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Onger ME, Altun G, Yildiran A. Pigment epithelium-derived factor enhances peripheral nerve regeneration through modulating oxidative stress and stem cells: An experimental study. Anat Rec (Hoboken) 2023; 306:2621-2635. [PMID: 36787348 DOI: 10.1002/ar.25177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 01/04/2023] [Accepted: 01/18/2023] [Indexed: 02/15/2023]
Abstract
Peripheral nerve injury is common and negatively affects an individual's quality of life. Drugs used for peripheral nerve regeneration should aim to eliminate symptoms such as neuropathic pain and have therapeutic effects. In recent studies, pigment epithelium-derived factor (PEDF) has been considered an essential therapeutic agent because of its potential neuroprotective properties. In this study, we aimed to investigate the efficacy of locally applied PEDF for peripheral nerve regeneration. Twenty-four Wistar albino male rats were used. The study groups included Injury (n = 12) and Injury+PEDF (n = 12). An injury model was created by applying 50 N pressure to the right sciatic nerves in groups, and 10 μg/kg local PEDF was injected into the Injury+PEDF group. After 28 days of recovery, functional tests and stereological, immunohistochemical, and biochemical analyses were performed. A significant difference was found between the Injury and Injury+PEDF groups in amplitude, whereas no difference was found in latency. The number of myelinated axons and the myelinated axon area increased significantly in the Injury+PEDF group, while no statistically significant difference was found in myelin sheath thickness. Superoxide dismutase, catalase, and glutathione peroxidase activities were increased by PEDF, whereas they were suppressed in mesenchymal stem cells. PEDF exerts functional, quantitative, and antioxidative effects on sciatic nerve injury during neuroregeneration. In addition, when oxidative stress parameters were examined, it was seen that PEDF reduced oxidative stress following sciatic nerve injury.
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Affiliation(s)
- Mehmet Emin Onger
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
- Department of Neuroscience, Health Science Institute, Ondokuz Mayıs University, Samsun, Turkey
| | - Gamze Altun
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Alisan Yildiran
- Department of Pediatrics, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
- Department of Immunology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
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Çelik H, Kucukler S, Çomaklı S, Caglayan C, Özdemir S, Yardım A, Karaman M, Kandemir FM. Neuroprotective effect of chrysin on isoniazid-induced neurotoxicity via suppression of oxidative stress, inflammation and apoptosis in rats. Neurotoxicology 2020; 81:197-208. [PMID: 33121995 DOI: 10.1016/j.neuro.2020.10.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 10/22/2020] [Accepted: 10/22/2020] [Indexed: 02/08/2023]
Abstract
Isoniazid (INH) is among the most important anti-tuberculosis agents widely prescribed. However, its clinical use is restricted due to its severe side effects associated with neurotoxicity. The aim of the present study was to investigate the neuroprotective effects of chrysin (CR), a natural antioxidant, against INH-induced neurotoxicity in rats. The rats were treated orally with INH (400 mg/kg body weight) alone or with CR (25 and 50 mg/kg body weight) for 7 consecutive days. INH administration significantly increased brain lipid peroxidation and resulted in a significant decrease in antioxidant biomarkers including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione (GSH). INH treatment also increased levels of nuclear factor kappa B (NF-κB), tumor necrosis factor-α (TNF-α), glial fibrillary acidic protein (GFAP) and activities of p38α mitogen-activated protein kinase (p38α MAPK) while decreasing levels of neural cell adhesion molecule (NCAM). Double immunofluorescence expressions of c-Jun N-terminal kinase (JNK) and Bcl-2 associated X protein (Bax) in brain tissues were increased after INH administration. Furthermore, INH increased mRNA expression levels of nuclear factor erythroid 2-related factor 2 (Nrf-2), heme oxygenase-1 (HO-1), NAD(P)H: quinone oxidoreductase 1 (NQO1), glutamate-cysteine ligase modifier subunit (Gclm), glutamate cysteine ligase catalytic subunit (Gclc), NF-κB, TNF-α, interleukin-1β (IL-1β), interleukin-6 (IL-6) and GFAP in rat brain tissues. Co-treatment with CR increased anti-oxidant capacity as well as regulated inflammation and apoptosis in brain. Additionally, molecular docking results showed that CR had the potential to interact with the active sites of TNF-α and NFκ-B. In conclusion, CR improved INH-induced brain oxidative damage, inflammation and apoptosis, possibly through their antioxidant properties.
