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Öğe Comparison of clinical outcomes and FOXP3, IL-17A responses in Helicobacter pylori infection in children versus adults(Wiley, 2021) Yorguc, Eda; Gulerman, Hacer Fulya; Kalkan, Ismail Hakki; Guven, Burcu; Balci, Mahi; Yorguc, Mustafa caglarBackground The purpose of this study was to compare the clinical symptoms and pathological consequences of Helicobacter pylori (H. pylori) infection between children and adults and determine the levels of expression of FOX3P and IL-17A to examine the Th17/Treg balance. Methods Forty pediatric and 40 adult patients who were followed up at the Pediatric Gastroenterology and Internal Medicine Gastroenterology Departments were enrolled in the study. In our case-control study, gastric tissue specimens were evaluated using the updated Sydney system, and the number of cells expressing FOXP3/IL-17A (T-reg and Th17 cell markers) was analyzed immunohistochemically. In addition, each case was evaluated using a clinical follow-up questionnaire. Results Clinical signs and symptoms of children and adults were similar. IL-17A and FOXP3 levels were significantly higher in children and adults with H. pylori (+) than in those without H. pylori (-) (p < .001). In patients with H. pylori (+), the mean FOXP3 level was significantly higher, whereas the mean IL-17A level was significantly lower in children than in adults (p < 0001 for both groups). In children with H. pylori (+), bacterial density was negatively correlated with IL-17A level and positively correlated with FOXP3 level. In adults with H. pylori (+), there was a statistically significant, highly positive correlation between bacterial density and levels of IL-17A and FOXP3. Conclusions T-reg cells are suggested to more predominant in children than in adults, IL-17A levels decrease as H. pylori bacterial density increases. In conclusion, immune responses incline toward T-reg, which increases the susceptibility to persistent infections.Öğe The concomitant use of USP28 and p53 to predict the progression of urothelial carcinoma of the bladder(ELSEVIER GMBH, 2020) Devrim, Tuba; Atac, Fatih; Devrim, Alparslan Kadir; Balci, MahiThe Ubiquitin Specific Peptidase 28 (USP28) is a deubiquitinase involved in the DNA damage pathway. Recently, USP28 protein is reported to play roles in the mechanism of p53 action and could be a possible prognostic marker for bladder cancer (BCa). This study aims to explore the relation of USP28 with tumor growth and invasion, and also to investigate the interplay between USP28 and p53 in BCa. Expression levels of USP28 and p53 in human BCa (invasive and non-invasive, n = 43) and control tissues (n = 8) were evaluated by immunohistochemistry and quantitative real-time polymerase chain reaction (qPCR) profiling. The relationship between protein and gene expression levels, clinicopathologic features and prognosis were evaluated. Significant positive correlations were found between BCa tumor progression and the USP28 expression, and also between the USP28 and p53 scores (p all < 0.05). Immunohistochemistry staining percentages were strongly correlated between USP28 and p53, and also positive correlations between tumor progression and p53 expressions were determined (p all < 0.001). Interestingly, USP28 and p53 were highly expressed and correlated in BCa. Consequently, the immunohistochemistry and qPCR results reported in our study suggested the idea that USP28 in coordination with p53 could serve as a marker in BCa progression.Öğe Differential Expression of EGFR-1, MMP-3, and MMP-9 in Spontaneous Abortions, Induced Abortions, and Tubal Pregnancies(De Gruyter Poland Sp Zoo, 2019) Balci, Mahi; Ozdemir, GulhanObjective: The purpose of our study was to assess trophoblastic and uterine sufficiency in miscarriage pathogenesis with immunohistochemical methods and to determine if they could be used as a screening tool for the risk of miscarriage in the future. Material and Method: Placental tissue specimens that were comprised of 20 spontaneous abortions, 23 voluntarily terminated (induced) abortions, and 12 tubal pregnancies were included in this study. Trophoblastic cells and implantation area