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Li S, Li R, Hu X, Zhang Y, Wang D, Gao Y, Wang J, Wang Q, Song C, Huang S, Zhang E, Zhang J, Xia Z, Wan C. Omega-3 supplementation improves depressive symptoms, cognitive function and niacin skin flushing response in adolescent depression: A randomized controlled clinical trial. J Affect Disord 2024; 345:394-403. [PMID: 38190276 DOI: 10.1016/j.jad.2023.10.151] [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: 03/16/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Depressive disorder in adolescents is a major health problem with inadequate treatment. Omega-3 (ω3) polyunsaturated fatty acids are a promising adjuvant therapy in adult depression. The primary objective of this study was to investigate the efficacy of adjuvant ω3 treatment on depressive symptoms in adolescent depression. Secondarily, we explored the effects of ω3 on cognitive function and memory and niacin skin flushing response (NSFR), as their robust associations with adolescent depression. METHODS A total of 71 adolescents with depression (aged 13-24; 59.2 % female) were randomly assigned to receive ω3 plus Paxil (n = 34) or Paxil alone (n = 37) for 12 weeks. Primary outcome was depression severity according to scores on Montgomery-Asberg Depression Rating Scale (MADRS). Secondary outcomes were cognitive function and memory, and NSFR. RESULTS Significant improvements in depressive symptoms over time (p = 0.00027 at week 12) were observed in the ω3 + Paxil group compared with Paxil group. Additionally, in the ω3 + Paxil group, significant improvements in memory over time, and greater cognitive function and NSFR were also observed compared with the Paxil group; the NSFR was negatively correlated with MADRS scores at baseline. LIMITATIONS The trial was open label; thus, the outcome measures should be viewed as preliminary since inherent bias in outcomes due to the potential of a placebo effect. CONCLUSIONS Our results demonstrate that adjuvant ω3 treatment is effective for reducing depressive symptoms as well as improving cognitive function, memory and the NSFR; these results suggest ω3 is a promising adjuvant treatment for adolescent depression.
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Affiliation(s)
- Shuhui Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Rulan Li
- The First People's Hospital of Zigong, Zigong, China
| | - Xiaowen Hu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yue Zhang
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Dandan Wang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Gao
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Jinfeng Wang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Wang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Chuanfu Song
- The Fourth People's Hospital of Wuhu, Wuhu, China
| | - Shucai Huang
- The Fourth People's Hospital of Wuhu, Wuhu, China
| | - En Zhang
- The Fourth People's Hospital of Wuhu, Wuhu, China
| | - Juan Zhang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zhong Xia
- The Fourth People's Hospital of Wuhu, Wuhu, China.
| | - Chunling Wan
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; Shanghai Mental Health Center, Shanghai Key Laboratory of Psychiatry Disorders, Shanghai Jiao Tong University, Shanghai, China.
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Zhang H, Liu X, Li B, Zhang Y, Gao H, Zhao X, Leng K, Song Z. Krill oil treatment ameliorates lipid metabolism imbalance in chronic unpredicted mild stress-induced depression-like behavior in mice. Front Cell Dev Biol 2023; 11:1180483. [PMID: 37564375 PMCID: PMC10411196 DOI: 10.3389/fcell.2023.1180483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 07/03/2023] [Indexed: 08/12/2023] Open
Abstract
The pathology of depression involves various factors including the interaction between genes and the environment. The deficiency of n-3 polyunsaturated fatty acids (n-3 PUFAs) in the brain and depressive symptoms are closely related. Krill oil contains abundant amounts of n-3 PUFAs incorporated in phosphatidylcholine. However, the effect of krill oil treatment on depression-like behaviors induced by chronic stress and its molecular mechanism in the brain remain poorly understood. Here, we used a chronic unpredictable mild stress (CUMS) model to evaluate the effect of krill oil on depression-like behaviors and explored its molecular mechanism through lipid metabolomics and mRNA profiles in the whole brain. We observed that CUMS-induced depression-like behaviors were ameliorated by krill oil supplementation in mice. The metabolism of glycerophospholipids and sphingolipids was disrupted by CUMS treatment, which were ameliorated after krill oil supplementation. Further analysis found that differently expressed genes after krill oil supplementation were mainly enriched in the membrane structures and neuroactive ligand-receptor interaction pathway, which may be responsible for the amelioration of CUMS-induced depression-like behaviors. Altogether, our results uncovered the relationship between lipid metabolism and CUMS, and provided new strategies for the prevention and treatment of depression.
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Affiliation(s)
- Hao Zhang
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao, China
| | - Xiaofang Liu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Bo Li
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao, China
| | - Yi Zhang
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao, China
| | - Hua Gao
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao, China
| | - Xianyong Zhao
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Kailiang Leng
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Zhenhua Song
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao, China
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Bharti V, Bhardwaj A, Hood K, Elias DA, Metcalfe AWS, Kim JS. A systematic review and meta-analysis of lipid metabolomic signatures of Major Depressive Disorder. J Psychiatr Res 2021; 139:197-205. [PMID: 34087517 DOI: 10.1016/j.jpsychires.2021.05.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/27/2021] [Accepted: 05/20/2021] [Indexed: 12/23/2022]
Abstract
The aim of this meta-analysis was to provide a comprehensive synthesis of the evidence examining biomarker signatures in MDD patients including lipids, lipid regulatory proteins (LRP), and polyunsaturated fatty acid (PUFA) as compared to healthy individuals. We performed meta-analyses and meta-regression of the studies comparing lipid, LRP, and PUFA levels between MDD patients and healthy individuals by searching Embase, Ovid Medline, Scopus, PsycINFO, PubMed, and Cochrane databases. Search was performed in these databases up to September 2019 and 29 studies were included. Levels of lipid parameter triglyceride (TG) (SMD 0.55, 95% CI 0.30-0.80, p < 0.0001) were higher while total cholesterol (TC) (SMD = -0.46, 95%CI -0.93 to -0.001, p = 0.04) and very low-density lipoprotein (VLDL) (SMD = -0.46, 95%CI -0.71 to -0.20, p = 0.02) were lower in MDD patients than controls. Subgroup analysis for age showed that the levels of high-density lipoprotein (HDL) were lower in ≥40-year age group (SMD = -0.38, 95%CI -0.70 to -0.06, p = 0.01) and levels of TC was lower in MDD patients in studies from Asian countries (SMD = -0.74, 95%CI -1.37 to -0.10, p = 0.02). TG levels were found to be high all subgroups in MDD patients than controls. A negative association between TC levels and use of lipid lowering medications and a positive association between smoking and LDL levels was found using meta-regression analysis. This study will be useful for physicians when considering the assessment of lipidand LRP profiles in MDD patients to reduce the cardiovascular morbidity and mortality.
