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Öğe Capparis Spinosa L. in an Animal Model of Sciatic Crush Injury(Wiley, 2019) Ishakoglu, Ozlem Kutlu; Tutuk, Okan; Dogan, Hatice; Demir, Enver Ahmet; Secinti, Ilke Evrim; Kara, Mikail; Kahraman, Ibrahim[Abstract Not Available]Öğe A case of leishmania infantum mimicking lymphoma(Wolters Kluwer Medknow Publications, 2023) Culha, Gulnaz; Dogramaci, A. Cigdem; Kaya, Tugba; Secinti, Ilke EvrimLeishmaniasis is a parasitic infection caused by an obligate intracellular protozoon transmitted by infected sand flies. Cutaneous leishmaniasis (CL) is a skin disease known in our country as oriental sore, which heals, leaving a scar in place, mainly on the skin and sometimes in the mucous membrane. Demonstration of the parasite in chronic CL is difficult. Moreover, differential diagnosis from other granulomatous dermatitides such as lupus vulgaris, sarcoidosis and deep mycosis is growing difficult. A case of CL was presented in an 84-year-old female patient who had a pre-diagnosis of lymphoma and a nodule lesion on her forehead for 2.5 months. In the smear of the sample taken from the lesion, amastigote forms of the parasite were diagnosed and typed as L.infantum by the Real-Time Polymerase Chain Reaction (RT-PCR) method.Öğe The Effect of Slime Factor in the Treatment of Spinal Implant Infections(Turkish Neurosurgical Soc, 2024) Turkoglu, Hasan; Kesilmez, Emrullah Cem; Secinti, Kutsal Devrim; Secinti, Ilke Evrim; Kucuk, Burak; Aral, Murat; Eken, RecepAIM: To investigate the effect of the biofilm-forming ability of the bacteria on treatment in rats by using biofilm-forming and nonbiofilm-forming strains of Staphylococcus aureus (S. aureus). MATERIAL and METHODS: Forty rats were divided into four equal groups as Group 1A, 1B, 2A, and 2B. All rats underwent single distance lumbar laminectomy, and titanium implants were introduced. Group 1 rats were inoculated with Slime factor (-) S. aureus, while Group 2 rats were inoculated with biofilm Slime factor (+) S. aureus. None of the rats were given antibiotics. One week later, the surgical field was reopened and microbiological samples were taken. The implants of rats in Groups 1A and 2A were left in place, while the implants of rats in Groups 1B and 2B were removed. RESULTS: There was no statistically significant difference between the groups inoculated with slime factor (+) S. aureus; although, Groups 1A and 2A showed statistically significant difference. Statistical analysis with respect to bacterial count also showed a statistically significant difference between Groups 1A and 2A. There was a statistically significant difference between Group 1B and CONCLUSION: The results obtained in the present study reveal that in case of implant-dependent infection, the first sample taken can be checked for slime factor, and if there is infection with slime factor-negative bacterium, treatment without removing the implant may be recommended. S. aureus was used in the study because it is the most common cause of implant-related infection at surgical sites. Further studies using different bacterial species are needed to reach a definitive conclusion.Öğe Effect of Thiocolchicoside on Midline Closure in Early Chicken Embryos(Galenos Publ House, 2024) Eken, Recep; Kesilmez, Emrullah Cem; Secinti, Kutsal Devrim; Akkaya, Zeynep Kahyaoglu; Secinti, Ilke Evrim; Turkoglu, Hasan; Yuksel, ZaferBACKGROUND/AIMS: Thiocolchicoside (TCC) is a semi-synthetic derivative of colchicine analog, a muscle relaxant with analgesic and antiinflammatory activity. Studies have shown that colchicine inhibits microtubule polymerization and stops mitotic activity, and that TCC is a competitive antagonist of g-aminobutyric acid A and glycine receptors. It is known that the use of TCC during pregnancy may have teratogenic effects. We aimed to examine the effects of drugs with TCC as their active ingredient, which are frequently used in clinical practice, on the development of chicken embryos and midline closure. MATERIALS AND METHODS: A total of 80 eggs were incubated in an incubator for 24 hours. At the 24th hour of incubation, the eggs were divided into 4 groups. Increasing doses of TCC (8 mcg, 16 mcg, 32 mcg) in 0.1 cc solutions were applied to these groups and half of the control group was administered physiological saline, corresponding to the air sac. All eggs were then closed with sterile tapes and replaced in the incubator. On the 10th day of incubation, the eggs were hatched and the embryos were evaluated morphologically and histopathologically. RESULTS: TCC caused a high rate of early embryo death (EED) in all groups in which it was applied. Although midline closure defects were detected in some of the developing embryos, it was not statistically significant. CONCLUSION: EED and midline closure defects were observed in some developing embryos in the TCC applied groups. It will be possible to understand the mechanism of embryonic damage, to reveal teratogenic effects and to minimize the formation of congenital defects with more comprehensive studies.