were evaluated for staining with EGFR-1, MMP-3, and MMP-9 by immunohistochemistry. Results: EGFR-1 expression was more intense and diffuse in decidual cells in the placental bed of spontaneous abortion specimens; this difference was statistically significant (P=0.004). MMP-3 expression was markedly increased in villous and extravillous trophoblastic cells in induced abortions; the difference between the groups was found to be statistically significant (P values ranged from < 0.01 to 0.005). MMP-9 expression tended to be higher in spontaneous abortion and tubal pregnancy specimens, and the results were statistically significant as P values were lower than 0.01. Conclusion: Higher EGFR-1 expression in the decidual tissue of spontaneous abortion specimens suggests that EGFR-1 triggers the migration of extravillous trophoblasts, leading to their destructive invasion. Similarly, MMP-9 immunopositivity might be indicative of aggressive invasion contributing to spontaneous abortion pathogenesis. Relatively high levels of MMP-3 expression in induced abortion specimens used as a control group might be a predictor of successful implantation, whereas its decreased expression might be indicative of risk for pregnancy loss.Öğe Differential expression of P63, P27, P57, Ki-67, and CD146 in hydropic and molar pregnancies(NLM (Medline), 2021) Balci, Mahi; Ozdemir, GulhanOBJECTIVE: To investigate the expressions of immunohistochemical markers P63, P27, P57, Ki-67 and CD146 in hydropic and molar specimens in order to explore their role in the pathogenesis of molar gestations. METHODS: The retrospective study was conducted at the Kırıkkale Medical University, Turkey, and comprised data from 2011 to 2018 related to patients with a definitive pathological diagnosis of hydropic abortus, complete hydatidiform moles and partial hydatidiform moles. Immunoreactivity using antibodies against P63, P27, P57, Ki-67 and CD146 was scored by evaluating the percentage of distinctly stained cells. Data was analysed using SPSS 15. RESULTS: Of the 37 specimens, 10(27%) were hydropic abortus, 17(46%) partial hydatidiform moles and 10(27%) complete hydatidiform moles. Patients with complete hydatidiform moles severe cytologic atypia in CD146-positive extravillous trophoblastic column and florid syncytiotrophoblast proliferation. P57 immunostaining was negative in 9(90%) patients with complete hydatidiform moles, whereas all patients in the two other groups showed positive immunostaining, and they also showed P63 and Ki-67 overexpression in cytotrophoblasts. P27 was expressed in differentiated, non-dividing syncytiotrophoblasts but did not yield any diagnostic aid. CONCLUSIONS: The proliferative activity location varied between molar and nonmolar pregnancies.Öğe The effect of coenzyme Q and selenium on kidney in rats with partial unilateral ureteral obstruction(Aves, 2019) Kirdag, Mustafa Koray; Tuglu, Devrim; Yuvanc, Ercan; Kisa, Ucler; Balci, Mahi; Batislam, Ertan; Yilmaz, ErdalObjective: In this study, we aimed to investigate the antioxidant effects of selenium and coenzyme Q on renal damage in a partial unilateral ureteral obstruction (PUUO) in a rat model. Material and methods: A total of 24 Sprague-Dawley rats were divided into four groups as Group 1 Control Group, Group 2, PUUO Group, Group 3 PUUO + coenzyme Q group, Group 4 PUUO + selenium group. Paraoxonase (PON), total antioxidant capacity (TAC), and total oxidant levels (TOS) were analyzed biochemically from tissue and blood samples. Tissue samples were examined histopathologically. Results: The TAC in the tissues was found to be statistically significantly increased in Groups 3 and 4, compared to Group 2. Tissue TOS was found to be significantly reduced in Groups 3 and 4, compared to Group 2. Serum PON levels were significantly increased in Group 3 and 4, compared to Group 1 and 2. Histopathological examination showed that interstitial inflammation and congestion were lesser in the coenzyme Q and selenium groups than in the PUUO group. A more significant decrease was found in the selenium group than in the coenzyme Q group. Conclusion: Our study results showed that coenzyme Q and selenium reduced the oxidation and the damage in tissue in PUUO in rats.