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Yilmaz O, Okullu SO, Catakci M, Elmas MA, Pinheiro Y, Arbak S, Demir E, Schaefer KH, Kolgazi M. Akkermansia muciniphila improves chronic colitis-induced enteric neuroinflammation in mice. Neurogastroenterol Motil 2024; 36:e14745. [PMID: 38263790 DOI: 10.1111/nmo.14745] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 08/03/2023] [Accepted: 08/29/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND Inflammatory bowel diseases (IBD) are chronic diseases that are not fully understood. Drugs in use can only be applied for a short time due to their side effects. Therefore, research is needed to develop new treatment approaches. In addition, it has been proven that IBD causes degeneration in the enteric nervous system (ENS). In recent years, it has been discussed that probiotics may have positive effects in the prevention and treatment of inflammatory enteric degeneration. Akkermansia muciniphila (A. muciniphila) is an anaerobic bacterium found in the mucin layer of the intestinal microbiota. It has been found that the population of A. muciniphila decreases in the case of different diseases. In light of this information, the curative effect of A. muciniphila application on colitis-induced inflammation and enteric degeneration was investigated. METHODS In this study, 5 weeks of A. muciniphila treatment in Trinitro-benzene-sulfonic acid (TNBS)-induced chronic colitis model was investigated. Colon samples were examined at microscopic, biochemical, and molecular levels. Fecal samples were collected before, during, and after treatment to evaluate the population changes in the microbiota. Specific proteins secreted from the ENS were evaluated, and enteric degeneration was examined. RESULTS As a result of the research, the ameliorative effects of A. muciniphila were shown in the TNBS colitis model-induced inflammation and ENS damage. DISCUSSION In light of these results, A. muciniphila can potentially be evaluated as a microbiome-based treatment for IBD with further clinical and experimental studies.
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Affiliation(s)
- Ozgur Yilmaz
- Department of Physiology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Sinem Oktem Okullu
- Department of Microbiology, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Merve Catakci
- Department of Physiology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Merve Acikel Elmas
- Department of Histology and Embryology, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Yuri Pinheiro
- Research Unit of Comparative Microbiome Analysis, Helmholtz Zentrum Muenchen, Munich, Germany
| | - Serap Arbak
- Department of Histology and Embryology, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Ekin Demir
- Department of Surgery, School of Medicine Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Karl Herbert Schaefer
- Research and Transfer Working Group Enteric Nervous System (AGENS), University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Meltem Kolgazi
- Department of Physiology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
- Department of Physiology, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
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Ekici M, Demir E, Aydın C. A bibliometric perspective with research trends and global productivity on the modernization of andrology from the founder of modern clinical andrology Edward Martin to the present. Eur Rev Med Pharmacol Sci 2023; 27:11947-11960. [PMID: 38164858 DOI: 10.26355/eurrev_202312_34794] [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: 01/03/2024]
Abstract
OBJECTIVE The number of studies in the field of andrology is increasing day by day, but a bibliometric study covering the entire literature on andrology has not yet been conducted. This bibliometric study aims to shed light on the question of where we came from and where we are going in andrology from past to present. It also aimed to summarize the intellectual structure of andrology to reveal global productivity and identify and map the latest trends of scientific articles published in the field of andrology. MATERIALS AND METHODS 16,659 articles published between 1980 and 2022 were extracted from the Web of Science and analyzed using various statistical methods. Bibliometric network visualization maps revealed trending topics, global productivity, the most influential studies, and international collaborations. Spearman's correlation analysis was used for determining correlations. RESULTS The top three productive countries were United States of America (3,452; 20.7%), China (2,300; 13.8%), and Germany (1,069; 6.4%). The top two most productive authors were Agarwal A. (n=130) and Nieschlag E. (n=130). The most productive institution was the Egyptian Knowledge Bank (n=422). From past to present, the most studied subjects were testis, male infertility, spermatozoa, testosterone, infertility, erectile dysfunction, spermatogenesis, sperm, prostate cancer (PCA)/neoplasms, oxidative stress, fertility/fertilization, semen, rat(s), apoptosis, azoospermia, sperm motility, human and varicocele. CONCLUSIONS The trend topics that have been researched more in recent years include erectile dysfunction, oxidative stress, prostate cancer, sperm quality, sperm parameters, infertility, premature ejaculation, diabetes mellitus, obesity, prognosis, sperm DNA fragmentation/damage, antioxidant, asthenozoospermia, varicocelectomy, COVID-19, inflammation, prostatectomy, metabolic syndrome, hypogonadism, benign prostatic hyperplasia, lower urinary tract symptoms, meta-analysis, sexual dysfunction, peyronie's disease, and proliferation. We identified the research leadership of China, Japan, Turkey and India, in addition to Western countries, such as the USA and European countries.
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Affiliation(s)
- M Ekici
- Department of Urology, Faculty of Medicine, Hitit University, Çorum, Turkey.
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Kaplan HM, Deger M, Erdogan KE, Ates T, Demir E. Alpha-linolenic acid protects against methotrexate-induced nephrotoxicity in mouse kidney cells. Eur Rev Med Pharmacol Sci 2023; 27:11103-11108. [PMID: 38039041 DOI: 10.26355/eurrev_202311_34479] [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: 12/02/2023]
Abstract
OBJECTIVE Methotrexate (MTX) is a folic acid antagonist used in chronic inflammatory diseases and various cancer treatments. Although the main mechanism of the toxic effect of MTX is not known, it is stated that it causes oxidative stress and inflammation. Alpha-linolenic acid (ALA) protects against oxidative stress, apoptosis, and inflammation. For this reason, we aimed to find out the useful effect of ALA on MTX-induced nephrotoxicity MATERIALS AND METHODS: The mice were divided into 4 groups randomly. The control group was treated with physiological saline solution; the ALA group was treated with ALA (200 mg/kg) by gavage; MTX-treated group received 20 mg/kg i.p. (intraperitoneal) MTX; and MTX+ALA treated group received 20 mg/kg i.p. MTX and ALA 200 mg/kg by gavage. All of the drugs were performed once a day for 9 days. RESULTS Alpha-linolenic acid significantly decreased oxidative stress parameters and MTX-induced inflammatory and apoptotic mediators. Furthermore, histopathological examination showed that MTX induced significant edematous damage, and ALA treatment attenuated this damage in renal tissue. CONCLUSIONS Our results revealed that ALA may be helpful against MTX-induced nephrotoxicity in mice via its antioxidant and anti-inflammatory properties.
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Affiliation(s)
- H M Kaplan
- Department of Pharmacology, Faculty of Medicine, Çukurova University, Adana, Turkey.
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Sevinç S, Demir E, Kırsaçlıoğlu C, Kansu A, Ensari A, Kuloğlu Z. Adherence To A Gluten-Free Diet In Children With Celiac Disease And Barriers To Compliance: A Cross-Sectional Study. Clin Nutr ESPEN 2023. [DOI: 10.1016/j.clnesp.2022.09.326] [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: 03/28/2023]
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Duman Şenol H, Geyik M, Topyıldız E, Aygün A, Gülen F, Demir E. Factors effecting natural course of egg allergy. Eur Ann Allergy Clin Immunol 2023. [PMID: 36891735 DOI: 10.23822/eurannaci.1764-1489.287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Summary Background. There is limited data about the natural course of egg allergy in the literature. We aimed to analyze the factors that can affect the tolerance or persistence of egg allergy. Methods. A total number of 126 IgE- mediated egg allergic patient who had data about tolerance gaining were included in the study. Demographic and laboratory data were recorded retrospectively. Kaplan-Meier curves was used for estimation of resolution and the factors related to resolution by Cox regression model. Results. Among 126 patients 81 (64.2%) had gained tolerance with a median survival time of 48 months (min 12- max 121). Tolerance was gained in 22.2% (28) of these patients in the first 2 years, in 46.8% (49) 2-6 years, 3.1% (4) between 7-12 years. In univariate analysis, no history of anaphylaxis (at initiation or during OFC) (Hazard ratio 2.193; 95%CI 1.309-3.674, p = 0.003), baseline sIgE level less than 8.2 (Hazard ratio 11.292; 95%CI 2.766-46.090, p = 0.001) and baseline egg SPT less than 11 mm (Hazard ratio 2.906; 95%CI 1.424-5.930, p = 0.003) were found to be related to earlier resolution of egg allergy. In multivariate analysis only anaphylaxis was significantly related to later resolution (Hazard ratio: 6.547; 95%CI 15.80-27.434, p = 0.01). Conclusions. Higher levels of egg sIgE, skin prick test induration and anaphylaxis at onset or during oral food challenge, can give hint about persistence of egg allergy.
