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Lapillonne A, Lembo C, Moltu SJ. Evidence on docosahexaenoic acid and arachidonic acid supplementation for preterm infants. Curr Opin Clin Nutr Metab Care 2024; 27:283-289. [PMID: 38547330 DOI: 10.1097/mco.0000000000001035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
PURPOSE OF REVIEW For many decades, docosahexaenoic acid (DHA) supplementation was tested in premature infants to achieve an intake equivalent to the average level in breast milk, but this approach has led to conflicting results in terms of development and health outcomes. Higher doses of DHA closer to fetal accumulation may be needed. RECENT FINDINGS The efficacy of DHA supplementation for preterm infants at a dose equivalent to the estimated fetal accumulation rate is still under investigation, but this may be a promising approach, especially in conjunction with arachidonic acid supplementation. Current data suggest benefit for some outcomes, such as brain maturation, long-term cognitive function, and the prevention of retinopathy of prematurity. The possibility that supplementation with highly unsaturated oils increases the risk of neonatal morbidities should not be ruled out, but current meta-analyzes do not support a significant risk. SUMMARY The published literature supports a DHA intake in preterm infants that is closer to the fetal accumulation rate than the average breast milk content. Supplementation with DHA at this level in combination with arachidonic acid is currently being investigated and appears promising.
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Affiliation(s)
- Alexandre Lapillonne
- Department of Neonatology, APHP, Necker-Enfants Malades University Hospital
- EHU 7328 PACT, Paris Cite University, Paris, France
- CNRC Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Chiara Lembo
- Department of Neonatology, APHP, Necker-Enfants Malades University Hospital
| | - Sissel J Moltu
- Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway
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2
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Xu H, Sun Y, Francis M, Cheng CF, Modulla NT, Brenna JT, Chiang CWK, Ye K. Shared genetic basis informs the roles of polyunsaturated fatty acids in brain disorders. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.10.03.23296500. [PMID: 37873425 PMCID: PMC10593041 DOI: 10.1101/2023.10.03.23296500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The neural tissue is rich in polyunsaturated fatty acids (PUFAs), components that are indispensable for the proper functioning of neurons, such as neurotransmission. PUFA nutritional deficiency and imbalance have been linked to a variety of chronic brain disorders, including major depressive disorder (MDD), anxiety, and anorexia. However, the effects of PUFAs on brain disorders remain inconclusive, and the extent of their shared genetic determinants is largely unknown. Here, we used genome-wide association summary statistics to systematically examine the shared genetic basis between six phenotypes of circulating PUFAs (N = 114,999) and 20 brain disorders (N = 9,725-762,917), infer their potential causal relationships, identify colocalized regions, and pinpoint shared genetic variants. Genetic correlation and polygenic overlap analyses revealed a widespread shared genetic basis for 77 trait pairs between six PUFA phenotypes and 16 brain disorders. Two-sample Mendelian randomization analysis indicated potential causal relationships for 16 pairs of PUFAs and brain disorders, including alcohol consumption, bipolar disorder (BIP), and MDD. Colocalization analysis identified 40 shared loci (13 unique) among six PUFAs and ten brain disorders. Twenty-two unique variants were statistically inferred as candidate shared causal variants, including rs1260326 (GCKR), rs174564 (FADS2) and rs4818766 (ADARB1). These findings reveal a widespread shared genetic basis between PUFAs and brain disorders, pinpoint specific shared variants, and provide support for the potential effects of PUFAs on certain brain disorders, especially MDD, BIP, and alcohol consumption.
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Affiliation(s)
- Huifang Xu
- Department of Genetics, University of Georgia, Athens, Georgia
| | - Yitang Sun
- Department of Genetics, University of Georgia, Athens, Georgia
| | - Michael Francis
- Institute of Bioinformatics, University of Georgia, Athens, Georgia
| | - Claire F. Cheng
- Department of Genetics, University of Georgia, Athens, Georgia
| | | | - J. Thomas Brenna
- Dell Pediatric Research Institute and Department of Pediatrics, The University of Texas at Austin, Texas
- Dell Pediatric Research Institute and Department of Chemistry, The University of Texas at Austin, Texas
- Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Texas
| | - Charleston W. K. Chiang
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, California
- Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, California
| | - Kaixiong Ye
- Department of Genetics, University of Georgia, Athens, Georgia
- Institute of Bioinformatics, University of Georgia, Athens, Georgia
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Zhang H, He Y, Song C, Chai Z, Liu C, Sun S, Huang Q, He C, Zhang X, Zhou Y, Zhao F. Analysis of fatty acid composition and sensitivity to dietary n-3 PUFA intervention of mouse n-3 PUFA-enriched tissues/organs. Prostaglandins Leukot Essent Fatty Acids 2023; 192:102568. [PMID: 37003143 DOI: 10.1016/j.plefa.2023.102568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 04/03/2023]
Abstract
PURPOSE n-3 polyunsaturated fatty acids (PUFAs), docosahexaenoic acid (DHA; C22:6 n3) and eicosapentaenoic acid (EPA; C20:5 n3), are of concern for their health-promoting effects such as anti-inflammatory, but the tissue selectivity for n-3 PUFA (i.e., which tissues and organs are rich in n-3 PUFA) is still not well known. In addition, it is unclear which tissues and organs are more sensitive to n-3 PUFA intervention. These unresolved issues have greatly hindered the exploring of the health benefits of n-3 PUFA. METHODS Twenty-four 7-week-old male C57BL/6 J mice were assigned to the control, fish oil, DHA, and EPA groups. The last three groups were given a 4-week oral intervention of fatty acids in ethyl ester (400 mg/kg bw). The fatty acid profiles in 27 compartments were determined by gas chromatography. RESULTS The proportion of long-chain n-3 PUFA (the total relative percentage of EPA, DPA n3, and DHA) was analyzed. Eight tissues and organs, including the brain (cerebral cortex, hippocampus, hypothalamus) and peripheral organs (tongue, quadriceps, gastrocnemius, kidney, and heart) were determined as being n-3 PUFA-enriched tissues and organs, owing to their high n-3 PUFA levels. The highest n-3 PUFA content was observed in the tongue for the first time. Notably, the content of linoleic acid (LA; C18:2 n6c) in peripheral organs was observed to be relatively high compared with that in the brain. Interestingly, the proportions of EPA in the kidney, heart, quadriceps, gastrocnemius, and tongue increased more markedly after the EPA intervention than after the DHA or fish oil intervention. As expected, the levels of proinflammatory arachidonic acid (AA; C20:4 n6) in the kidney, quadriceps, and tongue were markedly decreased after the three dietary interventions. CONCLUSION Peripheral tissues and organs, including the tongue, quadriceps, gastrocnemius, kidney, and heart, besides the brain, showed obvious tissue selectivity for n-3 PUFA. In the whole body of mice, the tongue exhibits the strongest preference for n-3 PUFA, with the highest proportion of n-3 PUFA. Moreover, these peripheral tissues and organs, especially the kidney, are more sensitive to dietary EPA administration in comparison with the brain.
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Affiliation(s)
- Hui Zhang
- School of Public Health, Health Science Center, Ningbo University, Zhejiang Key Laboratory of Pathophysiology, Ningbo, Zhejiang, 315211, China
| | - Yannan He
- Institute of Nutrition & Health, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China; OmegaBandz.Inc, Shanghai, 1180 Xingxian Road, Shanghai, 201815, China
| | - Chunyan Song
- School of Public Health, Health Science Center, Ningbo University, Zhejiang Key Laboratory of Pathophysiology, Ningbo, Zhejiang, 315211, China
| | - Zhenglong Chai
- School of Public Health, Health Science Center, Ningbo University, Zhejiang Key Laboratory of Pathophysiology, Ningbo, Zhejiang, 315211, China
| | - Chundi Liu
- The Affiliated Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Shuben Sun
- The Affiliated Hospital of Medical School, Ningbo University, Institute of Digestive Disease of Ningbo University, Ningbo, Zhejiang, 315020, China
| | - Qiuhan Huang
- School of Public Health, Health Science Center, Ningbo University, Zhejiang Key Laboratory of Pathophysiology, Ningbo, Zhejiang, 315211, China
| | - Canxia He
- School of Public Health, Health Science Center, Ningbo University, Zhejiang Key Laboratory of Pathophysiology, Ningbo, Zhejiang, 315211, China
| | - Xiaohong Zhang
- School of Public Health, Health Science Center, Ningbo University, Zhejiang Key Laboratory of Pathophysiology, Ningbo, Zhejiang, 315211, China.
| | - Yuping Zhou
- The Affiliated Hospital of Medical School, Ningbo University, Institute of Digestive Disease of Ningbo University, Ningbo, Zhejiang, 315020, China
| | - Feng Zhao
- Institute of Nutrition & Health, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
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James G, Stephenson K, Callaghan-Gillespie M, Kamara MT, Park HG, Brenna JT, Manary MJ. Docosahexaenoic Acid Stability in Ready-to-Use Therapeutic Food. Foods 2023; 12:foods12020308. [PMID: 36673399 PMCID: PMC9858440 DOI: 10.3390/foods12020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
Ready-to-use therapeutic food (RUTF) is used to treat young children diagnosed with severe acute malnutrition. RUTF with low and balanced linoleic and alpha-linolenic acid, plus omega-3 docosahexaenoic acid (DHA), supports long-term cognitive recovery. DHA is prone to degradation due to peroxidation, possibly exacerbated by the iron inherently in RUTF. Our goals were to prepare benchtop and manufacturing scale of RUTF formulations that include DHA and measure its retention. Twenty-seven RUTF formulas with base ingredients, including oats, high oleic or commodity peanuts, and encapsulated or oil-based DHA at various levels were prepared at benchtop scale, followed by seven months of climate-controlled storage. These pilot samples had similar relative DHA retention. At the manufacturing scale, DHA was added at one of two stages in the process, either at the initial or the final mixing stage. Samples taken at preliminary or later steps show that less than 20% of DHA added at the early stages disappeared prior to packaging for any recipe tested. Overall, our data indicate that most DHA included in RUTF is retained in the final product and that DHA is best retained when added at the latest manufacturing stage.
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Affiliation(s)
- Genevieve James
- Dell Pediatric Research Institute, The University of Texas at Austin, Austin, TX 78723, USA
| | - Kevin Stephenson
- Department of Medicine, Washington University, St. Louis, MO 63110, USA
| | | | | | - Hui Gyu Park
- Dell Pediatric Research Institute, The University of Texas at Austin, Austin, TX 78723, USA
| | - J. Thomas Brenna
- Dell Pediatric Research Institute, The University of Texas at Austin, Austin, TX 78723, USA
| | - Mark J. Manary
- Department of Pediatrics, Washington University, St. Louis, MO 63110, USA
- Project Peanut Butter, Freetown 47235, Sierra Leone
- Children’s Nutrition Research Center, USDA-Agricultural Research Service, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-(314)-454-2178
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Závorka L, Blanco A, Chaguaceda F, Cucherousset J, Killen SS, Liénart C, Mathieu-Resuge M, Němec P, Pilecky M, Scharnweber K, Twining CW, Kainz MJ. The role of vital dietary biomolecules in eco-evo-devo dynamics. Trends Ecol Evol 2023; 38:72-84. [PMID: 36182405 DOI: 10.1016/j.tree.2022.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 12/30/2022]
Abstract
The physiological dependence of animals on dietary intake of vitamins, amino acids, and fatty acids is ubiquitous. Sharp differences in the availability of these vital dietary biomolecules among different resources mean that consumers must adopt a range of strategies to meet their physiological needs. We review the emerging work on omega-3 long-chain polyunsaturated fatty acids, focusing predominantly on predator-prey interactions, to illustrate that trade-off between capacities to consume resources rich in vital biomolecules and internal synthesis capacity drives differences in phenotype and fitness of consumers. This can then feedback to impact ecosystem functioning. We outline how focus on vital dietary biomolecules in eco-eco-devo dynamics can improve our understanding of anthropogenic changes across multiple levels of biological organization.
