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de Aguiar Sobral P, Miyahira RF, Zago L. Health Outcomes Related to the Consumption of Olive Products: A Brief Review. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023; 78:643-653. [PMID: 37932611 DOI: 10.1007/s11130-023-01119-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/20/2023] [Indexed: 11/08/2023]
Abstract
Olive oil, as well as by-products and waste that are left after production, particularly olive pomace and olive leaf, have been extensively researched as sources of phenolic compounds. These compounds are known for their biological properties and have been associated with the prevention of chronic non-communicable diseases. Metabolomics has been used as a methodological tool to elucidate the molecular mechanisms underlying these properties. The present review explores the health outcomes and changes in endogenous metabolite profiles induced by olive derivatives. A literature search was conducted using the scientific databases Scopus, Web of Science and PubMed, and the selected articles were published between the years 2012 and 2023. The reviewed studies have reported several health benefits of olive derivatives and their phenolic components, including appetite regulation, fewer cardiovascular disorders, and antiproliferative properties. This review also addressed the bioavailability of these compounds, their impact on the microbiota, and described biomarkers of their intake. Therefore, there should be further research using this methodology for a better understanding of the performance and therapeutic potential of olive derivatives.
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Affiliation(s)
- Pamela de Aguiar Sobral
- Graduate Program in Food, Nutrition and Health, Institute of Nutrition, State University of Rio de Janeiro, Rua São Francisco Xavier, 524, 12◦ andar, sala 12006 D - Maracanã, Rio de Janeiro, RJ, 20550-013, Brazil
| | - Roberta Fontanive Miyahira
- Graduate Program in Food, Nutrition and Health, Institute of Nutrition, State University of Rio de Janeiro, Rua São Francisco Xavier, 524, 12◦ andar, sala 12006 D - Maracanã, Rio de Janeiro, RJ, 20550-013, Brazil
| | - Lilia Zago
- Graduate Program in Food, Nutrition and Health, Institute of Nutrition, State University of Rio de Janeiro, Rua São Francisco Xavier, 524, 12◦ andar, sala 12006 D - Maracanã, Rio de Janeiro, RJ, 20550-013, Brazil.
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Caffrey C, Leamy A, O’Sullivan E, Zabetakis I, Lordan R, Nasopoulou C. Cardiovascular Diseases and Marine Oils: A Focus on Omega-3 Polyunsaturated Fatty Acids and Polar Lipids. Mar Drugs 2023; 21:549. [PMID: 37999373 PMCID: PMC10672651 DOI: 10.3390/md21110549] [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: 09/19/2023] [Revised: 10/11/2023] [Accepted: 10/21/2023] [Indexed: 11/25/2023] Open
Abstract
Cardiovascular diseases (CVD) remain the leading cause of death across the globe, hence, establishing strategies to counteract CVD are imperative to reduce mortality and the burden on health systems. Dietary modification is an effective primary prevention strategy against CVD. Research regarding dietary supplementation has become increasingly popular. This review focuses on the current in vivo, in vitro, and epidemiological studies associated with that of omega-3 polyunsaturated fatty acids (n-3 PUFAs) and polar lipids (PLs) and how they play a role against CVD. Furthermore, this review focuses on the results of several major clinical trials examining n-3 PUFAs regarding both primary and secondary prevention of CVD. Notably, we place a lens on the REDUCE-IT and STRENGTH trials. Finally, supplementation of PLs has recently been suggested as a potential alternative avenue for the reduction of CVD incidence versus neutral forms of n-3 PUFAs. However, the clinical evidence for this argument is currently rather limited. Therefore, we draw on the current literature to suggest future clinical trials for PL supplementation. We conclude that despite conflicting evidence, future human trials must be completed to confirm whether PL supplementation may be more effective than n-3 PUFA supplementation to reduce cardiovascular risk.
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Affiliation(s)
- Cliodhna Caffrey
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (C.C.); (A.L.); (E.O.); (I.Z.)
| | - Anna Leamy
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (C.C.); (A.L.); (E.O.); (I.Z.)
| | - Ellen O’Sullivan
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (C.C.); (A.L.); (E.O.); (I.Z.)
| | - Ioannis Zabetakis
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (C.C.); (A.L.); (E.O.); (I.Z.)
- Health Research Institute (HRI), University of Limerick, V94 T9PX Limerick, Ireland
- Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Ronan Lordan
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Systems Pharmacology and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Constantina Nasopoulou
- Laboratory of Food Chemistry—Technology and Quality of Food of Animal Origin, Department of Food Science and Nutrition, University of the Aegean, 814 00 Lemnos, Greece
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Ben Attia T, Ben Ali R, Nahdi A, Galai S, Ghali R, Rammeh S, Véronique El may M, Mhamdi A. Olea europaea L. leaf extract mitigates oxidative and histological damage in rat heart tissue exposed to combined noise and toluene: An experimental study. Saudi Pharm J 2023; 31:101683. [PMID: 37576861 PMCID: PMC10415226 DOI: 10.1016/j.jsps.2023.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/15/2023] [Indexed: 08/15/2023] Open
Abstract
In many occupational settings, workers are frequently exposed to toluene and noise. However, the individual and combined effects of these exposures on the cardiovascular system have not been fully elucidated. Therefore, this study aimed to investigate the impact of simultaneous exposure to toluene and noise on the rat heart, while also evaluating the potential preventive effect of olive leaf extract (OLE). Forty-eight male Wistar rats were randomly assigned to eight groups (n = 6/group): control group (C), control group that received OLE (C + OLE), group exposed to noise (N), group exposed to noise and receiving OLE (N + OLE), group exposed to toluene (T), group exposed to toluene and receiving OLE (T + OLE), group co-exposed to noise and toluene (NT), and group co-exposed to noise and toluene and receiving OLE (NT + OLE). The rats in this study were subjected to simultaneous exposure to toluene and noise for a duration of six weeks, within a custom-built plexiglass chamber. Toluene was administered at a concentration of 300 ppm, while the noise level was set to 85 dB(A). The exposure chamber was equipped with a generation system, an exposure system, and a monitoring system, ensuring precise and accurate exposure conditions. After the six-week period, heart and blood samples were collected from the rats for subsequent analysis. Plasma levels of cholesterol (CHOL), triglycerides (TG), lactate dehydrogenase (LDH), and creatine kinase (CK) were measured, and histopathological investigation was conducted using HE staining. Additionally, superoxide dismutase (SOD) and catalase (CAT) activities, as well as malondialdehyde (MDA) levels in heart tissue were measured. Our results showed that simultaneous exposure to noise and toluene altered CHOL, TG, LDH, and CK levels, and also caused an increase in lipid peroxidation levels and superoxide dismutase activity, along with a decrease in catalase activity in the heart. A significant alteration in the myocardium was also observed. However, treatment with OLE was found to modulate these oxidative and histological changes, ultimately correcting the deleterious effects induced by the combined exposure to noise and toluene. Therefore, our study suggests that OLE could be a potential preventive measure for individuals exposed to toluene and noise in industrial settings.
