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  1. Article: Digital Skin Ulceration and Acro-Osteolysis: A Rare Presentation of Severe Carpal Tunnel Syndrome.

    Zorlu, Ozge / Karabağ, Sevil

    Indian dermatology online journal

    2022  Volume 13, Issue 6, Page(s) 798–799

    Language English
    Publishing date 2022-07-18
    Publishing country India
    Document type Journal Article
    ZDB-ID 2585814-2
    ISSN 2249-5673 ; 2229-5178
    ISSN (online) 2249-5673
    ISSN 2229-5178
    DOI 10.4103/idoj.idoj_92_22
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  2. Article ; Online: Histopathological and histomorphometric investigation of the effects of different irrigation solutions on Achilles tendon healing in rats.

    Dincel, Yaşar Mahsut / Can, Erdem / Karabag, Sevil

    Joint diseases and related surgery

    2023  Volume 35, Issue 1, Page(s) 186–193

    Abstract: Objectives: This study aimed to examine the effect of irrigation fluids containing povidone-iodine (PVP-I), rifampicin (RF), and chlorhexidine gluconate (CHG) used during surgery on healing on a rat Achilles tendon model.: Materials and methods: ... ...

    Abstract Objectives: This study aimed to examine the effect of irrigation fluids containing povidone-iodine (PVP-I), rifampicin (RF), and chlorhexidine gluconate (CHG) used during surgery on healing on a rat Achilles tendon model.
    Materials and methods: Twenty-eight male Sprague-Dawley rats (range, 300 to 400 g) were used in the experiment carried out between November 2022 and December 2022. The rats were divided into PVP-I, RF, CHG, and control groups, with seven rats in each group. Following the tenotomy and repair of the right Achilles tendon, the surgical site was irrigated using PVP-I, RF, CHG, or normal saline (the control group) for 2 min. All rats were sacrificed on the 21
    Results: The RF group gave better results in all three scoring systems compared to the control, PVP-I, and CHG groups (p=0.008, p=0.002, and p=0.006, respectively). Cellularity, rounding, and tenocyte morphology showed a significant difference in favor of the RF group (p=0.004). While the distribution of ground substance glycosaminoglycans showed a significant difference in favor of the RF group, there was no significant difference among the other groups (p=0.22).
    Conclusion: Irrigation solutions containing PVP-I, RF, or CHG show no negative effect on Achilles tendon healing. Moreover, the findings suggest that RF irrigation can accelerate the healing process.
    MeSH term(s) Rats ; Male ; Animals ; Povidone-Iodine/pharmacology ; Rats, Sprague-Dawley ; Achilles Tendon/surgery ; Achilles Tendon/pathology ; Chlorhexidine/pharmacology
    Chemical Substances Povidone-Iodine (85H0HZU99M) ; chlorhexidine gluconate (MOR84MUD8E) ; Chlorhexidine (R4KO0DY52L)
    Language English
    Publishing date 2023-11-30
    Publishing country Turkey
    Document type Journal Article
    ISSN 2687-4792
    ISSN (online) 2687-4792
    DOI 10.52312/jdrs.2023.1342
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  3. Article ; Online: The effects of etomidate on testicular ischemia reperfusion injury in ipsilateral and contralateral testes of rats.

    Jafarova Demirkapu, M / Karabag, S / Akgul, H M / Mordeniz, C / Yananli, H R

    European review for medical and pharmacological sciences

    2022  Volume 26, Issue 1, Page(s) 211–217

    Abstract: Objective: Testicular torsion is a condition that manifests with acute pain and can lead to infertility despite urgent surgical intervention. The aim of this study is to investigate the protective and preventive effects of etomidate, an imidazole ... ...

