Abstract
Objectlve To explore the effect of Qibai Pingfei capsule on the right ventricular hypertrophy index (RVHI)of rats with phlegm and blood stasis of COPD.Methods 60 rats were randomly divided into 6 groups,a control group,a model group,a Ligustrazine group,a Nifedipine group,a high dose Qibai Pingfei capsule group and a low dose Qibai Pingfei capsule group.Composite factors method was adopted to establish phlegm and blood stasis COPD rat model.At the same time of modeling.Qibai Pingfei capsule,Ligustrazine,Nifedipine were also given to these rats.Observed the changes of RVHI in each group.Results RVHI did not show statistic difierence between high dose of the Qibai Pingfei capsule group and the control group(P＞0.05).and between the Nifedipine group and the model group(P＞0.05).RVHI manifested significant diffbrencc between the Ligustrazine group and the low dose Qibai Pingfei capsule group(P＜0.01),and between the Ligustrazine group and the control group(P＜0.01).Conclusion High dose Qibai Pingfei capsule can effectively prevent the right ventricular hypertrophy of model rats with the phlegm and blood stasis of COPD.Ligustrazine has certain effects but not as good as high dose Qibai Pingfei capsule.Nifedipine can not prevent the right ventricular hypertrophy of model rats. Key words: Qibai Pingfei capsule; Chronic obstructive pulmonary disease(COPD); Phlegm and blood stasis; RVHI
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