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Affiliation(s)
- Hamit Çelik
- Department of Neurology, Private Buhara Hospital, Erzurum, Turkey
| | - Sefa Kucukler
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Selim Çomaklı
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Cuneyt Caglayan
- Department of Biochemistry, Faculty of Veterinary Medicine, Bingol University, 12000, Bingol, Turkey.
| | - Selçuk Özdemir
- Department of Genetics, Faculty of Veterinary Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Ahmet Yardım
- Department of Neurosurgery, Private Buhara Hospital, Erzurum, Turkey
| | - Muhammet Karaman
- Department of Molecular Biology and Genetics, Faculty of Arts and Science, Kilis 7 Aralik University, 79000, Kilis, Turkey
| | - Fatih Mehmet Kandemir
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, 25240, Erzurum, Turkey.
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Gülçin İ, Scozzafava A, Supuran CT, Akıncıoğlu H, Koksal Z, Turkan F, Alwasel S. The effect of caffeic acid phenethyl ester (CAPE) on metabolic enzymes including acetylcholinesterase, butyrylcholinesterase, glutathione S-transferase, lactoperoxidase, and carbonic anhydrase isoenzymes I, II, IX, and XII. J Enzyme Inhib Med Chem 2015; 31:1095-101. [DOI: 10.3109/14756366.2015.1094470] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- İlhami Gülçin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey,
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia,
| | - Andrea Scozzafava
- Dipartimento Di Chimica Ugo Schiff, Università Degli Studi Di Firenze, Firenze, Italy,
| | - Claudiu T. Supuran
- Dipartimento Di Chimica Ugo Schiff, Università Degli Studi Di Firenze, Firenze, Italy,
- Department of Neurofarba, Section of Pharmaceutical and Nutriceutical Sciences, Università Degli Studi Di Firenze, Florence, Italy,
| | - Hulya Akıncıoğlu
- Central Researching Laboratory, Agri Ibrahim Cecen University, Agri, Turkey, and
| | - Zeynep Koksal
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey,
| | - Fikret Turkan
- Health Services Vocational School, Igdır University, Igdır, Turkey
| | - Saleh Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia,
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Choi JH, Roh KH, Oh H, Park SJ, Ha SM, Kang MS, Lee JH, Jung SY, Song H, Yang JW, Park S. Caffeic acid phenethyl ester lessens disease symptoms in an experimental autoimmune uveoretinitis mouse model. Exp Eye Res 2015; 134:53-62. [PMID: 25795054 DOI: 10.1016/j.exer.2015.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 02/12/2015] [Accepted: 03/16/2015] [Indexed: 12/22/2022]
Abstract
Experimental autoimmune uveoretinitis (EAU) is an autoimmune disease that models human uveitis. Caffeic acid phenethyl ester (CAPE), a phenolic compound isolated from propolis, possesses anti-inflammatory and immunomodulatory properties. CAPE demonstrates therapeutic potential in several animal disease models through its ability to inhibit NF-κB activity. To evaluate these therapeutic effects in EAU, we administered CAPE in a model of EAU that develops after immunization with interphotoreceptor retinal-binding protein (IRBP) in B10.RIII and C57BL/6 mice. Importantly, we found that CAPE lessened the severity of EAU symptoms in both mouse strains. Notably, treated mice exhibited a decrease in the ocular infiltration of immune cell populations into the retina; reduced TNF-α, IL-6, and IFN-γ serum levels: and inhibited TNF-α mRNA expression in retinal tissues. Although CAPE failed to inhibit IRBP-specific T cell proliferation, it was sufficient to suppress cytokine, chemokine, and IRBP-specific antibody production. In addition, retinal tissues isolated from CAPE-treated EAU mice revealed a decrease in NF-κB p65 and phospho-IκBα. The data identify CAPE as a potential therapeutic agent for autoimmune uveitis that acts by inhibiting cellular infiltration into the retina, reducing the levels of pro-inflammatory cytokines, chemokine, and IRBP-specific antibody and blocking NF-κB pathway activation.
