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Şehitoğlu MH, Öztopuz RÖ, Kılınç N, Ovalı MA, Büyük B, Gulcin İ. Thymol regulates the Endothelin-1 at gene expression and protein synthesis levels in septic rats. Chem Biol Interact 2023; 375:110426. [PMID: 36870466 DOI: 10.1016/j.cbi.2023.110426] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/24/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
Sepsis is a serious systemic inflammatory response to infections. In this study, effects of thymol treatments on sepsis response were investigated. A total of 24 rats were randomly divided into 3 different treatment groups, namely as Control, Sepsis and Thymol. A sepsis model was created with a cecal ligation and perforation (CLP) in the sepsis group. For the treatment group, 100 mg/kg dose of thymol was administered via oral gavage and sepsis was established with a CLP after 1 h. All rats were sacrificed at 12 h post-opia. Blood and tissue samples were taken. ALT, AST, urea, creatinine and LDH were evaluated to assess the sepsis response in separated sera. Gene expression analysis was conducted for ET-1, TNF-α, IL-1 in lung, kidney and liver tissue samples. ET-1 and thymol interactions were determined by molecular docking studies. The ET-1, SOD, GSH-Px and MDA levels were determined by ELISA method. Genetic, biochemical and histopathological results were evaluated statistically. The pro-inflammatory cytokines and ET-1 gene expression revealed a significant decrease in the treatment groups, while there was an increase in septic groups. SOD, GSH-Px and MDA levels of rat tissues were significantly different in the thymol groups as compared to the sepsis groups (p < 0.05). Likewise, ET-1 levels were significantly reduced in the thymol groups. In terms of serum parameters, present findings were consistent with the literature. It was concluded based on present findings that thymol therapy may reduce sepsis-related morbidity, which would be beneficial in the early phase of the sepsis.
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Affiliation(s)
- Müşerref Hilal Şehitoğlu
- Department of Medical Biochemistry, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Rahime Özlem Öztopuz
- Department of Biophysics, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Namık Kılınç
- Department of Medical Services and Techniques, Vocational School of Higher Education for Healthcare Services, Iğdır University, Iğdır, Turkey
| | - Mehmet Akif Ovalı
- Department of Physiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Başak Büyük
- Department of Histology and Embryology, Faculty of Medicine, İzmir Demokrasi University, İzmir, Turkey
| | - İlhami Gulcin
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey.
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Akar A, Öztopuz RÖ, Büyük B, Ovali MA, Aykora D, Malçok ÜA. Correction to: Neuroprotective Effects of Piceatannol on Olfactory Bulb Injury after Subarachnoid Hemorrhage. Mol Neurobiol 2023; 60:3707. [PMID: 37086343 DOI: 10.1007/s12035-023-03356-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Affiliation(s)
- Ali Akar
- Faculty of Medicine, Department of Neurosurgery, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Rahime Özlem Öztopuz
- Faculty of Medicine, Department of Biophysics, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Başak Büyük
- Faculty of Medicine, Department of Histology and Embryology, İzmir Democracy University, İzmir, Turkey
| | - Mehmet Akif Ovali
- Faculty of Medicine, Department of Physiology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Damla Aykora
- Faculty of Medicine, Department of Physiology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Ümit Ali Malçok
- Faculty of Medicine, Department of Neurosurgery, Çanakkale Onsekiz Mart University, Çanakkale, Turkey.
