Purple tulip extract improves signs of skin aging through dermal structural modulation as shown by genomic, protein expression and skin appearance of volunteers studied.

Background: Purple tulip extract is a rich source of flavonoids which are powerful antioxidants and can hence be considered as an ideal candidate for use in skin care products.

Aims: We aimed to evaluate the effects of purple tulip extract on skin quality and to determine its molecular modes of interaction.

Methods: A pangenomic study on human skin fibroblasts was carried out to analyze multiple changes in gene expression.

Overexpression of the angiogenic tetrapeptide AcSDKP in human malignant tumors.

Background: The natural tetrapeptide acetyl-Ser-Asp-Lys-Pro (AcSDKP), generated from thymosin beta4 following its cleavage by prolyl oligopeptidase (POP), is a physiological stimulator of angiogenesis. Because of the critical role of neovascularisation in tumor development, the expression of AcSDKP and the activity of POP were examined in different human solid malignancies.

Materials And Methods: The expression of AcSDKP and the activity of POP were evaluated in human blood samples and tissue specimens of thyroid goiter and thyroid papillary carcinoma as well as in commercial cancer tissue microarray.