ABSTRACT
Objective To study the effects and mechanism of Yunnan Baiyao on the inflammatory response and satellite cell regeneration after acute injury of skeletal muscle in rats. Methods Rat models of skeletal muscle injury (gastrocnemius,fast twich;soleus,slow twich) induced by treadmill were constructed 24 h after establishment of the models,the left sides of hind limbs in rats were treated with Yunnan Baiyao,and the right sides were treated with saline at the equal volume.4 rats were chosen 2,4,7,10,14 d after injury,respectively,and gastrocnemius and soleus of the treated sides (the left sides) and untreated sides (the right sides) from hind limbs of 4 rats were obtained,and stained with immunohistochemistry and HE. The quantity and morphological changes of inflammatory cells and satellite cells were observed under optical microscope. Results Compared with untreated sides,the number of inflammatory cells of fast twich after injury in the treated sides was decreased obviously at the 2nd,4th,7th day after injury(P
ABSTRACT
Objective To study the influence of interim overload exercise on health and it's biochemical mechanism.Methods 45 Wistar rats were randomly divided to three groups(n=15):no exercises group(control,C),normal exercise group(NE,the rats ran in the animal running machines at 15 m?min-1for 5 d in one week,exercise time was 30 min?2,and rested for 10 min after ran for 30 min),overload exercise group(OE,the rats exercised 2 bouts,2 d in consecutive in one week,exercise time was 100 min?2,and they rested for 10 min after ran for 100 min).After training for 8 weeks,the rats in three groups were sacrificed and 15 biochemical indexes in blood of rats were determined.Results Compared with C and NE groups,CK,LDH,and ALT increased obviously(P