New Ca2+-releasing messengers: are they important in the nervous system?

Attraction or repulsion by local Ca(2+) signals

Recent studies have shown that cytosolic Ca(2+) signals, generated on one side of a nerve growth cone, can induce turning either towards or away from the side of the Ca(2+) signal, depending on the global Ca(2+) level. The results indicate that local Ca(2+) signals may provide important directional cues for axon guidance.