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 6

Prenatal opioid exposure induced cell apoptosis in the ventral-medial striatum of neonatal rat offspring (P14). Colocalization of NeuN- (red for neuron identification) and TUNEL- (green for apoptotic cells) sensitive cells was recognized by double immunofluorescence staining with laser-scanning confocal microscopy. The NeuN-sensitive cells (panel 1), TUNEL-sensitive cells (panel 2), and the combined pictures of the NeuN- and TUNEL-sensitive cells (panel 3) are as follows: the control (a1–a3), the early group (b1–b3), and the late group (c1–c3), respectively. The dotted circles reveal representative apoptotic neurons. μm.
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