Phytochemistry and Pharmacological Potential of the Genus Dalea: Current Evidence and Future Directions
Abstract
The genus Dalea (Fabaceae) comprises approximately 188 recognized species distributed mainly in arid and semi-arid regions of the American continent, where several species have been traditionally used in folk medicine for the treatment of gastrointestinal disorders, infections, inflammation, and other ailments. In recent years, Dalea species have attracted considerable scientific interest due to their remarkable diversity of secondary metabolites, particularly prenylated flavonoids, isoflavonoids, rotenoids, chalcones, stilbenes, and terpenoid-rich essential oils. Among these compounds, prenylated and geranylated flavonoids represent some of the most characteristic metabolites of the genus and are strongly associated with its reported biological activities. This review summarizes current knowledge regarding the taxonomy, distribution, traditional uses, phytochemical profile, pharmacological activities, and toxicological aspects of the genus Dalea. Although only about 19 species (approximately 10% of currently recognized species) have been subjected to phytochemical investigation, substantial knowledge gaps remain within the genus. Special emphasis is placed on prenylated phenolic compounds because of their structural diversity and broad spectrum of biological activities, including antibacterial, antifungal, antiparasitic, anti-inflammatory, neuroprotective, anticancer, anti-tyrosinase, and xanthine-oxidase-inhibitory effects. Despite promising pharmacological findings, most…
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