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Affiliation(s)
- H Duman Şenol
- Pediatric Allergy and Immunology, Ege University Faculty of Medicine, İzmir, Turkey
| | - M Geyik
- Pediatric Allergy and Immunology, Ege University Faculty of Medicine, İzmir, Turkey
| | - E Topyıldız
- Pediatric Allergy and Immunology, Ege University Faculty of Medicine, İzmir, Turkey
| | - A Aygün
- Pediatric Allergy and Immunology, Ege University Faculty of Medicine, İzmir, Turkey
| | - F Gülen
- Pediatric Allergy and Immunology, Ege University Faculty of Medicine, İzmir, Turkey
| | - E Demir
- Pediatric Allergy and Immunology, Ege University Faculty of Medicine, İzmir, Turkey
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Sari E, Er ST, Demir E. Suicide as globalisation's Black Swan: global evidence. Public Health 2023; 217:74-80. [PMID: 36863115 DOI: 10.1016/j.puhe.2023.01.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 01/16/2023] [Accepted: 01/23/2023] [Indexed: 03/04/2023]
Abstract
OBJECTIVES This empirical study investigated the relationship between globalisation and suicide rates. We examined whether there is a beneficial or harmful relationship between economic, political and social globalisation and the suicide rate. We also estimated whether this relationship differs in high-, middle- and low-income countries. STUDY DESIGN Using panel data from 190 countries over the period 1990-2019, we examined the relationship between globalisation and suicide. METHOD We compared the estimated effect of globalisation on suicide rates using robust fixed-effects models. Our results were robust to dynamic models and models with country-specific time trends. RESULTS The effect of the KOF Globalisation Index on suicide was initially positive, leading to an increase in the suicide rate before decreasing. Concerning the effects of economic, political, and social dimensions of globalisation, we found a similar inverted U-shaped relationship. Unlike the middle-income and high-income countries, we found a U-shaped relationship for the case of low-income countries, indicating that suicide decreased with globalisation and then increased as globalisation continues to increase. Moreover, the effect of political globalisation disappeared in low-income countries. CONCLUSION Policy-makers in high- and middle-income countries, below the turning points, and low-income countries, above the turning points, must protect vulnerable groups from globalisation's disruptive forces, which can increase social inequality. Consideration of local and global factors of suicide will potentially stimulate the development of measures that might reduce the suicide rate.
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Affiliation(s)
- E Sari
- School of Business and Economics, UiT the Arctic University of Norway, Tromsø 9010, Norway; Division for Health and Social Sciences, NORCE Norwegian Research Centre, Tromsø, Norway.
| | - S T Er
- Institute of Law and Economics, University of Hamburg, Johnsallee 35, Hamburg 20148, Germany.
| | - E Demir
- Department of Business Administration, School of Social Sciences, Reykjavik University, Menntavegur 1, 102, 101, Reykjavík, Iceland.
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Çobanogĝlu N, Emiralioglu N, Çakır B, Sertçelik A, Yalçın E, Kiper N, Şen V, Ufuk Altıntasş D, Çokuĝraş H, Sakallı AK, Başkan A, Hepkaya E, Yazan H, Türel Ö, Yılmaz A, Ünal G, Caĝlar T, Damadoglu E, Irmak İ, Demir E, Öztürk G, Bingöl A, Başaran E, Sapan N, Aslan A, Asfuroğlu P, Harmancı K, Köse M, Hangül M, Özdemir A, Tuĝcu G, Polat SE, Özcan G, Gayretli Z, Keskin Ö, Bilgiç S, Yüksel H, Özdoĝan Ş, Topal E, Çaltepe G, Can D, Ekren PK, Kılıç M, Süleyman A, Eyüboĝlu TŞ, Cinel G, Pekcan S, Çakır E, Özcelik U, Doĝru D. P060 Factors associated with pulmonary functions of cystic fibrosis (CF) patients in the National Cystic Fibrosis Patient Registry: a retrospective cohort study. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00393-9] [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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Neov D, Slavov L, Donkov A, Mirzayev M, Popov E, Demir E, Siemek K, Djourelov N, Turchenko V, Sharipov Z, Horodek P, Beskrovnyi A, Valizade A, Samedov O, Vladescu A, Krezhov K, Felicia I. Structural study of W2B obtained via mechanical alloying of W, B4C, TiC and graphite before and after He ions irradiation. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2022.101201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Özkadı T, Demirkan E, Can S, Alagöz I, Demir E. Contribution of motoric and anthropometric components to the fifty-meter four swimming styles: Model approaches. Sci Sports 2021. [DOI: 10.1016/j.scispo.2021.04.009] [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: 10/19/2022]
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Peschke K, Jakubowski H, Schäfer A, Maurer C, Lange S, Orben F, Bernad R, Harder F, Eiber M, Öllinger R, Schlitter M, Weichert W, Phillip V, Schlag C, Schmid R, Braren R, Kong B, Demir E, Friess H, Rad R, Saur D, Schneider G, Reichert M. Abstract PO-070: Longitudinal precision oncology platform to identify chemotherapy-induced vulnerabilities in pancreatic cancer. Cancer Res 2021. [DOI: 10.1158/1538-7445.panca21-po-070] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains a devastating disease with poor survival rates as almost all patients develop resistance towards chemotherapy and molecular-informed targeted therapies are reserved to a few. Here, we aim to establish a longitudinal precision oncology platform with a multi-dimensional characterization of PDAC biopsies including genomic, transcriptomic as well as functional analyses to identify and exploit treatment-induced vulnerabilities. In order to investigate adaptive processes of tumors under treatment we aimed to generate PDAC patient-derived organoids (PDOs) and 2D cell lines before and after chemotherapy. Therefore, we enrolled a patient with borderline resectable PDAC who received neoadjuvant FOLFIRINOX. Endoscopic fine needle (pre-FFX) and surgical biopsies (post-FFX) were used to generate PDOs and 2D cells. Whole exome sequencing (WES) and RNA sequencing data of the pre-FFX and post-FFX organoids were compared in order to evaluate the genetic landscape and PDAC subtypes. 2D cells were subjected to an unbiased automated drug screening of 415 compounds to investigate FFX-induced vulnerabilities. Top targets were validated manually in the 2D cells and organoids. Although transcriptional subtyping classified both PDOs as classical PDAC, gene set enrichment analysis (GSEA) revealed a reduced pathway activation linked to the basal-like phenotype such as KRAS signaling in the post-FFX organoids. WES did not show major differences in the genetic landscape of the tumor pre- and post-FFX induction suggesting a plasticity process rather than a clonal selection during chemotherapy. Importantly, post-FFX cells exhibited an increased sensitivity in the unbiased drug screening towards MEK and EGFR inhibition compared to pre-FFX cells. 2D cells and organoids were treated with different MEK inhibitors (MEKi) for validation and post-FFX cells showed a highly increased response compared to the treatment-naïve cells, as well. Interestingly, when placed into the context of a panel of 15 primary PDAC cell lines the pre-FFX cells cluster with highly MEKi resistant PDAC cells whereas post-FFX cells belong to the most sensitive cell lines. In sum, integrating functional layers into personalized medicine allowed us to identify chemotherapy-induced vulnerabilities as potent targeted therapy options in PDAC. Thus, this longitudinal precision oncology platform harbors a unique opportunity to understand adaptive processes in tumor evolution and/or treatment-imposed pressure in PDAC patients.
Citation Format: Katja Peschke, Hannah Jakubowski, Arlett Schäfer, Carlo Maurer, Sebastian Lange, Felix Orben, Raquel Bernad, Felix Harder, Matthias Eiber, Rupert Öllinger, Melissa Schlitter, Wilko Weichert, Veit Phillip, Christoph Schlag, Roland Schmid, Rickmer Braren, Bo Kong, Ekin Demir, Helmut Friess, Roland Rad, Dieter Saur, Günter Schneider, Maximilian Reichert. Longitudinal precision oncology platform to identify chemotherapy-induced vulnerabilities in pancreatic cancer [abstract]. In: Proceedings of the AACR Virtual Special Conference on Pancreatic Cancer; 2021 Sep 29-30. Philadelphia (PA): AACR; Cancer Res 2021;81(22 Suppl):Abstract nr PO-070.
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Affiliation(s)
- Katja Peschke
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Hannah Jakubowski
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Arlett Schäfer
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Carlo Maurer
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Sebastian Lange
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Felix Orben
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Raquel Bernad
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Felix Harder
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Matthias Eiber
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Rupert Öllinger
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Melissa Schlitter
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Wilko Weichert
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Veit Phillip
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Christoph Schlag
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Roland Schmid
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Rickmer Braren
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Bo Kong
- 2University of Ulm, Ulm, Germany
| | - Ekin Demir
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Helmut Friess
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Roland Rad
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Dieter Saur
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
| | - Günter Schneider
- 1Technical University of Munich, Klinikum rechts der Isar, Munich, Germany,
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Demir E, Yalçın G, Kalaycı A, Sağlam H. Biomechanical evaluation of caudally and buccally screwed customised reconstruction plates for lateral segmental defects of mandible. Br J Oral Maxillofac Surg 2021; 59:928-934. [PMID: 34454776 DOI: 10.1016/j.bjoms.2020.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/23/2020] [Indexed: 10/23/2022]
Abstract
The aim of this study was to compare locking reconstruction plates with caudobuccally screwed custom mandibular reconstruction plates in bridging lateral mandibular segmental defects. The in vitro study was conducted on 13 polyurethane mandibles. A total of 7 mandibles with lateral segmental defects were bridged with locking reconstruction plates in group I, 6 mandibles with the same standard defect were bridged with caudobuccally screwed customised reconstruction plates in group II. Mean yield displacement, yield load, and displacement at 80 N (Newtons), 100 N, 200 N, 300 N loading were compared among the 2 groups. The mean (SD) displacement for Group I was 11.27 (3.6) mm, Group II was 21.08 (2.5) mm. Group II had significantly greater (p=0.0001) displacement when compared with Group I. The mean (SD) force before failure for Group I was 638.4 N (127.2), Group II was 1398. 3 N (162.7). Group II withstood significantly greater force than Group I (p=0.0001). The study reveals that the caudobuccally screwed custom reconstruction plates can significantly enhance yield load as preserving the preoperative shape of the face and mandible.
