Research Article

Polymorphisms in the Tumor Necrosis Factor Receptor Genes Affect the Expression Levels of Membrane-Bound Type I and Type II Receptors

Table 4

Frequency of genotypes combinations of TNFRI and TNFRII in patients with rheumatoid arthritis and healthy individuals.

Genotypes
TNFRI  
−609
Genotypes
TNFRII  
−3609
Frequency of combination in RA,
%, (n)
Frequency of combination in control
%, (n)

GTCT 25.8 (110)24.2 (36)
GTCC10.6 (45)*22.1 (33)
GGCT22.5 (96)16.8 (25)
GGCC12.9 (55)9.4 (14)
TTCT7.0 (30)9.4 (14)
GTTT7.3 (31)6 (9)
GGTT6.1 (26)4.7 (7)
TTCC4.9 (21)4 (6)
TTTT2.8 (12)3.4 (5)

Statistical significant difference, .