In 2007, Cannabis constituent protects against myocardial ischemic reperfusion injury. Using ischemic rat hearts.

BACKGROUND: In vivo studies, the left anterior descending coronary artery was transiently ligated for 30 min, and the rats were treated for 7 days with CBD or vehicle. Cardiac function was studied by echocardiography. Ex vivo evaluation, CBD was administered 24 and 1 h before the animals were killed, and hearts were harvested for physiological measurements.

You can read the full article here => http://ajpheart.physiology.org/content/293/6/H3602.long