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Pessoa HR, Zago L, Difonzo G, Pasqualone A, Caponio F, Ferraz da Costa DC. Olive Leaves as a Source of Anticancer Compounds: In Vitro Evidence and Mechanisms. Molecules 2024; 29:4249. [PMID: 39275097 DOI: 10.3390/molecules29174249] [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: 05/31/2024] [Revised: 08/15/2024] [Accepted: 09/04/2024] [Indexed: 09/16/2024] Open
Abstract
Olive trees not only produce olives but also generate a substantial amount of waste and by-products, including leaves, pomace (the solid remains after pressing olives for oil), and wastewater from the olive oil-making process. The waste products, particularly the leaves, contain bioactive compounds, especially phenolic compounds, known for their health benefits, such as high antioxidant potential and the ability to reduce inflammation. These compounds have shown promise in preventing and treating cancer. This review, based on in vitro evidence, provides a detailed description and discussion of the mechanisms through which these compounds from olive leaves can prevent development, the ways they might act against cancer cells, and their potential to increase the sensitivity of tumor cells to conventional anticancer therapy. The possible synergistic effects of these compounds suggest that olive leaf extracts may offer a promising approach for cancer treatment, compared with isolated compounds, thus providing novel possibilities for cancer therapy.
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Affiliation(s)
- Heloisa Rodrigues Pessoa
- Laboratory of Physiopathology and Biochemistry of Nutrition, Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro 20550-013, Brazil
| | - Lilia Zago
- Laboratory of Physiopathology and Biochemistry of Nutrition, Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro 20550-013, Brazil
| | - Graziana Difonzo
- Department of Soil, Plant and Food Sciences, Food Science and Technology Unit, University of Bari Aldo Moro, Via Amendola 165/A, I-70126 Bari, Italy
| | - Antonella Pasqualone
- Department of Soil, Plant and Food Sciences, Food Science and Technology Unit, University of Bari Aldo Moro, Via Amendola 165/A, I-70126 Bari, Italy
| | - Francesco Caponio
- Department of Soil, Plant and Food Sciences, Food Science and Technology Unit, University of Bari Aldo Moro, Via Amendola 165/A, I-70126 Bari, Italy
| | - Danielly C Ferraz da Costa
- Laboratory of Physiopathology and Biochemistry of Nutrition, Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro 20550-013, Brazil
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Fu YP, Malterud KE, Hamre AG, Inngjerdingen KT, Wangensteen H. Polysaccharides and Bioactive Phenolics from Aconitum septentrionale Roots. Chem Biodivers 2023; 20:e202300161. [PMID: 37337851 DOI: 10.1002/cbdv.202300161] [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: 02/03/2023] [Revised: 05/10/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
Aconitum septentrionale is known to contain toxic diterpene alkaloids, while other bioactive compounds in the plant remain unclear. The aim of this study was to explore the phenolic compounds and polysaccharides from the water extract of A. septentrionale roots. Fifteen phenolic compounds were isolated and identified by NMR and MS, including fourteen known and one new dianthramide glucoside (2-[[2-(β-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-4,5-dihydroxybenzoic acid methyl ester, 14). One neutral (complex of glucans with minor amounts of mannans) and two acidic polysaccharide fractions (complexes of pectic polysaccharides and glucans) were also obtained. Hydroxytyrosol (1), hydroxytyrosol-1-O-β-glucoside (2) and bracteanolide A (7) inhibited the release of nitric oxide by dendritic cells. Magnoflorine (8) and 2-[[2-(β-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-5-hydroxybenzoic acid methyl ester (12) inhibited 15-lipoxygenase, and bracteanolide A (7) was a moderate inhibitor of xanthine oxidase. This study is the first to describe the diversity of phenolics and polysaccharides from A. septentrionale and their anti-inflammatory and anti-oxidant activities.
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Affiliation(s)
- Yu-Ping Fu
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Karl Egil Malterud
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Anne Grethe Hamre
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Kari Tvete Inngjerdingen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Helle Wangensteen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
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Chlorophyll Pigments of Olive Leaves and Green Tea Extracts Differentially Affect Their Antioxidant and Anticancer Properties. Molecules 2023; 28:molecules28062779. [PMID: 36985751 PMCID: PMC10053222 DOI: 10.3390/molecules28062779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/11/2023] [Accepted: 03/18/2023] [Indexed: 03/22/2023] Open
Abstract
Plant-based extracts possess biological potential due to their high content of phytochemicals. Nevertheless, photosynthetic pigments (e.g., chlorophylls) that are also present in plant extracts could produce undesirable pro-oxidant activity that might cause a negative impact on their eventual application. Herein, the phenolic content of olive leaf (OLE) and green tea (GTE) extracts was assayed, and their antioxidant and anticancer activities were evaluated before and after the removal of chlorophylls. Regarding phenolic content, OLE was rich in hydroxytyrosol, tyrosol as well as oleuropein, whereas the main compounds present in GTE were gallocatechin, epigallocatechin (EGC), epigallocatechin gallate (EGCG), gallocatechin gallate, and caffeine. Interestingly, fresh extracts’ antioxidant ability was dependent on phenolic compounds; however, the elimination of chlorophyll compounds did not modify the antioxidant activity of extracts. In addition, both OLE and GTE had high cytotoxicity against HL-60 leukemic cell line. Of note, the removal of chlorophyll pigments remarkably reduced the cytotoxic effect in both cases. Therefore, our findings emphasize the remarkable antioxidant and anticancer potential of OLE and GTE and suggest that chlorophylls are of paramount importance for the tumor-killing ability of such plant-derived extracts.
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The Effect of a Hydroxytyrosol-Rich, Olive-Derived Phytocomplex on Aerobic Exercise and Acute Recovery. Nutrients 2023; 15:nu15020421. [PMID: 36678293 PMCID: PMC9864860 DOI: 10.3390/nu15020421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/18/2023] Open
Abstract
There is current scientific interest in naturally sourced phenolic compounds and their potential benefits to health, as well as the effective role polyphenols may provide in an exercise setting. This study investigated the chronic effects of supplementation with a biodynamic and organic olive fruit water phytocomplex (OliPhenolia® [OliP]), rich in hydroxytyrosol (HT), on submaximal and exhaustive exercise performance and respiratory markers of recovery. Twenty-nine recreationally active participants (42 ± 2 yrs; 71.1 ± 2.1 kg; 1.76 ± 0.02 m) consumed 2 × 28 mL∙d−1 of OliP or a taste- and appearance-matched placebo (PL) over 16 consecutive days. Participants completed a demanding, aerobic exercise protocol at ~75% maximal oxygen uptake (V˙O2max) for 65 min 24 h before sub- and maximal performance exercise tests prior to and following the 16-day consumption period. OliP reduced the time constant (τ) (p = 0.005) at the onset of exercise, running economy (p = 0.015) at lactate threshold 1 (LT1), as well as the rating of perceived exertion (p = 0.003) at lactate turnpoint (LT2). Additionally, OliP led to modest improvements in acute recovery based upon a shorter time to achieve 50% of the end of exercise V˙O2 value (p = 0.02). Whilst OliP increased time to exhaustion (+4.1 ± 1.8%), this was not significantly different to PL (p > 0.05). Phenolic compounds present in OliP, including HT and related metabolites, may provide benefits for aerobic exercise and acute recovery in recreationally active individuals. Further research is needed to determine whether dose-response or adjunct use of OliP alongside longer-term training programs can further modulate exercise-associated adaptations in recreationally active individuals, or indeed support athletic performance.
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Eddie-Amadi BF, Ezejiofor AN, Orish CN, Cirovic A, Cirovic A, Orisakwe OE. Banana peel extract alleviate inflammation and oxidative stress via modulation of the Nrf2/Hmox-1 and NF-κB pathways in thyroid of heavy metal mixture exposed female rats. TOXICOLOGY RESEARCH AND APPLICATION 2023. [DOI: 10.1177/23978473231167422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Introduction This is an evaluation of the effects of banana peel BP extract on the heavy metals’ mixture HMM mediated oxido-inflammatory effects in the thyroid of female albino rats. Methods Five groups (5 female rats/group) were treated as follows for 60 days: Group 1: Deionized water only; Group 2: (Pb, Hg, Mn and Al); Group 3: 200 mg/kg BP extract + HMM; Group 4: 400 mg/kg BP extract + HMM; Group 5: 800 mg/kg BP extract + HMM. On day 60 animals were euthanized, thyroid was harvested and used for, malondialdehyde MDA, nitric oxide NO, antioxidants, tumor necrosis factor alpha (TNF – α), interleukin 6 (IL – 6), Caspase-3, Nuclear factor erythroid 2- related factor 2 (Nrf2), Nuclear factor kappa B (NfkB) and Heme Oxygynase – 1 (Hmox-1) and histopathology. Results There was significant bioaccumulation of Pb, Al, Hg and MN; elevated IL-6 and Tnf-α, MDA and NO, caspase-3 and Nrf2, NF-κB and Hmox-1 in the HMM only group in comparison to the control. There was significant ( p < 0.05) decrease in SOD, CAT GSH activities in HMM only exposed group in comparison to the control deionized water group, whereas BP co-treatment with HMM significantly ( p < 0.05) increased SOD, CAT GSH activities. Co-treatment with BP extract also reversed most of these effects. Discussion and Conclusions BP extract may ameliorate HMM -induced thyrotoxicity in female albino rats by blunting oxido-inflammatory activities.
