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https://www.readbyqxmd.com/read/28425588/drug-resistance-reversal-by-combretastatin-a4-phosphate-loaded-with-doxorubicin-in-polymersomes-independent-of-angiogenesis-effect
#1
Jinfang Zhu, Mengying Hu, Liyan Qiu
OBJECTIVES: This study aimed to evaluate that the polymersomes (Ps-DOX-CA4P) dual-loaded with combretastatin-A4 phosphate (CA4P) and doxorubicin (DOX) overcame drug resistance and sensitized tumour cells to chemotherapeutic drugs. METHODS: Ps-DOX-CA4P were prepared by solvent evaporation method using mPEG-b-PLA as carriers. The potential capability of CA4P to reverse DOX resistance was verified by cytotoxicity test, apoptosis assay and cellular uptake of DOX. The comparison between free drugs and drug-loaded polymersomes was also made on a single-layer cell model and multicellular tumour spheroids to display the superiority of the drug vehicles...
April 20, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28425236/predictors-of-health-related-quality-of-life-in-childhood-epilepsy-and-comparison-with-healthy-children-findings-from-an-indian-study
#2
Dipika Bansal, Chandrika Azad, Kapil Gudala, Anil Dasari
BACKGROUND/AIM: Children with epilepsy have reduced health-related quality of life (HRQOL) due to disease and medications. We aimed to assess child-reported HRQOL in Indian children with epilepsy and compare it with that in healthy children. MATERIALS AND METHODS: A cross-sectional study of 256 children with epilepsy aged between 5 and 18 years on antiepileptic drug (AED) treatment for at least 3 months was performed and 125 age and sex matched healthy children were included...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28423731/a-multifunctional-lipid-nanoparticle-for-co-delivery-of-paclitaxel-and-curcumin-for-targeted-delivery-and-enhanced-cytotoxicity-in-multidrug-resistant-breast-cancer-cells
#3
Jong-Suep Baek, Cheong-Weon Cho
The objective of the work was to develop a multifunctional nanomedicine based on a folate-conjugated lipid nanoparticles loaded with paclitaxel and curcumin. The novel system combines therapeutic advantageous of efficient targeted delivery via folate and timed-release of curcumin and paclitaxel via 2-hydroxypropyl-ß-cyclodextrin, thereby overcoming multidrug resistance in breast cancer cells (MCF-7/ADR). The faster release of curcumin from the folate-conjugated curcumin and paclitaxel-loaded lipid nanoparticles enables sufficient p-glycoprotein inhibition, which allows increased cellular uptake and cytotoxicity of paclitaxel...
March 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423695/ndrg2-promotes-adriamycin-sensitivity-through-a-bad-p53-complex-at-the-mitochondria-in-breast-cancer
#4
Yifang Wei, Shentong Yu, Yongping Zhang, Yuan Zhang, Huadong Zhao, Zhixiong Xiao, Libo Yao, Suning Chen, Jian Zhang
Chemo-resistance presents a difficult challenge for the treatment of breast cancer. Our previous study showed that N-Myc downstream-regulated gene 2 (NDRG2) is involved in p53-mediated apoptosis induced by chemotherapy, through a mechanism that has so far remained obscure. Here, we explored the role of NDRG2 in chemo-resistance with a focus on Adriamycin (ADR) and found that NDRG2 expression decreased in ADR resistance breast cancer cells. Interestingly, NDRG2 can promote ADR sensitivity by inhibiting proliferation, enhancing cellular damage responses, and promoting apoptosis in a p53-dependent manner...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421910/multi-step-treatment-for-acquired-alexia-and-agraphia-part-ii-a-dual-route-error-scoring-system
#5
Katrina Ross, Jeffrey P Johnson, Swathi Kiran
Dual-route neuropsychological models posit two distinct but interrelated pathways for reading and writing: the lexical and the sublexical. Individuals with reading/writing deficits often rely on the combined power of the integrated system to perform print-processing tasks. The resultant errors reflect varying degrees of lexical and sublexical accuracy in a single production; however, no system presently exists to analyze errors robustly in both routes. The goal of this project was to develop a system that simultaneously, quantitatively, and qualitatively captures changes in lexical and sublexical errors following treatment...
