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Kosiakova H, Berdyshev A, Horid'ko T, Meged O, Klimashevsky V, Matsokha R, Tkachenko O, Asmolkova V, Kvitnitskaya-Ryzhova T, Luhovskyi S, Klymenko P, Hula N. N-Stearoylethanolamine Exerts Cardioprotective Effects in Old Rats. Curr Aging Sci 2024; 17:144-155. [PMID: 38279735 DOI: 10.2174/0118746098275323231226073348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/07/2023] [Accepted: 11/17/2023] [Indexed: 01/28/2024]
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.
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Affiliation(s)
- Halyna Kosiakova
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Andrii Berdyshev
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Tetyana Horid'ko
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Olena Meged
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Vitaliy Klimashevsky
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Roza Matsokha
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Oksana Tkachenko
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Valentina Asmolkova
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
| | - Tetyana Kvitnitskaya-Ryzhova
- DF Chebotarev Institute of Gerontology of the National Academy of Medical Sciences of Ukraine, Vyshgorodska Str, 67, Kyiv, 04114, Ukraine
| | - Serhii Luhovskyi
- DF Chebotarev Institute of Gerontology of the National Academy of Medical Sciences of Ukraine, Vyshgorodska Str, 67, Kyiv, 04114, Ukraine
| | - Pavlo Klymenko
- DF Chebotarev Institute of Gerontology of the National Academy of Medical Sciences of Ukraine, Vyshgorodska Str, 67, Kyiv, 04114, Ukraine
| | - Nadiya Hula
- OV Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, Leontovich Str, 9, Kyiv, 03160, Ukraine
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Wen DT, Zheng L, Li JX, Lu K, Hou WQ. The activation of cardiac dSir2-related pathways mediates physical exercise resistance to heart aging in old Drosophila. Aging (Albany NY) 2019; 11:7274-7293. [PMID: 31503544 PMCID: PMC6756900 DOI: 10.18632/aging.102261] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/02/2019] [Indexed: 01/30/2023]
Abstract
Cardiac aging is majorly characterized by increased diastolic dysfunction, lipid accumulation, oxidative stress, and contractility debility. The Sir2/Sirt1 gene overexpression delays cell aging and reduces obesity and oxidative stress. Exercise improves heart function and delays heart aging. However, it remains unclear whether exercise delaying heart aging is related to cardiac Sir2/Sirt1-related pathways. In this study, cardiac dSir2 overexpression or knockdown was regulated using the UAS/hand-Gal4 system in Drosophila. Flies underwent exercise interventions from 4 weeks to 5 weeks old. Results showed that either cardiac dSir2 overexpression or exercise remarkably increased the cardiac period, systolic interval, diastolic interval, fractional shortening, SOD activity, dSIR2 protein, Foxo, dSir2, Nmnat, and bmm expression levels in the aging flies; they also notably reduced the cardiac triacylglycerol level, malonaldehyde level, and the diastolic dysfunction index. Either cardiac dSir2 knockdown or aging had almost opposite effects on the heart as those of cardiac dSir2 overexpression. Therefore, we claim that cardiac dSir2 overexpression or knockdown delayed or promoted heart aging by reducing or increasing age-related oxidative stress, lipid accumulation, diastolic dysfunction, and contractility debility. The activation of cardiac dSir2/Foxo/SOD and dSir2/Foxo/bmm pathways may be two important molecular mechanisms through which exercise works against heart aging in Drosophila.
