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Sigurjónsson S, Haraldsson GG. Asymmetric Synthesis of Methoxylated Ether Lipids: Total Synthesis of Polyunsaturated C18:3 Omega-3 and Omega-6 MEL Triene Derivatives. Molecules 2023; 29:223. [PMID: 38202806 PMCID: PMC10780507 DOI: 10.3390/molecules29010223] [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] [Received: 12/11/2023] [Revised: 12/24/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
The asymmetric synthesis of polyunsaturated triene C18:3 n-3 and C18:3 n-6 methoxylated ether lipids (MEL) of the 1-O-alkyl-sn-glycerol type is described as possible structural candidates for a triene C18:3 MEL of an unknown identity found in a mixture of shark and dogfish liver oil. Their C18:3 hydrocarbon chains constitute an all-cis methylene skipped n-3 or n-6 triene framework, along with a methoxyl group at the 2'-position and R-configuration of the resulting stereogenic center. The methoxylated polyenes are attached by an ether linkage to the pro-S hydroxymethyl group of the glycerol backbone. The syntheses were based on the polyacetylene approach that involves a semi-hydrogenation of the resulting triynes. Both syntheses were started from our previously described enantio- and diastereomerically pure isopropylidene-protected glyceryl glycidyl ether, a double-C3 building block that was designed as a head group synthon for the synthesis of various types of MELs.
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Affiliation(s)
| | - Gudmundur G. Haraldsson
- Chemistry Department, Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland;
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2
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Chaves-Filho AM, Braniff O, Angelova A, Deng Y, Tremblay MÈ. Chronic inflammation, neuroglial dysfunction, and plasmalogen deficiency as a new pathobiological hypothesis addressing the overlap between post-COVID-19 symptoms and myalgic encephalomyelitis/chronic fatigue syndrome. Brain Res Bull 2023; 201:110702. [PMID: 37423295 DOI: 10.1016/j.brainresbull.2023.110702] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/13/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
After five waves of coronavirus disease 2019 (COVID-19) outbreaks, it has been recognized that a significant portion of the affected individuals developed long-term debilitating symptoms marked by chronic fatigue, cognitive difficulties ("brain fog"), post-exertional malaise, and autonomic dysfunction. The onset, progression, and clinical presentation of this condition, generically named post-COVID-19 syndrome, overlap significantly with another enigmatic condition, referred to as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Several pathobiological mechanisms have been proposed for ME/CFS, including redox imbalance, systemic and central nervous system inflammation, and mitochondrial dysfunction. Chronic inflammation and glial pathological reactivity are common hallmarks of several neurodegenerative and neuropsychiatric disorders and have been consistently associated with reduced central and peripheral levels of plasmalogens, one of the major phospholipid components of cell membranes with several homeostatic functions. Of great interest, recent evidence revealed a significant reduction of plasmalogen contents, biosynthesis, and metabolism in ME/CFS and acute COVID-19, with a strong association to symptom severity and other relevant clinical outcomes. These bioactive lipids have increasingly attracted attention due to their reduced levels representing a common pathophysiological manifestation between several disorders associated with aging and chronic inflammation. However, alterations in plasmalogen levels or their lipidic metabolism have not yet been examined in individuals suffering from post-COVID-19 symptoms. Here, we proposed a pathobiological model for post-COVID-19 and ME/CFS based on their common inflammation and dysfunctional glial reactivity, and highlighted the emerging implications of plasmalogen deficiency in the underlying mechanisms. Along with the promising outcomes of plasmalogen replacement therapy (PRT) for various neurodegenerative/neuropsychiatric disorders, we sought to propose PRT as a simple, effective, and safe strategy for the potential relief of the debilitating symptoms associated with ME/CFS and post-COVID-19 syndrome.
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Affiliation(s)
| | - Olivia Braniff
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Angelina Angelova
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, F-91400 Orsay, France
| | - Yuru Deng
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China.
| | - Marie-Ève Tremblay
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada; Department of Molecular Medicine, Université Laval, Québec City, Québec, Canada; Neurology and Neurosurgery Department, McGill University, Montréal, Québec, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Advanced Materials and Related Technology (CAMTEC) and Institute on Aging and Lifelong Health (IALH), University of Victoria, Victoria, British Columbia, Canada.
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3
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Denisenko Y, Novgorodtseva T, Antonyuk M, Yurenko A, Gvozdenko T, Kasyanov S, Ermolenko E, Sultanov R. 1- O-alkyl-glycerols from Squid Berryteuthis magister Reduce Inflammation and Modify Fatty Acid and Plasmalogen Metabolism in Asthma Associated with Obesity. Mar Drugs 2023; 21:351. [PMID: 37367676 DOI: 10.3390/md21060351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023] Open
Abstract
Asthma associated with obesity is considered the most severe phenotype and can be challenging to manage with standard medications. Marine-derived 1-O-alkyl-glycerols (AGs), as precursors for plasmalogen synthesis, have high biological activity, making them a promising substance for pharmacology. This study aimed to investigate the effect of AGs from squid Berryteuthis magister on lung function, fatty acid and plasmalogen levels, and cytokine and adipokine production in obese patients with asthma. The investigational trial included 19 patients with mild asthma associated with obesity who received 0.4 g of AGs daily for three months in addition to their standard treatment. The effects of AGs were evaluated at one and three months of treatment. The results of the study demonstrated that intake of AGs increased the FEV1 and FEV1/VC ratios, and significantly decreased the ACQ score in 17 of the 19 patients after three months of treatment. The intake of AGs increased concentration of plasmalogen and n-3 PUFA in plasma, and modified leptin/adiponectin production by adipose tissue. The supplementation of AGs decreased the plasma levels of inflammatory cytokines (TNF-α, IL-4, and IL-17a), and oxylipins (TXB2 and LTB4), suggesting an anti-inflammatory property of AGs. In conclusion, 1-O-alkyl-glycerols could be a promising dietary supplement for improving pulmonary function and reducing inflammation in obese asthma patients, and a natural source for plasmalogen synthesis. The study highlighted that the beneficial effects of AG consumption can be observed after one month of treatment, with gradual improvement after three months of supplementation.
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Affiliation(s)
- Yulia Denisenko
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration, Institute of Medical Climatology and Rehabilitative Treatment, 690105 Vladivostok, Russia
| | - Tatyana Novgorodtseva
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration, Institute of Medical Climatology and Rehabilitative Treatment, 690105 Vladivostok, Russia
| | - Marina Antonyuk
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration, Institute of Medical Climatology and Rehabilitative Treatment, 690105 Vladivostok, Russia
| | - Alla Yurenko
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration, Institute of Medical Climatology and Rehabilitative Treatment, 690105 Vladivostok, Russia
| | - Tatyana Gvozdenko
- Vladivostok Branch of Far Eastern Scientific Center of Physiology and Pathology of Respiration, Institute of Medical Climatology and Rehabilitative Treatment, 690105 Vladivostok, Russia
| | - Sergey Kasyanov
- A.V. Zhirmunsky National Scientific Center of Marine Biology (Far Eastern Branch), Russian Academy of Sciences, 17 Palchevskogo Str., 690041 Vladivostok, Russia
| | - Ekaterina Ermolenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology (Far Eastern Branch), Russian Academy of Sciences, 17 Palchevskogo Str., 690041 Vladivostok, Russia
| | - Ruslan Sultanov
- A.V. Zhirmunsky National Scientific Center of Marine Biology (Far Eastern Branch), Russian Academy of Sciences, 17 Palchevskogo Str., 690041 Vladivostok, Russia
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Sigurjónsson S, Lúthersson E, Albertsdóttir AD, Rögnvaldsdóttir EK, Haraldsson GG. Asymmetric synthesis of methoxylated ether lipids: Total synthesis of two monounsaturated C18:1 and a saturated C18:0 methoxylated ether lipid derivatives. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Alkyl Glycerol Ethers as Adaptogens. Mar Drugs 2022; 21:md21010004. [PMID: 36662177 PMCID: PMC9862039 DOI: 10.3390/md21010004] [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: 10/10/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022] Open
Abstract
Τhis mini-review summarizes the hematopoietic and immunostimulating properties of alkyl glycerol ethers (AGs) reported earlier in the literature available to us. The role of AGs in the nervous system and aging of the body are also briefly described. We made an attempt to consider the data in terms of adaptation. The hematopoietic, immunostimulating and antioxidant properties of AGs in a variety of experimental situations, including stress, as well as the protective action of AGs against some adaptation diseases, allow us to consider them as substances that prevent some negative effects of stress and promote adaptation. The new approach to AGs as adaptogens seems promising and opens good opportunities for their new application.
