51
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Ghizoni H, Ventura M, Colle D, Gonçalves CL, de Souza V, Hartwig JM, Santos DB, Naime AA, Cristina de Oliveira Souza V, Lopes MW, Barbosa F, Brocardo PS, Farina M. Effects of perinatal exposure to n-3 polyunsaturated fatty acids and methylmercury on cerebellar and behavioral parameters in mice. Food Chem Toxicol 2018; 120:603-615. [DOI: 10.1016/j.fct.2018.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/20/2022]
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52
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Drouin G, Guillocheau E, Catheline D, Baudry C, Le Ruyet P, Rioux V, Legrand P. Impact of n-3 Docosapentaenoic Acid Supplementation on Fatty Acid Composition in Rat Differs Depending upon Tissues and Is Influenced by the Presence of Dairy Lipids in the Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9976-9988. [PMID: 30056717 DOI: 10.1021/acs.jafc.8b03069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The n-3 docosapentaenoic acid (n-3 DPA) could be a novel source of n-3 long-chain polyunsaturated fatty acids (LCPUFA) with beneficial physiological effects. Following the supplementation of 0.5% purified n-3 DPA for 3 weeks from weaning, the n-3 DPA content increased in one-half of the 18 studied tissues (from +50% to +110%, p < 0.05) and mostly affected the spleen, lung, heart, liver, and bone marrow. The n-3 DPA was slightly converted into DHA (+20% in affected tissues, p < 0.05) and mostly retroconverted into EPA (35-46% of n-3 DPA intake in liver and kidney) showing an increased content of these LCPUFA in specific tissues. The partial incorporation of dairy lipids in the diet for 6 weeks increased overall n-3 PUFA status and brain DHA status. Furthermore, the n-3 DPA supplementation and dairy lipids had an additive effect on the increase of n-3 PUFA tissue contents. Moreover, n-3 DPA supplementation decreased plasma cholesterol.
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Affiliation(s)
- Gaetan Drouin
- Laboratory of Biochemistry and Human Nutrition , Agrocampus Ouest , Rennes F-35000 , France
| | - Etienne Guillocheau
- Laboratory of Biochemistry and Human Nutrition , Agrocampus Ouest , Rennes F-35000 , France
| | - Daniel Catheline
- Laboratory of Biochemistry and Human Nutrition , Agrocampus Ouest , Rennes F-35000 , France
| | | | | | - Vincent Rioux
- Laboratory of Biochemistry and Human Nutrition , Agrocampus Ouest , Rennes F-35000 , France
| | - Philippe Legrand
- Laboratory of Biochemistry and Human Nutrition , Agrocampus Ouest , Rennes F-35000 , France
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53
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Nurhasan M, Roos N, Skau JK, Wieringa FT, Friis H, Michaelsen KF, Dijkhuizen MA, Stark KD, Ritz C, Chhoun C, Lauritzen L. Effect of complementary food with small amounts of freshwater fish on whole blood n-3 fatty acids in Cambodian infants age 6-15 months. Prostaglandins Leukot Essent Fatty Acids 2018; 135:92-101. [PMID: 30103938 DOI: 10.1016/j.plefa.2018.07.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/06/2018] [Accepted: 07/06/2018] [Indexed: 11/20/2022]
Abstract
The impact of freshwater fish consumption on the status of long-chain n-3 fatty acids (n-3 LCPUFA) in infants in landlocked, low-income populations is unknown. We used secondary data from a randomized, single-blinded, controlled trial to evaluate the impact of daily consumption of complementary food products with small amounts of freshwater fish on whole blood n-3 LCPUFA in Cambodian infants. Infants (n = 419), received daily, one of four food products for 9 months. Two products contained freshwater fish: WinFood (10% fish by dry weight) and WinFood-L (12% fish by dry weight), while two products were non-fish-based: corn-soy blends (CSB+ and CSB++). Whole blood fatty acids and breastfeeding status were assessed at baseline and endline of the intervention. The WinFood products contributed to an estimated maximum intake of 86.5 mg/day n-3 LCPUFA. There was no difference in whole blood n-3 LCPUFA among the four intervention groups or between the fish-based and the non-fish-based groups (p ≥ 0.142). At endline, 71% of the children were still breastfed. Interaction analyses indicated a lower ratio of n-6/n-3 PUFA in non-breastfed infants in the WinFood groups compared to the CSB groups (pinteraction = 0.026). Thus, a high intake of n-3 LCPUFA from breastmilk may have blurred a potential impact of small amounts of freshwater fish effect on n-3 LCPUFA status in Cambodian infants.
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Affiliation(s)
- Mulia Nurhasan
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark; Center for Regulation, Policy and Governance, Universitas Ibn Khaldun Bogor, Indonesia
| | - Nanna Roos
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark.
| | - Jutta Kh Skau
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Frank T Wieringa
- UMR-204 Nutripass, Institut de Recherche pour le Développement, IRD/UM/SupAgro, Montpellier, France
| | - Henrik Friis
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Kim F Michaelsen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | | | - Ken D Stark
- Department of Kinesiology, University of Waterloo, Canada
| | - Christian Ritz
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Chamnan Chhoun
- Department of Fisheries Post-harvest Technologies and Quality Control, Fishery Administration, Ministry of Agriculture, Forestry and Fisheries, Phnom Penh
| | - Lotte Lauritzen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark.
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54
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Tian HM, Wu YX, Lin YQ, Chen XY, Yu M, Lu T, Xie L. Dietary patterns affect maternal macronutrient intake levels and the fatty acid profile of breast milk in lactating Chinese mothers. Nutrition 2018; 58:83-88. [PMID: 30391695 DOI: 10.1016/j.nut.2018.06.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 06/06/2018] [Accepted: 06/23/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Fatty acids (FA) in human milk play an important role in meeting the nutritional demands and promoting the growth and development of breastfeeding infants. Breast milk FA is sensitive to maternal dietary habits, and dietary patterns are better used to explain the effect of diet on FA. Few studies have examined the association between maternal dietary patterns and the FA components of breast milk in developing countries. In this study, we aimed to determine whether dietary patterns affect the FA profile of breast milk in lactating Chinese mothers with the overall goal to optimize the management of infant feeding. METHODS A total of 274 lactating women ranging from 22 d to 6 mo postpartum were included, and samples of their breast milk were collected together with completed questionnaires. Using a principal component analysis, four dietary patterns were identified in a rotated component matrix. FA profiles were detected using capillary gas chromatography and presented as the percentage by weight of total FA. RESULTS Maternal intake of energy, carbohydrates, and proteins showed differences between the different dietary patterns. In addition, there were significant differences in the total proportions of saturated, polyunsaturated, and ω-6 polyunsaturated fatty acids in breast milk among the four patterns (P < 0.001; P = 0.025; P = 0.038, respectively). CONCLUSIONS The results demonstrate that maternal dietary patterns can affect macronutrient intake levels and milk FA profiles in lactating Chinese women. These results are of great significance in understanding how a maternal diet can both improve maternal macronutrient intake and the FA nutritional status of breast milk.
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Affiliation(s)
- Hui-Min Tian
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Yi-Xia Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Yi-Qi Lin
- Jilin Women and Children Health Hospital, Changchun, P.R. China
| | - Xue-Yan Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Miao Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Tong Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Lin Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China.
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55
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Bernard JY, Pan H, Aris IM, Moreno-Betancur M, Soh SE, Yap F, Tan KH, Shek LP, Chong YS, Gluckman PD, Calder PC, Godfrey KM, Chong MFF, Kramer MS, Karnani N, Lee YS. Long-chain polyunsaturated fatty acids, gestation duration, and birth size: a Mendelian randomization study using fatty acid desaturase variants. Am J Clin Nutr 2018; 108:92-100. [PMID: 29878044 PMCID: PMC6038907 DOI: 10.1093/ajcn/nqy079] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/23/2018] [Indexed: 11/12/2022] Open
Abstract
Background In randomized trials, supplementation of n-3 (ω-3) long-chain polyunsaturated fatty acids (LC-PUFAs) during pregnancy has resulted in increased size at birth, which is attributable to longer gestation. Objective We examined this finding by using a Mendelian randomization approach utilizing fatty acid desaturase (FADS) gene variants affecting LC-PUFA metabolism. Design As part of a tri-ethnic mother-offspring cohort in Singapore, 35 genetic variants in FADS1, FADS2, and FADS3 were genotyped in 898 mothers and 1103 offspring. Maternal plasma n-3 and n-6 PUFA concentrations at 26-28 wk of gestation were measured. Gestation duration was derived from an ultrasound dating scan in early pregnancy and from birth date. Birth length and weight were measured. Eight FADS variants were selected through a tagging-SNP approach and examined in association with PUFA concentrations, gestation duration among spontaneous labors, and birth size with the use of ethnicity-adjusted linear regressions and survival models that accounted for the competing risks of induced labor and prelabor cesarean delivery. Results Maternal FADS1 variant rs174546, tagging for 8 other variants located on FADS1 and FADS2, was strongly related to plasma n-6 but not n-3 LC-PUFA concentrations. Offspring and maternal FADS3 variants were associated with gestation duration among women who had spontaneous labor: each copy of rs174450 minor allele C was associated with a shorter gestation by 2.2 d (95% CI: 0.9, 3.4 d) and 1.9 d (0.7, 3.0 d) for maternal and offspring variants, respectively. In survival models, rs174450 minor allele homozygotes had reduced time to delivery after spontaneous labor compared with major allele homozygotes [HR (95% CI): 1.51 (1.18, 1.95) and 1.51 (1.20, 1.89) for mothers and offspring, respectively]. Conclusions With the use of a Mendelian randomization approach, we observed associations between FADS variants and gestation duration. This suggests a potential role of LC-PUFAs in gestation duration. This trial was registered at http://www.clinicaltrials.gov as NCT01174875.
