ABSTRACT
ObjectiveTo reveal the relation between rhBNP and vascular remodeling,the relation between rhBNP and levels of serum high sensitive C reactive protein (hs-CRP).Methods20 male New Zealand rabbits were randomly divided into two groups.All the rabbits were constructed to be models of angioplasty with BC.After injury,the control group were feed with standard forage,the rhBNP group received standard forage plus sibeutaneous rhBNP [0.1mmg/(kg · day),20 days].The rabbits were killed 4weeks after initial injury.The injured segments were dissected free from arteria iliaca externa,processed for histological and morphological study by TD 2000 analysis system of pathology image.The data of vascular remodeling was determined.The levels of hs-CRP were measured at the beginning and the end of the experiment.ResultsThere was significant difference in AUIEM and AUEEM[ (643.2±134.06) μm2 vs (493.7±139.32) μm2 ; (1495.1±204.98)μm2 vs (1265.9±232.56)μm2,P ＜ 0.05 ],extremely significant difference in residual cavity areas and ratios of stenosis[ (519.1±93.47) μm2 vs (308.6±86.50) μm2;(18.68±7.72) μm2 vs (38.04±8.32) μm2,P ＜ 0.01 ].There was no significant difference between the areas of media (P＞ 0.05).rhBNP reduced the levels of hs-CRP on the 28th day.ConclusionsrhBNP can benefit vascular remodeling after angioplasty which might be through its anti -inflammatory action.
ABSTRACT
Objective To reveal the relation between Nesiritide and vascular remodeling,the relation between Nesiritide and the levels of aldosterone.Methods 20 male New Zealand rabbits were randomly divided into two groups.All rabbit models were constructed with BC.After injury,the control group were fed with standard forage,the Nesiritide group received standard forage plus subcutaneous Nesiritide[0.1 mg/dissected free from arteria iliaca externa,processed for histological and morphological study by TD 2000 analysis system of pathology image.Data of vascular remodeling and the levels of plasma aldosterone were determined.Results There had significant difference between AUIEM and AUEEM(P ＜ 0.05),markedly significant difference was also found in residual cavity areas and ratios of stenosis(P ＜0.01).There had no significant difference between areas of media(P ＞ 0.05).Aldosterone reduced from the 28th day.Conclusions Nesiritide could benefit vascular remodeling after angioplasty,which might be through reducing aldosterone.