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Yuksel TN, Yayla M, Kose D, Halici Z, Bozkurt E, Toktay T. Protective effects of melatonin receptor agonists on endotoxin-induced uveitis in rats. Iran J Basic Med Sci 2023; 26:540-548. [PMID: 37051104 PMCID: PMC10083838 DOI: 10.22038/ijbms.2023.67297.14749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 02/05/2023] [Indexed: 04/14/2023]
Abstract
Objectives Melatonin has an important role in regulating a variety of physiological functions of the body. We investigated the protective effects of Agomelatine (AGO) and Ramelteon (RAME) on Endotoxin-Induced Uveitis (EIU) in rats. Materials and Methods 70 rats were randomly divided into fourteen groups. Healthy group normal saline, (IP), Uveitis group (200 μg/kg lipopolysaccharide (LPS), SC), DEX group (200 μg/kg LPS plus 1 mg/kg dexamethasone, IP), AGO20 group received 200 μg/kg LPS plus 20 mg/kg AGO, AGO40 group received 200 μg/kg LPS plus 40 mg/kg AGO, RAME2 group received 200 μg/kg LPS plus 2 mg/kg RAME, and group RAME4 received 200 μg/kg LPS plus 4 mg/kg RAME. Each group had two subgroups: the 3rd and 24th hr. The eye tissues were collected and investigated biomicroscopically (clinical manifestations and scoring, molecularly(qRT-PCR analyses of tumor necrosis factor-α (TNF-α), vascular endothelial growth factor (VEGF), and caspase 3 and caspase 9 mRNA expression), biochemically (Superoxide dismutase activity (SOD), Glutathione (GSH), and malondialdehyde levels (MDA)) and histopathologically (staining with Harris Hematoxylin and Eosin Y). Results Melatonin receptor agonist treatment reduced the clinical score count of ocular inflammation in the uveitic rats. TNF-α, VEGF, caspase 9, and caspase 3 levels markedly decreased in the uveitic rats. Melatonin receptor agonists significantly ameliorated fixed changes in GSH, SOD, and MDA levels. Melatonin receptor agonists also ameliorated histopathological injury in eye tissues associated with uveitis. Conclusion Melatonin receptor agonists ameliorated the inflammatory response in EIU. These findings suggest that melatonin receptor agonists may represent a potential novel therapeutic drug for uveitis treatment.
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Affiliation(s)
- Tugba Nurcan Yuksel
- Department of Pharmacology, Faculty of Medicine, Tekirdag Namık Kemal University, Tekirdag, Turkey
- Corresponding author: Tugba Nurcan Yuksel. Department of Pharmacology, Faculty of Medicine, Tekirdag Namik Kemal University, Tekirdag, Turkey. Tel: +90 546 573 8141; +90 282 250 5742;
| | - Muhammed Yayla
- Department of Pharmacology, Faculty of Medicine, Kafkas University, Kars, Turkey
| | - Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Sutcu Imam University, Kahramanmaraş, Turkey
| | - Zekai Halici
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
- Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Erdinc Bozkurt
- Department of Ophthalmology, University of Health Science, Ümraniye Education and Research Hospital, Department of Ophthalmology, Istanbul, Turkey
| | - Toktay Toktay
- Department of Histology and Embryology, Faculty of Medicine, Kafkas University, Kars, Turkey
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Un H, Ugan RA, Kose D, Yayla M, Tastan TB, Bayir Y, Halici Z. A new approach to sepsis treatment by rasagiline: a molecular, biochemical and histopathological study. Mol Biol Rep 2022; 49:3875-3883. [PMID: 35301652 DOI: 10.1007/s11033-022-07235-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 01/05/2022] [Accepted: 02/07/2022] [Indexed: 11/25/2022]
Abstract
AIM We aimed to investigate the effects of rasagiline on acute lung injury that develops in the sepsis model induced with the cecal ligation and puncture in rats. MAIN METHODS The rats were separated into the following six groups, Group 1: Sham, Group 2: Sham + Rasagiline 4 mg/kg, Group 3: Sepsis, Group 4: Sepsis + Rasagiline 1 mg/kg, Group 5: Sepsis + Rasagiline 2 mg/kg, Group 6: Sepsis + Rasagiline 4 mg/kg. A total of four holes were opened with a 16-gauge needle through the cecum distal to the point of ligation. KEY FINDINGS Rasagiline treatment increased glutathione level and superoxide dismutase activity while decreased the malondialdehyde level after the sepsis. There was a statistically significant improvement in the doses of 2 mg/kg and 4 mg/kg. Rasagiline also increased Tnf-α, IL1β, IL6, NF-κβand HMGB1 gene expressions in dose-dependent at 2 mg/kg and 4 mg/kg doses. In increased doses, rasagiline prevent the development of edema, the formation of inflammation, and hemorrhage. SIGNIFICANCE Rasagiline exerts both antioxidant and anti-inflammatory effects on the cecal ligation and puncture induced acute lung injury in rats.
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Affiliation(s)
- Harun Un
- Faculty of Pharmacy, Department of Biochemistry, Agri Ibrahim Cecen University, Agri, Turkey.
