Abstract:
:Vascular endothelial dysfunction is associated with increased mortality in patients with diabetes. Astragaloside IV (As-IV) is a bioactive saponin with therapeutic potential as an anti-inflammatory and antiendothelial dysfunction. However, the underlying mechanism for how As-IV ameliorated endothelial dysfunction is still unclear. Therefore, in this study, we examined the protective effect of As-IV against endothelial dysfunction and explored potential molecular biology mechanism. In vivo, rats were intraperitoneally injected with streptozotocin (STZ) at a dose of 65 mg/kg body weight to establish a diabetic model. In vitro studies, rat aortic endothelial cells (RAOEC) were pretreated with As-IV, SB203580 (p38 MAPK inhibitor) for 2 h prior to the addition of high glucose (33 mM glucose). Our findings indicated that As-IV improved impaired endothelium-dependent relaxation and increased the levels of endothelial NO synthase (eNOS) and nitric oxide (NO) both in vivo and in vitro. Besides, As-IV treatment inhibited the elevated inflammation and oxidative stress in diabetic model both in vivo and in vitro. Moreover, As-IV administration reversed the upregulated expression of P2X7R and p-p38 MAPK in vivo and in vitro. Additionally, the effects of both P2X7R siRNA and SB203580 on endothelial cells were similar to As-IV. Collectively, our study demonstrated that As-IV rescued endothelial dysfunction induced by high glucose via inhibition of P2X7R dependent p38 MAPK signaling pathway. This provides a theoretical basis for the further study of the vascular endothelial protective effects of As-IV.
journal_name
Oxid Med Cell Longevjournal_title
Oxidative medicine and cellular longevityauthors
Leng B,Li C,Sun Y,Zhao K,Zhang L,Lu ML,Wang HXdoi
10.1155/2020/5070415subject
Has Abstractpub_date
2020-09-14 00:00:00pages
5070415eissn
1942-0900issn
1942-0994journal_volume
2020pub_type
杂志文章abstract:Background:Amino acids (AAs) in cerebrospinal fluid (CSF) play a pivotal role in cerebral ischemia (CI). BuChang NaoXinTong Capsules (BNC) are widely prescribed in Chinese medicine for the treatment of cerebrovascular and cardiovascular diseases. Methods:In order to investigate the therapeutic effects and pharmacologi...
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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abstract::[This corrects the article DOI: 10.1155/2017/4824371.]. ...
journal_title:Oxidative medicine and cellular longevity
pub_type: 已发布勘误
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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更新日期:2019-09-17 00:00:00
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journal_title:Oxidative medicine and cellular longevity
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doi:10.1155/2020/4569268
更新日期:2020-05-27 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
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更新日期:2014-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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pub_type: 杂志文章,评审
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2017/9515809
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2019/6408352
更新日期:2019-05-14 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2017/9397631
更新日期:2017-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
doi:10.1155/2014/103068
更新日期:2014-01-01 00:00:00
abstract::Flavonoids have demonstrated in vivo and in vitro leishmanicidal, trypanocidal, antioxidant, and prooxidant properties. The chemotherapy of trypanosomiasis and leishmaniasis lacks efficacy, presents high toxicity, and is related to the development of drug resistance. Thus, a series of 40 flavonoids were investigated w...
journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2017/3789856
更新日期:2017-01-01 00:00:00