Öğe Epithelioid Hemangioendothelioma in the Tongue: A Rare Case Report(Federation Turkish Pathology Soc, 2023) Cirkin, Deniz S. U. R. M. E. L., I; Secinti, Ilke Evrim; Dogan, Esin; Ozler, Gul S. O. Y. L. U.Epithelioid hemangioendothelioma is a rare malignant vascular neoplasm caused by the proliferation of neoplastic endothelial cells. Epithelioid hemangioendothelioma may develop in any organ, but it is commonly observed in the extremities. The tongue is a very unusual location for epithelioid hemangioendothelioma.A 55-year-old male patient presented to the outpatient head and neck clinic with lumps in the tongue, pain, and limitation of motion. The polypoid mass detected in the anterior midline of the tongue was excised. Microscopically, the tumor cells included slightly pleomorphic oval or round vesicular nuclei with an eosinophilic cytoplasm that variably contained vacuoles. There were 4 mitoses per 10 high power fields and there was no necrosis. In immunohistochemical study, the tumor cells were positively stained with CD31 and CD34 whereas they were negatively stained with TFE3, SMA, S-100, HHV-8 and EMA. The patient was diagnosed with epitheloid hemangioendothelioma.Only ten cases have been reported in the tongue in the literature. Our case was the eleventh case, and we aimed to report this case as a rare entity with an unusual location.Öğe The histopathological effect of tissue adhesive on urethra wound healing process: An experimental animal study(Elsevier Sci Ltd, 2020) Atici, Ahmet; Secinti, Ilke Evrim; Celikkaya, Mehmet Emin; Akcora, BulentIntroduction and Objective: The present study aimed to determine the histopathological effect of Tisseel tissue adhesive on the urethral wound healing process after urethroplasty in a rat model. Study design A total of 24 animals were randomly allocated into three groups: Group 1; control group (n = 6); Group 2; suture-closure group (n = 9); and Group 3; suture + adhesive group (n = 9). In group 2, an incision 4 mm long was made on the ventral skin of the penis along the midline from the glans penis, to open the dartos muscle, corpus spongiosum, and urethra. Next, initially, the urethra alone, and then the layers up to the skin were covered in layers with 8/0 vicryl interrupted sutures. Group 3 underwent the same procedures as group 2, but after the urethra was repaired 0.1 cc of Tisseel tissue adhesive was applied over the urethra. Penile tissue samples were obtained 21 days later, and tissue samples were sent for histopathological analysis. Results Urethral epithelial thickness and connective tissue thickness in group 3 were higher than in group 1 and group 2. Fibrosis in group 3 was higher than in group 2. The difference in inflammation between group 3 and group 2 was not significant. There was no significant difference in microvessel density between group 2 and group 3. Discussion Both increased fibrosis and connective tissue thickness were noted in group 3 compared to group 2 and group 1. These increases may have been caused by the hemostatic effect of the Tisseel adhesive and its triggering of fibroblast growth factors. The epithelial thickness increased significantly in group 3 and group 2 compared to group 1. This increase in tissue thickness without an increased number of epithelial cells can be explained by the development of oedema. Conclusion The present study suggests that while Tisseel tissue adhesive increases connective tissue thickness and fibrosis, it does not demonstrate a prolonged inflammation or increased neovascularization in the urethral wound at 3 weeks after surgery. The data obtained in our study does not support the use of Tisseel in urethroplasty surgery. The results obtained in this study demonstrate a significantly higher formation of fibrosis (scar tissue), which underlines the importance of new studies to identify new treatments for urethral wound healing after urethra trauma or surgery. [GRAPHICS] .