Lipid Metabolism and Cardiometabolic Disease

Metabolic diseases such as diabetes, steatohepatitis, and coronary artery disease result from the delivery of nutrients that exceed a tissue’s energetic needs or storage capacity. The excess nutrients give rise to deleterious lipid species that impair cellular function. Summers and colleagues found that ceramides, a class of sphingolipids, alter the metabolism of liver and adipose tissue in a way that gives rise to cardiometabolic disease. Continue reading → Lipid Metabolism and Cardiometabolic Disease

Biological Consequences of Reduced Energy Flux and Inefficient Energy Generation

Energy transfer processes are never perfectly efficient. Funai and colleagues have discovered that the degree of inefficiency in cellular energy exchange, particularly during oxidative phosphorylation, has important biological implications. Continue reading → Biological Consequences of Reduced Energy Flux and Inefficient Energy Generation