Cited by 89Cannabis and Cannabinoid ResearchRetinal Diseases and TreatmentsFatty Acid Research and Health

Changes in endocannabinoid and palmitoylethanolamide levels in eye tissues of patients with diabetic retinopathy and age-related macular degeneration

Matias, I., Wang, J.W., Moriello, A. Schiano, Nieves, A., Woodward, D.F., Di Marzo, V.·2006·Prostaglandins Leukotrienes and Essential Fatty Acids

Abstract

Cannabinoid receptors and the endocannabinoids (anandamide (N-arachidonoylethanolamine--AEA) and 2-arachidonoylglycerol (2-AG)), as well as the AEA congener, palmitoylethanolamide (PEA), are involved in ocular physiology. We measured endocannabinoid and PEA levels by isotope-dilution liquid chromatography-mass spectrometric analysis in post-mortem eye tissues of patients with diabetic retinopathy (DR) or age-related macular degeneration (AMD). In eyes with DR, significantly enhanced levels of AEA were found in the retina ( approximately 1.8-fold), ciliary body ( approximately 1.5-fold) and, to a lesser extent, cornea ( approximately 1.3-fold). Surprisingly, 2-AG levels were significantly higher ( approximately 3-fold) only in the iris, whereas PEA levels only slightly increased ( approximately 1.3-fold) in the ciliary body. In eyes with AMD, significantly enhanced levels of AEA were found in the choroid ( approximately 1.3-fold), ciliary body ( approximately 1.4-fold) and cornea ( approximately 1.4-fold), whereas in the retina only a trend towards an increase ( approximately 1.5-fold) was observed. The tissue- and disease-selective nature of the changes observed suggests that the compounds analyzed here may play different roles in the control of eye function under different pathological conditions.

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Crossref · 10.1016/j.plefa.2006.08.002

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Authors
Matias, I., Wang, J. W., Moriello, A. S., Nieves, A., Woodward, D. F., & Di Marzo, V.
Affiliations
  • Istituto di Chimica Biomolecolare (IT)
  • Allergan (United States) (US)
Venue
Prostaglandins Leukotrienes and Essential Fatty Acids
Publisher
Elsevier BV
Published
2006-12
Volume
75
Issue
6
Pages
413-418
ISSN
0952-3278 (ISSN-L)
OpenAlex
W1987760348
Cited by
89
References
52
Citations by year
2026: 1 · 2025: 7 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 9 · 2019: 4 · 2018: 4 · 2017: 7 · 2016: 5 · 2015: 6 · 2014: 4 · 2013: 5 · 2012: 2
FWCI
1.67
Type
journal article
Language
en
Open access
closed
Locations
  • Prostaglandins Leukotrienes and Essential Fatty Acids (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
Keywords
endocannabinoids, palmitoylethanolamide, anandamide, 2-arachidonoylglycerol, diabetic retinopathy, age-related macular degeneration, ocular tissues, retina, ciliary body, choroid, cornea, iris
MeSH terms
Amides, Arachidonic Acids, Diabetic Retinopathy, Ethanolamines, Eye, Glycerides, Humans, Macular Degeneration, Palmitic Acids, Up-Regulation, Polyunsaturated Alkamides, Cannabinoid Receptor Modulators, Endocannabinoids

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