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Affiliation(s)
- E Demir
- Department of Oral and Maxillofacial Surgery, Selçuk University Faculty of Dentistry, Konya, Turkey.
| | - G Yalçın
- Department of Mechanics of Materials, Selçuk University Faculty of Technology, Konya, Turkey
| | - A Kalaycı
- Department of Oral and Maxillofacial Surgery, Selçuk University Faculty of Dentistry, Konya, Turkey
| | - H Sağlam
- Department of Mechanics of Materials, Selçuk University Faculty of Technology, Konya, Turkey
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Alkış H, Demir E, Taysi M, Sagir S, Taysi S. PO-1913 Effects of Nigella sativa oil and thymoquinone on radiation-induced oxidative stress in rat kidney. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08364-x] [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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Daniels M, Becker M, Lefering R, Fuchs P, Demir E, Schulz A, Perbix W, Grigutsch D, Schiefer J. Influence Of Pre-Existing Neurological Illnesses On The Outcome Of Severe Burn Injuries. Ann Burns Fire Disasters 2021; 34:26-32. [PMID: 34054384 PMCID: PMC8126361] [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] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/31/2020] [Indexed: 06/12/2023]
Abstract
It is known that patients suffering from neurological illnesses have an increased risk of burn injuries. These burns are often very severe and lead to poor outcomes. To date, only a few studies have evaluated the impact of pre-existing neurological illnesses on the outcome of burn injuries. None of them performed a regression analysis regarding specific influence on mortality. Between 1996 and 2016, 1475 patients were admitted to the BICU of a specialized German burn center: 26 had less than 1% TBSA burned and were excluded; 177 had pre-existing neurological disorders (group N). 87 patients with psychological disorders were excluded. 1185 patients without neurological or psychological disorders formed the control group. Length of hospital stay, TBSA and number of operations were analyzed using the chi-squared test and Mann-Whitney U-test. Additionally, mortality was evaluated using the logistic regression analysis adjusted for known outcome predictors. Mean age of the patients in the control group was 41.53 years with a BICU stay of 18 days, TBSA of 18.25% and mortality rate of 12.4%; 23.7% had inhalation injuries. Patients in group N had a mean age of 54.63 years, a BICU stay of 27 days, mean TBSA of 20.97%; 31.1% had inhalation injuries and mortality was 20.3%. Patients with neurological disorders were older and showed higher affected TBSA, higher rates of inhalation injury, mortality and affected TBSA, and a longer stay in the BICU compared to the control group. Nevertheless, pre-existing neurological disorders alone had no significant influence on mortality.
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Affiliation(s)
- M. Daniels
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - M. Becker
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - R. Lefering
- Institute for Research in Operative Medicine (IFOM), University of Witten/Herdecke, Cologne, Germany
| | - P.C. Fuchs
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - E. Demir
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - A. Schulz
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - W. Perbix
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - D. Grigutsch
- Clinic of Anesthesiology, University Hospital Bonn, Germany
| | - J.L. Schiefer
- Clinic of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
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Ertan F, Azak C, Karakaya E, Kilicoglu S, Demir E, Goksel F, Altundağ M, Kaya B. Assessment of the Reproducibility of Deep Inspiration Breath Hold Technique During Left-Sided Breast Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.819] [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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Demir E, Nalbantgil S, Ozturk P, Candemir A, Kahraman U, Engin C, Yagdi T, Saeed O, Jorde U, Ozbaran M. Device thrombosis in the Heartware LVAD treatment decision and role of log files. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1102] [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
Device thrombosis is a significant problem during durable LVAD support, and device-specific diagnosis and treatment algorithms are necessary to optimize outcomes. The HVAD LVAD has a unique and well-developed logfile capability, yet clinical data on it's use are lacking.
Methods and results
We reviewed overall outcomes of 322 consecutive patients implanted at our University Medical Center with the HVAD LVAS with a particular emphasis on device thrombosis events. Thirty days, one year, and two years survival was 85.4%,65.0%, and 53.1%, respectively. One hundred eighty-one device thrombosis events occurred in 76 patients. Based on logfile patterns, events were categorized as gradual build-up or sudden build-up or acute occlusion/ingestion (Jorde U JACC-HF 2015). The first thrombosis event was a gradual build-up in 32, sudden build up in 5, and acute occlusion in 11 pts. An additional 46 gradual build-up, two sudden build-up, nine acute occlusion events occurred as recurrent events. 2-year survival without CVA was 72.8% in patients with gradual onset device thrombosis
72 pts received TPA. TPA was given, after discontinuing anticoagulation, and taking the INR level is under 2.0 and keeping invasively measured mean arterial blood pressure between 65–80 mmHg low dose tenecteplase (1000 units) was then given, and if clinical and logfile improvement did not occur repeated every six hours up to a total fo 4 doses (4000 units) over 24 hours. Successful therapy was defined as clinical resolution of pump thrombosis without recurrence in 30 days, LDH improvement and power consumption returned to normal, and occurred in 74.4% gradual onset, 71.4% sudden onset, and 56.3% acute occlusion. TPA was complicated by severe hemorrhage or death in 6.4% of patienst with a gradual build-up pattern, 14.3% with sudden build-up, and in 33.3% with acute occlusion.
Conclusion
Device thrombosis frequently occurs in HVAD patients, and response to therapy can be predicted by logfile analysis. TPA is an excellent option for gradual onset device thrombosis but should be avoided in the setting of acute occlusions, where early device exchange may be a better first-line strategy. Refinement of logfile analysis including earlier thrombus detection and incorporation of these techniques into clinical practice may significantly improve outcomes with the HVAD LVAD.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- E Demir
- Ege University, Medicine Faculty Cardiology Department, Izmir, Turkey
| | - S.N Nalbantgil
- Ege University, Medicine Faculty Cardiology Department, Izmir, Turkey
| | - P.O Ozturk
- Ege University, Medicine Faculty Cardiovascular Surgery Department, Izmir, Turkey
| | - A.C Candemir
- Ege University, Medicine Faculty Cardiology Department, Izmir, Turkey
| | - U.K Kahraman
- Ege University, Medicine Faculty Cardiovascular Surgery Department, Izmir, Turkey
| | - C.E Engin
- Ege University, Medicine Faculty Cardiovascular Surgery Department, Izmir, Turkey
| | - T.Y Yagdi
- Ege University, Medicine Faculty Cardiovascular Surgery Department, Izmir, Turkey
| | - O.S Saeed
- Montefiore Medical Center (Bronx), Cardiology, New York, United States of America
| | - U.J Jorde
- Montefiore Medical Center (Bronx), Cardiology, New York, United States of America
| | - M.O Ozbaran
- Ege University, Medicine Faculty Cardiovascular Surgery Department, Izmir, Turkey
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Silverberg O, Demir E, Mishler G, Hosoume B, Trivedi N, Tisch C, Plascencia D, Pak OS, Araci IE. Realization of a push-me-pull-you swimmer at low Reynolds numbers. Bioinspir Biomim 2020; 15:064001. [PMID: 32620000 DOI: 10.1088/1748-3190/aba2b9] [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] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
Locomotion at low Reynolds numbers encounters stringent physical constraints due to the dominance of viscous over inertial forces. A variety of swimming microorganisms have demonstrated diverse strategies to generate self-propulsion in the absence of inertia. In particular, ameboid and euglenoid movements exploit shape deformations of the cell body for locomotion. Inspired by these biological organisms, the 'push-me-pull-you' (PMPY) swimmer (Avron J Eet al2005New J. Phys.7234) represents an elegant artificial swimmer that can escape from the constraints of the scallop theorem and generate self-propulsion in highly viscous fluid environments. In this work, we present the first experimental realization of the PMPY swimmer, which consists of a pair of expandable spheres connected by an extensible link. We designed and constructed robotic PMPY swimmers and characterized their propulsion performance in highly viscous silicone oil in dynamically similar, macroscopic experiments. The proof-of-concept demonstrates the feasibility and robustness of the PMPY mechanism as a viable locomotion strategy at low Reynolds numbers.
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Affiliation(s)
- O Silverberg
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - E Demir
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
- Beijing Computational Science Research Center, Beijing 100193, China
| | - G Mishler
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - B Hosoume
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - N Trivedi
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - C Tisch
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - D Plascencia
- Department of Bioengineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - O S Pak
- Department of Mechanical Engineering, Santa Clara University, 500 El Camino Real, CA 95053, United States of America
| | - I E Araci
- Beijing Computational Science Research Center, Beijing 100193, China
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17
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Kiraz M, Demir E. Relationship of lumbar disc degeneration with hemoglobin value and smoking. Neurochirurgie 2020; 66:373-377. [PMID: 32866500 DOI: 10.1016/j.neuchi.2020.06.133] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/06/2020] [Accepted: 06/28/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND/OBJECTIVE Although a number of studies report an important effect of smoking on disc degeneration and herniation, others did not identify such a relationship. The purpose of this study was to assess the relationship of lumbar disc degeneration with hemoglobin value and smoking. METHODS The study included 200 adult patients who presented to the neurosurgery polyclinic with a complaint of back pain. Smoking habits were classified as "smoking for more than 10 years", "smoking for less than 10 years", and "not smoking". Lumbar disc degeneration was classified on modified Pfirrmann score according to lumbar MR images. Degeneration level was compared according to smoking group on Kruskal-Wallis test. The relationship between hemoglobin value and disc degeneration according to smoking group was assessed on the Spearman correlation coefficient. RESULTS Disc degeneration values were significantly different between groups in L5-S1, L4-L5 and L3-L4 (P=0.018, P=0.012, P=0.038). Degeneration levels in L5-S1 in those who did not smoke were significantly lower than in those who smoked for both less and more than 10 years (P=0.048, P=0.022). No significant differences were found in degeneration level between those who smoked for more versus less than 10 years. For L3-L4 degeneration, there was a significant relationship with hemoglobin value in the group that did not smoke and in the group that smoked for more than 10 years (r=-0.395; P=0.009, r=0.329; P=0.018). CONCLUSION This study found that, when risk factors such as systemic disease, heavy working conditions, obesity, trauma and family history were excluded, smoking increased lumbar disc degeneration. In addition, chronic smoking was found to increase hemoglobin values.
