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Yang Q, Han X, Ye M, Jiang T, Wang B, Zhang Z, Li F. Association of genetically predicted 486 blood metabolites on the risk of Alzheimer's disease: a Mendelian randomization study. Front Aging Neurosci 2024; 16:1372605. [PMID: 38681667 PMCID: PMC11047179 DOI: 10.3389/fnagi.2024.1372605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/27/2024] [Indexed: 05/01/2024] Open
Abstract
Background Studies have reported that metabolic disturbance exhibits in patients with Alzheimer's disease (AD). Still, the presence of definitive evidence concerning the genetic effect of metabolites on AD risk remains insufficient. A systematic exploration of the genetic association between blood metabolites and AD would contribute to the identification of new targets for AD screening and prevention. Methods We conducted an exploratory two-sample Mendelian randomization (MR) study aiming to preliminarily identify the potential metabolites involved in AD development. A genome-wide association study (GWAS) involving 7,824 participants provided information on 486 human blood metabolites. Outcome information was obtained from a large-scale GWAS meta-analysis of AD, encompassing 21,982 cases and 41,944 controls of Europeans. The primary two-sample MR analysis utilized the inverse variance weighted (IVW) model while supplementary analyses used Weighted median (WM), MR Egger, Simple mode, and Weighted mode, followed by sensitivity analyses such as the heterogeneity test, horizontal pleiotropy test, and leave-one-out analysis. For the further identification of metabolites, replication and meta-analysis with FinnGen data, steiger test, linkage disequilibrium score regression, confounding analysis, and were conducted for further evaluation. Multivariable MR was performed to assess the direct effect of metabolites on AD. Besides, an extra replication analysis with EADB data was conducted for final evaluation of the most promising findings. Results After rigorous genetic variant selection, IVW, complementary analysis, sensitivity analysis, replication and meta-analysis with the FinnGen data, five metabolites (epiandrosterone sulfate, X-12680, pyruvate, docosapentaenoate, and 1-stearoylglycerophosphocholine) were identified as being genetically associated with AD. MVMR analysis disclosed that genetically predicted these four known metabolites can directly influence AD independently of other metabolites. Only epiandrosterone sulfate and X-12680 remained suggestive significant associations with AD after replication analysis with the EADB data. Conclusion By integrating genomics with metabonomics, this study furnishes evidence substantiating the genetic association of epiandrosterone sulfate and X-12680 with AD. These findings hold significance for the screening, prevention, and treatment strategies for AD.
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Affiliation(s)
- Qiqi Yang
- Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
- The First Clinical Medical School, Anhui University of Chinese Medicine, Hefei, China
| | - Xinyu Han
- The First Clinical Medical School, Anhui University of Chinese Medicine, Hefei, China
| | - Min Ye
- The First Clinical Medical School, Anhui University of Chinese Medicine, Hefei, China
| | - Tianxin Jiang
- Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Baoguo Wang
- Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Zhenfeng Zhang
- Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Fei Li
- Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
- Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, China
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2
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Ebright B, Duro MV, Chen K, Louie S, Yassine HN. Effects of APOE4 on omega-3 brain metabolism across the lifespan. Trends Endocrinol Metab 2024:S1043-2760(24)00065-1. [PMID: 38609814 DOI: 10.1016/j.tem.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 04/14/2024]
Abstract
Omega-3 (n-3) polyunsaturated fatty acids (PUFAs), such as docosahexaenoic acid (DHA), have important roles in human nutrition and brain health by promoting neuronal functions, maintaining inflammatory homeostasis, and providing structural integrity. As Alzheimer's disease (AD) pathology progresses, DHA metabolism in the brain becomes dysregulated, the timing and extent of which may be influenced by the apolipoprotein E ε4 (APOE4) allele. Here, we discuss how maintaining adequate DHA intake early in life may slow the progression to AD dementia in cognitively normal individuals with APOE4, how recent advances in DHA brain imaging could offer insights leading to more personalized preventive strategies, and how alternative strategies targeting PUFA metabolism pathways may be more effective in mitigating disease progression in patients with existing AD dementia.
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Affiliation(s)
- Brandon Ebright
- Department of Clinical Pharmacy, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Marlon V Duro
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Kai Chen
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Stan Louie
- Department of Clinical Pharmacy, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Hussein N Yassine
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
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3
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Cui XY, Jiang S, Wang CC, Yang JY, Zhao YC, Xue CH, Wang YM, Zhang TT. Comparative Analyses of EPA-Phosphatidylcholine, EPA-Lysophosphatidylcholine, and DHA-Lysophosphatidylcholine on DHA and EPA Repletion in n-3 PUFA-Deficient Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13327-13339. [PMID: 36197792 DOI: 10.1021/acs.jafc.2c06462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) play an important role in maintaining the physiological functions of tissues, and the beneficial effects of DHA/EPA in phospholipid forms have been widely reported. Although lysophosphatidylcholine (LPC) is considered to be the preferred form of DHA supplementation for the brain, the kinetics of DHA and EPA recovery and corresponding changes of n-6 docosapentaenoic acid (DPA) and arachidonic acid (AA) levels in different phospholipid molecules and different tissues after administration of EPA in phosphatidylcholine (PC) and LPC forms and DHA in the LPC form are not clear. Here, we measured the total fatty acids in tissues and fatty acid composition of different phospholipid molecules after gavage administration of equal molar amounts of EPA/DHA in mice with n-3 polyunsaturated fatty acid (PUFA) deficiency induced by maternal dietary deprivation of n-3 PUFA during pregnancy and lactation. The results showed that dietary supplementation with EPA-PC, EPA-LPC, and DHA-LPC exhibited different priorities for EPA or DHA accretion and supplementation efficiency curves in different tissues during the developing period. EPA-PC exhibited a more optimal efficacy in DHA and EPA repletion in serum and hepatic total fatty acids. In terms of DHA recovery in the brain, EPA-LPC and DHA-LPC showed great effects. Meanwhile, the DHA level in total fatty acids and major fractions of phospholipids (PC, PE, and PI + PS) in the heart and bone marrow with the supplementation of DHA-LPC displayed a relatively considerable increase compared with that of EPA supplementation groups. The study provides a reference for the time course of DHA or EPA recovery in phospholipid molecular species in different tissues after the supplementation of EPA-PC, EPA-LPC, and DHA-LPC.