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Akar A, Öztopuz RÖ, Büyük B, Ovali MA, Aykora D, Malçok ÜA. Neuroprotective Effects of Piceatannol on Olfactory Bulb Injury after Subarachnoid Hemorrhage. Mol Neurobiol 2023; 60:3695-3706. [PMID: 36933146 DOI: 10.1007/s12035-023-03306-x] [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: 11/11/2022] [Accepted: 03/08/2023] [Indexed: 03/19/2023]
Abstract
Subarachnoid hemorrhage (SAH) accounts for 5% of all stroke cases and is responsible for significant permanent brain and neurological damage within the first few days. Loss of smell is one of those neurological disorders following olfactory bulb injury after SAH. Olfaction plays a critical role in several aspects of life. The primary underlying mechanism of olfactory bulb (OB) injury and loss of smell after SAH remains unknown. Piceatannol (PIC), a natural stilbene, possesses anti-inflammatory and anti-apoptotic effects against various diseases. In this study, we aimed to investigate the potential therapeutic effects of PIC on OB injury following SAH at molecular mechanism based on SIRT1, inflammatory (TNF-α, IL1-β, NF-κB, IL-6, TLR4), and apoptosis (p53, Bax, Bcl-2, caspase-3)-related gene expression markers and histopathology level; 27 male Wistar Albino rats were used in a pre-chiasmatic subarachnoid hemorrhage model. Animals were divided into groups (n = 9): SHAM, SAH, and PIC. Garcia's neurological examination, brain water content, RT-PCR, histopathology, and TUNEL analyses were performed in all experimental groups with OB samples. Our results indicated that PIC administration significantly suppressed inflammatory molecules (TNF-α, IL-6, IL1-β, TLR4, NF-κB, SIRT1) and apoptotic molecules (caspase-3, p53, Bax). We also evaluated edema levels and cell damage in OB injury after SAH. Ameliorative effects of PIC are also observed at the histopathology level. Garcia's neurological score test performed a neurological assessment. This study is the first to demonstrate the neuroprotective effects of PIC on OB injury after SAH. It suggests that PIC would be a potential therapeutic agent for alleviating OB injury after SAH.
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Affiliation(s)
- Ali Akar
- Faculty of Medicine, Department of Neurosurgery, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Rahime Özlem Öztopuz
- Faculty of Medicine, Department of Biophysics, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Başak Büyük
- Faculty of Medicine, Department of Histology and Embryology, İzmir Democracy University, İzmir, Turkey
| | - Mehmet Akif Ovali
- Faculty of Medicine, Department of Physiology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Damla Aykora
- Faculty of Medicine, Department of Physiology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Ümit Ali Malçok
- Faculty of Medicine, Department of Neurosurgery, Çanakkale Onsekiz Mart University, Çanakkale, Turkey.
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Büyük B, Adali Y, Karakoç E, Eroğlu HA, Aydeğer C. The effects of thiopental on cold ischemic injury in renal transplantation. Folia Med (Plovdiv) 2023; 65:30-36. [PMID: 36855971 DOI: 10.3897/folmed.65.e71368] [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: 07/09/2021] [Accepted: 01/04/2022] [Indexed: 03/02/2023] Open
Abstract
INTRODUCTION One of the most important factors influencing post-transplant success in kidney transplantation is preserving the viability of the organ from removal to transfer into the recipient. AIM This study aimed to reduce the energy requirement with thiopental doses administered before organ transplantation, and to increase the organ viability by minimizing the tissue damage during the cold ischemia process. MATERIALS AND METHODS Twenty female Wistar albino rats were divided into two groups: control group (group C), and thiopental group (group T). In group C, a midline incision was performed, and the renal artery was isolated under ketamine and xylazine anesthesia. A standard organ storage solution (cooled to +4°C) was used for kidney perfusion. Nephrectomy was applied, and the removed kidneys were placed into +4°C standard organ storage solution and stored at +4°C for 12 hours. Animals in group T were subjected to the procedures explained above under 85 mg/kg thiopental sodium anesthesia. After 12-hour storage, samples from the kidney tissues were fixed in 10% neutral buffered formalin. Histopathological evaluation and apoptosis detection via TUNEL method were performed. RESULTS Tubular necrosis was more extensive in group C compared with that in group T and this difference was statistically significant. Similarly, vacuolization was widely observed in group C, and this increase was also statistically significant. For the 'dilatation of Bowman's space' parameter, a significant decrease was observed in group T compared with group C. When the apoptotic index values of both groups were examined, it was seen that they were lower in group T than those in group C. This result was statistically significant. CONCLUSIONS These data suggest that thiopental provides protection to the kidney tissue during the cold storage process. Thiopental has been shown to decrease the number of apoptotic cells in the kidney tissue when administered to the donor before organ transplantation, increasing the organ viability.