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Khotimchenko YS, Silachev DN, Katanaev VL. Marine Natural Products from the Russian Pacific as Sources of Drugs for Neurodegenerative Diseases. Mar Drugs 2022; 20:708. [PMID: 36421986 PMCID: PMC9697637 DOI: 10.3390/md20110708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 09/05/2023] Open
Abstract
Neurodegenerative diseases are growing to become one of humanity's biggest health problems, given the number of individuals affected by them. They cause enough mortalities and severe economic impact to rival cancers and infections. With the current diversity of pathophysiological mechanisms involved in neurodegenerative diseases, on the one hand, and scarcity of efficient prevention and treatment strategies, on the other, all possible sources for novel drug discovery must be employed. Marine pharmacology represents a relatively uncharted territory to seek promising compounds, despite the enormous chemodiversity it offers. The current work discusses one vast marine region-the Northwestern or Russian Pacific-as the treasure chest for marine-based drug discovery targeting neurodegenerative diseases. We overview the natural products of neurological properties already discovered from its waters and survey the existing molecular and cellular targets for pharmacological modulation of the disease. We further provide a general assessment of the drug discovery potential of the Russian Pacific in case of its systematic development to tackle neurodegenerative diseases.
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Affiliation(s)
- Yuri S. Khotimchenko
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, 690950 Vladivostok, Russia
- A.V. Zhirmunsky National Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690950 Vladivostok, Russia
| | - Denis N. Silachev
- Department of Functional Biochemistry of Biopolymers, A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Vladimir L. Katanaev
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, 690950 Vladivostok, Russia
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland
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Sigurjónsson S, Lúthersson E, Magnússon CD, Gudmundsson HG, Das E, Haraldsson GG. Asymmetric Synthesis of Methoxylated Ether Lipids: Total Synthesis of n-3 Polyunsaturated Docosahexaenoic Acid-Like Methoxylated Ether Lipid. J Org Chem 2022; 87:14623-14635. [PMID: 36279500 DOI: 10.1021/acs.joc.2c01991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The first total synthesis of a docosahexaenoic acid (DHA)-like methoxylated ether lipid (MEL) is reported. This compound constitutes an all-cis methylene skipped hexaene framework identical to that present in DHA, the well-known omega-3 polyunsaturated fatty acid. The polyene C22 hydrocarbon chain, bearing a methoxyl group in the 2-position and R-configuration at the resulting chiral center, is attached by an ether linkage to the pro-S hydroxymethyl group (sn-1 position) of a glycerol backbone. The asymmetric synthesis is highly convergent and based on the polyacetylene approach involving iterative copper-promoted coupling reactions of propargyl bromides with terminal alkynes and semihydrogenation of the resulting hexayne. Starting from enantiopure R-solketal and racemic epichlorohydrin, the targeted MEL was accomplished in an 8.2% yield over eight steps (longest linear sequence) involving an enantio- and diastereopure glyceryl glycidyl ether key C6-building blocks from which the polyynes were constructed.
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Affiliation(s)
| | - Einar Lúthersson
- Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
| | - Carlos D Magnússon
- Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland.,Department of Science and Mathematics, Volda University College, P.O. Box 500, 6101 Volda, Norway
| | | | - Erika Das
- Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
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Wang T, Huynh K, Giles C, Mellett NA, Duong T, Nguyen A, Lim WLF, Smith AAT, Olshansky G, Cadby G, Hung J, Hui J, Beilby J, Watts GF, Chatterjee P, Martins I, Laws SM, Bush AI, Rowe CC, Villemagne VL, Ames D, Masters CL, Taddei K, Doré V, Fripp J, Arnold M, Kastenmüller G, Nho K, Saykin AJ, Baillie R, Han X, Martins RN, Moses EK, Kaddurah‐Daouk R, Meikle PJ. APOE ε2 resilience for Alzheimer's disease is mediated by plasma lipid species: Analysis of three independent cohort studies. Alzheimers Dement 2022; 18:2151-2166. [PMID: 35077012 PMCID: PMC9787288 DOI: 10.1002/alz.12538] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/19/2021] [Accepted: 10/25/2021] [Indexed: 01/31/2023]
Abstract
INTRODUCTION The apolipoprotein E (APOE) genotype is the strongest genetic risk factor for late-onset Alzheimer's disease. However, its effect on lipid metabolic pathways, and their mediating effect on disease risk, is poorly understood. METHODS We performed lipidomic analysis on three independent cohorts (the Australian Imaging, Biomarkers and Lifestyle [AIBL] flagship study, n = 1087; the Alzheimer's Disease Neuroimaging Initiative [ADNI] 1 study, n = 819; and the Busselton Health Study [BHS], n = 4384), and we defined associations between APOE ε2 and ε4 and 569 plasma/serum lipid species. Mediation analysis defined the proportion of the treatment effect of the APOE genotype mediated by plasma/serum lipid species. RESULTS A total of 237 and 104 lipid species were associated with APOE ε2 and ε4, respectively. Of these 68 (ε2) and 24 (ε4) were associated with prevalent Alzheimer's disease. Individual lipid species or lipidomic models of APOE genotypes mediated up to 30% and 10% of APOE ε2 and ε4 treatment effect, respectively. DISCUSSION Plasma lipid species mediate the treatment effect of APOE genotypes on Alzheimer's disease and as such represent a potential therapeutic target.
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Sigurjónsson S, Lúthersson E, Gudmundsson HG, Haraldsdóttir H, Kristinsdóttir L, Haraldsson GG. Asymmetric Synthesis of Methoxylated Ether Lipids: A Glyceryl Glycidyl Ether Key Building Block Design, Preparation, and Synthetic Application. J Org Chem 2022; 87:12306-12314. [PMID: 36037531 DOI: 10.1021/acs.joc.2c01515] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The report describes the preparation and use of a double-C3 building block intended as a head group synthon in the synthesis of saturated, mono-, and polyunsaturated 1-O-alkyl-sn-glycerol type methoxylated ether lipids (MELs). The resulting head piece, an enantiopure isopropylidene-protected glyceryl glycidyl ether diastereomer, was accomplished in 49% yield (max 50%) from a 1:1 diastereomeric mixture obtained from R-solketal and racemic epichlorohydrin after treatment with the Jacobsen (S,S)-Co(III)salen catalyst for the hydrolytic kinetic resolution of terminal epoxides. The diol hydrolytic product obtained in 47% yield from the unwanted diastereomer was reconverted into epoxide with an inversion of configuration in a three-step operation involving a highly regioselective lipase. This enabled the recovery of a substantial amount of diastereopure material after a subsequent treatment with the Jacobsen catalyst to furnish the oxirane head piece in altogether 72% yield of higher than 99% diastereomeric purity. A modified synthesis of a monounsaturated 16:1 MEL confirmed the correct stereochemistry and excellent enantiopurity of the head piece and resulted in a dramatic improvement in yields, efficiency, and economy of the synthesis.
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Affiliation(s)
- Svanur Sigurjónsson
- Science Institute, Chemistry Department, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
| | - Einar Lúthersson
- Science Institute, Chemistry Department, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
| | - Haraldur G Gudmundsson
- Science Institute, Chemistry Department, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
| | - Hafdís Haraldsdóttir
- Science Institute, Chemistry Department, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
| | - Lilja Kristinsdóttir
- Science Institute, Chemistry Department, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
| | - Gudmundur G Haraldsson
- Science Institute, Chemistry Department, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland
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Momha R, Le Bot D, Mosset P, Legrand AB. Anti-Angiogenic and Cytotoxicity Effects of Selachyl Alcohol Analogues. Anticancer Agents Med Chem 2022; 22:1913-1920. [PMID: 34636316 DOI: 10.2174/1871520621666211012090411] [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: 03/09/2021] [Revised: 08/18/2021] [Accepted: 08/26/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND The active ingredients in the shark liver oil (SLO) mixture were found to be a group of etherlinked glycerol known as alkylglycerols (AKGs). During the last century, initial clinical use of the SLO mixture was for treating leukemias and later preventing radiation sickness from cancer x-ray therapy. Selachyl alcohol is one of the most abundant AKGs in the SLO mixture and it displayed strong activity in reducing lung metastasis number on a model of grafted tumor in mice (Lewis lung carcinoma cells). OBJECTIVES In this study, selachyl alcohol analogue containing methoxyl (7), gem-difluorinated (8), azide (9) and hydroxyl (10) group at the 12 position in the alkyl chain were synthesized and compared regarding their cytotoxicity and anti-migratory effects on Human Umbilical Vein Endothelial Cell line. METHODS AKGs 7-10 were synthesized according to the literature procedure. The cytotoxicity of the studied AKGs was evaluated by the MTT test and Human Umbilical Vein Endothelial Cell line (HUVEC) was used as an in vitro model to evaluate their anti-migratory effects. RESULTS The four AKGs have substantially the same toxicity threshold (≥ 12 μM), whereas they have an anti-migratory activity significantly different on endothelial cells. AKGs 9 and 10 significantly reduce the chemotactic migration induced by VEGF, but analogue (10) containing the hydroxyl group at the 12 position in the alkyl chain was the most potent anti-VEGF inhibitor. CONCLUSION We presented here a series of four synthetic selachyl alcohol analogues, among which AKGs 9 and 10 showed the ability to inhibit endothelial cell migration. The relationship structures and anti-VEGF effects of these analogues were also evaluated and discussed. Unnatural synthesized AKGs could be explored as one new source of anticancer agents.
