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Mosayeb Moradniani, Zohre Mirbeik-Sabzevari, Soleiman Jaferian, Shiva Shafiezadeh, Mohammad Javad Ehsani Ardakani, Mehrdad Mirzaee Roozbahany, Saleh Azadbakht, Hamidreza Sherkatolabbasieh
Aim: This study was aimed to evaluating the efficacy of levofloxacin based sequential therapy vs clarithromycin based sequential therapy in h.pylori (HP) eradication. Background: Several therapeutic regimen were investigated to treat HP infection. Sequential therapy is an alternative to classic triple therapy. Methods: In this randomized clinical trial, 200 HP infected patients randomly divided into two therapeutic groups .1-Levofloxacin based sequential regimen (group A); omeprazole and amoxicillin for 7days followed by omeprazole, amoxicillin and levofloxacin for 7days...
2018: Gastroenterology and Hepatology From Bed to Bench
Oby Dulla, Sharifa Sultana, Md Shohag Hosen
OBJECTIVE: Esomeprazole is the S-isomer of omeprazole, used to treat gastro esophageal reflux disease. It is one of the widely manufactured and marketed drugs by many pharmaceutical companies in Bangladesh. The aim of the study is to compare the different physical parameters including hardness, friability, diameter, thickness, disintegration time, dissolution test and assay for quality evaluation and characterization of tablets of five different brands of Bangladeshi pharmaceutical company...
March 20, 2018: BMC Research Notes
Jung Jae Jo, Jun Hyun Jo, SunJoo Kim, Jae-Mok Lee, Sangkyu Lee
Cocktail substrates are useful in investigating drug-drug interactions (DDI) that can rapidly identify the cytochrome P450 (CYP) isoforms that interact with test drugs. In this study, we developed and validated five probe drugs for CYP1A, CYP2B, CYP2C, CYP2D, and CYP3A using LC-MS/MS to determine CYP activities in mice. The five probe substrates were caffeine (2 mg/kg), bupropion (30 mg/kg), omeprazole (4 mg/kg), dextromethorphan (40 mg/kg), and midazolam (2 mg/kg) for CYP1A, CYP2B, CYP2C, CYP2D, and CYP3A, respectively...
March 17, 2018: Archives of Pharmacal Research
Fátima Higuera-de-la-Tijera
BACKGROUND: Proton pump inhibitors are the most effective medical therapy for gastroesophageal reflux disease, but their onset of action may be slow. OBJECTIVES: To assess the available literature regarding the efficacy of omeprazole/sodium bicarbonate in gastroesophageal reflux patients. METHODS: A systematic review was conducted. A systematic literature search starting from 2000. Reviewed manuscripts concerning the effectiveness of omeprazole/sodium bicarbonate treatment in gastroesophageal reflux disease were reviewed and the data were extracted...
March 14, 2018: Medwave
Youssef Rouphael, Giampaolo Raimondi, Luigi Lucini, Petronia Carillo, Marios C Kyriacou, Giuseppe Colla, Valerio Cirillo, Antonio Pannico, Christophe El-Nakhel, Stefania De Pascale
Interest in the role of small bioactive molecules (< 500 Da) in plants is on the rise, compelled by plant scientists' attempt to unravel their mode of action implicated in stimulating growth and enhancing tolerance to environmental stressors. The current study aimed at elucidating the morphological, physiological and metabolomic changes occurring in greenhouse tomato (cv. Seny) treated with omeprazole (OMP), a benzimidazole inhibitor of animal proton pumps. The OMP was applied at three rates (0, 10, or 100 μM) as substrate drench for tomato plants grown under nonsaline (control) or saline conditions sustained by nutrient solutions of 1 or 75 mM NaCl, respectively...
2018: Frontiers in Plant Science
Jasmohan S Bajaj, Leroy R Thacker, Andrew Fagan, Melanie B White, Edith A Gavis, Phillip B Hylemon, Robert Brown, Chathur Acharya, Douglas M Heuman, Michael Fuchs, Swati Dalmet, Masoumeh Sikaroodi, Patrick M Gillevet
BACKGROUND: Cirrhosis is associated with gut microbial changes, but current 16S rDNA techniques sequence both dead and live bacteria. We aimed to determine the rRNA content compared with DNA from the same stool sample to evaluate cirrhosis progression and predict hospitalizations. METHODS: Cirrhotics and controls provided stool for RNA and DNA analysis. Comparisons were made between cirrhotics/controls and within cirrhosis (compensated/decompensated, infected/uninfected, renal dysfunction/not, rifaximin use/not) with respect to DNA and RNA bacterial content using linear discriminant analysis...
March 8, 2018: JCI Insight
Alberto Goday, Olga Castañer, David Benaiges, Anna Busquets Pou, José M Ramón, Maria Del Mar Iglesias, Luis Barranco Priego, Juana A Flores Le-Roux
BACKGROUND: Helicobacter pylori (HP) colonization is common in severely obese patients undergoing bariatric surgery. HP eradication treatment could influence the evolution of weight loss and metabolic markers after bariatric surgery. OBJECTIVE: To assess the influence of HP eradication in the clinical course of morbid obesity patients treated with bariatric surgery (gastric bypass (LRYGB) and sleeve gastrectomy (LSG)) METHODS: Retrospective analysis of a prospective cohort of 229 patients that underwent bariatric surgery between 2010 and 2013 in Hospital del Mar...
