Table 1.
Percentages of naïve DRG neurons expressing five IA-encoding Kv mRNAs.
| Subtype | Small | Large |
|---|---|---|
| Kv1.4 | 71.5% (196/274) | 42.6% (46/108) |
| Kv3.4 | 70.9% (258/364) | 35.5% (55/155) |
| Kv4.1 | 95.1% (193/206) | 100% (146/146) |
| Kv4.2 | 6.3% (25/392) | 10.0% (20/201) |
| Kv4.3 | 56.2% (159/283) | 8.4% (14/167) |
Note: DRG neurons were classified into small (cross-sectional area ≤1000 µm2; all C-fiber neurons and smaller A-fiber neurons) and large (>1000 µm2; exclusively A-fiber neurons) groups (See18). Expression of each mRNA was examined by in situ hybridization histochemistry using 35S-labeled RNA probe and visualized by emulsion autoradiography. Cell profiles with the silver grain densities ≥ 10× background were taken as positive cells. Numbers in parenthesis are positive cells/total counted cells.