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Affiliation(s)
- M Kiraz
- Department of Neurosurgery, Faculty of Medicine, Hitit University, Çorum, Turkey.
| | - E Demir
- Department of Biostatistics, Faculty of Medicine, Hitit University, Çorum, Turkey
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18
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Hettler F, Schreck C, Marquez SR, Sippenauer T, Koller F, Demir E, Bassermann F, Istvanffy R, Oostendorp R. 2010 – MICROENVIRONMENTAL SFRP1 REGULATES REPOPULATING ACTIVITY OF HEMATOPOIETIC STEM CELLS VIA PP2A-MEDIATED REGULATION OF CTNNB1/EP300. Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.172] [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: 11/17/2022]
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19
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Demir E, Akmeşe Ö, Erbay H, Taylan-Özkan A, Mumcuoğlu K. Bibliometric analysis of publications on house dust mites during 1980-2018. Allergol Immunopathol (Madr) 2020; 48:374-383. [PMID: 32284264 DOI: 10.1016/j.aller.2020.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/08/2020] [Accepted: 01/29/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND The global prevalence of allergic diseases has increased dramatically in recent years and are now recognized as significant chronic diseases worldwide. One of the most important allergens that causes allergic diseases is house dust mites. OBJECTIVE This study aims to present a bibliometric overview of research published on dust mites between 1980 and 2018. METHODS Articles published from 1980 to 2018 were analyzed using bibliometric methods. The keywords "Dust mite*," and "Dermatophagoides" were used in the Web of Science (WoS). Simple linear regression analysis was used to estimate the number of future publications on this subject. RESULTS A total of 4742 publications were found, 2552 (53.8%) of them were articles. Most of the articles were on subjects related to immunology (1274; 49.9%) and allergy (1229; 48.1%). Clinical and Experimental Allergy (222; 8.7%) was the journal with the most publications. The USA was the country that most contributed to the literature with 461 (18.1%) articles. The countries producing the most publications on this subject were developed countries. The most active author was W.R. Thomas (66; 2.5%). The most productive institution was the University of Western Australia (91; 3.6%). The most cited article was published in the New England Journal of Medicine. CONCLUSION According to the findings, developed countries were the most productive in publishing on house dust mites. By planning multinational research rather than regional studies, it may be suggested that researchers in underdeveloped or developing countries could also conduct more research on this subject.
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20
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Onay Z, Gursoy TR, Aslan A, Eyuboglu TS, Cakir E, Cobanoglu N, Pekcan S, Cinel G, Dogru D, Ozcelik U, Yalcin E, Sen V, Ercan O, Kilinc A, Yazan H, Altintas D, Demir E, Bingol A, Sapan N, Celebi E, Tugcu G, Ozdemir A, Harmanci K, Kose M, Emiralioglu N, Tamay Z, Yuksel H, Ozcan G, Topal E, Can D, Korkmaz P, Caltepe G, Kilic M, Ozdogan S. P060 Indications and contraindications for lung transplantation of cystic fibrosis patients in Turkey. J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30396-9] [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: 11/29/2022]
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21
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Baheerathan NN, Sayan A, Demir E, Ilankovan V. Outcome of eminectomy combined with discectomy and silastic interpositional graft for temporomandibular joint dysfunction: a retrospective study of 20 years. Br J Oral Maxillofac Surg 2020; 58:854-860. [PMID: 32456994 DOI: 10.1016/j.bjoms.2020.04.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/10/2020] [Indexed: 10/24/2022]
Abstract
Internal derangement of the temporomandibular joint (TMJ) is usually treated conservatively, but about 5% require surgical treatment. We designed a retrospective study to assess the long-term outcomes of eminectomy combined with discectomy and silastic interpositional graft in 44 patients who had chronic TMJ dysfunction that had not responded to traditional conservative treatment and arthrocentesis. The maximum mouth opening, pain score, Wilkes stage, and clinical dysfunction index were measured before, and two years after, operation. All the patients showed significant improvement in mouth opening and reduced pain scores (p<0.0001 in each case). There were no long-term operative complications, and postoperative magnetic resonance scans showed that the silastic interpositional graft was in a stable position with no evidence of degenerative changes on the surfaces of the joint and no lymphadenopathy.
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Affiliation(s)
- N N Baheerathan
- Poole Hospital NHS Foundation trust, Longfleet Road, Poole, Dorset, BH15 2JB.
| | - A Sayan
- Poole Hospital NHS Foundation trust, Longfleet Road, Poole, Dorset, BH15 2JB
| | - E Demir
- Poole Hospital NHS Foundation trust, Longfleet Road, Poole, Dorset, BH15 2JB
| | - V Ilankovan
- Poole Hospital NHS Foundation trust, Longfleet Road, Poole, Dorset, BH15 2JB
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22
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Demir E, Abdelhai K, Demir IE, Jäger C, Scheufele F, Schorn S, Rothe K, Friess H, Ceyhan GO. Association of bacteria in pancreatic fistula fluid with complications after pancreatic surgery. BJS Open 2020; 4:432-437. [PMID: 32297478 PMCID: PMC7260411 DOI: 10.1002/bjs5.50272] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/19/2020] [Accepted: 01/28/2020] [Indexed: 01/08/2023] Open
Abstract
Background Pancreatic fistula (PF) is a common complication after pancreatic surgery. It is unclear how microbes in PF fluid affect outcomes and which microbes are present after pancreatoduodenectomy (PD) and distal pancreatectomy (DP). The aim of this study was to compare the microbiological spectrum of PF fluid after PD versus DP, and its association with postoperative complications. Methods Bacterial strains and antibiotic resistance rates of bacterial swabs obtained from the PF fluid of patients who underwent DP or PD were analysed. Cultured bacteria were classified as Enterobacterales and as ‘other intestinal and non‐intestinal microorganisms’ based on whether they are typically part of the normal human intestinal flora. Results A total of 847 patients had a pancreatic resection (PD 600; DP 247) between July 2007 and December 2016. Clinically relevant PF was detected in 131 patients (15·5 per cent). Bacterial swabs were obtained from 108 patients (DP 47; PD 61), of which 19 (17·6 per cent) were sterile. Enterobacterales were detected in 74 per cent of PF fluid swabs after PD, and in 34 per cent after DP. Infected, polymicrobial or multidrug‐resistant PF fluid was more common after PD (rates of 95, 50 and 48 per cent respectively) than after DP (66, 26 and 6 per cent respectively). Patients with higher grade complications (Clavien–Dindo grade IV–V) or grade C PF had more Enterobacterales and multidrug‐resistant Enterobacterales in the PF fluid after
DP. Conclusion Enterobacterales and multidrug‐resistant bacteria are detected frequently after PD and DP, and are associated with more severe complications and PF in patients undergoing
DP.
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Affiliation(s)
- E Demir
- Department of Surgery, Munich, Germany
| | | | - I E Demir
- Department of Surgery, Munich, Germany.,Hepato-Pancreato-Biliary Unit, Department of General Surgery, Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey
| | - C Jäger
- Department of Surgery, Munich, Germany
| | | | - S Schorn
- Department of Surgery, Munich, Germany
| | - K Rothe
- Institute for Microbiology, Immunology and Hygiene, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - H Friess
- Department of Surgery, Munich, Germany
| | - G O Ceyhan
- Department of Surgery, Munich, Germany.,Hepato-Pancreato-Biliary Unit, Department of General Surgery, Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey
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23
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Ozturk P, Ozturk T, Demir E, Kahraman U, Engin C, Yagdi T, Nalbantgil S, Ozbaran M. Eye of Stranger: Evaluate of Chorioretinal Microvascular Networks on Ventricular Assist Device. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.164] [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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24
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Simsek E, Tamnik F, Demir E, Nalbantgil S. P3140Burden and the clinical significance of the retained cardiac implantable electronic device components after heart transplantation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0215] [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
Cardiovascular implantable electronic devices (CIEDs) are common in patients undergoing heart transplantation (HT), and complete removal is not always possible at the time of transplantation. Frequency and clinical significance of retained CIED components after HT is not well studied.
Methods
Adult heart failure patients whom had heart transplantation in our institution from date June 2000 to December 2018 were retrospectively evaluated. Pre-post operative chest x-rays and recorded fluoroscopy images of the previous coronary angiograms or endomyocardial biopsies were reviewed by a single observer for retained CIED components. All patients clinical records were also reviewed for adverse outcomes of retained components such as deep venous thrombosis of upper extremity, infection and mortality.
Results
A total of 226 patients had bicaval orthotopic heart transplantation during study time. 73 (32%) of the patients had CIED before transplantation and 24 (32.8%) of the patients had retained lead components after HT. (Table 1) All of the components were part of a superior vena cava coil of the right ventricular ICD lead. Mean follow up time was 46.6±49.8 months and only 1 (1.3%) adverse event (right subclavian DVT) occurred in a patient with retained lead. There were not any statistical significance for mortality and infection between patients with and without lead fragments. Patients were also compared for history of any cardiac surgery before HT, especially ventricular assist device procedures and no differences were observed between groups.