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Purić J, Bigović D, Šavikin K, Živković J, Ilić M. Olive oil and olive leaf extracts consumption: A survey on consumer’s attitudes. MAKEDONSKO FARMACEVTSKI BILTEN 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.04.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Jelena Purić
- Faculty of Pharmacy, University of the Academy of Commerce, Trg mladenaca 5, 21101 Novi Sad, Srbija
| | - Dubravka Bigović
- Institute for Medicinal Plants Research “Dr Josif Pančić”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Katarina Šavikin
- Institute for Medicinal Plants Research “Dr Josif Pančić”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Jelena Živković
- Institute for Medicinal Plants Research “Dr Josif Pančić”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Milan Ilić
- Faculty of Pharmacy, University of the Academy of Commerce, Trg mladenaca 5, 21101 Novi Sad, Srbija
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Eddie-Amadi BF, Ezejiofor AN, Orish CN, Orisakwe OE. Zn and Se abrogate heavy metal mixture induced ovarian and thyroid oxido-inflammatory effects mediated by activation of NRF2-HMOX-1 in female albino rats. Curr Res Toxicol 2022; 4:100098. [PMID: 36624872 PMCID: PMC9823124 DOI: 10.1016/j.crtox.2022.100098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
The thyroid is vital for the proper functioning of the female reproductive system since it regulates the metabolism and development of ovary. This is an evaluation of the essential trace elements ETE on the heavy metals mixture HMM mediated oxido-inflammatory effects in the ovary and thyroid of female albino rats. Eight groups (5 female rats /group) were treated as follows for 60 days: Group 1: Deionized water only; Group 2: (Pb, Hg, Mn and Al); Group 3: HMM + ZnCl2, 0.80 mg/kg; Group 4: HMM + Na2SeO3, 1.50 mg/kg; Group 5: HMM + ZnCl2, 0.80 mg/kg and Na2SeO3, 1.50 mg/kg combined. On day 60 animals were euthanized, ovary and thyroid were harvested and used for, MDA, NO, antioxidants, TNF-α, IL-6, HMOX-1, Caspase-3, NF-KB, NRF2, HM and histopathology. There was significant bioaccumulation of Pb, Al, Hg and MN; elevated IL-6 and TNF-α, MDA and NO, caspase-3 and NRF2, NFKB and HMOX-1 with significant decrease in antioxidants in the HMM only group in comparison to the control. Co-treatment with ETE reversed most of these effects. ETE may ameliorate HMM -induced ovarian and thyrotoxicity in female albino rats by blunting oxido-inflammatory activities.
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Affiliation(s)
- Boma F. Eddie-Amadi
- World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Anthonet N. Ezejiofor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Chinna N. Orish
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Orish E. Orisakwe
- World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
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BORGONETTI V, COCETTA V, BIAGI M, CARNEVALI I, GOVERNA P, MONTOPOLI M. Anti-inflammatory activity of a fixed combination of probiotics and herbal extract in an in-vitro model of intestinal inflammation by stimulating Caco-2 cells with LPS-conditioned THP-1 cells medium. Minerva Pediatr (Torino) 2022; 74:511-518. [DOI: 10.23736/s2724-5276.20.05765-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Askoura M, Yousef N, Mansour B, Yehia FAZA. Antibiofilm and staphyloxanthin inhibitory potential of terbinafine against Staphylococcus aureus: in vitro and in vivo studies. Ann Clin Microbiol Antimicrob 2022; 21:21. [PMID: 35637481 PMCID: PMC9153124 DOI: 10.1186/s12941-022-00513-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 05/06/2022] [Indexed: 11/13/2022] Open
Abstract
Background Antimicrobial resistance is growing substantially, which necessitates the search for novel therapeutic options. Terbinafine, an allylamine antifungal agent that exhibits a broad spectrum of activity and is used in the treatment of dermatophytosis, could be a possible option to disarm S. aureus virulence. Methods Terbinafine inhibitory effect on staphyloxanthin was characterized by quantitative measurement of staphyloxanthin intermediates and molecular docking. The effect of terbinafine on S. aureus stress survival was characterized by viable counting. The anti-biofilm activity of terbinafine on S. aureus was assessed by the crystal violet assay and microscopy. Changes in S. aureus membrane following treatment with terbinafine were determined using Fourier transform infrared (FTIR) analysis. The synergistic action of terbinafine in combination with conventional antibiotics was characterized using the checkerboard assay. qRT-PCR was used to evaluate the impact of terbinafine on S. aureus gene expression. The influence of terbinafine on S. aureus pathogenesis was investigated in mice infection model. Results Terbinafine inhibits staphyloxanthin biosynthesis through targeting dehydrosqualene desaturase (CrtN). Docking analysis of terbinafine against the predicted active site of CrtN reveals a binding energy of − 9.579 kcal/mol exemplified by the formation of H-bonds, H-arene bonds, and hydrophobic/hydrophilic interactions with the conserved amino acids of the receptor pocket. Terbinafine treated S. aureus was more susceptible to both oxidative and acid stress as well as human blood killing as compared to untreated cells. Targeting staphyloxanthin by terbinafine rendered S. aureus more sensitive to membrane acting antibiotics. Terbinafine interfered with S. aureus biofilm formation through targeting cell autoaggregation, hydrophobicity, and exopolysaccharide production. Moreover, terbinafine demonstrated a synergistic interaction against S. aureus when combined with conventional antibiotics. Importantly, terbinafine attenuated S. aureus pathogenesis using mice infection model. qRT-PCR revealed that terbinafine repressed expression of the transcriptional regulators sigB, sarA, and msaB, as well as icaA in S. aureus. Conclusions Present findings strongly suggest that terbinafine could be used safely and efficiently as an anti-virulent agent to combat S. aureus infections.
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Affiliation(s)
- Momen Askoura
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Nehal Yousef
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Basem Mansour
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Belqas, Egypt
| | - Fatma Al-Zahraa A Yehia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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Notariale R, Perrone P, Mele L, Lettieri G, Piscopo M, Manna C. Olive Oil Phenols Prevent Mercury-Induced Phosphatidylserine Exposure and Morphological Changes in Human Erythrocytes Regardless of Their Different Scavenging Activity. Int J Mol Sci 2022; 23:ijms23105693. [PMID: 35628502 PMCID: PMC9147954 DOI: 10.3390/ijms23105693] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 02/05/2023] Open
Abstract
Phosphatidylserine (PS) translocation to the external membrane leaflet represents a key mechanism in the pathophysiology of human erythrocytes (RBC) acting as an "eat me" signal for the removal of aged/stressed cells. Loss of physiological membrane asymmetry, however, can lead to adverse effects on the cardiovascular system, activating a prothrombotic activity. The data presented indicate that structurally related olive oil phenols prevent cell alterations induced in intact human RBC exposed to HgCl2 (5-40 µM) or Ca2+ ionophore (5 µM), as measured by hallmarks including PS exposure, reactive oxygen species generation, glutathione depletion and microvesicles formation. The protective effect is observed in a concentration range of 1-30 µM, hydroxytyrosol being the most effective; its in vivo metabolite homovanillic alcohol still retains the biological activity of its dietary precursor. Significant protection is also exerted by tyrosol, in spite of its weak scavenging activity, indicating that additional mechanisms are involved in the protective effect. When RBC alterations are mediated by an increase in intracellular calcium, the protective effect is observed at higher concentrations, indicating that the selected phenols mainly act on Ca2+-independent mechanisms, identified as protection of glutathione depletion. Our findings strengthen the nutritional relevance of olive oil bioactive compounds in the claimed health-promoting effects of the Mediterranean Diet.
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Affiliation(s)
- Rosaria Notariale
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.N.); (P.P.)
| | - Pasquale Perrone
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.N.); (P.P.)
| | - Luigi Mele
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Gennaro Lettieri
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (G.L.); (M.P.)
| | - Marina Piscopo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (G.L.); (M.P.)
| | - Caterina Manna
- Department of Precision Medicine, School of Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.N.); (P.P.)
- Correspondence:
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Abstract
Table olives, a product of olive tree (Olea europaea L.), is an important fermented product of the Mediterranean Diet. Agronomical factors, particularly the cultivar, the ripening stage and the processing method employed are the main factors influencing the nutritional and non-nutritional composition of table olives and their organoleptic properties. The important nutritional value of this product is due to its richness in monounsaturated fat (MUFA), mainly oleic acid, fibre and vitamin E together with the presence of several phytochemicals. Among these, hydroxytyrosol (HT) is the major phenolic compound present in all types of table olives. There is a scarcity of in vitro, in vivo and human studies of table olives. This review focused comprehensively on the nutrients and bioactive compound content as well as the health benefits assigned to table olives. The possible health benefits associated with their consumption are thought to be primarily related to effects of MUFA on cardiovascular health, the antioxidant (AO) capacity of vitamin E and its role in protecting the body from oxidative damage and the anti-inflammatory and AO activities of HT. The influence of multiple factors on composition of the end product and the potential innovation in the production of table olives through the reduction of its final salt content was also discussed.
