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Abd-Allah H, Youshia J, Abdel Jaleel GA, Hassan A, El Madani M, Nasr M. Gastroprotective Chitosan Nanoparticles Loaded with Oleuropein: An In Vivo Proof of Concept. Pharmaceutics 2024; 16:153. [PMID: 38276520 PMCID: PMC10819437 DOI: 10.3390/pharmaceutics16010153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/31/2023] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Oleuropein is the main constituent of olive leaf extract, and it has shown antioxidant and gastroprotective properties against gastric ulcers. Chitosan nanoparticles are known for their mucoadhesive abilities, and consequently, they can increase the retention time of drugs in the gastrointestinal tract. Therefore, loading oleuropein onto chitosan nanoparticles is expected to enhance its biological efficiency. Oleuropein-loaded chitosan nanoparticles were prepared and characterized for particle size, surface charge, in vitro release, and anti-inflammatory activity. Their in vivo efficacy was assessed by measuring specific inflammatory and protective biomarkers, along with histopathological examination. The optimum oleuropein chitosan nanoparticles were cationic, had a size of 174.3 ± 2.4 nm and an entrapment efficiency of 92.81%, and released 70% of oleuropein within 8 h. They recorded a lower IC50 in comparison to oleuropein solutions for membrane stabilization of RBCs (22.6 vs. 25.6 µg/mL) and lipoxygenase inhibition (7.17 vs. 15.6 µg/mL). In an ethanol-induced gastric ulcer in vivo model, they decreased IL-1β, TNF-α, and TBARS levels by 2.1, 1.7, and 1.3 fold, respectively, in comparison to increments caused by exposure to ethanol. Moreover, they increased prostaglandin E2 and catalase enzyme levels by 2.4 and 3.8 fold, respectively. Immunohistochemical examination showed that oleuropein chitosan nanoparticles markedly lowered the expression of IL-6 and caspase-3 in gastric tissues in comparison to oleuropein solution. Overall, oleuropein chitosan nanoparticles showed superior gastroprotective effects to oleuropein solution since comparable effects were demonstrated at a 12-fold lower drug dose, delineating that chitosan nanoparticles indeed enhanced the potency of oleuropein as a gastroprotective agent.
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Affiliation(s)
- Hend Abd-Allah
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; (H.A.-A.)
| | - John Youshia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; (H.A.-A.)
| | | | - Azza Hassan
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Cairo 12613, Egypt
| | | | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; (H.A.-A.)
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Guzmán-Gómez O, García-Rodríguez RV, Pérez-Gutierrez S, Rivero-Ramírez NL, García-Martínez Y, Pablo-Pérez SS, Pérez-Pastén-Borja R, Cristóbal-Luna JM, Chamorro-Cevallos G. Protective Effect of the Phycobiliproteins from Arthrospira maxima on Indomethacin-Induced Gastric Ulcer in a Rat Model. PLANTS (BASEL, SWITZERLAND) 2023; 12:1586. [PMID: 37111811 PMCID: PMC10146595 DOI: 10.3390/plants12081586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/02/2023] [Accepted: 04/07/2023] [Indexed: 06/19/2023]
Abstract
Gastric ulcers (GU) constitute a disease with a global prevalence ≈ 8.09 million. Of their causes, non-steroidal anti-inflammatory drugs (NSAIDs) such as indomethacin (IND) rank as the second most frequent etiologic agent. The pathogenic process of gastric lesions is given by the overproduction of oxidative stress, promotion of inflammatory processes, and inhibition of prostaglandin synthesis. Spirulina Arthrospira maxima (SP) is a cyanobacterium with a wide variety of substances with high nutritional and health values such as phycobiliproteins (PBPs) that have outstanding antioxidant activity, anti-inflammatories effects, and accelerate the wound healing process. This study aimed to determine the protective effect of PBPs in GU induced by IND 40 mg/kg. Our results show that the PBPs protected against IND-induced damage with a dose-dependent effect. At a dose of 400 mg/kg, a marked decrease in the number of lesions is observed, as well as the recovery of the main markers of oxidative stress damage (MDA) and antioxidant species (SOD, CAT, GPx) at close to baseline levels. The evidence derived from the present investigation suggests that the antioxidant effect of PBPs, together with their reported anti-inflammatory effects to accelerate the wound healing process, is the most reliable cause of their antiulcerogenic activity in this GU model.
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Affiliation(s)
- Oscar Guzmán-Gómez
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Mexico City C.P. 07738, Mexico; (O.G.-G.); (Y.G.-M.); (S.S.P.-P.); (R.P.-P.-B.)
| | - Rosa Virginia García-Rodríguez
- Instituto de Química Aplicada, Universidad Veracruzana, Luis Castelazo Ayala S/N Col. Industrial Ánimas, Xalapa C.P. 91190, Mexico;
| | - Salud Pérez-Gutierrez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Mexico City C.P. 04960, Mexico;
| | - Nora Lilia Rivero-Ramírez
- Departamento de Morfología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Mexico City C.P. 11340, Mexico;
| | - Yuliana García-Martínez
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Mexico City C.P. 07738, Mexico; (O.G.-G.); (Y.G.-M.); (S.S.P.-P.); (R.P.-P.-B.)
| | - Saudy Saret Pablo-Pérez
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Mexico City C.P. 07738, Mexico; (O.G.-G.); (Y.G.-M.); (S.S.P.-P.); (R.P.-P.-B.)
| | - Ricardo Pérez-Pastén-Borja
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Mexico City C.P. 07738, Mexico; (O.G.-G.); (Y.G.-M.); (S.S.P.-P.); (R.P.-P.-B.)
| | - José Melesio Cristóbal-Luna
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Mexico City C.P. 07738, Mexico; (O.G.-G.); (Y.G.-M.); (S.S.P.-P.); (R.P.-P.-B.)
| | - Germán Chamorro-Cevallos
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Mexico City C.P. 07738, Mexico; (O.G.-G.); (Y.G.-M.); (S.S.P.-P.); (R.P.-P.-B.)
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Scicchitano S, Vecchio E, Battaglia AM, Oliverio M, Nardi M, Procopio A, Costanzo F, Biamonte F, Faniello MC. The Double-Edged Sword of Oleuropein in Ovarian Cancer Cells: From Antioxidant Functions to Cytotoxic Effects. Int J Mol Sci 2023; 24:ijms24010842. [PMID: 36614279 PMCID: PMC9821453 DOI: 10.3390/ijms24010842] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/24/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023] Open
Abstract
Oleuropein plays a key role as a pro-oxidant as well as an antioxidant in cancer. In this study, the activity of oleuropein, in an in vitro model of ovarian (OCCs) and breast cancer cells (BCCs) was investigated. Cell viability and cell death were analyzed. Oxidative stress was measured by CM-H2DCFDA flow cytometry assay. Mitochondrial dysfunction was evaluated based on mitochondrial reactive oxygen species (ROS) and GPX4 protein levels. Further, the effects on iron metabolism were analyzed by measuring the intracellular labile iron pool (LIP). We confirmed that high doses of oleuropein show anti-proliferative and pro-apoptotic activity on HEY and MCF-7 cells. Moreover, our results indicate that low doses of oleuropein impair cell viability without affecting the mortality of cells, and also decrease the LIP and ROS levels, keeping them unchanged in MCF-7 cells. For the first time, our data show that low doses of oleuropein reduce erastin-mediated cell death. Interestingly, oleuropein decreases the levels of intracellular ROS and LIP in OCCs treated with erastin. Noteworthily, we observed an increased amount of ROS scavenging enzyme GPX4 together with a consistent reduction in mitochondrial ROS, confirming a reduction in oxidative stress in this model.
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Affiliation(s)
- Stefania Scicchitano
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Eleonora Vecchio
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
- Interdepartmental Centre of Services, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Anna Martina Battaglia
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Manuela Oliverio
- Department of Health Science, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Monica Nardi
- Department of Health Science, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Antonio Procopio
- Department of Health Science, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
- Correspondence:
| | - Francesco Costanzo
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
- Interdepartmental Centre of Services, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Flavia Biamonte
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
- Interdepartmental Centre of Services, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
| | - Maria Concetta Faniello
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy
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Yang D, Li J, Liang C, Tian L, Shi C, Hui N, Liu Y, Ling M, Xin L, Wan M, Li H, Zhao Q, Ren X, Liu H, Cao W. Syringa microphylla Diels: A comprehensive review of its phytochemical, pharmacological, pharmacokinetic, and toxicological characteristics and an investigation into its potential health benefits. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 93:153770. [PMID: 34678528 DOI: 10.1016/j.phymed.2021.153770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/31/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Syringa microphylla Diels is a plant in the family Syringa Linn. For hundreds of years, its flowers and leaves have been used as a folk medicine for the treatment of cough, inflammation, colds, sore throat, acute hepatitis, chronic hepatitis, early liver cirrhosis, fatty liver, and oesophageal cancer. PURPOSE For the first time, we have comprehensively reviewed information on Syringa microphylla Diels that is not included in the Pharmacopoeia, clarified the pharmacological mechanisms of Syringa microphylla Diels and its active ingredients from a molecular biology perspective, compiled in vivo and in vitro animal experimental data and clinical data, and summarized the toxicology and pharmacokinetics of Syringa microphylla Diels. The progress in toxicology research is expected to provide a theoretical basis for the development of new drugs from Syringa microphylla Diels, a natural source of compounds that are potentially beneficial to human health. METHODS The PubMed, Google Scholar, China National Knowledge Infrastructure, Web of Science, SciFinder Scholar and Thomson Reuters databases were utilized to conduct a comprehensive search of published literature as of July 2021 to find original literature related to Syringa microphylla Diels and its active ingredients. RESULTS To date, 72 compounds have been isolated and identified from Syringa microphylla Diels, and oleuropein, verbascoside, isoacteoside, echinacoside, forsythoside B, and eleutheroside B are the main active components. These compounds have antioxidant, antibacterial, anti-inflammatory, and neuroprotective effects, and their safety and effectiveness have been demonstrated in long-term traditional applications. Molecular pharmacology experiments have indicated that the active ingredients of Syringa microphylla Diels exert their pharmacological effects in various ways, primarily by reducing oxidative stress damage via Nrf2/ARE pathway regulation, regulating inflammatory factors and inducing apoptosis through the MAPK and NF-κB pathways. CONCLUSION This comprehensive review of Syringa microphylla Diels provides new insights into the correlations among molecular mechanisms, the importance of toxicology and pharmacokinetics, and potential ways to address the limitations of current research. As Syringa microphylla Diels is a natural low-toxicity botanical medicine, it is worthy of development and utilization and is an excellent choice for treating various diseases.