For history of any cardiac surgery p=0.748, for assist device surgery, p=0.269). Patient's medical records reviewed for a history of magnetic resonance imaging (MRI). Two patients with retained lead fragments had non-thorocic (abdominal and cranial) MRI and any clinical pathology did not observed after MRI.
Table 1 All Patients With Retained CIED comp. Without Retained CIED comp. p (n=226) (n=24) (n=49) Age ± sd 42.91±12.2 44.88±12.6 41.59±13 0.290 Ischemic etiology 65 (28.8%) 8 (33.3%) 13 (26.5%) 0.546 CIED type CRT-D 5 (20.8%) 5 (%10.2) 0.215 DR-ICD 5 (20.8%) 8 (16.3%) 0.636 VR-ICD 14 (58.3%) 35 (71.4%) 0.263 Dual coil ICD lead 24 (100%) 48 (97%) 1 Mortality (%) 96 (42.5) 7 (37%) 20 (40.8%) 0.463
Conclusion
Retained CIED components were seen 32.8% of the HT patients with CIED prior to transplantation. According to our data retained leads are not associated with severe adverse clinical outcomes. Also non cardiac MRI could be safe in patients with retained lead fragments.
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Affiliation(s)
- E Simsek
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - F Tamnik
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - E Demir
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - S Nalbantgil
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
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Akhan O, Demir E, Bayraktaroglu S, Ozerkan Cakan F, Nalbantgil S. P462Noncompaction cardiomyopathy and cardiac MR imaging in Ege University. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez118.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- O Akhan
- Ege University, Cardiology Department, Izmir, Turkey
| | - E Demir
- Ege University, Cardiology Department, Izmir, Turkey
| | | | | | - S Nalbantgil
- Ege University, Cardiology Department, Izmir, Turkey
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26
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Ciftci HS, Tefik T, Savran MK, Demir E, Caliskan Y, Ogret YD, Oktar T, Sanlı O, Kocak T, Ozluk Y, Oguz FS, Kilicaslan I, Aydın F, Turkmen A, Nane I. Urinary CXCL9 and CXCL10 Levels and Acute Renal Graft Rejection. Int J Organ Transplant Med 2019; 10:53-63. [PMID: 31285802 PMCID: PMC6604756] [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] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND Monitoring of chemokines, CXCL9 and CXCL10, in serum may present a non-invasive detection method for rejection. OBJECTIVE To investigate the relationship between urinary levels of CXCL9 and CXCL10 and graft function following renal transplantation. METHODS 75 living-related donor renal transplant recipients were studied. Urinary levels of chemokines were collected pre-operatively, on post-operative 1st day, 7th day, 1st month, 3rd month, and at the time of rejection. Chemokines levels were assayed using and enzyme-linked immunosorbent assay. RESULTS Clinical variables were monitored. 10 (15%) patients had biopsy-proven rejection during the follow-up period. The urinary CXCL9 level in those with rejection was significantly higher than that in those with non-rejection group at the 1st day (p<0.001), 7th day (p<0.001), and at the time of rejection (p=0.002). The urinary CXCL10 level was also significantly higher in those with rejection compared with non-rejection group at 1st day (p<0.001), 7th day (p<0.001), and at the time of rejection (p=0.001). Serum creatinine level was strongly correlated with the urinary CXCL9 and CXCL10 levels at the time of rejection (r=0.615, p=0.002; and r=0.519, p=0.022, respectively). Among those with T cell-mediated rejections the mean urinary CXCL10 level increased to as high as 258.12 ng/mL. CONCLUSION Urinary CXCL9 and CXCL10 levels might have a predictive value for T cell-mediated rejection in early post-transplantation period. Measurement of urinary CXCL9 and CXCL10 levels could provide an additional tool for the diagnosis of rejection.
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Affiliation(s)
- H. S. Ciftci
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - T. Tefik
- Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - M. K. Savran
- Department of Anesthesia, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - E. Demir
- Department of Nephrology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Y. Caliskan
- Department of Nephrology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Y. D. Ogret
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - T. Oktar
- Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - O. Sanlı
- Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - T. Kocak
- Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Y. Ozluk
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - F. S. Oguz
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - I. Kilicaslan
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - F. Aydın
- Department of Medical Biology and Genetics, Faculty of Medicine, Istanbul Bilim University, Istanbul, Turkey
| | - A. Turkmen
- Department of Nephrology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - I. Nane
- Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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27
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Khishigsuren B, Demir E, Akgul S, Temurhan S, Ucar A, Dirim A, Catikkas N, Bayraktar A, Caliskan Y, Yazici H, Oguz F, Turkmen A, Sever M. Panel Reactive Antibody Responses Against Influenza Vaccination in Kidney Transplant Recipients. Transplant Proc 2019; 51:1115-1117. [DOI: 10.1016/j.transproceed.2019.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/09/2019] [Accepted: 02/16/2019] [Indexed: 11/15/2022]
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28
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Demir E, Nalbantgil S, Öztürk P, Simsek E, Engin C, Yağdı T, Özbaran M. Efficacy and Safety of Ferric Carboxymaltose Therapy in Continuous Flow LVAD Patients. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.953] [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: 10/27/2022] Open
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29
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Uzun H, Demir E, Simsek E, Capanoglu T, Karapolat H, Engin C, Yagdi T, Ozturk P, Ozbaran M, Nalbantgil S. Frailty and Clinical Outcomes Following Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.190] [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: 10/27/2022] Open
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30
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Bayraktar A, Dirim AB, Bakkaloglu H, Kaan Gok AF, Demir E, Ucar AR, Turkmen A, Aydin AE. Deceased Donor Kidney Transplantation in a Human Immunodeficiency Virus-Infected Recipient: A Case Report. Transplant Proc 2019; 51:1187-1189. [PMID: 31101197 DOI: 10.1016/j.transproceed.2019.01.102] [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] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/21/2019] [Indexed: 11/27/2022]
Abstract
Human immunodeficiency virus (HIV) infection has traditionally been considered an absolute contraindication for transplantation because immunosuppression will accelerate the disease progression and increase mortality. New antiretroviral agents have given rise to new perspectives and transplantation practices. Now renal transplantation is the gold standard treatment for end-stage renal disease in HIV-infected patients, but increased rejection and toxicity rates and compliance with treatment are important issues. Therefore, patient selection and follow-up should be done carefully in this patient group. Here we present a 51-year-old, male, HIV-infected patient who was diagnosed with HIV at his routine serologic investigation at 2015. Highly active antiretroviral therapy was initiated. One haplotype-matched kidney transplantation from a deceased donor was performed on October 19, 2016. Induction therapy was not administered, and the immunosuppressive regimen included tacrolimus, mycophenolate mofetil, and prednisolone. After 26 months, serum creatinine was 1.1 mg/dL and proteinuria 0.1 g/day. There was no development of donor-specific antibodies. The patient's current HIV viral load remains undetectable (and had been the entire time post-transplantation) while his CD4+ T-cell count currently is 543/mm3.
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Affiliation(s)
- A Bayraktar
- Department of General Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A B Dirim
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - H Bakkaloglu
- Department of General Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A F Kaan Gok
- Department of General Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - E Demir
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
| | - A R Ucar
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A Turkmen
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A E Aydin
- Department of General Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Ciftci HS, Demir E, Karadeniz MS, Tefik T, Nane I, Oguz FS, Aydin F, Turkmen A. Influence of uridine diphosphate-glucuronosyltransferases (1A9) polymorphisms on mycophenolic acid pharmacokinetics in patients with renal transplant. Ren Fail 2018; 40:395-402. [PMID: 30012031 PMCID: PMC6052413 DOI: 10.1080/0886022x.2018.1489285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: There are differences in pharmacokinetic of mycophenolic acid among individuals. The UGT1A9 enzyme is of special interest since it is the main enzyme involved in the glucuronidation of MPA. Single nucleotide polymorphisms in the UGT1A9 gene may be responsible for individual differences in the pharmacokinetics of MPA. The aim of this study was to explain MPA pharmacokinetics in UGT1A9 1399 C > T polymorphisms in Turkish renal transplant patients. Patients and methods: One hundred and twenty-five living-donor transplant recipients and 100 healthy control subjects underwent UGT1A9 1399 C > T genotyping using polymerase chain reaction–restriction fragment length polymorphism. Concentrations of MPA were determined with Cloned Enzyme Donor Immunoassay (CEDIA). Besides that, all the patients were monitored for acute rejection and graft function during the study period. Results: The UGT1A9 1399 C > T CC, CT, and TT genotype frequencies among patients were, respectively, 68.0%, 23.2%, and 8.8%. The CC, CT, and TT genotype frequencies among controls were, respectively, 63.0%, 23.0%, and 14.0%. There was no significant difference between patients and controls (p = .480, p = .999, p = .286, respectively). At first month, respectively, through blood concentrations of MPA were significantly higher in UGT1A9 1399 C > T TT carriers than in CT and CC carriers (p = .046). The doses for these patients were lower at first month (p = .021). Acute rejection episodes were not associated with the CC vs CT or TT genotypes (p = .064). Conclusions: Our results demonstrated a correlation between the UGT1A9 1399 C > T polymorphism and MPA pharmacokinetics among renal transplant patients. Determination of UGT1A9 polymorphism may help to achieve target of MPA blood concentrations.
