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Zhongguo Zhong Yao Za Zhi. 2012 Dec;37(23):3618-23.

[Study on treatment effect and mechanism of Hirsutella sinensis mycelium in idiopathic pulmonary fibrosis in rats].

[Article in Chinese]

Author information

  • 1Animal Laboratory Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China. sqy133@126.com

Abstract

OBJECTIVE:

To study and discuss the effect and mechanism of Hirsutella sinensis mycelium (HSM) on idiopathic pulmonary fibrosis in rats.

METHOD:

Forty Wistar rats were divided into five groups: the normal control group, the model control group, the high-dose group (1.0 g x kg(-1) HSM), the low-dose group (0.5 g x kg(-1) HSM), and the positive control group (10 mg x kg(-1) hydrocortisone). In addition to rats in the normal control group, the pulmonary fibrosis model was established by injecting 5 mg x kg(-1) bleomycin into rat tracheas for consecutively 28 days, in order to observe their lung function, lung tissue hydroxyproline, cytokines and pathology.

RESULT:

After rats were administered with HSM, 0.5 g x kg(-1) and 1.0 g x kg(-1) HSM could significantly decrease lung index and hydroxyproline content (P<0.01), while notably improving pulmonary function, alveolus inflammation and fibrosis degree (P<0.05, P<0.01); 1.0 g x kg(-1) HSM could decrease significantly protein expressions of TNF-alpha, IL-1beta and TGF-beta1 in lung tissues, while increasing significantly protein expressions of IFN-gamma (P<0.05).

CONCLUSION:

HSM have better effect in treating idiopathic pulmonary fibrosis in rats. Its treatment effect and mechanism are related to the regulation of TNF-alpha, IL-1beta and TGF-beta1 and IFN-gamma imbalance.

PMID:
23477151
[PubMed - indexed for MEDLINE]
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