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https://www.readbyqxmd.com/read/29447631/does-daily-folic-acid-supplementation-reduce-methotrexate-efficacy
#1
A Cline, J L Jorizzo
Methotrexate is a mainstay treatment for autoimmune and inflammatory conditions in the field of Dermatology. However, in some patients, its use is associated with significant side effects and toxicity. Folate supplementation with either folic acid or folinic acid often mitigates side effects and reduces the incidence of systemic toxicity related to methotrexate. Although the value of methotrexate is clear, debate remains about folate supplementation. There is little agreement about the proper dosing or frequency of folate supplementation as many believe that daily folate supplementation can reduce methotrexate efficacy...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29441985/total-phenolic-and-tannins-determination-a-modification-of-ph-eur-2-8-14-for-higher-throughput
#2
S Wiesneth, G Jürgenliemk
A principle mostly being used to quantify phenols and tannins is the Folin-Ciocalteu's reagent method described in the European Pharmacopeia's method 2.8.14. Aim of the present study was to simplify this procedure in order to handle larger sample numbers. By changing the wavelength, the amounts of reagents, miniaturizing the setting to microtiter scale and changing the incubation time before measurement, the Ph. Eur. method 2.8.14 was optimized for a larger number of experiments. Calibration curves and time kinetics with different phenolic compounds (catechol, procyanidin B1, gallic acid, (+)-catechin, tannic acid, salicylic acid, ferulic acid) were determined...
April 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29426537/rapid-determination-of-hydrophilic-phenols-in-olive-oil-by-vortex-assisted-reversed-phase-dispersive-liquid-liquid-microextraction-and-screen-printed-carbon-electrodes
#3
Elena Fernández, Lorena Vidal, Antonio Canals
A novel approach is presented to determine hydrophilic phenols in olive oil samples, employing vortex-assisted reversed-phase dispersive liquid-liquid microextraction (RP-DLLME) for sample preparation and screen-printed carbon electrodes for voltammetric analysis. The oxidation of oleuropein, hydroxytyrosol, caffeic acid, ferulic acid and tyrosol was investigated, being caffeic acid and tyrosol selected for quantification. A matrix-matching calibration using sunflower oil as analyte-free sample diluted with hexane was employed to compensate matrix effects...
May 1, 2018: Talanta
https://www.readbyqxmd.com/read/29420256/nicotinamide-phosphoribosyltransferase-deficiency-potentiates-the-anti-proliferative-activity-of-methotrexate-through-enhanced-depletion-of-intracellular-atp
#4
Rakesh K Singh, Leon van Haandel, Daniel P Heruth, Shui Q Ye, J Steven Leeder, Mara L Becker, Ryan S Funk
Lower plasma nicotinamide phosphoribosyltransferase (NAMPT) levels are associated with improved response to methotrexate (MTX) in patients with juvenile idiopathic arthritis (JIA). Cell-based studies confirmed that reduced cellular NAMPT activity potentiates the pharmacologic activity of MTX, however the mechanism of this interaction has yet to be defined. Therefore, in this study we investigate the mechanism of enhanced pharmacologic activity of MTX in NAMPT-deficient A549 cells. The siRNA-based silencing of NAMPT expression resulted in a greater than three-fold increase in the sensitivity to MTX (p<0...
February 2, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29400626/short-term-folinic-acid-supplementation-and-aerobic-exercise-improve-vascular-reactivity-in-hiv-infected-individuals
#5
Shana S Grigoletti, Jorge P Ribeiro, Eduardo Sprinz, Paula A B Ribeiro
The aim of this study was to determine the effect of supervised exercise and folinic acid supplementation on endothelial function in HIV-infected individuals. A randomized clinical trial, double blinded, was conducted with 16 HIV-infected individuals, antiretroviral therapy (at least 6 months) with undetectable viral load (<50 copies/mL), and CD4 count > 200 cells/mm3. The subjects were randomized to aerobic exercise (n = 5) and daily intake for 4 weeks of 5 mg of folinic acid (n = 6) or placebo (n = 5) groups...
February 5, 2018: HIV Clinical Trials
https://www.readbyqxmd.com/read/29393893/characterization-of-essential-oils-obtained-from-abruzzo-autochthonous-plants-antioxidant-and-antimicrobial-activities-assessment-for-food-application
#6
Marika Pellegrini, Antonella Ricci, Annalisa Serio, Clemencia Chaves-López, Giovanni Mazzarrino, Serena D'Amato, Claudio Lo Sterzo, Antonello Paparella
In the present study, the essential oils (EOs) of some officinal plants from Abruzzo territory (Italy) were evaluated for their antimicrobial and antioxidant activities and their volatile fraction chemical characterization. The EOs were extracted from Rosmarinus officinalis, Origanum vulgare, Salvia officinalis, Mentha piperita, Allium sativum, Foeniculum vulgare, Satureja montana, Thymus vulgaris and Coriandrum sativum seeds. The antimicrobial activity was screened against thirteen Gram-positive and Gram-negative strains to determine the Minimal Inhibitory Concentration (MIC)...