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Key Words
- ALS, amyotrophic lateral sclerosis
- AO, antioxidant
- Alpha-tocopherol
- BP, blood pressure
- CVD, cardiovascular disease
- DM-II, Diabetes Mellitus 2
- EFSA, European Food Safety Authority
- FM, fat mass
- GSH, glutathione
- HDL-c, high-density lipoprotein cholesterol
- HT, hydroxytyrosol
- LDL-c, low-density lipoprotein cholesterol
- MD, Mediterranean Diet
- MUFA, monounsaturated fat
- Mediterranean Diet
- Monounsaturated fat
- NO, nitric oxide
- NaCl, sodium chloride
- NaOH, sodium hydroxide
- Nrf2, nuclear factor erythroid 2-related factor 2
- OL, oleuropein
- OO, olive oil
- PKC, protein kinase C
- PUFA, polyunsaturated fat
- Phenolic compounds
- RDA, Recommended Dietary Allowance
- ROS, reactive oxygen species
- TC, total cholesterol
- TG, triacylglycerol
- TG, triglyceride
- Table olives
- Ty, tyrosol
- WHO, World Health Organization
- cv, cultivar
- e.p, edible portion
- α-TOH, alpha-tocopherol
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Impacts of thermal fluctuations on heat tolerance and its metabolomic basis in Arabidopsis thaliana, Drosophila melanogaster, and Orchesella cincta. PLoS One 2020; 15:e0237201. [PMID: 33119606 PMCID: PMC7595314 DOI: 10.1371/journal.pone.0237201] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/30/2020] [Indexed: 12/16/2022] Open
Abstract
Temperature varies on a daily and seasonal scale and thermal fluctuations are predicted to become even more pronounced under future climate changes. Studies suggest that plastic responses are crucial for species’ ability to cope with thermal stress including variability in temperature, but most often laboratory studies on thermal adaptation in plant and ectotherm organisms are performed at constant temperatures and few species included. Recent studies using fluctuating thermal regimes find that thermal performance is affected by both temperature mean and fluctuations, and that plastic responses likely will differ between species according to life strategy and selective past. Here we investigate how acclimation to fluctuating or constant temperature regimes, but with the same mean temperature, impact on heat stress tolerance across a plant (Arabidopsis thaliana) and two arthropod species (Orchesella cincta and Drosophila melanogaster) inhabiting widely different thermal microhabitats and with varying capability for behavioral stress avoidance. Moreover, we investigate the underlying metabolic responses of acclimation using NMR metabolomics. We find increased heat tolerance for D. melanogaster and A. thaliana exposed to fluctuating acclimation temperatures, but not for O. cincta. The response was most pronounced for A. thaliana, which also showed a stronger metabolome response to thermal fluctuations than both arthropods. Generally, sugars were more abundant across A. thaliana and D. melanogaster when exposed to fluctuating compared to constant temperature, whereas amino acids were less abundant. This pattern was not evident for O. cincta, and generally we do not find much evidence for similar metabolomics responses to fluctuating temperature acclimation across species. Differences between the investigated species’ ecology and different ability to behaviorally thermoregulate may have shaped their physiological responses to thermal fluctuations.
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Sun T, Kwong CHT, Gao C, Wei J, Yue L, Zhang J, Ye RD, Wang R. Amelioration of ulcerative colitis via inflammatory regulation by macrophage-biomimetic nanomedicine. Theranostics 2020; 10:10106-10119. [PMID: 32929337 PMCID: PMC7481413 DOI: 10.7150/thno.48448] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/13/2020] [Indexed: 12/24/2022] Open
Abstract
Ulcerative colitis (UC) is featured with relapsing inflammation in the colon, where macrophages are recruited and polarized locally into M1 type to drive further inflammation. Pharmacotherapy of UC has exhibited limited efficacy, mostly due to the poor specificity. Methods: A macrophage-biomimetic nanomedicine was developed for targeted treatment of UC, which was derived from reactive oxygen species (ROS)-sensitive β-cyclodextrin, loaded with rosiglitazone, and coated with macrophage membrane. The ability of the nanomedicine in regulating macrophage polarization was examined at cellular level, and the macrophage-tropism driven targeted delivery into the inflammatory colon was investigated by ex vivo bio-imaging distribution assay. Furthermore, the nanomedicine's therapeutic efficacy was systemically examined in dextran sulfate sodium (DSS)-induced colitis model in mice. Results: The nanomedicine effectively polarized macrophages to M2 and protected epithelial cells from oxidative stress in vitro. In addition, macrophage-membrane led the nanomedicine to the inflammatory colon with a high targeting efficiency. In response to the elevated ROS in the inflammatory tissue, the nanomedicine released rosiglitazone specifically and regulated macrophage polarization in vivo. Macrophage membrane also assisted inflammation suppression by sequestering proinflammatory cytokines. Working in such a synergy, the nanomedicine exhibited significant therapeutic effects against UC in mice. Conclusions: This macrophage-biomimetic nanomedicine leverages the inflammatory tropism and inflammatory cytokine sequestration effects of macrophage membrane for targeted delivery and local inflammation suppression, the ROS-responsiveness of β-cyclodextrin-based matrix for specific payload release, and the macrophage-polarizing effect of rosiglitazone for inflammatory regulation, thereby exhibiting considerable therapeutic efficacy against UC in mice. This study offers important new insights on the design and development of biomimetic nanomaterials for inflammation regulations.
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Ben Hmida R, Frikha N, Bouguerra Neji S, Kit G, Medina F, Bouaziz M. Synthesis of high added value compounds through catalytic oxidation of 2‐phenylethanol: A Kinetic study. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21336] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rania Ben Hmida
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de SfaxUniversité de Sfax Sfax Tunisia
| | - Nourzed Frikha
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de SfaxUniversité de Sfax Sfax Tunisia
| | - Soumaya Bouguerra Neji
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de SfaxUniversité de Sfax Sfax Tunisia
| | - Geoffrey Kit
- Analytical Methods, Comparative Plant & Fungal BiologyRoyal Botanic Gardens Kew Richmond UK
| | - Francisco Medina
- Departament d'Enginyeria QuímicaUniversitat Rovira i Virgili Campus Sescelades Tarragona Spain
| | - Mohamed Bouaziz
- Laboratoire d'Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de SfaxUniversité de Sfax Sfax Tunisia
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Vahidi-Eyrisofla N, Hojati V, Yazdian MR, Zendehdel M, Shajiee H. Effects of Olive Leaf Extract on Prevention of Molecular, Histopathological, and Enzymatic Changes in Chicken Carbon Tetrachloride-Induced Liver Damage. Galen Med J 2019; 8:e1204. [PMID: 34466471 PMCID: PMC8343934 DOI: 10.31661/gmj.v8i0.1204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 05/06/2018] [Accepted: 01/12/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Today, the use of additives such as antibiotics and growth hormones that increase production efficiency in breeding broiler chickens has become inevitable. However, the use of such additives and antibiotics associated with side effects such as liver damage. Oxidative stress occurs due to an imbalance between oxidants and antioxidants. Studies have shown that olive leaves have an antioxidant effect on free radicals. This study was to evaluate the possible effect of olive leaf extract on carbon tetrachloride (CCL4)-induced liver damage (molecular and tissue) and changes of enzymes in chickens. MATERIALS AND METHODS A total of 50 chickens were used and classified into5 groups. Treatment groups received 0.5, 1, and 1.5 mg/kg of the olive leaf extract from day 21 of the experiment. Two control groups-healthy and poisoned-did not receive any extract. On the day 35 of the experiment, 1cc of CCL4 was dissolved with olive oil and injected intraperitoneally into the experimental and poisoned control groups. Blood and liver tissue sampling were performed. RESULTS The histopathology results showed that at high doses of olive leaf extract, the cells and vessels were regularly curable, and sinusoids were healthy. The expression of B-cell lymphoma 2 (BCL2) increased, and that of BH3 interacting domain death agonist (BID )decreased. Enzymatic tests, including serum glutamic-oxaloacetic transaminase, serum glutamic-pyruvic transaminase, alkaline phosphatase, gamma-glutamyl transpeptidase, showed a reduction in BID expression in the experimental group compared with the control group(P<0.005). CONCLUSION We concluded that olive leaf extract boosts the BCL2 -an antiapoptotic gene-and reduces BID -an apoptosis gene-in the liver of chicken. It prevents the liver cells from disintegrating and destroys sinusoids and liver blood vessels. The high doses of the olive leaf extract caused liver resistance to CCL4 toxicity in chicken.
