en Diethyl Phthalate Causes Oxidative Stress: An in Vitro Study تخصصي Special پژوهشي Research <b>Background:</b> Phthalates are a group of multifunctional chemicals. Diethyl phthalate (DEP) is one of the most frequently used phthalates in solvents and fixatives for numerous industrial products. <br> <b>Method:</b> The present experiment was designed to assess oxidative stress, if any, caused by diethyl phthalate. For this the homogenates of liver and kidney were treated with different concentrations ( 10-40 µg/mL) of DEP. 10% liver and kidney homogenates were prepared in phosphate buffered saline and used for estimation of lipid peroxidation.In final step lipid peroxidation and total protein content were analyzed. <br> <b>Results:</b> The result revealed significant and dose - dependent increase in lipid peroxidation, whereas protein content reduced significantly. Maximum increase in LPO and decrease in protein content was observed at 40 µg/mL of DEP concentration. <br> <b>Conclusion:</b> From this study, it can be concluded that different concentrations of DEP leads to dose- dependent significant increase in lipid peroxidation and decrease protein content.So at the different concentration of DEP cause oxidative stress. Diethyl Phthalate, Lipid Peroxidation, Oxidative Stress, Protein Content Diethyl Phthalate, Lipid Peroxidation, Oxidative Stress, Protein Content 1011 1016 http://ijt.arakmu.ac.ir/browse.php?a_code=A-10-2-152&slc_lang=en&sid=1 Heena Prajapati Heena Prajapati 10031947532846002768 10031947532846002768 No Department of Zoology, School of Sciences, Gujarat University, Ahmedabad, India Department of Zoology, School of Sciences, Gujarat University, Ahmedabad, India Ramtej Jayram Verma Ramtej Jayram Verma ramtejverma2000@yahoo.com 10031947532846002769 10031947532846002769 Yes Department of Zoology, School of Sciences, Gujarat University, Ahmedabad, India Department of Zoology, School of Sciences, Gujarat University, Ahmedabad, India