Öğe PD-L1 Expression in Colorectal Adenocarcinoma Is Associated With the Tumor Immune Microenvironment and Epithelial-Mesenchymal Transition(Oxford Univ Press Inc, 2022) Secinti, Ilke Evrim; Ozgur, Tumay; Dede, IsaObjectives Colorectal carcinomas are the third-most common tumors in the world, and colorectal cancer ranks second in cancer-related deaths. Our aim in this study was to investigate the correlation between programmed cell death ligand 1 (PD-L1) expression and clinicopathologic parameters in colorectal carcinomas and their relationship to the tumor immune microenvironment, epithelial-mesenchymal transition (EMT), and microsatellite instability. We also investigated the predictive and prognostic role of PD-L1. Methods One hundred patients with a diagnosis of colorectal adenocarcinoma who did not receive neoadjuvant therapy were included in the study. The relationships among the altered expression of PD-L1; vimentin; E-cadherin; mismatch repair status; and pathologic microenvironmental features, including the presence of tumor budding and CD8-positive tumor infiltrating lymphocytes (TILs), were assessed. Results Increased PD-L1 expression in tumor cells was associated with increased TILs (P = .013), high histologic grade (P = .011), advanced pathologic T stage (P = .007), lymph node metastasis (P = .002), distant metastasis (P < .001), perineural invasion (P = .009), high bud score (P = .023), EMT (P < .001), and shorter disease-free survival (P = .029). Conclusions Overall, PD-L1 expression in colorectal carcinoma tumor cells is a marker of poor prognosis, and the positive correlation detected between EMT status and PD-L1 expression suggests that patients with the mesenchymal phenotype may be more likely to benefit from programmed cell death 1 protein/PD-L1 immunotherapy.Öğe Pregabalin does not Cause Midline Closure Defect but is not as Innocent as It is Thought(Turkish Neurosurgical Soc, 2021) Secinti, Kutsal Devrim; Eken, Recep; Secinti, Ilke Evrim; Yuksel, Kasim ZaferAIM: To investigate the effects of pregabalin on neural tube closure, and other potential effects on other organ systems in a chick embryo model. MATERIAL and METHODS: Fertilized chicken eggs were divided into groups, and different doses of pregabalin was administered. All embryos were harvested in the 8th day of incubation, and investigated both macroscopically and microscopically against any developmental malformations caused by Pregabalin. RESULTS: Macroscopically not any malformations were detected but macrosomia was statistically significant in medium and high dose groups. Microscopically, vertebral lamina ossification was delayed in some embryos in high dose group but not interpreted as midline closure defect and also not statistically significant. Decrease in the number of renal glomerulus and increase in the tubular damage was statistically significant in medium and high dose groups. Cardiomegaly was also found in some embryos in middle and high dose groups but not statistically significant. CONCLUSION: The use of pregabalin does not cause neural tube closure defect in the embryo unless not exceed recommended maximum dose. Causing macrosomia instead of developmental retardation by Pregabalin is in conflict with the literature. This study revealed that Pregabalin causes fetal nephrotoxicity and macrosomia. These findings indicate that the use of Pregabalin in pregnancy still needs to be accounted as suspicious.Öğe The Preventive Effect of Systemic Honokiol and Systemic Pentoxifylline on Epidural Fibrosis(Turkish Neurosurgical Soc, 2021) Secinti, Kutsal Devrim; Secinti, Ilke Evrim; Kurutas, Ergul BelgeAIM: To investigate the preventive effects of systemic honokiol and pentoxifylline treatments on epidural fibrosis (EF) in the experimental laminectomy model. MATERIAL and METHODS: Thirty-two rats were divided into four equal groups. Laminectomy was performed in all rats except for the control group. One group was kept as the negative control group. Moreover, 10 mg/kg pentoxifylline and 10 mg/kg honokiol were administered intraperitoneally for 5 days, respectively, to the other two groups. The rats were sacrificed after 4 weeks. The samples were examined biochemically in terms of oxidative stress and inflammation induced by tissue damage. Histopathological and immunohistochemical investigations were also performed to detect EF severity. RESULTS: In honokiol and pentoxifylline groups compared with the negative control group, tumor necrosis factor-beta and interleukin-10 levels (indicating inflammation); myeloperoxidase, malondialdehyde, and hydroxyproline levels (indicating oxidative stress); and intercellular adhesion molecule levels (indicating fibrosis) were decreased. Histopathologically and immunohistochemically, EF was significantly reduced in the pentoxifylline and honokiol groups. Biochemical findings were consistent with the histopathological and immunohistochemical findings. CONCLUSION: Both pentoxifylline and honokiol prevent EF formation. However, this effect is more pronounced in honokiol.