1
|
Takenoshita Y, Tokito A, Jougasaki M. Inhibitory Effects of Eicosapentaenoic Acid on Vascular Endothelial Growth Factor-Induced Monocyte Chemoattractant Protein-1, Interleukin-6, and Interleukin-8 in Human Vascular Endothelial Cells. Int J Mol Sci 2024; 25:2749. [PMID: 38473995 DOI: 10.3390/ijms25052749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Vascular endothelial growth factor (VEGF) induces monocyte chemoattractant protein-1 (MCP-1) and plays an important role in vascular inflammation and atherosclerosis. We investigated the mechanisms of VEGF-induced MCP-1 expression and the effects of eicosapentaenoic acid (EPA) in human umbilical vein endothelial cells (HUVECs). Real-time reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA) demonstrated that VEGF enhanced MCP-1 gene expression and protein secretion in HUVECs. Western immunoblot analysis revealed that VEGF induced the phosphorylation of p38 mitogen-activated protein kinase (MAPK) and inhibitor of nuclear factor (NF)-κB (IκB). Treatment with pharmacological inhibitors of p38 MAPK (SB203580) or NF-κB (BAY11-7085) significantly suppressed VEGF-induced MCP-1 in HUVECs. EPA inhibited VEGF-induced MCP-1 mRNA, protein secretion, phosphorylation of p38 MAPK, and the translocation of phospho-p65 to the nucleus. Additionally, VEGF also stimulated gene expressions of interleukin (IL)-6 and IL-8, which were suppressed by SB203580, BAY11-7085, and EPA. The present study has demonstrated that VEGF-induced activation of MCP-1, IL-6, and IL-8 involves the p38 MAPK and NF-κB signaling pathways and that EPA inhibits VEGF-induced MCP-1, IL-6, and IL-8 via suppressing these signaling pathways. This study supports EPA as a beneficial anti-inflammatory and anti-atherogenic drug to reduce the VEGF-induced activation of proinflammatory cytokine and chemokines.
Collapse
Affiliation(s)
- Yoko Takenoshita
- Institute for Clinical Research, NHO Kagoshima Medical Center, Kagoshima 892-0853, Japan
| | - Akinori Tokito
- Institute for Clinical Research, NHO Kagoshima Medical Center, Kagoshima 892-0853, Japan
| | - Michihisa Jougasaki
- Institute for Clinical Research, NHO Kagoshima Medical Center, Kagoshima 892-0853, Japan
| |
Collapse
|
2
|
Tawara K, Akioka H, Sato H, Sato T, Takahashi M, Ogawa N, Aoki T, Harada T, Mitarai K, Yamauchi S, Hirota K, Miyoshi M, Yonezu K, Abe I, Kondo H, Saito S, Fukui A, Fukuda T, Shinohara T, Akiyoshi K, Teshima Y, Yufu K, Nakagawa M, Takahashi N. Role of polyunsaturated fatty acids in Japanese patients with coronary spastic angina. J Cardiol 2023; 82:455-459. [PMID: 37459964 DOI: 10.1016/j.jjcc.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/10/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND n-3 polyunsaturated fatty acids (PUFAs) reduce the risk of ischemic heart disease. However, there are few reports of a relationship between n-3 PUFAs and coronary spastic angina (CSA). This study aimed to assess the age-dependent role of serum levels of fatty acid in patients with CSA. METHODS AND RESULTS We enrolled 406 patients who underwent ergonovine tolerance test (ETT) during coronary angiography for evaluation of CSA. All ETT-positive subjects were diagnosed as having CSA. We categorized the patients by age and results of ETT as follows: (1) young (age ≤ 65 years) CSA-positive (n = 32), (2) young CSA-negative (n = 134), (3) elderly (age > 66 years) CSA-positive (n = 36), and (4) elderly CSA-negative (n = 204) groups. We evaluated the serum levels of eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), arachidonic acid, and dihomo-gamma-linolenic acid. In the young groups, the serum levels of EPA (64.3 ± 37.7 μg/mL vs. 49.4 ± 28.8 μg/mL, p = 0.015) and DHA (135.7 ± 47.6 μg/mL vs. 117.4 ± 37.6 μg/mL, p = 0.020) were significantly higher in the CSA-positive group than in the CSA-negative group, respectively. However, this was not the case with elderly groups. In the multivariate analysis in young groups, the serum levels of EPA (p = 0.028) and DHA (p = 0.049) were independently associated with the presence of CSA, respectively. CONCLUSION Our results suggested that the higher serum levels of EPA and/or DHA might be involved in the pathophysiology of CSA in the young population but not in the elderly population.
Collapse
Affiliation(s)
- Katsunori Tawara
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Hidefumi Akioka
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan.
| | - Hiroki Sato
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Takaaki Sato
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Masaki Takahashi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Naoko Ogawa
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Takanori Aoki
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Taisuke Harada
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Kazuki Mitarai
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Shuichiro Yamauchi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Kei Hirota
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Miho Miyoshi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Keisuke Yonezu
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Ichitaro Abe
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Hidekazu Kondo
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Shotaro Saito
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Akira Fukui
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Tomoko Fukuda
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Tetsuji Shinohara
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Kumiko Akiyoshi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Yasushi Teshima
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Kunio Yufu
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Mikiko Nakagawa
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| | - Naohiko Takahashi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Yufu-City, Oita, Japan
| |
Collapse
|
3
|
Bouhadoun A, Manikpurage HD, Deschildre C, Zalghout S, Dubourdeau M, Urbach V, Ho-Tin-Noe B, Deschamps L, Michel JB, Longrois D, Norel X. DHA, RvD1, RvD5, and MaR1 reduce human coronary arteries contractions induced by PGE 2. Prostaglandins Other Lipid Mediat 2023; 165:106700. [PMID: 36528331 DOI: 10.1016/j.prostaglandins.2022.106700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/29/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
In patients with coronary artery disease (CAD), plasma levels of pro-inflammatory lipid mediators such as PGE2 and TxA2 are increased. They could increase vascular contraction while EPA and DHA could reduce it. Studies have been mostly conducted on animal vessels. Therefore, the aim of the study was to investigate if EPA, DHA, and DHA-derived metabolites: RvD1, RvD5 and MaR1 can modulate contraction of human coronary arteries (HCA) induced by PGE2 or TxA2 stable analogue (U46619). DHA and EPA relaxed HCA pre-contracted with PGE2. 18 h-incubation with DHA but not EPA reduced the PGE2-induced contractions. Pre-incubation with RvD1, RvD5 and MaR1 reduced the PGE2-induced contractions. Indomethacin did not significantly modify the PGE2 responses. L-NOARG (inhibitor of nitric oxide synthase), reduced only the PGE2-induced contractions in RvD1-treated rings. Finally, FPR2/ALX, GPR32 and LGR6 receptors are detected in HCA by immunofluorescence. Our results indicate that DHA and its metabolites could be beneficial for HCA blood flow and could be a therapeutic perspective for patients with CAD.
Collapse
Affiliation(s)
- Amel Bouhadoun
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Hasanga D Manikpurage
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France; Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada
| | - Catherine Deschildre
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Sara Zalghout
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | | | | | - Benoît Ho-Tin-Noe
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Lydia Deschamps
- Hôpital Bichat-Claude Bernard, Assistance Publique-Hôpitaux de Paris, Université Paris Cité Paris, France
| | - Jean-Baptiste Michel
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France
| | - Dan Longrois
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France; Hôpital Bichat-Claude Bernard, Assistance Publique-Hôpitaux de Paris, Université Paris Cité Paris, France
| | - Xavier Norel
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, LVTS, F-75018 Paris, France.
| |
Collapse
|
4
|
Šušnjara P, Mihaljević Z, Stupin A, Kolobarić N, Matić A, Jukić I, Kralik Z, Kralik G, Miloloža A, Pavošević T, Šerić V, Lončarić Z, Kerovec D, Galović O, Drenjančević I. Consumption of Nutritionally Enriched Hen Eggs Enhances Endothelium-Dependent Vasodilation via Cyclooxygenase Metabolites in Healthy Young People-A Randomized Study. Nutrients 2023; 15:1599. [PMID: 37049437 PMCID: PMC10097130 DOI: 10.3390/nu15071599] [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: 02/22/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
OBJECTIVE The present study aimed to evaluate the effects of enriched hen egg consumption on endothelium-dependent vasodilation (EDV) and the role of cyclooxygenases in EDV in the microcirculation of young healthy individuals. This study hypothesizes that Nutri4 eggs will improve endothelial function, which will be manifested by changes in microcirculatory flow measured by a laser Doppler flowmeter (LDF) during reactive hyperemia in response to vascular occlusion, in which n-3 PUFA plays an important role as well as its degradation pathway by cyclooxygenases. MATERIALS AND METHODS Participants consumed three eggs per day for three weeks: The control group (CTRL, n = 14) consumed regular hen eggs (approximately 0.330 mg of lutein, 1.785 mg of vitamin E, 0.054 mg of selenium and 438 mg of n-3 PUFAs daily) and Nutri4 group (n = 20) consumed enriched eggs (approximately 1.85 mg of lutein, 0.06 mg of selenium, 3.29 mg of vitamin E, and 1026 mg of n-3 PUFAs daily). Skin microvascular blood flow in response to EDV (post-occlusive reactive hyperemia (PORH) and iontophoresis of acetylcholine (AChID)) and sodium nitroprusside (SNPID; endothelium-independent) was assessed by laser Doppler flowmetry before and after dietary protocol and in a separate group of participants who were administered perorally 100 mg of indomethacin before microvascular response assessment. Arterial blood pressure, heart rate, serum lipid, and liver enzymes, anthropometric measurements, protein expression of cyclooxygenase 1 (COX-1), cyclooxygenase 2 (COX-2), neuronal nitric oxide synthases (nNOS), inducible nitric oxide synthases (iNOS), and endothelial nitric oxide synthases (eNOS) were measured before and after dietary protocol. RESULTS PORH and AChID were significantly enhanced, and SNPID remained unchanged in the Nutri4 group, while none was changed in the CTRL following a respective diet. PORH decreased after administration of indomethacin in Nutri4 after dietary protocol. Protein expression of COX-2 was significantly higher in the Nutri4 group compared to the CTRL after the dietary protocol. CONCLUSION Consumption of enriched eggs improves microvascular EDV in healthy young subjects. Results suggest an element of n-3 PUFAs metabolites via the cyclooxygenases pathway in enhanced reactive hyperemia.
Collapse
Affiliation(s)
- Petar Šušnjara
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| | - Zrinka Mihaljević
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| | - Ana Stupin
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| | - Nikolina Kolobarić
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| | - Anita Matić
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| | - Ivana Jukić
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| | - Zlata Kralik
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
- Department of Animal Production and Biotechnology, Faculty of Agrobiotechnical Sciences, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 1, HR-31000 Osijek, Croatia
| | - Gordana Kralik
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
- Department of Animal Production and Biotechnology, Faculty of Agrobiotechnical Sciences, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 1, HR-31000 Osijek, Croatia
| | - Anđelina Miloloža
- Department of Clinical Laboratory Diagnostics, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia; (A.M.); (T.P.); (V.Š.)
| | - Tihana Pavošević
- Department of Clinical Laboratory Diagnostics, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia; (A.M.); (T.P.); (V.Š.)
| | - Vatroslav Šerić
- Department of Clinical Laboratory Diagnostics, Osijek University Hospital, J. Huttlera 4, HR-31000 Osijek, Croatia; (A.M.); (T.P.); (V.Š.)
| | - Zdenko Lončarić
- Department for Agroecology and Environment Protection, Faculty of Agrobiotechnical Sciences, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 1, HR-31000 Osijek, Croatia; (Z.L.); (D.K.)
| | - Darko Kerovec
- Department for Agroecology and Environment Protection, Faculty of Agrobiotechnical Sciences, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 1, HR-31000 Osijek, Croatia; (Z.L.); (D.K.)
| | - Olivera Galović
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Ul. Cara Hadrijana 8a, HR-31000 Osijek, Croatia
| | - Ines Drenjančević
- Institute and Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, J. Huttlera 4, HR-31000 Osijek, Croatia; (P.Š.); (Z.M.); (A.S.); (N.K.); (A.M.); (I.J.)
