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Aydin S, Kilinc F, Ugur K, Aydin MA, Yalcin MH, Kuloglu T, Kaya Tektemur N, Albayrak S, Emre E, Yardim M, Akkoc RF, Hancer S, Sahin İ, Cinar V, Akbulut T, Demircan S, Evren B, Gencer BT, Aksoy A, Yilmaz Bozoglan M, Aydemir İ, Aydin S. Effects of irisin and exercise on adropin and betatrophin in a new metabolic syndrome model. Biotech Histochem 2024; 99:21-32. [PMID: 37933453 DOI: 10.1080/10520295.2023.2276205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
Metabolic syndrome (MetS) is a prevalent public health problem. Uric acid (UA) is increased by MetS. We investigated whether administration of UA and 10% fructose (F) would accelerate MetS formation and we also determined the effects of irisin and exercise. We used seven groups of rats. Group 1 (control); group 2 (sham); group 3 (10% F); group 4 (1% UA); group 5 (2% UA); group 6 (10% F + 1% UA); and Group 7, (10% F + 2% UA). After induction of MetS (groups 3 -7), Group 3 was divided into three subgroups: 3A, no further treatment; 3B, irisin treatment; 3C, irisin treatment + exercise. Group 4, 1% UA, which was divided into three subgroups: 4A, no further treatment; 4B, irisin treatment; 4C, Irisin treatment + exercise. Group 5, 2% UA, which was divided into three subgroups: 5A, no further treatment; 5B, irisin treatment; 5C, irisin treatment + exercise. Group 6, 10% F + 1% UA, which was divided into three subgroups: 6A, no further treatment; 6B, irisin treatment; 6C, irisin treatment + exercise. Group 7, 10% F + 2% UA, which was divided into three subgroups: 7A, no further treatment; 7B, irisin treatment; 7C, irisin treatment + exercise., İrisin was administered 10 ng/kg irisin intraperitoneally on Monday, Wednesday, Friday, Sunday each week for 1 month. The exercise animals (in addition to irisin treatment) also were run on a treadmill for 45 min on Monday, Wednesday, Friday, Sunday each week for 1 month. The rats were sacrificed and samples of liver, heart, kidney, pancreas, skeletal muscles and blood were obtained. The amounts of adropin (ADR) and betatrophin in the tissue supernatant and blood were measured using an ELISA method. Immunohistochemistry was used to detect ADR and betatrophin expression in situ in tissue samples. The duration of these experiments varied from 3 and 10 weeks. The order of development of MetS was: group 7, 3 weeks; group 6, 4 weeks; group 5, 6 weeks; group 4, 7 weeks; group 3, 10 weeks. Kidney, liver, heart, pancreas and skeletal muscle tissues are sources of adropin and betatrophin. In these tissues and in the circulation, adropin was decreased significantly, while betatrophin was increased significantly due to MetS; irisin + exercise reversed this situation. We found that the best method for creating a MetS model was F + UA2 supplementation. Our method is rapid and simple. Irisin + exercise was best for preventing MetS.
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Affiliation(s)
- Suna Aydin
- Department of Cardiovascular Surgery, Fethi Sekin City Hospital, Elazig, Turkiye
- Department of Anatomy, School of Medicine, Firat University, Elazig, Turkiye
- Department of Histology and Embryology, School of Veterinary Medicine, Firat University, Elazig, Turkiye
| | - Faruk Kilinc
- Department of Internal Medicine (Endocrinology and Metabolism Diseases), School of Medicine, Firat University, Elazig, Turkiye
| | - Kader Ugur
- Department of Internal Medicine (Endocrinology and Metabolism Diseases), School of Medicine, Firat University, Elazig, Turkiye
| | | | - Mehmet Hanifi Yalcin
- Department of Histology and Embryology, School of Veterinary Medicine, Firat University, Elazig, Turkiye
| | - Tuncay Kuloglu
- Department of Histology and Embryology, School of Medicine, Firat University, Elazig, Turkiye
| | - Nalan Kaya Tektemur
- Department of Histology and Embryology, School of Medicine, Firat University, Elazig, Turkiye
| | - Serdal Albayrak
- Department of Brain and Nerve Surgery, Elazig Fethi Sekin City Hospital, Elazig, Turkiye
| | - Elif Emre
- Department of Anatomy, School of Medicine, Firat University, Elazig, Turkiye
| | - Meltem Yardim
- Department of Medical Biochemistry, Faculty of Sport Sciences, Yerkoy State Hospital, Yozgat, Turkiye
| | - Ramazan Fazil Akkoc
- Department of Anatomy, School of Medicine, Firat University, Elazig, Turkiye
| | - Serhat Hancer
- Department of Histology and Embryology, School of Medicine, Firat University, Elazig, Turkiye
| | - İbrahim Sahin
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Medical School, Firat University, Elazig, Turkiye
- Department of Medical Biology, Medical School, Erzincan Binali Yildirim University, Erzincan, Turkiye
| | - Vedat Cinar
- Department of Physical Education and Sports Teaching, Faculty of Sport Sciences, Firat University, Elazig, Turkey
| | - Taner Akbulut
- Department of Sports and Health, Faculty of Sport Sciences, Firat University, Elazig, Turkiye
| | - Selcuk Demircan
- Department of Intensive Care, Inonu University Hospital, Malatya, Turkiye
| | - Bahri Evren
- Department of Internal Medicine, School of Medicine, Inonu University, Malatya, Turkiye
| | - Berrin Tarakci Gencer
- Department of Histology and Embryology, School of Veterinary Medicine, Firat University, Elazig, Turkiye
| | - Aziz Aksoy
- Nature and Engineering Faculty, Malatya Turgut Ozal University, Malatya, Turkiye
| | - Merve Yilmaz Bozoglan
- Department of Medical Pharmacology, Medical School, Firat University, Elazig, Turkiye
| | - İsa Aydemir
- Department of Physical Education and Sports Teaching, Faculty of Sport Sciences, Firat University, Elazig, Turkey
| | - Suleyman Aydin
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Medical School, Firat University, Elazig, Turkiye
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Özsoy M, Yalçin S, Varlibaş A, Çifci A, Cesur S, Aksoy A, Berkem R. Determination of SARS-CoV-2 IgG antibody levels in hematology-oncology patients after COVID-19 vaccination. Eur Rev Med Pharmacol Sci 2024; 28:1624-1631. [PMID: 38436195 DOI: 10.26355/eurrev_202402_35492] [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: 03/05/2024]
Abstract
OBJECTIVE Cancer patients are among the high-risk groups where COVID-19 infection tends to be severe and can lead to increased mortality. Therefore, they are included in the priority groups for COVID-19 vaccination. This study aimed to compare the levels of SARS-CoV-2 immunoglobulin G (IgG) antibodies following two different COVID-19 vaccinations between hematology-oncology patients and healthcare personnel and to identify factors associated with these antibody levels. PATIENTS AND METHODS A prospective study was conducted with 91 hematology-oncology patients (cancer group) and 75 healthcare personnel (control group) from January 2020 to June 2023. The cancer and control groups comprised adults who had received a booster dose, with either a single dose of BNT162b2 or two doses of CoronaVac™ spaced one month apart, following their primary vaccination with two doses of either CoronaVac™ or BNT162b2. Four weeks after the administration of the booster dose, levels of SARS-CoV-2 IgG antibodies were assessed using an ELISA kit. Antibody levels above 50 AU/mL were accepted as signifying seropositivity. RESULTS The median SARS-CoV-2 IgG antibody level was lower in the cancer group compared to the control group (4,509 vs. 7,268, p = 0.004), while the rate of seroconversion was similar between the groups (97.8% vs. 100%, p = 0.564). In the cancer group, no association was found between SARS-CoV-2 IgG antibody levels and age, sex, comorbidity, type of malignancy, stage and duration, or type of vaccine. CONCLUSIONS In cancer patients, the seroconversion positivity rate was about 98%. However, antibody responses were still lower compared to the control group. No difference was detected in antibody levels among cancer patients based on the type of vaccine.
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Affiliation(s)
- M Özsoy
- Department of Infectious Diseases and Clinical Microbiology, Health Sciences University, Ankara Training and Research Hospital, Ankara, Turkey.
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Blachutzik F, Meier S, Weissner M, Schlattner S, Gori T, Ullrich H, Gaede L, Achenbach S, Möllmann H, Chitic B, Aksoy A, Nickenig G, Weferling M, Pons-Kühnemann J, Dörr O, Boeder N, Bayer M, Elsässer A, Hamm CW, Nef H. Coronary intravascular lithotripsy and rotational atherectomy for severely calcified stenosis: Results from the ROTA.shock trial. Catheter Cardiovasc Interv 2023; 102:823-833. [PMID: 37668088 DOI: 10.1002/ccd.30815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 06/07/2023] [Accepted: 08/14/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Severely calcified coronary lesions present a particular challenge for percutaneous coronary intervention. AIMS The aim of this randomized study was to determine whether coronary intravascular lithotripsy (IVL) is non-inferior to rotational atherectomy (RA) regarding minimal stent area (MSA). METHODS The randomized, prospective non-inferiority ROTA.shock trial enrolled 70 patients between July 2019 and November 2021. Patients were randomly (1:1) assigned to undergo either IVL or RA before percutaneous coronary intervention of severely calcified coronary lesions. Optical coherence tomography was performed at the end of the procedure for primary endpoint analysis. RESULTS The primary endpoint MSA was lower but non-inferior after IVL (mean: 6.10 mm2 , 95% confidence interval [95% CI]: 5.32-6.87 mm2 ) versus RA (6.60 mm2 , 95% CI: 5.66-7.54 mm2 ; difference in MSA: -0.50 mm2 , 95% CI: -1.52-0.52 mm2 ; non-inferiority margin: -1.60 mm2 ). Stent expansion was similar (RA: 0.83 ± 0.10 vs. IVL: 0.82 ± 0.11; p = 0.79). There were no significant differences regarding contrast media consumption (RA: 183.1 ± 68.8 vs. IVL: 163.3 ± 55.0 mL; p = 0.47), radiation dose (RA: 7269 ± 11288 vs. IVL: 5010 ± 4140 cGy cm2 ; p = 0.68), and procedure time (RA: 79.5 ± 34.5 vs. IVL: 66.0 ± 19.4 min; p = 0.18). CONCLUSION IVL is non-inferior regarding MSA and results in a similar stent expansion in a random comparison with RA. Procedure time, contrast volume, and dose-area product do not differ significantly.
