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Fan C, Xu J, Tong H, Fang Y, Chen Y, Lin Y, Chen R, Chen F, Wu G. Gut-brain communication mediates the impact of dietary lipids on cognitive capacity. Food Funct 2024; 15:1803-1824. [PMID: 38314832 DOI: 10.1039/d3fo05288e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Cognitive impairment, as a prevalent symptom of nervous system disorders, poses one of the most challenging aspects in the management of brain diseases. Lipids present in the cell membranes of all neurons within the brain and dietary lipids can regulate the cognition and memory function. In recent years, the advancements in gut microbiome research have enabled the exploration of dietary lipids targeting the gut-brain axis as a strategy for regulating cognition. This present review provides an in-depth overview of how lipids modulate cognition via the gut-brain axis depending on metabolic, immune, neural and endocrine pathways. It also comprehensively analyzes the effects of diverse lipids on the gut microbiota and intestinal barrier function, thereby affecting the central nervous system and cognitive capacity. Moreover, comparative analysis of the positive and negative effects is presented between beneficial and detrimental lipids. The former encompass monounsaturated fatty acids, short-chain fatty acids, omega-3 polyunsaturated fatty acids, phospholipids, phytosterols, fungal sterols and bioactive lipid-soluble vitamins, as well as lipid-derived gut metabolites, whereas the latter (detrimental lipids) include medium- or long-chain fatty acids, excessive proportions of n-6 polyunsaturated fatty acids, industrial trans fatty acids, and zoosterols. To sum up, the focus of this review is on how gut-brain communication mediates the impact of dietary lipids on cognitive capacity, providing a novel theoretical foundation for promoting brain cognitive health and scientific lipid consumption patterns.
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Affiliation(s)
- Chenhan Fan
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Jingxuan Xu
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Haoxiang Tong
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Yucheng Fang
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Yiming Chen
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Yangzhuo Lin
- School of Basic Medical Science, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Rui Chen
- School of Basic Medical Science, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Fuhao Chen
- School of Basic Medical Science, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Guoqing Wu
- School of Public Health, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
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2
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Denenberg S, Machin KL, Landsberg GM. Behavior and Cognition of the Senior Cat and Its Interaction with Physical Disease. Vet Clin North Am Small Anim Pract 2024; 54:153-168. [PMID: 37865588 DOI: 10.1016/j.cvsm.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
In cats, age-related pathologic condition and neurologic degeneration can produce changes in activity, vocalization, appearance, appetite, litter box use, sleep-wake cycle, personality, and cognitive ability. These changes can influence the relationship between owner and pet. Although cognitive dysfunction syndrome (CDS) can cause altered behavior later in life, other medical or behavioral causes may mimic these clinical signs or complicate diagnosis. Management and treatment of CDS can be accomplished through pharmacologic intervention, diet and nutritional supplementation, and environmental enrichment aimed at slowing the progression of the disease.
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Affiliation(s)
- Sagi Denenberg
- North Toronto Veterinary Behaviour Specialty Clinic, 8705 Yonge Street, Richmond Hill, Ontario L4C 6Z1, Canada.
| | - Karen L Machin
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4, Canada
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3
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Yamamoto Y. [Elucidation of the pathology of mental disorders focusing on polyunsaturated fatty acids and FABPs]. Nihon Yakurigaku Zasshi 2024; 159:118-122. [PMID: 38432920 DOI: 10.1254/fpj.23093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Polyunsaturated fatty acids (PUFAs) are essential for brain development and function, and an imbalance of brain PUFAs is linked to mental disorders like autism and schizophrenia. However, the cellular and molecular mechanisms underlying the effects of PUFAs on the brain remain largely unknown. Since they are insoluble in water, specific transporters like fatty acid binding proteins (FABPs), are required for transport and function of PUFAs within cells. We focused on the relationship between FABP-mediated homeostasis of brain PUFAs and neural plasticity. We found that FABP3, with a high affinity for n-6 PUFAs, is predominantly expressed in the GABAergic inhibitory interneurons of the anterior cingulate cortex (ACC) in the adult mouse brain. FABP3 knockout (KO) mice show increased GABA synthesis and inhibitory synaptic transmission in the ACC. We also found that FABP7 controls lipid raft function in astrocytes, and astrocytes lacking FABP7 exhibit changes in response to external stimuli. Furthermore, in FABP7 KO mice, dendritic protrusion formation in pyramidal neurons becomes abnormal, and we have reported a decrease in spine density and excitatory synaptic transmission. Here, we introduced recent advances in the understanding of the functions of PUFAs and FABPs in the brain, focusing especially on FABP3 and FABP7, in relation to human mental disorders.
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Affiliation(s)
- Yui Yamamoto
- Division of Anatomy and Cell Biology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University
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4
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Dong Y, Wei Y, Wang L, Song K, Zhang C, Lu K, Rahimnejad S. Dietary n-3/n-6 polyunsaturated fatty acid ratio modulates growth performance in spotted seabass ( Lateolabrax maculatus) through regulating lipid metabolism, hepatic antioxidant capacity and intestinal health. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 14:20-31. [PMID: 37234947 PMCID: PMC10208799 DOI: 10.1016/j.aninu.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 01/12/2023] [Accepted: 04/04/2023] [Indexed: 05/28/2023]
Abstract
An 8-week feeding experiment was carried out to explore the effects of dietary n-3/n-6 polyunsaturated fatty acid (PUFA) ratio on growth performance, lipid metabolism, hepatic antioxidant status, and gut flora of spotted seabass (Lateolabrax maculatus). Six experimental diets were formulated to contain different levels of two purified oil sources including docosahexaenoic and eicosapentaenoic acids enriched oil (n-3) and linoleic acid-enriched oil (n-6) leading to n-3/n-6 PUFA ratios of 0.04, 0.35, 0.66, 1.35, 2.45 and 16.17. Each diet was fed to triplicate groups of juvenile L. maculatus (11.06 ± 0.20 g, 30 fish/tank). Final body weight (FBW), weight gain (WG), specific growth rates (SGR), protein efficiency ratio (PER) and feed utilization efficiency increased as n-3/n-6 PUFA ratio increased up to a certain level, and then decreased thereafter. Fish fed the diet with n-3/n-6 PUFA ratio of 0.66 exhibited the highest FBW, WG, SGR and PER and the lowest feed conversion ratio. Lower n-3/n-6 PUFA ratios induced up-regulated expression of lipid synthesis-related genes (fas, acc2 and srebp-1c) and down-regulated expression of lipolysis related genes (atgl, pparα, cpt-1 and aox). Higher expression of lipolysis-related genes (atgl, pparα and cpt-1) was recorded at moderate n-3/n-6 PUFA ratios (0.66 to 1.35). Moreover, inappropriate n-3/n-6 PUFA ratios triggered up-regulation of pro-inflammatory genes (il-6 and tnf-α) and down-regulation of anti-inflammatory genes (il-4 and il-10) in the intestine. The diet with n-3/n-6 PUFA ratio of 0.66 inhibited intestine inflammation, improved intestinal flora richness, increased the abundance of beneficial bacteria such as Lactobacillus, Alloprevotella and Ruminococcus, and reduced the abundance of harmful bacteria including Escherichia-Shigella and Enterococcus. In summary, it could be suggested that a dietary n-3/n-6 PUFA ratio of 0.66 can improve growth performance and feed utilization in L. maculatus, as is deemed to be mediated through regulation of lipid metabolism and intestinal flora.
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Affiliation(s)
- Yanzou Dong
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Yu Wei
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Ling Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Kai Song
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Chunxiao Zhang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Kangle Lu
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Samad Rahimnejad
- Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Zátiší 728, Vodňany 389 25, Czech Republic
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, Murcia 30100, Spain
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5
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Kolesnikov NA, Kharkov VN, Vagaitseva KV, Zarubin AA, Stepanov VA. Blocks identical by descent in the genomes of the indigenous population of Siberia demonstrate genetic links between populations. Vavilovskii Zhurnal Genet Selektsii 2023; 27:55-62. [PMID: 36923483 PMCID: PMC10009479 DOI: 10.18699/vjgb-23-08] [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: 10/21/2022] [Revised: 01/17/2023] [Accepted: 01/24/2023] [Indexed: 03/18/2023] Open
Abstract
The gene pool of the indigenous population of Siberia is a unique system for studying population and evolutionary genetic processes, analyzing genetic diversity, and reconstructing the genetic history of populations. High ethnic diversity is a feature of Siberia, as one of the regions of the peripheral settlement of modern human. The vast expanses of this region and the small number of aboriginal populations contributed to the formation of significant territorial and genetic subdivision. About 40 indigenous peoples are settled on the territory of the Siberian historical and ethnographic province. Within the framework of this work, a large-scale population study of the gene pool of the indigenous peoples of Siberia was carried out for the first time at the level of high-density biochips. This makes it possible to fill in a significant gap in the genogeographic picture of the Eurasian population. For this, DNA fragments were analyzed, which had been inherited without recombination by each pair of individuals from their recent common ancestor, that is, segments (blocks) identical by descent (IBD). The distribution of IBD blocks in the populations of Siberia is in good agreement with the geographical proximity of the populations and their linguistic affiliation. Among the Siberian populations, the Chukchi, Koryaks, and Nivkhs form a separate cluster from the main Siberian group, with the Chukchi and Koryaks being more closely related. Separate subclusters of Evenks and Yakuts, Kets and Chulyms are formed within the Siberian cluster. Analysis of SNPs that fell into more IBD segments of the analyzed populations made it possible to compile a list of 5358 genes. According to the calculation results, biological processes enriched with these genes are associated with the detection of a chemical stimulus involved in the sensory perception of smell. Enriched for the genes found, molecular pathways are associated with the metabolism of linoleic, arachidonic, tyrosic acids and by olfactory transduction. At the same time, an analysis of the literature data showed that some of the selected genes, which were found in a larger number of IBD blocks in several populations at once, can play a role in genetic adaptation to environmental factors.
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Affiliation(s)
- N A Kolesnikov
- Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - V N Kharkov
- Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - K V Vagaitseva
- Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - A A Zarubin
- Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - V A Stepanov
- Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
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Jacquemyn J, Kuenen S, Swerts J, Pavie B, Vijayan V, Kilic A, Chabot D, Wang YC, Schoovaerts N, Corthout N, Verstreken P. Parkinsonism mutations in DNAJC6 cause lipid defects and neurodegeneration that are rescued by Synj1. NPJ Parkinsons Dis 2023; 9:19. [PMID: 36739293 PMCID: PMC9899244 DOI: 10.1038/s41531-023-00459-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 01/16/2023] [Indexed: 02/06/2023] Open
Abstract
Recent evidence links dysfunctional lipid metabolism to the pathogenesis of Parkinson's disease, but the mechanisms are not resolved. Here, we generated a new Drosophila knock-in model of DNAJC6/Auxilin and find that the pathogenic mutation causes synaptic dysfunction, neurological defects and neurodegeneration, as well as specific lipid metabolism alterations. In these mutants, membrane lipids containing long-chain polyunsaturated fatty acids, including phosphatidylinositol lipid species that are key for synaptic vesicle recycling and organelle function, are reduced. Overexpression of another protein mutated in Parkinson's disease, Synaptojanin-1, known to bind and metabolize specific phosphoinositides, rescues the DNAJC6/Auxilin lipid alterations, the neuronal function defects and neurodegeneration. Our work reveals a functional relation between two proteins mutated in Parkinsonism and implicates deregulated phosphoinositide metabolism in the maintenance of neuronal integrity and neuronal survival.
