Salivary levels of matrix metalloproteinase (MMP)-9 and tissue inhibitor of matrix metalloproteinase (TIMP)-1: a pilot study about the relationship with periodontal status and MMP-9(-1562C/T) gene promoter polymorphism.

Abstract excerpt

OBJECTIVE: Chronic periodontitis (CP) has been linked with an imbalance in the MMP-9/TIMP-1 ratio. A reasonable biologic explanation for this link is that the MMP-9 transcriptional activity can be modulated by MMP-9(-1562C/T) gene promoter polymorphism contributing to periodontal breakdown. This study aimed to assess the relationship between salivary MMP-9/TIMP-1 balance, MMP-9(-1562C/T) genotype and periodontal...

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