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https://www.readbyqxmd.com/read/28080136/isoniazid-a-review-of-characteristics-properties-and-analytical-methods
#1
Guilherme Felipe Dos Santos Fernandes, Hérida Regina Nunes Salgado, Jean Leandro Dos Santos
Isoniazid is a synthetic antimicrobial and one of the most important first-line drugs used in the treatment of tuberculosis. Since it was introduced in the therapy in 1952, the drug remains at the front line of the antituberculosis treatment mainly due to its potency and high selectivity against Mycobacterium tuberculosis. Pharmaceutical analysis and therapeutic drug monitoring of isoniazid in both, pharmaceuticals and biological samples, plays an important role to comprehend aspects regarding to bioavailability, bioequivalence and therapeutic monitoring during patients following-up...
January 12, 2017: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/28080135/characteristics-properties-and-analytical-methods-of-amoxicillin-a-review-with-green-approach
#2
Bianca Aparecida de Marco, Jéssica Sayuri Hisano Natori, Stefany Fanelli, Eliane Gandolpho Tótoli, Hérida Regina Nunes Salgado
Bacterial infections are the second leading cause of global mortality. Considering this fact, it is extremely important studying the antimicrobial agents. Amoxicillin is an antimicrobial agent that belongs to the class of penicillins; it has bactericidal activity and is widely used in the Brazilian health system. In literature, some analytical methods are found for the identification and quantification of this penicillin, which are essential for its quality control, which ensures maintaining the product characteristics, therapeutic efficacy and patient's safety...
January 12, 2017: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/27992028/measurement-of-the-area-of-venous-ulcers-using-two-software-programs
#3
Thaís Dresch Eberhardt, Suzinara Beatriz Soares de Lima, Luis Felipe Dias Lopes, Eline de Lima Borges, Teresinha Heck Weiller, Graziele Gorete Portella da Fonseca
Objective: to compare the measurement area of venous ulcers using AutoCAD(r) and Image Tool software. Method: this was an assessment of reproducibility tests conducted in a angiology clinic of a university hospital. Data were collected from 21 patients with venous ulcers, in the period from March to July of 2015, using a collection form and photograph of wounds. Five nurses (evaluators) of the hospital skin wound study group participated. The wounds were measured using both software programs...
December 19, 2016: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/27737379/factors-associated-with-the-healing-of-complex-surgical-wounds-in-the-breast-and-abdomen-retrospective-cohort-study
#4
Eline Lima Borges, José Ferreira Pires, Mery Natali Silva Abreu, Vera Lúcia de Araújo Lima, Patrícia Aparecida Barbosa Silva, Sônia Maria Soares
Objective: to estimate the healing rate of complex surgical wounds and its associated factors. Method: retrospective cohort study from 2003 to 2014 with 160 outpatients of a Brazilian university hospital. Data were obtained through consultation of the medical records. Survival function was estimated using the Kaplan-Meier method and Cox regression model to estimate the likelihood of the occurrence of healing. Results: the complex surgical wound healing rate was 67...
October 10, 2016: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/27650368/a-critical-review-of-properties-and-analytical-methods-for-the-determination-of-oxytetracyline-in-biological-and-pharmaceutical-matrices
#5
Rúbia Adrieli Sversut, Adriane Andrade da Silva, Teófilo Fernando Mazon Cardoso, Nájla Mohamad Kassab, Marcos Serrou do Amaral, Hérida Regina Nunes Salgado
Antibiotics have an unquestionable importance in the treatment of many infections. Oxytetracycline is an antibiotic belonging to the class of tetracyclines, available for use in human and veterinary medicine. Development of analytical methods that prove the quality and efficacy of these drugs is fundamentally important to the pharmaceutical industry. In this context, the research presents an overview of the analytical profile of oxytetracycline, describing its chemical and pharmacological properties, and analytical methods for quantification of this drug in biological samples and pharmaceutical products...
March 4, 2017: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/27591671/rp-hplc%C3%A3-hilic-chromatography-for-quantifying-ertapenem-sodium-with-a-look-at-green-chemistry
#6
Tahisa M Pedroso, Ana C D Medeiros, Herida R N Salgado
Ertapenem sodium is a polar and ionizable compound; therefore, it has little retention on traditional C18 columns in reverse-phase high-performance liquid chromatography, even using a highly-aqueous mobile phase that can result in dewetting in the stationary phase. Thus, the most coherent process for ERTM is to develop a method for Hydrophilic Interaction Chromatography. However, for the traditional methods in HILIC, the use of a highly organic mobile phase is necessary; usually an amount exceeding 80% acetonitrile is necessary...
