Title:Radioprotective Effects of Plants from the Lamiaceae Family
Volume: 22
Issue: 1
Author(s): Tomasz M. Karpiński*, Artur Adamczak and Marcin Ożarowski
Affiliation:
- Chair and Department of Medical Microbiology, Faculty of Medical Sciences, Poznań University of Medical Sciences, Poznań,
Poland
Keywords:
Cancer, radiotherapy, gamma radiation, radioprotection, amifostine, Labiatae, medicinal plants.
Abstract: Background: Edible and medicinal plants are still an interesting source of promising biologically
active substances for drug discovery and development. At a time of increasing cancer incidence in the world,
alleviating the bothersome side effects of radiotherapy in debilitated cancer patients is becoming an important
challenge.
Objective: The aim of the study was to overview the literature data concerning the radioprotective activity of
extracts, essential oils, and some chemical compounds obtained from 12 species belonging to the Lamiaceae
family, gathering of numerous spice and medicinal plants rich in valuable phytochemicals.
Results: The analysis of available publications showed radioprotective effectiveness of essential oils and
complex extracts containing phenolic acids and flavonoids in various in vitro and in vivo models. Relatively welldocumented
preventive properties exhibited the following species: Mentha × piperita, Ocimum tenuiflorum,
Origanum vulgare, and Rosmarinus officinalis. However, few plants such as Lavandula angustifolia, Mentha
arvensis, M. spicata, Plectranthus amboinicus, Salvia miltiorrhiza, S. officinalis, Scutellaria baicalensis, and
Zataria multiflora should be more investigated in the future. Among the mechanisms of radioprotective effects of
well-studied extracts and phytochemicals, it can be mentioned mainly the protection against chromosomal
damage, scavenging free radicals, decreasing of lipid peroxidation and elevating of glutathione, superoxide
dismutase, catalase, and alkaline phosphatase enzyme levels as well as the reduction of the cell death. The plant
substances protected the gastrointestinal tract, bone marrow and lung fibroblasts.
Conclusion: The studied species of Lamiaceae family and their active chemical compounds are potent in
alleviating the side effects of radiotherapy and should be considered as a complementary therapy.