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Affiliation(s)
- Xiao-Yu Cui
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Shan Jiang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Cheng-Cheng Wang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Jin-Yue Yang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Ying-Cai Zhao
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Chang-Hu Xue
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
- Laboratory of Marine Drugs & Biological Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, Shandong, P. R. China
| | - Yu-Ming Wang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
- Laboratory of Marine Drugs & Biological Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, Shandong, P. R. China
| | - Tian-Tian Zhang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
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4
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Semenova MG, Antipova AS, Martirosova EI, Chebotarev SA, Palmina NP, Bogdanova NG, Krikunova NI, Zelikina DV, Anokhina MS, Kasparov VV. The relationship between the structure and functionality of essential PUFA delivery systems based on sodium caseinate with phosphatidylcholine liposomes without and with a plant antioxidant: an in vitro and in vivo study. Food Funct 2022; 13:2354-2371. [PMID: 35147140 DOI: 10.1039/d1fo03336k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The aim of this work was to establish the main relationship between the structure and functionality of supramolecular complexes formed by sodium caseinate (SC) with phosphatidylcholine (PC) liposomes filled with fish oil (FO) to an equal mass ratio of n-3 to n-6 polyunsaturated fatty acids (PUFA) in the absence and presence of one of the most effective plant antioxidants, namely the essential oil of clove buds (EOC). The functionality of the supramolecular complexes (SC-PC-FO and SC-PC-FO-EOC) was considered from the point of view of the possibility of their use as effective delivery systems for long-chain n-3 PUFAs (eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids from FO). The laser light scattering method was used in the static, dynamic and electrophoretic modes to characterize the structure and thermodynamic parameters of the supramolecular complexes in an aqueous medium. It was found that the SC-PC-FO and SC-PC-FO-EOC complex particles had the following similar properties: nanosize; a spherical shape; 100% solubility in an aqueous medium (pH 7.0, ionic strength = 0.001 M); a high encapsulating ability of SC (up to 70%) in relation to the studied liposomes; and a high protective ability relative to lipid autooxidation (up to 96% on the 20th day of storage at room temperature in light). In addition, a sequential transformation of both the structural and thermodynamic parameters has been observed for the complex particles under in vitro simulated gastrointestinal (GI) conditions in accordance with the INFOGEST protocol. A greater release of the encapsulated lipids from the enzymatically hydrolyzed complex particles was observed at the small intestine stage compared to their release at the gastric stage. These data were in good agreement with those on the assessment of the bioavailability of the target PUFAs in in vivo experiments based on the chronic intake of aqueous solutions of the complexes (both SC-PC-FO and SC-PC-FO-EOC) by experimental mice for 92 days. Liver lipid profiles of the mice, obtained by gas-liquid chromatography, showed the following: (i) an almost twofold increase in the DHA content as compared with that of the control; (ii) an almost threefold decrease in the mass ratio of arachidonic acid (AA) (C20:4 n-6) to DHA (C22:6 n-3) compared to that of the control due to both a significant decrease in the AA content and a simultaneous pronounced increase in the DHA content; and (iii) an almost twofold decrease in the mass ratio of the total amounts of n-6 to n-3 PUFAs compared to that of the control.
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Affiliation(s)
- Maria G Semenova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Anna S Antipova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Elena I Martirosova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Sergey A Chebotarev
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Nadezhda P Palmina
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Natalya G Bogdanova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Natalya I Krikunova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Daria V Zelikina
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Maria S Anokhina
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
| | - Valery V Kasparov
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Russian Federation.
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The Impact of Medium Chain and Polyunsaturated ω-3-Fatty Acids on Amyloid-β Deposition, Oxidative Stress and Metabolic Dysfunction Associated with Alzheimer's Disease. Antioxidants (Basel) 2021; 10:antiox10121991. [PMID: 34943094 PMCID: PMC8698946 DOI: 10.3390/antiox10121991] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/09/2021] [Accepted: 12/12/2021] [Indexed: 01/22/2023] Open
Abstract
Alzheimer’s disease (AD), the most common cause of dementia in the elderly population, is closely linked to a dysregulated cerebral lipid homeostasis and particular changes in brain fatty acid (FA) composition. The abnormal extracellular accumulation and deposition of the peptide amyloid-β (Aβ) is considered as an early toxic event in AD pathogenesis, which initiates a series of events leading to neuronal dysfunction and death. These include the induction of neuroinflammation and oxidative stress, the disruption of calcium homeostasis and membrane integrity, an impairment of cerebral energy metabolism, as well as synaptic and mitochondrial dysfunction. Dietary medium chain fatty acids (MCFAs) and polyunsaturated ω-3-fatty acids (ω-3-PUFAs) seem to be valuable for disease modification. Both classes of FAs have neuronal health-promoting and cognition-enhancing properties and might be of benefit for patients suffering from mild cognitive impairment (MCI) and AD. This review summarizes the current knowledge about the molecular mechanisms by which MCFAs and ω-3-PUFAs reduce the cerebral Aβ deposition, improve brain energy metabolism, and lessen oxidative stress levels.
