Phenylketonuria (PKU) and alkaptonuria (AKU) are both inherited genetic disorders that affect an individual’s metabolic processes.
PKU is a disorder in which the body is unable to metabolize the amino acid phenylalanine. This leads to an accumulation of phenylalanine in the body, which can cause severe mental and physical health issues. Symptoms of PKU may include seizures, developmental delays, intellectual disability, behavioral issues, and other neurological problems. Treatment for PKU includes a strict diet low in phenylalanine, as well as regular monitoring of blood phenylalanine levels.
AKU, on the other hand, is a disorder in which the body is unable to properly break down the amino acid tyrosine. This leads to a build-up of homogentisic acid in the body, which can cause a range of symptoms, including joint and bone pain, arthritis, discoloration of joints and other body parts, and bladder stones. Treatment for AKU includes a low-tyrosine diet, as well as medications to reduce the amount of homogentisic acid in the body.
Overall, the main difference between PKU and AKU is the type of amino acid that is affected by each disorder. While PKU affects the metabolism of phenylalanine, AKU affects the metabolism of tyrosine. Furthermore, each disorder has different symptoms and treatments.