Regulatory effect of Xifeng Dingchuan Prescription on VEGF, EGF and TGF-β2 in serum of asthmatic guinea pigs#br#
GUO Sitong1 SHANG Lili2
1.Graduate School, Anhui University of Chinese Medicine, Anhui Province, Hefei 230038, China;
2.Department of Pediatrics, the First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui Province, Hefei 230031, China
Abstract:Objective To study the regulatory effect of Xifeng Dingchuan Prescription on vascular endothelial growth factor (VEGF), epidermal growth factor (EGF) and transforming growth factor β2 (TGF-β2) in asthmatic guinea pigs and explore its mechanism of action. Methods Seventy-two general grade male guinea pigs were divided into normal control group, cold asthma model group, high dose group [22.72 g/(kg·d)], medium dose group [11.36 g/(kg·d)], low dose group [5.68 g/(kg·d)] of Xifeng Dingchuan Prescription, Dexamethasone group [0.5 mg/(kg·d)] according to random number table method, with 12 guinea pigs in each group. In addition to the normal control group, ovalbumin sensitization + cold stimulation was used to replicate the guinea pig model of cold asthma. The normal control group was given equal dose of normal saline. On the 29th day of the experiment, the high, medium and low dose groups of Xifeng Dingchuan Prescription were given orally, while normal control group and cold asthma model group were given normal saline. The general situation of guinea pigs in each group was observed. HE staining was used to detect the therapeutic effect of Xifeng Dingchuan prescription on guinea pig model of cold asthma. The contents of VEGF, EGF, and TGF-β2 in serum were