ALTERNATE PATHWAY. “A similar example exists with nitrogen repurposing of ammonia waste that was reported to be recycled into central amino acid metabolism through the enzymatic activity of glutamate dehydrogenase in breast cancer cells.”
https://www.nature.com/articles/s41591-018-0271-8?fbclid=IwAR01C2Z4J5lxVYDLhxIb9dPb3fhNSZSxwimZvhHaJ4n3-nVPpkt2PNqoukk