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J Ethnopharmacol. 1997 Oct;58(2):89-95.

Immunopotentiating compounds from Tinospora cordifolia.

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Pharmacology Division, Regional Research Laboratory, Jammu Tawi, India.


The active principles of Tinospora cordifolia a traditional Indian plant were found to possess anticomplementary and immunomodulatory activities. Syringin (TC-4) and cordiol (TC-7) inhibited the in vitro immunohaemolysis of antibody-coated sheep erythrocytes by guinea pig serum. The reduced immunohaemolysis was found to be due to inhibition of the C3-convertase of the classical complement pathway. However, higher concentrations showed constant inhibitory effects. The compounds also gave rise to significant increases in IgG antibodies in serum. Humoral and cell-mediated immunity were also dose-dependently enhanced. Macrophage activation was reported for cordioside (TC-2), cordiofolioside A (TC-5) and cordiol (TC-7) and this activation was more pronounced with increasing incubation times.

[Indexed for MEDLINE]

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