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Affiliation(s)
- Dan Yang
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Jingyi Li
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Chengyuan Liang
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Lei Tian
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China; College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Chunyang Shi
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Nan Hui
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Yuan Liu
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Mei Ling
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Liang Xin
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Minge Wan
- School of Medicine and Pharmacy, Shaanxi University of Business & Commerce, Xi'an 712046, PR China
| | - Han Li
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Qianqian Zhao
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Xiaodong Ren
- Medical College, Guizhou University, Guiyang 550025, PR China.
| | - Hong Liu
- Zhuhai Jinan Selenium Source Nanotechnology Co., Ltd., Hengqin New Area, Zhuhai 519030, PR China.
| | - Wenqiang Cao
- Zhuhai Jinan Selenium Source Nanotechnology Co., Ltd., Hengqin New Area, Zhuhai 519030, PR China
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Baldari S, Manni I, Di Rocco G, Paolini F, Palermo B, Piaggio G, Toietta G. Reduction of Cell Proliferation by Acute C 2H 6O Exposure. Cancers (Basel) 2021; 13:cancers13194999. [PMID: 34638483 PMCID: PMC8508324 DOI: 10.3390/cancers13194999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/17/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Alcoholic beverages and acetaldehyde formed during their metabolism are carcinogenic to humans. Alcohol drinking may affect bone marrow stem cell niche, suppressing physiological hematopoiesis and ultimately reducing the organism’s capacity to fight against cancer, infections, and to promote tissue regeneration. To elucidate in vivo the cellular mechanisms associated with alcohol intake toxicity, we used a mouse model in which proliferating cells produce the firefly’s light-emitting protein. In this animal, alcohol exposure transiently “turns off the light”, indicating a negative effect on cell proliferation in the bone marrow and spleen. Pharmacological treatment with substances interfering with ethanol metabolism, reducing acetaldehyde production, partially restores the physiological cell proliferation rate. Over 560 million people worldwide have increased susceptibility to acetaldehyde toxicity and 4% of cancer deaths are attributable to alcohol. Our model might provide a suitable tool to further investigate in vivo the effects of alcohol metabolism and aldehydes production on carcinogenesis. Abstract Endogenous acetaldehyde production from the metabolism of ingested alcohol exposes hematopoietic progenitor cells to increased genotoxic risk. To develop possible therapeutic strategies to prevent or reverse alcohol abuse effects, it would be critical to determine the temporal progression of acute ethanol toxicity on progenitor cell numbers and proliferative status. We followed the variation of the cell proliferation rate in bone marrow and spleen in response to acute ethanol intoxication in the MITO-Luc mouse, in which NF-Y-dependent cell proliferation can be assessed in vivo by non-invasive bioluminescent imaging. One week after ethanol administration, bioluminescent signals in bone marrow and spleen decreased below the level corresponding to physiological proliferation, and they progressively resumed to pre-treatment values in approximately 4 weeks. Boosting acetaldehyde catabolism by administration of an aldehyde dehydrogenase activity activator or administration of polyphenols with antioxidant activity partially restored bone marrow cells’ physiological proliferation. These results indicate that in this mouse model, bioluminescent alteration reflects the reduction of the physiological proliferation rate of bone marrow progenitor cells due to the toxic effect of aldehydes generated by alcohol oxidation. In summary, this study presents a novel view of the impact of acute alcohol intake on bone marrow cell proliferation in vivo.
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Affiliation(s)
- Silvia Baldari
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
| | - Isabella Manni
- Stabilimento Allevatore Fornitore Utilizzatore (SAFU), IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (I.M.); (G.P.)
| | - Giuliana Di Rocco
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy;
| | - Francesca Paolini
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
| | - Belinda Palermo
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
| | - Giulia Piaggio
- Stabilimento Allevatore Fornitore Utilizzatore (SAFU), IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (I.M.); (G.P.)
| | - Gabriele Toietta
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
- Correspondence: ; Tel.: +39-06-5266-2604
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Karakoç MD, Sekkin S. Effects of Oleuropein on Epirubicin and Cyclophosphamide Combination Treatment in Rats. Turk J Pharm Sci 2021; 18:420-429. [PMID: 34496482 DOI: 10.4274/tjps.galenos.2020.69008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objectives Oleuropein is the main bioactive polyphenolic compound in olive leaves, olive, and olive oil. Its anticancer, antioxidant, and antiinflammatory effects have been proven through several in vitro and in vivo studies. This study aimed to explore the effects of oleuropein on cyclophosphamideand epirubicin-induced toxicity in female rats. Materials and Methods Seven groups containing eight rats in each group were formed. Four cycles of 16 mg/kg/week of cyclophosphamide and 2.5 mg/kg/week of epirubicin were administered to the rats through intraperitoneal injection. Oleuropein (150 mg/kg/week) was simultaneously applied via oral gavage. The effects of oleuropein were examined with hemogram tests in whole blood samples and biochemical analysis in serum samples. Interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in the serum samples were analyzed through enzyme-linked immunosorbent assay. Subsequently, a comet assay was performed using lymphocyte DNA. The levels of oxidant [i.e., malondialdehyde (MDA)] and antioxidants [i.e., catalase (CAT), glutathione (GSH), and superoxide dismutase (SOD)] were measured in the heart, kidney, and liver tissues. Results Oleuropein could reduce DNA damage and serum TNF-α and IL-6 levels. It also ameliorated some hemogram and biochemical parameters that deteriorated due to antineoplastic drugs. It increased the amounts of antioxidants (GSH, SOD, and CAT) and reduced the level of MDA in the heart, kidney, and liver tissues. Conclusion Oleuropein might be a beneficial agent against toxicity caused by the combination treatment of cyclophosphamide and epirubicin. Further studies should be performed to demonstrate the protective effects of oleuropein against antineoplastic induced-toxicity precisely.
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Affiliation(s)
- Metin Deniz Karakoç
- Aydın Adnan Menderes University Health Sciences Institute, Department of Pharmacology and Toxicology, Aydın, Turkey
| | - Selim Sekkin
- Aydın Adnan Menderes University Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology, Aydın, Turkey
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Tureyen A, Ince S. Magnolin Alleviates Gastric Ulcer Induced by Ethanol/HCl in Mice Model via Oxidative Stress and NF-κB Pathway. INT J PHARMACOL 2021. [DOI: 10.3923/ijp.2021.380.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Tureyen A, Ince S. Bupropion Inhibits Oxidant Status and Inflammation in Ethanol-Induced Chronic Gastritis in Rats. INT J PHARMACOL 2021. [DOI: 10.3923/ijp.2021.281.291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Amani F, Allahbakhshian Farsani M, Gholami M, Aghamiri SMR, Bakhshandeh M, Hossein Mohammadi M. The protective effect of oleuropein against radiation-induced cytotoxicity, apoptosis, and genetic damage in cultured human lymphocytes. Int J Radiat Biol 2020; 97:179-193. [PMID: 32970517 DOI: 10.1080/09553002.2020.1793014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
PURPOSE The aim of this study was to evaluate the effects of oleuropein radiation protection and to find an effective radioprotector. MATERIALS AND METHOD Human mononuclear cells were treated with oleuropein at the concentration of 100 μM (optimum concentration), incubated for 24 h, and then exposed to 2 Gy gamma-rays. The anti-radiation effect of oleuropein was assessed by MTT assay, flow cytometry, comet assay, and micronucleus (MN) assay. RESULTS It was found that pretreatment with oleuropein (25, 50, 75, 100, 200, 400, and 800 nM, and 1, 5, 10, 15, 20, 25, 30, 40, 50, 75, 100, 125, 150, 175, and 200 µM) significantly increased the percentage of cell viability compared to the irradiated group (p < .001). Moreover, oleuropein treatment with the above concentrations defined without gamma-ray did not show any cytotoxicity effect in human mononuclear cells. The LD50/24h dose was calculated as 2.9 Gy, whereas by 200, 150, 50, and 100 µM oleuropein prior to radiation (1, 2,and 4 Gy), radiation LD50/24h increased to 3.36, 3.54, 3.81, and >4 Gy, in that order. A very noticeable dose-modifying factor (DMF) of 1.16, 1.23, 1.31, and 1.72 was observed for 200, 150, 50, and 100 µM, in order. Therefore, 100 µM of oleuropein was selected as the desirable dose for radio-protection trial, and 2 Gy gamma-rays were used for further research. Human mononuclear cells treatment with oleuropein (100 µM) prior to 2 Gy gamma-rays significantly decreased apoptosis, genomic damage, and MN occurrence in human mononuclear caused by gamma-radiation (p < .001). Furthermore, treatment with oleuropein (100 µM) without radiation did not lead to apoptosis, genotoxicity, or clastogenic effects caused by oleuropein in human mononuclear cells. CONCLUSION The results revealed that oleuropein is able to significantly reduce cytotoxicity, apoptosis, genotoxic, and clastogenic effects of gamma-rays.
