# Phenylketonuria (PKU) – Information Card
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Who / What
Phenylketonuria (PKU) is an **inborn error of metabolism** characterized by the body’s inability to properly metabolize the amino acid phenylalanine. This genetic disorder disrupts normal metabolic processes, leading to elevated levels of phenylalanine in the bloodstream if untreated.
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Background & History
While PKU itself is a genetic condition with no specific founder or organization, its recognition and management have evolved significantly over time. Early observations linked symptoms like intellectual disability and behavioral issues to phenylalanine accumulation, though formal identification as an inherited metabolic disorder emerged later. The discovery of dietary intervention in the mid-20th century revolutionized treatment, reducing complications by restricting phenylalanine intake.
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Why Notable
PKU remains a critical focus due to its profound impact on affected individuals if untreated—leading to severe intellectual disabilities and neurological damage. Its management underscores the importance of early diagnosis and adherence to specialized diets, making it a landmark case in genetic disorders and public health strategies for metabolic diseases.
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In the News
Recent advancements include research into gene therapy and enzyme replacement therapies aimed at mitigating symptoms or curing PKU. Ongoing discussions emphasize global screening programs, ensuring timely detection and intervention, particularly in low-resource settings where diagnosis may lag behind.
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Key Facts
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Links
[Wikipedia – Phenylketonuria](https://en.wikipedia.org/wiki/Phenylketonuria)
