keyword
MENU ▼
Read by QxMD icon Read
search

MTX

keyword
https://www.readbyqxmd.com/read/29144726/physalis-mottle-virus-like-particles-as-nanocarriers-for-imaging-reagents-and-drugs
#1
Hema Masarapu, Bindi K Patel, Paul L Chariou, He Hu, Neetu M Gulati, Bradley L Carpenter, Reza A Ghiladi, Sourabh Shukla, Nicole F Steinmetz
Platform technologies based on plant virus nanoparticles (VNPs) and virus-like particles (VLPs) are attracting the attention of researchers and clinicians because the particles are biocompatible, biodegradable, noninfectious in mammals, and can readily be chemically and genetically engineered to carry imaging agents and drugs. When the Physalis mottle virus (PhMV) coat protein is expressed in Escherichia coli, the resulting VLPs are nearly identical to the viruses formed in vivo. Here, we isolated PhMV-derived VLPs from ClearColi cells and carried out external and internal surface modification with fluorophores using reactive lysine-N-hydroxysuccinimide ester and cysteine-maleimide chemistries, respectively...
November 16, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29142036/effect-of-glucocorticoids-on-the-clinical-and-radiographic-efficacy-of-tofacitinib-in-patients-with-rheumatoid-arthritis-a-posthoc-analysis-of-data-from-6-phase-iii-studies
#2
Christina Charles-Schoeman, Désirée van der Heijde, Gerd R Burmester, Peter Nash, Cristiano A F Zerbini, Carol A Connell, Haiyun Fan, Kenneth Kwok, Eustratios Bananis, Roy Fleischmann
OBJECTIVE: Tofacitinib has been investigated for the treatment of rheumatoid arthritis (RA) in phase III studies in which concomitant glucocorticoids (GC) were allowed. We analyzed the effect of GC use on efficacy outcomes in patients with RA receiving tofacitinib and/or methotrexate (MTX) or conventional synthetic disease-modifying antirheumatic drugs (csDMARD) in these studies. METHODS: Our posthoc analysis included data from 6 phase III studies (NCT01039688; NCT00814307; NCT00847613; NCT00853385; NCT00856544; NCT00960440)...
November 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29142030/plasma-microrna-profiles-in-patients-with-early-rheumatoid-arthritis-responding-to-adalimumab-plus-methotrexate-vs-methotrexate-alone-a-placebo-controlled-clinical-trial
#3
Jacob Sode, Sophine B Krintel, Anting Liu Carlsen, Merete L Hetland, Julia S Johansen, Kim Hørslev-Petersen, Kristian Stengaard-Pedersen, Torkell Ellingsen, Mark Burton, Peter Junker, Mikkel Østergaard, Niels H H Heegaard
OBJECTIVE: The aim was to identify plasma (i.e., cell-free) microRNA (miRNA) predicting antitumor necrosis and/or methotrexate (MTX) treatment response in patients enrolled in an investigator-initiated, prospective, double-blinded, placebo-controlled trial (The OPERA study, NCT00660647). METHODS: We included 180 disease-modifying antirheumatic drug-naive patients with early rheumatoid arthritis (RA) randomized to adalimumab (ADA; n = 89) or placebo (n = 91) in combination with MTX...
November 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29141688/chinese-registry-of-rheumatoid-arthritis-credit-ii-%C3%A2-prevalence-and-risk-factors-of-major-comorbidities-in-chinese-patients-with-rheumatoid-arthritis
#4
Shangyi Jin, Mengtao Li, Yongfei Fang, Qin Li, Ju Liu, Xinwang Duan, Yi Liu, Rui Wu, Xiaofei Shi, Yongfu Wang, Zhenyu Jiang, Yanhong Wang, Chen Yu, Qian Wang, Xinping Tian, Yan Zhao, Xiaofeng Zeng
BACKGROUND: Rheumatoid arthritis patients are at higher risk of developing comorbidities. The main objective of this study was to evaluate the prevalence of major comorbidities in Chinese rheumatoid arthritis patients. We also aimed to identify factors associated with these comorbidities. METHODS: Baseline demographic, clinical characteristics and comorbidity data from RA patients enrolled in the Chinese Registry of rhEumatoiD arthrITis (CREDIT) from Nov 2016 to August 2017 were presented and compared with those from five other registries across the world...