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Affiliation(s)
- Jae-Hyeog Choi
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea; Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea
| | - Kug-Hwan Roh
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea; Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea
| | - Hana Oh
- Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea; Department of Ophthalmology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
| | - Sol-Ji Park
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea; Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea
| | - Sung-Min Ha
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea; Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea
| | - Mi Seon Kang
- Department of Pathology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
| | - Ji-Hyun Lee
- Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea
| | - So Young Jung
- Department of Dermatology, Haeundae Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
| | - Hyunkeun Song
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea; Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea
| | - Jae Wook Yang
- Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea; Department of Ophthalmology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea.
| | - SaeGwang Park
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea; Ocular Neovascular Disease Research Center, Busan Paik Hospital, Busan, Republic of Korea.
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Chi Z, Liu R, You H, Ma S, Cui H, Zhang Q. Probing the in vitro cytotoxicity of the veterinary drug oxytetracycline. PLoS One 2014; 9:e102334. [PMID: 25019386 PMCID: PMC4096727 DOI: 10.1371/journal.pone.0102334] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 06/18/2014] [Indexed: 11/19/2022] Open
Abstract
The study investigated the effect of oxytetracycline (OTC) on the anti-oxidative defense system, the structure (hemolysis rate and morphology) and function (ATP enzyme activity) of human red blood cells (hRBCs) to investigate the possible toxic mechanism of OTC to hRBCs. The experimental results indicate that OTC can cause a decline in the function of the antioxidant defense system of hRBCs, resulting in oxidative stress. OTC can bring about morphological changes to hRBCs, and further leads to hemolysis, when the concentration of OTC is over 8×10(-5) M (about 164 µg/ml). At a low OTC concentration, below 4×10(-5) M (82 µg/ml), OTC can enhance the activity of ATP enzyme of hRBCs, known as hormesis. However, at a high concentration, above 4×10(-5) M (about 82 µg/ml), the ATP enzymatic activity was inhibited, affecting the function of hRBCs. The estalished mechanism of toxicity of OTC to hRBCs can facilitate a deeper understanding of the toxicity of OTC in vivo.