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Affiliation(s)
- Libor Závorka
- WasserCluster Lunz - Biologische Station, Inter-university Centre for Aquatic Ecosystem Research, A-3293 Lunz am See, Austria.
| | - Andreu Blanco
- Centro de Investigación Mariña, Universidade de Vigo, EcoCost, Campus de Vigo, As Lagoas, Marcosende, 36310, Vigo, Spain
| | - Fernando Chaguaceda
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 750 07 Uppsala, Sweden
| | - Julien Cucherousset
- Laboratoire Evolution et Diversité Biologique (UMR 5174 EDB), CNRS, Université Paul Sabatier - Toulouse III, 31062 Toulouse, France
| | - Shaun S Killen
- School of Biodiversity, One Health & Veterinary Medicine, Graham Kerr Building, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Camilla Liénart
- Tvärminne Zoological Station, University of Helsinki, J.A. Palménin tie 260, Hanko, 10900, Finland
| | - Margaux Mathieu-Resuge
- WasserCluster Lunz - Biologische Station, Inter-university Centre for Aquatic Ecosystem Research, A-3293 Lunz am See, Austria; Université de Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, Brittany, France; UMR DECOD (Ecosystem Dynamics and Sustainability), Ifremer, INRAE, Institut Agro, Plouzané, France
| | - Pavel Němec
- Department of Zoology, Faculty of Science, Charles University, CZ-12844 Prague, Czech Republic
| | - Matthias Pilecky
- WasserCluster Lunz - Biologische Station, Inter-university Centre for Aquatic Ecosystem Research, A-3293 Lunz am See, Austria; Danube University Krems, Dr. Karl Dorrek Straße 30, A-3500 Krems, Austria
| | - Kristin Scharnweber
- University of Potsdam, Plant Ecology and Nature Conservation, Am Mühlenberg 3, 14476 Potsdam, Germany
| | - Cornelia W Twining
- Department of Fish Ecology and Evolution, Eawag - Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047 Kastanienbaum, Switzerland
| | - Martin J Kainz
- WasserCluster Lunz - Biologische Station, Inter-university Centre for Aquatic Ecosystem Research, A-3293 Lunz am See, Austria; Danube University Krems, Dr. Karl Dorrek Straße 30, A-3500 Krems, Austria
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Brombach C, Tong W, Giussani DA. Maternal obesity: new placental paradigms unfolded. Trends Mol Med 2022; 28:823-835. [PMID: 35760668 DOI: 10.1016/j.molmed.2022.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 01/24/2023]
Abstract
The prevalence of maternal obesity is increasing at an alarming rate, and is providing a major challenge for obstetric practice. Adverse effects on maternal and fetal health are mediated by complex interactions between metabolic, inflammatory, and oxidative stress signaling in the placenta. Endoplasmic reticulum (ER) stress and activation of the unfolded protein response (UPR) are common downstream pathways of cell stress, and there is evidence that this conserved homeostatic response may be a key mediator in the pathogenesis of placental dysfunction. We summarize the current literature on the placental cellular and molecular changes that occur in obese women. A special focus is cast onto placental ER stress in obese pregnancy, which may provide a novel link for future investigation.
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Affiliation(s)
| | - Wen Tong
- Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3EL, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Cambridge Strategic Research Initiative in Reproduction, Cambridge CB2 3EL, Cambridge UK.
| | - Dino A Giussani
- Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3EL, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Cambridge Strategic Research Initiative in Reproduction, Cambridge CB2 3EL, Cambridge UK; Cambridge Cardiovascular Centre for Research Excellence, Cambridge CB2 0QQ, UK.
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7
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Závorka L, Wallerius ML, Kainz MJ, Höjesjö J. Linking omega-3 polyunsaturated fatty acids in natural diet with brain size of wild consumers. Oecologia 2022; 199:797-807. [PMID: 35960390 DOI: 10.1007/s00442-022-05229-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 07/20/2022] [Indexed: 01/27/2023]
Abstract
Omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA) are key structural lipids and their dietary intake is essential for brain development of virtually all vertebrates. The importance of n-3 LC-PUFA has been demonstrated in clinical and laboratory studies, but little is known about how differences in the availability of n-3 LC-PUFA in natural prey influence brain development of wild consumers. Consumers foraging at the interface of aquatic and terrestrial food webs can differ substantially in their intake of n-3 LC-PUFA, which may lead to differences in brain development, yet this hypothesis remains to be tested. Here we use the previously demonstrated shift towards higher reliance on n-3 LC-PUFA deprived terrestrial prey of native brown trout Salmo trutta living in sympatry with invasive brook trout Salvelinus fontinalis to explore this hypothesis. We found that the content of n-3 LC-PUFA in muscle tissues of brown trout decreased with increasing consumption of n-3 LC-PUFA deprived terrestrial prey. Brain volume was positively related to the content of the n-3 LC-PUFA, docosahexaenoic acid, in muscle tissues of brown trout. Our study thus suggests that increased reliance on diets low in n-3 LC-PUFA, such as terrestrial subsidies, can have a significant negative impact on brain development of wild trout. Our findings provide the first evidence of how brains of wild vertebrate consumers response to scarcity of n-3 LC-PUFA content in natural prey.
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Affiliation(s)
- Libor Závorka
- WasserCluster Lunz, Inter-university Centre for Aquatic Ecosystem Research, 3293, Lunz am See, Austria.
| | - Magnus Lovén Wallerius
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30, Gothenburg, Sweden
| | - Martin J Kainz
- WasserCluster Lunz, Inter-university Centre for Aquatic Ecosystem Research, 3293, Lunz am See, Austria.,Department of Biomedical Research, Danube University Krems, 3500, Krems, Austria
| | - Johan Höjesjö
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30, Gothenburg, Sweden
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Fatty Acids: A Safe Tool for Improving Neurodevelopmental Alterations in Down Syndrome? Nutrients 2022; 14:nu14142880. [PMID: 35889838 PMCID: PMC9323400 DOI: 10.3390/nu14142880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 02/06/2023] Open
Abstract
The triplication of chromosome 21 causes Down syndrome (DS), a genetic disorder that is characterized by intellectual disability (ID). The causes of ID start in utero, leading to impairments in neurogenesis, and continue into infancy, leading to impairments in dendritogenesis, spinogenesis, and connectivity. These defects are associated with alterations in mitochondrial and metabolic functions and precocious aging, leading to the early development of Alzheimer’s disease. Intense efforts are currently underway, taking advantage of DS mouse models to discover pharmacotherapies for the neurodevelopmental and cognitive deficits of DS. Many treatments that proved effective in mouse models may raise safety concerns over human use, especially at early life stages. Accumulating evidence shows that fatty acids, which are nutrients present in normal diets, exert numerous positive effects on the brain. Here, we review (i) the knowledge obtained from animal models regarding the effects of fatty acids on the brain, by focusing on alterations that are particularly prominent in DS, and (ii) the progress recently made in a DS mouse model, suggesting that fatty acids may indeed represent a useful treatment for DS. This scenario should prompt the scientific community to further explore the potential benefit of fatty acids for people with DS.
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Soubeyre V, Merle L, Jarriault D, Grégoire S, Bretillon L, Acar N, Grosmaitre X, Le Bon AM. Dietary n-3 polyunsaturated fatty acid deficiency alters olfactory mucosa sensitivity in young mice but has no impact on olfactory behavior. Nutr Neurosci 2022:1-14. [PMID: 35694841 DOI: 10.1080/1028415x.2022.2082642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND OBJECTIVE We recently showed that perinatal exposure to diets with unbalanced n-6:n-3 polyunsaturated fatty acid (PUFA) ratios affects the olfactory mucosa (OM) fatty acid composition. To assess the repercussions of these modifications, we investigated the impact of diets unbalanced in n-3 PUFAs on the molecular composition and functionality of the OM in young mice. METHODS After mating, female mice were fed diets either deficient in α-linolenic acid (LOW diet) or supplemented with n-3 long-chain PUFAs (HIGH diet) during the perinatal period. Weaned male offspring were then fed ad libitum with the same experimental diets for 5 weeks. At 8 weeks of age, olfactory behavior tests were performed in young mice. The fatty acid composition of OM and olfactory cilia, as well as the expression of genes involved in different cellular pathways, were analyzed. The electroolfactograms induced by odorant stimuli were recorded to assess the impact of diets on OM functionality. RESULTS AND CONCLUSION Both diets significantly modified the fatty acid profiles of OM and olfactory cilia in young mice. They also induced changes in the expression of genes involved in olfactory signaling and in olfactory neuron maturation. The electroolfactogram amplitudes were reduced in mice fed the LOW diet. Nevertheless, the LOW diet and the HIGH diet did not affect mouse olfactory behavior. Our study demonstrated that consumption of diets deficient in or supplemented with n-3 PUFAs during the perinatal and postweaning periods caused significant changes in young mouse OM. However, these modifications did not impair their olfactory capacities.
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Affiliation(s)
- Vanessa Soubeyre
- Institut de Génomique Fonctionnelle, Université de Montpellier, CNRS UMR-5203, INSERM U1091, Montpellier, France
| | - Laetitia Merle
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - David Jarriault
- NutriNeuro, UMR 1286 INRAE, Bordeaux INP, Université de Bordeaux, Bordeaux, France
| | - Stéphane Grégoire
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Lionel Bretillon
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Niyazi Acar
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Xavier Grosmaitre
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Anne Marie Le Bon
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
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10
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Crawford MA, Wang Y, Marsh DE, Johnson MR, Ogundipe E, Ibrahim A, Rajkumar H, Kowsalya S, Kothapalli KSD, Brenna JT. Neurodevelopment, nutrition and genetics. A contemporary retrospective on neurocognitive health on the occasion of the 100th anniversary of the National Institute of Nutrition, Hyderabad, India. Prostaglandins Leukot Essent Fatty Acids 2022; 180:102427. [PMID: 35413515 PMCID: PMC9152880 DOI: 10.1016/j.plefa.2022.102427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/02/2022] [Accepted: 04/03/2022] [Indexed: 11/28/2022]
Abstract
In celebration of the centenary of the National Institute of Nutrition (NIN), Hyderabad, India (1918-2018), a symposium highlighted the progress in nutrition knowledge made over the century, as well as major gaps in implementation of that knowledge. Brain famine caused by a shortage of nutrients required for perinatal brain development has unfortunately become a global reality, even as protein-calorie famine was largely averted by the development of high yield crops. While malnutrition remains widespread, the neglect of global food policies that support brain development and maintenance are most alarming. Brain disorders now top the list of the global burden of disease, even with obesity rising throughout the world. Neurocognitive health, remarkably, is seldom listed among the non-communicable diseases (NCDs) and is therefore seldom considered as a component of food policy. Most notably, the health of mothers before conception and through pregnancy as mediated by proper nutrition has been neglected by the current focus on early death in non-neurocognitive NCDs, thereby compromising intellectual development of the ensuing generations. Foods with balanced essential fatty acids and ample absorbable micronutrients are plentiful for populations with access to shore-based foods, but deficient only a few kilometres away from the sea. Sustained access to brain supportive foods is a priority for India and throughout the world to enable each child to develop to their intellectual potential, and support a prosperous, just, and peaceful world. Nutrition education and food policy should place the nutritional requirements for the brain on top of the list of priorities.
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Affiliation(s)
- Michael A Crawford
- Institute of Brain Chemistry and Human Nutrition, Chelsea and Westminster Hospital Campus of Imperial College, London, United Kingdom
| | - Yiqun Wang
- Institute of Brain Chemistry and Human Nutrition, Chelsea and Westminster Hospital Campus of Imperial College, London, United Kingdom
| | - David E Marsh
- Institute of Brain Chemistry and Human Nutrition, Chelsea and Westminster Hospital Campus of Imperial College, London, United Kingdom
| | - Mark R Johnson
- Institute of Brain Chemistry and Human Nutrition, Chelsea and Westminster Hospital Campus of Imperial College, London, United Kingdom
| | - Enitan Ogundipe
- Institute of Brain Chemistry and Human Nutrition, Chelsea and Westminster Hospital Campus of Imperial College, London, United Kingdom
| | - Ahamed Ibrahim
- National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, India
| | - Hemalatha Rajkumar
- National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, India
| | - S Kowsalya
- Department of Food Science and Nutrition, Avinashilingam Institute for Home Science and Higher Education for Women (Deemed to be University), Coimbatore, India
| | - Kumar S D Kothapalli
- Dell Pediatric Research Institute, Dell Medical School, The University of Texas at Austin, 1400 Barbara Jordan Blvd, Austin, TX 78723, United States.
| | - J T Brenna
- Dell Pediatric Research Institute, Dell Medical School, The University of Texas at Austin, 1400 Barbara Jordan Blvd, Austin, TX 78723, United States.
