Cited by 328Cannabis and Cannabinoid ResearchStress Responses and CortisolFatty Acid Research and Health

Circulating endocannabinoids and N-acyl ethanolamines are differentially regulated in major depression and following exposure to social stress

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Hill, Matthew N., Miller, Gregory E., Carrier, Erica J., Gorzalka, Boris B., Hillard, Cecilia J.·2009·Psychoneuroendocrinology

Abstract

Central endocannabinoid signaling is known to be responsive to stressful stimuli; however, there is no research to date characterizing the effects of stress on peripheral endocannabinoid content. The current study examined serum content of the endocannabinoid ligands N-arachidonylethanolamide (anandamide; AEA) and 2-arachidonoylglycerol (2-AG), and the non-cannabinoid N-acyl ethanolamine (NAE) molecules palmitoylethanolamide (PEA) and oleoylethanolamide (OEA) under basal conditions, immediately following the Trier Social Stress Test (TSST), and 30 min thereafter, in 15 medication-free women diagnosed with major depression, and 15 healthy matched controls. Basal serum concentrations of AEA and 2-AG, but not PEA or OEA, were significantly reduced in women with major depression relative to matched controls, indicating a deficit in peripheral endocannabinoid activity. Immediately following the TSST, serum 2-AG concentrations were increased compared to baseline; serum AEA concentration was unchanged at this time point. Serum concentrations of PEA and OEA were significantly lower than baseline 30 min following the cessation of the TSST. The magnitude of these responses did not differ between depressed and control subjects. These are the first data to demonstrate that the peripheral endocannabinoid/NAE system is responsive to exposure to stress.

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Crossref · 10.1016/j.psyneuen.2009.03.013

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Authors
Hill, M. N., Miller, G. E., Carrier, E. J., Gorzalka, B. B., & Hillard, C. J.
Affiliations
  • University of British Columbia (CA)
  • Medical College of Wisconsin (US)
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
2009-09
Volume
34
Issue
8
Pages
1257-1262
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2097199164
Cited by
328
References
30
Citations by year
2026: 14 · 2025: 22 · 2024: 29 · 2023: 19 · 2022: 25 · 2021: 37 · 2020: 23 · 2019: 22 · 2018: 22 · 2017: 17 · 2016: 15 · 2015: 18 · 2014: 8 · 2013: 20 · 2012: 12
FWCI
8.62
Type
journal article
Language
en
Open access
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Drug Abuse (R01DA009155)
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
Keywords
endocannabinoids, N-acylethanolamines, major depressive disorder, social stress, anandamide, 2-arachidonoylglycerol, palmitoylethanolamide, oleoylethanolamide, serum biomarkers, Trier Social Stress Test, women, stress response
MeSH terms
Adult, Amides, Arachidonic Acids, Major Depressive Disorder, Ethanolamines, Female, Glycerides, Humans, Oleic Acids, Palmitic Acids, Stress, Psychological, Case-Control Studies, Polyunsaturated Alkamides, Cannabinoid Receptor Modulators, Endocannabinoids

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