nationwide-claims-database-and-the-association-between-treatment-outcomes-and-concomitant-use-of-h2-blockers-proton-pump-inhibitors-and-corticosteroids-with-octreotide
#4
Takaaki Minoura, Masato Takeuchi, Tatsuya Morita, Koji Kawakami
CONTEXT: Malignant bowel obstruction (MBO) impairs the quality of life in patients with advanced cancer. Octreotide, acid-suppressing medications such as H<sub>(2)</sub>-receptor antagonists (H<sub>(2)</sub> blockers) and proton pump inhibitors (PPIs), and corticosteroids are often used in combination for symptom control. OBJECTIVES: We evaluated the practice patterns of medications for patients hospitalized with MBO using a large claims database in Japan...
November 6, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/29098281/factors-affecting-the-association-of-proton-pump-inhibitors-and-capecitabine-efficacy-in-advanced-gastroesophageal-cancer
#5
Koen G A M Hussaarts, Roelof W F van Leeuwen, Ron H J Mathijssen
No abstract text is available yet for this article.
November 2, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29098276/factors-affecting-the-association-of-proton-pump-inhibitors-and-capecitabine-efficacy-in-advanced-gastroesophageal-cancer
#6
Lishi Wang, Boern Shan, Weikuan Gu
No abstract text is available yet for this article.
November 2, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29098275/factors-affecting-the-association-of-proton-pump-inhibitors-and-capecitabine-efficacy-in-advanced-gastroesophageal-cancer-reply
#7
Michael P Chu, Michael B Sawyer
No abstract text is available yet for this article.
November 2, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29098270/factors-affecting-the-association-of-proton-pump-inhibitors-and-capecitabine-efficacy-in-advanced-gastroesophageal-cancer
#8
Guo-Fu Li, Guo Yu, Yan Gong
No abstract text is available yet for this article.
November 2, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29095917/comparison-of-the-human-gastric-microbiota-in-hypochlorhydric-states-arising-as-a-result-of-helicobacter-pylori-induced-atrophic-gastritis-autoimmune-atrophic-gastritis-and-proton-pump-inhibitor-use
#9
COMPARATIVE STUDY
Bryony N Parsons, Umer Z Ijaz, Rosalinda D'Amore, Michael D Burkitt, Richard Eccles, Luca Lenzi, Carrie A Duckworth, Andrew R Moore, Laszlo Tiszlavicz, Andrea Varro, Neil Hall, D Mark Pritchard
Several conditions associated with reduced gastric acid secretion confer an altered risk of developing a gastric malignancy. Helicobacter pylori-induced atrophic gastritis predisposes to gastric adenocarcinoma, autoimmune atrophic gastritis is a precursor of type I gastric neuroendocrine tumours, whereas proton pump inhibitor (PPI) use does not affect stomach cancer risk. We hypothesised that each of these conditions was associated with specific alterations in the gastric microbiota and that this influenced subsequent tumour risk...
November 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29089382/long-term-proton-pump-inhibitors-and-risk-of-gastric-cancer-development-after-treatment-for-helicobacter-pylori-a-population-based-study
#10
Ka Shing Cheung, Esther W Chan, Angel Y S Wong, Lijia Chen, Ian C K Wong, Wai Keung Leung
OBJECTIVE: Proton pump inhibitors (PPIs) is associated with worsening of gastric atrophy, particularly in Helicobacter pylori (HP)-infected subjects. We determined the association between PPIs use and gastric cancer (GC) among HP-infected subjects who had received HP therapy. DESIGNS: This study was based on a territory-wide health database of Hong Kong. We identified adults who had received an outpatient prescription of clarithromycin-based triple therapy between year 2003 and 2012...
October 31, 2017: Gut
https://www.readbyqxmd.com/read/29067276/characteristics-of-clostridium-difficile-infection-in-patients-hospitalized-with-myelodysplastic-syndrome-or-acute-myelogenous-leukemia
#11
Kamini Shah, Bryan F Curtin, Christopher Chu, Daniel Hwang, Mark H Flasar, Erik von Rosenvinge
AIM: To evaluate factors associated with Clostridium difficile infection (CDI) and outcomes of CDI in the myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) population. METHODS: After IRB approval, all MDS/AML patients hospitalized at the University of Maryland Greenebaum Comprehensive Cancer Center between August 2011 and December 2013 were identified. Medical charts were reviewed for demographics, clinical information, development of CDI, complications of CDI, and mortality...