February 2, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29390264/hereditary-folate-malabsorption-with-a-novel-mutation-on-slc46a1-a-case-report
#7
Jianmin Tan, Xiujuan Li, Yi Guo, Lingling Xie, Juan Wang, Jiannan Ma, Li Jiang
RATIONALE: Hereditary folate malabsorption (HFM) is characterized by folate deficiency with impaired intestinal folate absorption and impaired folate transport into the central nervous system. Its manifestations mainly include macrocytic anemia, recurrent infections, and neurological deficits. The neurological manifestations include progressive psychomotor retardation, behavioral disorders, and early-onset seizures. PATIENT CONCERNS: From early infancy, a Chinese boy had experienced macrocytic anemia, leukopenia, thrombocytopenia, recurrent pneumonia, diarrhea, and mouth ulcers...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29387108/the-effects-of-hydroalcoholic-extract-of-allium-elburzense-wendelbo-bulb-on-dexamethasone-induced-dyslipidemia-hyperglycemia-and-oxidative-stress-in-rats
#8
Leila Safaeian, Behzad Zolfaghari, Sajad Karimi, Ardeshir Talebi, Mohammadreza Aghaye Ghazvini
Recent evidences have suggested the beneficial cardiovascular effects of some plants belonging to the genus Allium. The present study is an attempt to investigate the effects of hydroalcoholic extract of Allium elburzense bulb on dexamethasone-induced dyslipidemia in rats. Total phenolic content of A. elburzense bulb hydroalcoholic extract was determined using Folin-Ciocalteu method. Thirty-six male Wistar albino rats in 6 groups were studied. Group 1 (dyslipidemic control) received dexamethasone (10 mg/kg/day, s...
February 2018: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29386497/-a-case-of-acute-leukoencephalopathy-induced-by-a-combination-of-5-fluorouracil-and-metronidazole
#9
Tatsuya Fukumoto, Fumiaki Katada, Susumu Sato, Hidehiro Shibayama, Shigeo Murayama, Toshio Fukutake
We describe a 66-year-old woman who received folinic acid, leucovorin, fluorouracil and oxaliplatin for advanced rectal carcinoma. These drugs were initiated on day 1, and a pelvic abscess was identified on day 7. Piperacillin-tazobactam was initially administered, but was changed to ceftriaxone and metronidazole on day 14 on the basis of antimicrobial susceptibility testing. On the following day, the patient reported blindness, and MRI of the brain showed signal abnormalities in the splenium of the corpus callosum on DWI, suggestive of metronidazole encephalopathy...
January 31, 2018: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/29383110/egfr-expression-in-patients-with-stage-iii-colorectal-cancer-after-adjuvant-chemotherapy-and-on-cancer-cell-function
#10
Ching-Wen Huang, Yi-Ting Chen, Hsiang-Lin Tsai, Yung-Sung Yeh, Wei-Chih Su, Cheng-Jen Ma, Tsen-Ni Tsai, Jaw-Yuan Wang
The epidermal growth factor receptor (EGFR)/RAS/RAF/MEK/MAPK pathway plays a crucial role in the carcinogenesis, invasion and metastasis of colorectal cancer (CRC). However, its role in the prognosis and prediction of relapse in patients with stage III CRC after adjuvant chemotherapy remains controversial. In the present study, the clinicopathological features of 173 patients with stage III CRC who underwent radical resection and adjuvant chemotherapy with the fluoropyrimidine/folinic acid, and oxaliplatin (FOLFOX) regimen, and their prognostic values of EGFR expression were retrospectively analyzed...
December 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29379769/salix-alba-attenuated-oxidative-stress-in-the-heart-and-kidney-of-hypercholesterolemic-rabbits
#11
Narges Amel Zabihi, Maryam Mahmoudabady, Mohammad Soukhtanloo, Parichehr Hayatdavoudi, Farimah Beheshti, Saeed Niazmand
Objective: Oxidative stress plays a critical role in the development of hypercholesterolemia-induced complications. This study evaluated the effects of aspirin and Salix alba hydroethanolic extract on oxidative stress in the heart and kidney of hypercholesterolemic rabbits. Materials and Methods: The antioxidant activity, as well as total phenolic and salicin content of S. alba (Sa) extract were assessed by DPPH radical scavenging activity, Folin-Ciocalteu and HPLC methods, respectively...
