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https://www.readbyqxmd.com/read/28545189/outcomes-of-a-randomized-controlled-trial-comparing-modified-high-dose-omeprazole-and-amoxicillin-triple-therapy-with-standard-triple-therapy-for-helicobacter-pylori-eradication
#1
Kitti Chunlertlith, Uaepong Limpapanasit, Pisaln Mairiang, Suda Vannaprasaht, Wichittra Tassaneeyakul, Apichat Sangchan, Kookwan Sawadpanich, Tanita Suttichaimongkol, Jamrus Pongpit, Moragot Pattarapongsin
Background: Helicobacter pylori (H. pylori) infection is related to peptic ulcer diseases and gastric cancer and eradication of H. pylori should be expected to decrease the risk of their development. Factors affecting H. pylori eradication are antibiotic resistance, CYP2C19 genotypes, drug regimen and patient compliance. Increment of omeprazole and amoxicillin dosage in clarithromycin-containing triple therapy regimen may overcome these problems and may be a better choice than the conventional clarithromycin-containing triple therapy regimen...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28544933/cardiotoxic-effect-of-levofloxacin-and-ciprofloxacin-in-rats-with-without-acute-myocardial-infarction-impact-on-cardiac-rhythm-and-cardiac-expression-of-kv4-3-kv1-2-and-nav1-5-channels
#2
Ahmed M Abdelrady, Sawsan A Zaitone, Noha E Farag, Manal S Fawzy, Yasser M Moustafa
Prolongation of QT interval is possible with fluoroquinolones, yet the underlying contributing factors have not been elucidated. Two widely used fluoroquinolone drugs were at the focus of this study in rats with/without acute myocardial dysfunction (AMI) induced by isoproterenol. The effects of levofloxacin and ciprofloxacin on the cardiac mRNA expression of rat Kv4.3, Kv1.2 and Nav1.5 mRNAs were determined. Administration of the two antibiotics produced dose-dependent changes in ECG parameters that were more prominent in rats with AMI than healthy rats; this was accompanied by elevations in serum lactate dehydrogenase and creatine kinase-MB...
May 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28544885/overcoming-interference-with-the-detection-of-a-stable-isotopically-labeled-microtracer-in-the-evaluation-of-beclabuvir-absolute-bioavailability-using-a-concomitant-microtracer-approach
#3
Hao Jiang, Craig Titsch, Jianing Zeng, Barry Jones, Philip Joyce, Yash Gandhi, Wesley Turley, Richard Burrell, Anne F Aubry, Mark E Arnold
The oral absolute bioavailability of beclabuvir in healthy subjects was determined using a microdose (100μg) of the stable isotopically labeled tracer via intravenous (IV) infusion started after oral dosing of beclabuvir (150mg). To simultaneously analyze the concentrations of the IV microtracer ([(13)C6]beclabuvir) and beclabuvir in plasma samples, a liquid chromatography-triple quadrupole mass spectrometry (LC-MS/MS) method was initially developed. Surprisingly beclabuvir significantly interfered with the IV microtracer detection when using the selected reaction monitoring (SRM) in the assay...
May 17, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28544814/optimization-of-liposomal-topotecan-for-use-in-treating-neuroblastoma
#4
Lina Chernov, Rebecca J Deyell, Malathi Anantha, Nancy Dos Santos, Roger Gilabert-Oriol, Marcel B Bally
The purpose of this work was to develop an optimized liposomal formulation of topotecan for use in the treatment of patients with neuroblastoma. Drug exposure time studies were used to determine that topotecan (Hycamtin) exhibited great cytotoxic activity against SK-N-SH, IMR-32 and LAN-1 neuroblastoma human cell lines. Sphingomyelin (SM)/cholesterol (Chol) and 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC)/Chol liposomes were prepared using extrusion methods and then loaded with topotecan by pH gradient and copper-drug complexation...