    Abstract Objective: Testicular torsion is a condition that manifests with acute pain and can lead to infertility despite urgent surgical intervention. The aim of this study is to investigate the protective and preventive effects of etomidate, an imidazole derivative, a non-barbiturate general anesthetic agent, without analgesic effect, on testicular ischemia-reperfusion injury.
    Materials and methods: Twenty-four adult male Wistar rats weighing 200-250 g were used in the study. Torsion was created in all rats by rotating left testes 720° clockwise on the day of the experiment. 30 minutes before detorsion, 4 mg/kg etomidate and 10 mg/kg propofol were administered intraperitoneally to the etomidate and propofol groups, respectively. After an hour of ischemia, the left testis was reinstated, and the tissues were repaired according to their physiology. Following 24 hours of reperfusion, the animals were euthanized after ipsilateral and contralateral testes were removed.
    Results: Etomidate applied before testicular detorsion significantly suppressed germ cell damage and Leydig cell loss in ipsilateral tissue. It did not cause any significant changes in the percentage of necrosis, histological score, and tubule rupture in ipsilateral tissue. Propofol administered before testicular detorsion significantly suppressed the percentage of necrosis only in the ipsilateral tissue. In addition, no signs of damage were observed in the contralateral testis.
    Conclusions: These findings show that etomidate administered before detortion creates a protective effect by preventing testicular ischemia-reperfusion injury.
    MeSH term(s) Animals ; Etomidate/pharmacology ; Male ; Malondialdehyde ; Rats ; Rats, Wistar ; Reperfusion Injury/drug therapy ; Reperfusion Injury/pathology ; Reperfusion Injury/prevention & control ; Testis
    Chemical Substances Malondialdehyde (4Y8F71G49Q) ; Etomidate (Z22628B598)
    Language English
    Publishing date 2022-01-20
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 605550-3
    ISSN 2284-0729 ; 1128-3602 ; 0392-291X
    ISSN (online) 2284-0729
    ISSN 1128-3602 ; 0392-291X
    DOI 10.26355/eurrev_202201_27770
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  4. Article ; Online: Effect of HER2 and Fascin expression on muscle-invasive bladder cancers: Classification by basaloid and luminal phenotypes.

    Arslan, Ayşegül I / Karabağ, Sevil / Akgül, Murat

    Indian journal of pathology & microbiology

    2022  Volume 65, Issue 3, Page(s) 604–609

    Abstract: Purpose: The present study aims to identify basaloid and luminal molecular groups and the p53-like sub-group, which is a sub-group of the luminal group, using a specific immunohistochemical panel and investigate human epithelial growth factor receptor 2 ...

    Abstract Purpose: The present study aims to identify basaloid and luminal molecular groups and the p53-like sub-group, which is a sub-group of the luminal group, using a specific immunohistochemical panel and investigate human epithelial growth factor receptor 2 (HER2)/Neu and Fascin expression in these groups to analyze their relationship with clinicopathological features and prognosis in a cohort of cases with muscle-invasive urothelial bladder carcinoma (MIBC).
    Material and methods: An immunohistochemical panel that included GATA-3, CK20, CD44, and CK5/6 was used to identify molecular sub-groups based on expression in 44 cases of MIBC. HER2/Neu and Fascin expression in basal, luminal, and p53-like groups and the relationship with clinicopathological features and prognosis were investigated.
    Results: The distribution of the molecular sub-groups determined by immunohistochemistry was as follows: 23 luminal cases (52.3%), 16 basal cases (36.4%), and 5 (11.4%) p53-like cases. There was a statistically significant difference in tumor size across the groups, with the greatest size in the p53-like group (p = 0.001). A statistically significant difference was observed in HER2/Neu expression between the molecular sub-groups (p = 0.017). Comparison of survival and HER2/Neu scores revealed shorter survival in patients with an HER2/Neu score of 3 + compared to those with scores of 0, 1+, and 2+ (p = 0.109). Fascin immunoreactivity was more common in the p53-like and basal groups compared to the luminal group (p = 0.036).
    Conclusion: Despite the limited number of cases in the MIBC group, our results support that HER2/Neu expression in the luminal sub-group and Fascin expression in basal and p53-like groups may be used as a negative prognostic marker. Multi-center studies that include large case series are warranted in this field.
    MeSH term(s) Biomarkers, Tumor/metabolism ; Breast Neoplasms ; Carrier Proteins ; Female ; Humans ; Microfilament Proteins ; Muscles/pathology ; Phenotype ; Prognosis ; Receptor, ErbB-2/genetics ; Receptor, ErbB-2/metabolism ; Tumor Suppressor Protein p53 ; Urinary Bladder Neoplasms/diagnosis ; Urinary Bladder Neoplasms/pathology
    Chemical Substances Biomarkers, Tumor ; Carrier Proteins ; Microfilament Proteins ; Tumor Suppressor Protein p53 ; fascin (146808-54-0) ; Receptor, ErbB-2 (EC 2.7.10.1)
    Language English
    Publishing date 2022-07-28
    Publishing country India
    Document type Journal Article
    ZDB-ID 197621-7
    ISSN 0974-5130 ; 0377-4929
    ISSN (online) 0974-5130
    ISSN 0377-4929
    DOI 10.4103/ijpm.ijpm_537_21
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  5. Article ; Online: Histiocytic Sarcoma with Invasive Urothelial Carcinoma of Urinary Bladder.