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Affiliation(s)
- Jonathan Y. Bernard
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL)
| | - Hong Pan
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL)
| | - Izzuddin M. Aris
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL)
| | - Margarita Moreno-Betancur
- Clinical Epidemiology and Biostatistics Unit, Murdoch Childrens Research Institute, Melbourne, Australia (MMB),Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia (MMB)
| | - Shu-E Soh
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore (SES, LPS, YSL)
| | - Fabian Yap
- Department of Paediatric Endocrinology, KK Women's and Children's Hospital, Singapore (FY)
| | - Kok Hian Tan
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore (KHT),Duke-NUS Medical School, Singapore (KHT)
| | - Lynette P. Shek
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore (SES, LPS, YSL),Khoo Teck Puat - National University Children’s Medical Institute, National University Health System, Singapore (LPS, YSL)
| | - Yap-Seng Chong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore (YSC, MSK)
| | - Peter D. Gluckman
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Liggins Institute, University of Auckland, Auckland, New Zealand (PDG)
| | - Philip C. Calder
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom (PCC, KMG),NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom (PCC, KMG)
| | - Keith M. Godfrey
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom (PCC, KMG),NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom (PCC, KMG),Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom (KMG)
| | - Mary Foong-Fong Chong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Clinical Nutrition Research Centre (CNRC), Singapore Institute for Clinical Sciences, Centre for Translational Medicine, Singapore (MFFC),Saw Swee Hock School of Public Health, National University of Singapore, Singapore (MFFC)
| | - Michael S. Kramer
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore (YSC, MSK),Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, Quebec, Canada (MSK)
| | - Neerja Karnani
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore (NK)
| | - Yung Seng Lee
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore (JYB, HP, IMA, SES, LPS, YSC, PDG, MFFC, NK, YSL),Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore (SES, LPS, YSL),Khoo Teck Puat - National University Children’s Medical Institute, National University Health System, Singapore (LPS, YSL)
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56
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Fecchio C, Palazzi L, de Laureto PP. α-Synuclein and Polyunsaturated Fatty Acids: Molecular Basis of the Interaction and Implication in Neurodegeneration. Molecules 2018; 23:molecules23071531. [PMID: 29941855 PMCID: PMC6099649 DOI: 10.3390/molecules23071531] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/19/2018] [Accepted: 06/23/2018] [Indexed: 12/31/2022] Open
Abstract
α-Synuclein (α-syn) is a 140-amino acid protein, the physiological function of which has yet to be clarified. It is involved in several neurodegenerative disorders, and the interaction of the protein with brain lipids plays an important role in the pathogenesis of Parkinson’s disease (PD). Polyunsaturated fatty acids (PUFA) are highly abundant in the brain where they play critical roles in neuronal membrane fluidity and permeability, serve as energy reserves and function as second messengers in cell signaling. PUFA concentration and composition in the brain are altered with age when also an increase of lipid peroxidation is observed. Considering that PD is clearly correlated with oxidative stress, PUFA abundance and composition became of great interest in neurodegeneration studies because of PUFA’s high propensity to oxidize. The high levels of the PUFA docosahexaenoic acid (DHA) in brain areas containing α-syn inclusions in patients with PD further support the hypothesis of possible interactions between α-syn and DHA. Additionally, a possible functional role of α-syn in sequestering the early peroxidation products of fatty acids was recently proposed. Here, we provide an overview of the current knowledge regarding the molecular interactions between α-syn and fatty acids and the effect exerted by the protein on their oxidative state. We highlight recent findings supporting a neuroprotective role of the protein, linking α-syn, altered lipid composition in neurodegenerative disorders and PD development.
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Affiliation(s)
- Chiara Fecchio
- Department of Biomedical Sciences, University of Padova; Padova 35131, Italy.
| | - Luana Palazzi
- Department of Pharmaceutical and Pharmacological Sciences, CRIBI, University of Padova; Padova 35131, Italy.
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57
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Drouin G, Catheline D, Sinquin A, Baudry C, Le Ruyet P, Rioux V, Legrand P. Incorporation of Dairy Lipids in the Diet Increased Long-Chain Omega-3 Fatty Acids Status in Post-weaning Rats. Front Nutr 2018; 5:42. [PMID: 29876354 PMCID: PMC5974923 DOI: 10.3389/fnut.2018.00042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/30/2018] [Indexed: 12/15/2022] Open
Abstract
In human nutrition, optimized the status of n-3 long-chain polyunsaturated fatty acids (LCPUFA) and especially docosahexaenoic acid (DHA) during growth appears to be one of the most important goal. We investigated the potential impact of a partial incorporation of dairy lipids (DL) in the diet to increase the n-3 LCPUFA content in tissues, compared to a mixture of vegetable oils. Rats were fed with vegetable oil diet or DL diet, supplemented or not supplemented with DHA, from weaning for 6 weeks. All diets provided the same quantity of 2.3% of total fatty acids of precursor α-linolenic acid. LCPUFA levels in brain, retina, liver, heart, red blood cells and epididymal adipose tissue, Δ-6 desaturase activity and mRNA expression in liver, and plasma cholesterol were measured. Rats fed a DL diet increased their DHA content in brain and retina compared with rats fed a vegetable oil diet and reached the same level than rats directly supplemented with DHA. The status of n-3 docosapentaenoic acid increased with DL diet in heart, red blood cells and liver. The n-3 docosapentaenoic acid specifically discriminated DL diets in the heart. DL diet increased α-linolenic acid content in liver and epididymal adipose tissue, provided specific fatty acids as short- and medium-chain fatty acids and myristic acid, and increased plasma cholesterol. We hypothesized that dairy lipids may increase the n-3 LCPUFA enrichment in tissues by preserving precursor α-linolenic acid from β-mitochondrial oxidation, associated with the presence of short- and medium-chain fatty acids in DL diets. In conclusion, a partial incorporation of dairy lipids in the diet with an adequate α-linolenic acid content improved the n-3 LCPUFA status, especially DHA in brain and retina.
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Affiliation(s)
- Gaetan Drouin
- Laboratory of Biochemistry and Human Nutrition, Agrocampus Ouest - INRA USC1378, Rennes, France
| | - Daniel Catheline
- Laboratory of Biochemistry and Human Nutrition, Agrocampus Ouest - INRA USC1378, Rennes, France
| | - Annaëlle Sinquin
- Laboratory of Biochemistry and Human Nutrition, Agrocampus Ouest - INRA USC1378, Rennes, France
| | | | | | - Vincent Rioux
- Laboratory of Biochemistry and Human Nutrition, Agrocampus Ouest - INRA USC1378, Rennes, France
| | - Philippe Legrand
- Laboratory of Biochemistry and Human Nutrition, Agrocampus Ouest - INRA USC1378, Rennes, France
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58
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Lin YH, Hibbeln JR, Domenichiello AF, Ramsden CE, Salem NM, Chen CT, Jin H, Courville AB, Majchrzak-Hong SF, Rapoport SI, Bazinet RP, Miller BV. Quantitation of Human Whole-Body Synthesis-Secretion Rates of Docosahexaenoic Acid and Eicosapentaenoate Acid from Circulating Unesterified α-Linolenic Acid at Steady State. Lipids 2018; 53:547-558. [PMID: 30074625 PMCID: PMC6105524 DOI: 10.1002/lipd.12055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 06/08/2018] [Accepted: 06/08/2018] [Indexed: 12/27/2022]
Abstract
The rate at which dietary α-linolenic acid (ALA) is desaturated and elongated to its longer-chain n-3 polyunsaturated fatty acid (PUFA) in humans is not agreed upon. In this study, we applied a methodology developed using rodents to investigate the whole-body, presumably hepatic, synthesis-secretion rates of esterified n-3 PUFA from circulating unesterified ALA in 2 healthy overweight women after 10 weeks of low-linoleate diet exposure. During continuous iv infusion of d5-ALA, 17 arterial blood samples were collected from each subject at -10, 0, 10, 20, 40, 60, 80, 100, 120, 150, 180, and 210 min, and at 4, 5, 6, 7, and 8 h after beginning infusion. Plasma esterified d5-n-3 PUFA concentrations were plotted against the infusion time and fit to a sigmoidal curve using nonlinear regression. These curves were used to estimate kinetic parameters using a kinetic analysis developed using rodents. Calculated synthesis-secretion rates of esterified eicosapentaenoate, n-3 docosapentaenoate, docosahexaenoic acid, tetracosapentaenate, and tetracosahexaenoate from circulating unesterified ALA were 2.1 and 2.7; 1.7 and 5.3; 0.47 and 0.27; 0.30 and 0.30; and 0.32 and 0.27 mg/day for subjects S01 and S02, respectively. This study provides new estimates of whole-body synthesis-secretion rates of esterified longer-chain n-3 PUFA from circulating unesterified ALA in human subjects. This method now can be extended to study factors that regulate human whole-body PUFA synthesis-secretion in health and disease.
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Affiliation(s)
- Yu-Hong Lin
- Section of Nutritional Neuroscience, LMBB, DICBR, NIAAA, NIH, U.S.A
| | | | | | - Christopher E. Ramsden
- Lipid Mediator, Inflammation and Pain Unit, Laboratory of Clinical Investigation, NIA, NIH
- DICBR, NIAAA, NIH
- School of Agriculture, Food and Wine, University of Adelaide, Australia
| | | | - Chuck T Chen
- Section of Nutritional Neuroscience, LMBB, DICBR, NIAAA, NIH, U.S.A
| | - Haksong Jin
- Pharmacy Department, NIH Clinical Center, NIH
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59
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Lacombe RS, Kratz RJ, Holub BJ. Directly quantified dietary n-3 fatty acid intakes of Canadian toddlers are lower than current dietary recommendations. Nutr Res 2018; 53:85-91. [DOI: 10.1016/j.nutres.2018.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 02/09/2018] [Accepted: 02/26/2018] [Indexed: 10/17/2022]
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60
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Dewanckele L, Vlaeminck B, Hernandez-Sanabria E, Ruiz-González A, Debruyne S, Jeyanathan J, Fievez V. Rumen Biohydrogenation and Microbial Community Changes Upon Early Life Supplementation of 22:6 n-3 Enriched Microalgae to Goats. Front Microbiol 2018; 9:573. [PMID: 29636742 PMCID: PMC5880937 DOI: 10.3389/fmicb.2018.00573] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 03/13/2018] [Indexed: 12/13/2022] Open
Abstract
Dietary supplementation of docosahexaenoic acid (DHA)-enriched products inhibits the final step of biohydrogenation in the adult rumen, resulting in the accumulation of 18:1 isomers, particularly of trans(t)-11 18:1. Occasionally, a shift toward the formation of t10 intermediates at the expense of t11 intermediates can be triggered. However, whether similar impact would occur when supplementing DHA-enriched products during pregnancy or early life remains unknown. Therefore, the current in vivo study aimed to investigate the effect of a nutritional intervention with DHA in the early life of goat kids on rumen biohydrogenation and microbial community. Delivery of DHA was achieved by supplementing DHA-enriched microalgae (DHA Gold) either to the maternal diet during pregnancy (prenatal) or to the diet of the young offspring (postnatal). At the age of 12 weeks, rumen fluid was sampled for analysis of long-chain fatty acids and microbial community based on bacterial 16S rRNA amplicon sequencing. Postnatal supplementation with DHA-enriched microalgae inhibited the final biohydrogenation step, as observed in adult animals. This resulted particularly in increased ruminal proportions of t11 18:1 rather than a shift to t10 intermediates, suggesting that both young and adult goats might be less prone to dietary induced shifts toward the formation of t10 intermediates, in comparison with cows. Although Butyrivibrio species have been identified as the most important biohydrogenating bacteria, this genus was more abundant when complete biohydrogenation, i.e. 18:0 formation, was inhibited. Blautia abundance was positively correlated with 18:0 accumulation, whereas Lactobacillus spp. Dialister spp. and Bifidobacterium spp. were more abundant in situations with greater t10 accumulation. Extensive comparisons made between current results and literature data indicate that current associations between biohydrogenation intermediates and rumen bacteria in young goats align with former observations in adult ruminants.