October 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29038303/f-actin-reorganization-by-v-atpase-inhibition-in-prostate-cancer
#12
Yamhilette Licon-Munoz, Vera Michel, Colleen A Fordyce, Karlett J Parra
The vacuolar ATPase (V-ATPase) proton pump sustains cellular pH homeostasis, and its inhibition triggers numerous stress responses. However, the cellular mechanisms involved remain largely elusive in cancer cells. We studied V-ATPase in the prostate cancer (PCa) cell line PC-3, which has characteristics of highly metastatic PCa. V-ATPase inhibitors impaired endo-lysosomal pH, vesicle trafficking, migration, and invasion. V-ATPase accrual in the Golgi and recycling endosomes suggests that traffic of internalized membrane vesicles back to the plasma membrane was particularly impaired...
November 15, 2017: Biology Open
https://www.readbyqxmd.com/read/29036607/endoscopic-and-histopathologic-reflux-associated-mucosal-damage-in-the-remnant-esophagus-following-transthoracic-esophagectomy-for-cancer-5-year-long-term-follow-up
#13
H F Fuchs, H M Schmidt, M Meissner, S Brinkmann, M Maus, M Bludau, W Schröder, A H Hölscher, J M Leers
Gastroesophageal reflux is a common problem following esophagectomy and reconstruction with gastric interposition. Despite a routine prescription of proton pump inhibitors, reflux-associated mucosal damage in the remnant esophagus is frequently observed. Purpose of this study is to evaluate mucosal damage in the esophageal remnant during long-term follow-up and to compare the prevalence of this damage between the subgroups of esophageal squamous cell and adenocarcinoma. All patients undergoing transthoracic Ivor-Lewis esophagectomy were prospectively entered in our IRB approved database...
September 21, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29034088/emerging-dilemmas-in-the-diagnosis-and-management-of-gastroesophageal-reflux-disease
#14
REVIEW
Peter Kahrilas, Rena Yadlapati, Sabine Roman
Gastroesophageal reflux disease (GERD) is common, but less so than widely reported because of inconsistencies in definition. In clinical practice, the diagnosis is usually based on a symptom assessment without testing, and the extent of diagnostic testing pursued should be limited to that which guides management or which protects the patient from the risks of a potentially morbid treatment or an undetected early (or imminent) esophageal adenocarcinoma or which does both. When testing is pursued, upper gastrointestinal endoscopy is the most useful initial diagnostic test because it evaluates for the major potential morbidities (Barrett's, stricture, and cancer) associated with GERD and facilitates the identification of some alternative diagnostic possibilities such as eosinophilic esophagitis...
2017: F1000Research
https://www.readbyqxmd.com/read/28981161/effects-of-concomitant-medication-use-on-gefitinib-induced-hepatotoxicity
#15
Soyeon Cho, Jeong Yee, Jae Youn Kim, Sandy Jeong Rhie, Hye Sun Gwak
Gefitinib is a drug used for the treatment of non-small cell lung cancer (NSCLC) patients. Severe hepatotoxicity was observed, but only a few cases have been reported on the hepatotoxicity of gefitinib. This study aimed to investigate the association between gefitinib-induced hepatotoxicity and various factors including concomitant medications in lung cancer patients. From January 2013 to December 2014, a retrospective study was performed with NSCLC patients who were treated with gefitinib. Associations between hepatotoxicity and various factors including concomitant drugs were analyzed...
