Journal
NUTRIENTS
Volume 13, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/nu13082608
Keywords
p300; curcumin; hypertension; hypertrophy; LVH
Categories
Funding
- Japan Science and Technology Agency [24890191, 15K09108, 26460071]
- Takeda Science Foundation
- Cardiovascular Research Fund
- Japan Heart Foundation Research Grant
- Grants-in-Aid for Scientific Research [26460071, 15K09108, 24890191] Funding Source: KAKEN
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Curcumin, a p300 histone acetyltransferase (HAT) inhibitor, has been found to prevent hypertension-induced left ventricular hypertrophy (LVH) development, without affecting blood pressure and systolic function.
We found that curcumin, a p300 histone acetyltransferase (HAT) inhibitor, prevents cardiac hypertrophy and systolic dysfunction at the stage of chronic heart failure in Dahl salt-sensitive rats (DS). It is unclear whether curcumin suppresses the development of hypertension-induced left ventricular hypertrophy (LVH) with a preserved ejection fraction. Therefore, in this study, we randomized DS (n = 16) and Dahl salt-resistant (DR) rats (n = 10) at 6 weeks of age to either curcumin or vehicle groups. These rats were fed a high-salt diet and orally administrated with 50 mg/kg/d curcumin or its vehicle for 6 weeks. Both curcumin and vehicle treatment groups exhibited similar degrees of high-salt diet-induced hypertension in DS rats. Curcumin significantly decreased hypertension-induced increase in posterior wall thickness and LV mass index, without affecting the systolic function. It also significantly reduced hypertension-induced increases in myocardial cell diameter, perivascular fibrosis and transcriptions of the hypertrophy-response gene. Moreover, it significantly attenuated the acetylation levels of GATA4 in the hearts of DS rats. A p300 HAT inhibitor, curcumin, suppresses the development of hypertension-induced LVH, without affecting blood pressure and systolic function. Therefore, curcumin may be used for the prevention of development of LVH in patients with hypertension.
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