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Affiliation(s)
- Julie Jacquemyn
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium ,grid.17089.370000 0001 2190 316XPresent Address: Neuroscience and Mental Health Institute, University of Alberta, Department of Physiology, Department of Cell Biology, Group on Molecular and Cell Biology of Lipids, Edmonton, Alberta Canada
| | - Sabine Kuenen
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
| | - Jef Swerts
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
| | - Benjamin Pavie
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium ,VIB-Bioimaging Core, 3000 Leuven, Belgium
| | - Vinoy Vijayan
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
| | - Ayse Kilic
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
| | - Dries Chabot
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
| | - Yu-Chun Wang
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium ,grid.11486.3a0000000104788040Present Address: VIB Technology Watch, Technology Innovation Laboratory, VIB, Gent, Belgium
| | - Nils Schoovaerts
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
| | - Nikky Corthout
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium ,VIB-Bioimaging Core, 3000 Leuven, Belgium
| | - Patrik Verstreken
- grid.511015.1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium ,grid.5596.f0000 0001 0668 7884KU Leuven, Department of Neurosciences, Leuven Brain Institute, Mission Lucidity, 3000 Leuven, Belgium
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7
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Baccouch R, Shi Y, Vernay E, Mathelié-Guinlet M, Taib-Maamar N, Villette S, Feuillie C, Rascol E, Nuss P, Lecomte S, Molinari M, Staneva G, Alves ID. The impact of lipid polyunsaturation on the physical and mechanical properties of lipid membranes. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2023; 1865:184084. [PMID: 36368636 DOI: 10.1016/j.bbamem.2022.184084] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022]
Abstract
The lipid composition of cellular membranes and the balance between the different lipid components can be impacted by aging, certain pathologies, specific diets and other factors. This is the case in a subgroup of individuals with psychiatric disorders, such as schizophrenia, where cell membranes of patients have been shown to be deprived in polyunsaturated fatty acids (PUFAs), not only in brain areas where the target receptors are expressed but also in peripheral tissues. This PUFA deprivation thus represents a biomarker of such disorders that might impact not only the interaction of antipsychotic medications with these membranes but also the activation and signaling of the targeted receptors embedded in the lipid membrane. Therefore, it is crucial to understand how PUFAs levels alterations modulate the different physical properties of membranes. In this paper, several biophysical approaches were combined (Laurdan fluorescence spectroscopy, atomic force microscopy, differential scanning calorimetry, molecular modeling) to characterize membrane properties such as fluidity, elasticity and thickness in PUFA-enriched cell membranes and lipid model systems reflecting the PUFA imbalance observed in some diseases. The impact of both the number of unsaturations and their position along the chain on the above properties was investigated. Briefly, data revealed that PUFA presence in membranes increases membrane fluidity, elasticity and flexibility and decreases its thickness and order parameter. Both the level of unsaturation and their position affect these membrane properties.
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Affiliation(s)
- Rim Baccouch
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Yarong Shi
- Laboratoire de Recherche en Nanosciences, LRN EA4682, University of Reims Champagne Ardenne, France
| | - Emilie Vernay
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Marion Mathelié-Guinlet
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Nada Taib-Maamar
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Sandrine Villette
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Cécile Feuillie
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Estelle Rascol
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Philippe Nuss
- Centre de Recherche Saint-Antoine, INSERM UMRS 938, Sorbonne Université, Paris, France; Service de psychiatrie et de psychologie médicale, Sorbonne Université, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - Sophie Lecomte
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Michael Molinari
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France
| | - Galya Staneva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl.21, 1113 Sofia, Bulgaria
| | - Isabel D Alves
- Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Bat B14, allée Geoffroy St. Hilaire, F-33600 Pessac, France.
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Soto-Sánchez O, Hidalgo P, González A, Oliveira PE, Hernández Arias AJ, Dantagnan P. Microalgae as Raw Materials for Aquafeeds: Growth Kinetics and Improvement Strategies of Polyunsaturated Fatty Acids Production. AQUACULTURE NUTRITION 2023; 2023:5110281. [PMID: 36860971 PMCID: PMC9973195 DOI: 10.1155/2023/5110281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 11/25/2022] [Accepted: 12/13/2022] [Indexed: 06/18/2023]
Abstract
Studies have shown that ancient cultures used microalgae as food for centuries. Currently, scientific reports highlight the value of nutritional composition of microalgae and their ability to accumulate polyunsaturated fatty acids at certain operational conditions. These characteristics are gaining increasing interest for the aquaculture industry which is searching for cost-effective replacements for fish meal and oil because these commodities are one of the most significant operational expenses and their dependency has become a bottleneck for their sustainable development of the aquaculture industry. This review is aimed at highlighting the use of microalgae as polyunsaturated fatty acid source in aquaculture feed formulations, despite their scarce production at industrial scale. Moreover, this document includes several approaches to improve microalgae production and to increase the content of polyunsaturated fatty acids with emphasis in the accumulation of DHA, EPA, and ARA. Furthermore, the document compiles several studies which prove microalgae-based aquafeeds for marine and freshwater species. Finally, the study explores the aspects that intervene in production kinetics and improvement strategies with possibilities for upscaling and facing main challenges of using microalgae in the commercial production of aquafeeds.
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Affiliation(s)
- Oscar Soto-Sánchez
- Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
| | - Pamela Hidalgo
- Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
- Núcleo de Investigación en Bioproductos y Materiales Avanzados, Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
| | - Aixa González
- Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
- Núcleo de Investigación en Bioproductos y Materiales Avanzados, Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
| | - Patricia E. Oliveira
- Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
- Núcleo de Investigación en Bioproductos y Materiales Avanzados, Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
| | - Adrián J. Hernández Arias
- Núcleo de Investigación en Producción Alimentaria, Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
| | - Patricio Dantagnan
- Núcleo de Investigación en Producción Alimentaria, Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
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9
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Remodeling of the Plasma Membrane by Surface-Bound Protein Monomers and Oligomers: The Critical Role of Intrinsically Disordered Regions. J Membr Biol 2022; 255:651-663. [PMID: 35930019 PMCID: PMC9718270 DOI: 10.1007/s00232-022-00256-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022]
Abstract
The plasma membrane (PM) of cells is a dynamic structure whose morphology and composition is in constant flux. PM morphologic changes are particularly relevant for the assembly and disassembly of signaling platforms involving surface-bound signaling proteins, as well as for many other mechanochemical processes that occur at the PM surface. Surface-bound membrane proteins (SBMP) require efficient association with the PM for their function, which is often achieved by the coordinated interactions of intrinsically disordered regions (IDRs) and globular domains with membrane lipids. This review focuses on the role of IDR-containing SBMPs in remodeling the composition and curvature of the PM. The ability of IDR-bearing SBMPs to remodel the Gaussian and mean curvature energies of the PM is intimately linked to their ability to sort subsets of phospholipids into nanoclusters. We therefore discuss how IDRs of many SBMPs encode lipid-binding specificity or facilitate cluster formation, both of which increase their membrane remodeling capacity, and how SBMP oligomers alter membrane shape by monolayer surface area expansion and molecular crowding.
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10
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Lamarre J, Cheema SK, Robertson GJ, Wilson DR. Foraging on anthropogenic food predicts problem-solving skills in a seabird. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157732. [PMID: 35931163 DOI: 10.1016/j.scitotenv.2022.157732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 07/05/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
Species and populations with greater cognitive performance are more successful at adapting to changing habitats. Accordingly, urban species and populations often outperform their rural counterparts on problem-solving tests. Paradoxically, urban foraging also might be detrimental to the development and integrity of animals' brains because anthropogenic foods often lack essential nutrients such as the long-chain omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are important for cognitive performance in mammals and possibly birds. We tested whether urbanization or consumption of EPA and DHA are associated with problem-solving abilities in ring-billed gulls, a seabird that historically exploited marine environments rich in omega-3 fatty acids but now also thrives in urban centres. Using incubating adults nesting across a range of rural to urban colonies with equal access to the ocean, we tested whether urban gulls preferentially consumed anthropogenic food while rural nesters relied on marine organisms. As we expected individual variation in foraging habits within nesting location, we characterized each captured gulls' diet using stable isotope and fatty acid analyses of their red blood cells. To test their problem-solving abilities, we presented the sampled birds with a horizontal rendition of the string-pull test, a foraging puzzle often used in animal cognitive studies. The isotopic and fatty acid profiles of urban nesters indicated a diet comprising primarily anthropogenic food, whereas the profiles of rural nesters indicated a high reliance on marine organisms. Despite the gulls' degree of access to urban foraging habitat not predicting solving success, birds with biochemical profiles reflecting anthropogenic food (less DHA and a higher carbon-13 ratio in their red blood cells) had a greater probability of solving the string-pull test. These results suggest that experience foraging on anthropogenic food is the main explanatory factor leading to successful problem-solving, while regular consumption of omega-3s during incubation appears inconsequential.
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Affiliation(s)
- Jessika Lamarre
- Cognitive and Behavioural Ecology Program, Memorial University of Newfoundland and Labrador, St. John's, Canada.
| | - Sukhinder Kaur Cheema
- Department of Biochemistry, Memorial University of Newfoundland and Labrador, St. John's, Canada
| | - Gregory J Robertson
- Wildlife Research Division, Environment and Climate Change Canada, Mount Pearl, Canada
| | - David R Wilson
- Department of Psychology, Memorial University of Newfoundland and Labrador, St. John's, Canada
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Gui Y, Wang X, Chen X, Wang Q, Yin Y, Song C. Balancing the health effect between risks of methylmercury and benefits of nutrients in consumption of Chinese mitten crab (Eriocheir sinensis) in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:38527-38534. [PMID: 35079974 DOI: 10.1007/s11356-022-18822-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Aquatic products contain both beneficial substances such as polyunsaturated fatty acids and harmful compounds such as methylmercury, and their combined health effects should be assessed at a common end point for a rational analysis. We used a risk-benefit model to assess net IQ point gain from consumption of Chinese mitten crabs (Eriocheir sinensis) from Jiangsu Province. Levels of methylmercury in the edible parts of the crabs ranged from 0.79 to 69.47 μg/kg (mean: 26.88 ± 15.09 μg/kg). Levels of methylmercury did not differ by sampling location. In aquaculture experiments, we simulated artificial pond farming using either iced trash fish or formulated feed. Crabs fed iced trash fish contained 28.72 ± 2.30 mg/g of eicosapentaenoic acid and docosahexaenoic acid and crabs fed formulated feed contained 19.64 ± 3.62 mg/g of eicosapentaenoic acid and docosahexaenoic acid. Model calculations estimated a gain of 7.52 IQ points from consumption of crabs fed formulated feed and 11.00 IQ points from consumption of crabs fed iced trash fish. They are all above the maximum theoretical IQ point gain value. Chinese mitten crab is a kind of high-quality food which is beneficial to the neural development of infants. Our findings may assist in improving crab farming methods and consumption patterns, accelerating the sustainable development of the Chinese mitten crab industry.
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Affiliation(s)
- Yuan Gui
- Wuxi Fishery College of Nanjing Agricultural University, Wuxi, People's Republic of China
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, People's Republic of China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products On Environmental Factors (Wuxi), Ministry of Agriculture and Rural Affairs, Wuxi, People's Republic of China
| | - Xinchi Wang
- Wuxi Fishery College of Nanjing Agricultural University, Wuxi, People's Republic of China
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, People's Republic of China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products On Environmental Factors (Wuxi), Ministry of Agriculture and Rural Affairs, Wuxi, People's Republic of China
| | - Xi Chen
- Wuxi Fishery College of Nanjing Agricultural University, Wuxi, People's Republic of China
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, People's Republic of China
| | - Qian Wang
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, People's Republic of China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products On Environmental Factors (Wuxi), Ministry of Agriculture and Rural Affairs, Wuxi, People's Republic of China
| | - Yuting Yin
- Wuxi Fishery College of Nanjing Agricultural University, Wuxi, People's Republic of China
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, People's Republic of China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products On Environmental Factors (Wuxi), Ministry of Agriculture and Rural Affairs, Wuxi, People's Republic of China
| | - Chao Song
- Wuxi Fishery College of Nanjing Agricultural University, Wuxi, People's Republic of China.