| | - Rustem Anil Ugan
- Faculty of Pharmacy, Department of Pharmacology, Ataturk University, Erzurum, Turkey
| | - Duygu Kose
- Faculty of Medicine, Department of Pharmacology, Ataturk University, Erzurum, Turkey.,Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Muhammed Yayla
- Faculty of Medicine, Department of Pharmacology, Kafkas University, Kars, Turkey
| | - Tugba Bal Tastan
- Faculty of Medicine, Department of Histology and Embryology, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Yasin Bayir
- Faculty of Pharmacy, Department of Biochemistry, Ataturk University, Erzurum, Turkey
| | - Zekai Halici
- Faculty of Medicine, Department of Pharmacology, Ataturk University, Erzurum, Turkey.,Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
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Keskin H, Tavaci T, Halici H, Yuksel TN, Ozkaraca M, Bilen A, Kose D, Mendil AS, Halici Z. Early administration of milrinone ameliorates lung and kidney injury during sepsis in juvenile rats. Pediatr Int 2022; 64:e14917. [PMID: 34242458 DOI: 10.1111/ped.14917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/08/2021] [Accepted: 07/07/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND A sepsis model was created, induced by cecal ligation and puncture (CLP), in juvenile rat groups. Milrinone (MIL), which is known to have a modulatory effect on pro-inflammatory cytokines, was administered to the designated rat groups in the early period before severe sepsis developed. The study was aimed at investigating the possible protective effects of milrinone on the lung and kidney tissues of rats in the late phase of sepsis. METHODS The rat pups were divided into seven groups with six animals in each group: (1) healthy rats who received no drug; (2) CLP-S12 (sacrificed at hour 12); (3) CLP-S24 (sacrificed at hour 24); (4) CLP-MIL1-S12 (administered with 0.5 mg/kg milrinone at hour 1 and sacrificed at hour 12); (5) CLP-MIL1-S24 (administered with 0.5 mg/kg milrinone at hour 1 and sacrificed at hour 24): (6) CLP-MIL12-S24 (administered with 0.5 mg/kg milrinone at hour 12 and sacrificed at hour 24), (7) and CLP-MIL1,12-S24 (administered with 0.5 mg/kg milrinone at hours 1 and 12 and sacrificed at hour 24). RESULTS Significant differences were found between the early and late administration of milrinone in terms of both molecular and histopathological results. The results showed that the tissues were significantly preserved in the groups in which milrinone had been started in the early period compared to the sepsis control groups and the groups in which milrinone had been started in the late period. CONCLUSIONS In addition to the positive inotropic effects of milrinone, its immunomodulatory properties that result in decreased cytokine storm can be beneficial during early period of sepsis.
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Affiliation(s)
- Halil Keskin
- Division of Pediatric Intensive Care Unit, Department of Pediatrics, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Taha Tavaci
- Department of Pharmacology, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Hamza Halici
- Department of Pharmacology, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Tugba Nurcan Yuksel
- Department of Pharmacology, Namik Kemal University Faculty of Medicine, Tekirdag, Turkey
| | - Mustafa Ozkaraca
- Department of Pathology, Cumhuriyet University Faculty of Veterinary, Sivas, Turkey
| | - Arzu Bilen
- Division of Endocrinology, Department of Internal Medicine, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Duygu Kose
- Department of Pharmacology, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Ali Sefa Mendil
- Department of Pathology, Cumhuriyet University Faculty of Veterinary, Sivas, Turkey
| | - Zekai Halici
- Department of Pharmacology, Ataturk University Faculty of Medicine, Erzurum, Turkey.,Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
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Durur-Subasi I, Kose D, Yayla M, Sirin B, Karaman A, Calik I, Alper F. Does the cardiovascular drug levosimendan prevent iodinated contrast medium nephrotoxicity with glycerol aggravation in rats? Eur Radiol Exp 2021; 5:49. [PMID: 34786647 PMCID: PMC8595362 DOI: 10.1186/s41747-021-00249-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Background We investigated whether levosimendan prevents contrast medium nephrotoxicity with glycerol aggravation in rats. Methods Forty-eight Wistar albino rats were assigned to eight groups (n = 6 × 8). No medication was administered to group I (controls); glycerol (intramuscular injection of 25% glycerol, 10 mL/kg) group II; intravenous iohexol 10 mL/kg to group III; glycerol and iohexol to group IV; iohexol and intraperitoneal levosimendan 0.25 mg/kg to group V; glycerol, iohexol, and levosimendan 0.25 mg/kg to group VI; iohexol and levosimendan 0.5 mg/kg to group VII; and glycerol, iohexol, and levosimendan 0.5 mg/kg to group VIII. One-day water withdrawal and glycerol injection prompted renal damage; iohexol encouraged nephrotoxicity; levosimendan was administered 30 min after glycerol injection and continued on days 2, 3, and 4. The experiment was completed on day 5. Serum blood urea nitrogen (BUN) and creatinine levels, superoxide dismutase (SOD) activity, glutathione (GSH), malondialdehyde (MDA) levels, tumour necrosis factor-α (TNF-α), nuclear factor kappa ß (NFK-ß), interleukin 6 (IL-6), and histopathological marks were assessed. One-way analysis of variance and Duncan’s multiple comparison tests were used. Results Levosimendan changed serum BUN (p = 0.012) and creatinine (p = 0.018), SOD (p = 0.026), GSH (p = 0.012), and MDA (p = 0.011). Levosimendan significantly downregulated TNF-α (p = 0.022), NFK-ß (p = 0.008), and IL-6 (p = 0.033). Histopathological marks of hyaline and haemorrhagic cast were improved in levosimendan-injected groups. Conclusion Levosimendan showed nephroprotective properties due to its vasodilator, oxidative distress decreasing and inflammatory cytokine preventing belongings.
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Affiliation(s)
- Irmak Durur-Subasi
- Department of Radiology, International Faculty of Medicine, Istanbul Medipol University, TEM Avrupa Otoyolu, Goztepe Cikisi No:1, Bagcilar, Istanbul, Turkey. .,Department of Radiology, Ataturk University Faculty of Medicine, Erzurum, Turkey.
| | - Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Muhammed Yayla
- Department of Pharmacology, Kafkas University Faculty of Medicine, Kars, Turkey
| | - Busra Sirin
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Adem Karaman
- Department of Radiology, Ataturk University Faculty of Medicine, Erzurum, Turkey
| | - Ilknur Calik
- Department of Pathology, Faculty of Medicine, Fırat University, Elazig, Turkey
| | - Fatih Alper
- Department of Radiology, Ataturk University Faculty of Medicine, Erzurum, Turkey
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Kose D, Un H, Ugan RA, Halici Z, Cadirci E, Tastan TB, Kahramanlar A. Aprepitant: an antiemetic drug, contributes to the prevention of acute lung injury with its anti-inflammatory and antioxidant properties. J Pharm Pharmacol 2021; 73:1302-1309. [PMID: 34160038 DOI: 10.1093/jpp/rgab088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/20/2021] [Indexed: 12/21/2022]
Abstract
OBJECTIVES We investigated, the effects of aprepitant (APRE) on the lung tissues of rats with an experimental polymicrobial sepsis model (CLP: cecal ligation and puncture) biochemically, molecularly and histopathologically. METHODS A total of 40 rats were divided into 5 groups with 8 animals in each group. Group 1 (SHAM), control group; Group 2 (CLP), cecal ligation and puncture; Group 3 (CLP + APRE10), rats were administered CLP + 10 mg/kg aprepitant; Group 4 (CLP + APRE20), rats were administered CLP + 20 mg/kg aprepitant; and Group 5 (CLP + APRE40), rats were administered CLP + 40 mg/kg aprepitant. A polymicrobial sepsis model was induced with CLP. After 16 h, lung tissues were taken for examination. Tumour necrosis factor α (TNF-α) and nuclear factor-kappa b (NFK-b) messenger ribonucleic acid (mRNA) expressions were analysed by real-time PCR (RT-PCR), biochemically antioxidant parameters such as superoxide dismutase (SOD) and glutathione (GSH) and oxidant parameters such as malondialdehyde (MDA) and lung damage histopathologically. KEY FINDINGS AND CONCLUSIONS The GSH level and SOD activity increased while the MDA level and the expressions of TNF-α and NFK-b were reduced in the groups treated with APRE, especially in the CLP + APRE40 group. The histopathology results supported the molecular and biochemical results.
