Chenopodium ambrosioides L.An Integrative Review of Phytochemistry, Pharmacological Activities, and Therapeutic Prospects

Chenopodium ambrosioides L., belonging to the family Amaranthaceae, is an aromatic medicinal herb distributed widely in tropical and subtropical regions of the world, including Asia, Africa, and Latin America. The plant has been traditionally used in different cultural systems of medicine to manage a variety of ailments such as digestive disturbances, parasitic infections, respiratory disorders, and inflammatory conditions. Because of these diverse traditional uses, the plant has gained significant attention in ethnopharmacological and phytochemical research. The species is commonly known by several vernacular names including Mexican tea, wormseed, and Indian goosefoot. Various parts of the plant, particularly the leaves and aerial portions, are frequently utilized in the preparation of herbal remedies such as decoctions, infusions, and extracts. These preparations are traditionally administered for gastrointestinal complaints, helminthic infections, respiratory problems, and inflammatory disorders, demonstrating the long-standing reliance on this plant in folk medicine practices. Phytochemical investigations have revealed that C. ambrosioides contains a wide range of biologically active secondary metabolites. Essential oils rich in monoterpenes, along with flavonoids, phenolic compounds, glycosides, and other phytoconstituents, have been reported from different plant parts. Advanced analytical techniques such as chromatographic and spectrometric methods have provided deeper insights into the complex chemical composition of the plant and helped identify compounds that may contribute to its biological activities.^[1]

Chenopodium ambrosioids L.

In addition to phytochemical characterization, several experimental studies have investigated the pharmacological potential of the plant extracts and essential oils. These studies indicate that C. ambrosioides possesses multiple biological activities including antimicrobial, antioxidant, anti-inflammatory, analgesic, antidiabetic, and anthelmintic effects in both in vitro and in vivo experimental models. Such findings highlight the potential importance of this plant in natural product-based drug discovery.^[2] Despite the growing body of research, several aspects of this plant remain insufficiently explored. In particular, detailed mechanistic investigations and clinical studies are still limited, which restricts the translation of experimental findings into therapeutic applications. Therefore, systematic reviews that compile existing information and identify research gaps are essential for guiding future studies. The present review summarizes the ethnomedicinal uses, phytochemical composition, pharmacological activities, and safety considerations associated with Chenopodium ambrosioides L., while also highlighting prospects for its development as a potential phytopharmaceutical agent.^[4]

Botanical description of Chenopodium ambrosioids L. ^[5]

PHYTOCHEMICAL CONSTITUENTS OF CHENOPODIUM AMBROSIOIDES L.

Chenopodium ambrosioides L. contains a diverse range of secondary metabolites distributed in its leaves, stems, seeds, and aerial parts. Several phytochemical investigations using advanced analytical techniques such as gas chromatography–mass spectrometry (GC-MS) and liquid chromatography–mass spectrometry (LC-MS/MS) have confirmed the presence of numerous bioactive compounds. These constituents are largely responsible for the wide spectrum of biological activities associated with the plant.

1. Essential Oils and Terpenoids

Essential oils represent one of the most important chemical groups identified in C. ambrosioides. These volatile oils are mainly composed of monoterpenes and sesquiterpenes. Chemical analyses have shown that α-terpinene, ascaridole, p-cymene, limonene, carvacrol, thymol, and β-myrcene are commonly present in significant quantities. Among these components, α-terpinene is often reported as a major constituent in the essential oil profile. However, the relative concentration of these compounds may vary depending on geographical origin, environmental conditions, and plant parts used for extraction.^[1]

2. Flavonoids and Phenolic Compounds

The plant is also rich in flavonoids and phenolic substances that contribute significantly to its antioxidant and anti-inflammatory properties. Phytochemical profiling has identified several flavonoids such as rutin, hesperidin, and nicotiflorin in different extracts of the plant. In addition, various phenolic acids and phenol derivatives have been detected. These compounds play an important role in neutralizing free radicals and regulating enzymatic activities associated with oxidative stress.^[2]

3. Alkaloids, Saponins, Tannins, and Glycosides

Preliminary phytochemical screening of C. ambrosioides extracts has confirmed the presence of alkaloids, saponins, tannins, and glycosides. These classes of compounds contribute to many of the plant’s medicinal properties. Alkaloids are widely recognized for their antimicrobial and antiparasitic effects, while saponins and tannins are known to exhibit anti-inflammatory and antioxidant activities. Although quantitative estimation is limited in some studies, these constituents have been consistently reported in different solvent extracts of the plant.^[6]

4. Additional Bioactive Compounds

Several targeted isolation studies have reported specific phytochemicals including kaempferol glycosides such as kaempferol-7-O-α-L-rhamnopyranoside and kaempferol-3,7-di-O-α-L-rhamnopyranoside. Other compounds such as quercetin derivatives, syringaresinol, benzyl β-D-glucopyranoside, and certain amide derivatives have also been identified. These molecules are associated with biological effects such as anti-inflammatory, analgesic, and metabolic regulatory activities.