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, People's Republic of China.
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products On Environmental Factors (Wuxi), Ministry of Agriculture and Rural Affairs, Wuxi, People's Republic of China.
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China.
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12
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Hatton SL, Pandey MK. Fat and Protein Combat Triggers Immunological Weapons of Innate and Adaptive Immune Systems to Launch Neuroinflammation in Parkinson's Disease. Int J Mol Sci 2022; 23:1089. [PMID: 35163013 PMCID: PMC8835271 DOI: 10.3390/ijms23031089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 01/27/2023] Open
Abstract
Parkinson's disease (PD) is the second-most common neurodegenerative disease in the world, affecting up to 10 million people. This disease mainly happens due to the loss of dopaminergic neurons accountable for memory and motor function. Partial glucocerebrosidase enzyme deficiency and the resultant excess accumulation of glycosphingolipids and alpha-synuclein (α-syn) aggregation have been linked to predominant risk factors that lead to neurodegeneration and memory and motor defects in PD, with known and unknown causes. An increasing body of evidence uncovers the role of several other lipids and their association with α-syn aggregation, which activates the innate and adaptive immune system and sparks brain inflammation in PD. Here, we review the emerging role of a number of lipids, i.e., triglyceride (TG), diglycerides (DG), glycerophosphoethanolamines (GPE), polyunsaturated fatty acids (PUFA), sphingolipids, gangliosides, glycerophospholipids (GPL), and cholesterols, and their connection with α-syn aggregation as well as the induction of innate and adaptive immune reactions that trigger neuroinflammation in PD.
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Affiliation(s)
- Shelby Loraine Hatton
- Cincinnati Children’s Hospital Medical Center, Division of Human Genetics, 3333 Burnet Avenue, Cincinnati, OH 45229, USA;
| | - Manoj Kumar Pandey
- Cincinnati Children’s Hospital Medical Center, Division of Human Genetics, 3333 Burnet Avenue, Cincinnati, OH 45229, USA;
- Department of Pediatrics, Division of Human Genetics, College of Medicine, University of Cincinnati, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
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13
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Omega-3 Polyunsaturated Fatty Acid Attenuates Uremia-Induced Brain Damage in Mice. Int J Mol Sci 2021; 22:ijms222111802. [PMID: 34769231 PMCID: PMC8583921 DOI: 10.3390/ijms222111802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 12/18/2022] Open
Abstract
Although the cause of neurological disease in patients with chronic kidney disease (CKD) has not been completely identified yet, recent papers have identified accumulated uremic toxin as its main cause. Additionally, omega-3 polyunsaturated fatty acid (ω-3 PUFA) plays an important role in maintaining normal nerve function, but its protective effects against uremic toxin is unclear. The objective of this study was to identify brain damage caused by uremic toxicity and determine the protective effects of ω-3 PUFA against uremic toxin. We divided mice into the following groups: wild-type (wt) sham (n = 8), ω-3 PUFA sham (n = 8), Fat-1 sham (n = 8), ischemia-reperfusion (IR) (n = 20), and ω-3 PUFA+IR (n = 20) Fat-1+IR (n = 20). Brain tissue, kidney tissue, and blood were collected three days after the operation of mice (sham and IR operation). This study showed that Ki67 and neuronal nuclei (NeuN) decreased in the brain of uremic mice as compared to wt mice brain, but increased in the ω-3 PUFA-treated uremic mice and the brain of uremic Fat-1 mice as compared to the brain of uremic mice. The pro-apoptotic protein expressions were increased, whereas anti-apoptotic protein expression decreased in the brain of uremic mice as compared to wt mice brain. However, apoptotic protein expression decreased in the ω-3 PUFA-treated uremic mice and the brain of uremic Fat-1 mice as compared to the brain of uremic mice. Furthermore, the brain of ω-3 PUFA-treated uremic mice and uremic Fat-1 mice showed increased expression of p-PI3K, p-PDK1, and p-Akt as compared to the brain of uremic mice. We confirm that uremic toxin damages the brain and causes cell death. In these injuries, ω-3 PUFA plays an important role in neuroprotection through PI(3)K-Akt signaling.
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14
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Zhang L, Yu Y, Dong L, Gan J, Mao T, Liu T, Li X, He L. Effects of moderate exercise on hepatic amino acid and fatty acid composition, liver transcriptome, and intestinal microbiota in channel catfish (Ictalurus punctatus). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2021; 40:100921. [PMID: 34607243 DOI: 10.1016/j.cbd.2021.100921] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022]
Abstract
Previous research on swimming exercise in fish has focused on muscle building and quality of flesh. However, the effects of hepatic amino acid and fatty acid composition, liver gene expression profile, and intestinal microbiota are poorly understood. In this study, channel catfish (Ictalurus punctatus) were subjected to a 4-week swimming exercise, and liver transcriptome and intestinal microbiota analyses were performed to broaden our understanding of fish under exercise. When compared to non-exercised channel catfish (N-EXF), exercised channel catfish (EXF) had improved arachidonic acid (C20:4n6; ARA), docosahexaenoic acid (C22:6n3; DHA), aspartic acid (Asp) and glycine (Gly). The liver transcriptome analysis revealed 2912 differentially expressed genes and numerous enriched signaling pathways including those involved in nutrient synthesis, such as biosynthesis of unsaturated fatty acids and amino acids; glucose metabolism, such as glycolysis/gluconeogenesis, insulin signaling, and AMPK signaling pathways; and oxygen transport, such as HIF-1, PI3K-Akt, and MAPK signaling pathways. In addition, bacterial 16S rRNA gene sequencing data revealed that long-term exercise increased bacterial diversity and richness, and changed the intestinal microbial composition in channel catfish. In summary, this study provides insights into hepatic metabolic pathways, candidate genes, and intestinal microbiota underlying the long-term exercised channel catfish.
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Affiliation(s)
- Lang Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
| | - Yali Yu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
| | - Lixue Dong
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
| | - Jinhua Gan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
| | - Tao Mao
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
| | - Ting Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
| | - Xiaohui Li
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
| | - Li He
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, PR China.
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15
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Binotti B, Jahn R, Pérez-Lara Á. An overview of the synaptic vesicle lipid composition. Arch Biochem Biophys 2021; 709:108966. [PMID: 34139199 DOI: 10.1016/j.abb.2021.108966] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 11/29/2022]
Abstract
Chemical neurotransmission is the major mechanism of neuronal communication. Neurotransmitters are released from secretory organelles, the synaptic vesicles (SVs) via exocytosis into the synaptic cleft. Fusion of SVs with the presynaptic plasma membrane is balanced by endocytosis, thus maintaining the presynaptic membrane at steady-state levels. The protein machineries responsible for exo- and endocytosis have been extensively investigated. In contrast, less is known about the role of lipids in synaptic transmission and how the lipid composition of SVs is affected by dynamic exo-endocytotic cycling. Here we summarize the current knowledge about the composition, organization, and function of SV membrane lipids. We also cover lipid biogenesis and maintenance during the synaptic vesicle cycle.
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Affiliation(s)
- Beyenech Binotti
- Department of Biochemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Reinhard Jahn
- Department of Neurobiology, Max-Planck-Institute for Biophysical Chemistry, Am Faßberg 11, 37077, Göttingen, Germany.
| | - Ángel Pérez-Lara
- Department of Physical Chemistry, University of Granada, Campus Universitario de Cartuja, 18071, Granada, Spain.
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16
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Retinoid X Receptor α Regulates DHA-Dependent Spinogenesis and Functional Synapse Formation In Vivo. Cell Rep 2021; 31:107649. [PMID: 32433958 DOI: 10.1016/j.celrep.2020.107649] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 02/01/2020] [Accepted: 04/22/2020] [Indexed: 12/23/2022] Open
Abstract
Coordinated intracellular and extracellular signaling is critical to synapse development and functional neural circuit wiring. Here, we report that unesterified docosahexaenoic acid (DHA) regulates functional synapse formation in vivo via retinoid X receptor α (Rxra) signaling. Using Rxra conditional knockout (cKO) mice and virus-mediated transient gene expression, we show that endogenous Rxra plays important roles in regulating spinogenesis and excitatory synaptic transmission in cortical pyramidal neurons. We further show that the effects of RXRA are mediated through its DNA-binding domain in a cell-autonomous and reversible manner. Moreover, unesterified DHA increases spine formation and excitatory synaptic transmission in vivo in an Rxra-dependent fashion. Rxra cKO mice generally behave normally but show deficits in behavior tasks associated with social memory. Together, these results demonstrate that unesterified DHA signals through RXRA to regulate spinogenesis and functional synapse formation, providing insight into the mechanism through which DHA promotes brain development and cognitive function.
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17
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Abstract
The FADS locus contains the genes FADS1 and FADS2 that encode enzymes involved in the synthesis of long-chain polyunsaturated fatty acids. This locus appears to have been a repeated target of selection in human evolution, likely because dietary input of long-chain polyunsaturated fatty acids varied over time depending on environment and subsistence strategy. Several recent studies have identified selection at the FADS locus in Native American populations, interpreted as evidence for adaptation during or subsequent to the passage through Beringia. Here, we show that these signals are confounded by independent selection—postdating the split from Native Americans—in the European and, possibly, the East Asian populations used in the population branch statistic test. This is supported by direct evidence from ancient DNA that one of the putatively selected haplotypes was already common in Northern Eurasia at the time of the separation of Native American ancestors. An explanation for the present-day distribution of the haplotype that is more consistent with the data is that Native Americans retain the ancestral state of Paleolithic Eurasians. Another haplotype at the locus may reflect a secondary selection signal, although its functional impact is unknown.
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Affiliation(s)
- Iain Mathieson
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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18
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Carbone BE, Abouleish M, Watters KE, Vogel S, Ribic A, Schroeder OHU, Bader BM, Biederer T. Synaptic Connectivity and Cortical Maturation Are Promoted by the ω-3 Fatty Acid Docosahexaenoic Acid. Cereb Cortex 2021; 30:226-240. [PMID: 31034037 DOI: 10.1093/cercor/bhz083] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/20/2019] [Accepted: 03/27/2019] [Indexed: 12/14/2022] Open
Abstract
Brain development is likely impacted by micronutrients. This is supported by the effects of the ω-3 fatty acid docosahexaenoic acid (DHA) during early neuronal differentiation, when it increases neurite growth. Aiming to delineate DHA roles in postnatal stages, we selected the visual cortex due to its stereotypic maturation. Immunohistochemistry showed that young mice that received dietary DHA from birth exhibited more abundant presynaptic and postsynaptic specializations. DHA also increased density and size of synapses in a dose-dependent manner in cultured neurons. In addition, dendritic arbors of neurons treated with DHA were more complex. In agreement with improved connectivity, DHA enhanced physiological parameters of network maturation in vitro, including bursting strength and oscillatory behavior. Aiming to analyze functional maturation of the cortex, we performed in vivo electrophysiological recordings from awake mice to measure responses to patterned visual inputs. Dietary DHA robustly promoted the developmental increase in visual acuity, without altering light sensitivity. The visual acuity of DHA-supplemented animals continued to improve even after their cortex had matured and DHA abolished the acuity plateau. Our findings show that the ω-3 fatty acid DHA promotes synaptic connectivity and cortical processing. These results provide evidence that micronutrients can support the maturation of neuronal networks.
