Pharmacological Properties of Acorus Species

Acorus species, commonly known as sweet flags or vacha, are perennial wetland plants whose rhizomes are rich in volatile oils, phenylpropanoids, terpenoids and flavonoids. The principal bioactive constituents, notably α-asarone and β-asarone, have been shown to exert a broad spectrum of pharmacological activities. In the central nervous system these compounds display neuroprotective, anticonvulsant, anxiolytic and cognition-enhancing effects, mediated in part by antioxidant actions and modulation of signalling pathways such as PI3K/Akt and cAMP-response element binding protein. Cardiovascular benefits include anti-arrhythmic and vasodilatory actions, while anti-inflammatory and antimicrobial properties support potential applications in infection and chronic inflammatory disorders. Preclinical studies also suggest antitumour and cardioprotective effects through the regulation of oxidative stress, apoptosis and immune responses. Pharmacokinetic analyses reveal variable oral bioavailability and tissue distribution, underscoring the need for optimised delivery systems. Despite a favourable safety profile at standard doses, concerns regarding long-term and high-dose toxicity warrant further investigation to define therapeutic windows and minimise risk.

Research from Nature Portfolio

No recent Nature Portfolio content available.

Pharmacological Properties of Acorus Species publication trend

The graph below shows the total number of articles in pharmacological properties of acorus species across all publications each year (not limited to Nature Index journals).

Technical terms

Asarones: Volatile phenylpropanoid compounds found in Acorus rhizomes, mainly α-asarone and β-asarone, responsible for key bioactivities.

Phenylpropanoids: Plant secondary metabolites derived from phenylalanine, often exhibiting antioxidant and anti-inflammatory effects.

Terpenoids: A diverse class of organic compounds built from isoprene units, major constituents of essential oils with various pharmacological actions.

Neuroprotective: Relating to agents or mechanisms that preserve neuronal integrity and function under stress or injury.

Bioavailability: The proportion of an administered substance that reaches systemic circulation and becomes available for biological activity.

References

1. Acori Tatarinowii Rhizoma: A comprehensive review of its chemical composition, pharmacology, pharmacokinetics and toxicity. Frontiers in Pharmacology (2023).
2. Acorus tatarinowii Schott: A Review of Its Botany, Traditional Uses, Phytochemistry, and Pharmacology. Molecules (2023).
3. Role of Vacha (Acorus calamus Linn.) in Neurological and Metabolic Disorders: Evidence from Ethnopharmacology, Phytochemistry, Pharmacology and Clinical Study. Journal of Clinical Medicine (2020).
4. Asarone from Acori Tatarinowii Rhizome prevents oxidative stress-induced cell injury in cultured astrocytes: A signaling triggered by Akt activation. PLOS ONE (2017).
5. Asarone from Acori Tatarinowii Rhizoma Potentiates the Nerve Growth Factor-Induced Neuronal Differentiation in Cultured PC12 Cells: A Signaling Mediated by Protein Kinase A. PLOS ONE (2016).