Protective effect of Cassia occidentalis L. on cyclophosphamide-induced suppression of humoral immunity in mice.
Cassia occidentalis L. (Kasaundi) is a widely used medicinal plant. Earlier, we have shown that it possesses antimutagenic activity against benzo[a]pyrene (BaP) and cyclophosphamide (CP)-induced mutagenicity in mice. In this study, we investigated if this plant could also provide protection against CP-induced immunosuppression in animal models. Swiss albino male mice were treated per os with the aqueous extract of C. occidentalis (100 mg/kg, body weight (b.w.)) for 14 days. Cyclophosphamide was given intraperitoneally in a single dose of 50 mg/kg b.w. Body weight, relative organ weight, lymphoid organ cellularity, hemagglutination titre (HT), plaque forming cell (PFC) assay and quantitative hemolysis of SRBC (QHS) were studied in these animals. CP, as expected, showed suppressive effects on lymphoid organ weight and cellularity and other parameters of humoral immunity. Plant extract treatment itself produced no toxicity. The administration of plant extract to CP-exposed animals resulted in improved humoral responses. C. occidentalis treatment significantly (P<0.01) enhanced PFC response in CP-treated animals. In QHS assay, also C. occidentalis showed protection in CP-treated animals. Bone marrow cell counts, which were reduced in CP-treated animals, were reversed significantly (p<0.01) to normal levels in CP+ plant extract group animals. In our earlier study, we found that C. occidentalis modulated hepatic drug metabolizing enzymes. It is suggested that by a similar mechanism, it may be influencing the hematotoxic and immunotoxic responses of cyclophosphamide.[1]References
- Protective effect of Cassia occidentalis L. on cyclophosphamide-induced suppression of humoral immunity in mice. Bin-Hafeez, B., Ahmad, I., Haque, R., Raisuddin, S. Journal of ethnopharmacology. (2001) [Pubmed]
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