May 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544619/design-and-synthesis-of-some-acridine-piperazine-hybrids-for-the-improvement-of-cognitive-dysfunction
#5
Anuradha Sharma, Poonam Piplani
A novel series of hybrid molecules (5a-5m) was designed, synthesized and evaluated as multifunctional cholinesterase (ChE) inhibitors against cognitive dysfunction. Heterocyclic moieties acridine and piperazine were conjugated with suitable linkers in a single scaffold and the structures of the target compounds were confirmed by IR, (1) H NMR, (13) C NMR and LC-MS analysis. The pharmacological activity of synthesized compounds was evaluated using behavioral models of amnesia viz. step down passive avoidance and elevated plus maze at a dose 0...
May 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28544534/time-to-event-analysis-of-polatuzumab-vedotin-induced-peripheral-neuropathy-to-assist-in-the-comparison-of-clinical-dosing-regimens
#6
D Lu, W R Gillespie, S Girish, P Agarwal, C Li, J Hirata, Y-W Chu, M Kagedal, L Leon, V Maiya, J Y Jin
Polatuzumab vedotin, an antibody-drug conjugate containing monomethyl auristatin E, was associated with an incidence of grade ≥2 peripheral neuropathy (PN) of 55-72% in patients with indolent non-Hodgkin lymphoma in a phase II study, when dosed 1.8-2.4 mg/kg every 3 weeks until progression or for a maximum of 17 cycles. To quantify the correlation of conjugate exposure and treatment duration with PN risk, a time-to-event model was developed using data from phase I and II studies. The model suggested that PN risk increased with conjugate exposure and treatment cycles, and a trend for increased risk with body weight and albumin concentration...
May 23, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28544467/a-survey-on-the-beliefs-and-knowledge-of-gout-management-in-new-medical-graduates-new-south-wales-australia
#7
Matthew Terrill, John Riordan
AIM: To assess the beliefs and knowledge of gout management in new medical graduates. METHOD: A survey on gout management was sent to new medical graduates during their orientation week, New South Wales, Australia. RESULTS: Of 15 hospital networks, 11 agreed to participate. From these, 168 graduates responded (23.7% response rate). Most (81.1%) felt that gout was a serious disease, 51.2% answered that they had been taught adequately to manage acute gout, only 37...
May 25, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28544243/evening-versus-morning-dosing-regimen-drug-therapy-for-chronic-kidney-disease-patients-with-hypertension-in-blood-pressure-patterns-a-systematic-review-and-meta-analysis
#8
Caixia Wang, Yuqiu Ye, Chunyong Liu, Yongming Zhou, Linsheng Lv, Cailian Cheng, Shaomin Li, Tanqi Lou, Xun Liu
BACKGROUND: Evening dosing regimen drug therapy on blood pressure (BP) control is used widely, but its clinical benefits and preservation or re-establishment of normal 24-hour BP dipping pattern in chronic kidney disease (CKD) patients is not known. AIMS: To investigate the effect of evening dosing regimen of antihypertensive drugs on blood pressure patterns to CKD patients with hypertension. METHODS: We did a systematic review by searching PUBMED, EMBASE, ASN-ONLINE, the Cochrane Library and the reference lists of relevant articles of published papers...
May 24, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28544106/inappropriate-prescribing-in-chronic-kidney-disease-a-systematic-review-of-prevalence-associated-clinical-outcomes-and-impact-of-interventions
#9
REVIEW
Wubshet Hailu Tesfaye, Ronald L Castelino, Barbara C Wimmer, Syed Tabish R Zaidi
INTRODUCTION: Adjusting doses of renally cleared medications and/or avoidance of nephrotoxic medications are standard clinical practices in chronic kidney disease (CKD), albeit the prevalence of inappropriate prescribing (IP) in these patients remains high. Therefore, this work sought to systematically review the prevalence of IP and compare the relative effectiveness of available interventions in reducing IP in CKD. METHODS: Studies were identified searching PubMed/Medline, EMBASE, Cochrane Library, IPA, Web of Science, Ovid/Medline, CINAHL, and PsychINFO databases...