5. Other Chemical Components

In addition to the major classes of compounds, other constituents including fatty acids, alcohols, steroids, and organic acids have been detected in various extracts. Examples include palmitic acid and octadecadienoic acid. These molecules may contribute to physiological functions such as membrane stability, metabolic regulation, and cellular signalling processes.^[2]

PHARMACOLOGICAL ACTIVITIES OF CHENOPODIUM AMBROSIOIDES L.

1. Anxiolytic Activity

Chenopodium ambrosioides L. exhibits notable anxiolytic properties. Administration of its essential oil leads to increased exploration of open arms and longer time spent in open areas, indicating reduced anxiety-related behavior. This calming effect occurs without significant impairment of locomotor activity or motor coordination. The anxiolytic response is associated with modulation of dopaminergic pathways and involvement of GABAergic neurotransmission. In addition, reduced corticosterone levels suggest a stress-relieving effect. Behavioral relaxation occurs without strong sedative effects, and the response appears dose dependent. Acute exposure produces measurable improvement in anxiety-related parameters while maintaining normal motor performance. Furthermore, the essential oil may help restore balance in central neurotransmitter systems responsible for emotional regulation. Enhancement of inhibitory neurotransmission contributes to relaxation and reduced fear responses while maintaining alertness.^[7]

2. Antimicrobial and Antioxidant Activity

The plant demonstrates broad antimicrobial potential against a variety of pathogenic microorganisms. Different extracts show varying levels of antibacterial and antifungal activity depending on the solvent used. Petroleum ether extracts have demonstrated strong antibacterial effects, while methanolic extracts exhibit pronounced antifungal properties. Some extracts inhibit microbial growth even at relatively low concentrations. Bioactive phytochemicals present in the plant can interfere with microbial cellular functions and disrupt membrane integrity. In addition to antimicrobial effects, the plant also shows considerable antioxidant activity due to the presence of phenolic compounds and flavonoids. These compounds act as hydrogen donors and free radical scavengers, thereby reducing oxidative stress. Metal chelating ability also contributes to the antioxidant defense mechanism. The combination of antimicrobial and antioxidant activities supports the plant’s traditional therapeutic applications.^[8]

3. Anticancer Activity

The essential oil of C. ambrosioides has shown promising anticancer potential against breast cancer cell lines. It suppresses cell proliferation in a concentration-dependent manner and produces significant inhibition of cancer cell growth after exposure. Studies indicate that the complete essential oil often exhibits stronger activity compared to individual isolated constituents.

The mechanism of action involves increased oxidative stress within tumor cells, leading to biochemical alterations and apoptosis. Elevated levels of malondialdehyde indicate lipid peroxidation, which contributes to cell damage. The multi-component composition of the oil enhances its biological effectiveness and promotes programmed cell death in malignant cells.^[9]

4. Anti-inflammatory Activity

The plant possesses significant anti-inflammatory properties that are largely attributed to its monoterpene-rich essential oil and phenolic compounds. These constituents regulate inflammatory processes by modulating enzyme activity and reducing the production of pro-inflammatory mediators. The hydroethanolic extract also exhibits anti-inflammatory potential due to its high phenolic content.