- Scientific Center of Excellence for Personalized Health Care, Josip Juraj Strossmayer University of Osijek, Trg Svetog Trojstva 3, HR-31000 Osijek, Croatia; (Z.K.); (G.K.); (O.G.)
| |
Collapse
|
5
|
Wheeler E, Walsh-Wilcox M, Shah M, Achrekar A, Anderson JR, Walker MK. Interactive Effects of Omega-3 Polyunsaturated Fatty Acids and Secondhand Smoke in Mice and Human Subjects. Cardiovasc Toxicol 2021; 21:115-126. [PMID: 32844369 PMCID: PMC7854812 DOI: 10.1007/s12012-020-09601-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/14/2020] [Indexed: 10/23/2022]
Abstract
Active smoking and secondhand smoke (SHS) exposure increase the risk of cardiovascular morbidity and mortality. Active smoking is associated with reduced levels of omega-3 polyunsaturated fatty acids (n-3 PUFA) and studies show that n-3 PUFA supplementation can improve smoking-induced vascular dysfunction. However, the relationship between n-3 PUFA and SHS exposure has not been studied. Fat-1 transgenic mice, which convert n-6 to n-3 PUFA, were fed diets with n-3 PUFA or without (n-6 PUFA diet), exposed to air or SHS for 4 weeks, and vasoreactivity, antioxidant indices, and omega-3 index (percent eicosapentaenoic + docosahexaenoic acids in RBC) measured. Compared to air-exposed mice, SHS-enhanced aortic constriction in mice fed the n-6 PUFA diet (omega-3 index, 5.9 ± 0.2%; mean ± SE), but not in mice fed the n-3 PUFA diet (omega-3 index, 7.8 ± 0.6%). SHS also significantly induced mRNA expression of cytochrome P4501A1, NADPH:quinone oxidoreductase, heme oxygenase-1, and angiotensinogen in adipose tissue, and increased antioxidant capacity only in mice on the n-6 PUFA diet. Notably, SHS reduced the omega-3 index by 1.0 percentage point (p = 0.003), compared to air-exposed mice irrespective of diet. Additionally, we recruited human nonsmokers (NS) with and without SHS exposure (n = 40) 19-40 years old and measured the omega-3 index and antioxidant capacity. In human subjects SHS exposure was associated with a significantly lower omega-3 index (NS, 4.4 ± 1.1%; NS + SHS, 3.2 ± 1.0%; mean ± SD, p = 0.002) and higher antioxidant capacity (p < 0.001) than unexposed NS. Thus, SHS exposure is associated with lower levels of n-3 PUFA in mice and humans; however, an omega-3 index of ~ 8% in mice has vasoprotective and antioxidant properties.
Collapse
Affiliation(s)
- Emily Wheeler
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, 2703 Frontier Ave NE MSC09 5630, Albuquerque, NM, 87131, USA
- National Jewish Health, Denver, CO, 80206, USA
| | - Mary Walsh-Wilcox
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, 2703 Frontier Ave NE MSC09 5630, Albuquerque, NM, 87131, USA
| | - Meera Shah
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, 2703 Frontier Ave NE MSC09 5630, Albuquerque, NM, 87131, USA
| | - Abinash Achrekar
- Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Joe R Anderson
- Department of Pharmacy Practice and Administrative Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Mary K Walker
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, 2703 Frontier Ave NE MSC09 5630, Albuquerque, NM, 87131, USA.
| |
Collapse
|
6
|
Ito N, Hishikari K, Abe F, Kanno Y, Iiya M, Murai T, Hikita H, Takahashi A, Yonetsu T, Sasano T. Eicosapentaenoic acid levels predict prognosis of peripheral artery disease caused by aortoiliac artery lesions. Nutr Metab Cardiovasc Dis 2021; 31:263-268. [PMID: 33500105 DOI: 10.1016/j.numecd.2020.08.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/10/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIM Eicosapentaenoic acid (EPA) has been reported to improve clinical outcome of high-risk atherosclerotic patients. We investigated whether endogenous EPA values predict prognosis of peripheral artery disease (PAD) patients. METHODS AND RESULTS This retrospective study included 166 consecutive patients who had received endovascular therapy (EVT) for PAD caused by aortoiliac artery lesions. Patients were divided into 2 groups using median preoperative EPA value (57 μg/ml): LOW EPA (n = 83) and HIGH EPA (n = 83). We compared differences between the 2 groups in prevalence of major adverse limb events (MALE) which included target lesion revascularization (TLR), non-TLR, and major amputation, and major adverse events (MAE) which included MALE and all cause death. At a median follow-up period of 20 months, MALE had occurred in 24 LOW EPA patients (28.9%) and in 12 HIGH EPA patients (14.5%) (p = 0.04), and MAE had occurred in 41 LOW EPA patients (49.4%) and in 21 HIGH EPA patients (25.3%) (p < 0.01). Kaplan-Meier analysis showed prevalence of MALE and MAE was significantly higher in LOW EPA than in HIGH EPA (long-rank test χ2 = 8.5, p < 0.01, log-rank test χ2 = 13.2, p < 0.01, respectively). Multivariate Cox regression revealed preoperative EPA value < 57 μg/ml was an independent predictor for MALE (hazard ratio [HR]: 2.70; 95% CI: 1.35 to 5.4; p < 0.01) and MAE (HR: 2.86; 95% CI: 1.67 to 4.91; p < 0.01). CONCLUSIONS Endogenous EPA value seems to be associated with risk of MALE and MAE after EVT in patients with PAD caused by aortoiliac artery lesions.
Collapse
Affiliation(s)
- Naruhiko Ito
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan.
| | | | - Fumiyuki Abe
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Yoshinori Kanno
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Munehiro Iiya
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Tadashi Murai
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Hiroyuki Hikita
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | | | - Taishi Yonetsu
- Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tetsuo Sasano
- Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
7
|
Effect of omega-3 polyunsaturated fatty acids in modulation of vascular tone under physiological and pathological conditions. Eur J Pharm Sci 2020; 153:105499. [PMID: 32736093 DOI: 10.1016/j.ejps.2020.105499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 11/21/2022]
Abstract
Omega-3 polyunsaturated fatty acids (n-3 PUFAs), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are mainly found in marine fish oils and commercially available fish oil supplements. Several studies have documented that n-3 PUFAs can reduce the risk of cardiovascular diseases through anti-inflammatory, anti-thrombotic, and anti-atherosclerotic properties. Notably, regulation of vascular tone is one of the most important bases of cardiovascular health and especially for maintaining blood pressure within optimal physiological ranges. Recent clinical and animal studies indicate an association between n-3 PUFAs and vascular functions. In this regard, many clinical trials and basic experimental studies have been conducted so far to investigate the influence of n-3 PUFAs on vascular tone. In this review, we have summarized the results obtained from both clinical and basic studies that evaluated the effect of n-3 PUFAs under physiological and pathological conditions. Moreover, we also focus on verifying the underlying basic molecular mechanism of n-3 PUFAs on the vascular system.
Collapse
|
8
|
Effect of the double bond conjugation on the vascular physiology and nitric oxide production of isomers of eicosapentaenoic and docosahexaenoic acids prepared from shark oil. PLoS One 2020; 15:e0229435. [PMID: 32107491 PMCID: PMC7046235 DOI: 10.1371/journal.pone.0229435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 02/06/2020] [Indexed: 11/21/2022] Open
Abstract
A collection of evidence suggests that conjugation of double bonds of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids, omega-3 polyunsaturated fatty acids (n-3 PUFAs), increases their anticarcinogenic activity; however, the effect of such conjugation on vascular tone activity remains unknown. We propose that the mixture of conjugated PUFAs exerts higher vasorelaxation activity than the corresponding mixture of nonconjugated PUFAs. The vascular response to different concentrations of conjugated and nonconjugated isomers of EPA and DHA, among other fatty acids (FAs) naturally present in shark oil, and the role of nitric oxide (NO) as a vasorelaxant agent were investigated. Both conjugated EPA (CEPA) and conjugated DHA (CDHA) were prepared by alkaline isomerization of all PUFAs contained in shark oil. Different concentrations of conjugated and nonconjugated PUFAs were placed in contact with precontracted aortic rings of Wistar rats to assess their effect on vascular tone. All tested samples exerted a vasorelaxant effect. Compared to nonconjugated PUFAs, conjugated isomers exhibited an increase in the dilatation of the aortic rings (P<0.001) in a dose-dependent manner (P<0.001). In addition, nonconjugated PUFAs produced nitric oxide (NO) in a dose-dependent manner, while conjugated PUFAs did not, suggesting that their dilatation mechanism is not totally dependent on NO.
Collapse
|
9
|
Shojima Y, Ueno Y, Tanaka R, Yamashiro K, Miyamoto N, Hira K, Kurita N, Nakajima S, Urabe T, Hattori N. Eicosapentaenoic-to-Arachidonic Acid Ratio Predicts Mortality and Recurrent Vascular Events in Ischemic Stroke Patients. J Atheroscler Thromb 2020; 27:969-977. [PMID: 31969533 PMCID: PMC7508728 DOI: 10.5551/jat.52373] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Aims: The ratio of eicosapentaenoic acid (EPA) to arachidonic acid (AA) is related to major adverse events and death in cardiovascular diseases. The association between long-term prognosis of ischemic stroke and EPA/AA ratio has not been clarified. Methods: Acute ischemic stroke patients who had undergone blood examinations for polyunsaturated fatty acids were enrolled. Major cardiovascular events, including recurrence of ischemic stroke, occurrence of cardiovascular and peripheral artery diseases and hemorrhagic stroke, and death, were analyzed, retrospectively. Cox proportional hazards regression analysis was used to explore factors, including clinical characteristics, laboratory data including EPA/AA ratio, and treatments associated with major cardiovascular events and death. Results: A total of 269 patients (mean age, 70 ± 13 years; 179 men) were enrolled. During follow-up (mean, 2.3 ± 1.0 years), 64 patients exhibited major cardiovascular events and death (annualized rate, 10.5% per person-year). Multivariate Cox analysis revealed that EPA/AA ratio (hazard ratio, 0.26; 95% confidence interval, 0.07–0.99; p = 0.048) and statin therapy (hazard ratio, 0.43; 95% confidence interval, 0.25–0.73; p = 0.002) correlated inversely with major cardiovascular events and death. In the Kaplan–Meier analysis, cumulative event-free rates were significantly lower among patients with EPA/AA ratio < 0.33 and patients without statin therapy (p = 0.006). Conclusions: Low EPA/AA ratio at baseline and treatment without statins could predict mortality, recurrent ischemic stroke, cardiovascular and peripheral artery diseases, and hemorrhagic stroke among patients with acute ischemic stroke. The combination of baseline EPA/AA ratio and statin therapy could be critical in predicting the long-term prognosis of ischemic stroke patients.
