Puffing Induces Axonal Varicosities in Cultured Neurons (video) Rockefeller University Press Share Print E-Mail Loading video... Caption Axonal varicosities appear and then disappear after 'puffing' of cultured neurons with forces that may mimic those associated with concussive impacts to the head. Credit Gu et al., 2017 Usage Restrictions Reporters may freely use these materials in news coverage with the appropriate credit information. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.