Figure 2
(a) Microangiogram images showing the baseline branching pattern (to the fourth generation) of small pulmonary arteries, and (b) the number of opaque vessels (mean ± s.e.m.) at each of the first four branching generations of the pulmonary circulation in Dahl salt-resistant rats (Dahl-R; n = 7) and salt-sensitive rats with secondary PH (Dahl-S; n = 7). Data are also provided for SD rats for comparative purposes [§ taken from Schwenke et al. (2011)]. The tungsten wire in each angiogram image is a reference of diameter 50 µm. *Significant difference between Dahl-R and Dahl-S rats (P < 0.05). †Significantly different from SD rats (P < 0.05). |