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JOURNAL ARTICLE
[Effect of Dracocephalum moldavica total flavones on expression of TGF-β1/Smad signaling pathway and matrix metalloproteinase of atherosclerosis ApoE-/- mice].
Zhongguo Zhong Yao za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica 2017 July
To investigate the effect and mechanism of Dracocephalum moldovica total flavones (TFDM) on the formation of atherosclerosis ApoE-/- mice induced by high fat diet. A total of 40 SPF 8-week-old male ApoE-/- mice were fed with high fat diet and randomly divided into 5 groups. TFDM high, medium, low-dose group were given 21, 42, 84 mg•kg⁻¹•d⁻¹ by gavage; Simvastatin group was fed with simvastatin 3.5 mg•kg⁻¹•d⁻¹; and model group was given the same dose of normal saline. The other eight male C57BL/6J mice of the same genetic background and age were set up as control group and fed with common diet. All of the groups were intragastrically intervened for 12 weeks. The aortic pathologic changes were observed with HE; qRT-PCR was adopted to detect TGF-β1, Smad2, Smad3, MMP-2 and MMP-9 gene levels in tissues. Compared with model group, HE staining in TFDM group showed obvious relief of aortic atherosclerotic tissue injury; each TFDM group showed inhibition in mRNA expressions of TGF-β1, Smad2, Smad3, MMP-2 and MMP-9. This suggests that TFDM can inhibit atherosclerosis formation, which may be related to the intervention of TGF-β1/Smads signal transduction.
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