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11
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Cusick SE, Barks A, Georgieff MK. Nutrition and Brain Development. Curr Top Behav Neurosci 2022; 53:131-165. [PMID: 34622395 DOI: 10.1007/7854_2021_244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
All nutrients are essential for brain development, but pre-clinical and clinical studies have revealed sensitive periods of brain development during which key nutrients are critical. An understanding of these nutrient-specific sensitive periods and the accompanying brain regions or processes that are developing can guide effective nutrition interventions as well as the choice of meaningful circuit-specific neurobehavioral tests to best determine outcome. For several nutrients including protein, iron, iodine, and choline, pre-clinical and clinical studies align to identify the same sensitive periods, while for other nutrients, such as long-chain polyunsaturated fatty acids, zinc, and vitamin D, pre-clinical models demonstrate benefit which is not consistently shown in clinical studies. This discordance of pre-clinical and clinical results is potentially due to key differences in the timing, dose, and/or duration of the nutritional intervention as well as the pre-existing nutritional status of the target population. In general, however, the optimal window of success for nutritional intervention to best support brain development is in late fetal and early postnatal life. Lack of essential nutrients during these times can lead to long-lasting dysfunction and significant loss of developmental potential.
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Affiliation(s)
- Sarah E Cusick
- Department of Pediatrics, University of Minnesota School of Medicine, Minneapolis, MN, USA.
| | - Amanda Barks
- University of Minnesota Medical School, Minneapolis, MN, USA
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Brandt MJV, Nijboer CH, Nessel I, Mutshiya TR, Michael-Titus AT, Counotte DS, Schipper L, van der Aa NE, Benders MJNL, de Theije CGM. Nutritional Supplementation Reduces Lesion Size and Neuroinflammation in a Sex-Dependent Manner in a Mouse Model of Perinatal Hypoxic-Ischemic Brain Injury. Nutrients 2021; 14:176. [PMID: 35011052 PMCID: PMC8747710 DOI: 10.3390/nu14010176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/22/2022] Open
Abstract
Perinatal hypoxia-ischemia (HI) is a major cause of neonatal brain injury, leading to long-term neurological impairments. Medical nutrition can be rapidly implemented in the clinic, making it a viable intervention to improve neurodevelopment after injury. The omega-3 (n-3) fatty acids docosahexaenoic acid (DHA, 22:6n-3) and eicosapentaenoic acid (EPA, 20:5n-3), uridine monophosphate (UMP) and choline have previously been shown in rodents to synergistically enhance brain phospholipids, synaptic components and cognitive performance. The objective of this study was to test the efficacy of an experimental diet containing DHA, EPA, UMP, choline, iodide, zinc, and vitamin B12 in a mouse model of perinatal HI. Male and female C57Bl/6 mice received the experimental diet or an isocaloric control diet from birth. Hypoxic ischemic encephalopathy was induced on postnatal day 9 by ligation of the right common carotid artery and systemic hypoxia. To assess the effects of the experimental diet on long-term motor and cognitive outcome, mice were subjected to a behavioral test battery. Lesion size, neuroinflammation, brain fatty acids and phospholipids were analyzed at 15 weeks after HI. The experimental diet reduced lesion size and neuroinflammation specifically in males. In both sexes, brain n-3 fatty acids were increased after receiving the experimental diet. The experimental diet also improved novel object recognition, but no significant effects on motor performance were observed. Current data indicates that early life nutritional supplementation with a combination of DHA, EPA, UMP, choline, iodide, zinc, and vitamin B12 may provide neuroprotection after perinatal HI.
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Affiliation(s)
- Myrna J. V. Brandt
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands; (M.J.V.B.); (C.H.N.)
| | - Cora H. Nijboer
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands; (M.J.V.B.); (C.H.N.)
| | - Isabell Nessel
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Queen Mary University of London, London E1 2AD, UK; (I.N.); (T.R.M.); (A.T.M.-T.)
| | - Tatenda R. Mutshiya
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Queen Mary University of London, London E1 2AD, UK; (I.N.); (T.R.M.); (A.T.M.-T.)
| | - Adina T. Michael-Titus
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Queen Mary University of London, London E1 2AD, UK; (I.N.); (T.R.M.); (A.T.M.-T.)
| | | | - Lidewij Schipper
- Danone Nutricia Research, 3508 TC Utrecht, The Netherlands; (D.S.C.); (L.S.)
| | - Niek E. van der Aa
- Department of Neonatology, University Medical Center Utrecht Brain Center and Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands; (N.E.v.d.A.); (M.J.N.L.B.)
| | - Manon J. N. L. Benders
- Department of Neonatology, University Medical Center Utrecht Brain Center and Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands; (N.E.v.d.A.); (M.J.N.L.B.)
| | - Caroline G. M. de Theije
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children’s Hospital, Utrecht University, 3508 AB Utrecht, The Netherlands; (M.J.V.B.); (C.H.N.)
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Taesuwan S, McDougall MQ, Malysheva OV, Bender E, Nevins JEH, Devapatla S, Vidavalur R, Caudill MA, Klatt KC. Choline metabolome response to prenatal choline supplementation across pregnancy: A randomized controlled trial. FASEB J 2021; 35:e22063. [PMID: 34820909 PMCID: PMC10911820 DOI: 10.1096/fj.202101401rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 12/31/2022]
Abstract
Pregnancy places a unique stress upon choline metabolism, requiring adaptations to support both maternal and fetal requirements. The impact of pregnancy and prenatal choline supplementation on choline and its metabolome in free-living, healthy adults is relatively uncharacterized. This study investigated the effect of prenatal choline supplementation on maternal and fetal biomarkers of choline metabolism among free-living pregnant persons consuming self-selected diets. Participants were randomized to supplemental choline (as choline chloride) intakes of 550 mg/d (500 mg/d d0-choline + 50 mg/d methyl-d9-choline; intervention) or 25 mg/d d9-choline (control) from gestational week (GW) 12-16 until Delivery. Fasting blood and 24-h urine samples were obtained at study Visit 1 (GW 12-16), Visit 2 (GW 20-24), and Visit 3 (GW 28-32). At Delivery, maternal and cord blood and placental tissue samples were collected. Participants randomized to 550 (vs. 25) mg supplemental choline/d achieved higher (p < .05) plasma concentrations of free choline, betaine, dimethylglycine, phosphatidylcholine (PC), and sphingomyelin at one or more study timepoint. Betaine was most responsive to prenatal choline supplementation with increases (p ≤ .001) in maternal plasma observed at Visit 2-Delivery (relative to Visit 1 and control), as well as in the placenta and cord plasma. Notably, greater plasma enrichments of d3-PC and LDL-C were observed in the intervention (vs. control) group, indicating enhanced PC synthesis through the de novo phosphatidylethanolamine N-methyltransferase pathway and lipid export. Overall, these data show that prenatal choline supplementation profoundly alters the choline metabolome, supporting pregnancy-related metabolic adaptations and revealing biomarkers for use in nutritional assessment and monitoring during pregnancy.
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Affiliation(s)
- Siraphat Taesuwan
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
| | | | - Olga V. Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
| | - Erica Bender
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
| | - Julie E. H. Nevins
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
| | | | | | - Marie A. Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
| | - Kevin C. Klatt
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA
- Children’s Nutrition Research Center, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
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Stephenson K, Callaghan-Gillespie M, Maleta K, Nkhoma M, George M, Park HG, Lee R, Humphries-Cuff I, Lacombe RJS, Wegner DR, Canfield RL, Brenna JT, Manary MJ. Low linoleic acid foods with added DHA given to Malawian children with severe acute malnutrition improve cognition: a randomized, triple-blinded, controlled clinical trial. Am J Clin Nutr 2021; 115:1322-1333. [PMID: 34726694 PMCID: PMC9071416 DOI: 10.1093/ajcn/nqab363] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/28/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND There is concern that the PUFA composition of ready-to-use therapeutic food (RUTF) for the treatment of severe acute malnutrition (SAM) is suboptimal for neurocognitive recovery. OBJECTIVES We tested the hypothesis that RUTF made with reduced amounts of linoleic acid, achieved using high-oleic (HO) peanuts without added DHA (HO-RUTF) or with added DHA (DHA-HO-RUTF), improves cognition when compared with standard RUTF (S-RUTF). METHODS A triple-blind, randomized, controlled clinical feeding trial was conducted among children with uncomplicated SAM in Malawi with 3 types of RUTF: DHA-HO-RUTF, HO-RUTF, and S-RUTF. The primary outcomes, measured in a subset of subjects, were the Malawi Developmental Assessment Tool (MDAT) global z-score and a modified Willatts problem-solving assessment (PSA) intention score for 3 standardized problems, measured 6 mo and immediately after completing RUTF therapy, respectively. MDAT domain z-scores, plasma fatty acid content, anthropometry, and eye tracking were secondary outcomes. Comparisons were made between the novel PUFA RUTFs and S-RUTF. RESULTS Among the 2565 SAM children enrolled, mean global MDAT z-scores were -0.69 ± 1.19 and -0.88 ± 1.27 for children receiving DHA-HO-RUTF and S-RUTF, respectively (difference 0.19, 95% CI: 0.01, 0.38). Children receiving DHA-HO-RUTF had higher gross motor and social domain z-scores than those receiving S-RUTF. The PSA problem 3 scores did not differ by dietary group (OR: 0.92, 95% CI: 0.67, 1.26 for DHA-HO-RUTF). After 4 wk of treatment, plasma phospholipid EPA and α-linolenic acid were greater in children consuming DHA-HO-RUTF or HO-RUTF when compared with S-RUTF (for all 4 comparisons P values < 0.001), but only plasma DHA was greater in DHA-HO-RUTF than S-RUTF (P < 0.001). CONCLUSIONS Treatment of uncomplicated SAM with DHA-HO-RUTF resulted in an improved MDAT score, conferring a cognitive benefit 6 mo after completing diet therapy. This treatment should be explored in operational settings. This trial was registered at clinicaltrials.gov as NCT03094247.
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Affiliation(s)
- Kevin Stephenson
- Department of Medicine, Washington University, St.
Louis, MO, USA
| | | | - Kenneth Maleta
- Department of Public Health, School of Public Health & Family Medicine,
Kamuzu University of Health Sciences, Blantyre,
Malawi
| | - Minyanga Nkhoma
- Department of Public Health, School of Public Health & Family Medicine,
Kamuzu University of Health Sciences, Blantyre,
Malawi
| | - Matthews George
- Department of Public Health, School of Public Health & Family Medicine,
Kamuzu University of Health Sciences, Blantyre,
Malawi
| | - Hui Gyu Park
- Department of Pediatrics, University of Texas at Austin,
Austin, TX, USA
| | - Reginald Lee
- Department of Pediatrics, Washington University,
St. Louis, MO, USA
| | | | - R J Scott Lacombe
- Department of Pediatrics, University of Texas at Austin,
Austin, TX, USA
| | - Donna R Wegner
- Department of Pediatrics, Washington University,
St. Louis, MO, USA
| | - Richard L Canfield
- Department of Pediatrics, University of Texas at Austin,
Austin, TX, USA
| | - J Thomas Brenna
- Department of Pediatrics, University of Texas at Austin,
Austin, TX, USA,Division of Nutritional Sciences, Cornell University,
Ithaca, NY, USA
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15
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Carlson SE, Schipper L, Brenna JT, Agostoni C, Calder PC, Forsyth S, Legrand P, Abrahamse-Berkeveld M, van de Heijning BJM, van der Beek EM, Koletzko BV, Muhlhausler B. Perspective: Moving Toward Desirable Linoleic Acid Content in Infant Formula. Adv Nutr 2021; 12:2085-2098. [PMID: 34265035 PMCID: PMC8634410 DOI: 10.1093/advances/nmab076] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/19/2021] [Accepted: 05/24/2021] [Indexed: 02/07/2023] Open
Abstract
Infant formula should provide the appropriate nutrients and adequate energy to facilitate healthy infant growth and development. If conclusive data on quantitative nutrient requirements are not available, the composition of human milk (HM) can provide some initial guidance on the infant formula composition. This paper provides a narrative review of the current knowledge, unresolved questions, and future research needs in the area of HM fatty acid (FA) composition, with a particular focus on exploring appropriate intake levels of the essential FA linoleic acid (LA) in infant formula. The paper highlights a clear gap in clinical evidence as to the impact of LA levels in HM or formula on infant outcomes, such as growth, development, and long-term health. The available preclinical information suggests potential disadvantages of high LA intake in the early postnatal period. We recommend performing well-designed clinical intervention trials to create clarity on optimal levels of LA to achieve positive impacts on both short-term growth and development and long-term functional health outcomes.