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6
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Metherel AH, Rezaei K, Lacombe RJS, Bazinet RP. Plasma unesterified eicosapentaenoic acid is converted to docosahexaenoic acid (DHA) in the liver and supplies the brain with DHA in the presence or absence of dietary DHA. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158942. [PMID: 33845223 DOI: 10.1016/j.bbalip.2021.158942] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/22/2021] [Accepted: 04/03/2021] [Indexed: 01/06/2023]
Abstract
Recent meta-analyses suggest that high eicosapentaenoic acid (EPA, 20:5n-3) supplements may be beneficial in managing the symptoms of major depression. However, brain EPA levels are hundreds-fold lower than docosahexaenoic acid (DHA, 22:6n-3), making the potential mechanisms of action of EPA in the brain less clear. Using a kinetic model the goal of this study was to determine how EPA impacts brain DHA levels. Following 8 weeks feeding of a 2% alpha-linolenic acid (ALA, 18:3n-3) or DHA diet (2% ALA + 2% DHA), 11-week-old Long Evans rats were infused with unesterified 13C-EPA at steady-state for 3 h with plasma collected at 30 min intervals and livers and brains collected after 3 h for determining DHA synthesis-accretion kinetics in multiple lipid fractions. Most of the newly synthesized liver 13C-DHA was in phosphatidylethanolamine (PE, 37%-56%), however, 75-80% of plasma 13C-DHA was found in triacylglycerols (TAG) at 14 ± 5 and 46 ± 12 nmol/g/day (p < 0.05) in the ALA and DHA group, respectively. In the brain, PE and phosphatidylserine (PS) accreted the most 13C-DHA, and DHA compared to ALA feeding shortened DHA half-lives in most lipid fractions, resulting in total brain DHA half-lives of 32 ± 6 and 96 ± 24 (days/g ± SEM), respectively (p < 0.05). EPA was predominantly converted and stored as PE-DHA in the liver, secreted to plasma as TAG-DHA and accumulated in brain as PE and PS-DHA. In conclusion, EPA is a substantial source for brain DHA turnover and suggests an important role for EPA in maintaining brain DHA levels.
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Affiliation(s)
- Adam H Metherel
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada.
| | - Kimia Rezaei
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - R J Scott Lacombe
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - Richard P Bazinet
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
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7
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Palmina NP, Misharina TA, Krikunova NI, Antipova AS, Martirosova EI, Semenova MG. Changes in the Free Fatty-Acid Profile in the Liver and Brain of Mice Receiving Nanolipid Complexes. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821020101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Jia K, Feng Y, Brenna JT, Luo ZC, Zhao J, Li H, Li P, Zhang Q, Zhao Q, Dai Q, Zhong Y, Lambers T, Zhang H, Zhou H, Gao Y. Breast milk EPA associated with infant distractibility when EPA level is low. Nutrition 2021; 86:111143. [PMID: 33601118 DOI: 10.1016/j.nut.2021.111143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/10/2020] [Accepted: 12/29/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Dietary ω-3 polyunsaturated fatty acids (ω-3 PUFAs) may affect infants' executive function (EF), although it remains unclear whether this may be the effect of total ω-3 PUFAs or any specific ω-3 PUFA. We assessed the associations between ω-3 PUFAs in breast milk and EF in infants at 8 mo of age. METHODS Milk samples from the mothers of 120 breast-fed infants were collected at 42 d and 8 mo postpartum in Beijing, China. Infant's EF was evaluated by planning tasks and A-not-B tasks, including working memory, distractibility, and inhibition of prepotent response at age 8 mo. RESULTS Eicosapentaenoic acid (EPA) concentrations in breast milk were significantly higher at 42 d than 8 mo postpartum. Breast milk EPA levels at both 42 d (P = 0.037) and 8 mo (P = 0.005) postpartum were negatively associated with infant distractibility when EPA levels were low (< 0.05%). No significant association was observed for other ω-3 PUFAs with infant EF scores. CONCLUSIONS Our results suggest a beneficial effect of higher EPA in breast milk (improving infant's attention) when its levels are below a certain threshold.
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Affiliation(s)
- Keyu Jia
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yao Feng
- National Institute of Health Data Science at Peking University, Beijing, China; Department of Maternal and Child Health, School of Public Health, Peking University, Beijing, China
| | - J Thomas Brenna
- Departments of Pediatrics, Chemistry, and Human Nutrition, Dell Pediatric Research Institute, University of Texas at Austin, Austin, Texas, USA
| | - Zhong-Cheng Luo
- Lunenfeld-Tanenbaum Research Institute, Obstetrics and Gynecology, Mount Sinai Hospital, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Jing Zhao
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hong Li
- Core Facility of Molecular Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Peiqin Li
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qiuyi Zhang
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qianyu Zhao
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qi Dai
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yan Zhong
- Mead Johnson Pediatric Nutrition Institute, Shanghai, China/Nijmegen, the Netherlands
| | - Tim Lambers
- Mead Johnson Pediatric Nutrition Institute, Shanghai, China/Nijmegen, the Netherlands
| | - Hong Zhang
- Department of Statistics and Finance, School of Management, University of Science and Technology of China, Hefei, China
| | - Hong Zhou
- Department of Maternal and Child Health, School of Public Health, Peking University, Beijing, China.
