Background: Arginases catalyze the last step in the urea cycle. Hyperargininemia. a rare autosomal-recessive disorder of the urea cycle. presents after the first year of age with regression of milestones and evolves gradually into progressive spastic quadriplegia and cognitive dysfunction. https://www.alarecre.com/Wizarding-World-Harry-Potter-Scar-and-Glasses-iPhone-13-Pro-MagSafe-Case-p90262/