> The study, published Wednesday in the New England Journal of Medicine, included 800 adults with a severe form of liver disease known as metabolic dysfunction-associated steatohepatitis, or MASH. People develop MASH after fat builds up in the liver, which can lead to inflammation, cell damage and scarring. The condition, which affects nearly 15 million adults in the United States alone, is one of the most common reasons for liver transplants nationwide. It is closely linked with obesity and Type 2 diabetes, both of which are also on the rise.