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Affiliation(s)
| | | | - J Thomas Brenna
- Department of Pediatrics, University of Texas at Austin, Austin, TX, USA,Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Carlo Agostoni
- Pediatric Area, Fondazione IRCCS Ca’Granda- Ospedale Maggiore Policlinico, Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Philip C Calder
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | | | - Philippe Legrand
- Laboratoire de Biochimie-Nutrition Humaine, Agrocampus–French National Institute of Health and Medical Research, Rennes, France
| | | | | | - Eline M van der Beek
- Danone Nutricia Research, Utrecht, The Netherlands,Department of Pediatrics, University Medical Center, Groningen, The Netherlands
| | - Berthold V Koletzko
- Ludwig-Maximilians-Universität Munich, Department of Paediatrics, Dr von Hauner Children's Hospital, University of Munich Medical Center, Munich, Germany
| | - Beverly Muhlhausler
- Nutrition and Health Program, Health and Biosecurity, CSIRO, Adelaide, Australia,School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, Australia
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High Maternal Omega-3 Supplementation Dysregulates Body Weight and Leptin in Newborn Male and Female Rats: Implications for Hypothalamic Developmental Programming. Nutrients 2020; 13:nu13010089. [PMID: 33396616 PMCID: PMC7823471 DOI: 10.3390/nu13010089] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/22/2020] [Accepted: 12/25/2020] [Indexed: 12/20/2022] Open
Abstract
Maternal diet is critical for offspring development and long-term health. Here we investigated the effects of a poor maternal diet pre-conception and during pregnancy on metabolic outcomes and the developing hypothalamus in male and female offspring at birth. We hypothesised that offspring born to dams fed a diet high in fat and sugar (HFSD) peri-pregnancy will have disrupted metabolic outcomes. We also determined if these HFSD-related effects could be reversed by a shift to a healthier diet post-conception, in particular to a diet high in omega-3 polyunsaturated fatty acids (ω3 PUFAs), since ω3 PUFAs are considered essential for normal neurodevelopment. Unexpectedly, our data show that there are minimal negative effects of maternal HFSD on newborn pups. On the other hand, consumption of an ω3-replete diet during pregnancy altered several developmental parameters. As such, pups born to high-ω3-fed dams weighed less for their length, had reduced circulating leptin, and also displayed sex-specific disruption in the expression of hypothalamic neuropeptides. Collectively, our study shows that maternal intake of a diet rich in ω3 PUFAs during pregnancy may be detrimental for some metabolic developmental outcomes in the offspring. These data indicate the importance of a balanced dietary intake in pregnancy and highlight the need for further research into the impact of maternal ω3 intake on offspring development and long-term health.
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17
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Emami N, Alizadeh A, Moini A, Yaghmaei P, Shahhoseini M. Differences in fatty acid profiles and desaturation indices of abdominal subcutaneous adipose tissue between pregnant women with and without PCOS. Adipocyte 2020; 9:16-23. [PMID: 31906758 PMCID: PMC6959300 DOI: 10.1080/21623945.2019.1710021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The objective was to determine the differences in fatty acid (FA) profiles in subcutaneous adipose tissue (AT) between pregnant women with polycystic ovary syndrome (PCOS) and those without PCOS. FA profiles of AT samples from 13 PCOS and 32 non-PCOS, all of whom underwent caesarean section were compared using gas chromatography. Age and BMI in the two groups were similar. Twenty-one FAs were detected and the total saturated FA percentage of experimental groups was similar. While the total monounsaturated FA (MUFA) (p < 0.0004) and desaturase index (18:1 cis-9/18:0; p < 0.03) were higher in PCOS women than non-PCOS women, total polyunsaturated FA (PUFA) was lower in PCOS than non-PCOS women (p < 0.004). Docosahexaenoic acid level of the two groups was similar while α-linolenic acid and eicosapentaenoic acid levels were significantly (p < 0.05) lower in PCOS. Total trans-FA, C18:1 t9 and C18:2t were lower in PCOS women (p < 0.05). These results indicate differences in desaturase index, MUFA and PUFA, especially n-3 FA in AT between age and BMI-matched pregnant PCOS and non-PCOS pregnant subjects. Further studies are warranted to replicate these findings and to investigate potential changes in these profiles in non-pregnant PCOS women.
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Affiliation(s)
- Neda Emami
- Department of Biology, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - AliReza Alizadeh
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Breast Disease Research Center (BDRC), Tehran University of Medical Sciences, Tehran, Iran
- Department of Gynecology and Obstetrics, Arash Women’s Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Parichehreh Yaghmaei
- Department of Biology, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Maryam Shahhoseini
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
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Effect of Maternal Docosahexaenoic Acid (DHA) Supplementation on Offspring Neurodevelopment at 12 Months in India: A Randomized Controlled Trial. Nutrients 2020; 12:nu12103041. [PMID: 33023067 PMCID: PMC7600740 DOI: 10.3390/nu12103041] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022] Open
Abstract
Intake of dietary docosahexaenoic acid (DHA 22:6n-3) is very low among Indian pregnant women. Maternal supplementation during pregnancy and lactation may benefit offspring neurodevelopment. We conducted a double-blind, randomized, placebo-controlled trial to test the effectiveness of supplementing pregnant Indian women (singleton gestation) from ≤20 weeks through 6 months postpartum with 400 mg/d algal DHA compared to placebo on neurodevelopment of their offspring at 12 months. Of 3379 women screened, 1131 were found eligible; 957 were randomized. The primary outcome was infant neurodevelopment at 12 months, assessed using the Development Assessment Scale for Indian Infants (DASII). Both groups were well balanced on sociodemographic variables at baseline. More than 72% of women took >90% of their assigned treatment. Twenty-five serious adverse events (SAEs), none related to the intervention, (DHA group = 16; placebo = 9) were noted. Of 902 live births, 878 were followed up to 12 months; the DASII was administered to 863 infants. At 12 months, the mean development quotient (DQ) scores in the DHA and placebo groups were not statistically significant (96.6 ± 12.2 vs. 97.1 ± 13.0, p = 0.60). Supplementing mothers through pregnancy and lactation with 400 mg/d DHA did not impact offspring neurodevelopment at 12 months of age in this setting.
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19
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Leckie RL, Lehman DE, Gianaros PJ, Erickson KI, Sereika SM, Kuan DCH, Manuck SB, Ryan CM, Yao JK, Muldoon MF. The effects of omega-3 fatty acids on neuropsychological functioning and brain morphology in mid-life adults: a randomized clinical trial. Psychol Med 2020; 50:2425-2434. [PMID: 31581959 PMCID: PMC8109262 DOI: 10.1017/s0033291719002617] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND The diet of most adults is low in fish and, therefore, provides limited quantities of the long-chain, omega-3 fatty acids (LCn-3FAs), eicosapentaenoic and docosahexaenoic acids (EPA, DHA). Since these compounds serve important roles in the brain, we sought to determine if healthy adults with low-LCn-3FA consumption would exhibit improvements in neuropsychological performance and parallel changes in brain morphology following repletion through fish oil supplementation. METHODS In a randomized, controlled trial, 271 mid-life adults (30-54 years of age, 118 men, 153 women) consuming ⩽300 mg/day of LCn-3FAs received 18 weeks of supplementation with fish oil capsules (1400 mg/day of EPA and DHA) or matching placebo. All participants completed a neuropsychological test battery examining four cognitive domains: psychomotor speed, executive function, learning/episodic memory, and fluid intelligence. A subset of 122 underwent neuroimaging before and after supplementation to measure whole-brain and subcortical tissue volumes. RESULTS Capsule adherence was over 95%, participant blinding was verified, and red blood cell EPA and DHA levels increased as expected. Supplementation did not affect performance in any of the four cognitive domains. Exploratory analyses revealed that, compared to placebo, fish oil supplementation improved executive function in participants with low-baseline DHA levels. No changes were observed in any indicator of brain morphology. CONCLUSIONS In healthy mid-life adults reporting low-dietary intake, supplementation with LCn-3FAs in moderate dose for moderate duration did not affect neuropsychological performance or brain morphology. Whether salutary effects occur in individuals with particularly low-DHA exposure requires further study.
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Affiliation(s)
- Regina L. Leckie
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - David E. Lehman
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Peter J. Gianaros
- Psychology Department, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kirk I. Erickson
- Psychology Department, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Dora C. H. Kuan
- Psychology Department, University of Pittsburgh, Pittsburgh, PA, USA
| | - Stephen B. Manuck
- Psychology Department, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Jeffrey K. Yao
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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20
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Perinatal exposure to diets with different n-6:n-3 fatty acid ratios affects olfactory tissue fatty acid composition. Sci Rep 2020; 10:10785. [PMID: 32612195 PMCID: PMC7329853 DOI: 10.1038/s41598-020-67725-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/15/2020] [Indexed: 12/23/2022] Open
Abstract
The olfactory mucosa (OM) and the olfactory bulb (OB) are responsible for the detection and processing of olfactory signals. Like the brain and retina, they contain high levels of n-3 and n-6 polyunsaturated fatty acids (PUFAs), which are essential for the structure and function of neuronal and non-neuronal cells. Since the influence of the maternal diet on olfactory lipid profiles of the offspring has been poorly explored, we examined the effects of feeding mice during the perinatal period with diets containing an adequate linoleic acid level but either deficient in α-linolenic acid (ALA) or supplemented in n-3 long-chain PUFAs on the lipid composition of dams and weaning offspring olfactory tissues. In both the OM and OB, the low n-3 ALA diet led to a marked reduction in n-3 PUFAs with a concomitant increase in n-6 PUFAs, whereas consumption of the high n-3 PUFA diet reduced n-6 PUFAs and increased n-3 PUFAs. Structural analysis showed that the molecular species profiles of the main phospholipid classes of olfactory tissues from weaning pups were markedly affected by the maternal diets. This study demonstrates that the PUFA status of olfactory tissues is sensitive to diet composition from the early stages of development.
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21
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Spiller P, Hibbeln JR, Myers G, Vannice G, Golding J, Crawford MA, Strain JJ, Connor SL, Brenna JT, Kris-Etherton P, Holub BJ, Harris WS, Lands B, McNamara RK, Tlusty MF, Salem N, Carlson SE. An abundance of seafood consumption studies presents new opportunities to evaluate effects on neurocognitive development. Prostaglandins Leukot Essent Fatty Acids 2019; 151:8-13. [PMID: 31669935 PMCID: PMC6887098 DOI: 10.1016/j.plefa.2019.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 10/10/2019] [Indexed: 01/19/2023]
Abstract
The relationship between seafood eaten during pregnancy and neurocognition in offspring has been the subject of considerable scientific study for over 25 years. Evaluation of this question led two scientific advisory committees to the Dietary Guidelines for Americans (DGAC), the Food and Agriculture Organization of the United Nations with the World Health Organization (FAO/WHO), Health Canada, the European Food Safety Authority (EFSA), and the U.S. Food and Drug Administration (FDA) to conclude through 2014 that seafood consumed by pregnant women is likely to benefit the neurocognitive development of their children. The evidence they reviewed included between four and ten studies of seafood consumption during pregnancy that reported beneficial associations. In contrast there are now 29 seafood consumption studies available describing over 100,000 mothers-child pairs and 15 studies describing over 25,000 children who ate seafood. A systematic review of these studies using Nutrition Evaluation Systematic Review methodology is warranted to determine whether recent research corroborates, builds on, or significantly alters the previous conclusions. Studies that evaluate the integrated effects of seafood as a complete food more directly and completely evaluate impacts on neurocognition as compared to studies that evaluate individual nutritients or toxicological constituents in isolation. Here we address how the findings could add to our understanding of whether seafood consumed during pregnancy and early childhood affects neurocognition, including whether such effects are clinically meaningful, lasting, related to amounts consumed, and affected by any neurotoxicants that may be present, particularly mercury, which is present at varying levels in essentially all seafood. We provide the history, context and rationale for reexamining these questions in light of currently available data.
