sulphated polysaccharide

sulphated polysaccharide

Any of a family of antioxidants—e.g., carrageenan, isolated from seaweed, which have therapeutic potential in cyclosporin A-induced hepatotoxicity in rats by reducing lipid peroxidation, and increasing ATPase activity and in treating HIV infection*. 
*By preventing the interaction of epithelial cells and the release of HIV from infected lymphocytes, by coating the cells and virus with a negative charge, making the cells mutually repulsive.