cytotoxic effect of extract leaves of t. kotschyanus boiss. & hohen on human lang cell

abstract cytotoxic effect of extract leaves of t. kotschyanus boiss. & hohen on human lang cell. t. kotschyanus boiss. & hohen was used in traditional medicine such as anti-inflammation, antispasmodic and gastrointestinal aim of this study was to survey the cytotoxic effects the of ethanol of leave of thymus kotschyanus on a-549 cell line. t. kotschyanus was collected on spring 2014 from selseleh regions of lorestan province leaves plant for 3 days at room temperature. dried herd powder was and extract ethanol. after preparing extract 25, 50, 100, 20, 500 μg/ml concentration for extract leveas t. kotschyanus on the cells were evaluated for 7 2 hours. cytotoxic effects of t. kotschyanus extract leveas t. kotschyanus against cancer cell was measured by using spss. results shows that, the extracts leaves ethanol t. kotschyanus has cytotoxic effects on a-549 cell lien. the finding suggest that extracts ethanol leaves t. kotschyanus to existence phenolic compounds, especially flavonoids has an inhibitory effect on the a-549 cell line.