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Affiliation(s)
- H S Ciftci
- a Department of Medical Biology, Istanbul Faculty of Medicine , Istanbul University , Istanbul , Turkey
| | - E Demir
- b Department of Nephrology , Istanbul Faculty of Medicine, Istanbul University , Istanbul , Turkey
| | - M S Karadeniz
- c Department of Anesthesia , Istanbul Faculty of Medicine, Istanbul University , Istanbul , Turkey
| | - T Tefik
- d Department of Urology , Istanbul Faculty of Medicine, Istanbul University , Istanbul , Turkey
| | - I Nane
- d Department of Urology , Istanbul Faculty of Medicine, Istanbul University , Istanbul , Turkey
| | - F S Oguz
- a Department of Medical Biology, Istanbul Faculty of Medicine , Istanbul University , Istanbul , Turkey
| | - F Aydin
- e Department of Medical Biology and Genetics , Faculty of Medicine, Istanbul Bilim University , Istanbul , Turkey
| | - A Turkmen
- b Department of Nephrology , Istanbul Faculty of Medicine, Istanbul University , Istanbul , Turkey
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Yuce EI, Demir E, Simsek E, Ozturk P, Parildar Z, Engin Ç, Yagdi T, Ozbaran M, Nalbantgil S, Gurgun C. P5118Changes in plasma neprilysin levels after left ventricular assist device implantation and association with short-term outcomes. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/12/2022] Open
Affiliation(s)
- E I Yuce
- Ege University, cardiology department, Izmir, Turkey
| | - E Demir
- Ege University, cardiology department, Izmir, Turkey
| | - E Simsek
- Ege University, cardiology department, Izmir, Turkey
| | - P Ozturk
- Ege University, cardiovascular surgery department, Izmir, Turkey
| | - Z Parildar
- Ege University, biochemistry department, Izmir, Turkey
| | - Ç Engin
- Ege University, cardiovascular surgery department, Izmir, Turkey
| | - T Yagdi
- Ege University, cardiovascular surgery department, Izmir, Turkey
| | - M Ozbaran
- Ege University, cardiovascular surgery department, Izmir, Turkey
| | - S Nalbantgil
- Ege University, cardiology department, Izmir, Turkey
| | - C Gurgun
- Ege University, cardiology department, Izmir, Turkey
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Simsek E, Bayazit Y, Demir E, Kayikcioglu M, Nalbantgil S, Mogolkoc N, Can L, Kultursay H. P3558Comparison of cardiac output measurement methods for mortality prediction in pulmonary hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E Simsek
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - Y Bayazit
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - E Demir
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - M Kayikcioglu
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - S Nalbantgil
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - N Mogolkoc
- Ege University, Faculty of Medicine, Department of Pulmonology, Izmir, Turkey
| | - L Can
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - H Kultursay
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
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Ozturk P, Demir E, Sahutoglu C, Engin C, Yagdi T, Nalbantgil S, Ozbaran M. Heartmate 3 versus Heartmate 2: Is New Always Better ? J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.683] [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: 10/17/2022] Open
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Demir E, Nalbantgil S, Öztürk P, Şahutoğlu C, Engin Ç, Yağdı T, Özbaran M. Treatment of Pump Thrombosis With Low Dose Thrombolytic Therapy in Heartware HVAD Left Ventricular Assist Devices: Single Center Experience. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.134] [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: 11/25/2022] Open
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Simsek E, Nalbantgil S, Demir E, Ozbay B, Mammadov G, Candemir A, Kilic S, Ozturk P, Engin C, Yagdi T, Ozbaran M. P1122T peak to T end interval changes before and after left ventricular assist device implantation. Europace 2018. [DOI: 10.1093/europace/euy015.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- E Simsek
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - S Nalbantgil
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - E Demir
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - B Ozbay
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - G Mammadov
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - A Candemir
- Ege University, Faculty of Medicine, Department of Cardiology, Izmir, Turkey
| | - S Kilic
- Dr. Ersin Arslan Training and Research Hospital, Cardiology, Gaziantep, Turkey
| | - P Ozturk
- Ege University, Faculty of Medicine, Department of Cardiovascular Surgery, Izmir, Turkey
| | - C Engin
- Ege University, Faculty of Medicine, Department of Cardiovascular Surgery, Izmir, Turkey
| | - T Yagdi
- Ege University, Faculty of Medicine, Department of Cardiovascular Surgery, Izmir, Turkey
| | - M Ozbaran
- Ege University, Faculty of Medicine, Department of Cardiovascular Surgery, Izmir, Turkey
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Demir E, Nalbantgil S, Kayikcioglu M, Mogulkoc N, Kultursay H. P731The relationship between the right ventricular hemodynamic parameters with clinical and echocardiographic prognostic parameters in patients with pulmonary arterial hypertension. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p731] [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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38
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Afsarlar CE, Elizondo R, Yilmaz E, Cakmakci E, Ballow DJ, Demir E, Guney G, Koh CJ. Ultrasonographic findings in the epididymis of pediatric patients with testicular torsion. J Pediatr Urol 2017; 13:393.e1-393.e6. [PMID: 28713006 DOI: 10.1016/j.jpurol.2017.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 05/20/2017] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Although grayscale ultrasound and color Doppler ultrasound characteristics of the torsed testis are well established in the literature, less is known about its anatomic partner: the epididymis. OBJECTIVE The purpose of this study was to describe the ultrasound characteristics of the epididymis in pediatric patients with testicular torsion, and to describe their potential role as prognostic criteria for testicular salvage outcomes. STUDY DESIGN During a retrospective review of 217 pediatric patients with acute testicular torsion during 2009-2016, morphological features of the epididymis from scrotal ultrasounds (size, parenchymal characteristics, and vascular flow of both epididymis heads), as well as patient demographics, time duration, surgical outcomes, histopathology results, and follow-up periods were analyzed. RESULTS Mean epididymis size and twisting degree were significantly higher in the torsed testes than in the contralateral epididymis (P < 0.001) (Summary table). Cystic structures in the epididymis were identified: a higher number of cysts was associated with testicular non-viability (P = 0.025) and higher twisting degree (P = 0.017). Histopathologic examination showed that these spaces were infiltrated connective tissue most likely formed by venous congestion and vessel rupture. DISCUSSION Scrotal ultrasound can provide information on testicular morphology and viability, as well as morphological changes in the epididymis over time in pediatric patients with testicular torsion. These findings may provide potential prognostic information regarding testicular viability, as a higher number of cystic spaces in the epididymis was associated with a higher rate of testicular non-viability and a higher twisting degree. In addition, the epididymis size (volume) can change during the time course of the ischemic state. CONCLUSIONS This was the first study to describe and analyze epididymis ultrasound findings in pediatric patients with testicular torsion and to correlate them with testicular salvage outcomes. Further prospective studies are needed to determine the role of epididymis ultrasound findings as a potential pre-operative prognostic tool.
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Affiliation(s)
- C E Afsarlar
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX, USA; Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA; Department of Pediatric Surgery, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - R Elizondo
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX, USA; Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA
| | - E Yilmaz
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX, USA; Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA; Department of Pediatric Surgery, Dr. Sami Ulus Maternity, Children's Health and Diseases Training and Research Hospital, Ankara, Turkey
| | - E Cakmakci
- Department of Radiology, Dr. Sami Ulus Maternity, Children's Health and Diseases Training and Research Hospital, Ankara, Turkey
| | - D J Ballow
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX, USA; Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA
| | - E Demir
- Department of Biostatistics, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - G Guney
- Department of Pathology, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - C J Koh
- Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, Houston, TX, USA; Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA
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Temurhan S, Akgul SU, Caliskan Y, Artan AS, Kekik C, Yazici H, Demir E, Caliskan B, Turkmen A, Oguz FS, Sever MS. A Novel Biomarker for Post-Transplant Recurrent IgA Nephropathy. Transplant Proc 2017; 49:541-545. [PMID: 28340830 DOI: 10.1016/j.transproceed.2017.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND The serum levels of galactose-deficient immunoglobulin (Ig)A1 (Gd-IgA1) represent the most promising candidate biomarker for IgA nephropathy (IgAN). The aim of this study was to evaluate the serum levels of Gd-IgA1 as a novel noninvasive biomarker for post-transplant IgAN recurrence. METHODS Serum Gd-IgA1 levels of 18 patients with recurrent IgAN were compared with control renal transplant recipients (n = 23) with non-recurrent IgAN and control non-transplant IgAN patients (n = 44) and healthy relatives (n = 11). Serum Gd-IgA1 levels of patients were measured with the use of KM55 enzyme-linked immunosorbent assay (ELISA). The effects of serum Gd-IgA1 concentrations on IgAN recurrence, post-transplant events, and graft survival were evaluated. RESULTS All recurrent IgAN patients presented with renal dysfunction (mean serum creatinine, 1.62 ± 0.39 mg/dL) and detectable proteinuria at the time of diagnosis. Serum Gd-IgA1 levels of recurrent IgAN patients (8735 ± 10854 ng/mL [log10: 3.71 ± 0.45]) were significantly higher than those of non-recurrent IgAN patients (4790 ± 6089 ng/μL [log10: 3.31 ± 0.64]) (P = .027). Serum Gd-IgA1 levels of non-transplant IgAN patients were significantly higher (8791 ± 8700 ng/μL [log10: 3.79 ± 0.36]) than those of non-recurrent IgAN patients (4790 ± 6089 ng/μL [log10: 3.31 ± 0.64]) and healthy relatives (2615 ± 1611 ng/μL [log10: 3.34 ± 0.27]) (P < .001 and P = .021, respectively). Receiver-operating characteristic curve analysis revealed that the area under the curve for recurrence of IgAN was 0.69 (0.53-0.85) for serum Gd-IgA1 (P = .038). Biopsy-confirmed allograft rejection rates were similar in the recurrent IgAN group [3 (17%)] compared with the non-recurrent IgAN [6 (26%)] group (P = .47). Graft failure rate was not also significantly different in the recurrent IgAN group [4 (22.2%)] compared with the non-recurrent IgAN group [2 (8.7%)] (P = .224). CONCLUSIONS This novel lectin-independent Gd-IgA1 ELISA that can detect serum Gd-IgA1 in patients with recurrent IgAN can be used as a biomarker for diagnosis and activity assessment of post-transplant recurrent IgAN.