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Affiliation(s)
- Takoua Ben Attia
- University of Tunis El Manar, Research Unit n° 17/ES/13, Inflammation, Cell Proliferation and Cell Death, Faculty of Medicine of Tunis, Tunis, Tunisia
| | - Ridha Ben Ali
- University of Tunis El Manar, Research Unit n° 17/ES/13, Inflammation, Cell Proliferation and Cell Death, Faculty of Medicine of Tunis, Tunis, Tunisia
- University of Tunis El Manar, Tunis, Unit of Experimental Medicine, Faculty of Medicine of Tunis, Tunisia
| | - Afef Nahdi
- University of Tunis El Manar, Research Unit n° 17/ES/13, Inflammation, Cell Proliferation and Cell Death, Faculty of Medicine of Tunis, Tunis, Tunisia
| | - Said Galai
- Research Laboratory of Neurological Diseases of the Child (LR18SP04)-Department of Clinical Biology -National Institute Mongi Ben Hmida of Neurology at Tunis, Tunisia
| | - Ridha Ghali
- Laboratory of Environmental Toxicology Research, Faculty of Pharmaceutical Sciences, University of Monastir, Monastir, Tunisia
| | - Soumeya Rammeh
- University of Tunis El Manar, Tunis, Research Unit n° 17ES15- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Michèle Véronique El may
- University of Tunis El Manar, Research Unit n° 17/ES/13, Inflammation, Cell Proliferation and Cell Death, Faculty of Medicine of Tunis, Tunis, Tunisia
- University of Tunis El Manar, Tunis, Unit of Experimental Medicine, Faculty of Medicine of Tunis, Tunisia
| | - Abada Mhamdi
- University of Tunis El Manar, Research Unit n° 17/ES/13, Inflammation, Cell Proliferation and Cell Death, Faculty of Medicine of Tunis, Tunis, Tunisia
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Petsini F, Ntzouvani A, Detopoulou M, Papakonstantinou VD, Kalogeropoulos N, Fragopoulou E, Nomikos T, Kontogianni MD, Antonopoulou S. Consumption of Farmed Fish, Fed with an Olive-Pomace Enriched Diet, and Its Effect on the Inflammatory, Redox, and Platelet-Activating Factor Enzyme Profile of Apparently Healthy Adults: A Double-Blind Randomized Crossover Trial. Foods 2022; 11:foods11142105. [PMID: 35885348 PMCID: PMC9318848 DOI: 10.3390/foods11142105] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/08/2022] [Accepted: 07/13/2022] [Indexed: 02/05/2023] Open
Abstract
A fish-rich diet has a beneficial effect on cardiovascular health. The platelet activating factor (PAF) is involved in the development of atherosclerosis, and in vitro results support the regulating action of bioactive nutrients on PAF metabolism. The purpose of this study is to examine whether the consumption of farmed fish fed with an olive-pomace enriched diet (EF) affects PAF metabolism and the markers of inflammation and oxidative stress compared to the consumption of conventionally fed farmed fish (CF). Thirty apparently healthy adults completed a randomized double-blind crossover trial, during which they consumed both CF and EF twice a week for 8 weeks with a six-week washout period in between. The activities of PAF acetylhydrolase (PAF-AH), lysoPAF acetyltransferase (lysoPAF-AT), DTT-insensitive CDP-choline: 1-alkyl-2-acetyl-sn-glycerol-choline-phosphotransferase (PAF-CPT) in leukocytes, and lipoprotein-associated phospholipase A2 (LpPLA2) in serum were determined. The quantities of interleukin-6 (IL-6), high sensitivity C-reactive protein (hsCRP), oxidized LDL (ox-LDL), thiobarbituric acid-reactive substances (TBARS), and glutathione peroxidase (GPx), as well as the serum oxidation, were also determined. Both types of fish exerted similar effects as there were no statistically significant differences between the two interventions except for an elevated PAF-CPT and reduced arachidonic acid (AA) in the red blood cell (RBC) membrane lipids after the EF intake.
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Affiliation(s)
- Filio Petsini
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Agathi Ntzouvani
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Maria Detopoulou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Vasiliki D Papakonstantinou
- Laboratory of Biochemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece;
| | - Nick Kalogeropoulos
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Elizabeth Fragopoulou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Tzortzis Nomikos
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Meropi D Kontogianni
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
| | - Smaragdi Antonopoulou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University,17671 Athens, Greece; (F.P.); (A.N.); (M.D.); (N.K.); (E.F.); (T.N.); (M.D.K.)
- Correspondence:
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Higher Yield and Polyphenol Content in Olive Pomace Extracts Using 2-Methyloxolane as Bio-Based Solvent. Foods 2022; 11:foods11091357. [PMID: 35564082 PMCID: PMC9104984 DOI: 10.3390/foods11091357] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 12/04/2022] Open
Abstract
Despite its severe toxicity and negative environmental impact, hexane remain the solvent of choice for the extraction of vegetable oils. This is in contrast with the constantly growing demand for sustainable and green extraction processes. In recent years a variety of alternatives to hexane have been reported, among them 2-methyloxolane (2-MeOx), which has emerged as a promising bio-based alternative. This study evaluates the possibility of replacing hexane, in the extraction of olive pomace (OP), with 2-MeOx, both dry and saturated with water (4.5%), the latter of which is called 2-MeOx 95.5%. The three solvents have been compared in terms of extraction yield and quality, as well as the lipid and polyphenol profiles of the extracts. The work concluded that both dry 2-MeOx and 2-MeOx 95.5% can replace hexane in OP extraction, resulting in higher yields and extracts richer in phenolic compounds. This study should open the road to further semi-industrial scale investigations toward more sustainable production processes.
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Alves E, Rey F, Melo T, Barros MP, Domingues P, Domingues R. Bioprospecting Bioactive Polar Lipids from Olive (Olea europaea cv. Galega vulgar) Fruit Seeds: LC-HR-MS/MS Fingerprinting and Sub-Geographic Comparison. Foods 2022; 11:foods11070951. [PMID: 35407039 PMCID: PMC8997722 DOI: 10.3390/foods11070951] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/03/2022] [Accepted: 03/21/2022] [Indexed: 11/19/2022] Open
Abstract
Olive seeds have been considered as a new nutritionally healthy food supplement. They are rich in monounsaturated n-9 and essential polyunsaturated n-6 lipids. However, little is known about their polar lipids, potentially bioactive and chemical identity markers for olive pulp and oil. This work aimed to identify the polar lipidome of olive seeds to find possible bioactive compounds and markers of geographic origin, by studying samples from six Portuguese sub-regions. Polar lipids were obtained by solid/liquid extraction, NH2-solid-phase extraction, and identified by hydrophilic interaction liquid chromatography (HILIC)-HR-ESI-MS and MS/MS. Ninety-four compounds were identified, including phospholipids, glycolipids, sphingolipids, and acyl sterol glycosides, several of which bear polyunsaturated fatty acids. Multivariate statistical analysis found unique profiles within each sub-region and markers of geographic identity, primarily phosphatidylcholines, phosphatidylethanolamines, and lysophosphatidylethanolamines. Therefore, polar lipid signatures should be further investigated, to assess their bioactivity, nutritional value, and chemical identity for valuing olive seeds and their oil.
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Affiliation(s)
- Eliana Alves
- Mass Spectrometry Centre, LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.R.); (T.M.); (P.D.); (R.D.)
- Correspondence:
| | - Felisa Rey
- Mass Spectrometry Centre, LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.R.); (T.M.); (P.D.); (R.D.)
- ECOMARE & CESAM—Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Tânia Melo
- Mass Spectrometry Centre, LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.R.); (T.M.); (P.D.); (R.D.)
- ECOMARE & CESAM—Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Madalena P. Barros
- Cooperativa de Olivicultores de Nelas, C.R.L., Zona Industrial de Nelas, 3520-095 Nelas, Portugal;
| | - Pedro Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.R.); (T.M.); (P.D.); (R.D.)
| | - Rosário Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.R.); (T.M.); (P.D.); (R.D.)
