Dr. Ishizuka has a Ph.D. in veterinary medicine from Hokkaido University, Japan. Her specialized area is toxicology, and she has an interest in xenobiotic metabolisms, including species differences in phase I and II enzymes of cytochrome P450 and glucuronosyl transferase. In addition, her research subject is the effects of environmental chemicals such as heavy metals, POPs, food additives, and pesticides on "One Health". She is a member of expert committees of the Central Environment Council (Ministry of Environment), the Pharmaceutical Affairs and Food Sanitation Council (veterinary drugs, Ministry of Agriculture, Forestry, and Fisheries), and the Food Safety Commission of Japan (veterinary drugs and food additives). She is also a member of the Science Council of Japan.