The availability of an essential dietary micronutrient is evaluated by an intestinal signaling system that in turn regulates food-uptake and response behaviors by modulating protease expression.
The optimal macronutrient composition, macronutrient space, varies strongly between closely related species and is determined by genetic changes in regulatory genes that globally reprogram gene expression profiles of metabolic pathways.
The SCHENGEN3 protein is needed for the progression of isolated microdomains into a continuous band, which is necessary for the establishment of the major extracellular diffusion barrier in plant roots: the Casparian strip.
Migratory birds with fuel stores composed of more omega-6 fats saved energy during long-duration flights, but this short-term energy saving came at the long-term cost of higher oxidative damage.
A high-phytate-low Ca2+ diet causes crystal nephropathies, renal phosphate wasting, and bone disease in rats, whereas high Ca2+ intake ameliorates the detrimental effects of a high-phytate diet.