Collapse
Affiliation(s)
- Yuri Shojima
- Department of Neurology, Juntendo University School of Medicine
| | - Yuji Ueno
- Department of Neurology, Juntendo University School of Medicine
| | - Ryota Tanaka
- Department of Neurology, Juntendo University School of Medicine.,Stroke Center and Division of Neurology, Department of Medicine, Jichi Medical University
| | - Kazuo Yamashiro
- Department of Neurology, Juntendo University School of Medicine
| | | | - Kenichiro Hira
- Department of Neurology, Juntendo University School of Medicine
| | - Naohide Kurita
- Department of Neurology, Juntendo University School of Medicine
| | - Sho Nakajima
- Department of Neurology, Juntendo University School of Medicine
| | - Takao Urabe
- Department of Neurology, Juntendo University Urayasu Hospital
| | | |
Collapse
|
10
|
Characterisation of the vasodilation effects of DHA and EPA, n-3 PUFAs (fish oils), in rat aorta and mesenteric resistance arteries. PLoS One 2018; 13:e0192484. [PMID: 29394279 PMCID: PMC5796719 DOI: 10.1371/journal.pone.0192484] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 01/24/2018] [Indexed: 02/07/2023] Open
Abstract
Background and purpose Increasing evidence suggests that the omega-3 polyunsaturated acids (n-3 PUFA), docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), are beneficial to cardiovascular health, promoting relaxation of vascular smooth muscle cells and vasodilation. Numerous studies have attempted to study these responses, but to date there has not been a systematic characterisation of both DHA and EPA mediated vasodilation in conduit and resistance arteries. Therefore, we aimed to fully characterise the n-3 PUFA-induced vasodilation pathways in rat aorta and mesenteric artery. Methods Wire myography was used to measure the vasomotor responses of freshly dissected rat mesenteric artery and aorta. Arteries were pre-constricted with U46619 and cumulative concentrations of either DHA or EPA (10 nM-30 μM) were added. The mechanisms by which n-3 PUFA relaxed arteries were investigated using inhibitors of vasodilator pathways, which include: nitric oxide synthase (NOS; L-NAME), cycloxygenase (COX; indomethacin), cytochrome P450 epoxygenase (CYP450; clotrimazole); and calcium-activated potassium channels (KCa), SKCa (apamin), IKCa (TRAM-34) and BKCa (paxilline). Results Both DHA- and EPA-induced relaxations were partially inhibited following endothelium removal in rat mesenteric arteries. Similarly, in aorta EPA-induced relaxation was partially suppressed due to endothelium removal. CYP450 also contributed to EPA-induced relaxation in mesenteric artery. Inhibition of IKCa partially attenuated DHA-induced relaxation in aorta and mesenteric artery along with EPA-induced relaxation in mesenteric artery. Furthermore, this inhibition of DHA- and EPA-induced relaxation was increased following the additional blockade of BKCa in these arteries. Conclusions This study provides evidence of heterogeneity in the vasodilation mechanisms of DHA and EPA in different vascular beds. Our data also demonstrates that endothelium removal has little effect on relaxations produced by either PUFA. We demonstrate IKCa and BKCa are involved in DHA-induced relaxation in rat aorta and mesenteric artery; and EPA-induced relaxation in rat mesenteric artery only. CYP450 derived metabolites of EPA may also be involved in BKCa dependent relaxation. To our knowledge this is the first study indicating the involvement of IKCa in n-3 PUFA mediated relaxation.
Collapse
|
11
|
Wen M, Ding L, Zhang L, Cong P, Zhang T, Xu J, Chang Y, Wang Y, Xue C. A comparative study of eicosapentaenoic acid enriched phosphatidylcholine and ethyl ester in improving cognitive deficiency in Alzheimer's disease model rats. Food Funct 2018. [DOI: 10.1039/c7fo01815k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular mechanisms of EPA-PC and EPA-EE in improving Aβ-induced cognitive deficiency in rats.
Collapse
Affiliation(s)
- Min Wen
- Institute of BioPharmaceutical Research
- Liaocheng University
- Liaocheng 252059
- P.R. China
- College of Food Science and Engineering
| | - Lin Ding
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
| | - Lingyu Zhang
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
| | - Peixu Cong
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
| | - Tiantian Zhang
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
| | - Jie Xu
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
| | - Yaoguang Chang
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
| | - Yuming Wang
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
- Qingdao National Laboratory for Marine Science and Technology
| | - Changhu Xue
- College of Food Science and Engineering
- Ocean University of China
- Qingdao 266003
- P.R. China
- Qingdao National Laboratory for Marine Science and Technology
| |
Collapse
|
12
|
Ueno Y, Tanaka R, Yamashiro K, Miyamoto N, Hira K, Kurita N, Sakurai M, Urabe T, Shimada K, Miyazaki T, Daida H, Hattori N. Age Stratification and Impact of Eicosapentaenoic Acid and Docosahexaenoic Acid to Arachidonic Acid Ratios in Ischemic Stroke Patients. J Atheroscler Thromb 2017; 25:593-605. [PMID: 29199200 PMCID: PMC6055034 DOI: 10.5551/jat.40691] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Aim: We focused on the ratios of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) to arachidonic acid (AA) and explored the significance of these ratios relative to clinical characteristics by age in ischemic stroke patients. Methods: We enrolled patients with acute ischemic stroke who underwent radiological investigations and laboratory examinations, including measurement of serum EPA, DHA, and AA levels, and controls. Patients were classified according to age (< 65, 65–74, and ≥ 75 years) and the tertile of EPA/AA and DHA/AA ratios, and clinical aspects were compared with these factors. Results: We analyzed 373 patients (age 70.2 ± 13.4 years; 245 males) and 105 controls. Among stroke patients, patients aged < 65 years had the lowest EPA/AA (0.35 ± 0.23, p = 0.006) and DHA/AA (0.73 ± 0.27, p < 0.001) ratios. Compared with controls, patients aged < 65 years showed lower EPA/AA (vs. 0.49 ± 0.25, p < 0.001) and DHA/AA (vs. 0.82 ± 0.26, p = 0.009) ratios. From logistic regression analysis, the EPA/AA (odds ratio 0.18, 95% confidence interval 0.04–0.81, p = 0.026) and DHA/AA (odds ratio 0.09, 95% confidence interval 0.02–0.33, p < 0.001) ratios were inversely related to patients aged < 65 years. According to age-stratified analyses, we found an association of aortic arch calcification with a lower EPA/AA ratio for patients aged ≥ 75 years and an association of multiple infarctions and cerebral white matter lesions with a lower EPA/AA ratio for patients aged 65–74 years (p < 0.05). Conclusions: The ratios of EPA/AA and DHA/AA could be specific markers for younger stroke patients. The EPA/AA ratio may be related to aortic arch calcification for elderly stroke patients and to multiple infarctions and cerebral white matter disease for middle-aged stroke patients.
Collapse
Affiliation(s)
- Yuji Ueno
- Department of Neurology, Juntendo University Faculty of Medicine
| | - Ryota Tanaka
- Department of Neurology, Juntendo University Faculty of Medicine
| | - Kazuo Yamashiro
- Department of Neurology, Juntendo University Faculty of Medicine
| | | | - Kenichiro Hira
- Department of Neurology, Juntendo University Faculty of Medicine
| | - Naohide Kurita
- Department of Neurology, Juntendo University Faculty of Medicine
| | - Mayu Sakurai
- Department of Neurology, Juntendo University Faculty of Medicine
| | - Takao Urabe
- Department of Neurology, Juntendo University Urayasu Hospital
| | - Kazunori Shimada
- Department of Cardiovascular Medicine, Juntendo University Faculty of Medicine
| | - Tetsuro Miyazaki
- Department of Cardiovascular Medicine, Juntendo University Faculty of Medicine
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Faculty of Medicine
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University Faculty of Medicine
| |
Collapse
|
13
|
EPA:DHA 6:1 prevents angiotensin II-induced hypertension and endothelial dysfunction in rats: role of NADPH oxidase- and COX-derived oxidative stress. Hypertens Res 2017; 40:966-975. [DOI: 10.1038/hr.2017.72] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 06/16/2017] [Accepted: 06/30/2017] [Indexed: 12/19/2022]
|
14
|
Baker EJ, Miles EA, Burdge GC, Yaqoob P, Calder PC. Metabolism and functional effects of plant-derived omega-3 fatty acids in humans. Prog Lipid Res 2016; 64:30-56. [DOI: 10.1016/j.plipres.2016.07.002] [Citation(s) in RCA: 224] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 12/17/2022]
|
15
|
Clark CM, Monahan KD, Drew RC. Omega-3 polyunsaturated fatty acid supplementation attenuates blood pressure increase at onset of isometric handgrip exercise in healthy young and older humans. Physiol Rep 2016; 4:4/14/e12875. [PMID: 27440746 PMCID: PMC4962077 DOI: 10.14814/phy2.12875] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 07/01/2016] [Indexed: 12/14/2022] Open
Abstract
Aging is associated with alterations of autonomic nerve activity, and dietary intake of omega-3 polyunsaturated fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) found in fish oil (FO), can modulate autonomic nerve activity. However, the effect of omega-3 polyunsaturated fatty acid consumption on age-related cardiovascular responses at the onset of isometric handgrip exercise, a time of rapid autonomic adjustments, is unknown. Accordingly, 14 young (25 ± 1 years; mean ± SE) and 15 older (64 ± 2 years) healthy subjects ingested 4 g FO daily for 12 weeks. On pre- and postintervention visits, participants performed 15-sec bouts of isometric handgrip at 10%, 30%, 50%, and 70% maximal voluntary contraction (MVC) while beat-to-beat systolic, diastolic, and mean arterial blood pressure (SBP, DBP, MAP; Finometer) and heart rate (HR; electrocardiogram) were recorded. All baseline cardiovascular variables were similar between groups and visits, except DBP was higher in older subjects (P < 0.05). FO increased erythrocyte EPA and DHA content in both groups (P < 0.05). FO attenuated MAP and DBP increases in response to handgrip in both age groups (change from baseline during 70% MVC handgrip pre- and post-FO: young MAPΔ 14 ± 2 mmHg versus 10 ± 2 mmHg, older MAPΔ 14 ± 3 mmHg versus 11 ± 2 mmHg; young DBPΔ 12 ± 1 mmHg versus 7 ± 2 mmHg, older DBPΔ 12 ± 1 mmHg versus 7 ± 1 mmHg; P < 0.05). FO augmented the PP (SBP-DBP) increase with 70% MVC handgrip in both groups (P < 0.05), but did not alter SBP or HR increases with handgrip. These findings suggest that FO supplementation attenuates MAP and DBP increases at the onset of isometric handgrip exercise in healthy young and older humans.
