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Mechanism of drug-induced gingival overgrowth revisited: A unifying hypothesis

  • Howard University
  • Georgetown University
  • National Institutes of Health

Research output: Contribution to journalReview articlepeer-review

65 Scopus citations

Abstract

Drug-induced gingival overgrowth (DIGO) is a disfiguring side effect of anti-convulsants, calcineurin inhibitors, and calcium channel blocking agents. A unifying hypothesis has been constructed which begins with cation flux inhibition induced by all three of these drug categories. Decreased cation influx of folic acid active transport within gingival fibroblasts leads to decreased cellular folate uptake, which in turn leads to changes in matrix metalloproteinases metabolism and the failure to activate collagenase. Decreased availability of activated collagenase results in decreased degradation of accumulated connective tissue which presents as DIGO. Studies supporting this hypothesis are discussed.

Original languageEnglish
Pages (from-to)e51-e61
JournalOral Diseases
Volume21
Issue number1
DOIs
StatePublished - Jan 1 2015

Keywords

  • Calcineurin inhibitors
  • Calcium channel blocking agents
  • Drug-induced gingival overgrowth
  • Folic acid
  • Matrix metalloproteins
  • Phenytoin

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