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Affiliation(s)
- Duygu Kose
- Clinical Research, Development and Design Application, and Research Center, Ataturk University, Erzurum, Turkey
| | - Harun Un
- Faculty of Pharmacy, Department of Biochemistry, Agri İbrahim Çeçen University, Ağrı, Turkey
| | - Rustem Anil Ugan
- Faculty of Pharmacy, Department of Pharmacology, Atatürk University, Erzurum, Turkey
| | - Zekai Halici
- Clinical Research, Development and Design Application, and Research Center, Ataturk University, Erzurum, Turkey
| | - Elif Cadirci
- Faculty of Medicine, Department of Pharmacology, Atatürk University, Erzurum, Turkey
| | - Tugba Bal Tastan
- Faculty of Medicine, Department of Histology and Embryology Department, Binali Yıldırım University, Erzincan, Turkey
| | - Aysenur Kahramanlar
- Faculty of Pharmacy, Department of Biochemistry, Ataturk University, Erzurum, Turkey
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Bayraktutan Z, Dincer B, Keskin H, Kose D, Bilen A, Toktay E, Sirin B, Halici Z. Roflumilast as a Potential Therapeutic Agent for Cecal Ligation and Puncture-Induced Septic Lung Injury. J INVEST SURG 2021; 35:605-613. [PMID: 33843406 DOI: 10.1080/08941939.2021.1908462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE/AIMS This study focused on delineating the possible effects of roflumilast (ROF), a selective phosphodiesterase 4 (PDE4) inhibitor, in rats with cecal ligation and puncture (CLP)-induced polymicrobial sepsis, and investigated whether ROF can act as a protective agent in sepsis-induced lung damage. MATERIAL AND METHODS Four experimental groups were organized, each comprising eight rats: Control, Sepsis, Sepsis + ROF 0.5 mgkg-1, and Sepsis + ROF 1 mgkg-1 groups. A polymicrobial sepsis model was induced in the rats by cecal ligation and puncture under anesthesia. Twelve hours after sepsis induction, the lungs were obtained for biochemical, molecular, and histopathological analyses. RESULTS In the sepsis group's lungs, the TNF-α, IL-1β, and IL-6 mRNA expression levels peaked in the sepsis group's lung tissues, and ROF significantly decreased these levels compared with the sepsis group dose-dependently. ROF also significantly decreased MDA levels in septic lungs and increased antioxidant parameters (SOD and GSH) compared with the sepsis group. Histopathological analysis results supported biochemical and molecular results. CONCLUSIONS ROF, a PDE4 inhibitor, suppressed the expression levels of pro-inflammatory cytokines, alleviated lung damage (probably by blocking neutrophil infiltration), and increased the capacity of the antioxidant system.
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Affiliation(s)
| | - Busra Dincer
- Department of Pharmacology, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Halil Keskin
- Department of Child Health and Diseases, Ataturk University, Erzurum, Turkey
| | - Duygu Kose
- Department of Pharmacology, Ataturk University, Erzurum, Turkey
| | - Arzu Bilen
- Department of Internal Medicine, Ataturk University, Erzurum, Turkey
| | - Erdem Toktay
- Department of Histology and Embryology, Kafkas University, Kars, Turkey
| | - Busra Sirin
- Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Zekai Halici
- Department of Pharmacology, Ataturk University, Erzurum, Turkey.,Department of Internal Medicine, Ataturk University, Erzurum, Turkey.,Department of Histology and Embryology, Kafkas University, Kars, Turkey.,Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
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Akpinar E, Kutlu Z, Kose D, Aydin P, Tavaci T, Bayraktutan Z, Yuksel TN, Yildirim S, Eser G, Dincer B. Protective Effects of Idebenone against Sepsis Induced Acute Lung Damage. J INVEST SURG 2021; 35:560-568. [PMID: 33722148 DOI: 10.1080/08941939.2021.1898063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND/AIMS Sepsis is an uncontrolled systemic infection, withcomplex pathophysiology that may result in acute lung organ damage and cause multiple organ failure. Although much research has been conducted to illuminate sepsis's complex pathophysiology, sepsis treatment protocols are limited, and sepsis remains an important cause of mortality andmorbidity in intensive care units.Various studies have shown that idebenone (IDE) possesses strong antioxidant properties, which inhibit lipid peroxidation and protect cells from oxidative damage. The present study aimed to evaluate the protective effects of IDE against lung injury in a cecal ligation and puncture (CLP)-induced sepsis rat model. METHODS Male albino Wistar rats were used. The animals were divided into a healthy control (no treatment), CLP, IDE control (200 mg/kg), and CLP + IDE subgroups (50 mg/kg, 100 mg/kg, and 200 mg/kg), with nine rats in each group.IDE was administered 1 h after CLP induction.To evaluate the protective effects of IDE, lung tissues were collected 16 h after sepsis for biochemical, immunohistochemical staining, and histopathological examination. RESULTS IDE significantly ameliorated sepsis-induced disturbances in oxidative stress-related factors, with its effects increasing in accordance with the dose.IDE also abolished histopathological changes in lung tissues associated with CLP.Furthermore, interleukin 1 beta (IL-1β)and tumor necrosis factor-alpha (TNF-α) immunopositivity markedly decreased in the septic rats following IDE treatment. CONCLUSIONS IDE largely mitigated the inflammatory response in sepsis-induced lung injury by decreasing free radicals and preventing lipid peroxidation. The results suggest that IDE may represent a potential novel therapeutic drug for sepsis treatment.
