Over the past 40 years, both at UCLA and at Tulane, Dr. Sikka successfully developed andrology research programs focused in areas of male reproduction, ED, and PD. His current research interests center around understanding the role of oxidative stress and genitourinary inflammation related to such urological disorders, employing many technologically advanced cellular and molecular tools. He has trained many students, residents, & fellows in his labs, and he has so far published more than 220 peer-reviewed articles, many book chapters, and numerous abstracts. He recently wrote a book entitled, Bioenvironmental Issues Affecting Male Reproductive & Sexual Health. He has also served as a Study Section reviewer for the Environmental Protection Agency (EPA) and other agencies in this area of male reproductive toxicology. His invited presentations delivered in these areas at many national and international meetings are well acknowledged.