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Affiliation(s)
- René Momha
- Hauts de France, AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, Amiens 80037, France.,Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, CNRS, UMR 6226, 11 allée de Beaulieu, Rennes 35708, France
| | - Damien Le Bot
- Laboratoire de Pharmacologie Moléculaire, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Rennes, 2 Avenue du Pr Léon Bernard, Rennes 35043, France
| | - Paul Mosset
- Ile et Vilaine, Université de Rennes, CNRS, ISCR, UMR 6226, Avenue du Général Leclerc, Rennes F-35000, France
| | - Alain Bernard Legrand
- Laboratoire de Pharmacologie Moléculaire, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Rennes, 2 Avenue du Pr Léon Bernard, Rennes 35043, France
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Jia G, He B, Li Y, Liu L, Zhao J, Lv B. Thermodynamic Equilibrium Analysis on the Dehydration of Glycerol with Monohydric Alcohols to Alkyl Glyceryl Ethers. AIChE J 2022. [DOI: 10.1002/aic.17610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guangxin Jia
- School of Chemical Engineering and Technology North University of China Taiyuan China
| | - Beibei He
- School of Chemical Engineering and Technology North University of China Taiyuan China
| | - Yu Li
- School of Chemical Engineering and Technology North University of China Taiyuan China
| | - Laishuan Liu
- School of Chemical Engineering and Technology North University of China Taiyuan China
| | - Jiantao Zhao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan China
| | - Baoliang Lv
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan China
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The Impact of Short-Term Shark Liver Oil Supplementation on the Fatty Acid Composition of Erythrocyte Membranes. Nutrients 2021; 13:nu13103329. [PMID: 34684329 PMCID: PMC8540316 DOI: 10.3390/nu13103329] [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: 07/30/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 02/06/2023] Open
Abstract
Fatty acid (FA) balance is strictly related to human health. The composition of fatty acids in lipid membranes seems to be influenced by diet. Shark liver oil (SLO) supplementation has been widely used recently in the prevention and treatment of human diseases. We analyzed the impact of short-term SLO supplementation on certain biochemical parameters and erythrocyte FA composition in a group of young healthy women. Our results showed that 6 weeks of SLO supplementation led to a significant decrease in C-reactive protein levels in sera and intracellular cholesterol levels in peripheral blood mononuclear cells. SLO supplementation caused a significant increase in the content of the polyunsaturated omega-3 FAs: docosahexaenoic acid, docosapentaenoic acid and α-linolenic acid. In the group of omega-6 FAs, we observed a significant elevation of arachidonic and dihomo-gamma-linoleic acid content. Due to these alterations, the omega-3 index increased significantly from 3.6% (before) to 4.2% (after supplementation). We also observed the impact of SLO supplementation on the membrane fluidity index. The ratio between saturated and unsaturated FAs decreased significantly from 13.1 to 9.9. In conclusion, our results show that even short-term SLO supplementation can improve human erythrocyte fatty acid composition and other parameters that may have health-promoting consequences.
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Lipidomic Signatures of Changes in Adiposity: A Large Prospective Study of 5849 Adults from the Australian Diabetes, Obesity and Lifestyle Study. Metabolites 2021; 11:metabo11090646. [PMID: 34564462 PMCID: PMC8471381 DOI: 10.3390/metabo11090646] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/19/2021] [Accepted: 09/19/2021] [Indexed: 12/28/2022] Open
Abstract
Lipid metabolism is tightly linked to adiposity. Comprehensive lipidomic profiling offers new insights into the dysregulation of lipid metabolism in relation to weight gain. Here, we investigated the relationship of the human plasma lipidome and changes in waist circumference (WC) and body mass index (BMI). Adults (2653 men and 3196 women), 25–95 years old who attended the baseline survey of the Australian Diabetes, Obesity and Lifestyle Study (AusDiab) and the 5-year follow-up were enrolled. A targeted lipidomic approach was used to quantify 706 distinct molecular lipid species in the plasma samples. Multiple linear regression models were used to examine the relationship between the baseline lipidomic profile and changes in WC and BMI. Metabolic scores for change in WC were generated using a ridge regression model. Alkyl-diacylglycerol such as TG(O-50:2) [NL-18:1] displayed the strongest association with change in WC (β-coefficient = 0.125 cm increment per SD increment in baseline lipid level, p = 2.78 × 10−11. Many lipid species containing linoleate (18:2) fatty acids were negatively associated with both WC and BMI gain. Compared to traditional models, multivariate models containing lipid species identify individuals at a greater risk of gaining WC: top quintile relative to bottom quintile (odds ratio, 95% CI = 5.4, 3.8–6.6 for women and 2.3, 1.7–3.0 for men). Our findings define metabolic profiles that characterize individuals at risk of weight gain or WC increase and provide important insight into the biological role of lipids in obesity.
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Paul S, Smith AAT, Culham K, Gunawan KA, Weir JM, Cinel MA, Jayawardana KS, Mellett NA, Lee MKS, Murphy AJ, Lancaster GI, Nestel PJ, Kingwell BA, Meikle PJ. Shark liver oil supplementation enriches endogenous plasmalogens and reduces markers of dyslipidemia and inflammation. J Lipid Res 2021; 62:100092. [PMID: 34146594 PMCID: PMC8281607 DOI: 10.1016/j.jlr.2021.100092] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/27/2021] [Accepted: 06/06/2021] [Indexed: 01/09/2023] Open
Abstract
Plasmalogens are membrane glycerophospholipids with diverse biological functions. Reduced plasmalogen levels have been observed in metabolic diseases; hence, increasing their levels might be beneficial in ameliorating these conditions. Shark liver oil (SLO) is a rich source of alkylglycerols that can be metabolized into plasmalogens. This study was designed to evaluate the impact of SLO supplementation on endogenous plasmalogen levels in individuals with features of metabolic disease. In this randomized, double-blind, placebo-controlled cross-over study, the participants (10 overweight or obese males) received 4-g Alkyrol® (purified SLO) or placebo (methylcellulose) per day for 3 weeks followed by a 3-week washout phase and were then crossed over to 3 weeks of the alternate placebo/Alkyrol® treatment. SLO supplementation led to significant changes in plasma and circulatory white blood cell lipidomes, notably increased levels of plasmalogens and other ether lipids. In addition, SLO supplementation significantly decreased the plasma levels of total free cholesterol, triglycerides, and C-reactive protein. These findings suggest that SLO supplementation can enrich plasma and cellular plasmalogens and this enrichment may provide protection against obesity-related dyslipidemia and inflammation.
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Affiliation(s)
- Sudip Paul
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
| | - Adam Alexander T Smith
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Kevin Culham
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Kevin A Gunawan
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Jacqueline M Weir
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Michelle A Cinel
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Kaushala S Jayawardana
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Natalie A Mellett
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Man K S Lee
- Haematopoiesis and Leukocyte Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Andrew J Murphy
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia; Haematopoiesis and Leukocyte Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Graeme I Lancaster
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia; Haematopoiesis and Leukocyte Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Paul J Nestel
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Bronwyn A Kingwell
- Metabolic and Vascular Physiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Peter J Meikle
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.
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15
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Oku N, Hasada A, Kimura K, Honoki H, Katsuta R, Yajima A, Nukada T, Ishigami K, Igarashi Y. Sulfoquinovosylglyceryl ether, a new group of ether lipids from lake ball-forming green alga Aegagropilopsis moravica (family Pithophoraceae). Chem Asian J 2021; 16:1493-1498. [PMID: 33871157 DOI: 10.1002/asia.202100278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/16/2021] [Indexed: 12/23/2022]
Abstract
Ether lipids are a minor group of glycerolipids but widespread in nature, playing a vital function as membrane lipids, signalling molecules, or buoyant material. We have discovered sulfoquinovosylchimyl alcohol (1), a sulfonate-substituted glyceroglycolipid, from a lake ball-forming green alga Aegagropilopsis moravica (family Pithophoraceae), with the guidance of antimicrobial activity. The structure of 1, including absolute configurations of all sterogenic centers, was established by extensive NMR analysis, chemical degradation studies, and finally by total synthesis. Lipid 1 is an ether variant of a lyso-form of sulfoquinovosyldiacylglycerol, a chloroplast-specific membrane lipid, and thus represents a new lipid class, sulfoquinovosylglyceryl ether. A high occurrence of mobile life form in the family Pithophoraceae and a unique behaviour of chloroplasts reported in closely related Aegagropila linnaei, the famous lake-ball alga, implies a possible role of lipid 1 or its acyl derivatives in ecological adaptation to dysphotic niches.
