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https://www.readbyqxmd.com/read/28944899/smilax-glabra-rhizoma-affects-the-pharmacokinetics-and-tissue-distribution-of-methotrexate-by-increasing-the-p%C3%A2-glycoprotein-mrna-expression-in-rats-after-oral-administration
#1
Yang Li, Shigui Deng, Ya Ζhao, Lijuan Liu, Ruizhi Zhao
Methotrexate (MTX) is a widely used immunosuppressant and anticancer agent with high toxicity. Smilax glabra Rhizoma (SGR) has the effect of detoxification and immunoregulation, and has been used as both food and folk medicine in many countries. Co‑administration of MTX and SGR occurs in several diseases. However, whether they work synergistically or are incompatible remains unknown. In the present study, MTX was administrated to rats alone or combined with SGR. Blood and tissue samples were collected at designated times...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944688/treatment-of-lichen-planopilaris-methotrexate-or-cyclosporine-a-therapy
#2
Emel Bulbul Baskan, Serkan Yazici
BACKGROUND: Because of irreversible outcome of the lichen planopilaris(LPP), systemic therapy should be used in early inflammatory stages of the disease, without allowing the irreversible scar formation and permanent hair loss. OBJECTIVE: We assessed the efficacy and safety of methotrexate(MTX) and cyclosporine A (CsA) in the management of recalcitrant, extensive LPP and compared their efficacy and safety profile. METHODS: We retrospectively analyzed the 16 LPP cases treated with either CsA or MTX therapy...
September 25, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28944308/titanium-dioxide-nanoparticle-ingestion-alters-nutrient-absorption-in-an-in-vitro-model-of-the-small-intestine
#3
Zhongyuan Guo, Nicole J Martucci, Fabiola Moreno-Olivas, Elad Tako, Gretchen J Mahler
Ingestion of titanium dioxide (TiO2) nanoparticles from products such as agricultural chemicals, processed food, and nutritional supplements is nearly unavoidable. The gastrointestinal tract serves as a critical interface between the body and the external environment, and is the site of essential nutrient absorption. The goal of this study was to examine the effects of ingesting the 30 nm TiO2 nanoparticles with an in vitro cell culture model of the small intestinal epithelium, and to determine how acute or chronic exposure to nano-TiO2 influences intestinal barrier function, reactive oxygen species generation, proinflammatory signaling, nutrient absorption (iron, zinc, fatty acids), and brush border membrane enzyme function (intestinal alkaline phosphatase)...
January 2017: NanoImpact
https://www.readbyqxmd.com/read/28941977/trends-in-treatment-patterns-and-clinical-outcomes-in-young-women-diagnosed-with-ductal-carcinoma-in-situ
#4
Hannah Lui Park, Jenny Chang, Gagandeep Lal, Krustina Lal, Argyrios Ziogas, Hoda Anton-Culver
BACKGROUND: Although it is known that the risk of a second breast cancer event among young women diagnosed with ductal carcinoma in situ (DCIS) is higher than in older women, the effect of current treatment options on long-term outcomes in this subgroup of women remains poorly defined. We aimed to evaluate national treatment trends and determine their effect on second breast cancer risk and overall survival among young women diagnosed with DCIS. MATERIALS AND METHODS: Surveillance, Epidemiology, and End Results data from 1998 to 2011 were used to analyze 3648 DCIS patients younger than age 40 years...
August 10, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28940156/contribution-of-lysinibacillus-sphaericus-hemolysin-and-chitin-binding-protein-in-entomopathogenic-activity-against-insecticide-resistant-aedes-aegypti
#5
Paula Andrea Rojas-Pinzón, Jenny Dussán
Given its toxicity against culicid larvae, Lysinibacillus sphaericus is used for the biological control of mosquitoes such as Culex sp. and Anopheles sp. The toxicity factors currently reported for L. sphaericus include the Binary toxin, Mtx toxins, and the S-layer. However, Aedes aegypti is refractory to the Binary toxin, the most toxic larvicidal protein of L. sphaericus. Until now, there are no evidences of the hemolytic and chitinolytic capacity of L. sphaericus. Herein, the expression of the hemolysin D (hlyD) and the chitin-binding protein genes of L...
