The norepinephrine transporter gene is a candidate gene for panic disorder

Area of Science:

• Neuroscience
• Genetics
• Psychiatry

Background:

• Panic disorder (PD) is a prevalent anxiety disorder with a significant genetic component.
• Evidence suggests the norepinephrine system plays a crucial role in PD pathogenesis.
• The norepinephrine transporter (NET) regulates norepinephrine levels and is encoded by the SLC6A2 gene.

Purpose of the Study:

• To investigate the association between genetic variants within the NET gene and panic disorder.
• To identify specific NET gene polymorphisms that may confer susceptibility to PD.

Main Methods:

• A case-control study involving 449 PD patients and 279 controls.
• Genotyping of 29 single nucleotide polymorphisms (SNPs) across the NET gene region using the Sequenom platform.
• Statistical analysis using PLINK and COMBASSOC for allelic, haplotypic, and gene-wise association testing.

Main Results:

• Seven SNPs located in the 5' region of the NET gene showed a significant association with PD.
• The NET gene demonstrated overall significant evidence for association with panic disorder (P = 0.000035).

Conclusions:

• The findings suggest that the NET gene is a potential susceptibility gene for panic disorder.
• Genetic variations in NET may contribute to the development of PD.
• Further research into NET's role in PD pathogenesis is warranted.