Our study investigated the effects of Ocimum basilicum L. tincture (1:10) in acute inflammation induced with turpentine oil (i.m. 0.6 ml/100 g b.w.) in Wistar male rats.

METHODS

The results were compared with those from a positive control group with experimental inflammation and a group treated with diclofenac (30 mg/100 g b.w.). The effects were assessed by measuring total leukocyte count and differential leukocyte count expressed as a percentage, a test of in vitro phagocytosis, and the evaluation of nitric oxide synthesis by measuring the metabolites, nitrites and nitrates, and the co-product citrulline.

RESULTS

Ocimum basilicum tincture significantly reduced the total leukocyte count, monocyte percentage, activation of circulating phagocytes, but had a slight inhibitory effect on NO synthesis. Compared to diclofenac, Ocimum basilicum tincture had a smaller inhibitory effect on all tested parameters.

CONCLUSIONS

The tested Ocimum basilicum tincture has important anti-inflammatory effects on bone marrow acute phase response and a reduced one on NO synthesis.