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Affiliation(s)
- Erol Akpinar
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Zerrin Kutlu
- Department of Biochemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.,Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Pelin Aydin
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.,Department of Anesthesiology and Reanimation, Educational and Research Hospital, Erzurum, Turkey
| | - Taha Tavaci
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Zafer Bayraktutan
- Department of Biochemistry, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Tugba Nurcan Yuksel
- Department of Pharmacology, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
| | - Gizem Eser
- Department of Pathology, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
| | - Busra Dincer
- Department of Pharmacology, Faculty of Pharmacy, Erzincan Binali Yildirim University, Erzincan, Turkey
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Ugan RA, Un H, Kose D, Cadirci E, Bal Tastan T, Yayla M, Halici Z. Can aprepitant used for nausea and vomiting be good gastrointestinal complaints? Naunyn Schmiedebergs Arch Pharmacol 2020; 393:2463-2472. [PMID: 32743741 DOI: 10.1007/s00210-020-01956-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/27/2020] [Indexed: 12/14/2022]
Abstract
Aprepitant is a selective SP/NK-1 receptor antagonist and used in postoperative and chemotherapeutics induced emesis and vomiting. The aim of our study is to show aprepitant may have beneficial effects on gastrointestinal complaints in cancer patients undergoing chemotherapeutics by indomethacin-induced gastric ulcer model. A total of 48 rats were fasted 24 h for ulcer experiment. Aprepitant doses of 5, 10, 20, and 40 mg/kg were evaluated for their antiulcer activity. Omeprazole (20 mg/kg) was used as a positive control group. Six hours after 25 mg/kg indomethacin administration, all stomachs were dissected out. After macroscopic analyses, tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), COX-1, and COX-2 mRNA levels and SOD activity, and GSH and MDA levels of stomachs were determined. Histopathological examinations were evaluated. Aprepitant administration exerted 48.14%, 49.62%, 65.92%, and 76.77% ulcer inhibition effects at 5, 10, 20, and 40 mg/kg, respectively. Aprepitant administration decreased oxidative stress and inflammatory parameters in stomach tissues dose dependently. Aprepitant administration increased stomach COX-2 mRNA levels at 20 and 40 mg/kg doses. Although aprepitant appears to be disadvantageous in terms of treating gastric ulcer due to COX enzyme inhibition according to the previous studies, aprepitant has been shown to have ulcer healing effect in our study. When aprepitant is given as an anti-nausea and vomiting drug to cancer patients undergoing chemotherapy, we can argue that it will not be necessary to add a new gastric protective agent as it also shows beneficial effects in gastrointestinal complaints.
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Affiliation(s)
- Rustem Anil Ugan
- Department of Pharmacology, Faculty of Pharmacy, Ataturk University, 25240, Erzurum, Turkey.
| | - Harun Un
- Department of Biochemistry, Faculty of Pharmacy, Agri Ibrahim Cecen University, Agri, Turkey
| | - Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Elif Cadirci
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
- Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Tugba Bal Tastan
- Department of Histology and Embryology, Faculty of Medicine, Erzincan Binali Yidirim University, Erzincan, Turkey
| | - Muhammed Yayla
- Department of Pharmacology, Faculty of Medicine, Kafkas University, Kars, Turkey
| | - Zekai Halici
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
- Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
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Kose A, Kose D, Halici Z, Aydin A, Ezirmik N, Karsan O, Toktay E. Is Ebselen A Therapeutic Target in Fracture Healing? Eurasian J Med 2020; 52:171-175. [PMID: 32612426 DOI: 10.5152/eurasianjmed.2020.18443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/16/2019] [Indexed: 11/22/2022] Open
Abstract
Objective We investigated the effect of ebselen on fracture healing in an experimental fracture model. Materials and Methods We divided rats into two groups, 6 rats in each: the experimental femur fracture control group and the ebselen treatment group with an experimental femur fracture. In the experimental femur fracture control group, we created only experimental femur fracture. In the ebselen treatment group, we administered ebselen treatment with creating an experimental femur fracture. We administered ebselen intraperitoneally at 5 mg/kg once daily for 1 month after the 1st day of experimental femur fracture in the ebselen treatment group. We evaluated the recovery status of fractured femurs at the end of 1st month with radiographic, histopathological, and immunohistochemical methods. Results According to the radiographic fracture healing scores, ebselen treatment increased the extent of new bone formation and fracture cartilage callus significantly compared to the control group. According to the histopathological recovery scores, ebselen treatment significantly improved healing scores compared to the control group. Ebselen treatment increased the expression scores of bone healing markers in the ebselen treatment group, such as vascular endothelial growth factor and osteocalcin, compared to the control group. Conclusion We demonstrated that ebselen treatment increases the formation of new bone in the femur in an experimentally created femoral fracture model. Ebselen has been shown to improve the bone fracture healing in a radiological and histopathological manner, and more detailed studies are needed.
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Affiliation(s)
- Ahmet Kose
- Department of Orthophedics and Traumatology, Erzurum Regional Training and Research Hospital, Erzurum, Turkey
| | - Duygu Kose
- Department of Pharmacology, Ataturk University School of Medicine, Erzurum, Turkey
| | - Zekai Halici
- Department of Pharmacology, Ataturk University School of Medicine, Erzurum, Turkey
| | - Ali Aydin
- Department of Orthophedics and Traumatology, Ataturk University School of Medicine, Erzurum, Turkey
| | - Naci Ezirmik
- Department of Orthophedics and Traumatology, Ataturk University School of Medicine, Erzurum, Turkey
| | - Orhan Karsan
- Department of Orthophedics and Traumatology, Ataturk University School of Medicine, Erzurum, Turkey
| | - Erdem Toktay
- Department of Histology and Embryology, Ataturk University, School of Medicine, Erzurum, Turkey
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Abstract
Nasal polyposis (NP) is an inflammatory disease of the paranasal sinuses and nasal cavity. The primary purpose of our study is to determine the expression of 5-HT7 receptors both in nasal polyps and in healthy tissue in the nasal cavity. The subsequent aim is to compare the expression of 5-HT7 receptors in patients with NP and in inferior turbinate tissue (control).The study included 60 participants (40 with NP and 20 controls) aged 35 to 62 years. Nasal polyp samples were collected from all patients and relative 5-HT7 receptor expression analyses were performed. RT-PCR analysis of nasal polyps and control tissue identified 5-HT7 receptor expression in the nasal cavities of controls. This expression was approximately 67 times higher in nasal polyp tissue than in healthy tissue. Our study identifies the expression of 5-HT7 receptors in the nasal cavity for the first time. It is also the first demonstration of increased 5-HT7 receptor expression in tissue from nasal polyps, which occur in the paranasal sinuses and nasal cavity.
