1
|
Erdogan MA, Turk M, Doganay GD, Sever IH, Ozkul B, Sogut I, Eroglu E, Uyanikgil Y, Erbas O. Prenatal SARS-CoV-2 Spike Protein Exposure Induces Autism-Like Neurobehavioral Changes in Male Neonatal Rats. J Neuroimmune Pharmacol 2023; 18:573-591. [PMID: 37889404 DOI: 10.1007/s11481-023-10089-4] [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: 05/28/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
Recent research on placental, embryo, and brain organoids suggests that the COVID-19 virus may potentially affect embryonic organs, including the brain. Given the established link between SARS-CoV-2 spike protein and neuroinflammation, we sought to investigate the effects of exposure to this protein during pregnancy. We divided pregnant rats into three groups: Group 1 received a 1 ml/kg saline solution, Group 2 received 150 μg/kg adjuvant aluminum hydroxide (AAH), and Group 3 received 40 μg/kg spike protein + 150 μg/kg AAH at 10 and 14 days of gestation. On postnatal day 21 (P21), we randomly separated 60 littermates (10 male-female) into control, AAH-exposed, and spike protein-exposed groups. At P50, we conducted behavioral analyses on these mature animals and performed MR spectroscopy. Subsequently, all animals were sacrificed, and their brains were subject to biochemical and histological analysis. Our findings indicate that male rats exposed to the spike protein displayed a higher rate of impaired performance on behavioral studies, including the three-chamber social test, passive avoidance learning analysis, open field test, rotarod test, and novelty-induced cultivation behavior, indicative of autistic symptoms. Exposure to the spike protein (male) induced gliosis and neuronal cell death in the CA1-CA3 regions of the hippocampus and cerebellum. The spike protein-exposed male rats exhibited significantly greater levels of malondialdehyde (MDA), tumor necrosis factor alpha (TNF-α), interleukin-17 (IL-17), nuclear factor kappa B (NF-κB), and lactate and lower levels of brain-derived neurotrophic factor (BDNF) than the control group. Our study suggests a potential association between prenatal exposure to COVID-19 spike protein and neurodevelopmental problems, such as ASD. These findings highlight the importance of further research into the potential effects of the COVID-19 virus on embryonic and fetal development and the potential long-term consequences for neurodevelopment.
Collapse
Affiliation(s)
- Mumin Alper Erdogan
- Faculty of Medicine, Department of Physiology, Izmir Katip Celebi University, Izmir, Turkey.
| | - Miray Turk
- Graduate School, Department of Molecular Biology-Genetics and Biotechnology, Istanbul Technical University, 34469, Istanbul, Turkey
| | - Gizem Dinler Doganay
- Graduate School, Department of Molecular Biology-Genetics and Biotechnology, Istanbul Technical University, 34469, Istanbul, Turkey
- Faculty of Science and Letters, Department of Molecular Biology and Genetics, Istanbul Technical University, 34469, Istanbul, Turkey
| | - Ibrahim Halil Sever
- Faculty of Medicine, Department of Radiology, Demiroğlu Bilim University, Istanbul, Turkey
| | - Bahattin Ozkul
- School of Medicine, Department of Radiology, Istanbul Atlas University, Istanbul, Turkey
| | - Ibrahim Sogut
- Faculty of Medicine, Department of Biochemistry, Demiroğlu Bilim University, Istanbul, Turkey
| | - Ebru Eroglu
- Faculty of Medicine, Department of Histology and Embryology, Ege University, Izmir, Turkey
| | - Yigit Uyanikgil
- Faculty of Medicine, Department of Histology and Embryology, Ege University, Izmir, Turkey
| | - Oytun Erbas
- Faculty of Medicine, Department of Physiology, Demiroğlu Bilim University, Istanbul, Turkey
| |
Collapse
|
2
|
Bagcioglu E, Solmaz V, Erbas O, Özkul B, Çakar B, Uyanikgil Y, Söğüt İ. Modafinil Improves Autism-like Behavior in Rats by Reducing Neuroinflammation. J Neuroimmune Pharmacol 2023; 18:9-23. [PMID: 37043086 DOI: 10.1007/s11481-023-10061-2] [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: 10/12/2022] [Accepted: 03/16/2023] [Indexed: 04/13/2023]
Abstract
To evaluate the ameliorating effect of Modafinil on neuroinflammation, behavioral, and histopathological alterations in rats induced by propionic acid (PPA). Thirty male Wistar rats were used in the study, divided into 3 groups of ten subjects. One group served as a control, the subjects in the other two were given 250 mg/kg/day of PPA by intraperitoneal injection over the course of 5 days to induce autism. The experimental design was as follows: Group 1: Normal control (orally-fed control, n = 10); Group 2 (PPA + saline, n = 10): PPA and 1 ml/kg/day % 0.9 NaCl saline via oral gavage; Group 3 (PPA + Modafinil, n = 10) PPA and 30 mg/kg/day Modafinil (Modiodal tablets 100 mg, Cephalon) via oral gavage. All of the groups were investigated for behavioral, biochemical, and histological abnormality. Autism-like behaviors were reduced significantly in the rats treated with PPA. TNF-α, Nerve Growth Factor (NGF), IL-17, IL-2, and NF-KB levels as well as MDA levels and lactate were significantly higher in those treated with PPA compared to the control group. Using immunohistochemical methods, the number of neurons and GFAP immunoreactivity was significantly altered in PPA-treated rats compared to the control. Using Magnetic Resonance Spectroscopy (MRS), we found that lactate levels were significantly higher in the PPA-treated rats, while creatinine levels were significantly decreased. In the rats administered with Modafinil, behavior, neuroinflammation, and histopathological changes brought about by PPA were significantly reversed. Our results demonstrate the potential role of Modafinil in ameliorating PPA-induced neuroinflammation in rats.
Collapse
Affiliation(s)
- Erman Bagcioglu
- Department of Clinical Psychology, Ruhr University, Bochum, Germany.
| | - Volkan Solmaz
- Department of Neurophysiology, Cologne University, Cologne, Germany
| | - Oytun Erbas
- Department of Physiology, Istanbul Bilim University School of Medicine, Istanbul, Turkey
| | - Bahattin Özkul
- Department of Radiology, Istanbul Atlas University, Istanbul, Turkey
| | - Burak Çakar
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - İbrahim Söğüt
- Department of Biochemistry, Demiroğlu Bilim University, Istanbul, Turkey
| |
Collapse
|
3
|
Turunc E, Uyanikgil Y, Temiz TK, Yalcin A. Prenatal Dexamethasone Exposure in Male Rats Alters Gene Expression Patterns of Epigenetic Enzymes in Hippocampus and Cortex. Eur J Ther 2022. [DOI: 10.5152/eurjther.2022.22056] [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: 11/22/2022]
|
4
|
Sever IH, Ozkul B, Erisik Tanriover D, Ozkul O, Elgormus CS, Gur SG, Sogut I, Uyanikgil Y, Cetin EO, Erbas O. Protective effect of oxytocin through its anti-inflammatory and antioxidant role in a model of sepsis-induced acute lung injury: Demonstrated by CT and histological findings. Exp Lung Res 2021; 47:426-435. [PMID: 34665057 DOI: 10.1080/01902148.2021.1992808] [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: 10/20/2022]
Abstract
Although several studies demonstrate the anti-inflammatory effect of oxytocin in different pathophysiological processes, there are limited data describing the impact of oxytocin on acute respiratory distress syndrome (ARDS). We aimed to elucidate the protective effect of oxytocin in ARDS with histopathological evaluation and radiological imaging in addition to biochemical markers. Fecal intraperitoneal injection procedure (FIP) was performed on 24 of 32 rats included in the study for creating a sepsis model. Rats were randomly assigned into four groups: control group (no procedure was applied, n = 8), untreated septic group [was operated (FIP) and received no treatment, n = 8], placebo group (FIP, treated with 10 ml/kg of saline at once, n = 8), and treated group (FIP, treated with 0.1 mg/kg of oxytocin at once, n = 8). Chest CT was performed for all rats 20 hours after the procedure and density of the lungs were measured manually by using HU. All animals were sacrificed for histopathological examination of lung damage and blood samples were collected for biochemical analysis. Plasma malondialdehyde (MDA), lactic acid (LA), C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), interleukin 1-beta (IL 1-β) levels were significantly increased in the placebo (FIP + saline) and the untreated (FIP) groups, and plasma levels of all biomarkers were reversed by oxytocin. Further, the density of the lung parenchyma (Hounsfield unit) on CT images and the histopathological lung damage score values were closer to the control group in the oxytocin-treated group compared to the placebo group. Our findings suggested that oxytocin could exert anti-inflammatory, antioxidant and protective effects in FIP-induced ARDS.
