Table 3.

Comparisons among the IEL holes of the mesenteric arteries from Dahl salt-sensitive and salt-resistant rats, on high and low salt diets

	Large mesenteric arteries		Superior mesenteric arteries
Group	High salt diet	Low salt diet	High salt diet	Low salt diet
Percent hole
Salt-sensitive	3.80 ± 0.33 (6)	3.25 ± 0.26 (6)	8.10 ± 0.65 (6)	10.20 ± 0.50 (6)
Salt-resistant	4.28 ± 0.30 (6)	4.14 ± 0.42 (6)	10.50 ± 1.00 (6)	13.60 ± 1.70 (6)
Hole number
Salt-sensitive	18.6 ± 1.1 (6)	16.4 ± 1.0(6)	48.5 ± 14.3 (6)	52.5 ± 1.8 (6)
Salt-resistant	23.0 ± 1.8 (6)	21.7 ± 1.1* (6)	50.5 ± 3.9 (6)	58.2 ± 5.6 (6)
Hole width (µm)
Salt-sensitive	1.54 ± 0.13 (6)	1.19 ± 0.07† (6)	3.04 ± 0.08 (6)	3.66 ± 0.13† (6)
Salt-resistant	1.26 ± 0.10 (6)	1.45 ± 0.08* (6)	3.46 ± 0.34 (6)	4.19 ± 0.18* (6)
IEL circumference (µm)
Salt-sensitive	761 ± 31 (6)	617 ± 38 (6)	1797 ± 45 (6)	1869 ± 64 (6)
Salt-resistant	670 ± 46 (6)	775 ± 50 (6)	1570 ± 71 (6)	1706 ± 63 (6)

^*Significant difference between corresponding salt-sensitive group;

^†significant difference between high and low salt. Numbers in brackets signify n value (number of animals) for each group.