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Affiliation(s)
- Naoya Oku
- Research Center for Biotechnology and Pharmaceutical Engineering and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Atsumi Hasada
- Research Center for Biotechnology and Pharmaceutical Engineering and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Kenji Kimura
- Graduate School of Agriculture, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Hideharu Honoki
- Toyama Science Museum, 1-8-31 Nishinakano, Toyama, 939-8034, Japan
| | - Ryo Katsuta
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Arata Yajima
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Tomoo Nukada
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Ken Ishigami
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Yasuhiro Igarashi
- Research Center for Biotechnology and Pharmaceutical Engineering and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
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16
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Lakshmi S, Varija Raghu S, Elumalai P, Sivan S. Alkoxy glycerol enhanced activity of Oxyresveratrol in Alzheimer's disease by rescuing Tau protein. Neurosci Lett 2021; 759:135981. [PMID: 34023407 DOI: 10.1016/j.neulet.2021.135981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 01/19/2021] [Accepted: 05/18/2021] [Indexed: 11/17/2022]
Abstract
Alzheimer's disease perpetually demands enormous research on the development of effective treatment strategies. The present study aims to define the role of Oxyresveratrol (OXY) alone and in combination with Alkoxy glycerols (AKG) to reduce Tau protein level and improve the climbing behaviour of Drosophila fly models expressed with human-Tau protein. Oxyresveratrol, a polyphenolic stilbene, possesses a wide range of biological activities like antioxidant, anti-inflammatory, and neuroprotective effects. Nevertheless, chemical instability and low solubility of OXY in aqueous solutions reduce its bioavailability and hinder it from exerting neuroprotective activities. An inclusion complex of OXY with β- cyclodextrin (CD) (OXY-CD complex) was employed in the study for increased dissolution rate and oral availability of OXY. Fish oils and their derivatives have a plethora of applications in in vivo biological activities. Herein, we also remark on the role of AKG in reducing Tau protein level in flies by enhancing OXY-CD activity. Dietary supplementation of OXY-CD together with AKG improved the learning and memory abilities during the climbing assay in Tau flies. The study highlights OXY-CD and AKG as neuroprotective agents and put forward a plausible approach towards the increased permeability of pharmacological agents across the blood-brain barrier (BBB) for the central nervous system elicited by AKG.
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Affiliation(s)
- Sreeja Lakshmi
- School of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, Kerala, India
| | - Shamprasad Varija Raghu
- Neurogenetics Lab, Department of Applied Zoology, Mangalore University, Mangalagangotri, Mangaluru, Karnataka, India
| | - Preetham Elumalai
- Department of Fish Processing Technology, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, Kerala, India.
| | - Sureshkumar Sivan
- School of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, Kerala, India.
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17
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Chaverra Daza KE, Silva Gómez E, Moreno Murillo BD, Mayorga Wandurraga H. Natural and Enantiopure Alkylglycerols as Antibiofilms Against Clinical Bacterial Isolates and Quorum Sensing Inhibitors of Chromobacterium violaceum ATCC 12472. Antibiotics (Basel) 2021; 10:antibiotics10040430. [PMID: 33924401 PMCID: PMC8070063 DOI: 10.3390/antibiotics10040430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/28/2021] [Accepted: 04/02/2021] [Indexed: 12/25/2022] Open
Abstract
Resistance mechanisms occur in almost all clinical bacterial isolates and represent one of the most worrisome health problems worldwide. Bacteria can form biofilms and communicate through quorum sensing (QS), which allow them to develop resistance against conventional antibiotics. Thus, new therapeutic candidates are sought. We focus on alkylglycerols (AKGs) because of their recently discovered quorum sensing inhibition (QSI) ability and antibiofilm potential. Fifteen natural enantiopure AKGs were tested to determine their effect on the biofilm formation of other clinical bacterial isolates, two reference strains and their QSI was determined using Chromobacterium violaceum ATCC 12472. The highest biofilm inhibition rates (%) and minimum QS inhibitory concentration were determined by a microtiter plate assay and ciprofloxacin was used as the standard antibiotic. At subinhibitory concentrations, each AKG reduced biofilm formation in a concentration-dependent manner against seven bacterial isolates, with values up to 97.2%. Each AKG displayed QSI at different levels of ability without affecting the growth of C. violaceum. AKG (2S)-3-O-(cis-13’-docosenyl)-1,2-propanediol was the best QS inhibitor (20 μM), while (2S)-3-O-(cis-9’-hexadecenyl)-1,2-propanediol was the least effective (795 μM). The results showed for the first time the QSI activity of this natural AKG series and suggest that AKGs could be promising candidates for further studies on preventing antimicrobial resistance.
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Affiliation(s)
- Klauss E. Chaverra Daza
- Posgrado Interfacultades de Microbiología, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-03, Edif. 224, Bogotá 11011, Colombia;
- Grupo de Productos Naturales Vegetales Bioactivos y Química Ecológica, Laboratorio de Asesorías e Investigaciones en Microbiología, Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-03, Edif. 450, Bogotá 11011, Colombia;
| | - Edelberto Silva Gómez
- Grupo de Productos Naturales Vegetales Bioactivos y Química Ecológica, Laboratorio de Asesorías e Investigaciones en Microbiología, Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-03, Edif. 450, Bogotá 11011, Colombia;
| | - Bárbara D. Moreno Murillo
- Grupo de Productos Naturales Vegetales Bioactivos y Química Ecológica, Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-03, Edif. 451, Bogotá 11011, Colombia;
| | - Humberto Mayorga Wandurraga
- Grupo de Productos Naturales Vegetales Bioactivos y Química Ecológica, Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-03, Edif. 451, Bogotá 11011, Colombia;
- Correspondence: ; Tel.: +57-1-316-5000 (ext. 14440)
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18
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Samimi N, Sepehrimanesh M, Koohi-Hosseinabadi O, Homayounfar R, Mokhtari M, Farjam M. The Therapeutic Effect of Shark Liver Oil in a Rat Model of Acetic Acid-Induced Ulcerative Colitis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2020; 2020:2419230. [PMID: 33149751 PMCID: PMC7603576 DOI: 10.1155/2020/2419230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/01/2020] [Accepted: 10/06/2020] [Indexed: 12/22/2022]
Abstract
Ulcerative colitis (UC) is one of the most well-known types of inflammatory bowel disease that manifests as recurrent inflammation of rectum and colon. The goal of this study is to evaluate the protective effects of shark liver oil (SLO) on acetic acid-induced ulcerative colitis in rats. Eighty induced UC rats were randomly divided into ten equal groups and received the following treatments for seven days: 1 ml of normal saline rectally, 1 ml of gel base (carboxymethyl cellulose) rectally, 10 mg/kg of Asacol rectally, 10 mg/kg of mesalazine orally, 5% gel form of SLO rectally, 10% gel form of SLO rectally, 200 mg of SLO orally, and 400 mg of SLO orally. We examined the oxidative stress indices, histopathological features, and body weight changes, as well as the function of the liver and kidneys at the end of treatment. Administration of 10% rectal and 400 mg oral SLO resulted in a significant weight gain. Also, glutathione peroxidase activity was significantly higher in 5% and 10% SLO-treated groups, and elevated superoxide dismutase activity in rats that received 5% SLO was observed compared to negative control and Asacol groups. While no significant changes were observed in most of the kidney and liver function markers, higher levels of aspartate aminotransferase were detected in the group that received 400 mg SLO orally compared to negative control and Asacol groups. Many histopathological signs of improvement were observed in mesalazine, Asacol, and SLO groups. There were no significant changes detected in the mean rank among different groups. Our data indicate that SLO supplementation could improve the amelioration of acetic acid-induced UC in rats due to its antioxidant effects.
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Affiliation(s)
- Nastaran Samimi
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
| | - Masood Sepehrimanesh
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Reza Homayounfar
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Maral Mokhtari
- Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mojtaba Farjam
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
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19
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Pemha R, Njock GBB, Pegnyemb DE, Mosset P. First Total Synthesis of Two 1‐ O‐Alkylglycerols Based Alkyne Analogues of Bioactive Natural Products. ChemistrySelect 2020. [DOI: 10.1002/slct.202001328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- René Pemha
- Université de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226 11 allée de Beaulieu 35708 Rennes France
- AGIR, EA 4294, UFR of PharmacyJules Verne University of Picardie 80037 Amiens France
| | - Gaétan Bayiha Ba Njock
- Department of ChemistryFaculty of Sciences, University of Maroua P.O. Box 814 Maroua Cameroun
| | | | - Paul Mosset
- Université de Rennes, CNRS, ISCR, UMR 6226Avenue du Général Leclerc F-35000 Rennes France
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20
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Pemha R, Pegnyemb DE, Mosset P. Synthesis of halogenated 1- O-alkylglycerols from ricinoleic acid derivatives. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1750034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- René Pemha
- Université de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, Rennes, France
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, Amiens, France
| | | | - Paul Mosset
- Université de Rennes, CNRS, ISCR, UMR 6226, Rennes, France
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21
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Abstract
The adaptogenic properties of alkylglycerols (AGs) after 1 month's treatment were investigated in a rat model of acute immobilization stress (AIS). The animals receiving AGs 157 mg/kg showed a body weight (BW) decrease in addition to a more pronounced increase in the adrenal glands index under stress conditions. Also, AGs at this dose prevented AIS-induced catalase inhibition. In addition, antiulcerative AG effects were already detected at a dose of 15 mg/kg. The data indicate that AGs promote adrenal gland activation in AIS. At the same time, AGs neutralize some of negative effects of stressful conditions, which include restoration of the oxidation-reduction balance, reduction of gastric mucosal stress lesion formation.LAY SUMMARYThe effect of alkylglycerols, ether lipids from marine organisms, was studied in stressed animals. AGs have antioxidant activity and can be useful in the complex therapy of stomach lesions.
