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https://www.readbyqxmd.com/read/28314392/combining-simplicity-with-cost-effectiveness-investigation-of-potential-counterfeit-of-proton-pump-inhibitors-through-simulated-formulations-using-thin-layer-chromatography
#1
Nejal M Bhatt, Vijay D Chavada, Mallika Sanyal, Pranav S Shrivastav
A simple, accurate and precise high-performance thin-layer chromatographic method has been developed and validated for the analysis of proton pump inhibitors (PPIs) and their co-formulated drugs, available as binary combination. Planar chromatographic separation was achieved using a single mobile phase comprising of toluene: iso-propranol: acetone: ammonia 5.0:2.3:2.5:0.2 (v/v/v/v) for the analysis of 14 analytes on aluminium-backed layer of silica gel 60 FG254. Densitometric determination of the separated spots was done at 290nm...
November 18, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28294071/safety-of-one-week-first-line-standard-triple-therapy-for-helicobacter-pylori-eradication-in-a-japanese-population
#2
Kazutoshi Hori, Tetsuya Takagawa, Nobuyuki Hida, Shiro Nakamura
BACKGROUND: Standard triple therapy with the proton pump inhibitors, clarithromycin and amoxicillin for Helicobacter pylori infection is considered to be safe; however, the development of significant adverse events (AEs), such as skin rashes, has been reported. OBJECTIVE: To reconfirm the safety of this treatment. METHODS: This was a retrospective cohort study. After the exclusion of patients allergic to penicillin, 322 consecutive patients, consisting of 305 outpatients and 17 inpatients, had received the first-line eradication treatment with lansoprazole (30 mg), clarithromycin (200 mg), and amoxicillin (750 mg) twice daily for 7 days...
March 9, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28291036/potential-mechanisms-of-hematological-adverse-drug-reactions-in-patients-receiving-clozapine-in-combination-with-proton-pump-inhibitors
#3
Michał Wiciński, Mateusz M Węclewicz, Mateusz Miętkiewicz, Bartosz Malinowski, Elżbieta Grześk, Joanna Klonowska
Clozapine is a second-generation antipsychotic which has proven efficacy in treating the symptoms of schizophrenia. Although clozapine therapy is associated with a number of adverse drug reactions, it is frequently used. One of the most common adverse drug reactions is gastroesophageal reflux disease which is an indication for treatment with proton pump inhibitors (PPIs). Coadministration of clozapine and PPIs increases the risk of hematological adverse drug reactions, including neutropenia and agranulocytosis...
March 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/28258931/the-effects-of-paroxetine-and-amitriptyline-on-the-upper-esophageal-sphincter-ues-pressure-and-its-natural-history-in-globus-pharyngeus
#4
Wen-Cong Zhou, Lin Jia, Dong-Yun Chen, Yao Liu, Jing Liu, Shu-Man Jiang, Meng Yang, Jian Xu
BACKGROUND: Antidepressant agents have been shown to be an effective and safe treatment method for patients with globus. However, there are few clinical trials dedicated to studying the effects of antidepressant agents on the natural history and upper oesophageal sphincter (UES) pressure of treated globus patients. AIMS: To evaluate the effect of paroxetine and amitriptyline to prevent relapses in patients with globus, the simultaneous relationship between changes in UES pressure and improvement of globus symptoms were measured...
February 28, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28251024/petroselinum-crispum-is-effective-in-reducing-stress-induced-gastric-oxidative-damage
#5
Ayşin Akıncı, Mukaddes Eşrefoğlu, Elif Taşlıdere, Burhan Ateş
BACKGROUND: Oxidative stress has been shown to play a principal role in the pathogenesis of stress-induced gastric injury. Parsley (Petroselinum crispum) contains many antioxidants such as flavanoids, carotenoids and ascorbic acid. AIMS: In this study, the histopathological and biochemical results of nutrition with a parsley-rich diet in terms of eliminating stress-induced oxidative gastric injury were evaluated. STUDY DESIGN: Animal experimentation...