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Affiliation(s)
- Lore Dewanckele
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Bruno Vlaeminck
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Emma Hernandez-Sanabria
- Center for Microbial Ecology and Technology, Department of Biochemical and Microbial Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Alexis Ruiz-González
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Sieglinde Debruyne
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.,Animal Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food, Melle, Belgium
| | - Jeyamalar Jeyanathan
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Veerle Fievez
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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61
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Dufour DL, Piperata BA. Reflections on nutrition in biological anthropology. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2018; 165:855-864. [DOI: 10.1002/ajpa.23370] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Darna L. Dufour
- Department of Anthropology, University of Colorado Boulder; Boulder Colorado 80309
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62
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Twining CW, Lawrence P, Winkler DW, Flecker AS, Brenna JT. Conversion efficiency of α-linolenic acid to omega-3 highly unsaturated fatty acids in aerial insectivore chicks. ACTA ACUST UNITED AC 2018; 221:jeb.165373. [PMID: 29217628 DOI: 10.1242/jeb.165373] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Accepted: 12/01/2017] [Indexed: 12/25/2022]
Abstract
Food availability and quality are both critical for growing young animals. In nature, swallows (Tachycineta bicolor) and other aerial insectivores feed on both aquatic insects, which are rich in omega-3 highly unsaturated fatty acids (HUFAs), and terrestrial insects, which contain considerably lower amounts of omega-3 HUFAs. Carnivorous mammals and fishes must obtain omega-3 HUFAs from their diet, as they have lost the capacity to convert the precursor omega-3 α-linolenic acid (ALA) into omega-3 HUFAs. Thus, the relative value of aquatic versus terrestrial insects depends not only on the fatty acid composition of the prey but also on the capacity of consumers to convert ALA into omega-3 HUFAs. We used a combination of stable-isotope-labeled fatty acid tracers to ask whether, and how efficiently, tree swallows can deposit newly synthesized omega-3 HUFAs into tissue. Our data show for the first time that tree swallows can convert ALA into omega-3 HUFAs deposited in liver and skeletal muscle. However, high tree swallow demand for omega-3 HUFAs combined with low ALA availability in natural terrestrial foods may strain their modest conversion ability. This suggests that while tree swallows can synthesize omega-3 HUFAs de novo, omega-3 HUFAs are ecologically essential nutrients in natural systems. Our findings thus provide mechanistic support for our previous findings and the importance of omega-3 HUFA-rich aquatic insects for tree swallows and most likely other aerial insectivores with similar niches.
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Affiliation(s)
- Cornelia W Twining
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
| | - Peter Lawrence
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - David W Winkler
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA.,Museum of Vertebrates and Laboratory of Ornithology, Cornell University, Ithaca, NY 14853, USA
| | - Alexander S Flecker
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
| | - J Thomas Brenna
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA.,University of Texas-Austin, Dell Medical School, Dell Pediatric Research Institute, Austin, TX 78723, USA
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63
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Zhang JY, Qin X, Liang A, Kim E, Lawrence P, Park WJ, Kothapalli KSD, Brenna JT. Fads3 modulates docosahexaenoic acid in liver and brain. Prostaglandins Leukot Essent Fatty Acids 2017; 123:25-32. [PMID: 28838557 PMCID: PMC5609706 DOI: 10.1016/j.plefa.2017.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/29/2017] [Accepted: 07/05/2017] [Indexed: 10/19/2022]
Abstract
Fatty acid desaturase 3 (FADS3) is the third member of the FADS gene cluster. FADS1 and FADS2 code for enzymes required for highly unsaturated fatty acid (HUFA) biosynthesis, but FADS3 function remains elusive. We generated the first Fads3 knockout (KO) mouse with an aim to characterize its metabolic phenotype and clues to in vivo function. All mice (wild type (WT) and KO) were fed facility rodent chow devoid of HUFA. No differences in overt phenotypes (survival, fertility, growth rate) were observed. Docosahexaenoic acid (DHA, 22:6n-3) levels in the brain of postnatal day 1 (P1) KO mice were lower than the WT (P < 0.05). The ratio of docosapentaenoic acid (DPA, 22:5n-3) to DHA in P1 KO liver was higher than in WT suggesting lower desaturase activity. Concomitantly, 20:4n-6 was lower but its elongation product 22:4n-6 was greater in the liver of P1 KO mice. P1 KO liver Fads1 and Fads2 mRNA levels were significantly downregulated whereas expression levels of elongation of very long chain 2 (Elovl2) and Elovl5 genes were upregulated compared to age-matched WT. No Δ13-desaturation of vaccenic acid was observed in liver or heart in WT mice expressing FADS3 as was reported in vitro. Taken together, the fatty acid compositional results suggest that Fads3 enhances liver-mediated 22:6n-3 synthesis to support brain 22:6n-3 accretion before and during the brain growth spurt.
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Affiliation(s)
- Ji Yao Zhang
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Xia Qin
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Allison Liang
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Ellen Kim
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Peter Lawrence
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Woo Jung Park
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
| | | | - J Thomas Brenna
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA.
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64
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Bangia D, Shaffner DW, Palmer-Keenan DM. A Point-of-Purchase Intervention Using Grocery Store Tour Podcasts About Omega-3s Increases Long-Term Purchases of Omega-3-Rich Food Items. JOURNAL OF NUTRITION EDUCATION AND BEHAVIOR 2017; 49:475-480.e1. [PMID: 28377095 DOI: 10.1016/j.jneb.2017.02.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 02/17/2017] [Accepted: 02/28/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To assess the impacts associated with a grocery store tour point-of-purchase intervention using podcasts about omega-3 fatty acid (n-3)-rich food items. DESIGN A repeated-measures secondary data analysis of food purchase records obtained from a convenience sample of shoppers' loyalty cards. PARTICIPANTS Shoppers (n = 251) who had listened to podcasts regarding n-3-rich foods while shopping. MAIN OUTCOME MEASURE(S) The number of omega-3-rich food purchases made according to food or food category by participants determined via spreadsheets obtained from grocery store chain. ANALYSIS Descriptive statistics were performed on demographic characteristics. Wilcoxon signed-rank tests were used to assess whether food purchases increased from 6 months before to 6 months after intervention. Correlations assessed the relationship between intentions to purchase n-3-rich foods expressed on the intervention day with actual long-term n-3-rich food purchases. Nonparametric Kruskal-Wallis ANOVAs and Wilcoxon signed-rank tests were used to analyze differences between changes made and demographic variables (ie, participants' gender, race, and education levels). RESULTS Most shoppers (59%) increased n-3-rich food purchases, with significant mean purchase changes (t[172] = -6.9; P < .001; pre = 0.2 ± 0.7; post = 3.6 ± 5.1). CONCLUSIONS AND IMPLICATIONS Podcasts are promising nutrition education tools. Longer studies could assess whether lasting change results from podcast use.
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Affiliation(s)
| | - Donald W Shaffner
- Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, NJ
| | - Debra M Palmer-Keenan
- Department of Nutritional Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ.
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65
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Galán-Arriero I, Serrano-Muñoz D, Gómez-Soriano J, Goicoechea C, Taylor J, Velasco A, Ávila-Martín G. The role of Omega-3 and Omega-9 fatty acids for the treatment of neuropathic pain after neurotrauma. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1629-1635. [PMID: 28495596 DOI: 10.1016/j.bbamem.2017.05.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/02/2017] [Accepted: 05/04/2017] [Indexed: 12/22/2022]
Abstract
Omega-3 polyunsaturated fatty acids (PUFAs), such as docosaexaenoic acid (DHA) and eicosapentaenoic acid (EPA), mediate neuroactive effects in experimental models of traumatic peripheral nerve and spinal cord injury. Cellular mechanisms of PUFAs include reduced neuroinflammation and oxidative stress, enhanced neurotrophic support, and activation of cell survival pathways. Bioactive Omega-9 monounsaturated fatty acids, such as oleic acid (OA) and 2-hydroxy oleic acid (2-OHOA), also show therapeutic effects in neurotrauma models. These FAs reduces noxious hyperreflexia and pain-related anxiety behavior following peripheral nerve injury and improves sensorimotor function following spinal cord injury (SCI), including facilitation of descending inhibitory antinociception. The relative safe profile of neuroactive fatty acids (FAs) holds promise for the future clinical development of these molecules as analgesic agents. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- Iriana Galán-Arriero
- Sensorimotor Function Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain.
| | - Diego Serrano-Muñoz
- Sensorimotor Function Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain.
| | - Julio Gómez-Soriano
- GIFTO, Nursing and Physiotherapy Faculty, Universidad de Castilla la Mancha, 45072 Toledo, Spain.
| | - Carlos Goicoechea
- Pharmacology and Nutrition Department, Health Sciences Faculty, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain.
| | - Julian Taylor
- Sensorimotor Function Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain; Stoke Mandeville Spinal Research, National Spinal Injuries Centre, Buckinghamshire Healthcare NHS Trust, HP21 8AL Aylesbury, UK; Harris Manchester College, OX1 3TD University of Oxford, UK.
| | - Ana Velasco
- Instituto de Neurociencias de Castilla y León, 37007 Salamanca, Spain.
| | - Gerardo Ávila-Martín
- Sensorimotor Function Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain.
