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Şingar E, Akbulut A, Koca G, Yazihan N, Atilgan Hİ, Yumuşak N, Demir A, Burcu A, Korkmaz M. The influencer effect of Dexmedetomidine on radioiodine relevant to lacrimal gland impairment. Int Ophthalmol 2024; 44:115. [PMID: 38411703 DOI: 10.1007/s10792-024-03052-6] [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] [Received: 05/11/2023] [Accepted: 02/16/2024] [Indexed: 02/28/2024]
Abstract
PURPOSE To assess the potential influencing effects of Dexmedetomidine on impaired lacrimal glands after high-dose radioiodine treatment (RAI). METHODS Thirty-six rats were arbitrarily separated into 3 groups: Sham, RAI, and Dexmedetomidine. Dexmedetomidine group was given Dexmedetomidine and RAI, the Sham group was given the same millimeters of saline, and the RAI group was given RAI only. All forms of lacrimal glands, including harderian glands (HG), extraorbital (EG), and intraorbital (IG) lacrimal glands, were evaluated for immunohistochemical, histopathologic assessments and also for tissue cytokines, oxidant and antioxidant levels. RESULTS Dexmedetomidine significantly ameliorated histopathologic changes such as periacinar fibrosis, acinar atrophy, lymphocytic infiltration, ductal proliferation, lipofuscin-like accumulation, and nucleus changes caused by RAI in all lacrimal gland forms (p < 0.05 for all of the parameters). However, periductal fibrosis was improved significantly only in EG (p = 0.049), and mast cell infiltration was improved significantly only in IG (p = 0.038) in Dexmedetomidine groups. There was a significant decrease in the elevated caspase-3 and TUNEL levels after RAI administration in the Dexmedetomidine group in all lacrimal gland forms (p < 0.05 for all parameters). Dexmedetomidine attenuated NF-kb, TNF-α, and IL-6 levels significantly diminished total oxidant status and raised total antioxidant status levels (p < 0.05 for all parameters). CONCLUSIONS The results of this study demonstrated that following RAI, Dexmedetomidine diminished inflammation, tissue cytokine levels, and apoptosis and ameliorated impaired histopathologic patterns of the lacrimal glands.
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Affiliation(s)
- Evin Şingar
- Department of Ophthalmology, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey.
| | - Aylin Akbulut
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
| | - Gökhan Koca
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
| | - Nuray Yazihan
- Department of Physiopathology, Ankara University, Ankara, Turkey
| | - Hasan İkbal Atilgan
- Department of Nuclear Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Nihat Yumuşak
- Veterinary Faculty, Department of Pathology, Harran University, Sanliurfa, Turkey
| | - Ayten Demir
- Faculty of Nursing, Ankara University, Ankara, Turkey
| | - Ayse Burcu
- Department of Ophthalmology, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
| | - Meliha Korkmaz
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey
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Mansız-Kaplan B, Kotanoğlu MS, Gürsoy K, Vural S, Koca G, Nacır B, Yumuşak N, Kara H, Yüksel S, Korkmaz M. Evaluation of the effect of pitavastatin on motor deficit and functional recovery in sciatic nerve injury: A CatWalk study. Turk J Phys Med Rehabil 2023; 69:334-343. [PMID: 37674804 PMCID: PMC10478549 DOI: 10.5606/tftrd.2023.11002] [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: 04/26/2022] [Accepted: 01/12/2023] [Indexed: 09/08/2023] Open
Abstract
Objectives This study aims to investigate the electrophysiological, scintigraphic, and histopathological effects of pitavastatin and its impact on functional status in rats with sciatic nerve injury. Materials and methods A total of 30 Wistar albino rats were divided into three equal groups including 10 rats in each group: sham group (no injury), control group (nerve injury induced), and pitavastatin group (nerve injury induced and 2 mg/kg of pitavastatin administered orally once a day for 21 days). Before and at the end of intervention, quantitative gait analysis with the CatWalk system and sciatic nerve conduction studies were performed. After the intervention, the gastrocnemius muscle was scintigraphically evaluated, and the sciatic nerve was histopathologically examined. Results There was no significant difference in the sciatic nerve conduction before the intervention and Day 21 among the groups (p>0.05). According to the quantitative gait analysis, there were significant differences in the control group in terms of the individual, static, dynamic, and coordination parameters (p<0.05). The histopathological examination revealed a significant difference in the total myelinated axon count and mean axon diameter among the groups (p<0.001). Conclusion Pitavastatin is effective in nerve regeneration and motor function recovery in rats with sciatic nerve injury.
