Dr. Ansari completed his Ph.D. from Kanpur University, India in the area of Reproductive Toxicology and conducted several postdoctoral studies at University of Nebraska Medical Center, University of Pittsburgh and Case Western Reserve University. Dr. Ansari was Research faculty at University of Arkansas for Medical Sciences, Little Rock, AR and New York Medical College, Valhalla, NY. Dr. Ansari has published more than 30 peer-reviewed articles in reputed journals, has written book chapters and contributed to text books. He has presented his research work in several meetings of national and international repute. Dr. Ansari serves as a reviewer for several journals and is the editorial board member for many journals. Presently, his research focuses on defining the role of environmental factors especially xenobiotics in regulation of human angiotensinogen gene and CYP11B2 as the models of hepatotoxicity and hypertension.