March 2, 2018: Obesity Surgery
John D Davis, Ashish Bansal, David Hassman, Bolanle Akinlade, Meng Li, Zhaoyang Li, Brian Swanson, Jennifer D Hamilton, A Thomas DiCioccio
This open-label drug-drug interaction study assessed whether blockade by dupilumab of interleukin (IL)-4 and IL-13 signaling affects the pharmacokinetics of drugs metabolized by cytochrome P450 (CYP450) enzymes. The pharmacokinetics of five CYP450 substrates given orally (midazolam, omeprazole, S-warfarin, caffeine, and metoprolol, metabolized by CYP3A, CYP2C19, CYP2C9, CYP1A2 and CYP2D6, respectively) were evaluated before and 28 days after initiation of dupilumab treatment (subcutaneous 300 mg weekly) in 14 patients with moderate-to-severe atopic dermatitis...
March 2, 2018: Clinical Pharmacology and Therapeutics
Nagendran Tharmalingam, Jenna Port, Dawilmer Castillo, Eleftherios Mylonakis
There is an urgent need to discover novel antimicrobial therapies. Drug repurposing can reduce the time and cost risk associated with drug development. We report the inhibitory effects of anthelmintic drugs (niclosamide, oxyclozanide, closantel, rafoxanide) against Helicobacter pylori strain 60190 and pursued further characterization of niclosamide against H. pylori. The MIC of niclosamide against H. pylori was 0.25 μg/mL. Niclosamide was stable in acidic pH and demonstrated partial synergy with metronidazole and proton pump inhibitors, such as omeprazole and pantoprazole...
February 27, 2018: Scientific Reports
Satoshi Koyama, Hiroshi Arakawa, Manabu Itoh, Norio Masuda, Kentaro Yano, Hajime Kojima, Takuo Ogihara
The NanoCulture Plate (NCP) is a novel microstructural plate designed as a base for the three-dimensional culture of cells/tissues. Here, we examined whether or not the metabolic capability of human primary hepatocytes is well maintained during culture on NCPs. The hepatocytes formed aggregates after seeding and their ATP content was well maintained during culture for 21 days. Expression of CYP1A2, 2B6, 2C9, 2C19, 2D6, 2E1 and 3A4 mRNAs was detected throughout the 21-day culture period. Addition of CYP substrate drugs (midazolam, diclofenac, lamotrigine and acetaminophen) resulted in the formation of multiple metabolites with a corresponding decrease in the amounts of the unchanged compounds...
February 22, 2018: Biopharmaceutics & Drug Disposition
M Viljanto, L Hillyer, P Hincks, C Pearce, S W Paine
Medication control and doping control have been established in horse racing to ensure the integrity of the sport and the welfare of the horses. This ensures that horses do not compete under the influence of any drugs, including omeprazole, a therapeutic medication used to treat equine gastric ulcer syndrome. In this study, pharmacokinetic data were produced in equine plasma and urine following an oral administration of 4 mg/kg of generic buffered formulation of omeprazole to six Thoroughbred horses in five daily doses to determine an appropriate screening limit and detection time in equine plasma and to assess whether the current detection time of 72 hr in equine urine would be applicable when an alternative omeprazole product is administered...
February 22, 2018: Journal of Veterinary Pharmacology and Therapeutics
Sai Pavan Chintalapati, Arpan Patel, Hari Conjeevaram
Transarterial chemoembolisation (TACE) is commonly used for unresectable intermediate-stage hepatocellular carcinoma (HCC). TACE is usually well-tolerated. We report a case of a patient who presented with a gastrointestinal bleed from TACE. A 64-year-old man presented with chronic hepatitis C cirrhosis and multifocal bilobar HCC. He had previously undergone multiple TACE sessions, radiofrequency ablation and stereotactic body radiation therapy. In the evening of his TACE procedure, he developed abdominal pain and haematemesis...
February 21, 2018: BMJ Case Reports
Oana Belei, Laura Olariu, Maria Puiu, Cristian Jinca, Cristina Dehelean, Tamara Marcovici, Otilia Marginean
INTRODUCTION: the majority of studies of acute gastrointestinal bleeding in children are retrospective, focusing on therapeutic endoscopy. Previous studies performed in adult patients have demonstrated that both scheduled second look endoscopy and high dose continuous omeprazole infusion are effective in the prevention of peptic ulcer rebleeding. The aim of this study was to compare the efficacy of these two strategies using esomeprazole for the prevention of rebleeding following primary endoscopic hemostasis in children with peptic ulcers...
