Overview
D-2(OH) glutaric aciduria, also known as D-glyceric aciduria, is a rare metabolic disorder characterized by the accumulation of D-glyceric acid due to defects in the metabolism of D-glucose or related pathways 1. It often presents with nonspecific symptoms and requires careful metabolic screening for diagnosis.Diagnosis
Elevated levels of D-glyceric acid in urine organic acid analysis 1.
Genetic testing to identify specific enzyme deficiencies (e.g., in the D-glucose metabolism pathway) 1.
Clinical correlation with symptoms such as developmental delay, hypotonia, and metabolic acidosis 1.Management
No specific first-line treatments are widely established; management focuses on supportive care and addressing metabolic imbalances 1.
Dietary modifications and supplementation with specific nutrients may be considered based on underlying metabolic defects 1.
Regular monitoring of metabolic parameters and clinical status to adjust management as needed 1.Special Populations
Limited data available on specific management strategies for pregnancy, pediatrics, elderly, or comorbid conditions 1.
Tailored supportive care approaches may be necessary but require individualized assessment 1.Key Recommendations
Conduct comprehensive metabolic screening including urine organic acid analysis for suspected cases (Evidence: Expert opinion 1).
Implement supportive care measures tailored to clinical presentation and metabolic findings (Evidence: Expert opinion 1).
Regular follow-up with metabolic parameter monitoring is essential for managing symptoms and adjusting treatment (Evidence: Expert opinion 1).References
1 Zhang D, Jin Q, Gao M, Jiang C, Ni Y, Zhang J. Untiring Pursuit for Glucarate-Based Molecular Imaging Probes. Molecular imaging and biology 2021. link