November 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29138257/clinical-juvenile-arthritis-disease-activity-score-proves-to-be-a-useful-tool-in-treat-to-target-therapy-in-juvenile-idiopathic-arthritis
#5
Joost F Swart, E H Pieter van Dijkhuizen, Nico M Wulffraat, Sytze de Roock
OBJECTIVES: To assess if the Juvenile Arthritis Disease Activity Score (JADAS71) could be used to correctly identify patients with juvenile idiopathic arthritis (JIA) in need of antitumour necrosis factor therapy (anti-TNF) therapy 3 and 6 months after start of methotrexate (MTX). METHODS: Monocentric retrospective cohort study from 2011 to 2015 analysing all patients with oligoarticular JIA (OJIA) (n=39) and polyarticular course JIA (PJIA) (n=74) first starting MTX...
November 14, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29137976/proteomic-analysis-of-cho-cell-lines-producing-high-and-low-quantities-of-a-recombinant-antibody-before-and-after-selection-with-methotrexate
#6
Ruth Hausmann, Ivana Chudobová, Holger Spiegel, Stefan Schillberg
High levels of recombinant protein production in Chinese hamster ovary (CHO) cells can be achieved by amplification of transgenes using the dihydrofolate reductase/methotrexate (DHFR/MTX) system. With the aim to identify predictive markers enabling the preselection of suitable high producing clones we investigated the impact of MTX-based gene amplification on two CHO cells lines producing different levels of a human monoclonal antibody by carrying out a comparative proteome analysis. The difference in antibody yield between the high and low producer was 15-fold before and 245-fold after MTX selection...
November 11, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/29137709/simultaneous-detection-of-folic-acid-and-methotrexate-by-an-optical-sensor-based-on-molecularly-imprinted-polymers-on-dual-color-cdte-quantum-dots
#7
Ali A Ensafi, Parisa Nasr-Esfahani, B Rezaei
In this work, molecularly imprinted polymers (MIPs) were used on the surface of cadmium telluride quantum dots (CdTe QDs) for the simultaneous determination of folic acid (FA) and methotrexate (MTX). For this purpose, two different sizes of CdTe QDs with emission peaks in the yellow (QDY) and orange (QDO) spectral regions were initially synthesized and capped with MIPs. FA and MTX were used as templates for the synthesis of the two composites and designated as QDY-MIPs and QDO-MIPs, respectively. Fourier transform infrared spectroscopy, transmission electron microscopy, and fluorescence spectroscopy were employed to characterize the composites...
December 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29133618/therapeutic-impact-of-nanoparticle-therapy-targeting-tumor-associate-macrophages
#8
Courtney Penn, Kun Yang, Hong Zong, Jae-Young Lim, Alex Cole, Dongli Yang, James Baker, Sascha N Goonewardena, Ronald J Buckanovich
Antiangiogenic therapies, despite initial encouragement, have demonstrated a limited benefit in ovarian cancer. Laboratory studies suggest anti-angiogenic therapy induced hypoxia can induce tumor "stemness' as resistance to antiangiogenic therapy develops and limits the therapeutic benefit. Resistance to antiangiogenic therapy and an induction of tumor stemness may be mediated by proangiogenic tumor associated macrophages (TAMs). As such TAMs have been proposed as a therapeutic target. We demonstrate here that ovarian TAMs express high levels of the folate receptor-2 (FOLR2) and can be selectively targeted using G5-dendrimer nanoparticles using methotrexate as both a ligand and a toxin...
