Activation of Opioid Receptors Attenuates Ischemia/Reperfusion Injury in Skeletal Muscle Induced by Tourniquet Placement

Figure 2

Morphology changes in gastrocnemius muscle tissues in response to tourniquet placement. (a) Representative histology in longitudinal and transverse sections of gastrocnemius muscles stained with hematoxylin-eosin. (b) Representative histology in cross and lengthwise sections of gastrocnemius muscles stained with Masson’s trichrome. Arrows indicate the site of muscle injury. (c) Summary data of histology damage scores in sham, I/R, and I/R plus Oxy groups. I/R: ischemia-reperfusion; Oxy: oxycodone ( in each group).

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