Collapse
Affiliation(s)
- Christine M Clark
- Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Kevin D Monahan
- Penn State Heart and Vascular Institute, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Rachel C Drew
- Penn State Heart and Vascular Institute, Penn State College of Medicine, Milton S. Hershey Medical Center, Hershey, Pennsylvania
| |
Collapse
|
16
|
Sawada T, Tsubata H, Hashimoto N, Takabe M, Miyata T, Aoki K, Yamashita S, Oishi S, Osue T, Yokoi K, Tsukishiro Y, Onishi T, Shimane A, Taniguchi Y, Yasaka Y, Ohara T, Kawai H, Yokoyama M. Effects of 6-month eicosapentaenoic acid treatment on postprandial hyperglycemia, hyperlipidemia, insulin secretion ability, and concomitant endothelial dysfunction among newly-diagnosed impaired glucose metabolism patients with coronary artery disease. An open label, single blinded, prospective randomized controlled trial. Cardiovasc Diabetol 2016; 15:121. [PMID: 27565734 PMCID: PMC5002116 DOI: 10.1186/s12933-016-0437-y] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 08/12/2016] [Indexed: 01/18/2023] Open
Abstract
Background Recent experimental studies have revealed that n-3 fatty acids, such as eicosapentaenoic acid (EPA) regulate postprandial insulin secretion, and correct postprandial glucose and lipid abnormalities. However, the effects of 6-month EPA treatment on postprandial hyperglycemia and hyperlipidemia, insulin secretion, and concomitant endothelial dysfunction remain unknown in patients with impaired glucose metabolism (IGM) and coronary artery disease (CAD). Methods and results We randomized 107 newly diagnosed IGM patients with CAD to receive either 1800 mg/day of EPA (EPA group, n = 53) or no EPA (n = 54). Cookie meal testing (carbohydrates: 75 g, fat: 28.5 g) and endothelial function testing using fasting-state flow-mediated dilatation (FMD) were performed before and after 6 months of treatment. The primary outcome of this study was changes in postprandial glycemic and triglyceridemic control and secondary outcomes were improvement of insulin secretion and endothelial dysfunction. After 6 months, the EPA group exhibited significant improvements in EPA/arachidonic acid, fasting triglyceride (TG), and high-density lipoprotein cholesterol (HDL-C). The EPA group also exhibited significant decreases in the incremental TG peak, area under the curve (AUC) for postprandial TG, incremental glucose peak, AUC for postprandial glucose, and improvements in glycometabolism categorization. No significant changes were observed for hemoglobin A1c and fasting plasma glucose levels. The EPA group exhibited a significant increase in AUC-immune reactive insulin/AUC-plasma glucose ratio (which indicates postprandial insulin secretory ability) and significant improvements in FMD. Multiple regression analysis revealed that decreases in the TG/HDL-C ratio and incremental TG peak were independent predictors of FMD improvement in the EPA group. Conclusions EPA corrected postprandial hypertriglyceridemia, hyperglycemia and insulin secretion ability. This amelioration of several metabolic abnormalities was accompanied by recovery of concomitant endothelial dysfunction in newly diagnosed IGM patients with CAD. Clinical Trial Registration UMIN Registry number: UMIN000011265 (https://www.upload.umin.ac.jp/cgi-open-bin/ctr/ctr.cgi?function=brows&action=brows&type=summary&recptno=R000013200&language=E) Electronic supplementary material The online version of this article (doi:10.1186/s12933-016-0437-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Takahiro Sawada
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan.
| | - Hideo Tsubata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Naoko Hashimoto
- Division of Diabetes and Endocrinology, Hyogo Prefectural Himeji Cardiovascular Center, 520, Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Michinori Takabe
- Division of Diabetes and Endocrinology, Hyogo Prefectural Himeji Cardiovascular Center, 520, Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Taishi Miyata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Kosuke Aoki
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Soichiro Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Shogo Oishi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Tsuyoshi Osue
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Kiminobu Yokoi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Yasue Tsukishiro
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Tetsuari Onishi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Akira Shimane
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Yasuyo Taniguchi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Yoshinori Yasaka
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Takeshi Ohara
- Division of Diabetes and Endocrinology, Hyogo Prefectural Himeji Cardiovascular Center, 520, Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Hiroya Kawai
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| | - Mitsuhiro Yokoyama
- Division of Cardiovascular Medicine, Department of Internal Medicine, Hyogo Prefectural Himeji Cardiovascular Center, 520 Saisho-Kou, Himeji, Hyogo, 670-0981, Japan
| |
Collapse
|
17
|
Auger C, Said A, Nguyen PN, Chabert P, Idris-Khodja N, Schini-Kerth VB. Potential of Food and Natural Products to Promote Endothelial and Vascular Health. J Cardiovasc Pharmacol 2016; 68:11-8. [PMID: 26974893 DOI: 10.1097/fjc.0000000000000382] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Endothelial dysfunction is now well established as a pivotal early event in the development of major cardiovascular diseases including hypertension, atherosclerosis, and diabetes. The alteration of the endothelial function is often triggered by an imbalance between the endothelial formation of vasoprotective factors including nitric oxide (NO) and endothelium-dependent hyperpolarization, and an increased level of oxidative stress involving several prooxidant enzymes such as NADPH oxidase and, often also, the appearance of cyclooxygenase-derived vasoconstrictors. Preclinical studies have indicated that polyphenol-rich food and food-derived products such as grape-derived products, black and red berries, green and black teas and cocoa, and omega-3 fatty acids can trigger activating pathways in endothelial cells promoting an increased formation of nitric oxide and endothelium-dependent hyperpolarization. Moreover, intake of such food-derived products has been associated with the prevention and/or the improvement of an established endothelial dysfunction in several experimental models of cardiovascular diseases and in humans with cardiovascular diseases. This review will discuss both experimental and clinical evidences indicating that different types of food and natural products are able to promote endothelial and vascular health, as well as the underlying mechanisms.
Collapse
Affiliation(s)
- Cyril Auger
- UMR CNRS 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Strasbourg, France
| | | | | | | | | | | |
Collapse
|
18
|
Chiesa G, Busnelli M, Manzini S, Parolini C. Nutraceuticals and Bioactive Components from Fish for Dyslipidemia and Cardiovascular Risk Reduction. Mar Drugs 2016; 14:md14060113. [PMID: 27338419 PMCID: PMC4926072 DOI: 10.3390/md14060113] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 05/11/2016] [Accepted: 05/26/2016] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular disease remains the most common health problem in developed countries, and residual risk after implementing all current therapies is still high. Permanent changes in lifestyle may be hard to achieve and people may not always be motivated enough to make the recommended modifications. Emerging research has explored the application of natural food-based strategies in disease management. In recent years, much focus has been placed on the beneficial effects of fish consumption. Many of the positive effects of fish consumption on dyslipidemia and heart diseases have been attributed to n-3 polyunsaturated fatty acids (n-3 PUFAs, i.e., EPA and DHA); however, fish is also an excellent source of protein and, recently, fish protein hydrolysates containing bioactive peptides have shown promising activities for the prevention/management of cardiovascular disease and associated health complications. The present review will focus on n-3 PUFAs and bioactive peptides effects on cardiovascular disease risk factors. Moreover, since considerable controversy exists regarding the association between n-3 PUFAs and major cardiovascular endpoints, we have also reviewed the main clinical trials supporting or not this association.
Collapse
Affiliation(s)
- Giulia Chiesa
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, via Balzaretti 9, Milano 20133, Italy.
| | - Marco Busnelli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, via Balzaretti 9, Milano 20133, Italy.
| | - Stefano Manzini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, via Balzaretti 9, Milano 20133, Italy.
| | - Cinzia Parolini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, via Balzaretti 9, Milano 20133, Italy.
| |
Collapse
|
19
|
Effects of Eicosapentaenoic Acid on the Cytoprotection Through Nrf2-Mediated Heme Oxygenase-1 in Human Endothelial Cells. J Cardiovasc Pharmacol 2016; 66:108-17. [PMID: 25815672 DOI: 10.1097/fjc.0000000000000251] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Consumption of omega-3 polyunsaturated fatty acid, particularly eicosapentaenoic acid (EPA), is associated with a significant reduction in the risk of developing cardiovascular disease. The aim of this study was to investigate whether heme oxygenase-1 (HO-1) induction contributes to the cytoprotective effects of EPA in endothelial cells threatened with oxidative damage. In this study, we investigated the effect of EPA on the induction of HO-1 by NF-E2-related factor 2 (Nrf2) in human umbilical vein endothelial cells. In cells treated with low concentrations of EPA (10-25 μM), HO-1 expression increased in a time- and concentration-dependent manner. Additionally, EPA treatment increased Nrf2 nuclear translocation and antioxidant response element activity, leading to the upregulation of HO-1 expression. Furthermore, treatment with EPA reduced hydrogen peroxide (H(2)O(2))-induced cell death. The reduction in cell death was reversed by treatment with zinc protoporphyrin, an inhibitor of HO-1, indicating that HO-1 contributed to the protective effect of EPA. These data suggest that EPA protects against H(2)O(2)-induced oxidative stress in endothelial cells by activating Nrf2 and inducting HO-1 expression.
Collapse
|
20
|
Newens KJ, Thompson AK, Jackson KG, Williams CM. Endothelial function and insulin sensitivity during acute non-esterified fatty acid elevation: Effects of fat composition and gender. Nutr Metab Cardiovasc Dis 2015; 25:575-581. [PMID: 25921849 PMCID: PMC4456421 DOI: 10.1016/j.numecd.2015.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 03/02/2015] [Accepted: 03/05/2015] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND AIMS We have reported that adverse effects on flow-mediated dilation of an acute elevation of non-esterified fatty acids rich in saturated fat (SFA) are reversed following addition of long-chain (LC) n-3 polyunsaturated fatty acids (PUFA), and hypothesised that these effects may be mediated through alterations in insulin signalling pathways. In a subgroup, we explored the effects of raised NEFA enriched with SFA, with or without LC n-3 PUFA, on whole body insulin sensitivity (SI) and responsiveness of the endothelium to insulin infusion. METHODS AND RESULTS Thirty adults (mean age 27.8 y, BMI 23.2 kg/m(2)) consumed oral fat loads on separate occasions with continuous heparin infusion to elevate NEFA between 60 and 390 min. For the final 150 min, a hyperinsulinaemic-euglycaemic clamp was performed, whilst FMD and circulating markers of endothelial function were measured at baseline, pre-clamp (240 min) and post-clamp (390 min). NEFA elevation during the SFA-rich drinks was associated with impaired FMD (P = 0.027) whilst SFA + LC n-3 PUFA improved FMD at 240 min (P = 0.003). In males, insulin infusion attenuated the increase in FMD with SFA + LC n-3 PUFA (P = 0.049), with SI 10% greater with SFA + LC n-3 PUFA than SFA (P = 0.041). CONCLUSION This study provides evidence that NEFA composition during acute elevation influences both FMD and SI, with some indication of a difference by gender. However our findings are not consistent with the hypothesis that the effects of fatty acids on endothelial function and SI operate through a common pathway. This trial was registered at clinical trials.gov as NCT01351324 on 6th May 2011.
Collapse
Affiliation(s)
- K J Newens
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK; Institute for Cardiovascular and Metabolic Research, University of Reading, Reading RG6 6AS, UK
| | - A K Thompson
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK; Institute for Cardiovascular and Metabolic Research, University of Reading, Reading RG6 6AS, UK
| | - K G Jackson
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK; Institute for Cardiovascular and Metabolic Research, University of Reading, Reading RG6 6AS, UK.
| | - C M Williams
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK; Institute for Cardiovascular and Metabolic Research, University of Reading, Reading RG6 6AS, UK
| |
Collapse
|
21
|
Sottero B, Gargiulo S, Russo I, Barale C, Poli G, Cavalot F. Postprandial Dysmetabolism and Oxidative Stress in Type 2 Diabetes: Pathogenetic Mechanisms and Therapeutic Strategies. Med Res Rev 2015; 35:968-1031. [PMID: 25943420 DOI: 10.1002/med.21349] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Postprandial dysmetabolism in type 2 diabetes (T2D) is known to impact the progression and evolution of this complex disease process. However, the underlying pathogenetic mechanisms still require full elucidation to provide guidance for disease prevention and treatment. This review focuses on the marked redox changes and inflammatory stimuli provoked by the spike in blood glucose and lipids in T2D individuals after meals. All the causes of exacerbated postprandial oxidative stress in T2D were analyzed, also considering the consequence of enhanced inflammation on vascular damage. Based on this in-depth analysis, current strategies of prevention and pharmacologic management of T2D were critically reexamined with particular emphasis on their potential redox-related rationale.