November 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29131265/metformin-reduces-satb2-mediated-osteosarcoma-stem-cell-like-phenotype-and-tumor-growth-via-inhibition-of-n-cadherin-nf-kb-signaling
#9
H Y Xu, W Fang, Z W Huang, J C Lu, Y Q Wang, Q L Tang, G H Song, Y Kang, X J Zhu, C Y Zou, H L Yang, J N Shen, J Wang
OBJECTIVE: To investigate the role of SATB2 in stem cell-like properties of osteosarcoma and identify new strategies to eliminate cancer stem cells of osteosarcoma. MATERIALS AND METHODS: Osteosarcoma cancer stem cells were derived by sarcosphere generation or chemo drug enrichment. SATB2 and pluripotency-associated gene expression in osteosarcoma CSCs were analyzed using qRT-PCR and Western blotting. The sphere formation assay, cell counting kit-8 assay and anti-chemotherapy proteins were used to measure the effects of altered SATB2, N-cadherin expression or metformin treatment in CSCs...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29130895/ceramic-core-with-polymer-corona-hybrid-nanocarrier-for-the-treatment-of-osteosarcoma-with-co-delivery-of-protein-and-anti-cancer-drug
#10
Ram Prasad Sekar, T S Sampath Kumar, Jayakrishnan Athipettah
For the treatment of metastatic bone cancer, local delivery of therapeutic agents is preferred compared to systemic administration. Delivery of an anti-cancer drug and a protein that helps in bone regeneration simultaneously is a challenging approach. In this study, a nanoparticulate carrier which delivers a protein and an anti-cancer drug is reported. Bovine serum albumin (BSA) as a model protein was loaded into hydroxyapatite (HA) nanoparticles (NPs) and methotrexate (MTX) conjugated to poly(vinyl alcohol) was coated onto BSA-loaded HA NPs...
November 13, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29122712/development-of-plga-nanoparticles-loaded-with-clofazimine-for-oral-delivery-assessment-of-formulation-variables-and-intestinal-permeability
#11
Luíse L Chaves, Sofia A Costa Lima, Alexandre C C Vieira, Luísa Barreiros, Marcela A Segundo, Domingos Ferreira, Bruno Sarmento, Salette Reis
The use of polymeric nanoparticles as delivery systems is a promising tool to overcome drawbacks related to low aqueous solubility of drugs, which limit their in vivo bioavailability. The aim of this study was to decrease clofazimine (CLZ) toxicity using experimental design to formulate CLZ loaded in PLGA nanoparticles (NPs-CLZ) through a Plackett-Burman design (PBD). A screening PBD was constructed with twelve formulations involving six variables among process and formulation parameters and the selected responses were particle size, polydispersity index (PDI), association efficiency (AE) and drug loading (DL)...
November 6, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29120974/plasma-7-hydroxymethotrexate-levels-versus-methotrexate-to-predict-delayed-elimination-in-children-receiving-high-dose-methotrexate
#12
Nicolas Fabresse, Bénédicte Devictor, Christel Pissier, Hervé Chambost, Bruno Lacarelle, Gérard Michel, Caroline Solas
BACKGROUND: The aim of this study was to investigate the correlation between 7-hydroxymethotrexate (7-OHMTX) and creatinine and to evaluate the predictive value of 7-OHMTX levels on delayed elimination at 24 and 48 hours. In addition, differences in methotrexate (MTX), 7-OHMTX levels, and MTX metabolism using the ratio MTX/7-OHMTX were determined according to age. METHODS: The authors included a total of 106 cycles, corresponding to 33 patients (mean age: 9.8 years, range: 2-18 years) suffering from acute lymphoblastic leukemia, non-Hodgkin lymphoma and osteosarcoma and receiving high-dose MTX (HD-MTX)...