- ECOMARE & CESAM—Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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Detopoulou M, Ntzouvani A, Petsini F, Gavriil L, Fragopoulou E, Antonopoulou S. Consumption of Enriched Yogurt with PAF Inhibitors from Olive Pomace Affects the Major Enzymes of PAF Metabolism: A Randomized, Double Blind, Three Arm Trial. Biomolecules 2021; 11:biom11060801. [PMID: 34071485 PMCID: PMC8227157 DOI: 10.3390/biom11060801] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 01/02/2023] Open
Abstract
Platelet-activating factor (PAF), a proinflammatory lipid mediator, plays a crucial role in the formation of the atherosclerotic plaque. Therefore, the inhibition of endothelium inflammation by nutraceuticals, such as PAF inhibitors, is a promising alternative for preventing cardiovascular diseases. The aim of the present study was to evaluate the impact of a new functional yogurt enriched with PAF inhibitors of natural origin from olive oil by-products on PAF metabolism. Ninety-two apparently healthy, but mainly overweight volunteers (35-65 years) were randomly allocated into three groups by block-randomization. The activities of PAF's biosynthetic and catabolic enzymes were measured, specifically two isoforms of acetyl-CoA:lyso-PAF acetyltransferase (LPCATs), cytidine 5'-diphospho-choline:1-alkyl-2-acetyl-sn-glycerol cholinephosphotransferase (PAF-CPT) and two isoforms of platelet activating factor acetylhydrolase in leucocytes (PAF-AH) and plasma (lipoprotein associated phospholipase-A2, LpPLA2). The intake of the enriched yogurt resulted in reduced PAF-CPT and LpPLA2 activities. No difference was observed in the activities of the two isoforms of lyso PAF-AT. In conclusion, intake of yogurt enriched in PAF inhibitors could favorably modulate PAF biosynthetic and catabolic pathways.
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Detopoulou P, Demopoulos CA, Antonopoulou S. Micronutrients, Phytochemicals and Mediterranean Diet: A Potential Protective Role against COVID-19 through Modulation of PAF Actions and Metabolism. Nutrients 2021; 13:nu13020462. [PMID: 33573169 PMCID: PMC7911163 DOI: 10.3390/nu13020462] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 01/08/2023] Open
Abstract
The new coronavirus disease 2019 (COVID-19) pandemic is an emerging situation with high rates of morbidity and mortality, in the pathophysiology of which inflammation and thrombosis are implicated. The disease is directly connected to the nutritional status of patients and a well-balanced diet is recommended by official sources. Recently, the role of platelet activating factor (PAF) was suggested in the pathogenesis of COVID-19. In the present review several micronutrients (vitamin A, vitamin C, vitamin E, vitamin D, selenium, omega-3 fatty acids, and minerals), phytochemicals and Mediterranean diet compounds with potential anti-COVID activity are presented. We further underline that the well-known anti-inflammatory and anti-thrombotic actions of the investigated nutrients and/or holistic dietary schemes, such as the Mediterranean diet, are also mediated through PAF. In conclusion, there is no single food to prevent coronavirus Although the relationship between PAF and COVID-19 is not robust, a healthy diet containing PAF inhibitors may target both inflammation and thrombosis and prevent the deleterious effects of COVID-19. The next step is the experimental confirmation or not of the PAF-COVID-19 hypothesis.
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Affiliation(s)
- Paraskevi Detopoulou
- Department of Clinical Nutrition, General Hospital Korgialenio Benakio, 11526 Athens, Greece;
| | - Constantinos A. Demopoulos
- Laboratory of Biochemistry, Faculty of Chemistry, National & Kapodistrian University of Athens, 16121 Athens, Greece;
| | - Smaragdi Antonopoulou
- Laboratory of Biology, Biochemistry and Microbiology, Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 70 El. Venizelou Street, 17671 Athens, Greece
- Correspondence: ; Tel.: +30-210-954-9230; Fax: +30-210-957-7050
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Thermochemical Conversion of Olive Oil Industry Waste: Circular Economy through Energy Recovery. RECYCLING 2020. [DOI: 10.3390/recycling5020012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The demand for new sources of energy is one of the main quests for humans. At the same time, there is a growing need to eliminate or recover a set of industrial or agroforestry waste sources. In this context, several options may be of interest, especially given the amounts produced and environmental impacts caused. Olive pomace can be considered one of these options. Portugal, as one of the most prominent producers of olive oil, therefore, also faces the problem of dealing with the waste of the olive oil industry. Olive pomace energy recovery is a subject referenced in many different studies and reports since long ago. However, traditional forms of recovery, such as direct combustion, did not prove to be the best solution, mainly due to its fuel properties and other characteristics, which cause difficulties in its storage and transportation as well. Torrefaction and pyrolysis can contribute to a volume reduction, optimizing storage and transportation. In this preliminary study, were carried out torrefaction and pyrolysis tests on olive pomace samples, processed at 300 °C, 400 °C, and 500 °C, followed by laboratory characterization of the materials. It was verified an improvement in the energy content of the materials, demonstrating that there is potential for the use of these thermochemical conversion technologies for the energy recovery of olive pomace.
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Abstract
Previous studies reported an inverse association between healthy dietary patterns (such as Mediterranean diet) and the incidence of cardiovascular events. As the mechanism accounting for cardiovascular disease is prevalently due to the atherothrombosis, where a pivotal role is played by platelet activation, it would be arguable that diets with protective effects against cardiovascular disease exert an anti-atherothrombotic effect via inhibition of platelet activation. There are several and sparse typologies of studies, which investigated if single nutrients by diets recognized as having cardiovascular protection may exert an antithrombotic effect. The most investigated nutrients are key components of the Mediterranean diets such as fruits and vegetables, fish, olive oil, and wine; other diets with protective effects include nuts and cocoa. Here we summarize experimental and human interventional studies which investigated the antithrombotic effects of such nutrients in experimental models of thrombosis or analyzed biomarkers of clotting, platelet, and fibrinolysis activation in human; furthermore in vitro studies explored the underlying mechanism at level of several cell lines such as platelets or endothelial cells. In this context, we analyzed if nutrients affect simultaneously or separately clotting, platelet, and fibrinolysis pathways giving special attention to the relationship between oxidative stress and thrombosis as most nutrients are believed to possess antioxidant properties.
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Affiliation(s)
- Francesco Violi
- From the Department of Clinical Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Italy (F.V., D.P., P.P.).,Mediterranea Cardiocentro, Napoli, Italy (F.V., P.P., R.C.)
| | - Daniele Pastori
- From the Department of Clinical Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Italy (F.V., D.P., P.P.)
| | - Pasquale Pignatelli
- From the Department of Clinical Internal, Anesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Italy (F.V., D.P., P.P.).,Mediterranea Cardiocentro, Napoli, Italy (F.V., P.P., R.C.)
| | - Roberto Carnevale
- Mediterranea Cardiocentro, Napoli, Italy (F.V., P.P., R.C.).,Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Italy (R.C.)
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11
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Vergani L. Fatty Acids and Effects on In Vitro and In Vivo Models of Liver Steatosis. Curr Med Chem 2019; 26:3439-3456. [PMID: 28521680 DOI: 10.2174/0929867324666170518101334] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/14/2017] [Accepted: 03/14/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Fatty liver, or steatosis, is a condition of excess accumulation of lipids, mainly under form of triglycerides (TG), in the liver, and it is the hallmark of non-alcoholic fatty liver disease (NAFLD). NAFLD is the most common liver disorder world-wide and it has frequently been associated with obesity, hyperlipidemia and insulin resistance. Free fatty acids (FA) are the major mediators of hepatic steatosis; patients with NAFLD have elevated levels of circulating FA that correlate with disease severity. METHODS Steatosis is a reversible condition that can be resolved with changed behaviors, or that can progress towards more severe liver damages such as steatohepatitis (NASH), fibrosis and cirrhosis. In NAFLD, FA of exogenous or endogenous origin accumulate in the hepatocytes and trigger liver damages. Excess TG are stored in cytosolic lipid droplets (LDs) that are dynamic organelles acting as hubs for lipid metabolism. RESULTS In the first part of this review, we briefly reassumed the main classes of FA and their chemical classification as a function of the presence and number of double bonds, their metabolic pathways and effects on human health. Then, we summarized the main genetic and diet-induced animal models of NAFLD, as well as the cellular models of NAFLD. CONCLUSIONS In recent years, both the diet-induced animal models of NAFLD as well as the cellular models of NAFLD have found ever more application to investigate the mechanisms involved in NAFLD, and we referred to their advantages and disadvantages.
