due to the presence of polyphenols and phthalides in kelussia odoratissima mozzaf (umbelliferae; k. odoratissima hereafter), this medicinal plant might be a robust in-feed additive to modulate lipid peroxidation in meat-type chickens. the present study evaluates antioxidative, antihyperlipidemic, and growth-promoting effects of k. odoratissima in meat-type chickens. in a 37-day trial (5-42 days...

the experiment was conducted to determine α-amylase activity and the effect of seven plant species extracts including punica granatum l. (punicaceae), rheum officinale b. (polygonaceae), rhus coriaria l. (anacardiaceae), artemisia sieberi b. ( compositae), peganum harmala l. (nitrariaceae) , datura stramonium l. (solanaceae) and thymus vulgaris l. (lamiaceae) on α-amylase activity of four store...

Menthol is one of the most widely consumed essential oils. In vitro and in vivo studies indicate that menthol induces or inhibits drug metabolizing activities of liver or gut; thus it could decrease or increase serum drug concentrations. In vitro studies demonstrate that menthol has a relaxant effect on the gastrointestinal tract, thus it could influence the rate of drug absorption. Also in vit...

The 20th century saw numerous important discoveries in the nutritional sciences. Nonetheless, many unresolved questions still remain. Fifteen questions dealing with amino acid nutrition and metabolism are posed in this review. The first six deal with the functionality of sulfur amino acids (methionine and cysteine) and related compounds. Other unresolved problems that are discussed include prio...

An accumulating body of epidemiologic data, clinical trials, and mechanistic studies suggests that yogurt consumption as part of a healthy diet may be beneficial to cardiometabolic health. This brief review focuses on children and adolescents, introducing new concepts underlying the effect of yogurt consumption on body weight maintenance and the prevention of cardiovascular diseases. Specific p...

The evolutionary stability of synthetic genetic circuits is key to both the understanding and application of genetic control elements. One useful but challenging situation is a switch between life and death depending on environment. Here are presented "essentializer" and "cryodeath" circuits, which act as kill switches in Escherichia coli. The essentializer element induces cell death upon the l...