May 23, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28544068/interstitial-fluid-pressure-a-novel-biomarker-to-monitor-photo-induced-drug-uptake-in-tumor-and-normal-tissues
#10
Sabrina Cavin, Xingyu Wang, Matthieu Zellweger, Michel Gonzalez, Michaël Bensimon, Georges Wagnières, Thorsten Krueger, Hans-Beat Ris, Fabrizio Gronchi, Jean Y Perentes
BACKGROUND: Low-dose photodynamic therapy PDT (photoinduction) can modulate tumor vessels and enhance the uptake of liposomal cisplatin (Lipoplatin®) in pleural malignancies. However, the photo-induction conditions must be tightly controlled as overtreatment shuts down tumor vessels and enhances normal tissue drug uptake. MATERIAL AND METHODS: In a pleural sarcoma and adenocarcinoma rat model (n = 12/group), we applied photoinduction (0.0625 mg/kg Visudyne®, 10 J/cm(2) ) followed by intravenous Lipoplatin® (5 mg/kg) administration...
May 22, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28543822/good-for-the-lung-but-bad-for-the-liver-garlic-induced-hepatotoxicity-following-liver-transplantation
#11
S A Shaikh, S Tischer, E K Choi, R J Fontana
WHAT IS KNOWN AND OBJECTIVE: Limited data exist surrounding the metabolism and safety of garlic supplements. CASE DESCRIPTION: A patient with a history of hepatopulmonary syndrome (HPS) and orthotopic liver transplantation was admitted to our surgery transplant service with severe hypoxaemia. The patient was started on high-dose Garlicin Cardio(®) (Allium sativum) for HPS and soon after had elevated liver function tests. Garlicin Cardio(®) was discontinued and liver enzymes normalized...
May 25, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28543813/inhaled-pulmonary-vasodilator-therapy-for-management-of-right-ventricular-dysfunction-after-left-ventricular-assist-device-placement-and-cardiac-transplantation
#12
Leah A Sabato, David M Salerno, Jeremy D Moretz, Douglas L Jennings
Right ventricular failure (RVF) after cardiac transplant (CTX) or implantation of a continuous-flow left ventricular assist device (CF-LVAD) is associated with significant post-operative morbidity and mortality. A variety of modalities have been used to treat post-operative RVF, including management of volume status, intravenous inotropes and vasodilators, and right-sided mechanical support. Inhaled vasodilator agents are a unique treatment option aimed at minimizing systemic absorption by delivering therapy directly to the pulmonary vasculature...
May 24, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28543690/smokeless-tobacco-consumption-and-stillbirth-population-based-case-control-study-in-rural-bangladesh
#13
Mohammad Shakhawat Hossain, Kypros Kypri, Bayzidur Rahman, Abul Hasnat Milton
INTRODUCTION AND AIMS: To investigate the association between smokeless tobacco consumption (STC) during pregnancy and risk of stillbirth. DESIGN AND METHODS: We conducted a population-based case-control study of 253 cases and 759 randomly selected control women in Madaripur, Bangladesh. We conducted a survey of two rural local government areas, including 8082 women, and identified cases based on self-report of a stillbirth outcome of each participant's first pregnancy...
May 25, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28543415/the-anatomy-of-research-scandals
#14
Carl Elliott
For the past two years, I have taught a seminar on medical research scandals. The syllabus looks like a highlight reel of exploitation and abuse: children fed plutonium-laced breakfast cereal, prisoners dosed with the active ingredient in Agent Orange, mental patients given psychedelic drugs and massive electroconvulsive therapy before being sent into curare-induced paralysis and a coma. I designed the seminar to crush the idealism of future physicians by illuminating the dark patterns that research scandals typically follow...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28543393/model-based-evaluation-of-exenatide-effects-on-the-qt-interval-in-healthy-subjects-following-continuous-iv-infusion
#15
Brenda Cirincione, Frank LaCreta, Philip Sager, Donald E Mager
Investigation of the cardiovascular proarrhythmic potential of a new chemical entity is now an integral part of drug development. Studies suggest that meals and glycemic changes can influence QT intervals, and a semimechanistic model has been developed that incorporates the effects of changes in glucose concentrations on heart rate (HR) and QT intervals. This analysis aimed to adapt the glucose-HR-QT model to incorporate the effects of exenatide, a drug that reduces postprandial increases in glucose concentrations...