September 22, 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28937522/ambulatory-high-dose-methotrexate-administration-in-pediatric-osteosarcoma-patients-at-a-single-institution-in-argentina
#6
Jose A Villegas Rubio, Walter Cacciavillano, Adriana Rose, Pedro Zubizarreta, Marcelo Scopinaro
BACKGROUND: The purpose of this study was to evaluate the feasibility and safety of ambulatory high-dose methotrexate (HDMTX) administration with oral hydration, alkalinization, and leucovorin rescue. HDMTX (12 g/m) was given intravenously over 4 hours after urine alkalinization. Families and patients were instructed to continue ambulatory oral hydration and alkalinization to monitor urine pH and to adjust bicarbonate according to our institution's treatment algorithm. Clinical status and MTX levels were controlled every 24 hours, and oral leucovorin dose was adjusted accordingly...
October 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28933275/a-case-of-inappropriate-self-medication-compounded-with-prescribing-vis-%C3%A3-vis-dispensing-errors-and-the-hazardous-consequence
#7
Sukalyan Saha Roy, Anupam Roy, Ranjita Santra Dhali, Chiranjib Bagchi, Gautam Banerjee, Santanu K Tripathi
INTRODUCTION Dispensing error, a type of medication error, is not infrequent but seldom reported. Self-medication behavior appears to be a commonplace. And when it is ignorant it may prove dangerous. We report here a case of acute vesico-bullous eruptions from methotrexate in a patient of psoriasis who indulged in self-medication and was wrongfully dispensed higher doses of methotrexate. CASE DESCRIPTION A 50-year-old gentleman presented to the dermatology OPD with erythematous, vesico-bullar lesions spread all over the body including both limbs and scalp, with oral mucosal involvement without any history of fever...
September 19, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28932292/methotrexate-blood-pressure-and-markers-of-arterial-function-in-patients-with-rheumatoid-arthritis-a-repeated-cross-sectional-study
#8
Arduino A Mangoni, Leena R Baghdadi, E Michael Shanahan, Michael D Wiese, Sara Tommasi, David Elliot, Richard J Woodman
BACKGROUND: Methotrexate (MTX) treatment in rheumatoid arthritis (RA) has been associated with lower cardiovascular risk compared to other disease-modifying antirheumatic drugs (DMARDs). We sought to identify whether the MTX-associated cardioprotection involves changes in blood pressure (BP) and/or arterial function. METHODS: Clinic and 24-hour peripheral and central systolic and diastolic BP (SBP and DBP), augmentation index (AIx), pulse wave velocity (PWV) and plasma asymmetric dimethylarginine (ADMA) were assessed in RA patients on stable treatment with either MTX ± other DMARDs (MTX group, n = 56, age 61 ± 13 years, 70% females) or other DMARDs (non-MTX group, n = 30, age 63 ± 12 years, 76% females)...
September 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28932117/multifunctional-folate-receptor-targeting-and-ph-responsive-nanocarriers-loaded-with-methotrexate-for-treatment-of-rheumatoid-arthritis
#9
Jinlong Zhao, Menghui Zhao, Changhui Yu, Xueyan Zhang, Jiaxin Liu, Xinwei Cheng, Robert J Lee, Fengying Sun, Lesheng Teng, Youxin Li
Rheumatoid arthritis (RA) is an autoimmune disease characterized by progressive cartilage and bone destruction. Activated macrophages that overexpress folic acid (FA) receptors play an important role in RA, due to their abundance in inflamed synovial membrane and joints. In an effort to deliver drugs to the inflamed tissues, multifunctional FA receptor-targeting and pH-responsive nanocarriers were developed. They were composed of lipids, polyethylene glycol (PEG)-poly(lactic-co-glycolic acid) (PLGA) forming a hydrophilic shell, FA around the hydrophilic shell as a targeting ligand, and poly(cyclohexane-1,4-diylacetone dimethylene ketal) (PCADK) and PLGA as a hydrophobic core...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28928387/bi-directional-effects-of-vitamin-b12-and-methotrexate-on-daphnia-magna-fitness-and-genomic-methylation
#10
Fitore Kusari, Alan M O'Doherty, Nikolas J Hodges, Marcin W Wojewodzic
Here we interrogated, using three separate but complementary experimental approaches, the impact of vitamin B12 availability and methotrexate exposure on Daphnia magna, which we hypothesised should have an opposite effect on One carbon metabolism (OCM). OCM is a vital biological process supporting a variety of physiological processes, including DNA methylation. Contrary to mammalian models, this process remains largely unexplored in invertebrates. The purpose of this study was to elucidate the impact of OCM short-term alteration on the fitness and epigenome of the keystone species, Daphnia...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923098/patient-reported-outcomes-of-baricitinib-in-patients-with-rheumatoid-arthritis-and-no-or-limited-prior-disease-modifying-antirheumatic-drug-treatment
#11
Michael Schiff, Tsutomu Takeuchi, Roy Fleischmann, Carol L Gaich, Amy M DeLozier, Douglas Schlichting, Wen-Ling Kuo, Ji-Eon Won, Tara Carmack, Terence Rooney, Patrick Durez, Saeed Shaikh, Rodolfo Pardo Hidalgo, Ronald van Vollenhoven, Cristiano A F Zerbini
BACKGROUND: This study evaluates patient-reported outcomes (PROs) in a double-blind, phase III study of baricitinib as monotherapy or combined with methotrexate (MTX) in patients with active rheumatoid arthritis (RA) with no or minimal prior conventional synthetic disease-modifying antirheumatic drugs (DMARDs) and naïve to biological DMARDs. METHODS: Patients were randomized 4:3:4 to MTX administered once weekly (N = 210), baricitinib monotherapy (4 mg once daily (QD), N = 159), or combination of baricitinib (4 mg QD) and MTX (baricitinib + MTX, N = 215)...
