What happens if PKU is left untreated?
What happens if PKU is left untreated?
Untreated PKU can lead to: Irreversible brain damage and marked intellectual disability beginning within the first few months of life. Neurological problems such as seizures and tremors. Behavioral, emotional and social problems in older children and adults.
Which manifestation is a characteristic feature of untreated PKU?
Untreated infants with PKU tend to have unusually light eye, skin, and hair color due to high phenylalanine levels interfering with production of melanin, a substance that causes pigmentation. They may also have a musty or “mousy” body odor caused by phenyl acetic acid in the urine or sweat.
Can you have undiagnosed PKU?
If a baby is not tested and has undiagnosed PKU, he or she may show signs or symptoms at several months old. Some babies with PKU may seem more drowsy and listless than normal. They may have feeding problems.
What organs are affected by PKU?
A. In a child with PKU, phenylalanine cannot be converted to tyrosine because the phenylalanine hydroxylase enzyme does not work properly. This results in dangerously high levels of phenylalanine that build up in the blood and become toxic to the brain and nervous system.
What happens if you have too much phenylalanine?
Nutrition and healthy eating Phenylalanine can cause intellectual disabilities, brain damage, seizures and other problems in people with PKU . Phenylalanine occurs naturally in many protein-rich foods, such as milk, eggs and meat. Phenylalanine is also sold as a dietary supplement.
How do they test for PKU in adults?
If a child or adult shows symptoms of PKU, such as developmental delays, the doctor will order a blood test to confirm the diagnosis. This test involves taking a sample of blood and analyzing it for the presence of the enzyme needed to break down phenylalanine.
How long is the average life span of a person with PKU?
The average age at death was 55.8 years. Eleven subjects were still alive (seven females and four males). The oldest living male was 79 years of age. The average age of the survivors was 55.7 years.
