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. Author manuscript; available in PMC: 2007 Apr 12.
Published in final edited form as: Nature. 2006 Oct 1;443(7112):700–704. doi: 10.1038/nature05193

Figure 3.

Figure 3

Propagation and transmitter-evocation of retinal pericyte constriction. a Electrically stimulating a pericyte (black arrow) evokes local constriction (red dashes show vessel diameter) followed by constriction of distant pericytes (blue). b No constriction of intervening non-pericyte regions (green). c,d UTP constricts two pericytes (arrows) but not at non-pericyte region. e Mean (±s.e.m.) UTP-evoked constriction. f,g Pericyte constriction (top arrows; lower arrows show another pericyte) evoked by electrical stimulation (electrode, right) near inner plexiform layer. h,i Constriction of pericyte (top arrows; lower arrows show another pericyte) evoked by puffing GABA receptor blockers (electrode, top left) near inner plexiform layer.