Collapse
Affiliation(s)
- I H Sever
- Department of Radiology, Demiroğlu Bilim University, Istanbul, Turkey
| | - B Ozkul
- Department of Radiology, Istanbul Atlas University, Istanbul, Turkey
| | - D Erisik Tanriover
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey
| | - O Ozkul
- Medical Oncology, Bagcilar Research and Training Hospital, Istanbul, Turkey
| | - C S Elgormus
- Department of Emergency Medicine, Istanbul Atlas University, Istanbul, Turkey
| | - S G Gur
- Department of Radiology, Demiroğlu Bilim University, Istanbul, Turkey
| | - I Sogut
- Department of Biochemistry, Demiroğlu Bilim University, Istanbul, Turkey
| | - Y Uyanikgil
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey
| | - E O Cetin
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - O Erbas
- Department of Physiology, Demiroğlu Bilim University, Istanbul, Turkey
| |
Collapse
|
5
|
Bicer A, Ercin BS, Gürler T, Yiğittürk G, Uyanikgil Y, Cetin EO. Possibility of Taking an Offensive Stance in Extravasation Injury: Effects of Fat Injection in Vesicant (Doxorubicin) Induced Skin Necrosis Model in Rats. J INVEST SURG 2021; 35:801-808. [PMID: 34402353 DOI: 10.1080/08941939.2021.1966142] [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: 10/20/2022]
Abstract
INTRODUCTION Extravasation injuries are one of the most feared complications of intravenous drug administration. The most common drugs associated with extravasation injury include chemotherapy agents and contrast media. Natural course of vesicant extravasation is discomfort, pain, swelling, inflammation, and ultimately skin ulceration. While diligence is the principle approach in prevention, immediate bed-side measures are as important in controlling the extent of tissue damage. Various options, either medical or interventional are next steps in treatment of the condition including antidotes, volume dilution, flushing, suction, hyperbaric oxygen therapy, and surgery. MATERIALS AND METHODS 12 male Wistar albino rats were divided into two groups; one group received fat injections following subdermal doxorubicin infiltration in their right thighs, while other group received saline injection following subdermal doxorubicin infiltration in their right thighs for dilution. Left thighs of both groups were left untreated following subdermal doxorubicin infiltration. Total area of necrosis, as well as resultant epidermal thicknesses were assessed. Histological analyses were conducted using modified Verhofstad scoring system for comparison. RESULTS Mean necrotic area was significantly smaller in the fat injection group compared to other groups. Median Verhofstad score was lesser in the fat injection group as well. Median epidermal thickness, on the other hand, was greater in the fat injection group. CONCLUSION Injection of fat grafts following vesicant extravasation might be beneficial in preventing the progression of tissue damage, if employed early.
Collapse
Affiliation(s)
- Ahmet Bicer
- Department of Plastic Surgery, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Burak Sercan Ercin
- Department of Plastic, Reconstructive and Aesthetic surgery, Bahcesehir University, Istanbul, Turkey.,Department of Plastic, Reconstructive and Aesthetic surgery, Medicalpark Pendik Hospital, Istanbul, Turkey
| | - Tahir Gürler
- Department of Plastic Surgery, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Gürkan Yiğittürk
- Department of Histology and Embryology, Faculty of Medicine, Mugla Sitki Kocman University, Mugla, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey.,Department of Stem Cell, Ege University, Health Science Institue, Izmir, Turkey.,Cord Blood, Cell and Tissue Research and Application Centre, Ege University, Izmir, Turkey
| | - Emel Oyku Cetin
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, Izmir, Turkey
| |
Collapse
|
6
|
Turgut M, Karademir S, Başaoğlu HK, Tomruk C, Cetin EO, Uyanikgil Y, Cengiz A. Evaluation of the effects of Ankaferd hemostat application on bone regeneration in rats with calvarial defects: histochemical, immunohistochemical and scintigraphic study. Folia Morphol (Warsz) 2021; 81:739-748. [PMID: 34355787 DOI: 10.5603/fm.a2021.0074] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/09/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Bone wax, a hemostatic agent, is widely used in craniospinal surgical procedures for a long time, inspite of controversial results regarding its negative influence upon bone regeneration. In this experimental study, the effects of Ankaferd Blood Stopper (ABS), as an alternative hemostatic agent, were evaluated through histochemical, immunohistochemical and scintigraphic studies. MATERIALS AND METHODS The total of 30 adult female Wistar-Albino rats was randomly divided into three groups: intact control group (n=10), bone wax group (n=10), and ABS group (n=10). Surgically, a 3.0 mm hole in diameter was drilled on the right side of calvarium of the rats using a Class Mini Grinder set in all three groups, as described previously. At the end of 8 weeks, bone healing and connective tissue alterations surrounding drilled calvarial defect areas of the rats were determined via Hematoxylin and Eosin (H&E) and the Mallory's trichrome staining and anti-bone sialoprotein (BSP) immunohistochemistry. Image Pro Express 4.5 program was used for histomorphometric calculation of new bone and fibrotic tissue areas. All statistical analyzes were made with SPSS 25.0 and analysis of variance (one-way ANOVA) followed by Bonferroni post hoc test was performed, p<0.001 was considered as significance level. RESULTS Histomorphometrically, it was found that he had the largest hole diameter and the least fibrotic scar area in the bone-wax group. In the bone wax group, it was observed that the material closed the hole and there was only a fibrotic scar tissue in the area between the bone tissue at the edge of the hole and bone wax, and a fibrotic tissue was formed in the bone wax area. During the histological procedure, this bone-wax material was poured and the sections were seen as a gap in this area. In the ABS hemostat group, the smallest hole diameter and the least fibrotic scar tissue were observed. Fibrotic scar tissue close to each other was found in the ABS hemostat and bone wax groups. Histological analysis of samples also showed a statistical significance for fibrotic connective tissue area between groups (p <0.05). Scintigraphically, osteoblastic activity related to blood flow in the animal taken from the group with application of ABS hemostat was more pronounced compared to the other two groups. CONCLUSIONS In our study, it has been concluded that the ABS yields affirmative effects on the bone healing, while bone wax leads to negative impact on the bone regeneration. Scintigraphic, histochemical and immunohistochemical data support the affirmative impact of the ABS hemostat application upon the bone regeneration apart from the quick stop of hemorrhage.
Collapse
Affiliation(s)
- M Turgut
- Department of Neurosurgery, Aydın Adnan Menderes University Faculty of Medicine, 09010 Aydın,, Turkey.,Department of Histology and Embryology, Aydın Adnan Menderes University Health Sciences Institute, 09010 Aydın, Turkey
| | - S Karademir
- Department of Histology and Embryology, Aydın Adnan Menderes University Health Sciences Institute, 09010 Aydın, Turkey
| | - H K Başaoğlu
- Department of Histology and Embryology, Aydın Adnan Menderes University Health Sciences Institute, 09010 Aydın, Turkey.,Department of Histology and Embryology, Aydın Adnan Menderes University Faculty of Medicine, 09010 Efeler, Aydın, Turkey
| | - C Tomruk
- Department of Histology and Embryology, Ege University Faculty of Medicine, 35100 Bornova, İzmir, Turkey
| | - E O Cetin
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, EgeUniversity Faculty of Pharmacy, 35100 İzmir, Turkey.
| | - Y Uyanikgil
- Department of Histology and Embryology, Ege University Faculty of Medicine, 35100 Bornova, İzmir, Turkey.,Department of Stem Cell, Ege University, Health Science Institue, 35100 Bornova, Izmir, Turkey.,Cord Blood, Cell and Tissue Research and Application Centre, Ege University, 35100 Bornova, Izmir, Turkey
| | - A Cengiz
- Department of Nuclear Medicine, Aydın Adnan Menderes University Faculty of Medicine, 09010 Efeler, Aydın, Turkey
| |
Collapse
|
7
|
Basaloglu HK, Turgut M, Şirin C, Uyanikgil Y, Demirci B, Cetin EO. The influence of functional pinealectomy and exogenous melatonin application on healing of burr hole in adult rat calvaria: a histological and immunohistochemical study. Folia Morphol (Warsz) 2021; 81:271-279. [PMID: 33997947 DOI: 10.5603/fm.a2021.0047] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Even today, repair of the cranial defects still represents a significant challenge in neurosurgery and various options have been used for their reconstruction to date. but there are very few studies investigating the effects of exogenous administration of melatonin (MEL) as an agent that promotes bone regeneration. The goal of this study was to investigate the effects of functional pinealectomy (Px) and exogenous MEL administration on the bone repair properties and surrounding connective tissue alterations in a rat calvaria model. MATERIALS AND METHODS The total of 30 adult female Wistar-Albino rats was randomly divided into three groups (n = 10): control (CO) group (12 h light/12 h dark exposure), functional Px group (24 h light exposure, light-induced functional Px), and Px+MEL group (light-induced Px plus MEL, 20 mg/kg/day for 12 weeks). Critical-sized burr-hole defects (diameter = 3.0 mm) were surgically created by a single operator in the calvarium of all rats, using an electric drill. Animals in Px+MEL group received MEL 20 mg/kg/day for 12 weeks. At the end of the study, bone healing and connective tissue alterations surrounding drilled defect area in the rat calvaria were determined in hematoxylin/eosin-stained and mallory azan slices applied in anti-bone sialoprotein (BSP). Image Pro Express 4.5 program was used for histomorphometric calculation of areas of new bone and fibrotic tissue. Normality control was performed by Shapiro Wilk test. Variance homogeneities were examined by Shapiro Wilk and Levene tests; Tukey HSD test was used as a post hoc method since there was no homogeneity problem. All hypothesis tests were performed at the 0.05 significance level. RESULTS Histological analysis showed that the bone repair process in the Px+MEL group was similar to that of the CO group, whereas the functional Px group showed a delay. Histomorphometrically, it was found that the Px group had the largest hole diameter and the most fibrotic scar area, although no binary statistical significance was found between the CO and Px+MEL groups (p=0.910). In terms of vascularization, it was observed that the most vascular structure was found in the Px+MEL group among the scar tissue and ossification areas, while the vascularization was the least in the Px group (p < 0.001). CONCLUSIONS Our findings revealed that bone repair process was impaired in functional Px group, but exogenous MEL replacement was able to restore this response. Thus, it is concluded that utilization of MEL may improve the bone repair in calvarial defects.