November 1, 2016: Talanta
https://www.readbyqxmd.com/read/27500358/loaded-ce-ag-organic-inorganic-hybrids-and-their-antibacterial-activity
#7
Laurianne Truffault, Danilo Fernando Rodrigues, Hérida Regida Nunes Salgado, Celso Valentim Santilli, Sandra Helena Pulcinelli
There are requirements for surfaces with antibacterial properties in various technological fields. U-PEO hybrids with antibacterial properties were synthesized by the sol-gel process, incorporating combinations of cerium and silver salts at different silver molar fractions (0, 0.02, 0.05, 0.10, and 1) relative to the total amount of doped cations. The loaded hybrids were characterized by TGA, XRD, and Raman spectroscopy. Release tests were performed using UV-vis spectroscopy, and the antibacterial properties of the hybrids were studied in agar tests and turbidimetry assays...
November 1, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27494757/characteristics-properties-and-analytical-methods-of-cefadroxil-a-review
#8
Bianca Aparecida de Marco, Hérida Regina Nunes Salgado
Infections are the second leading cause of mortality worldwide and there are many reasons justifying the need for further studies of antimicrobial agents. Cefadroxil is a drug that has bactericidal activity and broad spectrum of action. Quantitative analyzes about cefadroxil are essential for the understanding of bioavailability, bioequivalence, and therapeutic control, which will ensure the product's characteristics and patients' safety. Thus, this study highlights a brief literature review about the drug and the existing methods developed for the determination of cefadroxil found in official and scientific papers...
March 4, 2017: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/27484158/cost-effectiveness-of-a-herpes-zoster-vaccination-program-among-the-french-elderly-people
#9
Emmanuel Belchior, Daniel Lévy-Bruhl, Yann Le Strat, Magid Herida
A vaccine against herpes zoster (HZ) and its complications has already proven safe and effective against infection and pain and against the related deterioration of quality of life in the elderly. In order to inform the vaccination decision-making process regarding inclusion of this vaccine in the French immunization schedule, we assessed the cost-effectiveness of several vaccination scenarios, compared to no vaccination. We chose to use a previously published Markov model. Starting vaccination in elderly individuals aged 65, 70 and 75 y old appears more cost-effective than vaccination for those aged 60 y old, with a cost-effectiveness ratio between 30,000 and 35,000 euros per quality-adjusted-life year (QALY) gained for the first 3 age groups versus 54,500 €; for the latter group...
September 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27475029/-differentiation-between-moisture-lesions-and-pressure-ulcers-using-photographs-in-a-critical-area
#10
Josefa Valls-Matarín, Mercedes Del Cotillo-Fuente, María Pujol-Vila, Rosa Ribal-Prior, Inmaculada Sandalinas-Mulero
OBJECTIVES: To identify difficulties for nurses in differentiating between moisture lesions and pressure ulcers, proper classification of pressure ulcers to assess the adequate classification of the Grupo Nacional para el Estudio y Asesoramiento de Úlceras por Presión y Heridas Crónicas (GNEAUPP) and the degree of agreement in the correct assessment by type and category of injury. METHOD: Cross-sectional study in a critical area during 2014. All nurses who agreed to participate were included...
September 2016: Enfermería Clínica
https://www.readbyqxmd.com/read/27455934/characterization-of-polymorphic-forms-of-rifaximin
#11
Ana Carolina Kogawa, Selma Gutierrez Antonio, Hérida Regina Nunes Salgado
Rifaximin is a gut-selective oral antimicrobial that has no systemic adverse effects compared with placebo. It is used for the treatment of hepatic encephalopathy, traveler's diarrhea, irritable bowel syndrome, Clostridium difficile infection, ulcerative colitis, and acute diarrhea. The crystalline form present in rifaximin, α, has minimal systemic absorption compared to the amorphous form. The objective of this study was to obtain polymorphic forms of rifaximin using recrystallization processes. The forms were characterized and studied by thermal analysis, X-ray powder diffraction, scanning electron microscopy, and solubility testing...
July 2016: Journal of AOAC International
https://www.readbyqxmd.com/read/27429835/quantification-of-rifaximin-in-tablets-by-spectrophotometric-method-ecofriendly-in-ultraviolet-region
#12
Ana Carolina Kogawa, Hérida Regina Nunes Salgado
Rifaximin is an oral nonabsorbable antibiotic that acts locally in the gastrointestinal tract with minimal systemic adverse effects. It does not have spectrophotometric method ecofriendly in the ultraviolet region described in official compendiums and literature. The analytical techniques for determination of rifaximin reported in the literature require large amount of time to release results and are significantly onerous. Furthermore, they use toxic reagents both for the operator and environment and, therefore, cannot be considered environmentally friendly analytical techniques...
