P2X receptor subunits have been found in the brain, with P2X(2), P2X(4), an
d P2X(6) showing a high level of expression. Here, we review the findings a
bout the distribution of P2X receptor subunits in cerebellum and hippocampu
s and discuss their implication on the possible roles of ATP a's neurotrans
mitter/neuromodulator in the brain. Drug Dev. Res. 52:133-139, 2001. (C) 20
01 Wiley-Liss, Inc.