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Affiliation(s)
| | - Vida Hojati
- Department of Biology, Damghan Branch, Islamic Azad University, Damghan, Iran
| | | | - Morteza Zendehdel
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Hooman Shajiee
- Department of Biology, Damghan Branch, Islamic Azad University, Damghan, Iran
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Singh S, Singh DK, Meena A, Dubey V, Masood N, Luqman S. Rutin protects t‑butyl hydroperoxide-induced oxidative impairment via modulating the Nrf2 and iNOS activity. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 55:92-104. [PMID: 30668448 DOI: 10.1016/j.phymed.2018.07.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 05/21/2018] [Accepted: 07/16/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Rutin (quercetin-3-O-rutinoside), a flavonoid, is predominantly found in the buckwheat, cranberries, mulberry and citrus fruits. It is used as a restorative in the preparation of herbal medicine, multivitamin and known to reduce the fate of heart attack. HYPOTHESIS We aimed to elucidate whether rutin attenuates oxidative stress and its possible mechanism of action in ameliorating the deleterious effect of t-BHP. We also provide evidence that rutin protects the antioxidant status of erythrocytes and liver via Nrf2 and iNOS pathway from oxidative stress. STUDY DESIGN/METHOD Human erythrocytes and mice liver were used for the evaluation of rutin's effect against t-BHP induced oxidative stress. The non-enzymatic (GSH, MDA, -CO, -SH) and enzymatic stress markers (SOD, CAT, GPx, GR and GST) were estimated by the colorimetric method. The level of Nrf2, iNOS, liver marker enzymes, triglycerides, cholesterol, HDL-cholesterol, albumin, BUN was measured using ELISA kits. Reactive oxygen species (ROS) was quantified using flow cytometry and fluorometry. RT-PCR was used for the quantification of Nrf2 and iNOS expression levels in the liver tissue of mice. In silico studies were done through receptor-ligand binding interaction. RESULTS Pre-treatment with the rutin ameliorated the toxic effect of t-BHP by modulating the basal level of GSH, -SH, MDA and -CO significantly (p < 0.01) with respect to untreated control. Rutin also protected the erythrocytes against the t-BHP-induced oxidative stress as evidenced by augmented activity of antioxidant enzymes (CAT, SOD, GPX, GR and GST). Furthermore, at the highest tested concentration (16.3 µM), it protected the morphology of the erythrocytes by decreasing the ROS level (p < 0.01). In addition, the lower MEF values of rutin (0.520 ± 0.005) alone or along with t-BHP (0.630 ± 0.021) indicated its non-toxic and protective behavior. The qPCR analyses revealed that t-BHP potently up-regulates the iNOS and down regulate the Nrf2 expression which was ameliorated with rutin treatment in a dose-dependent manner like silymarin. CONCLUSION Our findings demonstrate that rutin potentiates its beneficial aspect by displaying a profound role in iNOS-Nrf2 signaling pathway. Accordingly, it may be concluded that the dietary factors wherein rutin is an ingredient could be helpful in the maintenance of the intracellular redox-homeostasis and thus may be effective against oxidative stress related secondary complications.
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Affiliation(s)
- Shilpi Singh
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
| | - Dhananjay Kumar Singh
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
| | - Abha Meena
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
| | - Vijaya Dubey
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
| | - Nusrat Masood
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
| | - Suaib Luqman
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India.
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Cocetta V, Catanzaro D, Borgonetti V, Ragazzi E, Giron MC, Governa P, Carnevali I, Biagi M, Montopoli M. A Fixed Combination of Probiotics and Herbal Extracts Attenuates Intestinal Barrier Dysfunction from Inflammatory Stress in an In vitro Model Using Caco-2 Cells. Recent Pat Food Nutr Agric 2019; 10:62-69. [PMID: 30088455 DOI: 10.2174/2212798410666180808121328] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 08/02/2018] [Accepted: 08/05/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Inflammatory Bowel Diseases (IBD), are considered a growing global disease, with about ten million people being affected worldwide. Maintenance of intestinal barrier integrity is crucial for preventing IBD onset and exacerbations. Some recent patents regarding oily formulations containing probiotics (WO2010122107A1 and WO2010103374A9) and the use of probiotics for gastrointestinal complaints (US20110110905A1 and US9057112B2) exist, or are pending application. OBJECTIVE In this work, we studied the effect of a fixed combination of registered Lactobacillus reuteri and Lactobacillus acidophilus strains and herbal extracts in an in vitro inflammation experimental model. METHODS Caco-2 cell monolayer was exposed to INF-γ+TNF-α or to LPS; Trans Epithelial Electrical Resistance (TEER) and paracellular permeability were investigated. ZO-1 and occludin Tight Junctions (TJs) were also investigated by mean of immunofluorescence. RESULTS Pre-treatment with the fixed combination of probiotics and herbal extracts prevented the inflammation-induced TEER decrease, paracellular permeability increase and TJs translocation. CONCLUSIONS In summary, the fixed combination of probiotics and herbal extracts investigated in this research was found to be an interesting candidate for targeting the re-establishment of intestinal barrier function in IBD conditions.
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Affiliation(s)
- Veronica Cocetta
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Daniela Catanzaro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Vittoria Borgonetti
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
- Department of Physical Sciences, Earth and Environment, University of Siena, 53100 Siena, Italy
| | - Eugenio Ragazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Maria C Giron
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Paolo Governa
- Department of Physical Sciences, Earth and Environment, University of Siena, 53100 Siena, Italy
- SIFITLab, Italian Society of Phytotherapy, 53100 Siena, Italy
| | | | - Marco Biagi
- Department of Physical Sciences, Earth and Environment, University of Siena, 53100 Siena, Italy
- SIFITLab, Italian Society of Phytotherapy, 53100 Siena, Italy
| | - Monica Montopoli
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
- SIFITLab, Italian Society of Phytotherapy, 53100 Siena, Italy
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18
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Pearce SC, Coia HG, Karl JP, Pantoja-Feliciano IG, Zachos NC, Racicot K. Intestinal in vitro and ex vivo Models to Study Host-Microbiome Interactions and Acute Stressors. Front Physiol 2018; 9:1584. [PMID: 30483150 PMCID: PMC6240795 DOI: 10.3389/fphys.2018.01584] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/23/2018] [Indexed: 12/16/2022] Open
Abstract
The gut microbiome is extremely important for maintaining homeostasis with host intestinal epithelial, neuronal, and immune cells and this host-microbe interaction is critical during times of stress or disease. Environmental, nutritional, and cognitive stress are just a few factors known to influence the gut microbiota and are thought to induce microbial dysbiosis. Research on this bidirectional relationship as it pertains to health and disease is extensive and rapidly expanding in both in vivo and in vitro/ex vivo models. However, far less work has been devoted to studying effects of host-microbe interactions on acute stressors and performance, the underlying mechanisms, and the modulatory effects of different stressors on both the host and the microbiome. Additionally, the use of in vitro/ex vivo models to study the gut microbiome and human performance has not been researched extensively nor reviewed. Therefore, this review aims to examine current evidence concerning the current status of in vitro and ex vivo host models, the impact of acute stressors on gut physiology/microbiota as well as potential impacts on human performance and how we can parlay this information for DoD relevance as well as the broader scientific community. Models reviewed include widely utilized intestinal cell models from human and animal models that have been applied in the past for stress or microbiology research as well as ex vivo organ/tissue culture models and new innovative models including organ-on-a-chip and co-culture models.
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Affiliation(s)
- Sarah C Pearce
- Performance Nutrition Team, Combat Feeding Directorate, Natick Soldier Research, Development and Engineering Center, Natick, MA, United States
| | - Heidi G Coia
- National Research Council, The National Academies of Sciences, Engineering, and Medicine, Washington, DC, United States.,711th Human Performance Wing, Airforce Research Laboratory, Airman Systems Directorate, Human-Centered ISR Division, Molecular Mechanisms Branch, Wright-Patterson Air Force Base, Dayton, OH, United States
| | - J P Karl
- Military Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA, United States
| | - Ida G Pantoja-Feliciano
- Soldier Protection and Optimization Directorate, Natick Soldier Research, Development and Engineering Center, Natick, MA, United States
| | - Nicholas C Zachos
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Kenneth Racicot
- Performance Nutrition Team, Combat Feeding Directorate, Natick Soldier Research, Development and Engineering Center, Natick, MA, United States
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19
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Sakakura A, Pauze M, Namiki A, Funakoshi-Tago M, Tamura H, Hanaya K, Higashibayashi S, Sugai T. Chemoenzymatic synthesis of hydroxytyrosol monoesters and their suppression effect on nitric oxide production stimulated by lipopolysaccharides. Biosci Biotechnol Biochem 2018; 83:185-191. [PMID: 30319060 DOI: 10.1080/09168451.2018.1530970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Fatty acid monoesters of hydroxytyrosol [2-(3,4-dihydroxyphenyl)ethanol] were synthesized in two steps from tyrosol (4-hydroxyphenylethanol) by successive Candida antarctica lipase B-catalyzed chemoselective acylation on the primary aliphatic hydroxy group over phenolic hydroxy group in tyrosol, and 2-iodoxybenzoic acid (IBX)-mediated hydroxylation adjacent to the remaining free phenolic hydroxy group. Examination of their suppression effects on nitric oxide production stimulated by lipopolysaccharides in RAW264.7 cells showed that hydroxytyrosol butyrate exhibited the highest inhibition (IC50 7.0 μM) among the tested compounds.
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Affiliation(s)
| | - Martin Pauze
- a Faculty of Pharmacy , Keio University , Tokyo , Japan.,b Department of Chemistry , Graduate School of SIGMA Clermont , Aubiere Cedex , France
| | | | | | | | - Kengo Hanaya
- a Faculty of Pharmacy , Keio University , Tokyo , Japan
| | | | - Takeshi Sugai
- a Faculty of Pharmacy , Keio University , Tokyo , Japan
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20
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Sabino M, Cappelli K, Capomaccio S, Pascucci L, Biasato I, Verini-Supplizi A, Valiani A, Trabalza-Marinucci M. Dietary supplementation with olive mill wastewaters induces modifications on chicken jejunum epithelial cell transcriptome and modulates jejunum morphology. BMC Genomics 2018; 19:576. [PMID: 30068314 PMCID: PMC6090849 DOI: 10.1186/s12864-018-4962-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 07/26/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The Mediterranean diet is considered one of the healthier food habits and olive oil is one of its key components. Olive oil polyphenols are known to induce beneficial effects in several pathological conditions, such as inflammatory bowel disease, and to contrast the proliferation of cancer cells or hypercholesterolemia. Polyphenols are also present in waste products derived from the olive industry: olive mill wastewaters (OMWW) are rich in polyphenols and there is an increasing interest in using OMWW in animal nutrition. OMWW are attributed with positive effects in promoting chicken performance and the quality of food-derived products. However, a tissue-specific transcriptome target analysis of chickens fed with OMWW has never been attempted. RESULTS We explored the effect of dietary OMWW on the intestinal function in broilers. A morphological analysis of the jejunum revealed that OMWW reduced crypt depth, whereas no significant modifications were observed for villus height and the villus height/crypt depth ratio. An RNA Sequencing analysis was performed on isolated, intestinal, epithelial cells and 280 differentially expressed genes were found using a count-based approach. An enrichment analysis revealed that the majority of up regulated genes in the OMWW group were over-represented by the regulation of viral genome replication-related GO-Terms, whereas down regulated genes were mainly involved in cholesterol and lipid metabolism. CONCLUSIONS Our study showed how an industrial waste product can be recycled as a feed additive with a positive relapse. OMWW dietary supplementation can be a nutritional strategy to improve chicken performance and health, prevent intestinal damage, enhance innate immunity and regulate cholesterol metabolism and fat deposition.
