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Updated: Jun 25, 2025

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis
Published on: July 16, 2021
SEROTONIN AND AMYOTROPHIC LATERAL SCLEROSIS.
M Kekenadze1, N Kvirkvelia2, M Beridze3
12Tbilisi State Medical University, Department of Neurology, Georgia; 3UCL, Department of Neuromuscular diseases, Queen square, London, UK.
This study investigated serotonin levels in amyotrophic lateral sclerosis (ALS) patients in Georgia. Lower serotonin was linked to disease progression, suggesting it may be a therapeutic target for ALS.
Area of Science:
- Neurology
- Neuroscience
- Biochemistry
Background:
- Amyotrophic lateral sclerosis (ALS) is characterized by motoneuron degeneration.
- The role of serotonin (5-hydroxytryptamine, 5-HT) in ALS pathogenesis is under investigation.
- Limited data exists on ALS progression and its relationship with serotonin levels.
Purpose of the Study:
- To investigate the relationship between serotonin levels and amyotrophic lateral sclerosis (ALS) in a Georgian patient cohort.
- To explore potential correlations between serotonin levels and ALS clinical presentation, disease duration, and patient demographics.
Main Methods:
- A clinical study involving 60 ALS patients and 20 healthy controls in Georgia.
- Data collection included patient history, brain MRI, electromyography, and serum serotonin level measurements.
- Comparison of serotonin levels across different ALS subtypes (LMN, UMN, bulbar) and disease duration.
Main Results:
- ALS patients exhibited significantly lower serotonin levels compared to controls.
- Lower serotonin levels were observed in patients with longer disease duration (anamnesis).
- Patients with Lower Motor Neuron (LMN) damage showed the most significant decrease in serotonin.
Conclusions:
- Serotonin levels are decreased in patients with ALS.
- Reduced serotonin may correlate with ALS progression and severity.
- Serotonin (5-HT) warrants further investigation as a potential therapeutic target for ALS.
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