Figure 3From: Synergistic effect of stromelysin-1 (matrix metalloproteinase-3) promoter (-1171 5A->6A) polymorphism in oral submucous fibrosis and head and neck lesions ROC 6A/6A allele was also found to be significant in subjects both over and under 45 years of age, while 5A/5A carrier alleles showed an association only in patients less than 45 years of age in case of [A] OSMF and [B] HNSCC.Back to article page