Collapse
Affiliation(s)
- Barbara Sottero
- Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga Hospital, Orbassano, Turin, 10043, Italy
| | - Simona Gargiulo
- Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga Hospital, Orbassano, Turin, 10043, Italy
| | - Isabella Russo
- Internal Medicine and Metabolic Disease Unit, Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga Hospital, Orbassano, Turin, 10043, Italy
| | - Cristina Barale
- Internal Medicine and Metabolic Disease Unit, Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga Hospital, Orbassano, Turin, 10043, Italy
| | - Giuseppe Poli
- Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga Hospital, Orbassano, Turin, 10043, Italy
| | - Franco Cavalot
- Internal Medicine and Metabolic Disease Unit, Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga Hospital, Orbassano, Turin, 10043, Italy
| |
Collapse
|
22
|
Hishikari K, Kimura S, Yamakami Y, Kojima K, Sagawa Y, Otani H, Sugiyama T, Kuwahara T, Hikita H, Takahashi A, Isobe M. The prognostic value of the serum eicosapentaenoic acid to arachidonic acid ratio in relation to clinical outcomes after endovascular therapy in patients with peripheral artery disease caused by femoropopliteal artery lesions. Atherosclerosis 2015; 239:583-8. [PMID: 25733330 DOI: 10.1016/j.atherosclerosis.2015.02.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/30/2015] [Accepted: 02/17/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND The EPA/AA ratio has emerged as a predictor of mortality endpoints in cardiac disease; however, its prognostic value in peripheral artery disease (PAD) patients is unclear. We assessed the serum eicosapentaenoic acid (EPA) to arachidonic acid (AA) ratio in patients with PAD caused by femoropopliteal artery lesions, to determine whether it predicts clinical outcomes after endovascular therapy (EVT). METHODS AND RESULTS We obtained serum EPA/AA ratios from 132 consecutive patients with PAD caused by femoropopliteal artery lesions before EVT. Patients were divided into two groups using the median value of serum EPA/AA ratios of the entire cohort; LOW group with the levels ≤0.30 (n = 66) and HIGH group >0.30 (n = 66). The incidence of major adverse events (MAE), including major adverse limb events (MALE) and death from any cause, was determined. At a median follow-up interval of 24 months, MALE occurred in 40 patients (30.3%) and 11 patients (8.3%) died. Kaplan-Meier curve analysis demonstrated the survival probability from MAE was significantly worse in patients with EPA/AA ratio under the median (long-rank test χ(2) = 16.4; p < 0.001). Multivariate Cox regression analysis showed critical limb ischemia (hazard ratio [HR]: 3.44; 95% confidence interval [CI]: 1.84 to 6.46; p < 0.001) and the preprocedural serum EPA/AA ratios ≤0.30 (HR: 2.74; 95% CI: 1.33 to 5.65; p = 0.006) independently predicted MAE after EVT. CONCLUSIONS Lower serum EPA/AA ratios appear to be associated with a greater risk of MALE and death from any cause after EVT in patients with PAD caused by femoropopliteal artery lesions.
Collapse
Affiliation(s)
- Keiichi Hishikari
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan; Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shigeki Kimura
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan.
| | - Yosuke Yamakami
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Keisuke Kojima
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Yuichiro Sagawa
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Hirohumi Otani
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Tomoyo Sugiyama
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Taishi Kuwahara
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Hiroyuki Hikita
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | | | - Mitsuaki Isobe
- Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
23
|
Abstract
Coronary vasomotion abnormalities play important roles in the pathogenesis of ischaemic heart disease, in which endothelial dysfunction and coronary artery spasm are substantially involved. Endothelial vasodilator functions are heterogeneous depending on the vessel size, with relatively greater role of nitric oxide (NO) in conduit arteries and predominant role of endothelium-derived hyperpolarizing factor (EDHF) in resistance arteries, where endothelium-derived hydrogen peroxide serves as an important EDHF. The functions of NO synthases in the endothelium are also heterogeneous with multiple mechanisms involved, accounting for the diverse functions of the endothelium in vasomotor as well as metabolic modulations. Cardiovascular abnormalities and metabolic phenotypes become evident when all three NO synthases are deleted, suggesting the importance of both NO and EDHF. Coronary artery spasm plays important roles in the pathogenesis of a wide range of ischaemic heart disease. The central mechanism of the spasm is hypercontraction of vascular smooth muscle cells (VSMCs), but not endothelial dysfunction, where activation of Rho-kinase, a molecular switch of VSMC contraction, plays a major role through inhibition of myosin light-chain phosphatase. The Rho-kinase pathway is also involved in the pathogenesis of a wide range of cardiovascular diseases and new Rho-kinase inhibitors are under development for various indications. The registry study by the Japanese Coronary Spasm Association has demonstrated many important aspects of vasospastic angina. The ongoing international registry study of vasospastic angina in six nations should elucidate the unknown aspects of the disorder. Coronary vasomotion abnormalities appear to be an important therapeutic target in cardiovascular medicine.
Collapse
Affiliation(s)
- Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
| |
Collapse
|
24
|
Yagi S, Aihara KI, Fukuda D, Takashima A, Hara T, Hotchi J, Ise T, Yamaguchi K, Tobiume T, Iwase T, Yamada H, Soeki T, Wakatsuki T, Shimabukuro M, Akaike M, Sata M. Effects of docosahexaenoic Acid on the endothelial function in patients with coronary artery disease. J Atheroscler Thromb 2014; 22:447-54. [PMID: 25342567 DOI: 10.5551/jat.26914] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM The consumption of n-3 polyunsaturated fatty acids (PUFA), including docosahexaenoic acid DHA), reduces the incidence of cardiovascular events, and reduced serum levels of n-3 PUFA may be associated with an increased risk of cardiovascular events. However, controversy remains regarding which components of PUFA are associated with the endothelial function in patients with coronary artery disease (CAD). We therefore examined the associations between the n-3 and n-6 PUFA levels and CAD. METHODS We retrospectively reviewed 160 consecutive Japanese patients with CAD whose endothelial function was measured according to the percent change in flow-mediated dilation (FMD) and the serum levels of n-3 PUFA, including eicosapentaenoic acid (EPA) and DHA, and n-6 PUFA, including arachidonic acid (AA) and dihomo-gamma-linolenic acid (DHLA). RESULTS A single regression analysis showed no relationships between the FMD and the serum levels of PUFA, including EPA, DHA, AA and DHLA. In contrast, a multiple regression analysis showed that the DHA level was a positive (< 0.01) and age was a negative (P < 0.001) contributor to an increased FMD; however, sex, body mass index, systolic and diastolic blood pressure, current/past smoking and the levels of HbA1c, triglycerides, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, EPA, AA and DHLA did not significantly affect the outcome. CONCLUSIONS The serum level of DHA is associated with the endothelial function evaluated according to the FMD in patients with CAD, thus suggesting that a low serum level of DHA may be a predictive biomarker for endothelial dysfunction.
Collapse
Affiliation(s)
- Shusuke Yagi
- Department of Cardiovascular Medicine, University of Tokushima Graduate School of Health Biosciences, Tokushima, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Koie M, Kondo Y, Santou T, Kitamoto Y, Morita S, Yamasaki M, Fukushima M, Inagaki N, Yasuda K. Effects of non-statin antilipemic drugs on vascular endothelial function in patients with type 2 diabetes with hypercholesterolemia. Diabetol Int 2014. [DOI: 10.1007/s13340-013-0152-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
26
|
Zgheel F, Alhosin M, Rashid S, Burban M, Auger C, Schini-Kerth VB. Redox-sensitive induction of Src/PI3-kinase/Akt and MAPKs pathways activate eNOS in response to EPA:DHA 6:1. PLoS One 2014; 9:e105102. [PMID: 25133540 PMCID: PMC4136823 DOI: 10.1371/journal.pone.0105102] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 07/21/2014] [Indexed: 02/07/2023] Open
Abstract
Aims Omega-3 fatty acid products containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have vasoprotective effects, in part, by stimulating the endothelial formation of nitric oxide (NO). This study determined the role of the EPA:DHA ratio and amount, and characterized the mechanism leading to endothelial NO synthase (eNOS) activation. Methods and Results EPA:DHA 6∶1 and 9∶1 caused significantly greater endothelium-dependent relaxations in porcine coronary artery rings than EPA:DHA 3∶1, 1∶1, 1∶3, 1∶6, 1∶9, EPA and DHA alone, and EPA:DHA 6∶1 with a reduced EPA + DHA amount, which were inhibited by an eNOS inhibitor. Relaxations to EPA:DHA 6∶1 were insensitive to cyclooxygenase inhibition, and reduced by inhibitors of either oxidative stress, Src kinase, PI3-kinase, p38 MAPK, MEK, or JNK. EPA:DHA 6∶1 induced phosphorylation of Src, Akt, p38 MAPK, ERK, JNK and eNOS; these effects were inhibited by MnTMPyP. EPA:DHA 6∶1 induced the endothelial formation of ROS in coronary artery sections as assessed by dihydroethidium, and of superoxide anions and hydrogen peroxide in cultured endothelial cells as assessed by electron spin resonance with the spin probe CMH, and the Amplex Red based assay, respectively. Conclusion Omega-3 fatty acids cause endothelium-dependent NO-mediated relaxations in coronary artery rings, which are dependent on the EPA:DHA ratio and amount, and involve an intracellular activation of the redox-sensitive PI3-kinase/Akt and MAPKs pathways to activate eNOS.
Collapse
Affiliation(s)
- Faraj Zgheel
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Mahmoud Alhosin
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Sherzad Rashid
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Mélanie Burban
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Cyril Auger
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Valérie B. Schini-Kerth
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
- * E-mail:
| |
Collapse
|
27
|
Morin C, Hiram R, Rousseau E, Blier PU, Fortin S. Docosapentaenoic acid monoacylglyceride reduces inflammation and vascular remodeling in experimental pulmonary hypertension. Am J Physiol Heart Circ Physiol 2014; 307:H574-86. [DOI: 10.1152/ajpheart.00814.2013] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
n-3 Polyunsaturated fatty acids (n-3 PUFA) have been shown to reduce inflammation and proliferation of pulmonary artery smooth muscle cells under pathophysiological conditions. However, the anti-inflammatory effect of the newly synthesized docosapentaenoic acid monoacylglyceride (MAG-DPA) on key signaling pathways in pulmonary hypertension (PH) pathogenesis has yet to be assessed. The aim of the present study was to determine the effects of MAG-DPA on pulmonary inflammation and remodeling occurring in a rat model of PH, induced by a single injection of monocrotaline (MCT: 60 mg/kg). Our results demonstrate that MAG-DPA treatment for 3 wk following MCT injection resulted in a significant improvement of right ventricular hypertrophy (RVH) and a reduction in Fulton's Index (FI). Morphometric analyses revealed that the wall thickness of pulmonary arterioles was significantly lower in MCT + MAG-DPA-treated rats compared with controls. This result was further correlated with a decrease in Ki-67 immunostaining. Following MAG-DPA treatments, lipid analysis showed a consistent increase in DPA together with lower levels of arachidonic acid (AA), as measured in blood and tissue samples. Furthermore, in MCT-treated rats, oral administration of MAG-DPA decreased NF-κB and p38 MAPK activation, leading to a reduction in MMP-2, MMP-9, and VEGF expression levels in lung tissue homogenates. Altogether, these data provide new evidence regarding the mode of action of MAG-DPA in the prevention of pulmonary hypertension induced by MCT.