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Affiliation(s)
- S Temurhan
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - S U Akgul
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Y Caliskan
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
| | - A S Artan
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - C Kekik
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - H Yazici
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - E Demir
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - B Caliskan
- Haseki Training and Research Hospital, Pediatric Infectious Diseases Unit, Istanbul, Turkey
| | - A Turkmen
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - F S Oguz
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - M S Sever
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Akgul SU, Ciftci HS, Temurhan S, Caliskan Y, Bayraktar A, Tefik T, Kaya IA, Canitez IO, Demir E, Yazici H, Bakkaloglu H, Aydin AE, Turkmen A, Nane I, Aydin F, Oguz FS. Association Between HLA Antibodies and Different Sensitization Events in Renal Transplant Candidates. Transplant Proc 2017; 49:425-429. [PMID: 28340805 DOI: 10.1016/j.transproceed.2017.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Human leukocyte antigen (HLA) allo-immunization is caused by various events such as blood transfusions, pregnancies, or organ transplantations, which can lead to sensitization. In this retrospective study, we evaluated different sensitization models and their effects on panel-reactive antibody (PRA) profiles of renal transplantation candidates. METHODS Anti-HLA class I/II antibody screening tests were performed in 906 renal transplantation candidates with the use of a microbead-based assay (Luminex). RESULTS Two hundred ninety-seven (32.8%) of the patients were determined as positive in terms of PRA, and 609 (67.2%) were negative. Sensitized and non-sensitized patients were compared separately in terms of each sensitization type. The anti-HLA class I, II, and I+II positivity rates in patients sensitized only by blood transfusion were 13.1%, 6.3%, and 14.1%, the rates with pregnancy sensitization were 35.5%, 29%, and 45.2%, and rates with previous transplantation sensitization were 15.6%, 34.4%, and 38.9%, respectively. Prevalence of PRA positivity was significantly higher in patients with previous pregnancy than with transplantation and transfusion (odds ratio, 1.003; 95% confidence interval, 0.441-2.281; P = .031). The risk of developing HLA class I antibodies was higher in pregnancies (P < .001), and the risk of developing anti-HLA class II antibodies was higher in patients who had undergone a previous transplantation (P < .001). The rate of developing HLA-B antibodies in patients sensitized by pregnancy were significantly higher compared with sensitization after transfusion (P = .015), as was the rate of developing HLA-DQ antibodies in patients sensitized by previous transplantation compared with sensitization through pregnancy (P = .042). CONCLUSIONS In patients who are waiting for kidney transplantation, sensitization by pregnancy and transplantation have a significant impact on development of HLA class I and class II antibodies.
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Affiliation(s)
- S U Akgul
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey.
| | - H S Ciftci
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - S Temurhan
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Y Caliskan
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - A Bayraktar
- Department of General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - T Tefik
- Department of Urology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - I A Kaya
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - I O Canitez
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - E Demir
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - H Yazici
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - H Bakkaloglu
- Department of General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - A E Aydin
- Department of General Surgery, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - A Turkmen
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - I Nane
- Department of Urology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - F Aydin
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - F S Oguz
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
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Ciftci HS, Karadeniz MS, Tefik T, Caliskan Y, Yazıcı H, Demir E, Turkmen A, Nane I, Oguz FS, Aydin F. Influence of Proton Pump Inhibitors on Mycophenolic Acid Pharmacokinetics in Patients With Renal Transplantation and the Relationship With Cytochrome 2C19 Gene Polymorphism. Transplant Proc 2017; 49:490-496. [PMID: 28340819 DOI: 10.1016/j.transproceed.2017.01.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Most patients have serious digestive complications after renal transplantation. Therefore, it is important to protect gastrointestinal function to improve the survival rate of transplant patients. Proton pump inhibitors (PPIs) such as lansoprazole and rabeprazole are widely administered to renal transplant patients with mycophenolic acid (MPA) in the perioperative period. PPIs are metabolized by cytochrome (CYP) 2C19 enzymes. Mycophenolate sodium (MYF) and mycophenolate mofetil (MMF) have been used in immunosuppression. Clinically relevant drug-drug interactions have been described between immunosuppressive drugs. In the present study, we investigated the drug interaction between MPA and lansoparazole or rabeprazole and the impact of CYP2C19 polymorphisms on these drug interactions after renal transplantation. MATERIALS AND METHODS A total of 125 renal transplant patients taking MPA derivatives between 2012 and 2016 were included in this study. The 125 patients were divided into 6 groups: MMF/tacrolimus/steroid together with lansoprazole or rabeprazole; MYF/tacrolimus/steroid together with lansoprazole or rabeprazole and without PPI. The single nucleotide polymorphisms of CYP2C19 were determined by the polymerase chain reaction-restriction fragment length polymorphism. Plasma concentrations of MPA were measured by cloned enzyme donor immunoassay. Clinical parameters such as incidence of delayed graft function and acute rejection, the rate of change of serum creatinine, toxicity, and gastrointestinal adverse effects were analyzed retrospectively. RESULTS The mean concentrations of MPA in the MYF group were higher than those in the MMF group. The mean dose-adjusted blood concentration of MPA coadministered with lansoprazole was lower than that of MPA with rabeprazole or without PPI in MMF and MYF groups (P < .05). In patients with the CYP2C19*2/*2 genotype, the mean concentrations of MMF with lansoprazole were significantly lower than those with rabeprazole with MMF or without PPI (P < .05). Gastrointestinal side effects were significantly higher in MMF with lansoprazole group than in MYF with lansoprazole group (P < .05). However, no differences were found according to genotype distribution in all groups (P > .05). CONCLUSION Polymorphisms in CYP2C19 are related to the metabolic oxidation of drugs to varying degrees. Both genetic and clinical factors in pharmacokinetics may help to make further progress toward individualized therapy to yield maximum efficacy with minimal side effects.
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Affiliation(s)
- H S Ciftci
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey.
| | - M S Karadeniz
- Department of Anesthesiology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - T Tefik
- Department of Urology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Y Caliskan
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - H Yazıcı
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - E Demir
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - A Turkmen
- Department of Nephrology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - I Nane
- Department of Urology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - F S Oguz
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - F Aydin
- Department of Medical Biology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
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Demir E, Yeğit O, Erol A, Akgül SU, Çalışkan B, Bayraktar A, Çalışkan Y, Türkmen A, Savran FO, Sever MS. Relevance of Flow Cytometric Auto-Crossmatch to the Post-transplant Course of Kidney Transplant Recipients. Transplant Proc 2017; 49:477-480. [PMID: 28340816 DOI: 10.1016/j.transproceed.2017.01.023] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION The crossmatch test is essential prior to kidney transplantation (tx) to confirm compatibility between the donor and the recipient. However, its results can be misleading due to "undetectable antibodies" in the recipient's serum. To establish if undetectable autoantibodies are responsible for a positive result, an auto-crossmatch test can be performed. In this study, we aim to determine the long-term prognostic value of auto-flow cytometric auto-crossmatch (FCXM) test on kidney survival in kidney tx recipients. MATERIALS AND METHODS The primary outcome variable was reduced renal function. Secondary endpoints were incidence of biopsy-confirmed chronic antibody-mediated rejection (CAMR) and recurrent glomerulonephritis (GN). RESULTS There were no differences regarding initial serum creatinine levels between the study and control groups (P = .441). Patients who had positive auto-B FCXM had a significantly reduced renal function compared with the control group (P = .016). Four patients developed biopsy-confirmed CAMR in the study group and 1 patient in the control group (P = .047). Five patients had biopsy-confirmed recurrent GN in the GN study group, and only 1 patient had recurrent GN in the GN control group (P = .026). DISCUSSION Kidney transplant recipients with positive auto-FCXM test had significantly reduced renal function and a higher incidence of recurrent GN and CAMR compared with the control group. The findings of this study suggest a potential role of auto-antibody causing positive auto-FCXM test result, meanwhile increasing the risk of CAMR, recurrent GN, and new-onset diabetes after tx.
