Sperm Stored in Lifor (video) Kumamoto University Loading video... Caption Cauda epididymides were taken from sacrificed male mice and stored in Lifor (Lifeblood Medical Inc., NJ, USA) perfusion medium at 4C for 7 days. After storage, sperm were isolated and incubated in BSA-free Toyoda Yokoyama Hoshi medium containing 0.75 mM MBCD and 1.0 mg/mL polyvinyl alcohol for 60 min. Credit Professor Naomi Nakagata Usage Restrictions This video may only be used in conjunction with the accompanying release, or stories written about the work described in the release with reference to the original work. 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.