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Affiliation(s)
- Tatiana S Poleschuk
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
- Pacific State Medical University, Vladivostok, Russia
| | - Ruslan M Sultanov
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
| | - Ekaterina V Ermolenko
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
| | - Lidiya V Shulgina
- School of Biomedicine, Far Eastern Federal University (FEFU), Vladivostok, Russia
- Pacific Research Fisheries Center (TINRO-Center), Vladivostok, Russia
| | - Sergey P Kasyanov
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
- School of Biomedicine, Far Eastern Federal University (FEFU), Vladivostok, Russia
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22
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Momha R, Kuete V, Pagès JM, Pegnyemb DE, Mosset P. Synthesis and Biological Evaluation of Four New Ricinoleic Acid-Derived 1- O-alkylglycerols. Mar Drugs 2020; 18:md18020113. [PMID: 32075231 PMCID: PMC7073722 DOI: 10.3390/md18020113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/02/2020] [Accepted: 02/04/2020] [Indexed: 01/11/2023] Open
Abstract
A series of novel substituted 1-O-alkylglycerols (AKGs) containing methoxy (8), gem-difluoro (9), azide (10) and hydroxy (11) group at 12 position in the alkyl chain were synthesized from commercially available ricinoleic acid (12). The structures of these new synthesized AKGs were established by NMR experiments as well as from the HRMS and elementary analysis data. The antimicrobial activities of the studied AKGs 8-11 were evaluated, respectively, and all compounds exhibited antimicrobial activity to different extents alone and also when combined with some commonly used antibiotics (gentamicin, tetracycline, ciprofloxacin and ampicillin). AKG 11 was viewed as a lead compound for this series as it exhibited significantly higher antimicrobial activity than compounds 8-10.
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Affiliation(s)
- René Momha
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie, 80037 Amiens, France
- Correspondence: (R.M.); (P.M.); Tel.: +33-(0)666-752-553 (R.M.); +33-(0)223-237-336 (P.M.)
| | - Victor Kuete
- University of Dschang, Faculty of Science, Department of Biochemistry, P.O. Box 67 Dschang, Cameroon;
- UMR_MD1, U-1261, Aix-Marseille Univ, INSERM, IRBA. Membranes et Cibles Thérapeutiques, Faculté de Pharmacie, 13385 Marseille cedex 05, France;
| | - Jean-Marie Pagès
- UMR_MD1, U-1261, Aix-Marseille Univ, INSERM, IRBA. Membranes et Cibles Thérapeutiques, Faculté de Pharmacie, 13385 Marseille cedex 05, France;
| | | | - Paul Mosset
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiquesde Rennes), UMR 6226, F-35000 Rennes, France
- Correspondence: (R.M.); (P.M.); Tel.: +33-(0)666-752-553 (R.M.); +33-(0)223-237-336 (P.M.)
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23
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Sun Z, Zhang L, Wang Y, Xue C, Li Z, Wang J. Enzymatic Synthesis of Ether Lipids Rich in Docosahexaenoic Acid with Squalene as Reaction Medium. J AM OIL CHEM SOC 2020. [DOI: 10.1002/aocs.12313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhaomin Sun
- College of Food Science and EngineeringOcean University of China Qingdao Shandong Province 266003 China
- Research and Develepment Center, Weihai Boow Foods Co., Ltd Weihai Shandong Province 264205 China
| | - Lingyu Zhang
- College of Food Science and EngineeringOcean University of China Qingdao Shandong Province 266003 China
| | - Yuming Wang
- College of Food Science and EngineeringOcean University of China Qingdao Shandong Province 266003 China
| | - Changhu Xue
- College of Food Science and EngineeringOcean University of China Qingdao Shandong Province 266003 China
| | - Zhaojie Li
- College of Food Science and EngineeringOcean University of China Qingdao Shandong Province 266003 China
| | - Jingfeng Wang
- College of Food Science and EngineeringOcean University of China Qingdao Shandong Province 266003 China
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24
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Nascimento TS, Braga EF, Casaes Gomes GC, Batista WR, Mazzei Albert AL, Capella Lopes RS, Lopes CC. Synthesis of natural 1- O-alkylglycerols: a study on the chemoselective opening of the epoxide ring by onium quaternary salts (N and P) and ionic liquids. RSC Adv 2020; 10:1050-1054. [PMID: 35494454 PMCID: PMC9047497 DOI: 10.1039/c9ra09217j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/16/2019] [Indexed: 11/21/2022] Open
Abstract
A chemoselective route for the synthesis of 1-O-alkylglycerols chimyl (1), batyl (2), and selachyl (3) is reported. These compounds can be naturally isolated from shark liver oil and the skin of animals such as stingrays and chimeras and exhibit potential anti-fouling activity. The synthetic approach developed in this work included two distinct methods of preparation. The first was based on solvent-free reactions catalyzed by onium quaternary salts (N and P) and ionic liquids; the second methodology was based on a series of one-pot reactions.
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Affiliation(s)
- Thiana Santiago Nascimento
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
| | - Esther Faria Braga
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
| | - Giselle Cristina Casaes Gomes
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
| | - William Romão Batista
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
| | - André Luís Mazzei Albert
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
| | - Rosangela Sabbatini Capella Lopes
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
| | - Claudio Cerqueira Lopes
- Laboratório de Síntese e Análise de Produtos Estratégicos-Centro de Tecnologia, Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro Bloco A, S. 508 Rio de Janeiro-RJ CEP 21941-909 Brazil
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25
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Fernández Montoya DJ, Contreras Jordan LA, Moreno-Murillo B, Silva-Gómez E, Mayorga-Wandurraga H. Enantiomeric synthesis of natural alkylglycerols and their antibacterial and antibiofilm activities. Nat Prod Res 2019; 35:2544-2550. [PMID: 31686540 DOI: 10.1080/14786419.2019.1686370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Alkylglycerols (AKGs) are bioactive natural compounds that vary by alkyl chain length and degree of unsaturation, and their absolute configuration is 2S. Three AKGs (5l-5n) were synthesised in enantiomerically pure form, and were characterised for the first time together with 12 other known and naturally occurring AKGs (5a-5k, 5o). Their structures were established using 1H and 13C APT NMR with 2D-NMR, ESI-MS or HRESI-MS and optical rotation data, and they were tested for their antibacterial and antibiofilm activities. AKGs 5a-5m and 5o showed activity against five clinical isolates and P. aeruginosa ATCC 15442, with MIC values in the range of 15-125 µg/mL. In addition, at half of the MIC, most of the AKGs reduced S. aureus biofilm formation in the range of 23%-99% and P. aeruginosa ATCC 15442 biofilm formation in the range of 14%-64%. The antibiofilm activity of the AKGs assessed in this work had not previously been studied.
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Affiliation(s)
- Deicy J Fernández Montoya
- Posgrado Interfacultades de Microbiología, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia.,Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Luis A Contreras Jordan
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Bárbara Moreno-Murillo
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Edelberto Silva-Gómez
- Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
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26
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Tolerability and Safety of a Nutritional Supplement with Potential as Adjuvant in Colorectal Cancer Therapy: A Randomized Trial in Healthy Volunteers. Nutrients 2019; 11:nu11092001. [PMID: 31450563 PMCID: PMC6769991 DOI: 10.3390/nu11092001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/02/2019] [Accepted: 08/21/2019] [Indexed: 12/19/2022] Open
Abstract
Bioactive supplements display relevant therapeutic properties when properly applied according to validated molecular effects. Our previous research efforts established the basis to develop a dietary supplement based on a Rosmarinus officinalis supercritical extract. This was enriched in phenolic diterpenes (RE) with proven properties against signaling pathways involved in colon tumorigenesis, and shark liver oil rich in alkylglycerols (AKG) as a bioactive lipid vehicle to improve RE bioavailability and synergize with the potential therapeutic action of the extract. Herein, we have investigated the tolerability and safety of the supplement and the biological and molecular effects from an immuno-nutritional perspective. Sixty healthy volunteers participated in a six week, double-blind, randomized parallel pilot study with two study arms: RE-AKG capsules (CR) and control capsules (CC). Mean age (±SD) of volunteers was 28.32 (±11.39) and 27.5 (±9.04) for the control and the study groups, respectively. Safety of the CR product consumption was confirmed by analyzing liver profile, vital constants, and oxidation markers (LDLox in blood and isoprostanes and thromboxanes in urine). The following were monitored: (1) the phenotyping of plasmatic leukocytes and the ex vivo response of lipopolysaccharide (LPS)-stimulated peripheral blood mononuclear cells (PBMCs); (2) expression of genes associated with immune-modulation, inflammation, oxidative stress, lipid metabolism, and tumorigenesis; and (3) the correlation of selected genetic variants (SNPs) with the differential responses among individuals. The lack of adverse effects on liver profile and oxidation markers, together with adequate tolerability and safe immunological adaptations, provide high-quality information for the potential use of CR as co-adjuvant of therapeutic strategies against colorectal cancer.
