24 Aug 2017 --- A group of researchers at ETH Zurich, Empa and the Norwegian research institute SINTEF are investigating the possibilities of using algae to treat arthritis, based on a polysaccharide, a long-chain sugar molecule, originating from brown algae. When chemically modified, this “alginate” reduces oxidative stress, has an anti-inflammatory effect in cell culture tests and suppresses the immune reaction against cartilage cells, thereby combating the causes of arthritis.