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Affiliation(s)
- Veni Bharti
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Canada; Health and Environments Research Centre (HERC) Laboratory, Faculty of Medicine, Dalhousie University, Canada
| | - Aseem Bhardwaj
- Health and Environments Research Centre (HERC) Laboratory, Faculty of Medicine, Dalhousie University, Canada
| | - Kalli Hood
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Canada; Health and Environments Research Centre (HERC) Laboratory, Faculty of Medicine, Dalhousie University, Canada
| | - David A Elias
- Canadian Health Solutions, Canada; Dalhousie Medicine New Brunswick, Dalhousie University, Canada
| | - Arron W S Metcalfe
- Canadian Health Solutions, Canada; Canadian Imaging Research Centre, Canada
| | - Jong Sung Kim
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Canada; Health and Environments Research Centre (HERC) Laboratory, Faculty of Medicine, Dalhousie University, Canada.
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Hamazaki K. Role of Omega-3 Polyunsaturated Fatty Acids in Mental Health-Studies from Japan. J Oleo Sci 2019; 68:511-515. [DOI: 10.5650/jos.ess19008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kei Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama
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5
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Plasma Phosphatidylethanolamine and Triacylglycerol Fatty Acid Concentrations are Altered in Major Depressive Disorder Patients with Seasonal Pattern. Lipids 2017; 52:559-571. [PMID: 28439746 DOI: 10.1007/s11745-017-4254-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/10/2017] [Indexed: 12/31/2022]
Abstract
Disturbances in peripheral and brain lipid metabolism, including the omega-3 fatty acid docosahexaenoic acid (DHA), have been reported in major depressive disorder (MDD). However, these changes have yet to be confirmed in MDD with seasonal pattern (MDD-s), a subtype of recurrent MDD. The present exploratory study quantified plasma plasmalogen and diacyl-phospholipid species, and fatty acids within total phospholipids, cholesteryl esters, triacylglycerols and free fatty acids in non-medicated MDD-s participants (n = 9) during euthymia in summer or fall, and during depression in winter in order to screen for potential high sensitivity lipid biomarkers. Triacylglycerol alpha-linolenic acid concentration was significantly decreased, and myristoleic acid concentration was significantly increased, during winter depression compared to summer-fall euthymia. 1-stearyl-2-docosahexaenoyl-sn-glycero-3-phosphoethanolamine, a diacyl-phospholipid containing stearic acid and DHA, was significantly decreased in winter depression. Concentrations of cholesteryl ester oleic acid and several polyunsaturated fatty acids between summer/fall and winter increased in proportion to the increase in depressive symptoms. The observed changes in lipid metabolic pathways in winter-type MDD-s offer new promise for lipid biomarker development.
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Tsuchimine S, Kaneda A, Yasui-Furukori N. Serum x03C9;-3 and x03C9;-6 Fatty Acids Are Not Associated with Personality Traits in Healthy Japanese Young People. Neuropsychobiology 2017; 73:249-53. [PMID: 27388608 DOI: 10.1159/000446920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 05/18/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Recent studies have reported that polyunsaturated fatty acids (PUFAs) are associated with mood and behaviors including depression and suicide risk. The aim of this study was to examine the relationship between PUFAs and personality traits in healthy subjects. METHODS A total of 279 subjects completed the Temperament and Character Inventory and Beck Depression Inventory. Serum levels of the PUFAs eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), the x03C9;-6 fatty acid arachidonic acid (AA), and dihomo-x03B3;-linolenic acid were measured. RESULTS Pearson's correlation analysis showed a positive correlation between DHA and cooperativeness scores. In the multiple regression analysis, harm avoidance scores were positively associated with AA, and a negative association was found between the EPA/AA ratio and reward dependence scores. However, these associations were nonsignificant after a Bonferroni correction. CONCLUSION The results of the present study suggest that the blood levels of PUFAs are not likely to be associated with personality traits.
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Affiliation(s)
- Shoko Tsuchimine
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
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Parekh A, Smeeth D, Milner Y, Thure S. The Role of Lipid Biomarkers in Major Depression. Healthcare (Basel) 2017; 5:healthcare5010005. [PMID: 28165367 PMCID: PMC5371911 DOI: 10.3390/healthcare5010005] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 01/20/2017] [Accepted: 01/23/2017] [Indexed: 12/11/2022] Open
Abstract
In the UK, the lifetime-documented prevalence of major depressive disorder (MDD) is currently 10%. Despite its increasing prevalence and devastating impact on quality of life, the pathophysiological mechanisms underpinning MDD remain to be fully elucidated. Current theories of neurobiological components remain incomplete and protein-centric, rendering pharmacological treatment options suboptimal. In this review, we highlight the pivotal role of lipids in intra- and inter-neuronal functioning, emphasising the potential use of lipids as biomarkers for MDD. The latter has significant implications for improving our understanding of MDD at the cellular and circuit level. There is particular focus on cholesterol (high and low density lipoprotein), omega-3, and omega-6 polyunsaturated fatty acids due to established evidence in the literature of a link between atherosclerotic disease and major depression. We argue that there is significant potential scope for the use of such peripheral biomarkers in the diagnosis, stratification and treatment of MDD.
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Affiliation(s)
- Amy Parekh
- Basic and Clinical Neuroscience, Institute of Psychology, Psychiatry and Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK.
| | - Demelza Smeeth
- Basic and Clinical Neuroscience, Institute of Psychology, Psychiatry and Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK.
| | - Yasmin Milner
- Basic and Clinical Neuroscience, Institute of Psychology, Psychiatry and Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK.
| | - Sandrine Thure
- Basic and Clinical Neuroscience, Institute of Psychology, Psychiatry and Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK.