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Affiliation(s)
- Zhenxing Chi
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, PR China
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, Jinan, PR China
| | - Hong You
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, PR China
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Shanshan Ma
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Hao Cui
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
| | - Qiang Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, PR China
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Caffeic acid phenyl ester prevents cadmium intoxication induced disturbances in erythrocyte indices and blood coagulability, hepatorenal dysfunction and oxidative stress in rats. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.achaem.2014.04.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kınıs V, Ozbay M, Akdag M, Alabalık U, Gul A, Yılmaz B, Ozkan H, Topcu I. Effects of caffeic acid phenethyl ester on wound healing of nasal mucosa in the rat: an experimental study. Am J Otolaryngol 2014; 35:482-6. [PMID: 24767474 DOI: 10.1016/j.amjoto.2014.02.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/04/2014] [Accepted: 02/10/2014] [Indexed: 11/28/2022]
Abstract
PURPOSE Wound healing of the nasal mucosa is a highly complex process that restores the anatomical and functional integrity of tissue that has been exposed to trauma. In this experimental study, our aim was to use histopathological examination to investigate the effects of caffeic acid phenethyl ester on the wound healing of rat nasal mucosa after mechanical trauma. MATERIALS AND METHODS The rats were randomly divided into 3 experimental groups: a non-treated group (n=7), a control saline group (n=7) and a caffeic acid phenethyl ester group (n=7). The non-treated group received no treatment for 15 days. The second group was administered saline (2.5 mL/kg, intraperitoneal) once a day for 15 days. The third group received caffeic acid phenethyl ester intraperitoneally at a dose of 10 μmol/kg once a day for 15 days. At the beginning of the study, unilateral mechanical nasal trauma was induced on the right nasal mucosa of all rats in the three groups using a brushing technique. Samples were stained using hematoxylin and eosin solution and were examined by a pathologist using a light microscope. RESULTS The severity of inflammation was milder in the caffeic acid phenethyl ester group compared with that in the non-treated and saline groups (P<0.05). The subepithelial thickness index was lower in the experimental group (P<0.05). Goblet cell and ciliated cell loss was substantially reduced in the experimental group compared with the non-treated and saline groups (P<0.05). CONCLUSIONS Caffeic acid phenethyl ester decreases inflammation and the loss of goblet cells and ciliated cells. Therefore, caffeic acid phenethyl ester has potential beneficial effects on the wound healing of nasal mucosa in the rat.
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Affiliation(s)
- Vefa Kınıs
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey.
| | - Musa Ozbay
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey
| | - Mehmet Akdag
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey
| | - Ulas Alabalık
- Department of Pathology, Dicle University Medical College, Diyarbakir, Turkey
| | - Aylin Gul
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey
| | - Beyhan Yılmaz
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey
| | - Hakan Ozkan
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey
| | - Ismail Topcu
- Department of ENT and Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey
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Preventative effects of caffeic Acid phenyl ester on cadmium intoxication induced hematological and blood coagulation disturbances and hepatorenal damage in rats. ISRN HEMATOLOGY 2014; 2014:764754. [PMID: 25006475 PMCID: PMC4003892 DOI: 10.1155/2014/764754] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 03/17/2014] [Indexed: 12/14/2022]
Abstract
The preventative effect of caffeic acid phenyl ester (CAPE) against hematological, blood coagulation, and hepatorenal disturbances in cadmium (Cd) intoxication was investigated in rats. Male Wistar rats were randomly assigned into control group, Cd-group, and Cd + CAPE group. Cd intoxication was induced by intraperitoneal injection (i.p.) of CdCl2 (1 mg/kg/day) for 21 days, and CAPE was daily given (10 micromol/kg; i.p.) for also 21 days. The results showed that Cd intoxication impaired hepatorenal function and significantly prolonged prothrombin time and activated partial thromboplastin time and decreased fibrinogen level, red blood cells and platelets counts, hemoglobin concentration, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. Interestingly, all these hematological, blood coagulation, and hepatorenal deteriorations of Cd toxicity were significantly prevented by CAPE. Additionally, CAPE significantly reversed the significant decreases in levels of total reduced glutathione and superoxide dismutase and increases in levels of thiobarbituric acid reactive substances that were observed in the sera and liver and kidney homogenates of Cd group. It is concluded that CAPE is a promising compound that can counteract the hematological and blood coagulation disturbances, oxidative stress, and hepatorenal damages in Cd intoxication. However, further studies are crucially needed to improve this treatment in patients.