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Affiliation(s)
- Marcella Sabino
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - Katia Cappelli
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - Stefano Capomaccio
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - Luisa Pascucci
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - Ilaria Biasato
- Department of Veterinary Sciences, University of Torino, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
| | - Andrea Verini-Supplizi
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - Andrea Valiani
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche, Via Gaetano Salvemini 1, 06126 Perugia, Italy
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21
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Domínguez-Perles R, Auñón D, Ferreres F, Gil-Izquierdo A. Physiological linkage of gender, bioavailable hydroxytyrosol derivatives, and their metabolites with systemic catecholamine metabolism. Food Funct 2018; 8:4570-4581. [PMID: 29119177 DOI: 10.1039/c7fo01124e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Despite extensive characterization of hydroxytyrosol (HT), there is a gap in the knowledge about its capacity to modulate catecholamine pathways. This study deals with the evaluation of the effects of HT, hydroxytyrosol acetate (HTA), and 3,4-dihydroxyphenylacetic acid (DOPAC), as well as their microbial metabolites (homovanillyl alcohol and tyrosol), on the excretion of catecholamines by UHPLC-ESI-QqQ-MS/MS upon administration at 1 and 5 mg kg-1 to male and female rats. The evaluation of urinary dopamine, norepinephrine, normetanephrine, and 3-methoxytyramine demonstrated 12.0- and 1.5-fold augmented excretions in males and females, respectively, due to the intake of HT derivatives. In addition, specific interconnections were identified between HT, HTA, DOPAC, and tyrosol and 3-methoxytyramine; between HTA and dopamine, norepinephrine, and normetanephrine; between HT, HTA, HVA, and tyrosol and dopamine, norepinephrine, and normetanephrine; and between HT, DOPAC, and HVA and dopamine and 3-methoxytyramine. Hence, a lack of linear relationships was observed between the oral administration of HT, HTA, and DOPAC and their plasma concentrations or urinary excretion levels after they were absorbed and distributed systemically. HT derivatives increase the synthesis of catecholamines in a derivative-, dosage-, and gender-dependent way.
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Affiliation(s)
- R Domínguez-Perles
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo, Edif. 25, 30100 Espinardo, Spain.
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22
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Deiana M, Serra G, Corona G. Modulation of intestinal epithelium homeostasis by extra virgin olive oil phenolic compounds. Food Funct 2018; 9:4085-4099. [DOI: 10.1039/c8fo00354h] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Extra virgin olive oil polyphenols concentrate at the intestinal level and, by modulating the microbiota, oxidative status and inflammation, contribute to prevent the onset or delay the progression of inflammatory/degenerative diseases.
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Affiliation(s)
- Monica Deiana
- Department of Biomedical Sciences
- University of Cagliari
- Cagliari
- Italy
| | - Gessica Serra
- Department of Food and Nutritional Sciences
- University of Reading
- Reading
- UK
| | - Giulia Corona
- Health Sciences Research Centre
- University of Roehampton
- SW15 4JD London
- UK
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23
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Protective effect of bioaccessible fractions of citrus fruit pulps against H 2O 2-induced oxidative stress in Caco-2 cells. Food Res Int 2017; 103:335-344. [PMID: 29389623 DOI: 10.1016/j.foodres.2017.10.066] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 10/19/2017] [Accepted: 10/28/2017] [Indexed: 12/19/2022]
Abstract
Fruit pulps from Navel (N) and Cara Cara (CC) oranges, and Clementine mandarin freshly harvested (M) and refrigerated stored (M12) were used to evaluate the cytoprotective effect of their bioaccessible fractions (BF) against H2O2-induced oxidative stress in Caco-2 cells. BF of samples preserved viability vs. H2O2 treated cells, reaching values similar to controls. Lipid peroxidation was reduced to levels of control cells, but M did not reach control values. ROS and mitochondrial membrane potential changes (Δψm) values were reduced compared with H2O2 treated cells, but without achieving control levels. A significant reduction in cell proportions in G1 phase and a significant increase in sub-G1 phase (apoptosis) of cell cycle was shown in H2O2 treated cells, and BF allowed a recovery close to control levels. Thus, BF of samples protect the cells from oxidative stress by preserving cell viability, mitochondrial membrane potential and correct cell cycle progression, and diminishing lipid peroxidation and ROS.
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Yeung PKK, Lai AKW, Son HJ, Zhang X, Hwang O, Chung SSM, Chung SK. Aldose reductase deficiency leads to oxidative stress-induced dopaminergic neuronal loss and autophagic abnormality in an animal model of Parkinson's disease. Neurobiol Aging 2016; 50:119-133. [PMID: 27960106 DOI: 10.1016/j.neurobiolaging.2016.11.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 10/20/2022]
Abstract
Fungicide exposure causes degeneration of dopaminergic neurons and contributes to Parkinson's disease (PD). Benomyl inhibits enzymes responsible for detoxifying the reactive dopamine metabolite 3,4-dihydroxyphenylacetaldehyde. Aldose reductase (AR) is known as tetrahydrobiopterin (BH4) reductase that generates BH4, a cofactor for tyrosine hydroxylase (TH) involved in dopamine synthesis. AR also acts as an aldehyde reductase involved in detoxifying 3,4-dihydroxyphenylacetaldehyde. In PD patients, the level of AR is significantly lower in the cerebellum. To determine if AR deficiency contributes to PD, AR wild-type (AR+/+) and knockout (AR-/-) mice were administrated with 1-methyl-4-phenyl -1,2,3,6- tetrahydropyridine (MPTP). The MPTP-treated AR-/- mice showed more severe behavioral deficits and brain damage than that of AR+/+ mice. Contrary to expectation, under normal or MPTP-treated condition, AR-/- mice showed a significant elevation of BH4 and dopamine in the midbrain, suggesting that either AR does not contribute to BH4 production, or other BH4 synthetic pathways are induced. The AR-/- brain showed upregulation of peroxynitrite, inducible nitric oxide synthase and downregulation of antioxidant enzymes, Cu/Zn superoxide dismutase (SOD) and peroxiredoxin 2 (Prx2), which indicate an increase in oxidative stress. In line with the animal data, pretreating the SH-SY5Y cells with AR inhibitors (Fidarestat or Epalrestat) before MPP+ treatment, increased severe cell death and mitochondrial fragmentation with downregulation of SOD were observed when compared to the MPP+ treatment alone. Cycloxygenase 2 (COX2), which can lead to the oxidation of dopamine, was upregulated in AR-/- brains. Autophagic proteins, beclin-1 and LC3B were also downregulated. The loss of dopaminergic neurons was associated with activation of p-ERK1/2. These findings suggest that AR plays an important role in protecting dopaminergic neuron against neurotoxic metabolites in PD.
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Affiliation(s)
- Patrick K K Yeung
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Angela K W Lai
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Hyo Jin Son
- Department of Biochemistry, University of Ulsan College of Medicine, Seoul, Korea
| | - Xu Zhang
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Onyou Hwang
- Department of Biochemistry, University of Ulsan College of Medicine, Seoul, Korea
| | - Stephen S M Chung
- Division of Science and Technology, United International College, Zhuhai, Guandong, China
| | - Sookja K Chung
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China; Research Center of Heart, Brain, Hormone and Healthy Aging, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
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Oleuropein Ameliorates Cisplatin-induced Hematological Damages Via Restraining Oxidative Stress and DNA Injury. Indian J Hematol Blood Transfus 2016; 33:348-354. [PMID: 28824236 DOI: 10.1007/s12288-016-0718-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 08/10/2016] [Indexed: 12/31/2022] Open
Abstract
The prevalence of cancer, in the world is increasing steadily. Despite intense research efforts, no approved therapy is yet available. Cisplatin is a chemotherapeutic drug but induces acute tissue injury. Oleuropein (OLE) is a major phenolic compound and used as a possible natural antioxidant, antimicrobial, and anticancer agent. We hypothesized that antioxidant activity of OLE may decrease cisplatin-induced oxidative stress and prevent to the development of chemotherapeutic complications including abnormality in hematological condition. Male Sprague Dawley rats were used in the experiments. Rats were randomly assigned to one of eight groups: control group; group treated with i.p. injection in a single dose of 7 mg/kg/day cisplatin; groups treated with 50, 100 and 200 mg/kg/day OLE (i.p.); and groups treated with OLE for 3 days starting at 24 h following cisplatin injection. First, hematological assessment was appreciated between control and experimental groups. Second, total oxidative stress (TOS) and total antioxidant capacity (TAC) levels of blood were measured by biochemical studies. In addition to this, oxidative DNA damage was determined by measuring as increases in 8-hydroxy-deoxyguanosine (8-OH-dG) adducts. The treatment with cisplatin elevated the TOS and 8-OH-dG levels that were then reversed by OLE. Reductions in antioxidant capacity with respect to corresponding controls were also restored by OLE treatment. These findings suggest that the OLE treatment against cisplatin-induced toxicity improves the function of blood cells and helps them to survive in the belligerent environment created by free radicals.