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8
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Affiliation(s)
- John Corbett
- Editorial Representative Forum on Mental Retardation
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9
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Decreased serum levels of polyunsaturated fatty acids and folate, but not brain-derived neurotrophic factor, in childhood and adolescent females with depression. Psychiatry Res 2015; 225:187-190. [PMID: 25466229 DOI: 10.1016/j.psychres.2014.11.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 11/05/2014] [Accepted: 11/08/2014] [Indexed: 02/05/2023]
Abstract
Evidence from observational studies suggests that there is an association among depression and brain-derived neurotrophic factor (BDNF), polyunsaturated fatty acids (PUFAs), and folate; however, this association has yet to be examined in childhood and adolescent depression. The objective was to determine whether the BDNF, PUFAs, and folate in serum differ between first-episode childhood and adolescent depressed patients and healthy controls. We measured the serum levels of BDNF, PUFAs, and folate of cases admitted to the hospital for depression (n=24) and compared it to that of controls (n=26). Subjects and their parents were informed about the nature and the purpose of this study, and a consent form was signed by parents. The ethics committee of Hirosaki University Graduate School of Medicine approved the study protocol. There were significant differences in the docosahexanoic acid (DHA), arachidonic acid (AA), and folate levels between cases and controls. Serum levels of DHA, AA, and folate levels in the patients group were statistically lower than those in the control group, while serum levels of BDNF were not different between cases and controls. These results are in line with findings of previous studies involving adult and elderly subjects, demonstrating lower levels of PUFAs and folate in patients with depression than healthy controls. However, further studies using larger sample size are warranted.
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10
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A meta-analytic review of polyunsaturated fatty acid compositions in patients with depression. Biol Psychiatry 2010; 68:140-7. [PMID: 20452573 DOI: 10.1016/j.biopsych.2010.03.018] [Citation(s) in RCA: 359] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Revised: 03/09/2010] [Accepted: 03/10/2010] [Indexed: 01/21/2023]
Abstract
BACKGROUND On the basis of evidence from studies showing the antidepressant effects of omega-3 polyunsaturated fatty acids and the inverse relation between fish consumption and the prevalence of depression, the phospholipid hypothesis seems promising in ascertaining the etiology and treatment of depression. Although several studies have shown lower levels of omega-3 (n-3) polyunsaturated fatty acids in depressive patients, the results of individual polyunsaturated fatty acids, including docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and the omega-6 (n-6) polyunsaturated fatty acid arachidonic acid (AA), were inconsistent. METHODS We conducted the meta-analyses of 14 studies comparing the levels of polyunsaturated fatty acids between depressive patients and control subjects. The effect size of each study was synthesized by using a random effects model. RESULTS Compared with control subjects, the levels of EPA, DHA, and total n-3 polyunsaturated fatty acids were significantly lower in depressive patients. There was no significant change in AA or total n-6 polyunsaturated fatty acids. CONCLUSIONS The results showed lower levels of EPA, DHA, and total n-3 polyunsaturated fatty acids in patients with depression, thus implying that n-3 polyunsaturated fatty acids play a role in the pathogenesis of depression. Our findings provide further support to the phospholipid hypothesis of depression and a rationale for using n-3 polyunsaturated fatty acids as an alternative treatment for depression. With these results, future studies examining specific roles of DHA and EPA in different clusters of depressive symptoms are warranted.
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11
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McNamara RK. Evaluation of docosahexaenoic acid deficiency as a preventable risk factor for recurrent affective disorders: current status, future directions, and dietary recommendations. Prostaglandins Leukot Essent Fatty Acids 2009; 81:223-31. [PMID: 19515544 DOI: 10.1016/j.plefa.2009.05.017] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Major recurrent affective disorders, including major depressive disorder (MDD) and bipolar disorder, represent a growing public health crisis in the United States. Evidence from cross-national and cross-sectional epidemiological surveys, comparative peripheral and central composition studies, and placebo-controlled intervention trials suggest that n-3 fatty acid deficiency may contribute to the pathoaetiology of affective disorders. These data are reviewed with the objective of estimating a daily docosahexaenoic acid (DHA, 22:6n-3) intake value that is projected to be efficacious in mitigating vulnerability. It is proposed that daily DHA intake sufficient to increase erythrocyte DHA composition to a level found in healthy subjects from Japan (7%), where the lifetime prevalence rates of MDD and bipolar disorder are several fold lower than the US, represents an appropriate target. To achieve this target, preliminary DHA intervention trials indicate that a daily dose of 400-700 mg/d in children and 700-1000 mg/d in adults would be required. Based on the results of placebo-controlled intervention trials, a higher daily DHA dose in the order of 1000-1500 mg/d in a 2:1 eicosapentaenoic acid (EPA, 20:5n-3):DHA ratio may be optimal for the treatment of established affective disorders. These recommendations are intended to guide future dose-ranging placebo-controlled DHA intervention trials in patients with established affective disorders, as well as in asymptomatic subjects at elevated risk for developing affective disorders. Such early intervention studies are currently feasible and will ultimately be required to definitively evaluate whether DHA is a required nutrient for the prevention of affective disorders.
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Affiliation(s)
- Robert K McNamara
- Department of Psychiatry, Division of Bipolar Disorders Research, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
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Is there a role for n-3 long-chain polyunsaturated fatty acids in the regulation of mood and behaviour? A review of the evidence to date from epidemiological studies, clinical studies and intervention trials. Nutr Res Rev 2009; 21:13-41. [PMID: 19079852 DOI: 10.1017/s0954422408998620] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Selected biochemical evidence suggests a potential role for n-3 long-chain PUFA (n-3PUFA) in the regulation of mood and behaviour. The present paper reviews the relevant evidence, to date, from epidemiological studies, clinical studies and intervention trials. Most evidence is available investigating a role for n-3PUFA in depression, depressive illness and suicidal behaviour, but work is also available on anxiety and anxiety-related disorders, fatigue and fatigue-related disorders, aggression, hostility and anti-social behaviour, inattention, impulsivity and attention deficit hyperactivity disorder and schizophrenic disorders. For all these aspects of mood and behaviour, the evidence available is currently limited and highly inconsistent, both in terms of study methodology and study findings. There is a clear need for further work in this area.
