An infant patient was found to have difficulty in absorbing fats and analysis found that his intestinal cells were full of fat droplets and contained excess B-48. No chylomicrons were present in the serum. People are very concerned about their blood cholesterol levels these days. Name two drugs with separate mechanisms of action that are used to lower blood cholesterol. Explain briefly how each works.
Some people feel all cholesterol is bad.
Name three different positive functions that cholesterol provides. When oxidizing certain amino acids for energy, muscle releases considerable quantities of glutamine and alanine. Write reactions that show how the nitrogen of alanine can be converted into intermediates that are used directly by the urea cycle.