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Zinnai A, Venturi F, Quartacci MF, Sanmartin C, Favati F, Andrich G. Solid carbon dioxide to promote the extraction of extra-virgin olive oil. GRASAS Y ACEITES 2016. [DOI: 10.3989/gya.0493151] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Saha S, Sadhukhan P, Sinha K, Agarwal N, Sil PC. Mangiferin attenuates oxidative stress induced renal cell damage through activation of PI3K induced Akt and Nrf-2 mediated signaling pathways. Biochem Biophys Rep 2016; 5:313-327. [PMID: 28955838 PMCID: PMC5600319 DOI: 10.1016/j.bbrep.2016.01.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/28/2015] [Accepted: 01/12/2016] [Indexed: 12/19/2022] Open
Abstract
Background Mangiferin is a polyphenolic xanthonoid with remarkable antioxidant activity. Oxidative stress plays the key role in tert-butyl hydroperoxide (tBHP) induced renal cell damage. In this scenario, we consider mangiferin, as a safe agent in tBHP induced renal cell death and rationalize its action systematically, in normal human kidney epithelial cells (NKE). Methods NKE cells were exposed to 20 µM mangiferin for 2 h followed by 50 µM tBHP for 18 h. The effect on endogenous ROS production, antioxidant status (antioxidant enzymes and thiols), mitochondrial membrane potential, apoptotic signaling molecules, PI3K mediated signaling cascades and cell cycle progression were examined using various biochemical assays, FACS and immunoblot analyses. Results tBHP exposure damaged the NKE cells and decreased its viability. It also elevated the intracellular ROS and other oxidative stress-related biomarkers within the cells. However, mangiferin dose dependently, exhibited significant protection against this oxidative cellular damage. Mangiferin inhibited tBHP induced activation of different pro-apoptotic signals and thus protected the renal cells against mitochondrial permeabilization. Further, mangiferin enhanced the expression of cell proliferative signaling cascade molecules, Cyclin d1, NFκB and antioxidant molecules HO-1, SOD2, by PI3K/Akt dependent pathway. However, the inhibitor of PI3K abolished mangiferin's protective activity. Conclusions Results show Mangiferin maintains the intracellular anti-oxidant status, induces the expression of PI3K and its downstream molecules and shields NKE cells against the tBHP induced cytotoxicity. General significance Mangiferin can be indicated as a therapeutic agent in oxidative stress-mediated renal toxicity. This protective action of mangiferin primarily attributes to its potent antioxidant and antiapoptotic nature. Mangiferin relives oxidative stress on tBHP induced renal cytotoxicity. Mangiferin reduces tBHP-induced renal cell apoptosis. PI3K has been found to be the pivotal target of mangiferin. Mangiferin positively regulates cell cycle by modulating GSK3β and cyclin D1.
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Affiliation(s)
- Sukanya Saha
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Pritam Sadhukhan
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Krishnendu Sinha
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Namrata Agarwal
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Parames C Sil
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
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Kampmann M, Riedel N, Mo YL, Beckers L, Wichmann R. Tyrosinase catalyzed production of 3,4-dihydroxyphenylacetic acid using immobilized mushroom (Agaricus bisporus) cells and in situ adsorption. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ham H, Yoon SW, Kim IH, Kwak J, Lee JS, Jeong HS, Lee J. Protective effects of unsaponifiable matter from rice bran on oxidative damage by modulating antioxidant enzyme activities in HepG2 cells. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2014.12.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chiesi C, Fernandez-Blanco C, Cossignani L, Font G, Ruiz M. Alternariol-induced cytotoxicity in Caco-2 cells. Protective effect of the phenolic fraction from virgin olive oil. Toxicon 2015; 93:103-11. [DOI: 10.1016/j.toxicon.2014.11.230] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 11/18/2014] [Accepted: 11/20/2014] [Indexed: 11/24/2022]
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Dolan LC, Hofman-Hüther H, Amann N. Hydroxytyrosol: lack of clastogenicity in a bone marrow chromosome aberration study in rats. BMC Res Notes 2014; 7:923. [PMID: 25515426 PMCID: PMC4301881 DOI: 10.1186/1756-0500-7-923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 12/12/2014] [Indexed: 12/03/2022] Open
Abstract
Background Hydroxytyrosol is naturally found in olives, olive oil and wine, and is consumed as part of a normal diet. The substance may have utility as a preservative in a wide variety of foods due to its antioxidant, antimicrobial and amphipathic properties. The potential for hydroxytyrosol to cause chromosome aberrations in vitro had been tested previously, with positive results at high concentrations. An OECD Guideline 475 study (mammalian bone marrow chromosome aberration test) was conducted in rats with the oral limit dose of 2000 mg/kg bw to determine whether hydroxytyrosol is a clastogen in vivo. Results The oral limit dose of 2000 mg/kg hydroxytyrosol was well tolerated by most rats; however, some rats exhibited clinical signs that abated within 24 hours. Treatment with hydroxytyrosol did not significantly enhance the number of aberrant cells or the mitotic index 24 or 48 hours post-dose. The positive control (cyclophosphamide) induced the expected increase in chromosomal aberrations and a decrease in the mitotic index, confirming the validity of the assay. Conclusion An oral limit dose of 2000 mg/kg hydroxytyrosol does not induce chromosome aberrations in bone marrow cells of the rat. Accordingly, hydroxytyrosol is not a clastogen in vivo.
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Affiliation(s)
| | | | - Nicole Amann
- Wacker Chemie AG, Johannes-Hess-Str, 24, Burghausen 84489, Germany.
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Anter J, Tasset I, Demyda-Peyrás S, Ranchal I, Moreno-Millán M, Romero-Jimenez M, Muntané J, Luque de Castro MD, Muñoz-Serrano A, Alonso-Moraga Á. Evaluation of potential antigenotoxic, cytotoxic and proapoptotic effects of the olive oil by-product “alperujo”, hydroxytyrosol, tyrosol and verbascoside. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2014; 772:25-33. [DOI: 10.1016/j.mrgentox.2014.07.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 05/22/2014] [Accepted: 06/08/2014] [Indexed: 12/23/2022]
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Deffieux D, Gossart P, Quideau S. Facile and sustainable synthesis of the natural antioxidant hydroxytyrosol. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.02.134] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Song JL, Gao Y. Effects of methanolic extract form Fuzhuan brick-tea on hydrogen peroxide-induced oxidative stress in human intestinal epithelial adenocarcinoma Caco-2 cells. Mol Med Rep 2014; 9:1061-7. [PMID: 24399488 DOI: 10.3892/mmr.2014.1884] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 12/17/2013] [Indexed: 11/06/2022] Open
Abstract
The present study investigated the protective effect of methanolic extract from Fuzhuan brick‑tea (FME) on hydrogen peroxide (H2O2)‑induced oxidative stress in the human intestinal epithelial adenocarcinoma cell line Caco‑2. Caco‑2 cells were pretreated with different concentrations (50, 100 and 200 µg/ml) of FME for 2 h and then exposed to H2O2 (1 mM) for 6 h. FME did not exhibit a significant cytotoxic effect and increased the cell viability following H2O2 treatment by decreasing lipid peroxidation in Caco‑2 cells. To investigate the protective effect of FME on H2O2‑induced oxidative stress in Caco‑2 cells, the levels of intracellular glutathione (GSH) and the activity of the endogenous antioxidant enzymes catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH‑px) and glutathione S‑transferase (GST), were determined. FME significantly increased the level of GSH and the activity of antioxidant enzymes. The results from the present study demonstrated that FME has a protective effect on H2O2‑induced oxidative damage in Caco‑2 cells through the inhibition of lipid peroxidation and the increase in the activity of antioxidant enzymes. In addition, FME reduced the H2O2‑induced expression of interleukin‑8 at both the mRNA and protein levels in Caco‑2 cells.
