Petronella Kettunen received her PhD in Neuroscience at the Karolinska Institutet in 2004. After her PhD she was a postdoctoral fellow at UCLA and later did a sabbatical stay at University of Oxford. She is now an associate professor at the Department of Neuroscience and Physiology at University of Gothenburg and the co-director of the Centre for Cognitive Medicine. Current research in her lab focused on understanding the molecular pathways underlying brain functions by using the zebrafish, with specific focus on the role of microgliain the healthy brain and in neurodegenerative disorders, such as Alzheimer’s disease. Moreover, her lab investigates welfare parameters for zebrafish, to update general guidelines for zebrafish housing and handling.