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Affiliation(s)
- Philip Spiller
- Former Director of the Office of Seafood, Center for Food Safety and Applied Nutrition, U.S., Food and Drug Administration (retired), USA
| | - Joseph R Hibbeln
- Acting Chief, Section on Nutritional Neurosciences, National Institute on Alcohol Abuse and Alcoholism, NIH, USA.
| | - Gary Myers
- Professor of Neurology, Pediatrics, and Environmental Medicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Gretchen Vannice
- Director of Nutrition Education and Research, Organic Technologies, Coshocton, OH, USA
| | - Jean Golding
- Emeritus Professor of Pediatric and Perinatal Epidemiology, Population Health Sciences, University of Bristol, Bristol, UK
| | - Michael A Crawford
- Division of Obstetrics and Gynaecology, Department of Surgery and Cancer, Imperial College London, UK
| | - J J Strain
- Emeritus Professor of Human Nutrition, Nutrition Innovation Centre for Food & Health, (NICHE), Ulster University, Coleraine, Northern Ireland, UK
| | - Sonja L Connor
- Research Associate Professor, Endocrinology, Diabetes and Clinical Nutrition, Oregon Health and Science University, Portland, Oregon, USA
| | - J Thomas Brenna
- Dell Pediatric Research Institute, Depts of Pediatrics, of Chemistry, and of Nutrition, University of Texas Austin, TX, USA
| | - Penny Kris-Etherton
- Distinguished Professor of Nutrition, Department of Nutritional Sciences, Penn State University, University Park, Pennsylvania, USA
| | - Bruce J Holub
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - William S Harris
- Department of Internal Medicine, University of South Dakota School of Medicine and OmegaQuant Analytics, LLC, Sioux Falls, SD, USA
| | - Bill Lands
- American Society for Nutrition, College Park, MD, USA
| | - Robert K McNamara
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine USA
| | - Michael F Tlusty
- School for the Environment, University of Massachusetts Boston, Boston, MA, USA
| | - Norman Salem
- Nutritional Lipids, DSM Nutritional Projects, Columbia, MD, USA
| | - Susan E Carlson
- University Distinguished Professor, Department of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS, USA
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22
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Branchiccela B, Castelli L, Corona M, Díaz-Cetti S, Invernizzi C, Martínez de la Escalera G, Mendoza Y, Santos E, Silva C, Zunino P, Antúnez K. Impact of nutritional stress on the honeybee colony health. Sci Rep 2019; 9:10156. [PMID: 31300738 PMCID: PMC6626013 DOI: 10.1038/s41598-019-46453-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 06/20/2019] [Indexed: 11/09/2022] Open
Abstract
Honeybees Apis mellifera are important pollinators of wild plants and commercial crops. For more than a decade, high percentages of honeybee colony losses have been reported worldwide. Nutritional stress due to habitat depletion, infection by different pests and pathogens and pesticide exposure has been proposed as the major causes. In this study we analyzed how nutritional stress affects colony strength and health. Two groups of colonies were set in a Eucalyptus grandis plantation at the beginning of the flowering period (autumn), replicating a natural scenario with a nutritionally poor food source. While both groups of colonies had access to the pollen available in this plantation, one was supplemented with a polyfloral pollen patty during the entire flowering period. In the short-term, colonies under nutritional stress (which consumed mainly E. grandis pollen) showed higher infection level with Nosema spp. and lower brood and adult bee population, compared to supplemented colonies. On the other hand, these supplemented colonies showed higher infection level with RNA viruses although infection levels were low compared to countries were viral infections have negative impacts. Nutritional stress also had long-term colony effects, because bee population did not recover in spring, as in supplemented colonies did. In conclusion, nutritional stress and Nosema spp. infection had a severe impact on colony strength with consequences in both short and long-term.
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Affiliation(s)
- B Branchiccela
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - L Castelli
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - M Corona
- Bee Research Laboratory United Stated Department of Agriculture, United States of America, Center Road 306, CP 20,705, Beltsville, Maryland, United States of America
| | - S Díaz-Cetti
- Sección Apicultura, Instituto de Investigación Agropecuaria, Route 50 km 11, CP 39173, Colonia, Uruguay
| | - C Invernizzi
- Sección Etología, Instituto de Biología, Facultad de Ciencias, Iguá 4225, CP 11400, Montevideo, Uruguay
| | - G Martínez de la Escalera
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - Y Mendoza
- Sección Apicultura, Instituto de Investigación Agropecuaria, Route 50 km 11, CP 39173, Colonia, Uruguay
| | - E Santos
- Sección Etología, Instituto de Biología, Facultad de Ciencias, Iguá 4225, CP 11400, Montevideo, Uruguay
| | - C Silva
- Sección Apicultura, Instituto de Investigación Agropecuaria, Route 50 km 11, CP 39173, Colonia, Uruguay
| | - P Zunino
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - K Antúnez
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay.
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23
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Zhang TT, Xu J, Wang YM, Xue CH. Health benefits of dietary marine DHA/EPA-enriched glycerophospholipids. Prog Lipid Res 2019; 75:100997. [DOI: 10.1016/j.plipres.2019.100997] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 07/04/2019] [Accepted: 07/04/2019] [Indexed: 02/07/2023]
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24
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Argaw A, Huybregts L, Wondafrash M, Kolsteren P, Belachew T, Worku BN, Abessa TG, Bouckaert KP. Neither n-3 Long-Chain PUFA Supplementation of Mothers through Lactation nor of Offspring in a Complementary Food Affects Child Overall or Social-Emotional Development: A 2 × 2 Factorial Randomized Controlled Trial in Rural Ethiopia. J Nutr 2019; 149:505-512. [PMID: 30544211 DOI: 10.1093/jn/nxy202] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/25/2018] [Accepted: 08/01/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The n-3 (ω-3) long-chain polyunsaturated fatty acid (LC-PUFA) docosahexaenoic acid (DHA) is essential for optimal brain development. There is a lack of evidence on the effect of postnatal n-3 LC-PUFA supplementation on child development in low-income countries. OBJECTIVE We evaluated the efficacy of fish-oil supplementation through lactation or complementary food supplementation on the development of children aged 6-24 mo in rural Ethiopia. METHODS We conducted a double-blind randomized controlled trial of n-3 LC-PUFA supplementation for 12 mo using fish-oil capsules [maternal intervention: 215 mg DHA + 285 mg eicosapentaenoic acid (EPA)] or a fish-oil-enriched complementary food supplement (child intervention: 169 mg DHA + 331 mg EPA). In total, 360 pairs of mothers and infants aged 6-12 mo were randomly assigned to 4 arms: maternal intervention and child control, child intervention and maternal control, maternal and child intervention, and maternal and child control. Primary outcomes were overall developmental performance with the use of a culturally adapted Denver II test that assesses personal-social, language, fine-motor, and gross-motor domains and social-emotional developmental performance using the Ages and Stages Questionnaire: Social Emotional at baseline and at 6 and 12 mo. We used mixed-effects models to estimate intervention effects on developmental performance over time (intervention × time interaction). RESULTS The evolution in overall and social-emotional developmental performance over time did not differ across study arms (intervention × time: F = 1.09, P = 0.35, and F = 0.61, P = 0.61, respectively). Effects did not change after adjustment for child age, birth order, and nutritional status; maternal age and education; wealth; family size; and breastfeeding frequency. Children's developmental performance significantly decreased during study follow-up (β: -0.03 SDs/mo; 95% CI: -0.04, -0.01 SD/mo; P < 0.01). CONCLUSIONS n-3 LC-PUFA supplementation does not affect overall or social-emotional development of children aged 6-24 mo in a low-income setting. Follow-up of the cohort is recommended to determine whether there are long-term effects of the intervention. This trial was registered at clinicaltrials.gov as NCT01817634.
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Affiliation(s)
- Alemayehu Argaw
- Department of Population and Family Health, Institute of Health, Jimma University, Jimma, Ethiopia.,Department of Food Technology, Safety, and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Lieven Huybregts
- Poverty, Health, and Nutrition Division, International Food Policy Research Institute, Washington, DC
| | - Mekitie Wondafrash
- Department of Population and Family Health, Institute of Health, Jimma University, Jimma, Ethiopia.,Department of Food Technology, Safety, and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Patrick Kolsteren
- Department of Food Technology, Safety, and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Tefera Belachew
- Department of Population and Family Health, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Berhanu N Worku
- Department of Psychology, Jimma University, Jimma, Ethiopia.,Rehabilitation Research Center (REVAL), Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | - Teklu G Abessa
- Special Needs and Inclusive Education, College of Education and Behavioral Sciences, Jimma University, Jimma, Ethiopia.,Rehabilitation Research Center (REVAL), Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | - Kimberley P Bouckaert
- Department of Food Technology, Safety, and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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25
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Yam K, Schipper L, Reemst K, Ruigrok SR, Abbink MR, Hoeijmakers L, Naninck EFG, Zarekiani P, Oosting A, Van Der Beek EM, Lucassen PJ, Korosi A. Increasing availability of ω‐3 fatty acid in the early‐life diet prevents the early‐life stress‐induced cognitive impairments without affecting metabolic alterations. FASEB J 2019; 33:5729-5740. [DOI: 10.1096/fj.201802297r] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Kit‐Yi Yam
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | | | - Kitty Reemst
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | - Silvie R. Ruigrok
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | - Maralinde R. Abbink
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | - Lianne Hoeijmakers
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | - Eva F. G. Naninck
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | - Parand Zarekiani
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | | | - Eline M. Van Der Beek
- Danone Nutricia Research Utrecht The Netherlands
- Department of PediatricsUniversity Medical Centre GroningenUniversity of Groningen Groningen The Netherlands
| | - Paul J. Lucassen
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
| | - Aniko Korosi
- Centre for NeuroscienceSwammerdam Institute for Life SciencesUniversity of Amsterdam Amsterdam The Netherlands
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26
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Perinatal Nutrition and Programmed Risk for Neuropsychiatric Disorders: A Focus on Animal Models. Biol Psychiatry 2019; 85:122-134. [PMID: 30293647 PMCID: PMC6309477 DOI: 10.1016/j.biopsych.2018.08.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 01/02/2023]
Abstract
Maternal nutrition is critically important for fetal development. Recent human studies demonstrate a strong connection between diet during pregnancy and offspring risk for neuropsychiatric disorders including depression, anxiety, and attention-deficit/hyperactivity disorder. Animal models have emerged as a crucial tool for understanding maternal nutrition's contribution to prenatal programming and the later development of neuropsychiatric disorders. This review highlights preclinical studies examining how maternal consumption of the three macronutrients (protein, fats, and carbohydrates) influence offspring negative-valence behaviors relevant to neuropsychiatric disorders. We highlight the translational aspects of animal models and so examine exposure periods that mirror the neurodevelopmental stages of human gestation. Because of our emphasis on programmed changes in neurobehavioral development, studies that continue diet exposure until assessment in adulthood are not discussed. The presented research provides a strong foundation of preclinical evidence of nutritional programming of neurobehavioral impairments. Alterations in risk assessment and response were observed alongside neurodevelopmental impairments related to neurogenesis, synaptogenesis, and synaptic plasticity. To date, the large majority of studies utilized rodent models, and the field could benefit from additional study of large-animal models. Additional future directions are discussed, including the need for further studies examining how sex as a biological variable affects the contribution of maternal nutrition to prenatal programming.
