Steatotic Liver Disease

Steatotic Liver Disease is a condition where excess fat builds up in the liver, affecting how this vital organ works. The liver is part of the digestive system and helps process nutrients, remove toxins, and produce important proteins. When fat accumulates, it can cause the liver to become inflamed and damaged over time. This can lead to symptoms like fatigue and abdominal discomfort, although many people have no symptoms early on. If untreated, it may progress to more serious liver problems such as cirrhosis or liver failure. The main health impact is on the liver’s ability to function properly, which can affect overall metabolism and health. Managing this condition often involves addressing underlying causes like obesity or diabetes.

Steatotic Liver Disease (SLD) is characterized by the pathological accumulation of hepatic steatosis, defined as fat deposition exceeding 5% of liver weight, primarily due to metabolic dysregulation. It commonly results from insulin resistance, obesity, type 2 diabetes, and dyslipidemia, leading to increased free fatty acid influx and impaired lipid metabolism in hepatocytes. The disease spectrum ranges from simple steatosis to steatohepatitis, which includes inflammation and hepatocellular injury, potentially progressing to fibrosis, cirrhosis, and hepatocellular carcinoma. The condition is a major cause of chronic liver disease worldwide and is associated with increased cardiovascular risk. Histologically, it is marked by macrovesicular fat accumulation, ballooning degeneration, and lobular inflammation. The pathogenesis involves oxidative stress, mitochondrial dysfunction, and inflammatory cytokine release.