    Arslan, Aysegul Isal / Karabag, Sevil / Akgul, Murat

    Journal of the College of Physicians and Surgeons--Pakistan : JCPSP

    2022  Volume 32, Issue 4, Page(s) S79–S81

    Abstract: We report a rare case of histiocytic sarcoma in association with invasive urothelial carcinoma involving the urinary bladder. A 67-year male patient, who presented with a complaint of macroscopic hematuria, was found to have a mass on urinary system ... ...

    Abstract We report a rare case of histiocytic sarcoma in association with invasive urothelial carcinoma involving the urinary bladder. A 67-year male patient, who presented with a complaint of macroscopic hematuria, was found to have a mass on urinary system ultrasonography. Abdominal magnetic resonance imaging was performed to evaluate the mass, which showed a 52×24 mm mass on the posterior wall of the bladder. The cystoscopic examination revealed two suspicious areas in close proximity to one another with solid-papillary character. The tissue samples were collected by means of transurethral resection. The evaluation of these samples revealed two distinct neoplastic patterns. The areas of invasive urothelial carcinoma infiltrating lamina propria were noted on the surface in addition to diffuse sheets of large cells with hyperchromatic nuclei and ample clear cytoplasm, with a patternless pattern among small lymphocytes in myxoid background in the lamina propria. The positive reactions were observed in these areas with CD45, fascin, and CD68, a histiocytic marker. The histopathological diagnosis was histiocytic sarcoma in combination with invasive urothelial carcinoma. Histiocytic sarcoma may mimic several other malignant lesions, and only immunohistochemistry can identify this tumour to allow correct treatment. We present this rare case to emphasise that this phenomenon should be considered in unusual tumors and sites. Key Words: Urinary bladder, Histiocytic sarcoma, Invasive urothelial carcinoma.
    MeSH term(s) Carcinoma, Transitional Cell/diagnostic imaging ; Carcinoma, Transitional Cell/pathology ; Carcinoma, Transitional Cell/surgery ; Cystectomy ; Histiocytic Sarcoma/diagnosis ; Histiocytic Sarcoma/pathology ; Histiocytic Sarcoma/surgery ; Humans ; Male ; Urinary Bladder/diagnostic imaging ; Urinary Bladder/pathology ; Urinary Bladder/surgery ; Urinary Bladder Neoplasms/diagnostic imaging ; Urinary Bladder Neoplasms/surgery
    Language English
    Publishing date 2022-05-23
    Publishing country Pakistan
    Document type Case Reports
    ZDB-ID 2276646-7
    ISSN 1681-7168 ; 1022-386X
    ISSN (online) 1681-7168
    ISSN 1022-386X
    DOI 10.29271/jcpsp.2022.Supp1.S79
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  6. Article ; Online: Relapse of minimal change disease after inactivated SARS-CoV-2 vaccination: case report.

