1. 香菇多糖对ApoE-/-小鼠动脉粥样硬化斑块形成及AMPK 信号通路的影响.
- Author
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郑学斌 and 黄玉艳
- Abstract
Objective: To investigate effects of lentinan( LNT) on atherosclerosis( AS) plaque formation and adenosine 5'-mo-nophosphate-activated protein kinase (AMPK) signaling pathway in ApoE-/-mice. Methods: ApoE-/- mice were divided into model group, Lipitor group (5 mg/kg), LNT low (5 mg/kg), medium (10 mg/kg), high (20 mg/kg) dose groups, C57BL/6 mice of similar genetic background were as control group. After 12 weeks of intragastric administration, automatic biochemical analyzer was used to detect serum triglycerides( TG), total cholesterol( TC), low-density lipoprotein( LDL-C) and high-density lipoprotein( HDL-C) levels; serum levels of IL-6 and IL-1β were detected by ELISA; oil red O staining was used to observe overall aortic plaque formation; HE staining was used to observe formation of plaque in aortic roots; AMPK pathway proteins expressions in aortawas were detected by Western blot. Results: Compared with control group, serum TC, TG, LDL-C, IL-6, IL-1β levels, aortic plaque area, aortic root plaque area, aortic tissue NLRP3, IL-6, IL-1β expressions were significantly increased in model group, p-AMPK/AMPK expression in aortic tissue and serum HDL-C level were reduced significantly (P<0.05); compared with model group, TC, TG, LDL-C, IL-6, IL-1β, aortic plaque area, aortic root plaque area, aortic tissues NLRP3, IL-6 and IL-1β expressions were reduced significantly in Lipitor group and medium, high dose LNT groups, p-AMPK/AMPK expression in aortic tissue and serum HDL-C level were increased significantly, difference between each dose of LNT was statistically significant (P<0.05); there was no significant difference between Lipitor group and LNT high-dose group( P>0.05). Conclusion: LNT may inhibit inflammatory response and formation of AS plaques in AS mouse by activating AMPK pathway. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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