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Affiliation(s)
- Muhammed Yayla
- Department of Pharmacology, Faculty of Medicine, Kafkas University, Kars, Turkey
| | - Zekai Halici
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Arzu Tatar
- Department of Ear, Nose and Throat Diseases, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Mustafa SitkiGozeler
- Department of Ear, Nose and Throat Diseases, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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Un H, Ugan RA, Kose D, Bayir Y, Cadirci E, Selli J, Halici Z. A novel effect of Aprepitant: Protection for cisplatin-induced nephrotoxicity and hepatotoxicity. Eur J Pharmacol 2020; 880:173168. [PMID: 32423870 DOI: 10.1016/j.ejphar.2020.173168] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 04/23/2020] [Accepted: 05/04/2020] [Indexed: 12/29/2022]
Abstract
Cisplatin is widely used chemotherapeutic drug and have some serious side effects as tissue toxicity and nausea and vomiting. Aprepitant is used in clinic as an anti-emetic drug for cisplatin treated patient to prevent nausea and vomiting. We aimed to investigate the protective effects of Aprepitant on cisplatin-induced nephrotoxicity and hepatotoxicity. In total 42 male rats were separated into six groups (n = 7). A single dose of cisplatin (10 mg/kg i.p.) was administered to induce toxicity on first day. Different doses of Aprepitant (5, 10 and 20 mg/kg, p.o.) were given to treatment groups during 3 days. After the experimental procedures serum enzymes (ALT, AST, ALP, BUN and Creatinin), kidney and liver oxidative parameters (SOD, GSH and MDA), inflammatory cytokines (TNF-α and NF-κB) and Cyp2e1 expressions analyzed. Histopathological investigations also performed for all groups. Cisplatin caused tissue toxicity in both kidney and liver. Serum enzymes, tissue cytokines and oxidative stress were increased after the Cis treatment. Aprepitant treatment normalized all parameters compared to cisplatin treated group. Cisplatin significantly increased the Cyp2e1 expression in the kidney while significantly decreased in the liver compared to Healthy group. Histopathologically, it was shown that cisplatin causes a lot of abnormal structures as inflammatory infiltration and necrosis on the liver and kidney. Similar the biochemical and molecular results, aprepitant showed positive effects on tissue pathological parameters. With its main anti-emetic effect, Aprepitant treatment may be an effective option for cancer patients if they have additional injury as nephrotoxicity and hepatotoxicity due to cisplatin.
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Affiliation(s)
- Harun Un
- Agri Ibrahim Cecen University, Faculty of Pharmacy, Department of Biochemistry, Agri, Turkey.
| | - Rustem Anil Ugan
- Ataturk University, Faculty of Pharmacy, Department of Pharmacology, Erzurum, Turkey
| | - Duygu Kose
- Ataturk University, Faculty of Medicine, Department of Pharmacology, Erzurum, Turkey
| | - Yasin Bayir
- Ataturk University, Faculty of Pharmacy, Department of Biochemistry, Erzurum, Turkey
| | - Elif Cadirci
- Ataturk University, Faculty of Medicine, Department of Pharmacology, Erzurum, Turkey; Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Jale Selli
- Ataturk University, Faculty of Medicine, Department of Histology and Embryology, Erzurum, Turkey
| | - Zekai Halici
- Ataturk University, Faculty of Medicine, Department of Pharmacology, Erzurum, Turkey; Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
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Kose D, Cadirci E, Halici Z, Sirin B, Dincer B. The investigation of possible roles of central 5-HT 7 receptors in antipyretic effect mechanism of paracetamol in LPS-induced hyperthermia model of mice. Inflammopharmacology 2019; 27:1169-1178. [PMID: 31309486 DOI: 10.1007/s10787-019-00617-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/21/2019] [Indexed: 01/01/2023]
Abstract
AIM This study aimed to investigate the role of the 5-HT7 receptor in fever mechanisms and its possible effect on the antipyretic mechanism of paracetamol. MATERIALS AND METHODS The study consisted of eight experimental groups and one control group. Group I: healthy, II: LPS, III: LPS + PARA, IV: LPS + AGO, V: LPS + ANTA, VI: LPS + AGO + ANTA, VII: LPS + AGO + PARA, VIII: LPS + ANTA + PARA, and IX: LPS + AGO + ANTA + PARA. Rectal temperatures were measured with a rectal thermometer. At the end of the experiment, tissues were examined molecularly. Real-time PCR mRNA expression analyses were performed for the 5-HT7 receptor, IL-6, and TNF-α in hypothalamus tissue. RESULTS The mean differences in rectal temperature increased in the LPS, LPS + ANTA, and LPS + AGO + ANTA groups when compared to the healthy group and decreased in the LPS + PARA, LPS + AGO, LPS + AGO + PARA, and LPS + AGO + ANTA + PARA groups when compared to the healthy group. The IL-6 and TNF-α mRNA expression increased in the LPS, LPS + ANTA, and LPS + AGO + ANTA groups when compared to the healthy group in the 2nd and 4th hours. The IL-6 and TNF-α expression decreased in the LPS + PARA, LPS + AGO, LPS + AGO + PARA, and LPS + AGO + ANTA + PARA groups when compared to the LPS group in the 2nd and 4th hours. The 5-HT7 receptor mRNA expression increased in the LPS group when compared to the healthy group in the 2nd hour. The 5-HT7 receptor mRNA expression decreased in the LPS + AGO and LPS + AGO + PARA groups when compared to the LPS group in the 2nd hour. The 5-HT7 receptor mRNA expression increased the in LPS + ANTA and LPS + ANTA + PARA groups when compared to the LPS group in the 2nd hour. CONCLUSION The 5-HT7 receptor is a potential defense mechanism in stopping fever and the antipyretic property of paracetamol is not due to the 5-HT7 receptor.