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Long-chain omega-3 polyunsaturated fatty acids in the blood of children and adolescents with juvenile bipolar disorder. Lipids 2008; 43:1031-8. [PMID: 18781353 DOI: 10.1007/s11745-008-3224-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Accepted: 08/05/2008] [Indexed: 10/21/2022]
Abstract
Reduced long-chain omega-3 polyunsaturated fatty acids (LCn-3PUFA), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have been reported in adult patients suffering from depression and bipolar disorder (BD). LCn-3PUFA status has not previously been examined in children and adolescents with BD compared with healthy controls. Fifteen children and adolescents (9-18 years, M +/- SD = 14.4 +/- 3.48) diagnosed with juvenile bipolar disorder (JBD) and fifteen healthy age and sex-matched controls were assessed for dietary intake and fasting red blood cell (RBC) membrane concentrations of LCn-3PUFA. Fatty acid concentrations were compared between participants diagnosed with JBD and controls after controlling for dietary intake. RBC membrane concentrations of EPA and DHA were not significantly lower in participants diagnosed with JBD compared with healthy controls (M +/- sem EPA = 3.37 +/- 0.26 vs. 3.69 +/- 0.27 microg/mL, P = 0.458; M +/- sem DHA = 22.08 +/- 2.23 vs. 24.61 +/- 2.38 microg/mL, P = 0.528) after controlling for intake. Red blood cell DHA was negatively (r = -0.55; P = 0.044) related to clinician ratings of depression. Although lower RBC concentrations of LCn-3PUFA were explained by lower intakes in the current study, previous evidence has linked reduced LCn-3PUFA to the aetiology of BD. As RBC DHA was also negatively related to symptoms of depression, a randomised placebo-controlled study examining supplementation with LCn-3PUFA as an adjunct to standard pharmacotherapy appears warranted in this patient population.
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Appleton KM, Gunnell D, Peters TJ, Ness AR, Kessler D, Rogers PJ. No clear evidence of an association between plasma concentrations of n-3 long-chain polyunsaturated fatty acids and depressed mood in a non-clinical population. Prostaglandins Leukot Essent Fatty Acids 2008; 78:337-42. [PMID: 18565746 DOI: 10.1016/j.plefa.2008.04.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Revised: 04/14/2008] [Accepted: 04/30/2008] [Indexed: 11/19/2022]
Abstract
Previous research suggests that low n-3 long-chain polyunsaturated fatty acid (n-3PUFA) status is associated with higher levels of depression in clinical populations. This analysis aimed to investigate the relationship between depressed mood and n-3PUFA status in a non-clinical population. The analysis was conducted on data collected as part of a large randomized controlled trial investigating the impact of n-3PUFA supplementation on depressed mood in a community-based population. On entry into the trial, data on depressed mood were collected using the Depression, Anxiety and Stress Scales (DASS) and the Beck Depression Inventory (BDI). Plasma concentrations of various n-3PUFAs and n-6 long-chain polyunsaturated fatty acids (n-6PUFAs) were obtained from fasting venous blood samples, and various demographics were also measured. Using regression, there was no evidence of an association between either measure of depressed mood and any of the measures of n-3PUFA status or of n-6PUFA:n-3PUFA ratios. Clear associations were also not found when demographic factors were included in the analyses. These findings suggest that n-3PUFAs may not have a role in the aetiology of minor depression. This is also consistent with the results of other studies that have not demonstrated an association between depressed mood and n-3PUFA status in non-clinical populations and epidemiological studies that have not demonstrated an association between depressed mood and n-3PUFA intake in these populations.
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Affiliation(s)
- K M Appleton
- School of Psychology, Queen's University, Belfast, 18-30 Malone Road, Belfast BT9 5BP, UK.
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Féart C, Peuchant E, Letenneur L, Samieri C, Montagnier D, Fourrier-Reglat A, Barberger-Gateau P. Plasma eicosapentaenoic acid is inversely associated with severity of depressive symptomatology in the elderly: data from the Bordeaux sample of the Three-City Study. Am J Clin Nutr 2008; 87:1156-62. [PMID: 18469234 DOI: 10.1093/ajcn/87.5.1156] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Depressive symptoms are commonly observed in elderly people, and nutritional factors such as polyunsaturated fatty acids (PUFAs) have been proposed as potential protective determinants of depressive disorders. OBJECTIVE The objective was to analyze the relation between plasma fatty acids and severity of depressive symptomatology (DS) in French elderly community dwellers. DESIGN The study population (mean age: 74.6 y) consisted of 1390 subjects from Bordeaux (France) included in the Three-City Study cohort. DS was evaluated by using the Center for Epidemiologic Studies Depression scale. The use of antidepressant drugs was recorded. The proportion of each plasma fatty acid was determined. Cross-sectional analysis of the association between plasma fatty acids and severity of DS was performed by multilinear regression. RESULTS Compared with control subjects, subjects with DS were older, were more often women, were more often widowed or single, were of lower income, were receiving antidepressant treatment more frequently, had a lower incidence of hypercholesterolemia, and had lower Mini-Mental State Examination scores (mean: -1.1 point; P < 0.0001). Plasma eicosapentaenoic acid (EPA) was lower in the subjects with DS than in the control subjects (0.85% compared with 1.01%; P = 0.001). There were no significant differences in any other fatty acid. When adjusted for potential confounders, such as sociodemographic characteristics and health indicators, plasma EPA was inversely associated with the severity of DS (beta = -0.170, P = 0.040) in subjects taking antidepressants. CONCLUSION Higher plasma EPA was associated with a lower severity of DS in elderly subjects, especially those taking antidepressants.
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Affiliation(s)
- Catherine Féart
- INSERM U593, Equipe Epidémiologie de la Nutrition et des Comportements Alimentaires, Bordeaux, France.