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Continuous gradient temperature Raman spectroscopy and differential scanning calorimetry of N-3DPA and DHA from −100 to 10 °C. Chem Phys Lipids 2017; 204:94-104. [DOI: 10.1016/j.chemphyslip.2017.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/08/2017] [Indexed: 11/21/2022]
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Schönfeld P, Reiser G. Brain energy metabolism spurns fatty acids as fuel due to their inherent mitotoxicity and potential capacity to unleash neurodegeneration. Neurochem Int 2017; 109:68-77. [PMID: 28366720 DOI: 10.1016/j.neuint.2017.03.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 03/20/2017] [Accepted: 03/24/2017] [Indexed: 12/21/2022]
Abstract
The brain uses long-chain fatty acids (LCFAs) to a negligible extent as fuel for the mitochondrial energy generation, in contrast to other tissues that also demand high energy. Besides this generally accepted view, some studies using cultured neural cells or whole brain indicate a moderately active mitochondrial β-oxidation. Here, we corroborate the conclusion that brain mitochondria are unable to oxidize fatty acids. In contrast, the combustion of liver-derived ketone bodies by neural cells is long-known. Furthermore, new insights indicate the use of odd-numbered medium-chain fatty acids as valuable source for maintaining the level of intermediates of the citric acid cycle in brain mitochondria. Non-esterified LCFAs or their activated forms exert a large variety of harmful side-effects on mitochondria, such as enhancing the mitochondrial ROS generation in distinct steps of the β-oxidation and therefore potentially increasing oxidative stress. Hence, the question arises: Why do in brain energy metabolism mitochondria selectively spurn LCFAs as energy source? The most likely answer are the relatively higher content of peroxidation-sensitive polyunsaturated fatty acids and the low antioxidative defense in brain tissue. There are two remarkable peroxisomal defects, one relating to α-oxidation of phytanic acid and the other to uptake of very long-chain fatty acids (VLCFAs) which lead to pathologically high tissue levels of such fatty acids. Both, the accumulation of phytanic acid and that of VLCFAs give an enlightening insight into harmful activities of fatty acids on neural cells, which possibly explain why evolution has prevented brain mitochondria from the equipment with significant β-oxidation enzymatic capacity.
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Affiliation(s)
- Peter Schönfeld
- Institut für Biochemie und Zellbiologie, Medizinische Fakultät, Otto-von-Guericke-Universität Magdeburg, Leipziger Straße 44, D-39120 Magdeburg, Germany
| | - Georg Reiser
- Institut für Inflammation und Neurodegeneration (Neurobiochemie), Medizinische Fakultät, Otto-von-Guericke-Universität Magdeburg, Leipziger Straße 44, D-39120 Magdeburg, Germany.
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68
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Pase CS, Roversi K, Roversi K, Vey LT, Dias VT, Veit JC, Maurer LH, Duarte T, Emanuelli T, Duarte M, Bürger ME. Maternal trans fat intake during pregnancy or lactation impairs memory and alters BDNF and TrkB levels in the hippocampus of adult offspring exposed to chronic mild stress. Physiol Behav 2017; 169:114-123. [DOI: 10.1016/j.physbeh.2016.11.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/26/2016] [Accepted: 11/02/2016] [Indexed: 01/10/2023]
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69
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Dingess KA, Valentine CJ, Ollberding NJ, Davidson BS, Woo JG, Summer S, Peng YM, Guerrero ML, Ruiz-Palacios GM, Ran-Ressler RR, McMahon RJ, Brenna JT, Morrow AL. Branched-chain fatty acid composition of human milk and the impact of maternal diet: the Global Exploration of Human Milk (GEHM) Study. Am J Clin Nutr 2017; 105:177-184. [PMID: 27903517 PMCID: PMC5183722 DOI: 10.3945/ajcn.116.132464] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 10/12/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND An understudied component of the diet, branched-chain fatty acids (BCFAs) are distinctive saturated fatty acids that may have an important influence on health. Human-milk fatty acid composition is known to differ worldwide, but comparative data are lacking on BCFAs. OBJECTIVE We tested the hypotheses that concentrations of BCFAs in human milk differ between populations and are associated with maternal diet. DESIGN We surveyed the BCFA composition of samples collected as part of a standardized, prospective study of human-milk composition. Mothers were enrolled from 3 urban populations with differing diets: Cincinnati, Ohio; Shanghai, China; and Mexico City, Mexico. Enrollment was limited to healthy mothers of term singleton infants. We undertook a cross-sectional analysis of milk from all women with samples at postpartum week 4 (n = 359; ∼120 women/site). Fatty acids were extracted from milk by using a modified Bligh-Dyer technique and analyzed by gas chromatography. Statistical analysis was performed by ANOVA and Tobit regression. For Cincinnati mothers, 24-h diet recalls were analyzed in relation to the individual BCFA concentrations measured in milk samples. RESULTS Total BCFAs in milk differed by site, with the highest concentration in Cincinnati followed by Mexico City and Shanghai (mean ± SE: 7.90 ± 0.41, 6.10 ± 0.36, and 4.27 ± 0.25 mg/100 mL, respectively; P < 0.001). Site differences persisted after delivery mode, maternal age, and body mass index were controlled for. The individual concentrations of iso-14:0, iso-16:0, iso-18:0, anteiso-15:0, and anteiso-17:0 also differed between sites. Milk concentrations of iso-14:0 and anteiso-15:0 were associated with maternal intake of dairy; iso-16:0 was associated with maternal intakes of dairy and beef. CONCLUSIONS BCFA concentrations in milk at 4 wk postpartum differed between mothers from Cincinnati, Shanghai, and Mexico City. Variations in human-milk BCFAs are influenced by diet. The impact of BCFAs on infant health warrants investigation.
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Affiliation(s)
- Kelly A Dingess
- The Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Christina J Valentine
- The Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; .,Mead Johnson Nutrition Inc., Evansville, IN; Divisions of
| | | | - Barbara S Davidson
- The Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | | | - Suzanne Summer
- Clinical Translational Research Center, Cincinnati Children’s, Cincinnati, OH
| | | | - M Lourdes Guerrero
- National Institute of Medical Sciences and Nutrition, Mexico City, Mexico; and
| | | | | | | | | | - Ardythe L Morrow
- The Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
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Domenichiello AF, Kitson AP, Metherel AH, Chen CT, Hopperton KE, Stavro PM, Bazinet RP. Whole-Body Docosahexaenoic Acid Synthesis-Secretion Rates in Rats Are Constant across a Large Range of Dietary α-Linolenic Acid Intakes. J Nutr 2017; 147:37-44. [PMID: 27852871 DOI: 10.3945/jn.116.232074] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/22/2016] [Accepted: 10/18/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Docosahexaenoic acid (DHA) is an ω-3 (n-3) polyunsaturated fatty acid (PUFA) thought to be important for brain function. Although the main dietary source of DHA is fish, DHA can also be synthesized from α-linolenic acid (ALA), which is derived from plants. Enzymes involved in DHA synthesis are also active toward ω-6 (n-6) PUFAs to synthesize docosapentaenoic acid n-6 (DPAn-6). It is unclear whether DHA synthesis from ALA is sufficient to maintain brain DHA. OBJECTIVE The objective of this study was to determine how different amounts of dietary ALA would affect whole-body DHA and DPAn-6 synthesis rates. METHODS Male Long-Evans rats were fed an ALA-deficient diet (ALA-D), an ALA-adequate (ALA-A) diet, or a high-ALA (ALA-H) diet for 8 wk from weaning. Dietary ALA concentrations were 0.07%, 3%, and 10% of the fatty acids, and ALA was the only dietary PUFA that differed between the diets. After 8 wk, steady-state stable isotope infusion of labeled ALA and linoleic acid (LA) was performed to determine the in vivo synthesis-secretion rates of DHA and DPAn-6. RESULTS Rats fed the ALA-A diet had an ∼2-fold greater capacity to synthesize DHA than did rats fed the ALA-H and ALA-D diets, and a DHA synthesis rate that was similar to that of rats fed the ALA-H diet. However, rats fed the ALA-D diet had a 750% lower DHA synthesis rate than rats fed the ALA-A and ALA-H diets. Despite enrichment into arachidonic acid, we did not detect any labeled LA appearing as DPAn-6. CONCLUSIONS Increasing dietary ALA from 3% to 10% of fatty acids did not increase DHA synthesis rates, because of a decreased capacity to synthesize DHA in rats fed the ALA-H diet. Tissue concentrations of DPAn-6 may be explained at least in part by longer plasma half-lives.
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Affiliation(s)
| | - Alex P Kitson
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; and
| | - Adam H Metherel
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; and
| | - Chuck T Chen
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; and
| | - Kathryn E Hopperton
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; and
| | | | - Richard P Bazinet
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; and
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Xiao S, Wang P, Dong L, Zhang Y, Han Z, Wang Q, Wang Z. Whole-genome single-nucleotide polymorphism (SNP) marker discovery and association analysis with the eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content in Larimichthys crocea. PeerJ 2016; 4:e2664. [PMID: 28028455 PMCID: PMC5180582 DOI: 10.7717/peerj.2664] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 10/07/2016] [Indexed: 12/30/2022] Open
Abstract
Whole-genome single-nucleotide polymorphism (SNP) markers are valuable genetic resources for the association and conservation studies. Genome-wide SNP development in many teleost species are still challenging because of the genome complexity and the cost of re-sequencing. Genotyping-By-Sequencing (GBS) provided an efficient reduced representative method to squeeze cost for SNP detection; however, most of recent GBS applications were reported on plant organisms. In this work, we used an EcoRI-NlaIII based GBS protocol to teleost large yellow croaker, an important commercial fish in China and East-Asia, and reported the first whole-genome SNP development for the species. 69,845 high quality SNP markers that evenly distributed along genome were detected in at least 80% of 500 individuals. Nearly 95% randomly selected genotypes were successfully validated by Sequenom MassARRAY assay. The association studies with the muscle eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content discovered 39 significant SNP markers, contributing as high up to ∼63% genetic variance that explained by all markers. Functional genes that involved in fat digestion and absorption pathway were identified, such as APOB, CRAT and OSBPL10. Notably, PPT2 Gene, previously identified in the association study of the plasma n-3 and n-6 polyunsaturated fatty acid level in human, was re-discovered in large yellow croaker. Our study verified that EcoRI-NlaIII based GBS could produce quality SNP markers in a cost-efficient manner in teleost genome. The developed SNP markers and the EPA and DHA associated SNP loci provided invaluable resources for the population structure, conservation genetics and genomic selection of large yellow croaker and other fish organisms.