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27
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Fatty acid composition in maternal and foetal muscle tissues of beaver (Castor fiber). Biologia (Bratisl) 2018. [DOI: 10.2478/s11756-018-0150-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Smolders S, Notter T, Smolders SMT, Rigo JM, Brône B. Controversies and prospects about microglia in maternal immune activation models for neurodevelopmental disorders. Brain Behav Immun 2018; 73:51-65. [PMID: 29870753 DOI: 10.1016/j.bbi.2018.06.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 05/26/2018] [Accepted: 06/01/2018] [Indexed: 12/16/2022] Open
Abstract
Activation of the maternal immune system during pregnancy is a well-established risk factor for neuropsychiatric disease in the offspring, yet, the underlying mechanisms leading to altered brain function remain largely undefined. Microglia, the resident immune cells of the brain, are key to adequate development of the central nervous system (CNS), and are prime candidates to mediate maternal immune activation (MIA)-induced brain abnormalities. As such, the effects of MIA on the immunological phenotype of microglia has been widely investigated. However, contradicting results due to differences in read-out and methodological approaches impede final conclusions on MIA-induced microglial alterations. The aim of this review is to critically discuss the evidence for an activated microglial phenotype upon MIA.
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Affiliation(s)
- Silke Smolders
- Uhasselt - BIOMED, Hasselt, Belgium; Laboratory of Neuronal Differentiation, VIB Center for the Biology of Disease, Leuven and Center for Human Genetics, KU Leuven Leuven, Belgium.
| | - Tina Notter
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland.
| | - Sophie M T Smolders
- Uhasselt - BIOMED, Hasselt, Belgium; INSERM, UMR S 1130, Université Pierre et Marie Curie Paris, France; CNRS, UMR 8246, Université Pierre et Marie Curie Paris, France; UM 119 NPS, Université Pierre et Marie Curie Paris, France.
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29
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Honey bees dance faster for pollen that complements colony essential fatty acid deficiency. Behav Ecol Sociobiol 2017. [DOI: 10.1007/s00265-017-2394-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Metherel AH, Kitson AP, Domenichiello AF, Lacombe RJS, Hopperton KE, Trépanier MO, Alashmali SM, Lin L, Bazinet RP. Docosahexaenoic acid (DHA) accretion in the placenta but not the fetus is matched by plasma unesterified DHA uptake rates in pregnant Long Evans rats. Placenta 2017; 58:90-97. [PMID: 28962703 DOI: 10.1016/j.placenta.2017.08.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/31/2017] [Accepted: 08/29/2017] [Indexed: 12/12/2022]
Abstract
Maternal delivery of docosahexaenoic acid (DHA, 22:6n-3) to the developing fetus via the placenta is required for fetal neurodevelopment, and is the only mechanism by which DHA can be accreted in the fetus. The aim of the current study was to utilize a balance model of DHA accretion combined with kinetic measures of serum unesterified DHA uptake to better understand the mechanism by which maternal DHA is delivered to the fetus via the placenta. Female rats maintained on a 2% α-linolenic acid diet free of DHA for 56 days were mated, and for balance analysis, sacrificed at 18 days of pregnancy, and fetus, placenta and maternal carcass fatty acid concentration were determined. For tissue DHA uptake, pregnant dams (14-18 days) were infused for 5 min with radiolabeled 14C-DHA and kinetic modeling was used to determine fetal and placental serum unesterified DHA uptake rates. DHA accretion rates in the fetus were determined to be 38 ± 2 nmol/d/g, 859 ± 100 nmol/d/litter and 74 ± 3 nmol/d/pup, which are all higher (P < 0.05) than the fetal serum unesterified DHA uptake rates of 16 ± 6 nmol/d/g, 239 ± 145 nmol/d/litter and 14 ± 8 nmol/d/pup. No differences (p > 0.05) in placental DHA accretion rates versus serum unesterified DHA uptake rates were observed as values varied only 6-35% between studies. No differences in placental accretion and uptake rates suggests that serum unesterified DHA is a significant pool for the maternal-placental transfer of DHA, and lower fetal DHA uptake compared to accretion supports remodeling of placental DHA for delivery to the fetus.
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Affiliation(s)
- Adam H Metherel
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada.
| | - Alex P Kitson
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - Anthony F Domenichiello
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - R J Scott Lacombe
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - Kathryn E Hopperton
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - Marc-Olivier Trépanier
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - Shoug M Alashmali
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - Lin Lin
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
| | - Richard P Bazinet
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario M5S 3E2, Canada
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31
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Metherel AH, Kitson AP, Domenichiello AF, Lacombe RJS, Hopperton KE, Trépanier MO, Alashmali SM, Lin L, Bazinet RP. Maternal liver docosahexaenoic acid (DHA) stores are increased via higher serum unesterified DHA uptake in pregnant long Evans rats. J Nutr Biochem 2017. [PMID: 28628798 DOI: 10.1016/j.jnutbio.2017.05.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Maternal docosahexaenoic acid (DHA, 22:6n-3) supplies the developing fetus during pregnancy; however, the mechanisms are unclear. We utilized pregnant rats to determine rates of DHA accretion, tissue unesterified DHA uptake and whole-body DHA synthesis-secretion. Female rats maintained on a DHA-free, 2% α-linolenic acid diet were either:1) sacrificed at 56 days for baseline measures, 2) mated and sacrificed at 14-18 days of pregnancy or 3) or sacrificed at 14-18 days as age-matched virgin controls. Maternal brain, adipose, liver and whole body fatty acid concentrations was determined for balance analysis, and kinetic modeling was used to determine brain and liver plasma unesterified DHA uptake and whole-body DHA synthesis-secretion rates. Total liver DHA was significantly higher in pregnant (95±5 μmol) versus non-pregnant (49±5) rats with no differences in whole-body DHA synthesis-secretion rates. However, liver uptake of plasma unesterified DHA was 3.8-fold higher in pregnant animals compared to non-pregnant controls, and periuterine adipose DHA was lower in pregnant (0.89±0.09 μmol/g) versus non-pregnant (1.26±0.06) rats. In conclusion, higher liver DHA accretion during pregnancy appears to be driven by higher unesterified DHA uptake, potentially via DHA mobilization from periuterine adipose for delivery to the fetus during the brain growth spurt.
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Affiliation(s)
- Adam H Metherel
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2.
| | - Alex P Kitson
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - Anthony F Domenichiello
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - R J Scott Lacombe
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - Kathryn E Hopperton
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - Marc-Olivier Trépanier
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - Shoug M Alashmali
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - Lin Lin
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
| | - Richard P Bazinet
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, 150 College St., Toronto, Ontario, Canada, M5S 3E2
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32
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Picklo MJ, Johnson L, Idso J. PPAR mRNA Levels Are Modified by Dietary n-3 Fatty Acid Restriction and Energy Restriction in the Brain and Liver of Growing Rats. J Nutr 2017; 147:161-169. [PMID: 27927977 DOI: 10.3945/jn.116.237107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/07/2016] [Accepted: 11/15/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Without dietary sources of n-3 (ω-3) long-chain polyunsaturated fatty acids (LCPUFAs), α-linolenic acid (ALA; 18:3n-3) is the precursor for docosahexaenoic acid (DHA; 22:6n-3). It is not known how energy restriction (ER) affects ALA conversion to DHA. OBJECTIVE We tested the hypothesis that ER reduces n-3 LCPUFA concentrations in tissues of growing rats fed diets replete with and deficient in ALA. METHODS Male Sprague-Dawley rats (23 d old) were provided AIN93G diets (4 wk) made with soybean oil (SO; ALA sufficient) or corn oil (CO; ALA deficient) providing 16% of energy as fat. For each dietary oil, ER rats were individually pair-fed 75% of another rat's ad libitum (AL) intake. Fatty acid (FA) concentrations in brain regions, liver, and plasma were analyzed. Expression of peroxisome proliferator-activated receptors (PPARs), uncoupling proteins (UCPs), and mitochondrial DNA was analyzed in the brain and liver. RESULTS AL rats consuming CO had a 65% lower concentration of n-3 docosapentaenoic acid (22:5n-3) and a 10% lower DHA concentration in the cerebral cortex and cerebellum than did the SO-AL group. ER did not alter cerebral n-3 LCPUFA status. Liver n-3 LCPUFA concentrations were reduced in rats fed CO compared with SO. ER reduced hepatic linoleic acid (18:2n-6), ALA, and arachidonic acid (20:4n-6) regardless of oil. ER and n-3 FA deficiency had independent effects on the mRNA levels of Pparα, Pparβ/δ, and Pparγ in the liver, cerebral cortex, and cerebellum. ER reduced Ucp3 mRNA by nearly 50% in the cerebral cortex, cerebellum, and liver, and Ucp5 mRNA was 30% lower in the cerebellum of rats receiving the CO diet. CONCLUSIONS Small perturbations in PUFA concentration and ER modify the mRNA levels of Ppar and Ucp in the juvenile rat brain. More research is needed to identify the long-term physiologic and behavioral impacts of ER and PUFA restriction in the juvenile brain.
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Affiliation(s)
- Matthew J Picklo
- USDA Agricultural Research Service Grand Forks Human Nutrition Research Center, Grand Forks, ND
| | - LuAnn Johnson
- USDA Agricultural Research Service Grand Forks Human Nutrition Research Center, Grand Forks, ND
| | - Joseph Idso
- USDA Agricultural Research Service Grand Forks Human Nutrition Research Center, Grand Forks, ND
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33
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Costa LR, Macêdo PC, de Melo JSV, Freitas CM, Alves AS, Barbosa HDM, Lira E, Fernandes MP, Batista-de-Oliveira-Hornsby M, Lagranha C. Safflower (Catharmus tinctorius L.) oil supplementation in overnourished rats during early neonatal development: effects on heart and liver function in the adult. Appl Physiol Nutr Metab 2016; 41:1271-1277. [DOI: 10.1139/apnm-2016-0191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carthamus tinctorius L. (common name: safflower) is an herb whose extracted oil (safflower oil) has been employed in both alternative and conventional medicine in the treatment of disease. Overnutrition during early postnatal life can increase the lifetime risk of obesity and metabolic syndrome. Here we investigate the effect of safflower oil supplementation given during a critical early developmental stage on the eventual occurrence of metabolic disease in overnourished rats. Groups of overnourished or adequately nourished rats were randomly assigned into 2 additional groups for supplementation with either safflower oil (SF) or vehicle for 7 to 30 days. Murinometric data and weights were examined. Serum was collected for measurement of glucose, cholesterol, high-density lipoprotein cholesterol, and triglycerides. Heart and liver oxidative status were also measured. Overnutrition for 7–30 days induced a significant increase in body weight and in values for abdominal circumference, thoracic circumference, body length, and body mass index. SF supplementation did not attenuate the effect of overnutrition on any of these parameters. In addition, overnutrition increased levels of glucose, triglycerides, and very low-density lipid compared with normal controls, but SF supplementation had no effect on these parameters. Measures of oxidative status in heart or liver were not influenced by overnutrition. However, oxidative measures were altered by SF supplementation in both of these organs. The present study reveals that nutritional manipulation during early development induces detrimental effects on metabolism in the adult that are not ameliorated by supplemental SF.