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Sanchez-Villegas A, Henríquez P, Figueiras A, Ortuño F, Lahortiga F, Martínez-González MA. Long chain omega-3 fatty acids intake, fish consumption and mental disorders in the SUN cohort study. Eur J Nutr 2007; 46:337-46. [PMID: 17717628 DOI: 10.1007/s00394-007-0671-x] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2006] [Accepted: 07/03/2007] [Indexed: 12/12/2022]
Abstract
BACKGROUND Very long chain omega-3 fatty acids (w-3 PUFA) intake and fish consumption have been suggested as protective factors against neuropsychiatric disorders but there is scarcity of large cohort studies assessing this association. AIM OF THE STUDY To assess the association between w-3-PUFA intake and fish consumption and mental disorders. METHODS A prospective cohort study was performed in 7,903 participants. W-3 PUFA intake and fish consumption were ascertained through a validated semi-quantitative food frequency questionnaire. The outcomes after 2 years of follow-up were: (1) Incident mental disorder (depression, anxiety, or stress), (2) incident depression, and (3) incident anxiety. Logistic regression models and generalized additive models were fit to assess the relationship between w-3 PUFA intake or fish consumption and the incidence of these outcomes. Odds ratios (OR) and their 95% confidence intervals (CI) were calculated. RESULTS 173 cases of depression, 335 cases of anxiety, and 4 cases of stress were observed during 2-year follow-up. ORs (95% CI) of mental disorder for successive quintiles of energy-adjusted w-3 PUFA intake were 1 (reference), 0.72 (0.52-0.99), 0.79 (0.58-1.08), 0.65 (0.47-0.90), and 1.04 (0.78-1.40). Subjects with a moderate consumption of fish (third and fourth quintiles of consumption: median of each quintile 83.3 and 112 g/day, respectively) had a relative risk reduction higher than 30%. CONCLUSIONS A potential benefit of w-3 PUFA intake on total mental disorders is suggested, although no linear trend was apparent.
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Affiliation(s)
- Almudena Sanchez-Villegas
- Department of Clinical Sciences, University of Las Palmas de Gran Canaria, P.O. Box 550, 35080 Las Palmas de Gran Canaria, Spain.
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Kobayakawa M, Yamawaki S, Hamazaki K, Akechi T, Inagaki M, Uchitomi Y. Levels of omega-3 fatty acid in serum phospholipids and depression in patients with lung cancer. Br J Cancer 2006; 93:1329-33. [PMID: 16306875 PMCID: PMC2361538 DOI: 10.1038/sj.bjc.6602877] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Previous studies suggested that omega-3 fatty acids (FAs) have therapeutic effects against depression, but there is no evidence in the oncological setting. Our preliminary study reported the association between lower omega-3 FA intake and occurrence of depression in lung cancer patients. To explore the association further, the present study examined whether depression was associated with lower levels of omega-3 FAs in serum phospholipids. A total of 717 subjects in the Lung Cancer Database Project were divided into three groups by two cutoff points of the Hospital Anxiety and Depression Scale depression subscale (HADS-D). In all, 81 subjects of the nondepression and minor depression groups (HADS-D<5 and 5⩽HADS-D⩽10, respectively) were selected to match with 81 subjects of the major depression group (HADS-D>10) for age, gender, clinical stage, and performance status. Fatty acids were assayed by gas chromatography and compared among the three matched groups. There were no differences between the major depression group and nondepression group in any FAs. The minor depression group had higher mean levels of docosahexaenoic acid (mean±s.d. (%), nondepression: 7.40±1.54; minor depression: 7.90±1.40; major depression: 7.25±1.52, P=0.017). These results suggested that serum FAs are associated with minor, but not major, depression in lung cancer patients.
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Affiliation(s)
- M Kobayakawa
- Psycho-Oncology Division, National Cancer Center Research Institute East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
- Psychiatry Division, Graduate School of Biomedical Science, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima-City, Hiroshima 734-8551, Japan
| | - S Yamawaki
- Psychiatry Division, Graduate School of Biomedical Science, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima-City, Hiroshima 734-8551, Japan
| | - K Hamazaki
- Division of Clinical Application, Department of Clinical Sciences, Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama-City, Toyama 930-0194, Japan
| | - T Akechi
- Psycho-Oncology Division, National Cancer Center Research Institute East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
- Department of Psychiatry, Nagoya City University Medical School, 1 Kawasumi, Mizuho-Cho, Mizuho-Ku, Nagoya-City, Aichi 467-8601, Japan
- Psychiatry Division, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
| | - M Inagaki
- Psycho-Oncology Division, National Cancer Center Research Institute East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
- Psychiatry Division, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
| | - Y Uchitomi
- Psycho-Oncology Division, National Cancer Center Research Institute East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
- Psychiatry Division, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan
- Psycho-Oncology Division, National Cancer Center Research Institute East, 6-5-1 Kashiwanoha, Kashiwa-City, Chiba 277-8577, Japan; E-mail:
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Sontrop J, Campbell MK. Omega-3 polyunsaturated fatty acids and depression: a review of the evidence and a methodological critique. Prev Med 2006; 42:4-13. [PMID: 16337677 DOI: 10.1016/j.ypmed.2005.11.005] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2004] [Revised: 10/29/2005] [Accepted: 11/05/2005] [Indexed: 10/25/2022]
Abstract
Several lines of evidence indicate an association between omega-3 polyunsaturated fatty acids (PUFAs) and depression. The purpose of this review was to evaluate the evidence to date within the context of the study design and methodology used. In case-control and cohort studies, concentrations of omega-3 PUFAs were lower in participants with unipolar and postpartum depression. Fish are the major dietary source of omega-3 PUFAs, and infrequent fish consumption is associated with depression in epidemiological studies. While these findings do not appear to be the result of confounding, in some studies failure to detect confounding may be due to a lack of power or incomplete control. In four of seven double-blind randomized controlled trials, depression was significantly improved upon treatment with at least 1 g/day of eicosapentaenoic acid, an omega-3 PUFA. While clinical significance was demonstrated, preservation of blinding may be a limitation in this area of research. It remains unclear whether omega-3 supplementation is effective independently of antidepressant treatment, for depressed patients in general or only those with abnormally low concentrations of these PUFAs. The relationship between omega-3 PUFAs and depression is biologically plausible and is consistent across study designs, study groups, and diverse populations, which increases the likelihood of a causal relationship.
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Affiliation(s)
- Jessica Sontrop
- Department of Epidemiology and Biostatistics, Kresge Bldg., K201, The University of Western Ontario, London, Ontario, Canada N6A 5C1.