January 2018: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/29363057/ameliorative-effects-of-supplemental-folinic-acid-on-lamotrigine-induced-fetal-malformations-in-the-mouse
#12
Y M Abdulrazzaq, M Shafiullah, J Kochyil, R Padmanabhan, S M A Bastaki
Data from our previous work indicate that Lamotrigine (LTG) is teratogenic in the mouse. In the present study, we attempted to determine the possible protective effects of exogenous folate on LTG-induced fetal anomalies in TO mouse. Experiment I entailed administering 4 mg/kg of folinic acid (FA) and (25 mg/kg) of LTG intraperitoneally three times on gestation day (GD) 8 to a group of mice; other groups were a group that received similar volumes of saline, a group that received LTG and Saline, a group that received FA and saline...
January 23, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29360566/black-zira-essential-oil-chemical-compositions-and-antimicrobial-activity-against-the-growth-of-some-pathogenic-strain-causing-infection
#13
Mohammad Noshad, Mohammad Hojjati, Behrooz Alizadeh Behbahani
The aim of this study was to perform chemical compositions and phytochemical analysis of Black Zira essential oil and other goal of this research was to investigate the antimicrobial effects of Black Zira essential oil against Enterobacter aerogenes, Pseudomonas aeruginosa, Escherichia coli, Shigella flexneri, Staphylococcus epidermidis, Streptococcus pyogenes and Candida albicans. Black Zira essential oil was extracted by hydrodistillation method using clevenger apparatus. Black Zira essential oil chemical composition was identified through gas chromatography/mass spectrometry...
January 19, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29340092/first-line-dose-dense-chemotherapy-with-docetaxel-cisplatin-folinic-acid-and-5-fluorouracil-dcf-plus-panitumumab-in-patients-with-locally-advanced-or-metastatic-cancer-of-the-stomach-or-gastroesophageal-junction-final-results-and-biomarker-analysis-from-an
#14
Gianluca Tomasello, Nicola Valeri, Michele Ghidini, Elizabeth C Smyth, Wanda Liguigli, Laura Toppo, Rodolfo Mattioli, Alessandra Curti, Jens C Hahne, Federica M Negri, Stefano Panni, Margherita Ratti, Silvia Lazzarelli, Fabiana Gerevini, Chiara Colombi, Andrea Panni, Massimo Rovatti, Leonardo Treccani, Mario Martinotti, Rodolfo Passalacqua
Background: Survival for patients with advanced gastroesophageal cancer (AGC) using standard treatment regimens is poor. EGFR overexpression is common in AGC and associated with poor prognosis. We hypothesized that increasing the dose intensity of chemotherapy and adding panitumumab could improve efficacy. Methods: HER2 negative, PS 0-1 patients, received up to 4 cycles of panitumumab 6 mg/kg d 1, docetaxel 60 mg/m2 d 1, cisplatin 50 mg/m2 d 1, l-folinic acid 100 mg/m2 d 1-2, followed by 5-FU 400 mg/m2 bolus d 1-2, and then 600 mg/m2 as a 22 h c...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29332575/protective-role-of-italian-juglans-regia-l-nut-ethanolic-extract-in-human-keratinocytes-under-oxidative-and-inflammatory-stress
#15
Cinzia Calcabrini, Umberto Mancini, Roberta De Bellis, Alessandra Frati, Anna Rita Mastrogiacomo, Giosue Annibalini, Piero Sestili, Luigi Cucchiarini, Vilberto Stocchi, Lucia Potenza
OBJECTIVE: In this research, fatty acid profile and polyphenolic content of an ethanolic extract of walnut from Juglans regia L. collected in Central Italy, were performed. The potential antioxidant and anti-inflammatory effects of the extract were investigated in the human keratinocytes cell line. METHODS: Fatty acid profile was determined by gas chromatography/mass spectrometry analysis, total phenolic content by Folin-Ciocalteu method and aluminum chloride colorimetric method was used for determination of total flavonoids...
