Results: 151

Comparative effect of ciprofloxacin and moxifloxacin on the modulation of bile acid profiles and gut microbiota in rats

Abstract Fluoroquinolones are an important class of antimicrobial agents to manage infectious diseases. However, knowledge about how host bile acids are modified by fluoroquinolones is limited. We investigated and compared the impact of fluoroquinolones on circulating bile acid profiles and gut microbiot...

HPLC-DAD analysis, antifungal and antioxidant activity of Solanum dolichosepalum bitter extracts and fractions

Abstract Solanum dolichosepalum is a plant with anti-infective effects. It is a healing agent and has ethnopharmacological uses. In this study, the antifungal activity of extracts and fractions of this species on C. albicans and F. oxysporum was evaluated. The antioxidant activity was measured using the ...

Separation and determination of D-malic acid enantiomer by reversed-phase liquid chromatography after derivatization with (R)-1-(1-naphthyl) ethylamine

Abstract L-Malic acid is the Active Pharmaceutical Ingredient of the latest generation of compound electrolyte injection (STEROFUNDIN ISO, Germany) and plays a very important role in the rescue of critically ill patients. The optical purity of L-malic acid is a Critical Quality Attributes. A new reversed...

Development and validation of a simple and noninvasive method for salivary uric acid: potential applications for monitoring the salivary uric acid level in healthy volunteers and gout patients

Abstract Serum uric acid (UA) is a traditional biomarker in the clinical diagnosis of gout and hyperuricemia. However, serum treatment and storage are cumbersome, and wounds are susceptible to infection. Therefore, in this study, a simple and noninvasive method was developed to detect the UA in human sal...

Development and validation of a HILIC-HPLC-ELSD method for simultaneous determination of glucosamine hydrochloride and chondroitin sulfate in dietary supplements

Abstract The objective of the present study is to develop and validate a simple, selective and accurate hydrophilic interaction liquid chromatography - a high performance liquid chromatography incorporating an evaporative light scattering detector (HILIC-HPLC-ELSD) method for simultaneously determining ...

Development and validation of a reversed-phase HPLC method for quantification of 1'-acetoxychavicol acetate content in a nanostructured lipid carrier formulation

Abstract 1'-acetoxychavicol acetate (ACA)-loaded nanostructured lipid carriers (NLCs) were formulated for prostate cancer therapy and to determine the optimal therapeutic dose, we developed a rapid, specific, and accurate reversed-phase high-performance liquid chromatography (RP-HPLC) method to quantify ...

Estudio comparativo: cromatografía liquida de alta presión versus electroforesis de hemoglobina. Diagnóstico de anemia drepanocítica
Comparative study: high pressure liquid chromatography versus hemoglobin electrophoresis. Diagnosis of sickle cell anemia

La anemia de células falciformes (ACF) es la hemoglobinopatía hereditaria más común en el mundo. El diagnóstico definitivo se hace por electroforesis de hemoglobina (EFH), relativamente costosa. Por ello ante la sospecha diagnóstica se solicita Metabisulfito de sodio al 2% (MS2), que tiene un menor...

Nanostructured lipid carrier containing hydroxymethylnitrofurazone: preparation, characterization and in vitro and in vivo evaluation of leishmanicidal activity

Leishmaniasis, a neglected tropical disease (NTD), is a set of diseases caused by obligatory parasitic protozoa of the genus Leishmania. And it has cutaneous and visceral eishmaniasis as its main forms. Treatment includes pentavalent antimonials. These drugs have several disadvantages, such as the need f...

Planejamento, síntese, modelagem molecular e avaliação biológica de novos potenciais inibidores duais HDAC/ MMP não-hidroxamatos

A inibição de alvos específicos como metaloproteinase de matriz (MMP) e histona desacetilase (HDAC) é amplamente estudada para impedir o progresso do câncer. Foi estabelecido que a inibição concomitante de MMP e HDAC é eficaz no combate de tumores sólidos e hematológicos. Ambos os alvos possuem...

Estudo da eficácia de encapsulação da Cinarizina em cubossomos não-iônicos: caracterização estrutural e citotóxica

Os cubossomos são partículas nanoestruturadas em forma de bicamada lipídica, bicontínuas e altamente curvadas, as quais devem ser estabilizadas por um polímero não-iônico, neste caso o Pluronic® F-127. Podem ser compostos por alguns tipos de lipídios específicos que possuem a capacidade de se a...