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Logan AC. Omega-3 fatty acids and major depression: a primer for the mental health professional. Lipids Health Dis 2004; 3:25. [PMID: 15535884 PMCID: PMC533861 DOI: 10.1186/1476-511x-3-25] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2004] [Accepted: 11/09/2004] [Indexed: 12/16/2022] Open
Abstract
Omega-3 fatty acids play a critical role in the development and function of the central nervous system. Emerging research is establishing an association between omega-3 fatty acids (alpha-linolenic, eicosapentaenoic, docosahexaenoic) and major depressive disorder. Evidence from epidemiological, laboratory and clinical studies suggest that dietary lipids and other associated nutritional factors may influence vulnerability and outcome in depressive disorders. Research in this area is growing at a rapid pace. The goal of this report is to integrate various branches of research in order to update mental health professionals.
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Affiliation(s)
- Alan C Logan
- Integrative Care Centre of Toronto, 3600 Ellesmere Road, Unit 4, Toronto, ON M1C 4Y8, Canada.
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20
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Mamalakis G, Kiriakakis M, Tsibinos G, Kafatos A. Depression and adipose polyunsaturated fatty acids in an adolescent group. Prostaglandins Leukot Essent Fatty Acids 2004; 71:289-94. [PMID: 15380815 DOI: 10.1016/j.plefa.2004.04.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2004] [Accepted: 04/16/2004] [Indexed: 11/20/2022]
Abstract
The purpose of the present study was to investigate the relation between adipose tissue polyunsaturated fatty acids, an index of long-term or habitual fatty acid dietary intake and depression. The sample consisted of 90 adolescents from the island of Crete. There were 54 girls and 36 boys, aged 13-18. The mean age was 15.2 years. Subjects were examined by the Preventive Medicine and Nutrition Clinic of the University of Crete. Depression was assessed through the use of the Beck Depression Inventory (BDI) and the Center for Epidemiologic Studies Depression Scale (CES-D). Unlike other studies, there were no significant relations between adipose tissue n-3 or n-6 polyunsaturated fatty acids and depression. BDI correlated positively with adipose tissue C20:3n-6/C18:3n-6 ratio, while CES-D correlated positively with adipose tissue (C20:3n-6+C22:5n-3)/(C18:3n-6+C20:5n-3) ratio. Depressed subjects (BDI>16, CES-D>16) had significantly elevated adipose tissue C20:3n-6/C18:3n-6 and (C20:3n-6+C22:5n-3)/(C18:3n-6+C20:5n-3) ratios, than non-depressed subjects. The observed positive relation between depression and the particular fatty acid ratios, in the present study, appears to indicate increasing activity of elongases, the enzymes responsible for elongating polyunsaturated fatty acids into their longer-chain derivatives, with increasing depression. This is the first literature report of a possible relation between elongases and depression. The observed relation may stem from a possible over-expression of the HELO1 (ELOVL5) gene, the gene encoding a protein responsible for elongating long-chain polyunsaturated fatty acids, in the adipose tissue of depressed adolescents.
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Affiliation(s)
- George Mamalakis
- Department of Social and Preventive Medicine, University of Crete, Iraklion, Crete, Zambeliou 36, Rethymnon, Greece.
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21
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Mamalakis G, Kiriakakis M, Tsibinos G, Kafatos A. Depression and adipose polyunsaturated fatty acids in the survivors of the Seven Countries Study population of Crete. Prostaglandins Leukot Essent Fatty Acids 2004; 70:495-501. [PMID: 15120712 DOI: 10.1016/j.plefa.2003.10.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2003] [Accepted: 10/09/2003] [Indexed: 11/22/2022]
Abstract
The purpose of the present study was to investigate the relation between adipose tissue polyunsaturated fatty acids, an index of long-term or habitual fatty acid dietary intake and depression. The sample consisted of 150 elderly males from the island of Crete. The subjects were survivors of the Greek Seven Countries Study group. The mean age was 84 years. The number of subjects with complete data on all variables studied was 63. Subjects were examined by the Preventive Medicine and Nutrition Clinic of the University of Crete. Depression was assessed through the use of the short form of the Geriatric Depression Scale (GDS-15). Depression correlated negatively with adipose tissue alpha-linolenic acid (C18:3n-3). Depressed subjects had significantly reduced (-10.5%) adipose tissue C18:3n-3 levels than non-depressed subjects. The observed negative relation between adipose tissue C18:3n-3 and depression, in the present study, appears to indicate increasing long-term dietary C18:3n-3 intakes with decreasing depression. This agrees with findings of other studies indicating an inverse relation between depression and consumption of fish and n-3 polyunsaturated fatty acids. This is the first literature report of a relation between adipose tissue C18:3n-3 and depression. Furthermore, this is the first report of a relation between adipose PUFA and depression in an elderly sample. Depression has been reported to be associated with elevated cytokines, such as, IL-1, IL-2, IL-6, INF-gamma and INF-alpha. Fish oil and omega-3 fatty acids, on the other hand, have been reported to inhibit cytokine production. The observed negative relation between adipose C18:3n-3 and depression, therefore, may stem from the inhibiting effect of C18:3n-3 or its long-chain metabolites on cytokine synthesis.
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Affiliation(s)
- George Mamalakis
- Department of Social and Preventive Medicine, School of Medicine, University of Crete, P.O. Box 2208, Iraklion, Crete 71003, Greece.