    Özkan, Gülsüm / Bayrakçı, N / Karabağ, S / Güzel, E Ç / Ulusoy, S

    International urology and nephrology

    2021  Volume 54, Issue 4, Page(s) 971–972

    MeSH term(s) COVID-19/prevention & control ; COVID-19 Vaccines/adverse effects ; Humans ; Nephrosis, Lipoid ; Recurrence ; SARS-CoV-2 ; Vaccination
    Chemical Substances COVID-19 Vaccines
    Language English
    Publishing date 2021-06-28
    Publishing country Netherlands
    Document type Case Reports ; Letter
    ZDB-ID 204048-7
    ISSN 1573-2584 ; 0301-1623 ; 0042-1162
    ISSN (online) 1573-2584
    ISSN 0301-1623 ; 0042-1162
    DOI 10.1007/s11255-021-02889-5
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  7. Article ; Online: Histopathological and immunohistochemical investigation of the local and systemic effects of tranexamic acid on the healing of the Achilles tendon in rats.

    Sarı, Abdulkadir / Dinçel, Yaşar Mahsut / Karabağ, Sevil / Çetin, Mehmet Ümit

    Joint diseases and related surgery

    2021  Volume 32, Issue 1, Page(s) 152–161

    Abstract: Objectives: This study aims to compare the effects of systemic and local applications of tranexamic acid (TXA) on tendon healing using a rat Achilles tendon injury model.: Patients and methods: Thirty-six adult male albino Wistar rats (aging 3-4 ... ...

    Abstract Objectives: This study aims to compare the effects of systemic and local applications of tranexamic acid (TXA) on tendon healing using a rat Achilles tendon injury model.
    Patients and methods: Thirty-six adult male albino Wistar rats (aging 3-4 months; weighing 350 to 400 g) were used in this study conducted between December 2019 and January 2020. The Achilles tendon was performed bilateral tenotomy and surgically repaired. Postoperatively, 1 mL of TXA was administered to each leg locally in the local group, whereas 2 mL of TXA was intraperitoneally administered in the systemic group. The control group was left untreated. Half of the rats were sacrificed on Day 15 and the other half on Day 30. Tendon healing was evaluated with the Bonar and the Movin scoring systems and immunohistochemical methods.
    Results: The systemic group had the highest Bonar and Movin scores on Day 15. All groups exhibited tendon healing on Day 30, with no significant differences among the groups. The tenocyte morphology was found to be more impaired in both TXA groups on Day 30 (p=0.013). Ground substance scores were lower in the systemic group on Day 30 (p=0.028). The fiber structure and arrangement scores were higher in the systemic group on Day 15 (p=0.007 and p=0.032). Immunohistochemical analyses showed that galectin-3 values exhibited a significant difference in all groups on Day 30 (p=0.020). In all groups, it was determined that type I collagen values showed an increasing trend on Day 30, compared to the values on Day 15, whereas type III collagen values showed a decreasing trend.
    Conclusion: Our results demonstrated that local and systemic use of TXA does not impair tendon healing. Although advanced studies are needed, our study suggests that TXA application reduces the development of fibrosis.
    MeSH term(s) Achilles Tendon/injuries ; Achilles Tendon/pathology ; Achilles Tendon/surgery ; Animals ; Antifibrinolytic Agents/pharmacology ; Collagen Type I/metabolism ; Collagen Type III/metabolism ; Disease Models, Animal ; Male ; Rats ; Rats, Wistar ; Tendon Injuries/surgery ; Tenocytes ; Tenotomy ; Tranexamic Acid/pharmacology ; Wound Healing/drug effects
    Chemical Substances Antifibrinolytic Agents ; Collagen Type I ; Collagen Type III ; Tranexamic Acid (6T84R30KC1)
    Language English
    Publishing date 2021-01-06
    Publishing country Turkey
    Document type Journal Article
    ISSN 2687-4792
    ISSN (online) 2687-4792
    DOI 10.5606/ehc.2021.76301
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  8. Article: The Effects of Fentanyl on Testicular Ischemia-Reperfusion Injury.