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Affiliation(s)
- Beatrice E Carbone
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA
| | - Malik Abouleish
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA
| | - Katherine E Watters
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA
| | - Seth Vogel
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA
| | - Adema Ribic
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA
| | | | | | - Thomas Biederer
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, USA
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19
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Lamarre J, Cheema SK, Robertson GJ, Wilson DR. Omega-3 fatty acids accelerate fledging in an avian marine predator: a potential role of cognition. J Exp Biol 2021; 224:jeb.235929. [PMID: 33462136 PMCID: PMC7929930 DOI: 10.1242/jeb.235929] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/12/2021] [Indexed: 12/16/2022]
Abstract
Consuming omega-3 fatty acids (n-3 LCPUFAs) during development improves cognition in mammals, but the effect remains untested in other taxa. In aquatic ecosystems, n-3 LCPUFAs are produced by phytoplankton and bioaccumulate in the food web. Alarmingly, the warming and acidification of aquatic systems caused by climate change impair n-3 LCPUFA production, with an anticipated decrease of 80% by the year 2100. We tested whether n-3 LCPUFA consumption affects the physiology, morphology, behaviour and cognition of the chicks of a top marine predator, the ring-billed gull. Using a colony with little access to n-3 LCPUFAs, we supplemented siblings from 22 fenced nests with contrasting treatments from hatching until fledging; one sibling received n-3 LCPUFA-rich fish oil and the other, a control sucrose solution without n-3 LCPUFAs. Halfway through the nestling period, half the chicks receiving fish oil were switched to the sucrose solution to test whether n-3 LCPUFA intake remains crucial past the main growth phase (chronic versus transient treatments). Upon fledging, n-3 LCPUFAs were elevated in the blood and brains of chicks receiving the chronic treatment, but were comparable to control levels among those receiving the transient treatment. Across the entire sample, chicks with elevated n-3 LCPUFAs in their tissues fledged earlier despite their morphology and activity levels being unrelated to fledging age. Fledging required chicks to escape fences encircling their nest. We therefore interpret fledging age as a possible indicator of cognition, with chicks with improved cognition fledging earlier. These results provide insight into whether declining dietary n-3 LCPUFAs will compromise top predators' problem-solving skills, and thus their ability to survive in a rapidly changing world.
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Affiliation(s)
- Jessika Lamarre
- Cognitive and Behavioural Ecology Program, Memorial University of Newfoundland, St John's, NL, Canada, A1B 3X9
| | - Sukhinder Kaur Cheema
- Department of Biochemistry, Memorial University of Newfoundland, St John's, NL, Canada, A1B 3X9
| | - Gregory J Robertson
- Wildlife Research Division, Environment and Climate Change Canada, Mount Pearl, NL, Canada, A1N 4T3
| | - David R Wilson
- Department of Psychology, Memorial University of Newfoundland, St John's, NL, Canada, A1B 3X9
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20
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Yamamoto Y, Owada Y. Possible involvement of fatty acid binding proteins in psychiatric disorders. Anat Sci Int 2021; 96:333-342. [PMID: 33604770 DOI: 10.1007/s12565-020-00598-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/26/2020] [Indexed: 12/19/2022]
Abstract
Polyunsaturated fatty acids (PUFAs) are essential for brain development and function. Increasing evidence has shown that an imbalance of PUFAs is associated with various human psychiatric disorders, including autism and schizophrenia. However, the mechanisms underlying the effects of PUFAs on brain functions at cellular and molecular levels remain unclear. Since PUFAs are insoluble in water, specific transporters are required to deliver PUFAs to appropriate intracellular compartments. Fatty acid-binding proteins (FABPs), the cellular chaperones of PUFAs, are involved in PUFA intracellular trafficking, signal transduction, and gene transcription. Therefore, we focused on the relationship between FABP-regulated PUFA homeostasis in the brain and neuronal plasticity. The authors previously reported that FABP3, which preferentially binds to n-6 PUFAs, is strongly expressed in the gamma-aminobutyric acid (GABAergic) inhibitory interneurons of the adult mouse anterior cingulate cortex (ACC), which is a component of the limbic cortex and is important for the coordination of cognitive and emotional behaviors. Interestingly, Fabp3 KO mice show increased GABA synthesis and abnormal excitatory/inhibitory balance in the ACC. In addition, studies have indicated that FABP7, which preferentially binds to n-3 PUFAs, controls lipid raft function in astrocytes, and astrocytic Fabp7 deficiency results in an altered response of astrocytes to external stimuli. Furthermore, Fabp7 KO mice exhibit aberrant dendritic morphology, and decreased spine density and excitatory synaptic transmission in pyramidal neurons. This review summarizes relationship between PUFAs or FABPs and human psychiatric disorders and discusses recent progress in elucidating the function of FABPs, especially FABP3 and 7, in the brain.
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Affiliation(s)
- Yui Yamamoto
- Department of Organ Anatomy, Tohoku University, Seiryo-machi Aoba-ku, Sendai, 980-8575, Japan. .,Department of Anatomy, Tohoku Medical and Pharmaceutical University, Fukumuro Miyagino-ku, Sendai, 980-8578, Japan.
| | - Yuji Owada
- Department of Organ Anatomy, Tohoku University, Seiryo-machi Aoba-ku, Sendai, 980-8575, Japan
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21
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Manna M, Murarka RK. Polyunsaturated Fatty Acid Modulates Membrane-Bound Monomeric α-Synuclein by Modulating Membrane Microenvironment through Preferential Interactions. ACS Chem Neurosci 2021; 12:675-688. [PMID: 33538574 DOI: 10.1021/acschemneuro.0c00694] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
There is ample evidence that both native functions and pathogenic aggregation of α-synuclein are intimately dependent on lipid interactions and fatty acid type; the regulatory mechanism however remains unclear. In the present work, using extensive atomistic molecular dynamics simulations and enhanced-sampling, we have focused on exploring the mechanism of fatty acid dependent regulation of monomeric α-Syn100 in a native synaptic vesicle-like membrane. Our results show that α-Syn100 spontaneously binds to the membrane through its N-terminal region (residues 1-34), where the depth of membrane insertion, the structure, and orientation of the membrane-bound α-Syn100 and its impact on membrane structure are modulated by docosahexaenoic acid (DHA). DHA is a polyunsaturated fatty acid abundantly found in the brain and known to promote the oligomerization of α-synuclein. We found that DHA exhibits marked propensity to interact with monomeric α-Syn100 and modulates the microenvironment of the protein by preferentially sorting DHA-containing phospholipids, depleting other phospholipids and cholesterol as well as increasing the proportion of anionic to neutral lipids in the immediate vicinity of the protein. Owing to the unique conformational flexibility, DHA chains form more lipid-packing defects in the membrane and efficiently coat the membrane-embedded surface of the protein, compared to the saturated and monounsaturated fatty acids. DHA thus makes the bilayer more amiable to protein adsorption and less prone to α-synuclein-induced perturbation associated with cytotoxicity. Indeed, in the absence of DHA, we observed significant thinning of the local bilayer membrane induced by α-Syn100. Though α-Syn100 is predominantly α-helical in membranes studied here, in the presence of DHA we observe formation of β-sheet/β-strands in the C-terminal region (residues 35-100) of α-Syn100, which is extended out from the membrane surface. Notably, DHA induces β structure in the NAC domain of α-Syn100 and promotes extended conformations as well as large solvent exposure of this hydrophobic domain, properties that are known to facilitate self-assembly of α-synuclein. To the best of our knowledge, this study for the first time provides the atomistic insights into DHA-induced regulatory mechanism of monomeric α-synuclein, having implications in protein structure and its physiological/pathological functions.
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Affiliation(s)
- Moutusi Manna
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
- Applied Phycology and Biotechnology Division, CSIR−Central Salt & Marine Chemicals Research Institute (CSIR−CSMCRI), Gijubhai Badheka Marg, Bhavnagar, Gujarat 364002, India
| | - Rajesh K. Murarka
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
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22
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Lipowsky R, Dimova R. Introduction to remodeling of biomembranes. SOFT MATTER 2021; 17:214-221. [PMID: 33406179 DOI: 10.1039/d0sm90234a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In general, biomembranes and giant vesicles can respond to cues in their aqueous environment by remodeling their molecular composition, shape, or topology. This themed collection focuses on remodeling of membrane shape which is intimately related to membrane curvature. In this introductory contribution, we clarify the different notions of curvature and describe the general nanoscopic mechanisms for curvature generation and membrane scaffolding. At the end, we give a brief outlook on membrane tension.
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Affiliation(s)
- Reinhard Lipowsky
- Theory and Bio-Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
| | - Rumiana Dimova
- Theory and Bio-Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.
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Godhamgaonkar AA, Wadhwani NS, Joshi SR. Exploring the role of LC-PUFA metabolism in pregnancy complications. Prostaglandins Leukot Essent Fatty Acids 2020; 163:102203. [PMID: 33227645 DOI: 10.1016/j.plefa.2020.102203] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/09/2020] [Accepted: 11/07/2020] [Indexed: 12/14/2022]
Abstract
Maternal nutrition during pregnancy plays a significant role in growth and development of the placenta and influencing pregnancy outcome. Suboptimal nutritional status during early gestational period compromises the normal course of pregnancy leading to adverse maternal and fetal outcomes. Omega-3 and omega-6 long chain polyunsaturated fatty acids (LC-PUFA) are important for the growth and development of the placenta. Maternal fatty acids and their metabolites influence the normal course of pregnancy by regulating cell growth and development, cell signaling, regulate angiogenesis, modulate inflammatory responses and influence various structural and functional processes. Alterations in LC-PUFA and their metabolites may result in inadequate spiral artery remodeling or placental angiogenesis leading to structural and functional deficiency of the placenta which contributes to several pregnancy complications like preeclampsia, gestational diabetes mellitus, intrauterine growth restriction, and results in adverse birth outcomes. In this review, we summarize studies examining the role of fatty acids and their metabolites in pregnancy. We also discuss the possible molecular mechanisms through which LC-PUFA influences placental growth and development. Studies have demonstrated that omega-3 fatty acid supplementation lowers the incidence of preterm births, but its effect on reducing pregnancy complications are inconclusive.
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Affiliation(s)
- Aditi A Godhamgaonkar
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune-Satara Road, Pune 411043, India
| | - Nisha S Wadhwani
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune-Satara Road, Pune 411043, India
| | - Sadhana R Joshi
- Mother and Child Health, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to be University), Pune-Satara Road, Pune 411043, India.
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Sialic acid associated with oxidative stress and total antioxidant capacity (TAC) expression level as a predictive indicator in moderate to severe Alzheimer's disease. Exp Gerontol 2020; 141:111092. [PMID: 32991981 DOI: 10.1016/j.exger.2020.111092] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Several studies have shown many risk factors associated with disease onset, but the sialic acid association with oxidative stress biomarkers may a key factor in the pathogenesis of Alzheimer's disease (AD). We aim to find out the most specific biomarker from the peripheral blood samples in moderate to severe Alzheimer's patients. METHODS This study examined the level of sialic acid associated with oxidative stress biomarkers and total antioxidant capacity level (TAC) in the plasma samples. Different parameters of Oxidative stress and Total antioxidant capacity by the immunoassay method have been examined in AD patients as compared to controls. The Catalase (CAT), Superoxide dismutase (SOD), Lipid peroxidation (LPO), Glutathione peroxidase (GPx), Total Glutathione (GSH), and Protein carbonyl group levels were estimated in this study. RESULTS Increased level of sialic acid is found associated with a higher level of reactive oxygen species parameters in the patients. The antioxidant parameter levels have been found significantly lower in AD, while Protein carbonyl group and lipid peroxidation were increased in cases as compared to controls with the area under the curve (AUC) 0.816, p < 0.0001 and 0.754, p < 0.0001. The Protein carbonyl group, Total antioxidant capacity (TAC), and Sigma-Aldrich TAC levels were higher in females as compared to males in AD patients. CONCLUSION During AD pathology, sialic acid, protein carbonyl, and lipid peroxidation were found as the more sensitive marker that may be used as a diagnostic and prognostic biomarker.