May 22, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28543367/successful-treatment-of-methicillin-susceptible-staphylococcus-aureus-osteomyelitis-with-oritavancin
#16
Dino J Delaportas, Sandy J Estrada, Matthew Darmelio
Staphylococcus aureus remains the most common causative pathogen in osteomyelitis. New or alternate therapies are often needed to adequately treat S. aureus infections in patients with drug allergies, treatment failures, or drug interactions. Oritavancin is a novel long-acting lipoglycopeptide approved by the Food and Drug Administration (FDA) in 2014 for the treatment of Acute Bacterial Skin and Skin Structure Infections (ABSSSI). With a terminal half-life of 8 to 10 days, oritavancin dosing regimens with infrequent parenteral administration now exist to treat infectious diseases such as osteomyelitis that would otherwise require daily dosing of intravenous antimicrobials for weeks; however clinical experience is lacking...
May 23, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28543298/synthesis-and-preclinical-pharmacokinetic-study-of-dha-10-a-novel-potential-antifungal-pogostone-analogue
#17
Ming Liu, Yanfen Zhou, Jianwei Zhu, Bo Ma, Zheng Fang, Qi Zhang
OBJECTIVES: The emergence of fungal disease calls for the urgency of development of novel drug. In this study, we developed a novel pogostone analogue, DHA-10 and investigated its preclinical pharmacokinetics, tissue distribution, excretion and protein binding rate in rats. METHODS: DHA-10 was synthesized with dehydroacetic acid (DHA) as the starting material and the structure confirmed by NMR and HRMS. The LC-MS/MS was applied to quantitative analysis of DHA-10 concentrations in the biological samples...
May 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28543084/population-pharmacokinetics-and-exposure-response-assessment-of-cc-292-a-potent-btk-inhibitor-in-patients-with-chronic-lymphocytic-leukemia
#18
Yan Li, Francisco Ramírez-Valle, Yongjun Xue, Judith I Ventura, Olivier Gouedard, Jay Mei, Kenichi Takeshita, Maria Palmisano, Simon Zhou
CC-292, a potent Bruton tyrosine kinase inhibitor, is under development for the treatment of B-cell malignancies. An analysis was performed to develop a population pharmacokinetic model of CC-292 and assess the influence of demographics and disease-related covariates on CC-292 exposure and to assess the exposure-response (overall response rate) relationship in patients with chronic lymphocytic leukemia. Population pharmacokinetic analysis was based on a 2-compartment base model conducted in NONMEM. Categorical exposure-response analysis was performed using logistic regression in SAS...
May 19, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28542985/cholinesterase-reactivators-and-bioscavengers-for-pre-and-post-exposure-treatments-of-organophosphorus-poisoning
#19
REVIEW
Patrick Masson, Florian Nachon
Organophosphorus agents (OPs) irreversibly inhibit acetylcholinesterase (AChE) causing a major cholinergic syndrome. The medical counter-measures of OP poisoning have not evolved for the last 30 years with carbamates for pretreatment, pyridinium oximes-based AChE reactivators, antimuscarinic drugs and neuroprotective benzodiazepines for post-exposure treatment. These drugs ensure protection of peripheral nervous system and mitigate acute effects of OP lethal doses. However, they have significant limitations...
May 21, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28542735/sleep-convulsive-seizures-predict-lack-of-remission-in-genetic-generalized-epilepsies-a-retrospective-study-from-a-single-epilepsy-center-in-egypt
#20
A Ashmawi, H Hosny, M Gadallah, E Beghi
BACKGROUND: Genetic generalized epilepsies (GGEs) represent 15-20% of all epilepsies. There are no studies on the outcome of GGEs in the Middle East. AIMS: To investigate the long-term prognosis of GGEs and identify prognostic predictors in Egypt. MATERIAL & METHODS: This is a retrospective cohort study of consecutive children and adults with GGEs seen in an epilepsy clinic in Cairo, Egypt, followed for 10+ years. Follow-up visits were scheduled every 3-6 months or earlier...
May 21, 2017: Acta Neurologica Scandinavica
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