    Mordeniz, Cengiz / Demirkapu, Mahluga Jafarova / Akgul, Hacı Murat / Karabag, Sevil / Celikkol, Aliye / Yananlı, Hasan Raci

    Turkish journal of anaesthesiology and reanimation

    2022  Volume 49, Issue 5, Page(s) 373–378

    Abstract: Objective: Testicular torsion is a condition that often occurs as a result of the rotation of the spermatic cord in childhood and adolescence in men, manifests with acute pain and causes infertility in the future even if emergency intervention is ... ...

    Abstract Objective: Testicular torsion is a condition that often occurs as a result of the rotation of the spermatic cord in childhood and adolescence in men, manifests with acute pain and causes infertility in the future even if emergency intervention is performed. The aim of this study is to investigate the protective and preventive effects of fentanyl, a potent analgesic agent frequently used in anaesthesia practice, on testicular ischemia reperfusion injury, which manifests through acute pain.
    Methods: A total of 16 adult male Wistar rats, weighing 200-250 g, were used in this study. They were divided into two groups, consisting of eight animals in each group. Torsion was created in all rats by rotating left testicles 720 clockwise on the day of the experiment. 3 mM of fentanyl was applied intraperitoneally 30 minutes before detorsion to the fentanyl group. Following an hour of ischemia, the left testicle was reinstated, and tissues were repaired according to their physiology. Following 24 hours of reperfusion, the animals were euthanised after taking left testes and blood samples.
    Results: Fentanyl, administered prior to testicular detorsion, significantly suppressed germ cell damage in torsioned tissue, catalase activity and malondialdehyde levels in blood samples taken from the heart. No significant differences were observed in plasma total thiol concentration, histological score, Leydig cell counts, percentage of necrosis and tubule rupture.
    Conclusion: These findings show that fentanyl administered before detortion creates a protective effect by preventing testicular ischemia reperfusion injury leading to infertility in the future.
    Language English
    Publishing date 2022-01-31
    Publishing country Turkey
    Document type Journal Article
    ISSN 2667-677X
    ISSN 2667-677X
    DOI 10.5152/TJAR.2021.1392
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  9. Article ; Online: Histopathological and molecular findings in 98 cases of endometrial carcinoma: MMR, p53 and next generation sequencing.

    Karabağ, Sevil / Şentürk, Mehmetbaki / Söğüt, Fırat Can / Ergül, Özlem Sevinç / Ersoy, Tuğçe

    Pathology, research and practice

    2022  Volume 241, Page(s) 154275

    Abstract: Gynecological malignancies arise from hereditary and somatic mutations, transcriptional aberrations, and genomic alterations influenced by epigenetic factors. This study aims to identify the mutations and their frequency in endometrial carcinomas (EC), ... ...

