Table 1.

Data on blood glucose concentration, body weight, kidney weight, kidney to body weight ratio for young, middle-aged and old mice are shown

	Young	Middle-aged	Old
Blood sugar (mg dL−1)	112± 4.7	104 ± 5.6	101 ± 10
Body weight (g)	21.8 ± 0.5	26.2 ± 0.8***	24.5 ± 0.9*
Kidney weight (mg)	185 ± 23.8	277 ± 31.6*	350 ± 39**
Kidney/Body weight (mg g−1)	5.9 ± 0.2	7.1 ± 0.1**	8.8 ± 0.5***,†††

^*P < 0.05,

^**P < 0.01,

^***P < 0.001 vs. young,

^†††P < 0.001 vs. middle-aged mice by ANOVA (n = 6–10 mice in each group).