Ppt Biosynthesis-of-fatty-acids-eicosanoids | …
Biosynthesis and metabolism of lipids mediators;
Metabolism1.0 Global and overview maps1.1 Carbohydrate metabolism1.2 Energy metabolism1.3 Lipid metabolism1.4 Nucleotide metabolism1.5 Amino acid metabolism1.6 Metabolism of other amino acids1.7 Glycan biosynthesis and metabolism1.8 Metabolism of cofactors and vitamins1.9 Metabolism of terpenoids and polyketides1.10 Biosynthesis of other secondary metabolites1.11 Xenobiotics biodegradation and metabolism1.12 Chemical structure transformation maps
of enzymes required for lipoxin biosynthesis
Lipids are digested and absorbed with the help of bile salts. Products of lipid digestion aggregate to form mixed micelles and are absorbed into the small intestine. Lipids are transported in the form of lipoproteins. Fatty acids are activated, transported across mitochondrial membrane with the help of carnitine transporter. β -oxidation of saturated fatty acids takes place in the mitochondrial matrix. Similarly oxidation of unsaturated and odd chain fatty acids also take place with additional reactions. Ketone bodies are formed in the liver but they are utilized by extra hepatic tissues. In uncontrolled diabetes mellitus and starvation, excessive ketone bodies are formed, leading to ketosis. Fatty acid biosynthesis takes place in the cytosol of cells. Fat gets deposited in the adipose tissue. Acetyl Coenzyme A is the precursor of fatty acid synthesis as well as cholesterol biosynthesis. Elevation of lipids in blood leads to deposition of cholesterol plaques in the arterial walls leading to atherosclerosis. Prostaglandins and leukotrienes are synthesized from twenty carbon unsaturated fatty acids. Phosphatidic acid is an important intermediate in the synthesis of glycerophospholipids. In sphingolipids, sphingosine is present as an alcohol.