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Affiliation(s)
- Fatemeh Amani
- Radiation Technology Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mehrdad Gholami
- Department of Medical Physics, Lorestan University of Medical Sciences, Khorramabad, Iran.,Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | | | - Mohsen Bakhshandeh
- Radiation Technology Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Mohammadi
- Department of Hematology and Blood Banking, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Association between Polyphenol Intake and Gastric Cancer Risk by Anatomic and Histologic Subtypes: MCC-Spain. Nutrients 2020; 12:nu12113281. [PMID: 33114671 PMCID: PMC7692577 DOI: 10.3390/nu12113281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 02/08/2023] Open
Abstract
Several anticancer properties have been largely attributed to phenolics in in vivo and in vitro studies, but epidemiologic evidence is still scarce. Furthermore, some classes have not been studied in relation to gastric cancer (GC). The aim of this study was to assess the relationship between the intake of phenolic acids, stilbenes, and other phenolics and the risk of developing GC and its anatomical and histological subtypes. We used data from a multi-case-control study (MCC-Spain) obtained from different regions of Spain. We included 2700 controls and 329 GC cases. Odds ratios (ORs) were calculated using mixed effects logistic regression considering quartiles of phenolic intake. Our results showed an inverse association between stilbene and lignan intake and GC risk (ORQ4 vs. Q1 = 0.47; 95% CI: 0.32–0.69 and ORQ4 vs. Q1 = 0.53; 95% CI: 0.36–0.77, respectively). We found no overall association between total phenolic acid and other polyphenol class intake and GC risk. However, hydroxybenzaldehydes (ORQ4 vs. Q1 = 0.41; 95% CI: 0.28–0.61), hydroxycoumarins (ORQ4 vs. Q1 = 0.49; 95% CI: 0.34–0.71), and tyrosols (ORQ4 vs. Q1 = 0.56; 95% CI: 0.39–0.80) were inversely associated with GC risk. No differences were found in the analysis by anatomical or histological subtypes. In conclusion, a diet high in stilbenes, lignans, hydroxybenzaldehydes, hydroxycoumarins, and tyrosols was associated with a lower GC risk. Further prospective studies are needed to confirm our results.
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Seyedan AA, Dezfoulian O, Alirezaei M. Satureja khuzistanica Jamzad essential oil prevents doxorubicin-induced apoptosis via extrinsic and intrinsic mitochondrial pathways. Res Pharm Sci 2020; 15:481-490. [PMID: 33628290 PMCID: PMC7879789 DOI: 10.4103/1735-5362.297851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 05/10/2020] [Accepted: 10/06/2020] [Indexed: 11/06/2022] Open
Abstract
Background and purpose: In addition to hepato-cardiotoxicity, doxorubicin (DOX) also induces nephrotoxicity which is considered as the limiting factor for this drug in cancer therapy. The effect of carvacrol, the main active ingredient of Satureja khuzistanica Jamzad essential oil (SKEO), in the amelioration of DOX- induced cardiotoxicity is well established. The aim of the present study was to evaluate the possible protective effects of SKEO against DOX-induced nephrotoxicity. Experimental approach: SKEO was intraperitoneally administered at 50, 100, and 200 mg/kg to male Wistar rats for 12 consecutive days. Five groups of animals including negative control (saline), vehicle (Tween® 20), SKEO50, DOX (at 8th day of treatment), and SKEO50 + DOX were assessed. Findings/Results: Creatinine, urea concentrations, and caspase-3 activity significantly elevated in the serum of DOX treated group in contrast to other groups after injection of a single dose of DOX (20 mg/kg i.p.), however, SKEO reduced glutathione peroxidase and caspase-3 activity against other groups while SKEO + DOX was also significantly reduced caspase-3 activity against DOX group. Other biochemical markers changes were not significant. Immunohistochemical assessment unveiled that SKEO + DOX improved the activity of Bcl-2 family proteins (Bax and Bcl-2) and caspase-8 protein to the advantage of cell survival in both intrinsic mitochondrial and extrinsic pathway down streamed to the terminal caspase-3 apoptotic molecule., Conclusion and implications: It was concluded that SKEO could have influential effects against apoptosis induced by DOX, but not improperly ameliorate oxidative stress.
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Affiliation(s)
- Ali Al Seyedan
- Department of Pathobiology, School of Veterinary Medicine, Lorestan University, Khorramabad, I.R. Iran
| | - Omid Dezfoulian
- Department of Pathobiology, School of Veterinary Medicine, Lorestan University, Khorramabad, I.R. Iran
| | - Masoud Alirezaei
- Department of Biochemistry, School of Veterinary Medicine, Lorestan University, Khorramabad, I.R. Iran
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Alzokaky AAM, Abdelkader EM, El-Dessouki AM, Khaleel SA, Raslan NA. C-phycocyanin protects against ethanol-induced gastric ulcers in rats: Role of HMGB1/NLRP3/NF-κB pathway. Basic Clin Pharmacol Toxicol 2020; 127:265-277. [PMID: 32306544 DOI: 10.1111/bcpt.13415] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/27/2020] [Accepted: 04/09/2020] [Indexed: 12/13/2022]
Abstract
Gastric ulcer is a widespread inflammatory disease with high socio-economic burden. C-phycocyanin is one of the active constituents of Spirulina microalgae, and although it is well known for its antioxidant and anti-inflammatory properties, its protective effects against gastric ulcer have not yet been identified. High-mobility group box 1 (HMGB1) is a nuclear protein that, once secreted extracellularly, initiates several inflammatory reactions, and it is involved in the pathogenesis of gastric ulcer. The aim of the present study was to investigate the anti-inflammatory and anti-ulcerogenic effects of C-phycocyanin against ethanol-induced gastric ulcer targeting HMGB1/NLRP3/NF-κB pathway. Ulcer induction showed increase in HMGB1 expression through activation of nucleotide-binding domain and leucine-rich repeat-containing protein 3 (NLRP3) inflammasome and nuclear factor kappa p65 (NF-κB p65). Moreover, oxidative stress and inflammatory markers were elevated in the ulcer-treated group compared to the normal control group. However, pre-treatment with C-phycocyanin significantly reduced HMGB1 expression via suppression of NLRP3/NF-κB, oxidative markers, IL-1β, tumour necrosis factor-α (TNF-α) and ulcer index value. These results were consistent with histopathological and immunohistochemistry examination. Thus, C-phycocyanin is a potential therapeutic strategy with anti-inflammatory and anti-ulcerogenic effects against ethanol-induced gastric ulcer.