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Affiliation(s)
- F Blachutzik
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
| | - S Meier
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
| | - M Weissner
- Kerckhoff-Klinik, Kardiologie, Bad Nauheim, Germany
| | - S Schlattner
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
| | - T Gori
- Kardiologie 1, Universitätsmedizin Mainz, Mainz, Germany
| | - H Ullrich
- Kardiologie 1, Universitätsmedizin Mainz, Mainz, Germany
| | - L Gaede
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - S Achenbach
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - H Möllmann
- St. Johannes-Hospital, Innere Medizin 1, Dortmund, Germany
| | - B Chitic
- St. Johannes-Hospital, Innere Medizin 1, Dortmund, Germany
| | - A Aksoy
- Medizinische Klinik 2, Universitätsklinikum Bonn, Bonn, Germany
| | - G Nickenig
- Medizinische Klinik 2, Universitätsklinikum Bonn, Bonn, Germany
| | - M Weferling
- Kerckhoff-Klinik, Kardiologie, Bad Nauheim, Germany
| | - J Pons-Kühnemann
- Institute for Medical Informatics, Justus Liebig University Giessen, Giessen, Germany
| | - O Dörr
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main Partner Site, Germany
| | - N Boeder
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
| | - M Bayer
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
| | - A Elsässer
- Klinik für Innere Medizin - Kardiologie, Universitätsklinikum Oldenburg, Oldenburg, Germany
| | - C W Hamm
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
- Kerckhoff-Klinik, Kardiologie, Bad Nauheim, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main Partner Site, Germany
| | - H Nef
- Medizinische Klinik 1, Justus Liebig Universität Giessen, Giessen, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main Partner Site, Germany
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Keskin C, Aksoy A, Kalyoncuoğlu E, Keleş A, İlik AA, Kömeç O, Yüzgüleç E, Akgün H, Alak SG, Tokur O. Effect of intracanal cryotherapy on the inflammatory cytokine, proteolytic enzyme levels and postoperative pain in teeth with asymptomatic apical periodontitis: A randomised clinical trial. Int Endod J 2023. [PMID: 37222468 DOI: 10.1111/iej.13937] [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: 01/31/2023] [Revised: 04/20/2023] [Accepted: 05/21/2023] [Indexed: 05/25/2023]
Abstract
AIM to investigate the changes in the biomarker levels related to inflammation and tissue destruction in the periapical exudate of mandibular premolar teeth with asymptomatic apical periodontitis after receiving intracanal cryotherapy, to compare cryotherapy and control groups in terms of analgesic intake, interappointment, and postoperative pain, and evaluate the correlation between biomarker levels and interappointment pain. METHODOLOGY Mandibular premolar teeth of 44 patients aged 18-35 years, diagnosed with asymptomatic apical periodontitis, were root canal treated in two visits (registered as NCT04798144). Baseline periapical exudate samples were obtained, and the patients were assigned to either control or intracanal cryotherapy group according to the final irrigation with distilled water either at room temperature or 2.5°C. The canals were dressed with calcium hydroxide. In the second visit, the calcium hydroxide was removed with passive ultrasonic irrigation, and the periapical exudate was sampled again. IL-1β, IL-2, IL-6, IL-8, TNF-α, PGE2 and MMP-8 levels were determined with ELISA. Postoperative pain levels were recorded for six days following both visits using a visual analogue scale. Data were analysed using t-test, Mann-Whitney U, and correlation tests. RESULTS There was a significant correlation between the pain scores reported after first visit and IL-1β and PGE2 levels (p < .05). IL-1β, IL-2, and IL-6 levels showed no significant difference in the cryotherapy group (p > .05), while they significantly increased in the control group (p < .05). There was a decrease in IL-8, TNF-α, PGE2 , and MMP-8 levels, however, the difference was not significant (p > .05). Pain scores were significantly lower in the cryotherapy group for the first three days (p < .05), except for 24th hours (p > .05). CONCLUSIONS The positive correlation between interappointment pain and IL-1β and PGE2 levels might indicate that these biomarker levels can be used to predict the severity of postoperative pain. Intracanal cryotherapy was effective in reducing postoperative pain in the short term in teeth with asymptomatic apical periodontitis. Cryotherapy prevented an increase in IL-1β, IL-2, and IL-6 levels compared to the control group.
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Affiliation(s)
- C Keskin
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - A Aksoy
- Department of Pharmacology & Toxicology, Ondokuz Mayis University, Faculty of Veterinary, Samsun, Turkey
| | - E Kalyoncuoğlu
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - A Keleş
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - A Arkan İlik
- Department of Endodontics, Faculty of Dentistry, Medipol University, Ankara, Turkey
| | - O Kömeç
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | | | - H Akgün
- Samsun Oral and Dental Health Hospital, Samsun, Turkey
| | - S G Alak
- Private Practice, İstanbul, Turkey
| | - O Tokur
- Department of Pharmacology & Toxicology, Ondokuz Mayis University, Faculty of Veterinary, Samsun, Turkey
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5
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Guler O, Oymak E, Yazici G, Akagunduz OO, Cetinayak O, Erpolat P, Aksoy A, Duzova M, Yildirim BA, Kurt M, Canyılmaz E, Akyurek S, Atalar B, Yavas G, Oksuz D, Saglam E, Celik OK, Cengiz M, Onal C. The Treatment Outcomes of Patients with Cervical Esophageal Carcinoma Undergoing Definitive Chemoradiotherapy: A Multi-Institutional Analysis TROD 01-005. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1027] [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: 11/26/2022]
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Al Zaidi M, Repges E, Jansen F, Tiyerili V, Zimmer S, Nickenig G, Aksoy A. Characterization of the mitochondrial unfolded protein response in human coronary artery endothelial cells. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.3029] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The unfolded protein response of the endoplasmic reticulum (UPRER) is highly activated in cardiovascular diseases and aims to restore homeostasis by improving protein folding. An analogue cytoprotective mitochondrial unfolded protein response (UPRMito) regulated by an orthologue of the activating transcription factor 5 (ATF5) was described in model organism c. elegans. However, in humans it is not clear if there is a distinct UPRMito, and if there is an activation of an UPRMito during stress induced by cardiovascular diseases. The endothelium is subjected to high levels of mitochondrial stress, e.g. in atherosclerosis.
Purpose
To provide a systematic characterization of the UPRMito in human coronary artery endothelial cells (HCAEC).
Methods and results
HCAEC were treated with Nicotinamide Riboside (NR), a NAD+ precursor that activates UPRMito without inducing cellular stress. NR treatment did not induce toxicity and improved cell viability at a concentration of 100μM NR. Quantitative PCR confirmed a dose-dependent upregulation of UPRMito markers. Additionally, we measured expression of ATF4, which is discussed to regulate an integrated stress response in mammals by activating both the UPRMito and UPRER. ATF4 upregulation upon NR treatment was more pronounced than ATF5 upregulation. Analysis of GTEX-Data showed that ATF5 is almost exclusively expressed in liver tissue, while ATF4 shows ubiquitous expression. Among 54 tissues, aortic tissue and coronary arterial tissue are among the five tissues with the highest ATF4 expression.
Analysis of RNA-seq-data of human carotid atherosclerosis revealed that the two transcription factors are differentially regulated. ATF4 is downregulated in unstable plaque, while ATF5 is upregulated. Moreover, ATF4 is in both conditions highly more abundant than ATF5. Accordingly, endothelial cells incubated under atherosclerotic conditions (oxLDL + high glucose) exhibited a ATF4 down- and ATF5 upregulation. Genes previously described to be involved in the UPRMito exhibited a similar expression pattern as ATF4.
To further elucidate these findings, we will perform transcriptomic analyses of HCAEC treated with atherosclerotic stimuli (IL-1β, oxLDL), UPRER inductors (Thapsigargin, Tunicamycin) and stressors of mitochondrial proteostasis (Oligomycin, MitoBloCK-6), to analyze, if ATF5- or ATF4-related pathways are dysregulated. Specific inhibitors and UPRMito activators will be used to investigate the significance of ATF4 and ATF5 on endothelial cell function (proliferation, migration, apoptosis, monocyte adhesion).
Conclusion
The UPRMito is dysregulated during the pathogenesis of atherosclerosis in HCAEC. Further findings are required to elucidate, if the UPRMito is activated separately and specifically by ATF5 or as part of an integrated cellular stress response by ATF4. A deeper understanding of these stress responses is crucial for the identification of novel therapeutic targets in atherosclerosis.
Funding Acknowledgement
Type of funding sources: Public hospital(s). Main funding source(s): University hospital Bonn
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Affiliation(s)
- M Al Zaidi
- University hospital Bonn , Bonn , Germany
| | - E Repges
- University hospital Bonn , Bonn , Germany
| | - F Jansen
- University hospital Bonn , Bonn , Germany
| | - V Tiyerili
- University hospital Bonn , Bonn , Germany
| | - S Zimmer
- University hospital Bonn , Bonn , Germany
| | - G Nickenig
- University hospital Bonn , Bonn , Germany
| | - A Aksoy
- University hospital Bonn , Bonn , Germany
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7
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Al Zaidi M, Repges E, Sommer-Weisel S, Jansen F, Zimmer S, Tiyerili V, Nickenig G, Aksoy A. Serum levels of the endoplasmic-reticulum-stress chaperone GRP78 identify patients with coronary artery disease and predict mortality. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1137] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Endoplasmic-reticulum-stress (ER Stress) and associated chaperones like the main ER-Stress moderator GRP78 (glucose-regulated-protein, 78kDa) are involved in the pathogenesis of coronary artery disease (CAD). In addition to their intracellular localization and effects, secretion and extracellular properties of chaperones, including GRP78, were recently described. However, a diagnostic or prognostic relevance of serum ER-chaperones in patients with CAD has not been established yet.
Purpose
To investigate the significance of serum GRP78 in patients undergoing coronary angiography for suspected CAD.
Methods
Serum concentration of GRP78 was measured by ELISA in 789 patients with indication for coronary angiography (both ACS and CCS). CAD was defined as >50% stenosis in any major coronary artery. Clinical endpoint was one-year all-cause mortality.
Results
Mean age was 70.8±11.9 years and 65% of patients were male. 192 (24%) patients presented with acute coronary syndrome (ACS). CAD was found in 72.4% of patients. Mean GRP78 serum concentration was 2492 ng/ml. Increased levels of GRP78 (> median) were associated with diabetes (29.9% vs. 23.1%, p=0.03), a higher BMI (28.9±7.1 kg/m2 vs. 27.0±6.0 kg/m2, p<0.0001) and chronic kidney disease (CKD: 23.3% vs. 17.1%, p=0.03). There was no difference regarding age or sex.
GRP78 levels were increased in patients with CAD when compared to patients without CAD (2640 ng/ml [95% CI: 2415–2864] vs. 2178 ng/ml [95% CI: 1893–2463], p=0.013, Fig A). Interestingly, GRP78 levels were lower in patients with ACS than in patients with CCS (2284 ng/ml [95% CI: 1944–2642] vs. 2822 [95% CI: 2531–3113], p=0.018, Fig B). To further elucidate these findings, we analyzed available proteomics of patients with hypertrophic cardiomyopathy undergoing septal ablation as a model for a planned myocardial infarction (PMI)1. Coronary sinus blood samples drawn 10 and 60 min after PMI showed a downregulation of GRP78 levels compared to baseline.
Finally, we assessed prognostic relevance of GRP78 in patients with CAD. Increased GRP78 levels were associated with lower one-year mortality (5.3% vs. 10.6% vs. p=0.016). Increased GRP78 levels were associated with reduced one-year mortality in both continuous (HR: 0.48 [95% CI: 0.25–0.92]) and categorial analyses stratified by median GRP78. After adjusting for age, sex, BMI, diabetes, CKD and ACS, GRP78 remained an independent predictor of one-year mortality (HR: 0.51 [0.26–0.96], p=0.039).
Conclusion
GRP78 serum levels are generally elevated in patients with CAD but downregulated during ACS. Reduced levels are associated with increased one-year mortality. These results support previous findings that GRP78 secretion is a protective mechanism in cardiovascular diseases. Further mechanistic studies are warranted to foster our understanding of the effects of extracellular GRP78 and to aid in the identification of modifying therapeutic targets.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): University hospital Bonn
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Affiliation(s)
- M Al Zaidi
- University hospital Bonn , Bonn , Germany
| | - E Repges
- University hospital Bonn , Bonn , Germany
| | | | - F Jansen
- University hospital Bonn , Bonn , Germany
| | - S Zimmer
- University hospital Bonn , Bonn , Germany
| | - V Tiyerili
- University hospital Bonn , Bonn , Germany
| | - G Nickenig
- University hospital Bonn , Bonn , Germany
| | - A Aksoy
- University hospital Bonn , Bonn , Germany
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Repges E, Al Zaidi M, Jansen F, Zimmer S, Tiyerlili V, Aksoy A. The endoplasmic reticulum (ER) chaperone GRP78 is secreted during ER Stress and alleviates endothelial cell inflammation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2938] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Glucose-Regulated Protein 78kD (GRP78) is a chaperone and the main regulator of the ER-stress response. Upon ER Stress, GRP78 activates the unfolded protein response (UPR), which aims to clear unfolded proteins and restore ER homeostasis. A prolonged activation of the UPR triggers inflammation, thus contributing to the progression of cardiovascular diseases. Recently, extracellular secretion of GRP78 was described. However, the pathophysiological relevance of secreted GRP78 in atherosclerosis and endothelial cell inflammation remains to be elucidated.