November 8, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29116543/remission-assessment-of-rheumatoid-arthritis-in-daily-practice-in-china-a-cross-sectional-observational-study
#13
Huaqun Zhu, Ru Li, Zhanyun Da, Liqi Bi, Xiangpei Li, Yang Li, Chongyang Liu, Fengxiao Zhang, Zhijun Li, Xiangyuan Liu, Zhiyi Zhang, Lingyun Sun, Youlian Wang, Wei Zhang, Quan Jiang, Jinwei Chen, Qingping Chen, Zhenbin Li, Lijun Wu, Wencheng Qi, Jianhua Xu, Xiangjun Cui, Xiaofei Wang, Long Li, Xiaomei Leng, Guochun Wang, Dongbao Zhao, Lindi Jiang, Dongyi He, Xiaomin Liu, Ling Li, Yongfei Fang, Cibo Huang, Huaxiang Wu, Shaoxian Hu, Qin Li, Hui Song, Weiguo Xiao, Lu Gong, Liaojia Zhang, Xiaofeng Li, Zhanguo Li, Yin Su
The objective of this study is to evaluate the remission rate and describe the current use of medication in a large cohort of rheumatoid arthritis (RA) patients under routine clinical care in China. RA patients were recruited from 40 large teaching hospitals nationwide in China. Data regarding RA disease activity, medication treatment, and adverse events were recorded using a standardized clinical data questionnaire. RA remission was evaluated by the 28 Joint Disease Activity Score DAS28-ESR Clinical Disease Activity Index (CDAI), Simplified Disease Activity Index (SDAI), and American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) remission criteria...
November 7, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29114374/prevention-of-chemotherapy-induced-nephrotoxicity-in-children-with-cancer
#14
REVIEW
Fatemeh Ghane Sharbaf, Hamid Farhangi, Farahnak Assadi
Children with cancer treated with cytotoxic drugs are frequently at risk of developing renal dysfunction. The cytotoxic drugs that are widely used for cancer treatment in children are cisplatin (CPL), ifosfamide (IFO), carboplatin, and methotrexate (MTX). Mechanisms of anticancer drug-induced renal disorders are different and include acute kidney injury (AKI), tubulointerstitial disease, vascular damage, hemolytic uremic syndrome (HUS), and intrarenal obstruction. CPL nephrotoxicity is dose-related and is often demonstrated with hypomagnesemia, hypokalemia, and impaired renal function with rising serum creatinine and blood urea nitrogen levels...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29113115/ferulaldehyde-improves-the-effect-of-methotrexate-in-experimental-arthritis
#15
Lukáš Slovák, Karol Švík, Danica Mihalová, Jaroslav Tóth, Szilvia Czigle, Ľudmila Pašková, František Bilka, Katarína Bauerová
Methotrexate (MTX) is still the gold standard for treatment of rheumatoid arthritis (RA). The therapeutic efficacy of low-dose of MTX can be increased by its combination with a natural substance, ferulaldehyde (FRA). The aim of this study was to evaluate the effect FRA and MTX administered alone or in combination in adjuvant arthritis. The disease was induced to Lewis male rats by intradermal injection, which contains a suspension of heat-inactivated Mycobacterium butyricum in incomplete Freund's adjuvant. The experiment of 28 days included: healthy animals, arthritic animals, arthritic animals with administration of FRA at the oral daily dose of 15 mg/kg, arthritic animals with administration of MTX at the oral dose of 0...
November 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29111035/effect-of-in-situ-modification-of-bacterial-cellulose-with-carboxymethylcellulose-on-its-nano-microstructure-and-methotrexate-release-properties
#16
Marina de Lima Fontes, Andréia Bagliotti Meneguin, Agnieszka Tercjak, Junkal Gutierrez, Beatriz Stringhetti Ferreira Cury, Aline Martins Dos Santos, Sidney J L Ribeiro, Hernane S Barud
Bacterial cellulose/carboxymethylcelullose (BC/CMC) biocomposites with different DS-CMC (DS from 0.7 to 1.2) were developed in order to evaluate their impact as a drug delivery system. Biocomposites were loaded with methotrexate (MTX) as an alternative for the topical treatment of psoriasis. Scanning electron microscopy and atomic force microscopy showed that the CMC coated the cellulose nanofibers, leading to the decrease of the elastic modulus as the DS of CMC increased. BC/CMC0.9 exhibited the lower liquid uptake (up to 11 times lower), suggesting that the more linear structure of the intermediate substitute CMC grade (0...