Öğe The effects of dexmedetomidine on renal injury induced by intra-abdominal hypertension in rats(Allied Acad, 2016) Yaman, Ferda; Boybeyi, Ozlem; Kose, Emine Arzu; Balci, Mahi; Kisa, Ucler; Apan, AlpaslanIntroduction: Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are potentially life-threatening conditions in critically ill patients. Laparascopic surgery is the gold standard and has been widely performed for many procedures since its inception in the early 1980s. Pneumoperitoneum is essential for laparascopic surgery. Dexmedetomidine is a potent and highly selective alpha-2 adrenoceptor agonist with sympatholytic, sedative, amnestic and analgesic properties without respiratory depression. There is increasing evidence of its organ protective effects against ischemic and hypoxic injury, including neuroprotection, cardioprotection and renoprotection. The aim of this experimental study was to investigate the effects of the a-2 adrenoceptor agonist, dexmedetomidine on IAH induced by renal injury. Materials and methods: A total of 24 male Wistar-albino rats were randomly separated into 4 groups as the control group (CG, n=6), sham group (SG, n=6), low-dose group (DXLD, n=6) and high-dose group (DXHD, n=6). In CG, no intervention was made. IAH was obtained by insufflating atmospheric air with percutaneous intraperitoneal needle using a manual insufflator of manometer up to 15 mmHg. At the 60th min, in SG, 1.5 ml/100 gr/hr saline was infused. In DXLD, 0.5 mu g/kg/hr, and in DXHD, 1 mu g/kg/hr dexmedetomidine (Precedex, 100 mu g/ml; Abbott, Istanbul, Turkey) was infused intravenously. At the 90th min, a midline incision was made and the left kidney was harvested by median laparatomy for the measurement of tissue nitric oxide (NO), malondialdehyde (MDA) level and histopathological examination for proximal tubule injury by light microscopy. Results: No significant difference was determined between the groups either biochemically or histopathologically (p>0.05). Conclusion: Dexmedetomidine may not provide renoprotective effects within the clinical infusion doses of 0.5 mu g/kg/hr, and 1 mu g/kg/hr.Öğe Electrophysiologic evaluation of cremasteric reflex in experimental orchitis(Elsevier Sci Ltd, 2013) Soyer, Tutku; Inal, Elem; Boybeyi, Ozlem; Balci, Mahi; Aslan, Mustafa Kemal; Aydin, GulumserAim: Absent cremasteric reflex (CR) is a well known but not reliable sign of testicular torsion. We hypothesized that CR can also be altered in other causes of acute scrotum in children. An experimental study was performed to evaluate the clinical and electrophysiological features of CR in orchitis. Method: Eighteen Wistar albino rats were allocated into three groups: control (CG), sham (SG) and orchitis (OG). In CG, after anesthetization with ketamine hydrochloride, the medial site of the anterior superior iliac spine was stimulated to obtain CR electrophysiologically, and latency and duration were recorded with a needle electrode placed in the cremasteric muscle. Electrophysiologic evaluations were performed 24 h after injection of 0.1 ml of 10(6) cfu/ml Escherichia coli (0: 6 strain) in 1 ml of physiologic saline into the right testicle in OG, and 1 ml of saline only in SG. All testicles were sampled to check for orchitis after the electrophysiologic evaluations. Results: CR was obtained in all rats in CG and in 83.3% and 66.6% in SG and OG respectively (p < 0.05). The latency of CR was significantly higher in OG (15.1 +/- 0.9 ms) and SG (15.5 +/- 1.2 ms) than CG (10.5 +/- 0.7 ms) (p < 0.017). The duration of CR was 15.1 +/- 3.2 ms in CG, 16.2 +/- 4.9 ms in SG and 18.5 +/- 3 ms in OG (p > 0.05). Histopathologic confirmation of orchitis was obtained in all testicle samples in OG, and number of neutrophils and total orchitis score was significantly higher in OG than the other groups (p < 0.05). Conclusion: Electrophysiologic parameters of CR may be altered in orchitis. Prolonged latency of CR in orchitis may be due to inflammation of the genitofemoral nerve or cremasteric muscle. (C) 2013 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.