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Affiliation(s)
- Shijun Xiao
- Fisheries College, Jimei University, Xiamen, Fujian, China
| | - Panpan Wang
- Fisheries College, Jimei University, Xiamen, Fujian, China
| | - Linsong Dong
- Fisheries College, Jimei University, Xiamen, Fujian, China
| | - Yaguang Zhang
- Fisheries College, Jimei University, Xiamen, Fujian, China
| | - Zhaofang Han
- Fisheries College, Jimei University, Xiamen, Fujian, China
| | - Qiurong Wang
- Fisheries College, Jimei University, Xiamen, Fujian, China
| | - Zhiyong Wang
- Fisheries College, Jimei University, Xiamen, Fujian, China
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How essential fats affect bird performance and link aquatic ecosystems and terrestrial consumers. Proc Natl Acad Sci U S A 2016; 113:11988-11990. [PMID: 27790978 DOI: 10.1073/pnas.1614106113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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73
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Ramakrishnan U, Gonzalez-Casanova I, Schnaas L, DiGirolamo A, Quezada AD, Pallo BC, Hao W, Neufeld LM, Rivera JA, Stein AD, Martorell R. Prenatal supplementation with DHA improves attention at 5 y of age: a randomized controlled trial. Am J Clin Nutr 2016; 104:1075-1082. [PMID: 27604770 PMCID: PMC5039806 DOI: 10.3945/ajcn.114.101071] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 07/28/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Docosahexanoic acid (DHA) is an important constituent of the brain. Evidence from well-designed intervention trials of the long-term benefits of increasing DHA intake during pregnancy has been sparse. OBJECTIVE We evaluated global cognition, behavior, and attention at age 5 y in the offspring of Mexican women who participated in a randomized controlled trial of prenatal DHA supplementation. DESIGN A total of 1094 women were randomly assigned to receive 400 mg of either DHA or placebo/d from 18 to 22 wk of pregnancy until delivery. We assessed cognitive development and behavioral and executive functioning, including attention, in 797 offspring at age 5 y (82% of 973 live births) with the use of the McCarthy Scales of Children's Abilities (MSCA), the parental scale of the Behavioral Assessment System for Children, Second Edition (BASC-2), and the Conners' Kiddie Continuous Performance Test (K-CPT). We compared the groups on raw scores, T-scores, and standardized scores, as appropriate. We examined heterogeneity by the quality of the home environment, maternal intelligence, and socioeconomic status. RESULTS There were no group differences for MSCA scores (P > 0.05), but the positive effect of the home environment at 12 mo on general cognitive abilities was attenuated in the DHA group compared with in the placebo group (P-interaction < 0.05). There were no differences between groups on the BASC-2. On the K-CPT, offspring in the DHA group showed improved mean ± SD T-scores compared with those of the placebo group for omissions (DHA: 47.6 ± 10.3; placebo: 49.6 ± 11.2; P < 0.01) with no differences (P > 0.05) for the other K-CPT scores or of the proportion who were clinically at risk of attention deficit hyperactivity disorders after Bonferroni correction for multiple comparisons. CONCLUSION Prenatal exposure to DHA may contribute to improved sustained attention in preschool children. This trial was registered at clinicaltrials.gov as NCT00646360.
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Affiliation(s)
- Usha Ramakrishnan
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA;
| | - Ines Gonzalez-Casanova
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Lourdes Schnaas
- Division of Public Health, National Institute of Perinatology, Mexico City, Mexico
| | - Ann DiGirolamo
- Center of Excellence for Children's Behavioral Health, Georgia Health Policy Center, Georgia State University, Atlanta, GA
| | - Amado D Quezada
- Health and Nutrition Research Center, National Institute of Public Health, Cuernavaca, Mexico; and
| | - Beth C Pallo
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Wei Hao
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA
| | | | - Juan A Rivera
- Health and Nutrition Research Center, National Institute of Public Health, Cuernavaca, Mexico; and
| | - Aryeh D Stein
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Reynaldo Martorell
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA
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Continuous gradient temperature Raman spectroscopy of N-6DPA and DHA from −100 to 20 °C. Chem Phys Lipids 2016; 200:1-10. [DOI: 10.1016/j.chemphyslip.2016.06.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/10/2016] [Accepted: 06/11/2016] [Indexed: 01/03/2023]
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75
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Wolfrum S, Marcus J, Touraud D, Kunz W. A renaissance of soaps? - How to make clear and stable solutions at neutral pH and room temperature. Adv Colloid Interface Sci 2016; 236:28-42. [PMID: 27476328 DOI: 10.1016/j.cis.2016.07.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/14/2016] [Accepted: 07/14/2016] [Indexed: 01/06/2023]
Abstract
Soaps are the oldest and perhaps most natural surfactants. However, they lost much of their importance since "technical surfactants", usually based on sulfates or sulfonates, have been developed over the last fifty years. Indeed, soaps are pH- and salt-sensitive and they are irritant, especially to the eyes. In food emulsions, although authorized, they have a bad taste, and long-chain saturated soaps have a high Krafft temperature. We believe that most or perhaps all of these problems can be solved with modern formulation approaches. We start this paper with a short overview of our present knowledge of soaps and soap formulations. Then we focus on the problem of the lacking soap solubility at neutral pH values. For example, it is well known that with the food emulsifier sodium oleate (NaOl), clear and stable aqueous solutions can only be obtained at pH values higher than 10. A decrease in the pH value leads to turbid and unstable solutions. This effect is not compatible with the formulation of aqueous stable and drinkable formulations with neutral or even acidic pH values. However, the pH value/phase behavior of aqueous soap solutions can be altered by the addition of other surfactants. Such a surfactant can be Rebaudioside A (RebA), a steviol glycoside from the plant Stevia rebaudiana which is used as a natural food sweetener. In a recent paper, we showed the influence of RebA on the apKa value of sodium oleate in a beverage microemulsion and on its clearing temperature. In the present paper, we report on the effect of the edible bio-surfactant RebA, on the macroscopic and microscopic phase behavior of simple aqueous sodium oleate solutions at varying pH values. The macroscopic phase behavior is investigated by visual observation and turbidity measurements. The microscopic phase behavior is analyzed by acid-base titration curves, phase-contrast and electron microscopy. It turned out that even at neutral pH, aqueous NaOl/RebA solutions can be completely clear and stable for more than 50days at room temperature. This is for the first time that a long chain soap could be really solubilized in water at neutral pH at room temperature. At last, these findings were applied to prepare stable, highly translucent and drinkable aqueous solutions of omega-3-fatty acids at a pH value of 7.5.
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76
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Schipper L, Oosting A, Scheurink AJW, van Dijk G, van der Beek EM. Reducing dietary intake of linoleic acid of mouse dams during lactation increases offspring brain n-3 LCPUFA content. Prostaglandins Leukot Essent Fatty Acids 2016; 110:8-15. [PMID: 27255638 DOI: 10.1016/j.plefa.2016.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/24/2016] [Accepted: 05/02/2016] [Indexed: 01/03/2023]
Abstract
Omega (n-)3 and n-6 long chain polyunsaturated fatty acids (LCPUFA) accumulation in the infant brain after birth is strongly driven by dietary supply of n-3 and n-6 LCPUFAs and their C18 precursors through breast milk or infant formula. n-3 LCPUFA accretion is associated with positive effects on neurodevelopmental outcome whereas high n-6 LCPUFA accumulation is considered disadvantageous. Maternal diet is crucial for breast milk fatty acid composition. Unfortunately, global increases in linoleic acid (C18:2n-6; LA) intake have dramatically increased n-6 LCPUFA and reduced n-3 LCPUFA availability for breastfed infants. We investigated the effects of reducing maternal dietary LA, or increasing n-3 LCPUFA, during lactation on milk and offspring brain fatty acids in mice. Offspring brain n-3 LCPUFA was higher following both interventions, although effects were mediated by different mechanisms. Because of competitive interactions between n-3 and n-6 fatty acids, lowering maternal LA intake may support neurodevelopment in breastfed infants.
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Affiliation(s)
- L Schipper
- Nutricia Research, Danone Nutricia Early Life Nutrition, Utrecht, The Netherlands.
| | - A Oosting
- Nutricia Research, Danone Nutricia Early Life Nutrition, Utrecht, The Netherlands
| | - A J W Scheurink
- GELIFES, Groningen Institute for Evolutionary Life Sciences, University of Groningen, The Netherlands
| | - G van Dijk
- GELIFES, Groningen Institute for Evolutionary Life Sciences, University of Groningen, The Netherlands
| | - E M van der Beek
- Nutricia Research, Danone Nutricia Early Life Nutrition, Utrecht, The Netherlands
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77
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Di Nunzio M, Valli V, Bordoni A. PUFA and oxidative stress. Differential modulation of the cell response by DHA. Int J Food Sci Nutr 2016; 67:834-43. [PMID: 27353954 DOI: 10.1080/09637486.2016.1201790] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Although an increased dietary intake of long-chain n-3 PUFA is considered an effective preventive strategy, a theoretical concern related to the possible increase of lipid peroxidation induced by a PUFA-rich diet still remains a problem. In this study, the effects of different PUFA (linoleic, α-linolenic, arachidonic, eicosapentaenoic and docosahexaenoic acid) on cytotoxicity, lipid oxidation, and modulation of antioxidant defenses were evaluated in HepG2 cells submitted to an oxidative stress (H2O2). Results clearly evidenced that all supplemented PUFA, but DHA, enhanced cell susceptibility to H2O2. Overall, our results underline that PUFA cannot be considered as a single category but as individual compounds, and research on mechanisms of action and preventive effects should deal with the individual fatty acids, particularly in the case of DHA.