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Affiliation(s)
- Laura Vergani
- DISTAV, Department of Earth, Environment and Life Sciences, University of Genova, Italy
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Forty Years Since the Structural Elucidation of Platelet-Activating Factor (PAF): Historical, Current, and Future Research Perspectives. Molecules 2019; 24:molecules24234414. [PMID: 31816871 PMCID: PMC6930554 DOI: 10.3390/molecules24234414] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 11/29/2019] [Accepted: 12/02/2019] [Indexed: 12/11/2022] Open
Abstract
In the late 1960s, Barbaro and Zvaifler described a substance that caused antigen induced histamine release from rabbit platelets producing antibodies in passive cutaneous anaphylaxis. Henson described a ‘soluble factor’ released from leukocytes that induced vasoactive amine release in platelets. Later observations by Siraganuan and Osler observed the existence of a diluted substance that had the capacity to cause platelet activation. In 1972, the term platelet-activating factor (PAF) was coined by Benveniste, Henson, and Cochrane. The structure of PAF was later elucidated by Demopoulos, Pinckard, and Hanahan in 1979. These studies introduced the research world to PAF, which is now recognised as a potent phospholipid mediator. Since its introduction to the literature, research on PAF has grown due to interest in its vital cell signalling functions and more sinisterly its role as a pro-inflammatory molecule in several chronic diseases including cardiovascular disease and cancer. As it is forty years since the structural elucidation of PAF, the aim of this review is to provide a historical account of the discovery of PAF and to provide a general overview of current and future perspectives on PAF research in physiology and pathophysiology.
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Lipidomic Profiling of the Olive ( Olea europaea L.) Fruit towards Its Valorisation as a Functional Food: In-Depth Identification of Triacylglycerols and Polar Lipids in Portuguese Olives. Molecules 2019; 24:molecules24142555. [PMID: 31337054 PMCID: PMC6680557 DOI: 10.3390/molecules24142555] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/04/2019] [Accepted: 07/12/2019] [Indexed: 12/16/2022] Open
Abstract
Olives (Olea europaea L.) are classic ingredients in the Mediterranean diet with well-known health benefits, but their lipid composition has not been fully addressed. In this work, we characterised triacylglycerol (TAG) and polar lipid profiles of the olive pulp while using a complementary methodological approach that was based on solid-phase extraction to recover the neutral lipid (NL) and the polar lipid-rich fractions. The TAG profile was analysed in the NL-fraction by C30 reversed-phase liquid chromatography (LC) and the polar lipid profile by normal-phase hydrophilic interaction liquid chromatography (HILIC), with both being coupled to electrospray ionization-mass spectrometry (ESI-MS) and ESI-MS/MS. This approach identified 71 TAG ions that were attributed to more than 350 molecular species, with fatty acyl chain lengths from C11:0 to C26:0, including different polyunsaturated acyl chains. The polar lipids included 107 molecular species that belonged to 11 lipid classes that comprised phospholipids, glyceroglycolipids, glycosphingolipids, and betaine lipids. In addition to polyunsaturated fatty acids, some of the phospholipids, glycolipids, and glycosphingolipids that were identified in the olive pulp have been described as biologically active molecules. Lipidomic phenotyping of the olive pulp has led to the discovery of compounds that will allow for a better assessment of its nutritional value and new applications of bioactive lipid components in this functional food.
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Tierney AC, Zabetakis I. Changing the Irish dietary guidelines to incorporate the principles of the Mediterranean diet: proposing the MedÉire diet. Public Health Nutr 2018; 22:1-7. [PMID: 30319088 PMCID: PMC10260643 DOI: 10.1017/s136898001800246x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 07/28/2018] [Accepted: 08/22/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVE In Ireland, the major causes of death are CVD. The current Irish healthy eating guidelines and food pyramid primarily advocate a low-fat diet. However, there is overwhelming scientific evidence for the benefits of a Mediterranean diet (Med Diet) in the prevention and management of metabolic disease as well as improving overall health and well-being. In the current commentary, the rationale to incorporate the principles of the Med Diet into the Irish dietary guidelines is presented. DESIGN Perspectives of authors. SETTING Local and international. SUBJECTS Populations in Europe, North America and Australia. RESULTS Adopting components of the Med Diet presents a more evidence-based approach to updating the current Irish dietary guidelines. Experience and lessons from other non-Mediterranean countries show that it could be a feasible and effective solution to improving the dietary habits of the Irish population to prevent and mange chronic diseases. CONCLUSIONS Policies and programmes to address perceived barriers to the Med Diet's implementation and uptake in non-Mediterranean countries should be promoted.
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Affiliation(s)
- Audrey C Tierney
- School of Allied Health, HS2 032 Health Science Building, University of Limerick, Castletroy, Limerick, Republic of Ireland
- School of Allied Health, La Trobe University, Melbourne, Australia
| | - Ioannis Zabetakis
- Department of Biological Sciences, University of Limerick, Limerick, Republic of Ireland
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15
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Poutzalis S, Lordan R, Nasopoulou C, Zabetakis I. Phospholipids of goat and sheep origin: Structural and functional studies. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2018.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Polar Lipids from Olives and Olive Oil: A Review on Their Identification, Significance and Potential Biotechnological Applications. Foods 2018; 7:foods7070109. [PMID: 29996479 PMCID: PMC6068626 DOI: 10.3390/foods7070109] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 01/02/2023] Open
Abstract
Polar lipids are minor components of olives and olive oil and include a myriad of molecules such as phospholipids and glycolipids. Even though sensitive and high-resolution analytical approaches have been used to unveil the polar lipidome of these matrices, new insights on their composition are needed. In this review, we will describe the findings on the identification and characterization of polar lipids from olives and olive oil and the underlying analytical challenges. The significance of polar lipids will also be discussed as potential markers of identity and traceability of olives and olive oil and in detecting adulteration of olive oil. Their potential impact on nutrition and health will be presented as a valuable source of bioactive compounds and as promising ingredients for different uses from olive-derived industrial by-products.
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17
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Tsoupras A, Lordan R, Demuru M, Shiels K, Saha SK, Nasopoulou C, Zabetakis I. Structural Elucidation of Irish Organic Farmed Salmon (Salmo salar) Polar Lipids with Antithrombotic Activities. Mar Drugs 2018; 16:E176. [PMID: 29882848 PMCID: PMC6025065 DOI: 10.3390/md16060176] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/16/2018] [Accepted: 05/22/2018] [Indexed: 01/05/2023] Open
Abstract
While several marine polar lipids (PL) have exhibited cardioprotective properties through their effects on the platelet-activating factor (PAF) pathways, salmon PL have not been tested so far. In this study, the antithrombotic activities of salmon PL were assessed in human platelets and the structural characterisation of bioactive salmon PL was performed by GC-MS and LC-MS analyses. PL from fillets of Irish organic farmed salmon (Salmo salar) were extracted and separated into several lipid subclasses by thin-layer chromatography (TLC), while their fatty acid profile was fully characterised by GC-MS. Salmon total lipids (TL), total neutral lipids (TNL), total polar lipids (TPL), and each PL subclass obtained by TLC were further assessed for their in vitro effects towards PAF-induced and thrombin-induced platelet aggregation in human platelets. Salmon PL exhibited antithrombotic effects on human platelet aggregation, mostly through their strong inhibitory effects against the PAF pathway with IC50 values comparable to other marine PL, but with lower effects towards the thrombin pathway. PL fractions corresponding to phosphatidylcholine and phosphatidylethanolamine derivatives exhibited the most potent anti-PAF effects, while LC-MS analysis putatively elucidated their structure/function relationship. Several diacyl-PC/PE and alkyl-acyl-PC/PE species containing mostly docosahexaenoic acid at their sn-2 glycerol-backbone may be responsible for the bioactivity. The data presented suggests that salmon contains PL with strong antithrombotic bioactivities.
