Allometry of brain metabolism: Fig. 1.

VITAMIN A: METABOLISM AND FUNCTIONS [Table/Fig-1]

Vitamin A is involved in regulation of fetal lung growth. It protects the preterm lung from oxidative damage. It maintains the integrity of respiratory tract epithelium and helps in differentiation of epithelial cells. In addition, it is necessary for the formation of photosensitive visual pigment in the retina. Preterm neonates, especially very low birth weight (VLBW) have lower concentrations...

Fig. 1

The allometry of brain miniaturization in ants.

Extensive studies of vertebrates have shown that brain size scales to body size following power law functions. Most animals are substantially smaller than vertebrates, and extremely small animals face significant challenges relating to nervous system design and function, yet little is known about their brain allometry. Within a well-defined monophyletic taxon, Formicidae (ants), we analyzed how...

The Allometry of Brain Miniaturization in Ants

Extensive studies of vertebrates have shown that brain size scales to body size following power law functions. Most animals are substantially smaller than vertebrates, and extremely small animals face significant challenges relating to nervous system design and function, yet little is known about their brain allometry. Within a well-defined monophyletic taxon, Formicidae (ants), we analyzed how...

On being small: brain allometry in ants.

Comparative neurobiologists have provided ample evidence that in vertebrates small animals have proportionally larger brains: in a double-logarithmic plot of brain weight versus body weight all data points conform quite closely to a straight line with a slope of less than one. Hence vertebrate brains scale allometrically, rather than isometrically, with body size. Here we extend the phylogeneti...