What question did this study set out to answer?

To determine whether prolonged morphine administration in neonatal rats induces apoptotic cell death in the developing brain in vivo.

March 7, 2013International Journal of Developmental NeuroscienceOpen Access

Morphine‐enhanced apoptosis in selective brain regions of neonatal rats

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DBDusica BajicBoston Children's Hospital KCKathryn G. CommonsBoston Children's Hospital SSSulpicio G. SorianoBoston Children's Hospital

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Implication

Controlled animal study reveals increased neuroapoptosis in the cortex and amygdala of neonatal rats, suggesting region-specific vulnerability to prolonged opioids.

Key Points

To determine whether prolonged morphine administration in neonatal rats induces apoptotic cell death in the developing brain in vivo.
Neonatal rats were divided into three groups: naive (n = 6), normal saline control (n = 5), and morphine-treated (n = 8).
Morphine sulfate or normal saline was injected subcutaneously twice daily for 6.5 days starting on postnatal day 1.
Apoptosis in neurons and glia was evaluated on postnatal day 7 using cleaved caspase-3 immunofluorescence paired with cell-specific markers across multiple brain regions.
Morphine administration significantly increased the density of apoptotic cells in the cortex and amygdala compared to controls on postnatal day 7.
Apoptosis was not significantly altered in the hippocampus, hypothalamus, or periaqueductal gray.
Dying cells exhibited neuronal morphology, with minimal cleaved caspase-3 positivity detected in microglia and none observed in astrocytes.

Cite This Study

Bajic et al. (2013) studied this question.

synapsesocial.com/papers/6a2003c92065d284090dcd93 https://doi.org/10.1016/j.ijdevneu.2013.02.009

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Implication

Controlled animal study reveals increased neuroapoptosis in the cortex and amygdala of neonatal rats, suggesting region-specific vulnerability to prolonged opioids.

Morphine‐enhanced apoptosis in selective brain regions of neonatal rats

Discussion

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Implication

Key Points

Cite This Study

Morphine‐enhanced apoptosis in selective brain regions of neonatal rats

Discussion

Member takes

Implication

Key Points

Cite This Study

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