The heart is a remarkable organ responsible for tirelessly pumping blood throughout the body to supply oxygen and nutrients to every tissue. This continuous work demands a substantial amount of energy, making the heart one of the most metabolically active organs in the human body. Myocardial metabolism refers to the intricate biochemical processes that…
Lipoprotein metabolism is the transport of dietary and endogenously derived lipids across different tissues or organs mainly through circulation. Since lipids like triacylglycerol, cholesterol, fatty acids are not soluble in water, their transportation through blood is very difficult. This problem solved by complexing with proteins called apolipoproteins or apoproteins. Together with apoproteins, these lipids are packaged in the form of lipoproteins namely; chylomicron, very low-density lipoprotein [VLDL], low-density lipoprotein [LDL] and high-density lipoprotein [HDL].
Fatty acid oxidation is utilization or catabolism of fatty acids for the purpose of energy in the form of ATP. There are various types of fatty acid oxidation but most important type is the beta oxidation of fatty acids which takes place in the mitochondrial matrix. Please watch the below embedded video in order to understand an overview or introduction of utilization of fatty acids.
Ketogenesis Ketogenesis is the synthesis of ketone bodies. Three are 3 ketone bodies namely, acetoacetate, β-hydroxybutyrate, and acetone. Normally in our body, a very less amount of ketone bodies are present in our blood as the starting material for ketogenesis is acetyl-CoA which enters the TCA cycle. When there is the excess formation of…
More than 80 to 90% of the dietary lipids are triacylglycerols besides a small amount of phospholipids, cholesterol esters, free cholesterol, and free fatty acids. The main site of digestion and absorption of lipids is in the small intestinal lumen. Digestion of lipids in the mouth Although there is a small amount of lipase…