Table 2.

Measurement of YM in the renal cortex, medulla and sinus of kidneys with ligation of the renal vein or renal artery in vivo

Positions	Vein ligation (n = 8)					Artery ligation (n = 8)
	No ligation	15 min	30 min	60 min	90 min	No ligation	Stenosis	Occulation
Cortex (Kpa)	16.34 ± 1.01	24.28 ± 1.34**	34.73 ± 2.36**	47.52 ± 4.67**	55.06 ± 5.61**	16.34 ± 1.83	14.26 ± 2.48	11.21 ± 1.79**
Medulla (Kpa)	13.71 ± 1.16	17.37 ± 1.43**	25.39 ± 2.86**	34.57 ± 6.64**	39.63 ± 2.91**	13.31 ± 1.67	11.32 ± 2.97	8.07 ± 1.37**
Sinus (Kpa)	12.61 ± 0.84	16.14 ± 4.04	24.20 ± 5.96**	26.87 ± 7.00**	29.30 ± 2.04**	12.78 ± 2.66	10.39 ± 2.57*	6.72 ± 0.95**

Values are given as the mean ± SD. Measurements were obtained at the mid-portion of the kidneys. Using paired t-test, compared with pre-ligation. ^* P < 0.05, ^** P < 0.01