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Resveratrol promotes blood circulation in brain and improves cognition
Aug 07, 2018

A study released recently in the Nutrition & Intermediary Metabolism magazine found that resveratrol is beneficial for patients with type 2 diabetes to dilate blood vessels and promote blood circulation in the brain.


In this study, researchers from Newcastle University in Australia and Swinburne University of Technology determined the optimal dose of resveratrol to help improve the vasodilator response, especially in the brain of patients with type 2 diabetes. Existing studies suggest that patients with type 2 diabetes are usually accompanied by endothelial dysfunction and subclinical cognitive impairment.



Previous research conducted by this research team has demonstrated that resveratrol improves blood vessel function in the blood circulation system. Based on this, researchers concluded that resveratrol can also promote blood circulation in the brain. 


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The new study of this item recruited 36 patients with type 2 diabetes between the ages of 40 and 80 years, and randomly used 75 mg, 150 mg, 300 mg of synthetic trans-resveratrol, or placebo, once a week. The researchers used a cranial Doppler ultrasonography to examine participants' vasodilatory responses to hypercapnic stimulation. Methods of hypercapnic stimulation include breathing high-carbon gases (eg, 95% O2+5% CO2) for three minutes, 45 minutes before and after the use of supplements or placebo.



The test found that the central arterial blood vessels in the right and left brains of each resveratrol supplement group showed vasodilatation response, and the 75 mg dose group had the best effect. Previous studies have demonstrated that enhancing vasodilatory responses is effective in relieving endothelial dysfunction and subclinical cognitive impairment.