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Affiliation(s)
- Deng-Tai Wen
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha 410012, Hunan Province, China.,Ludong University, Yantai 264025, Shan Dong Province, China
| | - Lan Zheng
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha 410012, Hunan Province, China
| | - Jin-Xiu Li
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha 410012, Hunan Province, China
| | - Kai Lu
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha 410012, Hunan Province, China
| | - Wen-Qi Hou
- Ludong University, Yantai 264025, Shan Dong Province, China
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Charbonneau A, Melancon A, Lavoie C, Lavoie JM. Alterations in hepatic glucagon receptor density and in Gsalpha and Gialpha2 protein content with diet-induced hepatic steatosis: effects of acute exercise. Am J Physiol Endocrinol Metab 2005; 289:E8-14. [PMID: 15687107 DOI: 10.1152/ajpendo.00570.2004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study was undertaken to test the hypothesis that a high-fat diet-induced liver lipid infiltration is associated with a reduction of hepatic glucagon receptor density (B(max)) and affinity (K(d)), and with a decrease in stimulatory G protein (G(s)alpha) content while enhancing inhibitory G protein (G(i)alpha(2)) expression. We also hypothesized that, under this dietary condition, a single bout of endurance exercise would restore hepatic glucagon receptor parameters and G protein expression to standard levels. Female Sprague-Dawley rats were fed either a standard (SD) or a high-fat diet (HF; 40% kcal) for 2 wk (n = 20 rats/group). Each dietary group was thereafter subdivided into a nonexercised (Rest) and an acute-exercised group (Ac-Ex). The acute exercise consisted of a single bout of endurance exercise on a treadmill (30 min, 26 m/min, and 0% slope) immediately before being killed. The HF compared with the SD diet was associated with significantly (P < 0.05) higher values in hepatic triglyceride concentrations (123%), fat pad weight, and plasma free fatty acid (FFA) concentrations. The HF diet also resulted in significantly (P < 0.05) lower hepatic glucagon receptor density (45%) and G(s)alpha protein content (75%), as well as higher (P < 0.05) G(i)alpha(2) protein content (27%), with no significant effects on glucagon receptor affinity. Comparisons of all individual liver triglyceride and B(max) values revealed that liver triglycerides were highly (P < 0.003) predictive of the decreased glucagon receptor density (R = -0.512). Although the 30-min exercise bout resulted in some typical exercise effects (P < 0.05), such as an increase in FFA (SD diet), a decrease in insulin levels, and an increase in plasma glucagon concentrations (SD diet), it did not change any of the responses related to liver glucagon receptors and G proteins, with the exception of a significant (P < 0.05) decrease in G(i)alpha(2) protein content under the HF diet. The present results indicate that the feeding of an HF diet is associated with a reduction in plasma membrane hepatic glucagon receptor density and G(s)alpha protein content, which is not attenuated by a 30-min exercise bout. It is suggested that liver lipid infiltration plays a role in reducing glucagon action in the liver through a reduction in glucagon receptor density and glucagon-mediated signal transduction.
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Affiliation(s)
- Alexandre Charbonneau
- Département de Kinésiologie, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montreal, QC, Canada, H3C 3J7
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Mahay S, Pariente JA, Lajas AI, Adeghate E, Rolph CE, Singh J. Effects of ageing on morphology, amylase release, cytosolic Ca2+ signals and acyl lipids in isolated rat parotid gland tissue. Mol Cell Biochem 2005; 266:199-208. [PMID: 15646043 DOI: 10.1023/b:mcbi.0000049158.85447.4f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Xerostomia (oral dryness sensation) is due to dryness of the oral cavity and it is more prevalent in the elderly. This study investigated the effect of ageing on parotid gland structure and function of control (2-6 months) and aged (12, 16-18 and 22-24 months) rats employing light microscopic, colorimetric, gas chromatographic and microspectrofluorimetric methods to investigate the morphological changes of the parotid glands, amylase release, endogenous lipid distribution and cytosolic free calcium levels, respectively. When compared to controls, age-related changes were apparent in glands obtained from rats aged 16-18 and 22-24 months, which included reduced acinar cell distribution, enlarged parotid ducts with fatty and connective tissue and mast cell infiltrations. Parotid acini from 12, 16-18 and 22-24-month-old glands showed significant (p < 0.05) age-related decreases in amylase release, compared to controls when challenged with acetylcholine (ACh). No change in basal calcium signals was observed in parotid acini from 2-6 to 16-18-month-old-animals. However, stimulation of 16-18-month-old parotid acini with 10(-5)M ACh resulted in a significant (p < 0.001) decrease in both peak and plateau phases of the cytosolic Ca2+ signal when compared to control. Gas chromatography of de novo and essential acyl lipids revealed no changes in the amount of either acyl lipid group in glands obtained from 2-6 to 22-24-month-old animals. Lipid analysis of phospholipid associated acyl chains showed a higher relative proportion of linoleic acid in older glands. The results reveal that ageing is associated with marked and distinct morphological changes including infiltrations of lipids and mast cells of the parotid gland and decreases in amylase release and cytosolic Ca2+ signals.
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Affiliation(s)
- Sukhbinder Mahay
- Department of Biological Sciences, University of Central Lancashire, Prestonn, UK
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