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Effect of caffeic acid phenethyl ester on myringosclerosis development in the tympanic membrane of rat. Eur Arch Otorhinolaryngol 2013; 272:29-34. [DOI: 10.1007/s00405-013-2832-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 11/18/2013] [Indexed: 10/26/2022]
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Sahin A, Kaya S, Türkcü G, Cingü AK, Yüksel H, Türkcü FM, Yüksel H, Cınar Y, Arı S, Sahin M, Caça I, Gökalp O. The effects of caffeic acid phenethyl ester in acute methanol toxicity on rat retina and optic nerve. Cutan Ocul Toxicol 2013; 32:263-7. [PMID: 23461623 DOI: 10.3109/15569527.2013.771642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE We aimed to test caffeic acid phenethyl ester (CAPE) as an antidote for acute methanol (MeOH) toxicity and to compare it with ethanol. METHODS This study included five groups, each containing eight rats. The groups were control, methotrexate (MTX), MeOH, ethanol and CAPE. All rats except control group were treated with intraperitoneal (i.p.) MTX (0.3 mg/kg/d) for 7 d. At the 8th day of the experiment, i.p. injection of MeOH (3 g/kg) was administered in MeOH, ethanol and CAPE groups. Four hours after MeOH treatment, 0.5 g/kg ethanol was injected i.p. in ethanol group; 10 μmol/kg CAPE i.p. in CAPE group; serum physiologic i.p. in other groups. After 8 h, rats were anaesthetized and sacrificed. Total anti-oxidant status (TAS), total oxidant status (TOS) were measured on the dissected and excised retina and optic nerve samples. Fellow eyes were used for histopathologic evaluation and the cell count of retinal ganglion cell (RGC) layer. In addition, interactions of alcohol dehydrogenase with CAPE, ethanol, MeOH and pyrazole derivatives were investigated. RESULTS Either CAPE or ethanol co-treatment decreased the TOS levels and increased the TAS levels compared to the MeOH group. MeOH treatment decreased the mean cell count in RGC layer. CAPE co-treatment significantly prevented cell loss (p = 0.040). Besides, in silico calculations showed that binding affinity of CAPE to alcohol dehydrogenase was higher than those of MeOH, ethanol, and pyrazole derivatives were. CONCLUSION This study demonstrated that CAPE treatment decreased the oxidative stress in acute MeOH intoxication in the retina and optic nerve; beside that, protected RGC layer histology. In silico, CAPE had higher affinity score than MeOH, ethanol, pyrazole and pyrazole derivatives in the case of interaction with alcohol dehydrogenase.
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Affiliation(s)
- Alparslan Sahin
- Department of Ophthalmology, Dicle University School of Medicine, Diyarbakır, Turkey.
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Şahin A, Kürşat Cingü A, Kaya S, Türkcü G, Arı Ş, Evliyaoğlu O, Çınar Y, Türkcü FM, Yüksel H, Murat M, Çaça İ, Gökalp O. The protective effects of caffeic acid phenethyl ester in isoniazid and ethambutol-induced ocular toxicity of rats. Cutan Ocul Toxicol 2013; 32:228-33. [PMID: 23351037 DOI: 10.3109/15569527.2012.759958] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE This study intended to examine the effect of caffeic acid phenethyl ester (CAPE) on isoniazid (INH) and/or ethambutol (ETM)-induced retina and optic nerve toxicity in a rat model. METHODS This study included eight groups, each containing 10 rats. The groups were Control, INH, ETM, CAPE, INH+CAPE, ETM+CAPE, INH+ETM and INH+ETM+CAPE. Rats were given orally 50 mg/kg/d of INH and 50 mg/kg/d of ETM in tap water for 30 d. 10 μmol/kg of CAPE were intraperitoneally injected for 30 d. The first dose of CAPE was given 24 h before the INH and ETM treatment and continued until sacrifice. Control group was given only tap water for 30 d. Rats were anaesthetized and sacrificed on the 30th day of experiment. Superoxide dismutase (SOD) activities, malondialdehyde (MDA), total anti-oxidant status (TAS), total oxidant status (TOS) were measured on the dissected and excised retina and optic nerve samples. Fellow eyes were used for histopathologic evaluation and the retinal ganglion cell (RGC) count. In addition, CAPE, INH and ETM interaction with SOD isoforms were calculated in silico. RESULTS The SOD activity and TAS levels were found significantly higher in CAPE-treated groups compared to INH and/or ETM-treated groups (p < 0.0001). But the MDA, and TOS levels were significantly lower in CAPE-treated groups (p < 0.0001). The mean RGC count is significantly decreased in INH, ETM and INH+ETM groups compared with INH+CAPE, ETM+CAPE and INH+ETM+CAPE groups, respectively (p values 0.001, 0.042, and 0.001 respectively). Besides, in silico calculations showed that binding affinity of CAPE to SOD isotypes was higher than that of INH and ETM. CONCLUSION This study demonstrates that CAPE treatment may decrease the oxidative stress in the retina and optic nerve of INH- and ETM-treated rats and may prevent RGC loss. As an underlying mechanism, CAPE and SOD interaction seems crucial for alleviation of ocular oxidative stress and RGCs toxicity.