January 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28216974/comparative-study-vonoprazan-and-proton-pump-inhibitors-in-helicobacter-pylori-eradication-therapy
#6
Kouichi Sakurai, Hiroko Suda, Yumi Ido, Takayuki Takeichi, Ayako Okuda, Kiwamu Hasuda, Masahiro Hattori
AIM: To compare the effectiveness and safety of vonoprazan-based therapy with proton pump inhibitor (PPI)-based therapies to treat Helicobacter pylori (H. pylori). METHODS: We retrospectively analysed data from first-line (vonoprazan or PPI with 200 mg clarithromycin and 750 mg amoxicillin twice daily for 7 d) (n = 1353) and second-line (vonoprazan or PPI with 250 mg metronidazole and 750 mg amoxicillin twice daily for 7 d) (n = 261) eradication treatments for H...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28203282/the-role-of-dexlansoprazole-modified-release-in-the-management-of-gastroesophageal-reflux-disease
#7
REVIEW
Ronnie Fass, Rosita Frazier
Dexlansoprazole modified-release (MR) is the R-enantiomer of lansoprazole and is currently the only proton-pump inhibitor (PPI) with a novel dual delayed release (DDR) formulation. Overall, dexlansoprazole MR demonstrates a similar safety and side-effect profile as lansoprazole. Dexlansoprazole MR has been shown to be highly efficacious in healing erosive esophagitis, maintaining healed esophageal mucosa in patients with erosive esophagitis and controlling symptoms of patients with nonerosive reflux disease (NERD)...
February 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28197557/doubly-charged-trimeric-cluster-ions-effective-in-mutual-chiral-recognition-of-tadalafil-and-three-proton-pump-inhibitors
#8
Lu Wang, Yunfeng Chai, Wenquan Zhu, Yuanjiang Pan, Cuirong Sun, Su Zeng
Mutual chiral recognition of four stereoisomers of tadalafil and three pairs of enantiomers of proton pump inhibitors (PPIs) including pantoprazole, lansoprazole, and omeprazole, as well as quantitative analysis of enantiomeric excess is achieved on the basis of the competitive fragmentation of doubly charged trimeric Ni(II) cluster ions. Compared with a singly charged trimeric cluster ion, a doubly charged trimeric cluster ion was proved efficient in the recognition of chiral drugs with one or multiple chiral centers, due to its rich fragmentation ions...
February 15, 2017: Analyst
https://www.readbyqxmd.com/read/28159656/influence-of-different-proton-pump-inhibitors-on-the-pharmacokinetics-of-voriconazole
#9
Fang Qi, Liqin Zhu, Na Li, Tingyue Ge, Gaoqi Xu, Shasha Liao
This study aimed to determine the influence of proton pump inhibitors (PPIs) on the pharmacokinetics of voriconazole and to characterise potential drug-drug interactions (DDIs) between voriconazole and various PPIs (omeprazole, esomeprazole, lansoprazole and rabeprazole). Using adjusted physicochemical data and the pharmacokinetic (PK) parameters of voriconazole and PPIs, physiologically based pharmacokinetic (PBPK) models were built and were verified in healthy subjects using GastroPlus(TM) to predict the plasma concentration-time profiles of voriconazole and PPIs...
January 31, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28139495/efficacy-of-proton-pump-inhibitors-for-patients-with-duodenal-ulcers-a-pairwise-and-network-meta-analysis-of-randomized-controlled-trials
#10
REVIEW
Zhan-Hong Hu, Ai-Ming Shi, Duan-Min Hu, Jun-Jie Bao
BACKGROUND/AIM: To compare the efficacy and tolerance of different proton pump inhibitors (PPIs) in different doses for patients with duodenal ulcers. MATERIALS AND METHODS: An electronic database was searched to collect all randomized clinical trials (RCTs), and a pairwise and network meta-analysis were performed. RESULTS: A total of 24 RCTs involving 6188 patients were included. The network meta-analysis showed that there were no significant differences for the 4-week healing rate of duodenal ulcer treated with different PPI regimens except pantoprazle 40 mg/d versus lansoprazole 15 mg/d [Relative risk (RR) = 3...
January 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28138748/safety-tolerability-pharmacokinetics-and-pharmacodynamics-of-dexlansoprazole-injection-in-healthy-chinese-subjects
#11
Yue-Qi Li, Zheng-Yu Yan, Hong-Wen Zhang, Lu-Ning Sun, Hui-Wen Jiao, Mei-Feng Wang, Li-Yuan Yu, Lei Yu, Zi-Qing-Yun Yuan, Ling Meng, Yong-Qing Wang
PURPOSE: This study was conducted to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of dexlansoprazole injection in healthy subjects. METHODS: Dexlansoprazole (20-90 mg) or lansoprazole (30 mg) was administrated intravenously to healthy male and female volunteers. All the subjects were sampled for pharmacokinetic (PK) analysis and 64 of them were monitored for 24-h intragastric pH prior to and after administration in the pharmacodynamic (PD) study...
