PMID: 16522244Mar 9, 2006Paper

Dingchuantang decoction restores the imbalance of TH2/TH1 in mice infected by respiratory syncytial virus

Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics
Zhen-Ze CuiXue-Feng Wang

Abstract

Dingchuantang is a traditional Chinese medicine decoction which has the Qing, Xuan and Jiang components which have the ability to dispel (Xuan), depress (Jiang) and heat clear or febrigugal (Qing). It has been used for asthma and respiratory syncytial virus (RSV) infection. However, the therapeutic mechanisms of the decoction have not been identified. To understand the mechanism of the anti-RSV property of Dingchuantang, this study investigated the effects of Dingchuantang and its three components on the levels of interleukin-4 (IL-4) and interferon-gamma (gamma-IFN) in mice infected by RSV. One hundred and twenty mice were randomly assigned into Normal, Infected, Dingchuantang-treated, Qing component-treated, Xuan component-treated and Jiang component-treated groups (n=20 each). The RSV infection model was prepared in the rats from the last 5 groups. The 4 treatment groups were administered with Dingchuantang, Qing component, Xuan component and Jiang component by gastric lavage respectively 2 hrs after RSV innoculation. The contents of RSV in the lungs were tested by reverse transcription polymerase chain reaction (RT-PCR). The levels of IL-4 and gamma-IFN in broncho-alveolar lavage fluid (BALF) were measured by enzyme linked ...Continue Reading

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