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Naranjo Á, Álvarez-Soria MJ, Aranda-Villalobos P, Martínez-Rodríguez AM, Martínez-Lara E, Siles E. Hydroxytyrosol, a Promising Supplement in the Management of Human Stroke: An Exploratory Study. Int J Mol Sci 2024; 25:4799. [PMID: 38732018 PMCID: PMC11084205 DOI: 10.3390/ijms25094799] [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: 03/20/2024] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Hydroxytyrosol (HT) is a bioactive olive oil phenol with beneficial effects in a number of pathological situations. We have previously demonstrated that an HT-enriched diet could serve as a beneficial therapeutic approach to attenuate ischemic-stroke-associated damage in mice. Our exploratory pilot study examined this effect in humans. Particularly, a nutritional supplement containing 15 mg of HT/day was administered to patients 24 h after the onset of stroke, for 45 days. Biochemical and oxidative-stress-related parameters, blood pressure levels, serum proteome, and neurological and functional outcomes were evaluated at 45 and 90 days and compared to a control group. The main findings were that the daily administration of HT after stroke could: (i) favor the decrease in the percentage of glycated hemoglobin and diastolic blood pressure, (ii) control the increase in nitric oxide and exert a plausible protective effect in oxidative stress, (iii) modulate the evolution of the serum proteome and, particularly, the expression of apolipoproteins, and (iv) be beneficial for certain neurological and functional outcomes. Although a larger trial is necessary, this study suggests that HT could be a beneficial nutritional complement in the management of human stroke.
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Affiliation(s)
- Ángela Naranjo
- Departamento de Biología Experimental, Universidad de Jaén, 23071 Jaén, Spain;
| | | | | | | | | | - Eva Siles
- Departamento de Biología Experimental, Universidad de Jaén, 23071 Jaén, Spain;
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Peñalver R, Martínez‐Zamora L, Lorenzo JM, Ros G, Nieto Martínez G. Effect of hydroxytyrosol, Moringa, and spirulina on the physicochemical properties and nutritional characteristics of gluten-free brownies. Food Sci Nutr 2024; 12:385-398. [PMID: 38268863 PMCID: PMC10804121 DOI: 10.1002/fsn3.3778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 01/26/2024] Open
Abstract
Brownies, enriched with fiber and Moringa oleifera, hydroxytyrosol (HXT), and spirulina (encapsulated and nonencapsulated), and dietary fiber using psyllium were elaborated. For that, a commercial control (CTRL) and an experimental control (CTRL) (without antioxidants) were compared. Color, nutritional composition, pH, antioxidant capacity, total phenolic compounds, as well as sensory properties were evaluated. The results showed the brownies developed with psyllium and the different extracts increased total dietary fiber compared to CTRL Commercial and CTRL, with E-spirulina (14.93 g/100 g) and Moringa (11.91 g/100 g) being the most prominent samples. However, with regard to soluble fiber, the highest content of NE-spirulina and the lowest content of HXT were observed. In addition, brownies enriched with extracts showed higher antioxidant capacity and higher phenolic compounds than controls, with HXT standing out at 299.25 μM Trolox/g in ABTS, 1470.08 μM Trolox/g in DPPH, and 18.15 μM Trolox/g in FRAP. However, a high level of phenolic compounds was found in E-Spirulina (604.71 mg/L). In reference to fatty acids, monounsaturated fatty acids (MUFA) (70%) were the predominant fatty acids, followed by polyunsaturated fatty acids (PUFA) (19%) and saturated fatty acids (SFA) (10%). Glutamic acid and asparagine were the predominant amino acids. As for mineral content, N-spirulina and E-spirulina were the brownies with the highest iron bioaccessibility; Si, Na, B, Al, P, Fe, Zn, Bi, Ca, Cu, Mg, Mn, Rb, S, and Sr being the most abundant elements in the brownies of this study. In addition, the HXT and Moringa samples scored higher in overall acceptability compared to the controls. The findings suggest that the incorporation of psyllium, quinoa flour, and antioxidant extracts in brownies could be a viable approach to produce a healthy brownie enriched with fiber, antioxidants and, therefore, considering the nutritional, physicochemical, and organoleptic characteristics, HTX is the ideal compound to enrich bakery products.
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Affiliation(s)
- Rocío Peñalver
- Department of Food Technology, Food Science and Nutrition, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”University of MurciaMurciaSpain
| | - Lorena Martínez‐Zamora
- Department of Food Technology, Food Science and Nutrition, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”University of MurciaMurciaSpain
| | - José Manuel Lorenzo
- Centro Tecnológico de la Carne de GaliciaParque Tecnolóxico de GaliciaOurenseSpain
- Área de Tecnología de los Alimentos, Facultad de Ciencias de OurenseUniversidad de VigoOurenseSpain
| | - Gaspar Ros
- Department of Food Technology, Food Science and Nutrition, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”University of MurciaMurciaSpain
| | - Gema Nieto Martínez
- Department of Food Technology, Food Science and Nutrition, Faculty of Veterinary Sciences, Regional Campus of International Excellence “Campus Mare Nostrum”University of MurciaMurciaSpain
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Alnaimat F, Alduraidi H, Alhafez L, Abu Raddad L, Haddad BI, Hamdan M, Alajlouni J, Afifi FU. Rates, patterns, and predictors of complementary medicine use among patients with musculoskeletal diseases. PLoS One 2023; 18:e0287337. [PMID: 37352251 PMCID: PMC10289458 DOI: 10.1371/journal.pone.0287337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 06/03/2023] [Indexed: 06/25/2023] Open
Abstract
AIM To investigate the extent of complementary medicine (CM) use and the most common therapies utilized by Jordanian patients with musculoskeletal (MSK) diseases. METHODS A semi-structured questionnaire was used to conduct a cross-sectional survey of outpatient orthopedic and rheumatology patients at an academic medical center in Amman, Jordan between January and September 2020. RESULTS A convenience sample of 1001 patients was interviewed (82% females). Pearson's chi-square comparisons showed that nutritional CM was used by 43.4% of patients, while 29.8% used physical CM, and 16% used both. Almost all used the nutritional or physical CM in addition to their prescribed treatment. Nutritional form use was significantly higher among females, older age groups, married people, and those who worked (p < .05). Physical form use was statistically more prevalent in older age groups and those with a higher level of education (p < .05). Family income and urban residence were not significantly associated with the use of either form of CM therapy. Olive oil was the most frequently reported nutritional type (22.9%), and cupping was the most reported physical type (41.6%). Recommendations to use CM came primarily from family members or friends (64% of nutritional CM users and 59% of physical CM users). A physician or pharmacist was cited more frequently with physical CM (24% versus 8% for the nutritional form). In contrast, media sources were cited more for nutritional than physical form (28% versus 7%). Over half of the patients believed they received the desired effect from CM. Surprisingly, only 9.5% of the patients admitted to discussing their CM use with their physician. CONCLUSION CM use is prevalent among Jordanian patients with MSK disorders. Most patients rely on family and friends for recommendations, and they rarely inform their physician of the CM use. Physicians should routinely inquire about CM to provide patients with information regarding their benefits and risks.
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Affiliation(s)
- Fatima Alnaimat
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, University of Jordan, Amman, Jordan
| | - Hamza Alduraidi
- School of Nursing, The University of Jordan, Amman, Jordan
- Aqaba Medical Sciences University, Aqaba, Jordan
| | - Laila Alhafez
- School of Medicine, The University of Jordan, Amman, Jordan
| | | | - Bassem I. Haddad
- Division of Orthopedics, Department of Special Surgery, School of Medicine, University of Jordan, Amman, Jordan
| | - Mohammad Hamdan
- Division of Orthopedics, Department of Special Surgery, School of Medicine, University of Jordan, Amman, Jordan
| | - Jihad Alajlouni
- Division of Orthopedics, Department of Special Surgery, School of Medicine, University of Jordan, Amman, Jordan
| | - Fatma U. Afifi
- Department of Pharmaceutical Chemistry and Pharmacognosy, Applied Science Private University, Amman, Jordan
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Micheli L, Bertini L, Bonato A, Villanova N, Caruso C, Caruso M, Bernini R, Tirone F. Role of Hydroxytyrosol and Oleuropein in the Prevention of Aging and Related Disorders: Focus on Neurodegeneration, Skeletal Muscle Dysfunction and Gut Microbiota. Nutrients 2023; 15:1767. [PMID: 37049607 PMCID: PMC10096778 DOI: 10.3390/nu15071767] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/16/2023] [Accepted: 03/24/2023] [Indexed: 04/09/2023] Open
Abstract
Aging is a multi-faceted process caused by the accumulation of cellular damage over time, associated with a gradual reduction of physiological activities in cells and organs. This degeneration results in a reduced ability to adapt to homeostasis perturbations and an increased incidence of illnesses such as cognitive decline, neurodegenerative and cardiovascular diseases, cancer, diabetes, and skeletal muscle pathologies. Key features of aging include a chronic low-grade inflammation state and a decrease of the autophagic process. The Mediterranean diet has been associated with longevity and ability to counteract the onset of age-related disorders. Extra virgin olive oil, a fundamental component of this diet, contains bioactive polyphenolic compounds as hydroxytyrosol (HTyr) and oleuropein (OLE), known for their antioxidant, anti-inflammatory, and neuroprotective properties. This review is focused on brain, skeletal muscle, and gut microbiota, as these systems are known to interact at several levels. After the description of the chemistry and pharmacokinetics of HTyr and OLE, we summarize studies reporting their effects in in vivo and in vitro models of neurodegenerative diseases of the central/peripheral nervous system, adult neurogenesis and depression, senescence and lifespan, and age-related skeletal muscle disorders, as well as their impact on the composition of the gut microbiota.
