Journal article
Rapid elevations in limbic endocannabinoid content by glucocorticoid hormones in vivo
Psychoneuroendocrinology, Vol.35(9), pp.1333-1338
2010
Handle:
https://hdl.handle.net/2376/109062
PMCID: PMC2914801
PMID: 20399021
Abstract
Functional interactions between glucocorticoids and the endocannabinoid system have been repeatedly documented; yet, to date, no studies have demonstrated
in vivo that glucocorticoid hormones regulate endocannabinoid signaling. We demonstrate that systemic administration of the glucocorticoid corticosterone (3 and 10
mg/kg) resulted in an increase in the tissue content of the endocannabinoid
N-arachidonylethanolamine (AEA) within several limbic structures (amygdala, hippocampus, hypothalamus), but not the prefrontal cortex, of male rats. Tissue AEA content was increased at 10
min and returned to control 1
h post-corticosterone administration. The other primary endocannabinoid, 2-arachidonoylglycerol, was found to be elevated by corticosterone exclusively within the hypothalamus. The rapidity of the change suggests that glucocorticoids act through a non-genomic pathway. Tissue contents of two other
N-acylethanolamines, palmitoylethanolamide and oleolyethanolamide, were not affected by corticosterone treatment, suggesting that the mechanism of regulation is neither fatty acid amide nor
N-acylphosphatidylethanolamine phospholipase D. These data provide
in vivo support for non-genomic steroid effects in mammals and suggest that AEA is a mediator of these effects.
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Details
- Title
- Rapid elevations in limbic endocannabinoid content by glucocorticoid hormones in vivo
- Creators
- Matthew N Hill - Laboratory of Neuroendocrinology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USAIlia N Karatsoreos - Laboratory of Neuroendocrinology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USACecilia J Hillard - Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USABruce S McEwen - Laboratory of Neuroendocrinology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA
- Publication Details
- Psychoneuroendocrinology, Vol.35(9), pp.1333-1338
- Academic Unit
- Integrative Physiology and Neuroscience, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900547103601842
- Language
- English
- Resource Type
- Journal article