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Affiliation(s)
- E Demir
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
| | - O Yeğit
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A Erol
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - S U Akgül
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - B Çalışkan
- Haseki Training and Research Hospital, Pediatric Infectious Diseases Unit, Istanbul, Turkey
| | - A Bayraktar
- Department of General Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Y Çalışkan
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - A Türkmen
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - F O Savran
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - M S Sever
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Simsek E, Nalbantgil S, Demir E, Kemal H, Mutlu I, Ozturk P, Ertugay S, Engin C, Yagdi T, Ozbaran M. Survival Benefit of Implantable Cardioverter Defibrillator Therapy on Patients with Left Ventricular Assist Device. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.473] [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] Open
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Sahutoglu T, Akgul S, Caliskan Y, Yazici H, Demir E, Kara E, Temurhan S, Savran F, Turkmen A. Tac-MMF Versus CsA-MMF/CsA-AZA–Based Regimens in Development of De Novo Complement-Binding Anti-HLA Antibodies After Kidney Transplantation. Transplant Proc 2017; 49:454-459. [DOI: 10.1016/j.transproceed.2017.01.005] [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: 12/21/2022]
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Ertugay S, Ozturk P, Engin C, Demir E, Nalbantgil S, Yagdi T, Ozbaran M. Outcomes of Low Dose Strategy of Thrombolytic Therapy for Pump Thrombosis. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.675] [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: 11/16/2022] Open
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Şenel E, Demir E, Alkan RM. Bibliometric analysis on global Behçet disease publications during 1980-2014: is there a Silk Road in the literature? J Eur Acad Dermatol Venereol 2016; 31:518-522. [PMID: 27503253 DOI: 10.1111/jdv.13897] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 06/23/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND Behçet disease (BD) is a chronic and multisystemic vasculitis characterized with recurrent oral and genital ulcers, uveitis, arthritis and skin manifestations. The highest prevalence of the disease has been reported in regions historically involved in the Silk Road routes. OBJECTIVE We aimed to analyse Behçet literature and evaluate whether there is a concordance between ancient Silk Road regions and the distribution of publication productivity. METHODS The bibliometric analysis of the publications published during 1980-2014 using Thomson Reuters Web of Science database was performed. We generated infographics of productivity and also analysed the correlations among economical productivities, technological advancement levels and humanity index and productivity performances of 78 countries in Behçet literature. RESULTS Turkey ranked first in Behçet literature with 1837 articles followed by Japan and the USA. Turkey, Tunisia and Israel occupied the first three places in productivity. Significant correlations were noted between 2014 gross economic and technological indices and publication numbers of the countries. We found that European countries had high productivity, although they had low prevalence of BD. We detected no concordance between the productivity density of the countries and the ancient Silk Road routes. CONCLUSION Most publications were reported from developed countries although undeveloped or developing countries had higher prevalence of BD. Physicians in undeveloped and developing countries should be supported and encouraged to perform novel studies on BD.
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Affiliation(s)
- E Şenel
- Department of Dermatology, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - E Demir
- Department of Biostatistics, Faculty of Medicine, Hitit University, Çorum, Turkey
| | - R M Alkan
- North Campus, Hitit University, Çorum, Turkey.,Faculty of Civil Engineering, Istanbul Technical University, Istanbul, Turkey
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Schiefer J, Alischahi A, Perbix W, Grigutsch D, Graeff I, Zinser M, Demir E, Fuchs P, Schulz A. Time from accident to admission to a burn intensive care unit: how long does it actually take? A 25-year retrospective data analysis from a german burn center. Ann Burns Fire Disasters 2016; 29:18-23. [PMID: 27857646 PMCID: PMC5108222] [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] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 01/03/2016] [Indexed: 06/06/2023]
Abstract
Severe burn injuries often require specialized treatment at a burn center. It is known that prompt admission to an intensive care unit is essential for achieving good outcome. Nevertheless, very little is known about the duration of time before a patient is admitted to a specialized center after a burn injury in Germany, and whether the situation has improved over time. We retrospectively analyzed time from burn injury to admission to the burn intensive care unit in the Cologne-Merheim Medical Center - one of Germany's specialized burn centers - over the last 25 years. Moreover, we analyzed the data based on differences according to time of injury and day of the week, as well as severity of the burn injury. There was no weekend effect with regard to transfer time; instead transfer time was particularly short on a Monday or on Sundays. Furthermore, patients with severe burn injuries of 40-89% total body surface area (TBSA) showed the least differences in transfer time. Interestingly, the youngest and the oldest patients arrived at the burn intensive care unit (BICU) the fastest. This study should help elucidate published knowledge regarding transfer time from the scene of the accident to admission to a BICU in Germany.
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Affiliation(s)
- J.L. Schiefer
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - A. Alischahi
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - W. Perbix
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - D. Grigutsch
- Department of Anesthesiology, University Hospital Bonn, Germany
| | - I. Graeff
- Department of Anesthesiology, University Hospital Bonn, Germany
| | - M. Zinser
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - E. Demir
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - P.C. Fuchs
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
| | - A. Schulz
- Department of Plastic, Reconstructive, Hand and Burn Surgery, Hospital Cologne Merheim, University of Witten-Herdecke, Germany
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Dunda SE, Demir E, Mefful OJ, Grieb G, Bozkurt A, Pallua N. Management, clinical outcomes, and complications of acute cannula-related peripheral vein phlebitis of the upper extremity: A retrospective study. Phlebology 2014; 30:381-8. [PMID: 24844248 DOI: 10.1177/0268355514537254] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Acute phlebitis due to peripheral vein catheter use is frequently observed in clinical practice, and requires surgical therapy in severe cases. In this retrospective study, we aimed to increase awareness, evaluate current treatment options, and develop recommendations to optimize treatment outcomes. METHODS A total of 240 hospitalized patients with a diagnosis of upper extremity phlebitis from 2006 to 2011 were evaluated in terms of initial clinical features, parameters, co-morbidities and treatment regimes. Severity of phlebitis was graded according to the Baxter scale by assessing clinical symptoms such as pain, erythema, induration, swelling, or palpable venous cord (grade 0-5). Patients were divided in two subgroups: conservative (n = 132) and operative (n = 108) treatment. RESULTS Surgical intervention rates and severity were higher for cannula insertion in the cubital fossa region than for cannula insertion in the forearm and hand region (p < 0.05). Baxter scale grades were higher in the surgical treatment group than in the conservative treatment group (4.47 vs. 2.67, respectively). CONCLUSIONS The cubital fossa region is vulnerable to severe phlebitis and is not recommended as the first site of choice for cannulation. Phlebitis of Baxter scale grade 4 or 5 should be considered for early surgical intervention.
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Affiliation(s)
- S E Dunda
- Department of Plastic Surgery and Hand Surgery, Burn Center, RWTH University Hospital, Aachen, Germany
| | - E Demir
- Department of Plastic and Reconstructive Surgery, Burn Center, University of Witten/Herdecke, Cologne-Merheim Medical Center (CMMC), Cologne, Germany
| | - O J Mefful
- Department of Plastic Surgery and Hand Surgery, Burn Center, RWTH University Hospital, Aachen, Germany
| | - G Grieb
- Department of Plastic Surgery and Hand Surgery, Burn Center, RWTH University Hospital, Aachen, Germany
| | - A Bozkurt
- Department of Plastic Surgery and Hand Surgery, Burn Center, RWTH University Hospital, Aachen, Germany
| | - N Pallua
- Department of Plastic Surgery and Hand Surgery, Burn Center, RWTH University Hospital, Aachen, Germany
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Dunda SE, Kauczok J, Demir E, Braunschweig T, Pallua N. A rare case of massive carpal osteoblastoma requiring complex reconstructive surgery. J Plast Reconstr Aesthet Surg 2013; 66:e193-6. [PMID: 23490981 DOI: 10.1016/j.bjps.2013.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 01/17/2013] [Accepted: 02/21/2013] [Indexed: 11/18/2022]
Abstract
An osteoblastoma is a rare, commonly benign, osteoid-producing neoplasm of the bone with an incidence of 2% of all primary bone tumours. We present a case of a 54-year-old patient with persisting carpal pain and massive swelling of the hand for a period of 4 years. Incision biopsies revealed the histopathological finding of a carpal osteoblastoma. After complete tumour excision, including the carpal and, in parts, metacarpal bones, reconstructive surgery was performed with a free osteocutaneous iliac crest flap to obtain a natural hand contour and the best possible hand function. Follow-up revealed improvement of the hand function in terms of flexion, extension and strength without discomfort or further pain. Thus, ongoing carpal pain should lead to an intensive search with further diagnostic measures such as magnetic resonance imaging (MRI) scan as well as biopsies, if necessary, to obtain the correct diagnosis.
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Affiliation(s)
- S E Dunda
- Department of Plastic Surgery, Reconstructive and Hand Surgery, Burn Center, University Hospital Aachen, RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany.
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Üstün K, Taysı S, Sezer U, Demir E, Baysal E, Demir T, Sarıçiçek E, Alkış H, Şenyurt SZ, Tarakçıoğlu M, Aksoy N. Radio-protective effects ofNigella sativaoil on oxidative stress in tongue tissue of rats. Oral Dis 2013; 20:109-13. [DOI: 10.1111/odi.12082] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 01/08/2013] [Accepted: 01/30/2013] [Indexed: 02/05/2023]
Affiliation(s)
- K Üstün
- Department of Periodontology; Faculty of Dentistry; Gaziantep University; Gaziantep Turkey
| | - S Taysı
- Department of Biochemistry; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - U Sezer
- Department of Periodontology; Faculty of Dentistry; Gaziantep University; Gaziantep Turkey
| | - E Demir
- Department of Biochemistry; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - E Baysal
- Department of Otolaryngology; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - T Demir
- Department of Physiology; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - E Sarıçiçek
- Department of Biochemistry; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - H Alkış
- Department of Radiation Oncology; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - SZ Şenyurt
- Department of Periodontology; Faculty of Dentistry; Gaziantep University; Gaziantep Turkey
| | - M Tarakçıoğlu
- Department of Biochemistry; Faculty of Medicine; Gaziantep University; Gaziantep Turkey
| | - N Aksoy
- Department of Biochemistry; Faculty of Medicine; Harran University; Şanlıurfa Turkey
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