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Affiliation(s)
- Amany Abdel-Mageed Alzokaky
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo, Egypt.,Pharmacology and biochemistry Department, Faculty of Pharmacy, Horus University, New Damietta, Egypt
| | - Eman M Abdelkader
- Department of Pharmacology & biochemistry, Faculty of Pharmacy, Delta University for Science &Technology, Mansoura, Egypt
| | - Ahmed M El-Dessouki
- Department of Pharmacology, Faculty of Pharmacy, Ahram Canadian University (ACU), Cairo, Egypt
| | - Sahar A Khaleel
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo, Egypt.,Division of Cardiovascular Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Nahed A Raslan
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo, Egypt.,Department of Emergency, AL-Ghad International College for applied medical Sciences, Jeddah, Saudi Arabia
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13
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Benvenutti RC, Dalla Vecchia CA, Locateli G, Serpa PZ, Lutinski JA, Rodrigues Junior SA, Corralo V, Gutiérrez MV, Vilegas W, Somensi LB, Longo B, Knihs JF, Mota da Silva L, de Andrade SF, Roman Junior WA. Gastroprotective activity of hydroalcoholic extract of the leaves of Urera baccifera in rodents. JOURNAL OF ETHNOPHARMACOLOGY 2020; 250:112473. [PMID: 31836518 DOI: 10.1016/j.jep.2019.112473] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 12/01/2019] [Accepted: 12/09/2019] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE The species Urera baccifera (L.) Gaudich. ex Wedd. (Urticaceae) is native to the Americas and is distributed widely throughout Brazil, where it is known as urtiga-brava, urtiga-vermelha, or urtigão. The leaves are often used as anti-inflammatory and antirheumatic agents and for the treatment of gastric disorders. However, the pharmacological mode of action underlying the gastroprotection induced by this species has not been investigated. AIM OF THE STUDY To contribute to the knowledge of the gastroprotective mode of action of the hydroalcoholic extract of U. baccifera (HEU) leaves. MATERIALS AND METHODS Antiulcerogenic effect of HEU against ethanol-induced acute gastric ulcer was evaluated in rats and mice at doses of 3-300 mg/kg. NO-synthase inhibitor (L-NAME), SH blocker (NEM), cyclooxygenase inhibitor (indomethacin) and alpha 2-adrenergic receptor antagonist yohimbine were used to evaluate the participation of cytoprotective factors in HEU gastroprotection. Moreover, the levels of reduced gluthatione (GSH) and cytokines (TNF, IL-6, IL4 and IL-10), as well as the enzymatic activity of gluthatione S-transferase (GST), myeloperoxidase (MPO), superoxide dismutase (SOD) and catalase (CAT) were measure. Moreover, the samples were analyzed histologically and the antisecretory capability of HEU were quantified using pylorus ligated rats. RESULTS The phytochemical analysis of HEU (UPLC/ESI-IT-MS) identified the flavonoids diosmetin and apigenin glucuronide. Furthermore, HEU decreased the occurrence of ethanol-induced ulcers at 30 and 300 mg/kg by 57% and 66%, respectively, compared with the vehicle. The gastroprotective effects were accompanied by increased GSH levels and GST and SOD activity as well as by reduced MPO activity in vivo and in vitro, revealing antioxidant effects and inhibition of neutrophil infiltration. The beneficial effects of 30 and 300 mg/kg HEU were also observed upon histological analyses. Regarding the mode of action, the gastroprotective effect of HEU was abolished by the pre-administration of L-NAME, NEM, indomethacin or yohimbine. Moreover, HEU was able to decrease the IL-6, IL-4 and IL-10 in ulcerated tissue, as well as the pepsin activity of the gastric juice in pylorus-ligated rats. CONCLUSION Together, the results confirmed that the gastroprotection elicited by HEU was due reduction in oxidative damage, neutrophil migration, and peptic activity. This work validates the popular use of U. baccifera to treat gastric disorders and supports important future research for the identification of gastroprotective molecules from this species.
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Affiliation(s)
- Régis Carlos Benvenutti
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Cristian Alex Dalla Vecchia
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Gelvani Locateli
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Patrícia Zanotelli Serpa
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Junir Antonio Lutinski
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | | | - Vanessa Corralo
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil
| | - Max Vidal Gutiérrez
- Instituto de Biociências, Universidade Estadual Paulista, CEP 70770-901, São Vicente, SP, Brazil
| | - Wagner Vilegas
- Instituto de Biociências, Universidade Estadual Paulista, CEP 70770-901, São Vicente, SP, Brazil
| | - Lincon Bordignon Somensi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Bruna Longo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Jessica Ferreira Knihs
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Luisa Mota da Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Sérgio Faloni de Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil
| | - Walter Antônio Roman Junior
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Comunitária da Região de Chapecó, CEP 89809-900, Chapecó, SC, Brazil.
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Basha M, Salama A, Noshi SH. Soluplus® based solid dispersion as fast disintegrating tablets: a combined experimental approach for enhancing the dissolution and antiulcer efficacy of famotidine. Drug Dev Ind Pharm 2020; 46:253-263. [DOI: 10.1080/03639045.2020.1716376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mona Basha
- Department of Pharmaceutical Technology, National Research Centre, Cairo, Egypt
| | - Abeer Salama
- Department of Pharmacology, National Research Centre, Cairo, Egypt
| | - Shereen H. Noshi
- Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo, Egypt
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15
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Cavaca LA, López-Coca IM, Silvero G, Afonso CA. The olive-tree leaves as a source of high-added value molecules: Oleuropein. BIOACTIVE NATURAL PRODUCTS 2020. [DOI: 10.1016/b978-0-12-817903-1.00005-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Yin M, Jiang N, Guo L, Ni Z, Al-Brakati AY, Othman MS, Abdel Moneim AE, Kassab RB. Oleuropein suppresses oxidative, inflammatory, and apoptotic responses following glycerol-induced acute kidney injury in rats. Life Sci 2019; 232:116634. [DOI: 10.1016/j.lfs.2019.116634] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/30/2019] [Accepted: 07/03/2019] [Indexed: 12/18/2022]
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17
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Pinto IR, Chaves HV, Vasconcelos AS, de Sousa FCF, Santi-Gadelha T, de Lacerda JTJG, Ribeiro KA, Freitas RS, Maciel LM, Filho SMP, Viana AFSC, de Almeida Gadelha CA, Filho GC, de Paulo Teixeira Pinto V, Pereira KMA, Rodrigues e Silva AA, Bezerra MM. Antiulcer and Antioxidant Activity of a Lectin from Mucuna pruriens Seeds on Ethanol- induced Gastropathy: Involvement of Alpha-2 Adrenoceptors and Prostaglandins. Curr Pharm Des 2019; 25:1430-1439. [DOI: 10.2174/1381612825666190524081433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/10/2019] [Indexed: 01/01/2023]
Abstract
Ethnopharmacological Relevance:Mucuna pruriens (Mp) belongs to Leguminosae family, it is native of tropical regions and used to treat several maladies such as urinary, neurological, and menstruation disorders, constipation, edema, fever, tuberculosis, ulcers, diabetes, arthritis, dysentery, and cardiovascular diseases. Mp seeds are rich in bioactive compounds, for instance, lectins, a heterogeneous group of proteins and glycoproteins with a potential role as therapeutic tools for several conditions, including gastric disorders. This study investigated the acute toxicity, gastroprotective, and antioxidant activities of a lectin from Mucuna pruriens seeds (MpLec) on ethanol-induced gastropathy model in mice.Materials & Methods:Mice received MpLec (5 or 10 mg/kg; i.v.) and were observed for acute toxicity signs; in another experimental series, mice were pre-treated with MpLec (0.001; 0.01 or 0.1 mg/kg, i.v.), ranitidine (80 mg/kg, p.o.), or saline (0.3 mL/30g, i.v.) before ethanol 99.9% (0.2 mL/animal, p.o.), and euthanized 30 min after ethanol challenge. Macroscopic and microscopic gastric aspects, biochemical parameters (tissue hemoglobin levels, iron-induced lipid peroxidation, GSH content, SOD activity, and gastric mucosal PGE2) were measured. Additionally, pharmacological tools (yohimbine, indomethacin, naloxone, L-NAME) were opportunely used to clarify MpLec gastroprotective mechanisms of action.Results:No toxicity signs nor death were observed at acute toxicity tests. MpLec reduced ethanol-induced gastric damage, edema, and hemorrhagic patches formation, as well as decreased lipid peroxidation, SOD activity, and increased GSH content. Yohimbine and indomethacin prevented MpLec effects, suggesting the involvement of alpha-2 adrenoceptors and prostaglandins in the MpLec-mediated effects.Conclusion:MpLec does not present toxicity signs and shows gastroprotective and antioxidant activities via alpha-2 adrenoceptors and prostaglandins in the ethanol-induced gastropathy model.
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Affiliation(s)
- Isabela Ribeiro Pinto
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | - Hellíada V. Chaves
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | | | | | - Tatiane Santi-Gadelha
- Federal University of Paraiba, Department of Molecular Biology, Joao Pessoa - Paraiba, Brazil
| | | | - Kátia Alves Ribeiro
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | - Raul Sousa Freitas
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | - Lara Mendes Maciel
- Federal University of Ceara, Faculty of Medicine, Sobral - Ceara, Brazil
| | | | | | | | - Gerardo Cristino Filho
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
| | | | | | | | - Mirna Marques Bezerra
- Federal University of Ceara, Master of Biotechnology Degree Program, Sobral - Ceara, Brazil
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Castejon ML, Sánchez-Hidalgo M, Aparicio-Soto M, González-Benjumea A, Fernández-Bolaños JG, Alarcón-de-la-Lastra C. Olive secoiridoid oleuropein and its semisynthetic acetyl-derivatives reduce LPS-induced inflammatory response in murine peritoneal macrophages via JAK-STAT and MAPKs signaling pathways. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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19
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Taskan MM, Balci Yuce H, Karatas O, Gevrek F, Toker H. Evaluation of the effect of oleuropein on alveolar bone loss, inflammation, and apoptosis in experimental periodontitis. J Periodontal Res 2019; 54:624-632. [PMID: 31032945 DOI: 10.1111/jre.12662] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 03/19/2019] [Accepted: 03/30/2019] [Indexed: 12/13/2022]
Abstract
THE OBJECTIVE The present study aimed to evaluate the effects of oleuropein on ligature-induced alveolar bone loss. In this respect, osteoblastic activity, osteoclastic activity, inflammatory markers, and apoptosis were evaluated. BACKGROUND Oleuropein is a flavonoid, which has potent anti-inflammatory and bone-protective effects. METHODS Thirty-two Wistar rats were divided into four experimental groups as following: control (C, n = 8) group; periodontitis (P, n = 8) group; periodontitis and low-dose oleuropein group (12 mg/kg/day oleuropein, LDO group, n = 8); and periodontitis and high-dose oleuropein group (24 mg/kg/day oleuropein, HDO group, n = 8). Periodontitis was induced via ligatures. Study period was 14 days, and animals were sacrificed at end of this period. Mandibles were examined via a stereomicroscope and underwent histological procedures. Osteoblast, tartrate-resistant acid phosphatase (TRAP)-positive osteoclast, and inflammatory cell counts were determined in hematoxylin-eosin stained sections. Inducible nitric oxide synthase (iNOS), bone morphogenetic protein-4, the cluster of differentiation (CD)-68, cysteine-aspartic proteases-3 (Caspase 3), and B-cell lymphoma-2 (Bcl-2) expressions were evaluated via immunohistochemistry. RESULTS Periodontitis group had highest alveolar bone loss, and these levels significantly decreased in LDO and HDO groups. Both 12 and 24 mg/kg oleuropein groups significantly increased osteoblast cell counts and decreased TRAP-positive osteoclast and inflammatory cell counts. BMP-4 and bcl-2 expressions were elevated in oleuropein groups while caspase-3 expressions decreased. iNOS and CD68 were higher in periodontitis group compared to control group, but there was no significant difference between other groups. CONCLUSION Oleuropein successfully decreased alveolar bone loss as a result of decreased osteoclastic activity, inflammation, and apoptosis and increased osteoblastic activity.
