Figure 4.

Platelets in severe and moderate heatstroke. Platelet aggregation was not seen in the samples from healthy control rats. By contrast, it was frequently seen in the samples from severe heatstroke rats (a). In addition, a large platelet (arrowhead) and a giant platelet are often observed (b). The presence of these immature platelets will be the reaction to platelet aggregation. Platelet aggregation was also seen in moderate heatstroke model of rats at 90 min (core body temperature was approximately 41.5 °C, (c). The aggregation became less frequent at 120 min when the body temperature returned to 37.5 °C (d).