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Affiliation(s)
- Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Ataturk University, 25240, Erzurum, Turkey
| | - Elif Cadirci
- Department of Pharmacology, Faculty of Medicine, Ataturk University, 25240, Erzurum, Turkey
| | - Zekai Halici
- Department of Pharmacology, Faculty of Medicine, Ataturk University, 25240, Erzurum, Turkey.
| | - Busra Sirin
- Department of Pharmacology, Faculty of Medicine, Ataturk University, 25240, Erzurum, Turkey
| | - Busra Dincer
- Department of Pharmacology, Faculty of Pharmacy, Binali Yıldırım University, 24100, Erzincan, Turkey
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Abstract
Nasal polyposis (NP) is an inflammatory disease of the paranasal sinuses and nasal cavity. The primary purpose of our study is to determine the expression of 5-HT7 receptors both in nasal polyps and in healthy tissue in the nasal cavity. The subsequent aim is to compare the expression of 5-HT7 receptors in patients with NP and in inferior turbinate tissue (control). The study included 60 participants (40 with NP and 20 controls) aged 35 to 62 years. Nasal polyp samples were collected from all patients and relative 5-HT7 receptor expression analyses were performed. Reverse transcription polymerase chain reaction analysis of nasal polyps and control tissue identified 5-HT7 receptor expression in the nasal cavities of controls. This expression was approximately 67 times higher in nasal polyp tissue than in healthy tissue. Our study identifies the expression of 5-HT7 receptors in the nasal cavity for the first time and the first demonstration of increased 5-HT7 receptor expression in tissue from nasal polyps, which occur in the paranasal sinuses and nasal cavity.
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Affiliation(s)
- Muhammed Yayla
- Department of Pharmacology, Kafkas University Faculty of Medicine Kars, Turkey
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Tatar A, Yayla M, Kose D, Halici Z, Yoruk O, Polat E. The role of endothelin-1 and endothelin receptor antagonists in allergic rhinitis inflammation: ovalbumin-induced rat model. Rhinology 2017. [DOI: 10.4193/rhin15.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Halici Z, Polat B, Cadirci E, Topcu A, Karakus E, Kose D, Albayrak A, Bayir Y. Inhibiting renin angiotensin system in rate limiting step by aliskiren as a new approach for preventing indomethacin induced gastric ulcers. Chem Biol Interact 2016; 258:266-75. [DOI: 10.1016/j.cbi.2016.09.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 09/07/2016] [Accepted: 09/15/2016] [Indexed: 01/01/2023]
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Tatar A, Yayla M, Kose D, Halici Z, Yoruk O, Polat E. The role of endothelin-1 and endothelin receptor antagonists in allergic rhinitis inflammation: ovalbumin-induced rat model. Rhinology 2016; 54:266-72. [PMID: 27016898 DOI: 10.4193/rhino15.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Desloratadine is a biologically active metabolite of loratadine which is indicated for the treatment of allergic rhinitis. Bosentan is a dual endothelin receptor antagonist used to treatment of pulmonary artery hypertension (PAH). In this study, we aimed to determine the role of endothelins in allergic rhinitis (AR) and the effects of endothelin receptor antagonists in AR rat models through comparison with desloratadine. METHODS In total, 20 adult Sprague-Dawley rats were used in this study. An ovalbumin-induced allergic rhinitis model was formed in three study groups except for the control group. Bosentan (100 mg/kg/day) was given to the bosentan-treated group for 7 days and desloratadine (10 mg/kg/day) was administered to the antihistaminic-treated group for 7 days. Nasal symptom scorings and histopathological examinations of the nasal tissues were carried out. Serum IgE levels and ET-1 and TNF-alpha mRNA expression levels were analysed. Between group comparisons for nasal symptoms, histopathological analysis, and molecular analyses were performed with a one-way ANOVA and Duncans multiple comparison tests. Significance was accepted at p smaller than 0.05. RESULTS Bosentan inhibited nasal symptom more significantly than desloratadine. The IgE level, ET-1 and TNF-alpha mRNA expression levels statistically increased in the allergic rhinitis group when compared to other groups. Conversely, the bosentan-treatment group showed a significant recovery from the same parameters. The deterioration in histopathological parameters reached the highest levels in the allergic rhinitis group. The histopathological findings were close to those of the control group in the bosentan and antihistaminic-treated group. CONCLUSIONS ET-1 is one of the mediators that impact AR development and ET-1 antagonists can be useful for symptom control and for decreasing allergic inflammation in AR patients.