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Affiliation(s)
- Başak Mansız-Kaplan
- Department of Ergotherapy, Ankara Medipol University, School of Health Sciences, Ankara, Türkiye
| | - Mustafa Sırrı Kotanoğlu
- Department of Anesthesiology and Reanimation, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Türkiye
| | - Koray Gürsoy
- Department of Plastic Reconstructive and Aesthetic Surgery, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Türkiye
| | - Seçil Vural
- Department of Physical Medicine and Rehabilitation, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Türkiye
| | - Gökhan Koca
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Türkiye
| | - Barış Nacır
- Department of Physical Medicine and Rehabilitation, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Türkiye
| | - Nihat Yumuşak
- Department of Pathology, Harran University Faculty of Veterinary Medicine, Urfa, Türkiye
| | - Halil Kara
- Department of Pharmacology, Yıldırım Beyazıt University Faculty of Medicine, Ankara, Türkiye
| | - Selcen Yüksel
- Department of Biostatistics, Yıldırım Beyazıt University Faculty of Medicine, Ankara, Türkiye
| | - Meliha Korkmaz
- Department of Nuclear Medicine, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Türkiye
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Dilli D, Taşoğlu İ, Sarı E, Akduman H, Yumuşak N, Tümer NB, Salar S. Therapeutic Role of Astaxanthin and Resveratrol in an Experimental Rat Model of Supraceliac Aortic Ischemia-Reperfusion. Am J Perinatol 2022. [PMID: 35644129 DOI: 10.1055/s-0042-1748324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
OBJECTIVE The aim of the study is to investigate the therapeutic effects of astaxanthin (AST) and resveratrol (RVT) on multiorgan damage in an animal model of the supraceliac aortic ischemia-reperfusion (I/R). METHODS In this study, 28 rats (n = 7/group), 200 to 250 g in weight, were randomized to four groups (1: Sham, 2: Control + I/R, 3: AST + I/R, and 4: RVT + I/R). Following the abdominal incision, aortic dissection was performed in the sham group without injury. Other groups underwent I/R injury via supraceliac aortic clamping (20 minutes) and reperfusion. The rats were administered olive oil (3 mL/kg) orally for 2 weeks before and 1 week after the laparotomy. Additionally, oral AST (10 mg/kg) or RVT (50 mg/kg) was given to the study groups. All rats were sacrificed on the 3rd week of the experiment after blood samples were taken for analysis. Multiple rat tissues were removed. RESULTS We found that RVT increased total antioxidant status (TAS) and superoxide dismutase (SOD) levels, and decreased total oxidant status (TOS), oxidative stress index (OSI), myeloperoxidase (MPO), and malondialdehyde (MDA) levels, while AST increased the levels of TAS, decreased TNF-α, MDA, TOS, and OSI (p <0.05). Pathological investigations of the rat tissues revealed that both AST and RVT ameliorated tissue damage and apoptosis. CONCLUSION Our study suggests that AST and RVT might show therapeutic effects against oxidative tissue damage and apoptosis in an animal model of aortic I/R. Further studies are required. KEY POINTS · Major congenital heart diseases are at high risk of multiorgan damage.. · Re-establishment of blood flow may result in ischemia-reperfusion (I/R) injury.. · Astaxanthin and resveratrol may have therapeutic effects against I/R injury..