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Affiliation(s)
- Laura Micheli
- Institute of Biochemistry and Cell Biology, National Research Council (IBBC-CNR), Via E. Ramarini 32, Monterotondo, 00015 Rome, Italy
| | - Laura Bertini
- Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell’Università, 01100 Viterbo, Italy
| | - Agnese Bonato
- Institute of Biochemistry and Cell Biology, National Research Council (IBBC-CNR), Via E. Ramarini 32, Monterotondo, 00015 Rome, Italy
| | - Noemi Villanova
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Via San Camillo de Lellis, 01100 Viterbo, Italy
| | - Carla Caruso
- Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell’Università, 01100 Viterbo, Italy
| | - Maurizia Caruso
- Institute of Biochemistry and Cell Biology, National Research Council (IBBC-CNR), Via E. Ramarini 32, Monterotondo, 00015 Rome, Italy
| | - Roberta Bernini
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Via San Camillo de Lellis, 01100 Viterbo, Italy
| | - Felice Tirone
- Institute of Biochemistry and Cell Biology, National Research Council (IBBC-CNR), Via E. Ramarini 32, Monterotondo, 00015 Rome, Italy
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Terracina S, Petrella C, Francati S, Lucarelli M, Barbato C, Minni A, Ralli M, Greco A, Tarani L, Fiore M, Ferraguti G. Antioxidant Intervention to Improve Cognition in the Aging Brain: The Example of Hydroxytyrosol and Resveratrol. Int J Mol Sci 2022; 23:15674. [PMID: 36555317 PMCID: PMC9778814 DOI: 10.3390/ijms232415674] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Both physiological and pathological aging processes induce brain alterations especially affecting the speed of processing, working memory, conceptual reasoning and executive functions. Many therapeutic approaches to reduce the impact of brain aging on cognitive functioning have been tested; unfortunately, there are no satisfactory results as a single therapy. As aging is partly contributed by free radical reactions, it has been proposed that exogenous antioxidants could have a positive impact on both aging and its associated manifestations. The aim of this report is to provide a summary and a subsequent review of the literature evidence on the role of antioxidants in preventing and improving cognition in the aging brain. Manipulation of endogenous cellular defense mechanisms through nutritional antioxidants or pharmacological compounds represents an innovative approach to therapeutic intervention in diseases causing brain tissue damage, such as neurodegeneration. Coherently with this notion, antioxidants, especially those derived from the Mediterranean diet such as hydroxytyrosol and resveratrol, seem to be able to delay and modulate the cognitive brain aging processes and decrease the occurrence of its effects on the brain. The potential preventive activity of antioxidants should be evaluated in long-term exposure clinical trials, using preparations with high bioavailability, able to bypass the blood-brain barrier limitation, and that are well standardized.
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Affiliation(s)
- Sergio Terracina
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Carla Petrella
- Institute of Biochemistry and Cell Biology, IBBC—CNR, 00185 Rome, Italy
| | - Silvia Francati
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Marco Lucarelli
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Christian Barbato
- Institute of Biochemistry and Cell Biology, IBBC—CNR, 00185 Rome, Italy
| | - Antonio Minni
- Department of Sense Organs, Sapienza University of Rome, 00185 Rome, Italy
| | - Massimo Ralli
- Department of Sense Organs, Sapienza University of Rome, 00185 Rome, Italy
| | - Antonio Greco
- Department of Sense Organs, Sapienza University of Rome, 00185 Rome, Italy
| | - Luigi Tarani
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology, IBBC—CNR, 00185 Rome, Italy
| | - Giampiero Ferraguti
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
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Rodríguez-Pérez MD, Pérez de Algaba I, Martín-Aurioles E, Arrebola MM, Ortega-Hombrados L, Verdugo C, Fernández-Prior MÁ, Bermúdez-Oria A, De La Cruz JP, González-Correa JA. Neuroprotective Effect of 3',4'-Dihydroxyphenylglycol in Type-1-like Diabetic Rats-Influence of the Hydroxytyrosol/3',4'-dihydroxyphenylglycol Ratio. Nutrients 2022; 14:nu14061146. [PMID: 35334801 PMCID: PMC8950825 DOI: 10.3390/nu14061146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 12/04/2022] Open
Abstract
The aim of this study was to assess the possible neuroprotective effect of 3′,4′-dihydroxyphenylglycol (DHPG), a polyphenol from extra virgin olive oil (EVOO), in an experimental model of diabetes and whether this effect is modified by the presence of another EVOO polyphenol, hydroxytyrosol (HT). The neuroprotective effect was assessed in a hypoxia–reoxygenation model in brain slices and by quantifying retinal nerve cells. The animals were distributed as follows: (1) normoglycemic rats (NDR), (2) diabetic rats (DR), (3) DR treated with HT (5 mg/kg/day p.o.), (4) DR treated with DHPG (0.5 mg/kg/day), or (5) with 1 mg/kg/day, (6) DR treated with HT plus DHPG 0.5 mg/kg/day, or (7) HT plus 1 mg/kg/day p.o. DHPG. Diabetic animals presented higher levels of oxidative stress variables and lower numbers of neuronal cells in retinal tissue. The administration of DHPG or HT reduced most of the oxidative stress variables and brain lactate dehydrogenase efflux (LDH) as an indirect index of cellular death and also reduced the loss of retinal cells. The association of DHPG+HT in the same proportions, as found in EVOO, improved the neuroprotective and antioxidant effects of both polyphenols.
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Affiliation(s)
- María Dolores Rodríguez-Pérez
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
| | | | | | | | - Laura Ortega-Hombrados
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
| | - Cristina Verdugo
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
| | - María África Fernández-Prior
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Seville, Spain; (M.Á.F.-P.); (A.B.-O.)
| | - Alejandra Bermúdez-Oria
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Seville, Spain; (M.Á.F.-P.); (A.B.-O.)
| | - José Pedro De La Cruz
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
- Correspondence: ; Tel.: +34-952131567
| | - José Antonio González-Correa
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
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Olive Tree Derivatives and Hydroxytyrosol: Their Potential Effects on Human Health and Its Use as Functional Ingredient in Meat. Foods 2021; 10:foods10112611. [PMID: 34828895 PMCID: PMC8618868 DOI: 10.3390/foods10112611] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 01/19/2023] Open
Abstract
Olive (Olea europaea) is one of the most extensive crops in the Mediterranean countries, and an important source of extra distinctive compounds that has been widely tested due to its known health benefits. Olive derivatives, such as extra virgin olive oil (EVOO) and olive leaves are rich in antioxidant compounds such as hydroxytyrosol (HXT) and oleuropein and oleic acid, as main monounsaturated fatty acid. Because of HXT molecular structure, its regular consumption reports important beneficial properties such as anti-inflammatory, antimicrobial, antioxidant, and anticancer. As a matter of fact, its antioxidant and antimicrobial effects made this compound a good preservative agent against meat deterioration and spoilage, capable of replacing some synthetic additives whose continued and regular consumption may negatively affect the human health. On the contrary side, this extract has an unpleasant odor and flavor, so a synthetic source of HXT could also be used to improve the sensory quality of the meat products. In this sense, this review exposes the health benefits provided by the consumption of EVOO and HXT, and the newest research about its application on meat, together new trends about its use as functional ingredient in meat and meat products.
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De La Cruz Cortés JP, Pérez de Algaba I, Martín-Aurioles E, Arrebola MM, Ortega-Hombrados L, Rodríguez-Pérez MD, Fernández-Prior MÁ, Bermúdez-Oria A, Verdugo C, González-Correa JA. Extra Virgin Oil Polyphenols Improve the Protective Effects of Hydroxytyrosol in an In Vitro Model of Hypoxia-Reoxygenation of Rat Brain. Brain Sci 2021; 11:brainsci11091133. [PMID: 34573155 PMCID: PMC8471209 DOI: 10.3390/brainsci11091133] [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: 07/22/2021] [Revised: 08/17/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022] Open
Abstract
Hydroxytyrosol (HT) is the component primarily responsible for the neuroprotective effect of extra virgin olive oil (EVOO). However, it is less effective on its own than the demonstrated neuroprotective effect of EVOO, and for this reason, it can be postulated that there is an interaction between several of the polyphenols of EVOO. The objective of the study was to assess the possible interaction of four EVOO polyphenols (HT, tyrosol, dihydroxyphenylglycol, and oleocanthal) in an experimental model of hypoxia-reoxygenation in rat brain slices. The lactate dehydrogenase (LDH) efflux, lipid peroxidation, and peroxynitrite production were determined as measures of cell death, oxidative stress, and nitrosative stress, respectively. First, the polyphenols were incubated with the brain slices in the same proportions that exist in EVOO, comparing their effects with those of HT. In all cases, the cytoprotective and antioxidant effects of the combination were greater than those of HT alone. Second, we calculated the concentration-effect curves for HT in the absence or presence of each polyphenol. Tyrosol did not significantly modify any of the variables inhibited by HT. Dihydroxyphenylglycol only increased the cytoprotective effect of HT at 10 µM, while it increased its antioxidant effect at 50 and 100 µM and its inhibitory effect on peroxynitrite formation at all the concentrations tested. Oleocanthal increased the cytoprotective and antioxidant effects of HT but did not modify its inhibitory effect on nitrosative stress. The results of this study show that the EVOO polyphenols DHPG and OLC increase the cytoprotective effect of HT in an experimental model of hypoxia-reoxygenation in rat brain slices, mainly due to a possibly synergistic effect on HT's antioxidant action. These results could explain the greater neuroprotective effect of EVOO than of the polyphenols alone.