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Zec MM, Stojković L, Zeković M, Pokimica B, Zivkovic M, Stankovic A, Glibetic M. FADS2 polymorphisms are associated with plasma arachidonic acid and estimated desaturase-5 activity in a cross-sectional study. Nutr Res 2020; 83:49-62. [PMID: 33011673 DOI: 10.1016/j.nutres.2020.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 08/10/2020] [Accepted: 08/17/2020] [Indexed: 12/17/2022]
Abstract
Polymorphisms in FADS genes are associated with plasma long-chain polyunsaturated fatty acids (LC-PUFA) and modulate omega-6/omega-3 balance. We hypothesized that the FADS2 gene variants will be associated with lower product-to-precursor ratio in the fatty acid metabolic pathways. Thus, we explored FADS2 rs174593, rs174616, and rs174576 effects on plasma phospholipid fatty acid profile, markers of desaturase activities, and risk factors in a sample of apparently healthy Serbian adults. Food and nutrient intake data were compiled through 24 h recalls. Plasma phospholipid fatty acid content was assessed by gas-chromatography. Estimated desaturase activities were calculated as conversion rates towards LC-PUFA in omega-6 pathway. During the selection of FADS2 polymorphisms, we accounted for their positional and functional aspect. Genotyping was performed by Real-Time PCR. Multivariable-adjusted general linear and hierarchical regression models were applied. Study subjects (mean age = 40 ± 7 years, 70% who were overweight) had a median dietary omega-6/omega-3 ratio of 16.29. Alternative allele frequencies were 33%, 36%, and 51% for rs174593, rs174576, and rs174616, respectively. Addition of FADS2 alternative alleles was associated with lower plasma arachidonic acid (AA, C20:4 n-6, P < .001) and estimated desaturase-5 activity (P < .001), irrespective of gender, age, daily polyunsaturated/saturated fatty acid intake, and obesity. The rs174576 association with AA withstood multiple testing and additional adjustments for other variants (multivariable-adjusted β = -1.14 [95% CI: -2.25, -0.43]). None of the variants was associated with dietary intake, serum lipids, or obesity. We observed inverse associations between FADS2 variants and plasma AA but not omega-3 fatty acids in Serbian subjects, with rs174576 exhibiting the strongest relation.
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Affiliation(s)
- Manja M Zec
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia.
| | - Ljiljana Stojković
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade 11000, Serbia
| | - Milica Zeković
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
| | - Biljana Pokimica
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
| | - Maja Zivkovic
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade 11000, Serbia
| | - Aleksandra Stankovic
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade 11000, Serbia
| | - Maria Glibetic
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
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26
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The roles of the diversity of amphipathic lipids in shaping membranes by membrane-shaping proteins. Biochem Soc Trans 2020; 48:837-851. [PMID: 32597479 DOI: 10.1042/bst20190376] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/02/2020] [Accepted: 06/05/2020] [Indexed: 12/23/2022]
Abstract
Lipid compositions of cells differ according to cell types and intracellular organelles. Phospholipids are major cell membrane lipids and have hydrophilic head groups and hydrophobic fatty acid tails. The cellular lipid membrane without any protein adapts to spherical shapes, and protein binding to the membrane is thought to be required for shaping the membrane for various cellular events. Until recently, modulation of cellular lipid membranes was initially shown to be mediated by proteins recognizing lipid head groups, including the negatively charged ones of phosphatidylserine and phosphoinositides. Recent studies have shown that the abilities of membrane-deforming proteins are also regulated by the composition of fatty acid tails, which cause different degrees of packing defects. The binding of proteins to cellular lipid membranes is affected by the packing defects, presumably through modulation of their interactions with hydrophobic amino acid residues. Therefore, lipid composition can be characterized by both packing defects and charge density. The lipid composition regarding fatty acid tails affects membrane bending via the proteins with amphipathic helices, including those with the ArfGAP1 lipid packing sensor (ALPS) motif and via membrane-deforming proteins with structural folding, including those with the Bin-Amphiphysin-Rvs167 (BAR) domains. This review focuses on how the fatty acid tails, in combination with the head groups of phospholipids, affect protein-mediated membrane deformation.
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27
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Yonezawa K, Kusumoto Y, Kanchi N, Kinoshita H, Kanegae S, Yamaguchi N, Ozawa H. Recent trends in mental illness and omega-3 fatty acids. J Neural Transm (Vienna) 2020; 127:1491-1499. [DOI: 10.1007/s00702-020-02212-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/19/2020] [Indexed: 01/24/2023]
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Di Miceli M, Bosch-Bouju C, Layé S. PUFA and their derivatives in neurotransmission and synapses: a new hallmark of synaptopathies. Proc Nutr Soc 2020; 79:1-16. [PMID: 32299516 DOI: 10.1017/s0029665120000129] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PUFA of the n-3 and n-6 families are present in high concentration in the brain where they are major components of cell membranes. The main forms found in the brain are DHA (22 :6, n-3) and arachidonic acid (20:4, n-6). In the past century, several studies pinpointed that modifications of n-3 and n-6 PUFA levels in the brain through dietary supply or genetic means are linked to the alterations of synaptic function. Yet, synaptopathies emerge as a common characteristic of neurodevelopmental disorders, neuropsychiatric diseases and some neurodegenerative diseases. Understanding the mechanisms of action underlying the activity of PUFA at the level of synapses is thus of high interest. In this frame, dietary supplementation in PUFA aiming at restoring or promoting the optimal function of synapses appears as a promising strategy to treat synaptopathies. This paper reviews the link between dietary PUFA, synapse formation and the role of PUFA and their metabolites in synaptic functions.
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Affiliation(s)
- Mathieu Di Miceli
- INRAE, University of Bordeaux, Bordeaux INP, NutriNeuro, UMR 1286, F-33000, Bordeaux, France
| | - Clémentine Bosch-Bouju
- INRAE, University of Bordeaux, Bordeaux INP, NutriNeuro, UMR 1286, F-33000, Bordeaux, France
| | - Sophie Layé
- INRAE, University of Bordeaux, Bordeaux INP, NutriNeuro, UMR 1286, F-33000, Bordeaux, France
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29
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Eto M, Shindou H, Yamamoto S, Tamura-Nakano M, Shimizu T. Lysophosphatidylethanolamine acyltransferase 2 (LPEAT2) incorporates DHA into phospholipids and has possible functions for fatty acid-induced cell death. Biochem Biophys Res Commun 2020; 526:246-252. [PMID: 32204912 DOI: 10.1016/j.bbrc.2020.03.074] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 12/21/2022]
Abstract
Glycerophospholipids, one of the main constituents of biological membranes, are synthesized from glycerol-3-phosphate through the de novo pathway, and are reconstituted through the remodeling pathway. Lysophosphatidylethanolamine acyltransferase 2 (LPEAT2), one of the enzymes that play a role in the remodeling pathway, has been previously reported to have LPEAT, lysophosphatidylcholine acyltransferase (LPCAT) and lysophosphatidylglycerol acyltransferase (LPGAT) activities with 16:0-CoA, 18:0-CoA, and 18:1-CoA as donors. In this study, we found that LPEAT2 is active with 22:6-CoA. Knockdown studies using Neuro 2A cells showed that LPEAT2 has endogenous LPEAT activity with 22:6-CoA, and that LPEAT2 has functions for modulating 22:6/20:4 ratios of phospholipids. In addition, we demonstrated that Neuro 2A cells overexpressing LPEAT2 underwent cell death with necrotic morphology when differentiated into neuron-like cells, with supplementation with 22:6 (DHA). These results suggest that LPEAT2 plays a role in inducing cell death DHA-dependently. This study will lead to better understand how DHA levels are regulated in phospholipids, especially in the brain where LPEAT2 is highly expressed. Our study also provides insight to understand the mechanism of cell death induced by DHA.
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Affiliation(s)
- Miki Eto
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Hideo Shindou
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan; Department of Lipid Science, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Shota Yamamoto
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Miwa Tamura-Nakano
- Department of Communal Laboratory, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Takao Shimizu
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, 162-8655, Japan; Department of Lipidomics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
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30
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Song L, Yang L, Wang J, Liu X, Bai L, Di A, Li G. Generation of Fad2 and Fad3 transgenic mice that produce n-6 and n-3 polyunsaturated fatty acids. Open Biol 2019; 9:190140. [PMID: 31640475 PMCID: PMC6833225 DOI: 10.1098/rsob.190140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Linoleic acid (18 : 2, n-6) and α-linolenic acid (18 : 3, n-3) are polyunsaturated fatty acids (PUFAs), which are essential for mammalian health, development and growth. However, the majority of mammals, including humans, are incapable of synthesizing n-6 and n-3 PUFAs. Mammals must obtain n-6 and n-3 PUFAs from their diet. Fatty acid desaturase (Fad) plays a critical role in plant PUFA biosynthesis. Therefore, we generated plant-derived Fad3 single and Fad2–Fad3 double transgenic mice. Compared with wild-type mice, we found that PUFA levels were greatly increased in the single and double transgenic mice by measuring PUFA levels. Moreover, the concentration of n-6 and n-3 PUFAs in the Fad2–Fad3 double transgenic mice were greater than in the Fad3 single transgenic mice. These results demonstrate that the plant-derived Fad2 and Fad3 genes can be expressed in mammals. To clarify the mechanism for Fad2 and Fad3 genes in transgenic mice, we measured the PUFAs synthesis-related genes. Compared with wild-type mice, these Fad transgenic mice have their own n-3 and n-6 PUFAs biosynthetic pathways. Thus, we have established a simple and efficient method for in vivo synthesis of PUFAs.
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Affiliation(s)
- Lishuang Song
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China.,College of Life Science, Inner Mongolia University, Hohhot 010070, People's Republic of China
| | - Lei Yang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China
| | - Jiapeng Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China.,College of Life Science, Inner Mongolia University, Hohhot 010070, People's Republic of China
| | - Xuefei Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China
| | - Lige Bai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China.,College of Life Science, Inner Mongolia University, Hohhot 010070, People's Republic of China
| | - Anqi Di
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China.,College of Life Science, Inner Mongolia University, Hohhot 010070, People's Republic of China
| | - Guangpeng Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), Inner Mongolia University, Hohhot 010070, People's Republic of China.,College of Life Science, Inner Mongolia University, Hohhot 010070, People's Republic of China
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31
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Harris DN, Ruczinski I, Yanek LR, Becker LC, Becker DM, Guio H, Cui T, Chilton FH, Mathias RA, O'Connor TD. Evolution of Hominin Polyunsaturated Fatty Acid Metabolism: From Africa to the New World. Genome Biol Evol 2019; 11:1417-1430. [PMID: 30942856 PMCID: PMC6514828 DOI: 10.1093/gbe/evz071] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2019] [Indexed: 12/23/2022] Open
Abstract
The metabolic conversion of dietary omega-3 and omega-6 18 carbon (18C) to long chain (>20 carbon) polyunsaturated fatty acids (LC-PUFAs) is vital for human life. The rate-limiting steps of this process are catalyzed by fatty acid desaturase (FADS) 1 and 2. Therefore, understanding the evolutionary history of the FADS genes is essential to our understanding of hominin evolution. The FADS genes have two haplogroups, ancestral and derived, with the derived haplogroup being associated with more efficient LC-PUFA biosynthesis than the ancestral haplogroup. In addition, there is a complex global distribution of these haplogroups that is suggestive of Neanderthal introgression. We confirm that Native American ancestry is nearly fixed for the ancestral haplogroup, and replicate a positive selection signal in Native Americans. This positive selection potentially continued after the founding of the Americas, although simulations suggest that the timing is dependent on the allele frequency of the ancestral Beringian population. We also find that the Neanderthal FADS haplotype is more closely related to the derived haplogroup and the Denisovan clusters closer to the ancestral haplogroup. Furthermore, the derived haplogroup has a time to the most recent common ancestor of 688,474 years before present. These results support an ancient polymorphism, as opposed to Neanderthal introgression, forming in the FADS region during the Pleistocene with possibly differential selection pressures on both haplogroups. The near fixation of the ancestral haplogroup in Native American ancestry calls for future studies to explore the potential health risk of associated low LC-PUFA levels in these populations.