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Affiliation(s)
- Alparslan Şahin
- Department of Ophthalmology, Dicle University, School of Medicine, Diyarbakır, Turkey.
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Bakır S, Özbay M, Gün R, Yorgancılar E, Kınış V, Keleş A, Abakay A, Gökalp O, Topçu İ. The protective role of caffeic acid phenethyl ester against streptomycin ototoxicity. Am J Otolaryngol 2013; 34:16-21. [PMID: 22964505 DOI: 10.1016/j.amjoto.2012.07.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/19/2012] [Accepted: 07/10/2012] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The aim of this experimental study was to investigate the efficacy of caffeic acid phenethyl ester (CAPE) in the prevention of streptomycin-induced ototoxicity. MATERIALS AND METHODS Thirty-two adult Wistar albino rats were divided into 4 groups: control (n = 8), streptomycin (n = 8), CAPE (n = 8), and streptomycin + CAPE (n = 8). Rats were tested with distortion product otoacoustic emissions (DPOAEs) before drug administration. The animals in all groups were killed under general anesthesia on the 45th day following last DPOAE measurements. Hearing results were analyzed statistically to determine differences in amplitudes of DPOAE. Also, the cochleas of each rat were evaluated by histopathological and immunohistochemical examination. RESULTS Significant difference was not observed in cochlear hair cells in the control and CAPE groups. In the streptomycin group, severe degeneration of hair cells and increased apoptotic cells were observed. In the streptomycin + CAPE group, although some deteriorations were observed, hair cells were mostly preserved. The DPgram of the streptomycin and streptomycin + CAPE groups was significantly deteriorated (P < .05). The analysis of the DPgram results revealed statistically significant differences between the groups of streptomycin and streptomycin + CAPE (P < .05). CONCLUSIONS Caffeic acid phenethyl ester treatment attenuated hair cells injury in the inner ear, possibly via its antioxidant effect. Prophylactic administration of CAPE for streptomycin ototoxicity ameliorated hearing deterioration in rats.
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Affiliation(s)
- Salih Bakır
- Department of ENT & Head and Neck Surgery, Dicle University Medical College, Diyarbakir, Turkey.
