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  • Title: Gingival hyperplasia in renal allograft recipients receiving cyclosporin-A and calcium antagonists.
    Author: King GN, Fullinfaw R, Higgins TJ, Walker RG, Francis DM, Wiesenfeld D.
    Journal: J Clin Periodontol; 1993 Apr; 20(4):286-93. PubMed ID: 8473540.
    Abstract:
    Although it is established that the immunosuppressant cyclosporin-A (CsA) and calcium antagonists [Nifedipine (Nif) and Diltiazem (Dz)] can independently induce gingival enlargement, little has been documented on the significance of the salivary CsA levels and the combined effect of CsA and a calcium antagonist upon gingival tissues. In the present cross-sectional investigation, clinical periodontal parameters and the pharmacologic profiles of CsA, Nif, and Dz were determined for 66 renal transplant recipients. Subjects were divided into the following groups: Group (Gp) 1: CsA [n = 18]; Gp 2: CsA + Nif [n = 15]; Gp 3: CsA + Dz [n = 12] and a negative Control Gp 4: azathioprine [n = 21]. A gingival enlargement score was assessed for each patient from study models using a hyperplastic index (HI). Pharmacologic profiles included CsA whole blood and whole saliva levels as measured by fluorescence polarization immunoassay. The HI scores between Gp 1, 2 and 3 were not significantly different. However, when compared with controls (Gp 4), there was a significant difference in HI and all individual groups (Gp 1, 2, 3) (p < 0.05). Gingival hyperplasia was only weakly related to plaque and calculus but was unrelated to CsA dose (mg/kg/day), duration of CsA therapy (months), CsA blood or saliva levels (ng/ml), or the concurrent administration of a Nif or Dz. Gingival enlargement was found to occur in 49% of subjects who were either on CsA or CsA and a calcium antagonist. It is concluded that CsA alone or in combination with a calcium antagonist caused a significant increase in gingival enlargement compared with controls.(ABSTRACT TRUNCATED AT 250 WORDS)
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