What type of study is this?

This is a Animal Study study (also classified as: Quantitative Study).

September 17, 2025

Deuterium MR with a glucose-transporter-1 deficiency syndrome mouse model: ketogenic diet-modulated brain energy metabolism

Puntos clave

The ketogenic diet significantly alters brain metabolic substrates in GLUT1-DS mice compared to a normal diet, indicating a potential treatment approach.
In GLUT1-DS mice, DMI revealed notable changes in glucose and β-hydroxybutyrate levels, linking dietary type to metabolic shifts.
Application of deuterium metabolic imaging provides a translational tool for assessing metabolic dynamics in GLUT1-DS, with potential clinical relevance.
Findings from this study highlight the promise of targeting metabolic pathways in GLUT1-DS for improved treatment efficacy and patient outcomes.

Resumen

Motivation: The ketogenic diet is a first-line clinical treatment for glucose-transporter-1 deficiency syndrome (GLUT1-DS). Goal(s): To examine brain energy metabolism in a mouse model of GLUT1-DS by applying deuterium metabolic imaging (DMI) to mice fed either a normal diet (ND) or ketogenic diet (KD). Approach: Following administration of 6,6-2H2glucose (Glc) or 3,4,4,4-2H4β-hydroxybutyrate (βHB), employ DMI to evaluate GLUT1-DS mice and wild-type (WT) littermates on ND or KD. Results: The KD results in significant changes in levels of substrates Glc and βHB, and downstream metabolites, compared to the ND. Impact: DMI is directly clinically translatable. These results suggest it holds promise for quantification of the metabolic changes in GLUT1-DS patients, thereby relating these changes to the underlying pathophysiology, clinical symptoms and treatment efficacy in individual patients.

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