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Affiliation(s)
- Mattia Di Nunzio
- a Interdepartmental Centre for Industrial Agri-Food Research , University of Bologna , Cesena (FC), Italy
| | - Veronica Valli
- b Department of Agri-Food Science and Technology , University of Bologna , Cesena (FC), Italy
| | - Alessandra Bordoni
- a Interdepartmental Centre for Industrial Agri-Food Research , University of Bologna , Cesena (FC), Italy ;,b Department of Agri-Food Science and Technology , University of Bologna , Cesena (FC), Italy
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78
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Mouritsen OG. Deliciousness of food and a proper balance in fatty acid composition as means to improve human health and regulate food intake. ACTA ACUST UNITED AC 2016. [DOI: 10.1186/s13411-016-0048-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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79
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Demmelmair H, Kuhn A, Dokoupil K, Hegele V, Sauerwald T, Koletzko B. Human lactation: oxidation and maternal transfer of dietary (13)C-labelled α-linolenic acid into human milk. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2016; 52:270-280. [PMID: 26444910 DOI: 10.1080/10256016.2015.1071362] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/15/2015] [Indexed: 06/05/2023]
Abstract
The origin of fatty acids in milk has not been elucidated in detail. We investigated the contribution of dietary α-linolenic acid (ALA) to human milk fat, its oxidation and endogenous conversion to long-chain polyunsaturated fatty acids. Ten lactating women were given (13)C-ALA orally, and breath and milk samples were collected for a five-day period, while dietary intakes were assessed. 37.5 ± 2.7 % (M ± SE) of the tracer was recovered in breath-CO2, and 7.3 ± 1.1 % was directly transferred into milk. About 0.25 % of the tracer was found in milk long-chain polyunsaturated fatty acids. Combining intake and milk data, we estimate that about 65 % of milk ALA is directly derived from maternal diet. Thus, the major portion of milk ALA is directly derived from the diet, but dietary ALA does not seem to contribute much as a precursor to milk n-3 long-chain polyunsaturated fatty acids within the studied time period.
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Affiliation(s)
- Hans Demmelmair
- a Division of Metabolic and Nutritional Medicine , Dr. von Hauner Children's Hospital, University of Munich Medical Center , Munich , Germany
| | - Angelika Kuhn
- a Division of Metabolic and Nutritional Medicine , Dr. von Hauner Children's Hospital, University of Munich Medical Center , Munich , Germany
| | - Katharina Dokoupil
- a Division of Metabolic and Nutritional Medicine , Dr. von Hauner Children's Hospital, University of Munich Medical Center , Munich , Germany
| | - Verena Hegele
- a Division of Metabolic and Nutritional Medicine , Dr. von Hauner Children's Hospital, University of Munich Medical Center , Munich , Germany
| | - Thorsten Sauerwald
- a Division of Metabolic and Nutritional Medicine , Dr. von Hauner Children's Hospital, University of Munich Medical Center , Munich , Germany
| | - Berthold Koletzko
- a Division of Metabolic and Nutritional Medicine , Dr. von Hauner Children's Hospital, University of Munich Medical Center , Munich , Germany
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80
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Judge MP, Casavant SG, Dias JAM, McGrath JM. Reduced DHA transfer in diabetic pregnancies: mechanistic basis and long-term neurodevelopmental implications. Nutr Rev 2016; 74:411-20. [PMID: 27142302 DOI: 10.1093/nutrit/nuw006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Infants born to diabetic mothers have a higher frequency of impaired neurodevelopment. The omega-3 or n-3 fatty acid docosahexaenoic acid (DHA) is an important structural component of neural tissue and is critical for fetal brain development. Maternal DHA supplementation during pregnancy is linked to better infant neurodevelopment; however, maternal-fetal transfer of DHA is reduced in women with diabetes. Evidence of mechanisms explaining altered maternal-fetal DHA transfer in this population is limited. This review explores existing evidence underpinning reduced maternal-fetal DHA transfer in maternal fuel metabolism in this population. Further research is necessary to evaluate the role of peroxisome proliferator-activated receptors in modulating placental fatty acid binding and maternal-fetal DHA transfer. Considerations for clinical practice include a diet high in DHA and/or provision of supplemental DHA to obstetric diabetic patients within minimum guidelines.
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Affiliation(s)
- Michelle P Judge
- M.P Judge, S.G. Casavant, J.A.M. Dias, and J.M. McGrath are with the University of Connecticut, School of Nursing, Storrs, Connecticut, USA. J.M. McGrath and S.G. Casavant are with the Connecticut Children's Medical Center, Hartford, Connecticut, USA.J.A.M. Dias is with the Nursing Department, Federal University of Ceará, Fortaleza Ceará, Brazil.
| | - Sharon G Casavant
- M.P Judge, S.G. Casavant, J.A.M. Dias, and J.M. McGrath are with the University of Connecticut, School of Nursing, Storrs, Connecticut, USA. J.M. McGrath and S.G. Casavant are with the Connecticut Children's Medical Center, Hartford, Connecticut, USA.J.A.M. Dias is with the Nursing Department, Federal University of Ceará, Fortaleza Ceará, Brazil
| | - Juliana A M Dias
- M.P Judge, S.G. Casavant, J.A.M. Dias, and J.M. McGrath are with the University of Connecticut, School of Nursing, Storrs, Connecticut, USA. J.M. McGrath and S.G. Casavant are with the Connecticut Children's Medical Center, Hartford, Connecticut, USA.J.A.M. Dias is with the Nursing Department, Federal University of Ceará, Fortaleza Ceará, Brazil
| | - Jacqueline M McGrath
- M.P Judge, S.G. Casavant, J.A.M. Dias, and J.M. McGrath are with the University of Connecticut, School of Nursing, Storrs, Connecticut, USA. J.M. McGrath and S.G. Casavant are with the Connecticut Children's Medical Center, Hartford, Connecticut, USA.J.A.M. Dias is with the Nursing Department, Federal University of Ceará, Fortaleza Ceará, Brazil
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81
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Duttaroy AK. Docosahexaenoic acid supports feto-placental growth and protects cardiovascular and cognitive function: A mini review. EUR J LIPID SCI TECH 2016. [DOI: 10.1002/ejlt.201500496] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Asim K. Duttaroy
- Faculty of Medicine, Department of Nutrition; Institute of Basic Medical Sciences; University of Oslo; Norway
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82
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Zhang JY, Kothapalli KS, Brenna JT. Desaturase and elongase-limiting endogenous long-chain polyunsaturated fatty acid biosynthesis. Curr Opin Clin Nutr Metab Care 2016; 19:103-10. [PMID: 26828581 PMCID: PMC4768719 DOI: 10.1097/mco.0000000000000254] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Endogenous synthesis of the long-chain polyunsaturated fatty acids (LCPUFAs) is mediated by the fatty acid desaturase (FADS) gene cluster (11q12-13.1) and elongation of very long-chain fatty acids 2 (ELOVL2) (6p24.2) and ELOVL5 (6p12.1). Although older biochemical work identified the product of one gene, FADS2, rate limiting for LCPUFA synthesis, recent studies suggest that polymorphisms in any of these genes can limit accumulation of product LCPUFA. RECENT FINDINGS Genome-wide association study (GWAS) of Greenland Inuit shows strong adaptation signals within FADS gene cluster, attributed to high omega-3 fatty acid intake, while GWAS found ELOVL2 associated with sleep duration, age and DNA methylation. ELOVL5 coding mutations cause spinocerebellar ataxia 38, and epigenetic marks were associated with depression and suicide risk. Two sterol response element binding sites were found on ELOVL5, a SREBP-1c target gene. Minor allele carriers of a 3 single nucleotide polymorphism (SNP) haplotype in ELOVL2 have decreased 22 : 6n-3 levels. Unequivocal molecular evidence shows mammalian FADS2 catalyzes direct Δ4-desaturation to yield 22 : 6n-3 and 22 : 5n-6. An SNP near FADS1 influences the levels of 5-lipoxygenase products and epigenetic alteration. SUMMARY Genetic polymorphisms within FADS and ELOVL can limit LCPUFA product accumulation at any step of the biosynthetic pathway.
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Affiliation(s)
| | | | - J. Thomas Brenna
- Corresponding author: J. Thomas Brenna, voice (607) 255-9182, fax (607) 255-1033,
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83
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Weiser MJ, Mucha B, Denheyer H, Atkinson D, Schanz N, Vassiliou E, Benno RH. Dietary docosahexaenoic acid alleviates autistic-like behaviors resulting from maternal immune activation in mice. Prostaglandins Leukot Essent Fatty Acids 2016; 106:27-37. [PMID: 26703213 DOI: 10.1016/j.plefa.2015.10.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/30/2015] [Accepted: 10/30/2015] [Indexed: 10/22/2022]
Abstract
The prevalence of autism spectrum disorders over the last several decades has risen at an alarming rate. Factors such as broadened clinical definitions and increased parental age only partially account for this precipitous increase, suggesting that recent changes in environmental factors may also be responsible. One such factor could be the dramatic decrease in consumption of anti-inflammatory dietary omega-3 (n-3) polyunsaturated fatty acids (PUFAs) relative to the amount of pro-inflammatory omega-6 (n-6) PUFAs and saturated fats in the Western diet. Docosahexaenoic acid (DHA) is the principle n-3 PUFA found in neural tissue and is important for optimal brain development, especially during late gestation when DHA rapidly and preferentially accumulates in the brain. In this study, we tested whether supplementation of a low n-3 PUFA diet with DHA throughout development could improve measures related to autism in a mouse model of maternal immune activation. We found that dietary DHA protected offspring from the deleterious effects of gestational exposure to the viral mimetic polyriboinosinic-polyribocytidilic acid on behavioral measures of autism and subsequent adulthood immune system reactivity. These data suggest that elevated dietary levels of DHA, especially during pregnancy and nursing, may help protect normal neurodevelopment from the potentially adverse consequences of environmental insults like maternal infection.
