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Egalini F, Guardamagna O, Gaggero G, Varaldo E, Giannone B, Beccuti G, Benso A, Broglio F. The Effects of Omega 3 and Omega 6 Fatty Acids on Glucose Metabolism: An Updated Review. Nutrients 2023; 15:2672. [PMID: 37375575 PMCID: PMC10301273 DOI: 10.3390/nu15122672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Massive changes have occurred in our diet. A growing consumption of vegetal oils rich in omega-6 (ω-6) and a depletion of omega-3 (ω-3) fatty acids (FAs) in our food has led to an imbalance between ω-3 and ω-6. In particular, eicosapentaenoic (EPA)/arachidonic acid (AA) ratio seems to be an indicator of this derangement, whose reduction is associated to the development of metabolic diseases, such as diabetes mellitus. Our aim was therefore to investigate the literature on the effects of ω-3 and ω-6 FAs on glucose metabolism. We discussed emerging evidence from pre-clinical studies and from clinical trials. Notably, conflicting results emerged. Source of ω-3, sample size, ethnicity, study duration and food cooking method may be responsible for the lack of univocal results. High EPA/AA ratio seems to be a promising indicator of better glycemic control and reduced inflammation. On the other hand, linoleic acid (LA) appears to be also associated to a minor incidence of type 2 diabetes mellitus, although it is still not clear if the outcome is related to a reduced production of AA or to its intrinsic effect. More data derived from multicenter, prospective randomized clinical trials are needed.
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Affiliation(s)
- Filippo Egalini
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Ornella Guardamagna
- Paediatric Endocrinology, Department of Public Health and Paediatric Sciences, University of Turin, 10126 Turin, Italy
| | - Giulia Gaggero
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Emanuele Varaldo
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Beatrice Giannone
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Guglielmo Beccuti
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Andrea Benso
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Fabio Broglio
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
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Honda T, Chen S, Hata J, Shibata M, Furuta Y, Oishi E, Sakata S, Kitazono T, Ninomiya T. Changes in the Eicosapentaenoic Acid to Arachidonic Acid Ratio in Serum over 10 Years in a Japanese Community: The Hisayama Study. J Atheroscler Thromb 2022. [PMID: 36089395 DOI: 10.5551/jat.63727] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM Circulating omega-3 and omega-6 polyunsaturated fatty acids may to contribute to cardiovascular health at the population level. Over a decade, we investigated changes in the serum eicosapentaenoic acid (EPA) to arachidonic acid (AA) ratio, and in serum concentrations of the individual fatty acids, in a Japanese community. METHODS Community surveys took place in 2002-2003 and 2012-2013 in a rural area of Japan. The community surveys included 3,194 and 3,220 community dwellers aged ≥ 40 years who did not take EPA medication in 2002-2003 and 2012-2013, respectively. Fatty acid fractionations in serum were measured using a gas chromatography method. Changes in the serum EPA/AA ratio over time were examined using linear mixed models. RESULTS Overall, the average serum EPA/AA ratio decreased over the 10 years. A decreasing trend in the serum EPA/AA ratio occurred in all age groups except participants aged ≥ 80 years, with larger decreases in the younger age groups. A similar decline in serum EPA/AA ratio occurred in participants with and those without lipid-lowering therapy. Serum EPA concentrations were slightly increased in the whole population but remained stable or even decreased in participants aged 40-69. In contrast, the average serum AA concentrations increased in all age groups. CONCLUSION In a Japanese community, the serum EPA/AA ratio decreased over 10 years at the population level, especially in middle-aged participants.
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Affiliation(s)
- Takanori Honda
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
| | - Sanmei Chen
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Department of Global Health Nursing, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Jun Hata
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
| | - Mao Shibata
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University
| | - Yoshihiko Furuta
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University.,Division of Medical Engineering and Healthy Longevity, Graduate School of Medical Sciences, Kyushu University
| | - Emi Oishi
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
| | - Satoko Sakata
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
| | - Takanari Kitazono
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University
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Matsumoto I, Moriya S, Kurozumi M, Namba T, Takagi Y. Simultaneous evaluation of fatty acid and triglycerides after percutaneous coronary intervention. J Cardiol 2022; 80:149-154. [DOI: 10.1016/j.jjcc.2022.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/13/2022] [Accepted: 02/16/2022] [Indexed: 12/13/2022]
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Ogura M. Unresolved Issues Regarding Proper Intake of Omega-3 Fatty Acids. Circ J 2021; 85:1754-1755. [PMID: 34092757 DOI: 10.1253/circj.cj-21-0356] [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: 11/09/2022]
Affiliation(s)
- Masatsune Ogura
- Department of Molecular Innovation in Lipidology, National Cerebral and Cardiovascular Center Research Institute
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