1
|
Alkhalifa AE, Al-Ghraiybah NF, Kaddoumi A. Extra-Virgin Olive Oil in Alzheimer's Disease: A Comprehensive Review of Cellular, Animal, and Clinical Studies. Int J Mol Sci 2024; 25:1914. [PMID: 38339193 PMCID: PMC10856527 DOI: 10.3390/ijms25031914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/29/2024] [Accepted: 02/03/2024] [Indexed: 02/12/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that is characterized by several pathological hallmarks, including the deposition of amyloid-β (Aβ) plaques, neurofibrillary tangles, blood-brain barrier (BBB) dysfunction, increased oxidative stress, and neuroinflammation. Current treatment options include monoclonal antibody drugs, acetylcholinesterase, and n-methyl-d-aspartate (NMDA) antagonists. Although those treatments provide some improvements in patients' quality of life, they fail to prevent or cure AD. Current research aims to identify novel targets and tools for AD prevention and modification. In this context, several studies showed the beneficial effect of the Mediterranean diet in the prevention and treatment of AD. One integral component of the Mediterranean diet is olive oil and extra-virgin olive oil (EVOO), which is high in phenolic compounds. EVOO and other olive-related phenolic compounds have been shown to reduce the risk of developing mild cognitive impairment (MCI) and AD. In this review, we discuss the mechanisms by which EVOO and phenolic compounds exert neuroprotective effects, including modulation of AD pathologies and promotion of cognitive health. Findings indicate that EVOO and its phenolic constituents influence key pathological processes of AD, such as Aβ aggregation, tau phosphorylation, and neuroinflammation, while also enhancing BBB integrity and reducing oxidative stress. The human studies cited reveal a consistent trend where the consumption of olive oil is associated with cognitive benefits and a decreased risk of AD and related dementias. In conclusion, EVOO and its phenolic compounds hold promising potential for the prevention and treatment of AD, representing a significant shift towards more effective strategies against this complex neurodegenerative disorder.
Collapse
Affiliation(s)
| | | | - Amal Kaddoumi
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 720 S Donahue Dr., Auburn, AL 36849, USA; (A.E.A.); (N.F.A.-G.)
| |
Collapse
|
2
|
Akbarzadeh SS, Pourfakhraei E, Zargar M, Kashanchi M, Aghaei SS. Introducing of high rich lysine, arginine, and unsaturated fatty acids microalga as a food supplement. World J Microbiol Biotechnol 2023; 40:43. [PMID: 38105384 DOI: 10.1007/s11274-023-03839-2] [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: 07/29/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023]
Abstract
Microalgae are powerful source for nutritionally valuable components as proteins, carbohydrates and especially unsaturated fatty acids. Microalgae may be employed in pharmaceutical, food, cosmetic, health industries, and biofuels. In this study for looking at high-level unsaturated fatty acids species, from 31 strains, by comparing growth curves, the best strain with a high growth rate and lipid content was selected by red Nile staining. It was determined by molecular identification that this strain belongs to the genus Chlorella sp. and is deposited into the Agricultural Biotechnology Research Institute of Iran Culture collection with culture collection number ABRIICC 30,041. Biomass analysis after growth optimization by response surface methodology showed that the selected strain had a specific growth rate of 0.216 ± 0.008 d-1, biomass productivity of 142.58 ± 4.41 mg/Ld, and lipid content of 13.9 ± 0.26% with a high level of unsaturated fatty acids of 53.15%. It also included 51.3 ± 0.53% protein with a very high quality essential amino acids of 40.36%, the most lysine (8.77%) and arginine (13.31%) has been reported until now, and 26.9 ± 0.23% carbohydrates in photoautotroph condition. By MTT assay, there is no effect of cytotoxicity. This research introduces a potent native strain comparable with commercial strains that can be a hopeful source for food supplements and valuable bioactive ingredients in functional foods.
Collapse
Affiliation(s)
| | - Elaheh Pourfakhraei
- Industrial and Environmental Biotechnology Department, Research Institute of Applied Science, ACECR, Shahid Beheshti University, Tehran, Iran.
| | - Mohsen Zargar
- Production and Recycling of Materials and Energy Research Center, Qom Branch, Islamic Azad University, Qom, Iran.
