Placebo (IMAGE) Medical Research Council Caption This is a Huntingtin protein (green) accumulated in the cells from the brains of mice given a placebo. Credit Krzyzosiak et al./ Cell Usage Restrictions None License Licensed 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.