April 19, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28419314/adverse-drug-reactions-during-drug-resistant-tb-treatment-in-high-hiv-prevalence-settings-a-systematic-review-and-meta-analysis
#6
Kathryn Schnippel, Cynthia Firnhaber, Rebecca Berhanu, Liesl Page-Shipp, Edina Sinanovic
Objectives: To estimate the prevalence of adverse drug reactions or events (ADR) during drug-resistant TB (DR-TB) treatment in the context of settings with high HIV prevalence (at least 20% of patients). Methods: We conducted a systematic review and meta-analysis of articles in PubMed and Scopus. Pooled proportions of patients experiencing adverse events and relative risk with 95% CI were calculated. Results: The search yielded 24 studies, all observational cohorts...
April 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28417331/use-of-high-dose-oral-valacyclovir-during-an-intravenous-acyclovir-shortage-a-retrospective-analysis-of-tolerability-and-drug-shortage-management
#7
Milena M McLaughlin, Sarah H Sutton, Ashley O Jensen, John S Esterly
INTRODUCTION: In late 2011, a shortage of IV acyclovir led to the need to empirically substitute high-dose oral valacyclovir (HDVA) to conserve IV acyclovir for patients with confirmed herpes simplex virus (HSV) meningitis or encephalitis. This report describes the management of the most recent national IV acyclovir shortage by the Antimicrobial Stewardship Program (ASP) at Northwestern Memorial Hospital (NMH), Chicago, IL, USA, and the use of HDVA. Secondarily, we assessed the safety and tolerability of HDVA as an alternate to IV acyclovir during this shortage...
April 17, 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/28417320/patient-reporting-in-the-eu-analysis-of-eudravigilance-data
#8
Marin Banovac, Gianmario Candore, Jim Slattery, Francois Houÿez, David Haerry, Georgy Genov, Peter Arlett
INTRODUCTION: New pharmacovigilance legislation was adopted in the EU in 2010 and became operational in July 2012. The legislation placed an obligation on all national competent authorities (NCAs) and marketing authorisation holders (MAHs) to record and report cases of suspected adverse drug reactions (ADRs) received from patients. OBJECTIVES: This descriptive study aims to provide insight into patient reporting for the totality of the EU by querying the EudraVigilance (EV) database for the period of 3 years before the new pharmacovigilance legislation became operational and the 3 years after as well as comparing patient reports with those from healthcare professionals (HCPs) where feasible...
April 17, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28412864/cutaneous-allergic-drug-reactions-update-on-pathophysiology-diagnostic-procedures-and-differential-diagnostic
#9
Galina Balakirski, Hans F Merk
Important changes in the understanding and management of drug hypersensitivity reactions during the last years result from the increasing importance of biologics in medical practice, which differ in their spectrum of adverse drug reactions (ADRs) from the classical covalent drugs. With regard to covalent drugs, ampicillin and amoxicillin as well as clavulanic acid play an increasing role among ADRs to betalactam antibiotics. Fluoroquinolones are mainly the cause of anaphylactic and photosensitivity reactions...
April 17, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28412271/impact-of-a-new-distal-attachment-on-colonoscopy-performance-in-an-academic-screening-center
#10
Zacharias P Tsiamoulos, Ravi Misra, Rajaratanam Rameshshanker, Timothy R Elliott, Iosif Beintaris, Siwan Thomas-Gibson, Adam Haycock, Noriko Suzuki, Colin Rees, Brian P Saunders
BACKGROUND AND AIMS: Distal attachments placed on the colonoscope tip may positively affect performance by assisting insertion and polyp detection. The Endocuff-original appears to improve adenoma detection rate, but there are no data assessing the performance of the second generation Endocuff-vision. METHODS: A pilot service evaluation study (April-2013/September-2014) was conducted on patients with positive faecal occult blood tests within the National Bowel Cancer Programme during 3 consecutive periods: pre-cuff/no device used, during-cuff/device used and post-cuff/no device used...