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Affiliation(s)
- José Pedro De La Cruz Cortés
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga, 29010 Málaga, Spain; (L.O.-H.); (M.D.R.-P.); (C.V.); (J.A.G.-C.)
- Correspondence: ; Tel.: +34-952-131-567
| | | | | | | | - Laura Ortega-Hombrados
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga, 29010 Málaga, Spain; (L.O.-H.); (M.D.R.-P.); (C.V.); (J.A.G.-C.)
| | - María Dolores Rodríguez-Pérez
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga, 29010 Málaga, Spain; (L.O.-H.); (M.D.R.-P.); (C.V.); (J.A.G.-C.)
| | - María África Fernández-Prior
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Seville, Spain; (M.Á.F.-P.); (A.B.-O.)
| | - Alejandra Bermúdez-Oria
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Seville, Spain; (M.Á.F.-P.); (A.B.-O.)
| | - Cristina Verdugo
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga, 29010 Málaga, Spain; (L.O.-H.); (M.D.R.-P.); (C.V.); (J.A.G.-C.)
| | - José Antonio González-Correa
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga, 29010 Málaga, Spain; (L.O.-H.); (M.D.R.-P.); (C.V.); (J.A.G.-C.)
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Hydroxytyrosol Selectively Affects Non-Enzymatic Glycation in Human Insulin and Protects by AGEs Cytotoxicity. Antioxidants (Basel) 2021; 10:antiox10071127. [PMID: 34356360 PMCID: PMC8301023 DOI: 10.3390/antiox10071127] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 12/14/2022] Open
Abstract
Hydroxytyrosol (HT), the major phenolic compound in olive oil, is attracting increasing interest for its beneficial properties including a notable antioxidant and anti-inflammatory power. In this study, using a combination of biophysical and cell biology techniques, we have tested the role of HT in the formation of advanced glycation end-products (AGEs). AGEs have a key role in clinical sciences as they have been associated to diabetes, neurodegenerative and cardiovascular diseases. In addition, as the incidence of Alzheimer’s disease (AD) is strongly increased in diabetic patients, AGE formation is supposed to be involved in the development of the pathological hallmarks of AD. Our data show that HT selectively inhibits protein glycation reaction in human insulin, and it is able to counteract the AGE-induced cytotoxicity in human neurotypical cells by acting on SIRT1 level and oxidative stress, as well as on inflammatory response. This study identifies new beneficial properties for HT and suggests it might be a promising molecule in protecting against the AGE-induced toxicity, a key mechanism underlying the development and progression of neurodegenerative disorders.
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Polyphenols and IUGR Pregnancies: Effects of the Antioxidant Hydroxytyrosol on Brain Neurochemistry and Development in a Porcine Model. Antioxidants (Basel) 2021; 10:antiox10060884. [PMID: 34073097 PMCID: PMC8227239 DOI: 10.3390/antiox10060884] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/19/2021] [Accepted: 05/22/2021] [Indexed: 12/30/2022] Open
Abstract
Supplementation of a mother’s diet with antioxidants, such as hydroxytyrosol (HTX), has been proposed to ameliorate the adverse phenotypes of fetuses at risk of intrauterine growth restriction. In the present study, sows were treated daily with or without 1.5 mg of HTX per kilogram of feed from day 35 of pregnancy (at 30% of total gestational period), and individuals were sampled at three different ages: 100-day-old fetuses and 1-month- and 6-month-old piglets. After euthanasia, the brain was removed and the hippocampus, amygdala, and prefrontal cortex were dissected. The profile of the catecholaminergic and serotoninergic neurotransmitters (NTs) was characterized and an immunohistochemical study of the hippocampus was performed. The results indicated that maternal supplementation with HTX during pregnancy affected the NT profile in a brain-area-dependant mode and it modified the process of neuron differentiation in the hippocampal CA1 and GD areas, indicating that cell differentiation occurred more rapidly in the HTX group. These effects were specific to the fetal period, concomitantly with HTX maternal supplementation, since no major differences remained between the control and treated groups in 1-month- and 6-month-old pigs.
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Innovative Natural Functional Ingredients from Olive and Citrus Extracts in Spanish-Type Dry-Cured Sausage "Fuet". Antioxidants (Basel) 2021; 10:antiox10020180. [PMID: 33513815 PMCID: PMC7911453 DOI: 10.3390/antiox10020180] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/21/2021] [Accepted: 01/23/2021] [Indexed: 11/17/2022] Open
Abstract
The main objective of the present study was to evaluate the antioxidant capacity of hydroxytyrosol derived from synthetic (HTs) and organic (HTo) sources, and citrus (C) extract, by incorporating them in a dry-cured meat product: fuet. Firstly, antioxidant extracts were tested in an oxidized pork meat model system, avoiding by 100% the protein oxidation against AAPH and AMVN. After that, four batches of fuet were made, namely Control, HTs, HTo, and C, which incorporated antioxidant extracts as substitutes of synthetic additives. A hundred-day shelf-life study was carried out. The incorporation of phenolic extracts neither affected proximal composition, nor ripening process (airing losses, aw, and pH), nor color development. However, the incorporation of HT increased Fe, Mn, and Si mineral content. At the same time, HT extracts inhibited lipid and protein oxidation and microbiological growth by 50%. Regarding sensory analysis, HTo was the most unpalatable (extract flavor apparition), while HTs and C samples were equally accepted as the Control sample. In addition, HT fuet samples showed two-fold higher antioxidant activity and total phenolic content than the Control sample. In conclusion, the use of HTs in dry-cured sausages was demonstrated to be the best option to the development of clean label meat products, with promising antioxidant properties and the best standards of quality and acceptability.
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Kucukgul A, Isgor MM, Duzguner V, Atabay MN, Kucukgul A. Antioxidant Effects of Oleuropein on Hydrogen Peroxide-Induced Neuronal Stress- An In Vitro Study. Antiinflamm Antiallergy Agents Med Chem 2020; 19:74-84. [PMID: 30714532 PMCID: PMC7403681 DOI: 10.2174/1871523018666190201145824] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/23/2019] [Accepted: 01/25/2019] [Indexed: 11/22/2022]
Abstract
Background
Persistent oxidative stress can lead to chronic inflammation and mediate most chronic diseases including neurological disorders. Oleuropein has been shown to be a potent antioxidant molecule in olive oil leaf having antioxidative properties. Objective
The aim of this study was to investigate the protective effects of oleuropein against oxidative stress in human glioblastoma cells. Methods
Human glioblastoma cells (U87) were pretreated with oleuropein (OP) essential oil 10 µM. After 30 minutes, 100 µM H2O2 was added to the cells for three hours. Cell survival was quantified by colorimetric MTT assay. Glutathione level, total oxidant capacity, total antioxidant capacity and nitric oxide levels were determined by using specific spectrophotometric methods. The relative gene expression level of iNOS was performed by qRT-PCR method. Results
According to viability results, the effective concentration of H2O2 (100µM) significantly decreased cell viability and oleuropein pretreatment significantly prevented the cell losses. Oleuropein regenerated total antioxidant capacity and glutathione levels decreased by H2O2 exposure. In addition, nitric oxide and total oxidant capacity levels were also decreased after administration of oleuropein in treated cells. Conclusion
Oleuropein was found to have potent antioxidative properties in human glioblastoma cells. However, further studies and validations are needed in order to understand the exact neuroprotective mechanism of oleuropein.
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Affiliation(s)
- Altug Kucukgul
- Department of Biochemistry, Faculty of Veterinary, Mustafa Kemal University, Hatay, Turkey
| | - Mehmet M Isgor
- Department of Biochemistry, Faculty of Veterinary, Mustafa Kemal University, Hatay, Turkey
| | - Vesile Duzguner
- Department of Nursery, High School of Health Sciences, Ardahan University, Ardahan, Turkey
| | - Meryem N Atabay
- Department of Biochemistry, Faculty of Veterinary, Mustafa Kemal University, Hatay, Turkey
| | - Azime Kucukgul
- Department of Aquaculture, Faculty of Fisheries, Munzur University, Tunceli, Turkey
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Ma J, Wang C, Sun Y, Pang L, Zhu S, Liu Y, Zhu L, Zhang S, Wang L, Du L. Comparative study of oral and intranasal puerarin for prevention of brain injury induced by acute high-altitude hypoxia. Int J Pharm 2020; 591:120002. [PMID: 33141084 DOI: 10.1016/j.ijpharm.2020.120002] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/12/2020] [Accepted: 10/18/2020] [Indexed: 12/18/2022]
Abstract
Human activities in the areas of high altitude have increased significantly recently. Brain is highly sensitive to changing of oxygen pressure due to high altitude, and this physiological response may lead to serious brain injury, such as learning and memory disabilities. Puerarin is a phytoestrogen with many pharmacological activities, such as treatment of neurological disorders. However, most of current drugs can not easily enter brain through the blood-brain barrier (BBB). The nose-to-brain route can bypass BBB for brain-targeting. Here, thermosensitive in situ hydrogels (TISGs) of puerarin were prepared with poloxamers 407, poloxamers 188 and propylene glycol to improve bioavailability and brain targeting. In vitro drug release in simulated nasal fluids, rheological properties and cilia toxicity of puerarin TISGs were explored. The pharmacodynamics and pharmacokinetics of puerarin by intranasal (i.n.) and oral (p.o.) administrations were also evaluated. The viscosity of puerarin TISGs tended to increase obviously with increased temperature. The puerarin release profile and transmucosal process of puerarin TISGs could be described with the first-order kinetics equation, depending on drug diffusion. The cilia toxicity of puerarin TISGs was not obvious. Rat models of hypobarism/hypoxia-induced brain injury were established with a hypobaric simulation chamber. Morris water maze and open filed tests indicated that puerarin TISGs improved the spatial memory and spontaneous exploratory behavior of the rats suffering from hypoxia-induced brain injury. Furthermore, puerarin TISGs decreased the level of oxidative stress cytokines (malondialdehyde (MDA) and glutathione (GSH)) in the peripheral circulation, alleviated the cerebral histological lesions, and relieved the expression of hypoxia-inducible factor-1α (HIF-1α). Intranasal puerarin TISGs were absorbed quickly with a shorter Tmax (10.0 ± 5.7 min) compared to that of oral puerarin (36 ± 13.4 min). In addition, the relative bioavailability of i.n. puerarin TISGs was high to 300% compared to oral administration of puerarin. The area under the curve (AUC) of brain after i.n. administration of puerarin TISGs was 954.5 ± 335.1 h.ng/mL, while no puerarin was detected in the brain after oral administration. Therefore, i.n. puerarin TISGs led to excellent brain targeting effect. Puerarin TISGs are an effective neuroprotector formulation for prevention of brain injury induced by acute high-altitude hypoxia.
