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  • Title: The effect of crocin and safranal, constituents of saffron, against subacute effect of diazinon on hematological and genotoxicity indices in rats.
    Author: Hariri AT, Moallem SA, Mahmoudi M, Hosseinzadeh H.
    Journal: Phytomedicine; 2011 Apr 15; 18(6):499-504. PubMed ID: 21036580.
    Abstract:
    In this study, the effect of crocin and safranal was studied against subacute toxicity of diazinon (DZN) on hematological and genotoxicity indices in rats. The rats were divided into 16 groups consisted of 6 rats in control, diazinon, vitamin E, vitamin E and DZN, crocin (3 doses), crocin (3 doses) and DZN, safranal (3 doses), safranal (3 doses) and DZN groups. Vitamin E (200 IU/kg), safranal at doses 0.025, 0.05 and 0.1 ml/kg and crocin at doses 50, 100 and 200 mg/kg were injected intraperitoneally to rats three times per week alone or with DZN (20 mg/kg/day, orally) for 4 weeks. Hematological parameters were evaluated at the end of 4 weeks. The evaluation of genotoxicity was done using the micronucleus assay. Vitamin E and, at lower doses, safranal (0.025 and 0.05 ml/kg) and crocin (50 mg/kg) restored the reduction of red blood cell, hemoglobin and hematocrit indices induced by DZN. These agents at some doses also prevented the reduction in platelets counts indices in diazinon treated group. A significant increase in reticulocyte was induced by diazinon. Vitamin E, safranal (0.025 or 0.05 ml/kg) and all doses of crocin decreased this effect of diazinon. In all doses vitamin E, crocin and safranal did not inhibit the effect of diazinon on RBC cholinesterase activity. A significant increase in micronucleus indices was seen with diazinon. Vitamin E, safranal and crocin could not prevent this genotoxicity. This study showed that vitamin E, safranal and crocin (without effects on cholinesterase) reduced diazinon hematological toxicity, but they did not prevent the genotoxicity induced by diazinon.
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