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Affiliation(s)
- Alexandros Tsoupras
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Ronan Lordan
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Martina Demuru
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
- Department of Life and Environmental Sciences, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy.
| | - Katie Shiels
- Shannon Applied Biotechnology Centre, Limerick Institute of Technology, Moylish Park, V94 E8YF Limerick, Ireland.
| | - Sushanta Kumar Saha
- Shannon Applied Biotechnology Centre, Limerick Institute of Technology, Moylish Park, V94 E8YF Limerick, Ireland.
| | - Constantina Nasopoulou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, GR 81400 Myrina, Lemnos, Greece.
| | - Ioannis Zabetakis
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
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Tsoupras A, Lordan R, Zabetakis I. Inflammation, not Cholesterol, Is a Cause of Chronic Disease. Nutrients 2018; 10:E604. [PMID: 29757226 PMCID: PMC5986484 DOI: 10.3390/nu10050604] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/03/2018] [Accepted: 05/09/2018] [Indexed: 12/17/2022] Open
Abstract
Since the Seven Countries Study, dietary cholesterol and the levels of serum cholesterol in relation to the development of chronic diseases have been somewhat demonised. However, the principles of the Mediterranean diet and relevant data linked to the examples of people living in the five blue zones demonstrate that the key to longevity and the prevention of chronic disease development is not the reduction of dietary or serum cholesterol but the control of systemic inflammation. In this review, we present all the relevant data that supports the view that it is inflammation induced by several factors, such as platelet-activating factor (PAF), that leads to the onset of cardiovascular diseases (CVD) rather than serum cholesterol. The key to reducing the incidence of CVD is to control the activities of PAF and other inflammatory mediators via diet, exercise, and healthy lifestyle choices. The relevant studies and data supporting these views are discussed in this review.
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Affiliation(s)
- Alexandros Tsoupras
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Ronan Lordan
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Ioannis Zabetakis
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
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Nasopoulou C, Lytoudi K, Zabetakis I. Evaluation of Olive Pomace in the Production of Novel Broilers With Enhanced In Vitro Antithrombotic Properties. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201700290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Constantina Nasopoulou
- Department of Food Science and Nutrition, School of the Environment; University of the Aegean; Myrina Lemnos 81400 Greece
| | - Konstantina Lytoudi
- Laboratory of Food Chemistry, Faculty of Chemistry, School of Sciences; National and Kapodistrian University of Athens; Athens 15771 Greece
| | - Ioannis Zabetakis
- Department of Biological Sciences; University of Limerick; Limerick Ireland
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20
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Lordan R, Tsoupras A, Zabetakis I. Phospholipids of Animal and Marine Origin: Structure, Function, and Anti-Inflammatory Properties. Molecules 2017; 22:E1964. [PMID: 29135918 PMCID: PMC6150200 DOI: 10.3390/molecules22111964] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/06/2017] [Accepted: 11/11/2017] [Indexed: 12/29/2022] Open
Abstract
In this review paper, the latest literature on the functional properties of phospholipids in relation to inflammation and inflammation-related disorders has been critically appraised and evaluated. The paper is divided into three sections: Section 1 presents an overview of the relationship between structures and biological activities (pro-inflammatory or anti-inflammatory) of several phospholipids with respect to inflammation. Section 2 and Section 3 are dedicated to the structures, functions, compositions and anti-inflammatory properties of dietary phospholipids from animal and marine sources. Most of the dietary phospholipids of animal origin come from meat, egg and dairy products. To date, there is very limited work published on meat phospholipids, undoubtedly due to the negative perception that meat consumption is an unhealthy option because of its putative associations with several chronic diseases. These assumptions are addressed with respect to the phospholipid composition of meat products. Recent research trends indicate that dairy phospholipids possess anti-inflammatory properties, which has led to an increased interest into their molecular structures and reputed health benefits. Finally, the structural composition of phospholipids of marine origin is discussed. Extensive research has been published in relation to ω-3 polyunsaturated fatty acids (PUFAs) and inflammation, however this research has recently come under scrutiny and has proved to be unreliable and controversial in terms of the therapeutic effects of ω-3 PUFA, which are generally in the form of triglycerides and esters. Therefore, this review focuses on recent publications concerning marine phospholipids and their structural composition and related health benefits. Finally, the strong nutritional value of dietary phospholipids are highlighted with respect to marine and animal origin and avenues for future research are discussed.
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Affiliation(s)
- Ronan Lordan
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Alexandros Tsoupras
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
| | - Ioannis Zabetakis
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
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22
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A Review on Platelet Activating Factor Inhibitors: Could a New Class of Potent Metal-Based Anti-Inflammatory Drugs Induce Anticancer Properties? Bioinorg Chem Appl 2017; 2017:6947034. [PMID: 28458618 PMCID: PMC5387815 DOI: 10.1155/2017/6947034] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/27/2017] [Indexed: 12/12/2022] Open
Abstract
In this minireview, we refer to recent results as far as the Platelet Activating Factor (PAF) inhibitors are concerned. At first, results of organic compounds (natural and synthetic ones and specific and nonspecific) as inhibitors of PAF are reported. Emphasis is given on recent results about a new class of the so-called metal-based inhibitors of PAF. A small library of 30 metal complexes has been thus created; their anti-inflammatory activity has been further evaluated owing to their inhibitory effect against PAF in washed rabbit platelets (WRPs). In addition, emphasis has also been placed on the identification of preliminary structure-activity relationships for the different classes of metal-based inhibitors.
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23
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Megalemou K, Sioriki E, Lordan R, Dermiki M, Nasopoulou C, Zabetakis I. Evaluation of sensory and in vitro anti-thrombotic properties of traditional Greek yogurts derived from different types of milk. Heliyon 2017; 3:e00227. [PMID: 28119955 PMCID: PMC5236004 DOI: 10.1016/j.heliyon.2016.e00227] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 12/02/2016] [Accepted: 12/22/2016] [Indexed: 01/10/2023] Open
Abstract
Given that fermented dairy products exhibit high bioactivities against cardiovascular diseases (CVDs), the anti-thrombotic properties, fatty acid profiles and sensory properties of cow, goat and ewe derived Greek yogurts have been assessed and compared. The total lipids (TL), total polar lipids (TPL), total neutral lipids (TNL) were obtained and the polar lipid fractions were further separated by thin layer chromatography (TLC). These lipid samples (TL, TPL and TLC fractions) were subsequently assessed for their biological activity against atherosclerosis based on the in vitro inhibition of Platelet Activating Factor (PAF)-induced platelet aggregation. The fatty acid compositions of all yogurts were analyzed by Gas Chromatography with flame ionization detector (GC-FID). Goat yogurt lipids have been found to exert more potent inhibitory activity (i.e. lower IC50 values in both TL and TPL samples) in contrast to the corresponding fractions of cow and ewe yogurts. The observed sensory data indicates that ewe yogurt was the most palatable of all three Greek yogurts.
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Affiliation(s)
- Kalliopi Megalemou
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Eleni Sioriki
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - Ronan Lordan
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
| | - Maria Dermiki
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
| | - Constantina Nasopoulou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, Myrina Lemnos 81400, Greece
| | - Ioannis Zabetakis
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
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24
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Structure and cardioprotective activities of polar lipids of olive pomace, olive pomace-enriched fish feed and olive pomace fed gilthead sea bream (Sparus aurata). Food Res Int 2016. [DOI: 10.1016/j.foodres.2016.03.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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Megson IL, Whitfield PD, Zabetakis I. Lipids and cardiovascular disease: where does dietary intervention sit alongside statin therapy? Food Funct 2016; 7:2603-14. [PMID: 27109548 DOI: 10.1039/c6fo00024j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Seven Countries Study suggested an association between serum cholesterol and cardiovascular disease (CVD). However, the association was not consistent across the various cohorts of participants in different countries; while it was very clear in US and Northern European cohorts, it was weak in Southern European and Japanese cohorts. Nevertheless, the study triggered research into cholesterol-lowering drug strategies, ultimately leading to the development of statins amongst others. Clinical evidence in support of statins is strong and the vast majority of the medical community advocate these drugs as highly effective first-line therapeutics in primary and secondary prevention of CVD. However, growing evidence of side-effects associated with statins in a significant proportion of patients suggests that these drugs are not a universal solution to CVD. There is a need, therefore, to revisit the evidence and to re-appraise the relative importance of cholesterol amongst many other lipids as potential modulators of atherogenesis. In this review, we assess the relative merits of statin therapy in CVD versus dietary interventions that impact on lipids other than cholesterol, including omega-3 fatty acids and polar lipid fractions of various foods (e.g. fish and olive oil). We conclude that careful design around the lipid components of dietary interventions presents a credible alternative in patients who are intolerant to statins or averse to taking such drugs.
