Overview
Corticosteroid 11-reductase deficiency is not directly addressed in the provided abstracts. The abstracts focus on methylenetetrahydrofolate reductase (MTHFR) deficiency, which involves impaired metabolism of homocysteine and methionine, leading to hyperhomocysteinemia and associated neurological issues 1.Diagnosis
Clinical Presentation: Often diagnosed in infancy due to neurological abnormalities; can present later with complications like pulmonary embolism 1.
Genetic Testing: Molecular analysis of the MTHFR gene to identify mutations (missense, exon skipping, single nucleotide polymorphisms) 1.
Biochemical Markers: Elevated homocysteine levels, homocysteinuria, and low methionine levels 1.Management
Dietary Supplementation: Folic acid supplementation to manage methylfolate deficiency 1.
Symptomatic Treatment: Address specific complications such as thromboembolic events with appropriate anticoagulation therapy 1.Special Populations
Pediatrics: Early diagnosis crucial due to neurological development concerns 1.
Comorbidities: Management of thromboembolic events in adults with undiagnosed MTHFR deficiency requires careful monitoring and intervention 1.Key Recommendations
Perform genetic testing of MTHFR gene in patients with unexplained hyperhomocysteinemia and neurological symptoms (Evidence: Moderate 1).
Initiate folic acid supplementation for confirmed MTHFR deficiency to manage biochemical abnormalities (Evidence: Moderate 1).
Consider thromboembolic risk assessment and appropriate anticoagulation in adults with undiagnosed MTHFR deficiency presenting with thrombotic events (Evidence: Weak 1).References
1 Tonetti C, Ruivard M, Rieu V, Zittoun J, Giraudier S. Severe methylenetetrahydrofolate reductase deficiency revealed by a pulmonary embolism in a young adult. British journal of haematology 2002. link