N-Stearoylethanolamine Exerts Cardioprotective Effects in Old Rats

Halyna      Kosiakova; Andrii      Berdyshev; Tetyana      Horid’ko; Olena      Meged; Vitaliy      Klimashevsky; Roza      Matsokha; Oksana      Tkachenko; Valentina      Asmolkova; Tetyana      Kvitnitskaya-Ryzhova; Serhii      Luhovskyi; Pavlo      Klymenko; Nadiya      Hula

Abstract

Background: Aging is associated with the slowing down of metabolic processes, diminished physiological processes, changes in hormonal activity and increasing exposure to oxidative stress factors and chronic inflammation. The endocannabinoid system (ECS) is a major signaling network that plays a pro-homeostatic role in the central and peripheral organs of the human body. A class of minor lipids, N-acylethanolamines (NAEs), which do not activate cannabinoid receptors, except for anandamide, but can potentiate the action of endocannabinoids and have a wide spectrum of biological activity and significant adaptogenic potential, belongs to ECS. The results of different studies over the past decades have established the protective effect of NAE on many pathological conditions.

Objective: This study aimed to investigate the cardioprotective effects of C18:0 NAE— N-stearoylethanolamine (NSE) in aged rats. In this study, we focused on investigating the effects of C18:0 NAE— N-stearoylethanolamine (NSE) on the intensity of oxidative/ nitrosative stress, antioxidant potential, lipoprotein profile and inflammation markers of blood plasma, phospholipid composition and age-related morphological changes of old rat heart tissues.

Methods: The study was conducted on Sprague Dawley male laboratory rats. The three groups of rats were involved in the study design. The first group consisted of young rats aged 4 months (n=10). The second (n=10) and third (n=10) groups included old rats aged of 18 months. Rats from the third group were administered a per os aqueous suspension of NSE at a dose of 50 mg/kg of body weight daily for 10 days. All groups of rats were kept on a standard vivarium diet. The blood plasma, serum, and heart of rats were used for biochemical and histological analysis.

Results: The cardioprotective effect of N-stearoylethanolamine in old rats was established, which was expressed in the normalization of the antioxidant system condition and the level of proinflammatory cytokines, positive modulation of blood plasma and lipoprotein profile, normalization of heart tissue lipid composition, and significant reduction in age-related myocardium morphological changes.

Conclusion: The revealed effects of N-stearoylethanolamine can become the basis for developing a new drug for use in complex therapy to improve the quality of life of older people.

Keywords: N-stearoylethanolamine, aging, antioxidant enzymes, lipid peroxidation, proinflammatory cytokines, nitric oxide, phospholipids, cholesterol, rats.

Graphical Abstract

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Cite As

Current Aging Science

N-Stearoylethanolamine Exerts Cardioprotective Effects in Old Rats

Abstract

Graphical Abstract