Epilepsy and Neurology in Belgium: Sugar, GABA/Glutamate and Ginger (2025)

Epidemiology: Epilepsy in Belgium

• ~60,000 Belgians with epilepsy (Belgian League Against Epilepsy)
• ~400 new cases/100,000 inhabitants/year
• 30% of epileptics have drug-resistant epilepsy (>2 ineffective AEDs)
• Sudden unexpected death in epilepsy (SUDEP): 1/1,000 epileptics/year
• ketogenic diet-shot-inti-regime-cetogene">Ketogenic diet recognized as adjuvant treatment → direct link between sugar and epilepsy

Molecular mechanisms: sugar, GABA, and glutamate

1. GABA/Glutamate Balance and Hyperglycemia

Epilepsy results from an excitation/inhibition imbalance:

• GABA (gamma-aminobutyric acid) → principal neuronal inhibitor → GABAa → Cl⁻ influx → hyperpolarization
• Glutamate → principal excitatory neurotransmitter → AMPA/NMDA → Na⁺/Ca²⁺ → depolarization
• Hyperglycemia → glycation of GABA receptors (GABAa) → Cl⁻ conductance ↓ → reduced inhibition
• Glucose ↑ → astrocytes → glutamate synthesis ↑ (via transamination) → excitability ↑
• Hyperglycemia → GAD65/GAD67 (glutamate decarboxylase) ↓ → less GABA synthesized
• Fructose → ginger uric acid → xanthine oxidase → ROS → GABAa oxidation → inhibition ↓

2. Neuronal NF-κB and epileptic neuroinflammation

• Epileptic seizure → glutamate ↑ → NMDA-R → Ca²⁺ → CaMKII → neuronal NF-κB
• NF-κB → COX-2 → PGE2 → EP2 → neuronal excitability ↑ → vicious cycle (status epilepticus)
• NF-κB → IL-1β → neuronal IL-1R1 receptors → NF-κB amplification → hyperexcitability
• NF-κB → microglia → TNF-α → AMPA-R expression ↑ → synaptic excitability ↑
• Sugar → systemic NF-κB → BBB crossing → pro-epileptic neuroinflammation

3. Blood-Brain Barrier (BBB) and Epilepsy

• Repeated seizures → endothelial NF-κB BBB → VEGF ↑, claudin/occludin ↓ → permeable BBB
• Permeable BBB → albumin, LPS, IgG → astrocytes → TGF-β1 → hyperexcitability ("albumin hypothesis")
• Sugar → AGE → endothelial RAGE → NF-κB → BBB weakening
• Ginger → endothelial NF-κB ↓ → BBB protection → fewer pro-epileptic substrates

4. Ketogenic Diet and Ginger: Mechanistic Convergence

• Ketogenic diet (low in carbohydrates) → ketone bodies → mitochondrial ATP ↑ → GABA synthesis ↑
• Ketogenic diet → NLRP3 ↓ → IL-1β ↓ → anti-epileptic (2019 Ridler study)
• Ginger → AMPK → PGC-1α → mitochondrial efficiency ↑ → sustained GABA synthesis
• Ginger → NLRP3 ↓ → IL-1β ↓ → convergence with ketogenic mechanism
• INTI 1.19g sugar = compatible with ketogenic/low-carb epileptic diet

⚠️ Ginger and antiepileptic interactions

• Valproate (Depakine): ginger slightly inhibits CYP2C9 → potential increase in valproate concentrations → risk of liver-protection-hepatique-nash">hepatic toxicity → close monitoring
• Phenobarbital, phenytoin: CYP inducers — theoretical interaction possible
• Carbamazepine: no major documented interaction
• Levetiracetam, lamotrigine, topiramate: no known interaction
• MANDATORY: inform your neurologist before taking concentrated ginger