They evaluated membrane turnover in normal states, renal hypertrophy, and acute renal failure.[6] In 1974, she became assistant dean and was promoted to associate dean and professor of medicine and biochemistry in 1977.[4] From 1978 to 1979, she commuted by plane from Boston to Washington, D.C. to serve in the Carter administration as a medical consultant to the Assistant Secretary for Health.[3] Lowenstein was also a member of study sections at the National Institutes of Health.