Collapse
Affiliation(s)
| | - M Turgut
- Department of Neurosurgery, Aydın Adnan Menderes University Faculty of Medicine, Aydın, Turkey
| | - C Şirin
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey,
| | - Y Uyanikgil
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey.,Department of Stem Cell, Ege University, Health Science Institue, Izmir, Turkey; Cord Blood, Cell and Tissue Research and Application Centre, Ege University, Izmir, Turkey
| | - B Demirci
- Department of Pharmacology, Aydın Adnan Menderes University Faculty of Medicine, Aydın, Turkey
| | - E O Cetin
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, EgeUniversity Faculty of Pharmacy, 35100 İzmir, Turkey.
| |
Collapse
|
8
|
Cetin EO, Salmanoglu DS, Ozden I, Ors-Kumoglu G, Akar S, Demirozer M, Karabey F, Kilic KD, Kirilmaz L, Uyanikgil Y, Sevimli-Gur C. Preparation of Ethanol Extract of Propolis Loaded Niosome Formulation and Evaluation of Effects on Different Cancer Cell Lines. Nutr Cancer 2021; 74:265-277. [PMID: 33590797 DOI: 10.1080/01635581.2021.1876889] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Propolis is a candidate for cancer treatment with its activity against different tumor cells and, has a wide spectrum of biological and pharmacological activities due to the diversity of its components. In this study, antitumorigenic activities of ethanol extract of propolis (EEP) and ethanol extract of propolis loaded niosome (PLN) were compared using 2D and 3D cell culture. Niosome formulations were prepared by thin film hydration technique. Cell viability of EEP and PLN was analyzed on MCF7, A549, MDA-MB-231, SK-MEL, SK-BR-3, DU145 and L-929 cell lines using MTT assay. L929, MCF7 and A549 cells were cultured using the 3D petri dish technique and their spherical forms were obtained after 142 h. After 24 h, PLN and EEP application, cell viability analysis was performed on 3D cultures with WST assay. As a result, niosome formulations containing EEP showed higher activity than ethanol extract of propolis in cancer cells. While a slow decrease was observed in cell viability in EEP treated cancer cells, it was observed that the percentage viability rates decreased in a shorter time in PLN treated cancer cells. Also, PLN can be used as an anticancer activity drug such as Doxorubicin, but this is not the case for EEP.
Collapse
Affiliation(s)
- Emel Oyku Cetin
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, İzmir, Turkey
| | - Derya Selcen Salmanoglu
- Department of Biomedical Technologies, Graduate Faculty of Natural and Applied Science, Ege University, İzmir, Turkey
| | - Ilknur Ozden
- Department of Biology, Science and Art Faculty, Kocaeli University, Kocaeli, Turkey
| | - Gizem Ors-Kumoglu
- Department of Bioengineering, Faculty of Engineering, Ege University, İzmir, Turkey
| | - Sibel Akar
- Department of Biotechnology, Graduate Faculty of Natural and Applied Science, Ege University, İzmir, Turkey
| | - Melis Demirozer
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, İzmir, Turkey
| | - Fatih Karabey
- Parkim Group Perfectionist Solutions by Creative Minds R&D Center, Informatics Valley, Dilovası Gebze/Kocaeli, Turkey
| | - Kubilay Dogan Kilic
- Department of Histology and Embryology, School of Medicine, Ege University, İzmir, Turkey
| | - Levent Kirilmaz
- Department of Pharmaceutical Technology, Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, Ege University, İzmir, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, School of Medicine, Ege University, İzmir, Turkey
| | - Canan Sevimli-Gur
- Department of Biology, Science and Art Faculty, Kocaeli University, Kocaeli, Turkey.,Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Izmir Katip Celebi University, Izmir, Turkey
| |
Collapse
|
9
|
Akbiyik A, Sari D, Ercan UK, Uyanikgil Y, Taşli H, Tomruk C, Usta YH. The antimicrobial and tissue healing efficacy of the atmospheric pressure cold plasma on grade III infected pressure ulcer: randomized controlled in vivo experiment. J Appl Microbiol 2021; 131:973-987. [PMID: 33354899 DOI: 10.1111/jam.14980] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/20/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022]
Abstract
AIM To evaluate the antimicrobial efficacy and wound healing effect of atmospheric pressure cold plasma (APCP) on an infected pressure ulcer (IPUs) model that was created on rats. METHODS A total of 18 rats was divided into APCP, silver sulfadiazine (AgS) and control groups to have six rats in each group. A third-grade pressure ulcer model was developed on the back of each of the rats, and pressure ulcers were infected by inoculation of multidrug resistance (MDR) Pseudomonas aeruginosa. A portable dielectric barrier discharge device was used to generate cold air plasma. APCP, AgS and saline treatments were carried out once a day for 14 days. The effectiveness of the treatment was evaluated on days 5, 10 and 15. Surface area, depth, pressure ulcer healing scale (PUSH) and microbiological examination were used for evaluation. RESULTS The results of this study showed that APCP was superior over AgS application and irrigation with saline by means of the reduction in surface area and depth of ulcers. Furthermore, PUSH score in plasma group was lower than other groups and histopathological examination showed a higher epithelization in APCP group. The average reductions of MDR P. aeruginosa for APCP, AgS and control groups were determined as 5·64 ± 1·87, 1·91 ± 0·90 and 1·22 ± 0·88 log10 CFU per gram tissue, respectively. CONCLUSION Atmospheric pressure cold plasma healed IPUs better than AgS. SIGNIFICANCE AND IMPACT OF THE STUDY Portable cold plasma devices could be a potential novel treatment modality for the patients who have IPUs.
Collapse
Affiliation(s)
- A Akbiyik
- Faculty of Health Sciences, Izmir Katip Celebi University, Çiğli İzmir, Turkey
| | - D Sari
- Department of Fundamentals of Nursing, Faculty of Nursing, Ege University, Izmir, Turkey
| | - U K Ercan
- Department of Biomedical Engineering, Faculty of Engineering, İzmir Katip Çelebi University, Çiğli/İzmir, Turkey
| | - Y Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - H Taşli
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - C Tomruk
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Y H Usta
- Department of Biomedical Engineering, Faculty of Engineering, İzmir Katip Çelebi University, Çiğli/İzmir, Turkey
| |
Collapse
|
10
|
Koken E, Oyar EO, Uyanikgil Y, Pazarlar BA, Bilister C, Aksun S, Yigitturk G, Koken EC. Exogenous follistatin administration ameliorates cisplatin-induced acute kidney injury through anti-inflammation and anti-apoptosis effects. BRATISL MED J 2021; 121:143-150. [DOI: 10.4149/bll_2020_020] [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: 11/08/2022]
|
11
|
Elbe H, Yigitturk G, Cavusoglu T, Uyanikgil Y, Ozturk F. Apoptotic effects of thymol, a novel monoterpene phenol, on different types of cancer. ACTA ACUST UNITED AC 2020; 121:122-128. [PMID: 32115964 DOI: 10.4149/bll_2020_016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Cancer is a major public health problem in many areas of the world. Many anticancer drugs in current clinical use have been isolated from plant species or are based on such substances. Thymol (5-methyl-2-isopropylphenol) is an oxygenated aromatic compound from monoterpene group. It is the main constituent of thyme essential oil and shows antioxidant, antiseptic and antiproliferative properties. The aim of this study is to determine the antiproliferative activity and apoptotic effect of thymol on prostate cancer (PC-3, DU145), breast cancer (MDA-MB-231), and lung cancer (KLN205) cell lines. METHODS The cancer cells were treated with different concentrations of thymol (100, 200, 400, 600, 800 µM) at 24 h, 48 h and 72 h. The cell viability was investigated by MTT assay and analysis of apoptosis was determined with annexin V assay. RESULTS The study showed the dose and time-dependent cytotoxic effect of thymol in PC-3, DU145, MDA-MB-231, and KLN205 cancer cell lines. Thymol significantly induced apoptosis in all groups in a dose-dependent manner. Statistical analysis showed a significant difference between thymol‑treated cell lines compared to the control (p < 0.001). CONCLUSION The data in the present study demonstrated that thymol has apoptotic and antiproliferative properties in lung, breast and prostate cancer cell lines. Thymol could serve as a potential therapeutic agent in the future (Fig. 5, Ref. 26).
