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Cong Wu, Meng-Qing Gong, Bo-Ya Liu, Ren-Xi Zhuo, Si-Xue Cheng
To effectively reverse multiple drug resistance (MDR) in tumor treatments, a functional nano-sized drug delivery system with active targeting function and pH sensitivity was prepared for the co-delivery of multiple drug resistance inhibitors. Buthionine sulfoximine (BSO) to inhibit GSH synthesis and celecoxib (CXB) to down-regulate P-gp expression were co-loaded in polymer/inorganic hybrid nanoparticles to form buthionine sulfoximine/celecoxib@biotin-heparin/heparin/calcium carbonate/calcium phosphate nanoparticles (BSO/CXB@BNP)...
October 13, 2016: Colloids and Surfaces. B, Biointerfaces
Ai Ueki, Tomohisa Okuma, Shinichi Hamamoto, Yukio Miki
Purpose To evaluate survival time with concurrent, combined use of radiofrequency ablation (RFA) and one of the commonly used platinum-doublet chemotherapies (cisplatin [CDDP]/paclitaxel [PTX], CDDP/vinorelbine [VNR], CDDP/adriamycin [ADR], or CDDP/pemetrexed [MTA] combinations) by using a rabbit VX2 lung tumor model. Materials and Methods The experiment was approved by the institutional animal care committee. VX2 cells were implanted into the lungs of 60 rabbits randomized into groups treated with supportive care (control group), RFA alone, chemotherapy alone (CDDP/PTX, CDDP/VNR, CDDP/ADR, or CDDP/MTA), or a combination of RFA and chemotherapy (RFA/CDDP/PTX, RFA/CDDP/VNR, RFA/CDDP/ADR, or RFA/CDDP/MTA)...
October 21, 2016: Radiology
Duk Hwan Kim, Soo Jung Park, Jae Hee Cheon, Tae Il Kim, Won Ho Kim, Sung Pil Hong
OBJECTIVES: The objective of this study was to determine whether a pre-training program influences the entire learning process and overall proficiency of colonoscopy during fellowship. METHODS: From March 2011 to February 2013, a total of 28 first-year gastrointestinal fellows were trained in colonoscopy at a single tertiary center. Before entering their fellowship training, all fellows were board certified in internal medicine, but had no experience performing a full colonoscopy...
2016: PloS One
Outi Laatikainen, Sami Sneck, Risto Bloigu, Minna Lahtinen, Timo Lauri, Miia Turpeinen
Adverse drug events (ADEs) are more likely to affect geriatric patients due to physiological changes occurring with aging. Even though this is an internationally recognized problem, similar research data in Finland is still lacking. The aim of this study was to determine the number of geriatric medication-related hospitalizations in the Finnish patient population and to discover the potential means of recognizing patients particularly at risk of ADEs. The study was conducted retrospectively from the 2014 emergency department patient records in Oulu University Hospital...
2016: Frontiers in Pharmacology
Yingze Wei, Danyang Liu, Xiaoxia Jin, Pan Gao, Qingying Wang, Jiawen Zhang, Nong Zhang
Acquired resistance to doxorubicin in breast cancer is a serious therapeutic problem. In this study, we investigated whether Pseudomonas aeruginosa mannose-sensitive hemagglutinin (PA-MSHA) could inhibit the growth of doxorubicin-resistant breast cancer cells. We found that the expressions of Nrf2 and p62 in breast cancer were higher than that in the corresponding adjacent normal tissues and benign breast epithelial cell. The expressions of Nrf2 and p62 in breast cancer doxorubicin-resistant cells MCF-7/ADR were higher than that in doxorubicin-sensitive cells MCF-7...
October 18, 2016: Cancer Medicine
Colin Johnston
Aldosterone's deleterious pathophysiological effects on the cardiovascular system if blocked by mineralcorticord antagonists (MRAs) logically should lead to improvement in heart function and outcomes in heart failure (HF). The first trial to test this hypothesis was tthe RALES trial in 1999 which treated patients with class III-IV HF with spironolactone. It showed significant reduction in mortality and cardiovascular hospitalzation rates. This was confirmed & extended in EMHASIS-HF RCT with classs II-III being treated with ACEIs & BB who received placebo or elperinone (a MRA) with again a statistically significant fall in mortality & hospitalization...
September 2016: Journal of Hypertension
Katherine C Konvinse, Elizabeth J Phillips, Katie D White, Jason A Trubiano
PURPOSE OF REVIEW: Antimicrobials are a leading cause of severe T cell-mediated adverse drug reactions (ADRs). The purpose of this review is to address the current understanding of antimicrobial cross-reactivity and the ready availability of and evidence for in-vitro, in-vivo, and ex-vivo diagnostics for T cell-mediated ADRs. RECENT FINDINGS: Recent literature has evaluated the efficacy of traditional antibiotic allergy management, including patch testing, skin prick testing, intradermal testing, and oral challenge...
