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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Increased activity of the hypothalamic-pituitary-adrenal axis of rats exposed to alcohol in utero: role of altered pituitary and hypothalamic function.

Prenatal exposure to ethanol ( E) enhances the offspring's ACTH and corticosterone responses to stressors. Here, we determined the role of increased pituitary responsiveness and/or PVN neuronal activity in this phenomenon. Pregnant rats were exposed to E vapors during days 7-18 of gestation, and we compared the responses of their 55- to 60-day-old offspring ( E rats) to those of control (C) dams. PVN mRNA levels of the immediate early genes (IEGs) c-fos and NGFI-B, which were low under basal conditions in all groups, showed a peak response 15 min after shocks and 45 min after LPS treatment. These responses were significantly enhanced in E, compared to C offspring of both genders. CRF, but not VP hnRNA levels were also significantly higher in the PVN of shocked E offspring. Resting median eminence content of CRF and VP, and pituitary responsiveness to CRF, were unchanged, while responsiveness to VP was marginally increased in females. These results indicate that prenatal alcohol selectively augments the neuronal activity of hypothalamic CRF perikarya.[1]

References

  1. Increased activity of the hypothalamic-pituitary-adrenal axis of rats exposed to alcohol in utero: role of altered pituitary and hypothalamic function. Lee, S., Schmidt, D., Tilders, F., Rivier, C. Mol. Cell. Neurosci. (2000) [Pubmed]
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