Preparation of BSA complexed free fatty acids for in vitro studies v1

This protocol describes the steps to prepare a fatty acid:BSA complex in cell culture media. It is suitable for the treatment of primary tissue (eg. isolated islets) and cell lines in ex vivo culture. Briefly, fatty acid stock solutions are prepared and complexed with BSA prior to dilution in culture media. Final fatty acid concentrations range from 0.125 to 0.5 mM. We recommend replacing the fatty acid mixture once each day throughout the treatment.