No association between gluten sensitivity and amyotrophic lateral sclerosis

Area of Science:

• Neurology
• Immunology
• Gastroenterology

Background:

• Amyotrophic Lateral Sclerosis (ALS) is a progressive neurodegenerative disease.
• Gluten sensitivity (GS) and celiac disease (CD) are immune-mediated conditions triggered by gluten.
• A potential link between GS/CD and ALS has been hypothesized but not well-established.

Purpose of the Study:

• To investigate the association between gluten-related disorders and ALS etiology.
• To examine serological markers for gluten sensitivity in ALS patients.
• To analyze genetic correlations and HLA allele frequencies between ALS and CD.

Main Methods:

• A population-based case-control study compared antibody levels (TG6, TG2, EMA) in ALS patients and controls.
• Questionnaire data assessed CD diagnosis and gluten-free diet (GFD) adherence.
• Genome-wide association studies analyzed genetic correlation and HLA allele frequencies between ALS and CD.

Main Results:

• No significant differences in TG6 antibody concentrations, CD prevalence, or GFD adherence were found between ALS patients and controls.
• Only one patient exhibited antibodies and had typical ALS without GS symptoms.
• Genetic analysis revealed no correlation between CD and ALS, and similar HLA allele frequencies.

Conclusions:

• There is no serological evidence for gluten-related antibodies in ALS etiology.
• No association was observed between CD and ALS in medical history or genetic data.
• A role for GFD in ALS treatment appears unlikely based on current findings.