Collapse
|
12
|
Celik S, Makay O, Yoruk MD, Bayzit Kocer I, Ozdemir M, Kilic KD, Tomruk C, Bilge O, Uyanikgil Y, Dionigi G. A surgical and anatomo-histological study on Transoral Endoscopic Thyroidectomy Vestibular Approach (TOETVA). Surg Endosc 2019; 34:1088-1102. [PMID: 31147826 DOI: 10.1007/s00464-019-06856-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 03/06/2019] [Accepted: 05/18/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The number of TOETVA surgeries has increased worldwide but the anatomical passage of trocars is not clearly defined. We aimed to define detailed surgical anatomical passage of the trocars in cadavers. The incisions in oral vestibule, anatomical pathways of trocars, affected mimetic muscles, neurovascular relations of trocars and histological correlation of surgical anatomy were investigated. METHODS Four cadavers and 6 six patient oral vestibules were used. The locations of optimised vestibular incisions were measured photogrammetrically. Initial steps of TOETVA surgery were performed on cadavers according to those optimal incisions. TOETVA preformed cadavers dissected to determine anatomical passages of the trocars. Afterwards, flap of lower lip and chin were zoned by software appropriate to the trocars routes. Histological analyses of the zones were made in correlation with dissections. RESULTS Mimetic muscles associated with median (MT) and lateral trocars (LT) are orbicularis oris, mentalis, depressor anguli oris, depressor labii inferioris and platysma muscles. Trocars affect mimetic muscles in the perioral, chin and submental regions in different ways. The risk of mental nerve injury by MT is low. LT pass through the DLI muscle. The transmission of LT to the subplatysmal plane in the submental regions can be in two different ways. The arterial injury risk is higher with LT than the MT. CONCLUSIONS The surgical anatomy of the perioral, chin and submental regions for the initial TOETVA steps has been defined. Detailed surgical anatomical passages of the MT and LT were determined. Anatomical pattern to reach subplatysmal plane are presented. Mimetic muscles effected by trocars were determined. Endocrine surgeons should know the anatomical passage of TOETVA trocars.
Collapse
Affiliation(s)
- Servet Celik
- Faculty of Medicine Department of Anatomy, Ege University, 35100, Bornova, Izmir, Turkey.
| | - Ozer Makay
- Faculty of Medicine Department of General Surgery, Ege University, 35100, Bornova, Izmir, Turkey
| | - Mustafa Deniz Yoruk
- Faculty of Medicine, Department of Anatomy, Mugla Sitki Kocman University, Kotekli Quarter, Marmaris Road Boulevard, No: 50, 48000, Mentese, Mugla, Turkey
| | - Ilke Bayzit Kocer
- Faculty of Medicine Department of Anatomy, Ege University, 35100, Bornova, Izmir, Turkey
| | - Murat Ozdemir
- Faculty of Medicine Department of General Surgery, Ege University, 35100, Bornova, Izmir, Turkey
| | - Kubilay Dogan Kilic
- Faculty of Medicine Department of Histology and Embryology, Ege University, 35100, Bornova, Izmir, Turkey
| | - Canberk Tomruk
- Faculty of Medicine Department of Histology and Embryology, Ege University, 35100, Bornova, Izmir, Turkey
| | - Okan Bilge
- Faculty of Medicine Department of Anatomy, Ege University, 35100, Bornova, Izmir, Turkey
| | - Yigit Uyanikgil
- Faculty of Medicine Department of Histology and Embryology, Ege University, 35100, Bornova, Izmir, Turkey.,Cord Blood, Cell and Tissue Research and Application Center, Ege University, 35100, Bornova, Izmir, Turkey
| | - Gianlorenzo Dionigi
- Division of Endocrine and Minimally Invasive Surgery, "G. Martino" University Hospital, Messina University, Sicily, Italy
| |
Collapse
|
13
|
Ercin BS, Bicer A, Yigitturk G, Cinar C, Cavusoglu T, Uyanikgil Y, Gurler T. Who needs extra time? Amniotic membrane wrapped pauci-suture model for rapid anastomoses . J Plast Surg Hand Surg 2019; 53:89-96. [PMID: 30654665 DOI: 10.1080/2000656x.2018.1550419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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] [Indexed: 10/27/2022]
Abstract
An ideal anastomosis method will obtain the highest post-anastomotic vessel patency and will repair the vessel anatomically with minimal thrombosis in an easier, faster and cheaper fashion. To achieve these goals an anastomosis model using an amniotic membrane is introduced. The study was performed on the femoral arteries of 22 Wistar Albino rats (11 control group, 11 experimental group). In the experiment group, the microvascular anastomosis was completed with three sutures and a patch of amniotic membrane which was wrapped around the anastomotic site. The conventional anastomosis technique with eight sutures was performed in the control group. The effects of the model on the patency and histological structure of the vessels were evaluated. As a result, normal patency was determined radiologically and macroscopically in all of the anastomoses. No thrombosis or aneurysm was detected in any of the anastomoses. In the angiographic study, vessel patency was detected in both the control and experimental groups. The average time to complete the arterial anastomosis was 18.14 (±2.84) and 10.39 (±2.45) minutes in the control and the experiment groups respectively. In the histological studies, anti-eNOS staining revealed that endothelin levels were significantly higher in the experimental group. This method describes a new anastomosis model in microvascular surgery with promising results that call for additional experimental studies and further clinical implementations. We believe that this experimental technique can be put into clinical practice as an alternative to the conventional microvascular anastomosis technique.
Collapse
Affiliation(s)
- Burak Sercan Ercin
- a Department of Plastic, Reconstructive and Aesthetic Surgery , Turkish Ministry of Health, Siirt Urban Hospital , Siirt , Turkey
| | - Ahmet Bicer
- b Faculty of Medicine, Department of Plastic, Reconstructive and Aesthetic Surgery , Ege University , Izmir , Turkey
| | - Gurkan Yigitturk
- c Faculty of Medicine, Department of Histology and Embryology , Mugla Sitki Kocman University , Mugla , Turkey
| | - Celal Cinar
- d Faculty of Medicine, Department of Radiology, Division of Interventional Radiology , Ege University , Izmir , Turkey
| | - Turker Cavusoglu
- e Faculty of Medicine, Department of Histology and Embryology , Ege University , Izmir , Turkey.,f Cord Blood, Cell And Tissue Research And Application Centre, Ege University , Izmir , Turkey
| | - Yigit Uyanikgil
- e Faculty of Medicine, Department of Histology and Embryology , Ege University , Izmir , Turkey.,f Cord Blood, Cell And Tissue Research And Application Centre, Ege University , Izmir , Turkey
| | - Tahir Gurler
- b Faculty of Medicine, Department of Plastic, Reconstructive and Aesthetic Surgery , Ege University , Izmir , Turkey
| |
Collapse
|
14
|
Erenoglu C, Tiftikcioglu Y, Uyanikgil Y, Cavusoglu T. Traction vasculogenesis: Experimental vessel elongation by traction in rat model. Turk J Plast Surg 2019. [DOI: 10.4103/tjps.tjps_55_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
15
|
Abstract
BACKGROUND The blood in the umbilical cord that provides the connection between mother and fetus during pregnancy is called cord blood. The blood of umbilical cord which is usually got rid of following birth, is a very rich stem cell source. OBJECTIVE Cord blood collection gives no harm to the mother and baby. Besides, its allogeneic and autologous usage, the most important disadvantage is that the number of cells is insufficient in adults. CONCLUSION Today, it is predominantly used for therapeutic purposes for many diseases. The aim of this review is giving a detailed information about groups of stem cells in cord blood and determining the point of clinical use.
Collapse
Affiliation(s)
- Turker Cavusoglu
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey.,Cord blood, Cell -Tissue Research and Application Center, Ege University, Izmir, Turkey
| | - Kubilay Dogan Kilic
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Gurkan Yigitturk
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Canberk Tomruk
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey
| | - Mehmet Turgut
- Department of Neurosurgery, Adnan Menderes University School of Medicine, Aydin, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Ege University School of Medicine, Izmir, Turkey.,Cord blood, Cell -Tissue Research and Application Center, Ege University, Izmir, Turkey
| |
Collapse
|
16
|
Sir G, Goker Bagca B, Yigitturk G, Cavusoglu T, Biray Avci C, Gunduz C, Uyanikgil Y. Antagonistic Effect of Oxytocin and Tacrolimus Combination on Adipose Tissue - Derived Mesenchymal Stem Cells: Antagonistic effect of oxytocin and tacrolimus. Biomed Pharmacother 2017; 97:1173-1181. [PMID: 29136956 DOI: 10.1016/j.biopha.2017.10.076] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/16/2017] [Accepted: 10/16/2017] [Indexed: 11/29/2022] Open
Abstract
Tacrolimus (FK506) is a chemotherapeutic agent, which uses calcineurin pathway via inhibiting the stimulation of T cells to prevent the formation of immune response in the recipient individual in organ transplants. FK506 is mainly metabolized in the liver by cytochrome P450 enzyme system and is known that it has high toxic effects on different cells. Mesenchymal stem cells (MSCs) have recently gained importance since their potential to be used in cellular therapy and tissue regeneration. In some clinical cases, MSCs are transferred into the patient after the organ transplantations in order to support the treatment. Because of their immunomodulatory actions and assistance to the regeneration, popularity of MSCs have been increasing recently. However, since immunosuppressive agents have a potential cytotoxic and apoptotic effect on MSCs, researches have attempted to use it as a combination with an agent that alleviates these effects. Oxytocin (OT) is primarily acting as a neuromodulator in humans and is a peptide hormone secreted by the pituitary gland of the neurohypophysis. OT has such effects on cells as to confer resistance against oxidative stress on cells and to increase the proliferation and help regeneration. Studies on the active substance of FK506 were aimed to investigate the cytotoxic effects on human adipose tissue derived MSCs. The purpose of this study was to determine the cytotoxic, apoptotic and morphological effects of FK506, an immunosuppressive agent, on adipose tissue - derived MSC (ADMSC) which has the potential to be used for immune suppression. In addition, it was aimed to determine whether the agent could reduce the cytotoxic, apoptotic, and morphological effects on ADMSCs when used in combination with OT. For this purpose, the cytotoxic effects of the FK506 and OT on ADMSCs were determined by time and dose dependent manner by the WST-1 test. Isobologram analysis was evaluated using the WST-1 test according to IC50 values of FK506 and OT. The apoptotic effects of the agents on the ADMSCs were determined by the Annexin V method. Immunofluorescence staining was performed to determine morphological changes. Changes in the levels of oxidative stress markers were measured by colorimetric and flourometric methods using lipid peroxidation, superoxide dismutase activity, catalase activity and glutathione peroxidase assays. The IC50 values of FK506 and OT on ADMSCs were calculated as 17.44μM and 13.43μM, respectively.FK506 and OT were found to have antagonistic activity on ADMSCs (CI value of the combination was 1.24). The effects of the agents individually and in combination on the levels of apoptosis and oxidative stress markers have been evaluated. When the results obtained from the study are evaluated, the adipose- tissue derived mesenchymal stem cells used with takrolimus and oxytocin combination have a potential for novel treatment approaches.
