Wikipedia
Linking: http://en.wikipedia.org/wiki/Puerarin
Puerarin (1) is a major effective ingredient extracted from the traditional
Chinese medicine Ge-gen (Radix Puerariae, RP). Recently, puerarin has been used
to treat patients with coronary artery diseases (CAD). However, the mechanisms
of puerarin on CAD are still not very clear. In this study, we investigated the
role of puerarin on serum nitric oxide (NO) concentration, myocardial
endothelial nitric oxide synthase (eNOS) gene expression, the protein expression
of eNOS and inducible nitric oxide synthase (iNOS), as well as the level of
protein kinase B (Akt/PKB) phosphorylation in rats with myocardial infarction.
We found that puerarin (120 mg/kg/day, i.p.) could increase serum nitrite
concentration in rat with myocardial ischemia (MI). It also induced the gene
expression or activation of eNOS, protein expression of eNOS, and the Akt/PKB
phosphorylation. From these results, we suggested that puerarin could increase
serum nitric oxide level of rat with myocardial infarction, which should be one
of the mechanisms of the therapeutic effect of puerarin on CAD. The increased
expression of eNOS and the Akt/PKB pathway may be the underlying mechanism by
which puerarin stimulates NO production. (http://cat.inist.fr/)
Puerarin
is an extract of natural Chinese medicine and has been
extensively used in the treatment of coronary disease,
hypertension, diabetes, etc. It has also been reported
that puerarin can decrease oxidative damage and inhibit
cell apoptosis. On the basis of our previous works that
lens was oxidized by ONOO- and antagonized by puerarin,
the present study was aimed to examine the feasibility
of inhibiting cataract formation by puerarin, a chemical
known to effectively scavenge ROS and inhibit protein
glycation, both involved in the genesis of diabetic
cataracts. We used flow cytometry, immunohistochemistry
and gene array techniques to explore if puerarin decreases.......
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