The TP53 codon 72 Proline-Arginine polymorphism (TP53 P72R) is the most widely studied candidate among those evaluated for a putative association between impaired apoptosis and glaucoma.
Four hundred and twenty-five Japanese patients with POAG, including normal tension glaucoma (NTG, n=213) and high tension glaucoma (HTG, n=212) and 189 control subjects without glaucoma were analyzed for two p53 polymorphisms (rs1042522; a G-->C substitution at codon 72 in exon 4 and rs59758982; a 16 base pair insertion in intron 3) using allele specific primer PCR and a pyrosequencing technique respectively.