Propionic acidemia

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Propionic acidemia
Classification & external resources
Propionic acid
ICD-10 E71.1
ICD-9 270.3
OMIM 606054
DiseasesDB 29673 29904
eMedicine ped/1906 

Propionic acidemia is an inherited disorder of inborn error of intermediary metabolism that may present in the early neonatal period with progressive encephalopathy. Death can occur at anytime due to secondary hyperammonemia, infection due to immune system suppression, cardiomyopathy, or basal ganglial stroke.

Contents

Propionic acidemia is inherited in an autosomal recessive pattern.
Propionic acidemia is inherited in an autosomal recessive pattern.

Propionic acidemia is inherited in an autosomal recessive pattern and occurs in about 1 in 100,000 live births in the United States. The condition appears to be more common in Saudi Arabia with a frequency of 1 in 2,000 to 5,000 people.

Individuals with propionic acidemia are unable to process certain amino acids, which make up protein, and lipids properly. The condition, which usually appears in early infancy, is characterized by poor feeding, vomiting, weak muscle tone (hypotonia), seizures, and lethargy. The effects of propionic acidemia can be life-threatening.

Mutations in the PCCA and PCCB genes cause propionic acidemia. The PCCA and PCCB genes make protein subunits that come together to form an enzyme called propionyl-CoA carboxylase (EC 6.4.1.3). This enzyme is responsible for one step in the breakdown of several amino acids, certain lipids, and cholesterol. Mutations in the PCCA or PCCB gene disrupt the function of the enzyme, preventing these molecules from being broken down. As a result, a substance called propionyl-CoA, propionic acid and other potentially toxic compounds can accumulate, causing the signs and symptoms of propionic acidemia.

v • d • e
Metabolic pathology (E70-90)
Amino acid Phenylketonuria - Alkaptonuria - Ochronosis - Tyrosinemia - Maple syrup urine disease - Propionic acidemia - Methylmalonic acidemia - Isovaleric acidemia - Primary carnitine deficiency - Cystinuria - Cystinosis - Hartnup disease - Homocystinuria - Citrullinemia - Hyperammonemia - Glutaric acidemia type 1
Carbohydrate Lactose intolerance - Glycogen storage disease (type I, type II, type III, type IV, type V, type VI), Fructose intolerance, Galactosemia
Lipid Lipid storage disorders Sphingolipidoses: Gangliosidosis - GM2 gangliosidoses (Sandhoff disease, Tay-Sachs disease) - GM1 gangliosidoses - Mucolipidosis type IV - Gaucher's disease - Niemann-Pick disease - Farber disease - Fabry's disease - Metachromatic leukodystrophy - Krabbe disease

Neuronal ceroid lipofuscinosis (Batten disease) - Cerebrotendineous xanthomatosis - Cholesteryl ester storage disease (Wolman disease)

Hyperlipidemia - Hypercholesterolemia - Familial hypercholesterolemia - Xanthoma - Combined hyperlipidemia - Lecithin cholesterol acyltransferase deficiency - Tangier disease - Abetalipoproteinemia
Mineral Cu Wilson's disease/Menkes disease - Fe Haemochromatosis - Zn Acrodermatitis enteropathica - PO43− Hypophosphatemia/Hypophosphatasia - Mg2+ Hypermagnesemia/Hypomagnesemia - Ca2+ Hypercalcaemia/Hypocalcaemia/Disorders of calcium metabolism
Fluid, electrolyte and acid-base balance Electrolyte disturbance - Na+ Hypernatremia/Hyponatremia - Acidosis (Metabolic, Respiratory, Lactic) - Alkalosis (Metabolic, Respiratory) - Mixed disorder of acid-base balance - H2O Dehydration/Hypervolemia - K+ Hypokalemia/Hyperkalemia - Cl− Hyperchloremia/Hypochloremia
Porphyrin and bilirubin Acatalasia - Gilbert's syndrome - Crigler-Najjar syndrome - Dubin-Johnson syndrome - Rotor syndrome - Porphyria (Acute intermittent porphyria, Gunther's disease, Porphyria cutanea tarda, Erythropoietic protoporphyria, Hepatoerythropoietic porphyria, Hereditary coproporphyria, Variegate porphyria)
Glycosaminoglycan Mucopolysaccharidosis - Hurler syndrome - Hunter syndrome - Sanfilippo syndrome - Morquio syndrome
Glycoprotein I-cell disease - Pseudo-Hurler polydystrophy - Aspartylglucosaminuria - Fucosidosis - Alpha-mannosidosis - Sialidosis
Other Alpha 1-antitrypsin deficiency - Cystic fibrosis - Familial Mediterranean fever - Lesch-Nyhan syndrome
Retrieved from "http://en.wikipedia.org../../../p/r/o/Propionic_acidemia.html"
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