    Abstract Gynecological malignancies arise from hereditary and somatic mutations, transcriptional aberrations, and genomic alterations influenced by epigenetic factors. This study aims to identify the mutations and their frequency in endometrial carcinomas (EC), and furthermore, to determine the relationship of these mutations with histopathological and immunohistochemical (IHC) parameters. The study was carried out in a retrospective cohort of 98 patients who received treatment upon being diagnosed with EC at a tertiary university hospital in Turkey between 2016 and 2021. The NGS-DNA tumor panel containing 29 genes was used in the study. NGS data of the cases were obtained from state of the evidence Tier 1 and 2 mutations. The relationship of patients' next generation sequencing (NGS) DNA panel results with histopathological parameters and IHC results (MLH1, MSH2, PMS2, MSH6 and p53) were evaluated. In 59 of the 98 cases, mutations were detected in at least one gene investigated with the NGS DNA panel. The most common somatic mutations in endometrial carcinoma were PIK3CA (33.6%), CTNNB1 (16.3%), KRAS (12.2%) and FGFR2 (11.2%) in this cohort. Abnormal p53 was detected by IHC in 15 out of 75 (20%) cases. Loss of expression was observed in at least one mismatch repair (MMR) protein by means of IHC in 39 out of 72 (39.8%) cases. Metastasis was found in 14 out of 82 (14.3%) patients who underwent lymph node dissection. FGFR2 mutation was more common in the group with lymph node metastasis compared to those without metastasis (p = 0.02). We report the mutational landscape of EC in a tertiary referral hospital in northwestern Turkey. Although our data are very limited, we think that the FGFR2 mutation may be associated with lymph node metastasis, but studies with larger patient numbers and longer follow-up periods are needed.
    MeSH term(s) Female ; Humans ; Tumor Suppressor Protein p53/genetics ; Tumor Suppressor Protein p53/metabolism ; Retrospective Studies ; Lymphatic Metastasis ; High-Throughput Nucleotide Sequencing ; Endometrial Neoplasms/pathology ; DNA Mismatch Repair ; MutL Protein Homolog 1/metabolism ; Microsatellite Instability
    Chemical Substances Tumor Suppressor Protein p53 ; MutL Protein Homolog 1 (EC 3.6.1.3)
    Language English
    Publishing date 2022-12-15
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 391889-0
    ISSN 1618-0631 ; 0344-0338
    ISSN (online) 1618-0631
    ISSN 0344-0338
    DOI 10.1016/j.prp.2022.154275
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  10. Article ; Online: The Results of Pneumatic Balloon Dilatation Treatment in Children with Achalasia: A Single-Center Experience.

    Güler, Selen / Aksoy, Betül / Öztan, M Onur / Appak, Yeliz Ç / Kahveci Çelik, Sinem / Onbaşı Karabağ, Şenay / Köylüoğlu, Gökhan / Baran, Maşallah

    The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology

    2023  Volume 34, Issue 9, Page(s) 968–974

    Abstract: Background/aims: Achalasia is a primary motility disorder characterized by a relaxation disorder of the lower esophageal sphincter. In pneumatic balloon dilatation, which is one of the treatment methods, the muscle fibers are torn with an endoscopically ...

    Abstract Background/aims: Achalasia is a primary motility disorder characterized by a relaxation disorder of the lower esophageal sphincter. In pneumatic balloon dilatation, which is one of the treatment methods, the muscle fibers are torn with an endoscopically inflated balloon in the lower esophageal sphincter. This study aimed to evaluate the results of long-term pneumatic balloon dilatation treatment in our clinic for children diagnosed with achalasia.
    Materials and methods: Pediatric patients who underwent pneumatic balloon dilatation with a diagnosis of achalasia in our pediatric gastroenterology clinic between 2016 and 2021 were included in the study. Demographic data of the patients, clinical findings at diagnosis, and follow-up results were evaluated retrospectively.
    Results: Ten patients who underwent 18 pneumatic balloon dilatation operations were included in the study. The mean follow-up period of the patients was 23.7 ± 14.1 months. It was observed that the procedure was performed once in 3 (30%) patients, twice in 2 (20%) patients, and 3 times in 3 (30%) patients. It is noteworthy that the diameter of the balloon used in the first procedure in patients who needed repeated operations was less than 30 mm. No complications were observed except for chest pain, which was detected in 1 patient.
    Conclusion: When the patients who needed recurrent dilatation were evaluated, it was noted that the diameter of the balloon in which the first procedure was performed in these patients was smaller. This study is an important contribution to the literature due to the scarcity of the pediatric achalasia data, in which long-term results related to pneumatic balloon dilatation are reported in Turkey.
    MeSH term(s) Humans ; Child ; Esophageal Achalasia/surgery ; Treatment Outcome ; Dilatation/methods ; Retrospective Studies ; Manometry ; Dilatation, Pathologic
    Language English
    Publishing date 2023-07-24
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 1340275-4
    ISSN 2148-5607 ; 1300-4948
    ISSN (online) 2148-5607
    ISSN 1300-4948
    DOI 10.5152/tjg.2023.22328
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