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Affiliation(s)
- Daniel N Harris
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland.,Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland.,Program in Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Ingo Ruczinski
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Lisa R Yanek
- GeneSTAR Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Lewis C Becker
- GeneSTAR Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Diane M Becker
- GeneSTAR Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Heinner Guio
- Laboratorio de Biología Molecular, Instituto Nacional de Salud, Lima, Perú
| | - Tao Cui
- Department of Urology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Floyd H Chilton
- Department of Nutritional Sciences, University of Arizona, Tucson, Arizona
| | - Rasika A Mathias
- GeneSTAR Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Timothy D O'Connor
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland.,Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland.,Program in Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, Maryland
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32
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van Diggelen F, Hrle D, Apetri M, Christiansen G, Rammes G, Tepper A, Otzen DE. Two conformationally distinct α-synuclein oligomers share common epitopes and the ability to impair long-term potentiation. PLoS One 2019; 14:e0213663. [PMID: 30901378 PMCID: PMC6430514 DOI: 10.1371/journal.pone.0213663] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/26/2019] [Indexed: 02/01/2023] Open
Abstract
Parkinson’s Disease (PD) is a neurodegenerative disease for which there currently is no cure. Aggregation of the pre-synaptic protein α-synuclein (aSN) into oligomers (αSOs) is believed to play a key role in PD pathology, but little is known about αSO formation in vivo and how they induce neurodegeneration. Both the naturally occurring polyunsaturated fatty acid docosahexaenoic acid (DHA) and the lipid peroxidation product 4-hydroxynonenal (HNE), strongly upregulated during ROS conditions, stimulate the formation of αSOs, highlighting a potential role in PD. Yet, insight into αSOs structure and biological effects is still limited as most oligomer preparations studied to date are heterogeneous in composition. Here we have aggregated aSN in the presence of HNE and DHA and purified the αSOs using size exclusion chromatography. Both compounds stimulate formation of spherical αSOs containing anti-parallel β-sheet structure which have the same shape as unmodified αSOs though ca. 2-fold larger. Furthermore, the yield and stabilities of these oligomers are significantly higher than for unmodified aSN. Both modified and unmodified αSOs permeabilize synthetic vesicles, show high co-localisation with glutamatergic synapses and decrease Long Term Potentiation (LTP), in line with the reported synaptotoxic effects of αSOs. We conclude that DHA- and HNE-αSOs are convenient models for pathogenic disease-associated αSOs in PD.
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Affiliation(s)
- Femke van Diggelen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark
- Crossbeta Biosciences BV, Utrecht, The Netherlands
| | - Dean Hrle
- Klinik für Anaesthesiologie der Technischen Universität München, Klinikum Rechts der Isar, Munich, Germany
| | | | | | - Gerhard Rammes
- Klinik für Anaesthesiologie der Technischen Universität München, Klinikum Rechts der Isar, Munich, Germany
| | | | - Daniel Erik Otzen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C, Denmark
- * E-mail:
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Li R, Bao L, Hu W, Liang H, Dang X. Expression of miR-210 mediated by adeno-associated virus performed neuroprotective effects on a rat model of acute spinal cord injury. Tissue Cell 2019; 57:22-33. [PMID: 30947960 DOI: 10.1016/j.tice.2019.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 01/20/2019] [Accepted: 02/08/2019] [Indexed: 10/27/2022]
Abstract
Acute spinal cord injuries (ASCI) are common neural disorders in traumatology medicine. MicroRNA-210 (miR-210) plays a crucial role in cell survival, endothelial cell migration and cell regeneration. This paper is aim to validate the pathophysiological function of miR-210 on ASCI. We built a rat model of ASCI and utilized an adeno-associated virus (rAAV)-expressing miR-210 for stable over-expression of miR-210. We tested in vivo miR-210 gain of function on ASCI by microinjected rAAV-miR-210 into the rat spinal cord. We further screened the targeting genes of miR-210 by PCR array and detected related signal proteins by Western Blot and qPCR. Over-expression of miR-210 protected neurons while neurologic function scores were improved. We further identified less TUNEL-positive cells, few features of apoptosis under electron microscopy, decreased activities of caspase-3 and 8 and increased vessel count in the spinal cord from rAAV-miR-210 group. We also found rAAV-miR-210 promoted expression of angiogenesis and metastasis-related protein (VEGF and Glut1) and regulated serum levels of inflammation-related cytokines. PCR screen array showed PTP1B, target of miR-210, was significantly down-regulated and Akt phosphorylation was significantly increased in rAAV-miR-210 group. The current data suggest that over-expression of miR-210 may target PTP1B and plays a neuroprotective role on rats after ASCI.
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Affiliation(s)
- Ruofei Li
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, Shaanxi, 710004, China; Department of Orthopaedics, The Central Hospital of Xianyang, No. 78, Renming East Road, Xianyang, Shaanxi, 712000, China.
| | - Lizhong Bao
- Department of Orthopaedics, The Central Hospital of Xianyang, No. 78, Renming East Road, Xianyang, Shaanxi, 712000, China.
| | - Wei Hu
- Department of Orthopaedics, The Central Hospital of Xianyang, No. 78, Renming East Road, Xianyang, Shaanxi, 712000, China.
| | - Huiping Liang
- Department of Dermatology, The Central Hospital of Xianyang, No. 78, Renming East Road, Xianyang, Shaanxi, 712000, China.
| | - Xiaoqian Dang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, Shaanxi, 710004, China.
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Kim Y, Clifton P. Curcumin, Cardiometabolic Health and Dementia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102093. [PMID: 30250013 PMCID: PMC6210685 DOI: 10.3390/ijerph15102093] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/15/2018] [Accepted: 09/20/2018] [Indexed: 02/07/2023]
Abstract
Current research indicates curcumin [diferuloylmethane; a polyphenolic compound isolated from the rhizomes of the dietary spice turmeric (Curcuma longa)] exerts a beneficial effect on health which may be partly attributable to its anti-oxidative and anti-inflammatory properties. The aim of this review is to examine potential mechanisms of the actions of curcumin in both animal and human studies. Curcumin modulates relevant molecular target pathways to improve glucose and lipid metabolism, suppress inflammation, stimulate antioxidant enzymes, facilitate insulin signalling and reduce gut permeability. Curcumin also inhibits Aβ and tau accumulation in animal models and enhances mitochondria and synaptic function. In conclusion, in high-dose animal studies and in vitro, curcumin exerts a potential beneficial effect on cardiometabolic disease. However, human studies are relatively unconvincing. More intervention studies should be conducted with the new curcumin formulation with improved oral bioavailability.
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Affiliation(s)
- Yoona Kim
- Department of Food and Nutrition/Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea.
| | - Peter Clifton
- School of Pharmacy and Medical Sciences, University of South Australia, General Post Office Box 2471, Adelaide, SA 5001, Australia.
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Lenhartova N, Matasova K, Lasabova Z, Javorka K, Calkovska A. Impact of early aggressive nutrition on retinal development in premature infants. Physiol Res 2018; 66:S215-S226. [PMID: 28937236 DOI: 10.33549/physiolres.933677] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The normal retinal development is interrupted by preterm birth and a retinopathy of prematurity (ROP) may develop as its consequence. ROP is characterized by aberrant vessel formation in the retina as a response to multiple risk factors influencing the process of retinal angiogenesis. Insulin-like growth factor I (IGF-1) and vascular endothelial growth factor (VEGF) play an important role in the process of normal retinal vascularization. Insufficient nutrition during the first 4 postnatal weeks results in low serum levels of IGF-1, which is essential for correct retinal vessels formation, ensuring survival of the newly formed endothelial cells. Low IGF-1 level results in stop of angiogenesis in the retina, leaving it avascular and prompting the onset of ROP. Keeping the newborns in a positive energetic balance by providing enough nutrients and energy has a beneficial impact on their growth, neurodevelopment and decreased incidence of ROP. The best way to achieve this is the early parenteral nutrition with the high content of nutrients combined with early enteral feeding by the own mother´s breast milk. Multiple studies confirmed the safety and efficacy of early aggressive nutrition but information about its long-term effects on the metabolism, growth and development is still needed.
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Affiliation(s)
- N Lenhartova
- Clinic of Neonatology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Hospital, Martin, Slovakia.
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Manni MM, Tiberti ML, Pagnotta S, Barelli H, Gautier R, Antonny B. Acyl chain asymmetry and polyunsaturation of brain phospholipids facilitate membrane vesiculation without leakage. eLife 2018. [PMID: 29543154 PMCID: PMC5903860 DOI: 10.7554/elife.34394] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Phospholipid membranes form cellular barriers but need to be flexible enough to divide by fission. Phospholipids generally contain a saturated fatty acid (FA) at position sn1 whereas the sn2-FA is saturated, monounsaturated or polyunsaturated. Our understanding of the impact of phospholipid unsaturation on membrane flexibility and fission is fragmentary. Here, we provide a comprehensive view of the effects of the FA profile of phospholipids on membrane vesiculation by dynamin and endophilin. Coupled to simulations, this analysis indicates that: (i) phospholipids with two polyunsaturated FAs make membranes prone to vesiculation but highly permeable; (ii) asymmetric sn1-saturated-sn2-polyunsaturated phospholipids provide a tradeoff between efficient membrane vesiculation and low membrane permeability; (iii) When incorporated into phospholipids, docosahexaenoic acid (DHA; omega-3) makes membranes more deformable than arachidonic acid (omega-6). These results suggest an explanation for the abundance of sn1-saturated-sn2-DHA phospholipids in synaptic membranes and for the importance of the omega-6/omega-3 ratio on neuronal functions. Surrounding each living cell is a membrane that is mainly made of fat molecules called phospholipids. Similar membranes also surround many of the structures inside cells. It is important for life that these membranes are impermeable to many molecules; for example, they do not allow ions to cross them freely. The membranes also need to be flexible and allow cells to form different shapes. Flexible membranes also allow cells to move molecules around and to divide to produce new cells. Each phospholipid includes two long chains of atoms called fatty acids. There are many fatty acids but they are typically grouped into saturated and unsaturated based on their chemical structures. The omega-3 and omega-6 fats are both groups of unsaturated fatty acids that are found in brain cells. Many phospholipids in cell membranes contain one saturated and one unsaturated fatty acid but it is not clear why. By studying fat molecules in the laboratory and combining this with simulations, Manni et al. have now examined the effects of fatty acids on membranes. The investigation showed that phospholipids with both saturated and unsaturated fatty acids strike a balance between impermeable and flexible membranes. More unsaturated fatty acids make more flexible membranes but they are too permeable to be used in cells. The experiments also revealed that omega-3 unsaturated fats aid flexibility more than omega-6. This finding may help to explain why the relative amounts of omega-3 and -6 are so important in the membranes of brain cells. The connection between the fats we eat and the fatty acids in our cells is complex. Yet, findings like these serve to remind us that we need a balanced diet of different fats to keep all our cells healthy.
