Mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase deficiency (mitochondrial HMG-CoA synthase deficiency or mHS deficiency, OMIM #605911) is an inborn error of metabolism that affects ketone body synthesis. Acute episodes include vomiting, lethargy, hepatomegaly, hypoglycemia and dicarboxylic aciduria. The diagnosis is difficult due to the relatively unspecific clinical and biochemical prese...

Familial lecithin-cholesterol acyltransferase (LCAT) deficiency is a rare autosomal recessive (AR) disease caused by mutation in the LCAT gene. LCAT enzyme esterifies cholesterol molecules in high-density lipoprotein(HDL) and low density-lipoprotein (LDL) particles. This enzyme deficiency is characterised by progressive corneal opacification, glomerulopathy, mild - moderate haemolytic anaemia a...

Congenital adrenal hyperplasia refers to a group of autosomal recessive disorders caused by a deficiency of an enzyme involved in the synthesis of glucocorticoids. The enzyme deficiency generally leads to a deficiency of cortisol and/or aldosterone production within the adrenal cortex. The lack of glucocorticoids generally leads to elevated levels of plasma corticotropin (ACTH), which often res...

Received April 10, 2003 Abstract Dihydropyrimidine dehydrogenase (DPD) deficiency is an autosomal recessive disorder of pyrimidine catabolism. This enzyme deficiency has a wide phenotypic variability but neurological abnormalities like convulsion, motor developmental delay and mental retardation are common. DPD deficiency is also associated with increased risk of toxicity in patients receiving ...

OBJECTIVE Deficiency of pyruvate dehydrogenase complex (PDHC) is the most common genetic disorder leading to lactic acidosis. PDHC deficiency is genetically heterogenous and most patients have defects in the X-linked E1-α gene but defects in the other components of the complex encoded by PDHB, PDHX, DLAT, DLD genes or in the regulatory enzyme encoded by PDP1 have also been found. Phenylbutyrate...

  Anderson-Fabry disease is a rare inherited X-linked lysosomal storage disease caused by deficiency of the enzyme alpha-galactosidase A. Hereby we report a 39 year old male that presented with proteinuria and edema. Histopathologic, immunofluorescence and ultrastractural examination of renal tissue were in favor  of  Fabry disease in associate with IgA nephropathy. Fabry's disease associated ...

anderson-fabry disease is a rare inherited x-linked lysosomal storage disease caused by deficiency of the enzyme alpha-galactosidase a. hereby we report a 39 year old male that presented with proteinuria and edema. histopathologic, immunofluorescence and ultrastractural examination of renal tissue were in favor  of  fabry disease in associate with iga nephropathy. fabry's disease associated wit...

Background: Glucose-6-phosphate dehydrogenase (G6PD) deficiency is one of the most known enzyme defects in Iran with various genetic mutations. We aimed to study the predisposing factors of hemolysis in children with G6PD deficiency. Methods: This study was done during 2007-2012 in two referral centers of Mofid Children’s Hospital and Baqiyatallah Hospital, Tehran, Iran. The hospital rec...