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Affiliation(s)
| | | | | | | | - Cemre Aydeğer
- Çanakkale Onsekiz Mart University Hospital, Çanakkale, Turkiye
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Büyük B, Aydeğer C, Öztopuz Ö, Ovalı MA, Makav M, Eroğlu HA. Effects of Ozone Therapy on Chronic Arsenic Poisoning in Rats. Biol Trace Elem Res 2022:10.1007/s12011-022-03486-y. [PMID: 36437433 DOI: 10.1007/s12011-022-03486-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/08/2022] [Indexed: 11/29/2022]
Abstract
Arsenic (As) is a toxic metalloid that affects many organs through drinking water. This study aims to examine the efficacy of ozone therapy on chronic arsenic toxicity. Twenty-four male Wistar albino rats were housed in individual cages and grouped as control, As, O3, and As + O3. As was applied by adding 5 mg/kg/day in drinking water for 60 days. Ozone therapy was applied at 0.5 mg/kg/day (i.p.) O3 in the last 5 days of the experimental period. Tissues were harvested and analyzed for histopathological injury and apoptotic markers. There was no significant difference between the As + O3 and O3 groups (p = 0.186 and p = 0.599) for light microscopic criteria: inflammatory cell infiltration and hydropic degeneration in liver tissue.In TUNEL assessments, similar outcomes were obtained in the control and As + O3 groups. A statistically significant increase was observed in p53 and Caspase 3 (Casp-3) expression levels in the As group compared to the O3 and As + O3 groups. There was no significant difference between the As + O3 and O3 groups on peritubular hemorrhage and desquamation parameters in kidneys (p = 0.147 and p = 0.094). The KIM-1 expression level was significantly increased in the As group compared to the As + O3 group (p = 0.01), and the Casp-3 expression level was not significantly changed in the O3 group compared to the As + O3 group (p = 0.59). In conclusion, it is determined that ozone therapy has ameliorative effects on the microscopic injury of liver and kidney tissues. In addition to microscopic improvement, KIM-1 gene expression levels were ameliorated in the kidneys. The apoptotic cell counts and the Casp-3 and p53 gene expression levels were decreased by O3 administration. Thus, ozone therapy can be a treatment choice for As toxicity.
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Affiliation(s)
- Başak Büyük
- Department of Histology and Embryology, Faculty of Medicine, İzmir Democracy University, İzmir, Turkey
| | - Cemre Aydeğer
- Department of Physiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Terzioğlu Campus, Çanakkale, 17100, Turkey
| | - Özlem Öztopuz
- Department of Biophysics, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Mehmet Akif Ovalı
- Department of Physiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Terzioğlu Campus, Çanakkale, 17100, Turkey
| | - Mustafa Makav
- Department of Physiology, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey
| | - Hüseyin Avni Eroğlu
- Department of Physiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Terzioğlu Campus, Çanakkale, 17100, Turkey.
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Eroğlu HA, Büyük B, Öztopuz Ö, Makav M, Aydeğer C. Effects of hyperbaric oxygen treatment on liver and kidney tissue in chronic arsenic toxicity. Undersea Hyperb Med 2022; 49:467-477. [PMID: 36446292 DOI: 10.22462/07.08.2022.6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Arsenic (As) is a toxic substance that damages the human body through exposure to drinking water. This exposure damages many organs and tissues in the body, especially the liver and kidneys. Hyperbaric oxygen (HBO2) therapy is a treatment method that acts by reducing oxidative stress parameters in tissues with high-pressure oxygen. Based on this, our study aimed to investigate the effectiveness of HBO2 on liver and kidney tissues with chronic arsenic toxicity. In the study 24 male Wistar albino rats (220-300 g, two to three months old) were equally divided into four groups: Control; As; HBO2; and As+HBO2. All animals were housed in individual cages. The toxicity model was created by adding arsenic to drinking water at a dose of 5 mg/kg/day for 60 days. HBO2 was applied 2 ATA pressure for 90 minutes a day for five days. At the end of the study, liver and kidney tissues were taken and stored for analysis. In liver tissue, histopathological showed that arsenic reduced inflammatory cell infiltration, sinusoidal congestion, and hydropic degeneration, while HBO2 increased these measures. Similar results were found by TUNEL method. In kidney tissue, both histopathologic and TUNEL method examinations found similar results with the liver: The As group was more damaged than the As+HBO2 group.