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Ugur Cevik M, Acar A, Tanriverdi H, Varol S, Arikanoglu A, Yucel Y, Akil E, Yunce M, Ekinci A. Toxic Effects of Isoniazid and Rifampicin on Rat Brain Tissue: The Preventive
Role of Caffeic Acid Phenethyl Ester. INT J PHARMACOL 2012. [DOI: 10.3923/ijp.2012.555.560] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Boudreau LH, Maillet J, LeBlanc LM, Jean-François J, Touaibia M, Flamand N, Surette ME. Caffeic acid phenethyl ester and its amide analogue are potent inhibitors of leukotriene biosynthesis in human polymorphonuclear leukocytes. PLoS One 2012; 7:e31833. [PMID: 22347509 PMCID: PMC3276500 DOI: 10.1371/journal.pone.0031833] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 01/12/2012] [Indexed: 01/20/2023] Open
Abstract
Background 5-lipoxygenase (5-LO) catalyses the transformation of arachidonic acid (AA) into leukotrienes (LTs), which are important lipid mediators of inflammation. LTs have been directly implicated in inflammatory diseases like asthma, atherosclerosis and rheumatoid arthritis; therefore inhibition of LT biosynthesis is a strategy for the treatment of these chronic diseases. Methodology/Principal Findings Analogues of caffeic acid, including the naturally-occurring caffeic acid phenethyl ester (CAPE), were synthesized and evaluated for their capacity to inhibit 5-LO and LTs biosynthesis in human polymorphonuclear leukocytes (PMNL) and whole blood. Anti-free radical and anti-oxidant activities of the compounds were also measured. Caffeic acid did not inhibit 5-LO activity or LT biosynthesis at concentrations up to 10 µM. CAPE inhibited 5-LO activity (IC50 0.13 µM, 95% CI 0.08–0.23 µM) more effectively than the clinically-approved 5-LO inhibitor zileuton (IC50 3.5 µM, 95% CI 2.3–5.4 µM). CAPE was also more effective than zileuton for the inhibition of LT biosynthesis in PMNL but the compounds were equipotent in whole blood. The activity of the amide analogue of CAPE was similar to that of zileuton. Inhibition of LT biosynthesis by CAPE was the result of the inhibition of 5-LO and of AA release. Caffeic acid, CAPE and its amide analog were free radical scavengers and antioxidants with IC50 values in the low µM range; however, the phenethyl moiety of CAPE was required for effective inhibition of 5-LO and LT biosynthesis. Conclusions CAPE is a potent LT biosynthesis inhibitor that blocks 5-LO activity and AA release. The CAPE structure can be used as a framework for the rational design of stable and potent inhibitors of LT biosynthesis.
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Affiliation(s)
- Luc H. Boudreau
- Département de chimie et biochimie, Université de Moncton, Moncton, Canada
- Centre de recherche de l'institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Département de médecine, Faculté de médecine, Université Laval, Québec, Canada
| | - Jacques Maillet
- Département de chimie et biochimie, Université de Moncton, Moncton, Canada
| | - Luc M. LeBlanc
- Département de chimie et biochimie, Université de Moncton, Moncton, Canada
| | | | - Mohamed Touaibia
- Département de chimie et biochimie, Université de Moncton, Moncton, Canada
| | - Nicolas Flamand
- Centre de recherche de l'institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Département de médecine, Faculté de médecine, Université Laval, Québec, Canada
| | - Marc E. Surette
- Département de chimie et biochimie, Université de Moncton, Moncton, Canada
- * E-mail:
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The Protective Effect of CAPE on Hepatic Ischemia/Reperfusion Injury in Rats. J Surg Res 2008; 150:271-7. [DOI: 10.1016/j.jss.2008.01.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Revised: 01/22/2008] [Accepted: 01/24/2008] [Indexed: 12/15/2022]
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16
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Yilmaz HR, Uz E, Gökalp O, Özçelik N, Çiçek E, Özer MK. Protective role of caffeic acid phenethyl ester and erdosteine on activities of purine-catabolizing enzymes and level of nitric oxide in red blood cells of isoniazid-administered rats*. Toxicol Ind Health 2008; 24:519-24. [DOI: 10.1177/0748233708098128] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The aim of this experimental study was to investigate the possible role of nitric oxide (NO) and the activities of adenosine deaminase (ADA) and xanthine oxidase (XO) in the pathogenesis of isoniazid (INH)-induced oxidative damage in red blood cells (RBCs), and also to show the effect of caffeic acid phenethyl ester (CAPE) and erdosteine, antioxidants, in decreasing this toxicity. A total of 25 adult male rats were divided into four experimental groups as follows: control group ( n = 7), INH-treated group ( n = 6), INH + CAPE–treated group ( n = 6), and INH + erdosteine–treated group ( n = 6). INH, INH-CAPE, and INH-erdosteine–treated groups were treated orally with INH 50 mg/kg daily and with the tap water for 15 days. Control group was given only tap water. CAPE was intraperitoneally injected for 15 days at a dose of 10 μmol/kg. Erdosteine was treated orally for 15 days at a dose of 10 mg/kg/day. The injection of INH led to a significant increase in the activities of ADA, XO, and NO levels in RBCs of rats. Co-treatment with CAPE caused a significant decrease in the activities of ADA and XO and the levels of NO in RBCs. In addition, co-treatment with erdosteine caused a significant decrease in the activities of ADA and XO and the levels of NO in RBCs. The results of this study showed that ADA, XO, and NO may play an important role in the pathogenesis of INH-induced oxidative stress in RBCs. CAPE and erdosteine may have protective potential in this process and they may become a promising drug in the prevention of this undesired side effect of INH.
