Table 1.

Echocardiographic data of 21-week-old SS-Adora2b mutant rats fed a low-salt diet

	SS control	SS-Adora2b mutant
AW thickness (d), mm	2.05 ± 0.09	2.02 ± 0.11
PW thickness (d), mm	1.80 ± 0.10	2.14 ± 0.09*
ID (d), mm	7.80 ± 0.14	7.68 ± 0.12
FS, %	51.0 ± 1.2	54.3 ± 1.4
Heart rate, bpm	383 ± 6	391 ± 10
SV, μl	262 ± 10	263 ± 8
CO, ml/min	101 ± 4	101 ± 2

Data are presented as means ± SEM (n = 10–13 male rats/group)

d diastole, AW anterior wall, PW posterior wall, ID internal diameter, FS fractional shortening, bpm beats per minute, SV stroke volume, CO cardiac output

*p < 0.05 vs. SS controls by Student’s t test