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Affiliation(s)
- A Tatar
- Department of Otolaryngology, Head and Neck Surgery, Ataturk University, Medical Faculty, Erzurum, Turkey
| | - M Yayla
- Department of Pharmacology, Ataturk University, Medical Faculty, Erzurum, Turkey
| | - D Kose
- Department of Pharmacology, Ataturk University, Medical Faculty, Erzurum, Turkey
| | - Z Halici
- Department of Pharmacology, Ataturk University, Medical Faculty, Erzurum, Turkey
| | - O Yoruk
- Department of Otolaryngology, Head and Neck Surgery, Ataturk University, Medical Faculty, Erzurum, Turkey
| | - E Polat
- Department of Embryology and Histology, Ataturk University, Medical Faculty, Erzurum, Turkey
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Karaman A, Diyarbakir B, Durur-Subasi I, Kose D, Özbek-Bilgin A, Topcu A, Gundogdu C, Durur-Karakaya A, Bayraktutan Z, Alper F. A novel approach to contrast-induced nephrotoxicity: the melatonergic agent agomelatine. Br J Radiol 2016; 89:20150716. [PMID: 26886874 DOI: 10.1259/bjr.20150716] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To study the potential nephroprotective role of agomelatine in rat renal tissue in cases of contrast-induced nephrotoxicity (CIN). The drug's action on the antioxidant system and proinflammatory cytokines, superoxide dismutase (SOD) activity, levels of glutathione (GSH) and malondialdehyde (MDA) and the gene expression of interleukin-6 (IL-6), tumour necrosis factor (TNF)-α and nuclear factor kappa B (NF-κB) was measured. Tubular necrosis and hyaline and haemorrhagic casts were also histopathologically evaluated. METHODS The institutional ethics and local animal care committees approved the study. Eight groups of six rats were put on the following drug regimens: Group 1: healthy controls, Group 2: GLY (glycerol), Group 3: CM (contrast media--iohexol 10 ml kg(-1)), Group 4: GLY+CM, Group 5: CM+AGO20 (agomelatine 20 mg kg(-1)), Group 6: GLY+CM+AGO20, Group 7: CM+AGO40 (agomelatine 40 mg kg(-1)) and Group 8: GLY+CM+AGO40. The groups were evaluated by one-way analysis of variance and Duncan's multiple comparison test. RESULTS Agomelatine administration significantly improved the serum levels of blood urea nitrogen (BUN) and creatinine, SOD activity, GSH and MDA. The use of agomelatine had substantial downregulatory consequences on TNF-α, NF-κB and IL-6 messenger RNA levels. Mild-to-severe hyaline and haemorrhagic casts and tubular necrosis were observed in all groups, except in the healthy group. The histopathological scores were better in the agomelatine treatment groups. CONCLUSION Agomelatine has nephroprotective effects against CIN in rats. This effect can be attributed to its properties of reducing oxidative stress and inhibiting the secretion of proinflammatory cytokines (NF-κB, TNF-α and IL-6). ADVANCES IN KNOWLEDGE CIN is one of the most important adverse effects of radiological procedures. Renal failure, diabetes, malignancy, old age and non-steroidal anti-inflammatory drug use pose the risk of CIN in patients. Several clinical studies have investigated ways to avoid CIN. Theophylline/aminophylline, statins, ascorbic acid and iloprost have been suggested for this purpose. Agomelatine is one of the melatonin ligands and is used for affective disorders and has antioxidant features. In this study, we hypothesized that agomelatine could have nephroprotective, antioxidant and anti-inflammatory effects against CIN in rats.
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Affiliation(s)
- Adem Karaman
- 1 Department of Radiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Busra Diyarbakir
- 2 Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Irmak Durur-Subasi
- 3 Department of Radiology, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Duygu Kose
- 2 Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Asli Özbek-Bilgin
- 2 Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Atilla Topcu
- 4 Department of Pharmacology, Faculty of Medicine, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Cemal Gundogdu
- 5 Department of Pathology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | | | - Zafer Bayraktutan
- 7 Department of Biochemistry, Erzurum Regional Training and Research Hospital, Erzurum, Turkey
| | - Fatih Alper
- 1 Department of Radiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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Mihmanli V, Cetinkaya N, Kilickaya A, Kilinc A, Kose D. Giant cervical myoma associated with urinary incontinence and hydroureteronephrosis. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1947.2015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Cayir A, Ugan RA, Albayrak A, Kose D, Akpinar E, Cayir Y, Atmaca HT, Bayraktutan Z, Kara M. The lung endothelin system: a potent therapeutic target with bosentan for the amelioration of lung alterations in a rat model of diabetes mellitus. J Endocrinol Invest 2015; 38:987-98. [PMID: 25847324 DOI: 10.1007/s40618-015-0282-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 03/24/2015] [Indexed: 01/14/2023]
Abstract
PURPOSE The aim of this study is to show the effect of a new mechanism on endothelin (ET) receptors in the physiopathology of diabetes-related pulmonary injury. We tested the hypothesis that dual ET-1 receptor antagonism via bosentan can reverse diabetes-induced lung injury. METHODS The rats (24 male) were separated into four groups: group 1 (HEALTHY): Control group; group 2 (DM): Streptozotocin 60 mg/kg (i.p.); group 3 (DM + BOS-1): Diabetes + bosentan 50 mg/kg per-os; group 4 (DM + BOS-2): Diabetes + bosentan 100 mg/kg per-os. The bosentan treatment was initiated immediately after the onset of STZ-induced diabetes and continued for 6 weeks. RESULTS In the treatment group, SOD activity was significantly increased, although GSH and MDA levels and TNF-α and TGF-β gene expression were decreased. Bosentan 50 mg/kg and bosentan 100 mg/kg showed a significantly down-regulatory effect on ET-1, ET-A, and ET-B mRNA expression. CONCLUSIONS In conclusion, increased endothelin levels in the lung associated with diabetes may be one cause of endothelial dysfunction, cytokine increase, and oxidant/antioxidant imbalance in the pathogenesis of complications that may develop during diabetes. With its multiple effects, bosentan therapy may be an effective option against complications that may develop in association with diabetes.
