Causes effects signs and symptoms and treatment of phenylketonuria pku
Amino acids are the building blocks of protein. Excessive levels of phenylalanine tend to decrease the levels of other LNAAs in the brain. Palynziq is manufactured by BioMarin Pharmaceutical Inc. All studies receiving U. A doctor will discuss this option if it is appropriate in a child's care plan.
Phenylketonuria PKU is a rare genetic inherited disorder that can cause abnormal mental and physical development if not detected promptly and treated appropriately. The disease is not detectable by physical examination at that time, because no damage has yet been done.
PKU prevents phenylalanine from turning into melanin. PKU testing Newborns in the U. Maintain a positive food attitude. To be as accurate as possible, measure the portions of your food using standard measuring cups and spoons and a kitchen scale that reads in grams. Infants may still be breastfed to provide all of the benefits of breastmilk, but the quantity must also be monitored and supplementation for missing nutrients will be required. Levels of dopamine can be used to distinguish between these two types. The blood sample is usually taken by a heel prick , typically performed 2—7 days after birth. In most cases, a repeat test should be done at approximately two weeks of age to verify the initial test and uncover any phenylketonuria that was initially missed. Also, try to avoid making separate meals that single out a child with PKU. Parents and those affected with PKU should always speak with their doctor or healthcare provider to work out a personal plan of care, as well as what the risk factors are for PKU complications. Food diaries or computer programs are available that list the amount of phenylalanine in baby foods, solid foods, PKU formulas, and common baking and cooking ingredients. Treated people may have no detectable physical, neurological, or developmental problems at all.
InKuvan sapropterin hydrochloride was approved by the U. Many PKU patients have their highest Phe levels after a period of fasting such as overnightbecause fasting triggers catabolism. A person with PKU does not have enough of the specific enzyme that breaks down the amino acid phenylalanine.
Instead, make one meal for the whole family, even if the child with PKU can't eat everything. Plan ahead, so there's always a PKU-friendly food option.
Untreated individuals may have a musty or mouse-like odor as a side effect of excess phenylalanine in the body. The risk is the same for males and females. As a result, all women with PKU who have stopped treatment should resume treatment before conception and continue on it throughout pregnancy, managed by a metabolic geneticist and dietician. The mothers of children with PKU should discuss breast-feeding with their healthcare provider. Children with classic PKU tend to have lighter skin and hair than unaffected family members and are also likely to have skin disorders such as eczema. Diet[ edit ] People who follow the prescribed dietary treatment from birth may have no symptoms. These disorders are usually passed on by two carriers.
Because phenylalanine occurs in practically all natural proteins, it is impossible to adequately restrict the diet using natural foods alone without compromising health.
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