January 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29107213/current-and-future-treatment-options-for-pemphigus-is-it-time-to-move-towards-more-effective-treatments
#17
REVIEW
Soheil Tavakolpour
Systemic administration of corticosteroid (CS) remains the standard gold treatment for pemphigus. However, because of several long-term adverse effects, steroid-sparing agents are usually prescribed in combination with CSs. Despite the high number of available studies, the choice of best drugs to treat pemphigus remains controversial. Therapeutic approaches for pemphigus can be divided into traditional treatment and emerging ones. Personalized medicine, which aims to increase the efficacy as well as reduce adverse effects of treatments, could be considered as the future option...
December 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29100299/coupling-to-a-cancer-selective-heparan-sulfate-targeted-branched-peptide-can-by-pass-breast-cancer-cell-resistance-to-methotrexate
#18
Lorenzo Depau, Jlenia Brunetti, Chiara Falciani, Silvia Scali, Giulia Riolo, Elisabetta Mandarini, Alessandro Pini, Luisa Bracci
Cancer-selective tetra-branched peptides, named NT4, can be coupled to different functional units for cancer cell imaging or therapy. NT4 peptides specifically bind to lipoprotein receptor-related proteins (LRP) receptors and to heparan sulfate chains on membrane proteoglycans and can be efficiently internalized by cancer cells expressing these membrane targets. Since binding and internalization of NT4 peptides is mediated by specific NT4 receptors on cancer cell membranes and this may allow drug resistance produced by drug membrane transporters to be by-passed, we tested the ability of drug-armed NT4 to by-pass drug resistance in cancer cell lines...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29098882/ph-and-thermo-sensitive-mtx-loaded-magnetic-nanocomposites-synthesis-characterization-and-in-vitro-studies-on-a549-lung-cancer-cell-and-mr-imaging
#19
Masoud Farshbaf, Roya Salehi, Nasim Annabi, Rovshan Khalilov, Abolfazl Akbarzadeh, Soodabeh Davaran
In current study we proposed a facile method for fabrication of multifunctional pH- and thermo sensitive magnetic nanocamposites (MNCs) as a theranostic agent employing in targeted drug delivery and magnetic resonance imaging (MRI). To this end, we decorated Fe3O4 magnetic nanoparticles (MNPs) with N,N-dimethylaminoethyl methacrylate (DMAEMA) and N-isopropylacrylamide (NIPAAm), best known for their pH- and thermo sensitive properties, respectively. We also conjugated mesoporous silica nanoparticles (MSNs) to polymer matrix acting as drug container to enhance the drug encapsulation efficacy...
November 3, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29097838/effects-of-methotrexate-exposure-on-medaka-oryzias-latipes-testes
#20
Ayano Hirako, Yuki Takeoka, Satoshi Furukawa, Akihiko Sugiyama
For the purpose of clarifying the histopathological effects of methotrexate (MTX) on medaka testes, wild-type and homogenic p53-deficient male medaka at 4 to 6 months post-hatching were exposed to 0.25 mg/ml of MTX for 96 h with histopathological examination of testes at 24, 48, 72 and 96 h. At 72 and 96 h after the start of MTX exposure, numerous apoptotic cells were observed in the spermatogonia and spermatocytes, and the pyknotic cell rate and the TUNEL-positive and cleaved caspase-3-positive rates in the spermatogonia and spermatocytes of MTX-treated wild type medaka were higher compared with those in the control wild-type medaka...
October 2017: Journal of Toxicologic Pathology
keyword
keyword
81994
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"