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Affiliation(s)
- Jinqiu Ma
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Chenyun Wang
- Chinese PLA General Hospital, Beijing 100853, China
| | - Yunbo Sun
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lulu Pang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Siqing Zhu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yijing Liu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Lin Zhu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Shouguo Zhang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lin Wang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Lina Du
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
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15
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Synthetic vs. Natural Hydroxytyrosol for Clean Label Lamb Burgers. Antioxidants (Basel) 2020; 9:antiox9090851. [PMID: 32927869 PMCID: PMC7555821 DOI: 10.3390/antiox9090851] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 01/16/2023] Open
Abstract
Clean labelling refers to consumers' desire for manufacturers to be more transparent in the way their products are made and sourced. Natural antioxidants (spices, herbs, fruits, or vegetables) have been proven to offer the same functionality as their synthetic counterparts, with the advantage of being label friendly and process compatible, maintaining meat quality and reducing food waste. Lamb meat has the challenges to have an intense flavour and fat composition to test the effectiveness of some of these natural antioxidants like hydroxytyrosol (HXT). The current paper was designed to test both natural (HXTo) and synthetic (HXTs) antioxidants using four lamb patty batches: one Control (C) (which included sulphites); a reference (R) sample (14.6% carnosic acid and 6% carnosol from natural rosemary extracts, 200 ppm); a sample containing synthetic hydroxytyrosol (HXTs, 99% purity, 200 ppm); and a sample with added organic hydroxytyrosol (HXTo, sample 7% purity from olive tree leaves, 200 ppm). A shelf-life study was carried out for 6 days at 4 °C, testing proximal composition and mineral bioavailability, pH changes, colour (by CIELab), total antioxidant capacity (TAC by oxygen radical absorbance capacity (ORAC)), lipid and protein oxidation (thiobarbituric acid reactive substances (TBARs) and thiol loss, respectively), volatile compound profiles (by HPC-MS), sensory evaluation, and microbiological growth (as total vial count (TVC) and total coliform count (TCC)). Results revealed that lamb burgers with added HXTs had better-preserved raw lamb meat in the test conditions, with reduced colour losses, lipid oxidation, and release of volatile compounds, the half the microbiological growth (TVC) of the Control, the best TAC, and significantly increased (p < 0.05) minerals bioavailability, while maintaining sensory acceptability. In summary, natural antioxidants are an adequate strategy for lamb meat burgers. Regarding HXTo, obtained from olives, the synthetic analogue is even more effective in terms of preservative and antioxidant activity, and in maintaining the nutritional value, sensory characteristics, and safety of food products.
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Calahorra J, Shenk J, Wielenga VH, Verweij V, Geenen B, Dederen PJ, Peinado MÁ, Siles E, Wiesmann M, Kiliaan AJ. Hydroxytyrosol, the Major Phenolic Compound of Olive Oil, as an Acute Therapeutic Strategy after Ischemic Stroke. Nutrients 2019; 11:E2430. [PMID: 31614692 PMCID: PMC6836045 DOI: 10.3390/nu11102430] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 12/17/2022] Open
Abstract
Stroke is one of the leading causes of adult disability worldwide. After ischemic stroke, damaged tissue surrounding the irreversibly damaged core of the infarct, the penumbra, is still salvageable and is therefore a target for acute therapeutic strategies. The Mediterranean diet (MD) has been shown to lower stroke risk. MD is characterized by increased intake of extra-virgin olive oil, of which hydroxytyrosol (HT) is the foremost phenolic component. This study investigates the effect of an HT-enriched diet directly after stroke on regaining motor and cognitive functioning, MRI parameters, neuroinflammation, and neurogenesis. Stroke mice on an HT diet showed increased strength in the forepaws, as well as improved short-term recognition memory probably due to improvement in functional connectivity (FC). Moreover, mice on an HT diet showed increased cerebral blood flow (CBF) and also heightened expression of brain derived neurotrophic factor (Bdnf), indicating a novel neurogenic potential of HT. This result was additionally accompanied by an enhanced transcription of the postsynaptic marker postsynaptic density protein 95 (Psd-95) and by a decreased ionized calcium-binding adapter molecule 1 (IBA-1) level indicative of lower neuroinflammation. These results suggest that an HT-enriched diet could serve as a beneficial therapeutic approach to attenuate ischemic stroke-associated damage.
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Affiliation(s)
- Jesús Calahorra
- Department of Experimental Biology, University of Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain.
| | - Justin Shenk
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
| | - Vera H Wielenga
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
| | - Vivienne Verweij
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
| | - Bram Geenen
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
| | - Pieter J Dederen
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
| | - M Ángeles Peinado
- Department of Experimental Biology, University of Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain.
| | - Eva Siles
- Department of Experimental Biology, University of Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain.
| | - Maximilian Wiesmann
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
| | - Amanda J Kiliaan
- Radboud University Medical Center, Donders Institute for Brain, Cognition & Behaviour, Radboud Alzheimer Center, Department of Anatomy, Preclinical Imaging Centre PRIME, 6500 HB Nijmegen, The Netherlands.
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17
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Protective Effects Induced by Two Polyphenolic Liquid Complexes from Olive ( Olea europaea, mainly Cultivar Coratina) Pressing Juice in Rat Isolated Tissues Challenged with LPS. Molecules 2019; 24:molecules24163002. [PMID: 31430921 PMCID: PMC6720671 DOI: 10.3390/molecules24163002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/11/2019] [Accepted: 08/15/2019] [Indexed: 12/21/2022] Open
Abstract
MOMAST(®) HY100 and MOMAST(®) HP30 are polyphenolic liquid complexes from olive pressing juice with a total polyphenolic content of 100 g/kg (at least 50% as hydroxytyrosol) and 36 g/kg (at least 30% as hydroxytyrosol), respectively. We investigated the potential protective role of MOMAST(®) HY100 and MOMAST(®) HP30 on isolated rat colon, liver, heart, and prefrontal cortex specimens treated with Escherichia coli lipopolysaccharide (LPS), a validated ex vivo model of inflammation, by measuring the production of prostaglandin (PG)E2, 8-iso-PGF2α, lactate dehydrogenase (LDH), as well as cyclooxygenase (COX)-2, tumor necrosis factor α (TNFα), and inducible nitric oxide synthase (iNOS) mRNA levels. MOMAST(®) HY100 decreased LPS-stimulated PGE2 and LDH levels in all tested tissues. Following treatment with MOMAST(®) HY100, we found a significant reduction in iNOS levels in prefrontal cortex and heart specimens, COX-2 and TNFα mRNA levels in heart specimens, and 8-iso-PGF2α levels in liver specimens. On the other hand, MOMAST(®) HP30 was found to blunt COX-2, TNFα, and iNOS mRNA levels, as well as 8-iso-PGF2α in cortex, liver, and colon specimens. MOMAST(®) HP30 was also found to decrease PGE2 levels in liver specimens, while it decreased iNOS mRNA, LDH, and 8-iso-PGF2α levels in heart specimens. Both MOMAST(®) HY100 and MOMAST(®) HP30 exhibited protective effects on multiple inflammatory and oxidative stress pathways.