| | - Ying Gao
- Chinese Academy of Sciences Key Laboratory of Nutrition, Metabolism, and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
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9
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Zhang Z, Emami S, Hennebelle M, Morgan RK, Lerno LA, Slupsky CM, Lein PJ, Taha AY. Linoleic acid-derived 13-hydroxyoctadecadienoic acid is absorbed and incorporated into rat tissues. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1866:158870. [PMID: 33340768 DOI: 10.1016/j.bbalip.2020.158870] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 10/22/2020] [Accepted: 12/14/2020] [Indexed: 12/22/2022]
Abstract
Linoleic acid (LNA)-derived 13-hydroxyoctadecadienoic acid (13-HODE) is a bioactive lipid mediator that regulates multiple signaling processes in vivo. 13-HODE is also produced when LNA is oxidized during food processing. However, the absorption and incorporation kinetics of dietary 13-HODE into tissues is not known. The present study measured unesterified d4-13-HODE plasma bioavailability and incorporation into rat liver, adipose, heart and brain following gavage or intravenous (IV) injection (n = 3 per group). Mass spectrometry analysis revealed that d4-13-HODE was absorbed within 20 min of gavage, and continued to incorporate into plasma esterified lipid fractions throughout the 90 min monitoring period (incorporation half-life of 71 min). Following IV injection, unesterified d4-13-HODE was rapidly eliminated from plasma with a half-life of 1 min. Analysis of tracer incorporation kinetics into rat tissues following IV injection or gavage revealed that the esterified tracer preferentially incorporated into liver, adipose and heart compared to unesterified d4-13-HODE. No tracer was detected in the brain. This study demonstrates that dietary 13-HODE is absorbed, and incorporated into peripheral tissues from esterified plasma lipid pools. Understanding the chronic effects of dietary 13-HODE exposure on peripheral tissue physiology and metabolism merits future investigation.
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Affiliation(s)
- Zhichao Zhang
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA
| | - Shiva Emami
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA
| | - Marie Hennebelle
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA
| | - Rhianna K Morgan
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Larry A Lerno
- Food Safety and Measurement Facility, University of California, Davis, CA, USA
| | - Carolyn M Slupsky
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA; Department of Nutrition, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA
| | - Pamela J Lein
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Ameer Y Taha
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA.
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10
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Bazinet RP, Metherel AH, Chen CT, Shaikh SR, Nadjar A, Joffre C, Layé S. Brain eicosapentaenoic acid metabolism as a lead for novel therapeutics in major depression. Brain Behav Immun 2020; 85:21-28. [PMID: 31278982 DOI: 10.1016/j.bbi.2019.07.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 12/12/2022] Open
Abstract
The results of several meta-analyses suggest that eicosapentaenoic acid (EPA) supplementation is therapeutic in managing the symptoms of major depression. It was previously assumed that because EPA is extremely low in the brain it did not cross the blood-brain barrier and any therapeutic effects it exerted would be via the periphery. However, more recent studies have established that EPA does enter the brain, but is rapidly metabolised following entry. While EPA does not accumulate within the brain, it is present in microglia and homeostatic mechanisms may regulate its esterification to phospholipids that serve important roles in cell signaling. Furthermore, a variety of signaling molecules from EPA have been described in the periphery and they have the potential to exert effects within the brain. If EPA is confirmed to be therapeutic in major depression as a result of adequately powered randomized clinical trials, future research on brain EPA metabolism could lead to the discovery of novel targets for treating or preventing major depression.
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Affiliation(s)
- Richard P Bazinet
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada.
| | - Adam H Metherel
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Chuck T Chen
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, North Bethesda, MD 20852, United States
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health & School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Agnes Nadjar
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076 Bordeaux, France; Université de Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux Cedex, France
| | - Corinne Joffre
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076 Bordeaux, France; Université de Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux Cedex, France
| | - Sophie Layé
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, 33076 Bordeaux, France; Université de Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux Cedex, France
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11
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Naoe S, Tsugawa H, Takahashi M, Ikeda K, Arita M. Characterization of Lipid Profiles after Dietary Intake of Polyunsaturated Fatty Acids Using Integrated Untargeted and Targeted Lipidomics. Metabolites 2019; 9:E241. [PMID: 31640217 PMCID: PMC6836067 DOI: 10.3390/metabo9100241] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/17/2019] [Accepted: 10/17/2019] [Indexed: 12/25/2022] Open
Abstract
Illuminating the comprehensive lipid profiles after dietary supplementation of polyunsaturated fatty acids (PUFAs) is crucial to revealing the tissue distribution of PUFAs in living organisms, as well as to providing novel insights into lipid metabolism. Here, we performed lipidomic analyses on mouse plasma and nine tissues, including the liver, kidney, brain, white adipose, heart, lung, small intestine, skeletal muscle, and spleen, with the dietary intake conditions of arachidonic acid (ARA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) as the ethyl ester form. We incorporated targeted and untargeted approaches for profiling oxylipins and complex lipids such as glycerol (phospho) lipids, sphingolipids, and sterols, respectively, which led to the characterization of 1026 lipid molecules from the mouse tissues. The lipidomic analysis indicated that the intake of PUFAs strongly impacted the lipid profiles of metabolic organs such as the liver and kidney, while causing less impact on the brain. Moreover, we revealed a unique lipid modulation in most tissues, where phospholipids containing linoleic acid were significantly decreased in mice on the ARA-supplemented diet, and bis(monoacylglycero)phosphate (BMP) selectively incorporated DHA over ARA and EPA. We comprehensively studied the lipid profiles after dietary intake of PUFAs, which gives insight into lipid metabolism and nutrition research on PUFA supplementation.