Collapse
Affiliation(s)
- Caroline Morin
- SCF Pharma, Ste-Luce, Quebec, Canada
- Department of Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - Roddy Hiram
- Department of Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - Eric Rousseau
- Department of Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada; and
| | - Pierre U. Blier
- Department of Biology, Université du Québec à Rimouski, Rimouski, Quebec, Canada
| | - Samuel Fortin
- SCF Pharma, Ste-Luce, Quebec, Canada
- Department of Biology, Université du Québec à Rimouski, Rimouski, Quebec, Canada
| |
Collapse
|
28
|
The effects of vitamin E and omega-3 PUFAs on endothelial function among adolescents with metabolic syndrome. BIOMED RESEARCH INTERNATIONAL 2014; 2014:906019. [PMID: 25136638 PMCID: PMC4127288 DOI: 10.1155/2014/906019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 06/20/2014] [Indexed: 01/17/2023]
Abstract
Aim. The present study aims to explore the effects of vitamin E and omega-3 on endothelial function indicators among adolescents with metabolic syndrome. Method. In a randomized, double blind, and placebo-controlled trial, 90 young individuals, aged 10 to 18 years, with metabolic syndrome were randomly assigned to receive either vitamin E tablets (400 IU/day) or omega-3 tablets (2.4 gr/day) or placebo. For assessing endothelial functional state, the serum level of vascular endothelial growth factor (VEGF) was measured by ELISA test. Results. The use of omega-3 supplementation for eight weeks led to significant increase in serum HDL level compared with the group treated with vitamin E or placebo group. In this regard, no significant correlations were found between the change in VEGF and baseline levels of other markers including anthropometric indices and serum lipids. Omega-3 could significantly reduce VEGF with the presence of other baseline variables (Beta = −12.55; P = 0.012). Conclusion. The administration of omega-3 can effectively improve endothelial function in adolescents with metabolic syndrome by reducing the level of serum VEGF, as a major index for atherosclerosis progression and endothelial destabilization. Omega-3 can be proposed as a VEGF antagonist for improving endothelial function in metabolic syndrome. The clinical implications of our findings should be assessed in future studies.
Collapse
|
29
|
Visit-to-visit blood pressure variability in the elderly: Associations with cognitive impairment and carotid artery remodeling. Atherosclerosis 2014; 233:19-26. [DOI: 10.1016/j.atherosclerosis.2013.11.071] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 11/23/2013] [Accepted: 11/26/2013] [Indexed: 11/18/2022]
|
30
|
A Prospective, Multicenter, Randomized Study of the Efficacy of Eicosapentaenoic Acid for Cerebral Vasospasm: The EVAS Study. World Neurosurg 2014; 81:309-15. [DOI: 10.1016/j.wneu.2012.09.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 04/16/2012] [Accepted: 09/24/2012] [Indexed: 11/29/2022]
|
31
|
Ninomiya T, Nagata M, Hata J, Hirakawa Y, Ozawa M, Yoshida D, Ohara T, Kishimoto H, Mukai N, Fukuhara M, Kitazono T, Kiyohara Y. Association between ratio of serum eicosapentaenoic acid to arachidonic acid and risk of cardiovascular disease: the Hisayama Study. Atherosclerosis 2013; 231:261-7. [PMID: 24267237 DOI: 10.1016/j.atherosclerosis.2013.09.023] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 09/24/2013] [Accepted: 09/24/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE We examined the association between the ratio of serum eicosapentaenoic acid to arachidonic acid (EPA/AA) or the docosahexaenoic acid (DHA)/AA and the development of cardiovascular disease in a general Japanese population. METHODS A total of 3103 community-dwelling Japanese individuals aged ≥40 years were followed up for an average of 5.1 years. Serum EPA/AA ratios were categorized into quartiles. The risk estimates were computed using a Cox proportional hazards model. RESULTS During the follow-up period, 127 subjects experienced cardiovascular events. Age- and sex-adjusted incidence rates of cardiovascular disease increased with lower serum EPA/AA ratios in individuals with high-sensitivity C-reactive protein (HS-CRP) of ≥1.0 mg/L (p for trend = 0.006), whereas no clear association was observed in those with HS-CRP of <1.0 mg/L (p for trend = 0.27). The multivariable-adjusted risk of cardiovascular disease increased significantly, by 1.52 times (95% confidence interval 1.12-2.04) per 0.20 decrement in serum EPA/AA ratio in subjects with HS-CRP of ≥1.0 mg/L. A lower serum EPA/AA ratio was significantly associated with an increased risk of coronary heart disease, but there was no evidence of an association with stroke. The magnitude of the influence of the serum EPA/AA ratio on the cardiovascular risk increased significantly with elevating HS-CRP levels taken as a continuous variable (p for heterogeneity = 0.007). However, no such association was observed for DHA/AA ratio. CONCLUSION Our findings suggest that a lower serum EPA/AA ratio is associated with a greater risk of cardiovascular disease, especially coronary heart disease, among subjects with higher HS-CRP levels in the general Japanese population.
Collapse
Affiliation(s)
- Toshiharu Ninomiya
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Environmental Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
De Natale C, Minerva V, Patti L, Mazzarella R, Ciano O, Maione S, Luongo D, Naviglio D, Marotta G, Turco S, Ciati R, Melegari C, Rivellese AA, Riccardi G. Effects of baked products enriched with n-3 fatty acids, folates, β-glucans, and tocopherol in patients with mild mixed hyperlipidemia. J Am Coll Nutr 2013; 31:311-9. [PMID: 23529988 DOI: 10.1080/07315724.2012.10720427] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To assess whether a diet containing foods enriched with β-glucans (3.6 g/d), folic acid (1600 μg/d), long-chain (800 mg/d) and short-chain (400 mg/d) n-3 fatty acids, and tocopherols (120 mg/d) is able to modulate positively the cardiovascular risk profile in people at slightly increased cardiovascular risk. METHODS Sixteen subjects with mild plasma lipid abnormalities were studied according to a randomized crossover design. After a 2-week run-in period, they followed a diet containing baked products enriched with active nutrients (active diet) or a diet containing the same products but without active nutrients (control diet) for 1 month and then crossed over to the other diet. At the end of each period, a test meal of the same composition as the corresponding diet was administered, and plasma samples were obtained before and for 6 hours after the meal. Hunger and satiety were evaluated by the visual analog scale at fasting and after the meal. RESULTS Fasting plasma triglycerides were significantly lower after the active versus the control diet (1.56 ± 0.18 vs 1.74 ± 0.16 mmol/l, p < 0.05), as was the postprandial level of chylomicron triglycerides and the insulin peak (p < 0.05). The active diet also reduced fasting homocysteine (8 ± 0.6 vs 10 ± 0.8 μmol/l, p < 0.05) and the feeling of hunger at the fifth and sixth hour (p < 0.05). CONCLUSIONS Baked functional products enriched with n-3 fatty acids, folates, β-glucans, and tocopherols within the context of a balanced diet lower fasting and postprandial plasma triglycerides, fasting homocysteinemia, and the postprandial insulin peak. They induce a greater feeling of satiety with possible beneficial implications on energy intake.
Collapse
Affiliation(s)
- Claudia De Natale
- Department of Clinical and Experimental Medicine, Federico II University Medical School, Naples, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Din JN, Sarma J, Harding SA, Lyall K, Newby DE, Flapan AD. Effect of ω-3 fatty acid supplementation on endothelial function, endogenous fibrinolysis and platelet activation in patients with a previous myocardial infarction: a randomised controlled trial. BMJ Open 2013; 3:e003054. [PMID: 24071458 PMCID: PMC3787492 DOI: 10.1136/bmjopen-2013-003054] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Revised: 07/05/2013] [Accepted: 07/10/2013] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE The mechanisms through which ω-3 fatty acids reduce adverse cardiac events remain uncertain. We aimed to investigate the effect of ω-3 fatty acid supplementation on endothelial vasomotor function, endogenous fibrinolysis, and platelet and monocyte activation in patients with coronary heart disease. DESIGN Randomised, double-blind, placebo-controlled, cross-over trial. SETTING Academic cardiac centre. PARTICIPANTS 20 male patients with a previous myocardial infarction. INTERVENTION ω-3 Fatty acid supplementation (2 g/day for 6 weeks) versus olive oil placebo. OUTCOME MEASURES Peripheral blood was taken for analysis of platelet and monocyte activation, and forearm blood flow (FBF) was assessed in a subset of 12 patients during intrabrachial infusions of acetylcholine, substance P and sodium nitroprusside. Stimulated plasma tissue plasminogen activator (t-PA) concentrations were measured during substance P infusion. RESULTS All vasodilators caused dose-dependent increases in FBF (p<0.0001). ω-3 Fatty acid supplementation did not affect endothelium-dependent vasodilation with acetylcholine and substance P compared with placebo (p=0.5 and 0.9). Substance P caused a dose-dependent increase in plasma t-PA concentrations (p<0.0001), which was not affected by ω-3 fatty acid supplementation (p=0.9). ω-3 Fatty acids did not affect platelet-monocyte aggregation, platelet P-selectin or CD40L, or monocyte CD40. CONCLUSIONS We have demonstrated that dietary supplementation with ω-3 fatty acids does not affect endothelial vasomotor function, endothelial t-PA release, or platelet and monocyte activation in patients with coronary heart disease. Cardiac benefits conferred by ω-3 fatty acids in coronary heart disease are unlikely to be mediated through effects on these systems.
Collapse
Affiliation(s)
- Jehangir N Din
- Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, UK
| | - Jaydeep Sarma
- North West Heart Centre, Wythenshawe Hospital, Manchester, UK
| | - Scott A Harding
- Department of Cardiology, Wellington Hospital, Wellington, New Zealand
| | - Karin Lyall
- Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, UK
| | - David E Newby
- Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, UK
| | - Andrew D Flapan
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
| |
Collapse
|
34
|
Holdsworth CT, Copp SW, Hirai DM, Ferguson SK, Sims GE, Hageman KS, Stebbins CL, Poole DC, Musch TI. The effects of dietary fish oil on exercising skeletal muscle vascular and metabolic control in chronic heart failure rats. Appl Physiol Nutr Metab 2013; 39:299-307. [PMID: 24552370 DOI: 10.1139/apnm-2013-0301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Impaired vasomotor control in chronic heart failure (CHF) is due partly to decrements in nitric oxide synthase (NOS) mediated vasodilation. Exercising muscle blood flow (BF) is augmented with polyunsaturated fatty acid (PUFA) supplementation via fish oil (FO) in healthy rats. We hypothesized that FO would augment exercising muscle BF in CHF rats via increased NO-bioavailability. Myocardial infarction (coronary artery ligation) induced CHF in Sprague-Dawley rats which were subsequently randomized to dietary FO (20% docosahexaenoic acid, 30% eicosapentaenoic acid, n = 15) or safflower oil (SO, 5%, n = 10) for 6-8 weeks. Mean arterial pressure (MAP), blood [lactate], and hindlimb muscles BF (radiolabeled microspheres) were determined at rest, during treadmill exercise (20 m·min(-1), 5% incline) and exercise + N(G)-nitro-l-arginine-methyl-ester (l-NAME) (a nonspecific NOS inhibitor). FO did not change left ventricular end-diastolic pressure (SO: 14 ± 2; FO: 11 ± 1 mm Hg, p > 0.05). During exercise, MAP (SO: 128 ± 3; FO: 132 ± 3 mm Hg) and blood [lactate] (SO: 3.8 ± 0.4; FO: 4.6 ± 0.5 mmol·L(-1)) were not different (p > 0.05). Exercising hindlimb muscle BF was lower in FO than SO (SO: 120 ± 11; FO: 93 ± 4 mL·min(-1)·100 g(-1), p < 0.05) but was not differentially affected by l-NAME. Specifically, 17 of 28 individual muscle BF's were lower (p < 0.05) in FO demonstrating that PUFA supplementation with FO in CHF rats does not augment muscle BF during exercise but may lower metabolic cost.
