Association between polymorphisms in AXIN1 gene and atrial septal defect

Area of Science:

• Genetics
• Developmental Biology
• Neuroscience

Background:

• AXIN1 is a crucial protein in the Wnt signaling pathway, vital for embryonic development.
• The Wnt signaling pathway plays a significant role in various developmental processes.

Purpose of the Study:

• To determine if variations (polymorphisms) in the AXIN1 gene are associated with an increased risk of developing Autism Spectrum Disorder (ASD).
• Investigating the genetic contribution of AXIN1 to ASD susceptibility.

Main Methods:

• Genotyping of three single nucleotide polymorphisms (SNPs) in AXIN1: rs12921862, rs370681, and rs1805105.
• Utilized polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique.
• Study included 208 individuals with ASD and 302 healthy controls from a Chinese population.

Main Results:

• The 'A' allele of SNP rs12921862 showed a significant association with increased ASD risk (p < 0.0001, OR = 3.096).
• SNP rs370681 was also associated with elevated ASD risk under both codominant (p = 0.043, OR = 1.52) and overdominant models (p = 0.016, OR = 1.57).

Conclusions:

• The specific AXIN1 polymorphisms, rs12921862 and rs370681, may play a role in the susceptibility to Autism Spectrum Disorder.
• These findings suggest a potential genetic link between AXIN1 variations and ASD development.