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Affiliation(s)
- Satoko Naoe
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan.
| | - Hiroshi Tsugawa
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan.
- Metabolome informatics research team, RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan.
| | - Mikiko Takahashi
- Metabolome informatics research team, RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan.
| | - Kazutaka Ikeda
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan.
- Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama 230-0045, Japan.
| | - Makoto Arita
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan.
- Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama 230-0045, Japan.
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato-ku, Tokyo 105-8512, Japan.
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Yalagala PCR, Sugasini D, Dasarathi S, Pahan K, Subbaiah PV. Dietary lysophosphatidylcholine-EPA enriches both EPA and DHA in the brain: potential treatment for depression. J Lipid Res 2019; 60:566-578. [PMID: 30530735 PMCID: PMC6399499 DOI: 10.1194/jlr.m090464] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/07/2018] [Indexed: 12/21/2022] Open
Abstract
EPA and DHA protect against multiple metabolic and neurologic disorders. Although DHA appears more effective for neuroinflammatory conditions, EPA is more beneficial for depression. However, the brain contains negligible amounts of EPA, and dietary supplements fail to increase it appreciably. We tested the hypothesis that this failure is due to absorption of EPA as triacylglycerol, whereas the transporter at the blood-brain barrier requires EPA as lysophosphatidylcholine (LPC). We compared tissue uptake in normal mice gavaged with equal amounts (3.3 μmol/day) of either LPC-EPA or free EPA (surrogate for current supplements) for 15 days and also measured target gene expression. Compared with the no-EPA control, LPC-EPA increased brain EPA >100-fold (from 0.03 to 4 μmol/g); free EPA had little effect. Furthermore, LPC-EPA, but not free EPA, increased brain DHA 2-fold. Free EPA increased EPA in adipose tissue, and both supplements increased EPA and DHA in the liver and heart. Only LPC-EPA increased EPA and DHA in the retina, and expression of brain-derived neurotrophic factor, cyclic AMP response element binding protein, and 5-hydroxy tryptamine (serotonin) receptor 1A in the brain. These novel results show that brain EPA can be increased through diet. Because LPC-EPA increased both EPA and DHA in the brain, it may help in the treatment of depression as well as neuroinflammatory diseases, such as Alzheimer's disease.
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13
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Platelet mitochondrial dysfunction and the correlation with human diseases. Biochem Soc Trans 2017; 45:1213-1223. [PMID: 29054925 DOI: 10.1042/bst20170291] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/10/2017] [Accepted: 09/14/2017] [Indexed: 12/20/2022]
Abstract
The platelet is considered as an accessible and valuable tool to study mitochondrial function, owing to its greater content of fully functional mitochondria compared with other metabolically active organelles. Different lines of studies have demonstrated that mitochondria in platelets have function far more than thrombogenesis regulation, and beyond hemostasis, platelet mitochondrial dysfunction has also been used for studying mitochondrial-related diseases. In this review, the interplay between platelet mitochondrial dysfunction and oxidative stress, mitochondrial DNA lesions, electron transfer chain impairments, mitochondrial apoptosis and mitophagy has been outlined. Meanwhile, considerable efforts have been made towards understanding the role of platelet mitochondrial dysfunction in human diseases, such as diabetes mellitus, sepsis and neurodegenerative disorders. Alongside this, we have also articulated our perspectives on the development of potential biomarkers of platelet mitochondrial dysfunction in mitochondrial-related diseases.
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Ganança L, Galfalvy HC, Oquendo MA, Hezghia A, Cooper TB, Mann JJ, Sublette ME. Lipid correlates of antidepressant response to omega-3 polyunsaturated fatty acid supplementation: A pilot study. Prostaglandins Leukot Essent Fatty Acids 2017; 119:38-44. [PMID: 28410668 PMCID: PMC5487266 DOI: 10.1016/j.plefa.2017.03.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 02/15/2017] [Accepted: 03/06/2017] [Indexed: 12/22/2022]
Abstract
Low omega-3 polyunsaturated fatty acid (PUFA) levels are seen in major depression. We examined effects of six weeks of fish oil supplementation on clinical characteristics in 16 patients with symptomatic major depressive disorder, and tested plasma phospholipid levels of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) as correlates of clinical response. Depression symptoms improved after supplementation (p=0.007). The reduction in depression severity was not predicted by baseline PUFA levels but did exhibit a relationship with endpoint PUFAs, correlating negatively with DHA as a percentage of plasma phospholipids (DHA%; R2=0.60, p=0.004), adjusting for endpoint EPA%; and correlating positively with endpoint EPA% (R2=0.58, p=0.007), adjusting for endpoint DHA%. Thus, the higher the proportion of DHA to EPA, the greater the reduction in depression severity (r=-0.43, p=0.097). Five patients showed a decrease of >50% on the 17-item Hamilton Depression Rating Scale and a final score <7 and were thus not only responders but met standard criteria for remission, and were distinguished from non-responders by higher levels of DHA% (p=0.03). This pilot study suggests that post-supplementation DHA% levels may be a necessary target for antidepressant response to fish oil, and that this may depend to some extent on the efficacy of EPA conversion to DHA.
