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Year : 2018  |  Volume : 8  |  Issue : 1  |  Page : 12-20

Immunohistochemical analysis of the role connective tissue growth factor in drug-induced gingival overgrowth in response to phenytoin, cyclosporine, and nifedipine

1 Department of Periodontics, Tamil Nadu Government Dental College, Chennai, Tamil Nadu, India
2 Department of Periodontics, Ragas Dental College and Hospitals, Chennai, Tamil Nadu, India
3 Department of Periodontics and Oral Implantology, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar, India
4 Department of Oral Medicine S.C.B. Dental College and Hospitals, Cuttack, Odisha, India

Correspondence Address:
Dr. Debasish Mishra
Department of Periodontics and Oral Implantology, Kalinga Institute of Dental Sciences, Campus 5, KIIT University, Bhubaneswar - 751 024, Odisha
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_403_17

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Objective: To evaluate for the presence of connective tissue growth factor (CTGF) in drug (phenytoin, cyclosporine, and nifedipine)-induced gingival overgrowth (DIGO) and to compare it with healthy controls in the absence of overgrowth. Materials and Methods: Thirty-five patients were chosen for the study and segregated into study (25) and control groups (10). The study group consisted of phenytoin-induced (10), cyclosporine-induced (10), and nifedipine-induced (5) gingival overgrowth. After completing necessary medical evaluations, biopsy was done. The tissue samples were fixed in 10% formalin and then immunohistochemically evaluated for the presence of CTGF. The statistical analysis of the values was done using statistical package SPSS PC+ (Statistical Package for the Social Sciences, version 4.01). Results: The outcome of immunohistochemistry shows that DIGO samples express more CTGF than control group and phenytoin expresses more CTGF followed by nifedipine and cyclosporine. Conclusion: The study shows that there is an increase in the levels of CTGF in patients with DIGO in comparison to the control group without any gingival overgrowth. In the study, we compared the levels of CTGF in DIGO induced by three most commonly used drugs phenytoin, cyclosporine, and nifedipine. By comparing the levels of CTGF, we find that cyclosporine induces the production of least amount of CTGF. Therefore, it might be a more viable drug choice with reduced side effects.

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