TYMP and phenylketonuria: They include erythrocyte loaded with dexamethasone sodium phosphate (EryDex) for the treatment of ataxia telangiectasia [45], erythrocyte-encapsulated thymidine phosphorylase (EE-TP) for the treatment of mitochondrial neurogastrointestinal encephalomyopathy [46], and erythrocyte-encapsulated phenylalanine hydroxylase (Ery-PAL) for the genetic disorder phenylketonuria [47].