Aim
Aim of this study is to investigate the role of GRP78 secretion in endothelial cells.
Methods and results
First, we sought to investigate if vascular cells secrete GRP78 during ER Stress. Human coronary artery endothelial cells (HCAEC) were treated with the ER stress inductor tunicamycin for up to 48h. After ER Stress induction, Western Blot and ELISA experiments detected an increased intracellular GRP78 expression. Intriguingly, prolonged ER Stress also promoted extracellular secretion of GRP78. Proteomic analysis confirmed that after ER-Stress induction, GRP78 is one of the most highly upregulated extracellular proteins (2.43-fold). Co-incubation with Brefeldin A, an inhibitor of ER-Golgi protein transport, abolished extracellular secretion (Fig.1). Hence, ER-Stress-induced GRP78 secretion is an actively regulated process.
Next, the effect of GRP78 containing conditioned medium (CM) on HCAEC was analyzed. Treatment with GRP78 containing CM decreased GRP78 mRNA expression in target cells (0.35-fold vs. control [+BFA], p<0.0001). Furthermore, it increased viability (93.0% vs. 79.6%, p=0.017) and decreased formation of reactive oxygen species (0.78-fold). Moreover, expression of markers of vascular inflammation and ER Stress (e.g., NF-κB and CHOP) was decreased when compared to control CM with additional BFA treatment.
However, ER Stress induced by tunicamycin exhibits deleterious effects on donor cells and is therefore not feasible for in vivo usage. Thus, we utilized Bip protein inducer x (Bix), a recently described small-molecule activator of GRP78. Treatment with Bix also promoted expression of GRP78 and general UPR activation (e.g., ATF4, XBP1). Moreover, in contrast to tunicamycin, Bix treatment did not impair viability of HCAEC.
After treatment with Bix-induced CM, apoptosis (0.77-fold vs. 1.64-fold, p<0.0001) and expression of markers of vascular inflammation (e.g., Il-6) were significantly decreased compared to control CM. Furthermore, presence of GRP78 was able to promote proliferation and viability.
Conclusion
Endothelial ER Stress promotes GRP78 secretion. Presence of GRP78 in conditioned medium ameliorates subsequent ER Stress and endothelial inflammation, which play a critical role in atherogenesis. Modification of GRP78 secretion by Bix might be a feasible and innovative therapeutic option for vascular inflammation and endothelial regeneration.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- E Repges
- Heartcenter Bonn, University Hospital Bonn , Bonn , Germany
| | - M Al Zaidi
- Heartcenter Bonn, University Hospital Bonn , Bonn , Germany
| | - F Jansen
- Heartcenter Bonn, University Hospital Bonn , Bonn , Germany
| | - S Zimmer
- Heartcenter Bonn, University Hospital Bonn , Bonn , Germany
| | - V Tiyerlili
- St. Johannes Hospital, Klinik für Innere Medizin I , Dortmund , Germany
| | - A Aksoy
- Heartcenter Bonn, University Hospital Bonn , Bonn , Germany
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Al-Kassou B, Veulemans V, Shamekhi J, Maier O, Aksoy A, Zietzer A, Meertens M, Weber M, Sinning JM, Adam M, Zimmer S, Baldus S, Kelm M, Nickenig G, Sedaghat A. Optimal protamine-to-heparin dosing ratio for the prevention of bleeding complications in patients undergoing TAVR – a multicentre experience. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1583] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Despite major advances, transcatheter aortic valve replacement (TAVR) is associated with procedure-related vascular and bleeding complications, that have a significant impact on mortality. A recently published study has shown that heparin antagonization using protamine resulted in significantly lower rates of serious bleeding events in patients undergoing TAVR as compared to those without heparin reversal. However, the optimal protamine-to-heparin dosing ratio to prevent bleeding complications without increasing ischemic complications in patients undergoing TAVR is unknown. Accordingly, daily clinical practice varies between selective to routine administration of protamine in different dosing ratios.
Purpose
The aim of this observational multicentre study was to compare the safety and efficacy of two different protamine-to-heparin dosing ratios for the prevention of bleeding complications after TAVR.
Methods
The study included 1446 patients undergoing TAVR, of whom 623 (43.1%) received partial and 823 (56.9%) full heparin antagonization (0.4–0.6 mg versus 0.9–1.0 mg protamine/100 units of heparin). The indication for partial or full heparin antagonization was left to the discretion of the operator, who made the decision according to the patient's individual thrombotic and bleeding risk. The primary endpoint was a composite of 30-day mortality, life-threatening and major bleeding. Safety endpoints included stroke and myocardial infarction at 30 days.
Results
The overall study population had a mean age of 81.1±6.0 years; 47.9% were of female gender.
The baseline characteristics were well balanced between the two groups. Full antagonization of heparin resulted in significantly lower rates of the primary endpoint as compared to partial heparin reversal (5.6 vs. 10.4%, p<0.01), mainly driven by lower rates of life-threatening (0.5 vs 1.6%, p=0.05) and major bleeding (3.2 vs 7.5%, p<0.01). The incidence of major vascular complications was significantly lower in patients with full heparin reversal (3.5 vs 7.5%, p<0.01), as presented in Figure 1. Accordingly, the post-interventional drop in hemoglobin level and the need for red-blood-cell transfusion was lower in patients receiving full as compared to partial heparin reversal (1.5±1.2 vs 1.7±1.2 g/dl, p<0.01; 10.4 vs 15.9%, p<0.01, respectively). Regarding safety endpoints, no differences were observed in the incidence of stroke and myocardial infarction between the groups (2.2 vs 2.6%, p=0.73 and 0.2 vs 0.4%, p=0.64, respectively). Multivariate regression analyses revealed that full antagonization of heparin (OR: 0.43 [95% CI: 0.24–0.81], p<0.01) was independently associated with the primary end point
Conclusion
Full heparin antagonization resulted in significantly lower rates of life-threatening and major bleeding after TAVR as compared to partial heparin reversal. The occurrence of stroke and myocardial infarction was low and comparable between both groups.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation).
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Affiliation(s)
- B Al-Kassou
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - V Veulemans
- University Hospital Duesseldorf, Division of Cardiology , Duesseldorf , Germany
| | - J Shamekhi
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - O Maier
- University Hospital Duesseldorf, Division of Cardiology , Duesseldorf , Germany
| | - A Aksoy
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - A Zietzer
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - M Meertens
- University hospital Koln, Department of Cardiology, Heart Center , Cologne , Germany
| | - M Weber
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - J M Sinning
- St Vinzenz-Hospital, Department of Cardiology , Cologne , Germany
| | - M Adam
- University hospital Koln, Department of Cardiology, Heart Center , Cologne , Germany
| | - S Zimmer
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - S Baldus
- University hospital Koln, Department of Cardiology, Heart Center , Cologne , Germany
| | - M Kelm
- University Hospital Duesseldorf, Division of Cardiology , Duesseldorf , Germany
| | - G Nickenig
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
| | - A Sedaghat
- University Hospital Bonn, Department of Cardiology, Angiology and Pneumology , Bonn , Germany
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Karagoz ZK, Aydin S, Ugur K, Tigli A, Deniz R, Baykus Y, Sahin I, Yalcin MH, Yavuz A, Aksoy A, Aydin S. Molecular communication between Apelin-13, Apelin-36, Elabela, and nitric oxide in gestational diabetes mellitus. Eur Rev Med Pharmacol Sci 2022; 26:3289-3300. [PMID: 35587081 DOI: 10.26355/eurrev_202205_28748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Gestational diabetes mellitus (GDM) is a type of diabetes that affects from 3.8% to 6.9% of pregnancies worldwide, causing significant mortality and unfavorable obstetric outcomes, such as delivery trauma and macrosomia risk. The fundamental processes of this metabolic disorder that first appeared during pregnancy are still unknown. Tissue hormones, particularly adipokines, have aided in understanding the pathophysiology of numerous disorders in recent years. This study aims to determine if Apelin-13 (APLN-13), Apelin-36 (APLN-36), Elabela (ELA), and nitric oxide (NO) molecules have all a part in the pathophysiology of GDM. PATIENTS AND METHODS The study included 30 pregnant control women and 30 pregnant women who had been diagnosed with GDM in the second trimester and whose body mass index and age were compatible with each other. Blood samples were collected from 60 participants during the second trimester (30 control pregnant women and 30 GDM pregnant women) and postpartum (17 controls vs. 14 GDM). In these blood samples, the amounts of APLN-13, APLN-36, ELA, and NO were studied using the ELISA method. In addition, the participants' glucose, lipid profiles, and other parameters were obtained from the hospital record files. At postpartum, 29 pregnant women (13 control and 16 pregnant women with GDM) dropped out of the study without explanation. RESULTS In the second trimester and postpartum plasma of mothers with GDM, APLN-13, APLN-36, NO, and ELA molecules were found to be significantly higher (< 0.05), compared to those of the control mothers, while APLN-13, APLN-36, NO values were significantly lower (0.05). While APLN-13, APLN-36, NO amounts in mothers with GDM were positively correlated with glucose amounts, they were negatively correlated with ELA amounts. Similarly, the triglyceride amounts in mothers with GDM were positively correlated with APLN-13, APLN-36 and NO, while they were negatively correlated with the ELA amounts. Due to gestational diabetes, APLN-13, APLN-36, NO, glucose, and triglyceride increased, and ELA decreased. CONCLUSIONS It is predicted that the glucose increase in GDM is because Apelins reduce glucose transport to erythrocytes by inhibiting the sodium-dependent glucose transporter (SGLT) and that the increase in triglyceride and NO may be associated with high glucose levels in GDM. As a result, we believe that the above-mentioned chemicals may cause GDM Pathology by triggering one another.
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Affiliation(s)
- Z K Karagoz
- Department of Endocrinology and Metabolic Diseases, Department of Cardiovascular Surgery (Anatomy), Fethi Sekin City Hospital, Elazig, Turkey.
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Karagoz ZK, Aydin S, Aksoy A, Kalayci M, Ugur K, Kuloglu T, Cinar V, Yardim M, Aydin Y, Akbulut T, Yalcin MH, Sahin I, Uslu A, Akkoc RF, Aydin S. Basal blood concentrations of some orexigenic and anorexigenic hormones in obese and nonobese individuals according to blood groups. Eur Rev Med Pharmacol Sci 2022; 26:2818-2831. [PMID: 35503626 DOI: 10.26355/eurrev_202204_28612] [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: 06/14/2023]
Abstract
OBJECTIVE Obesity is a serious public health problem associated with excessive food intake. Regulation of food intake in highly organized organisms is under the control of a large number of orexigenic and anorexigenic molecules. Therefore, the main purpose of this study has been to determine the relationship between obesity and some of the circulating orexigenic and anorexigenic peptides that have a role in appetite control and to determine whether the concentrations of these molecules differ according to blood groups. PATIENTS AND METHODS The study included 400 individuals of whom 100 were obese women, 100 obese men, 100 healthy men and 100 healthy women. Obese women and men were divided into 4 groups, according to their blood groups. In the control group, healthy women and healthy men were similarly divided into 4 blood groups. Each blood group within the groups, therefore, had 25 participants. RESULTS When leptin, nesfatin-1, obestatin and neuropeptide-Y, ghrelin and galanin levels of the control group and obese participants were compared, regardless of blood groups, leptin, nesfatin-1, obestatin and neuropeptide-Y were significantly higher, whereas only the ghrelin levels were significantly lower in obese patients. When the amounts of these hormones were measured according to gender, the situation was similar. When leptin, nesfatin-1, obestatin and neuropeptide-Y values of the control and obese participants' blood groups were compared with each other; these hormones were high in all blood groups; however, leptin levels in A blood group, nesfatin-1 levels in AB and O blood group, obestatin levels in AB blood group, neuropeptide-Y levels in A, B, AB blood groups were significantly higher. When the ghrelin levels of the blood groups in the control group and obese participants were compared, it was only significantly lower in the AB blood group. The ghrelin levels in the other blood groups of the obese individuals were again low, but not significantly so. When the distribution of hormones according to gender was evaluated, a situation parallel to the above results was recorded. CONCLUSIONS Leptin, nesfatin-1, obestatin and neuropeptide-Y and galanin levels of obese individuals were significantly higher than the control values, whereas the ghrelin values were significantly lower regardless of blood groups. Also, these hormones in blood partly varied with ABO blood groups. These different concentrations of hormones in ABO blood groups might be related with stimulation or suppression of appetite in human. However, further studies in other ethnic groups are needed to confirm these results.