Antioxidant activity further supports this effect by limiting oxidative damage in tissues. Monoterpenes present in the plant may influence signalling pathways associated with inflammation, thereby reducing inflammatory responses and tissue injury.^[10]

5. Antifungal Activity

Essential oil obtained from the aerial parts of the plant demonstrates strong antifungal effects. Major components such as α-terpinene and p-cymene play an important role in this activity. Antifungal potency generally increases with increasing concentration of the oil. The mechanism involves disruption of fungal cell membrane integrity and interference with metabolic processes necessary for fungal growth. Due to its lipophilic nature, the essential oil can penetrate fungal membranes effectively, resulting in structural damage and inhibition of fungal proliferation.^[11]

6. Antipyretic Activity

Different fractions of the plant have demonstrated temperature-reducing effects. Phenolic acids and flavonoids present in the extracts contribute to the observed antipyretic activity. Administration of certain fractions results in a significant decrease in elevated body temperature. Antioxidant properties may also contribute to this activity by regulating inflammatory mediators associated with fever. Compounds such as protocatechuic acid and vanillin enhance the pharmacological potential of the plant. The combined action of these bioactive molecules helps restore physiological balance and control febrile conditions.^[12]

7. Anthelmintic Activity

Leaf extracts of C. ambrosioides show strong activity against parasitic worms. The presence of phytochemicals such as alkaloids, flavonoids, tannins, saponins, and triterpenoids contributes to this effect. Increasing concentrations of the extract shorten both paralysis time and death time of worms. The mechanism is believed to involve interference with neuromuscular coordination of the parasites, ultimately leading to paralysis and death. The synergistic action of multiple phytochemicals enhances the anthelmintic effectiveness of the plant.^[13]

8. Antimalarial Activity

Hydroalcoholic extracts of the plant leaves demonstrate antimalarial potential by inhibiting parasite growth in infected erythrocytes. The extract interferes with the development cycle of the parasite and reduces parasitaemia levels.

Interaction between bioactive constituents and parasite-related proteins may contribute to suppression of parasite multiplication. Reduction of parasite load indicates potential usefulness of the plant in malaria management.^[14]

9. Antitussive Activity

Aqueous extracts of the plant have shown significant cough-suppressing effects. Administration of the extract leads to a reduction in cough frequency in a dose-dependent manner. Higher doses result in stronger inhibition of the cough reflex. The extract is believed to act on respiratory reflex pathways while maintaining systemic safety. Lack of significant organ toxicity further supports its potential use in the management of respiratory conditions.^[15]

10. Cytotoxic Activity

The essential oil of C. ambrosioides exhibits notable cytotoxic effects against breast cancer cells. The degree of inhibition increases with both concentration and duration of exposure. DNA fragmentation studies confirm induction of programmed cell death.

The complex mixture of compounds present in the oil enhances its biological activity and contributes to apoptosis-inducing properties. These findings highlight the plant’s potential role in anticancer research.^[16]

CONCLUSION

Chenopodium ambrosioides L. is recognized as an important medicinal plant with extensive traditional applications in different parts of the world. Scientific investigations conducted over recent years have confirmed that the plant contains a wide variety of phytochemical constituents such as essential oils, terpenoids, flavonoids, phenolic compounds, alkaloids, and glycosides. These bioactive compounds are responsible for numerous pharmacological effects reported for the plant. Experimental studies have demonstrated several biological activities including antimicrobial, antioxidant, anti-inflammatory, anthelmintic, antidiabetic, hepatoprotective, and anticancer properties in different experimental models. Such findings provide strong scientific support for many of the traditional therapeutic uses associated with this plant. However, the pharmacological effectiveness of C. ambrosioides may vary depending on factors such as geographical origin, plant part utilized, and extraction technique employed. Therefore, proper standardization of plant extracts and identification of key bioactive markers are necessary to ensure consistent therapeutic outcomes. Although preclinical investigations indicate relatively safe usage at appropriate concentrations, certain constituents of the plant have been associated with toxicity when used in excessive amounts. This highlights the importance of detailed toxicological studies to establish safe dosage limits.

In summary, Chenopodium ambrosioides L. possesses significant potential as a source of natural therapeutic agents. Continued research focusing on bioactive compound isolation, mechanism-based pharmacological studies, and well-designed clinical investigations will be essential for translating its traditional and experimental benefits into effective and safe pharmaceutical applications.

ACKNOWLEDGEMENT

The authors sincerely thank Dr. Ganesh Phadtare, Head of the Department of Pharmacology, IVM’s Krishnarao Bhegade Institute of Pharmaceutical Education and Research, Talegaon Dabhade, Pune, for his valuable guidance and academic support. The authors are also grateful to Preeti Lambkane and Sandhya Patil for their constant support and constructive discussions. The authors acknowledge IVM’s Krishnarao Bhegade Institute of Pharmaceutical Education and Research for providing the necessary facilities and resources. Special appreciation is extended to all researchers and traditional knowledge holders whose work has contributed to the understanding of Chenopodium ambrosioids L.

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