Jaws: The Inside Story. The Metabolism of Elasmobranch Fishes

摘要: Abstract Elasmobranchs are of metabolic interest for several reasons, including their primitive evolutionary position, osmotic strategy and low incidence neoplasia. Some aspects the metabolism elasmobranch fishes unique when compared with those other vertebrates. Although many features can be attributed to position (e.g., fewer isoforms enzymes proteins), some appear related unusual solute system (urea methylamines) used by elasmobranchs. The exerts widespread effects, which has an impact on lipids, ketone bodies amino acids structure proteins membranes. Effects urea transport lipid may influence metabolism, reducing extrahepatic catabolism via effects nonesterified fatty acid enhancing a need reliance bodies. Amino elasmobranchs is also heavily influenced continuous synthesis glutamine as nitrogen donor. These in turn, play role cancer. Specifically, reduced availability (an important nutrient rapidly growing cells) coupled levels blood reduces molecules essential tumor growth. This design thus provide marine “systemic” resistance