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Affiliation(s)
- Z K Karagoz
- Department of Endocrinology and Metabolic Diseases, Fethi Sekin City Hospital, Elazig, Turkey.
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12
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Ugur K, Erman F, Turkoglu S, Aydin Y, Aksoy A, Lale A, Karagöz ZK, Ugur I, Akkoc RF, Yalniz M. Asprosin, visfatin and subfatin as new biomarkers of obesity and metabolic syndrome. Eur Rev Med Pharmacol Sci 2022; 26:2124-2133. [PMID: 35363362 DOI: 10.26355/eurrev_202203_28360] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Metabolic syndrome (MetS) and obesity are important public health problems associated with adipose tissue mass. Asprosin, visfatin, and subfatin are new members of which fate in MetS and obesity has not been fully revealed yet. Thus, this study was to investigate the association between asprosin, visfatin, subfatin, and biochemical values, demographic data, and body composition measurement values in MetS patients with and without obesity. PATIENTS AND METHODS Blood samples were taken from a total of 90 people, including 31 MetS patients with obesity, 29 MetS patients without obesity, and 30 healthy (control). Asprosin, visfatin, and subfatin were studied by the ELISA method. RESULTS There was a negative correlation between asprosin and Body Mass Index (BMI) in the MetS + Obese group. The correlations between asprosin and urea and fasting insulin (FI) levels in the MetS group were positive and statistically significant (p < 0.05). While there was a statistically significant negative correlation (p < 0.05) between visfatin and BMI in the MetS + Obese group, the correlation with waist circumference in the MetS + Obese and MetS groups was statistically significant and negative (p < 0.05). There was a statistically significant negative relationship (p < 0.05) between aspartate aminotransferase value and visfatin. The results between visfatin values and asprosin and subfatin in all groups were significant (p < 0.05). CONCLUSIONS There is a direct relationship between circulating amounts of asprosin, visfatin, and subfatin hormones and age, weight, height, diastolic blood pressure, high-density lipoprotein-cholesterol, aspartate aminotransferase, alanine transaminase, and creatinine. Therefore, asprosin, visfatin, and subfatin hormones are the new biomarkers of metabolic turbulence.
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Affiliation(s)
- K Ugur
- Department of Internal Medicine (Endocrinology and Metabolism Diseases), Faculty of Medicine, Fırat University, Elazig, Turkey.
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Aksoy A, Varoglu A, Onalan E, Tektemur A, Artas G. Research Article siRNA-mediated mesothelin silencing for treatment of mesothelioma. Genet Mol Res 2022. [DOI: 10.4238/gmr18955] [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]
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14
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Taldybay A, Aidarbayeva D, Aksoy A, Jenis J, Oxikbayev B. Prospects of studying and using Saussurea elegans Ledeb. in the foothills of the Zhetysu Alatau. ijmph 2021. [DOI: 10.26577/ijbch.2021.v14.i2.017] [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]
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15
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Al Zaidi M, Aksoy A, Repges E, Becher MU, Mueller C, Oldenburg J, Zimmer S, Nickenig G, Tiyerili V. Vitamin K epoxide reductase complex subunit 1-like 1 (VKORC1L1) inhibition induces a proliferative and pro-inflammatory vascular smooth muscle cell phenotype. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3348] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Vitamin K antagonists (VKA) like Warfarin are known to promote adverse cardiovascular remodelling. Contrarily, vitamin K supplementation has been discussed to decelerate cardiovascular disease. The recently described VKOR-isoenzyme Vitamin K epoxide reductase complex subunit 1-like 1 (VKORC1L1) is involved in vitamin K maintenance and exerts antioxidant properties. In this study, we sought to investigate the role of VKORC1L1 in neointima formation and on vascular smooth muscle cell (VSMC) function.
Methods and results
Treatment of wild-type mice with Warfarin increased maladaptive neointima formation after carotid artery injury. This was accompanied by reduced vascular mRNA expression of VKORC1L1.
In vitro, Warfarin was found to reduce VKORC1L1 mRNA expression in VSMC. VKORC1L1 downregulation by siRNA promoted viability, migration and formation of reactive oxygen species. VKORC1L1 knockdown further increased expression of key markers of vascular inflammation (NFκB, IL-6). Additionally, downregulation of the endoplasmic reticulum (ER) membrane resident VKORC1L1 increased expression of the main ER Stress moderator, glucose-regulated protein 78 kDa (GRP78). Moreover, treatment with the ER Stress inducer Tunicamycin promoted VKORC1L1, but not VKORC1 expression.
Finally, we sought to investigate, if treatment with vitamin K can mediate the protective properties of VKORC1L1. Thus, we examined effects of menaquinone-7 (MK7) on VSMC phenotype switch. MK7 treatment dose-dependently alleviated PDGF-induced proliferation and migration. In addition, we detected a reduction in expression of inflammatory and ER Stress markers.
Conclusion
VKA-induced neointima formation is associated with reduced vascular VKORC1L1 expression. VKORC1L1 inhibition contributes to an adverse VSMC phenotype while MK7 restores VSMC function. Thus, MK7 supplementation might be a feasible therapeutic option to modulate vitamin K- and VKORC1L1-mediated vasculoprotection.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Al Zaidi
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - A Aksoy
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - E Repges
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - M U Becher
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - C Mueller
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - J Oldenburg
- University Hospital Bonn, Institute of Experimental Haematology and Transfusion Medicine (IHT), Bonn, Germany
| | - S Zimmer
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - G Nickenig
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - V Tiyerili
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
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Erol C, Basoglu T, Sakin A, Ozden E, Cubuk D, Yumuk P, Dogan M, Oksuzoglu B, Yildirim H, Oner I, Karakurt Eryilmaz M, Dulgar O, Turkmen Bekmez E, Dogan N, Ozen M, Gurler F, Paksoy N, Aksoy A, Hizal M, Sendur M. 1405P Efficacy and safety of perioperative FLOT (5-FU, LV, oxaliplatin, docetaxel) chemotherapy in gastric and gastroesophageal junction adenocarcinoma: Real-life data from Turkish oncology group. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1514] [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: 11/26/2022] Open
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Aldibekova A, Sultanova B, Aksoy A, Kurmanbayeva M. Comparative study of root, stem, and leaf anatomy of young Sogdian ash trees (Fraxinus sogdiana Bunge) growing in river valleys of the Sharyn State National Park. ijbch 2021. [DOI: 10.26577/ijbch.2021.v14.i1.08] [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]
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Oruc Y, Aydin S, Akkoc RF, Aydin S, Gul FC, Ugur K, Sahin İ, Hanbeyoglu O, Kilic SS, Aksoy A. Assessment of the frequency and biochemical parameters of conjunctivitis in COVID-19 and other viral and bacterial conditions. Turkish Journal of Biochemistry 2020; 45:443-449. [DOI: 10.1515/tjb-2020-0232] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Abstract
Objectives
We compared the laboratory and clinical symptoms of coronavirus disease 2019 (COVID-19), other viral (beside COVID-19), and bacterial conjunctivitis patients with the values of controls.
Methods
Twenty COVID-19, 15 other viral, 15 bacterial patients, and 15 control group were included in the study. COVID-19 was diagnosed with the real time reverse transcription–polymerase chain reaction while the indirect immunofluorescent antibody test was used in the detection of other viral agents. Bacterial agents were determined with the detection of the agent. The ophthalmologic examination of all cases was carried out by direct penlight, and the anterior segment evaluation was performed. The laboratory findings of all cases included in the study were obtained from the hospital records.
Results
It was determined that 5% conjunctivitis and 5% diplopia developed in patients diagnosed with COVID-19, 20% conjunctivitis developed in patients due to other viral agents, and 66.6% conjunctivitis developed in patients due to bacterial agents.
Conclusion
The incidence of conjunctivitis in COVID-19 patients was lower than in other viral and bacterial groups. Neutrophil/lymphocyte ratio and C-reactive protein come to the forefront as precious parameters with high specificity and sensitivity that might be useful to distinguish these diseases.