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18
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Effects of Long-Term Treatment with a Blend of Highly Purified Olive Secoiridoids on Cognition and Brain ATP Levels in Aged NMRI Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4070935. [PMID: 30510619 PMCID: PMC6232801 DOI: 10.1155/2018/4070935] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 08/23/2018] [Accepted: 09/18/2018] [Indexed: 01/06/2023]
Abstract
Aging represents a major risk factor for developing neurodegenerative diseases such as Alzheimer's disease (AD). As components of the Mediterranean diet, olive polyphenols may play a crucial role in the prevention of AD. Since mitochondrial dysfunction acts as a final pathway in both brain aging and AD, respectively, the effects of a mixture of highly purified olive secoiridoids were tested on cognition and ATP levels in a commonly used mouse model for brain aging. Over 6 months, female NMRI mice (12 months of age) were fed with a blend containing highly purified olive secoiridoids (POS) including oleuropein, hydroxytyrosol and oleurosid standardized for 50 mg oleuropein/kg diet (equivalent to 13.75 mg POS/kg b.w.) or the study diet without POS as control. Mice aged 3 months served as young controls. Behavioral tests showed deficits in cognition in aged mice. Levels of ATP and mRNA levels of NADH-reductase, cytochrome-c-oxidase, and citrate synthase were significantly reduced in the brains of aged mice indicating mitochondrial dysfunction. Moreover, gene expression of Sirt1, CREB, Gap43, and GPx-1 was significantly reduced in the brain tissue of aged mice. POS-fed mice showed improved spatial working memory. Furthermore, POS restored brain ATP levels in aged mice which were significantly increased. Our results show that a diet rich in purified olive polyphenols has positive long-term effects on cognition and energy metabolism in the brain of aged mice.
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19
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Jeon S, Choi M. Anti-inflammatory and anti-aging effects of hydroxytyrosol on human dermal fibroblasts (HDFs). BIOMEDICAL DERMATOLOGY 2018. [DOI: 10.1186/s41702-018-0031-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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Wani TA, Masoodi F, Gani A, Baba WN, Rahmanian N, Akhter R, Wani IA, Ahmad M. Olive oil and its principal bioactive compound: Hydroxytyrosol – A review of the recent literature. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.05.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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González-Correa JA, Rodríguez-Pérez MD, Márquez-Estrada L, López-Villodres JA, Reyes JJ, Rodriguez-Gutierrez G, Fernández-Bolaños J, De La Cruz JP. Neuroprotective Effect of Hydroxytyrosol in Experimental Diabetic Retinopathy: Relationship with Cardiovascular Biomarkers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:637-644. [PMID: 29278909 DOI: 10.1021/acs.jafc.7b05063] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The aim of the study was to test the neuroprotective effect of hydroxytyrosol (HT) on experimental diabetic retinopathy. Animals were divided in four groups: (1) control nondiabetic rats, (2) streptozotocin-diabetic rats (DR), (3) DR treated with 1 mg/kg/day p.o. HT, and (4) DR treated with 5 mg/kg/day p.o. HT. Treatment with HT was started 7 days before inducing diabetes and was maintained for 2 months. In the DR group, total area occupied by extracellular matrix was increased, area occupied by retinal cells was decreased; both returned to near-control values in DR rats treated with HT. The number of retinal ganglion cells in DR was significantly lower (44%) than in the control group, and this decrease was smaller after HT treatment (34% and 9.1%). Linear regression analysis showed that prostacyclin, platelet aggregation, peroxynitrites, and the dose of 5 mg/kg/day HT significantly influenced retinal ganglion cell count. In conclusion, HT exerted a neuroprotective effect on diabetic retinopathy, and this effect correlated significantly with changes in some cardiovascular biomarkers.
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Affiliation(s)
- José Antonio González-Correa
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , 29016 Málaga, Spain
| | - María Dolores Rodríguez-Pérez
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , 29016 Málaga, Spain
| | - Lucía Márquez-Estrada
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , 29016 Málaga, Spain
| | - Juan Antonio López-Villodres
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , 29016 Málaga, Spain
| | - José Julio Reyes
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , 29016 Málaga, Spain
| | - Guillermo Rodriguez-Gutierrez
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de la Grasa , Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Sevilla, Spain
| | - Juan Fernández-Bolaños
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de la Grasa , Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Sevilla, Spain
| | - José Pedro De La Cruz
- Departmento de Farmacología, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , 29016 Málaga, Spain
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Martínez L, Ros G, Nieto G. Hydroxytyrosol: Health Benefits and Use as Functional Ingredient in Meat. MEDICINES (BASEL, SWITZERLAND) 2018; 5:E13. [PMID: 29360770 PMCID: PMC5874578 DOI: 10.3390/medicines5010013] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 02/01/2023]
Abstract
Hydroxytyrosol (HXT) is a phenolic compound drawn from the olive tree and its leaves as a by-product obtained from the manufacturing of olive oil. It is considered the most powerful antioxidant compound after gallic acid and one of the most powerful antioxidant compounds between phenolic compounds from olive tree followed by oleuropein, caffeic and tyrosol. Due to its molecular structure, its regular consumption has several beneficial effects such as antioxidant, anti-inflammatory, anticancer, and as a protector of skin and eyes, etc. For these reasons, the use of HXT extract is a good strategy for use in meat products to replace synthetics additives. However, this extract has a strong odour and flavour, so it is necessary to previously treat this compound in order to not alter the organoleptic quality of the meat product when is added as ingredient. The present review exposes the health benefits provided by HXT consumption and the latest research about its use on meat. In addition, new trends about the application of HXT in the list of ingredients of healthier meat products will be discussed.
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Affiliation(s)
- Lorena Martínez
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" (Economy based on agri-food), Campus de Espinardo, 30100 Espinardo, Murcia, Spain.
| | - Gaspar Ros
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" (Economy based on agri-food), Campus de Espinardo, 30100 Espinardo, Murcia, Spain.
| | - Gema Nieto
- Department of Food Technology, Nutrition and Food Science, Veterinary Faculty University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" (Economy based on agri-food), Campus de Espinardo, 30100 Espinardo, Murcia, Spain.
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23
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Lombardo L, Grasso F, Lanciano F, Loria S, Monetti E. Broad-Spectrum Health Protection of Extra Virgin Olive Oil Compounds. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/b978-0-444-64057-4.00002-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
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24
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Nieto-Domínguez M, de Eugenio LI, Peñalver P, Belmonte-Reche E, Morales JC, Poveda A, Jiménez-Barbero J, Prieto A, Plou FJ, Martínez MJ. Enzymatic Synthesis of a Novel Neuroprotective Hydroxytyrosyl Glycoside. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10526-10533. [PMID: 29119794 DOI: 10.1021/acs.jafc.7b04176] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The eco-friendly synthesis of non-natural glycosides from different phenolic antioxidants was carried out using a fungal β-xylosidase to evaluate changes in their bioactivities. Xylosides from hydroquinone and catechol were successfully formed, although the best results were obtained for hydroxytyrosol, the main antioxidant from olive oil. The formation of the new products was followed by thin-layer chromatography, liquid chromatography, and mass spectrometry. The hydroxytyrosyl xyloside was analyzed in more detail, to maximize its production and evaluate the effect of glycosylation on some hydroxytyrosol properties. The synthesis was optimized up to the highest production reported for a hydroxytyrosyl glycoside. The structure of this compound was solved by two-dimensional nuclear magnetic resonance and identified as 3,4-dihydroxyphenyl-ethyl-O-β-d-xylopyranoside. Evaluation of its biological effect showed an enhancement of both its neuroprotective capacity and its ability to ameliorate intracellular levels of reactive oxygen species.
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Affiliation(s)
- Manuel Nieto-Domínguez
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC) , Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Laura I de Eugenio
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC) , Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Pablo Peñalver
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC) , Parque Tecnológico de Ciencias de la Salud, Avenida del Conocimiento s/n, 18016 Armilla, Granada, Spain
| | - Efres Belmonte-Reche
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC) , Parque Tecnológico de Ciencias de la Salud, Avenida del Conocimiento s/n, 18016 Armilla, Granada, Spain
| | - Juan Carlos Morales
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC) , Parque Tecnológico de Ciencias de la Salud, Avenida del Conocimiento s/n, 18016 Armilla, Granada, Spain
| | - Ana Poveda
- Center for Cooperative Research in Biosciences , Parque Científico Tecnológico de Bizkaia Building 801A, 48160 Derio, Biscay, Spain
| | - Jesús Jiménez-Barbero
- Center for Cooperative Research in Biosciences , Parque Científico Tecnológico de Bizkaia Building 801A, 48160 Derio, Biscay, Spain
| | - Alicia Prieto
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC) , Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Francisco J Plou
- Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas (CSIC) , Marie Curie 2, 28049 Madrid, Spain
| | - María Jesús Martínez
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC) , Ramiro de Maeztu 9, 28040 Madrid, Spain
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Therapeutic Effects of Olive and Its Derivatives on Osteoarthritis: From Bench to Bedside. Nutrients 2017; 9:nu9101060. [PMID: 28954409 PMCID: PMC5691677 DOI: 10.3390/nu9101060] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/11/2017] [Accepted: 09/20/2017] [Indexed: 01/11/2023] Open
Abstract
Osteoarthritis is a major cause of morbidity among the elderly worldwide. It is a disease characterized by localized inflammation of the joint and destruction of cartilage, leading to loss of function. Impaired chondrocyte repair mechanisms, due to inflammation, oxidative stress and autophagy, play important roles in the pathogenesis of osteoarthritis. Olive and its derivatives, which possess anti-inflammatory, antioxidant and autophagy-enhancing activities, are suitable candidates for therapeutic interventions for osteoarthritis. This review aimed to summarize the current evidence on the effects of olive and its derivatives, on osteoarthritis and chondrocytes. The literature on animal and human studies has demonstrated a beneficial effect of olive and its derivatives on the progression of osteoarthritis. In vitro studies have suggested that the augmentation of autophagy (though sirtuin-1) and suppression of inflammation by olive polyphenols could contribute to the chondroprotective effects of olive polyphenols. More research and well-planned clinical trials are required to justify the use of olive-based treatment in osteoarthritis.