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Affiliation(s)
- Dilek Dilli
- Department of Neonatology, University of Health Sciences of Turkey, Dr. Sami Ulus Maternity and Children Training and Research Hospital, Ankara, Turkey
| | - İrfan Taşoğlu
- Department of Cardiovascular Surgery, University of Health Sciences of Turkey, Türkiye Yüksek İhtisas Eğitim ve Araştırma Hastanesi, Ankara City Hospital, Ankara, Turkey
| | - Eyüp Sarı
- Department of Management, Gülhane Faculty of Medicine/Ankara Provincial Health Directorate, University of Health Sciences of Turkey, Public Hospitals Services Presidency, Ankara, Turkey
| | - Hasan Akduman
- Department of Neonatology, University of Health Sciences of Turkey, Dr. Sami Ulus Maternity and Children Training and Research Hospital, Ankara, Turkey
| | - Nihat Yumuşak
- Department of Pathology, Faculty of Veterinary Medicine, Harran University, Şanlıurfa, Turkey
| | - Naim Boran Tümer
- Department of Cardiovascular Surgery, University of Health Sciences of Turkey, Türkiye Yüksek İhtisas Eğitim ve Araştırma Hastanesi, Ankara City Hospital, Ankara, Turkey
| | - Salih Salar
- Department of Laboratory, Saki Yenilli Experimental Animals Production Laboratory, Ankara, Turkey
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Akkoca Ö, Kargın Kaytez S, Yumuşak N, Bilgen AS, Kavuzlu A, Öcal R, Çelik H, Arslan N. The Effect of Curcumin on the Prevention of Myringosclerosis in Rats. Turk Arch Otorhinolaryngol 2021; 59:26-32. [PMID: 33912858 PMCID: PMC8054924 DOI: 10.4274/tao.2020.5827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 11/14/2020] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the preventative effect of oral curcumin (CMN) on myringosclerosis (MS) in an experimental rat model. METHODS The study included 21 female Wistar albino rats randomly separated into three groups. Group 1 was given no treatment (control group). In Group 2 and Group 3, the tympanic membrane (TM) was perforated using a sterile ear pick. The rats in Group 3 were administered oral CMN 200 mg/kg/day. All rats were sacrificed after 16 days. Otomicroscopic and histopathologic examinations were performed on the tympanic membranes. RESULTS Histopathologic examinations revealed that there were statistically significant differences between Group 2 and Group 3 in terms of MS degrees (p<0.001) and mean thicknesses of TMs (p<0.001), but there were no differences between Group 1 and Group 3. In respect of MS detected by otomicroscopy, a statistically significant difference was determined between Groups 1 and 2 (p<0.001) and between Groups 2 and 3 (p<0.01), but there was no significant difference between Group 1 and Group 3 (p=0.575). CONCLUSION Orally administered CMN can prevent myringosclerosis formation in experimentally induced myringotomies.
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Affiliation(s)
- Özlem Akkoca
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Selda Kargın Kaytez
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Nihat Yumuşak
- Department of Pathology, Harran University Faculty of Veterinary Medicine, Şanlıurfa, Turkey
| | - Akif Sinan Bilgen
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Ali Kavuzlu
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Ramazan Öcal
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Hatice Çelik
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Necmi Arslan
- Department of Otorhinolaryngology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
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Kotanoğlu MS, Akbulut A, Gürsoy K, Koca G, Özcan N, Yumuşak N, Şenes M, Kırtıl G, Korkmaz M. The outcomes of dexmedetomidine and calcitriol on flap viability. Acta Cir Bras 2020; 35:e202000903. [PMID: 33027360 PMCID: PMC7531053 DOI: 10.1590/s0102-865020200090000003] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 05/21/2020] [Accepted: 08/20/2020] [Indexed: 11/21/2022] Open
Abstract
Purpose: To evaluate protective effects of dexmedetomidine, calcitriol and their
combination. Methods: Forty Wistar-albino rats were divided into 4 groups; group of Sham (Group
Sham); group of dexmedetomidine (Group DEX); group of calcitriol (Group CAL)
and group of dexmedetomidineandcalcitriol (Group DEX-CAL). Photographic
analysis was used for macroscopic analysis and perfusion analyses were
evaluated by scintigraphy. Additionally, tissue malondialdehyde (MDA) and
total oxidant status (TOS) and total antioxidant activity (TAS) were
recorded and oxidative stress index (OSI) was calculated. Each flap was
assessed by histopathology. Results: Compared to Group Sham, the viable flap areas were higher in all treatment
groups both by photographic image analyses and perfusion analyses
(p<0.05). Group DEX-CAL had the highest viable flap percentage both in
scintigraphic and photographic analyses; whereas Group Sham had the lowest
viable flap percentage. Similarly, TAS and MDA levels were elevated and TOS
levels were declined in all treatment groups compared to Group Sham
(p<0.005). Histopathological analysis at flap demarcation zone confirmed
neovascularization was significantly higher and edema, necrosis and
inflammation were significantly lower in all treatment groups compared to
Group Sham. Conclusion: The outcomes show that additional premedication with either dexmedetomidine
or calcitriol or their combination reduces ischemia-reperfusion injury of
flap area and show significant increase in the percentage of viable flap
tissue.