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Affiliation(s)
- Marco M Manni
- Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur et CNRS, Valbonne, France.,Instituto Biofisika (UPV/EHU, CSIC), Leioa, Spain
| | - Marion L Tiberti
- Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur et CNRS, Valbonne, France
| | - Sophie Pagnotta
- Centre Commun de Microscopie Appliquée, Université Côte d'Azur, Nice, France
| | - Hélène Barelli
- Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur et CNRS, Valbonne, France
| | - Romain Gautier
- Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur et CNRS, Valbonne, France
| | - Bruno Antonny
- Institut de Pharmacologie Moléculaire et Cellulaire, Université Côte d'Azur et CNRS, Valbonne, France
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Brouwer-Brolsma EM, van de Rest O, Godschalk R, Zeegers MPA, Gielen M, de Groot RHM. Associations between maternal long-chain polyunsaturated fatty acid concentrations and child cognition at 7 years of age: The MEFAB birth cohort. Prostaglandins Leukot Essent Fatty Acids 2017; 126:92-97. [PMID: 29031402 DOI: 10.1016/j.plefa.2017.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/12/2017] [Accepted: 09/19/2017] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Concentrations of the fish fatty acids EPA and DHA are low among Dutch women of reproductive age. As the human brain incorporates high concentrations of these fatty acids in utero, particularly during third trimester of gestation, these low EPA and DHA concentrations may have adverse consequences for fetal brain development and functioning. METHODS Analyses were conducted using longitudinal observational data of 292 mother-child pairs participating in the MEFAB cohort. Maternal AA, DHA, and EPA were determined in plasma phospholipids - obtained in three trimesters - by gas-liquid chromatography. Cognitive function was assessed at 7 years of age, using the Kaufman Assessment Battery for Children, resulting in three main outcome parameters: sequential processing (short-term memory), simultaneous processing (problem-solving skills), and the mental processing composite score. Spline regression and linear regression analyses were used to analyse the data, while adjusting for potential relevant covariates. RESULTS Only 2% of the children performed more than one SD below the mental processing composite norm score. Children with lower test scores (<25%) were more likely to have a younger mother with a higher pre-gestational BMI, less likely to be breastfed, and more likely to be born with a lower birth weight, compared to children with higher test scores (≥25%). Fully-adjusted linear regression models did not show associations of maternal AA, DHA, or EPA status during any of the pregnancy trimesters with childhood sequential and simultaneous processing. CONCLUSION Maternal fatty acid status during pregnancy was not associated with cognitive performance in Dutch children at age 7.
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Affiliation(s)
- E M Brouwer-Brolsma
- Division of Human Nutrition, Wageningen University & Research, PO Box 8129, 6700 EV Wageningen, The Netherlands.
| | - O van de Rest
- Division of Human Nutrition, Wageningen University & Research, PO Box 8129, 6700 EV Wageningen, The Netherlands
| | - R Godschalk
- NUTRIM School for Nutrition and Translational Research in Metabolism, Department of Complex Genetics, Maastricht University, Maastricht, The Netherlands
| | - M P A Zeegers
- NUTRIM School for Nutrition and Translational Research in Metabolism, Department of Complex Genetics, Maastricht University, Maastricht, The Netherlands
| | - M Gielen
- NUTRIM School for Nutrition and Translational Research in Metabolism, Department of Complex Genetics, Maastricht University, Maastricht, The Netherlands
| | - R H M de Groot
- NUTRIM School for Nutrition and Translational Research in Metabolism, Department of Complex Genetics, Maastricht University, Maastricht, The Netherlands; Faculty of Psychology and Educational Sciences, Welten Institute, Open University of the Netherlands, Heerlen, The Netherlands
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Navarini L, Afeltra A, Gallo Afflitto G, Margiotta DPE. Polyunsaturated fatty acids: any role in rheumatoid arthritis? Lipids Health Dis 2017; 16:197. [PMID: 29017507 PMCID: PMC5634864 DOI: 10.1186/s12944-017-0586-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 10/02/2017] [Indexed: 12/12/2022] Open
Abstract
Background Polyunsaturated fatty acids (PUFAs) are members of the family of fatty acids and are included in the diet. Particularly, western diet is usually low in n-3 PUFAs and high in n-6 PUFAs. PUFAs play a central role in the homeostasis of immune system: n-6 PUFAs have predominantly pro-inflammatory features, while n-3 PUFAs seem to exert anti-inflammatory and pro-resolving properties. Rheumatoid arthritis (RA) is a chronic inflammatory arthritis in which many inflammatory pathways contribute to joint and systemic inflammation, disease activity, and structural damage. Research on PUFAs could represent an important opportunity to better understand the pathogenesis and to improve the management of RA patients. Methods We searched PubMed, Embase, EBSCO-Medline, Cochrane Central Register of Controlled Trials (CENTRAL), CNKI and Wanfang to identify primary research reporting the role of n-3 PUFAs in rheumatoid arthritis both in humans and in animal models up to the end of March 2017. Results Data from animal models allows to hypothesize that n-3 PUFAs supplementation may represent an interesting perspective in future research as much in prevention as in treating RA. In humans, several case-control and prospective cohort studies suggest that a high content of n-3 PUFAs in the diet could have a protective role for incident RA in subjects at risk. Moreover, n-3 PUFAs supplementation has been assessed as a valuable therapeutic option also for patients with RA, particularly in order to improve the pain symptoms, the tender joint count, the duration of morning stiffness and the frequency of NSAIDs assumption. Conclusions n-3 PUFAs supplementation could represent a promising therapeutic option to better control many features of RA. The impact of n-3 PUFAs on radiographic progression and synovial histopathology has not been yet evaluated, as well as their role in early arthritis and the combination with biologics.
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Affiliation(s)
- Luca Navarini
- Unit of Allergology, Immunology, Rheumatology, Department of Medicine, Università Campus Bio-Medico di Roma, via Álvaro del Portillo 21, 00128, Rome, Italy.
| | - Antonella Afeltra
- Unit of Allergology, Immunology, Rheumatology, Department of Medicine, Università Campus Bio-Medico di Roma, via Álvaro del Portillo 21, 00128, Rome, Italy
| | - Gabriele Gallo Afflitto
- Unit of Allergology, Immunology, Rheumatology, Department of Medicine, Università Campus Bio-Medico di Roma, via Álvaro del Portillo 21, 00128, Rome, Italy
| | - Domenico Paolo Emanuele Margiotta
- Unit of Allergology, Immunology, Rheumatology, Department of Medicine, Università Campus Bio-Medico di Roma, via Álvaro del Portillo 21, 00128, Rome, Italy
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Maekawa M, Watanabe A, Iwayama Y, Kimura T, Hamazaki K, Balan S, Ohba H, Hisano Y, Nozaki Y, Ohnishi T, Toyoshima M, Shimamoto C, Iwamoto K, Bundo M, Osumi N, Takahashi E, Takashima A, Yoshikawa T. Polyunsaturated fatty acid deficiency during neurodevelopment in mice models the prodromal state of schizophrenia through epigenetic changes in nuclear receptor genes. Transl Psychiatry 2017; 7:e1229. [PMID: 28872641 PMCID: PMC5639238 DOI: 10.1038/tp.2017.182] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/26/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022] Open
Abstract
The risk of schizophrenia is increased in offspring whose mothers experience malnutrition during pregnancy. Polyunsaturated fatty acids (PUFAs) are dietary components that are crucial for the structural and functional integrity of neural cells, and PUFA deficiency has been shown to be a risk factor for schizophrenia. Here, we show that gestational and early postnatal dietary deprivation of two PUFAs-arachidonic acid (AA) and docosahexaenoic acid (DHA)-elicited schizophrenia-like phenotypes in mouse offspring at adulthood. In the PUFA-deprived mouse group, we observed lower motivation and higher sensitivity to a hallucinogenic drug resembling the prodromal symptoms in schizophrenia. Furthermore, a working-memory task-evoked hyper-neuronal activity in the medial prefrontal cortex was also observed, along with the downregulation of genes in the prefrontal cortex involved in oligodendrocyte integrity and the gamma-aminobutyric acid (GABA)-ergic system. Regulation of these genes was mediated by the nuclear receptor genes Rxr and Ppar, whose promoters were hyper-methylated by the deprivation of dietary AA and DHA. In addition, the RXR agonist bexarotene upregulated oligodendrocyte- and GABA-related gene expression and suppressed the sensitivity of mice to the hallucinogenic drug. Notably, the expression of these nuclear receptor genes were also downregulated in hair-follicle cells from schizophrenia patients. These results suggest that PUFA deficiency during the early neurodevelopmental period in mice could model the prodromal state of schizophrenia through changes in the epigenetic regulation of nuclear receptor genes.
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Affiliation(s)
- M Maekawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - A Watanabe
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Iwayama
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - T Kimura
- Department of Alzheimer's Disease Research, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - K Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - S Balan
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - H Ohba
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Hisano
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Nozaki
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - T Ohnishi
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - M Toyoshima
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - C Shimamoto
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - K Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - M Bundo
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - N Osumi
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - E Takahashi
- Support Unit for Animal Resources Development, RIKEN Brain Science Institute, Saitama, Japan
| | - A Takashima
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
- Department of Life Sciences, Graduate School of Science, Gakushuin University, Tokyo, Japan
| | - T Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
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Jang SH, Jeong HJ, Kwon JE. High contents of eicosapentaenoic acid and docosahexaenoic acid in the mixotrophic dinoflagellate Paragymnodinium shiwhaense and identification of putative omega-3 biosynthetic genes. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.06.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Buckley MT, Racimo F, Allentoft ME, Jensen MK, Jonsson A, Huang H, Hormozdiari F, Sikora M, Marnetto D, Eskin E, Jørgensen ME, Grarup N, Pedersen O, Hansen T, Kraft P, Willerslev E, Nielsen R. Selection in Europeans on Fatty Acid Desaturases Associated with Dietary Changes. Mol Biol Evol 2017; 34:1307-1318. [PMID: 28333262 PMCID: PMC5435082 DOI: 10.1093/molbev/msx103] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
FADS genes encode fatty acid desaturases that are important for the conversion of short chain polyunsaturated fatty acids (PUFAs) to long chain fatty acids. Prior studies indicate that the FADS genes have been subjected to strong positive selection in Africa, South Asia, Greenland, and Europe. By comparing FADS sequencing data from present-day and Bronze Age (5-3k years ago) Europeans, we identify possible targets of selection in the European population, which suggest that selection has targeted different alleles in the FADS genes in Europe than it has in South Asia or Greenland. The alleles showing the strongest changes in allele frequency since the Bronze Age show associations with expression changes and multiple lipid-related phenotypes. Furthermore, the selected alleles are associated with a decrease in linoleic acid and an increase in arachidonic and eicosapentaenoic acids among Europeans; this is an opposite effect of that observed for selected alleles in Inuit from Greenland. We show that multiple SNPs in the region affect expression levels and PUFA synthesis. Additionally, we find evidence for a gene-environment interaction influencing low-density lipoprotein (LDL) levels between alleles affecting PUFA synthesis and PUFA dietary intake: carriers of the derived allele display lower LDL cholesterol levels with a higher intake of PUFAs. We hypothesize that the selective patterns observed in Europeans were driven by a change in dietary composition of fatty acids following the transition to agriculture, resulting in a lower intake of arachidonic acid and eicosapentaenoic acid, but a higher intake of linoleic acid and α-linolenic acid.
