5.Methods: seventy two 3-month old female wistar rats were randomly divided into four groups—BEMF group (group A, n=18), calcitonin group(group B,n=18), desamethasone group(group C,n=18)and control group(group D,n=18).
6.Methods 128 wistar rats were divided randomly into four groups: Group A (Control, n=32), Group B (AP, n=32), Group C (AP + NAC, n=32), Group D (AP + NAC, n=32).
7.Compare to the normal group, the normal intervention group (14.58 1.19ms; 4.53?.93ms) largely shortened the PL of Nl wave and IPL of wave P1-N1 (P<0.05) .