[Decocting kinetics of Moringa oleifera leaves: based on correlation of decocting factors and multiple components].

Content of multiple components (neochlorogenic acid,L-tryptophan,vicenin-2,isoquercitrin,and astragalin) in Moringa oleifera leaves was determined by high-performance liquid chromatography (HPLC),and the absolute content-time curves were plotted.Based on Fick's law of diffusion and Higbie's penetration theory,the parameters of the equations were calculated,and the measured results were substituted into the mathematical model to fit the equations.The n and a obtained from the equations on the decocting time factor and the solvent volume were close to each other.

Pharmacology, Toxicity, Bioavailability, and Formulation of Magnolol: An Update.

Magnolol (MG) is one of the primary active components of cortex, which has been widely used in traditional Chinese and Japanese herbal medicine and possesses a wide range of pharmacological activities. In recent years, attention has been drawn to this component due to its potential as an anti-inflammatory and antitumor drug. To summarize the new biological and pharmacological data on MG, we screened the literature from January 2011 to October 2020.

Pharmacokinetics, tissue distribution, bioavailability, and excretion of nuciferine, an alkaloid from lotus, in rats by LC/MS/MS.

Objective: In order to characterize the pharmacokinetics, tissue distribution, bioavailability, and excretion of nuciferine, a reliable gradient LC/MS/MS-based method was developed and validated.

Methods: Sprague-Dawley rats were intravenously injected with a bolus of nuciferine (0.2 mg/kg) and orally given a single dose of nuciferine (10.

Zephycandidine A, the First Naturally Occurring Imidazo[1,2-f]phenanthridine Alkaloid from Zephyranthes candida, Exhibits Significant Anti-tumor and Anti-acetylcholinesterase Activities.

Zephycandidine A (1), the first naturally occurring imidazo[1,2-f]phenanthridine alkaloid, was isolated from Zephyranthes candida (Amaryllidaceae). The structure of 1 was elucidated by spectroscopic analyses and NMR calculation, and a plausible biogenetic pathway for zephycandidine A (1) was proposed. Zephycandidine A (1) exhibited significant cytotoxicity against five cancer cell lines with IC values ranging from 1.

Binding of citreoviridin to human serum albumin: multispectroscopic and molecular docking.

Citreoviridin (CIT), a mycotoxin produced by Penicillium citreonigrum, is a common contaminant of wide range of agriproducts and detrimental to human and animal health. In this study, the interaction of CIT with human serum albumin (HSA) is researched by steady-state fluorescence, ultraviolet-visible (UV-Vis) absorption, circular dichroism (CD) methods, and molecular modeling. The association constants, binding site numbers, and corresponding thermodynamic parameters are used to investigate the quenching mechanism.

Effects of Yerba Mate tea (Ilex paraguariensis) on vascular endothelial function and liver lipoprotein receptor gene expression in hyperlipidemic rats.

Yerba Mate tea (Mate), an infusion made from the leaves of the tree Ilex paraguariensis, is a widely consumed beverage in South America. This study was performed to investigate the effect of Mate tea on vascular endothelial dysfunction and liver lipoprotein receptor gene expression in hyperlipidemic rats, with the aim of gaining insight into its known lipid-lowering protective mechanisms. Sixty male Sprague-Dawley rats were randomly divided into five groups: a normal control group (NC), a high-fat diet group (HC), and three Mate tea-treated groups.

Aqueous extract of Yerba Mate tea lowers atherosclerotic risk factors in a rat hyperlipidemia model.

Yerba Mate tea (Mate) is believed to be a natural source of cardioprotective lipid-lowering and antioxidant compounds. In this study, the antihyperlipidemic and antioxidant effects of Mate tea in a rat hyperlipidemia model were investigated. Male Sprague-Dawley rats were divided randomly into five groups and fed varying diets: standard diet, hyperlipidemic diet, and hyperlipidemic diet supplemented with low, moderate, or high concentrations of Mate tea aqueous extract (1%, 2%, and 4% w/v, respectively).

In vitro evaluation of a Folate-bovine serum albumin-doxorubicin conjugate.

Doxorubicin (DOX) is one of the most effective anticancer drugs. However, its therapeutic effectiveness is greatly hampered by its dose limiting and cumulative cardiotoxic side effects. To overcome these limitations, bioconjugates of DOX were studied using bovine serum albumin (BSA) as a carrier to provide passive tumor targeting by the enhanced permeability and retention (EPR) effect.

Folate receptor-targeted quantum dot liposomes as fluorescence probes.

In this study, the preparation of the novel imaging agents, folate receptor (FR)-targeted liposomes encapsulating hydrophilic CdTe quantum dots (QDs), and their use as luminescence probes for live cell imaging are reported. Hydrophilic CdTe QDs were directly synthesized in the water phase, and FR-targeted QD liposomes were prepared by hydrating the lipid thin film with CdTe suspension. Formulations were characterized by UV-visible and fluorescent measurements, liposomal particle size, and zeta potential.