| | - Mona Kashanchi
- Industrial and Environmental Biotechnology Department, Research Institute of Applied Science, ACECR, Shahid Beheshti University, Tehran, Iran
| | - Seyed Soheil Aghaei
- Production and Recycling of Materials and Energy Research Center, Qom Branch, Islamic Azad University, Qom, Iran
| |
Collapse
|
3
|
Romero-Márquez JM, Forbes-Hernández TY, Navarro-Hortal MD, Quirantes-Piné R, Grosso G, Giampieri F, Lipari V, Sánchez-González C, Battino M, Quiles JL. Molecular Mechanisms of the Protective Effects of Olive Leaf Polyphenols against Alzheimer's Disease. Int J Mol Sci 2023; 24:ijms24054353. [PMID: 36901783 PMCID: PMC10001635 DOI: 10.3390/ijms24054353] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
Alzheimer's Disease (AD) is the cause of around 60-70% of global cases of dementia and approximately 50 million people have been reported to suffer this disease worldwide. The leaves of olive trees (Olea europaea) are the most abundant by-products of the olive grove industry. These by-products have been highlighted due to the wide variety of bioactive compounds such as oleuropein (OLE) and hydroxytyrosol (HT) with demonstrated medicinal properties to fight AD. In particular, the olive leaf (OL), OLE, and HT reduced not only amyloid-β formation but also neurofibrillary tangles formation through amyloid protein precursor processing modulation. Although the isolated olive phytochemicals exerted lower cholinesterase inhibitory activity, OL demonstrated high inhibitory activity in the cholinergic tests evaluated. The mechanisms underlying these protective effects may be associated with decreased neuroinflammation and oxidative stress via NF-κB and Nrf2 modulation, respectively. Despite the limited research, evidence indicates that OL consumption promotes autophagy and restores loss of proteostasis, which was reflected in lower toxic protein aggregation in AD models. Therefore, olive phytochemicals may be a promising tool as an adjuvant in the treatment of AD.
Collapse
Affiliation(s)
- Jose M. Romero-Márquez
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
| | - Tamara Y. Forbes-Hernández
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
| | - María D. Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
| | - Rosa Quirantes-Piné
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, 18016 Granada, Spain
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
- Center for Human Nutrition and Mediterranean Foods (NUTREA), University of Catania, 95123 Catania, Italy
| | - Francesca Giampieri
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011 Santander, Spain
| | - Vivian Lipari
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011 Santander, Spain
- Department of Project Management, Universidad Internacional Iberoamericana, Campeche 24560, Mexico
- Department of Prohect Management, Universidade Internacional do Cuanza, Cuito 250, Bié, Angola
| | - Cristina Sánchez-González
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
- Sport and Health Research Centre, University of Granada, C/Menéndez Pelayo 32, 18016 Granada, Spain
| | - Maurizio Battino
- Department of Clinical Sciences, Polytechnic University of Marche, 60131 Ancona, Italy
- International Joint Research Laboratory of Intelligent Agriculture and Agri-Products Processing, Jiangsu University, Zhenjiang 212013, China
| | - José L. Quiles
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, 18016 Granada, Spain
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011 Santander, Spain
- Correspondence:
| |
Collapse
|
4
|
Angeloni C, Malaguti M, Prata C, Freschi M, Barbalace MC, Hrelia S. Mechanisms Underlying Neurodegenerative Disorders and Potential Neuroprotective Activity of Agrifood By-Products. Antioxidants (Basel) 2022; 12:antiox12010094. [PMID: 36670956 PMCID: PMC9854890 DOI: 10.3390/antiox12010094] [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: 11/30/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 01/03/2023] Open
Abstract
Neurodegenerative diseases, characterized by progressive loss in selected areas of the nervous system, are becoming increasingly prevalent worldwide due to an aging population. Despite their diverse clinical manifestations, neurodegenerative diseases are multifactorial disorders with standard features and mechanisms such as abnormal protein aggregation, mitochondrial dysfunction, oxidative stress and inflammation. As there are no effective treatments to counteract neurodegenerative diseases, increasing interest has been directed to the potential neuroprotective activities of plant-derived compounds found abundantly in food and in agrifood by-products. Food waste has an extremely negative impact on the environment, and recycling is needed to promote their disposal and overcome this problem. Many studies have been carried out to develop green and effective strategies to extract bioactive compounds from food by-products, such as peel, leaves, seeds, bran, kernel, pomace, and oil cake, and to investigate their biological activity. In this review, we focused on the potential neuroprotective activity of agrifood wastes obtained by common products widely produced and consumed in Italy, such as grapes, coffee, tomatoes, olives, chestnuts, onions, apples, and pomegranates.