Öğe Prognostic value of Prognostic Nutritional Index (PNI) for 5-year recurrence-free survival in surgically resected gastrointestinal stromal tumors(Edizioni Luigi Pozzi, 2023) Duymus, Mehmet Esat; Ugur, Mustafa; Dal, Mehmet Burak; Aslan, Ersin Rasim; Donmez, Yasemin; Ozgur, Tumay; Secinti, Ilke EvrimBACKGROUND: Recent studies have investigated the role of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), systemic inflammation index (SII), and prognostic nutritional index (PNI) on prognosis for various malig-nancies. However, the value of these markers in determining the prognosis for gastrointestinal stromal tumors (GIST) remains controversial. We investigated the effect of NLR, PLR, SII, and PNI on 5-year recurrence-free survival (RFS) in patients with surgically resected GIST. MATERIALS AND METHODS: We retrospectively analyzed patients (n=47) who had undergone surgical resection for pri-mary, localized GIST at a single institution between 2010 and 2021. The patients were divided into two groups accord-ing to the recurrence status in the 5-year period as 5-year RFS(+) (patients with no recurrence (n=25) and 5-year RFS(-) (patients with recurrence (n=22) groups. RESULTS: In univariate analyses, Eastern Cooperative Oncology Group Performance Status (ECOG-PS), tumor localiza-tion, tumor size, PNI, and risk category were significantly different between the RFS(+) and RFS(-) groups while NLR, PLR, SII were not. Multivariate analyses revealed that only the tumor size (HR =5.485, 95% CI: 0.210-143.266, p=0.016), and PNI (HR= 112.020, 95% CI: 8.755-1433.278, p<0.001) were independent prognostic factors for RFS. The patients with a high PNI (>= 46.25) had a higher 5-year RFS rate than the patients with low PNI (<46.25) (95.2% to 19.2%, p<0.001). CONCLUSION: A higher preoperative PNI is an independent positive predictor for 5-year RFS for patients with surgi-cally resected GIST. However, NLR, PLR, and SII have no significant effect.Öğe Protective effect of dexpanthenol on cisplatin induced nephrotoxicity in rats(Taylor & Francis Ltd, 2022) Pinar, Neslihan; Topaloglu, Meyli; Secinti, Ilke Evrim; Buyuk, Esra; Kaplan, MahirCisplatin (CIS) is an antineoplastic agent used for treating solid organ tumors. Toxic side effects of CIS treatment include nephrotoxicity, neurotoxicity, ototoxicity, myelosuppression and hepatotoxicity. Dexpanthenol (DEX) exhibits antioxidant and anti-inflammatory effects and protective effects against free oxygen radicals. We investigated the protective effects of DEX on CIS induced nephrotoxicity. Animals were divided into four groups of 10. The control group was given saline. The DEX group was treated with DEX for 10 days. The CIS group was treated with a single dose of CIS. The DEX + CIS group was given a single dose of CIS followed by DEX for 10 days. We found increased levels of malondialdehyde (MDA), blood urea nitrogen (BUN) and creatinine, while superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and myeloperoxidase (MPO) levels were decreased in the CIS group. MDA, BUN and creatinine levels were decreased, while SOD, CAT, GPx and MPO levels were increased in the DEX + CIS group. Renal tubule damage, inflammation and histopathology scores were significantly higher in the CIS group than the control. The DEX + CIS group exhibited less renal tubule damage and inflammation, and lower histopathological assessment scores than the CIS group. Significant cortical tubule damage and interstitial inflammation were observed in the CIS group. Tubule damage was slightly less, and mild tubule dilation and less cast formation were observed in the DEX + CIS group; also, inflammation was less severe than for the CIS group. DEX may have therapeutic potential for treating CIS induced nephrotoxicity due to its antioxidant and anti-inflammatory properties.