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Affiliation(s)
- Ian L Megson
- Department of Diabetes & Cardiovascular Science, University of the Highlands & Islands, UK
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26
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Poutzalis S, Anastasiadou A, Nasopoulou C, Megalemou K, Sioriki E, Zabetakis I. Evaluation of the in vitro anti-atherogenic activities of goat milk and goat dairy products. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s13594-015-0266-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Nantapo CW, Muchenje V, Nkukwana TT, Hugo A, Descalzo A, Grigioni G, Hoffman LC. Socio-economic dynamics and innovative technologies affecting health-related lipid content in diets: Implications on global food and nutrition security. Food Res Int 2015. [DOI: 10.1016/j.foodres.2015.05.033] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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28
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Assessment of the in Vitro Antithrombotic Properties of Sardine (Sardina pilchardus) Fillet Lipids and Cod Liver Oil. FISHES 2015. [DOI: 10.3390/fishes1010001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Umar A, Yimin W, Tohti I, Upur H, Berké B, Moore N. Effect of traditional Uyghur medicine abnormal Savda Munziq extract on rabbit platelet aggregation in vitro and rat arteriovenous shunt thrombosis in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2015; 159:184-188. [PMID: 25449463 DOI: 10.1016/j.jep.2014.11.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/11/2014] [Accepted: 11/04/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVE Abnormal Savda Munziq (ASMq) is a standard herbal preparation used in Uyghur traditional medicine to fight chronic diseases including cardiovascular, but its specific effects on thrombosis and platelet aggregation are unknown. METHODS Rabbit platelets were incubated with ASMq extract (10, 20, 40 µg/ml) for 15, 30, or 60 min, and aggregation was induced with ADP and collagen. In vivo, ASMq extract 2.97 g/kg, 5.94g/kg, 11.88 g/kg per os daily for 15 days were tested on thrombus wet weight in a rat model of arterio-venous bypass thrombosis. Plasma thromboxane B2 (TXB2) and 6-keto-PGF1a (6PG) were measured by radioimmunoassay. Aspirin (12 µg/ml and 5mg/kg) and saline were used as control in both experiments. RESULTS ASMq inhibited ADP and collagen-induced aggregation in vitro in a dose-dependent manner that increased over time, to a maximum of 6.4 ± 1.3% and 21.6 ± 4.0% for ADP and collagen, respectively, at one hour׳s incubation with the highest concentration, whereas the effects of aspirin (34.5 ± 2.2% and 41.9 ± 2.5%, respectively) were stable over time. In vivo, ASMq inhibited thrombus formation dose-dependently, by 70% at the highest dose, compared to 67% with aspirin. ASMq essentially did not change prostaglandin production, compared to the clear inhibition by aspirin. CONCLUSION Abnormal Savda Munziq extract inhibits dose-dependent platelet aggregation with ADP or collagen in vitro and thrombosis in vivo to values similar to those of aspirin, though unlike aspirin this effect does not seem mediated by an inhibition of cyclo-oxygenase.
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Affiliation(s)
- Anwar Umar
- Department of Pharmacology, Xinjiang Medical University, 830054 Urumqi, Xinjiang, People׳s Republic of China; Department of Pharmacology, Universite de Bordeaux, F-33076 Bordeaux Cedex, France
| | - Wuliya Yimin
- Department of Pharmacology, Xinjiang Medical University, 830054 Urumqi, Xinjiang, People׳s Republic of China
| | - Ibadet Tohti
- Department of Pharmacology, Xinjiang Medical University, 830054 Urumqi, Xinjiang, People׳s Republic of China
| | - Halmurat Upur
- Department of Pharmacology, Xinjiang Medical University, 830054 Urumqi, Xinjiang, People׳s Republic of China.
| | - Bénédicte Berké
- Department of Pharmacology, Universite de Bordeaux, F-33076 Bordeaux Cedex, France
| | - Nicholas Moore
- Department of Pharmacology, Xinjiang Medical University, 830054 Urumqi, Xinjiang, People׳s Republic of China; Department of Pharmacology, Universite de Bordeaux, F-33076 Bordeaux Cedex, France.
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30
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Impact of N-acetylcysteine and sesame oil on lipid metabolism and hypothalamic-pituitary-adrenal axis homeostasis in middle-aged hypercholesterolemic mice. Sci Rep 2014; 4:6806. [PMID: 25348324 PMCID: PMC4210865 DOI: 10.1038/srep06806] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 10/07/2014] [Indexed: 12/21/2022] Open
Abstract
Hyperlipidemia and stress are important factors affecting cardiovascular health in middle-aged individuals. We investigated the effects of N-acetylcysteine (NAC) and sesame oil on the lipidemic status, liver architecture and the hypothalamic-pituitary-adrenal (HPA) axis of middle-aged mice fed a cholesterol-enriched diet. We randomized 36 middle-aged C57bl/6 mice into 6 groups: a control group, a cholesterol/cholic acid diet group, a cholesterol/cholic acid diet group with NAC supplementation, a cholesterol/cholic acid diet enriched with 10% sesame oil and two groups receiving a control diet enriched with NAC or sesame oil. NAC administration prevented the onset of the disturbed lipid profile, exhibiting decreased lipid peroxidation and alkaline phosphatase (ALP) levels, restored nitric oxide bioavailability and reduced hepatic damage, compared to non-supplemented groups. High-cholesterol feeding resulted in increased hypothalamic glucocorticoid receptors (GR) levels, while NAC supplementation prevented this effect. NAC supplementation presented significant antioxidant capacity by means of preventing serum lipid status alterations, hepatic damage, and HPA axis disturbance due to high-cholesterol feeding in middle-aged mice. These findings suggest a beneficial preventive action of plant-derived antioxidants, such as NAC, on lipid metabolism and on the HPA axis.
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31
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Sioriki E, Nasopoulou C, Demopoulos CA, Zabetakis I. Comparison of Sensory and Cardioprotective Properties of Olive-Pomace Enriched and Conventional Gilthead Sea Bream (Sparus aurata): The Effect of Grilling. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2014. [DOI: 10.1080/10498850.2013.813100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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Zabetakis I. Food security and cardioprotection: the polar lipid link. J Food Sci 2014; 78:R1101-4. [PMID: 23957417 DOI: 10.1111/1750-3841.12194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 05/21/2013] [Indexed: 01/30/2023]
Abstract
The projected increase in world population and therefore demand for food in the foreseeable future pose some risks on how secure is the food production system today. Millions of people are threatened by malnutrition, cardiovascular diseases (CVDs), diabetes, and obesity. This is a multidimensional challenge: the production of food needs to be increased but also the quality of food needs to be improved so less people suffer from undernourishment and CVDs. This hypothesis paper addresses this problem by critically evaluating recent developments on the role of food components against CVDs, presenting recent insights for assessing the nutritional value of food and suggesting novel approaches toward the sustainable production of food that would, in turn, lead to increased food security. The issue of the sustainability of lipid sources and genetically modified crops is also discussed from a food security point of view.
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Affiliation(s)
- Ioannis Zabetakis
- Laboratory of Food Chemistry, Faculty of Chemistry, School of Sciences, Natl. and Kapodistrian Univ. of Athens, Athens 15771, Greece.