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Affiliation(s)
- Mehmet Murat Taskan
- Department of Periodontology, Faculty of Dentistry, Tokat Gaziosmanpasa University, Tokat, Turkey
| | - Hatice Balci Yuce
- Department of Periodontology, Faculty of Dentistry, Tokat Gaziosmanpasa University, Tokat, Turkey
| | - Ozkan Karatas
- Department of Periodontology, Faculty of Dentistry, Tokat Gaziosmanpasa University, Tokat, Turkey
| | - Fikret Gevrek
- Department of Histology and Embryology, Faculty of Medicine, Tokat Gaziosmanpasa University, Tokat, Turkey
| | - Hülya Toker
- Department of Periodontology, Gulhane Faculty of Dentistry, University of Medical Sciences, Ankara, Turkey
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20
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Koc K, Cerig S, Ozek NS, Aysin F, Yildirim S, Cakmak O, Hosseinigouzdagani M, Geyikoglu F. The efficacy of oleuropein against non-steroidal anti-inflammatory drug induced toxicity in rat kidney. ENVIRONMENTAL TOXICOLOGY 2019; 34:67-72. [PMID: 30259636 DOI: 10.1002/tox.22658] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 09/01/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
Indomethacin is generally used in clinical therapeutics as a non-steroidal anti-inflammatory drug. However, its use has been limited due to the gastrointestinal and renal toxic effects of this drug. These toxic effects were associated with not only the inhibition of prostaglandin synthesis but also drug-elevated oxidative stress. To ameliorate these toxicities, natural antioxidants can be used as an alternative and/or combination therapies. Therefore, the current study was conducted to assess the renoprotective effects of oleuropein against indomethacin-induced renal damages. Male Sprague-Dawley rats were pretreated with oleuropein (75, 150, and 300 mg/kg), and then treated with indomethacin (25 mg/kg). To evaluate kidney function, serum blood urea nitrogen, uric acid, and creatinine were measured. In addition, prostaglandin E2 , tumor necrosis factor-alpha, endothelial nitric oxide synthase, caspase-3, oxidant/antioxidant status, and 8-Oxo-2'-deoxyguanosine levels were determined for the antioxidative and anti-inflammatory effects of oleuropein. Tissue sections were also histopathologically assessed. The biochemical and histopathological analysis proved the toxic effects of indomethacin on kidney. However, the pretreatment with oleuropein (300 mg/kg) protects kidney from indomethacin-induced damages. Our study proved that prior administration of oleuropein has renoprotective activity against indomethacin-associated toxicities.
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Affiliation(s)
- Kubra Koc
- Department of Biology, Faculty of Science|, Ataturk University, Erzurum, Turkey
| | - Salim Cerig
- Department of Biotechnology, Science Faculty, Bartin University, Bartin, Turkey
| | - Nihal Simsek Ozek
- East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Ferhunde Aysin
- East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary, Ataturk University, Erzurum, Turkey
| | - Ozge Cakmak
- Department of Biology, Faculty of Science|, Ataturk University, Erzurum, Turkey
| | | | - Fatime Geyikoglu
- Department of Biology, Faculty of Science|, Ataturk University, Erzurum, Turkey
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21
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Koc K, Cerig S, Ucar S, Colak S, Bakir M, Erol HS, Yildirim S, Hosseinigouzdagani M, Simsek Ozek N, Aysin F, Fehim Kocpinar E, Budak H, Geyikoglu F. Gastroprotective effects of oleuropein and thymol on indomethacin-induced gastric ulcer in Sprague-Dawley rats. Drug Chem Toxicol 2018; 43:441-453. [PMID: 30426792 DOI: 10.1080/01480545.2018.1530261] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Ethnopharmacological studies demonstrated that thymol (Thym) and oleuropein (Ole) have therapeutic potential for gastric ulcers. The molecular mechanism underlying the gastroprotective effects of these compounds have not been elucidated yet especially for their individual and combination use at high dose. Therefore, this study was conducted to explore their gastroprotective mechanisms on indomethacin (Indo)-induced gastric ulcer model. Ole (50,100, 250, and 500 mg/kg) and Thym (50,100, 200, and 500 mg/kg) were orally administered to the rats 10 min before the induction of ulcer with Indo. The combination of 500 mg/kg doses of Ole and Thym were applied. The gastric mucosa was evaluated histopathologically. Moreover, TAC/TOS, tumor necrosis factor-alpha (TNF-α), prostaglandin E2 (PGE2), endothelial nitric oxide synthase (eNOS), and caspase-3 levels were assessed by ELISA and the caspase-3 and TNF-α expressions were quantified by qRT-PCR. Indo-induced histopathological changes while Ole and Thym pretreatment prevented these effects. Unlike the 500 mg/kg dose of Ole treatment, the 500 mg/kg dose of Thym administration enhanced these damages. The decreased TAC, PGE2 levels and increased TOS, eNOS, TNF-α, caspase-3 levels were obtained in Indo group. However, these changes were reversed by Ole and Thym groups except the 500 mg/kg dose of Thym and the combination treatment groups. Similar trends were observed in the caspase-3 and TNF-α expression levels. These results demonstrated that enhanced inflammation, oxidant/antioxidant imbalance, and apoptotic activities were occurred in Indo, 500 mg/kg dose of Thym and the combination treatment groups while not in the other groups. The findings demonstrated the gastroprotective ability of Ole and low doses of Thym in gastric ulcer models.
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Affiliation(s)
- Kubra Koc
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Salim Cerig
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Serap Ucar
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Suat Colak
- Department of Biology, Erzincan University, Erzincan, Turkey
| | - Murat Bakir
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Huseyin Serkan Erol
- Department of Biochemistry, Faculty of Veterinary, Ataturk University, Erzurum, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary, Ataturk University, Erzurum, Turkey
| | | | - Nihal Simsek Ozek
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Ferhunde Aysin
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey.,East Anatolian High Technology Research and Application Center (DAYTAM), Ataturk University, Erzurum, Turkey
| | - Enver Fehim Kocpinar
- Department of Medical Laboratory, Techniques Vocational School of Health Services, Alparslan University, Mus, Turkey
| | - Harun Budak
- Department of Molecular Biology and Genetics, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Fatime Geyikoglu
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
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Amelioration of Ethanol-Induced Gastric Ulcers in Rats Pretreated with Phycobiliproteins of Arthrospira ( Spirulina) Maxima. Nutrients 2018; 10:nu10060763. [PMID: 29899291 PMCID: PMC6024796 DOI: 10.3390/nu10060763] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/06/2018] [Accepted: 06/08/2018] [Indexed: 12/17/2022] Open
Abstract
Phycobiliproteins of Arthrospira (Spirulina) maxima have attracted attention because of their potential therapeutic antioxidant properties. The aim of this study was to assess the possible antiulcerogenic activity of these phycobiliproteins (ExPhy) against ethanol-induced gastric ulcers in rats. To explore the possible mechanisms of action, we examined antioxidant defense enzymes (e.g., catalase, superoxide dismutase, and glutathione peroxidase), as well as the level of lipid peroxidation (MDA) and the histopathological changes in the gastric mucosa. Intragastric administration of ExPhy (100, 200, and 400 mg/kg body weight) significantly lowered the ulcer index value compared to the ulcer control group (p < 0.05). The greatest protection was provided by the concentration of 400 mg/kg. The histological study supported the observed gastroprotective activity of ExPhy, showing a reduced inflammatory response. Moreover, the alcohol-induced decrease in stomach antioxidant enzyme activity found in the ulcer control group was prevented by ExPhy pretreatment. Furthermore, ExPhy reversed the ethanol-induced increase in lipid peroxidation. In summary, the antiulcerogenic potential of ExPhy may be due, at least in part, to its anti-oxidant and anti-inflammatory effects.
