3,4-dihydroxybenzoic acid is an organic acid belonging to water-soluble phenolic acids, which is white to brown crystalline powder on the outside. It naturally exists in a variety of vegetables, fruits and traditional Chinese medicine, and plays a very important role in the medical field, especially in the prevention of arteriosclerosis. It can play a good inhibitory effect. Middle-aged and elderly people are the main groups of patients with atherosclerosis, and they have a high probability of atherosclerosis. Therefore, after consulting doctors, some foods containing 3,4-dihydroxybenzoic acid can be consumed in appropriate amount.
3,4-dihydroxybenzoic acid has an inhibitory effect not only on arteriosclerosis, but also on our hearts and peripheral blood vessels. Generally, intravenously administered 3,4-dihydroxybenzoic acid will lower coronary resistance for half an hour and return to original levels about an hour later, during which time blood pressure will rise slightly throughout the body. In animal experiments, the mixture of 3,4-dihydroxybenzoic acid and protocatechuic aldehyde can slowly and mildly increase the pressure and dilate the blood vessels of lower limbs, but 3, 4-Dihydroxybenzoic acid alone has no obvious dilation of blood vessels of hind limbs.