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Evaluation of the in vitro anti-atherogenic properties of lipid fractions of olive pomace, olive pomace enriched fish feed and gilthead sea bream (Sparus aurata) fed with olive pomace enriched fish feed. Mar Drugs 2013; 11:3676-88. [PMID: 24084786 PMCID: PMC3826129 DOI: 10.3390/md11103676] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 09/12/2013] [Accepted: 09/13/2013] [Indexed: 11/26/2022] Open
Abstract
Given the pivotal role of Platelet-Activating-Factor (PAF) in atherosclerosis and the cardio-protective role of PAF-inhibitors derived from olive pomace, the inclusion of olive pomace in fish feed has been studied for gilthead sea bream (Sparus aurata). The aim of the current research was to elucidate the anti-atherogenic properties of specific HPLC lipid fractions obtained from olive pomace, olive pomace enriched fish feed and fish fed with the olive pomace enriched fish feed, by evaluating their in vitro biological activity against washed rabbit platelets. This in vitro study underlines that olive pomace inclusion in fish feed improves the nutritional value of both fish feed and fish possibly by enriching the marine lipid profile of gilthead sea bream (Sparus aurata) with specific bioactive lipid compounds of plant origin.
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Nasopoulou C, Smith T, Detopoulou M, Tsikrika C, Papaharisis L, Barkas D, Zabetakis I. Structural elucidation of olive pomace fed sea bass (Dicentrarchus labrax) polar lipids with cardioprotective activities. Food Chem 2013; 145:1097-105. [PMID: 24128590 DOI: 10.1016/j.foodchem.2013.08.091] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 06/25/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
Abstract
The purpose of this study was to structurally characterise the polar lipids of sea bass (Dicentrarchus labrax), fed with an experimental diet containing olive pomace (OP), that exhibit cardioprotective activities. OP has been added to conventional fish oil (FO) feed at 4% and this was the OP diet, having been supplemented as finishing diet to fish. Sea bass was aquacultured using either FO or OP diet. At the end of the dietary experiment, lipids in both samples of fish muscle were quantified and HPLC fractionated. The in vitro cardioprotective properties of the polar lipid fractions, using washed rabbit's platelets, have been assessed and the two most biologically active fractions were further analysed by mass spectrometry. The gas-chromatrograpy-mass spectrometric data shows that these two fractions contain low levels of myristic (14:0), oleic (18:1 cis ω-9) and linoleic acids (18:2 ω-6), but high levels of palmitic (16:0) and stearic acids (18:0) as well as eicosadienoic acid (20:2 ω-6). The first fraction (MS1) also contained significant levels of arachidonic acid (20:4 ω-6) and the omega-3 fatty acids: eicosapentaenoic acid (22:5) and docosahexaenoic acid (22:6). Electrospray-mass spectrometry elucidated that the lipid composition of the two fractions contained various diacyl-glycerophospholipids species, where the majority of them have either 18:0 or 18:1 fatty acids in the sn-1 position and either 22:6 or 20:2 fatty acids in the sn-2 position for MS1 and MS2, respectively. Our research focuses on the structure/function relationship of fish muscle polar lipids and cardiovascular diseases and structural data are given for polar lipid HPLC fractions with strong cardioprotective properties.
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Affiliation(s)
- Constantina Nasopoulou
- Laboratory of Food Chemistry, Faculty of Chemistry, National and Kapodistrian University of Athens, Athens 15771, Greece
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Dub AM, Dugani AM. Antithrombotic effect of repeated doses of the ethanolic extract of local olive (Olea europaea L.) leaves in rabbits. Libyan J Med 2013; 8:20947. [PMID: 23702352 PMCID: PMC3662861 DOI: 10.3402/ljm.v8i0.20947] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 04/17/2013] [Accepted: 04/19/2013] [Indexed: 12/04/2022] Open
Abstract
The incidence of thromboembolic diseases is increasing, and they are a major cause of mortality and morbidity worldwide. Mediterranean diet is known for its high content of olive products, especially olive oil, which has known cardiovascular health benefits, including those on blood pressure, cholesterol level, and thrombogenesis. All previous animal and clinical studies investigating the beneficial antithrombotic effects of olives have focused on olive oil and a few on olive leaves (OLEs). In this study, the ethanolic extract of OLE was evaluated for its antithrombotic activity in the rabbit model of thrombosis induced by ligature of the vena cava and intravenous administration of tissue thromboplastin. Pre-treatment with 100 or 200 mg/kg per day of the ethanolic extract for 8 weeks significantly prolonged the prothrombin time (PT) in comparison to the control group (12.10 ± 0.35 sec and 14.38 ± 0.29 sec vs. 10.8 ± 0.32 sec, p < 0.05 and 0.001, respectively). In comparison to the control group, the same doses had no statistically significant effect on thrombus weight (16.85 ± 0.67 mg, 16.32 ± 0.35 mg, and 17.81 ± 0.75 mg; p = 0.18 and 0.06) or on activated partial thromboplastin time (APTT) (19.17 ± 0.33 sec, 19.12 ± 0.73 sec, and 18.97 ± 0.41 sec; p = 0.36 and 0.43, respectively). One important finding in this study concerns thrombus morphology. In the extract treatment groups, the thrombus was filament-like and did not adhere to blood vessel walls, whereas in the control group the thrombus was thick and almost completely occluded the vein. Therefore, these results suggest that OLE ethanolic extract can modify the extrinsic coagulation pathway as evidenced by the prolongation of PT and changes in thrombus morphology, enough to justify further research to evaluate its possible antithrombotic effects.
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Affiliation(s)
| | - Aisha M. Dugani
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, University of Tripoli, Tripoli, Libya
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Jin WY, Kim SH, Kim HK, Jang DG, Nam JB, Kang YM, Hwang BY, Kim DS. Antiplatelet and antithrombotic effect of Phyllostachys pubescens leaves and Mume Fructus combination. Integr Med Res 2013; 2:70-75. [PMID: 28664057 PMCID: PMC5481669 DOI: 10.1016/j.imr.2013.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 04/08/2013] [Accepted: 04/10/2013] [Indexed: 11/17/2022] Open
Abstract
Background Agents currently used for the treatment and prevention of thrombosis have a number of side effects. We conducted this study to develop antithrombotic agents from herbs that are used in food. Methods The 80% (v/v) ethanol extracts of Phyllostachys pubescens leaf (PL) and Mume Fructus (MF) and their combinations—2:1 (PM21), 1:1 (PM11), and 1:2 (PM12)—were evaluated on rat platelet aggregation induced by adenosine diphosphate (ADP) in vitro and on arteriovenous shunt thrombosis after 3 days of oral treatment in rats in vivo. Results At 100 μg/mL, PM21 and PM11 inhibited in vitro ADP-induced aggregation by 44.0 ± 4.3% and 30.0 ± 3.2%, respectively, whereas PL, MF, and PM12 weakly or scarcely inhibited ADP-induced aggregation by 3.9 ± 3.2%, 13.0 ± 2.7%, and 5.2 ± 1.3%, respectively. The IC50 values of PM21 on ADP-, collagen-, and thrombin-induced platelet aggregations were 135.6 ± 7.4 μg/mL, 142.7 ± 5.8 μg/mL, and 186.5 ± 9.7 μg/mL, respectively. In an in vivo rat arteriovenous-shunt thrombosis model, thrombus weight was significantly decreased after the oral administration of 400 mg/kg PL (27.8 ± 3.0%, p < 0.01) or MF (35.2 ± 2.1%, p < 0.01), and with a good accord to the in vitro results, the combination of PL and MF in the ratio of 2:1, PM21 (60.9 ± 1.2%, p < 0.001), showed a superior antithrombotic effect to those of individual extracts. At dosages of 200 mg/kg, 100 mg/kg, and 50 mg/kg, PM21 dose-dependently decreased thrombosis weight (ED50, 314 mg/kg). Conclusion These results suggest that combination preparations of PL and MF, especially their 2:1 combination, can increase antiplatelet and antithromboticeffects more than PL and MF alone, offering evidence for a potential novel combination antithrombotic therapy.