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Affiliation(s)
- Licinia Ganança
- Department of Psychiatry, Columbia University, United States; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, United States.
| | - Hanga C Galfalvy
- Department of Psychiatry, Columbia University, United States; Department of Biostatistics, Columbia University, United States.
| | - Maria A Oquendo
- Department of Psychiatry, Columbia University, United States; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, United States.
| | - Adrienne Hezghia
- Department of Psychiatry, Columbia University, United States; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, United States.
| | - Thomas B Cooper
- Department of Psychiatry, Columbia University, United States; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, United States; Nathan S. Kline Institute for Psychiatric Research, United States.
| | - J John Mann
- Department of Psychiatry, Columbia University, United States; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, United States; Department of Radiology, Columbia University, United States.
| | - M Elizabeth Sublette
- Department of Psychiatry, Columbia University, United States; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, United States.
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Tripathi S, Kushwaha R, Mishra J, Gupta MK, Kumar H, Sanyal S, Singh D, Sanyal S, Sahasrabuddhe AA, Kamthan M, Mudiam MKR, Bandyopadhyay S. Docosahexaenoic acid up-regulates both PI3K/AKT-dependent FABP7-PPARγ interaction and MKP3 that enhance GFAP in developing rat brain astrocytes. J Neurochem 2016; 140:96-113. [DOI: 10.1111/jnc.13879] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/24/2016] [Accepted: 10/20/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Sachin Tripathi
- Developmental Toxicology Laboratory; Systems Toxicology & Health Risk Assessment Group; CSIR-Indian Institute of Toxicology Research (IITR); Lucknow India
- Amity Institute of Biotechnology; Amity University (Lucknow campus); Lucknow India
| | - Rajesh Kushwaha
- Developmental Toxicology Laboratory; Systems Toxicology & Health Risk Assessment Group; CSIR-Indian Institute of Toxicology Research (IITR); Lucknow India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IITR campus; Lucknow India
| | - Juhi Mishra
- Developmental Toxicology Laboratory; Systems Toxicology & Health Risk Assessment Group; CSIR-Indian Institute of Toxicology Research (IITR); Lucknow India
- Babu Banarasi Das University; Lucknow India
| | - Manoj Kumar Gupta
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IITR campus; Lucknow India
- Analytical Chemistry Laboratory and Regulatory Toxicology group; CSIR-IITR; Lucknow India
| | - Harish Kumar
- Division of Biochemistry; CSIR-Central Drug Research Institute (CDRI); Lucknow India
| | - Somali Sanyal
- Amity Institute of Biotechnology; Amity University (Lucknow campus); Lucknow India
| | | | - Sabyasachi Sanyal
- Division of Biochemistry; CSIR-Central Drug Research Institute (CDRI); Lucknow India
| | | | - Mohan Kamthan
- Environmental Biotechnology Laboratory; Environmental Toxicology Group; CSIR-IITR; Lucknow India
| | | | - Sanghamitra Bandyopadhyay
- Developmental Toxicology Laboratory; Systems Toxicology & Health Risk Assessment Group; CSIR-Indian Institute of Toxicology Research (IITR); Lucknow India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IITR campus; Lucknow India
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Chhetry BT, Hezghia A, Miller JM, Lee S, Rubin-Falcone H, Cooper TB, Oquendo MA, Mann JJ, Sublette ME. Omega-3 polyunsaturated fatty acid supplementation and white matter changes in major depression. J Psychiatr Res 2016; 75:65-74. [PMID: 26802812 PMCID: PMC4948754 DOI: 10.1016/j.jpsychires.2015.12.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/02/2015] [Accepted: 12/07/2015] [Indexed: 01/15/2023]
Abstract
White matter abnormalities are implicated in major depressive disorder (MDD). As omega-3 polyunsaturated fatty acids (PUFAs) are low in MDD and affect myelination, we hypothesized that PUFA supplementation may alleviate depression through improving white matter integrity. Acutely depressed MDD patients (n = 16) and healthy volunteers (HV, n = 12) had 25-direction diffusion tensor imaging before and after 6 weeks of fish oil supplementation. Plasma phospholipid omega-3 PUFAs eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and omega-6 PUFA arachidonic acid (AA) levels were determined before and after supplementation using high-throughput extraction and gas chromatography and expressed as a percentage of total phospholipids (PUFA%). Fractional anisotropy (FA) was computed using a least-squares-fit diffusion tensor with non-linear optimization. Regression analyses were performed with changes in PUFA levels or Hamilton Depression Rating Scale scores as predictors, voxel-wise difference maps of FA as outcome, covariates age and sex, with family-wise correction for multiple comparisons. Increases in plasma phospholipid DHA% (but not EPA% or AA%) after fish oil predicted increases in FA in MDD but not HV, in a cluster including genu and body of the corpus callosum, and anterior corona radiata and cingulum (cluster-level p < 0.001, peak t-score = 8.10, p = 0.002). There was a trend for greater change in FA in MDD responders over nonresponders (t = -1.874, df = 13.56, p = 0.08). Decreased depression severity predicted increased FA in left corticospinal tract and superior longitudinal fasciculus (cluster-level p < 0.001, peak t-score = 5.04, p = 0.0001). Increased FA correlated with increased DHA% and decreased depression severity after fish oil supplementation suggests therapeutic effects of omega-3 PUFAs may be related to improvements in white matter integrity.