2016: Scientifica
https://www.readbyqxmd.com/read/27130089/rapid-turbidimetric-assay-for-quantification-of-fusidic-acid-in-a-dermatological-cream
#13
Mariane Machado Curbete, Hérida Regina Nunes Salgado
Fusidic acid is an antibiotic steroid widely used for the treatment of serious infections caused by methicillin-resistant Staphylococcus aureus (MRSA) strains. Microbiological methods are indispensable to determine the mean percentage of antimicrobial in medicaments during manufacturing and quality control processes. The aim of this study was to develop and validate a microbiological method for the quantification of fusidic acid in dermatological cream by turbidimetry, using Staphylococcus epidermidis (ATCC 12228) and casoy broth as the culture medium...
June 1, 2016: Talanta
https://www.readbyqxmd.com/read/26857445/a-critical-review-of-analytical-methods-for-determination-of-ertapenem-sodium
#14
Tahisa Marcela Pedroso, Hérida Regina Nunes Salgado
Antimicrobials have unquestionable importance in the control of many diseases; however the constant concern with evolution of resistant microorganisms is increasing. Ertapenem sodium is a β-lactam antibiotic of the carbapenem class that has a broader activity spectrum than most other β-lactam antimicrobials and is more resistant to the enzyme β-lactamase, which is the main mechanism of resistance of many bacteria. The progress of microbial resistance to existing antibiotics is alarming. Thus we need to preserve antimicrobials that still have activity against these pathogens...
2016: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/26850905/economic-evaluations-of-public-health-surveillance-systems-a-systematic-review
#15
Magid Herida, Benoit Dervaux, Jean-Claude Desenclos
No abstract text is available yet for this article.
August 2016: European Journal of Public Health
https://www.readbyqxmd.com/read/26697011/editorial-the-role-of-aire-micrornas-and-cell-cell-interactions-on-thymic-architecture-and-induction-of-tolerance
#16
Geraldo Aleixo Passos, Daniella Arêas Mendes-da-Cruz, Ernna Hérida Oliveira
No abstract text is available yet for this article.
2015: Frontiers in Immunology
https://www.readbyqxmd.com/read/26534554/evaluaci%C3%A3-n-econ%C3%A3-mica-del-uso-de-la-gasa-sint%C3%A3-tica-frente-a-la-gasa-de-algod%C3%A3-n-de-pieza-%C3%A3-nica-en-el-manejo-de-heridas-en-colombia
#17
M Romero, R Marrugo
No abstract text is available yet for this article.
November 2015: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/26525253/antioxidant-activity-and-validation-of-quantification-method-for-lycopene-extracted-from-tomato
#18
Letícia Caramori Cefali, Edith Cristina Laignier Cazedey, Tatiana Maria Souza-Moreira, Marcos Antônio Correa, Hérida Regina Nunes Salgado, Vera Lucia Borges Isaac
Lycopene is a carotenoid found in tomatoes with potent antioxidant activity. The aim of the study was to obtain an extract containing lycopene from four types of tomatoes, validate a quantification method for the extracts by HPLC, and assess its antioxidant activity. Results revealed that the tomatoes analyzed contained lycopene and antioxidant activity. Salad tomato presented the highest concentration of this carotenoid and antioxidant activity. The quantification method exhibited linearity with a correlation coefficient of 0...
September 2015: Journal of AOAC International
https://www.readbyqxmd.com/read/26525246/development-optimization-and-validation-of-a-green-and-stability-indicating-hplc-method-for-determination-of-daptomycin-in-lyophilized-powder
#19
Eliane Gandolpho Tótoli, Hérida Regina Nunes Salgado
Daptomycin is an antimicrobial that plays an important role in clinical practice today because it is considered a promising drug to combat resistant strains, such as methicilin and vancomycin-resistant Gram-positive bacteria. Considering the analysis of daptomycin in a pharmaceutical dosage form, the only method found in literature uses potentially toxic organic solvents. Therefore, the objective of this work was to develop a green and stability-indicating HPLC method for determination of daptomycin in lyophilized powder...
September 2015: Journal of AOAC International
https://www.readbyqxmd.com/read/26499121/validation-of-hplc-uv-assay-of-caffeic-acid-in-emulsions
#20
Caroline Magnani Spagnol, Vera Lucia Borges Isaac, Marcos Antonio Corrêa, Hérida Regina Nunes Salgado
An accurate, sensitive, precise and rapid reversed-phase high-performance liquid chromatographic method was successfully developed and validated for the determination of caffeic acid (CA) in emulsions. The best separation was achieved on a 250 × 4.6 mm, 5.0 µm particle size RP18 XDB Waters column using ethanol and purified water (40:60 v/v) adjusted to pH 2.5 with acetic acid as the mobile phase at a flow rate of 0.7 mL/min. Ultraviolet detection was performed at 325 nm at ambient column temperature (25°C)...
March 2016: Journal of Chromatographic Science
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