TABLE 1.

Demographic characteristics of healthy volunteers^a

Variable	All	Male	Female
No.	12	6	6
Age (yr)	26.4 ± 7.0	24.8 ± 5.3	28.0 ± 8.5
Race
Caucasian	9	4	5
African American	2	1	1
East Indian	1	1	0
Ht (cm)	175 ± 10.0	180 ± 6.6	170 ± 10.3
Wt (kg)	76.3 ± 10	80.2 ± 9.7	72.3 ± 9.3
Body mass index (kg/m2)	24.8 ± 2.4	24.7 ± 2.4	25.0 ± 2.4
Blood urea nitrogen (mg/dl)	12 ± 2	14 ± 2	11 ± 2
Serum creatinine (mg/dl)	0.9 ± 0.1	1.0 ± 0.1b	0.8 ± 0.1
Creatinine clearance (ml/min)c	124 ± 11	128 ± 9	119 ± 11
Total cholesterol (mg/dl)	165 ± 27	159 ± 33	171 ± 20
High-density lipoprotein (mg/dl)	47 ± 11	47 ± 12	47 ± 10
Low-density lipoprotein (mg/dl)	91 ± 19	86 ± 23	96 ± 14

^aValues are presented as means ± standard deviations.

^bP < 0.01.

^cCreatinine clearances were calculated using the Cockroft-Gault equation.