[Retracted] Protective Effects of Soy Oligopeptides in Ultraviolet B-Induced Acute Photodamage of Human Skin

Figure 1

(a) Erythema index (EI) value in each group as detected by Mexameter MX 18 probe of MPA 9 device. (b) Melanin index (MI) value in each group as detected by Mexameter MX 18 probe of MPA 9 device. (c) Stratum corneum (SC) hydration value in each group as detected by Corneometer CM 825 probe of MPA 9 device. (d) Transepidermal water loss (TEWL) value in each group as detected by Tewameter TM 300 probe of MPA 9 device. Compared with ultraviolet B (UVB) group, the skin EI in UVB + 5.0 IU/mL soy oligopeptides (SOP) and UVB + 10.0 IU/mL SOP groups was significantly decreased () and UVB + 2.5 IU/mL SOP group showed no significant difference (); the skin MI in UVB + SOP groups showed no significant difference (); the SC hydration on day 1 in UVB + 5.0 IU/mL SOP and UVB + 10 IU/mL SOP groups was significantly increased (), whilst that of days 3 and 10 showed no significant difference (), and the skin TEWL in UVB + SOP groups showed no significant difference (). The statistical analysis was carried out with the paired -test; data were expressed as the mean ± SD for each group; when compared with negative control group of the same period; when compared with negative control group of the same period; when compared with UVB group of the same period.

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