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Puerarin Improves Vascular Insulin Resistance and Cardiovascular Remodeling in Salt-Sensitive Hypertension
- Source :
- The American Journal of Chinese Medicine. 45:1169-1184
- Publication Year :
- 2017
- Publisher :
- World Scientific Pub Co Pte Lt, 2017.
-
Abstract
- Puerarin is an isoflavonoid isolated from the Chinese herb, Kudzu roots (also known as Gegen), which has been widely used for the treatment of hypertensive diseases and diabetic mellitus in traditional Chinese medicine. Dahl salt-sensitive (DS) rat is a genetic model of salt-sensitive hypertension with cardiovascular injury and vascular insulin resistance. Here, we investigated whether puerarin improved vascular insulin resistance and attenuated cardiac and aortic remodeling in salt-sensitive hypertension. DS rats were given a normal (NS) or high salt diet (HS) for five weeks. An additional group of DS rats was pretreated with puerarin and NS for 10 days, then switched to HS plus puerarin for five weeks. HS for five weeks increased systolic blood pressure (SBP), cardiac hypertrophy and fibrosis, and aortic hypertrophy with increased the expression of phosphor-ERK1/2 in the aorta and heart; puerarin attenuated cardiac and aortic hypertrophy, cardiac fibrosis and phosphor-ERK1/2 with a mild reduction in SBP. Hypertensive rats also manifested impairment of acetylcholine- and insulin-mediated vasorelaxation and insulin-mediated Akt and eNOS phosphorylation associated with the activation of NF[Formula: see text]B/TNF[Formula: see text]/JNK pathway. Puerarin improved acetylcholine- and insulin-mediated vasorelaxation and insulin-stimulated Akt/NO signaling with the inhibition of the NF[Formula: see text]B inflammatory pathway. Our results demonstrated that in salt-sensitive hypertension, puerarin improved vascular insulin action with cardiovascular beneficial effects. Our results found that the underlying mechanisms may involve its inhibition of NF[Formula: see text]B/JNK and ERK1/2 pathway. These results suggest that puerarin could be used as a new antihypertensive agent to expand our armamentarium for the prevention and treatment of end-organ damage in individuals with hypertension and metabolic diseases.
- Subjects :
- Male
0301 basic medicine
Systole
Cardiac fibrosis
medicine.medical_treatment
Vasodilation
Vascular Remodeling
Pharmacology
Muscle hypertrophy
03 medical and health sciences
chemistry.chemical_compound
Insulin resistance
Puerarin
Genetic model
medicine
Animals
Sodium Chloride, Dietary
Ventricular remodeling
Antihypertensive Agents
Aorta
Rats, Inbred Dahl
Ventricular Remodeling
business.industry
Myocardium
Insulin
Hypertrophy
General Medicine
medicine.disease
Fibrosis
Isoflavones
Disease Models, Animal
Pueraria
030104 developmental biology
Complementary and alternative medicine
chemistry
Hypertension
Insulin Resistance
business
Phytotherapy
Subjects
Details
- ISSN :
- 17936853 and 0192415X
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- The American Journal of Chinese Medicine
- Accession number :
- edsair.doi.dedup.....9bd65244ed68d8bb9d282f3b564f33f3