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Koca G, Singar E, Akbulut A, Yazihan N, Yumuşak N, Demir A, Korkmaz M. The Effect of Resveratrol on Radioiodine Therapy-Associated Lacrimal Gland Damage. Curr Eye Res 2020; 46:398-407. [PMID: 32730712 DOI: 10.1080/02713683.2020.1803920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE We have evaluated the potential radioprotective, antioxidant and anti-apoptotic effects of resveratrol (RSV) against high-dose radioactive iodine (RAI) therapy associated damage of the lacrimal glands by biochemical, histopathological and immunohistochemical methods. MATERIALS AND METHODS Thirty Wistar-albino rats were randomly divided into three groups; the control group received no treatment or medication, the RAI group received RAI but no medication and the RSV group received oral RAI and intraperitoneal RSV. RSV was started at day one, before RAI administration, and continued for 8 days. Bilateral intraorbital (IG), extraorbital (EG), and Harderian (HG) lacrimal glands were evaluated in all rats for histopathological, immunohistochemical, tissue cytokine and oxidant and antioxidant level assessment. RESULTS RSV group restored inflammation, fibrosis, vacuolization, change in nucleus characteristics, lipofuscin-like accumulation and cellular morphologic patterns were statistically significant in all lacrimal gland types, compared to the RAI group (p < .05 for all variables). Similarly, elevated Caspase-3 and TUNEL levels in the RAI group were significantly alleviated in the RSV group in all lacrimal gland types (p < .05 for all variables). RAI administration significantly elevated TNF-α, IL-6, NF-кb levels, and decreased IL-10 levels (p < .05 for all parameters) whereas TOS levels significantly increased and TAS levels were significantly decreased. However, RSV significantly diminished TNF-α, IL-6, IL-4, and NF-кb levels. Furthermore, RSV significantly decreased TOS and increased TAS levels (p < .05 for all variables). CONCLUSIONS We conclude that with its anti-cancer effect as well as its antioxidant effect RSV has protected the histopathological pattern of the lacrimal glands from the damage, decreased inflammation in histopathologic assessments, and decreased tissue cytokine levels, apoptosis and DNA fragmentation on the lacrimal glands after RAI.
