Frontiers Fatty acid oxidation in immune function Fatty acid oxidation The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation Targeting Skeletal Muscle Dysfunction With L Carnitine for the Treatment of Patients With Chronic Obstructive Pulmonary Disease In Vivo Role of Carnitine Shuttle System in the Active Transport of Fatty Acyl Coa into the mitochondrial Fatty acid transportation mechanism in cell, starting with the activation of fatty acid by carnitine palmitoyl transferase 1 to acyl coA, which now attaches itself with the translocase to be transported across