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Affiliation(s)
- Laís Ribeiro Costa
- Department of Nutrition/Centro de Ciencias da Saude (CCS). Federal University of Pernambuco, Campus of Recife, Recife, PE 55608-680, Brazil
| | - Patrícia Cavalcanti Macêdo
- Department of Nutrition/Centro de Ciencias da Saude (CCS). Federal University of Pernambuco, Campus of Recife, Recife, PE 55608-680, Brazil
| | - Janatar Stella Vasconcelos de Melo
- Department of Nutrition/Centro de Ciencias da Saude (CCS). Federal University of Pernambuco, Campus of Recife, Recife, PE 55608-680, Brazil
| | - Cristiane Moura Freitas
- Laboratory of Biochemistry and Exercise Biochemistry, Federal University of Pernambuco, Campus of Vitoria de Santo Antao, Vitoria de Santo Antao, PE, Brazil
| | - Aiany Simoes Alves
- Laboratory of Biochemistry and Exercise Biochemistry, Federal University of Pernambuco, Campus of Vitoria de Santo Antao, Vitoria de Santo Antao, PE, Brazil
| | - Humberto de Moura Barbosa
- Department of Physiology and Pharmacology/Centro de Ciências Biológicas (CCB), Federal University of Pernambuco, Campus of Recife, Recife, PE, Brazil
| | - Eduardo Lira
- Department of Physiology and Pharmacology/Centro de Ciências Biológicas (CCB), Federal University of Pernambuco, Campus of Recife, Recife, PE, Brazil
| | - Mariana Pinheiro Fernandes
- Laboratory of Biochemistry and Exercise Biochemistry, Federal University of Pernambuco, Campus of Vitoria de Santo Antao, Vitoria de Santo Antao, PE, Brazil
| | | | - Claudia Lagranha
- Laboratory of Biochemistry and Exercise Biochemistry, Federal University of Pernambuco, Campus of Vitoria de Santo Antao, Vitoria de Santo Antao, PE, Brazil
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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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Brenna JT. Arachidonic acid needed in infant formula when docosahexaenoic acid is present. Nutr Rev 2016; 74:329-36. [PMID: 27013482 DOI: 10.1093/nutrit/nuw007] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Recently, the European Food Safety Authority asserted that arachidonic acid (ARA) is an optional nutrient for the term infant even when docosahexaenoic acid (DHA) is present. The brief rationale is based on an explicit, widespread misapplication of the concept of "essential fatty acids" to linoleic acid that implies it is uniquely required as a nutrient per se. Linoleic acid prevents acute clinical symptoms caused by polyunsaturated fatty acid-deficient diets and is the major precursor for ARA in most human diets. Experimental diets with ARA as the sole n-6 similarly prevent symptoms but at a lower energy percentage than linoleic acid and show ARA is a precursor for linoleic acid. The absence of consistent evidence of ARA benefit from randomized controlled trials is apparently an issue as well. This review highlights basic and clinical research relevant to ARA requirements as an adjunct to DHA in infancy. ARA is a major structural central nervous system component, where it rapidly accumulates perinatally and is required for signaling. Tracer studies show that ARA-fed infants derive about half of their total body ARA from dietary preformed ARA. Clinically, of the 3 cohorts of term infants studied with designs isolating the effects of ARA (DHA-only vs DHA+ARA), none considered ARA-specific outcomes such as vascular or immune function; the study with the highest ARA level showed significant neurocognitive benefit. All breastfed term infants of adequately nourished mothers consume both DHA and ARA. The burden of proof to substantially deviate from the composition of breastmilk is greater than that available from inherently empirical human randomized controlled trial evidence. Infant formulas with DHA but without ARA risk harm from suppression of ARA-mediated metabolism manifest among the many unstudied functions of ARA.
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Affiliation(s)
- J Thomas Brenna
- J.T. Brenna is with the Division of Nutritional Sciences, Cornell University, Ithaca, New York, USA.
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Kitson AP, Metherel AH, Chen CT, Domenichiello AF, Trépanier MO, Berger A, Bazinet RP. Effect of dietary docosahexaenoic acid (DHA) in phospholipids or triglycerides on brain DHA uptake and accretion. J Nutr Biochem 2016; 33:91-102. [PMID: 27135386 DOI: 10.1016/j.jnutbio.2016.02.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/27/2016] [Accepted: 02/11/2016] [Indexed: 11/28/2022]
Abstract
Tracer studies suggest that phospholipid DHA (PL-DHA) more effectively targets the brain than triglyceride DHA (TAG-DHA), although the mechanism and whether this translates into higher brain DHA concentrations are not clear. Rats were gavaged with [U-(3)H]PL-DHA and [U-(3)H]TAG-DHA and blood sampled over 6h prior to collection of brain regions and other tissues. In another experiment, rats were supplemented for 4weeks with TAG-DHA (fish oil), PL-DHA (roe PL) or a mixture of both for comparison to a low-omega-3 diet. Brain regions and other tissues were collected, and blood was sampled weekly. DHA accretion rates were estimated using the balance method. [U-(3)H]PL-DHA rats had higher radioactivity in cerebellum, hippocampus and remainder of brain, with no differences in other tissues despite higher serum lipid radioactivity in [U-(3)H]TAG-DHA rats. TAG-DHA, PL-DHA or a mixture were equally effective at increasing brain DHA. There were no differences between DHA-supplemented groups in brain region, whole-body, or tissue DHA accretion rates except heart and serum TAG where the PL-DHA/TAG-DHA blend was higher than TAG-DHA. Apparent DHA β-oxidation was not different between DHA-supplemented groups. This indicates that more labeled DHA enters the brain when consumed as PL; however, this may not translate into higher brain DHA concentrations.
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Affiliation(s)
- Alex P Kitson
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, M5S3E2, Canada
| | - Adam H Metherel
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, M5S3E2, Canada
| | - Chuck T Chen
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, M5S3E2, Canada
| | | | - Marc-Olivier Trépanier
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, M5S3E2, Canada
| | - Alvin Berger
- Arctic Nutrition AS, NO-6155, Ørsta, Norway; Department of Food Science & Nutrition, University of Minnesota, St. Paul, MN, 55108-1038, USA
| | - Richard P Bazinet
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, M5S3E2, Canada.
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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: 33] [Impact Index Per Article: 4.1] [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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Abstract
Docosahexaenoic acid (DHA) is the predominant omega-3 (n-3) polyunsaturated fatty acid (PUFA) found in the brain and can affect neurological function by modulating signal transduction pathways, neurotransmission, neurogenesis, myelination, membrane receptor function, synaptic plasticity, neuroinflammation, membrane integrity and membrane organization. DHA is rapidly accumulated in the brain during gestation and early infancy, and the availability of DHA via transfer from maternal stores impacts the degree of DHA incorporation into neural tissues. The consumption of DHA leads to many positive physiological and behavioral effects, including those on cognition. Advanced cognitive function is uniquely human, and the optimal development and aging of cognitive abilities has profound impacts on quality of life, productivity, and advancement of society in general. However, the modern diet typically lacks appreciable amounts of DHA. Therefore, in modern populations, maintaining optimal levels of DHA in the brain throughout the lifespan likely requires obtaining preformed DHA via dietary or supplemental sources. In this review, we examine the role of DHA in optimal cognition during development, adulthood, and aging with a focus on human evidence and putative mechanisms of action.
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Weiser MJ, Butt CM, Mohajeri MH. Docosahexaenoic Acid and Cognition throughout the Lifespan. Nutrients 2016; 8:99. [PMID: 26901223 PMCID: PMC4772061 DOI: 10.3390/nu8020099] [Citation(s) in RCA: 216] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 01/26/2016] [Accepted: 01/28/2016] [Indexed: 12/30/2022] Open
Abstract
Docosahexaenoic acid (DHA) is the predominant omega-3 (n-3) polyunsaturated fatty acid (PUFA) found in the brain and can affect neurological function by modulating signal transduction pathways, neurotransmission, neurogenesis, myelination, membrane receptor function, synaptic plasticity, neuroinflammation, membrane integrity and membrane organization. DHA is rapidly accumulated in the brain during gestation and early infancy, and the availability of DHA via transfer from maternal stores impacts the degree of DHA incorporation into neural tissues. The consumption of DHA leads to many positive physiological and behavioral effects, including those on cognition. Advanced cognitive function is uniquely human, and the optimal development and aging of cognitive abilities has profound impacts on quality of life, productivity, and advancement of society in general. However, the modern diet typically lacks appreciable amounts of DHA. Therefore, in modern populations, maintaining optimal levels of DHA in the brain throughout the lifespan likely requires obtaining preformed DHA via dietary or supplemental sources. In this review, we examine the role of DHA in optimal cognition during development, adulthood, and aging with a focus on human evidence and putative mechanisms of action.
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Affiliation(s)
- Michael J Weiser
- DSM Nutritional Products, R&D Human Nutrition and Health, Boulder, CO, USA.
| | - Christopher M Butt
- DSM Nutritional Products, R&D Human Nutrition and Health, Boulder, CO, USA.
| | - M Hasan Mohajeri
- DSM Nutritional Products, R&D Human Nutrition and Health, Basel, Switzerland.
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Brenna JT. Long-chain polyunsaturated fatty acids and the preterm infant: a case study in developmentally sensitive nutrient needs in the United States. Am J Clin Nutr 2016; 103:606S-15S. [PMID: 26791188 PMCID: PMC4733252 DOI: 10.3945/ajcn.114.103994] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The vast majority of infant formulas in the United States contain the long-chain polyunsaturated fatty acids (PUFAs) docosahexaenoic acid (22:6n-3) and arachidonic acid (20:4n-6), which were first permitted by the US Food and Drug Administration in 2001. As a scientific case study, preclinical animal studies of these nutrients definitively influenced the design and interpretation of human clinical studies. Early studies were tied to the availability of test substances, and in hindsight suggest re-evaluation of the essential fatty acid concept in light of the totality of available evidence. Research in the 1950s established the essentiality of n-6 PUFAs for skin integrity; however, widespread recognition of the essentiality of n-3 PUFAs came decades later despite compelling evidence of their significance. Barriers to an understanding of the essentiality of n-3 PUFAs were as follows: 1) their role is in neural function, which is measured only with difficulty compared with skin lesions and growth faltering that are apparent for n-6 PUFAs; 2) the experimental use of vegetable oils as PUFA sources that contain the inefficiently used C18 PUFAs rather than the operative C20 and C22 PUFAs; 3) the shift from reliance on high-quality animal studies to define mechanisms that established the required nutrients in the first part of the 20th century to inherently challenging human studies. Advances in nutrition of premature infants require the best practices and opinions available, taking into account the totality of preclinical and clinical evidence.
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MESH Headings
- Animals
- Child Development
- Congresses as Topic
- Evidence-Based Medicine
- Fatty Acids, Essential/deficiency
- Fatty Acids, Essential/metabolism
- Fatty Acids, Essential/therapeutic use
- Fatty Acids, Omega-3/administration & dosage
- Fatty Acids, Omega-3/metabolism
- Fatty Acids, Omega-3/therapeutic use
- Fatty Acids, Omega-6/administration & dosage
- Fatty Acids, Omega-6/metabolism
- Fatty Acids, Omega-6/therapeutic use
- Humans
- Infant Formula/chemistry
- Infant Formula/standards
- Infant Nutritional Physiological Phenomena
- Infant, Newborn
- Neurogenesis
- Nutritional Requirements
- Practice Guidelines as Topic
- Premature Birth/diet therapy
- United States
- United States Food and Drug Administration
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Affiliation(s)
- J Thomas Brenna
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
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Abstract
Deficiency in essential omega-3 polyunsaturated fatty acids (PUFAs), particularly the long-chain form of docosahexaenoic acid (DHA), has been linked to health problems in mammals, including many mental disorders and reduced cognitive performance. Insects have very low long-chain PUFA concentrations, and the effect of omega-3 deficiency on cognition in insects has not been studied. We show a low omega-6:3 ratio of pollen collected by honey bee colonies in heterogenous landscapes and in many hand-collected pollens that we analyzed. We identified Eucalyptus as an important bee-forage plant particularly poor in omega-3 and high in the omega-6:3 ratio. We tested the effect of dietary omega-3 deficiency on olfactory and tactile associative learning of the economically highly valued honey bee. Bees fed either of two omega-3-poor diets, or Eucalyptus pollen, showed greatly reduced learning abilities in conditioned proboscis-extension assays compared with those fed omega-3-rich diets, or omega-3-rich pollen mixture. The effect on performance was not due to reduced sucrose sensitivity. Omega-3 deficiency also led to smaller hypopharyngeal glands. Bee brains contained high omega-3 concentrations, which were only slightly affected by diet, suggesting additional peripheral effects on learning. The shift from a low to high omega-6:3 ratio in the Western human diet is deemed a primary cause of many diseases and reduced mental health. A similar shift seems to be occurring in bee forage, possibly an important factor in colony declines. Our study shows the detrimental effect on cognitive performance of omega-3 deficiency in a nonmammal.