September 18, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28922991/tissue-engineering-laboratory-models-of-the-small-intestine
#12
Rasha Hatem Dosh, Nicola Jordan-Mahy, Christopher Sammon, Christine Le Maitre
In recent years, three-dimensional (3D) cell culture models of the small intestine have gained much attention. These models support cell proliferation, migration, and differentiation, and encourage tissue organization which is not possible in two-dimensional (2D) culture systems. Furthermore, the use of a wide variety of cell culture scaffolds and support substrates have revealed considerable differences in cell behavior and tissue organization. These systems have been used in combination with intestinal stem cells, organoid units or human colonic adenocarcinoma cell lines such as Caco-2 and HT29-MTX to generate a number of in vitro and in vivo models of the intestine...
September 19, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28920426/methotrexate-camptothecin-prodrug-nanoassemblies-as-a-versatile-nanoplatform-for-biomodal-imaging-guided-self-active-targeted-and-synergistic-chemotherapy
#13
Yang Li, Jinyan Lin, Jinyuan Ma, Liang Song, Huirong Lin, Bowen Tang, Dengyue Chen, Guanghao Su, Shefang Ye, Xuan Zhu, Fang-Hong Luo, Zhenqing Hou
"All-in-one" carrier-free-based nano-multi-drug self-delivery system could combine triple advantages of small molecules, nanoscale characteristics, and synergistic combination therapy together. Researches have showed that dual-acting small molecular methotrexate (MTX) could target and kill the folate receptors-overexpressing cancer cells. Inspired by this mechanism, a novel collaborative "early-phase tumor-selective targeting and late-phase synergistic anticancer" approach was developed for the self-assembly of chemotherapeutic drug-drug conjugate, which showed various advantages of more simplicity, efficiency, and flexibility over the conventional approach that was only based on single or combination cancer chemotherapy...
September 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28919284/mmp-8-and-timp-1-are-associated-to-periodontal-inflammation-in-patients-with-rheumatoid-arthritis-under-methotrexate-immunosuppression-first-results-of-a-cross-sectional-study
#14
G Schmalz, I Davarpanah, J Jäger, R F Mausberg, B Krohn-Grimberghe, J Schmidt, R Haak, U Sack, Dirk Ziebolz
BACKGROUND: Aim of this cross-sectional study was the investigation of associations between different rheumatoid arthritis (RA)-related blood parameters and periodontal condition as well as selected periodontal pathogenic bacteria in RA patients under methotrexate (MTX) immunosuppression. METHODS: Periodontal probing depth (PPD), bleeding on probing (BOP) and clinical attachment loss (CAL) were assessed. Periodontal condition was classified into: no/mild and moderate or severe periodontitis (P)...
September 4, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28917574/-apparent-worsening-of-psoriasis-lesions-revealing-methotrexate-overdosage
#15
R Haber, B Baroudjian, M Battistella, M Bagot, A Petit
BACKGROUND: Methotrexate (MTX) is an antimetabolite drug used in the treatment of cancers and autoimmune diseases and frequently in dermatology for cutaneous and/or arthritic psoriasis. Toxicities due to MTX overdosage are mainly cutaneous, hepatic and hematologic. Herein, we report a case of MTX overdosage presenting as an erosive and an inflammatory flare of preexisting psoriatic plaques and with new palmar lesions. PATIENTS AND METHODS: A 51-year-old male with a 6-year history of plaque psoriasis resistant to topical corticosteroids was started for the first time on MTX 20mg weekly...
