Table 1.

Properties of vesicular release from astrocytes.

Vesicle Cargo	Release Latency	Vesicle Appearance	Vesicle Size	Recycling
Amino Acids	milliseconds	clear core	~ 30 - 50 nm	fast
Nucleotides	seconds	dense, not so dense, and clear core	~ 100 nm	presumably fast
Peptides	seconds	dense and not so dense core	~ 30-100 nm	slow

Note: Vesicular size in astrocytes seems to substantially vary (see text for details)