Safety assessment of ethanolic root extract of Zaleya decandra (EEZD) in Wistar rats.

Regulatory Toxicology and Pharmacology : RTP
Malarvizhi DeivasigamaniHariprasath Lakshmanan

Abstract

Zaleya decandra is a prostrate, glabrous, succulent herb of the family Aizoaceae. In recent years the pharmacological efficacy of the plant such as the hepatoprotective, antimicrobial, antidiabetic, anti-inflammatory and anticancer activities has been reported. However, a long-term toxicity study of Z. decandra is yet to be carried out. In the present study, the acute dose of 2000 mg/kg b.w. of ethanolic extract of Z. decandra (EEZD) administered orally to Wistar rats gained gradual weight with time and appeared healthy without any record of mortality. In the sub-chronic toxicity study, the rats showed no remarkable increase or decrease in their weight even at the highest dose of 500 mg/kg b.w. The haematological, biochemistry and serum marker enzyme parameters did not show any dose dependent change in the values. Further, the histology micrographs confirmed that the tissue architecture of all the vital organs were not affected by EEZD treatment. Hence, the EEZD (500 mg/kg b.w.) is considered safe for a 90-day period. Therefore, the present study warrants extensive investigation of EEZD using higher pre-clinical model system to substantiate the findings. The GC-MS analysis revealed the presence of 39 phytoconstituents including...Continue Reading

References

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Oct 5, 2019·Current Drug Safety·Nuno Sales CraveiroSofia Fraga Almeida

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