September 13, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28916873/effects-of-methotrexate-on-the-quality-of-oocyte-maturation-in-vitro
#16
N Tian, J Yu, Sh Zhang, W Y Ma, T Wang, Y M Wang
Methotrexate (MTX), an antifolate drug, is widely used for clinical treatment of malignancies and ectopic pregnancy. Many studies have documented that MTX has strong side-effects on rapidly dividing somatic cells. However, its side-effects on female reproductive cells have not been widely reported. Combined with in vitro culture, two-photon fluorescence imaging and three-dimensional reconstruction, this study analyzed the effects of MTX on oocyte maturation time, chromosome arrangement, karyotype, spindle morphology, and the localization of microtubule organizing centers (MTOCs)...
September 15, 2017: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/28916036/determination-of-methotrexate-in-spiked-human-blood-serum-using-multi-frequency-electrochemical-immittance-spectroscopy-and-multivariate-data-analysis
#17
Sereilakhena Phal, Britta Lindholm-Sethson, Paul Geladi, Andrey Shchukarev, Solomon Tesfalidet
This article describes an attempt to develop a sensor based on multi-frequency immittance spectroscopy for the determination of methotrexate (MTX) in blood serum using gold electrodes modified with antibodies. The attachment of antibodies was monitored with electrochemical immittance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS). The EIS measurements of MTX resulted in a data matrix of size 39 × 55. The data were analysed using multivariate data analysis and showed a concentration dependence and time dependence that could be separated...
September 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915005/a-novel-type-of-aqueous-dispersible-ultrathin-layered-double-hydroxide-nanosheets-for-in-vivo-bioimaging-and-drug-delivery
#18
Li Yan, Mengjiao Zhou, Xiujuan Zhang, Longbiao Huang, Wei Chen, Vellaisamy A L Roy, WenJun Zhang, Xianfeng Chen
Layered double hydroxide (LDH) nanoparticles have been widely used for various biomedical applications. However, because of the difficulty of surface functionalization of LDH nanoparticles, the systemic administration of these nanomaterials for in vivo therapy remains a bottleneck. In this work, we develop a novel type of aqueous dispersible two dimensional ultrathin LDH nanosheets with a size of about 50 nm and a thickness of about 1.4 to 4 nm. We are able to covalently attach positively charged Rhodamine B fluorescent molecules to the nanosheets and the nanohybrid retains strong fluorescence in liquid and even dry powder form...
September 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28914260/high-dose-methotrexate-therapy-significantly-improved-survival-of-adult-acute-lymphoblastic-leukemia-a-phase-iii-study-by-jalsg
#19
T Sakura, F Hayakawa, I Sugiura, T Murayama, K Imai, N Usui, S Fujisawa, T Yamauchi, T Yujiri, K Kakihana, Y Ito, H Kanamori, Y Ueda, Y Miyata, M Kurokawa, N Asou, K Ohnishi, S Ohtake, Y Kobayashi, K Matsuo, H Kiyoi, Y Miyazaki, T Naoe
High-dose methotrexate (Hd-MTX) therapy has recently been applied to the treatment of adult acute lymphoblastic leukemia (ALL) based on pediatric protocols; however, its effectiveness for adult ALL has not yet been confirmed in a rigorous manner. We herein conducted a randomized phase III trial comparing Hd-MTX therapy with intermediate-dose (Id)-MTX therapy. This study was registered at UMIN-CTR (ID: C000000063). Philadelphia chromosome (Ph)-negative ALL patients aged between 25 and 64 years of age were enrolled...
September 15, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28912853/efficacy-research-of-salazosulfamide-in-ankylosing-spondylitis-and-nat1-gene-polymorphism
#20
Xiu-Fen Ma, Xiao-Dong Wang, Run-Rong Liu, Qing-Xia Luan
The aim of this study was to explore the correlation of salazosulfamide efficacy on ankylosing spondylitis and N-acetyltransferase 1 (NAT1) gene polymorphism. Thirty-two patients with ankylosing spondylitis were recruited in the experimental group and 36 normal individuals were recruited to the control group. The experimental group received 8.0 mg of salazosulfamide (MTX) per week and the control group received isodose of normal saline. Twenty-six patients in the experimental group responded to the salazosulfamide treatment and 6 did not show response...
October 2017: Experimental and Therapeutic Medicine
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