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Frasure-Smith N, Lespérance F, Julien P. Major depression is associated with lower omega-3 fatty acid levels in patients with recent acute coronary syndromes. Biol Psychiatry 2004; 55:891-6. [PMID: 15110732 DOI: 10.1016/j.biopsych.2004.01.021] [Citation(s) in RCA: 161] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2003] [Revised: 01/07/2004] [Accepted: 01/13/2004] [Indexed: 11/15/2022]
Abstract
BACKGROUND Polyunsaturated fatty acids (PUFAs) are intrinsic cell membrane components and closely involved in neurotransmission and receptor function. Lower omega-3 levels are associated with increased risk of coronary artery disease (CAD), increases in cardiac events in CAD patients, and depression. We sought to examine relationships between depression and serum levels of omega-3 and omega-6 PUFAs in patients recovering from acute coronary syndromes (ACS). METHODS We carried out a case-control study of serum PUFA levels and current major depression in 54 age- and sex-matched pairs approximately 2 months following ACS. RESULTS Depressed patients had significantly lower concentrations of total omega-3 and docosahexaenoic acid (DHA), and higher ratios of arachidonic acid (AA) to DHA, AA to eicosapentaenoic acid (EPA), and n-3 to n-6 than controls. There were no baseline differences in any potential risk or protective factors for depression. CONCLUSIONS Results are consistent with previous reports in depressed patients without CAD, and with literature concerning omega-3 levels and risk of CAD events. Dietary, genetic, and hormonal factors may all play a role in both depression and CAD. Both prospective studies and randomized trials are needed to help clarify the interrelationships.
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Haag M. Essential fatty acids and the brain. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2003; 48:195-203. [PMID: 12728744 DOI: 10.1177/070674370304800308] [Citation(s) in RCA: 281] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To review the role of essential fatty acids in brain membrane function and in the genesis of psychiatric disease. METHOD Medline databases were searched for published articles with links among the following key words: essential fatty acids, omega-3 fatty acids, docosahexanoic acid, eicosapentanoic acid, arachidonic acid, neurotransmission, phospholipase A2, depression, schizophrenia, mental performance, attention-deficit hyperactivity disorder, and Alzheimer's disease. Biochemistry textbooks were consulted on the role of fatty acids in membrane function, neurotransmission, and eicosanoid formation. The 3-dimensional structures of fatty acids were obtained from the Web site of the Biochemistry Department, University of Arizona (2001). RESULTS The fatty acid composition of neuronal cell membrane phospholipids reflects their intake in the diet. The degree of a fatty acid's desaturation determines its 3-dimensional structure and, thus, membrane fluidity and function. The ratio between omega-3 and omega-6 polyunsaturated fatty acids (PUFAs), in particular, influences various aspects of serotoninergic and catecholaminergic neurotransmission, as shown by studies in animal models. Phospholipase A2 (PLA2) hydrolyzes fatty acids from membrane phospholipids: liberated omega-6 PUFAs are metabolized to prostaglandins with a higher inflammatory potential, compared with those generated from the omega-3 family. Thus the activity of PLA2 coupled with membrane fatty acid composition may play a central role in the development of neuronal dysfunction. Intervention trials in human subjects show that omega-3 fatty acids have possible positive effects in the treatment of various psychiatric disorders, but more data are needed to make conclusive directives in this regard. CONCLUSION The ratio of membrane omega-3 to omega-6 PUFAs can be modulated by dietary intake. This ratio influences neurotransmission and prostaglandin formation, processes that are vital in the maintenance of normal brain function.
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Affiliation(s)
- Marianne Haag
- Department of Physiology, University of Pretoria, PO Box 2034, Pretoria 0001, South Africa.
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24
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Mamalakis G, Tornaritis M, Kafatos A. Depression and adipose essential polyunsaturated fatty acids. Prostaglandins Leukot Essent Fatty Acids 2002; 67:311-8. [PMID: 12445491 DOI: 10.1054/plef.2002.0435] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The objective of the present study was to investigate the relation between adipose tissue polyunsaturated fatty acids, an index of long-term or habitual fatty acid dietary intake, and depression. The sample consisted of 247 healthy adults (146 males, 101 females) from the island of Crete. The number of subjects with complete data on all variables studied was 139. Subjects were examined at the Preventive Medicine and Nutrition Clinic of the University of Crete. Depression was assessed through the use of the Zung Self-rating Depression Scale. Mildly depressed subjects had significantly reduced (-34.6%) adipose tissue docosahexaenoic acid (DHA) levels than non-depressed subjects. Multiple linear regression analysis indicated that depression related negatively to adipose tissue DHA levels. In line with the findings of other studies, the observed negative relation between adipose tissue DHA and depression, in the present study, appears to indicate increasing long-term dietary DHA intakes with decreasing depression. This is the first literature report of a relation between adipose tissue DHA and depression. Depression has been reported to be associated with increased cytokine production, such as IL-1, IL-2, IL-6, INF-gamma and INF-alpha. On the other hand, fish oil and omega-3 fatty acids have been reported to inhibit cytokine synthesis. The observed negative relation between adipose DHA and depression, therefore, may stem from the inhibiting effect of DHA on cytokine synthesis.
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Affiliation(s)
- G Mamalakis
- Department of Social and Preventive Medicine, University of Crete, Iraklion, Greece.
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25
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Chapter 5 Omega-3 fats in depressive disorders and violence: the context of evolution and cardiovascular health. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0167-7306(02)35034-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Abstract
Studies have both supported and contested the proposition that lowering plasma cholesterol by diet and medications contributes to depression. Evidence suggests that an imbalance in the ratio of the essential fatty acids (EFAs), namely the n-6 and n-3 fatty acids, and/or a deficiency in n-3 fatty acids, may be responsible for the heightened depressive symptoms associated with low plasma cholesterol. These relationships may explain the inconsistent findings in trials of cholesterol-lowering interventions and depression. Dieting behaviors have similarly been associated with alterations in mood state. This review discusses studies of EFAs and depression and explores the involvement of dieting-related psychological factors as potential confounders.
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Affiliation(s)
- K A Bruinsma
- University of Arizona College of Public Health, Tucson 85724, USA
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27
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Horrobin DF, Bennett CN. Depression and bipolar disorder: relationships to impaired fatty acid and phospholipid metabolism and to diabetes, cardiovascular disease, immunological abnormalities, cancer, ageing and osteoporosis. Possible candidate genes. Prostaglandins Leukot Essent Fatty Acids 1999; 60:217-34. [PMID: 10397403 DOI: 10.1054/plef.1999.0037] [Citation(s) in RCA: 174] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Depression and bipolar disorder are two of the commonest illnesses in the developed world. While some patients can be treated effectively with available drugs, many do not respond, especially in the depression related to bipolar disorder. Depression is associated with diabetes, cardiovascular disease, immunological abnormalities, multiple sclerosis, cancer, osteoporosis and ageing: in each case depressed individuals have a worse outcome than non-depressed individuals. In all of these conditions there is now evidence of impaired phospholipid metabolism and impaired fatty acid-related signal transduction processes. Impaired fatty acid and phospholipid metabolism may be a primary cause of depression in many patients and may explain the interactions with other diseases. Several novel gene candidates for involvement in depression and bipolar disorder are proposed.