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Paul S, Lancaster GI, Meikle PJ. WITHDRAWN: Plasmalogens: A potential therapeutic target for neurodegenerative and cardiometabolic disease. Prog Lipid Res 2019:100993. [PMID: 31442528 DOI: 10.1016/j.plipres.2019.100993] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/06/2019] [Accepted: 04/07/2019] [Indexed: 01/30/2023]
Affiliation(s)
- Sudip Paul
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC 3800, Australia
| | - Graeme I Lancaster
- Haematopoiesis and Leukocyte Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC 3800, Australia
| | - Peter J Meikle
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC 3800, Australia
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Paul S, Lancaster GI, Meikle PJ. Plasmalogens: A potential therapeutic target for neurodegenerative and cardiometabolic disease. Prog Lipid Res 2019; 74:186-195. [DOI: 10.1016/j.plipres.2019.04.003] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/06/2019] [Accepted: 04/07/2019] [Indexed: 01/23/2023]
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Latyshev NA, Ermakova SP, Ermolenko EV, Imbs AB, Kasyanov SP, Sultanov RM. 1-O-alkylglycerols from the hepatopancreas of the crab Paralithodes camtschaticus, liver of the squid Berryteuthis magister, and liver of the skate Bathyraja parmifera, and their anticancer activity on human melanoma cells. J Food Biochem 2019; 43:e12828. [PMID: 31353521 DOI: 10.1111/jfbc.12828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 02/17/2019] [Accepted: 02/18/2019] [Indexed: 01/22/2023]
Abstract
1-O-alkylglycerols (AKG) are a class of natural ether lipids derived from 1-O-alkyl-2,3-diacyl-sn-glycerols by deacylation. In this study, 1-O-alkylglycerol (AKG) composition was investigated in the hepatopancreas lipids of the crab Paralithodes camtschaticus and the liver lipids of the squid Berryteuthis magister and the skate Bathyraja parmifera. One of the principal AKG in marine organisms was 1-O-hexadecyl-sn-glycerol (AKG 16:0). To assess AKG influence on melanoma, we evaluated the cytotoxicity and antiproliferative actions of natural AKG 16:0 and synthetic 1-O-octyl-sn-glycerol (AKG 8:0) on three human melanoma cell lines SK-Mel-5, SK-Mel-28, and RPMI-7951. Natural AKG 16:0 in concentration up to 20 µM was not toxic to all cell lines. AKG 8:0 showed no toxicity to cells SK-Mel-5 and SK-Mel-28 in concentrations up to 20 µM but had moderate cytotoxicity to RPMI-7951 cells with an IC50 of 13 µM. Both investigated substances inhibited the proliferation, formation, and growth of cell colonies of RPMI-7951. PRACTICAL APPLICATIONS: AKG exhibit a variety of biological activities, including anticancer effects. In this study, the liver lipids of the skate B. parmifera and the hepatopancreas lipids of crab P. camtschaticus were shown to be sources of AKG. Our data showed that AKG can be used to prevent the formation of new colonies of malignant cells in combination therapy against melanoma. The results will be useful for future studies involving marine ether lipids and the examination of their anticancer properties against malignant cells.
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Affiliation(s)
- Nikolay A Latyshev
- National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Svetlana P Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Ekaterina V Ermolenko
- National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Andrey B Imbs
- National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Sergey P Kasyanov
- National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Ruslan M Sultanov
- National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
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Arranz-Martínez P, Corzo-Martínez M, Vázquez L, Torres CF, Marangoni AG. Influence of thermal processing on the phase behavior of a novel acylglyceride-alkylglyceride lipid-based delivery system. Food Funct 2018; 9:4028-4035. [PMID: 29987279 DOI: 10.1039/c8fo00784e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipid-based delivery systems have been broadly utilized to enhance bioavailability and bioaccessibility properties of drugs. Loading capacity and drug stability within the lipid matrix is influenced by the phase behavior of the lipid components that make up the vehicle. In this study we have investigated the influence of thermal processing at 50 °C on the subsequent phase behavior of a lipid-based delivery system comprised of a blend of monoacylglycerols, diacylglycerols, monoalkylglycerols and dialkylglycerols obtained by enzymatic glycerolysis of ratfish liver oil. Differential scanning calorimetry revealed that crystallization and melting points decreased, while powder X-ray diffraction suggested changes in the crystal structure of the product when heated to 50 °C and held for longer than 180 min. Samples heated for a short time, rapidly underwent a polymorphic transition from the α to the β polymorphic phase, whereas samples heated for long times remained in the α phase for 3 days. Polarized light microscopy also showed changes in the microstructure of the material due to the thermal treatment. These results suggest that the thermal history of lipidic encapsulation materials, above their melting point, can affect eventual encapsulation efficiency and product performance.
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Affiliation(s)
- Pablo Arranz-Martínez
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM), C/Nicolás Cabrera 9, Universidad Autónoma de Madrid 28049 Cantoblanco, Madrid, Spain
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31
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Pinault M, Guimaraes C, Couthon H, Thibonnet J, Fontaine D, Chantôme A, Chevalier S, Besson P, Jaffrès PA, Vandier C. Synthesis of Alkyl-Glycerolipids Standards for Gas Chromatography Analysis: Application for Chimera and Shark Liver Oils. Mar Drugs 2018; 16:E101. [PMID: 29570630 PMCID: PMC5923388 DOI: 10.3390/md16040101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/13/2018] [Accepted: 03/20/2018] [Indexed: 02/05/2023] Open
Abstract
Natural O-alkyl-glycerolipids, also known as alkyl-ether-lipids (AEL), feature a long fatty alkyl chain linked to the glycerol unit by an ether bond. AEL are ubiquitously found in different tissues but, are abundant in shark liver oil, breast milk, red blood cells, blood plasma, and bone marrow. Only a few AEL are commercially available, while many others with saturated or mono-unsaturated alkyl chains of variable length are not available. These compounds are, however, necessary as standards for analytical methods. Here, we investigated different reported procedures and we adapted some of them to prepare a series of 1-O-alkyl-glycerols featuring mainly saturated alkyl chains of various lengths (14:0, 16:0, 17:0, 19:0, 20:0, 22:0) and two monounsaturated chains (16:1, 18:1). All of these standards were fully characterized by NMR and GC-MS. Finally, we used these standards to identify the AEL subtypes in shark and chimera liver oils. The distribution of the identified AEL were: 14:0 (20-24%), 16:0 (42-54%) and 18:1 (6-16%) and, to a lesser extent, (0.2-2%) for each of the following: 16:1, 17:0, 18:0, and 20:0. These standards open the possibilities to identify AEL subtypes in tumours and compare their composition to those of non-tumour tissues.
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Affiliation(s)
| | | | - Hélène Couthon
- CEMCA, CNRS UMR6521, Université de Brest, IBSAM, 6 Av V. Le Gorgeu, 29238 Brest, France.
| | - Jérôme Thibonnet
- Equipe SIMBA, Synthèse et Isolement de Molécules BioActives, EA 7502, Université de Tours, 37000 Tours, France.
- Faculté de Sciences et Techniques, Université de Tours, 37000 Tours, France.
| | | | - Aurélie Chantôme
- Inserm, UMR1069, Université de Tours, 37000 Tours, France.
- Faculté de Pharmacie, Université de Tours, 37000 Tours, France.
| | - Stephan Chevalier
- Inserm, UMR1069, Université de Tours, 37000 Tours, France.
- Faculté de Pharmacie, Université de Tours, 37000 Tours, France.
| | - Pierre Besson
- Inserm, UMR1069, Université de Tours, 37000 Tours, France.
- Faculté de Pharmacie, Université de Tours, 37000 Tours, France.
| | - Paul-Alain Jaffrès
- CEMCA, CNRS UMR6521, Université de Brest, IBSAM, 6 Av V. Le Gorgeu, 29238 Brest, France.
| | - Christophe Vandier
- Inserm, UMR1069, Université de Tours, 37000 Tours, France.
- Faculté de Sciences et Techniques, Université de Tours, 37000 Tours, France.
