SMP0000173
View Pathway
|
beta-Ketothiolase Deficiency
beta-Ketothiolase Deficiency (2-Methyl-3-Hydroxybutyric Acidemia; Mitochondrial Acetoacetyl-CoA Thiolase Deficiency; MAT Deficiency; T2 Deficiency; 3-KTD Deficiency; 3-Ketothiolase Deficiency) is an autosomal recessive disease caused by a mutation in the HADHB gene which codes for beta-ketathiolase. A deficiency in this enzyme results in accumulation of ammonia and ketone bodies in blood; and 2-methyl-3-hydroxybutyric acid, 2-methylacetoacetic acid, 3-hydroxybutyric acid, tiglylglycine, and ketone bodies in urine. Symptoms include ketosis, seizures, organic acids in urine, and hyperammonemia. Treatment includes a low protein diet and L-carnitine.h3. h2.
|
Disease
|
|
|
SMP0000499
View Pathway
|
beta-Mercaptolactate-Cysteine Disulfiduria
Metcaptolactate-cysteine disulfiduria (MCDU) is an autosomal disorder that leads to the loss of function of the enzyme mercaptopyruvate sulfurtransferase. The condition is characterized by the urinary excretion of large amounts of a sulfur-containing amino acid, which is beta-mercaptolactate-cysteine disulfide. Patients exhibit a low IQ, grand mal seizures, flattened nasal bridge, and an excessively arched palate.
|
Disease
|
|
|
SMP0125612
View Pathway
|
beta-Mercaptolactate-Cysteine Disulfiduria
Metcaptolactate-cysteine disulfiduria (MCDU) is an autosomal disorder that leads to the loss of function of the enzyme mercaptopyruvate sulfurtransferase. The condition is characterized by the urinary excretion of large amounts of a sulfur-containing amino acid, which is beta-mercaptolactate-cysteine disulfide. Patients exhibit a low IQ, grand mal seizures, flattened nasal bridge, and an excessively arched palate.
|
Disease
|
|
|
SMP0000172
View Pathway
|
beta-Ureidopropionase Deficiency
Beta-ureidopropionase deficiency (Beta Alanine-Synthase Deficiency, UPB1, BUP1) is an autosomal recessive disease caused by mutations in the UPB1 gene which codes for beta-ureidopropionase. A deficiency in this enzyme results in accumulation of N-carbamyl-beta-amino acids. Symptoms include hypotonia, dystonic movements, scoliosis, microcephaly, and severe developmental delay.
|
Disease
|
|
|
SMP0125716
View Pathway
|
beta-Ureidopropionase Deficiency
Beta-ureidopropionase deficiency (Beta Alanine-Synthase Deficiency, UPB1, BUP1) is an autosomal recessive disease caused by mutations in the UPB1 gene which codes for beta-ureidopropionase. A deficiency in this enzyme results in accumulation of N-carbamyl-beta-amino acids. Symptoms include hypotonia, dystonic movements, scoliosis, microcephaly, and severe developmental delay.
|
Disease
|
|
|
SMP0000174
View Pathway
|
Biotinidase Deficiency
Biotinidase deficiency (Multiple carboxylase deficiency) is an autosomal recessive disease caused by a mutation in the BTD gene which codes for biotinidase. A deficiency in this enzyme results in accumulation of ammonia and ketone bodies in blood; 3-hydroxyisovaleric acid in plasma, spinal fluid, and urine; hydroxypropionic acid, 2-hydroxybutyric acid, 3-Hydroxybutyric acid, and citric acid in spinal fluid; and 3-methylcrotonylglycine, hydroxypropionic acid, and L and D-lactic acid in urine. Symptoms, which can present from birth into adulthood include hypotonia, ketosis, hyperammonemia, motor retardation, coma, and seborrhoic skin rash. Treatment includes biotin.
|
Disease
|
|
|
SMP0125777
View Pathway
|
Biotinidase Deficiency
Biotinidase deficiency (Multiple carboxylase deficiency) is an autosomal recessive disease caused by a mutation in the BTD gene which codes for biotinidase. A deficiency in this enzyme results in accumulation of ammonia and ketone bodies in blood; 3-hydroxyisovaleric acid in plasma, spinal fluid, and urine; hydroxypropionic acid, 2-hydroxybutyric acid, 3-Hydroxybutyric acid, and citric acid in spinal fluid; and 3-methylcrotonylglycine, hydroxypropionic acid, and L and D-lactic acid in urine. Symptoms, which can present from birth into adulthood include hypotonia, ketosis, hyperammonemia, motor retardation, coma, and seborrhoic skin rash. Treatment includes biotin.
|
Disease
|
|
|
SMP0000583
View Pathway
|
Blue Diaper Syndrome
Blue diaper syndrome is a recessive metabolic disorder that has not yet been determined to be X-linked or autosomal. This syndrome is caused by a mutation in the large neutral amino acids transporter small subunit 1 protein, which allows tryptophan, among other amino acids, to be reabsorbed in the kidneys. The excess tryptophan found in the intestine is digested by bacteria which excrete indole, which can undergo oxidation to produce indigo blue. This is seen in the diapers of infants affected by blue diaper syndrome, due to the increased levels of indole in their urine or feces. Other symptoms can include bacterial infections, damage to various parts of the eye, hypercalcemia, and impaired kidney function due to this. Treatment can include a calcium restricted diet in order to prevent hypercalcemia, and a tryptophan restricted diet to prevent all systems. If bacterial infections are common, antibiotics may be prescribed.
|
Disease
|
|
|
SMP0000175
View Pathway
|
Canavan Disease
Canavan Disease (Canavan-Van Bogaert-Bertrand Disease; Aminoacylase 2 Deficiency; Spongy Degeneration of the Central Nervous System; Aspartoacylase Deficiency; ASP Deficiency; ACY2 Deficiency; ASPA) is a rare autosomal recessive disease caused by a defect in the ASPA gene which codes for aspartoacylase. A deficiency in this enzyme results in accumulation of N-Acetyl-L-aspartic acid in plasma, spinal fluid, and urine. Symptoms, which present at birth, include myclonus, irritability, hypotonia, motor retardation, and poor head control. The neurological complications are due to demyelination of neurons and leukodystrophy. Premature death often results, though lithium citrate can be used as a treatment.
|
Disease
|
|
|
SMP0125779
View Pathway
|
Canavan Disease
Canavan Disease (Canavan-Van Bogaert-Bertrand Disease; Aminoacylase 2 Deficiency; Spongy Degeneration of the Central Nervous System; Aspartoacylase Deficiency; ASP Deficiency; ACY2 Deficiency; ASPA) is a rare autosomal recessive disease caused by a defect in the ASPA gene which codes for aspartoacylase. A deficiency in this enzyme results in accumulation of N-Acetyl-L-aspartic acid in plasma, spinal fluid, and urine. Symptoms, which present at birth, include myclonus, irritability, hypotonia, motor retardation, and poor head control. The neurological complications are due to demyelination of neurons and leukodystrophy. Premature death often results, though lithium citrate can be used as a treatment.
|
Disease
|
|
|