Öğe Renal Angiomyolipoma: A Clinicopathological Study of Seven Cases and Review of the Literature(Galenos Yayincilik, 2020) Gursoy, Didar; Secinti, Ilke Evrim; Hakverdi, Sibel; Gorur, SadikObjective: Renal angiomyolipomas (AMLs) are mesenchymal kidney tumours that have triphasic histology. This study aimed to present the clinical, pathological and immunohistochemical features of seven AML cases along with a review of the relevant literature. Materials and Methods: Seven cases of pathologically diagnosed AML were included in the study. The presence of fat tissues, smooth muscle cells, blood vessels and epithelioid components were determined for all cases. Tumour necrosis, haemorrhage, mitosis, lymphovascular and perineural invasion were also recorded. Immune markers [human melanoma black-45 (HMB45), Melan-A, smooth muscle actin (SMA), cytokeratin], previously applied to the tissue sections, were reevaluated as positive and negative staining. Results: All cases were classic AML types. Five patients had flank pain and two had haematuria. The tumour was located in the left kidney in two cases and in the right kidney in five cases. The mean size of the AMLs was 7.36 +/- 4.23 cm. Tumours were separated from the normal kidney parenchyma with good margins and composed of mature fatty tissues, blood vessels and fusiform spindle smooth muscle cells in varying proportions. Immunohistochemically, all cases were positive with HMB-45, Melan-A and SMA. No case was positive for cytokeratin staining. Conclusion: Correct histological diagnosis of renal AML subtypes is crucial. Incorrect diagnosis of classic renal AML may lead to inadequate postoperative management. Clinicians should be aware of the malignant potential of epithelioid AML and the need for long-term follow-up.Öğe Retinal teratogenicity of pregabalin in chick embryo model(Taylor & Francis Ltd, 2020) Secinti, Ilke EvrimBackground Pregabalin is a gamma-aminobutyric acid analog that binds to the alpha 2-delta subunits of the pre-synaptic voltage-dependent calcium channels of nerves with a high affinity and selectivity. In this study, the retinal teratogenic potential of pregabalin was investigated in a chick embryo model. Materials and methods Fertilised chicken eggs were divided into groups for administration with different doses of pregabalin. All eggs were opened on the 10th day of incubation. The embryos were dissected and the effects of pregabalin on the retina were investigated histopathologically, morphometrically, and immunohistochemically (Caspase-3). Results There was no statistically significant difference between the low dose pregabalin, control, or vehicle control groups in terms of the number of retina layers and retinal thickness. Medium and high dose pregabalin caused a statistically significant decrease in the number of retina layers, as well as sensory retinal and pigment epithelium layer thicknesses. The outer nuclear and outer plexiform layer did not form in the group administered a medium dose. Similarly, the outer nuclear, outer plexiform, inner nuclear, and inner plexiform layer did not form in the high-dose group. No statistically significant difference was observed between the groups in terms of cellular damage and Caspase-3 expression. Conclusion The use of pregabalin during pregnancy compromises retinal development in a dose-dependent manner. The use of pregabalin in pregnancy causes the aforementioned defects in this system and it may have developmental effects that needs to be further evaluated.Öğe Ribosome-binding protein-1 (RRBP1) expression in prostate carcinomas and its relationship with clinicopathological prognostic factors(Sage Publications Ltd, 2024) Kuzuluk, Didar Gursoy; Secinti, Ilke Evrim; Erturk, Tugce; Hakverdi, Sibel; Gorur, Sadik; Ozatlan, DilanIntroduct & imath;on: Studies in recent years have shown that ribosome-binding protein-1 (RRBP1) is expressed at high rates in many cancers and that it may be a potential prognostic biomarker. The objective of the present study is to determine the RRBP1 expression level in prostatic carcinoma and neighboring non-neoplastic prostate tissue, the relationship between its expression level with prognostic factors, and the role of RRBP1 in the development of prostate cancer. Materials and methods: The study included 45 patients who were diagnosed with prostatic carcinoma and underwent radical prostatectomy in our center between the years 2010 and 2021. Pathology reports were reviewed. Mann-Whitney U test was used for the