April 12, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28408735/predicting-neurological-adverse-drug-reactions-based-on-biological-chemical-and-phenotypic-properties-of-drugs-using-machine-learning-models
#11
Salma Jamal, Sukriti Goyal, Asheesh Shanker, Abhinav Grover
Adverse drug reactions (ADRs) have become one of the primary reasons for the failure of drugs and a leading cause of deaths. Owing to the severe effects of ADRs, there is an urgent need for the generation of effective models which can accurately predict ADRs during early stages of drug development based on integration of various features of drugs. In the current study, we have focused on neurological ADRs and have used various properties of drugs that include biological properties (targets, transporters and enzymes), chemical properties (substructure fingerprints), phenotypic properties (side effects (SE) and therapeutic indications) and a combinations of the two and three levels of features...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28406746/immunogenicity-and-safety-of-a-cell-culture-derived-inactivated-quadrivalent-influenza-vaccine-nbp607-qiv-a-randomized-double-blind-multi-center-phase-iii-clinical-trial-in-adults-and-elderly-subjects
#12
Won Suk Choi, Ji Yun Noh, Joon Young Song, Hee Jin Cheong, Seong-Heon Wie, Jin Soo Lee, Jacob Lee, Shin-Woo Kim, Hye Won Jeong, Sook-In Jung, Yeon-Sook Kim, Heung Jeong Woo, Kyung Ho Kim, Hun Kim, Woo Joo Kim
BACKGROUND: The influenza B virus has two lineages; Yamagata and Victoria. The two lineages are antigenically distinct and it is difficult to expect cross-protection between the lineages. Actually, the mismatch between circulating influenza B viruses and vaccine strains has been occurred frequently. The cell-culture system for the production of influenza vaccine can contribute to improve vaccine strain selection and expand vaccine supplies. We investigated the immunogenicity and safety of cell culture-derived quadrivalent inactivated influenza vaccine (NBP607-QIV) in adults and elderly subjects...
April 13, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28405899/the-quality-of-clinical-information-in-adverse-drug-reaction-reports-by-patients-and-healthcare-professionals-a-retrospective-comparative-analysis
#13
Leàn Rolfes, Florence van Hunsel, Laura van der Linden, Katja Taxis, Eugène van Puijenbroek
INTRODUCTION: Clinical information is needed to assess the causal relationship between a drug and an adverse drug reaction (ADR) in a reliable way. Little is known about the level of relevant clinical information about the ADRs reported by patients. OBJECTIVE: The aim was to determine to what extent patients report relevant clinical information about an ADR compared with their healthcare professional. METHODS: A retrospective analysis of all ADR reports on the same case, i...
April 12, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28405849/hypomethylation-agent-decitabine-restores-drug-sensitivity-by-depressing-p-glycoprotein-activity-through-mapk-signaling-pathway
#14
Huihan Wang, Xiaobin Wang, Aijun Liao, Zhuogang Liu
The multidrug resistance (MDR) continues to be an obstacle in the treatment of both hematological and solid tumors. Hypomethylation agent, decitabine (5-Aza-dC), is an experimental agent in MDR therapy, while the mechanism is not very clear. In the present study, we demonstrated 5-Aza-dC may reverse MDR induced by P-glycoprotein (P-gp) coded by mdr1 gene in both hematologic K562/ADR cells and solid tumor MCF-7/ADR cells with time and dose-dependent manner. 5-Aza-dC significantly increased drug sensitivity in patients' leukemic cells which had higher expression of mdr1 gene...
April 12, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28405133/risperidone-induced-adverse-drug-reactions-and-role-of-drd2-141-c-ins-del-and-5htr2c-759-c-t-genetic-polymorphisms-in-patients-with-schizophrenia
#15
Charanraj Goud Alladi, Anbarasan Mohan, Deepak Gopal Shewade, Ravi Philip Rajkumar, Surendiran Adithan, Karthick Subramanian
OBJECTIVE: To determine the adverse drug reaction (ADR) profile of risperidone and their association with dopamine (DRD2 - 141 C Ins/Del/rs1799732) and serotonin receptor (5HTR2C -759 C>T/rs3813929) gene polymorphisms in patients with schizophrenia. MATERIALS AND METHODS: The study was conducted among 289 patients who were diagnosed with schizophrenia and were on treatment with risperidone (4-8 mg/day)-based therapy for a minimum of 4 weeks. Genotyping was carried by real-time quantitative polymerase chain reaction...