February 21, 2018: Revista Española de Enfermedades Digestivas
Eugene R Przespolewski, Erica S Westphal, Michelle Rainka, Nicholas M Smith, Vernice Bates, Fran M Gengo
BACKGROUND AND GOAL: Cytochrome P450 (CYP) enzymes are responsible for the conversion of clopidogrel into its active metabolite and the metabolism of proton pump inhibitors (PPIs), which may also inhibit CYP enzymes. A current Food and Drug Administration advisory suggests avoiding esomeprazole and omeprazole while taking clopidogrel because of concerns that PPIs may compromise clopidogrel's antiplatelet effects. The objective of the present study was to examine the robustness of this interaction using a well-controlled study design in a population of participants free of confounders...
February 12, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Jamie E Moscovitz, Amit S Kalgutkar, Kelly Nulick, Nathaniel Johnson, Zhiwu Lin, Theunis C Goosen, Yan Weng
The potential for drug-drug interactions (DDIs) arising from transcriptional regulation of drug disposition genes via activation of nuclear receptors (NRs) such as pregnane X receptor (PXR), constitutive androstane receptor (CAR), and/or aryl hydrocarbon receptor (AhR) remains largely unexplored, as highlighted in a recent guidance document from the European Medicines Agency. The goal of this research was to establish PXR/CAR/AhR-specific drug metabolizing enzyme (DME) and transporter gene expression signatures in sandwich-cultured cryopreserved human hepatocytes using selective activators of PXR (rifampin), CAR (CITCO) and AhR (omeprazole)...
February 12, 2018: Journal of Pharmacology and Experimental Therapeutics
Sophie Gravel, Jean-Louis Chiasson, Suzanne Dallaire, Jacques Turgeon, Veronique Michaud
INTRODUCTION: Diabetes affects more than 9% of the adult population worldwide. Patients with type 2 diabetes mellitus (T2DM) show variable responses to some drugs which may be due, in part, to variability in the functional activity of drug-metabolising enzymes including cytochromes P450 (CYP450s). CYP450 is a superfamily of enzymes responsible for xenobiotic metabolism. Knowledge must be gained on the impact of T2DM and related inflammatory processes on drug metabolism and its consequences on drug response...
February 8, 2018: BMJ Open
Daciana Elena Brănișteanu, Simona Laura Ianoşi, Andreea Dimitriu, Gabriela Stoleriu, Alexandru Oanţǎ, Daniel Constantin Brănișteanu
Rowell syndrome is defined as the association between lupus erythematosus, erythema multiforme-like lesions and characteristic immunological changes including positive tests for rheumatoid factor, speckled antinuclear antibody, positive anti-Ro or anti-La antibodies. The present report presents the case of a 45-year-old female patient who was previously diagnosed in January 2010 with terbinafine-induced subacute cutaneous lupus erythematosus and was admitted for a skin eruption consisting of erythematous-papular erythema multiforme-like lesions, primarily on the trunk and limbs...
January 2018: Experimental and Therapeutic Medicine
Afzal Hussain, Mohamed F Alajmi, Imran Ali
Pentafluorophenyl (PFP) Column is emerging as a new advancement in separation science to analyze a wide range of analytes and, thus, its separation mechanism at supramolecular level is significant. We developed a mechanism for the separation of ibuprofen and omeprazole using different combinations (ranged from 50:50 to 60:40) of water-acetonitrile containing 0.1% formic acid as the mobile phase. The column used was Waters Acquity UPLC HSS PFP (75 x 2.1 mm, 1.8 μm). The reverse order of elution was observed in different combinations of the mobile phases...
February 12, 2018: Biomedical Chromatography: BMC
Ying Zhang, Lan Miao, Li Lin, Chang-Ying Ren, Jian-Xun Liu, Yi-Min Cui
BACKGROUND: Sailuotong (SLT) is a standard Chinese preparation made from extracts of Panax ginseng (ginseng), Ginkgo biloba (ginkgo), and Crocus sativus (saffron). Preliminary clinical trials and animal experiments have demonstrated that SLT could improve cognition of vascular dementia (VD). PURPOSE: To avoid incident drug-drug interaction which is easily encountered in patients of VD, the potential influence of SLT on main drug-metabolic cytochromes P450 enzymes (CYP450) was investigated...
January 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Qinchen Li, Xinxin Hu, Yanhan Xuan, Jianghua Ying, Yujia Fei, Jielu Rong, Yong Zhang, Jian Zhang, Chunyan Liu, Zheng Liu
Gastric ulcers (GUs) are common pathologies that affect many people around the world. Excessive alcohol consumption is one of the main causes of GUs; however, there are still lack of effective drugs for the prevention or therapy of GUs. In this study, we evaluated the protective effects and possible mechanisms of kaempferol (KAE) against acute ethanol-induced lesions to the gastric mucosa in mice. Fasted mice were orally given vehicle (0.9% saline), omeprazole (20 mg/kg), or KAE (40, 80, or 160 mg/kg) for 1 h in different experimental sets prior to the establishment of the GU model by challenge with absolute ethanol (10 ml/kg)...
February 3, 2018: Acta Biochimica et Biophysica Sinica
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