Table 2

The effect of age and DR on AdoA₁R

	6 months		24 months
	AL	DR	AL	DR
B _max (fmol/mg protein)	9.89 ± 0.44	10.21 ± 0.5	9.68 ± 0.54	10.56 ± 0.79
K _d (nM)	0.25 ± 0.02	0.22 ± 0.04	0.28 ± 0.03	0.23 ± 0.03

Density and affinity of AdoA₁R receptors in cardiac ventricular membrane preparations from 6- and 24-month-old AL and DR rats. Data are presented as the mean ± S.E.M. of six rats in each age and diet group.