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Published on: November 28, 2025
[Glutaric aciduria type 1: clinical presentations, diagnostics and treatment.]
S V Mikhaĭlova1, E Iu Zakharova, M Iu Bobylova
1Kafedra nervnykh bolezneĭ pediatricheskogo fakul'teta Gosudarstvennogo obrazovatel'nogo uchrezhdeniia vysshego professional'nogo obrazovaniia; Rossiĭskiĭ gosudarstvennyĭ meditsinskiĭ universitet Ministerstva zdravookhraneniia RF, Moskva; Rossiĭskaia detskaia klinicheskaia bol'nitsa, Moskva; GU Mediko-geneticheskiĭ nauchnyĭ tsentr, Moskva.
Insights
Glutaric aciduria type I is a rare neurometabolic disorder affecting infants, causing basal ganglia damage and movement issues. Early diagnosis via mass spectrometry and treatment with dietary changes are crucial.
Area of Science:
- Neurology
- Metabolic Disorders
- Genetics
Background:
- Glutaric aciduria type I (GA-I) is a rare, inherited neurometabolic disease.
- It typically manifests in the first year of life, causing progressive basal ganglia damage.
- This damage leads to severe extrapyramidal movement disorders.
Purpose of the Study:
- To report the first cases of Glutaric aciduria type I in the Russian population.
- To compare clinical observations with existing literature data.
- To highlight diagnostic and treatment strategies for GA-I.
Main Methods:
- Clinical case observations.
- Urine and blood sample analysis using tandem mass spectrometry and gas chromatography.
- Literature review and data comparison.
Main Results:
- GA-I cases in the Russian population were identified and described.
- The disease often presents after infections with symptoms like seizures, vomiting, and coma.
- Neurological complications include dystonias, dyskinesias, feeding difficulties, speech delay, and developmental delays.
Conclusions:
- Glutaric aciduria type I requires prompt diagnosis through biochemical testing.
- Management involves dietary protein restriction and carnitine supplementation.
- Early intervention is critical to mitigate severe neurological sequelae.
Abstract:
Glutaric aciduria type I is a rare autosomic recessive neurometabolic disease, which develops in the first year of life and is characterized by progressive extrapyramidal disorders as a result of the basal ganglia damage. We describe first cases of this disease in Russian population. The clinical observations are compared to the literature data. The disease usually develops after infections and features by seizures, vomiting, metabolic acidosis and deprivation of consciousness up to coma. These crises lead to the development of necroses of the basal ganglia that results in dystonias, dyskinesias and choreoatethosis. The secondary complications of the disease are difficulties with feeding, speech delay, chronic aspiration syndrome and severe delay of movement development. Diagnostics of the disease is based on urine and blood tests using methods of tandem mass spectrometry and gas chromatography. Treatment is based on dietary lysine or protein restriction and supplementation with carnitine. The data on the treatment of this disease are presented.
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Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:

