Polymorphisms in Beta-2 Adrenergic Receptor Gene and Association with Tuberculosis

Area of Science:

• Genetics
• Immunology
• Infectious Diseases

Background:

• Genetic susceptibility plays a role in tuberculosis (TB) development.
• Polymorphisms in immune response genes can influence individual susceptibility to TB.
• The beta-2 adrenergic receptor (ADRB2) gene is a potential candidate for TB risk factors.

Purpose of the Study:

• To investigate the association between specific polymorphisms in the ADRB2 gene (rs1042713 and rs1042714) and tuberculosis.
• To evaluate the role of ADRB2 gene variants as potential risk factors for TB.

Main Methods:

• A case-control study was conducted with 106 pulmonary tuberculosis patients and 88 healthy controls from an Iranian population.
• Genotyping of ADRB2 polymorphisms (rs1042713 Arg16Gly and rs1042714 Gln27Glu) was performed using the PCR-RFLP method.

Main Results:

• Significant differences in the frequency of the rs1042713*G and rs1042714*G alleles were observed between TB patients and healthy controls (P < 0.001 and P = 0.009, respectively).
• The odds ratios indicated that these specific alleles are associated with increased susceptibility to tuberculosis.
• Haplotype analysis did not reveal significant differences between the patient and control groups.

Conclusions:

• This study is the first to report an association between rs1042713 and rs1042714 polymorphisms in the ADRB2 gene and tuberculosis.
• The rs1042713*G and rs1042714*G alleles of the ADRB2 gene may increase an individual's susceptibility to developing tuberculosis.