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Macartney MJ, Peoples GE, McLennan PL. Cardiac contractile dysfunction, during and following ischaemia, is attenuated by low-dose dietary fish oil in rats. Eur J Nutr 2021; 60:4495-4503. [PMID: 34120245 DOI: 10.1007/s00394-021-02608-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/02/2021] [Indexed: 12/31/2022]
Abstract
AIMS Supplementing animal diets with high-dose fish oil, rich in long chain omega-3 (ω-3) docosahexaenoic acid (DHA), enhances cardiac contractile efficiency and attenuates dysfunction, attributable to ischaemia. However, it remains unclear whether smaller doses, equivalent to what is achievable via regular fish consumption in the human diet, offer similar protection. METHODS Male Sprague-Dawley (12-15w) rats were fed isoenergetic diets (ad libitum) containing 10% fat by weight (22% energy) for 4-5w. Control diet (CON) contained 5.5% beef tallow; 2.5% ω-6 sunflower seed oil; 2% olive oil. Fish oil diets included high-DHA tuna oil exchanged for olive oil to provide 0.32% (FO1; human equivalent EPA + DHA 570 mg/d) or 1.25% (FO2; equivalent EPA + DHA 2.3 g/d) wt/wt dose of fish oil. Anaesthetised rats (pentobarbital: 60 mg/kg i.p.) were subjected to 45 min coronary artery occlusion then reperfusion in vivo as a whole animal model of regional myocardial ischaemia, with left ventricular haemodynamic function measured by conductance catheter. RESULTS Ischaemia-induced reductions in rate pressure product recovered faster in the FO2 group and post-ischaemic left ventricular pressure-volume loop integrity (shifted downwards and right in CON) was partially protected in both fish oil groups. CONCLUSION Ischaemia-induced contractile dysfunction in rats is limited from fish oil doses equivalent to regular consumption of fish in the human diet. These observations highlight plausible and clinically relevant physiological changes that rationalise nutritional conditioning of the heart with DHA for on-going cardioprotection.
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Affiliation(s)
- Michael J Macartney
- Graduate Medicine, School of Medicine, University of Wollongong, Wollongong, Australia. .,Centre for Medical and Exercise Physiology, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Gregory E Peoples
- Graduate Medicine, School of Medicine, University of Wollongong, Wollongong, Australia.,Centre for Medical and Exercise Physiology, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Peter L McLennan
- Graduate Medicine, School of Medicine, University of Wollongong, Wollongong, Australia.,Centre for Medical and Exercise Physiology, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia
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Tognola C, Alessandro M, Milani M, Cartella I, Tavecchia G, Grasso E, Sun J, Giannattasio C. Nutraceuticals in Chronic Coronary Syndromes: Preclinical Data and Translational Experiences. High Blood Press Cardiovasc Prev 2021; 28:13-25. [PMID: 33125662 PMCID: PMC7864844 DOI: 10.1007/s40292-020-00416-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/10/2020] [Indexed: 12/13/2022] Open
Abstract
Non-pharmacological treatments have always been considered important in the management of Chronic Coronary Syndromes. Nutraceuticals ("Nutrition" + "Pharmaceutical") could fall both under the definition of non-pharmacological treatment and pharmacological one or, probably more correctly, in the middle of these two kinds of therapies. However, the word "nutraceuticals" never appears in the latest guidelines on this issue. This is probably determined by the fact that evidences on this topic are scarce and most of the published articles are based on preclinical data while translational experiences are available only for some molecules. In this review we will focus on nutraceutical strategies that act on the ischemic myocardium itself and not only on the cardiovascular risk factors. As demonstrated by the important number of papers published in recent years, this is an evolving topic and evaluated substances principally act on two mechanisms (cardiac energetics and ischemia-reperfusion damage) that will be also reviewed.
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Affiliation(s)
- Chiara Tognola
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
| | - Maloberti Alessandro
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy.