Collapse
Affiliation(s)
- Gozde Sir
- Department of Stem Cell, Ege University, Health Science Institue, Izmır, Turkey
| | - Bakiye Goker Bagca
- Department of Medical Biology, Ege University, Faculty of Medicine, Izmir, Turkey.
| | - Gurkan Yigitturk
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey
| | - Turker Cavusoglu
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey; Ege University & Cord Blood, Cell And Tissue Research And Application Centre, Ege University, Izmir, Turkey
| | - Cigir Biray Avci
- Department of Medical Biology, Ege University, Faculty of Medicine, Izmir, Turkey
| | - Cumhur Gunduz
- Department of Medical Biology, Ege University, Faculty of Medicine, Izmir, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Izmir, Turkey; Ege University & Cord Blood, Cell And Tissue Research And Application Centre, Ege University, Izmir, Turkey
| |
Collapse
|
17
|
Uyanikgil Y, Cavusoglu T, Kılıc KD, Yigitturk G, Celik S, Tubbs RS, Turgut M. Useful Effects of Melatonin in Peripheral Nerve Injury and Development of the Nervous System. J Brachial Plex Peripher Nerve Inj 2017; 12:e1-e6. [PMID: 28603548 PMCID: PMC5465311 DOI: 10.1055/s-0036-1597838] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 11/28/2016] [Indexed: 01/23/2023] Open
Abstract
This review summarizes the role of melatonin (MLT) in defense against toxic-free radicals and its novel effects in the development of the nervous system, and the effect of endogenously produced and exogenously administered MLT in reducing the degree of tissue and nerve injuries. MLT was recently reported to be an effective free radical scavenger and antioxidant. Since endogenous MLT levels fall significantly in senility, these findings imply that the loss of this antioxidant could contribute to the incidence or severity of some age-related neurodegenerative diseases. Considering the high efficacy of MLT in overcoming much of the injury not only to the peripheral nerve but also to other organs, clinical trials for this purpose should be seriously considered.
Collapse
Affiliation(s)
- Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir, Turkey.,Cord Blood, Cell-Tissue Research and Application Center, Ege University, İzmir, Turkey
| | - Turker Cavusoglu
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir, Turkey.,Cord Blood, Cell-Tissue Research and Application Center, Ege University, İzmir, Turkey
| | - Kubilay Dogan Kılıc
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir, Turkey
| | - Gurkan Yigitturk
- Department of Histology and Embryology, Faculty of Medicine, Ege University, İzmir, Turkey
| | - Servet Celik
- Department of Anatomy, Faculty of Medicine, Ege University, İzmir, Turkey
| | | | - Mehmet Turgut
- Department of Neurosurgery, Adnan Menderes University School of Medicine, Aydın, Turkey
| |
Collapse
|
18
|
Teymur H, Tiftikcioglu YO, Cavusoglu T, Tiftikcioglu BI, Erbas O, Yigitturk G, Uyanikgil Y. Effect of platelet-rich plasma on reconstruction with nerve autografts. Kaohsiung J Med Sci 2017; 33:69-77. [DOI: 10.1016/j.kjms.2016.11.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/04/2016] [Accepted: 11/14/2016] [Indexed: 01/09/2023] Open
|
19
|
Uyanikgil Y, Cavusoglu T, Balcıoglu HA, Gurgul S, Solmaz V, Ozlece HK, Erten N, Erbas O. Rebaudioside A inhibits pentylenetetrazol-induced convulsions in rats. Kaohsiung J Med Sci 2016; 32:446-51. [PMID: 27638403 DOI: 10.1016/j.kjms.2016.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 04/11/2016] [Revised: 06/01/2016] [Accepted: 07/01/2016] [Indexed: 10/21/2022] Open
Abstract
The safety of patients with epilepsy consuming sweetening agents, which is becoming increasingly prevalent for various reasons, is a topic that should be emphasized as sensitively as it is for other diseases. Patients with epilepsy consume sweetening agents for different reasons such being diabetic or overweight. They can occasionally be exposed to sweetening agents unrestrainedly through consuming convenience food, primarily beverages. This study aimed to investigate the effects of rebaudioside A (Reb-A), which is a steviol glycoside produced from the herb Stevia rebaudiana (Bertoni), on epileptic seizures and convulsions induced by pentylenetetrazole (PTZ). Forty-eight male rats were used. Twenty-four rats were administered 35 mg/kg PTZ to trigger epileptiform activity; the remaining 24 rats were administered 70 mg/kg PTZ to trigger the convulsion model. The epileptiform activity was evaluated by spike percentage, whereas convulsion was evaluated by Racine's Convulsion Scale and the onset time of the first myoclonic jerk. Statistical analysis revealed a statistically significant decrease in the Racine's Convulsion Scale score and increase in the latency of first myoclonic jerk in a dose-dependent manner for the rat groups in which PTZ epilepsy had been induced and Reb-A had been administered. For the groups that were administered Reb-A, the spike decrease was apparent in a dose-dependent manner, based on the spike percentage calculation. These results indicated that Reb-A has positive effects on PTZ-induced convulsions.
Collapse
Affiliation(s)
- Yigit Uyanikgil
- Department of Histology and Embryology, Cord Blood, Cell and Tissue Research and Application Centre, Ege University Faculty of Medicine, Izmir, Turkey.
| | - Turker Cavusoglu
- Department of Histology and Embryology, Cord Blood, Cell and Tissue Research and Application Centre, Ege University Faculty of Medicine, Izmir, Turkey
| | - Huseyin A Balcıoglu
- Department of Anatomy, Faculty of Dentistry, İstanbul University, Istanbul, Turkey
| | - Serkan Gurgul
- Department of Biophysics, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey
| | - Volkan Solmaz
- Department of Neurology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Hatice K Ozlece
- Department of Neurology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Nilgun Erten
- Department of Neurology, Ordu State Hospital, Ordu, Turkey
| | - Oytun Erbas
- Department of Physiology, Faculty of Medicine, Istanbul Bilim University, Istanbul, Turkey
| |
Collapse
|
20
|
Yalcin A, Soddu E, Turunc Bayrakdar E, Uyanikgil Y, Kanit L, Armagan G, Rassu G, Gavini E, Giunchedi P. Neuroprotective Effects of Engineered Polymeric Nasal Microspheres Containing Hydroxypropyl-β-cyclodextrin on β-Amyloid (1-42)-Induced Toxicity. J Pharm Sci 2016; 105:2372-80. [PMID: 27353207 DOI: 10.1016/j.xphs.2016.05.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 02/19/2016] [Revised: 05/19/2016] [Accepted: 05/19/2016] [Indexed: 12/31/2022]
Abstract
β-Amyloid (Aβ) plaques are the key neurotoxic assemblies in Alzheimer disease. It has been suggested that an interaction occurs between membrane cholesterol and Aβ aggregation in the brain. Cyclodextrins can remove cholesterol from cell membranes and change receptor function. This study aimed to investigate the effect of hydroxypropyl-β-cyclodextrin (HP-CD) polymeric microspheres, based on chitosan or sodium alginate, on the levels of lipid peroxidation, reactive oxygen species production, and mitochondrial function in brain synaptosomes. The effect of microspheres on DNA fragmentation, the expression of Bcl-2, Bax, and Apex1 mRNAs in rat hippocampus after Aβ(1-42) peptide-induced neurotoxicity was also evaluated. Comparison with HP-CD raw material was performed. Aβ(1-42) treatment significantly decreased the mitochondrial activity of Apex1 and Bcl-2 mRNAs, induced DNA fragmentation, and increased mRNA levels of Bax. Treatment with HP-CD microspheres against Aβ(1-42) significantly reduced DNA fragmentation and increased the Bcl-2/Bax mRNA ratio and mitochondrial function. In addition, HP-CD microspheres used against Aβ(1-42) decreased the levels of lipid peroxidation and reactive oxygen species production. These results indicate that nasally administered spray-dried HP-CD microspheres are able to provide protection against Aβ(1-42)-induced neurotoxicity, due to the suppressed levels of oxidative stress and apoptotic signals in the rat hippocampus.
