Ischemic preconditioning with a ketogenic diet improves brain ischemic tolerance through increased extracellular adenosine levels and hypoxia-inducible factors
Ischemic preconditioning with a ketogenic diet improves brain ischemic tolerance through increased extracellular adenosine levels and hypoxia-inducible factors
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生酮饮食的缺血预处理通过增加细胞外腺苷水平和缺氧诱导因子来改善脑缺血耐受性
DOI:
10.1016/j.brainres.2017.04.010
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发表时间:
2017-07
期刊:
影响因子:
2.9
通讯作者:
Cui Mei
中科院分区:
文献类型:
--
作者:
Yang Qi;Guo Min;Wang Xun;Zhao Yanxin;Zhao Qi;Ding Hongyan;Dong Qiang;Cui Mei
Ischemic tolerance reduces brain damage and neurological dysfunction after brain ischemia. A ketogenic diet (KD) has disease-modifying effects in several neurodegenerative disorders. In this study, we fed mice with a KD for three weeks and performed reversible middle cerebral artery occlusion (MCAO) in the animals. KD-fed mice had a significantly reduced infarct volume, increased regional cerebral blood flow (rCBF) and extracellular adenosine levels in both the ischemic and the reperfusion phases.In vitroandin vivoexperiments revealed that the KD-induced neuroprotection was mediated through the adenosine A1 receptor. The KD increased Akt and ERK1/2 phosphorylation via A1R activation. Besides, the KD also upregulated robustly HIF-1α/HIF-2α and HIF regulated genes, such asVEGFandEPO. A three-week preconditioning period with a KD improved ischemic tolerance in mice with MCAO. The underlying mechanisms might include elevated extracellular adenosine levels, and increased Akt and ERK1/2 phosphorylation via A1 adenosine receptor activation, together with upregulated HIFs and HIF-regulated genes.
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DOI:
10.1038/aps.2009.80
发表时间:
2009-07
期刊:
--
影响因子:
--
作者:
Ke-qiang Xie;Li-min Zhang;Yan-Po Cao;Jun Zhu;Lin-yin Feng
通讯作者:
Ke-qiang Xie;Li-min Zhang;Yan-Po Cao;Jun Zhu;Lin-yin Feng
影响因子:
7.3
作者:
Pugliese, AM;Latini, S;Pedata, F
通讯作者:
Pedata, F
影响因子:
3
作者:
Freeman, Robert S.;Barone, Maria Cecilia
通讯作者:
Barone, Maria Cecilia
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
E. Kossoff
通讯作者:
E. Kossoff
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
S. Masino;Tianfu Li;P. Theofilas;U. Sandau;D. N. Ruskin;B. Fredholm;J. Geiger;E. Aronica;D. Boison
通讯作者:
S. Masino;Tianfu Li;P. Theofilas;U. Sandau;D. N. Ruskin;B. Fredholm;J. Geiger;E. Aronica;D. Boison