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https://www.readbyqxmd.com/read/28103324/use-of-proton-pump-inhibitors-predicts-heart-failure-and-death-in-patients-with-coronary-artery-disease
#1
Ana María Pello Lázaro, Carmen Cristóbal, Juan Antonio Franco-Peláez, Nieves Tarín, Álvaro Aceña, Rocío Carda, Ana Huelmos, María Luisa Martín-Mariscal, Jesús Fuentes-Antras, Juan Martínez-Millá, Joaquín Alonso, Óscar Lorenzo, Jesús Egido, Lorenzo López-Bescós, José Tuñón
OBJECTIVES: Proton-pump inhibitors (PPIs) seem to increase the incidence of cardiovascular events in patients with coronary artery disease (CAD), mainly in those using clopidogrel. We analysed the impact of PPIs on the prognosis of patients with stable CAD. METHODS: We followed 706 patients with CAD. Primary outcome was the combination of secondary outcomes. Secondary outcomes were 1) acute ischaemic events (any acute coronary syndrome, stroke, or transient ischaemic attack) and 2) heart failure (HF) or death...
2017: PloS One
https://www.readbyqxmd.com/read/28102361/effectiveness-and-tolerability-of-different-recommended-doses-of-ppis-and-h2ras-in-gerd-network-meta-analysis-and-grade-system
#2
Chao Zhang, Joey S W Kwong, Rui-Xia Yuan, Hao Chen, Chang Xu, Yi-Pin Wang, Gong-Li Yang, Jin-Zhu Yan, Le Peng, Xian-Tao Zeng, Hong Weng, Jie Luo, Yu-Ming Niu
Proton pump inhibitors (PPIs) and histamine-2-receptor antagonists (H2RAs) are used for gastro-esophageal reflux disease (GERD); however, the clinical evidence for treatment is poor. We evaluated the effectiveness and tolerability of different doses of PPIs, H2RAs and placebo in adults with GERD. Six online databases were searched through September 1, 2016. All related articles were included and combined with a Bayesian network meta-analysis from randomized controlled trials (RCTs). The GRADE systems were employed to assess the main outcome...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101705/tyrosine-kinase-inhibitors-and-proton-pump-inhibitors-an-evaluation-of-treatment-options
#3
Roelof W F van Leeuwen, Frank G A Jansman, Nicole G Hunfeld, Robert Peric, Anna K L Reyners, Alex L T Imholz, Jacobus R B J Brouwers, Joachim G Aerts, Teun van Gelder, Ron H J Mathijssen
Tyrosine kinase inhibitors (TKIs) have rapidly become an established factor in oncology, and have been shown to be effective in a wide variety of solid and hematologic malignancies. Use of the oral administration route of TKIs offers flexibility and is convenient for the patient; however, despite these advantages, the oral route of administration also causes a highly relevant new problem. Acid-inhibitory drugs, such as proton pump inhibitors (PPIs), increase the intragastric pH, which may subsequently decrease TKI solubility, bioavailability, and treatment efficacy...
January 18, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28093644/guidelines-for-proton-pump-inhibitor-prescriptions-in-paediatric-intensive-care-unit
#4
P Joret-Descout, S Dauger, M Bellaiche, O Bourdon, S Prot-Labarthe
Background Stress ulcer prophylaxis (SUP) is recommended in some situations to prevent upper gastrointestinal bleeding and is a component of standard care for patients admitted to the intensive care unit (ICU). Proton pump inhibitors (PPIs), already among the most widely prescribed drug classes, are being increasingly used. Objective To describe PPI prescribing patterns and their changes after the dissemination of guidelines. Setting Paediatric ICU (PICU), Robert-Debré Teaching Hospital, Paris, France, which admits about 800 patients annually, from full-term neonates to 18-year-olds...