Collapse
Affiliation(s)
- Ayfer Yalcin
- Department of Biochemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir 35100, Turkey; Department of Neurosciences, Health Science Institute, Ege University, Bornova, Izmir 35100, Turkey
| | - Elena Soddu
- Department of Chemistry and Pharmacy, University of Sassari, Sassari 07100, Italy
| | - Ezgi Turunc Bayrakdar
- Department of Biochemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir 35100, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkey
| | - Lutfiye Kanit
- Department of Neurosciences, Health Science Institute, Ege University, Bornova, Izmir 35100, Turkey; Department of Physiology, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkey
| | - Guliz Armagan
- Department of Biochemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir 35100, Turkey
| | - Giovanna Rassu
- Department of Chemistry and Pharmacy, University of Sassari, Sassari 07100, Italy
| | - Elisabetta Gavini
- Department of Chemistry and Pharmacy, University of Sassari, Sassari 07100, Italy.
| | - Paolo Giunchedi
- Department of Chemistry and Pharmacy, University of Sassari, Sassari 07100, Italy
| |
Collapse
|
21
|
Ersel M, Uyanikgil Y, Karbek Akarca F, Ozcete E, Altunci YA, Karabey F, Cavusoglu T, Meral A, Yigitturk G, Oyku Cetin E. Effects of Silk Sericin on Incision Wound Healing in a Dorsal Skin Flap Wound Healing Rat Model. Med Sci Monit 2016; 22:1064-78. [PMID: 27032876 PMCID: PMC4822939 DOI: 10.12659/msm.897981] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [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] [Indexed: 12/02/2022] Open
Abstract
Background The wound healing process is complex and still poorly understood. Sericin is a silk protein synthesized by silk worms (Bombyx mori). The objective of this study was to evaluate in vivo wound healing effects of a sericin-containing gel formulation in an incision wound model in rats. Material/Methods Twenty-eight Wistar-Albino rats were divided into 4 groups (n=7). No intervention or treatment was applied to the Intact control group. For other groups, a dorsal skin flap (9×3 cm) was drawn and pulled up with sharp dissection. The Sham operated group received no treatment. The Placebo group received placebo gel without sericin applied to the incision area once a day from day 0 to day 9. The Sericin Group 3 received 1% sericin gel applied to the incision area once a day from day 0 to day 9. Hematoxylin and eosin stain was applied for histological analysis and Mallory-Azan staining was applied for histoimmunochemical analysis of antibodies and iNOS (inducible nitric oxide synthase), and desmin was applied to paraffin sections of skin wound specimens. Parameters of oxidative stress were measured in the wound area. Results Epidermal thickness and vascularization were increased, and hair root degeneration, edema, cellular infiltration, collagen discoloration, and necrosis were decreased in Sericin group in comparison to the Placebo group and the Sham operated group. Malonyldialdehyde (MDA) levels were decreased, but superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activities were increased in the sericin group. Conclusions We found that sericin had significant positive effects on wound healing and antioxidant activity. Sericin-based formulations can improve healing of incision wounds.
Collapse
Affiliation(s)
- Murat Ersel
- Department of Emergency Medicine, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Funda Karbek Akarca
- Department of Emergency Medicine, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Enver Ozcete
- Department of Emergency Medicine, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Yusuf Ali Altunci
- Department of Emergency Medicine, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Fatih Karabey
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, Bornova, Izmir, Turkey
| | - Turker Cavusoglu
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Ayfer Meral
- Department of Biochemistry, Evliya Celebi Training and Research Hospital, Faculty of Medicine, Dumlupınar University, Kutahya, Turkey
| | - Gurkan Yigitturk
- Department of Histology and Embryology, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey
| | - Emel Oyku Cetin
- Department of Biopharmaceutics and Pharmacokinetics, Ege University, Faculty of Pharmacy, Bornova, Izmir, Turkey
| |
Collapse
|
22
|
|
23
|
Cavusoglu T, Popken J, Guengoer T, Yilmaz O, Uyanikgil Y, Ates U, Baka M, Oztas E, Zakhartchenko V. Ultra-Structural Alterations in In Vitro Produced Four-Cell Bovine Embryos Following Controlled Slow Freezing or Vitrification. Anat Histol Embryol 2015; 45:291-307. [PMID: 26293816 DOI: 10.1111/ahe.12197] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 07/09/2015] [Indexed: 11/30/2022]
Abstract
Cryopreservation is the process of freezing and preserving cells and tissues at low temperatures. Controlled slow freezing and vitrification have successfully been used for cryopreservation of mammalian embryos. We investigated the effect of these two cryopreservation methods on in vitro produced four-cell stage bovine embryos which were classified according to their quality and separated into three groups. The first group was maintained as untreated controls (n = 350). Embryos of the second (n = 385) and the third (n = 385) groups were cryopreserved either by controlled slow freezing or by vitrification. Embryos in groups 2 and 3 were thawed after 1 day. Hundred embryos were randomly selected from the control group, and 100 morphologically intact embryos from the second and third group were thawed after 1 day and cultured to observe the development up to the blastocyst stage. The blastocyst development rate was 22% in the control group, 1% in the slow-freezing group and 3% in the vitrification group. Remaining embryos of all three groups were examined by light microscopy, transmission electron microscopy and immunofluorescence confocal microscopy with subsequent histological staining procedures. Cryopreservation caused degenerative changes at the ultra-structural level. Compared with vitrification, slow freezing caused an increased mitochondrial degeneration, cytoplasmic vacuolization, disruption of the nuclear and plasma membrane integrity, organelle disintegration, cytoskeletal damage, a reduced thickness of the zona pellucida and a formation of fractures in the zona pellucida. Further studies are required to understand and decrease the harmful effects of cryopreservation.
Collapse
Affiliation(s)
- T Cavusoglu
- Department of Histology and Embryology, Ege University, 35100, Izmir, Turkey.,Cord Blood, Cell-Tissue Application and Research Center, Ege University, 35100, Izmir, Turkey
| | - J Popken
- Division of Anthropology and Human Genetics, Biocenter, Ludwig-Maximilian-University of Munich, Grosshadernerstrasse 2, 82152, Planegg-Martinsried, Germany
| | - T Guengoer
- Department of Molecular Animal Breeding and Biotechnology, Ludwig-Maximilian-University of Munich, Hackerstr. 27, 85764, Oberschleissheim, Germany
| | - O Yilmaz
- Department of Histology and Embryology, Ege University, 35100, Izmir, Turkey.,Cord Blood, Cell-Tissue Application and Research Center, Ege University, 35100, Izmir, Turkey
| | - Y Uyanikgil
- Department of Histology and Embryology, Ege University, 35100, Izmir, Turkey.,Cord Blood, Cell-Tissue Application and Research Center, Ege University, 35100, Izmir, Turkey
| | - U Ates
- Department of Histology and Embryology, Bilim University School of Medicine, 34349, Istanbul, Turkey
| | - M Baka
- Department of Histology and Embryology, Ege University, 35100, Izmir, Turkey.,Cord Blood, Cell-Tissue Application and Research Center, Ege University, 35100, Izmir, Turkey
| | - E Oztas
- Department of Histology and Embryology, Gulhane Military Medical Academy, 06010, Ankara, Turkey
| | - V Zakhartchenko
- Department of Molecular Animal Breeding and Biotechnology, Ludwig-Maximilian-University of Munich, Hackerstr. 27, 85764, Oberschleissheim, Germany
| |
Collapse
|
24
|
Cavusoglu T, Karadeniz T, Cagiltay E, Karadeniz M, Yigitturk G, Acikgoz E, Uyanikgil Y, Ates U, Tuglu M, Erbas O. The Protective Effect of Losartan on Diabetic Neuropathy in a Diabetic Rat Model. Exp Clin Endocrinol Diabetes 2015; 123:479-84. [DOI: 10.1055/s-0035-1550019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- T. Cavusoglu
- Department of Histology & Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - T. Karadeniz
- Departmen of Pathology, Izmir Tepecik Training and Research Hospital, Izmir, Turkey
| | - E. Cagiltay
- Department of Endocrinology & Metabolism, GATA Haydarpasa Teaching Hospital, Istanbul,Turkey
| | - M. Karadeniz
- Department of Endocrinology, Sifa University Faculty of Medicine, Izmir, Turkey
| | - G. Yigitturk
- Department of Histology & Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - E. Acikgoz
- Department of Histology & Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - Y. Uyanikgil
- Department of Histology & Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - U. Ates
- Department of Histology & Embryology, Bilim University Faculty of Medicine, Istanbul, Turkey
| | - M. Tuglu
- Department of Histology & Embryology, Celal Bayar University Faculty of Medicine, Manisa, Turkey
| | - O. Erbas
- Department of Physiology, Bilim University Faculty of Medicine, Istanbul, Turkey
| |
Collapse
|
25
|
Uyanikgil Y, Özkeşkek K, Çavuşoğlu T, Solmaz V, Tümer MK, Erbas O. Positive effects of ceftriaxone on pentylenetetrazol-induced convulsion model in rats. Int J Neurosci 2015; 126:70-5. [DOI: 10.3109/00207454.2014.991821] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
26
|
Abstract
Taurine has anti-inflammatory and antioxidant characteristics. We have introduced taurine into a tendon-healing model to evaluate its effects on tendon healing and adhesion formation. Two groups of 16 rats underwent diversion and repair of the Achilles tendon. One group received a taurine injection (200 mg/ml) at the repair site, while the other group received 1 ml of saline. Specimens were harvested at 6 weeks and underwent biomechanical and histological evaluation. No tendon ruptured. Average maximum load was significantly greater in the taurine-applied group compared with the control group (p < 0.05). Similarly, average energy uptake was significantly higher in the taurine-applied group compared with the control group (p < 0.05). We observed no significant differences in stiffness in both groups (p > 0.05). After histological assessment, we found that fibroblast proliferation, edema, and inflammation statistically decreased in the treatment group (p < 0.05). These findings could indicate greater tendon strength with less adhesion formation, and taurine may have an effect on adhesion formation.
