共 50 条
Ganoderma atrum polysaccharide improves aortic relaxation in diabetic rats via PI3K/Akt pathway
被引:53
作者:
Zhu, Ke-Xue
[1
]
Nie, Shao-Ping
[1
]
Li, Chuan
[1
]
Gong, Deming
[1
,2
]
Xie, Ming-Yong
[1
]
机构:
[1] Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Peoples R China
[2] Univ Auckland, Sch Biol Sci, Auckland 1, New Zealand
基金:
中国国家自然科学基金;
关键词:
Ganoderma atrum polysaccharide;
Aorta;
Vascular endothelium;
Vasorelaxation;
HYPERGLYCEMIA;
EXPRESSION;
APOPTOSIS;
ENDOTHELIUM;
BCL-2;
BAX;
PROGRESSION;
ACTIVATION;
MATTER;
BRAIN;
D O I:
10.1016/j.carbpol.2013.12.080
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A newly identified polysaccharide (PSG-1) has been purified from Ganoderma atrum. The study was to investigate the protective effect of PSG-1 on diabetes-induced endothelial dysfunction in rat aorta. Rats were fed a high fat diet for 8 weeks and then injected with a low dose of streptozotocin to induce type 2 diabetes. The diabetic rats were orally treated with PSG-1 for 4 weeks. It was found that administration of PSG-1 significantly reduced levels of fasting blood glucose, improved endothelium-dependent aortic relaxation, increased levels of phosphoinositide 3-kinase (PI3K), phospho-Akt (p-Akt), endothelial nitric oxide synthase (eNOS) and nitric oxide in the aorta from diabetic rats, compared to un-treated diabetics. These results suggested that the protective effects of PSG-1 against endothelial dysfunction may be related to activation of the PI3K/Akt/eNOS pathway. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:520 / 527
页数:8
相关论文