comparison of RRBP1 and GADPH values of the cases (control and tumoral tissue) between the primary tumor stage (pT) and Gleason score (GS) groups. Hierarchical regression analysis was used to explain the effective variables in explaining the RRBP1 value of the research cases Results: According to the Mann-Whitney U test, mean and median RRBP1-T values of the cases with GS >= 8 were detected to be statistically significantly higher than the mean and median RRBP1-T values of the cases with GS < 8. Conclusion: We found out that RRBP1 was expressed at higher rates in patients with high GS and advanced-stage patients. This result indicated that RRBP1 expression may be important in predicting the prognosis of prostate carcinoma.Öğe Should a fourth category be added to the international tumor budding consensus conference tumor budding scoring system in colorectal adenocarcinomas?(Wiley, 2022) Secinti, Ilke Evrim; Ozgur, Tumay; Gursoy, Didar; Dede, IsaThe aim of this study was to investigate the relationship between tumor budding (TB) and clinicopathologic prognostic criteria in colorectal adenocarcinomas and to discuss the inclusion of the fourth group in the scoring system. A total of 131 cases were included in the study. TB was scored according to the classical 3-tiered scoring system and our proposed 4-tiered scoring system: BD0 (no buds), BD1* (1-4 buds), BD2 (5-9 buds), and BD3 (>= 10 buds). Cytokeratin staining was applied to 80 randomly selected cases and TB scoring was re-evaluated. TB was not observed in 31 (23.7%) of 131 cases and was categorized as BD0. Patients with BD0 budding had lower pT category, AJCC stage, tumor grade, less lymph node metastasis, lymphovascular invasion, tumor deposits (p < 0.05), and longer overall survival than BD1* patients (log-Rank p: 0.018). There was significant compatibility between the evaluation of TB with H&E and cytokeratin (kappa: 0.727, p < 0.001). In conclusion, we think it is valuable to add the BD0 category to the International Tumor Budding Consensus Conference (ITBCC) scores. However, more research with larger cohorts is needed for clinical applicability. H&E staining is sufficient for the assessment of budding, except in conditions such as increased inflammation where the tumor-stroma interface may be obscured.Öğe Should we report Breslow density, a new concept in cutaneous melanoma?(Malaysian Journal Pathology, 2021) Secinti, Ilke Evrim; Gursoy, Didar; Erturk, Tugce; Dede, Isa; Ozgur, Tumay; Dogan, EsinIntroduction: Breslow density is a newly defined biomarker, independent of Breslow thickness. We aimed to investigate the relationship of Breslow density with other clinicopathological prognostic factors and its effect on the overall survival and disease-free survival in patients with cutaneous melanomas. Materials & Methods: This was a single-centre retrospective study of patients (n = 19) diagnosed with cutaneous malignant melanomas in our hospital between 2011 and 2019 were included in the study. The exclusion criteria were in situ melanomas, punch or incisional biopsies and metastasis at the time of the diagnosis. Breslow density was determined by reevaluating slides obtained at the time of the initial diagnoses. The effect of Breslow density on survival was determined using univariate and multivariate Cox proportional risk analyses. Results: In terms of the overall survival, mortality risk increased as Breslow density increased (p = 0.044). Breslow density was not significantly associated with the overall survival in the multivariate model (p = 0.078). In terms of disease-free survival, the risk of metastasis or recurrence increased 1.229-fold in accordance with an increase in Breslow thickness (CI: 1.057-1.428), whereas increased Breslow density increased the metastasis or recurrence risk 1.059-fold (CI: 1.008-1.112). In the multivariate model, only Breslow density was statistically significant (p = 0.046). Conclusions: As a semi-quantitative and subjective measurement, Breslow density is not a completely accurate representation of the invasive tumour load. However, the measurement is practical and low cost and requires no additional equipment. Therefore, Breslow density can be measured in every laboratory. Considering the value of Breslow density in predicting the prognosis in patients with cutaneous melanomas and strong inter-observer compliance observed in the present study, we believe that it would be useful to include this measurement in pathology reports.
