The c.-237_236GA>TT THAP1 sequence variant does not increase risk for primary dystonia

Area of Science:

• Genetics
• Neurology

Background:

• Sequence variants in the THAP1 gene have been linked to primary dystonia.
• THAP1 gene mutations are implicated in the pathogenesis of dystonia.

Purpose of the Study:

• To investigate the association between a specific THAP1 5'-untranslated region variant (c.-237_236GA>TT) and adult-onset primary dystonia in Caucasians.

Main Methods:

• Genotyping of 1,446 Caucasian subjects with adult-onset primary dystonia and 1,520 controls for the THAP1 c.-237_236GA>TT variant.
• Analysis of minor allele frequencies and subgroup analyses by gender and anatomical distribution.
• Assessment of the variant's effect on THAP1 transcript and protein expression levels.

Main Results:

• No statistically significant difference in minor allele frequencies of the THAP1 c.-237_236GA>TT variant between dystonia patients and controls (P=0.202).
• Subgroup analyses and expression level studies did not reveal any significant associations.
• The TT variant did not impact THAP1 transcript or protein expression.

Conclusions:

• The THAP1 c.-237_236GA>TT sequence variant is not associated with an increased risk of adult-onset primary dystonia in the studied Caucasian population.
• These findings suggest that this specific variant does not play a significant role in the etiology of primary dystonia in this demographic.
• Further investigation into other THAP1 variants or genetic factors may be warranted.