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Affiliation(s)
- Binod Thapa Chhetry
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA
| | - Adrienne Hezghia
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA
| | - Jeffrey M. Miller
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA
| | - Seonjoo Lee
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Department of Biostatistics, Columbia University, 722 West 168th St., New York, NY 10032, USA
| | - Harry Rubin-Falcone
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA
| | - Thomas B. Cooper
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA,Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Orangeburg, NY 10962, USA
| | - Maria A. Oquendo
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA
| | - J. John Mann
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA,Department of Radiology, Columbia University, 622 West 168th St, New York, NY, USA
| | - M. Elizabeth Sublette
- Department of Psychiatry, Columbia University, 1051 Riverside Drive, New York, NY 10032, USA,Division of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, USA,To whom correspondence should be addressed: New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, New York, NY 10032, TEL 646 774-7514, FAX 646 774-7589,
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17
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Saunders EFH, Reider A, Singh G, Gelenberg AJ, Rapoport SI. Low unesterified:esterified eicosapentaenoic acid (EPA) plasma concentration ratio is associated with bipolar disorder episodes, and omega-3 plasma concentrations are altered by treatment. Bipolar Disord 2015; 17:729-42. [PMID: 26424416 PMCID: PMC4623957 DOI: 10.1111/bdi.12337] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 08/01/2015] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Omega (n)-3 and n-6 polyunsaturated fatty acids (PUFAs) are molecular modulators of neurotransmission and inflammation. We hypothesized that plasma concentrations of n-3 PUFAs would be lower and those of n-6 PUFAs higher in subjects with bipolar disorder (BD) compared to healthy controls (HCs), and would correlate with symptom severity in subjects with BD, and that effective treatment would correlate with increased n-3 but lower n-6 PUFA levels. Additionally, we explored clinical correlations and group differences in plasma levels of saturated and monounsaturated fatty acids. METHODS This observational, parallel group study compared biomarkers between HCs (n = 31) and symptomatic subjects with BD (n = 27) when ill and after symptomatic recovery (follow-up). Plasma concentrations of five PUFAs [linoleic acid (LA), arachidonic acid (AA), alpha-linolenic acid (ALA), docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA)], two saturated fatty acids (palmitic acid and stearic acid) and two monounsaturated fatty acids (palmitoleic acid and oleic acid) were measured in esterified (E) and unesterified (UE) forms. Calculated ratios included UE:E for the five PUFAs, ratios of n-3 PUFAs (DHA:ALA, EPA:ALA and EPA:DHA), and the ratio of n-6:n-3 AA:EPA. Comparisons of plasma fatty acid levels and ratios between BD and HC groups were made with Student t-tests, and between the BD group at baseline and follow-up using paired t-tests. Comparison of categorical variables was performed using chi-square tests. Pearson's r was used for bivariate correlations with clinical variables, including depressive and manic symptoms, current panic attacks, and psychosis. RESULTS UE EPA was lower in subjects with BD than in HCs, with a large effect size (Cohen's d = 0.86, p < 0.002); however, it was not statistically significant after correction for multiple comparisons. No statistically significant difference was seen in any plasma PUFA concentration between the BD and HC groups after Bonferroni correction for 40 comparisons, at p < 0.001. Neither depressive severity nor mania severity was correlated significantly with any PUFA concentration. Exploratory comparison showed lower UE:E EPA in the BD than the HC group (p < 0.0001). At follow-up in the BD group, UE, E DHA:ALA, and UE EPA:ALA were decreased (p < 0.002). Exploratory correlations of clinical variables revealed that mania severity and suicidality were positively correlated with UE:E EPA ratio, and that several plasma levels and ratios correlated with panic disorder and psychosis. Depressive severity was not correlated with any ratio. No plasma fatty acid level or ratio correlated with self-reported n-3 PUFA intake or use of medication by class. CONCLUSIONS A large effect size of reduced UE EPA, and a lower plasma UE:E concentration ratio of EPA in the symptomatic BD state may be important factors in vulnerability to a mood state. Altered n-3 PUFA ratios could indicate changes in PUFA metabolism concurrent with symptom improvement. Our findings are consistent with preclinical and postmortem data and suggest testing interventions that increase n-3 and decrease n-6 dietary PUFA intake.
