apigeniini

Apigenin, known in some languages as apigeniini, is a natural plant flavone and a member of the flavonoid family. It is structurally classified as 4',5,7-trihydroxyflavone and has a molecular formula of C15H10O5 (molar mass about 270.24 g/mol). It occurs widely in the plant kingdom and is found in high concentrations in parsley, celery, chamomile, and various fruits and vegetables, often as glycosides such as apigenin-7-O-glucoside.

In plants, apigenin is produced through the phenylpropanoid pathway. Chalcone synthase catalyzes the formation of naringenin chalcone from p-coumaroyl-CoA and malonyl-CoA, which is converted to naringenin and subsequently transformed by flavone synthase to apigenin. Glycosylation commonly yields glycoside forms that store the compound in plant tissues and influence solubility and bioavailability.

Biological activity has been investigated primarily in vitro and in animal models. Apigenin exhibits antioxidant and anti-inflammatory properties, including modulation of signaling pathways such as NF-kB and cyclooxygenases. It has been studied for antiproliferative and pro-apoptotic effects in various cancer cell lines and for neuroprotective and anxiolytic potential in preclinical systems. However, clinical evidence is limited, and many effects observed in preclinical studies have not been confirmed in humans. Oral bioavailability is relatively low due to poor solubility and extensive metabolism, with most intake occurring as conjugated metabolites.

Safety and dietary exposure: apigenin is generally considered safe at amounts consumed in a normal diet. High-dose supplementation may interact with drug-metabolizing enzymes or medications, and its use as a therapeutic agent is not established.