January 17, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28092048/using-reciprocal-protein-peptide-array-screening-to-unravel-protein-interaction-networks
#5
Huadong Liu, Courtney Voss, Shawn S C Li
Protein-protein interactions (PPIs) play a central role in almost all cellular processes. Recent technological advances have enabled the elucidation of an incredibly complex PPI network within the cell. However, protein interactions driven by posttranslational modifications (PTMs) such as phosphorylation, which comprises a significant part of the PPI network, have proven difficult to decipher systematically. Herein, we describe a reciprocal protein-peptide array strategy to uncover PPIs mediated by tyrosine phosphorylation and the Src homology 2 (SH2) domain...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28089434/gastroesophageal-reflux-disease-and-barrett-s-esophagus-after-laparoscopic-sleeve-gastrectomy-a-possible-underestimated-long-term-complication
#6
Alfredo Genco, Emanuele Soricelli, Giovanni Casella, Roberta Maselli, Lidia Castagneto-Gissey, Nicola Di Lorenzo, Nicola Basso
BACKGROUND: Morbidly obese patients are affected by gastroesophageal reflux disease (GERD) and hiatal hernia (HH) more frequently than lean patients. Because of conflicting results, the indication to sleeve gastrectomy (SG) in patients with GERD is still debated. OBJECTIVES: To evaluate the incidence of GERD on the basis of clinical, endoscopic, and histologic data in patients undergoing SG. SETTINGS: University hospital, Rome, Italy. METHODS: From July 2007 to January 2010, 162 patients underwent primary SG...
December 9, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28088516/structural-study-of-the-effects-of-mutations-in-proteins-to-identify-the-molecular-basis-of-the-loss-of-local-structural-fluidity-leading-to-the-onset-of-autoimmune-diseases
#7
Ananya Ali, Semanti Ghosh, Angshuman Bagchi
Protein-Protein Interactions (PPIs) are crucial in most of the biological processes and PPI dysfunctions are known to be associated with the onsets of various diseases. One of such diseases is the auto-immune disease. Auto-immune diseases are one among the less studied group of diseases with very high mortality rates. Thus, we tried to correlate the appearances of mutations with their probable biochemical basis of the molecular mechanisms leading to the onset of the disease phenotypes. We compared the effects of the Single Amino Acid Variants (SAVs) in the wild type and mutated proteins to identify any structural deformities that might lead to altered PPIs leading ultimately to disease onset...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28088356/advancing-the-prediction-accuracy-of-protein-protein-interactions-by-utilizing-evolutionary-information-from-position-specific-scoring-matrix-and-ensemble-classifier
#8
Lei Wang, Zhu-Hong You, Shi-Xiong Xia, Feng Liu, Xing Chen, Xin Yan, Yong Zhou
Protein-Protein Interactions (PPIs) are essential to most biological processes and play a critical role in most cellular functions. With the development of high-throughput biological techniques and in silico methods, a large number of PPI data have been generated for various organisms, but many problems remain unsolved. These factors promoted the development of the in silico methods based on machine learning to predict PPIs. In this study, we propose a novel method by combining ensemble Rotation Forest (RF) classifier and Discrete Cosine Transform (DCT) algorithm to predict the interactions among proteins...
January 11, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28078581/proximity-ligation-assay-pla-to-evaluate-disc-and-misc-composition
#9
Melissa Thomas, Patrick Legembre
Distribution of the death receptor CD95 into lipid rafts (aggregation) and/or its internalization may contribute to the implementation of the apoptotic signal at the detriment of the non-apoptotic signaling pathway [1-6]. Also CD95 can form different protein complexes via dynamic protein-protein interactions (PPIs) according to its interaction with soluble or transmembrane CD95L. Therefore, spatiotemporal identification of these PPIs is pivotal to anticipate the signaling pathway implemented in cells stimulated with different forms of CD95L...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28077568/automatic-query-generation-using-word-embeddings-for-retrieving-passages-describing-experimental-methods
#10
Ferhat Aydın, Zehra Melce Hüsünbeyi, Arzucan Özgür
Information regarding the physical interactions among proteins is crucial, since protein-protein interactions (PPIs) are central for many biological processes. The experimental techniques used to verify PPIs are vital for characterizing and assessing the reliability of the identified PPIs. A lot of information about PPIs and the experimental methods are only available in the text of the scientific publications that report them. In this study, we approach the problem of identifying passages with experimental methods for physical interactions between proteins as an information retrieval search task...