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Affiliation(s)
- A Cayir
- Department of Pediatric Endocrinology, Erzurum Regional Education and Research Hospital, 25100, Erzurum, Turkey,
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Palabiyik SS, Karakus E, Akpinar E, Halici Z, Bayir Y, Yayla M, Kose D. The Role of Urotensin Receptors in the Paracetamol-Induced Hepatotoxicity Model in Mice: Ameliorative Potential of Urotensin II Antagonist. Basic Clin Pharmacol Toxicol 2015; 118:150-9. [DOI: 10.1111/bcpt.12447] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 07/02/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Saziye S. Palabiyik
- Department of Pharmaceutical Toxicology; Faculty of Pharmacy; Ataturk University; Erzurum Turkey
| | - Emre Karakus
- Department of Pharmacology and Toxicology; Faculty of Veterinary Medicine; Ataturk University; Erzurum Turkey
| | - Erol Akpinar
- Department of Pharmacology; Faculty of Medicine; Ataturk University; Erzurum Turkey
| | - Zekai Halici
- Department of Pharmacology; Faculty of Medicine; Ataturk University; Erzurum Turkey
| | - Yasin Bayir
- Department of Biochemistry; Faculty of Pharmacy; Ataturk University; Erzurum Turkey
| | - Muhammed Yayla
- Department of Pharmacology; Faculty of Medicine; Ataturk University; Erzurum Turkey
| | - Duygu Kose
- Department of Pharmacology; Faculty of Medicine; Ataturk University; Erzurum Turkey
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Celik M, Kose A, Kose D, Karakus E, Akpinar E, Calik M, Dostbil A, Calikoglu C, Aksoy M, Ozel L. The double-edged sword: effects of pregabalin on experimentally induced sciatic nerve transection and crush injury in rats. Int J Neurosci 2014; 125:845-54. [PMID: 25340254 DOI: 10.3109/00207454.2014.978976] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM The aim of this study was to research the effects of pregabalin on experimentally induced peripheral nerve crush injuries in rats. MATERIAL AND METHOD Forty-two adult female Wistar albino rats were divided into seven groups: 1st group: healthy; 2nd group: axonotmesis control; 3rd group: anastomosis control; 4th group: axonotmesis+30 mg/kg of pregabalin; 5th group: axonotmesis+60 mg/kg of pregabalin; 6th group: anastomosis+30 mg/kg of pregabalin; 7th group: anastomosis+60 mg/kg of pregabalin. Evaluation of the sciatic functional index (SFI) was performed one day before and on days 7, 14, 21, and 28 following surgery. The right sciatic nerves of all animals were examined histopathologically and molecularly. RESULTS After 28 days post-injury, the histopathological regeneration in peripheral nerve injuries for pregabalin 30 mg/kg treated groups was significantly better than that of the control groups. Also the SFI increases and TGF-β gene expression up-regulation were significantly better in pregabalin 30 mg/kg treated groups. CONCLUSION The histopathological, functional and molecular data suggest that pregabalin 30 mg/kg treatment in axonotmesis and anostomosis groups improves nerve regeneration and increases SFI in peripheral nerve injuries by activating antiinflammatory cytokine TGF-β1.
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Affiliation(s)
- Mine Celik
- a Ataturk University, Faculty of Medicine, Department of Anesthesiology and Reanimation , Erzurum , Turkey
| | - Ahmet Kose
- b Department of Orthophedics and Traumatology, Horasan Public Hospital , Erzurum , Turkey
| | - Duygu Kose
- c Ataturk University, Faculty of Medicine, Department of Pharmacology , Erzurum , Turkey
| | - Emre Karakus
- d Ataturk University, Faculty of Veterinary, Department of Pharmacology and Toxicology , Erzurum , Turkey
| | - Erol Akpinar
- c Ataturk University, Faculty of Medicine, Department of Pharmacology , Erzurum , Turkey
| | - Muhammed Calik
- e Ataturk University, Faculty of Medicine, Department of Pathology , Erzurum , Turkey
| | - Aysenur Dostbil
- a Ataturk University, Faculty of Medicine, Department of Anesthesiology and Reanimation , Erzurum , Turkey
| | - Cagatay Calikoglu
- f Ataturk University, Faculty of Medicine, Department of Brain Surgery , Erzurum , Turkey
| | - Mehmet Aksoy
- a Ataturk University, Faculty of Medicine, Department of Anesthesiology and Reanimation , Erzurum , Turkey
| | - Lutfu Ozel
- g Ataturk University, Faculty of Medicine, Department of Neurology , Erzurum , Turkey
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Scheidbach H, Ptok H, Schubert D, Kose D, Hügel O, Gastinger I, Köckerling F, Lippert H. Palliative stoma creation: comparison of laparoscopic vs conventional procedures. Langenbecks Arch Surg 2007; 394:371-4. [PMID: 17690903 DOI: 10.1007/s00423-007-0220-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2007] [Accepted: 07/26/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND The creation of a stoma is an established therapeutic concept for the palliation of non-resectable rectal carcinomas and advanced tumours infiltrating the pelvis. MATERIALS AND METHODS In two prospective country-wide multicentre studies, each conducted over a similar period of time, the peri-operative course and postoperative short-term outcomes of laparoscopic vs laparotomy-based stoma construction were compared. RESULTS A total of 90 patients underwent palliative laparoscopic construction; 550 patients received a stoma via a laparotomy. The intra-operative complication rate was lower after open surgery than after laparoscopic surgery (2.7 vs 5.6%; p = 0.15), although the difference was not significant. With regard to general (30.9 vs 15.6%; p = 0.003) and also specific postoperative complications (13.8 vs 5.6%; p = 0.029), however, a significant advantage of the laparoscopic approach was seen. Furthermore, mortality in the laparoscopic group was also significantly lower (4.4 vs 14.0%; p = 0.011). CONCLUSION Palliative stoma done via laparoscopy had significantly better outcomes in terms of postoperative morbidity and mortality in comparison with the open surgical procedure.
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Affiliation(s)
- H Scheidbach
- Department of Surgery, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany.
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Anlar O, Irmak H, Tombul T, Akdeniz H, Caksen H, Kose D, Ceylan A. Food-borne botulism cases in Van region in eastern Turkey: importance of electromyography in the diagnosis. Electromyogr Clin Neurophysiol 2003; 43:373-6. [PMID: 14535050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
OBJECTIVES Food-borne botulism is an acute form of poisoning that results from ingestion of a toxin produced by Clostridium botulinum. Botulism toxin causes its major effect by blocking neuromuscular transmission in autonomic and motor nerve terminals. METHODS In this study, we present the features of eleven cases of food-borne botulism admitted to our hospital in 2001. All of the cases were caused by home-prepared foods; green beans. In these cases, the main symptoms and signs were generalized muscular weakness, dry mouth, dysphagia, disponea and diplopia. Electrophysiological studies were performed on four patients. RESULTS Motor conduction studies showed that compound muscle action potentials were decreased with normal latencies and conduction velocities. The needle electromyography showed signs of denervation potentials like fibrillation and positive waves in four patients. Repetitive nerve stimulation with high frequency (20 Hz) induced an increment close to 100% in the amplitudes in 2 of 4 patients. CONCLUSION Although toxin could not be detected in the patients, the electromyographic findings supported our diagnosis. We concluded that electromyography has an important role in diagnosis of botulism, especially in the condition that serologic tests are negative or cannot be performed.
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Affiliation(s)
- O Anlar
- Department of Neurology, Yuzuncu Yil University, Faculty of Medecine, 65200 Van, Turkey.
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