Table 2.

Calcium wave propagation through glial cells in rat isolated whole-mount retinas

Condition	Wave radius in direction of flow (μm)	Wave radius in opposite direction of flow (μm)	Ratio of wave radii
Superfusion OFF	126  ± 5  (8)	128  ± 5  (8)	0.99  ± 0.03*
Superfusion ON	236  ± 8  (19)	95  ± 2  (19)	2.51  ± 0.10
Superfusion ON, 100 μm suramin	88  ± 3  (15)	86  ± 3  (15)	1.03  ± 0.03*

Waves were evoked by mechanical stimulation of astrocyte somata. Radii were measured 9.5 sec after stimulation. With superfusion turned off, wave radii were measured relative to the normal direction of superfusate flow. Mean ± SEM (n) are given.

^*p > 0.3; ratio not different from 1.