2017: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/28077563/the-bioc-biogrid-corpus-full-text-articles-annotated-for-curation-of-protein-protein-and-genetic-interactions
#11
Rezarta Islamaj Doğan, Sun Kim, Andrew Chatr-Aryamontri, Christie S Chang, Rose Oughtred, Jennifer Rust, W John Wilbur, Donald C Comeau, Kara Dolinski, Mike Tyers
A great deal of information on the molecular genetics and biochemistry of model organisms has been reported in the scientific literature. However, this data is typically described in free text form and is not readily amenable to computational analyses. To this end, the BioGRID database systematically curates the biomedical literature for genetic and protein interaction data. This data is provided in a standardized computationally tractable format and includes structured annotation of experimental evidence. BioGRID curation necessarily involves substantial human effort by expert curators who must read each publication to extract the relevant information...
2017: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/28077309/physical-and-biological-characteristics-of-multi-drug-resistance-mdr-an-integral-approach-considering-ph-and-drug-resistance-in-cancer
#12
REVIEW
Ziad Omran, Paula Scaife, Simon Stewart, Cyril Rauch
The role of the Warburg effect in cancer remains to be elucidated with a resurgence in research efforts over the past decade. Why a cancer cell would prefer to use energy inefficient glycolysis, leading to an alteration of pH both inside and outside of the cell, remains to be uncovered. The development of MDR represents a major challenge in the treatment of cancer and it is explained, so far, by the over expression of drug transporters such as the well-known and archetypal P-glycoprotein (Pgp). However, controversies exist regarding the function of Pgp in multi-drug resistance...
January 8, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28076696/proton-pump-inhibitors-for-preventing-non-steroidal-anti-inflammatory-drug-induced-gastrointestinal-toxicity-a-systematic-review
#13
Man Yang, Min He, Miao Zhao, Bing Zou, Jun Liu, Ling-Min Luo, Qiu-Lan Li, Jun-Hui He, Ping-Guang Lei
OBJECTIVE: Proton pump inhibitors (PPIs) are recommended for preventing gastrointestinal lesions induced by non-steroidal anti-inflammatory drug (NSAID). We performed this study (1) to evaluate the effectiveness and safety of PPIs, (2) to explore the association between effectiveness and potential influential factors, and (3) to investigate the comparative effect of different PPIs. METHODS: MEDLINE, EMBASE, and the Cochrane Library were searched to identify randomized controlled trials comparing different classes of PPIs, or comparing PPIs with placebo, H2 receptor antagonists or misoprostol in NSAIDs users...
January 11, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28076635/prevalence-of-vitamin-b12-deficiency-in-type-2-diabetic-patients-using-metformin-a-cross-sectional-study
#14
Charbel Pereira Damião, Amannda Oliveira Rodrigues, Maria Fernanda Miguens Castellar Pinheiro, Rubens Antunes da Cruz, Gilberto Peres Cardoso, Giselle Fernandes Taboada, Giovanna Aparecida Balarini Lima
CONTEXT AND OBJECTIVE: The prevalence of vitamin B12 deficiency varies from 5.8% to 30% among patients undergoing long-term treatment with metformin. Because of the paucity of data on Brazilian patients, this study aimed to determine the frequency of B12 deficiency and related factors among Brazilian patients with type 2 diabetes mellitus (T2DM) using metformin. DESIGN AND SETTING: Cross-sectional study at a public university hospital. METHODS: Patients with T2DM and a control group of non-diabetics were included...
November 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28074633/a-computational-interactome-for-prioritizing-genes-associated-with-complex-agronomic-traits-in-rice
#15
Shiwei Liu, Yihui Liu, Jiawei Zhao, Shitao Cai, Hongmei Qian, Kaijing Zuo, Lingxia Zhao, Lida Zhang
Rice is one of the most important staple foods for more than half of the world's population. Many rice traits are quantitative, complex and controlled by multiple interacting genes. Thus, a full understanding of genetic relationships will be critical to systematically identify genes controlling agronomic traits. We developed a genome-wide rice protein-protein interaction network (RicePPINet, http://netbio.sjtu.edu.cn/riceppinet/) using machine-learning with structural relationship and functional information...