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Affiliation(s)
- Gökhan Koca
- Department of Nuclear Medicine, Ankara Training and Application Hospital, University of Health Sciences , Ankara, Turkey
| | - Evin Singar
- Department of Ophthalmology, Ankara Training and Application Hospital, University of Health Sciences , Ankara, Turkey
| | - Aylin Akbulut
- Department of Nuclear Medicine, Ankara Training and Application Hospital, University of Health Sciences , Ankara, Turkey
| | - Nuray Yazihan
- Department of Pathophysiology, Ankara University School of Medicine , Ankara, Turkey
| | - Nihat Yumuşak
- Department of Pathology, Harran University Faculty of Veterinary Medicine , Sanliurfa, Turkey
| | - Ayten Demir
- Faculty of Health Sciences, Nursing Department, Ankara University , Ankara, Turkey
| | - Meliha Korkmaz
- Department of Nuclear Medicine, Ankara Training and Application Hospital, University of Health Sciences , Ankara, Turkey
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Koçak A, Özmeriç A, Koca G, Senes M, Yumuşak N, Iltar S, Korkmaz M, Alemdaroğlu KB. Lateral parapatellar and subvastus approaches are superior to the medial parapatellar approach in terms of soft tissue perfusion. Knee Surg Sports Traumatol Arthrosc 2018; 26:1681-1690. [PMID: 28835987 DOI: 10.1007/s00167-017-4690-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 08/18/2017] [Indexed: 01/02/2023]
Abstract
PURPOSE The arthrotomy techniques of knee surgery may cause varying degrees of disruption to the tissue blood supply. The aim of this study was to investigate the effects of the medial parapatellar (MPPa), midvastus (MVa), subvastus (SVa) and lateral parapatellar (LPPa) approaches on regional tissue perfusion of the knee. METHODS In this experimental study, a total of 28 female rabbits were applied with four different arthrotomy techniques as Group MPPa, Group MVa, Group SVa and Group LPPa. The blood supply of the tissue around the knee was examined by scintigraphic imaging including the perfusion reserve and T max, and biochemical alteration of the oxidative stress parameters including malondialdehyde (MDA), fluorescent oxidation products (FlOPs), and histopathological findings were evaluated on tissue samples after 3 weeks. RESULTS The perfusion reserve was increased in all four groups compared to the healthy, contralateral knees. In the Group LPPa, the vascularity was significantly increased compared to the Group MPPa (p = 0.006). In the examination of biochemical parameters, the increase in MDA levels was statistically significant in the Group MPPa compared with the Group LPPa (p = 0.004), and in the Group MVa compared with the Group LPPa (p = 0.006). The increase in the value of MDA levels was striking in the Group MPPa and Group MVa compared with the control group (p = 0.004, p = 0.004, respectively). The increase in another oxidative stress parameter, the tissue FlOPs levels, was statistically significant in the Group MPPa compared with the control group (p = 0.035). CONCLUSION The LPPa and SVa caused less oxidative stress and less disruption of the muscle blood supply, in biochemical and scintigraphic parameters, compared to the MPPa and MVa. Therefore, in clinical practice, the SVa is preferable to the MPPa and MVa in total knee arthroplasty and the LPPa should be preferred more frequently in selected cases with critical soft tissue viability.
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Affiliation(s)
- Aykut Koçak
- Department of Orthopaedics and Traumatology, Ankara Training and Research Hospital, 06534, Ankara, Turkey
| | - Ahmet Özmeriç
- Department of Orthopaedics and Traumatology, Ankara Training and Research Hospital, 06534, Ankara, Turkey.
| | - Gökhan Koca
- Department of Nuclear Medicine, Ankara Training and Research Hospital, Ankara, Turkey
| | - Mehmet Senes
- Department of Medical Biochemistry, Ankara Training and Research Hospital, Ankara, Turkey
| | - Nihat Yumuşak
- Department of Veterinary Pathology, Harran University, Şanlıurfa, Turkey
| | - Serkan Iltar
- Department of Orthopaedics and Traumatology, Ankara Training and Research Hospital, 06534, Ankara, Turkey
| | - Meliha Korkmaz
- Department of Nuclear Medicine, Ankara Training and Research Hospital, Ankara, Turkey
| | - Kadir Bahadır Alemdaroğlu
- Department of Orthopaedics and Traumatology, Ankara Training and Research Hospital, 06534, Ankara, Turkey
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Dilli D, Kılıç E, Yumuşak N, Beken S, Uçkan Çetinkaya D, Karabulut R, Zenciroğlu AL. Additive effect of mesenchymal stem cells and defibrotide in an arterial rat thrombosis model. ARCH ARGENT PEDIATR 2018; 115:249-256. [PMID: 28504490 DOI: 10.5546/aap.2017.eng.249] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/29/2016] [Indexed: 11/12/2022]
Abstract
BACKGROUND/AIM In this study, we aimed to investigate the additive effect of mesenchymal stem cells (MSC) and defibrotide (DFT) in a rat model of femoral arterial thrombosis. METHODS Thirty Sprague Dawley rats were included. An arterial thrombosis model by ferric chloride (FeCl3) was developed in the left femoral artery. The rats were equally assigned to 5 groups: Group 1-Sham-operated (without arterial injury); Group 2-Phosphate buffered saline (PBS) injected; Group 3-MSC; Group 4-DFT; Group 5-MSC + DFT. All had two intraperitoneal injections of 0.5 ml: the 1st injection was 4 h after the procedure and the 2nd one 48 h after the 1st injection. The rats were sacrificed 7 days after the 2nd injection. RESULTS Although the use of human bone marrow-derived (hBM) hBM-MSC or DFT alone enabled partial resolution of the thrombus, combining them resulted in near-complete resolution. Neovascularization was two-fold better in hBM-MSC + DFT treated rats (11.6 ± 2.4 channels) compared with the hBM-MSC (3.8 ± 2.7 channels) and DFT groups (5.5 ± 1.8 channels) (P < 0.0001 and P= 0.002, respectively). CONCLUSION The combined use of hBM-MSC and DFT in a rat model of arterial thrombosis showed additive effect resulting in near-complete resolution of the thrombus.
