Research Article

Electroacupuncture-Induced Dynamic Processes of Gene Expression Levels of Endogenous Opioid Peptide Precursors and Opioid Receptors in the CNS of Goats

Table 8

M-ENK immunoactivities in the CNS of goats stimulated by EA (mean ± SD, ).

Nuclei and areasSham control−0.5 h0 h2 h4 h6 h8 h12 h24 hCorrelation with pain threshold ( )

ACB c c a b b c c c c0.874**
CAU d d a ab bc cd bc d d0.819**
AMY g g a b cd bc de f ef0.808**
PVH c c a a b bc b bc b0.729**
VMH e e a b b d bc c d0.848**
PAG e e a b c d cd c c0.748**
DR e e a b bc de cd bc cd0.759**
HB cd cd a a b b bc16.75 ± 2.35bcd d0.837**
PBN e e a a b cd bc d d0.857**
GI d d a a bc bc d cd b0.605**
SOL g g a b c e d de f0.911**

**Means the levels of M-ENK correlate with the pain threshold at the 0.01 level.