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Affiliation(s)
- HR Yilmaz
- Department of Medical Biology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - E Uz
- Department of Medical Biology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - O Gökalp
- Department of Pharmacology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - N Özçelik
- Department of Medical Biology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - E Çiçek
- Department of Pharmacology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - MK Özer
- Department of Pharmacology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
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Guney M, Oral B, Karahan N, Mungan T. Protective effect of caffeic acid phenethyl ester (CAPE) on fluoride-induced oxidative stress and apoptosis in rat endometrium. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2007; 24:86-91. [PMID: 21783794 DOI: 10.1016/j.etap.2007.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2006] [Revised: 01/16/2007] [Accepted: 01/19/2007] [Indexed: 05/31/2023]
Abstract
High fluoride intake may affect biological systems by increasing free radicals, which may enhance lipid peroxidation levels of the tissues, thus leading to oxidative damage. Caffeic acid phenethyl ester (CAPE), a component of honeybee propolis, protects tissues from reactive oxygen species mediated oxidative stress in ischemia-reperfusion and toxic injuries. Several studies suggest that supplementation with anti-oxidant can influence fluoride induced tissue damage. The aims of this study was to investigate the possible role of malondialdehyde (MDA) levels and activity of superoxide dismutase (SOD) and catalase (CAT), in the pathogenesis of fluoride-induced endometrial damage and to demonstrate the effect of CAPE, the potent antioxidant, in decreasing the toxicity. Twenty-four adult female rats were randomly divided into three experimental groups, as follows: control group, fluoride-treated group (F), and fluoride plus CAPE-treated group (F+CAPE). Fluoride was given orally as 30mg/L NaF solution in spring water daily for 45 days. CAPE was co-administered intraperitoneally (i.p.) with a dose of 10μM/(kgday) for 46 days. Extensive formation of DNA strand breaks, the typical biochemical feature of apoptosis, was detected with the use of the terminal deoxynucleotidyl transferase (TdT)-mediated d UTP-biotin nick and labeling (TUNEL) method. The activities of antioxidant enzymes such as SOD and CAT as well as the concentration of MDA, as an indicator of lipid peroxidation, were measured to evaluate oxidative stress in homogenates of the endometrium. Fluoride administration increased MDA levels (p<0.05), decreased SOD (p<0.05) and CAT (p<0.05) activities. CAPE co-administration with fluoride treatments caused significantly decreased MDA levels (p<0.05), increased SOD (p<0.05) and CAT (p<0.05) activities in endometrial tissue when compared with F alone. Diffuse apoptosis in glandular epithelium and stromal cells was found by TUNEL method in endometrial tissues of rats treated with fluoride. The severity of these lesions was reduced by administration of CAPE. In conclusion, our study demonstrated that MDA may play an important role in the pathogenesis of fluoride-induced oxidative endometrial damage. CAPE may have protective aspects in this process by its antioxidant and anti-inflammatory effect.
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Affiliation(s)
- Mehmet Guney
- Department of Obstetrics and Gynecology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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