Collapse
Affiliation(s)
- Ovunc Akdemir
- Department of Plastic, Reconstructive, and Aesthetic Surgery, Kemerburgaz University , Istanbul , Turkey
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Biler A, Yucebilgin S, Sendag F, Akman L, Akdemir A, Ates U, Uyanikgil Y, Yilmaz-Dilsiz O, Sezer E. The effects of different intraabdominal pressure protocols in laparoscopic procedures on oxidative stress markers and morphology in rat ovaries. ADV CLIN EXP MED 2014; 23:885-92. [PMID: 25618113 DOI: 10.17219/acem/37331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND To determine the effects of different intraabdominal pressure (IAP) on the ovaries in a laparoscopic rat model. OBJECTIVES The aim of the study was to determine the effects on the ovaries of different intraabdominal pressures (IAP) in laparoscopic surgery in a rat model. MATERIAL AND METHODS Thirty-two post-pubertal nonpregnant Sprague-Dawley rats were divided randomly into four groups. In the control group, no intraabdominal pressure (IAP) was applied. In Group Pp10 and Group Pp15, an IAP of 10 and 15 mm Hg, respectively, were applied by carbon dioxide insufflation for 60 min, and a 30-min desufflation was carried out. In Group IPp15, a 15 mm Hg IAP was applied for 10 min, and then CO2 was desufflated for 10 min. After this ischemic preconditioning, IAP was established at 15 mm Hg for 60 min, after which CO2 was desufflated for 30 min. Erythrocyte and ovarian tissue malondialdehyde (MDA) and histopathologic damage scores were evaluated. RESULTS In Groups Pp10 and Pp15, ovarian tissue MDA values were significantly increased compared to the control group. In Groups Pp10 and Pp15, erythrocyte MDA values were significantly increased when compared to Group IPp15 and the control group. Ovarian histopatological assesment scores were significantly higher in Group Pp15 than in Groups Pp10 and IPp15. CONCLUSIONS Pneumoperitoneum causes injuries to abdominal organ such as the ovaries. The ischemic preconditioning method is more effective in reducing oxidative stress due to laparoscopic pneumoperitoneum than low-pressure pneumoperitoneum methods.
Collapse
Affiliation(s)
- Alper Biler
- Fatsa Gynecology and Maternity Training and Research Hospital of TC Ministry of Health, Ordu, Turkey
| | - Sait Yucebilgin
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Fatih Sendag
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Levent Akman
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Ali Akdemir
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Utku Ates
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Ozlem Yilmaz-Dilsiz
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| | - Ebru Sezer
- Department of Biochemistry, Faculty of Medicine, Ege University, Bornova, İzmir, Turkey
| |
Collapse
|
28
|
Turunc Bayrakdar E, Armagan G, Uyanikgil Y, Kanit L, Koylu E, Yalcin A. Ex vivoprotective effects of nicotinamide and 3-aminobenzamide on rat synaptosomes treated with Aβ(1-42). Cell Biochem Funct 2014; 32:557-64. [DOI: 10.1002/cbf.3049] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 06/24/2014] [Accepted: 07/17/2014] [Indexed: 01/20/2023]
Affiliation(s)
- Ezgi Turunc Bayrakdar
- Department of Biochemistry, Faculty of Pharmacy; Ege University; Bornova Izmir Turkey
| | - Guliz Armagan
- Department of Biochemistry, Faculty of Pharmacy; Ege University; Bornova Izmir Turkey
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine; Ege University; Bornova Izmir Turkey
| | - Lutfiye Kanit
- Center for Brain Research, Faculty of Medicine; Ege University; Bornova Izmir Turkey
- Department of Neurosciences, Institute of Health Sciences; Ege University; Bornova Izmir Turkey
- Department of Physiology, Faculty of Medicine; Ege University; Bornova Izmir Turkey
| | - Ersin Koylu
- Center for Brain Research, Faculty of Medicine; Ege University; Bornova Izmir Turkey
- Department of Neurosciences, Institute of Health Sciences; Ege University; Bornova Izmir Turkey
- Department of Physiology, Faculty of Medicine; Ege University; Bornova Izmir Turkey
| | - Ayfer Yalcin
- Department of Biochemistry, Faculty of Pharmacy; Ege University; Bornova Izmir Turkey
- Center for Brain Research, Faculty of Medicine; Ege University; Bornova Izmir Turkey
- Department of Neurosciences, Institute of Health Sciences; Ege University; Bornova Izmir Turkey
- Department of Biochemistry; Faculty of Pharmacy, Biruni University; Topkapi Istanbul Turkey
| |
Collapse
|
29
|
Turunc Bayrakdar E, Uyanikgil Y, Kanit L, Koylu E, Yalcin A. Nicotinamide treatment reduces the levels of oxidative stress, apoptosis, and PARP-1 activity in Aβ(1-42)-induced rat model of Alzheimer's disease. Free Radic Res 2013; 48:146-58. [PMID: 24151909 DOI: 10.3109/10715762.2013.857018] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The underlying mechanisms of Alzheimer's Disease (AD) are still unclear. It is suggested that poly(ADP-ribose) polymerase-1 (PARP-1) overactivation can cause neuroinflammation and cell death. In this study we searched the effects of nicotinamide (NA), endogenous PARP-1 inhibitor, on oxidative stress, apoptosis, and the regulation of PARP-1 and nuclear factor kappa B (NF-κB) in amyloid beta peptide (1-42) (Aβ(1-42))-induced neurodegeneration. Sprague-Dawley rats were divided into four groups as control, Aβ(1-42), Aβ(1-42) + NA(100 and 500 mg/kg). All groups were stereotaxically injected bilaterally into the hippocampus with Aβ(1-42) or saline. After surgery NA administrations were made intraperitoneally (ip) for 7 days. In order to investigate the effects of Aβ(1-42) and NA, protein carbonyls, lipid peroxidation, reactive oxygen species (ROS) production, glutathione (GSH) levels, activities of antioxidant enzymes (catalase, superoxide dismutase, glutathione peroxidase), mitochondrial function, mRNA and protein levels of PARP-1, NF-κB, p53, Bax, and Bcl-2 were measured in specific brain regions such as cortex and hippocampus. Aβ(1-42) treatment only increased the oxidative stress parameters and caused decline in antioxidant enzyme activities, mitochondrial function, and GSH levels. Also, overexpression of PARP-1, NF-κB, p53, Bax, and the decreased levels of Bcl-2 were observed in Aβ(1-42)-treated group. NA treatments against Aβ(1-42)-upregulated Bcl-2 and downregulated PARP-1, NF-κB, p53, and Bax levels. NA treatments also decreased the oxidative stress parameters and elevated antioxidant enzyme activities, GSH levels, and mitochondrial function against Aβ(1-42) treatment. These data suggest that NA may have a therapeutic potential in neurodegenerative processes due to the decreased levels of oxidative stress, apoptosis, and PARP-1 activity.
Collapse
Affiliation(s)
- E Turunc Bayrakdar
- Department of Biochemistry, Faculty of Pharmacy, Ege University , Bornova, Izmir , Turkey
| | | | | | | | | |
Collapse
|
30
|
Yilmaz Dilsiz O, Akhundzada I, Bilkay U, Uyanikgil Y, Teymur H, Ates U, Baka M. Effects of Metoclopramide and Ranitidine on survival of flat template McFarlane skin flaps in a rat wound healing model. Drug Res (Stuttg) 2013; 64:91-7. [PMID: 24026958 DOI: 10.1055/s-0033-1353180] [Citation(s) in RCA: 3] [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: 10/26/2022]
Abstract
Wound healing re-provides the morphological integrity after trauma. We investigated the effects of Metoclopramide and Ranitidine on survival of flat template McFarlane skin flaps in an experimental wound healing model.Rats (n:32) were randomly allocated in following groups: Flap control (Control), Metoclopramide(MET), Ranitidine(RAN) and Metoclopramide+Ranitidine (MET+RAN). After flap elevation, ip 10 mg/kg Ranitidin or 5 mg/kg Metoclopramide or the combination of both drugs were administered for 3 days. Next analgesia was maintained. No additional drugs were used for controls. On 10th day, whole cut skin flaps were excised, fixed in buffered formaldehyde and processed with histological techniques. Paraffine sections were stained with Hematoxylen-Eosin, Mallory-Azan and immunohistochemically with Desmin and Fibronectin and then evaluated with light microscopy.Experimental groups showed differences for epidermal degeneration, edema, hypertrophy of the hair follicles, neutrophil infiltration and areolar degeneration. Metoclopramide or Ranitidine administration positively impacts wound healing.This unique study emphasizes the importance of considering Metoclopramide or Ranitidine for possible adverse effects on flap survival in surgical clinics, therefore the combination of both drugs is not more effective.
