PMID- 32051086 OWN - NLM STAT- MEDLINE DCOM- 20200219 LR - 20200808 IS - 1008-8830 (Print) IS - 1008-8830 (Linking) VI - 22 IP - 2 DP - 2020 Feb TI - [Effect of Huai Qi Huang on asthma in rats and the mechanism research]. PG - 171-176 AB - OBJECTIVE: To study the role and mechanism of action of Huai Qi Huang (HQH) in the rat model of asthma. METHODS: Forty Sprague-Dawley rats were randomly divided into a control group, an asthma model group, a budesonide group, and an HQH group, with 10 rats in each group. A rat model of asthma was established by ovalbumin sensitization and challenge. The budesonide group was given budesonide aerosol 2 mg before each challenge. The HQH group was given HQH 4 g/kg dissolved in water by gavage before each challenge. Hematoxylin and eosin staining was used to observe the pathological changes of lung tissues. The percentage of eosinophils in bronchoalveolar lavage fluid (BALF) was measured. Enzyme-linked immunosorbent assay was used to determine the levels of interleukin-3 (IL-3), interleukin-4 (IL-4), interleukin-5 (IL-5), interleukin-10 (IL-10), interferon gamma (INF-gamma), and immunoglobulin E (IgE) in BALF. Flow cytometry was used to determine T-helper type 1 (Th1)/T-helper type 2 (Th2) ratio in peripheral blood and the spleen. RT-PCR and Western blot were used to measure the mRNA and protein expression of T-bet and GATA-3 in lung tissue. RESULTS: Compared with the control group, the asthma model group showed significant increases in the degree of airway inflammation, the percentage of eosinophils in BALF, and the levels of IL-3, IL-4, IL-5 and IgE in BALF (P<0.05), however, the asthma model group showed significant reductions in the levels of IL-10 and INF-gamma in BALF (P<0.05). The asthma model group had significantly lower percentage of Th1 cells but significantly higher percentage of Th2 cells in peripheral blood and the spleen compared with the control group (P<0.05). The mRNA and protein expression of T-bet in lung tissue was significantly lower, but the mRNA and protein expression of GATA-3 in lung tissue was significantly higher in the asthma group than those in the control group (P<0.05). Both HQH and budesonide significantly improved airway inflammation and the above markers in asthmatic rats (P<0.05), with comparable effects between them. However, there were still significant differences in these indices between the control group and the HQH or budesonide group (P<0.05). CONCLUSIONS: HQH can reduce the airway inflammation of asthmatic rats and alleviate the symptoms of asthma, possibly by regulating the levels of related cytokines and Th1/Th2 ratio through the T-bet/GATA-3 pathway. FAU - Lu, Na AU - Lu N AD - Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China. yanbaixh@hust.edu.cn. FAU - Bai, Yan AU - Bai Y FAU - Zhao, Chen AU - Zhao C FAU - Tian, Li AU - Tian L FAU - Wan, Xia AU - Wan X FAU - Jin, Run-Ming AU - Jin RM LA - chi PT - Journal Article PL - China TA - Zhongguo Dang Dai Er Ke Za Zhi JT - Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics JID - 100909956 RN - 0 (Drugs, Chinese Herbal) RN - 0 (huai qi huang) SB - IM MH - Animals MH - *Asthma MH - Bronchoalveolar Lavage Fluid MH - Drugs, Chinese Herbal MH - Lung MH - Mice, Inbred BALB C MH - Rats MH - Rats, Sprague-Dawley MH - Th2 Cells PMC - PMC7390013 EDAT- 2020/02/14 06:00 MHDA- 2020/02/20 06:00 PMCR- 2020/02/25 CRDT- 2020/02/14 06:00 PHST- 2020/02/14 06:00 [entrez] PHST- 2020/02/14 06:00 [pubmed] PHST- 2020/02/20 06:00 [medline] PHST- 2020/02/25 00:00 [pmc-release] AID - 10.7499/j.issn.1008-8830.2020.02.016 [pii] AID - zgddekzz-22-2-171 [pii] AID - 10.7499/j.issn.1008-8830.2020.02.016 [doi] PST - ppublish SO - Zhongguo Dang Dai Er Ke Za Zhi. 2020 Feb;22(2):171-176. doi: 10.7499/j.issn.1008-8830.2020.02.016.