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  Indian J Med Microbiol
 

Figure 2: Effect of Viburnum grandiflorum on ultraviolet-B induced antioxidants and lipid peroxidation status in HaCaT cells. (A) Activities of superoxide dismutase, catalase and glutathione peroxidase in ultraviolet-B irradiated and Viburnum grandiflorum (100 μg/ml) pre-treated HaCaT cells. *Enzyme concentration required for 50% inhibition of nitroblue tetrazolium reduction in one minute. **μmol of hydrogen peroxide consumed per minute. ***μg of glutathione consumed per minute. (B) Lipid peroxidation status on control, Viburnum grandiflorum, ultraviolet-B irradiated and Viburnum grandiflorum pre-treated ultraviolet-B irradiated HaCaT cells. Lipid peroxidation expressed as mM/Protein. Values are given as means ± S.E. of six experiments in each group. Values not sharing a common superscript for a particular factor/group (a, b, c) differ significantly. bSignificantly different from control (P < 0.01). Significantly different from the ultraviolet-B group (P < 0.05)

Figure 2: Effect of <i>Viburnum grandiflorum</i> on ultraviolet-B induced antioxidants and lipid peroxidation status in HaCaT cells. (A) Activities of superoxide dismutase, catalase and glutathione peroxidase in ultraviolet-B irradiated and <i>Viburnum grandiflorum</i> (100 μg/ml) pre-treated HaCaT cells. *Enzyme concentration required for 50% inhibition of nitroblue tetrazolium reduction in one minute. **μmol of hydrogen peroxide consumed per minute. ***μg of glutathione consumed per minute. (B) Lipid peroxidation status on control, <i>Viburnum grandiflorum</i>, ultraviolet-B irradiated and <i>Viburnum grandiflorum</i> pre-treated ultraviolet-B irradiated HaCaT cells. Lipid peroxidation expressed as mM/Protein. Values are given as means ± S.E. of six experiments in each group. Values not sharing a common superscript for a particular factor/group (a, b, c) differ significantly. <sup>b</sup>Significantly different from control (<i>P</i> < 0.01). Significantly different from the ultraviolet-B group (<i>P</i> < 0.05)