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Affiliation(s)
- Hüseyin Avni Eroğlu
- Çanakkale, Onsekiz Mart University Faculty of Medicine, Department of Physiology, Çanakkale, Turkey
| | - Başak Büyük
- İzmir Democracy University Faculty of Medicine, Department of Histology and Embryology, İzmir, Turkey
| | - Özlem Öztopuz
- Çanakkale, Onsekiz Mart University Faculty of Medicine, Department of Biophysics, Çanakkale, Turkey
| | - Mustafa Makav
- Kafkas University Faculty of Veterinary Medicine, Department of Physiology, Kars, Turkey
| | - Cemre Aydeğer
- Çanakkale, Onsekiz Mart University Faculty of Medicine, Department of Physiology, Çanakkale, Turkey
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Büyük B, Aydeğer C, Adalı Y, Eroğlu HA. The Effect of Topically Applied Boric Acid on Ephrin-Eph Pathway in Wound Treatment: An Experimental Study. INT J LOW EXTR WOUND 2021:15347346211055260. [PMID: 34775861 DOI: 10.1177/15347346211055260] [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: 11/17/2022]
Abstract
Background: Wound healing has a vital importance for the organism and various agents are used to accelerate wound healing. Although the effect of boron on wound healing is known, its mechanisms are not completely clear yet. In this study, the effect of boron in the Ephrin /Eph pathway will be evaluated. Methods: Forty adult female rats were used in the study. A full-thickness excisional wound model was created in all groups divided as Control, Fito, Boron and Plu groups. After the applications performed twice a day and lasting 7 days, skin tissues obtained and evaluated histopathological (inflammatory cell infiltration, oedema, and fibroblast proliferation density) and immunohistochemical (TNF-α, EphrinA1, EphrinB1, EphrinB2 and EphB4). Results: Inflammatory cell infiltration score was found to be higher in the Fito group compared to Boron group (p = .018). Fibroblast proliferation density was higher in Plu group than Boron group (p = .012). While TNF-α was lower in boron group than Plu (p = .027) and Fito (p = .016) groups, EphrinA1 was higher in Boron group than Plu group (p = .005). EphrinB1 expression was higher in Boron group compared to Plu (p = .015) and Fito (p = .015) groups, and the same difference was also observed in EphrinB2 (p values .000). Similarly, EphB4 immunoreactivity was higher in the Boron group compared to Plu (p = .000) and Fito (p = .002). Conclusion: One of the mechanisms of action of boron in wound healing is to increase EphrinB1, EphrinB2 and EphB4. Low TNF-α and histopathological findings indicate that boron limits extensive wound healing.
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Affiliation(s)
- Başak Büyük
- 496533İzmir Democracy University , İzmir, Turkey
| | - Cemre Aydeğer
- 52950Çanakkale Onsekiz Mart University , Çanakkale, Turkey
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Büyük B. Comment on "Comparison of tru-cut biopsy and fine-needle aspiration cytology in an experimental alcoholic liver disease model". ACTA ACUST UNITED AC 2021; 66:1609. [PMID: 33295418 DOI: 10.1590/1806-9282.66.11.1609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/11/2020] [Indexed: 11/22/2022]
Affiliation(s)
- Başak Büyük
- Department of Histology-Embryology, Faculty of Medicine, İzmir Democracy University, İzmir, Turkey
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Oğuz S, Aşgün HF, Büyük B. Effectiveness of Brain Protection With Histidine-Tryptophan-Ketoglutarate Solutions. Heart Surg Forum 2020; 23:E510-E516. [PMID: 32726201 DOI: 10.1532/hsf.3103] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 06/18/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Tissue-protective solutions increase resistance of cells to ischemic conditions. Especially in carotid and aortic arch surgeries where the brain perfusion is at risk, these solutions may be beneficial to prevent ischemic brain damage. This study was designed to demonstrate the effectiveness of histidine-tryptophan-ketoglutarate (HTK) solution in increasing resistance of brain tissue to ischemic conditions. METHODS Three separate randomized groups were created, each consisting of eight rabbits. The groups were called the ischemia, HTK and sham groups, respectively. In the ischemia group, temporary brain ischemia was created for 15 minutes by placing clamps on the bilateral subclavian and common carotid arteries. Then the clamps were removed, and the brain was reperfused for 30 minutes. In the HTK group, HTK solution was sent to the brain through the internal carotid artery before the same ischemia-reperfusion protocol was applied. Histopathological analyses using a visual scoring system to assess the degree of ischemic changes and the apoptotic cell index by TUNEL test were performed in all brain tissue samples. RESULTS Apoptotic cell indices of the HTK (20.6%) and sham (17.8%) groups were lower than the ischemia group (56.8%) (P < .05). Statistically significant differences were detected between all groups in categorical scores (P < .05). CONCLUSIONS It was shown that less ischemic damage occurs in the brain tissue with the use of HTK solution, and it may be a candidate approach to prevent the brain from ischemic insults during cerebrovascular surgery. Further studies are required to demonstrate its exact effectiveness, in terms of dose, duration, and temperature.