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Reyes JJ, Villanueva B, López-Villodres JA, De La Cruz JP, Romero L, Rodríguez-Pérez MD, Rodriguez-Gutierrez G, Fernández-Bolaños J, González-Correa JA. Neuroprotective Effect of Hydroxytyrosol in Experimental Diabetes Mellitus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4378-4383. [PMID: 27700078 DOI: 10.1021/acs.jafc.6b02945] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The aim of the study was to analyze the possible neuroprotective effect of hydroxytyrosol (HT) in diabetic animals in a model of hypoxia-reoxygenation. Rats (10 animals/group) were distributed in five groups: nondiabetic rats, control diabetic rats (DR), and DR rats treated for 2 months with 1, 5, or 10 mg/kg/day po HT. At the end of follow-up, an experimental model of hypoxia-reoxygenation in brain slices was tested. The DR group showed increased cell death, oxidative and nitrosative stress, and an increase in brain inflammatory mediators. These alterations were significantly greater in DR than in normoglycemic animals. HT significantly reduced oxidative (38.5-52.4% lipid peroxidation) and nitrosative stress (48.0-51.0% nitric oxide and 43.9-75.2% peroxynitrite concentration) and brain inflammatory mediators (18.6-40.6% prostaglandin E2 and 17.0-65.0% interleukin 1β concentration). Cell death was reduced by 25.9, 37.5, and 41.0% after the administration of 1, 5, or 10 mg/kg/day. The administration of HT in rats with experimental diabetes thus had a neuroprotective effect.
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Affiliation(s)
- José Julio Reyes
- Departmento de Farmacologı́a, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , Campus de Teatinos s/n, 29071Málaga, Spain
| | - Beatriz Villanueva
- Universidad Metropolitana de Puerto Rico (UMET) , San Juan PR 00926-2602, Puerto Rico
| | - Juan Antonio López-Villodres
- Departmento de Farmacologı́a, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , Campus de Teatinos s/n, 29071Málaga, Spain
| | - José Pedro De La Cruz
- Departmento de Farmacologı́a, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , Campus de Teatinos s/n, 29071Málaga, Spain
| | - Lidia Romero
- Departmento de Farmacologı́a, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , Campus de Teatinos s/n, 29071Málaga, Spain
| | - María Dolores Rodríguez-Pérez
- Departmento de Farmacologı́a, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , Campus de Teatinos s/n, 29071Málaga, Spain
| | - Guillermo Rodriguez-Gutierrez
- Instituto de la Grasa, Consejo Superior de Investigaciones Cientı́ficas (CSIC) , Campus Universitario Pablo de Olavide, Ctra. Utrera Km 1, Edificio 46, 41013 Seville, Spain
| | - Juan Fernández-Bolaños
- Instituto de la Grasa, Consejo Superior de Investigaciones Cientı́ficas (CSIC) , Campus Universitario Pablo de Olavide, Ctra. Utrera Km 1, Edificio 46, 41013 Seville, Spain
| | - José Antonio González-Correa
- Departmento de Farmacologı́a, Facultad de Medicina, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga , Campus de Teatinos s/n, 29071Málaga, Spain
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The LC–MS-based metabolomics of hydroxytyrosol administration in rats reveals amelioration of the metabolic syndrome. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1041-1042:45-59. [DOI: 10.1016/j.jchromb.2016.12.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 12/11/2016] [Accepted: 12/14/2016] [Indexed: 01/31/2023]
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Protective Effect of Hydroxytyrosol Against Cardiac Remodeling After Isoproterenol-Induced Myocardial Infarction in Rat. Cardiovasc Toxicol 2016; 16:147-55. [PMID: 25846342 DOI: 10.1007/s12012-015-9323-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The present study aimed to investigate the cardioprotective effect of hydroxytyrosol (HT) against isoproterenol-induced myocardial infarction in rats. Male rats were randomly divided into four groups, control, isoproterenol (Isop) and pretreated animals with HT in two different doses (2 and 5 mg/kg) orally for 7 days and intoxicated with isoproterenol (Isop + HT1) and (Isop + HT2) groups. Myocardial infarction in rats was induced subcutaneously by isoproterenol (100 mg/kg, s.c.) at an interval of 24 h on 6th and 7th day. On 8th day, electrocardiographic (ECG) pattern, gravimetric and biochemical parameters were assessed. Isoproterenol exhibited changes in ECG pattern, including significant ST-segment elevation and increase in the serum troponin-T level by 317 % as compared to control rats. Moreover, cardiac injury markers (creatine kinase-MB, lactate dehydrogenase, alanine aminotransferase) underwent a notable rise in serum of infarcted animals. Else, a disturbance in lipids profile and significant increase in lipase and angiotensin-converting enzyme (ACE) activities and heart weight ratio were observed in isoproterenol group. However, pre- and co-treatment with HT (2 and 5 mg/kg) improved the myocardium injury, restored the hemodynamic function and inhibited the ACE activity that prevent cardiac hypertrophy and remodeling. Overall, these findings demonstrated that HT exerted a potent cardioprotective effect against isoproterenol-induced myocardial infarction.
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Martínez-Lara E, Peña A, Calahorra J, Cañuelo A, Siles E. Hydroxytyrosol decreases the oxidative and nitrosative stress levels and promotes angiogenesis through HIF-1 independent mechanisms in renal hypoxic cells. Food Funct 2016; 7:540-8. [PMID: 26608793 DOI: 10.1039/c5fo00928f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In the kidney, tissue oxygen tension is comparatively low and this renders this organ more prone to hypoxic injury. In fact, hypoxia has a central role in the development and progression of renal disease. The recovery from this situation is dependent on the degree to which sublethally damaged cells restore normal function. The master regulator of the hypoxic response is hypoxia-inducible factor-1 (HIF-1). HIF-1 activity depends on the HIF-1α subunit level which is regulated by oxygen, nitric oxide (NO), reactive oxygen species and mTOR. Given the antioxidant and antinitrosative properties ascribed to hydroxytyrosol (HT), this study evaluates the impact of this olive oil polyphenol on the response to hypoxia in kidney cells. For this purpose, the human embryonic kidney HEK293T cell line was treated with HT and cultured under sublethal hypoxic conditions. Our results demonstrate that HT treatment decreases both, post-hypoxic reactive oxygen species and NO levels and, consequently, HIF-1α accumulation. However, HT does not affect mTOR activation or the factor inhibiting HIF level but promotes the expression of angiogenic proteins, suggesting that HT activates an adaptive response to hypoxia in a HIF-1α-independent pathway. In fact, this effect could be ascribed to the up-regulation of estrogen-related receptor α. In conclusion, our results suggest that in renal hypoxia, HT treatment might act as an effective preventive therapeutic approach to decrease stress and to improve the adaptive response to this pathological situation.
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Affiliation(s)
- Esther Martínez-Lara
- Department of Experimental Biology, University of Jaén, Paraje Las Lagunillas s/n, 23071-Jaén, Spain.
| | - Ana Peña
- Department of Experimental Biology, University of Jaén, Paraje Las Lagunillas s/n, 23071-Jaén, Spain.
| | - Jesús Calahorra
- Department of Experimental Biology, University of Jaén, Paraje Las Lagunillas s/n, 23071-Jaén, Spain.
| | - Ana Cañuelo
- Department of Experimental Biology, University of Jaén, Paraje Las Lagunillas s/n, 23071-Jaén, Spain.
| | - Eva Siles
- Department of Experimental Biology, University of Jaén, Paraje Las Lagunillas s/n, 23071-Jaén, Spain.
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Peng Y, Hou C, Yang Z, Li C, Jia L, Liu J, Tang Y, Shi L, Li Y, Long J, Liu J. Hydroxytyrosol mildly improve cognitive function independent of APP processing in APP/PS1 mice. Mol Nutr Food Res 2016; 60:2331-2342. [PMID: 27287957 DOI: 10.1002/mnfr.201600332] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/24/2016] [Accepted: 05/31/2016] [Indexed: 11/06/2022]
Abstract
SCOPE Olive products, the hallmark of Mediterranean diet, are associated with reduced risk of mild cognitive impairment and Alzheimer's disease (AD). We and other groups have shown that hydroxytyrosol (HT), a bioactive compound of olive products, ameliorates oxidative stress, mitochondrial dysfunction, and neural toxicity. However, whether HT in Mediterranean diet acts as a functional ingredient in delaying AD pathogenesis remains unclear. METHODS AND RESULTS In the present study, APP/PS1 mice, an animal model of AD, were administrated for 6 months with 5 mg/kg/day of HT, a comparable level of HT in daily Mediterranean diet. HT improved electroencephalography activity and marginally benefited cognitive behavior of transgenic mice. In addition, HT treatment ameliorated mitochondrial dysfunction, reduced mitochondrial carbonyl protein, enhanced superoxide dismutase 2 expression, reversed the phase 2 enzyme system and reduced the levels of brain inflammatory markers, but had no effect on brain β-amyloid (Aβ) accumulation in APP/PS1 mice. CONCLUSIONS These results suggest that HT may represent as a functional ingredient in Mediterranean diet in ameliorating AD-involved neuronal impairment via modulating mitochondrial oxidative stress, neuronal inflammation, and apoptosis without affecting APP processing.