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Affiliation(s)
- Yavuz Oruc
- Department of Ophthalmology , Health Sciences University, Elazig Fethi Sekin City Hospital , 23280 , Elazig , Turkey
| | - Suleyman Aydin
- Department of Medical Biochemistry and Clinical Biochemistry , Firat University, Medical School, Firat Hormones Research Group , 23119 , Elazig , Turkey
| | - Ramazan Fazil Akkoc
- Department of Anatomy , Firat University, Medical School , 23119 , Elazig , Turkey
| | - Suna Aydin
- Department of Cardiovascular Surgery , Elazig Fethi Sekin City Hospital , 23280 , Elazig , Turkey
| | - Fatih Cem Gul
- Department of Ophthalmology , Health Sciences University, Elazig Fethi Sekin City Hospital , 23280 , Elazig , Turkey
| | - Kader Ugur
- Department of Endocrinology and Metabolism Disease , Firat University, Medical School , 23119 , Elazig , Turkey
| | - İbrahim Sahin
- Department of Medical Biochemistry and Clinical Biochemistry , Firat University, Medical School, Firat Hormones Research Group , 23119 , Elazig , Turkey
- Department of Medical Biology , Erzincan Binali Yildirim University, Medical School , 24100 , Erzincan , Turkey
| | - Onur Hanbeyoglu
- Department of Intensive Care , Elazig Fethi Sekin City Hospital , 23280 , Elazig , Turkey
| | - Suleyman Sirri Kilic
- Health Sciences University, Samsun Education and Research Hospital, Infection and Clinical Microbiology Clinic , 55090 , Samsun , Turkey
| | - Aziz Aksoy
- Department of Bioengineering , Malatya Turgut Ozal University, Health School , 44000 , Malatya , Turkey
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Öz Tunçer G, Sahin I, Akça Ü, Aksoy A. REGISTRIES, CARE, QUALITY OF LIFE, MANAGEMENT OF NMD. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.331] [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: 10/23/2022]
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Aksoy A, Colak S, Yagiz B, Seniz BN, Omma A, Yildiz Y, Atas N, Ilgin C, Sari A, Erden A, Karadag O, Dalkiliç E, Bolca N, Onur MN, Ergelen R, Direskeneli H, Alibaz-Oner F. THU0289 PREDICTORS AND SEVERITY OF POST-THROMBOTIC SYNDROME IN VASCULAR BEHÇET’S DISEASE: RETROSPECTIVE MULTICENTER STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Postthrombotic syndrome(PTS) defines chronic manifestations of venous insufficiency following deep vein thrombosis(DVT).It is the most frequent and disabling complication of DVT.Objectives:Aim of the study is to describe clinical characteristics and predictors of PTS,severe PTS among Behçet’s disease(BD)patients with known low extremity DVT.Also,to depict venous Doppler ultrasonography(US)findings and its association with the clinical characteristic and treatments.Methods:This retrospective multicenter study included 205(166men,39women;mean age 39±9.5 years)BD patients with DVT history.The Villalta scale was used to assess the presence and severity of PTS.Doppler US of bilateral legs are performed within 1 week of clinical evaluation.Total number of vessels with reflux,thrombi,recanalization and collaterals were calculated and presented as scores.Results:Of 205 BD patients with known DVT history; 127(62%) had PTS and 18% had severe PTS diagnosed by Villalta scale.(Table 1)Table 1.Demographic and Clinical Characteristics of PatientsEntire Study Population (n:205)PTS present (n:127)PTS absent (n:78)P valueSex(male,%)166,81%101,79.5%65,83.3%.584History of smoking,%105,52%64,51.2%41,53.2%.895BMI(n:198)26.2±4.626.7±525.6±3.8.123Disease duration,years9(5-15)10(5-16)8(5-13).205DVT following time years6(3-11)7(3-11.5)5(3-9).179Current age39±9.540.5±9.636.8±8.8.012Number of vascular events1(1-2)1(1-2)1(1-2).723VeinesQoL total82±16.375.8±1492.2±14.6<.001VeinesQoL symptom37.5±934.4±8.342.6±7.7<.001Doppler Findingsİliofemoral thrombi41,26.5%32,35%9,17%.014Bilateral involvement62,43.4%45,49%17,33%.080All median values presented with interquartileranges(IQR)Table 2 summarize multivariate logistic regression analyses for the risk of having PTS-moderate/severePTS.Table 2.Multivariate Regression Analysis of presence of PTSOdds Ratio(with 95%CI)PCurrent age1.05(1.01-1.10).048BSAS1.06(1.04-1.10).000Bilateral Doppler USG involvement2.81(1.18-6.67).019İliofemoral thrombi2.74(1.02-7.38).045Moderate/severe PTSOdds RatiopBody mass index1.09(1.001-1.19).048IS0.10 (0.02-0.05).005Severe PTS patients had increased reflux(p=.027) compared to mild group and decreased recanalization scores(p=.013)compared to moderate group(Figure1)Patients treated with AC+IS had increased recanalization(p:.078),collateral scores compared patients treated with only ISs(p=.004)(Figure2)Conclusion:After an acuteDVT,BD patients faced with high risk of having PTS,severe PTS.ISs decreases the risk of having PTS.Our results also suggest that AC treatment may decrease severity of PTS by increasing recanalization of thrombi.Figure 1.US scores for PTS absent and present group Reflux score(p=.054) and thrombosis scores(p=.02)Figure 2.US scores for treatment groupsReferences:Disclosure of Interests:None declared
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Işık H, Topalcengiz Z, Güner S, Aksoy A. Generic and Shiga toxin-producing Escherichia coli (O157:H7) contamination of lettuce and radish microgreens grown in peat moss and perlite. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.107079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Aksoy A, El Kahlout KEM, Yardimci H. Comparative Evaluation of the Effects of Binzalkonium Chloride, Iodine, Gluteraldehyde and Hydrogen Peroxide Disinfectants against Avian Salmonellae Focusing on Genotypic Resistance Pattern of the Salmonellae Serotypes toward Benzalkonium Chloride. Braz J Poult Sci 2020. [DOI: 10.1590/1806-9061-2019-1055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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23
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Aksoy A, Yayıcı Köken Ö, Çavdarlı B, Talim B, Yüksel D. EP.25A limb girdle muscular dystrophy phenotype with mutations in ISPD and TTN. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.155] [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: 11/15/2022]
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24
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Aksoy A, Salazar C, Becher UM, Jansen F, Tiyerili V, Zimmer S, Grube E, Sinning JM, Nickenig G, Gonzalo N, Escaned J, Werner N. P973Intravascular lithotripsy for lesion preparation in calcified coronary lesions: a prospective, observational, two-center registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0567] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Intravascular coronary lithotripsy (IVL) is a novel alternative treatment for heavily calcified lesions. This study sought to determine the strategy success and safety of IVL on calcified lesions in an all-comers cohort of patients.
Methods
Patients with moderate and severely calcified coronary lesions were screened in two centers in Spain and Germany starting April 2018. Until February 2019, 61 patients with 67 lesions were eligible for IVL. Patients were assigned to the following groups: A) Primary IVL therapy for patients with circumferential calcified de-novo coronary lesions (n=32), B) Secondary IVL therapy for patients with moderate or severe calcified coronary lesions in which conventional non-compliant balloon dilatation failed (n=18) and C) Tertiary IVL therapy in patients with in-stent stenosis due to stent underexpansion after previous stenting (n=17). Primary endpoint was strategy success and safety outcome. Strategy success was defined as successful stent delivery and expansion with attainment of <20% in-stent residual stenosis of the target lesion. Safety outcome were procedural complication, defined as coronary dissection, slow or no-reflow phenomenon, new coronary thrombus formation during PCI, abrupt vessel closure and device failure (inability to place the balloon, malfunction, or burst) and in hospital MACE.
Results
61 patients with 67 calcified lesions were treated with IVL. Mean diameter of calcified stenosis on quantitative coronary angiography was 72.02±13.8% at baseline and decreased to 17.7±15.84% (p-value: <0.01) after IVL with an acute gain of 1.9±0.63 mm. Mean minimal lumen diameter was 1.0±0.5 mm at baseline and increased after IVL to 2.9±0.6 mm. The overall average of applied pulses was 63±22. The primary endpoint of strategy success was reached overall in 85.2% of patients. 4 type b dissections (3 in group A, 1 in group B) were observed without further sequelae. There were no in-hospital MACE. In one patient (1.6%) non-ischemia driven target lesion failure was observed in routine follow up coronary angiography and was in need for revascularization. According to the subgroups, strategy success in primary IVL treatment (group A) and secondary IVL treatment (group B) was reached in 81.3% and 83.3% of cases, respectively. In tertiary IVL therapy (group C), the primary study endpoint was reached in 64.7% of cases. Device delivery and IVL treatment of target lesion could be performed in all lesions without vessel complications. 7 IVL balloons ruptured during treatment without any sequelae. Rupture was observed in most cases after repositioning of the balloon within the calcified lesion.
Conclusions
IVL provides a valid strategy for lesion preparation in severely calcified coronary lesions, with high success rate, and low procedural complication and MACE rates. Longitudinal studies will confirm if these favourable initial results of IVL-supported PCI are followed by good long-term results.
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Affiliation(s)
- A Aksoy
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - C Salazar
- Hospital Clinic San Carlos, Universidad Complutense, Madrid, Spain
| | - U M Becher
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - F Jansen
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - V Tiyerili
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - S Zimmer
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - E Grube
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - J M Sinning
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - G Nickenig
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
| | - N Gonzalo
- Hospital Clinic San Carlos, Universidad Complutense, Madrid, Spain
| | - J Escaned
- Hospital Clinic San Carlos, Universidad Complutense, Madrid, Spain
| | - N Werner
- University Hospital Bonn, Dept. of Internal Medicine II; Cardiology, Pulmonology, Angiology, Bonn, Germany
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Aydin S, Kuloglu T, Aydin Y, Yalcin MH, Ugur K, Albayrak S, Aksoy A, Sahin I, Dagli AF, Akkoc RF, Aydin S. Effects of iloprost and sildenafil treatment on elabela, apelin-13, nitric oxide, and total antioxidant and total oxidant status in experimental enzyme-positive acute coronary syndrome in rats. Biotech Histochem 2019; 95:145-151. [PMID: 31429306 DOI: 10.1080/10520295.2019.1653497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Despite significant advances in medicine, mortality due to cardiovascular disease is not yet preventable. We investigated the amounts of elabela (ELA) and apelin, synthesized by cardiomyocytes, and changes of these compounds in cardiac tissue and circulation after administration of iloprost (ILO) and sildenafil (SIL) in rats with induced myocardial ischemia (MI). We also investigated a connection with circulating troponin-I, creatine kinase (CK), creatine kinase-myocardial band (CK-MB) and nitric oxide (NO), and total anti-oxidant (TAS)/total oxidant status (TOS). We established eight study groups of five rats each. Group 1, sham, was given only physiologic serum; group 2, ILO; group 3, SIL; group 4, ILO + SIL; group 5, MI; group 6, MI + ILO; group 7, MI + SIL; group 8, MI + ILO + SIL. Troponin-I, CK, CK-MB and TAS-TOS were investigated using an autoanalyzer. NO, ELA and apelin were analyzed by ELISA. Tissue apelin and ELA expressions and localizations were determined by immunohistochemistry. The MI group compared to the control (sham) group showed that ELA, apelin, troponin-I, CK, CK-MB, NO and TOS levels were elevated significantly. Concentrations of these factors increased in MI, but decreased after ILO and SIL administration. The largest decrease of TOS was identified in the ILO + SIL group. ELA and apelin may be novel indicators of MI and administration of ILO and SIL, individually or together, may be useful for treating MI.
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Affiliation(s)
- S Aydin
- Department of Cardiovascular Surgery, Fethi Sekin City Hospital, Elazig, Turkey.,Department of Anatomy, School of Medicine, Firat University, Elazig, Turkey
| | - T Kuloglu
- Department of Histology and Embryology, School of Medicine, Firat University, Elazig, Turkey
| | - Y Aydin
- Department of Internal Medicine, School of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - M H Yalcin
- Department of Histology and Embryology, School of Veterinary Medicine, Firat University, Elazig, Turkey
| | - K Ugur
- Department of Endocrine and Metabolism Diseases, School of Medicine, Firat University, Elazig, Turkey
| | - S Albayrak
- Department of Brain Surgery, Elazig Education and Research Hospital, Health Science University, Elazig, Turkey
| | - A Aksoy
- Department of Nutrition and Dietetics, Bitlis Eren University, Bitlis, Turkey
| | - I Sahin
- Department of Medical Biology, School of Medicine, Erzincan Binali Yildirim University, Erzincan, Turkey.,Department of Medical Biochemistry and Clinical Biochemistry, (Firat Hormones Research Group), School of Medicine, Firat University, Elazig, Turkey
| | - A F Dagli
- Department of Pathology, School of Medicine, Firat University, Elazig, Turkey
| | - R F Akkoc
- Department of Anatomy, School of Medicine, Firat University, Elazig, Turkey
| | - S Aydin
- Department of Medical Biochemistry and Clinical Biochemistry, (Firat Hormones Research Group), School of Medicine, Firat University, Elazig, Turkey
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Baş B, Aksoy A, Atmaca E, Öz AA, Kaya Ö, Kazan D, Yılmaz E, Kütük N. Effect of occlusal splint on interleukin 6, malondialdehyde and 8-hydroxydeoxyguanosine levels in the synovial fluid of patients with temporomandibular disorders. Int J Oral Maxillofac Surg 2019; 48:1558-1563. [PMID: 31109746 DOI: 10.1016/j.ijom.2019.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/27/2019] [Accepted: 04/26/2019] [Indexed: 10/26/2022]
Abstract
The actual role of splint therapy in preventing excessive loading of the temporomandibular joint (TMJ) is still debated. Lower intra-articular pressure levels have been measured in patients wearing occlusal splints, which may also reduce oxidative stress in the articular spaces. The aim of this study was to determine whether splint therapy reduces oxidative stress and inflammation in TMJ internal derangement patients by measuring interleukin 6 (IL-6), malondialdehyde (MDA), and 8-hydroxydeoxyguanosine (8-OHdG) levels in the synovial fluid (SF). Twenty-four patients with a temporomandibular disorder (TMD) were included in the study. TMJ SF samples were obtained prior to arthrocentesis. Twelve patients used a 2-mm hard acrylic, maxillary stabilization-type splint for 3 months after arthrocentesis. Twelve patients had no treatment after the SF aspiration. Second SF samples were obtained from all patients at 3 months post arthrocentesis. IL-6, MDA, and 8-OHdG levels in the samples were evaluated. All patients showed a significant symptomatic improvement after treatment (P < 0.005). No statistical correlation was found between the two groups concerning pre-treatment and 3-month SF levels of MDA, 8-OHdG, and IL-6. Although splint therapy was found to be successful in eliminating clinical symptoms of TMD, the results showed no beneficial effect on inflammation and oxidative stress markers in the synovial fluid.