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Sex-Specific Effects of Diets High in Unsaturated Fatty Acids on Spatial Learning and Memory in Guinea Pigs. PLoS One 2015; 10:e0140485. [PMID: 26469777 PMCID: PMC4607430 DOI: 10.1371/journal.pone.0140485] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 09/25/2015] [Indexed: 12/17/2022] Open
Abstract
Unsaturated fatty acids (UFAs), including omega-3, omega-6 polyunsaturated and omega-9 monounsaturated fatty acids, are essential components and modulators of neuromembranes and may affect various aspects of physiology and cognition. UFAs are suggested to positively affect spatial learning and memory and also to diminish the negative consequences of physiological stress on cognitive abilities. Due to pronounced sex differences in neurophysiological functions, we hypothesize that these UFA-related effects might differ between male and female individuals. We therefore determined the effects of dietary UFAs on cognitive performances in a radial-Y-maze in male and female guinea pigs in relation to saliva cortisol concentrations, a marker for physiological stress. Animals were assigned to four treatment groups and maintained on diets enriched in either chia seeds (omega-3), walnuts (omega-6), or peanuts (omega-9), or a control diet. Female learning abilities throughout a three-day learning phase were positively affected by omega-3 and omega-9, as determined by a decreasing latency to pass the test and the number of conducted errors, while males generally showed distinct learning abilities, irrespective of the diet. A sex difference in learning performances was found in the control group, with males outperforming females, which was not detected in the UFA-supplemented groups. This was paralleled by significantly increased saliva cortisol concentrations in males throughout the cognition test compared to females. Three days after this learning phase, UFA-supplemented males and all females showed unchanged performances, while control males showed an increased latency and therefore an impaired performance. These results were corroborated by pronounced differences in the plasma UFA-status, corresponding to the different dietary treatments. Our findings indicate sex-specific effects of dietary UFAs, apparently enhancing spatial learning abilities only in females and protecting males from long-term memory impairment, while male learning abilities seem to be more strongly affected by an acute physiological stress response to the maze task.
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Prenatal Docosahexaenoic Acid Supplementation and Offspring Development at 18 Months: Randomized Controlled Trial. PLoS One 2015; 10:e0120065. [PMID: 26262896 PMCID: PMC4532364 DOI: 10.1371/journal.pone.0120065] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 01/26/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE We evaluated the effects of prenatal docosahexaenoic acid (DHA) supplementation on offspring development at 18 months of age. DESIGN Randomized placebo double-blind controlled trial. SETTINGS Cuernavaca, Mexico. PARTICIPANTS AND METHODS We followed up offspring (n = 730; 75% of the birth cohort) of women in Mexico who participated in a trial of DHA supplementation during the latter half of pregnancy. We assessed the effect of the intervention on child development and the potential modifying effects of gravidity, gender, SES, and quality of the home environment. INTERVENTIONS OR MAIN EXPOSURES 400 mg/day of algal DHA. OUTCOME MEASURES Child development at 18 months of age measured using the Spanish version of the Bayley Scales of Infant Development-II. We calculated standardized psychomotor and mental development indices, and behavior rating scale scores. RESULTS Intent-to-treat differences (DHA-control) were: Psychomotor Developmental Index -0.90 (95% CI: -2.35, 0.56), Mental Developmental Index -0.26 (95% CI: -1.63, 1.10) and Behavior Rating Scale -0.01 (95% CI: -0.95, 0.94). Prenatal DHA intake attenuated the positive association between home environment and psychomotor development index observed in the control group (p for interaction = 0.03) suggesting potential benefits for children living in home environments characterized by reduced caregiver interactions and opportunities for early childhood stimulation. CONCLUSIONS Prenatal DHA supplementation in a population with low intakes of DHA had no effects on offspring development at 18 months of age although there may be some benefit for infants from poor quality home environments. TRIAL REGISTRATION Clinicaltrials.gov NCT00646360.
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Domenichiello AF, Kitson AP, Bazinet RP. Is docosahexaenoic acid synthesis from α-linolenic acid sufficient to supply the adult brain? Prog Lipid Res 2015; 59:54-66. [DOI: 10.1016/j.plipres.2015.04.002] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 04/09/2015] [Indexed: 12/13/2022]
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High-Oleic Ready-to-Use Therapeutic Food Maintains Docosahexaenoic Acid Status in Severe Malnutrition. J Pediatr Gastroenterol Nutr 2015; 61:138-43. [PMID: 25633498 PMCID: PMC4483140 DOI: 10.1097/mpg.0000000000000741] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES Ready-to-use therapeutic food (RUTF) is the preferred treatment for uncomplicated severe acute malnutrition. It contains large amounts of linoleic acid and little α-linolenic acid, which may reduce the availability of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) to the recovering child. A novel high-oleic RUTF (HO-RUTF) was developed with less linoleic acid to determine its effect on DHA and EPA status. METHODS We conducted a prospective, randomized, double-blind clinical effectiveness trial treating rural Malawian children with severe acute malnutrition. Children were treated with either HO-RUTF or standard RUTF. Plasma phospholipid fatty acid status was measured on enrollment and after 4 weeks and compared between the 2 intervention groups. RESULTS Among the 141 children enrolled, 48 of 71 receiving HO-RUTF and 50 of 70 receiving RUTF recovered. Plasma phospholipid samples were analyzed from 43 children consuming HO-RUTF and 35 children consuming RUTF. The change in DHA content during the first 4 weeks was +4% and -25% in the HO-RUTF and RUTF groups, respectively (P = 0.04). For EPA, the change in content was 63% and -24% in the HO-RUTF and RUTF groups, respectively (P < 0.001). For arachidonic acid, the change in content was -3% and 13% in the HO-RUTF and RUTF groups, respectively (P < 0.009). CONCLUSIONS The changes in DHA and EPA seen in the children treated with HO-RUTF warrant further investigation because they suggest that HO-RUTF support improved polyunsaturated fatty acid status, necessary for neural development and recovery.
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Jimenez EY, Mangani C, Ashorn P, Harris WS, Maleta K, Dewey KG. Breast milk from women living near Lake Malawi is high in docosahexaenoic acid and arachidonic acid. Prostaglandins Leukot Essent Fatty Acids 2015; 95:71-8. [PMID: 25601798 DOI: 10.1016/j.plefa.2014.12.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 12/02/2014] [Accepted: 12/03/2014] [Indexed: 11/21/2022]
Abstract
Adequate long-chain polyunsaturated fatty acid (LCPUFA) intake is critical during the fetal and infant periods. We quantified fatty acid content of breast milk (n=718) and plasma from six month old infants (n=412) in southern Malawi, and in usipa (n=3), a small dried fish from Lake Malawi. Compared to global norms, Malawian breast milk fatty acid content (% of total fatty acids) was well above average levels of arachidonic acid [ARA] (0.69% vs. 0.47%) and docosahexaenoic acid [DHA] (0.73% vs. 0.32%). Average Malawian infant plasma ARA (7.5%) and DHA (3.8%) levels were comparable to those reported in infants consuming breast milk with similar fatty acid content. The amounts (mg) of DHA, EPA and ARA provided by a 3 oz (85 g) portion of dried usipa (1439, 659 and 360, respectively) are considerably higher than those for dried salmon. Usipa may be an important source of LCPUFA for populations in this region.
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Affiliation(s)
- E Yakes Jimenez
- Departments of Individual, Family and Community Education and Family and Community Medicine, University of New Mexico, Albuquerque, NM, USA
| | - C Mangani
- Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi; Department of International Health, University of Tampere School of Medicine, Tampere, Finland; Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - P Ashorn
- Department of International Health, University of Tampere School of Medicine, Tampere, Finland; Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - W S Harris
- Sanford School of Medicine, University of South Dakota and OmegaQuant Analytics, LLC, Sioux Falls, SD, USA(1)
| | - K Maleta
- Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi
| | - K G Dewey
- Department of Nutrition and Program in International and Community Nutrition, University of California, Davis, CA, USA.
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Janssen CI, Zerbi V, Mutsaers MP, de Jong BS, Wiesmann M, Arnoldussen IA, Geenen B, Heerschap A, Muskiet FA, Jouni ZE, van Tol EA, Gross G, Homberg JR, Berg BM, Kiliaan AJ. Impact of dietary n-3 polyunsaturated fatty acids on cognition, motor skills and hippocampal neurogenesis in developing C57BL/6J mice. J Nutr Biochem 2015; 26:24-35. [DOI: 10.1016/j.jnutbio.2014.08.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 07/01/2014] [Accepted: 08/05/2014] [Indexed: 01/08/2023]
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Metabolic conversion of intra-amniotically-injected deuterium-labeled essential fatty acids by fetal rats following maternal n-3 fatty acid deficiency. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1841:1336-44. [PMID: 24960100 DOI: 10.1016/j.bbalip.2014.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 05/25/2014] [Accepted: 06/16/2014] [Indexed: 11/22/2022]
Abstract
Accumulation of polyunsaturated fatty acids (PUFA) in the fetal brain is accomplished predominantly via a highly selective flow of docosahexaenoic acid (22:6n-3, DHA) and arachidonic acid (20:4n-6, AA) through the placenta. Little is known regarding the endogenous capability of the fetus to generate its own DHA and AA from lower homologues such as linolenic (18:3n-3, ALA) and linoleic (18:2n-6, LA) acids, respectively. Deuterium-labeled d5-ALA and d5-LA at millimolar concentrations were injected directly into the amniotic fluid in order to investigate maternal-independent metabolic conversion of the stable isotopes in brain and liver of the fetus near delivery. After 48h under adequate maternal diet, the levels of d5-ALA metabolites in the fetal brain and fetal liver were 45±2.2 pmol/mg and 86±4 pmol/mg of which 79% and 63.6% were comprised of d5-DHA. At this time point, incorporation of d5-LA metabolites was 103±5 pmol/mg and 772±46 pmol/mg for brain and liver, of which 50% and 30% were comprised of d5-AA. Following sustained maternal dietary ALA deficiency, the levels of total d5-ALA derived metabolites in the fetal brain and fetal liver were increased to 231 pmol/mg and 696 pmol/mg of which 71% and 26% were comprised of d5-DHA. From the time course and relative rates of d5-ALA precursor displacement by d5-DHA in cellular phosphoglycerides, it is concluded that the fetal rat brain can generate its own DHA from its d5-ALA precursors particularly under dietary stress.
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Mason JK, Kharotia S, Wiggins AKA, Kitson AP, Chen J, Bazinet RP, Thompson LU. 17β-Estradiol Increases Liver and Serum Docosahexaenoic Acid in Mice Fed Varying Levels of α-Linolenic Acid. Lipids 2014; 49:745-56. [DOI: 10.1007/s11745-014-3913-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 05/11/2014] [Indexed: 01/25/2023]
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Docosahexaenoic acid and human brain development: evidence that a dietary supply is needed for optimal development. J Hum Evol 2014; 77:99-106. [PMID: 24780861 DOI: 10.1016/j.jhevol.2014.02.017] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 08/09/2013] [Accepted: 02/21/2014] [Indexed: 12/24/2022]
Abstract
Humans evolved a uniquely large brain among terrestrial mammals. Brain and nervous tissue is rich in the omega-3 polyunsaturated fatty acid (PUFA) docosahexaenoic acid (DHA). Docosahexaenoic acid is required for lower and high order functions in humans because of understood and emerging molecular mechanisms. Among brain components that depend on dietary components, DHA is limiting because its synthesis from terrestrial plant food precursors is low but its utilization when consumed in diet is very efficient. Negligible DHA is found in terrestrial plants, but in contrast, DHA is plentiful at the shoreline where it is made by single-celled organisms and plants, and in the seas supports development of very large marine mammal brains. Modern human brains accumulate DHA up to age 18, most aggressively from about half-way through gestation to about two years of age. Studies in modern humans and non-human primates show that modern infants consuming infant formulas that include only DHA precursors have lower DHA levels than for those with a source of preformed DHA. Functional measures show that infants consuming preformed DHA have improved visual and cognitive function. Dietary preformed DHA in the breast milk of modern mothers supports many-fold greater breast milk DHA than is found in the breast milk of vegans, a phenomenon linked to consumption of shore-based foods. Most current evidence suggests that the DHA-rich human brain required an ample and sustained source of dietary DHA to reach its full potential.
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