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Indian Journal of Dermatology
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BASIC RESEARCH
Year : 2015  |  Volume : 60  |  Issue : 5  |  Page : 427-431

Role of oxidative and nitrosative stress in pathophysiology of toxic epidermal necrolysis and Stevens Johnson syndrome-A pilot study


1 Department of Dermatology, Venereology and Leprology, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, Tamil Nadu, India
2 Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, Tamil Nadu, India

Correspondence Address:
Dincy Peter
Department of Dermatology, Venereology and Leprosy, Christian Medical College, Vellore - 632 004, Tamil Nadu
India
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Source of Support: Instituitional research grant (FLUID research grant), Conflict of Interest: None


DOI: 10.4103/0019-5154.159617

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Background: Oxidative and nitrosative stress caused by drug metabolism may be a trigger for keratinocyte apoptosis in the epidermis seen in toxic epidermal necrolysis (TEN) and Stevens Johnson syndrome (SJS). Aims: To estimate oxidative damage in the serum and to examine the role of nitric oxide in mediating epidermal damage in patients with TEN and SJS. Materials and Methods: A prospective study was conducted among TEN and SJS patients and controls in a tertiary care center between January 2006 and February 2010. Patients with a maculopapular drug rash without detachment of skin constituted the control group 1 (drug exposed). Patients without a drug rash constituted the control group 2 (drug unexposed). The serum values of protein carbonyls, malondialdehyde, conjugated diene and nitrates were measured. Two-group comparison with the non-parametric Mann-Whitney U test was used. Significance of differences if any was established using Pearson's Chi-square test. Results: Ten patients in the SJS-TEN group (study group), 8 patients in control group 1 and 7 patients in control group 2 were included. More than one drug was implicated in 4/10 patients in group 1 and 3/8 patients in group 2. SCORTEN of 0, 1 and 3 at admission were seen in 2, 6 and 2 patients, respectively. The serum values of protein carbonyls, malondialdehyde, conjugated diene and nitrates were not significantly increased in the study group when compared to the controls. Conclusions: There was no elevation of oxidative stress markers in patients with TEN and SJS as compared to the control population.


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