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Affiliation(s)
- Erika FH Saunders
- Department of Psychiatry, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA,University of Michigan Department of Psychiatry, Ann Arbor, MI,University of Michigan Depression Center, Ann Arbor, MI
| | - Aubrey Reider
- Department of Psychiatry, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| | - Gagan Singh
- Department of Psychiatry, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| | - Alan J Gelenberg
- Department of Psychiatry, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| | - Stanley I Rapoport
- Brain Physiology and Metabolism Section, Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
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18
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Choi J, Leonard SW, Kasper K, McDougall M, Stevens JF, Tanguay RL, Traber MG. Novel function of vitamin E in regulation of zebrafish (Danio rerio) brain lysophospholipids discovered using lipidomics. J Lipid Res 2015; 56:1182-90. [PMID: 25855633 DOI: 10.1194/jlr.m058941] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 01/22/2023] Open
Abstract
We hypothesized that brains from vitamin E-deficient (E-) zebrafish (Danio rerio) would undergo increased lipid peroxidation because they contain highly polyunsaturated fatty acids, thus susceptible lipids could be identified. Brains from zebrafish fed for 9 months defined diets without (E-) or with (E+) added vitamin E (500 mg RRR-α-tocopheryl acetate per kilogram diet) were studied. Using an untargeted approach, 1-hexadecanoyl-2-docosahexaenoyl-sn-glycero-3-phosphocholine [DHA-PC 38:6, PC 16:0/22:6]was the lipid that showed the most significant and greatest fold-differences between groups. DHA-PC concentrations were approximately 1/3 lower in E- (4.3 ± 0.6 mg/g) compared with E+ brains (6.5 ± 0.9 mg/g, mean ± SEM, n = 10 per group, P = 0.04). Using lipidomics, 155 lipids in brain extracts were identified. Only four phospholipids (PLs) were different (P < 0.05) between groups; they were lower in E- brains and contained DHA with DHA-PC 38:6 at the highest abundances. Moreover, hydroxy-DHA-PC 38:6 was increased in E- brains (P = 0.0341) supporting the hypothesis of DHA peroxidation. More striking was the depletion in E- brains of nearly 60% of 19 different lysophospholipids (lysoPLs) (combined P = 0.0003), which are critical for membrane PL remodeling. Thus, E- brains contained fewer DHA-PLs, more hydroxy-DHA-PCs, and fewer lysoPLs, suggesting that lipid peroxidation depletes membrane DHA-PC and homeostatic mechanisms to repair the damage resulting in lysoPL depletion.
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Affiliation(s)
- Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Pharmacy, Oregon State University, Corvallis, OR 97331
| | - Scott W Leonard
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331
| | - Katherine Kasper
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331
| | - Melissa McDougall
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Pharmacy, Oregon State University, Corvallis, OR 97331 Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331
| | - Robert L Tanguay
- Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331 Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331
| | - Maret G Traber
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331 College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331 Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331
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Liu JJ, Green P, John Mann J, Rapoport SI, Sublette ME. Pathways of polyunsaturated fatty acid utilization: implications for brain function in neuropsychiatric health and disease. Brain Res 2015; 1597:220-46. [PMID: 25498862 PMCID: PMC4339314 DOI: 10.1016/j.brainres.2014.11.059] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 11/11/2014] [Accepted: 11/27/2014] [Indexed: 12/28/2022]
Abstract
Essential polyunsaturated fatty acids (PUFAs) have profound effects on brain development and function. Abnormalities of PUFA status have been implicated in neuropsychiatric diseases such as major depression, bipolar disorder, schizophrenia, Alzheimer's disease, and attention deficit hyperactivity disorder. Pathophysiologic mechanisms could involve not only suboptimal PUFA intake, but also metabolic and genetic abnormalities, defective hepatic metabolism, and problems with diffusion and transport. This article provides an overview of physiologic factors regulating PUFA utilization, highlighting their relevance to neuropsychiatric disease.
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Affiliation(s)
- Joanne J Liu
- Department of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, New York, NY, USA; New York Medical College, Valhalla, NY, USA
| | - Pnina Green
- Laboratory of Metabolic Research, Felsenstein Medical Research Center, Tel Aviv University, Petach Tikva, Israel
| | - J John Mann
- Department of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, New York, NY, USA; Department of Psychiatry, Columbia University, New York, NY, USA; Department of Radiology, Columbia University, New York, NY, USA
| | - Stanley I Rapoport
- Brain Physiology and Metabolism Section, Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - M Elizabeth Sublette
- Department of Molecular Imaging & Neuropathology, New York State Psychiatric Institute, New York, NY, USA; Department of Psychiatry, Columbia University, New York, NY, USA.
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20
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Chen CT, Bazinet RP. β-oxidation and rapid metabolism, but not uptake regulate brain eicosapentaenoic acid levels. Prostaglandins Leukot Essent Fatty Acids 2015; 92:33-40. [PMID: 24986271 DOI: 10.1016/j.plefa.2014.05.007] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The brain has a unique polyunsaturated fatty acid composition, with high levels of arachidonic and docosahexaenoic acids (DHA) while levels of eicosapentaenoic acid (EPA) are several orders of magnitude lower. As evidence accumulated that fatty acid entry into the brain was not selective and, in fact, that DHA and EPA enter the brain at similar rates, new mechanisms were required to explain their large concentration differences in the brain. Here we summarize recent research demonstrating that EPA is rapidly and extensively β-oxidized upon entry into the brain. Although the ATP generated from the β-oxidation of EPA is low compared to the use of glucose, fatty acid β-oxidation may serve to regulate brain fatty acid levels in the absence of selective transportation. Furthermore, when β-oxidation of EPA is blocked, desaturation of EPA increases and Land׳s recycling decreases to maintain low EPA levels.
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Affiliation(s)
- Chuck T Chen
- Department of Nutritional Sciences, University of Toronto, Fitzgerald Building, 150 College St. Room 306, Ontario, Toronto, M5S 3E2 Canada
| | - Richard P Bazinet
- Department of Nutritional Sciences, University of Toronto, Fitzgerald Building, 150 College St. Room 306, Ontario, Toronto, M5S 3E2 Canada.
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21
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Ibarguren M, López DJ, Escribá PV. The effect of natural and synthetic fatty acids on membrane structure, microdomain organization, cellular functions and human health. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:1518-28. [DOI: 10.1016/j.bbamem.2013.12.021] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 12/20/2013] [Accepted: 12/24/2013] [Indexed: 02/06/2023]
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