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Affiliation(s)
- Sonay Oğuz
- Department of Cardiovascular Surgery, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey.
| | - Halil F Aşgün
- Department of Cardiovascular Surgery, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey.
| | - Başak Büyük
- Department of Histology and Embryology, Faculty of Medicine, İzmir Democracy University, İzmir, Turkey.
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Abstract
Background Bypass graft surgery remains to be an important treatment option for left main and multivessel coronary artery disease. Approximately 2% of saphenous vein grafts are lost immediately after the coronary artery bypass graft operations and 12% in the first month due to thrombosis. Aims To administer one anticoagulant and two antiplatelet agents in a way that locally affects the vein graft before the bypass operation and to thereby analyse their effects on early graft thrombosis. Study Design Animal experimentation. Methods Since ticagrelor was used locally for the first time in this study, its efficacy in combination with other drugs (acetylsalicylic acid, acetylsalicylic acid and ticagrelor, and acetylsalicylic acid + ticagrelor + unfractionated heparin) was examined on rats including control (untreated) and sham (pluronic gel) group (n=14 for each group). Before the tunica adventitia layer of the femoral veins was bypassed to the femoral artery, it was coated with the drug-eluting pluronic F-127 gel. The presence or absence of thrombus in the vein graft samples was recorded under light microscopy. In vein graft preparations where thrombus was detected, the thrombus area (μm2) was calculated using the Axiovision software. Immunohistochemical staining was performed with the anti-rat von Willebrand factor polyclonal antibody kit. Results The number of preparations containing thrombus was significantly lower in the acetylsalicylic acid + ticagrelor + unfractionated heparin group than in the acetylsalicylic acid, control, and sham groups, according to the comparisons made on the 1st and 3rd days (p=0.001 and 0.02, respectively). von Willebrand factor staining was significantly lower in the acetylsalicylic acid + ticagrelor + unfractionated heparin group than in the other groups on the 3rd day (p=0.005). Conclusion Locally effective acetylsalicylic acid-ticagrelor-unfractionated heparin complex has been shown to significantly reduce thrombus formation in vein grafts in this experimental model. Local administration of these drugs, which are routinely administered orally just before stent implantations, on the vein graft before the bypass is performed can prevent the loss of vein grafts due to thrombus, thereby reducing the mortality and morbidity of these patients.
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Affiliation(s)
- Ercan Akşit
- Department of Cardiology, Çanakkale Onsekiz Mart University School of Medicine, Çanakkale, Turkey
| | - Tolga Kurt
- Department of Cardiovascular Surgery, Çanakkale Onsekiz Mart University School of Medicine, Çanakkale, Turkey
| | - Başak Büyük
- Department of Histology and Embryology, İzmir Demokrasi University School of Medicine, İzmir, Turkey
| | - Ömer Çokkalender
- Clinic of Cardiovascular Surgery, 25 Aralık State Hospital, Gaziantep, Turkey
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Akşit E, Kurt T, Büyük B, Çokkalender Ö. Drug Eluting Vein Graft with Acetylsalicylic Acid–ticagrelor–unfractionated Heparin Complex Inhibits Early Graft Thrombosis. Balkan Med J 2020. [DOI: 10.4274/balkanmedj.galenos.2020.2019.1.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Abstract
Introduction In chronic venous insufficiency (CVI), an increase in venous pressure causes the passage of intravascular blood cells and molecules into the surrounding tissues and induces histopathological changes in the lower extremities, leading to increased pigmentation in the legs, ulceration, and tissue loss to various degrees. This study aimed to investigate whether an increase in venous pressure in the coronary veins can lead to the aforementioned histopathological changes. Material and methods Twenty-four New Zealand rabbits were divided into the following three groups: experimental model of coronary venous hypertension (CVH) (n = 8), sham group (n = 8), and control group (n = 8). After 21 days postoperatively, tissue samples from each group were compared for perivascular inflammation, erythrocyte extravasation, macrophage infiltration, and hemosiderin deposits by histopathological scoring under a light microscope. Matrix metalloproteinase-2 (MMP-2) activation was evaluated using immunohistochemical staining. Results In the CVH group, hemosiderin accumulation was significantly higher than in the sham and control groups (1.0 (1.0-3.0), 0.0 (0.0-1.0), 0.0 (0.0-0.0); p < 0.001). Immunohistochemically, in the CVH group, MMP-2 levels were significantly higher than in the sham and control groups (2.0 (1.0-3.0), 0.0 (0.0-1.0), 0.0 (0.0-0.0); p < 0.001). Conclusions This experimental study showed for the first time the histopathological and immunohistochemical changes in myocardial tissue, similar to those observed in CVI, as a result of increased coronary venous pressure due to coronary vein ligation. Further studies are needed to understand the clinical implications of these results.