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Affiliation(s)
- Jia-Le Song
- Department of Food Science and Nutrition, Pusan National University, Busan 609-735, Republic of Korea
| | - Yang Gao
- Department of Pharmacy, Northern Jiangsu People's Hospital Affiliated to Yangzhou University (Clinical Medical College of Yangzhou University), Yangzhou, Jiangsu 225001, P.R. China
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Zhou X, Xie F, Wang Y, Tang W, Zhou Y, Xiao Y. Evaluation of Antioxidant Activities of Extract from Beijing Roast Duck. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2014. [DOI: 10.3136/fstr.20.449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Liu YH, Lu YL, Han CH, Hou WC. Inhibitory activities of acteoside, isoacteoside, and its structural constituents against protein glycation in vitro. BOTANICAL STUDIES 2013; 54:6. [PMID: 28510849 PMCID: PMC5432847 DOI: 10.1186/1999-3110-54-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 08/13/2013] [Indexed: 06/05/2023]
Abstract
BACKGROUND Advanced glycation end products (AGE) are substances that can induce insulin resistance in adipocyte, hepatocyte and muscle cells. This resistance correlates highly with cardiovascular disease and diabetic complications. Acteoside (A), a phenylethanoid glycoside, is an active compound in several plants and traditional herbal medicines. Acteoside, its structural isomer, isoacteoside (I), and their constituents, caffeic acid (C) and 3,4-dihydroxyphenylethanol (D), were used in the study to investigate the inhibitory activity against AGE formations in vitro. RESULTS AGE formations were detected by anti-(Nϵ-(carboxymethyl)lysine (anti-CML), using bovine serum albumin (BSA)/glucose (glc) and BSA/galactose (gal) as models, or by anti-argpyrimidine (anti-AP), using BSA/methylglyoxal (MGO) as models. It was found that A, I, C, or D, each at 5 mM, could attenuate the CML formations detected by ELISA in the BSA/gal model of a 3-day or 5-day reaction, and showed significant differences (P < 0.01 or P < 0.001) compared to the control. However, these compounds showed a minor effect after a 7-day incubation. It was also found that C or D could lower the CML formations in the BSA/glc model and showed significant differences (P < 0.05 or P < 0.01) compared to the control after a 3-day, 5-day and 7-day reaction. It was found that A, I, C, or D, each at 0.5 mM or 5 mM, could attenuate the AP formations in the BSA/MGO model of a 3-day reaction and showed significant differences (P < 0.001) compared to the control. CONCLUSIONS The results suggest the potential anti-glycation activities of A and I in vitro may apply to cell models at higher glucose concentrations or to diabetic animal models, and need further investigation.
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Affiliation(s)
- Yuh-Hwa Liu
- Division of Gastroenterology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
- Department of Primary Care Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yeh-Lin Lu
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chuan-Hsiao Han
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Wen-Chi Hou
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, Taiwan
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
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Carrasco-Pozo C, Morales P, Gotteland M. Polyphenols protect the epithelial barrier function of Caco-2 cells exposed to indomethacin through the modulation of occludin and zonula occludens-1 expression. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:5291-5297. [PMID: 23668856 DOI: 10.1021/jf400150p] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The aim of this study was to determine the protective effect of quercetin, epigallocatechingallate, resveratrol, and rutin against the disruption of epithelial integrity induced by indomethacin in Caco-2 cell monolayers. Indomethacin decreased the transepithelial electrical resistance and increased the permeability of the monolayers to fluorescein-dextran. These alterations were abolished by all the tested polyphenols but rutin, with quercetin being the most efficient. The protective effect of quercetin was associated with its capacity to inhibit the redistribution of ZO-1 protein induced in the tight junction by indomethacin or rotenone, a mitochondrial complex-I inhibitor, and to prevent the decrease of ZO-1 and occludin expression induced by indomethacin. The fact that the antioxidant polyphenols assayed in this study differ in their protective capacity against the epithelial damage induced by indomethacin suggests that this damage is due to the ability of this agent to induce not only oxidative stress but also mitochondrial dysfunction.
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Affiliation(s)
- Catalina Carrasco-Pozo
- Laboratory of Microbiology and Probiotics, Institute of Nutrition and Food Technology (INTA) , Av. Macul 5540, Santiago, P.O. Box 138-11, Chile
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Sumer Z, Yildirim G, Sumer H, Yildirim S. Cytotoxic and antibacterial activity of the mixture of olive oil and lime cream in vitro conditions. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES : AJTCAM 2013; 10:137-43. [PMID: 24146514 PMCID: PMC3794404 DOI: 10.4314/ajtcam.v10i4.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The mixture of olive oil and lime cream has been traditionally used to treat external burns in the region of Hatay/Antakya and middle Anatolia. Olive oil and lime cream have been employed by many physicians to treat many ailments in the past. A limited number of studies have shown the antibacterial effect of olive oil and that it does not have any toxic effect on the skin. But we did not find any reported studies on the mixture of olive oil and lime cream. The aim of this paper is to investigate the cytotoxic and antibacterial activity of olive oil and lime cream individually or/and in combination in vitro conditions, by using disk-diffusion method and in cell culture. The main purpose in using this mixture is usually to clear burns without a trace. Agar overlay, MTT (Cytotoxicity assay) and antibacterial susceptibility tests were used to investigate the cytotoxic and antibacterial activity of olive oil and lime cream. We found that lime cream has an antibacterial activity but also cytotoxic on the fibroblasts. On the other hand olive oil has limited or no antibacterial effect and it has little or no cytotoxic on the fibroblasts. When we combined lime cream and olive oil, olive oil reduced its cytotoxic impact. These results suggest that mixture of olive oil and lime cream is not cytotoxic and has antimicrobial activity.
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Affiliation(s)
- Zeynep Sumer
- Department of Microbiology, Faculty of Medicine, Cumhuriyet University, 58140-Sivas, Turkey
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Durazzo A, Azzini E, Lazzé MC, Raguzzini A, Pizzala R, Maiani G, Palomba L, Maiani G. Antioxidants in Italian Head Lettuce (Lactuca sativa
var. capitata
L.) Grown in Organic and Conventional Systems under Greenhouse Conditions. J Food Biochem 2013. [DOI: 10.1111/jfbc.12025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Alessandra Durazzo
- Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione; via Ardeatina 546 00178 Rome Italy
| | - Elena Azzini
- Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione; via Ardeatina 546 00178 Rome Italy
| | - Maria Claudia Lazzé
- Dipartimento di Medicina Sperimentale; Sezione di Patologia Generale; Università degli Studi di Pavia; Pavia Italy
| | - Anna Raguzzini
- Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione; via Ardeatina 546 00178 Rome Italy
| | - Roberto Pizzala
- Dipartimento di Medicina Sperimentale; Sezione di Patologia Generale; Università degli Studi di Pavia; Pavia Italy
| | - Gianluca Maiani
- Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione; via Ardeatina 546 00178 Rome Italy
| | - Lara Palomba
- Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione; via Ardeatina 546 00178 Rome Italy
| | - Giuseppe Maiani
- Istituto Nazionale di Ricerca per gli Alimenti e la Nutrizione; via Ardeatina 546 00178 Rome Italy
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Protective effects of oligomeric and polymeric procyanidin fractions from defatted grape seeds on tert-butyl hydroperoxide-induced oxidative damage in HepG2 cells. Food Chem 2013. [DOI: 10.1016/j.foodchem.2012.10.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Casaburi I, Puoci F, Chimento A, Sirianni R, Ruggiero C, Avena P, Pezzi V. Potential of olive oil phenols as chemopreventive and therapeutic agents against cancer: A review of in vitro studies. Mol Nutr Food Res 2012. [DOI: 10.1002/mnfr.201200503] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan Casaburi
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Francesco Puoci
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Adele Chimento
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Rosa Sirianni
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Carmen Ruggiero
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Paola Avena
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
| | - Vincenzo Pezzi
- Department of Pharmaco-Biology and Pharmaceutical Sciences; University of Calabria; Italy
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Sarriá B, Mateos R, Gallardo E, Ramos S, Martín MÁ, Bravo L, Goya L. Nitroderivatives of olive oil phenols protect HepG2 cells against oxidative stress. Food Chem Toxicol 2012; 50:3752-8. [DOI: 10.1016/j.fct.2012.07.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 07/16/2012] [Accepted: 07/17/2012] [Indexed: 12/28/2022]
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Abstract
Olive oil, an oil rich in monounsaturated fatty acids (MUFCs) and minor constituents including phenolic compounds, is a major component of the Mediterranean diet. The potential health benefits of the Mediterranean diet were highlighted by the seminal Seven Countries Study, and more contemporary research has identified olive oil as a major element responsible for these effects. It is emerging that the phenolic compounds are the most likely candidates accounting for the cardioprotective and cancer preventative effects of extra virgin olive oil (EVOO). In particular, the phenolic compound, hydroxytyrosol has been identified as one of the most potent antioxidants found in olive oil. This review will briefly consider historical aspects of olive oil research and the biological properties of phenolic compounds in olive oil will be discussed. The focus of the discussion will be related to the mechanisms of action of hydroxytyrosol. Studies have demonstrated that hydroxytyrosol induces apoptosis and cell cycle arrest in cancer cells. Further, research has shown that hydroxytyrosol can prevent cardiovascular disease by reducing the expression of adhesion molecules on endothelial cells and preventing the oxidation of low-density lipoprotein (LDL). The molecular mechanisms accounting for these effects are reviewed.
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Affiliation(s)
- Haloom Rafehi
- Department of Epigenomic Medicine, Baker IDI Heart and Diabetes Institute, The Alfred Medical Research and Education Precinct, 75 Commercial Road, Melbourne, Victoria, Australia
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Charoenprasert S, Mitchell A. Factors influencing phenolic compounds in table olives (Olea europaea). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:7081-95. [PMID: 22720792 DOI: 10.1021/jf3017699] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The Mediterranean diet appears to be associated with a reduced risk of several chronic diseases including cancer and cardiovascular and Alzheimer's diseases. Olive products (mainly olive oil and table olives) are important components of the Mediterranean diet. Olives contain a range of phenolic compounds; these natural antioxidants may contribute to the prevention of these chronic conditions. Consequently, the consumption of table olives and olive oil continues to increase worldwide by health-conscious consumers. There are numerous factors that can affect the phenolics in table olives including the cultivar, degree of ripening, and, importantly, the methods used for curing and processing table olives. The predominant phenolic compound found in fresh olive is the bitter secoiridoid oleuropein. Table olive processing decreases levels of oleuropein with concomitant increases in the hydrolysis products hydroxytyrosol and tyrosol. Many of the health benefits reported for olives are thought to be associated with the levels of hydroxytyrosol. Herein the pre- and post-harvest factors influencing the phenolics in olives, debittering methods, and health benefits of phenolics in table olives are reviewed.
