Table 1.

Characteristics of barosensitive bulbospinal RVLM neurones in rats treated with anti-DβH-SAP or IgG-SAP

	IgG-SAP	Anti-DβH-SAP
All recorded cells
Conduction velocity (ms−1)	2.3 ± 0.5 (24)	4.7 ± 0.6 (19)*
Baseline FR (spike s−1)	7.3 ± 1.5 (24)	13.3 ± 2.2 (19)*
Maximum FR (spike s−1)	10.7 ± 2.0 (18)	20.1 ± 2.9 (19)*
Fast-conducting cells
Conduction velocity (m s−1)	5.6 ± 0.6 (6)	5.8 ± 0.6 (14)
Baseline FR (spike s−1)	13.3 ± 4.9 (6)	15.9 ± 2.5 (14)
Maximum FR (spikes s−1)	25.7 ± 3.5 (3)	24.4 ± 2.9 (14)

Mean ± S.E.M. (number of cells) values are presented for RVLM units recorded in rats treated with IgG-SAP or anti-DβH-SAP. Maximum firing rate (FR) was determined during nitroprusside-induced hypotension. The FR and conduction velocity between the two groups were compared by Student's t test.

^*P < 0.05.