January 12, 2018: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29329275/chitosan-starch-films-with-natural-extracts-physical-chemical-morphological-and-thermal-properties
#16
Jessica I Lozano-Navarro, Nancy P Díaz-Zavala, Carlos Velasco-Santos, José A Melo-Banda, Ulises Páramo-García, Francisco Paraguay-Delgado, Ricardo García-Alamilla, Ana L Martínez-Hernández, Samuel Zapién-Castillo
The aim of this study is to analyze the properties of a series of polysaccharide composite films, such as apparent density, color, the presence of functional groups, morphology, and thermal stability, as well as the correlation between them and their antimicrobial and optical properties. Natural antioxidants such as anthocyanins (from cranberry; blueberry and pomegranate); betalains (from beetroot and pitaya); resveratrol (from grape); and thymol and carvacrol (from oregano) were added to the films. Few changes in the position and intensity of the FTIR spectra bands were observed despite the low content of extract added to the films...
January 12, 2018: Materials
https://www.readbyqxmd.com/read/29315736/dosing-oxaliplatin-in-a-haemodialysis-patient-with-metastatic-rectum-cancer-monitored-by-free-platinum-concentrations
#17
I R F van Berlo-van de Laar, W J Brummelhuis, A L T Imholz, J H Schellens, A D R Huitema, F G A Jansman
WHAT IS KNOWN AND OBJECTIVE: Oxaliplatin in combination with fluorouracil and folinic acid is one of the preferred chemotherapeutic options in the treatment of metastatic rectum cancer. However, oxaliplatin is contraindicated in patients with a creatinine clearance <30 mL/min and dosing guidelines in patients on haemodialysis have not been established. CASE SUMMARY: A 77-year-old haemodialysis patient with metastatic rectum cancer was treated with FOLFOX and bevacizumab (oxaliplatin 70 mg/m2 , folinic acid 200 mg/m2 , 5-FU 340 mg/m2 bolus and 2040 mg/m2 continuous infusion during 44 hours and bevacizumab 5 mg/kg) every three weeks...
January 5, 2018: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/29308211/elevated-homocysteine-and-n-methyl-d-aspartate-receptor-antibodies-as-a-cause-of-behavioural-and-cognitive-decline-in-22q11-2-deletion-syndrome
#18
Simon Vann Jones, Subimal Banerjee, A David Smith, Helga Refsum, Belinda Lennox
A 19-year-old male with 22q11.2 deletion syndrome presented with a 4-year history of cognitive decline and symptoms suggestive of atypical psychosis. Potential for elevated homocysteine and NMDA-receptor antibodies in the pathogenesis of his symptoms was investigated. He had elevated blood homocysteine level (18.7 μmol/l), low-normal vitamin B12 and folate levels and was positive for NMDA-receptor antibodies. Treatment with daily folinic acid (0.8 mg) and vitamin B12 (1 mg) led to dramatic improvement in his cognitive and behavioural presentation...
December 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29299370/safety-of-selective-internal-radiation-therapy-sirt-with-yttrium-90-microspheres-combined-with-systemic-anticancer-agents-expert-consensus
#19
REVIEW
Andrew Kennedy, Daniel B Brown, Jonas Feilchenfeldt, John Marshall, Harpreet Wasan, Marwan Fakih, Peter Gibbs, Alexander Knuth, Bruno Sangro, Michael C Soulen, Gianfranco Pittari, Ricky A Sharma
Selective internal radiation therapy (SIRT) with microspheres labelled with the β-emitter yttrium-90 (Y-90) enables targeted delivery of radiation to hepatic tumors. SIRT is primarily used to treat inoperable primary or metastatic liver tumors. Eligible patients have usually been exposed to a variety of systemic anticancer therapies, including cytotoxic agents, targeted biologics, immunotherapy and peptide receptor radionuclide therapy (PRRT). All these treatments have potential interactions with SIRT; however, robust evidence on the safety of these potential combinations is lacking...
December 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29284255/total-phenolic-content-ftir-analysis-and-antiproliferative-evaluation-of-lupin-seeds-harvest-from-western-romania
#20
Corina Danciu, Ioana Zinuca Pavel, Roxana Babuta, Alexa Ersilia, Georgeta Pop, Codruta Soica, Cristina Dehelean, Isidora Radulov, Suciu Oana
INTRODUCTION: Lupinus spp. are herbaceous perennial flowering plants included in the Fabaceae family. Among the approximately 200 species belonging to this genre, Lupinus albus L., also known as white lupin, Lupinus angustifolius L., and narrow-leafed lupin or blue lupin, represent two of the most studied species due to their intense culinary use and potential biological activity. The intention of the study was to characterize total phenolic content, perform FTIR analysis, and antiproliferative effects against A375 human melanoma cells extracts obtained from germinated and ungerminated seeds from Lupinus albus L...
December 23, 2017: Annals of Agricultural and Environmental Medicine: AAEM
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