Research Article

Genetic Investigation of Complement Pathway Genes in Type 2 Diabetic Retinopathy: An Inflammatory Perspective

Table 2

Comparison of genotype and allele frequencies of SERPING1 and C5 polymorphisms in DR patients and DM controls.

SNP IDMinor allele Allele distribution (%)P value Odds ratio (95% CI) Genotype
distribution (%)
P value Odds ratio (95% CI)
DR ()DM () DR
()
DM
()

C1INH (SERPING1)
rs1005511GG137 (23.2)125 (22.7)0.84173/107/15165/95/150.74
A453 (76.8)425 (77.3)0.84
rs3824988CC71 (12.0)57 (10.4)0.37228/63/4220/53/20.43
T519 (88.0)493 (89.6) 0.68

C5
rs12237774TT107 (18.1)109 (19.8)0.47199/85/11175/91/90.34
C483 (81.9)441 (80.2) 0.82
rs2269066TT121 (20.5)120 (21.8)0.59187/95/13165/100/100.41
C469 (79.5)430 (78.2)0.64
rs17611GG210 (35.6)226 (41.1)0.0560.79 (0.62–1.0)117/146/32 100/124/51 0.420.53 (0.33–0.86)
A380 (64.4)324 (58.9)0.009 (0.072)
rs1548782 TT119 (20.2)112 (20.4)0.94191/89/15172/94/90.59
A471 (79.8)438 (79.6)0.28
rs10985126 CC136 (23.1)134 (24.4)0.60170/114/11160/96/190.89
T454 (76.9)416 (75.6)0.089
rs1017119 CC73 (12.4)78 (14.2)0.37225/67/3202/68/50.44
T517 (87.6)472 (85.8)0.49

Data are the number of subjects (% of the total group). DR: diabetic retinopathy; DM: diabetes mellitus; Fisher exact test; value for dominant model; value for recessive model. The genotype distribution was showed as major allele homozygous/heterozygous/minor allele homozygous.