Collapse
Affiliation(s)
- Clark T Holdsworth
- a Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506-5802, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
|
36
|
Candelario J, Chachisvilis M. Activity of Bradykinin B2 Receptor Is Regulated by Long-Chain Polyunsaturated Fatty Acids. PLoS One 2013; 8:e68151. [PMID: 23826374 PMCID: PMC3694885 DOI: 10.1371/journal.pone.0068151] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 05/26/2013] [Indexed: 01/22/2023] Open
Abstract
The molecular and cellular mechanisms by which long-chain polyunsaturated fatty acids (LCPUFA) exert their beneficial effects on cardiovascular health remain obscure. While both LCPUFA and bradykinin (BK) signaling pathway play a role in the cardiovascular system, any direct link between the two is yet to be established. Using picosecond time-resolved fluorescence microscopy and a genetically engineered bradykinin B2 receptor (B2R) sensor (B2K-CC), we detected LCPUFA-induced conformational responses in the B2R similar to those caused by its cognate ligand, BK. The selective B2R antagonist (HOE-140) blocked the eicosapentaenoic acid (EPA, C20∶5, n-3) induced conformational response of the B2K-CC. Further analysis suggests that LCPUFA are capable of direct, B2R-dependent activation of extracellular ligand-regulated kinases (ERK). From a wide range of fatty acids studied, varying in chain length, saturation, and position of double bonds, EPA, docosahexaenoic (DHA, C22∶6, n-3), docosadienoic (DDA, C22∶2, n-6), and dihomo-gamma linoleic (DGLA, C20∶3, n-6) fatty acids caused the highest ERK phosphorylation. EPA or DHA dependent ERK phosphorylation was inhibited by the selective B2R antagonist. We show that LCPUFA stimulates downstream signaling by B2R such as B2R-dependent phosphorylation and expression regulation of endothelial nitric-oxide synthase (eNOS). Further analysis indicated that LCPUFA also alters levels of the eNOS transcription factor, kruppel-like factor 2 (KLF2). Moreover we show that EPA increases membrane fluidity on the same time scale as B2R conformational response, suggesting that partitioning of LCPUFA into bilayer is a primary step required for receptor activation. In summary our data show that LCPUFA activate B2R receptor at nanomolar concentrations suggesting a novel molecular mechanism by which fatty acids may affect the cardiovascular system.
Collapse
Affiliation(s)
- Jose Candelario
- La Jolla Bioengineering Institute, San Diego, California, United States of America
| | | |
Collapse
|
37
|
Role of omega-3 fatty acids in obesity, metabolic syndrome, and cardiovascular diseases: a review of the evidence. J Physiol Biochem 2013; 69:633-51. [DOI: 10.1007/s13105-013-0265-4] [Citation(s) in RCA: 277] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 04/17/2013] [Indexed: 01/17/2023]
|
38
|
Lipids for intravenous nutrition in hospitalised adult patients: a multiple choice of options. Proc Nutr Soc 2013; 72:263-76. [PMID: 23663322 DOI: 10.1017/s0029665113001250] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Lipids used in parenteral nutrition provide energy, building blocks and essential fatty acids. Traditionally, these lipids have been based on n-6 PUFA-rich vegetable oils particularly soyabean oil. This may not be optimal because soyabean oil may present an excessive supply of linoleic acid. Alternatives to use of soyabean oil include its partial replacement by medium-chain TAG, olive oil or fish oil, either alone or in combination. Lipid emulsions containing these alternatives are well tolerated without adverse effects in a wide range of hospitalised adult patients. Lipid emulsions that include fish oil have been used in parenteral nutrition in adult patients' post-surgery (mainly gastrointestinal). This has been associated with alterations in patterns of inflammatory mediators and in immune function and, in some studies, a reduction in length of intensive care unit and hospital stay. These benefits are emphasised through recent meta-analyses. Perioperative administration of fish oil may be superior to post-operative administration. Parenteral fish oil has been used in critically ill adults. Here, the influence on inflammatory processes, immune function and clinical endpoints is not clear, since there are too few studies and those that are available report contradictory findings. However, some studies found reduced inflammation, improved gas exchange and shorter length of hospital stay in critically ill patients if they receive fish oil. More and better trials are needed in patient groups in which parenteral nutrition is used and where fish oil may offer benefits.
Collapse
|
39
|
Dessì M, Noce A, Bertucci P, Manca di Villahermosa S, Zenobi R, Castagnola V, Addessi E, Di Daniele N. Atherosclerosis, dyslipidemia, and inflammation: the significant role of polyunsaturated Fatty acids. ISRN INFLAMMATION 2013; 2013:191823. [PMID: 24049656 PMCID: PMC3767348 DOI: 10.1155/2013/191823] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 04/09/2013] [Indexed: 12/22/2022]
Abstract
Phospholipids play an essential role in cell membrane structure and function. The length and number of double bonds of fatty acids in membrane phospholipids are main determinants of fluidity, transport systems, activity of membrane-bound enzymes, and susceptibility to lipid peroxidation. The fatty acid profile of serum lipids, especially the phospholipids, reflects the fatty acid composition of cell membranes. Moreover, long-chain n-3 polyunsatured fatty acids decrease very-low-density lipoprotein assembly and secretion reducing triacylglycerol production. N-6 and n-3 polyunsatured fatty acids are the precursors of signalling molecules, termed "eicosanoids," which play an important role in the regulation of inflammation. Eicosanoids derived from n-6 polyunsatured fatty acids have proinflammatory actions, while eicosanoids derived from n-3 polyunsatured fatty acids have anti-inflammatory ones. Previous studies showed that inflammation contributes to both the onset and progression of atherosclerosis: actually, atherosclerosis is predominantly a chronic low-grade inflammatory disease of the vessel wall. Several studies suggested the relationship between long-chain n-3 polyunsaturated fatty acids and inflammation, showing that fatty acids may decrease endothelial activation and affect eicosanoid metabolism.
Collapse
Affiliation(s)
- Mariarita Dessì
- Department of Laboratory Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Annalisa Noce
- Nephrology and Hypertension Unit, Department of System Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Pierfrancesco Bertucci
- Department of Laboratory Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Simone Manca di Villahermosa
- Nephrology and Hypertension Unit, Department of System Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Rossella Zenobi
- Department of Laboratory Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Veronica Castagnola
- Nephrology and Hypertension Unit, Department of System Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Eliana Addessi
- Nephrology and Hypertension Unit, Department of System Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| | - Nicola Di Daniele
- Nephrology and Hypertension Unit, Department of System Medicine, “Tor Vergata” University Hospital, Viale Oxford 81, 00133 Rome, Italy
| |
Collapse
|
40
|
Eicosapentaenoic Acid supplementation changes Fatty Acid composition and corrects endothelial dysfunction in hyperlipidemic patients. Cardiol Res Pract 2012; 2012:754181. [PMID: 23326753 PMCID: PMC3541561 DOI: 10.1155/2012/754181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 09/11/2012] [Indexed: 11/18/2022] Open
Abstract
We investigated the effects of purified eicosapentaenoic acid (EPA) on vascular endothelial function and free fatty acid composition in Japanese hyperlipidemic subjects. In subjects with hyperlipidemia (total cholesterol ≥220 mg/dL and/or triglycerides ≥150 mg/dL), lipid profile and forearm blood flow (FBF) during reactive hyperemia were determined before and 3 months after supplementation with 1800 mg/day EPA. Peak FBF during reactive hyperemia was lower in the hyperlipidemic group than the normolipidemic group. EPA supplementation did not change serum levels of total, HDL, or LDL cholesterol, apolipoproteins, remnant-like particle (RLP) cholesterol, RLP triglycerides, or malondialdehyde-modified LDL cholesterol. EPA supplementation did not change total free fatty acid levels in serum, but changed the fatty acid composition, with increased EPA and decreased linoleic acid, γ-linolenic acid, and dihomo-γ-linolenic acid. EPA supplementation recovered peak FBF after 3 months. Peak FBF recovery was correlated positively with EPA and EPA/arachidonic acid levels and correlated inversely with dihomo-γ-linolenic acid. EPA supplementation restores endothelium-dependent vasodilatation in hyperlipidemic patients despite having no effect on serum cholesterol and triglyceride patterns. These results suggest that EPA supplementation may improve vascular function at least partly via changes in fatty acid composition.
Collapse
|
41
|
Omega-3 polyunsaturated fatty acids reduce vascular endothelial growth factor production and suppress endothelial wound repair. J Cardiovasc Transl Res 2012; 6:287-93. [PMID: 22993129 DOI: 10.1007/s12265-012-9409-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 08/30/2012] [Indexed: 01/06/2023]
Abstract
Long-chain polyunsaturated omega-3 fatty acids (n-3 PUFAs) such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have diverse beneficial effects on cardiovascular diseases and have been used widely as supplements in reducing the risk of cardiovascular diseases. The beneficial effects are believed to be related to the anti-inflammatory and antioxidant action of n-3 PUFA. EPA and DHA can inhibit inflammatory cytokine-induced endothelial activation and reduce endothelial migration and proliferation. Revascularisation is the major therapeutic approach for end-stage cardiovascular diseases, and endothelial migration and proliferation are essential for the success of revascularisation. The aim of this study was to investigate the role of n-3 PUFAs on vascular endothelial wound repair. A scratch-wound repair assay was carried out in cultured human microvascular endothelial cells (HMEC-1) with and without different concentrations of DHA or EPA. The effect of DHA and EPA on HMEC-1 proliferation was examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The effect of DHA and EPA on vegf mRNA expression was detected by real-time RT-PCR and vascular endothelial growth factor (VEGF) protein secretion by enzyme-linked immunosorbent assay. DHA and EPA dose-dependently suppressed HMEC-1 cell proliferation and wound repair. DHA and EPA treatment did not induce significant HMEC-1 cell death. The treatment, however, significantly suppressed vegf mRNA expression and protein secretion in both normoxia and hypoxia culture conditions. The addition of exogenous VEGF prevented DHA- and EPA-mediated suppression of HMEC-1 cell proliferation. DHA and EPA have anti-angiogenic effect partially through vegf suppression. The use of DHA and EPA may benefit angiogenic diseases, but may have potential side effects to patients undergoing revascularisation therapy. Further studies will be required to confirm the effect of n-3 PUFAs on vascular repair.
Collapse
|
42
|
Balakumar P, Taneja G. Fish oil and vascular endothelial protection: bench to bedside. Free Radic Biol Med 2012; 53:271-9. [PMID: 22584102 DOI: 10.1016/j.freeradbiomed.2012.05.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 03/16/2012] [Accepted: 05/03/2012] [Indexed: 02/07/2023]
Abstract
Fish oil is recommended for the management of hypertriglyceridemia and to prevent secondary cardiovascular disorders. Fish oil is a major source of ω-3-polyunsaturated fatty acids (PUFAs) such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Clinical studies suggest that fish oil not only prevents the incidence of detrimental cardiovascular events, but also lowers the cardiovascular mortality rate. In addition to a classic lipid-lowering action, ω-3-PUFAs in fish oil could regulate blood pressure and enhance vascular integrity and compliance. Additionally, ω-3-PUFAs have the ability to protect vascular endothelial cells by decreasing oxidative stress, halting atherosclerotic events, and preventing vascular inflammatory and adhesion cascades. Intriguingly, recent studies have demonstrated that ω-3-PUFAs improve the function of vascular endothelium by enhancing the generation and bioavailability of endothelium-derived relaxing factor (nitric oxide) through upregulation and activation of endothelial nitric oxide synthase (eNOS). This certainly opens up a new area of research identifying potential mechanisms influencing fish oil-mediated functional regulatory action on vascular endothelium. We address in this review the potential of fish oil to prevent vascular endothelial dysfunction and associated cardiovascular disorders. Moreover, the mechanisms pertaining to fish oil-mediated eNOS activation and nitric oxide generation in improving endothelial function are delineated. We finally suggest the importance of further studies to determine the dose adjustment of fish oil with an optimal ratio of EPA and DHA for achieving consistent cardiovascular protection.