January 31, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28110633/h-k-atpase-inhibition-causes-left-right-aortic-arch-inversion-in-mouse-development
#12
Yukihisa Miyachi
An organ known as a "node" forms during embryogenesis and plays a vital role in determining laterality in vertebrates. However, according to some reports in vertebrates, left-right patterning may be determined long before the node has developed. In this study, we analyzed left-right asymmetry formation in mammals based on ion-signaling factors, which has never been attempted before. First, a proton pump inhibitor was injected into pregnant mice to investigate whether H(+)/K(+)-ATPase is involved in the differentiation of pharyngeal arch arteries during embryonic development...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28088896/formulation-and-optimization-of-lansoprazole-pellets-using-factorial-design-prepared-by-extrusion-spheronization-technique-using-carboxymethyl-tamarind-kernel-powder
#13
Sagar Sopanrao Muley, Tanaji Nandgude, Sushilkumar Poddar
BACKGROUND: In the present study, Lansoprazole pellets were prepared employing a novel excipient Carboxymethyl tamarind kernel powder (CMTKP) using extrusion-spheronization technique. Pellet formulation was optimized for formulation parameters (concentration of microcrystalline cellulose, CMTKP, croscarmellose sodium and isopropyl alcohol). METHODS: Process parameters (speed and duration of spheronization) were optimized using factorial design. The pellets were evaluated for yield, bulk and tapped density, particle size, hardness, drug content, disintegration time and drug release...
January 13, 2017: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/28039570/different-transcriptional-profiling-between-senescent-and-non-senescent-human-coronary-artery-endothelial-cells-hcaecs-by-omeprazole-and-lansoprazole-treatment
#14
Laura Costarelli, Robertina Giacconi, Marco Malavolta, Andrea Basso, Francesco Piacenza, Mauro Provinciali, Marcello G Maggio, Andrea Corsonello, Fabrizia Lattanzio
Recent evidence suggests that high dose and/or long term use of proton pump inhibitors (PPIs) may increase the risk of adverse cardiovascular events in older patients, but mechanisms underlying these detrimental effects are not known. Taking into account that the senescent endothelial cells have been implicated in the genesis or promotion of age-related cardiovascular disease, we hypothesized an active role of PPIs in senescent cells. The aim of this study is to investigate the changes in gene expression occurring in senescent and non-senescent human coronary artery endothelial cells (HCAECs) following Omeprazole (OPZ) or Lansoprazole (LPZ) treatment...
December 30, 2016: Biogerontology
https://www.readbyqxmd.com/read/27991740/determination-of-rabeprazole-enantiomers-in-dog-plasma-by-supercritical-fluid-chromatography-tandem-mass-spectrometry-and-its-application-to-a-pharmacokinetic-study
#15
Chong Su, Hong Yang, Xiangjun Meng, J Paul Fawcett, Jianming Cao, Yan Yang, Jingkai Gu
Rabeprazole is a novel benzimidazole proton pump inhibitor used for the treatment of gastrointestinal disorders. It is a chiral molecule that gives rise to the possibility of stereoselective pharmacokinetics. To investigate this phenomenon, a rapid and sensitive chiral assay based on supercritical fluid chromatography tandem mass spectrometry was developed and applied to the determination of (R)-rabeprazole and (S)-rabeprazole in dog plasma. Sample preparation involved protein precipitation with acetonitrile after the addition of (R)-lansoprazole as internal standard...
December 19, 2016: Journal of Separation Science
https://www.readbyqxmd.com/read/27988924/successful-eradication-therapy-for-helicobacter-pylori-positive-atrophic-gastritis-at-the-sixth-attempt-a-case-report
#16
Ryuzo Deguchi, Koichi Shiraishi, Yoshitaka Arase, Makiko Dekiden, Hideo Shimada, Hiroshi Miyakita, Takashi Ogimi, Kazunori Myojin, Tetsuya Mine
A 74-year-old woman undergoing outpatient follow-up for reflux esophagitis and atrophic gastritis tested positive for Helicobacter pylori and underwent primary eradication therapy with lansoprazole (LPZ) 30 mg, amoxicillin (AMPC) 750 mg, and clarithromycin (CAM) 200 mg twice daily for 1 week in August 2012. A urea breath test (UBT) after this treatment revealed that eradication had failed. Secondary eradication therapy was carried out with esomeprazole (EPZ) 20 mg, AMPC 750 mg, and metronidazole (MNZ) 250 mg twice daily for 1 week, but this also failed...