October 5, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28979813/tumor-microenvironment-interruption-a-novel-anti-cancer-mechanism-of-proton-pump-inhibitor-in-gastric-cancer-by-suppressing-the-release-of-microrna-carrying-exosomes
#16
Xu-Wen Guan, Fang Zhao, Jing-Ya Wang, Hai-Yan Wang, Shao-Hua Ge, Xia Wang, Le Zhang, Rui Liu, Yi Ba, Hong-Li Li, Ting Deng, Li-Kun Zhou, Ming Bai, Tao Ning, Hai-Yang Zhang, Ding-Zhi Huang
Poor prognosis of gastric cancer is related to not only malignancy of gastric cancer cells, but also the tumor microenvironment. Thus drugs, which can inhibit both of them, are urgently needed to be explored. Studies on effect of Proton-pump inhibitors (PPIs) in anti-neoplasms are increasing, but is rare in gastric in gastric cancer. Here we investigated how the gastric cancer microenvironment is regulated by PPIs. The objective response rate of gastric cancer patients in our hospital treated by PPIs is investigated...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28978563/potential-medication-related-problems-in-older-breast-colon-and-lung-cancer-patients-in-the-united-states
#17
Jennifer L Lund, Hanna K Sanoff, Sharon Peacock-Hinton, Hyman Muss, Virginia Pate, Til Stürmer
BACKGROUND: Older adults are often exposed to multiple medications, some of which could be inappropriate or have the potential to interact with each other. Older cancer patients may be at increased risk for medication-related problems due to exposure to cancer-directed treatment. METHODS: We described patterns of potentially inappropriate medication (PIM) use and potential drug-chemotherapy interactions among adults age 66+ years diagnosed with stage I-III breast, stage II-III colon, and stage I-II lung cancer...
October 4, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28978047/restoring-microenvironmental-redox-and-ph-homeostasis-inhibits-neoplastic-cell-growth-and-migration-therapeutic-efficacy-of-esomeprazole-plus-sulfasalazine-on-3-mca-induced-sarcoma
#18
Enrica Balza, Patrizia Castellani, Paola Sanchez Moreno, Patrizia Piccioli, Iria Medraño-Fernandez, Claudia Semino, Anna Rubartelli
Neoplastic cells live in a stressful context and survive thanks to their ability to overcome stress. Thus, tumor cell responses to stress are potential therapeutic targets. We selected two such responses in melanoma and sarcoma cells: the xc- antioxidant system, that opposes oxidative stress, and surface v-ATPases that counteract the low pHi by extruding protons, and targeted them with the xc- blocker sulfasalazine and the proton pump inhibitor esomeprazole. Sulfasalazine inhibited the cystine/cysteine redox cycle and esomeprazole decreased pHi while increasing pHe in tumor cell lines...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28975540/current-management-of-benign-epithelial-gastric-polyps
#19
REVIEW
Antonio R Cheesman, David A Greenwald, Shailja C Shah
Purpose of review Benign epithelial gastric polyps, although typically asymptomatic, are identified incidentally on upper endoscopy in up to 23% of patients. These include fundic gland, hyperplastic, and adenomatous polyps. Their appropriate characterization is critical as some have malignant potential, may be indicative of a gastric mucosal field defect, or may be related to an underlying polyposis syndrome. This review will discuss the current management of benign epithelial gastric polyps. Recent findings Association of gastric polyps with proton pump inhibitor use, Helicobacter pylori infection, risk of malignant transformation, and association with polyposis syndromes have been the focus of recent literature...
December 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28938598/proton-pump-inhibitors-increase-the-chemosensitivity-of-patients-with-advanced-colorectal-cancer
#20
Xiaoyu Wang, Chun Liu, Jiaqi Wang, Yue Fan, Zhenghua Wang, Yuanyuan Wang
Changes in pH can alter the uptake of chemotherapy drugs. Proton pump inhibitors (PPIs) may therefore increase the chemosensitivity of cancer cells and cytotoxicity of chemotherapeutic drugs by increasing their uptake. We investigated the chemosensitizing potential of PPIs in colorectal cancer (CRC). Our in vitro data show that the PPI pantoprazole increases the chemosensitivity of CRC HT29 and RKO cells to fluorouracil (5-FU). Our in vivo data demonstrate that pantoprazole also increases the ability of 5-FU to inhibit CRC tumor growth in mice...
August 29, 2017: Oncotarget
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