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Affiliation(s)
- Michael J Weiser
- DSM Nutritional Products, Human Nutrition and Health, Boulder, CO, United States.
| | - Brittany Mucha
- William Paterson University, Dept. of Biology, Wayne, NJ, United States
| | - Heather Denheyer
- William Paterson University, Dept. of Biology, Wayne, NJ, United States
| | - Devon Atkinson
- William Paterson University, Dept. of Biology, Wayne, NJ, United States
| | - Norman Schanz
- William Paterson University, Dept. of Biology, Wayne, NJ, United States
| | - Evros Vassiliou
- Kean University, Dept. of Biological Sciences, Union, NJ, United States
| | - Robert H Benno
- William Paterson University, Dept. of Biology, Wayne, NJ, United States
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84
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Twining CW, Brenna JT, Hairston NG, Flecker AS. Highly unsaturated fatty acids in nature: what we know and what we need to learn. OIKOS 2015. [DOI: 10.1111/oik.02910] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Cornelia W. Twining
- Dept of Ecology and Evolutionary Biology; Cornell Univ.; Corson Hall, 215 Tower Road Ithaca NY 14853 USA
| | - J. Thomas Brenna
- Division of Nutritional Science; Cornell Univ.; Ithaca NY 14853 USA
| | - Nelson G. Hairston
- Dept of Ecology and Evolutionary Biology; Cornell Univ.; Ithaca NY 14853 USA
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85
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Hardy K, Brand-Miller J, Brown KD, Thomas MG, Copeland L. The Importance of Dietary Carbohydrate in Human Evolution. QUARTERLY REVIEW OF BIOLOGY 2015; 90:251-68. [DOI: 10.1086/682587] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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86
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Clouard C, Souza AS, Gerrits WJ, Hovenier R, Lammers A, Bolhuis JE. Maternal Fish Oil Supplementation Affects the Social Behavior, Brain Fatty Acid Profile, and Sickness Response of Piglets. J Nutr 2015; 145:2176-84. [PMID: 26180250 DOI: 10.3945/jn.115.214650] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/24/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Maternal dietary docosahexaenoic acid (DHA) intake is thought to affect development in the offspring. OBJECTIVE We assessed the impact of maternal dietary DHA on behavior, brain fatty acid (FA) profile, and sickness response of offspring in pigs, a pertinent model for human nutrition. METHODS Sows (n = 24) were fed a diet with DHA-rich fish oil (FO) (20 g/kg) or high-oleic acid sunflower oil (HOSF) (20 g/kg) from day 61 of gestation through lactation. At 4 wk of age, 4 piglets per litter were weaned and mixed with piglets from other litters. Behavior was observed in 4- to 8-wk-old piglets, and brain FA composition was analyzed at 4 (n = 15) and 14 (n = 12) wk. Thirteen-week-old piglets (n = 48) were subjected to a lipopolysaccharide (LPS) challenge. Body temperature, plasma cytokines, and motivation to approach a familiar human, indicative of a sickness response, were measured. RESULTS FO-fed pigs displayed more social activities (+262%, P = 0.02), played more (+61%, P = 0.03), and tended to show fewer oral manipulative behaviors directed at pen mates (-25%, P = 0.06) than did HOSF-fed pigs up to 4 wk after weaning. Brain DHA concentrations were higher in FO- than in HOSF-fed pigs up to 10 wk after supplementation (+10-50%, P < 0.001), although differences declined with age. Body temperature (P < 0.001) and tumor necrosis factor α and interferon γ concentrations (P < 0.05) increased after LPS injection, but no diet effect was found (P > 0.10). LPS-treated pigs were less likely to approach the human than saline-treated pigs in the HOSF-fed (-29%, P = 0.0003), but not in the FO-fed group (-13%, P = 0.11). CONCLUSIONS Maternal DHA beneficially affected offspring social behavior after weaning and mildly attenuated sickness behavior after an inflammatory challenge in pigs. These behavioral changes may be mediated by increased brain DHA proportions.
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Affiliation(s)
| | - Adriana S Souza
- Adaptation Physiology Group and Animal Nutrition Group, Department of Animal Sciences, Wageningen University, Wageningen, Netherlands
| | - Walter Jj Gerrits
- Animal Nutrition Group, Department of Animal Sciences, Wageningen University, Wageningen, Netherlands
| | - Robert Hovenier
- Animal Nutrition Group, Department of Animal Sciences, Wageningen University, Wageningen, Netherlands
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87
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Interesterified fat or palm oil as substitutes for partially hydrogenated fat during the perinatal period produces changes in the brain fatty acids profile and increases leukocyte–endothelial interactions in the cerebral microcirculation from the male offspring in adult life. Brain Res 2015; 1616:123-33. [DOI: 10.1016/j.brainres.2015.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 04/29/2015] [Accepted: 05/01/2015] [Indexed: 01/12/2023]
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88
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Sistiaga A, Wrangham R, Rothman JM, Summons RE. New Insights into the Evolution of the Human Diet from Faecal Biomarker Analysis in Wild Chimpanzee and Gorilla Faeces. PLoS One 2015; 10:e0128931. [PMID: 26061730 PMCID: PMC4465628 DOI: 10.1371/journal.pone.0128931] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 05/01/2015] [Indexed: 01/19/2023] Open
Abstract
Our understanding of early human diets is based on reconstructed biomechanics of hominin jaws, bone and teeth isotopic data, tooth wear patterns, lithic, taphonomic and zooarchaeological data, which do not provide information about the relative amounts of different types of foods that contributed most to early human diets. Faecal biomarkers are proving to be a valuable tool in identifying relative proportions of plant and animal tissues in Palaeolithic diets. A limiting factor in the application of the faecal biomarker approach is the striking absence of data related to the occurrence of faecal biomarkers in non-human primate faeces. In this study we explored the nature and proportions of sterols and stanols excreted by our closest living relatives. This investigation reports the first faecal biomarker data for wild chimpanzee (Pan troglodytes) and mountain gorilla (Gorilla beringei). Our results suggest that the chemometric analysis of faecal biomarkers is a useful tool for distinguishing between NHP and human faecal matter, and hence, it could provide information for palaeodietary research and early human diets.
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Affiliation(s)
- Ainara Sistiaga
- Massachusetts Institute of Technology, Cambridge, United States of America
- Universidad de La Laguna, La Laguna, Spain
| | | | | | - Roger E. Summons
- Massachusetts Institute of Technology, Cambridge, United States of America
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89
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Jones KDJ, Ali R, Khasira MA, Odera D, West AL, Koster G, Akomo P, Talbert AWA, Goss VM, Ngari M, Thitiri J, Ndoro S, Knight MAG, Omollo K, Ndungu A, Mulongo MM, Bahwere P, Fegan G, Warner JO, Postle AD, Collins S, Calder PC, Berkley JA. Ready-to-use therapeutic food with elevated n-3 polyunsaturated fatty acid content, with or without fish oil, to treat severe acute malnutrition: a randomized controlled trial. BMC Med 2015; 13:93. [PMID: 25902844 PMCID: PMC4407555 DOI: 10.1186/s12916-015-0315-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 03/09/2015] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Ready-to-use therapeutic foods (RUTF) are lipid-based pastes widely used in the treatment of acute malnutrition. Current specifications for RUTF permit a high n-6 polyunsaturated fatty acid (PUFA) content and low n-3 PUFA, with no stipulated requirements for preformed long-chain n-3 PUFA. The objective of this study was to develop an RUTF with elevated short-chain n-3 PUFA and measure its impact, with and without fish oil supplementation, on children's PUFA status during treatment of severe acute malnutrition. METHODS This randomized controlled trial in children with severe acute malnutrition in rural Kenya included 60 children aged 6 to 50 months who were randomized to receive i) RUTF with standard composition; ii) RUTF with elevated short chain n-3 PUFA; or iii) RUTF with elevated short chain n-3 PUFA plus fish oil capsules. Participants were followed-up for 3 months. The primary outcome was erythrocyte PUFA composition. RESULTS Erythrocyte docosahexaenoic acid (DHA) content declined from baseline in the two arms not receiving fish oil. Erythrocyte long-chain n-3 PUFA content following treatment was significantly higher for participants in the arm receiving fish oil than for those in the arms receiving RUTF with elevated short chain n-3 PUFA or standard RUTF alone: 3 months after enrollment, DHA content was 6.3% (interquartile range 6.0-7.3), 4.5% (3.9-4.9), and 3.9% (2.4-5.7) of total erythrocyte fatty acids (P <0.001), respectively, while eicosapentaenoic acid (EPA) content was 2.0% (1.5-2.6), 0.7% (0.6-0.8), and 0.4% (0.3-0.5) (P <0.001). RUTF with elevated short chain n-3 PUFA and fish oil capsules were acceptable to participants and carers, and there were no significant differences in safety outcomes. CONCLUSIONS PUFA requirements of children with SAM are not met by current formulations of RUTF, or by an RUTF with elevated short-chain n-3 PUFA without additional preformed long-chain n-3 PUFA. Clinical and growth implications of revised formulations need to be addressed in large clinical trials. TRIAL REGISTRATION Clinicaltrials.gov NCT01593969. Registered 4 May 2012.