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Affiliation(s)
- Wen Yi Jin
- KOC Biotech Inc., Daejeon 306-791, South Korea
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 300-716, South Korea
| | - Ho Kyoung Kim
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Daejeon 305-811, South Korea
| | | | - Jeong Bum Nam
- College of Pharmacy, Chungbuk National University, Cheongju 361-763, South Korea
| | - Young Min Kang
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Daejeon 305-811, South Korea
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Cheongju 361-763, South Korea
| | - Dong-Seon Kim
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Daejeon 305-811, South Korea
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Lou-Bonafonte JM, Arnal C, Navarro MA, Osada J. Efficacy of bioactive compounds from extra virgin olive oil to modulate atherosclerosis development. Mol Nutr Food Res 2012; 56:1043-57. [DOI: 10.1002/mnfr.201100668] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Palmieri D, Aliakbarian B, Casazza AA, Ferrari N, Spinella G, Pane B, Cafueri G, Perego P, Palombo D. Effects of polyphenol extract from olive pomace on anoxia-induced endothelial dysfunction. Microvasc Res 2012; 83:281-9. [DOI: 10.1016/j.mvr.2012.02.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 02/13/2012] [Accepted: 02/14/2012] [Indexed: 01/27/2023]
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Effects of olive pomace and olive pomace oil on growth performance, fatty acid composition and cardio protective properties of gilthead sea bream (Sparus aurata) and sea bass (Dicentrarchus labrax). Food Chem 2011; 129:1108-13. [PMID: 25212344 DOI: 10.1016/j.foodchem.2011.05.086] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 04/12/2011] [Accepted: 05/19/2011] [Indexed: 11/18/2022]
Abstract
Gilthead sea bream (Sparus aurata) and sea bass (Dicentrarchus labrax) were fed with two experimental diets: olive pomace diet and olive pomace oil diet, in order to examine whether fish oil substitution in fish feeds by olive oil production wastes, such as olive pomace and olive pomace oil, has an influence on growth performance, fatty acid composition and cardio protective properties of fish. Gilthead sea bream fed with both experimental diets exhibited satisfactory growth performance factors while sea bass did not. The total lipids of gilthead sea bream fed with olive pomace diet contained statistically decreased levels of fatty acids, while exhibited the most potent biological activity against platelet aggregation induced by Platelet Activating Factor. These data indicate that olive pomace can be used as a partial substitute of fish oil in fish feed improving its cardio protective properties.
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Tsantila N, Karantonis HC, Perrea DN, Theocharis SE, Iliopoulos DG, Iatrou C, Antonopoulou S, Demopoulos CA. Atherosclerosis regression study in rabbits upon olive pomace polar lipid extract administration. Nutr Metab Cardiovasc Dis 2010; 20:740-747. [PMID: 19748252 DOI: 10.1016/j.numecd.2009.06.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Revised: 04/13/2009] [Accepted: 06/18/2009] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND AIMS Virgin olive oil polar lipid extract (OOPL) and olive pomace polar lipid extract (PPL) have similar antiatherosclerotic effects in cholesterol-fed rabbits. Our aim was to compare the effect of PPL with that of simvastatin on the progression of atherogenesis. METHODS AND RESULTS Rabbits were fed an atherogenic diet for 6 weeks in order to develop dyslipidemia and atheromatous lesions. Following documentation of these events in random animals (group A, n=6), the remaining were fed for 3 weeks with: standard chow alone (group B, n=6), chow supplemented with PPL (group C, n=6), and chow supplemented with simvastatin (group D, n=6). Blood was collected at 0, 6 and 9 weeks, to determine plasma lipid levels, plasma PAF-AH activity, platelet aggregation (PAF-EC(50)), resistance of plasma to oxidation (RPO) and extent of atheromatous lesions in aortas. The atherogenic diet induced dyslipidemia and increased PAF-AH activity. Dyslipidemia and PAF-activity reduced more effectively in groups C and D. RPO decreased in group B only. PAF-EC(50) values decreased in group C only. Atherogenesis progression in group C was prevented to an extent indistinguishable from that in group D. PAF-AH activity was positively correlated, whereas RPO was negatively correlated with the extent of atheromatous lesions. CONCLUSION PPL, as a dietary supplement, is equipotent to simvastatin in preventing the progression of atherogenesis.
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Affiliation(s)
- N Tsantila
- Faculty of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
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Tsantila N, Tsoupras AB, Fragopoulou E, Antonopoulou S, Iatrou C, Demopoulos CA. In Vitro and In Vivo Effects of Statins on Platelet-Activating Factor and Its Metabolism. Angiology 2010; 62:209-18. [DOI: 10.1177/0003319710375089] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Platelet activating factor (PAF) is implicated in cardiovascular disease (CVD). Statins are widely used in these situations. Therefore, we assessed their effect on the biological activities and metabolism of PAF. Several statins, including simvastatin, exhibited an inhibitory effect against PAF, comparable with that of PAF-inhibitors. Simvastatin also suppressed in vivo PAF-biosynthesis via the de novo pathway, in leukocytes of 6 simvastatin-treated volunteers. Total cholesterol and low-density lipoprotein cholesterol were also significantly decreased, whereas high-density lipoprotein cholesterol, triacylglycerol, EC50, and lag time were unaffected in these participants. Simvastatin with an intact lactone ring also inhibited PAF-activities, while incubation of human mesangial cells with it also resulted in decreased de novo PAF-biosynthesis. This suggests that these simvastatin-dependent effects are independent of its lactone ring. These new actions of statins should be further studied in PAF-implicated pathological conditions such as CVD, cancer, and renal disease.
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Affiliation(s)
- Nektaria Tsantila
- Laboratory of Biochemistry, Faculty of Chemistry, National and Kapodistrian University, Athens, Greece
| | - Alexandros B. Tsoupras
- Laboratory of Biochemistry, Faculty of Chemistry, National and Kapodistrian University, Athens, Greece,
| | | | | | - Christos Iatrou
- Nephrology Centre, “G. Papadakis” General Hospital of Nikea-Pireaus, Athens, Greece
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In vivo anti-atherogenic properties of cultured gilthead sea bream (Sparus aurata) polar lipid extracts in hypercholesterolaemic rabbits. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.11.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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44
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Stamatakis G, Tsantila N, Samiotaki M, Panayotou GN, Dimopoulos AC, Halvadakis CP, Demopoulos CA. Detection and isolation of antiatherogenic and antioxidant substances present in olive mill wastes by a novel filtration system. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:10554-10564. [PMID: 19877679 DOI: 10.1021/jf9016288] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Olive mill waste water (OMWW) is a major environmental issue in the Mediterranean. We address this problem by investigating the wastes for the presence of biologically active compounds already detected in both olive oil and pomace. Two initial OMWW samples were filtered using two microporous filtering media: (a) clayey diatomite and (b) zeolitic volcanic tuffs, obtaining three filtered samples from each. All initial and filtrated samples were tested for their activity on platelet activating factor (PAF)-induced aggregation. The results showed that the initial samples contain biologically active compounds (PAF inhibitors) and that in their respective last-eluted filtered samples these compounds are purified. These eluted samples, along with their corresponding initial OMWW, were further separated with HPLC and the purified fractions responsible for the aforementioned biological activity, were further studied using chemical determinations and MS analysis. It was confirmed that the PAF inhibitor present in these fractions resembles the one isolated from olive oil. These results offer a new approach on the OMWW handling by offering an alternative use of this waste as starting material for nutritional and/or pharmaceutical purposes in the future.
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Affiliation(s)
- George Stamatakis
- Faculty of Chemistry, National and Kapodistrian University of Athens, Athens, Greece
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