Table 2

Distribution of transcripts for the splice variants of the P2X2 subunit in the rat central and peripheral nervous systems

Brain regionP2X2P2X2(b)p2x2(c)p2x2(d)
Olfactory bulb++++
Cingulate cortex++++
Striatum+++
Retrosplenial cortex+++++++++
Piriform cortex+++++++++++
Hippocampus
 CA1 field+++++++++
 CA2 field++++++++
 CA3 field++++++++
Dentate gyrus+++++++++
Medial habenula+++
Dorsomedial hypothalamus++++++++
Ventromedial hypothalamus++++++++++
Supraoptic nucleus+++++++
Locus ceruleus+++++++
Mesencephalic trigeminal nucleus++++++
Spinal trigeminal nucleus+++++
Spinal trigeminal tract+++
Cerebellum+++++++
Ganglia
 Nodose++++++++++++
 Superior cervical+++++++±
 Dorsal root+++±

Signals were scored as absent (−), just detectable (±), low (+), moderate (++), strong (+++), or intense (++++)