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy.
| | - Martina Milani
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
| | - Iside Cartella
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
| | - Giovanni Tavecchia
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
| | - Enzo Grasso
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
| | - Jinwey Sun
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
| | - Cristina Giannattasio
- Cardiologia IV, Dipartimento A. De Gasperis, Ospedale Niguarda Ca' Granda, Piazza Ospedale Maggiore 3, 20159, Milan, Italy
- School of Medicine and Surgery, Milano-Bicocca University, Milan, Italy
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Circulating Omega-3 Fatty Acids and Incident Adverse Events in Patients With Acute Myocardial Infarction. J Am Coll Cardiol 2020; 76:2089-2097. [DOI: 10.1016/j.jacc.2020.08.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 11/17/2022]
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Gencoglu H, Orhan C, Tuzcu M, Sahin N, Juturu V, Sahin K. Effects of walnut oil on metabolic profile and transcription factors in rats fed high-carbohydrate-/-fat diets. J Food Biochem 2020; 44:e13235. [PMID: 32424831 DOI: 10.1111/jfbc.13235] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 03/02/2020] [Accepted: 03/25/2020] [Indexed: 12/21/2022]
Abstract
The aim of this study was to examine the effects of walnut oil (WO) on metabolic profile and transcription factors in rats fed high carbohydrate (HCD) and high-fat diet (HFD). Forty-two male rats were divided in to six groups: (a) Control, (b) WO (20 mg/kg BW), (c) HCD (20% of sucrose), (d) HCD + WO (e) HFD (42% of calories as fat), and (f) HFD + WO. HFD and HCD intake increased final body weights by 19% and 23% and visceral fat weights by 3- and 5-fold, respectively (p < .05 for all). In addition, serum glucose, total cholesterol, triglyceride, and free fatty acids (FFA) insulin, leptin, and MDA levels increased in rats fed with HFD and HCD. WO supplementation improved these metabolic parameters (p < .05 for all). HFD + WO and HCD + WO treated groups had a significant reduction in serum and liver malondialdehyde (MDA) levels by 12% or 15% (p < .05 for both). In addition, WO supplementation lowered the levels of hepatic nuclear factor kappa B (NF-κB) and NADPH oxidase subunit p22phox , whereas increased the endothelial-NO synthase (e-NOS), nuclear factor erythroid 2-related factor-2, and sirtuin-1 levels. In conclusion, WO supplementation could alleviate the adverse impacts of both HCD and HFD in the rats. PRACTICAL APPLICATIONS: This study suggests that WO intake can modulate carbohydrate metabolism and increase antioxidant capacity. These properties might be partially mediated through the regulation of the transcription factors and some proteins involved in energy metabolism, as well as a balance of oxidative stress, and insulin sensitivity.
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Affiliation(s)
- Hasan Gencoglu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | - Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | - Nurhan Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Vijaya Juturu
- Research and Development, OmniActives Health Technologies Inc., Morristown, NJ, USA
| | - Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
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Aged (Black) versus Raw Garlic against Ischemia/Reperfusion-Induced Cardiac Complications. Int J Mol Sci 2018; 19:ijms19041017. [PMID: 29597322 PMCID: PMC5979444 DOI: 10.3390/ijms19041017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/22/2018] [Accepted: 03/22/2018] [Indexed: 12/24/2022] Open
Abstract
Recent evidence from studies suggests that aged black garlic also has an effect on health. The major aim of the present study is to compare the effect of raw and aged black garlic on postischemic cardiac recovery. Male Sprague Dawley rats were randomly divided into three groups. Animals of the first group were fed with raw garlic, animals of the second group received aged black garlic, while the third group served as vehicle-treated controls. Upon conclusion of the treatment, isolated hearts were undertaken to ischemia/reperfusion. Heart function and infarct size were measured and the level of HO-1 and iNOS were studied. Superior postischemic cardiac function and reduced infarct size in both garlic treated groups compared to the drug-free control group, indicated cardioprotective effects. However, no significant differences between the garlic treated groups were observed. Western blot analysis revealed that raw garlic enhanced the level of HO-1 before ischemia, while in ischemic samples, we found elevated HO-1 expression in both garlic treated groups. The level of iNOS was the same before ischemia in all groups, however, a markedly reduced iNOS level in ischemic/reperfused hearts originating from control and raw garlic treated animals was observed. Samples from aged black garlic treated animals demonstrated that the level of iNOS was not significantly reduced after ischemia/reperfusion. Taken together these results indicate that not only raw but also aged black garlic possess a cardioprotective effect.
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