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Dr. Yvonne Thompson Maddox was named Acting Deputy Director, Â鶹´«Ã½ in January 2000 and continued to serve in that role until May 20, 2002. In this position, she guided the organizations and programs within the Office of the Director, NIH and was a chief advisor to the Acting Director, NIH. In addition, Dr. Maddox is the Deputy Director of the National Institute of Child Health and Human Development (NICHD), a position she has held since 1995.

Dr. Maddox received her B.S. in biology from Virginia Union University, Richmond and a Ph.D. in Physiology from Georgetown University. Following completion of the Ph.D., she served as a National Research Service Award (NRSA) Post Doctoral Fellow and as an Assistant Professor of Physiology in the Department of Physiology and Biophysics at Georgetown. She studied as a Visiting Scientist at the French Atomic Energy Commission, Saclay, France, and is a graduate of the Senior Managers in Government Program of the Kennedy School of Government, Harvard University.

Dr. Maddox came to Â鶹´«Ã½ in November 1985 as a health scientist administrator in the National Institute of General Medical Sciences (NIGMS), where she managed the Congressionally mandated clinical and basic research grants program in trauma and burn injury. Following her initial appointment, she served NIGMS in various capacities: Acting Director, Minority Access to Research Careers (MARC) Program; Chief, Pharmacology and Physiological Sciences Section; and Deputy Director, Biophysics and Physiological Sciences Program.

In January 1995, Dr. Maddox joined NICHD as its Deputy Director. At the NICHD, Dr. Maddox manages the institute's diverse extramural program that supports research on population issues, reproductive biology, contraception, pregnancy, child development, nutrition, developmental biology, AIDS, mental retardation, and medical rehabilitation.

During her career ar Â鶹´«Ã½, Dr. Maddox has received numerous honors and awards, including the Presidential Meritorious Executive Rank Award, the Public Health Service Special Recognition Award and the Â鶹´«Ã½ Director's Award. She is a member of the American Physiological Society and serves on several public service and academic boards, including the Center for Development and Population Activities Advisory Board and the Robert Woods Johnson Health Policy Fellowship Advisory Board.

Dr. Maddox is author or coauthor of a number of scientific articles, book chapters and conference proceedings, including the often-cited paper on a method she developed to extract peritoneal macrophages from peritoneal dialysate, "A routine clinical source of peritoneal macrophages and their release of prostaglandins in vitro," which was published in 1984. She has delivered more than 100 lectures.