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Peet M, Murphy B, Shay J, Horrobin D. Depletion of omega-3 fatty acid levels in red blood cell membranes of depressive patients. Biol Psychiatry 1998; 43:315-9. [PMID: 9513745 DOI: 10.1016/s0006-3223(97)00206-0] [Citation(s) in RCA: 365] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND It has been hypothesized that depletion of cell membrane n3 polyunsaturated fatty acids (PUFA), particularly docosahexanoic acid (DHA), may be of etiological importance in depression. METHODS We measured the fatty acid composition of phospholipid in cell membranes from red blood cells (RBC) of 15 depressive patients and 15 healthy control subjects. RESULTS Depressive patients showed significant depletions of total n3 PUFA and particularly DHA. Incubation of RBC from control subjects with hydrogen peroxide abolished all significant differences between patients and controls. CONCLUSIONS These findings suggest that RBC membranes in depressive patients show evidence of oxidative damage. Possible interpretations, and implications for the etiology and treatment of depression, are discussed.
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Affiliation(s)
- M Peet
- University Department of Psychiatry, Sheffield, United Kingdom
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29
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Maes M, Smith R, Christophe A, Cosyns P, Desnyder R, Meltzer H. Fatty acid composition in major depression: decreased omega 3 fractions in cholesteryl esters and increased C20: 4 omega 6/C20:5 omega 3 ratio in cholesteryl esters and phospholipids. J Affect Disord 1996; 38:35-46. [PMID: 8735157 DOI: 10.1016/0165-0327(95)00092-5] [Citation(s) in RCA: 286] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Recently, there were some reports that major depression may be accompanied by alterations in serum total cholesterol, cholesterol ester and omega 3 essential fatty acid levels and by an increased C20: 4 omega 6/C20: 5 omega 3, i.e., arachidonic acid/eicosapentaenoic, ratio. The present study aimed to examine fatty acid composition of serum cholesteryl esters and phospholipids in 36 major depressed, 14 minor depressed and 24 normal subjects. Individual saturated (e.g., C14:0; C16:0, C18:0) and unsaturated (e.g., C18:1, C18:2, C20:4) fatty acids in phospholipid and cholesteryl ester fractions were assayed and the sums of the percentages of omega 6 and omega 3, saturated, branched chain and odd chain fatty acids, monoenes as well as the ratios omega 6/omega 3 and C20:4 omega 6/C20:5 omega 3 were calculated. Major depressed subjects had significantly higher C20:4 omega 6/C20:5 omega 3 ratio in both serum cholesteryl esters and phospholipids and a significantly increased omega 6/omega 3 ratio in cholesteryl ester fraction than healthy volunteers and minor depressed subjects. Major depressed subjects had significantly lower C18:3 omega 3 in cholesteryl esters than normal controls. Major depressed subjects showed significantly lower total omega 3 polyunsaturated fatty acids in cholesteryl esters and significantly lower C20:5 omega 3 in serum cholesteryl esters and phospholipids than minor depressed subjects and healthy controls. These findings suggest an abnormal intake or metabolism of essential fatty acids in conjunction with decreased formation of cholesteryl esters in major depression.
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Affiliation(s)
- M Maes
- Clinical Research Center, University Department of Psychiatry, Antwerp, Belgium
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30
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Adams PB, Lawson S, Sanigorski A, Sinclair AJ. Arachidonic acid to eicosapentaenoic acid ratio in blood correlates positively with clinical symptoms of depression. Lipids 1996; 31 Suppl:S157-61. [PMID: 8729112 DOI: 10.1007/bf02637069] [Citation(s) in RCA: 265] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In this study of 20 moderately to severely depressed patients, diagnosed using current research diagnostic criteria and excluding known bipolar affective disorder and reactive depression, we investigated relationships between severity of depression and levels and ratios of n-3 and n-6 long-chain polyunsaturated fatty acids (PUFA) in plasma and erythrocyte phospholipids (PL). Severity of depression was measured using the 21-item Hamilton depression rating scale (HRS) and a second linear rating scale (LRS) of severity of depressive symptoms that omitted anxiety symptoms. There was a significant correlation between the ratio of erythrocyte PL arachidonic acid (AA) to eicosapentaenoic acid (EPA) and severity of depression as rated by the HRS (P < 0.05) and the LRS for depression (P < 0.01). There was also a significant negative correlation between erythrocyte EPA and the LRS (P < 0.05). The AA/EPA ratio in plasma PL and the ratio of erythrocyte long-chain (C20 and C22 carbon) n-6 to long-chain n-3 PUFA were also significantly correlated with the LRS (P < 0.05). These findings do not appear to be simply explained by differences in dietary intake of EPA. We cannot determine whether the high ratios of AA/EPA in both plasma and erythrocyte PL are the result of depression or whether tissue PUFA change predate the depressive symptoms. We suggest, however, that our findings provide a basis for studying the effect of the nutritional supplementation of depressed subjects, aimed at reducing the AA/EPA ratio in tissues and severity of depression.
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Affiliation(s)
- P B Adams
- Central Region Mental Health Service, Rockhampton Base Hospital, Queensland, Australia
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Horrobin DF, Manku MS, Morse-Fisher N, Vaddadi KS, Courtney P, Glen AI, Glen E, Spellman M, Bates C. Essential fatty acids in plasma phospholipids in schizophrenics. Biol Psychiatry 1989; 25:562-8. [PMID: 2920191 DOI: 10.1016/0006-3223(89)90216-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Blood samples were taken from schizophrenics and control patients in three different centers. The phospholipids were extracted from plasma and their fatty acid composition analyzed. Similar and consistent differences between schizophrenics and controls were observed at all three centers. The n-6 essential fatty acid levels were significantly reduced, whereas n-3 essential fatty acids were elevated.
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Affiliation(s)
- D F Horrobin
- Efamol Research Institute, Kentville, Nova Scotia, Canada
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