January 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/28404979/in-vivo-relation-between-plasma-concentration-of-sorafenib-and-its-safety-in-chinese-patients-with-metastatic-renal-cell-carcinoma-a-single-center-clinical-study
#16
Haixing Mai, Jun Huang, Yuanyuan Zhang, Nang Qu, Hengyan Qu, Guo-Hui Mei, Jiannan Liu, Xiaojie Xu, Lijun Chen
This single-center, observational study analyzed the association between plasma concentration of sorafenib and its safety and efficacy in Chinese patients with metastatic renal cell carcinoma (mRCC). Adult patients with RCC (n = 94), treated with sorafenib were enrolled between January 2014 and January 2015. Sorafenib plasma concentrations were measured by liquid chromatography-tandem mass spectrometry. Safety and efficacy variables were evaluated using National Cancer Institute-Common Toxicity Criteria for Adverse Events and Response Evaluation Criteria in Solid Tumors criteria...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28403588/daidzein-plus-isolase-associated-with-zinc-improves-clinical-symptoms-and-quality-of-life-in-patients-with-luts-due-to-benign-prostatic-hyperplasia-results-from-a-phase-i-ii-study
#17
Daniele Tiscione, Luca Gallelli, Irene Tamanini, Lorenzo Giuseppe Luciani, Paolo Verze, Alessandro Palmieri, Vincenzo Mirone, Riccardo Bartoletti, Gianni Malossini, Tommaso Cai
OBJECTIVE: In the last years there is a growing interest in nutraceutical substances that seems able to improve clinical symptoms in patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH). In this paper, we evaluated both efficacy and safety of a combination of daidzein with isolase and zinc in patients with LUTS due to BPH. MATERIALS AND METHODS: In a phase I-II study clinical trial we enrolled patients with clinical and instrumental diagnosis of LUTS associated to BPH that received a six-month treatment with a combination of daidzein with isolase and zinc (1 tablet/day)...
March 31, 2017: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28401449/silence-of-long-noncoding-rna-neat1-inhibits-malignant-biological-behaviors-and-chemotherapy-resistance-in-gastric-cancer
#18
Jiale Zhang, Bochao Zhao, Xiuxiu Chen, Zhenning Wang, Huimian Xu, Baojun Huang
Gastric cancer (GC) is the most common solid tumor in digestive system. Nuclear-enriched abundant transcript 1 (NEAT1) gene is a lncRNA, and reveal potential oncogene role in several malignant tumors. The aim of this study is to investigate the expression and clinical significance of Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) gene and its influence to malignant biologic behaviors and chemotherapy resistance to adriamycin in GC. This study found NEAT1 was up-regulated in GC tissues and cells, especially in in GC adriamycin-resistant cells...
April 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28400314/peg-pe-clay-composite-carriers-for-doxorubicin-effect-of-composite-structure-on-release-cell-interaction-and-cytotoxicity
#19
Hagay Kohay, Can Sarisozen, Rupa Sawant, Aditi Jhaveri, Vladimir P Torchilin, Yael G Mishael
A novel drug delivery system for doxorubicin (DOX), based on organic-inorganic composites was developed. DOX was incorporated in micelles (M-DOX) of polyethylene glycol-phosphatidylethanolamine (PEG-PE) which in turn were adsorbed by the clay, montmorillonite (MMT). The nano-structures of the PEG-PE/MMT composites of LOW and HIGH polymer loadings were characterized by XRD, TGA, FTIR, size (DLS) and zeta measurements. These measurements suggest that for the LOW composite a single layer of polymer intercalates in the clay platelets and the polymer only partially covers the external surface, while for the HIGH composite two layers of polymer intercalate and a bilayer may form on the external surface...
April 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28399611/adenoma-detection-with-blue-water-infusion-colonoscopy-a-randomized-trial
#20
Adriane Lesne, Olivier Rouquette, Sandrine Touzet, Fabien Petit-Laurent, Gwenaelle Tourlonias, Audrey Pasquion, Jérôme Rivory, Guillermo Aguero Garcete, Julien Scanzi, Sylvaine Chalumeau, Christine Chambon-Augoyard, Driffa Moussata, Florence Leger-Nguyen, Stéphane Degeorges, Marion Chauvenet, Thierry Fontanges, Sandrine Baubet, Philippe Brulet, Claire Billioud, Elsa Thimonier, Karine Stroeymeyt-Martin, Benjamin Hamel, Emmanuelle Graillot, Claire Cruiziat, Olivia Scalone, Marc O'Brien, Denis Péré-Vergé, Jean-Christophe Souquet, Jean-Marc Phelip, Laurent Poincloux, Stéphanie Poupon-Bourdy, Angélique Denis, Laurent Magaud, Thierry Ponchon, Mathieu Pioche
Background and aims Colonoscopy is currently the reference method to detect colorectal neoplasia, yet some adenomas remain undetected. The water infusion technique and dying with indigo carmine has shown interesting results for reducing this miss rate. The aim of this study was to compare the adenoma detection rate (adenoma and adenocarcinoma; ADR) and the mean number of adenomas per patient (MAP) for blue-water infusion colonoscopy (BWIC) versus standard colonoscopy. Methods We performed a multicenter, randomized controlled trial in eight units, including patients with a validated indication for colonoscopy (symptoms, familial or personal history, fecal occult blood test positive)...
April 11, 2017: Endoscopy
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