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Affiliation(s)
- Suthawan Charoenprasert
- Department of Food Science and Technology, University of California, One Shields Avenue, Davis, California 95616, United States
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Tunca B, Tezcan G, Cecener G, Egeli U, Ak S, Malyer H, Tumen G, Bilir A. Olea europaea leaf extract alters microRNA expression in human glioblastoma cells. J Cancer Res Clin Oncol 2012; 138:1831-44. [PMID: 22722712 DOI: 10.1007/s00432-012-1261-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 06/04/2012] [Indexed: 01/01/2023]
Abstract
PURPOSE Glioblastoma multiforme (GBM) is the most common and the most lethal form of primary malignant tumors in the central nervous system. There is an increasing need for the development of more efficient therapeutic approaches for the treatment of these patients. One of the most attractive cancer therapy methods to date is the induction of tumor cell death by certain phytochemicals. Interestingly, bioactive compounds have been shown to alter micro RNA (miRNA) expression involved in several biological processes at the posttranscriptional level. The present study aimed to evaluate whether Olea europaea leaf extract (OLE) has an anticancer effect and modulates miRNA expression in GBM. MATERIALS AND METHODS Firstly, the anti-proliferative activity of OLE and the nature of the interaction with temozolomide (TMZ) of OLE were tested in human glioblastoma cell line T98G cells by trypan blue and WST-1 assays and than realized miRNA PCR array analysis. Potential mRNA targets were analyzed bioinformatically. RESULTS OLE exhibited anti-proliferative effects on T98G cell lines. Cells were treated with temozolomide (TMZ) in the presence OLE, and changes to miRNA expression levels were identified by PCR array analysis. miRNA target genes are involved in cell cycle and apoptotic pathways. Specifically, miR-181b, miR-153, miR-145, miR-137, and let-7d were significantly upregulated after treatment with both TMZ and OLE. CONCLUSION Our results suggest that OLE modulates the expression of some miRNAs related to anticancer activity in GBM and the response to TMZ. Further studies and validations are needed, but we suggest that OLE might be used for in vivo studies and future medical drug studies.
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Affiliation(s)
- Berrin Tunca
- Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey.
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Ristagno G, Fumagalli F, Porretta-Serapiglia C, Orrù A, Cassina C, Pesaresi M, Masson S, Villanova L, Merendino A, Villanova A, Cervo L, Lauria G, Latini R, Bianchi R. Hydroxytyrosol attenuates peripheral neuropathy in streptozotocin-induced diabetes in rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:5859-5865. [PMID: 22594308 DOI: 10.1021/jf2049323] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Peripheral neuropathy is one of the most frequent and severe complications of diabetes. Hydroxytyrosol (HT), the major antioxidant polyphenolic compound of olive oil, has been investigated as a new potential treatment to counteract the progression of peripheral diabetic neuropathy in rats. An established model of streptozotocin-induced diabetes has been used. After confirmation of hyperglycemia, diabetic and nondiabetic animals were randomized to receive either a low dose or a high dose of HT, or the corresponding vehicle, for 6 weeks. At the end of the 6-week period of treatment, HT blunted plasma thiobarbituric acid-reactive substances increase (p < 0.05) and significantly reduced nerve conduction velocity (p < 0.05) and thermal nociception impairment in diabetic rats (p < 0.05). Sciatic nerve Na(+), K(+)-ATPase activity reduction was also abolished by HT (p < 0.05). The present study provides evidence of the therapeutic potential of the natural substance hydroxytyrosol in the early stage of diabetic neuropathy.
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Affiliation(s)
- Giuseppe Ristagno
- Mario Negri Institute for Pharmacological Research, via La Masa 19, 20156 Milan, Italy
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Nakbi A, Tayeb W, Dabbou S, Chargui I, Issaoui M, Ferih A, Ali ZB, Alsaif MA, Hammami M. Olive oil protects against 2,4‐dichlorophenoxyacetic acid‐induced oxidative renal dysfunction in adult rats. EUR J LIPID SCI TECH 2012. [DOI: 10.1002/ejlt.201100213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Amel Nakbi
- Biochemistry Laboratory, UR03ES08 ‘Human Nutrition & Metabolic Disorders’, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Wafa Tayeb
- Biochemistry Laboratory, UR03ES08 ‘Human Nutrition & Metabolic Disorders’, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Samia Dabbou
- Biochemistry Laboratory, UR03ES08 ‘Human Nutrition & Metabolic Disorders’, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Issam Chargui
- Laboratory of Histology and Cytogenetic, Faculty of Medicine of Monastir, Monastir, Tunisia
| | - Manel Issaoui
- Biochemistry Laboratory, UR03ES08 ‘Human Nutrition & Metabolic Disorders’, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Ameur Ferih
- Biochemistry Laboratory, UR03ES08 ‘Human Nutrition & Metabolic Disorders’, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Zohra Ben Ali
- Laboratory of Histology and Cytogenetic, Faculty of Medicine of Monastir, Monastir, Tunisia
| | - Mohammed A. Alsaif
- College of Applied Medical Sciences, VPP Unit, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed Hammami
- Biochemistry Laboratory, UR03ES08 ‘Human Nutrition & Metabolic Disorders’, Faculty of Medicine, University of Monastir, Monastir, Tunisia
- College of Applied Medical Sciences, VPP Unit, King Saud University, Riyadh, Saudi Arabia
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Wu MJ, Wang L, Weng CY, Yen JH. Antioxidant Activity of Methanol Extract of the Lotus Leaf (Nelumbo nucifera Gertn.). THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 31:687-98. [PMID: 14696672 DOI: 10.1142/s0192415x03001429] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this study, hydrogen peroxide ( H 2 O 2)-mediated Caco-2 cytotoxicity was employed to investigate the potential antioxidant activity of the methanol extract from the lotus leaf (Nelumbo nucifera Gertn.). A dose-dependent protective effect against reactive oxygen species (ROS)-induced cytotoxicity was observed when Caco-2 cells were treated with 10 mM H 2 O 2 in combination with the methanol extract of the lotus leaf (0.1–0.3 mg/ml). However, no significant effect was found when co-treating Caco-2 cells with 10 mM H 2 O 2 and α-tocopherol. In vitro assay revealed that the extract exhibited scavenging activities on free radicals and hydroxyl radicals, and metal binding ability as well as reducing power, which may explain in part the mechanism behind the extract's ability to protect cells from oxidative damage. In addition, the extract also exhibited concentration-dependent antioxidant activities against hemoglobin-induced linoleic acid peroxidation and Fenton reaction-mediated plasmid DNA oxidation.
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Affiliation(s)
- Ming-Jiuan Wu
- Institute of Biotechnology, Chia-Nan University of Pharmacy and Science, Tainan, Taiwan 717, ROC.
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50
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Ghanbari R, Anwar F, Alkharfy KM, Gilani AH, Saari N. Valuable nutrients and functional bioactives in different parts of olive (Olea europaea L.)-a review. Int J Mol Sci 2012; 13:3291-3340. [PMID: 22489153 PMCID: PMC3317714 DOI: 10.3390/ijms13033291] [Citation(s) in RCA: 284] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 02/13/2012] [Accepted: 02/16/2012] [Indexed: 02/05/2023] Open
Abstract
The Olive tree (Olea europaea L.), a native of the Mediterranean basin and parts of Asia, is now widely cultivated in many other parts of the world for production of olive oil and table olives. Olive is a rich source of valuable nutrients and bioactives of medicinal and therapeutic interest. Olive fruit contains appreciable concentration, 1-3% of fresh pulp weight, of hydrophilic (phenolic acids, phenolic alchohols, flavonoids and secoiridoids) and lipophilic (cresols) phenolic compounds that are known to possess multiple biological activities such as antioxidant, anticarcinogenic, antiinflammatory, antimicrobial, antihypertensive, antidyslipidemic, cardiotonic, laxative, and antiplatelet. Other important compounds present in olive fruit are pectin, organic acids, and pigments. Virgin olive oil (VOO), extracted mechanically from the fruit, is also very popular for its nutritive and health-promoting potential, especially against cardiovascular disorders due to the presence of high levels of monounsaturates and other valuable minor components such as phenolics, phytosterols, tocopherols, carotenoids, chlorophyll and squalene. The cultivar, area of production, harvest time, and the processing techniques employed are some of the factors shown to influence the composition of olive fruit and olive oil. This review focuses comprehensively on the nutrients and high-value bioactives profile as well as medicinal and functional aspects of different parts of olives and its byproducts. Various factors affecting the composition of this food commodity of medicinal value are also discussed.
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Affiliation(s)
- Rahele Ghanbari
- Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; E-Mail:
| | - Farooq Anwar
- Department of Chemistry, University of Sargodha, Sargodha-40100, Pakistan
| | - Khalid M. Alkharfy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; E-Mail:
| | - Anwarul-Hassan Gilani
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; E-Mail:
- Natural Products Research Division, Department of Biologicaland Biomedical Sciences, Aga Khan University Medical College, Karachi 74800, Pakistan; E-Mail:
| | - Nazamid Saari
- Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; E-Mail:
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