TY - JOUR T1 - Photoprotective Properties of Natural Pulvinic Acid Derivatives toward Ultraviolet-Induced Damages TT - Photoprotective Properties of Natural Pulvinic Acid Derivatives toward Ultraviolet-Induced Damages AU - Varol, Mehmet PY - 2018 DA - December DO - 10.21448/ijsm.457412 JF - International Journal of Secondary Metabolite JO - Int. J. Sec. Metabolite PB - İzzet KARA WT - DergiPark SN - 2148-6905 SP - 319 EP - 330 VL - 5 IS - 4 LA - en AB - Pulvinic acid derivatives are considered asworthy to be evaluated as skin protection factor toward ultraviolet-induceddamages because of their colors and locations in lichens. Due to the lack ofliterature about photo-protective features of pulvinic acid derivatives, theircosmetic potentials for skin protection were evaluated in silico, for the first time. Computational chemistry, biology andpharmacology platforms such as Gaussian, GAMESS, PASS, PaDEL-DDPredictor andVEGA QSAR platforms were employed to determine the activities of pulvinic acidderivatives. Pulvinic acid derivatives were divided into three groups as themost promising, promising and unpromising compounds according to the calculatedp-values. Although leprapinic acid,demethylleprapinic acid, pinastric acid, leprapinic acid methyl ether,4-hydroxyvulpinic acid and vulpinic acid were determined as the most promisingcompounds, epanorin and rhizocarpic acid were identified as promisingcompounds. The proposed model seems to be reliable because the calculated p-value for vulpinic acid was found tobe compatible with previously obtained experimental results. The pulvinic acidderivatives that were identified as the most promising ones should be thereforefurther studied by in vitro and in vivo multiple experiments. KW - Lichen KW - Ultraviolet KW - Photoprotective KW - Pulvinic Acid KW - p-value N2 - Pulvinic acid derivatives are considered asworthy to be evaluated as skin protection factor toward ultraviolet-induceddamages because of their colors and locations in lichens. Due to the lack ofliterature about photo-protective features of pulvinic acid derivatives, theircosmetic potentials for skin protection were evaluated in silico, for the first time. Computational chemistry, biology andpharmacology platforms such as Gaussian, GAMESS, PASS, PaDEL-DDPredictor andVEGA QSAR platforms were employed to determine the activities of pulvinic acidderivatives. Pulvinic acid derivatives were divided into three groups as themost promising, promising and unpromising compounds according to the calculatedp-values. Although leprapinic acid,demethylleprapinic acid, pinastric acid, leprapinic acid methyl ether,4-hydroxyvulpinic acid and vulpinic acid were determined as the most promisingcompounds, epanorin and rhizocarpic acid were identified as promisingcompounds. The proposed model seems to be reliable because the calculated p-value for vulpinic acid was found tobe compatible with previously obtained experimental results. The pulvinic acidderivatives that were identified as the most promising ones should be thereforefurther studied by in vitro and in vivo multiple experiments. CR - Stocker-Wörgötter, E., Biochemical Diversity and Ecology of Lichen-Forming Fungi: Lichen Substances, Chemosyndromic Variation and Origin of Polyketide-Type Metabolites (Biosynthetic Pathways), in Recent Advances in Lichenology. 2015, Springer. p. 161-179. CR - Mosbach, K., Biosynthesis of lichen substances, products of a symbiotic association. Angewandte Chemie International Edition, 1969. 8(4): p. 240-250. 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