Table 2.

Characteristics of male F344 rats obtained from Taconic Farms, NIA

	Young SED	Young EX	Old SED	Old EX
BW (g)	403 ± 12	387 ± 10	456 ± 17†	417 ± 23*
Kidney wt (g (100 g BW)−1)	0.26 ± 0.01	0.28 ± 0.01	0.41 ± 0.04†	0.34 ± 0.02
PCr (mg dl−1)	0.11 ± 0.02	0.12 ± 0.01	0.22 ± 0.01†	0.20 ± 0.03†
CCr (ml min−1 (100 g BW)−1)	1.98 ± 0.22	1.86 ± 0.12	0.74 ± 0.15†	1.09 ± 0.16
UpV (mg (24 h)−1 (100 g BW)−1)	2.4 ± 0.2	3.8 ± 0.1	88.8 ± 21†	65.1 ± 17†
UNOxV (μmol (24 h)−1 (100 g BW)−1)	0.76 ± 0.01	1.21 ± 0.08*	0.46 ± 0.15	0.88 ± 0.10*†

SED, sedentary; EX, exercise; BW, body weight; PCr, plasma creatinine; C_Cr, creatinine clearance; U_pV, urinary protein excretion; U_NOxV, urinary nitrate/nitrite excretion

^*P < 0.05 vs. respective SED.

^†P < 0.05 vs. respective Young.