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Yoo JH, Lee JS, Lee YS, Ku S, Lee HJ. Protective effect of bovine milk against HCl and ethanol–induced gastric ulcer in mice. J Dairy Sci 2018; 101:3758-3770. [DOI: 10.3168/jds.2017-13872] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 01/06/2018] [Indexed: 12/23/2022]
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Lombardo L, Grasso F, Lanciano F, Loria S, Monetti E. Broad-Spectrum Health Protection of Extra Virgin Olive Oil Compounds. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/b978-0-444-64057-4.00002-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
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Cavaca LAS, Afonso CAM. Oleuropein: A Valuable Bio-Renewable Synthetic Building Block. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lídia A. S. Cavaca
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
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Yang Y, Yin B, Lv L, Wang Z, He J, Chen Z, Wen X, Zhang Y, Sun W, Li Y, Zhao Y. Gastroprotective effect of aucubin against ethanol-induced gastric mucosal injury in mice. Life Sci 2017; 189:44-51. [DOI: 10.1016/j.lfs.2017.09.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/11/2017] [Accepted: 09/13/2017] [Indexed: 01/10/2023]
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Castejón ML, Rosillo MÁ, Montoya T, González-Benjumea A, Fernández-Bolaños JG, Alarcón-de-la-Lastra C. Oleuropein down-regulated IL-1β-induced inflammation and oxidative stress in human synovial fibroblast cell line SW982. Food Funct 2017; 8:1890-1898. [PMID: 28426090 DOI: 10.1039/c7fo00210f] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic and systemic inflammatory autoimmune disease mainly characterized by aggressive hyperproliferation of synovial fibroblasts (SFs). It is accompained by a massive infiltration of inflammatory immune cells inducing progressive matrix degradation, destruction of cartilage and bone erosion through the production of inflammatory mediators. Oleuropein is the most prevalent phenolic component in olive leaves, seed, pulp and peel of unripe olives and is responsible for the characteristic bitter taste of unprocessed olives. This secoiridoid possesses well-documented pharmacological properties, including antioxidant and anti-inflammatory properties, and is available as a food supplement in Mediterranean countries. However, to date, anti-arthritic effects of oleuropein on SFs have not been yet elucidated. Thus, the aim of the present study was to investigate the potential effects of oleuropein, on IL-1β-induced production of inflammatory mediators and oxidative stress in the human synovial sarcoma cell line (SW982). In order to gain a better insight into mechanisms of action, signaling pathways were also explored. Cell viability was determined using the sulforhodamine B (SRB) assay. The expression of inflammatory cytokines IL-6, TNF-α, MMP-1 and MMP-3 was evaluated by ELISA. Moreover, changes in the protein expression of cyclooxygenase (COX)-2, microsomal prostaglandin E synthase-1 (mPGES-1) as well as mitogen-activated protein kinase (MAPKs), nuclear factor kappa B (NF-κB), and nuclear factor-erythroid 2-related and heme oxygenase-1 (HO-1) signalling pathways were analysed by western blot. Oleuropein exerted anti-inflammatory and anti-oxidant effects via down-regulation of MAPK and NF-κB signaling pathways and induction of Nrf2-linked HO-1 controlling the production of inflammatory mediators decreasing IL-6 and TNF-α cytokines, MMP-1 and MMP-3 levels and mPGES-1 and COX-2 overexpression. Thus, oleuropein might provide a basis for developing a new dietary strategy for the prevention and management of RA.
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Beber AP, de Souza P, Boeing T, Somensi LB, Mariano LNB, Cury BJ, Burci LM, da Silva CB, Simionatto E, de Andrade SF, da Silva LM. Constituents of leaves from Bauhinia curvula Benth. exert gastroprotective activity in rodents: role of quercitrin and kaempferol. Inflammopharmacology 2017; 26:539-550. [PMID: 28176198 DOI: 10.1007/s10787-017-0313-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/21/2017] [Indexed: 12/29/2022]
Abstract
The Bauhinia genus is known as "Pata-de-Vaca" and a wide variety of these species are used in Brazilian folk medicine due to their gastroprotective properties. This study aimed to investigate the antiulcer efficacy of the hydroalcoholic extract from B. curvula (HEBC) leaves, as well as its semi-purified fraction (SPFr) and the contribution of their phytochemicals constituents for this effect. For that, ethanol 60%/HCl 0.3 M- and indomethacin-induced gastric ulcer were performed in rodents. Gastric ulcerated tissues were processed for histological, histochemical and biochemical analysis. The oral treatment with HEBC and SPFr decreased the gastric ulcer induced by ethanol/HCl in mice and by indomethacin (only HEBC) in rats. The gastroprotective effect of HEBC was abolished in mice pretreated with Nω-Nitro-L-arginine methyl ester, N-Ethylmaleimide, glibenclamide or indomethacin. Both HEBC and SPFr reduced myeloperoxidase activity in parallel with a decrease of lipoperoxides content at the site of the lesion. On the other hand, HEBC did not alter volume, pH, total acidity or pepsin activity of acid gastric secretion in rats, and neither inhibited the in vitro H(+),K(+)-ATPase activity. Additionally, the compounds identified and isolated from the SPFr, the flavonoids quercitrin (65%) and kaempferol (35%), were able to diminish the extent of ulcerated area induced by both ethanol/HCl and indomethacin. Taking together, these findings show that B. curvula extracts present gastroprotective effect, mainly explained by the presence of flavonoids quercitrin and kaempferol, which may possibly improve the defensive factors of gastric mucosa.
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Affiliation(s)
- Ana Paula Beber
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
| | - Priscila de Souza
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil.
| | - Thaise Boeing
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
| | - Lincon Bordignon Somensi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
| | - Luísa Nathália Bolda Mariano
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
| | - Benhur Judah Cury
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
| | - Ligia Moura Burci
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Estadual do Paraná, Curitiba, Brazil
| | | | - Euclésio Simionatto
- Programa de Pós-Graduação em Química, Universidade Estadual do Mato Grosso do Sul, Campo Grande, Brazil
| | - Sérgio Faloni de Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
| | - Luísa Mota da Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí-UNIVALI, Rua Uruguai, 458, 88302-901, Itajaí, SC, Brazil
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Serreli G, Incani A, Atzeri A, Angioni A, Campus M, Cauli E, Zurru R, Deiana M. Antioxidant Effect of Natural Table Olives Phenolic Extract Against Oxidative Stress and Membrane Damage in Enterocyte-Like Cells. J Food Sci 2017; 82:380-385. [PMID: 28071793 DOI: 10.1111/1750-3841.13613] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/01/2016] [Accepted: 12/12/2016] [Indexed: 12/31/2022]
Abstract
The phenolic fraction of a naturally fermented cultivar of table olives, "Tonda di Cagliari," was investigated for the ability to protect Caco-2 cells against oxidative stress and membrane damage induced by tert-butyl hydroperoxyde (TBH). TBH exposure resulted in an alteration of cellular redox status, with an increase in reactive oxygen species (ROS) and a decrease in reduced glutathione (GSH) level. A loss of the epithelial integrity, as indicated by the decrease of the transepithelial electrical resistance value, was also observed over time, together with an intense lipid peroxidation process. The olives phenolic extract significantly counteracted ROS generation and subsequent alteration of monolayer integrity and membrane oxidative damage. The protective action of the extract is likely due to the scavenging ability of its main components, as hydroxytyrosol, oleuropein, and verbascoside among the secoiridoids and derivatives. Since olives phenolic compounds concentrate in the intestinal lumen, they may be a useful tool in the prevention of intestinal disorders related to oxidative damage.
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Affiliation(s)
- Gabriele Serreli
- Dept. of Biomedical Sciences, Unit of Experimental Pathology, Univ. of Cagliari, Cittadella Universitaria, SS 554, Monserrato (CA), 09042, Italy
| | - Alessandra Incani
- Dept. of Biomedical Sciences, Unit of Experimental Pathology, Univ. of Cagliari, Cittadella Universitaria, SS 554, Monserrato (CA), 09042, Italy
| | - Angela Atzeri
- Dept. of Biomedical Sciences, Unit of Experimental Pathology, Univ. of Cagliari, Cittadella Universitaria, SS 554, Monserrato (CA), 09042, Italy
| | - Alberto Angioni
- Dept. of Life and Environmental Sciences, Univ. of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - Marco Campus
- Agricultural Research Agency of Sardinia (Agris Sardegna), Km 18.600 S.S. 291, Loc. Bonassai, Sassari, Italy
| | - Emanuele Cauli
- Agricultural Research Agency of Sardinia (Agris Sardegna), Km 18.600 S.S. 291, Loc. Bonassai, Sassari, Italy
| | - Roberto Zurru
- Agricultural Research Agency of Sardinia (Agris Sardegna), Km 18.600 S.S. 291, Loc. Bonassai, Sassari, Italy
| | - Monica Deiana
- Dept. of Biomedical Sciences, Unit of Experimental Pathology, Univ. of Cagliari, Cittadella Universitaria, SS 554, Monserrato (CA), 09042, Italy
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Alirezaei M, Rezaei M, Hajighahramani S, Sookhtehzari A, Kiani K. Oleuropein attenuates cognitive dysfunction and oxidative stress induced by some anesthetic drugs in the hippocampal area of rats. J Physiol Sci 2017; 67:131-139. [PMID: 27023715 PMCID: PMC10717304 DOI: 10.1007/s12576-016-0446-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Accepted: 03/03/2016] [Indexed: 11/29/2022]
Abstract
The present study was designed to evaluate the antioxidant effects of oleuropein against oxidative stress in the hippocampal area of rats. We used seven experimental groups as follows: Control, Propofol, Propofol-Ketamine (Pro.-Ket.), Xylazine-Ketamine (Xyl.-Ket.), and three oleuropein-pretreated groups (Ole.-Pro., Ole.-Pro.-Ket. and Ole.-Xyl.-Ket.). The oleuropein-pretreated groups received oleuropein (15 mg/kg body weight as orally) for 10 consecutive days. Propofol 100 mg/kg, xylazine 3 mg/kg, and ketamine 75 mg/kg once as ip was used on the 11th day of treatment. Spatial memory impairment and antioxidant status of hippocampus were measured via Morris water maze, lipid peroxidation marker, and antioxidant enzyme activities. Spatial memory impairment and lipid peroxidation significantly increased in Xyl.-Ket.-treated rats in comparison to the control, propofol, Ole.-Pro. and Ole.-Pro.-Ket. groups. Oleuropein pretreatment significantly reversed spatial memory impairment and lipid peroxidation in the Ole.-Xyl.-Ket. group as compared to the Xyl.-Ket.-treated rats. There was no significant difference between the control and the propofol group in lipid peroxidation and spatial memory status. Superoxide dismutase and catalase activities both significantly decreased in Xyl.-Ket.-treated rats when compared to the control, propofol, Ole.-Pro., Ole.-Pro.-Ket., and Ole.-Xyl.-Ket. groups. In contrast, glutathione peroxidase activity in Xyl.-Ket.-treated rats significantly increased as compared to the control, propofol, Pro.-Ket., Ole.-Pro., and Ole.-Pro.-Ket. groups. We concluded that xylazine in combination with ketamine is an oxidative anesthetic drug and oleuropein pretreatment attenuates cognitive dysfunction and oxidative stress induced by anesthesia in the hippocampal area of rats. We also confirmed the antioxidant properties of propofol as a promising antioxidant anesthetic agent.