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Rögnvaldsdottir EK, Magnusson CD, Haraldsson GG. Lipids from the marine world: Perspectives of an organic chemist. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201700166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Ma Z, Onorato JM, Chen L, Nelson DW, Yen CLE, Cheng D. Synthesis of neutral ether lipid monoalkyl-diacylglycerol by lipid acyltransferases. J Lipid Res 2017; 58:1091-1099. [PMID: 28420705 DOI: 10.1194/jlr.m073445] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 04/14/2017] [Indexed: 12/29/2022] Open
Abstract
In mammals, ether lipids exert a wide spectrum of signaling and structural functions, such as stimulation of immune responses, anti-tumor activities, and enhancement of sperm functions. Abnormal accumulation of monoalkyl-diacylglycerol (MADAG) was found in Wolman's disease, a human genetic disorder defined by a deficiency in lysosomal acid lipase. In the current study, we found that among the nine recombinant human lipid acyltransferases examined, acyl-CoA:diacylglycerol acyltransferase (DGAT)1, DGAT2, acyl-CoA:monoacylglycerol acyltransferase (MGAT)2, MGAT3, acyl-CoA:wax-alcohol acyltransferase 2/MFAT, and DGAT candidate 3 were able to use 1-monoalkylglycerol (1-MAkG) as an acyl acceptor for the synthesis of monoalkyl-monoacylglycerol (MAMAG). These enzymes demonstrated different enzymatic turnover rates and relative efficiencies for the first and second acylation steps leading to the synthesis of MAMAG and MADAG, respectively. They also exhibited different degrees of substrate preference when presented with 1-monooleoylglycerol versus 1-MAkG. In CHO-K1 cells, treatment with DGAT1 selective inhibitor, XP-620, completely blocked the synthesis of MADAG, indicating that DGAT1 is the predominant enzyme responsible for the intracellular synthesis of MADAG in this model system. The levels of MADAG in the adrenal gland of DGAT1 KO mice were reduced as compared with those of the WT mice, suggesting that DGAT1 is a major enzyme for the synthesis of MADAG in this tissue. Our findings indicate that several of these lipid acyltransferases may be able to synthesize neutral ether lipids in mammals.
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Affiliation(s)
- Zhengping Ma
- Departments of Fibrosis Discovery Bristol-Myers Squibb Company, Princeton, NJ 08543-5400
| | - Joelle M Onorato
- Bioanalytical and Discovery Analytical Sciences, Research and Development, Bristol-Myers Squibb Company, Princeton, NJ 08543-5400
| | - Luping Chen
- Departments of Fibrosis Discovery Bristol-Myers Squibb Company, Princeton, NJ 08543-5400
| | - David W Nelson
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706
| | - Chi-Liang Eric Yen
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706
| | - Dong Cheng
- Departments of Fibrosis Discovery Bristol-Myers Squibb Company, Princeton, NJ 08543-5400
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Kavaliauskiene S, Dyve Lingelem AB, Skotland T, Sandvig K. Protection against Shiga Toxins. Toxins (Basel) 2017; 9:E44. [PMID: 28165371 PMCID: PMC5331424 DOI: 10.3390/toxins9020044] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 12/12/2022] Open
Abstract
Shiga toxins consist of an A-moiety and five B-moieties able to bind the neutral glycosphingolipid globotriaosylceramide (Gb3) on the cell surface. To intoxicate cells efficiently, the toxin A-moiety has to be cleaved by furin and transported retrogradely to the Golgi apparatus and to the endoplasmic reticulum. The enzymatically active part of the A-moiety is then translocated to the cytosol, where it inhibits protein synthesis and in some cell types induces apoptosis. Protection of cells can be provided either by inhibiting binding of the toxin to cells or by interfering with any of the subsequent steps required for its toxic effect. In this article we provide a brief overview of the interaction of Shiga toxins with cells, describe some compounds and conditions found to protect cells against Shiga toxins, and discuss whether they might also provide protection in animals and humans.
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Affiliation(s)
- Simona Kavaliauskiene
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, N-0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, Oslo University Hospital, N-0379 Oslo, Norway.
| | - Anne Berit Dyve Lingelem
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, N-0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, Oslo University Hospital, N-0379 Oslo, Norway.
| | - Tore Skotland
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, N-0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, Oslo University Hospital, N-0379 Oslo, Norway.
| | - Kirsten Sandvig
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, N-0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, Oslo University Hospital, N-0379 Oslo, Norway.
- Department of Biosciences, University of Oslo, N-0316 Oslo, Norway.
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Rybin VG, Imbs AB, Demidkova DA, Ermolenko EV. Identification of molecular species of monoalkyldiacylglycerol from the squid Berryteuthis magister using liquid chromatography–APCI high-resolution mass spectrometry. Chem Phys Lipids 2017; 202:55-61. [DOI: 10.1016/j.chemphyslip.2016.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/19/2016] [Accepted: 11/21/2016] [Indexed: 11/16/2022]
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Plasmalogen modulation attenuates atherosclerosis in ApoE- and ApoE/GPx1-deficient mice. Atherosclerosis 2015; 243:598-608. [DOI: 10.1016/j.atherosclerosis.2015.10.096] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/21/2015] [Accepted: 10/22/2015] [Indexed: 11/21/2022]
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Martínez Díaz Y, Vanegas Laverde G, Reina Gamba L, Mayorga Wandurraga H, Arévalo-Ferro C, Ramos Rodríguez F, Duque Beltrán C, Castellanos Hernández L. Biofilm inhibition activity of compounds isolated from two Eunicea species collected at the Caribbean Sea. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Sutter M, Silva ED, Duguet N, Raoul Y, Métay E, Lemaire M. Glycerol Ether Synthesis: A Bench Test for Green Chemistry Concepts and Technologies. Chem Rev 2015. [PMID: 26196761 DOI: 10.1021/cr5004002] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Marc Sutter
- Equipe Catalyse Synthèse Environnement, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, UMR-CNRS 5246, Université de Lyon, Université Claude Bernard-Lyon 1, Bâtiment Curien , 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Eric Da Silva
- Equipe Catalyse Synthèse Environnement, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, UMR-CNRS 5246, Université de Lyon, Université Claude Bernard-Lyon 1, Bâtiment Curien , 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Nicolas Duguet
- Equipe Catalyse Synthèse Environnement, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, UMR-CNRS 5246, Université de Lyon, Université Claude Bernard-Lyon 1, Bâtiment Curien , 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Yann Raoul
- Organisation Nationale Interprofessionnelle des Oléagineux, 11 rue de Monceau, CS 60003, 75378 Paris Cedex 08, France
| | - Estelle Métay
- Equipe Catalyse Synthèse Environnement, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, UMR-CNRS 5246, Université de Lyon, Université Claude Bernard-Lyon 1, Bâtiment Curien , 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Marc Lemaire
- Equipe Catalyse Synthèse Environnement, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, UMR-CNRS 5246, Université de Lyon, Université Claude Bernard-Lyon 1, Bâtiment Curien , 43 Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
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Hamadate N, Matsumoto Y, Seto K, Yamamoto T, Yamaguchi H, Nakagawa T, Yamamoto E, Fukagawa M, Yazawa K. Vascular effects and safety of supplementation with shark liver oil in middle-aged and elderly males. Exp Ther Med 2015; 10:641-646. [PMID: 26622368 DOI: 10.3892/etm.2015.2568] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 01/22/2015] [Indexed: 12/16/2022] Open
Abstract
Shark liver oil (SLO) has long been used as a traditional health food, with a particular benefit for vascular health, in Japan. The aim of this study was to assess the effect of dietary supplementation with SLO on arterial stiffness and peripheral microvascular function in otherwise healthy middle-aged and older males with slightly increased arterial stiffness. A randomized, double-blind, placebo-controlled, parallel study design was used to assign 41 healthy males with a mean age of 59.0±4.0 years (range, 45-69 years) to either SLO (n=21) or placebo (n=20) treatment for eight weeks. The effects on arterial stiffness and peripheral microvascular function were assessed by the cardio-ankle vascular index (CAVI) and by measurement of hand blood flow to cutaneous tissues using a laser Doppler perfusion imaging (LDPI) technique, respectively. Although the magnitude of the changes in the CAVI value during the eight-week intervention for the SLO group did not significantly differ from that for the placebo group, the changes in the CAVI value for the former group were significantly associated (r=0.575, P<0.01) with age. It was also found that the LDPI values at week 8 were significantly lowered (P<0.05) compared with the baseline values in the placebo group, while no change was observed in the SLO group, resulting in a significant difference in the changes between the two groups (P=0.002). Neither SLO supplementation-related adverse side-effects nor any abnormal changes in routine laboratory tests, including lipid profiles and anthropometric and haemodynamic parameters, were observed throughout the intervention. SLO may have the potential to safely improve vascular health in middle-aged and elderly males.