Collapse
Affiliation(s)
- Cristina Angeloni
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| | - Marco Malaguti
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
- Correspondence: (M.M.); (C.P.)
| | - Cecilia Prata
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum–University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
- Correspondence: (M.M.); (C.P.)
| | - Michela Freschi
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| | - Maria Cristina Barbalace
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| | - Silvana Hrelia
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| |
Collapse
|
5
|
Sánchez-Martínez JD, Garcia AR, Alvarez-Rivera G, Valdés A, Brito MA, Cifuentes A. In Vitro Study of the Blood-Brain Barrier Transport of Natural Compounds Recovered from Agrifood By-Products and Microalgae. Int J Mol Sci 2022; 24:ijms24010533. [PMID: 36613976 PMCID: PMC9820279 DOI: 10.3390/ijms24010533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022] Open
Abstract
Agrifood by-products and microalgae represent a low-cost and valuable source of bioactive compounds with neuroprotective properties. However, the neuroprotective effectiveness of therapeutic molecules can be limited by their capacity to cross the blood-brain barrier (BBB) and reach the brain. In this research, various green extracts from Robinia pseudoacacia (ASFE), Cyphomandra betacea (T33), Coffea arabica (PPC1), Olea europaea L., (OL-SS), Citrus sinensis (PLE100) by-products and from the microalgae Dunaliella salina (DS) that have demonstrated in vitro neuroprotective potential were submitted to an in vitro BBB permeability and transport assay based on an immortalized human brain microvascular endothelial cells (HBMEC) model. Toxicity and BBB integrity tests were performed, and the transport of target bioactive molecules across the BBB were evaluated after 2 and 4 h of incubation using gas and liquid chromatography coupled to quadrupole-time-of-flight mass spectrometry (GC/LC-Q-TOF-MS). The HBMEC-BBB transport assay revealed a high permeability of representative neuroprotective compounds, such as mono- and sesquiterpenoids, phytosterols and some phenolic compounds. The obtained results from the proposed in vitro BBB cellular model provide further evidence of the neuroprotective potential of the target natural extracts, which represent a promising source of functional ingredients to be transferred into food supplements, food additives, or nutraceuticals with scientifically supported neuroprotective claims.
Collapse
Affiliation(s)
- José David Sánchez-Martínez
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Ana Rita Garcia
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Gerardo Alvarez-Rivera
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Alberto Valdés
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Maria Alexandra Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Correspondence: (M.A.B.); (A.C.); Tel.: +351-217946449 (M.A.B.); Tel.: +34-910017955 (A.C.)
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
- Correspondence: (M.A.B.); (A.C.); Tel.: +351-217946449 (M.A.B.); Tel.: +34-910017955 (A.C.)
| |
Collapse
|
6
|
Gallego R, Valdés A, Suárez-Montenegro ZJ, Sánchez-Martínez JD, Cifuentes A, Ibáñez E, Herrero M. Anti-inflammatory and neuroprotective evaluation of diverse microalgae extracts enriched in carotenoids. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Sánchez-Martínez JD, Alvarez-Rivera G, Gallego R, Fagundes MB, Valdés A, Mendiola JA, Ibañez E, Cifuentes A. Neuroprotective potential of terpenoid-rich extracts from orange juice by-products obtained by pressurized liquid extraction. Food Chem X 2022; 13:100242. [PMID: 35498984 PMCID: PMC9040013 DOI: 10.1016/j.fochx.2022.100242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/23/2021] [Accepted: 02/02/2022] [Indexed: 01/17/2023] Open
Abstract
Orange juice by-products valorized by green PLE process. Terpenoid-rich PLE extract with enhanced in-vitro neuroprotective activity. Molecular docking between terpenoids and active sites of the target enzymes. Selected PLE extracts show human cell-based neuroprotection capacity.
Pressurized liquid extraction (PLE) conditions were optimized to improve the recovery of orange (Citrus sinensis) by-products terpenoids. The neuroprotective potential of the PLE extracts were tested against a set of in-vitro assay (antioxidant (ABTS), reactive oxygen/nitrogen species (ROS/RNS)) as well as enzymatic tests (acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and lipoxygenase (LOX)). Gas chromatography coupled to high-resolution mass spectrometry (GC-q-TOF-MS) analysis revealed a higher enrichment in mono- and sesquiterpenoids of the PLE extracts with the highest neuroprotection capacity. In-silico molecular docking analysis showed the specific interaction of representative terpenoids with enzymes active sites. The results demonstrate that the selected extract at 100 °C and 30 minutes possesses high antioxidant (ABTSIC50 = 13.5 μg mL−1; ROSIC50 = 4.4 μg mL−1), anti-cholinesterase (AChEIC50 = 137.1 vg L−1; BChEIC50 = 147.0 μg mL−1) and anti-inflammatory properties (against IL-6 and LOXIC50 = 76.1 μg mL−1), with low cytotoxicity and protection against L-glutamic acid in cell models.
