期刊
NUTRIENTS
卷 15, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/nu15173691
关键词
hypertension; aged black garlic; blood pressure; s-allyl-cysteine
This study validates the antihypertensive effects of an optimized extract of aged black garlic with low doses of S-allyl-cysteine (SAC) in a Grade I hypertensive population. The results show a reduction in blood pressure, an increase in nitric oxide and antioxidant capacity, and a decrease in uric acid levels and ACE activity. No changes in endothelial function and inflammatory cytokines were observed.
The use of garlic (Allium sativum) for treating arterial hypertension has been recognized as effective for several decades. However, tolerance to treatment is low, and several technological modifications have been developed to improve its tolerability, such as the aging process at controlled temperature and humidity. This study aims to validate the antihypertensive effects of an optimized extract of aged black garlic with low doses of s-allyl-cysteine (SAC) in a Grade I hypertensive population with drug treatment. A randomized, triple-blind, placebo-controlled parallel trial was developed, where a daily supplementation with 0.25 mg/day of SAC for 12 weeks was performed. A reduction in systolic and diastolic blood pressure of 1.8 mmHg (0.7 to 4.1 95% CI) and 1.5 mmHg (0.3 to 3.0 95% CI), respectively, was observed. Similarly, an increase in blood nitric oxide (10.3 & mu;M, 1.1 to 19.5 95% CI) and antioxidant capacity (7 x 10-3 & mu;M TE/min, (1.2 to 13 x 10-3 95% CI) and a reduction in uric acid levels (-0.3 mg/dL, -0.5 to -0.001 95% CI) and ACE activity (-9.3 U/L; -18.4 to -0.4 95% CI) were observed. No changes in endothelial function and inflammatory cytokines were observed. It was concluded that low-dose SAC supplementation in an optimized black-garlic extract allows for an extra-significant reduction in blood pressure in a Grade I hypertensive population receiving drug treatment.
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