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Affiliation(s)
- Kelsey D J Jones
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
- Centre for Global Health Research and Section of Paediatrics, Imperial College, Norfolk Place, London, W2 1PG, UK.
| | - Rehema Ali
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
| | | | - Dennis Odera
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
| | - Annette L West
- Faculty of Medicine, University of Southampton, Southampton General Hosptial, Tremona Road, Southampton, SO16 6YD, UK.
| | - Grielof Koster
- Faculty of Medicine, University of Southampton, Southampton General Hosptial, Tremona Road, Southampton, SO16 6YD, UK.
| | - Peter Akomo
- Valid Nutrition, Cuibín Farm, Derry Duff, Bantry, Co., Cork, Republic of Ireland.
| | | | - Victoria M Goss
- Southampton National Institute of Health Research Respiratory Biomedical Research Unit, Southampton General Hosptial, Tremona Road, Southampton, SO16 6YD, UK.
| | - Moses Ngari
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
| | | | - Said Ndoro
- Kilifi County Hospital, Ministry of Health, Kilifi, 230-80108, Kenya.
| | - Miguel A Garcia Knight
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
- Nuffield Department of Clinical Medicine, Centre for Tropical Medicine & Global Health, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.
| | - Kenneth Omollo
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
| | - Anne Ndungu
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
| | - Musa M Mulongo
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
| | - Paluku Bahwere
- Valid International, 35 Leopold Street, Oxford, OX4 1TW, UK.
| | - Greg Fegan
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
- Nuffield Department of Clinical Medicine, Centre for Tropical Medicine & Global Health, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.
| | - John O Warner
- Centre for Global Health Research and Section of Paediatrics, Imperial College, Norfolk Place, London, W2 1PG, UK.
| | - Anthony D Postle
- Faculty of Medicine, University of Southampton, Southampton General Hosptial, Tremona Road, Southampton, SO16 6YD, UK.
| | - Steve Collins
- Valid Nutrition, Cuibín Farm, Derry Duff, Bantry, Co., Cork, Republic of Ireland.
- Valid International, 35 Leopold Street, Oxford, OX4 1TW, UK.
| | - Philip C Calder
- Faculty of Medicine, University of Southampton, Southampton General Hosptial, Tremona Road, Southampton, SO16 6YD, UK.
- National Institute of Health Southampton Biomedical Research Centre, Southampton General Hosptial, Tremona Road, Southampton, SO16 6YD, UK.
| | - James A Berkley
- KEMRI-Wellcome Trust Research Programme, Kilifi, 230-80108, Kenya.
- Nuffield Department of Clinical Medicine, Centre for Tropical Medicine & Global Health, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.
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90
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Vacchi-Suzzi C, Karimi R, Kruse D, Silbernagel SM, Levine KE, Rohlman DS, Meliker JR. Low-level mercury, omega-3 index and neurobehavioral outcomes in an adult US coastal population. Eur J Nutr 2015; 55:699-711. [PMID: 25832490 DOI: 10.1007/s00394-015-0890-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/22/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND Neurodevelopmental effects of omega-3 fatty acids and mercury from fish consumption have been characterized in children. In contrast, neurobehavioral outcomes associated with fish are not well studied in adults. OBJECTIVE This study of avid seafood consumers on Long Island (NY, USA) sought to define associations between mercury, seafood consumption, omega-3 fatty acids and neurobehavioral outcomes. METHODS A computer-based test system was used to assess neurobehavioral function. Blood total Hg (Hg) and omega-3 index were measured in 199 adult avid seafood eaters, who also completed the neurobehavioral assessment and an extensive food and fish frequency and demographic questionnaire. RESULTS For most of the outcomes considered, neither Hg nor omega-3 index was associated with neurobehavioral outcomes after adjustment for key confounding variables. Fish consumption, however, was associated with decreased odds of both self-reported fatigue (OR 0.85; 95 % CI 0.72, 1.01) and a constellation of neurologic symptoms (OR 0.79; 95 % CI 0.66, 0.96). CONCLUSIONS Results from our study provide little evidence that omega-3 fatty acids or Hg is associated with cognitive function in adult avid seafood consumers. Larger studies are needed to confirm our finding of associations between fish consumption and decreased self-reported fatigue and neurologic impairment.
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Affiliation(s)
- Caterina Vacchi-Suzzi
- Program in Public Health, Department of Preventive Medicine, Stony Brook University, Stony Brook, NY, 11794, USA.
| | - Roxanne Karimi
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Danielle Kruse
- School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Susan M Silbernagel
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Keith E Levine
- Trace Inorganics Department, Technologies for Industry and the Environment, RTI International, Research Triangle Park, NC, 27709, USA
| | - Diane S Rohlman
- Occupational and Environmental Health, University of Iowa, Iowa City, IA, 52242, USA
- Oregon Institute for Occupational Health Sciences, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Jaymie R Meliker
- Program in Public Health, Department of Preventive Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
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91
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Angelova PR, Horrocks MH, Klenerman D, Gandhi S, Abramov AY, Shchepinov MS. Lipid peroxidation is essential for α-synuclein-induced cell death. J Neurochem 2015; 133:582-9. [PMID: 25580849 PMCID: PMC4471127 DOI: 10.1111/jnc.13024] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 12/19/2014] [Accepted: 12/23/2014] [Indexed: 12/30/2022]
Abstract
Parkinson's disease is the second most common neurodegenerative disease and its pathogenesis is closely associated with oxidative stress. Deposition of aggregated α‐synuclein (α‐Syn) occurs in familial and sporadic forms of Parkinson's disease. Here, we studied the effect of oligomeric α‐Syn on one of the major markers of oxidative stress, lipid peroxidation, in primary co‐cultures of neurons and astrocytes. We found that oligomeric but not monomeric α‐Syn significantly increases the rate of production of reactive oxygen species, subsequently inducing lipid peroxidation in both neurons and astrocytes. Pre‐incubation of cells with isotope‐reinforced polyunsaturated fatty acids (D‐PUFAs) completely prevented the effect of oligomeric α‐Syn on lipid peroxidation. Inhibition of lipid peroxidation with D‐PUFAs further protected cells from cell death induced by oligomeric α‐Syn. Thus, lipid peroxidation induced by misfolding of α‐Syn may play an important role in the cellular mechanism of neuronal cell loss in Parkinson's disease.
![]() We have found that aggregated α‐synuclein‐induced production of reactive oxygen species (ROS) that subsequently stimulates lipid peroxidation and cell death in neurons and astrocytes. Specific inhibition of lipid peroxidation by incubation with reinforced polyunsaturated fatty acids (D‐PUFAs) completely prevented the effect of α‐synuclein on lipid peroxidation and cell death.
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92
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Wu A, Noble EE, Tyagi E, Ying Z, Zhuang Y, Gomez-Pinilla F. Curcumin boosts DHA in the brain: Implications for the prevention of anxiety disorders. Biochim Biophys Acta Mol Basis Dis 2014; 1852:951-61. [PMID: 25550171 DOI: 10.1016/j.bbadis.2014.12.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/17/2014] [Accepted: 12/02/2014] [Indexed: 12/29/2022]
Abstract
Dietary deficiency of docosahexaenoic acid (C22:6 n-3; DHA) is linked to the neuropathology of several cognitive disorders, including anxiety. DHA, which is essential for brain development and protection, is primarily obtained through the diet or synthesized from dietary precursors, however the conversion efficiency is low. Curcumin (diferuloylmethane), which is a principal component of the spice turmeric, complements the action of DHA in the brain, and this study was performed to determine molecular mechanisms involved. We report that curcumin enhances the synthesis of DHA from its precursor, α-linolenic acid (C18:3 n-3; ALA) and elevates levels of enzymes involved in the synthesis of DHA such as FADS2 and elongase 2 in both liver and brain tissues. Furthermore, in vivo treatment with curcumin and ALA reduced anxiety-like behavior in rodents. Taken together, these data suggest that curcumin enhances DHA synthesis, resulting in elevated brain DHA content. These findings have important implications for human health and the prevention of cognitive disease, particularly for populations eating a plant-based diet or who do not consume fish, a primary source of DHA, since DHA is essential for brain function and its deficiency is implicated in many types of neurological disorders.
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Affiliation(s)
- Aiguo Wu
- Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive Los Angeles, CA 90095, USA
| | - Emily E Noble
- Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive Los Angeles, CA 90095, USA
| | - Ethika Tyagi
- Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive Los Angeles, CA 90095, USA
| | - Zhe Ying
- Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive Los Angeles, CA 90095, USA
| | - Yumei Zhuang
- Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive Los Angeles, CA 90095, USA
| | - Fernando Gomez-Pinilla
- Department of Integrative Biology and Physiology, University of California at Los Angeles, 621 Charles E. Young Drive Los Angeles, CA 90095, USA; Department of Neurosurgery, UCLA Brain Injury Research Center, David Geffen School of medicine at UCLA, Los Angeles, CA 90095, USA.
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93
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Stewart KM. Environmental change and hominin exploitation of C4-based resources in wetland/savanna mosaics. J Hum Evol 2014; 77:1-16. [DOI: 10.1016/j.jhevol.2014.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 03/05/2014] [Accepted: 10/06/2014] [Indexed: 10/24/2022]
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94
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Polyunsaturated fatty acid composition of maternal diet and erythrocyte phospholipid status in Chilean pregnant women. Nutrients 2014; 6:4918-34. [PMID: 25386693 PMCID: PMC4245572 DOI: 10.3390/nu6114918] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/14/2014] [Accepted: 10/24/2014] [Indexed: 02/02/2023] Open
Abstract
Chilean diets are characterized by a low supply of n-3 polyunsaturated fatty acids (n-3 PUFA), which are critical nutrients during pregnancy and lactation, because of their role in brain and visual development. DHA is the most relevant n-3 PUFA in this period. We evaluated the dietary n-3 PUFA intake and erythrocyte phospholipids n-3 PUFA in Chilean pregnant women. Eighty healthy pregnant women (20-36 years old) in the 3rd-6th month of pregnancy were included in the study. Dietary assessment was done applying a food frequency questionnaire, and data were analyzed through the Food Processor SQL® software. Fatty acids of erythrocyte phospholipids were assessed by gas-liquid chromatography. Diet composition was high in saturated fat, low in mono- and PUFA, high in n-6 PUFA (linoleic acid) and low in n-3 PUFA (alpha-linolenic acid and DHA), with imbalance in the n-6/n-3 PUFA ratio. Similar results were observed for fatty acids from erythrocyte phospholipids. The sample of Chilean pregnant women showed high consumption of saturated fat and low consumption of n-3 PUFA, which is reflected in the low DHA content of erythrocyte phospholipids. Imbalance between n-6/n-3 PUFA could negatively affect fetal development. New strategies are necessary to improve n-3 PUFA intake throughout pregnancy and breast feeding periods. Furthermore, it is necessary to develop dietary interventions to improve the quality of consumed foods with particular emphasis on n-3 PUFA.
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