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Affiliation(s)
- Masoud Alirezaei
- Division of Biochemistry, School of Veterinary Medicine, Lorestan University, PO Box 465, Khorramabad, Iran.
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Maryam Rezaei
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Shahin Hajighahramani
- Department of Animal Sciences, Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Ali Sookhtehzari
- Department of Clinical Sciences, School of Veterinary Medicine, Lorestan University, PO Box 465, Khorramabad, Iran
| | - Katayoun Kiani
- Department of Physiology and Pharmacology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
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Pourkhodadad S, Alirezaei M, Moghaddasi M, Ahmadvand H, Karami M, Delfan B, Khanipour Z. Neuroprotective effects of oleuropein against cognitive dysfunction induced by colchicine in hippocampal CA1 area in rats. J Physiol Sci 2016; 66:397-405. [PMID: 26892487 PMCID: PMC10717865 DOI: 10.1007/s12576-016-0437-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 02/04/2016] [Indexed: 01/08/2023]
Abstract
Alzheimer's disease is a progressive neurodegenerative disorder with decline in memory. The role of oxidative stress is well known in the pathogenesis of the disease. The purpose of this study was to evaluate pretreatment effects of oleuropein on oxidative status and cognitive dysfunction induced by colchicine in the hippocampal CA1 area. Male Wistar rats were pretreated orally once daily for 10 days with oleuropein at doses of 10, 15 and 20 mg/kg. Thereafter, colchicine (15 μg/rat) was administered into the CA1 area of the hippocampus to induce cognitive dysfunction. The Morris water maze was used to assess learning and memory. Biochemical parameters such as glutathione peroxidase and catalase activities, nitric oxide and malondialdehyde concentrations were measured to evaluate the antioxidant status in the rat hippocampus. Our results indicated that colchicine significantly impaired spatial memory and induced oxidative stress; in contrast, oleuropein pretreatment significantly improved learning and memory retention, and attenuated the oxidative damage. The results clearly indicate that oleuropein has neuroprotective effects against colchicine-induced cognitive dysfunction and oxidative damage in rats.
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Affiliation(s)
- Soheila Pourkhodadad
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Masoud Alirezaei
- Division of Biochemistry, School of Veterinary Medicine, Lorestan University, P.O. Box 465, Khorramabad, Iran
| | - Mehrnoush Moghaddasi
- Department of Physiology and Pharmacology, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hassan Ahmadvand
- Department of Biochemistry, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Manizheh Karami
- Department of Biology, Faculty of Basic Sciences, Shahed University, Tehran, Iran
| | - Bahram Delfan
- Department of Physiology and Pharmacology, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Zahra Khanipour
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
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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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Antioxidant and Hepatoprotective Effects of Procyanidins from Wild Grape (Vitis amurensis) Seeds in Ethanol-Induced Cells and Rats. Int J Mol Sci 2016; 17:ijms17050758. [PMID: 27213339 PMCID: PMC4881579 DOI: 10.3390/ijms17050758] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/06/2016] [Accepted: 05/12/2016] [Indexed: 12/30/2022] Open
Abstract
In the present study, we characterized the antioxidant and hepatoprotective mechanisms underlying of wild grape seed procyanidins (WGP) against oxidative stress damage in ethanol-treated HepG2 cell and Sprague-Dawley (SD)-rat models. In HepG2 cells, WGP not only diminished the ethanol (EtOH, 100 mM)-induced reactive oxygen species (ROS) formation and cytochrome P450 2E1 (CYP2E1) expression, but also renovated both the activity and expression of antioxidant enzymes including catalase, superoxide dismutase, and glutathione peroxidase. Additionally, to investigate the hepatoprotective effect of WGP, rats were orally administered 10 or 50 mg/kg WGP once daily for seven days prior to the single oral administration of EtOH (6 g/kg). The results show that WGP administration decreased the EtOH-induced augment of the levels of serum aspartate transaminase and alanine transaminase as well as serum alcohol and acetaldehyde. WGP treatment upregulated the activities and protein levels of hepatic alcohol dehydrogenase, aldehyde dehydrogenase, and antioxidant enzymes but downregulated the protein expression level of liver CYP2E1 in EtOH-treated rats. Moreover, the decreased phosphorylation levels of mitogen activated protein kinases (MAPKs) by ethanol were induced in both HepG2 cell and rat models. Overall, pretreatment of WGP displayed the protective activity against EtOH-mediated toxicity through the regulation of antioxidant enzymes and alcohol metabolism systems via MAPKs pathways.
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Hassen I, Casabianca H, Hosni K. Biological activities of the natural antioxidant oleuropein: Exceeding the expectation – A mini-review. J Funct Foods 2015. [DOI: 10.1016/j.jff.2014.09.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Novel Antioxidant Properties of Ghrelin and Oleuropein Versus Lipopolysaccharide-Mediated Renal Failure in Rats. Int J Pept Res Ther 2015. [DOI: 10.1007/s10989-015-9470-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Protective effects of friedelin isolated from Azima tetracantha Lam. against ethanol-induced gastric ulcer in rats and possible underlying mechanisms. Eur J Pharmacol 2015; 750:167-75. [DOI: 10.1016/j.ejphar.2015.01.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/23/2014] [Accepted: 01/05/2015] [Indexed: 11/21/2022]
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Sarbishegi M, Mehraein F, Soleimani M. Antioxidant role of oleuropein on midbrain and dopaminergic neurons of substantia nigra in aged rats. IRANIAN BIOMEDICAL JOURNAL 2014; 18:16-22. [PMID: 24375158 DOI: 10.6091/ibj.1274.2013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Oleuropein is a phenolic compound which is present in the olive leaf extract. The purpose of the present study was to investigate the neuroprotective effect of oleuropein as an antioxidant agent on the substantia nigra in aged rats. METHODS Twenty 18-month-old Wistar rats (450-550 g) were randomly divided into control and experimental groups. The experimental group received a daily single dose of 50 mg/kg of oleuropein by oral gavage for 6 months. The control group received only distilled water. All rats were sacrificed two hours after the last gavage and the brains were removed and midbrains were cut. One part of the midbrains were homogenized and centrifuged. The tissue supernatant was assayed for lipid peroxidation (LPO) and antioxidant enzyme activities. The other part of midbrains fixed and embedded in paraffin, then processed for Nissl and immunohistochemistry (IHC) staining. Data was analyzed using SPSS by t-test. Differences were considered significant for P<0.05. RESULTS The level of LPO in midbrain of the rats was decreased significantly in the experimental group, but superoxide dismutase, catalase and glutathione peroxidase activities were increased in experimental group compared to control group (P<0.05). Morphometric analyses showed significantly that the experimental group had more neurons in substantia nigra pars compacta (SNc) either in Nissl or IHC staining when compared to control (P<0.05). CONCLUSION The results of the present study indicate that treatment of the old rats with oleuropein reduces the oxidative damage in SNc by increasing the antioxidant enzyme activities.