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Affiliation(s)
- B Baş
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
| | - A Aksoy
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - E Atmaca
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - A A Öz
- Department of Orthodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
| | - Ö Kaya
- Private Dental Clinic, Izmir, Turkey
| | - D Kazan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
| | - E Yılmaz
- Private Dental Clinic, Samsun, Turkey
| | - N Kütük
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
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Ozturk A, Celik S, Kodaz H, Yildiz I, Ocak A, Hacibekiroglu I, Bayoglu I, Ercelep O, Ekinci A, Menekse S, Gumusay O, Oven B, Aldemir M, Geredeli C, Baykara M, Uysal M, Sevinc A, Aksoy A, Ulas A, Inanc M, Tanriverdi O, Avci N, Turan N, Gumus M. P3.01-33 EGFR Mutation in Patients with NSCLC and Its Relationship Between Survival and Clinicopathological Features: An Update Analysis. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1593] [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: 11/28/2022]
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Aksoy A, Köken Ö, Özyürek H, Talim B. A rare form of congenital muscle disorders; megakonial congenital muscular dystrophy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.073] [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: 10/18/2022]
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29
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Jehle J, Mueller C, Aksoy A, Zimmer S, Nickenig G, Tiyerili V. P5161Deletion of multidrug resistance-associated protein 1 improves endothelial function and attenuates atherosclerosis in MRP1−/− LDL−/− double knockout mice. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5161] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Seber S, Turkmen E, Harputoğlu H, Yeşil H, Arpacι E, Menekşe S, Pilancι K, Oruç Z, Taskoylu BY, Gumusay O, Aksoy A, Karaagac M, Ozarslan E, Yetisyigit T. Central nervous system metastatic epithelial ovarian cancer. Clinical parameters and prognostic factors: a multicenter study of Anatolian Society of Medical Oncology. EUR J GYNAECOL ONCOL 2017; 38:227-231. [PMID: 29953785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
UNLABELLED Central nervous system (CNS) metastasis is a rare event in the course of late stage epithelial ovarian cancer (EOC); however its incidence is increasing in parallel with prolonged survival of patients. OBJECTIVE The authors assessed the clinical parameters and potential prognostic features in patients with CNS metastatic disease. MATERIALS AND METHODS Clinical data of the 33 patients from the participating centers were retrospectively collected and analyzed. Median age at the time of CNS metastasis was 57 years. Median time from the diagnosis of primary EOC until CNS metastatic disease was 22 months. Nearly half (45.5%) of the patients had single CNS metastatic lesions and all patients in the study group except two received radiotherapy as palliative treatment. Median overall survival (OS) from the time of CNS metastasis was 15 months (0-66). At univariate analysis only number of brain metastatic lesions (p = 0.001) and presence of extracranial disease (p = 0.004) were strongly associated with OS whereas multimodal treatment, size of metastatic lesions, platinum sensitivity, age, grade, and disease stage at presentation were not. Development of CNS metastasis carries a poor prognosis, however patients with single metastatic lesions and only intracranial metastatic disease can have prolonged survival after appropriate palliative management of their disease.
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31
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Çiftci A, Onuk EE, Çiftci G, Fındık A, Söğüt MÜ, Didinen BI, Aksoy A, Üstünakın K, Gülhan T, Balta F, Altun S. Development and validation of glycoprotein-based native-subunit vaccine for fish against Aeromonas hydrophila. J Fish Dis 2016; 39:981-992. [PMID: 27144782 DOI: 10.1111/jfd.12499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/28/2016] [Accepted: 03/29/2016] [Indexed: 06/05/2023]
Abstract
Aeromonas hydrophila is known to be causative agent of an infection named as Bacterial haemorrhagic septicaemia or red pest in freshwater fish. The aim of this study was to develop and validate the glycoprotein-based fish vaccine against Aeromonas hydrophila. For this aim, after identification and characterization of A. hydrophila isolates from fish farms, one A. hydrophila isolate was selected as vaccine strain. Antigenic glycoproteins of this vaccine strain were determined by Western blotting and glycan detection kit. The connection types of these glycoproteins were examined by glycoprotein differentiation kit. Two glycoproteins, molecular weights of 19 and 38 kDa, with SNA connection type were selected for use in vaccination trials. After their purification by SNA-specific lectin and size-exclusion chromatography, protection studies with purified proteins were performed. For challenge trials, four experimental fish groups were designated: Group I (with montanide), Group II (with montanide and ginseng), Group III [with Al(OH)3 ] and Group IV [with Al(OH)3 and ginseng]. The survival ratings of fish were determined, and protection was calculated as 21.56%, 29.41%, 69.83% and 78.88% in groups I, II, III and IV, respectively. In conclusion, A. hydrophila glycoproteins with Al(OH)3 and ginseng could be used as a safe and effective vaccine for fish.
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Affiliation(s)
- A Çiftci
- Department of Microbiology, Faculty of Veterinary Medicine, University of Ondokuz Mayıs, Samsun, Turkey
| | - E E Onuk
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, University of Ondokuz Mayıs, Samsun, Turkey
| | - G Çiftci
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Ondokuz Mayıs, Samsun, Turkey
| | - A Fındık
- Department of Microbiology, Faculty of Veterinary Medicine, University of Ondokuz Mayıs, Samsun, Turkey
| | - M Ü Söğüt
- High School of Health, University of Ondokuz Mayıs, Samsun, Turkey
| | - B I Didinen
- Egirdir Fisheries Faculty, Suleyman Demirel University, Egirdir, Isparta, Turkey
| | - A Aksoy
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ondokuz Mayıs, Samsun, Turkey
| | - K Üstünakın
- Samsun Veterinary Control and Research Institute, Samsun, Turkey
| | - T Gülhan
- Department of Microbiology, Faculty of Veterinary Medicine, University of Ondokuz Mayıs, Samsun, Turkey
| | - F Balta
- Department of Aquaculture, Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey
| | - S Altun
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
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Batmaz G, Aksoy A, Aydin S, Ozcan P, Dane C, Dane B. The early pregnancy volume measurements in predicting pregnancy outcome. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog2090.2016] [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: 11/01/2022]
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Batmaz G, Aksoy A, Aydin S, Ozcan P, Dane C, Dane B. The early pregnancy volume measurements in predicting pregnancy outcome. CLIN EXP OBSTET GYN 2016; 43:241-244. [PMID: 27132419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE The authors' aim was to develop a logistic regression model based on the ultrasonographic parameters on maternities which are showing a healthy improvement process during the first trimester of pregnancy. MATERIAL AND METHODS Using 2D transvaginal ultrasound imaging, the crown rump length (CRL), yolk sac (YS), and gestational sac (GS) diameters were recorded in 225 women with gestational age < 11 weeks. Simplified V = 0.523 x length x height x width formula was used for the volume calculations. The results which ended in abortion were not included in the study. RESULTS Linear regression analyses between yolk sac volume (YSV), YSV = 0.026 + 0.0018 x CRL (r²: 0.15; p < 0.001), gestational sac volume (GSV), GSV= -9.6 + 1.7 x CRL (r²: 0.52; p < 0.001), and embryo volume (EV), EV = -1.64 + 0.18 x CRL (r²: 0.4; p < 0.001), and CRL was made and a linear relationship was detected. The volume measurements showed a meaningful correlation with the week of pregnancy. The space in the GS (GS volume-embryo volume) increased as the age of pregnancy became older (r² = 0.46; p < 0.001). DISCUSSION The first volume value was made in the first trimester by transvaginal ultrasonography, which showed a correlation with the age of pregnancy.
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Ciray H, Aksoy A, Ulu N, Cizmecioglu A, Gaipov A, Solak Y. Nephropathy, but not Angiographically Proven Retinopathy, is Associated with Neutrophil to Lymphocyte Ratio in Patients with Type 2 Diabetes. Exp Clin Endocrinol Diabetes 2015; 123:267-71. [DOI: 10.1055/s-0035-1547257] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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)
- H. Ciray
- Department of Internal Medicine, Karaman State Hospital, Karaman, Turkey
| | - A. Aksoy
- Department of Ophthalmology, Karaman, State Hospital, Karaman, Turkey
| | - N. Ulu
- Secretary General, Turkish Public Hospitals Institution, Karaman Association of Public Hospitals, Karaman, Turkey
| | - A. Cizmecioglu
- Department of Internal Medicine, Karaman State Hospital, Karaman, Turkey
| | - A. Gaipov
- Extracorporeal Hemocorrection Unit, National Scientific Medical Research Center, Astana, Kazakhstan
| | - Y. Solak
- Nephrology Unit, Department of Internal Medicine, Karaman State Hospital, Karaman, Turkey
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Tos T, Alp MY, Aksoy A, Ceylaner S, Hanauer A. A familial case of Coffin-Lowry syndrome caused by RPS6KA3 C.898C>T mutation associated with multiple abnormal brain imaging findings. Genet Couns 2015; 26:47-52. [PMID: 26043507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Coffin-Lowry syndrome (CLS) is a rare X linked mental retardation syndrome characterised by severe psychomotor and growth retardation, distinct facial phenotype, and progressive skeletal malformations. It is caused by mutations in the RPS6KA3 gene located at Xp22.2. In this report we describe a family with CLS consists of three affected males, and two affected females, arising from c.898C>T mutation in RPS6KA3 gene. A 6 year-old, and a 3 year-old boy both had distinct clinical features of Coffin-Lowry syndrome; severe mental and motor retardation, microcephaly, prominent forehead, hypertelorism, large mouth, large ears, large soft hands, puffy tapered fingers, and pectus carinatum. In addition, they had multiple abnormal brain MRI findings. Other siblings presented with a mild and variable phenotype.
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Yildirim Y, Karakaya D, Kelsaka E, Aksoy A, Gülbahar MY, Bedir A. The effect of dexketoprofen on ischemia reperfusion injury. ACTA ACUST UNITED AC 2014; 115:256-9. [PMID: 25174054 DOI: 10.4149/bll_2014_053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE The purpose of this study was to demonstrate the effects of dexketoprofen on experimental ischemia/reperfusion injury induced in rat testicles. METHODS Twenty-four male Wistar albino-type rats were randomly separated into three groups. To develop testicular torsion, the right testicle was rotated 720° clockwise. After five hours of rotation, reperfusion was applied for 24 hours. The control group rats (Group C) had no procedures or treatments; basal numbers were used. Intraperitoneal 25 mg/kg dexketoprofen (1 cc) (Group D) or the same volume of serum physiologic (Group SP) were given to the Group D and Group SP rats 40 minutes before and 12 hours after detorsion. Twenty-four hours after detorsion, histopathological evaluation was performed by bilateral orchiectomy. Malondialdehyde (MDA) levels were detected in testicular tissue and in serum. RESULTS Histopathologic changes in the spermatic cells of torsioned testicles in Group D were significantly less than those of Group SP (p < 0.05). MDA levels in both testicles in Group D were similar to those of the control group. Although they were lower than Group SP, the difference was not statistically significant. Serum MDA levels were lower in Group D compared to the other groups (p < 0.05). CONCLUSION We detected that dexketoprofen decreases I/R injury in both the torsion-formed testicle and the contralateral testicle. Thus, in patients who have urgent surgery for testicular detorsion, dexketoprofen can be preferred as an analgesic to reduce I/R injury. Further study is warranted to demonstrate this effect of dexketoprofen (Tab. 3, Fig. 1, Ref. 30).