Collapse
Affiliation(s)
- José David Sánchez-Martínez
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Gerardo Alvarez-Rivera
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Rocio Gallego
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Mariane Bittencourt Fagundes
- Department of Food Technology and Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Alberto Valdés
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Jose A Mendiola
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Elena Ibañez
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, UAM-CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| |
Collapse
|
8
|
Safety assessment of citrus and olive by-products using a sustainable methodology based on natural deep eutectic solvents. J Chromatogr A 2022; 1669:462922. [DOI: 10.1016/j.chroma.2022.462922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/14/2022] [Accepted: 02/25/2022] [Indexed: 11/18/2022]
|
9
|
Valdés A, Álvarez-Rivera G, Socas-Rodríguez B, Herrero M, Ibáñez E, Cifuentes A. Foodomics: Analytical Opportunities and Challenges. Anal Chem 2022; 94:366-381. [PMID: 34813295 PMCID: PMC8756396 DOI: 10.1021/acs.analchem.1c04678] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Alberto Valdés
- Laboratory of Foodomics, Institute
of Food Science Research, CIAL, CSIC, Nicolas Cabrera 9, Madrid, 28049, Spain
| | - Gerardo Álvarez-Rivera
- Laboratory of Foodomics, Institute
of Food Science Research, CIAL, CSIC, Nicolas Cabrera 9, Madrid, 28049, Spain
| | - Bárbara Socas-Rodríguez
- Laboratory of Foodomics, Institute
of Food Science Research, CIAL, CSIC, Nicolas Cabrera 9, Madrid, 28049, Spain
| | - Miguel Herrero
- Laboratory of Foodomics, Institute
of Food Science Research, CIAL, CSIC, Nicolas Cabrera 9, Madrid, 28049, Spain
| | - Elena Ibáñez
- Laboratory of Foodomics, Institute
of Food Science Research, CIAL, CSIC, Nicolas Cabrera 9, Madrid, 28049, Spain
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute
of Food Science Research, CIAL, CSIC, Nicolas Cabrera 9, Madrid, 28049, Spain
| |
Collapse
|
10
|
Innovative Extraction Technologies for Development of Functional Ingredients Based on Polyphenols from Olive Leaves. Foods 2021; 11:foods11010103. [PMID: 35010227 PMCID: PMC8750173 DOI: 10.3390/foods11010103] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 11/30/2022] Open
Abstract
Olive tree (Olea europea L.) leaves represent around 10% of the total weight of olives arriving at any given mill, which are generally discarded, causing economic and environmental issues. However, these are rich sources of natural bioactive compounds (i.e., polyphenols), which have health-promoting potential. Thus, the valorization of olive leaves by recovering and reusing their components should be a must for food sustainability and circular economy. This review provides an insight into the principal polyphenols present in olive leaves, together with agronomic variables influencing their content. It also summarizes the recent advances in the application of novel extraction technologies that have shown promising extraction efficacy, reducing the volume of extraction solvent and saving time and cost. Moreover, potential industrial uses and international patents filed in the pharmaceutic, food, and cosmetic sectors are discussed.
Collapse
|
11
|
Study of the potential neuroprotective effect of Dunaliella salina extract in SH-SY5Y cell model. Anal Bioanal Chem 2021; 414:5357-5371. [PMID: 34923590 PMCID: PMC9242911 DOI: 10.1007/s00216-021-03819-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/03/2021] [Accepted: 12/01/2021] [Indexed: 01/13/2023]
Abstract
Alzheimer’s disease (AD) is the most common form of dementia caused by a progressive loss of neurons from different regions of the brain. This multifactorial pathophysiology has been widely characterized by neuroinflammation, extensive oxidative damage, synaptic loss, and neuronal cell death. In this sense, the design of multi-target strategies to prevent or delay its progression is a challenging goal. In the present work, different in vitro assays including antioxidant, anti-inflammatory, and anti-cholinergic activities of a carotenoid-enriched extract from Dunaliella salina microalgae obtained by supercritical fluid extraction are studied. Moreover, its potential neuroprotective effect in the human neuron-like SH-SY5Y cell model against remarkable hallmarks of AD was also evaluated. In parallel, a comprehensive metabolomics study based on the use of charged-surface hybrid chromatography (CSH) and hydrophilic interaction liquid chromatography (HILIC) coupled to high-resolution tandem mass spectrometry (Q-TOF MS/MS) was applied to evaluate the effects of the extract on the metabolism of the treated cells. The use of advanced bioinformatics and statistical tools allowed the identification of more than 314 metabolites in SH-SY5Y cells, of which a great number of phosphatidylcholines, triacylglycerols, and fatty acids were significantly increased, while several phosphatidylglycerols were decreased, compared to controls. These lipidomic changes in cells along with the possible role exerted by carotenoids and other minor compounds on the cell membrane might explain the observed neuroprotective effect of the D. salina extract. However, future experiments using in vivo models to corroborate this hypothesis must be carried out.
Collapse
|