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Affiliation(s)
- Ercan Akşit
- Department of Cardiology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Başak Büyük
- Department of Histology and Embryology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Sonay Oğuz
- Department of Cardiovascular Surgery, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
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Büyük B, Demirci T, Adalı Y, Eroğlu HA. A new organ preservation solution for static cold storage of the liver. Amniotic fluid. Acta Cir Bras 2019; 34:e201900402. [PMID: 31038582 PMCID: PMC6583942 DOI: 10.1590/s0102-865020190040000002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 03/11/2019] [Indexed: 12/15/2022] Open
Abstract
Purpose: To evaluate the effect of amniotic fluid in liver preservation in organ transplantation, and compare it with standard preservation solutions. Methods: The groups consisted of Group 1: Ringer Lactate (RL) group, Group 2: HTK group, Group 3: UW group, Group 4: AF group. The livers of rats from Group 1, 2, 3, and 4 were perfused and placed into falcon tubes containing RL, HTK, UW, and AF solutions at +4°C, respectively. The tubes were stored for 12 hours in the refrigerator at +4°C. Tissue samples were taken at the 6th and 12th hours for histopathological examinations of the perfused livers, and storage solutions for biochemical analyzes at 6th and 12th hours. Results: AF was shown to maintain organ viability by reducing the number of cells undergoing apoptosis. Histopathological changes such as sinusoidal dilatation, hydropic degeneration, and focal necrosis were found to be similar to the groups in which the standard organ preservation solutions were used. Additionally, the results of INOS, IL-10, and TNF-α,which were evaluated immunohistochemically, have been shown to be similar to the UW and HTK groups. Conclusions: AF provided conservation similar to UW and HTK in the 12-hour liver SCS process. The fact that apoptosis values are comparable to standard preservation solutions supports the success of AF in the cold storage of the liver.
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Affiliation(s)
- Başak Büyük
- Assistant Professor, Department of Histology-Embryology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Turkey. Conception and design of the study; acquisition, analysis and interpretation of data; histopathological examinations; manuscript writing
| | - Tuba Demirci
- Assistant Professor, Department of Histology and Embryology, Faculty of Medicine, Ataturk University, Turkey. Scientific and intellectual content of the study
| | - Yasemen Adalı
- Assistant Professor, Department of Pathology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Turkey. Histopathological examinations, statistics analysis
| | - Hüseyin Avni Eroğlu
- Assistant Professor, Department of Physiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Turkey. Scientific and intellectual content of the study, manuscript preparation
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Büyük B, Beyazıt F. The efficacy of Ankaferd Blood Stopper ® in an experimental Asherman syndrome model created in rats. Turk J Obstet Gynecol 2019; 16:7-14. [PMID: 31019834 PMCID: PMC6463422 DOI: 10.4274/tjod.galenos.2018.21298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 02/24/2018] [Accepted: 11/24/2018] [Indexed: 12/01/2022] Open
Abstract
Objective Asherman syndrome (AS) is a progressive disease involving menstrual disorders, recurrent pregnancy losses, and infertility developing as a result of partial or full blockade of the uterine cavity with adhesions. AS generally develops after trauma to the basal layer of the endometrium. In spite of a variety of methods such as adhesiolysis, inserting intrauterine devices, and administering high doses of estrogen, treatments remain insufficient. This study aimed to assess the effects of local intrauterine Ankaferd Blood Stopper (ABS) administration in inducing endometrial proliferation and building a normal endometrial layer in a rat model. Materials and Methods AS was induced in 30 female Wistar albino rats. The rats were randomized into three groups:Group 1: AS groupGroup 2: AS + serum physiologic (SP) groupGroup 3: AS + ABS groupAS model was induced in all animals. The uterine horns were harvested after 15 days of therapy and investigated for inflammation, fibrosis, and immunohistochemical (IHC) markers. Results Compared with the other groups, fibrosis, and inflammation were significantly reduced in group 3 (chi-square, p=19.000, 0.001 and 26.365, <0.001, respectively). The IHC assessment showed that the tumor necrosis factor-α receptor levels were not different (Kruskal-Wallis H=0.091, p=0.995), but the interleukin (IL)-1β and IL-6 expression was reduced significantly in group 3 (H, p=18.706, <0.001, and 22.114, <0.001, respectively). Conclusion The therapeutic effects of local administration of ABS in rats with AS model were demonstrated histopathologically and immunohistochemically. Based on these results, ABS administration in addition to the current treatments for AS may increase the treatment success and reduce the need for advanced treatment.