Collapse
Affiliation(s)
- O Yilmaz Dilsiz
- Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - I Akhundzada
- Plastic and Reconstructive Surgery, Ege University Faculty of Medicine, Izmir, Turkey
| | - U Bilkay
- Plastic and Reconstructive Surgery, Ege University Faculty of Medicine, Izmir, Turkey
| | - Y Uyanikgil
- Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - H Teymur
- Plastic and Reconstructive Surgery, Ege University Faculty of Medicine, Izmir, Turkey
| | - U Ates
- Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| | - M Baka
- Histology and Embryology, Ege University Faculty of Medicine, Izmir, Turkey
| |
Collapse
|
31
|
Cetin EO, Yesil-Celiktas O, Cavusoglu T, Demirel-Sezer E, Akdemir O, Uyanikgil Y. Incision wound healing activity of pine bark extract containing topical formulations: a study with histopathological and biochemical analyses in albino rats. Pharmazie 2013; 68:75-80. [PMID: 23444785] [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: 06/01/2023]
Abstract
The present study was designed to identify and compare the in vivo wound healing capacity of a bark extract from Pinus brutia and Pycnogenol in an incision wound model in rats. O/W cream formulations were prepared incorporating 2% Pycnogenol and P. brutia bark extract. The rats were divided into three groups (n = 8). Subsequently placebo and test formulations were applied to animals once a day from day "0" until the 9th day. Malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) were studied in addition to histopathological examinations. Treatment with F. brutia extract containing cream inhibited lipid peroxidation by a 35% decrease in MDA and 46.8% increase in SOD activity, whereas 19.3% decrease in MDA and 34.7% increase in SOD activity were attained with Pynogenol compared to control. The histological data revealed a better performance of P. brutia extract enriched formulation in terms of degeneration of hair roots, increased vascularization and a decrease in necrotic area. Consequently, a high wound healing activity was observed in animals treated with P. brutia extract significantly accelerating the wound healing process.
Collapse
Affiliation(s)
- E O Cetin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Bornova - Izmir, Turkey.
| | | | | | | | | | | |
Collapse
|
32
|
Aktug H, Candüz B, Mavioğlu Ö, Erkin Y, Yilmaz Ö, Uyanikgil Y, Korkmaz H, Baka M. 121. Epidural Lornoxicam Administration- Innocent. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00072] [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: 11/03/2022]
|
33
|
Yavasoglu A, Karaaslan MA, Uyanikgil Y, Sayim F, Ates U, Yavasoglu NUK. Toxic effects of anatoxin-a on testes and sperm counts of male mice. ACTA ACUST UNITED AC 2008; 60:391-6. [DOI: 10.1016/j.etp.2008.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
34
|
Karasulu E, Yavasoğlu A, Evrensanal Z, Uyanikgil Y, Karasulu HY. Permeation studies and histological examination of sheep nasal mucosa following administration of different nasal formulations with or without absorption enhancers. Drug Deliv 2008; 15:219-25. [PMID: 18446567 DOI: 10.1080/10717540802006377] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
This study was designed to investigate the possible histological effects of different intranasal (IN) formulations of indomethacin (IND) on nasal mucosa in sheep. For this purpose, oil-in-water (O/W) emulsion (E) and solution (S) formulations including 3 mg/mL of IND were prepared. Penetration enhancers such as polyvinylpyrolidone (PVP), citric acid (CA) and sodium taurocholate (NaT) were added to emulsion (1%) at the final step into the formulations. First, the effect of penetration enhancers on permeation of IND was evaluated by in vitro permeation studies in which sheep nasal mucosa was used. According to the permeation studies PVP showed the highest enhancing effect on the permeation rate of IND from sheep nasal mucosa. Furthermore, the IND permeation from E containing PVP (1.624 +/- 0.045 mg) was significantly higher than that obtained from E (0.234 +/- 0.012 mg) (p < 0.05). For the histological studies, white Karaman sheep of approximately 20 +/- 5 kg, aged 4 to 8 months were used. They were randomly divided into eight groups, each including three sheep. Five experimental groups received different formulations of IND emulsion without/ with penetration enhancers (E-PVP, E-CA, E-NaT, E) and IND solution (S), respectively. Parallel controls were composed of either untreated groups and were given blank emulsion or isotonic sodium chloride solution (0.31 mg/kg). 2 mL of each experimental formulation was applied to both nostrils of sheep, and 1/3 central and lower regions of the nose were dissected and prepared for light microscopy. Specimens stained with hematoxylin and eosin and Gomori's trichrome were examined by light microscopy. No signs of inflammation or erosion were noticed in the nasal mucosa of the control groups. Widened epithelial intercellular spaces were noticed in E-CA, E-NaT, and E-PVP groups as well with the E-PVP group showing the largest intraepithelial separations. E-CA and E-NaT groups showed significant decrease in the amount of goblet cells, while hypoplasia was considerably moderate in the E-PVP group. Finally, intranasal administration of IND emulsion with PVP may be considered as an alternative to intravenous and per oral administrations of IND to overcome their adverse effects.
Collapse
Affiliation(s)
- Ercüment Karasulu
- Department of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmacy, University of Ege, Izmir, Turkey.
| | | | | | | | | |
Collapse
|
35
|
Yavasoglu A, Sayim F, Uyanikgil Y, Turgut M, Karabay-Yavasoglu NÜ. The Pyrethroid Cypermethrin-Induced Biochemical and Histological Alterations in Rat Liver. ACTA ACUST UNITED AC 2006. [DOI: 10.1248/jhs.52.774] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Altug Yavasoglu
- Department of Histology and Embryology, Ege University, Faculty of Medicine
| | - Ferah Sayim
- Department of Biology, Ege University, Faculty of Science
| | - Yigit Uyanikgil
- Department of Histology and Embryology, Ege University, Faculty of Medicine
| | - Mehmet Turgut
- Department of Neurosurgery, Adnan Menderes University, Faculty of Medicine
| | | |
Collapse
|
36
|
Turgut M, Uyanikgil Y, Baka M, Tunç AT, Yavaşoğlu A, Yurtseven ME, Kaplan S. Pinealectomy exaggerates and melatonin treatment suppresses neuroma formation of transected sciatic nerve in rats: gross morphological, histological and stereological analysis. J Pineal Res 2005; 38:284-91. [PMID: 15813906 DOI: 10.1111/j.1600-079x.2004.00205.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [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] [Indexed: 11/30/2022]
Abstract
At present, an intensive effort for prevention of neuroma formation following peripheral nerve section continues. It has been recently suggested that surgical pinealectomy (Px) induces elevation of the collagen content in the granulation tissue of a wound, while melatonin application after Px suppresses elevation of the collagen accumulation in the tissue. The aim of the present study was to assess whether melatonin had the ability to suppress collagen production and neuroma formation following peripheral nerve transection. A total of 40 male rats (four groups of 10) were left intact (intact controls) or sham operated (sham group), were Px, or were Px and given melatonin (Px + melatonin group). All animals underwent a surgical intervention consisting of right sciatic nerve neurectomy. After 4 wk, the animals were killed following intracardiac perfusion. Gross morphology of neuroma formation in the proximal nerve segment was examined and proximal neuroma evaluated. Macroscopic and microscopic findings revealed that Px caused a proliferation of connective tissue and large neuroma formation at the proximal ends of transected nerves. Stereological analysis showed that there was a statistically significant reduction in connective tissue content of the same region in Px animals treated with melatonin (P < 0.005). The results achieved in a rodent model of sciatic nerve neuroma formation showed that there was a positive correlation between macroscopic and microscopic observations, and that melatonin enhanced axonal regeneration presumably due to its inhibitory effect on neuroma formation.
Collapse
Affiliation(s)
- Mehmet Turgut
- Department of Neurosurgery, Adnan Menderes University School of Medicine, Aydin, Turkey.
| | | | | | | | | | | | | |
Collapse
|
37
|
Sayim F, Yavasoglu N&UK, Uyanikgil Y, Aktug H, Yavasoglu A, Turgut M. Neurotoxic Effects of Cypermethrin in Wistar Rats: a Haematological, Biochemical and Histopathological Study. ACTA ACUST UNITED AC 2005. [DOI: 10.1248/jhs.51.300] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ferah Sayim
- Department of Biology, Faculty of Science, Ege University
| | | | - Yigit Uyanikgil
- Department of Histology and Embryology, Faculty of Medicine, Ege University
| | - Hüseyin Aktug
- Department of Histology and Embryology, Faculty of Medicine, Ege University
| | - Altug Yavasoglu
- Department of Histology and Embryology, Faculty of Medicine, Ege University
| | - Mehmet Turgut
- Department of Neurosurgery, Faculty of Medicine, Adnan Menderes University
| |
Collapse
|