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

Autor: Dincy Peter, G Jayakumar Amirtharaj, Teena Mathew, Susanne Pulimood, Anup Ramachandran
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Indian Journal of Dermatology, Vol 60, Iss 5, Pp 427-431 (2015)
Druh dokumentu: article
ISSN: 0019-5154
1998-3611
DOI: 10.4103/0019-5154.159617
Popis: 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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