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Affiliation(s)
- Dilek Dilli
- Department of Neonatology, Dr Sami Ulus Maternity and Children Research and Training Hospital, Ankara, Turkey
| | - Emine Kılıç
- Department of Life Sciences, Hemosoft IT and Training Services, Technopolis of Hacettepe University, Ankara, Turkey.,PEDI-STEM Center for Stem Cell Research and Development, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Nihat Yumuşak
- Department of Veterinary Pathology, Harran University Faculty of Veterinary Medicine, Şanlıurfa, Turkey
| | - Serdar Beken
- Department of Neonatology, Dr Sami Ulus Maternity and Children Research and Training Hospital, Ankara, Turkey
| | - Duygu Uçkan Çetinkaya
- PEDI-STEM Center for Stem Cell Research and Development, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ramazan Karabulut
- Departments of Pediatric Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Ayşegu L Zenciroğlu
- Department of Neonatology, Dr Sami Ulus Maternity and Children Research and Training Hospital, Ankara, Turkey
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Çolakoğlu EÇ, Börkü K, Haydardedeoğlu AE, Alihosseini H, Şenel OO, Yumuşak N, Özen D, Baş B, Uğurlu L. Correlation between Endoscopic and Histopathological Findings in Dogs with Chronic Gastritis. J Vet Res 2017; 61:351-355. [PMID: 29978094 PMCID: PMC5894424 DOI: 10.1515/jvetres-2017-0046] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 08/25/2017] [Indexed: 01/07/2023] Open
Abstract
Introduction Chronic gastritis is a common diagnosis in dogs with signs of chronic vomiting. However, there is no data concerning endoscopic and histopathological agreement in dogs with chronic gastritis. Thus, a question should be raised whether taking gastroduodenal biopsies in dogs with chronic gastritis is necessary or not. Consequently, the purpose of the study was to compare the endoscopic and histopathological agreement in dogs with chronic gastritis. Material and Methods A total of 22 non-pregnant client-owned dogs with the signs of chronic gastritis were enrolled in this prospective study. Procedures including clinical examination, blood analysis, and diagnostic imaging were performed before anaesthesia. Biopsies obtained from gastroduodenal sites were histopathologically evaluated. A total of 110 gastroduodenal samples were examined. Results Sixty-eight samples had abnormal histopathology and endoscopy while 11 showed normal histopathological and endoscopic evidence. Conclusion The obtained data demonstrated that it is not necessary to take extra gastroduodenal biopsies in dogs with evidence of endoscopic gastroduodenitis. We also believe that further prospective studies, including cost and time effectiveness and more specific comparison between endoscopic appearance and histopathology, are necessary to make final recommendations regarding the need of using both procedures for definitive diagnosis.
