“…52 The crude extract of F. redolens isolated from Olive (Olea europaea L.) stem resulted in the isolation of chrysophanol (109) and fumaric acid (110); chrysophanol is an anthraquinone having several pharmacological activities such as anticancer, hepatoprotective, neuroprotective, anti-inammatory, and antiulcer, in addition to its antimicrobial potency against various microbial strains, including: C. albicans, C. neoformans, T. mentagrophytes, and A. fumigatus, with MIC values of 50, 50, 25, and 50 mg mL −1 . 53 Fumaric acid (110) is one of the more commonly produced secondary metabolites and it is used in the treatment of psoriasis or multiple sclerosis. Clinical studies in psoriasis showed a reduction of peripheral CD4 + and CD8 + Tlymphocytes due to the ability of fumaric acid esters to induce apoptosis.…”