Effect of Qingre Quyu Granule (æ¸
çç¥çé¢ç²) on stabilizing plaques in the brachiocephalic artery of apolipoprotein E deficient mice.
Chin J Integr Med
; 16(5): 442-7, 2010 Oct.
Article
em En
| MEDLINE
| ID: mdl-20872119
ABSTRACT
OBJECTIVE:
To investigate the effect of Qingre Quyu Granule (æ¸ çç¥çé¢ç², QRQYG) on stabilizing vulnerable plaques in apolipoprotein E (ApoE) deficient mice.METHODS:
Seventy-two male ApoE deficient mice were given a high-fat diet from 6 weeks of age. At the 16th week, all the mice were randomized into 3 groups the QRQYG group, the simvastatin group, and the control group. Sixteen weeks after administration of 0.9 g/kg QRQYG, 3 mg/kg simvastatin or 10 mg/kg sodium chloride per day to the respective groups, the animals were euthanized. The pathological morphologic changes in the vulnerable plaques were evaluated, the matrix metalloprotease-9 (MMP-9) expression was measured by immunohistofluorescence, the soluble intercellular adhesion molecule 1 (ICAM-1) was determined by ELISA, the nuclear factor kappaB (NF-κB) subunit p65 was measured by quantitative RT-PCR, and, finally, thrombospondin-1 (TSP-1) was determined by the immunohistochemical method.RESULTS:
The plaque cross-sectional area in the brachiocephalic artery (23.7%, P<0.01), the lipid core of the plaque (43.1%±3.1%), and the number of buried fibrotic caps of the plaque were significantly decreased in the QRQYG group compared to the control group (both P<0.01); furthermore, the thickness of the fibrotic cap of the plaque increased and the intra-plaque hemorrhage of the plaque decreased. The serum soluble ICAM-1 (27.1±5.1 µg/mL), the protein expression of MMP-9 and TSP-1 and the p65 mRNA expression increased in the QRQYG group in comparison with the control group (P<0.05 or P<0.01).CONCLUSION:
QRQYG could stabilize the vulnerable plaque through inhibition of the inflammatory response.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Apolipoproteínas E
/
Medicamentos de Ervas Chinesas
/
Tronco Braquiocefálico
/
Aterosclerose
Limite:
Animals
Idioma:
En
Revista:
Chin J Integr Med
Ano de publicação:
2010
Tipo de documento:
Article