. 2013 May 16;2013:257682. doi: 10.1155/2013/257682

Table 8.

M-ENK immunoactivities in the CNS of goats stimulated by EA (mean ± SD, n = 6).

Nuclei and areas	Sham control	−0.5 h	0 h	2 h	4 h	6 h	8 h	12 h	24 h	Correlation with pain threshold (r)
ACB	15.96 ± 1.53^c	16.17 ± 2.03^c	35.76 ± 4.50^a	27.78 ± 2.15^b	23.92 ± 2.03^b	18.47 ± 2.96^c	17.55 ± 0.89^c	17.27 ± 1.91^c	15.37 ± 1.72^c	0.874**
CAU	14.19 ± 1.21^d	13.67 ± 2.88^d	33.06 ± 3.62^a	28.69 ± 2.91^ab	23.48 ± 3.94^bc	17.72 ± 3.65^cd	23.02 ± 3.12^bc	16.21 ± 2.26^d	14.80 ± 2.02^d	0.819**
AMY	10.74 ± 1.55^g	10.62 ± 2.07^g	47.74 ± 5.94^a	37.40 ± 3.14^b	28.69 ± 2.91^cd	34.41 ± 3.69^bc	25.13 ± 2.12^de	18.42 ± 1.05^f	21.16 ± 1.93^ef	0.808**
PVH	17.11 ± 2.28^c	17.68 ± 4.59^c	43.99 ± 5.78^a	37.71 ± 2.98^a	29.18 ± 5.47^b	21.78 ± 2.14^bc	28.14 ± 1.40^b	23.95 ± 4.93^bc	28.41 ± 1.82^b	0.729**
VMH	12.14 ± 1.81^e	11.66 ± 3.21^e	41.24 ± 2.53^a	31.65 ± 3.07^b	29.94 ± 2.72^b	19.48 ± 1.57^d	27.05 ± 2.55^bc	24.85 ± 2.30^c	18.79 ± 1.29^d	0.848**
PAG	8.04 ± 0.84^e	7.91 ± 1.18^e	32.13 ± 2.13^a	26.58 ± 1.00^b	21.04 ± 3.76^c	15.73 ± 1.69^d	18.57 ± 1.32^cd	21.28 ± 1.67^c	21.70 ± 1.53^c	0.748**
DR	11.48 ± 1.64^e	10.92 ± 1.73^e	28.41 ± 1.82^a	22.96 ± 1.94^b	19.32 ± 1.64^bc	14.48 ± 1.06^de	16.94 ± 0.79^cd	20.66 ± 1.46^bc	18.31 ± 0.72^cd	0.759**
HB	16.51 ± 1.44^cd	15.76 ± 1.46^cd	26.19 ± 1.21^a	24.17 ± 1.04^a	19.49 ± 1.75^b	19.06 ± 1.87^b	17.87 ± 1.04^bc	16.75 ± 2.35^bcd	15.52 ± 1.27^d	0.837**
PBN	7.79 ± 1.10^e	6.75 ± 1.24^e	26.80 ± 3.72^a	23.44 ± 1.47^a	19.23 ± 1.62^b	14.02 ± 1.88^cd	16.80 ± 1.87^bc	12.70 ± 1.12^d	11.16 ± 1.53^d	0.857**
GI	11.56 ± 1.27^d	10.51 ± 1.42^d	19.13 ± 1.33^a	18.14 ± 1.09^a	15.03 ± 0.97^bc	14.60 ± 1.14^bc	11.70 ± 1.03^d	12.73 ± 1.47^cd	15.70 ± 1.27^b	0.605**
SOL	14.03 ± 1.77^g	14.44 ± 0.93^g	49.83 ± 1.15^a	40.99 ± 2.05^b	30.82 ± 1.40^c	24.32 ± 1.69^e	27.67 ± 1.34^d	26.48 ± 1.25^de	19.49 ± 1.38^f	0.911**

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