Research Article

Enhanced H3K4 Trimethylation in TNF-α Promoter Gene Locus with Cell Apoptosis in the Ventral-Medial Striatum following Opioid Withdrawal of Neonatal Rat Offspring from Morphine-Addicted Mothers

Figure 2

Observations of opioid-withdrawal behaviors in rat offspring on P14. (a) The rat offspring which were observed for 2 h starting from the 6th hour after transfer (the late group) exhibited shorter latency in exhibiting opioid-withdrawal behaviors. (b) There were more opioid-withdrawal behaviors in a 2 h period in the late group. 1: rearing; 2: teeth chattering; 3: backward locomotion; 4: tremor; 5: wet-dog shaking. Each group was derived from independent 48 rats, respectively. , compared to the control group.
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