Release time：2022-09-24 Click:
What is N-acetylneuraminic acid?
N-acetylneuraminic acid is also known as sialic acid (SA) and ornithic acid. It widely exists in biological tissues and is an important component of glycoproteins, oligosaccharides and glycolipids, usually in the form of glycosides at the end of glycoproteins and glycolipids. With the increase of biological evolution, the content of sialic acid in the organism is increasing, and there is little sialic acid in organisms with low evolution, such as protozoa, annelids, arthropods, etc. Sialic acid is ubiquitous in vertebrates and mammals. The content of sialic acid in the human midbrain is the highest, and the content of sialic acid in the gray matter of the human brain is 15 times that of the liver, lung and other internal organs.