October 7, 2016: Current Opinion in Infectious Diseases
Hiromitsu Kumada, Hiroshi Miyakawa, Taro Muramatsu, Naoki Ando, Takanori Oh, Kenji Takamori, Hidetomo Nakamoto
AIMS: Patients with chronic liver disease sometimes develop cholestasis, which induces severe whole-body pruritus that may disrupt daily activities and sleep. To determine the efficacy of nalfurafine hydrochloride (5 µg), which is a selective κ-opioid receptor agonist, in improving pruritus, we conducted a double-blind placebo-controlled study in patients with chronic liver disease with refractory pruritus. Nalfurafine hydrochloride at 2.5 µg was also used to evaluate the dose-response relationship...
October 18, 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
Isabelle Récoché, Vanessa Rousseau, Robert Bourrel, Maryse Lapeyre-Mestre, Leila Chebane, Fabien Despas, Jean-Louis Montastruc, Emmanuelle Bondon-Guitton
Many patients treated with imatinib, used in cancer treatment, are using several other drugs that could interact with imatinib. Our aim was to study all the drug-drug interactions (DDIs) observed in patients treated with imatinib.We performed 2 observational studies, between the 1st January 2012 and the 31st August 2015 in the Midi-Pyrénées area (South Western France), using the French health insurance reimbursement database and then the French Pharmacovigilance Database (FPVD).A total of 544 patients received at least 1 reimbursement for imatinib...
October 2016: Medicine (Baltimore)
Gulnihal Ozcan, Emel Aykac, Yelda Kasap, Nergiz T Nemutlu, Ebru Sen, N Demet Aydinkarahaliloglu
INTRODUCTION: In Turkey, pharmacovigilance began in 1985. A fully structured adverse drug reaction (ADR)-reporting system was established with the publication of the first pharmacovigilance regulation in 2005. Subsequent regulation published in 2014 brought further improvements to the system. OBJECTIVE: In this study, we aimed to analyse the ADR-reporting pattern in the context of the first pharmacovigilance legislation in Turkey. METHODS: We analysed ADR reports submitted to the Turkish Pharmacovigilance Center (TUFAM) from 2005 to 2014 with respect to reporting rate (RR), patient characteristics, type of the ADRs, suspected drugs, source of the report and the profession of the reporter...
March 2016: Drugs—Real World Outcomes
Stephanie Cham, Hayley J Koslik, Beatrice A Golomb
Psychiatric adverse drug reactions (ADRs) have been reported with statin use, but the literature regarding statin-associated mood/behavioral changes remains limited. We sought to elicit information germane to natural history and characteristics of central nervous system/behavioral changes in apparent connection with statin and/or cholesterol-lowering drug use, and delineate mechanisms that may bear on an association. Participants (and/or proxies) self-referred with behavioral and/or mood changes in apparent association with statins completed a survey eliciting cholesterol-lowering drug history, character and impact of behavioral/mood effect, time-course of onset and recovery in relation to drug use/modification, co-occurrence of recognized statin-associated ADRs, and factors relevant to ADR causality determination...
December 2016: Drug Saf Case Rep
Takao Koike, Masayoshi Harigai, Naoki Ishiguro, Shigeko Inokuma, Syuji Takei, Tsutomu Takeuchi, Hisashi Yamanaka, Yoshinari Takasaki, Tsuneyo Mimori, Katsutoshi Hiramatsu, Shuichi Komatsu, Yoshiya Tanaka
INTRODUCTION: There is insufficient evidence regarding the appropriate dose of methotrexate (MTX) required to achieve specific treatment goals in patients with rheumatoid arthritis (RA) receiving biologic drugs in Japan. The present study aimed to assess the dose-response effect of MTX in combination with adalimumab (ADA) to achieve low disease activity (LDA) and/or remission at 24 weeks in RA patients. METHODS: This analysis used data of the ADA all-case survey in Japan (n = 7740), and 5494 patients who received ADA and MTX were classified into five groups by weighted average MTX dose (>0-<4, 4-<6, 6-<8, 8-< 10, and ≥10 mg/week)...
June 2016: Rheumatol Ther
Anthony Razzak, Dineen Smith, Maliha Zahid, Georgios Papachristou, Asif Khalid
Background and aims: Adenoma detection rate (ADR) and cecal withdrawal time (CWT) have been identified as measures of colonoscopy quality. This study evaluates the impact of monitoring these measures on provider performance. Methods: Six blinded gastroenterologists practicing at a Veterans Affairs Medical Center were prospectively monitored over 9 months. Data for screening, adenoma surveillance, and fecal occult blood test positive (FOBT +) indicated colonoscopies were obtained, including exam preparation quality, cecal intubation rate, CWT, ADR, adenomas per colonoscopy (APC), and adverse events...
