Resveratrol alters erlotinib pharmacokinetics in rats: application of a rapid HPLC-fluorescence method for quantifying erlotinib in plasma.

Background: Resveratrol is a natural compound and commonly used dietary supplement, especially for its anticancer properties. However, there is a lack of pharmacokinetic (PK) studies investigating its interactions with anticancer drugs, including tyrosine kinase inhibitors (TKIs). This study aimed to investigate the effect of resveratrol on erlotinib pharmacokinetics, a TKI indicated for non-small-cell lung cancer (NSCLC).

Rapid and sensitive HPLC with fluorescence detection method for quantifying selpercatinib in liver microsomes and rat plasma: Implications for drug-drug interaction studies.

Selpercatinib (RETEVMO®) is a selective anticancer agent recently approved for thyroid and non-small cell lung cancer. Reliable analytical methods are essential for investigating its potential drug interactions. In this study, the fluorescence properties of selpercatinib were exploited for the first time to develop a sensitive high-performance liquid chromatography with fluorescence detection (HPLC-FLD) method to quantify selpercatinib in human and rat liver microsomes and rat plasma.

Development of a rapid HPLC-fluorescence method for monitoring warfarin metabolites formation: In vitro studies for evaluating the effect of piperine on warfarin metabolism and plasma coagulation.

Warfarin, a widely prescribed anticoagulant, is highly effective for various coagulation disorders. However, its efficacy is limited by a narrow therapeutic index and frequent drug interactions, especially those involving metabolism by Cytochrome P450 (CYP450) enzymes. Piperine, found in black and long pepper, possesses blood-thinning properties and has been observed to inhibit CYP3A and CYP2C enzymes linked to warfarin metabolism.

HPLC methods for studying pharmacokinetics of tivozanib and in vitro metabolic interaction with dexamethasone in rat.

Tivozanib is a recently approved tyrosine kinase inhibitor for the treatment of renal cell carcinoma. In this work, two new HPLC methods coupled with fluorescence (FLD), or photodiode array detectors (PDA) were developed and used for the first time for tivozanib quantification in rat plasma and liver microsomes. The described methods were efficient with a 4-min runtime employing a Gemini-NX C column (50 × 2.

Identification of Human Leukotriene A4 Hydrolase Inhibitors Using Structure-Based Pharmacophore Modeling and Molecular Docking.

Leukotriene B4 (LTB4) is a potent, proinflammatory lipid mediator implicated in the pathologies of an array of inflammatory diseases and cancer. The biosynthesis of LTB4 is regulated by the leukotriene A4 hydrolase (LTAH). Compounds capable of limiting the formation of LTB4, through selective inhibition of LTAH, are expected to provide potent anti-inflammatory and anti-cancer agents.

Low Molecular Weight Chitosan-Coated PLGA Nanoparticles for Pulmonary Delivery of Tobramycin for Cystic Fibrosis.

(1) Background: Poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) loaded with Tobramycin were prepared using a solvent-evaporation method. (2) Methods: The NPs were coated with low molecular weight chitosan (LMWC) to enhance the mucoadhesiveness of PLGA-NPs. The following / ratios of tobramycin to LMWC were prepared: control (0:0.