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Affiliation(s)
- Matthew T. Buckley
- Departments of Integrative Biology and Statistics, University of California Berkeley, Berkeley, CA
| | - Fernando Racimo
- Departments of Integrative Biology and Statistics, University of California Berkeley, Berkeley, CA
| | - Morten E. Allentoft
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
| | - Majken K. Jensen
- Department of Nutrition, Harvard T.H. Chan School of Public Health & Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Anna Jonsson
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen Ø, Denmark
| | - Hongyan Huang
- Program in Genetic Epidemiology and Statistical Genetics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Farhad Hormozdiari
- Department of Computer Science, University of California, Los Angeles, CA, USA
| | - Martin Sikora
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
| | - Davide Marnetto
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Turin, Italy
| | - Eleazar Eskin
- Department of Computer Science, University of California, Los Angeles, CA, USA
- Department of Human Genetics, University of California, Los Angeles, CA, USA
| | - Marit E. Jørgensen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Niels Grarup
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen Ø, Denmark
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen Ø, Denmark
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen Ø, Denmark
| | - Peter Kraft
- Program in Genetic Epidemiology and Statistical Genetics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Eske Willerslev
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
| | - Rasmus Nielsen
- Departments of Integrative Biology and Statistics, University of California Berkeley, Berkeley, CA
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen K, Denmark
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Pan G, Ameur A, Enroth S, Bysani M, Nord H, Cavalli M, Essand M, Gyllensten U, Wadelius C. PATZ1 down-regulates FADS1 by binding to rs174557 and is opposed by SP1/SREBP1c. Nucleic Acids Res 2017; 45:2408-2422. [PMID: 27932482 PMCID: PMC5389558 DOI: 10.1093/nar/gkw1186] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/02/2016] [Accepted: 11/24/2016] [Indexed: 11/14/2022] Open
Abstract
The FADS1 and FADS2 genes in the FADS cluster encode the rate-limiting enzymes in the synthesis of long-chain polyunsaturated fatty acids (LC-PUFAs). Genetic variation in this region has been associated with a large number of diseases and traits many of them correlated to differences in metabolism of PUFAs. However, the causative variants leading to these associations have not been identified. Here we find that the multiallelic rs174557 located in an AluYe5 element in intron 1 of FADS1 is functional and lies within a PATZ1 binding site. The derived allele of rs174557, which is the common variant in most populations, diminishes binding of PATZ1, a transcription factor conferring allele-specific downregulation of FADS1. The PATZ1 binding site overlaps with a SP1 site. The competitive binding between the suppressive PATZ1 and the activating complex of SP1 and SREBP1c determines the enhancer activity of this region, which regulates expression of FADS1.
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Affiliation(s)
- Gang Pan
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Adam Ameur
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Stefan Enroth
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Madhusudhan Bysani
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Helena Nord
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Marco Cavalli
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Magnus Essand
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Ulf Gyllensten
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
| | - Claes Wadelius
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75237, Sweden
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Lenzi Q, Correia-Santos AM, Lenzi-Almeida KC, Boaventura GT. Flaxseed used since pregnancy by the mother and after weaning by the offspring benefits the retina and optic nerve development in rats. J Matern Fetal Neonatal Med 2017; 31:625-632. [PMID: 28282776 DOI: 10.1080/14767058.2017.1293028] [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] [Indexed: 10/19/2022]
Abstract
OBJECTIVE This study aimed to evaluate the influence of a diet based on flaxseed upon the development of the nervous system, more specifically, the optic nerve and retina. METHODS Rats were divided into three groups: Control (CG), Flaxseed (FG), and Modified Control (MCG). The analyses were performed in the offspring (n = 6/group) at the immediate postnatal period (P0), 14 d of life (P14) and 30 d of life (P30). Descriptive analysis and histomorphometry of optic nerve and retina were performed. RESULTS There was a great evolution in the development of the nervous fascicles, connective trabeculae, and blood vessels, when comparing the three ages studied, and these characteristics were more evident in FG at all three ages. The P0, P14, and P30 retina showed similar morphology to that described in the literature. In histomorphometry, at P14, the FG presented the retina and its layers with significant increase in thickness, except for internal granular and ganglionar, whereas MCG had greater retina and photoreceptor layers thickness, inner plexiform and external granular when compared with CG (p < .05). CONCLUSION The use of flaxseed in the pre-and postnatal period displays favourable influence on the development of rat optic nerve and retina, probably leading to myelination.
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Affiliation(s)
- Queila Lenzi
- a Laboratory of Experimental Nutrition, Department of Nutrition and Dietetics , Nutrition College, Fluminense Federal University , Niterói , Rio de Janeiro , Brazil
| | - André Manoel Correia-Santos
- a Laboratory of Experimental Nutrition, Department of Nutrition and Dietetics , Nutrition College, Fluminense Federal University , Niterói , Rio de Janeiro , Brazil
| | - Kátia Calvi Lenzi-Almeida
- b Medical College, Rio de Janeiro Federal University - Campus UFRJ - Macaé , Rio de Janeiro , Brazil
| | - Gilson Teles Boaventura
- a Laboratory of Experimental Nutrition, Department of Nutrition and Dietetics , Nutrition College, Fluminense Federal University , Niterói , Rio de Janeiro , Brazil
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van Diggelen F, Tepper AWJW, Apetri MM, Otzen DE. α-Synuclein Oligomers: A Study in Diversity. Isr J Chem 2016. [DOI: 10.1002/ijch.201600116] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Femke van Diggelen
- Crossbeta Biosciences; Padualaan 8 3584CH Utrecht The Netherlands
- Interdisciplinary Nanoscience Centre (iNANO); Aarhus University; Gustav Wieds Vej 14 8000C Aarhus Denmark
| | | | | | - Daniel E. Otzen
- Interdisciplinary Nanoscience Centre (iNANO); Aarhus University; Gustav Wieds Vej 14 8000C Aarhus Denmark
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Nutrigenomic Functions of PPARs in Obesogenic Environments. PPAR Res 2016; 2016:4794576. [PMID: 28042289 PMCID: PMC5155092 DOI: 10.1155/2016/4794576] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/03/2016] [Indexed: 12/26/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors that mediate the effects of several nutrients or drugs through transcriptional regulation of their target genes in obesogenic environments. This review consists of three parts. First, we summarize current knowledge regarding the role of PPARs in governing the development of white and brown/beige adipocytes from uncommitted progenitor cells. Next, we discuss the interactions of dietary bioactive molecules, such as fatty acids and phytochemicals, with PPARs for the modulation of PPAR-dependent transcriptional activities and metabolic consequences. Lastly, the effects of PPAR polymorphism on obesity and metabolic outcomes are discussed. In this review, we aim to highlight the critical role of PPARs in the modulation of adiposity and subsequent metabolic adaptation in response to dietary challenges and genetic modifications. Understanding the changes in obesogenic environments as a consequence of PPARs/nutrient interactions may help expand the field of individualized nutrition to prevent obesity and obesity-associated metabolic comorbidities.
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Kang SJ, Seo JY, Cho KM, Lee CK, Kim JH, Kim JS. Antioxidant and Neuroprotective Effects of Doenjang Prepared with Rhizopus, Pichia, and Bacillus. Prev Nutr Food Sci 2016; 21:221-226. [PMID: 27752498 PMCID: PMC5063207 DOI: 10.3746/pnf.2016.21.3.221] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 07/07/2016] [Indexed: 12/30/2022] Open
Abstract
A new type of doenjang was manufactured by mixing soaked soybean, koji (Rhizopus oryzae), cheonggukjang (Bacillus amyloliquefaciens MJ1-4 and B. amyloliquefaciens EMD17), and Pichia farinosa SY80 as a yeast, salt, and water, followed by fermentation with koji that was made by fermenting whole wheat with R. oryzae. The mixed culture doenjang was designed to have a more palatable flavor and stronger biological activities than the conventional product. The extract of mixed culture doenjang showed higher antioxidant activity than the commercial doenjang as evaluated by the ferric reducing antioxidant power assay although it was not significantly different from the commercial product in 2,2-diphenyl-1-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical scavenging activities. Further, the mixed culture doenjang reduced intracellular reactive oxygen species levels and protected cells from glutamate-induced cytotoxicity more efficiently in human hippocampal HT22 neuroblastoma cells than the commercial doenjang. In conclusion, a newly-developed mixed culture doenjang had a strong antioxidant activity in vitro and cultured cell model systems, exhibited a potential to prevent oxidative stress-associated disorders although animal and clinical studies are needed to confirm its in vivo efficacy.
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Affiliation(s)
- Su Jin Kang
- School of Food Science and Biotechnology (BK21 Plus Program), Kyungpook National University, Daegu 41566, Korea
| | - Ji Yeon Seo
- School of Food Science and Biotechnology (BK21 Plus Program), Kyungpook National University, Daegu 41566, Korea
| | - Kye Man Cho
- Department of Food Science, Gyeongnam National University of Science and Technology, Gyeongnam 52725, Korea
| | - Chang Kwon Lee
- Department of Research and Developement, Monggo Foods Co., Ltd., Gyeongnam 51395, Korea
| | - Jeong Hwan Kim
- Division of Applied Life Science (BK21 Plus), Graduate School, and Institute of Agriculture and Life Science, Gyeongsang National University, Gyeongnam 52828, Korea
| | - Jong-Sang Kim
- School of Food Science and Biotechnology (BK21 Plus Program), Kyungpook National University, Daegu 41566, Korea; Institute of Agricultural Science and Technology, Kyungpook National University, Daegu 41566, Korea
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Lipids, Fatty Acids, and Fucoxanthin Content from Temperate and Tropical Brown Seaweeds. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.aqpro.2016.07.009] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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48
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Membrane Lipids in Presynaptic Function and Disease. Neuron 2016; 90:11-25. [DOI: 10.1016/j.neuron.2016.02.033] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/28/2016] [Accepted: 02/18/2016] [Indexed: 12/20/2022]
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49
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Effects of pre-natal alcohol exposure on hippocampal synaptic plasticity: Sex, age and methodological considerations. Neurosci Biobehav Rev 2016; 64:12-34. [PMID: 26906760 DOI: 10.1016/j.neubiorev.2016.02.014] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/14/2016] [Accepted: 02/18/2016] [Indexed: 12/28/2022]
Abstract
The consumption of alcohol during gestation is detrimental to the developing central nervous system (CNS). The severity of structural and functional brain alterations associated with alcohol intake depends on many factors including the timing and duration of alcohol consumption. The hippocampal formation, a brain region implicated in learning and memory, is highly susceptible to the effects of developmental alcohol exposure. Some of the observed effects of alcohol on learning and memory may be due to changes at the synaptic level, as this teratogen has been repeatedly shown to interfere with hippocampal synaptic plasticity. At the molecular level alcohol interferes with receptor proteins and can disrupt hormones that are important for neuronal signaling and synaptic plasticity. In this review we examine the consequences of prenatal and early postnatal alcohol exposure on hippocampal synaptic plasticity and highlight the numerous factors that can modulate the effects of alcohol. We also discuss some potential mechanisms responsible for these changes as well as emerging therapeutic avenues that are beginning to be explored.
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50
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Lerdchai K, Kitsongsermthon J, Ratanavaraporn J, Kanokpanont S, Damrongsakkul S. Thai Silk Fibroin/Gelatin Sponges for the Dual Controlled Release of Curcumin and Docosahexaenoic Acid for Anticancer Treatment. J Pharm Sci 2016; 105:221-30. [PMID: 26579620 DOI: 10.1002/jps.24701] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/04/2015] [Accepted: 09/30/2015] [Indexed: 12/15/2022]
Abstract
In this study, curcumin and/or docosahexaenoic acid (DHA) were encapsulated in Thai silk fibroin/gelatin (SF/G) sponges, prepared at different blending ratios, aimed to be applied as a controlled release system for localized cancer therapy. The SF/G sponges were fabricated by freeze-drying and glutaraldehyde cross-linking techniques. Physicochemical properties of the SF/G sponges were characterized. Then, curcumin and/or DHA were loaded in the sponges by physical adsorption. The encapsulation efficiency and the in vitro release of curcumin and/or DHA from the sponges were evaluated. SF/G sponges could encapsulate curcumin and/or DHA at high encapsulation efficiency. The highly cross-linked and slowly degrading SF/G (50/50) sponge released curcumin and/or DHA at the slowest rate. The in vitro cytotoxicity of the sponges against noncancer cells (L929 mouse fibroblast) and anticancer of curcumin and/or DHA released from the sponges against cervical cancer cells (CaSki) were tested. All sponges were not toxic to L929 mouse fibroblast. The mixed curcumin–DHA at the ratio of 1:4 had the highest inhibiting effect on the growth of CaSki, comparing with the release of curcumin or DHA alone. SF/G sponges could be a potential carrier for dual release of curcumin and DHA for anticancer effect.
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