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Affiliation(s)
- Başak Büyük
- Çanakkale Onsekiz Mart University Faculty of Medicine, Department of Histology and Embryology, Çanakkale, Turkey
| | - Fatma Beyazıt
- Çanakkale Onsekiz Mart University Faculty of Medicine, Department of Gynecology and Obstetrics, Çanakkale, Turkey
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Büyük B. A new nonsurgical experimental model for Asherman syndrome created in rats. ARCHIVES OF CLINICAL AND EXPERIMENTAL MEDICINE 2018. [DOI: 10.25000/acem.434883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Beyazit F, Büyük B, Turkon H, Elmas S, Uzun M. Adalimumab mitigates ovarian ischemia-reperfusion injury in rats by regulating oxidative stress, apoptosis and resolution of inflammation. J Obstet Gynaecol Res 2018; 45:358-367. [PMID: 30358007 DOI: 10.1111/jog.13846] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 05/16/2018] [Accepted: 10/02/2018] [Indexed: 02/06/2023]
Abstract
AIM Ovarian torsion is a rare but an important reason of acute lower abdominal pain in women and associated with serious morbidity and mortality, if not treated promptly. The aim of this study was to evaluate the effects of an antitumor necrosis factor-α antibody on ovarian torsion in a rat model of ischemia-reperfusion (I/R) injury. METHODS Forty female Wistar Albino rats were used in the present study. The rats were randomly divided into four groups: group I (sham), group II (I/R), group III (I/R + isotonic saline) and group IV (I/R + adalimumab). The I/R model was induced by torsion of both ovaries. Immunohistochemical staining for interleukin-1β (IL-1β), nuclear factor-κB (NF-κB), and inducible nitric oxide synthase was performed. Tissue and serum oxidative stress markers in conjunction with apoptotic index (AI) with the terminal deoxynucleotidyl transferase dUTP nick end labeling method were also calculated. RESULTS Tissue total oxidant status, oxidative stress index and nitric oxide values were significantly decreased, and tissue total antioxidant status was found to be increased in group IV. Inflammation, vascular congestion and hemorrhagia were significantly lower in adalimumab-treated group. Serum oxidative stress markers and tissue malondialdehyde levels did not differ in study groups. The AI was significantly increased in groups 2 and 3. Adalimumab treatment significantly decreased the AI. CONCLUSION Adalimumab therapy in rats attenuated I/R induced ovarian injury, possibly suppressing inflammation, inhibiting oxidative stress, and altering apoptotic pathways.
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Affiliation(s)
- Fatma Beyazit
- Department of Obstetrics and Gynecology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Başak Büyük
- Department of Histology and Embryology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Hakan Turkon
- Department of Biochemistry, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Sait Elmas
- Experimental Research Application and Research Center, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Metehan Uzun
- Department of Physiology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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Büyük B, Yüncü M, Eralp A, İnalöz demir S. Gebe sıçanlarda kantaron otunun fetüse etkisi. FAMILY PRACTICE AND PALLIATIVE CARE 2018. [DOI: 10.22391/fppc.406844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Altınsoy N, Tuğrul A, Baytaş F, Baydoğan N, Karatepe N, Hacıyakupoğlu S, Büyük B. Investigation of helical flow by using tracer technique. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20135001001] [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: 11/14/2022] Open
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