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Affiliation(s)
- Yunhua Peng
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Chen Hou
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Ziqi Yang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Caixia Li
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Liyan Jia
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Jing Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Ying Tang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Le Shi
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Yongqin Li
- School of Biomedical engineering, Third Military Medical University, Chongqing, China
| | - Jiangang Long
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Jiankang Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Zhong YW, Wu J, Hu HL, Li WX, Zhong Y. Protective effect 3,4-dihydroxyphenylethanol in subarachnoid hemorrhage provoked oxidative neuropathy. Exp Ther Med 2016; 12:1908-1914. [PMID: 27588109 DOI: 10.3892/etm.2016.3526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 04/22/2016] [Indexed: 12/25/2022] Open
Abstract
Clinical studies have indicated that early brain injury (EBI) following subarachnoid hemorrhage (SAH) is associated with fatal outcomes. Oxidative stress and brain edema are the characteristic pathological events in occurrence EBI following SAH. The present study aimed to examine the effect of 3,4-dihydroxyphenylethanol (DOPET) against SAH-induced EBI, and to demonstrate whether the effect is associated with its potent free radical scavenging property. SAH was induced in rats using an endovascular perforation technique, and 24 h later the rats displayed diminished neurological scores and brain edema. Furthermore, elevated malondialdehyde (an index of lipid peroxidation) and depleted levels of antioxidants were observed in the rat cerebral cortex tissue. Quantitative polymerase chain reaction analysis indicated the upregulated mRNA expression of the apoptotic markers caspase-3 and -9 in the cerebral cortex. Furthermore, the protein expression levels of the proinflammatory cytokines tumor necrosis factor-α, interleukin (IL)-1β and IL-6 were significantly upregulated in SAH-induced rats. By constrast, treatment with DOPET significantly attenuated EBI by reducing brain edema, elevation of antioxidant status, inhibition of apoptosis and inflammation. In this context, DOPET may be a potent agent in the treatment of EBI following SAH, as a result of its free radical scavenging capacity.
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Affiliation(s)
- Yu-Wen Zhong
- Department of Neurology, Tongcheng People's Hospital, Xianning, Hubei 437400, P.R. China
| | - Juan Wu
- Department of Obstetrics and Gynecology, Tongcheng People's Hospital, Xianning, Hubei 437400, P.R. China
| | - Hua-Long Hu
- Department of Neurology, Tongcheng People's Hospital, Xianning, Hubei 437400, P.R. China
| | - Wei-Xin Li
- Department of Neurology, Tongcheng People's Hospital, Xianning, Hubei 437400, P.R. China
| | - Yong Zhong
- Department of Neurology, Tongcheng People's Hospital, Xianning, Hubei 437400, P.R. China
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32
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FU PENG, HU QUAN. 3,4-Dihydroxyphenylethanol alleviates early brain injury by modulating oxidative stress and Akt and nuclear factor-κB pathways in a rat model of subarachnoid hemorrhage. Exp Ther Med 2016; 11:1999-2004. [PMID: 27168841 PMCID: PMC4840544 DOI: 10.3892/etm.2016.3101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 01/22/2016] [Indexed: 11/06/2022] Open
Abstract
3,4-Dihydroxyphenylethanol (DOPET) is a naturally occurring polyphenolic compound, present in olive oil and in the wastewater generated during olive oil processing. DOPET has various biological and pharmacological activities, including anticancer, antibacterial and anti-inflammatory effects. This study was designed to determine whether DOPET alleviates early brain injury (EBI) associated with subarachnoid hemorrhage (SAH) through suppression of oxidative stress and Akt and nuclear factor (NF)-κB pathways. Rats were randomly divided into the following groups: Sham group, SAH group, SAH + vehicle group and SAH + DOPET group. Mortality, blood-brain barrier (BBB) permeability and brain water content were assessed. Oxidative stress, Akt, NF-κB p65 and caspase-3 assays were also performed. DOPET induced a reduction in brain water content, and decreased the BBB permeability of SAH model rats. Furthermore, DOPET effectively controlled oxidative stress, NF-κB p65 and caspase-3 levels, in addition to significantly increasing Akt levels in the cortex following SAH. These results provide evidence that DOPET attenuates apoptosis in a rat SAH model through modulating oxidative stress and Akt and NF-κB signaling pathways.
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Affiliation(s)
- PENG FU
- Department of Neurosurgery, Taian Central Hospital, Taian, Shandong 271000, P.R. China
| | - QUAN HU
- Department of Neurosurgery, Taian Central Hospital, Taian, Shandong 271000, P.R. China
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33
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Effect of acetazolamide on cytokines in rats exposed to high altitude. Cytokine 2016; 83:110-117. [PMID: 27104804 DOI: 10.1016/j.cyto.2016.04.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 03/19/2016] [Accepted: 04/03/2016] [Indexed: 02/08/2023]
Abstract
Acute mountain sickness (AMS) is a dangerous hypoxic illness that can affect humans who rapidly reach a high altitude above 2500m. In the study, we investigated the changes of cytokines induced by plateau, and the acetazolamide (ACZ) influenced the cytokines in rats exposed to high altitude. Wistar rats were divided into low altitude (Control), high altitude (HA), and high altitude+ACZ (22.33mg/kg, Bid) (HA+ACZ) group. The rats were acute exposed to high altitude at 4300m for 3days. The HA+ACZ group were given ACZ by intragastric administration. The placebo was equal volume saline. The results showed that hypoxia caused the heart, liver and lung damage, compared with the control group. Supplementation with ACZ significantly alleviated hypoxia-caused damage to the main organs. Compared with the HA group, the biochemical and blood gas indicators of the HA+ACZ group showed no difference, while some cytokines have significantly changed, such as activin A, intercellular adhesion molecule-1 (ICAM-1, CD54), interleukin-1α,2 (IL-1α,2), l-selectin, monocyte chemotactic factor (MCP-1), CC chemokines (MIP-3α) and tissue inhibitor of matrix metalloproteinase 1 (TIMP-1). Then, the significant difference pro-inflammatory cytokines in protein array were chosen for further research. The protein and mRNA content of pro-inflammatory cytokines MCP-1, interleukin-1β (IL-1β), tumor necrosis factor (TNF-α), interferon-γ (IFN-γ) in rat lung were detected. The results demonstrated that the high altitude affected the body's physiological and biochemical parameters, but, ACZ did not change those parameters of the hypoxia rats. This study found that ACZ could decrease the content of pro-inflammatory cytokines, such as MCP-1, IL-1β, TNF-α and IFN-γ in rat lungs, and, the lung injury in the HA+ACZ group reduced. The mechanism that ACZ protected hypoxia rats might be related to changes in cytokine content. The reducing of the pro-inflammatory cytokines in rat lung might be other reason to explain ACZ against the acute mountain sickness.
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Davidson JM, Wong CT, Rai-Bhogal R, Li H, Crawford DA. Prostaglandin E2 elevates calcium in differentiated neuroectodermal stem cells. Mol Cell Neurosci 2016; 74:71-7. [PMID: 27074429 DOI: 10.1016/j.mcn.2016.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 03/21/2016] [Accepted: 03/31/2016] [Indexed: 01/02/2023] Open
Abstract
Lipid mediator prostaglandin E2 (PGE2) is an endogenous signaling molecule that plays an important role during early development of the nervous system. Abnormalities in the PGE2 signaling pathway have been associated with neurodevelopmental disorders such as autism spectrum disorders. In this study we use ratiometric fura-2AM calcium imaging to show that higher levels of PGE2 elevate intracellular calcium levels in the cell soma and growth cones of differentiated neuroectodermal (NE-4C) stem cells. PGE2 also increased the amplitude of calcium fluctuation in the neuronal growth cones and affected the neurite extension length. In summary, our results show that PGE2 may adversely impact intracellular calcium dynamics in differentiated neuronal cells and possibly affect early development of the nervous system.
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Affiliation(s)
- Jennilee M Davidson
- Neuroscience Graduate Diploma Program, York University, Toronto, ON M3J 1P3, Canada; Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Christine T Wong
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada; Neuroscience Graduate Diploma Program, York University, Toronto, ON M3J 1P3, Canada
| | - Ravneet Rai-Bhogal
- Neuroscience Graduate Diploma Program, York University, Toronto, ON M3J 1P3, Canada; Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Hongyan Li
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Dorota A Crawford
- School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada; Neuroscience Graduate Diploma Program, York University, Toronto, ON M3J 1P3, Canada; Department of Biology, York University, Toronto, ON M3J 1P3, Canada.