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Affiliation(s)
- Naobumi Hamadate
- Department of Research and Development, Egao Co., Ltd., Kumamoto 862-0902, Japan
| | - Yoshiyuki Matsumoto
- Department of Research and Development, Egao Co., Ltd., Kumamoto 862-0902, Japan
| | - Kayoko Seto
- Department of Research and Development, Egao Co., Ltd., Kumamoto 862-0902, Japan
| | - Tetsuro Yamamoto
- Research Center, TTC Co., Ltd., Shibuya-ku, Tokyo 113-0021, Japan
| | - Hideyo Yamaguchi
- Research Center, TTC Co., Ltd., Shibuya-ku, Tokyo 113-0021, Japan
| | - Takashi Nakagawa
- Research Center, TTC Co., Ltd., Shibuya-ku, Tokyo 113-0021, Japan
| | - Etsushi Yamamoto
- Research Center, TTC Co., Ltd., Shibuya-ku, Tokyo 113-0021, Japan
| | - Mitsuhiko Fukagawa
- Shinyokohama Shinoharaguchi Orthopaedic Surgery/Dermatology Clinic, Yokohama, Kanagawa 222-0026, Japan
| | - Kazunaga Yazawa
- Laboratory of Nutraceuticals and Functional Foods Science, Tokyo University of Marine Science and Technology, Minato-ku, Tokyo 108-8477, Japan
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Magnusson CD, Gudmundsdottir AV, Hansen KA, Haraldsson GG. Synthesis of enantiopure reversed structured ether lipids of the 1-O-alkyl-sn-2,3-diacylglycerol type. Mar Drugs 2015; 13:173-201. [PMID: 25574735 PMCID: PMC4306931 DOI: 10.3390/md13010173] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/17/2014] [Indexed: 11/27/2022] Open
Abstract
This report describes the synthesis of reversed structured 1-O-alkyl-2,3-diacyl-sn-glycerols (DAGEs) possessing a pure saturated even number fatty acid (C6:0-C16:0) at the sn-2 position along with a pure EPA or DHA located at the terminal sn-3 position of the glycerol backbone of chimyl, batyl and selachyl alcohols. These adducts were synthesized by a highly efficient two-step chemoenzymatic process involving an immobilized Candida antarctica lipase to introduce pure EPA and DHA activated as oxime esters exclusively to the sn-3 terminal position of enantiopure chimyl, batyl and selachyl alcohols in excellent yields. The saturated fatty acids were subsequently incorporated to the remaining sn-2 position of the resulting 3-monoacylglyceryl ethers (3-MAGEs) using EDAC coupling agent in the presence of DMAP in very high to excellent yields (85%-98%). No losses of enantiomeric composition were observed during these processes. The multiple utilities of the resulting focused library of reversed structured DAGEs are discussed including how such compounds may possibly be utilized within the pharmaceutical area.
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Affiliation(s)
- Carlos D Magnusson
- Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland.
| | | | - Kai-Anders Hansen
- Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland.
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Oral administration of alkylglycerols differentially modulates high-fat diet-induced obesity and insulin resistance in mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:834027. [PMID: 23864898 PMCID: PMC3705780 DOI: 10.1155/2013/834027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 06/05/2013] [Indexed: 12/31/2022]
Abstract
Alkylglycerols (AKGs) from shark liver oil (SLO) were demonstrated to have strong potency to stimulate immune response. However, no study has been conducted on the effects of AKGs on diet-induced obesity and metabolic inflammatory disorder. The purpose of the present study was to investigate the effect of two AKGs isoforms on obesity and insulin resistance in mice fed high-fat (HF) diet. Forty-eight C57BL/6 mice were divided into normal, HF, HF + 20 mg/kg selachyl alcohol (SA), HF + 200 mg/kg SA, HF + 20 mg/kg batyl alcohol (BA), and HF + 200 mg/kg BA groups. Body weight, fasting glucose, lipids, insulin and leptin levels, serum IL-1β, and TNF-α levels were compared among different groups. Our results showed that high-dose SA decreased body weight, serum triglyceride, cholesterol, fasting glucose level, insulin level, and serum leptin level of the HF fed mice, while high-dose BA increased fasting insulin level of the HF fed mice. Pretreatment of primary adipocytes with 10 μM SA or BA differentially modulates LPS-mediated MAPK and NF-κB signaling. Our study demonstrated that oral administration of AKGs has differential effects on HF-induced obesity and metabolic inflammatory disorder in mice.
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42
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Benzoni G, Foresti F, Archetti IL, Coceva G, Guyonvarch A, Alborali L. Specific and non-specific immunity of piglets from sows fed diets containing specific fatty acids in field conditions. J Anim Physiol Anim Nutr (Berl) 2012; 97:996-1005. [PMID: 23176137 DOI: 10.1111/jpn.12014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The transfer of passive immunity from sows to piglets is important and it is the first immune protection of the new born piglet. Improving sows immunity by adding immuno-stimulating product in sows diet can positively affect colostrum composition and transfer of immune molecules to piglets. The aim of the current study is to evaluate the benefit of a different solution, made of specific fatty acids from marine origin that have been used in human medicine for decades, for sows and piglets. Two trials were conducted in commercial farm, involving 240 sows at different periods of the year. Sows were divided in a control group, without supplementation, and a test group, supplemented with the feed additive from the 90th day of gestation to weaning. Sows body condition, piglets viability and growth were recorded. Milk immunoglobulin content was measured, as well as Aujeszky antibodies in sows and piglets blood as marker of specific immunity, and blood bactericidal activity, complement activity and lysozyme as markers of non specific immunity. No effect of the product was observed on piglets zootechnical criteria and specific immunity parameters but significant improvement of piglet non specific immunity, was observed. No difference was observed neither in the piglets blood PRRSV and PCV2 antibodies and viruses nor in Aujeszky antibodies. Blood complement activity seems to be an accurate indicator of immuno-stimulating additive efficiency. Giving alkyl-glycerol fatty acids to sows in late gestation and lactation can improve the passive immunity transfer to piglets.
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Affiliation(s)
- G Benzoni
- In Vivo NSA, Vannes, France DVM, Bergamo, Italy Istituto Zooprofilattico Sperimentale Lombardia Emilia Romagna, Brescia, Italy GKL, Bologna, Italy
| | - F Foresti
- In Vivo NSA, Vannes, France DVM, Bergamo, Italy Istituto Zooprofilattico Sperimentale Lombardia Emilia Romagna, Brescia, Italy GKL, Bologna, Italy
| | - I L Archetti
- In Vivo NSA, Vannes, France DVM, Bergamo, Italy Istituto Zooprofilattico Sperimentale Lombardia Emilia Romagna, Brescia, Italy GKL, Bologna, Italy
| | - G Coceva
- In Vivo NSA, Vannes, France DVM, Bergamo, Italy Istituto Zooprofilattico Sperimentale Lombardia Emilia Romagna, Brescia, Italy GKL, Bologna, Italy
| | - A Guyonvarch
- In Vivo NSA, Vannes, France DVM, Bergamo, Italy Istituto Zooprofilattico Sperimentale Lombardia Emilia Romagna, Brescia, Italy GKL, Bologna, Italy
| | - L Alborali
- In Vivo NSA, Vannes, France DVM, Bergamo, Italy Istituto Zooprofilattico Sperimentale Lombardia Emilia Romagna, Brescia, Italy GKL, Bologna, Italy
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Activation of n-3 polyunsaturated fatty acids as oxime esters: a novel approach for their exclusive incorporation into the primary alcoholic positions of the glycerol moiety by lipase. Chem Phys Lipids 2012; 165:712-20. [DOI: 10.1016/j.chemphyslip.2012.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 07/11/2012] [Accepted: 07/12/2012] [Indexed: 11/22/2022]
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Pemha R, Pegnyemb DE, Mosset P. Synthesis of (Z)-(2′R)-1-O-(2′-methoxynonadec-10′-enyl)-sn-glycerol, a new analog of bioactive ether lipids. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Magnusson CD, Haraldsson GG. Ether lipids. Chem Phys Lipids 2011; 164:315-40. [PMID: 21635876 DOI: 10.1016/j.chemphyslip.2011.04.010] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 04/11/2011] [Accepted: 04/28/2011] [Indexed: 11/25/2022]
Abstract
The naturally occurring 1-O-alkyl-sn-glycerols and their methoxylated congeners, 1-O-(2'-methoxyalkyl)-sn-glycerols, are biologically active compounds, ubiquitously found in nature as diacyl glyceryl ether lipids and phosphoether lipids. The chief objective of this article is to provide a comprehensive and up to date review on such ether lipids. The occurrence and distribution of these compounds in nature are extensively reviewed, their chemical structure and molecular variety, their biosynthesis and chemical synthesis and, finally, their various biological effects are described and discussed. An unprecedented biosynthesis of the 2'-methoxylated alkylglycerols is proposed. The first synthesis of enantiopure (Z)-(2'R)-1-O-(2'-methoxyhexadec-4'-enyl)-sn-glycerol, the most prevalent 2'-methoxylated type alkylglycerol present in cartilaginous fish, is described. It was accomplished by a highly convergent five step process.
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Magnusson CD, Haraldsson GG. Synthesis of enantiomerically pure (Z)-(2′R)-1-O-(2′-methoxyhexadec-4′-enyl)-sn-glycerol present in the liver oil of cartilaginous fish. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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