December 20, 2016: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/27981489/influence-of-low-dose-proton-pump-inhibitors-administered-concomitantly-or-separately-on-the-anti-platelet-function-of-clopidogrel
#17
Takahisa Furuta, Mitsushige Sugimoto, Chise Kodaira, Masafumi Nishino, Mihoko Yamade, Takahiro Uotani, Shu Sahara, Hitomi Ichikawa, Takuma Kagami, Moriya Iwaizumi, Yasushi Hamaya, Satoshi Osawa, Ken Sugimoto, Kazuo Umemura
Proton pump inhibitors (PPIs) at low doses can effectively prevent gastrointestinal bleeding due to aspirin and are widely used in Japan for gastroprotection in patients taking anti-platelet agents. We examined the influence of different PPIs at low doses administered concomitantly or separately on anti-platelet functions of clopidogrel. In 41 healthy Japanese volunteers with different CYP2C19 genotypes who took clopidogrel 75 mg in the morning alone, or with omeprazole 10 mg, esomeprazole 10 mg, lansoprazole 15 mg, or rabeprazole 10 mg, either concomitantly in the morning or separately in the evening, we measured the inhibition of platelet aggregation (IPA, %) using VerifyNow P2Y12 assay at 4 h after the last clopidogrel dose on Day 7 of each regimen...
April 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27937036/gastroprotective-activity-of-the-resin-from-virola-oleifera
#18
Ana Claudia Hertel Pereira, Dominik Lenz, Breno Valentim Nogueira, Rodrigo Scherer, Tadeu Uggere Andrade, Helber Barcellos da Costa, Wanderson Romão, Thiago Melo Costa Pereira, Denise Coutinho Endringer
CONTEXT: The resin from the trunk wood of Virola oleifera (Schott) A. C. Smith (Myristicaceae) is used in folk medicine to hasten wound repair and to treat pain and inflammatory conditions, and our previous report indicated the anti-oxidative properties in other oxidative stress model. OBJECTIVE: To investigate the protective effects of resin from V. oleifera in two experimental models of gastric ulcer oxidative-stress dependent. MATERIALS AND METHODS: Plant material was collected and the resin was subjected to partitioning with organic solvents...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27926505/antitumor-effect-of-combination-of-the-inhibitors-of-two-new-oncotargets-proton-pumps-and-reverse-transcriptase
#19
Luana Lugini, Ilaria Sciamanna, Cristina Federici, Elisabetta Iessi, Enrico Pierluigi Spugnini, Stefano Fais
Tumor therapy needs new approaches in order to improve efficacy and reduce toxicity of the current treatments. The acidic microenvironment and the expression of high levels of endogenous non-telomerase reverse transcriptase (RT) are common features of malignant tumor cells. The anti-acidic proton pump inhibitor Lansoprazole (LAN) and the non-nucleoside RT inhibitor Efavirenz (EFV) have shown independent antitumor efficacy. LAN has shown to counteract drug tumor resistance. We tested the hypothesis that combination of LAN and EFV may improve the overall antitumor effects...
December 3, 2016: Oncotarget
https://www.readbyqxmd.com/read/27909552/vonoprazan-20-mg-vs-lansoprazole-30-mg-for-endoscopic-submucosal-dissection-induced-gastric-ulcers
#20
Kazuya Takahashi, Yuichi Sato, Junji Kohisa, Jun Watanabe, Hiroki Sato, Kenichi Mizuno, Satoru Hashimoto, Shuji Terai
AIM: To compare the healing effects of vonoprazan and lansoprazole on gastric ulcers induced by endoscopic submucosal dissection (ESD). METHODS: Data were obtained from a total of 26 patients. Fourteen patients were randomized to the vonoprazan group and 12 were randomized to the lansoprazole group. Patients were administered either 20 mg vonoprazan or 30 mg lansoprazole per day after ESD. Endoscopic images just after ESD, on day 8, and on day 28 were used for the evaluation of the shrinking rate of ESD ulcers...
November 16, 2016: World Journal of Gastrointestinal Endoscopy
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