Mouse kidneys (IMAGE) University of British Columbia Caption Blood vessels in mouse kidneys were coated with a special polymer, which helped prevent the recipient mouse's immune system from rejecting them after a transplant. Credit Dr. Erika Siren Usage Restrictions none License Original content 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.