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Turan N, Benekli M, Unal O, Unek I, Tastekin D, Dane F, Algin E, Ulger S, Eren T, Topcu T, Turkmen E, Babacan N, Tufan G, Urakci Z, Ustaalioglu B, Uysal O, Ercelep O, Taskoylu B, Aksoy A, Canhoroz M. Impact of Adjuvant Treatment Modalities on Survival Outcomes in Curatively Resected Pancreatic and Periampullary Adenocarcinoma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.79] [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: 11/13/2022] Open
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38
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Catak Z, Aydin S, Sahin I, Kuloglu T, Aksoy A, Dagli AF. Regulatory neuropeptides (ghrelin, obestatin and nesfatin-1) levels in serum and reproductive tissues of female and male rats with fructose-induced metabolic syndrome. Neuropeptides 2014; 48:167-77. [PMID: 24786976 DOI: 10.1016/j.npep.2014.04.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 04/02/2014] [Accepted: 04/07/2014] [Indexed: 12/15/2022]
Abstract
Although, the exact mechanisms underlying the development of the metabolic syndrome (MetS) are not still completely understood, obesity, circulated peptide hormone levels and their interaction with genetic factors are considered largely responsible. The purpose of this study is to explore how the levels of ghrelin, obestatin (OBS) and NUCB2/nesfatin-1 (NES)/NUCB2 change in serum and the reproductive tissues of female and male rats with fructose-induced metabolic syndrome, and whether the levels of each hormone is correlated with the hormones involved with fertility. Experiments were conducted on 5-week-old Sprague-Dawley male and female rats assigned to either a control group or a MetS group. Controls were fed standard rat food and water ad libitum, while the MetS group was fed standard food with 10% (v/v) fructose solution added to their drinking water for 12 weeks with a 12/12h photoperiod circle. Then, all animals were sacrificed after a one night fast. Peptides levels in the serum and reproductive tissues of rats were studied using the ELISA method while the immunoreactivity of reproductive system peptide hormones were shown by immunohistochemical staining method. Furthermore, the other biochemical parameters were measured using Konelab-60 equipment and infertility hormones were measured with Immulite2000. Fasting serum insulin, glucose, triglyceride, alanine aminotransferase (ALT), gamma glutamyl transpeptidase (GGT), low-density lipoprotein cholesterol (LDL-C), and total cholesterol (TC) levels were statistically significantly higher, and the amount of high density lipoprotein cholesterol (HDL-C) was significantly lower, in the MetS groups. Serum and tissue supernatant NES levels were significantly higher in the rats with MetS than the control group. Ghrelin, OBS and NES were expressed in the cytoplasm, concentrated around the apical parts of the epithelial cells in the reproductive tissues of the rats. The amounts of ghrelin were lower in the reproductive tissues of the animals with MetS, while NES levels in the same tissues increased. Obestatin also decreased, though not in the seminal glands.
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Affiliation(s)
- Zekiye Catak
- Department of Medical Biochemistry and Clinical Biochemistry (Firat Hormones Research Group), Medical School, Firat University, 23119 Elazig, Turkey
| | - Suleyman Aydin
- Department of Medical Biochemistry and Clinical Biochemistry (Firat Hormones Research Group), Medical School, Firat University, 23119 Elazig, Turkey.
| | - Ibrahim Sahin
- Department of Medical Biochemistry and Clinical Biochemistry (Firat Hormones Research Group), Medical School, Firat University, 23119 Elazig, Turkey; Department of Histology and Embryology, Medical School, Erzincan University, 24030 Erzincan, Turkey
| | - Tuncay Kuloglu
- Department of Histology and Embryology, Medical School, Firat University, 23119 Elazig, Turkey
| | - Aziz Aksoy
- Department of Medical Biochemistry and Clinical Biochemistry (Firat Hormones Research Group), Medical School, Firat University, 23119 Elazig, Turkey; Department of Nutrition and Dietetics, Bitlis Eren University, 13000 Bitlis, Turkey
| | - Adile Ferda Dagli
- Department of Medical Pathology, Medical School, Inonu University, 44280 Malatya, Turkey
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Proletov I, Sipovskii V, Smirnov A, Hayashi N, Akiyama S, Okuyama H, Matsui Y, Fujimoto K, Atsumi H, Adachi H, Yamaya H, Maruyama S, Imai E, Matsuo S, Yokoyama H, Prasad N, Jaiswal A, Agarwal V, Yadav B, Rai M, Shin DH, Han IM, Moon SJ, Yoo TH, Faria B, Henriques C, Matos AC, Daha MR, Pestana M, Seelen M, Lundberg S, Carlsson MC, Leffler H, Pahlsson P, Segelmark M, Camilla R, Donadio ME, Loiacono E, Peruzzi L, Amore A, Chiale F, Vergano L, Gallo R, Boido A, Conrieri M, Bianciotto M, Bosetti FM, Mengozzi G, Puccinelli MP, Guidi C, Lastauka I, Coppo R, Nishiwaki H, Hasegawa T, Nagayama Y, Komukai D, Kaneshima N, Sasai F, Yoshimura A, Wang CL, Wei XY, Lv L, Jia NY, Vagane AM, Knoop T, Vikse BE, Reisaeter AV, Bjorneklett R, Mezzina N, Brunini F, Trezzi B, Gallieni M, D'Amico M, Stellato T, Santoro D, Ghiggeri GM, Radice A, Sinico RA, Kronbichler A, Kerschbaum J, Mayer G, Rudnicki M, Elena GS, Paula Jara CE, Jorge Enrique RR, Manuel P, Paek J, Hwang E, Park S, Caliskan Y, Aksoy A, Oztop N, Ozluk Y, Artan AS, Yazici H, Kilicaslan I, Sever MS, Yildiz A, Ihara K, Iimori S, Okado T, Rai T, Uchida S, Sasaki S, Stangou M, Bantis C, Skoularopoulou M, Toulkeridis G, Labropoulou I, Kasimatis S, Kouri NM, Papagianni A, Efstratiadis G, Mircescu G, Stancu S, Zugravu A, Petrescu L, Andreiana I, Taran L, Suzuki T, Iyoda M, Yamaguchi Y, Watanabe M, Wada Y, Matsumoto K, Shindo-Hirai Y, Kuno Y, Yamamoto Y, Saito T, Iseri K, Shibata T, Gniewek K, Krajewska M, Jakuszko K, Koscielska-Kasprzak K, Klinger M, Nunes AT, Ferreira I, Neto R, Mariz E, Pereira E, Frazao J, Praca A, Sampaio S, Pestana M, Kim HJ, Lee JE, Proletov I, Galkina O, Bogdanova E, Zubina I, Sipovskii V, Smirnov A, Oliveira CBL, Oliveira ASA, Carvalho CJB, Sette LHBC, Fernandes GV, Cavalcante MA, Valente LM, Ismail G, Andronesi A, Jurubita R, Bobeica R, Finocchietti D, Cantaluppi V, Medica D, Daidola G, Colla L, Besso L, Burdese M, Segoloni GP, Biancone L, Camussi G, Goto S, Nakai K, Ito J, Fujii H, Tasaki K, Suzuki T, Fukami K, Hara S, Nishi S, Hayami N, Ubara Y, Hoshino J, Takaichi K, Suwabe T, Sumida K, Mise K, Wang CL, Tian YQ, Wang H, Saganova E, Proletov I, Galkina O, Bogdanova E, Zubina I, Sipovskii V, Smirnov A, Stancu S, Mandache E, Zugravu A, Petrescu L, Avram A, Mircescu G, Angelini C, Reggiani F, Podesta MA, Cucchiari D, Malesci A, Badalamenti S, Laganovi M, Ars E, ivko M, eljkovic Vrki T, Cori M, Karanovi S, Torra R, Jelakovi B, Jia NY, Wang CL, Zhang YH, Nan L, Nagasawa Y, Yamamoto R, Shinzawa M, Hamahata S, Kida A, Yahiro M, Kuragano T, Shoji T, Hayashi T, Nagatoya K, Yamauchi A, Isaka Y, Nakanishi T, Ivkovic V, Premuzic V, Laganovic M, Dika Z, Kos J, Zeljkovic Vrkic T, Fistrek Prlic M, Zivko M, Jelakovic B, Gigliotti P, Leone F, Lofaro D, Papalia T, Mollica F, Mollica A, Vizza D, Perri A, Bonofilgio R, Meneses G, Viana H, Santos MC, Ferreira C, Calado J, Carvalho F, Remedio F, Nolasco F, Caliskan Y, Oztop N, Aksoy A, Ozluk Y, Artan AS, Turkmen A, Kilicaslan I, Yildiz A, Sever MS, Nagaraju SP, Kosuru S, Parthasarathy R, Bairy M, Prabhu RA, Guddattu V, Koulmane Laxminarayana SL, Oruc A, Gullulu M, Acikgoz E, Aktas N, Yildiz A, Gul B, Premuzic V, Laganovic M, Ivkovic V, Coric M, Zeljkovic Vrkic T, Fodor L, Dika Z, Kos J, Fistrek Prlic M, Zivko M, Jelakovic B, Bale CB, Dighe TA, Kate P, Karnik S, Sajgure A, Sharma A, Korpe J, Jeloka T, Ambekar N, Sadre A, Buch A, Mulay A, Merida E, Huerta A, Gutierrez E, Hernandez E, Sevillano A, Caro J, Cavero T, Morales E, Moreno JA, Praga M. PRIMARY AND SECONDARY GLOMERULONEPHRITIDES 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sipahi T, Basak A, Ozgen Z, Aksoy A, Omurlu I, Palabiyik O, Cakina S, Sener S. Lack of Evidence for Contribution of Endothelial Nitric Oxide Synthase Intron 4 VNTR Gene Polymorphisms to Development of Ischemic Stroke in Turkish Subjects. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.1080/13102818.2009.10817673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Demirkan N, Demirkan F, Aksoy A, Özdemir M, Akman A. Local rhBMP-2 Injection after Drill-Hole Injury in Rats: Does it Have Systemic Effects? Int J Immunopathol Pharmacol 2014; 27:253-60. [DOI: 10.1177/039463201402700212] [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: 11/16/2022] Open
Abstract
The aim of this study is to investigate the histopathological findings of drill hole healing and interactions of parathyroid hormone (PTH), β-catenin and transcription factor-4 (TCF7L2/Tcf-4) after local application of recombinant human bone morphogenic protein-2 (rhBMP-2). Sprague Dawley rats were used in two groups of ‘femoral cortex hole model’. In the non-treated group, a hole was opened with a 3 mm K-wire in the distal and mid third junction of the right femur. In the treated group, local rhBMP-2 protein was injected into the similar femoral hole. Sterile 18M H2O was injected into the femoral hole at contralateral femur. There was more subperiosteal membranous bone reaction in the group treated with rhBMP-2 injection compared to the non-treated group. This was also proven immunohistochemically in both ipsilateral and contralateral femur with increased anti bone morphogenic protein-2 (anti BMP-2) expression. Moreover, there was an increased subperiosteal reaction at the contralateral femur. Also, in the treated group, PTH expression was increased in cells that form callus, and nuclear beta-catenin expression was increased in chondrocytes of periosteal ossification. Future studies should try to find whether the effects of rhBMP-2 on PTH and Wnt signaling pathway changes with different fracture models, also the systemic effects of local rhBMP-2 application should be investigated.
