TABLE 1.

Mechanical parameters of the vessels and relative heart weight

Parameter	Angiotensin II (n = 11)	Angiotensin II-OVX (n = 11)	Angiotensin II-OVX-estrogen (n = 11)
Tangential wall stress, kPa	16.32 ± 1.75	18.33 ± 2.58	19.15 ± 2.50
Distensibility, 1/kPa	0.0288 ± 0.0079	0.0282 ± 0.0093	0.0375 ± 0.0087
Elastic moduli, lgPa	5.48 ± 0.15	5.50 ± 0.10	5.29 ± 0.14
Cross-sectional area, μm2	30,137 ± 3,795	25,586 ± 2,596	29,550 ± 3,801
Wall-to-lumen ratio, 1/μm	0.461 ± 0.050	0.428 ± 0.050	0.409 ± 0.048
Relative heart weight, g/100g bw	0.386 ± 0.009	0.365 ± 0.021	0.390 ± 0.011

Mechanical parameters were calculated on P = 50 mm Hg. Relative heart weights were normalized and calculated per 100 g of body weight. There was no significant difference in these parameters between the groups. bw, body weight; OVX, ovariectomy.