January 11, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28072858/proton-pump-inhibitors-do-not-reduce-the-risk-of-esophageal-adenocarcinoma-in-patients-with-barrett-s-esophagus-a-systematic-review-and-meta-analysis
#16
Qiang Hu, Tian-Tian Sun, Jie Hong, Jing-Yuan Fang, Hua Xiong, Stephen J Meltzer
OBJECTIVES: Proton pump inhibitors (PPIs) have been used for treatment of Barrett's esophagus (BE) for many years. However, the connection between PPIs and esophageal adenocarcinoma (EAC) in patients with BE has still been controversial. The current systematic review and meta-analysis was designed to evaluate the association between PPIs and the risk of EAC or high-grade dysplasia (HGD) in patients with BE. METHODS: A systematic literature search of studies reporting the association between PPIs and the risk of EAC and/or HGD in patients with BE was conducted in PubMed, Embase, Web of Science and the Cochrane Library...
2017: PloS One
https://www.readbyqxmd.com/read/28067063/screening-based-approaches-to-identify-small-molecules-that-inhibit-protein-protein-interactions
#17
Sehee Choi, Kang-Yell Choi
Protein-protein interactions (PPIs) are very attractive targets for drug development as they play important roles in regulating many aspects of pathophysiologies. It has recently been revealed that the functionally important region of most PPIs is small enough to be modulated by small molecules. Thus, many studies in this field have achieved amazing progress, together with diverse and advanced screening technologies. Areas covered: This article presents screening technologies to identify small molecule inhibitors of PPIs in addition to discussing the suitability of PPIs as molecular targets...
January 8, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28065597/a-global-analysis-of-the-receptor-tyrosine-kinase-protein-phosphatase-interactome
#18
Zhong Yao, Katelyn Darowski, Nicole St-Denis, Victoria Wong, Fabian Offensperger, Annabel Villedieu, Shahreen Amin, Ramy Malty, Hiroyuki Aoki, Hongbo Guo, Yang Xu, Caterina Iorio, Max Kotlyar, Andrew Emili, Igor Jurisica, Benjamin G Neel, Mohan Babu, Anne-Claude Gingras, Igor Stagljar
Receptor tyrosine kinases (RTKs) and protein phosphatases comprise protein families that play crucial roles in cell signaling. We used two protein-protein interaction (PPI) approaches, the membrane yeast two-hybrid (MYTH) and the mammalian membrane two-hybrid (MaMTH), to map the PPIs between human RTKs and phosphatases. The resulting RTK-phosphatase interactome reveals a considerable number of previously unidentified interactions and suggests specific roles for different phosphatase families. Additionally, the differential PPIs of some protein tyrosine phosphatases (PTPs) and their mutants suggest diverse mechanisms of these PTPs in the regulation of RTK signaling...
December 21, 2016: Molecular Cell
https://www.readbyqxmd.com/read/28059508/non-classical-size-dependence-of-permeation-defines-bounds-for-passive-adsorption-of-large-drug-molecules
#19
Cameron R Pye, William M Hewitt, Joshua A Schwochert, Terra D Haddad, Chad E Townsend, Lyns Etienne, Yongtong Lao, Chris Limberakis, Akihiro Furukawa, Alan M Mathiowetz, David A Price, Spiros Liras, R Scott Lokey
There is a growing number of intracellular protein-protein interactions (PPI's) with potential therapeutic importance that demand larger ligands than those that neatly fit into most common criteria for "drug-likeness". Macrocyclic peptides pro-vide the large surface area required to inhibit PPIs and, in principle, avoid many of the pitfalls associated with peptides, including low stability and membrane permeability. However, the design of passively cell-permeable molecules in this space remains a great challenge due to the poorly understood roles of molecular size and lipophilicity in determining pas-sive membrane permeability above MW ~500...
January 6, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28056809/is-the-concomitant-use-of-clopidogrel-and-proton-pump-inhibitors-still-associated-with-increased-adverse-cardiovascular-outcomes-following-coronary-angioplasty-a-systematic-review-and-meta-analysis-of-recently-published-studies-2012-2016
#20
Pravesh Kumar Bundhun, Abhishek Rishikesh Teeluck, Akash Bhurtu, Wei-Qiang Huang
BACKGROUND: Controversies were previously observed with the concomitant use of clopidogrel and Proton Pump Inhibitors (PPIs), especially omeprazole, following coronary angioplasty. Even though several studies showed no interaction between clopidogrel and PPIs, questions have been raised about the decrease in antiplatelet effects of clopidogrel with PPIs. A previously published meta-analysis showed concomitant use of clopidogrel and PPIs to be associated with higher adverse cardiovascular outcomes...
January 5, 2017: BMC Cardiovascular Disorders
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