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Affiliation(s)
- N. Demirkan
- Department of Pathology, Medical School of Pamukkale University, Denizli, Turkey
| | - F. Demirkan
- Department of Orthopaedics and Traumatology, Medical School of Pamukkale University, Denizli, Turkey
| | - A. Aksoy
- Department of Pathology, Ankara University Medical School, Ankara, Turkey
| | - M. Özdemir
- Department of Orthopaedics and Traumatology, Ozel Mardin Park Hastanesi, Mardin, Turkey
| | - A. Akman
- Department of Orthopaedics and Traumatology, Medical School of Pamukkale University, Denizli, Turkey
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Simsek T, Duruksu G, Okçu A, Aksoy A, Erman G, Utkan Z, Cantürk Z, Karaöz E. Effect of hypothyroidism in the thyroidectomized rats on immunophenotypic characteristics and differentiation capacity of adipose tissue derived stem cells. Eur Rev Med Pharmacol Sci 2014; 18:617-629. [PMID: 24668701] [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: 06/03/2023]
Abstract
INTRODUCTION Thyroid hormones influence multiple physiological functions, like growth, differentiation, protein synthesis and metabolic rate. The hypothyroid state is a complex hormonal dysfunction rather than a single hormonal defect. The relation between hypothyroidism after thyroidectomy and stem cells is not clear. AIM This study was designed to investigate the effect of thyroidectomy on the proliferation, telomerase enzyme activities, immunophenotypic properties and differentiation potentials of adipose tissue-derived (AT-) stem cells (SCs). MATERIALS AND METHODS AT-SCs after 60 and 120 days of thyroidectomized (Tx) rats were compared to normal rats by flow cytometry and immunocytochemistry analyses, and their telomerase activities were estimated. RESULTS The telomerase activity was found to be positive for AT-SCs of Tx rats of both 60 and 120 days used in this study, but a decrease was noticed in the cells with the long-term exposure to hypothyroidism. This might indicate the decrease in the regenerative ability of the AT-SCs after 120 days of Tx compared to cells after 60 days of Tx. Both cell lines were induced to differentiate into adipogenic, osteogenic and neurogenic cell lineages, but osteogenic marker expression was not detected in the undifferentiated AT-SCs of the Tx rats. Osteogenic differentiation was also failed in stem cells derived from Tx rats, shown by Alizarin red S staining and alkaline phosphates enzyme assays. DISCUSSION These results suggest that hypothyroidism affected SCs, altered stem cell characteristics, like telomerase activity and loss of in vitro bone formation, but not adipogenic or neurogenic differentiation ability. CONCLUSIONS Hypothyroidism after Tx affects the osteogenic differentiation capacity of stem cells, which might be one of the factors of bone loss due to postnatal hypothyroidism.
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Affiliation(s)
- T Simsek
- Department of Surgery, Faculty of Medicine, and Center for Stem Cell and Gene Therapy Research and Practice; Kocaeli University, Kocaeli, Turkey.
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Aydin S, Celik O, Gurates B, Sahin I, Ulas M, Yilmaz M, Kalayci M, Kuloglu T, Catak Z, Aksoy A, Ozercan IH, Kumru S. Concentrations of preptin, salusins and hepcidins in plasma and milk of lactating women with or without gestational diabetes mellitus. Peptides 2013; 49:123-30. [PMID: 24060315 DOI: 10.1016/j.peptides.2013.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Revised: 09/09/2013] [Accepted: 09/09/2013] [Indexed: 12/21/2022]
Abstract
This study was undertaken to ascertain whether human milk contains preptin, salusin-alpha (salusin-α) and -beta (salusin-β) and pro-hepcidin and hepcidin-25, and whether there are relationships between plasma and milk preptin, salusin-α and -β and pro-hepcidin and hepcidin-25 concentrations in lactating mothers with and without gestational diabetes mellitus (GDM). Blood was obtained from non-lactating women (n = 12), non-diabetic lactating women (n = 12), and GDM lactating women (n = 12). Colostrum, transitional milk, and mature milk samples were collected just before suckling from healthy and GDM lactating women. Peptides concentrations were determined by ELISA and EIA. Mammary gland tissues were screened immunohistochemically for these peptides. Women with GDM had significantly higher plasma and colostum preptin concentrations than healthy lactating women during the colostral and transitional milk period. Salusin-alpha and -beta levels in milk and plasma were lower in women with GDM. Salusin-α and -β were significantly lower in both plasma and colostrums of GDM than of healthy lactating women. Women with GDM had significantly higher colostum prohepcidin and hepcidin-25 concentrations than healthy lactating women during the colostral period. Plasma prohepcidin was also higher in women with GDM than in healthy lactating women during the colostral period, but plasma prohepcidin and hepcidin-25 levels decreased during mature milk period. Transitional milk pro-hepcidin and hepcidin-25 levels in women with GDM were higher than in healthy lactating women. All these results revealed that the mammary gland produces those peptides, which were present in milk at levels correlating with plasma concentrations.
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Affiliation(s)
- Suleyman Aydin
- Department of Medical Biochemistry and Clinical Biochemistry (Firat Hormones Research Group), Medical School, Firat University, 23119 Elazig, Turkey.
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Ertaş E, Aksoy A, Turla A, Karaarslan ES, Karaarslan B, Aydın A, Eken A. Human brain mercury levels related to exposure to amalgam fillings. Hum Exp Toxicol 2013; 33:873-7. [DOI: 10.1177/0960327113509662] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The safety of dental amalgam as the primary material in dental restoration treatments has been debated since its introduction. It is widely accepted that amalgam restorations continuously release elemental mercury (Hg) vapor, which is inhaled and absorbed by the body and distributed to tissues, including the brain. The aim of the present study was to investigate whether the presence of amalgam fillings is correlated with brain Hg level. The Hg levels in the parietal lobes of the brains of 32 cadavers were analyzed with an atomic absorption spectrometer with the mercury hydride system. A total of 32 brain samples were tested; of these, 10 were from cadavers with amalgam fillings, while 22 of them were amalgam free. Hg was detected in 60.0% (6 of 10) of the samples in the amalgam group and in 36.3% (8 of 22) in the amalgam-free group. The average Hg level of the amalgam group was 0.97 ± 0.83 µg/g (minimum: 0.3 µg/g and maximum: 2.34 µg/g), and in the amalgam-free group, it was 1.06 ± 0.57 µg/g (minimum: 0.17 µg/g and maximum: 1.76 µg/g). The results of the present study showed no correlation between the presence of amalgam fillings and brain Hg level.
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Affiliation(s)
- E Ertaş
- Department of Restorative Dentistry, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
| | - A Aksoy
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - A Turla
- Department of Forensic Science, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - ES Karaarslan
- Department of Restorative Dentistry, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey
| | - B Karaarslan
- Department of Forensic Science, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - A Aydın
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey
| | - A Eken
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
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Aksoy A, Solmaz D, Can G, Cetin P, Balci A, Akar S, Birlik M, Akkoc N, Onen F. THU0321 Increased Frequency of Hand Osteoarthritis in Patients with Primary Sjogren’s Syndrome: Is there a Relationship between Two Diseases? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.849] [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: 11/04/2022]
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Aksoy A, Solmaz D, Akar S, Gunduz O, Birlik M, Sari I, Ozaksoy D, Akkoc N, Onen F. AB0664 Frequency of hand osteoarthritis in patients with primary sjogren syndrome: Is there a relationship between two diseases? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.664] [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: 11/04/2022]
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Aksoy A, Özdomanic İ, Sirek N, Durmaz S. PP-230 CORONARY BYPASS IN A PATIENT WITH TAKAYASU ARTERITIS. Int J Cardiol 2013. [DOI: 10.1016/s0167-5273(13)70434-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sonmez FM, Aksoy A, Sari A, Erpolat S, Ozkaya AK. Phacomatosis pigmentovascularis type IIB associated with Sturge-Weber syndrome: a case report and review of the literature. Genet Couns 2013; 24:247-250. [PMID: 24032298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Ozkan Y, Timurkan ES, Aydin S, Sahin İ, Timurkan M, Citil C, Kalayci M, Yilmaz M, Aksoy A, Catak Z. Acylated and desacylated ghrelin, preptin, leptin, and nesfatin-1 Peptide changes related to the body mass index. Int J Endocrinol 2013; 2013:236085. [PMID: 24371438 PMCID: PMC3858877 DOI: 10.1155/2013/236085] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/17/2013] [Accepted: 11/05/2013] [Indexed: 01/18/2023] Open
Abstract
This study examines the levels of acylated and desacylated ghrelin, preptin, leptin, and nesfatin-1 peptide changes related to the body mass index (BMI). The subjects were allocated to 5 groups depending on their BMIs as follows: Group I (BMI <18.5 kg/m(2)); Group II (BMI 18.5-24.9 kg/m(2)); Group III (BMI 25-29.9 kg/m(2)); Group IV (BMI 30-39.9 kg/m(2)); Group V (BMI >40 kg/m(2)). Serum acylated and desacylated ghrelin, preptin, and leptin levels were measured by the enzyme-linked immunosorbent assay (ELISA) and nesfatin-1 was measured by the enzyme immunoassay (EIA). Desacylated ghrelin levels showed a gradual and statistically significant drop from Group I to Group V, while preptin and leptin levels exhibited a gradual and significant increase from Group I to Group IV. Serum nesfatin-1 levels gradually, but not significantly, increased from Group I to Group III and showed a significant decrease in Groups IV and V. In conclusion, leptin, preptin, and acylated ghrelin (AG) levels increased with higher BMI, whereas desacylated ghrelin (DAG) decreased and nesfatin-1 showed no clear relationship to BMI.
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Affiliation(s)
- Yusuf Ozkan
- Department of Endocrinology and Metabolism, Firat University Hospital, 23119 Elazig, Turkey
| | - Esra Suay Timurkan
- Department of Endocrinology and Metabolism, Firat University Hospital, 23119 Elazig, Turkey
| | - Suleyman Aydin
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Firat University Hospital, 23119 Elazig, Turkey
- *Suleyman Aydin:
| | - İbrahim Sahin
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Firat University Hospital, 23119 Elazig, Turkey
- Department of Histology and Embryology, Medical School, Erzincan University, 24100 Erzincan, Turkey
| | - Mustafa Timurkan
- Department of Endocrinology and Metabolism, Firat University Hospital, 23119 Elazig, Turkey
| | - Cihan Citil
- Atatürk Vocational School of Health Science, Kafkas University, 36040 Kars, Turkey
| | - Mehmet Kalayci
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Firat University Hospital, 23119 Elazig, Turkey
| | - Musa Yilmaz
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Firat University Hospital, 23119 Elazig, Turkey
| | - Aziz Aksoy
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Firat University Hospital, 23119 Elazig, Turkey
- Department of Nutrition and Dietetic, Bitlis Eren University, 13000 Bitlis, Turkey
| | - Zekiye Catak
- Department of Medical Biochemistry and Clinical Biochemistry, Firat Hormones Research Group, Firat University Hospital, 23119 Elazig, Turkey
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Deniz R, Gurates B, Aydin S, Celik H, Sahin I, Baykus Y, Catak Z, Aksoy A, Citil C, Gungor S. Nesfatin-1 and other hormone alterations in polycystic ovary syndrome. Endocrine 2012; 42:694-9. [PMID: 22367584 DOI: 10.1007/s12020-012-9638-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 02/15/2012] [Indexed: 10/28/2022]
Abstract
Polycystic ovary syndrome (PCOS) is commonly characterised by obesity, insulin resistance (IR), hyperandrogenemia and hirsutism. Nesfatin-1 a recently discovered hormone, acts upon energy balance, glucose metabolism, obesity and probably gonadal functions. This study was to evaluate the circulating levels of nesfatin-1 in patients with PCOS (n = 30) and in age and body mass index (BMI)-matched controls (n = 30). PCOS patients had significantly lower levels of nesfatin-1 (0.88 ± 0.36 ng/mL) than healthy controls (2.22 ± 1.14 ng/mL). PCOS patients also had higher gonadotropin and androgen plasma concentrations, Ferriman-Gallwey scores, blood glucose levels and a homeostasis model of assessment-IR index (HOMA-IR) index than in healthy women. Correlation tests in PCOS subjects detected a negative correlation between nesfatin-1 levels and BMI, fasting blood glucose, insulin levels and a HOMA-IR index. Lower nesfatin-1 concentration may plays a very important role in the development of PCOS.
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Affiliation(s)
- Rulin Deniz
- Department of Obstetrics and Gynecology, Firat University Hospital, Elazig, Turkey
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