We have confirmed vasospasm-preventive effects of trehalose solution using rat femoral vasospasm model. In this study, femoral arteries are exposed to �@saline �A autologous blood + saline, and �B autologous blood + trehalose solution. Each result was compared (please refer to the following "cross-section arteries") . In �@saline group and �B autologous blood + trehalose solution goup, diameter ratio of vessels are broaden, whereas arterial stenosis is observed in �Aautologous blood + saline group.

Saline                              blood + saline                    blood + trehalose

Cross section of femoral arteries