Collapse
Affiliation(s)
- Pitchai Balakumar
- Cardiovascular Pharmacology Division, Department of Pharmacology, Institute of Pharmacy, Rajendra Institute of Technology and Sciences, Sirsa 125 055, India.
| | | |
Collapse
|
43
|
Docosahexaenoic acid monoacylglyceride decreases endothelin-1 induced Ca(2+) sensitivity and proliferation in human pulmonary arteries. Am J Hypertens 2012; 25:756-63. [PMID: 22534795 DOI: 10.1038/ajh.2012.45] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Pulmonary artery vasoconstriction and vascular remodeling contribute to a sustained elevation of pulmonary vascular resistance and pressure in patients with pulmonary arterial hypertension (PH), an often fatal hemodynamic disease. The effect of docosahexaenoic acid monoacylglyceride (MAG-DHA) and the role of the 17 kDa protein kinase C-potentiated inhibitor protein (CPI-17) were determined on vasoconstriction and smooth muscle cell proliferation of human pulmonary arteries (HPA). METHODS HPA were obtained from 16 patients undergoing lung resection for carcinoma. The mechanical tension and Ca(2+) sensitivity were measured on arterial rings treated with endothelin-1 (ET-1) in the absence or presence of MAG-DHA. The effect of MAG-DHA on the level of proliferation of smooth muscle cells isolated from HPA was evaluated in order to determine the role of CPI-17 protein. RESULTS MAG-DHA treatment decreased the reactivity and Ca(2+) sensitivity induced by ET-1 in HPA. MAG-DHA treatment also decreased the expression of vascular endothelial growth factor (VEGF) induced by ET-1. Moreover, both VEGF inhibitor and MAG-DHA treatments reduced Ca(2+) hypersensitivity induced by ET-1, which was associated to a reduction in CPI-17 and myosin-binding subunit of the myosin light chain phosphatase (MYPT-1) phosphorylation levels. Proliferation of ET-1-stimulated HPA smooth muscle cells (PASMc) was also decreased following CPI-17 small interfering RNA transfection and MAG-DHA treatments. Western blot analyses revealed that MAG-DHA treatment resulted in decreased phosphorylation levels of CPI-17 and extracellular signal-regulated kinases (ERK) in PASMc treated with ET-1. CONCLUSIONS We have demonstrated that VEGF interacts with CPI-17 signaling pathway resulting in an increase in Ca(2+) sensitivity and proliferation of PASMc, whereas MAG-DHA treatment reversed these effects.
Collapse
|
44
|
Sasaki J, Yokoyama M, Matsuzaki M, Saito Y, Origasa H, Ishikawa Y, Oikawa S, Itakura H, Hishida H, Kita T, Kitabatake A, Nakaya N, Sakata T, Shimada K, Shirato K, Matsuzawa Y. Relationship between Coronary Artery Disease and Non-HDL-C, and Effect of Highly Purified EPA on the Risk of Coronary Artery Disease in Hypercholesterolemic Patients Treated with Statins: Sub-Analysis of the Japan EPA Lipid Intervention Study (JELIS). J Atheroscler Thromb 2012; 19:194-204. [DOI: 10.5551/jat.8326] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
45
|
Sasaki J, Miwa T, Odawara M. Administration of highly purified eicosapentaenoic acid to statin-treated diabetic patients further improves vascular function. Endocr J 2012; 59:297-304. [PMID: 22293584 DOI: 10.1507/endocrj.ej11-0394] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
We prospectively examined the additional effects of highly purified eicosapentaenoic acid (EPA) particularly on the vascular function of diabetic patients with hypercholesterolemia receiving statin therapy. We enrolled 28 patients with type 2 diabetes complicated by dyslipidemia who had been treated with statins for at least one year. The patients were randomly assigned to 2 groups: administration of statin alone (group S: n = 13) and addition of EPA to the current statin therapy (group SE: n = 15). The highly purified EPA was administered at a dose of 1,800 mg/day for 6 months. To evaluate vascular function, the duration of reactive hyperemia (DRH), which is the time required for forearm blood flow to return to the basal level after inducing reactive hyperemia, was measured using strain gauge plethysmography. There were no significant differences in the clinical background factors between the 2 groups. Low-density lipoprotein cholesterol (LDL-C), and non-high-density lipoprotein cholesterol levels significantly decreased after 6 months only in group SE. Compared with the baseline data, no significant change in DRH was observed after 6 months in group S. By contrast, DRH was significantly prolonged after 6 months in group SE, indicating that the addition of highly purified EPA improved vascular function. Our results showed that in patients with type 2 diabetes and receiving statin therapy whose LDL-C level was less than 100 mg/dL, the addition of highly purified EPA for 6 months significantly improved vascular function.
Collapse
Affiliation(s)
- Junko Sasaki
- Department of Diabetes, Endocrinology and Metabolism, Tokyo Medical University, Tokyo 160-0023, Japan
| | | | | |
Collapse
|
46
|
Omega-3 fatty acids and cardiovascular disease: effects on risk factors, molecular pathways, and clinical events. J Am Coll Cardiol 2011; 58:2047-67. [PMID: 22051327 DOI: 10.1016/j.jacc.2011.06.063] [Citation(s) in RCA: 1139] [Impact Index Per Article: 87.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 06/08/2011] [Accepted: 06/16/2011] [Indexed: 11/22/2022]
Abstract
We reviewed available evidence for cardiovascular effects of n-3 polyunsaturated fatty acid (PUFA) consumption, focusing on long chain (seafood) n-3 PUFA, including their principal dietary sources, effects on physiological risk factors, potential molecular pathways and bioactive metabolites, effects on specific clinical endpoints, and existing dietary guidelines. Major dietary sources include fatty fish and other seafood. n-3 PUFA consumption lowers plasma triglycerides, resting heart rate, and blood pressure and might also improve myocardial filling and efficiency, lower inflammation, and improve vascular function. Experimental studies demonstrate direct anti-arrhythmic effects, which have been challenging to document in humans. n-3 PUFA affect a myriad of molecular pathways, including alteration of physical and chemical properties of cellular membranes, direct interaction with and modulation of membrane channels and proteins, regulation of gene expression via nuclear receptors and transcription factors, changes in eicosanoid profiles, and conversion of n-3 PUFA to bioactive metabolites. In prospective observational studies and adequately powered randomized clinical trials, benefits of n-3 PUFA seem most consistent for coronary heart disease mortality and sudden cardiac death. Potential effects on other cardiovascular outcomes are less-well-established, including conflicting evidence from observational studies and/or randomized trials for effects on nonfatal myocardial infarction, ischemic stroke, atrial fibrillation, recurrent ventricular arrhythmias, and heart failure. Research gaps include the relative importance of different physiological and molecular mechanisms, precise dose-responses of physiological and clinical effects, whether fish oil provides all the benefits of fish consumption, and clinical effects of plant-derived n-3 PUFA. Overall, current data provide strong concordant evidence that n-3 PUFA are bioactive compounds that reduce risk of cardiac death. National and international guidelines have converged on consistent recommendations for the general population to consume at least 250 mg/day of long-chain n-3 PUFA or at least 2 servings/week of oily fish.
Collapse
|
47
|
Eicosapentaenoic acid reduces ischemic ventricular fibrillation via altering monophasic action potential in pigs. J Mol Cell Cardiol 2011; 51:329-36. [DOI: 10.1016/j.yjmcc.2011.05.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 05/13/2011] [Accepted: 05/23/2011] [Indexed: 11/22/2022]
|
48
|
Newens KJ, Thompson AK, Jackson KG, Wright J, Williams CM. DHA-rich fish oil reverses the detrimental effects of saturated fatty acids on postprandial vascular reactivity. Am J Clin Nutr 2011; 94:742-8. [PMID: 21831993 DOI: 10.3945/ajcn.110.009233] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Experimental elevation of nonesterified fatty acids (NEFAs) impairs endothelial function, but the effect of NEFA composition is unknown. OBJECTIVE The objective was to test the effect of acute elevation of NEFAs enriched with either saturated fatty acids (SFAs) or SFAs with long-chain (LC) n-3 (omega-3) PUFAs on vascular function measured via flow-mediated dilatation (FMD), laser Doppler iontophoresis (LDI), and digital volume pulse (DVP). DESIGN In 59 subjects (30 men and 29 women), repeated oral fat feeding of either palm stearin (SFA) or palm stearin with DHA-rich fish oil (SFA + LC n-3 PUFA) was performed on 2 separate occasions with continuous heparin infusion to elevate NEFAs for a duration of 60 to 240 min. Vascular function was measured at baseline and at the end of NEFA elevation; venous blood was collected for measurement of lipids and circulating markers of endothelial function. RESULTS NEFA elevation during consumption of the SFA-rich drinks was associated with a marked impairment of FMD, whereas consumption of SFAs + LC n-3 PUFAs improved FMD response, with a mean (±SEM) difference of 2.06 ± 0.29% (P < 0.001). Positive correlations were found with percentage weight of LC n-3 PUFAs in circulating NEFAs and change in FMD response [Spearman's rho (r(s)) = 0.460, P < 0.001]. LDI measures increased during both treatments (P ≤ 0.026), and there was no change in DVP indexes. CONCLUSIONS The composition of NEFAs can acutely affect FMD. The beneficial effect of LC n-3 PUFAs on postprandial vascular function warrants further investigation but may be mediated by nitric oxide-independent mechanisms. This trial is registered at clinicaltrials.gov as NCT01351324.
Collapse
Affiliation(s)
- Katie J Newens
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, United Kingdom.
| | | | | | | | | |
Collapse
|
49
|
Abstract
Compelling evidence exists for the cardioprotective benefits resulting from consumption of fatty acids from fish oils, EPA (20:5n-3) and DHA (22:6n-3). EPA and DHA alter membrane fluidity, interact with transcription factors such as PPAR and sterol regulatory element binding protein, and are substrates for enzymes including cyclooxygenase, lipoxygenase and cytochrome P450. As a result, fish oils may improve cardiovascular health by altering lipid metabolism, inducing haemodynamic changes, decreasing arrhythmias, modulating platelet function, improving endothelial function and inhibiting inflammatory pathways. The independent effects of EPA and DHA are poorly understood. While both EPA and DHA decrease TAG levels, only DHA appears to increase HDL and LDL particle size. Evidence to date suggests that DHA is more efficient in decreasing blood pressure, heart rate and platelet aggregation compared to EPA. Fish oil consumption appears to improve arterial compliance and endothelial function; it is not yet clear as to whether differences exist between EPA and DHA in their vascular effects. In contrast, the beneficial effect of fish oils on inflammation and insulin sensitivity observed in vitro and in animal studies has not been confirmed in human subjects. Further investigation to clarify the relative effects of consuming EPA and DHA at a range of doses would enable elaboration of current understanding regarding cardioprotective effects of consuming oily fish and algal sources of long chain n-3 PUFA, and provide clearer evidence for the clinical therapeutic potential of consuming either EPA or DHA-rich oils.
Collapse
|
50
|
Gao JY, Yasuda S, Tsuburaya R, Ito Y, Shiroto T, Hao K, Aizawa K, Kikuchi Y, Ito K, Shimokawa H. Long-Term Treatment With Eicosapentaenoic Acid Ameliorates Myocardial Ischemia-Reperfusion Injury in Pigs In Vivo - Involvement of Rho-Kinase Pathway Inhibition -. Circ J 2011; 75:1843-51. [DOI: 10.1253/circj.cj-11-0209] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jun Yi Gao
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Satoshi Yasuda
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Ryuji Tsuburaya
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Yoshitaka Ito
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Takashi Shiroto
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Kiyotaka Hao
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Kentaro Aizawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Yoku Kikuchi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Kenta Ito
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| |
Collapse
|