MiR-100 rs1834306 A>G Increases Biliary Atresia Risk in Southern Han Chinese Children

Area of Science:

• Genetics
• Pediatric Gastroenterology
• Molecular Biology

Background:

• Biliary atresia (BA) is a severe pediatric cholestatic liver disease with potential genetic influences.
• MicroRNA-100 (miR-100) regulates critical cellular processes including apoptosis, proliferation, and inflammation.
• Single-nucleotide polymorphisms (SNPs) in miR-100 have been associated with altered disease susceptibility.

Purpose of the Study:

• To investigate the association between the miR-100 gene polymorphism (rs1834306 A>G) and susceptibility to biliary atresia in a Chinese population.
• To determine if the rs1834306 A>G variant confers an increased risk for developing biliary atresia.

Main Methods:

• A case-control retrospective study design was employed.
• The study included 484 Chinese patients diagnosed with biliary atresia and 1445 matched control subjects.
• Genotyping for the rs1834306 A>G polymorphism in the miR-100 gene was performed.

Main Results:

• The rs1834306 A>G polymorphism in miR-100 was significantly correlated with an elevated risk of biliary atresia.
• Specifically, the GG genotype showed a higher risk compared to the AA genotype (adjusted OR = 1.44, 95% CI = 1.02-2.03, p = 0.041).
• The GG genotype also indicated increased risk compared to combined AA/AG genotypes (adjusted OR = 1.39, 95% CI = 1.02-1.89, p = 0.036).

Conclusions:

• The rs1834306 A>G polymorphism within the miR-100 gene is associated with an increased risk of biliary atresia.
• This specific genetic variation contributes to the susceptibility of developing biliary atresia in the studied population.