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Affiliation(s)
- Ekrem Ç Çolakoğlu
- Department of Internal Medicine, Ankara University, 06110 Ankara, Turkey
| | - Kazım Börkü
- Department of Internal Medicine, Ankara University, 06110 Ankara, Turkey
| | - Ali E Haydardedeoğlu
- Department of Internal Medicine, Faculty of Veterinary Medicine, Aksaray University, 68100 Aksaray, Turkey
| | | | - Oytun O Şenel
- Department of Surgery, Ankara University, 06110 Ankara, Turkey
| | - Nihat Yumuşak
- Department of Pathology, Faculty of Veterinary Medicine, Harran University, 63000 Şanlıurfa, Turkey
| | - Doğukan Özen
- Department of Biostatistics, Ankara University, 06110 Ankara, Turkey
| | - Bülent Baş
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, 06110 Ankara, Turkey
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Aydoğan F, Tüzüner A, Ünlü I, Demirci Ş, Aydin E, Yumuşak N, Taştan E, Keskin MN, Samim EE. The use of glass ionomer cement in the reconstructıon of the dorsal L-strut: an experımental study on rabbıts. Laryngoscope 2014; 124:E303-8. [PMID: 24500785 DOI: 10.1002/lary.24637] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Revised: 01/24/2014] [Accepted: 01/31/2014] [Indexed: 11/12/2022]
Abstract
OBJECTIVES/HYPOTHESIS This experimental study in a rabbit model aimed to investigate the use of glass ionomer cement as a tissue adhesive on the dorsal L-strut. STUDY DESIGN Sixteen adult male New Zealand White rabbits were used. The rabbits were equally divided into two groups as the control and the study groups. METHODS The nasal septum was exposed through a superior approach. A graft was harvested preserving an L-strut cartilage. In the control group, a vertical incision was performed on the dorsal part of the L-strut to divide it into two cut ends, and the graft was sutured to the cut ends with 5-0 polydioxanone suture. In the study group, the reconstruction of the dorsal L-strut was made by fixing the graft to the cut ends with glass ionomer cement as the tissue adhesive. At 2 months, the rabbits were sacrificed. The nasal septum was removed for histopathological examination. RESULTS No foreign body giant cells or acute inflammation were determined in the rabbits. The study group had less pronounced chronic inflammation. Comparison of the groups revealed that parameters regarding vascularization, cartilage proliferation, and new cartilage cells were statistically significant different between the two groups (P = .010, P = .010, P = .028, respectively). More vascularization, cartilage proliferation, and new cartilage cells were seen in the study group. CONCLUSIONS Glass ionomer cement was effective for the reconstruction of the dorsal L-strut without any foreign body reaction, cartilage necrosis, or marked inflammation in rabbits, and it may be a potentially beneficial alternative to suture fixation.
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Affiliation(s)
- Filiz Aydoğan
- Department of Otorhinolaryngology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
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Ozmen E, Ozsoy SY, Donmez N, Ozsoy B, Yumuşak N. The protective effect of L-carnitine against hippocampal damage due to experimental formaldehyde intoxication in rats. Biotech Histochem 2013; 89:336-41. [PMID: 24279609 DOI: 10.3109/10520295.2013.855818] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We investigated the protective effects of L-carnitine on hippocampus tissue damage in rats during experimental formaldehyde (FA) intoxication. Male Wistar albino rats were assigned into four groups: (1) control (C), (2) formaldehyde (FA), (3) formaldehyde + 0.5 g/kg of L-carnitine (FA + 0.5 LC) (4) formaldehyde + 1 g/kg L-carnitine (FA + 1 LC). At the end of the 14 day trial period, animals were sacrificed by decapitation under anesthesia. The hippocampus tissue samples were extracted to measure MDA, GSH and SOD activity. Neuronal degeneration was assessed based on histopathological (hematoxylin and eosin) and immunohistochemical (anti-ubiquitin) examination. To detect oxidative stress, specimens were reacted with anti-Cu/Zn-SOD antibody. After administering L-carnitine with FA to the animals, the activities of SOD and GSH increased, but the levels of MDA decreased in hippocampus tissue. Neuronal degeneration was observed in the FA group. L-carnitine administration reduced neuronal degeneration and histological structure was similar to controls. After FA application, degenerated hippocampus neurons were stained with anti-ubiquitin and Cu/Zn-SOD antibodies; weakly positive staining was observed in L- carnitine-treated groups. L-carnitine may be useful for preventing oxidative damage in the hippocampus tissue due to formaldehyde intoxication.
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Affiliation(s)
- E Ozmen
- Department of Anatomy, Faculty of Veterinary Medicine, University of Mustafa Kemal , Hatay
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