October 2016: Endoscopy International Open
Hongyu Shen, Dandan Wang, Liangpeng Li, Sujin Yang, Xiu Chen, Siying Zhou, Shanliang Zhong, Jianhua Zhao, Jinhai Tang
BACKGROUND AND PURPOSE: Acquisition of resistance to adriamycin (ADR) is one of the most important clinical obstacles in the treatment of breast cancer, but the molecular mechanisms underlying sensitivity to ADR remain elusive. In our previous study, through miRNA microarray and experiments, we have emphasized that miR-222 could promote the ADR-resistance in breast cancer cells. The aim of this study was to explore the possible mechanism by which miR-222 affects sensitivity to ADR. METHODS: Through pathway enrichment analyses for miR-222, we found that PTEN/Akt/FOXO1 signaling pathway may be of importance...
October 13, 2016: Gene
Yanping Li, Rui Li, Qinhui Liu, Wenyao Li, Ting Zhang, Min Zou, Hong Li, Tong Wu, Shihai Cheng, Zhiguang Su, Zhirong Zhang, Jinhan He
Tumor cells can acquire multidrug resistance (MDR) as a result of drug efflux mediated by P-glycoprotein (P-gp). Here we report a targeted delivery system to carry pirarubicin (THP) to MDR breast cancer both in vitro and in vivo. PEG-derivatized vitamin E (PAMV6) amphiphiles loaded with THP were self-assembled in a single step. The PAMV6 micelles showed unimodal size distribution and high drug loading efficiency. Cytotoxicity of PAMV6/THP was higher than that of free THP on MCF-7/ADR cells but comparable to that of THP on MCF-7 cells...
October 15, 2016: Molecular Pharmaceutics
Choki Dorji, Pramote Tragulpiankit, Arthorn Riewpaiboon, Tashi Tobgay
INTRODUCTION: The Bhutan National Pharmacovigilance Centre (NPC) became an official member of the WHO Programme for International Drug Monitoring in December 2014; however, the number of adverse drug reactions (ADRs) reported is very low (50 reports per 773,722 inhabitants over 10 years). Surveys of healthcare professionals (HCPs) in similar countries have indicated that adequate knowledge of both ADRs and ADR reporting is likely to increase the number of ADR reports submitted. OBJECTIVE: The aim of this study was to investigate the level of knowledge of both ADRs and ADR reporting among HCPs, including traditional medicine practitioners...
October 14, 2016: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
Lukshe Kanagaratnam, Moustapha Dramé, Jean-Luc Novella, Thierry Trenque, Clarisse Joachim, Pierre Nazeyrollas, Damien Jolly, Rachid Mahmoudi
OBJECTIVE: To identify risk factors for the occurrence of adverse drug reactions (ADRs) based on geriatric evaluation. DESIGN: Longitudinal prospective study from May 2010 to November 2011. SETTING: Dedicated acute geriatric care unit specializing in the management of patients with dementia syndrome (Alzheimer disease or related syndromes) at the University Hospital of Reims, France. PARTICIPANTS: Older patients with dementia syndrome (Alzheimer disease or related syndromes)...
September 1, 2016: American Journal of Geriatric Psychiatry
Jisha Myalil Lucca, Madhan Ramesh, Gurumurthy Parthasarathi, Dushad Ram
AIMS/OBJECTIVES: Psychotropic drugs are associated with significant short-term and long-term safety issues which may affect patients' mental health, physical health and cost of care. EXPERIMENTAL DESIGNS: This was a prospective study conducted in psychiatry department of a tertiary care hospital. Study included patients of any age and either sex who presented with psychiatric illness as diagnosed by ICD-10 and were receiving at least one psychotropic agent. The study involved both intensive and spontaneous reporting methods to identify ADRs...
March 1, 2016: Psychopharmacology Bulletin
Dirk Wackernagel, Sami Obaya, Per Nydert
Drug fever caused by dalteparin-sodium (DS), a low-molecular-weight derivative of heparin, is neither listed in the official drug information and nor published as a case report until today. A preterm infant, born at 26 weeks of gestation, developed fever 2 days after starting a treatment with DS for an intracardial thrombus. The fever reverses soon after changing the treatment to unfractionated heparin and reappeared after reintroduction of DS. Once again, after discontinuing DS, the infant regained normothermia...
October 13, 2016: BMJ Case Reports
Amy Tanti, Benjamin Micallef, Anthony Serracino-Inglott, John-Joseph Borg
Regulatory authorities have a legal mandate to implement and maintain a Pharmacovigilance System designed to monitor the safety of authorised medicinal products and detect any change to their risk-benefit balance. Areas covered: This review maps the implementation of pharmacovigilance activities in Malta since accession in the EU in mid 2004 and discusses the challenges the Maltese Regulator encountered while setting up adequate and effective systems to fulfil its legal mandate. Areas reviewed are those around ADR reporting, promotion and safety communications including rapid alerts and recalls, direct healthcare professional communications, risk minimisation measures and safety circulars and quality systems...
October 12, 2016: Expert Opinion on Drug Safety
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