RESUMO
<p><b>OBJECTIVE</b>To assess the association of single nucleotide polymorphisms (SNP) rs547984, rs540782, rs693421 and rs2499601 of Zona Pellucida Glycoprotein 4 (ZP4) gene with primary open-angle glaucoma (POAG) among ethnic Han Chinese from Sichuan Province.</p><p><b>METHODS</b>A dye terminator-based SNaPshot method was used to genotype 336 patients with POAG and 768 healthy controls.</p><p><b>RESULTS</b>No significant difference was detected in allelic frequencies of rs547984, rs540782, rs693421 and rs2499601 between the two groups (P>0.05). Haplotypic analysis showed a significant difference in G-G-A-G haplotype formed by the 4 SNPs between the POAG and the control groups (P<0.05).</p><p><b>CONCLUSION</b>ZP4 gene SNPs rs547984, rs540782, rs693421, rs2499601 are not associated with POAG among ethnic Hans from Sichuan.</p>