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Affiliation(s)
- Maryam Sarbishegi
- Dept. of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Mehraein
- Dept. of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mansooreh Soleimani
- Dept. of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Bulotta S, Celano M, Lepore SM, Montalcini T, Pujia A, Russo D. Beneficial effects of the olive oil phenolic components oleuropein and hydroxytyrosol: focus on protection against cardiovascular and metabolic diseases. J Transl Med 2014; 12:219. [PMID: 25086598 PMCID: PMC4237885 DOI: 10.1186/s12967-014-0219-9] [Citation(s) in RCA: 234] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 07/22/2014] [Indexed: 11/16/2022] Open
Abstract
The overall health beneficial action of olive oil phenolic components is well established. Recent studies have elucidated the biological effects of two isolated compounds, namely oleuropein and hydroxytyrosol, with particular attention on their antioxidant activity. Thus, a protective action has been demonstrated in preclinical studies against several diseases, especially cardiovascular and metabolic disorders. The present review will describe the biological effects of oleuropein and hydroxytyrosol, with particular attention on the molecular mechanism underlying the protective action on cardiovascular and metabolic alterations, as demonstrated by in vitro and in vivo experimental studies performed with the isolated compounds.
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Affiliation(s)
| | | | | | | | - Arturo Pujia
- Department of Health Sciences, University "Magna Graecia" of Catanzaro, Campus "S, Venuta", Catanzaro, 88100, Italy.
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Nekooeian AA, Khalili A, Khosravi MB. Effects of oleuropein in rats with simultaneous type 2 diabetes and renal hypertension: a study of antihypertensive mechanisms. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 16:953-962. [PMID: 24954237 DOI: 10.1080/10286020.2014.924510] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 05/11/2014] [Indexed: 06/03/2023]
Abstract
The mechanism of oleuropein's antihypertensive effects was examined in rat model of simultaneous type 2 diabetes and renal hypertension (diabetic hypertensive). Five groups of male Sprague-Dawley rats including a control, a diabetic-hypertensive group receiving vehicle, and three diabetic-hypertensive groups receiving oleuropein at 20, 40, or 60 mg/kg/day were used. The duration of diabetes was 10 weeks; during the last 4 weeks of which, animals were hypertensive and received vehicle or oleuropein. Systolic blood pressure, glucose and malondialdehyde, heart rate, and maximal response to phenylephrine (PE) in the absence of nitro-L-arginine methyl ester (L-NAME) of oleuropein-treated groups were significantly lower than those of vehicle-treated group. Erythrocyte superoxide dismutase, maximal response to PE in the presence of L-NAME, and maximal response to acetylcholine (Ach) of oleuropein-treated groups were significantly higher than those of vehicle-treated group. The findings indicate that antihypertensive effects of oleuropein might be partly mediated by improving the release of nitric oxide, and antioxidant and sympathoplegic activities.
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Affiliation(s)
- Ali Akbar Nekooeian
- a Cardiovascular Pharmacology Research Lab, Department of Pharmacology , Medical school, Shiraz University of Medical Sciences , Shiraz 7134845794 , Iran
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Oral administration of betaine ameliorates ethanol-induced gastric injury in rats through its antioxidant effects. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s13596-014-0158-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Çoban J, Öztezcan S, Doğru-Abbasoğlu S, Bingül I, Yeşil-Mizrak K, Uysal M. Olive leaf extract decreases age-induced oxidative stress in major organs of aged rats. Geriatr Gerontol Int 2014; 14:996-1002. [DOI: 10.1111/ggi.12192] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Jale Çoban
- Department of Biochemistry; Yeditepe University Medical Faculty; Istanbul Turkey
| | - Serdar Öztezcan
- Department of Biochemistry; Yeditepe University Medical Faculty; Istanbul Turkey
| | - Semra Doğru-Abbasoğlu
- Department of Biochemistry; Istanbul Medical Faculty; Istanbul University; Istanbul Turkey
| | - Ilknur Bingül
- Department of Biochemistry; Istanbul Medical Faculty; Istanbul University; Istanbul Turkey
| | - Kübra Yeşil-Mizrak
- Department of Biochemistry; Yeditepe University Medical Faculty; Istanbul Turkey
| | - Müjdat Uysal
- Department of Biochemistry; Istanbul Medical Faculty; Istanbul University; Istanbul Turkey
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Lopez S, Bermudez B, Montserrat-de la Paz S, Jaramillo S, Varela LM, Ortega-Gomez A, Abia R, Muriana FJG. Membrane composition and dynamics: a target of bioactive virgin olive oil constituents. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:1638-56. [PMID: 24440426 DOI: 10.1016/j.bbamem.2014.01.007] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/03/2014] [Accepted: 01/07/2014] [Indexed: 12/26/2022]
Abstract
The endogenous synthesis of lipids, which requires suitable dietary raw materials, is critical for the formation of membrane bilayers. In eukaryotic cells, phospholipids are the predominant membrane lipids and consist of hydrophobic acyl chains attached to a hydrophilic head group. The relative balance between saturated, monounsaturated, and polyunsaturated acyl chains is required for the organization and normal function of membranes. Virgin olive oil is the richest natural dietary source of the monounsaturated lipid oleic acid and is one of the key components of the healthy Mediterranean diet. Virgin olive oil also contains a unique constellation of many other lipophilic and amphipathic constituents whose health benefits are still being discovered. The focus of this review is the latest evidence regarding the impact of oleic acid and the minor constituents of virgin olive oil on the arrangement and behavior of lipid bilayers. We highlight the relevance of these interactions to the potential use of virgin olive oil in preserving the functional properties of membranes to maintain health and in modulating membrane functions that can be altered in several pathologies. This article is part of a Special Issue entitled: Membrane Structure and Function: Relevance in the Cell's Physiology, Pathology and Therapy.
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Affiliation(s)
- Sergio Lopez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Beatriz Bermudez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | | | - Sara Jaramillo
- Laboratory of Phytochemicals and Food Quality, Instituto de la Grasa, CSIC, 41014 Seville, Spain
| | - Lourdes M Varela
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Almudena Ortega-Gomez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Rocio Abia
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Francisco J G Muriana
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain.
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Hypoglycemic, hypolipidemic and antiatherogenic effects of oleuropein in alloxan-induced Type 1 diabetic rats. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2014. [DOI: 10.1016/s2222-1808(14)60481-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Cárdeno A, Sánchez-Hidalgo M, Aparicio-Soto M, Sánchez-Fidalgo S, Alarcón-de-la-Lastra C. Extra virgin olive oil polyphenolic extracts downregulate inflammatory responses in LPS-activated murine peritoneal macrophages suppressing NFκB and MAPK signalling pathways. Food Funct 2014; 5:1270-7. [DOI: 10.1039/c4fo00014e] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extra virgin olive oil (EVOO) is obtained from the fruit of the olive treeOlea europaeaL. Phenolic compounds present in EVOO have recognized anti-oxidant and anti-inflammatory properties.
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Affiliation(s)
- A. Cárdeno
- Department of Pharmacology
- Faculty of Pharmacy
- University of Seville
- 41012 Seville, Spain
| | - M. Sánchez-Hidalgo
- Department of Pharmacology
- Faculty of Pharmacy
- University of Seville
- 41012 Seville, Spain
| | - M. Aparicio-Soto
- Department of Pharmacology
- Faculty of Pharmacy
- University of Seville
- 41012 Seville, Spain
| | - S. Sánchez-Fidalgo
- Department of Pharmacology
- Faculty of Pharmacy
- University of Seville
- 41012 Seville, Spain
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Alirezaei M, Dezfoulian O, Sookhtehzari A, Asadian P, Khoshdel Z. Antioxidant effects of oleuropein versus oxidative stress induced by ethanol in the rat intestine. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s00580-013-1791-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nartey ET, Ofosuhene M, Agbale CM. Anti-ulcerogenic activity of the root bark extract of the African laburnum "Cassia sieberiana" and its effect on the anti-oxidant defence system in rats. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 12:247. [PMID: 23228052 PMCID: PMC3577646 DOI: 10.1186/1472-6882-12-247] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 12/07/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND Despite the widespread use of roots of Cassia sieberiana in managing several health conditions including gastric ulcer disease, there is little scientific data to support the rational phytotherapeutics as an anti-ulcer agent. This paper reports an evaluation of the in vivo anti-oxidant properties of an aqueous root bark extract of C. sieberiana in experimental gastric ulcer rats in a bid to elucidate its mechanism of action. METHODS Fisher 344 (F(344)) rats received pretreatment of C. sieberiana root bark extract (500, 750, and 1000 mg/kg body wt.) for 7 days after which there was induction of gastric injury with absolute ethanol. The mean ulcer index (MUI) was calculated and serum total anti-oxidant level determined. Gastric mucosal tissues were prepared and the activity level of the enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and myeloperoxidase (MPO) were measured together with the level of lipid hydroperoxides (LPO). Statistical difference between treatment groups was analysed using one-way analysis of variance (ANOVA) followed by Dunnett's post hoc t test. Statistical significance was calculated at P< 0.05. RESULTS The administration of ethanol triggered severe acute gastric ulcer and pretreatment with C. sieberiana root bark extract significantly and dose dependently protected against this effect. The root bark extract also dose dependently and significantly inhibited the ethanol induced decrease in activity levels of the enzymes SOD, CAT and GPx. The extract also inhibited the ethanol-induced decrease in level of serum total anti-oxidant capacity. The increase in ethanol-induced LPO level and MPO activity were also significantly and dose-dependently inhibited by the root bark extract. CONCLUSIONS The gastro-cytoprotective effect, inhibition of decrease in activity of gastric anti-oxidant enzymes and MPO as well as the inhibition of gastric LPO level suggests that one of the anti-ulcer mechanisms of C. sieberiana is the anti-oxidant property.
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