Abstract:
ETHNOPHARMACOLOGICAL RELEVANCE:Traditional Chinese medicine (TCM) is clinically used under the guidance of its unique theory system. Bufei Yishen (BY) granules, an oral Chinese herbal formula, is confirmed effective for treating the syndrome of lung-kidney qi deficiency in chronic obstructive pulmonary disease (COPD) patients. Shu-Fei Tie ointment is another prescription for acupoint sticking (AS) therapy based on the theory of treating an internal disease by external treatment on proper acupoints. The beneficial effects of BY granules combined with Shu-Fei Tie have been proved in previous clinical trials. However, the underlying mechanism remains unclear. The present study was initiated to explore the antioxidative mechanism of the integrated therapy of BY granules and acupoint sticking via regulating by peroxisome proliferator activated receptor-gamma (PPARγ) signaling in a cigarette-smoke/bacterial exposure induced COPD rat model. MATERIALS AND METHODS:Rats were randomized into Control, Model, BY, AS, BY+AS and aminophylline (APL) groups. COPD rats were induced by cigarette-smoke and bacterial exposures, and were administrated with normal saline, BY granules, AS, BY+AS or aminophylline from week 9 and sacrificed at week 20. Activity of superoxide dismutase (SOD) and levels of methane dicarboxylic aldehyde (MDA) in peripheral blood and bronchoalveolar lavage fluid (BALF) were determined by hydroxylamine and thiobarbituric acid methods. The gene and protein expressions of PPARγ in the lung tissues were analyzed by quantitative polymerase chain reaction and western blot. RESULTS:Serum and BALF SOD decreased significantly in Model group (P<0.01), while MDA increased (P<0.01). Compared to COPD rats, serum SOD was higher in all treatment groups (P<0.01), and BALF SOD was higher in BY and BY+AS groups (P<0.01); serum and BALF MDA was lower in all treatment groups (P<0.01). Serum and BALF SOD was higher in BY+AS group than in AS group, while MDA was lower (P<0.05). BALF SOD increased in BY+AS group compared with APL group, while MDA decreased (P<0.05). PPARγ mRNA and protein and the phosphorylation of PPARγ (p-PPARγ) decreased in COPD rats (P<0.01), and increased in all treatment groups (P<0.01). PPARγ mRNA was higher in BY+AS group than in AS group (P<0.05), PPARγ and p-PPARγ were higher in BY+AS group than in AS and APL groups (P<0.05, P<0.01); PPARγ protein was higher in BY group than in APL group (P<0.05). CONCLUSION:Bufei Yishen granules, Shu-Fei Tie and their combination have beneficial effects in stable COPD, and can attenuate the oxidative stress, and the activation of PPARγ signaling might be involved in the underlying mechanisms, but there are no obvious synergistic effect of Bufei Yishen granules and Shu-Fei Tie.
journal_name
J Ethnopharmacoljournal_title
Journal of ethnopharmacologyauthors
Li Y,Tian YG,Li JS,Dong YQ,Wang MH,Feng SX,Li LL,Mao J,Wang LL,Luo Sdoi
10.1016/j.jep.2016.08.027subject
Has Abstractpub_date
2016-12-04 00:00:00pages
354-361eissn
0378-8741issn
1872-7573pii
S0378-8741(16)30553-0journal_volume
193pub_type
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