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35
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Cui Q, Pan Y, Bai X, Zhang W, Chen L, Liu X. Systematic characterization of the metabolites of echinacoside and acteoside from Cistanche tubulosa in rat plasma, bile, urine and feces based on UPLC-ESI-Q-TOF-MS. Biomed Chromatogr 2016; 30:1406-15. [PMID: 26856531 DOI: 10.1002/bmc.3698] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 01/26/2016] [Accepted: 02/03/2016] [Indexed: 11/08/2022]
Abstract
Echinacoside (ECH) and acteoside (ACT), as the most and major active components of Cistanche tubulosa, were reported to possess cardioactive, neuroprotective and hepatocyte protective effects, as well as antibacterial, antioxidative effects. Recently, more studies have focused on their pharmacological activities. However, their metabolic profiles in vivo have not been sufficiently investigated. This study proposes an approach for rapidly identifying the complicated and unpredictable metabolites of ECH and ACT in rat plasma, bile, urine and feces, and systematically and comprehensively revealing their major metabolic pathways, based on powerful ultra-high performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry. Plasma, bile, urine and feces were collected from rats after a single 200 mg/kg oral dose. A total of 49 metabolites were detected in rat biological samples. Through analyzing metabolites in bile samples, it was found that ECH and ACT were subjected to a marked hepatic first-pass effect in liver. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Qingling Cui
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Yingni Pan
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Xuewei Bai
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Wei Zhang
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Lixia Chen
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Xiaoqiu Liu
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
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36
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Extra virgin olive oil modulates brain docosahexaenoic acid level and oxidative damage caused by 2,4-Dichlorophenoxyacetic acid in rats. Journal of Food Science and Technology 2016; 53:1454-64. [PMID: 27570270 DOI: 10.1007/s13197-015-2150-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/01/2015] [Accepted: 12/15/2015] [Indexed: 01/18/2023]
Abstract
Oxidative stress is an important pathomechanism of neurological disorders such as Alzheimer disease and Parkinson disease, cardiovascular disorders and many others. This study sought to verify whether extra-virgin olive oil (EVOO), lipophilic fraction (OOLF) and hydrophilic fraction (OOHF) exerted a brain protective effect against the oxidative stress caused by 2,4-dichlorophenoxyacetic acid (2,4-D) pesticide at a dose of 5 mg/kg body weight. 2,4-D, EVOO and its fractions were administered to rats by gavages for four consecutive weeks. Oxidative stress was assessed by measuring brain lipid peroxide level, acetylcholinesterase (AChE), antioxidant enzyme activities and fatty acid composition. 2,4-D induced a decrease in both plasma and brain acetylcholinesterase activity and a rise in Brain TBARS (Thiobarbituric acid reactive substances) level and antioxidant enzyme activities compared with the control group. These changes were partly reversed by either EVOO or its fractions oral administration to 2,4-D treated rats. EVOO enhanced a neuroprotective effect evaluated by the restoration of brain fatty acid composition especially the level of docosahexaenoic acid (DHA). Our results indicate that EVOO exerts a neuroprotective activity against oxidative damage in brain induced by 2,4-D, which could be attributed to its antioxidative property.
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37
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Jakobušić Brala C, Benčić D, Šindrak Z, Barbarić M, Uršić S. Labeled extra virgin olive oil as food supplement; phenolic compounds in oils from some autochthonous Croatian olives. GRASAS Y ACEITES 2015. [DOI: 10.3989/gya.0228151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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38
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ZHANG W, HUO SX, WEN YL, XING H, ZHANG Q, LI N, ZHAO D, SUN XL, XU J, YAN M, CHEN XJ. Pharmacokinetics of acteoside following single dose intragastric and intravenous administrations in dogs. Chin J Nat Med 2015; 13:634-40. [DOI: 10.1016/s1875-5364(15)30060-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Indexed: 11/30/2022]
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De La Cruz JP, Ruiz-Moreno MI, Guerrero A, Reyes JJ, Benitez-Guerrero A, Espartero JL, González-Correa JA. Differences in the Neuroprotective Effect of Orally Administered Virgin Olive Oil (Olea europaea) Polyphenols Tyrosol and Hydroxytyrosol in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:5957-5963. [PMID: 26066316 DOI: 10.1021/acs.jafc.5b00627] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The neuroprotective effect of virgin olive oil (VOO) polyphenols has been related to their antioxidant effect. The main objective was to analyze how tyrosol and hydroxytyrosol contribute to the antioxidant and neuroprotective effects of VOO in a model of hypoxia-reoxygenation in rat brain slices. Rats were treated per os (po) (10 or 20 mg/kg/day) with hydroxytyrosol ethyl ether (HTEE), tyrosol ethyl ether (TEE), or 3,4-di-o-methylidene-hydroxytyrosol ethyl ether (MHTEE), used as a negative control for antioxidant effects. Lipid peroxidation was inhibited with HTEE, TEE, and MHTEE (from 5.0 ± 1.5 to 2.6 ± 1.5, 4.5 ± 1.5, and 4.8 ± 1.5 nmol/mg protein, respectively). However, all three compounds had similar neuroprotective effects: from 2.8 ± 0.07 to 1.8 ± 0.02 arbitrary units for HTEE, 1.4 ± 0.09 arbitrary units for TEE, and 1.3 ± 0.2 arbitrary units for MHTEE. All three compounds inhibited 3-nitrotyrosine production (from 3.7 ± 0.3 to 1.2 ± 0.03 nmol/0.1 g tissue for HTEE, 1.0 ± 0.2 nmol/0.1 g tissue for TEE, and 1.3 ± 0.1 nmol/0.1 g tissue for MHTEE), prostaglandin E2 production (from 55.7 ± 2.2 to 46.4 ± 1.9 pg/0.1 g tissue for HTEE, 24.7 ± 1.3 pg/0.1 g tissue for TEE, and 27.6 ± 2.6 pg/0.1 g tissue for MHTEE), whereas only HTEE inhibited IL1β production (from 35.7 ± 1.5 to 21.6 ± 0.8 pg/0.1 g tissue). Pearson correlation coefficients related neuroprotective effect with an antioxidant effect for HTEE (R = 0.72, p < 0.001), and inhibition of nitrosative stress (R = 0.78, 0.67, and 0.66 for HTEE, TEE, and MHTEE, respectively, p < 0.001) and inflammatory mediators (R = 0.72, 0.79, and 0.64 for HTEE, TEE, and MHTEE, respectively, p < 0.001) with all three compounds.
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Affiliation(s)
- José Pedro De La Cruz
- †Laboratorio de Investigaciones Antitrombóticas e Isquemia Tisular (LIAIT), Department of Pharmacology and Therapeutics, School of Medicine, University of Malaga, Malaga, Spain
| | - Maria Isabel Ruiz-Moreno
- †Laboratorio de Investigaciones Antitrombóticas e Isquemia Tisular (LIAIT), Department of Pharmacology and Therapeutics, School of Medicine, University of Malaga, Malaga, Spain
| | - Ana Guerrero
- †Laboratorio de Investigaciones Antitrombóticas e Isquemia Tisular (LIAIT), Department of Pharmacology and Therapeutics, School of Medicine, University of Malaga, Malaga, Spain
| | - José Julio Reyes
- †Laboratorio de Investigaciones Antitrombóticas e Isquemia Tisular (LIAIT), Department of Pharmacology and Therapeutics, School of Medicine, University of Malaga, Malaga, Spain
| | | | - José Luis Espartero
- #Departamento de Quı́mica Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, Seville, Spain
| | - José Antonio González-Correa
- †Laboratorio de Investigaciones Antitrombóticas e Isquemia Tisular (LIAIT), Department of Pharmacology and Therapeutics, School of Medicine, University of Malaga, Malaga, Spain
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De La Cruz J, Ruiz-Moreno M, Guerrero A, López-Villodres J, Reyes J, Espartero J, Labajos M, González-Correa J. Role of the catechol group in the antioxidant and neuroprotective effects of virgin olive oil components in rat brain. J Nutr Biochem 2015; 26:549-55. [DOI: 10.1016/j.jnutbio.2014.12.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/20/2014] [Accepted: 12/10/2014] [Indexed: 10/24/2022]
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Achmon Y, Fishman A. The antioxidant hydroxytyrosol: biotechnological production challenges and opportunities. Appl Microbiol Biotechnol 2014; 99:1119-30. [PMID: 25547836 DOI: 10.1007/s00253-014-6310-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 12/06/2014] [Accepted: 12/09/2014] [Indexed: 10/24/2022]
Abstract
Hydroxytyrosol (HT) is a highly potent antioxidant originating in nature as a second metabolite of plants, most abundantly in olives (Olea europaea). In the last decade, numerous research studies showed the health benefits of antioxidants in general and those of HT in particular. As olive oil is a prime constituent of the health-promoting Mediterranean diet, HT has obtained recognition for its attributes, supported by a recent health claim of the European Food Safety Authority. HT is already used as a food supplement and in cosmetic products, but it has the potential to be used as a food additive and drug, based on its anticarcinogenic, anti-inflammatory, antiapoptotic and neuroprotective activity. Nevertheless, there is a large gap between the potential of HT and its current availability in the market due to its high price tag. In this review, the challenges of producing HT using biotechnological methods are described with an emphasis on the substrate source, the biocatalyst and the process parameters, in order to narrow the gap towards an efficient bio-based industrial process.
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Affiliation(s)
- Yigal Achmon
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
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Bulotta S, Celano M, Lepore SM, Montalcini T, Pujia A, Russo D. Beneficial effects of the olive oil phenolic components oleuropein and hydroxytyrosol: focus on protection against cardiovascular and metabolic diseases. J Transl Med 2014; 12:219. [PMID: 25086598 PMCID: PMC4237885 DOI: 10.1186/s12967-014-0219-9] [Citation(s) in RCA: 234] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 07/22/2014] [Indexed: 11/16/2022] Open
Abstract
The overall health beneficial action of olive oil phenolic components is well established. Recent studies have elucidated the biological effects of two isolated compounds, namely oleuropein and hydroxytyrosol, with particular attention on their antioxidant activity. Thus, a protective action has been demonstrated in preclinical studies against several diseases, especially cardiovascular and metabolic disorders. The present review will describe the biological effects of oleuropein and hydroxytyrosol, with particular attention on the molecular mechanism underlying the protective action on cardiovascular and metabolic alterations, as demonstrated by in vitro and in vivo experimental studies performed with the isolated compounds.
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Affiliation(s)
| | | | | | | | - Arturo Pujia
- Department of Health Sciences, University "Magna Graecia" of Catanzaro, Campus "S, Venuta", Catanzaro, 88100, Italy.
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