ArticleActa parasitologica2023
Urtica dioica Extract Leads to Cyst Reduction, Enhanced Cell-Mediated Immune Response, and Antioxidant Activity in Experimental Toxoplasmosis.
Article in Acta parasitologica, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 1 citations in OpenAlex.
- Targeting oxidative stress, senescence, and neurodegeneration: anti-aging perspectives of Urtica dioica and Centella asiatica.Inflammopharmacology · 2026Review
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4 authors at 1 institution in 1 country.
Funding
Abstract
backgroundToxoplasmosis is a cosmopolitan parasitic infection caused by Toxoplasma gondii which is commonly treated by pyrimethamine (PYR) plus sulfadiazine (SDZ) with several adverse side effects. The present study evaluated the therapeutic effects of Urtica dioica L. aqueous extract (UDE) on acute and chronic toxoplasmosis in mice.
methodsFor this purpose, mice were infected with 20 cysts (acute infection) or 10 cysts (chronic infection) of T. gondii (Me49 strain). The mice were treated with 200 mg/kg of UDE intraperitoneally (IP) and intragastric route (IG). The UDE-treated mice were compared with the PYR + SDZ treatment. The histopathological changes, cyst count, total antioxidant capacity (TAC), malondialdehyde (MDA) assay, and serum INF-γ were also evaluated.
resultsIn the acute toxoplasmosis, UDE by IP and IG administration significantly reduced the number of brain cysts by 93.74 and 92.55%, respectively, and increased the survival rate to 80% compared with 60% in untreated controls. In the chronic infection, cyst burden decreased at 88.2 and 83.4%, respectively, for IP and IG treatments. Moreover, UDE significantly increased INF- γ levels in acute and chronic toxoplasmosis. Tissue inflammatory lesions were reduced in the UDE-treated subgroups compared to the untreated group. UDE treatment significantly reduced MDA levels and elevated TAC in both acute and chronic infections.
conclusionThe results show that U. dioica possesses significant immunostimulant and antioxidant activity with a higher cyst reduction in the brain during acute toxoplasmosis. Further studies are required to investigate the fractionations of UDE against T. gondii and its combination with other standard drugs.
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