University of Macau, Avenida da Universidade 1 article published in JoVE Neuroscience Brain Ventricular Microinjections of Lipopolysaccharide into Larval Zebrafish to Assess Neuroinflammation and Neurotoxicity Yulin He1, Simon Ming Yuen Lee1,2 1State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, 2Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Avenida da Universidade This protocol demonstrates the microinjection of lipopolysaccharide into the brain ventricular region in a zebrafish larval model to study the resulting neuroinflammatory response and neurotoxicity.