Food, drugs, and bioavailability.

Polyphenols: food sources and bioavailability.

Polyphenols are abundant micronutrients in our diet, and evidence for their role in the prevention of degenerative diseases such as cancer and cardiovascular diseases is emerging. The health effects of polyphenols depend on the amount consumed and on their bioavailability. In this article, the nature and contents of the various polyphenols present in food sources and the influence of agricultur...

Pharmacokinetics, Biodistribution and Bioavailability of Liposomal Drugs

Stealth liposomal doxorubicin (Doxil ® /Caelyx ®) passively targets to tumors through the enhanced permeability and retention (EPR) effect, which is a result of enhanced vascular permeability of tumor blood vessels. The endothelial lining of the diseased site contains gaps that can range from 380-780 nm which are large enough for the extravasation of liposomes (~100 nm). Once the liposomes are ...

The Food and Drugs Act

EHPnet: Food, Drugs and More

Multiple sequence alignments are often used for the identification of key specificity-determining residues within protein families. We present a web server implementation of the Sequence Harmony (SH) method previously introduced. SH accurately detects subfamily specific positions from a multiple alignment by scoring compositional differences between subfamilies, without imposing conservation. T...

Bound residues of veterinary drugs: bioavailability and toxicological implications.

Basic considerations dealing with the biological significance of drug residues and safety evaluation are studied. The specific problem of covalently bound residues is considered from three different points of view. (1) Analytical characteristics clearly distinguish between soluble residues, which deplete relatively fast, and bound material which is slowly eliminated from edible tissues of targe...