Öğe Evaluation of pheniramine maleate and zofenopril in reducing renal damage induced by unilateral ureter obstruction. An experimental study(Termedia Publishing House Ltd, 2021) Yuvanc, Ercan; Tuglu, Devrim; Ozan, Tunc; Kisa, Ucler; Balci, Mahi; Batislam, Ertan; Yilmaz, ErdalIntroduction: Obstruction of the ureter may occur due to congenital, iatro-genic or other reasons. This can cause hydronephrosis in the early stage and can lead to cellular inflammation, necrosis and atrophy in the kidney tissue. The aim of this paper is to evaluate the protective effect of pheniramine maleate (PM) and zofenopril on renal damage caused by hydronephrosis due to unilateral partial ureter obstruction. Material and methods: Twenty-four female Sprague Dawley rats were divided into 4 groups. Group 1: sham group, group 2: partial unilateral ureteral obstruction (PUUO) group, group 3: PUUO + PM group, group 4: PUUO + zofenopril group. Paraoxonase (PON), total antioxidant status (TAS) and total oxidant status (TOS) of tissue and blood samples were measured and calculated. Tissue samples were evaluated histopathologically. Results: An increase in tissue TAS and a decrease in tissue TOS and OSI levels were detected in groups 3 and 4 compared to group 2 (both: p < 0.01). Tissue PON levels showed an increase in groups 3 and 4 compared to groups 1 and 2 (both: p < 0.01). Histopathological evaluation showed a decrease in interstitial inflammation and congestion in groups 3 and 4 compared to the control group (p < 0.001). The decrease was observed to be more significant in group 4 compared to group 3 (p < 0.01). Conclusions: In our experimental study, we observed that PM and zofenopril reduce the oxidation and tissue damage caused by unilateral partial obstruction.Öğe Evaluation of the Neurotoxicity of the Polyethylene Glycol Hydrogel Dural Sealant(Turkish Neurosurgical Soc, 2013) Bakar, Bulent; Kose, Emine Arzu; Balci, Mahi; Atasoy, Pinar; Sarkarati, Bahram; Alhan, Aslihan; Keskil, Ismail SemihAIM: Although polyethylene glycol (PEG) is a neutral, biocompatible hydrophilic polymer recognized for its lack of interaction with biological barrier, its neurotoxicity has not been clearly identified in neurosurgery. This study is constructed to evaluate the possible neurotoxicity of a PEG hydrogel dural sealant. MATERIAL and METHODS: After a burrhole was opened in the left parietal bone of the twenty five Wistar albino rats, the dura mater and cerebral cortex were incised and the experimental material (activated polyethylene glycol and polyethylene imine) was sprayed into the burrhole. Then brain tissues were harvested for histopathological and biochemical studies at 72 hours to investigate the acute stage changes and on 15th day to evaluate the chronic stage changes. RESULTS: There were statistically significant differences among the groups regarding the comparison of the values of the PMNL cell infiltration grades, gliosis and congestion in both acute and chronic stages. However, the values of the MNL cell infiltration grades, edema and fibrin formation, lipid peroxidation levels of harvested brain tissues were similar in all groups. CONCLUSION: Although this study did not present the detailed histopathological and biochemical evaluation results, it indicated that the application of the PEG-based hydrogel sealant was not associated with neurotoxicity, delayed healing, or degenerative changes.Öğe Histological and biomechanical effects of zoledronate on fracture healing in an osteoporotic rat tibia model(Turkish Joint Diseases Foundation, 2016) Turker, Mehmet; Aslan, Arif; Cirpar, Meric; Kochai, Alauddin; Tulmac, Ozlem Banu; Balci, MahiObjectives: This study aims to investigate the effects of zoledronate therapy on histological and biomechanical properties of bone healing via a fracture model generated on osteoporotic rat tibiae. Materials and methods: Ovariectomized 40 Wistar-Dawley female rats weighing 300 g to 350 g were used in the study. After one week, 2 IU/g heparin injection was started subcutaneously. After four weeks of daily injections, osteoporosis was ensued proven with bone mineral density measurements. Osteoporotic rats were separated into four equal groups randomly as group A (control), group B (calcium and vitamin D), group C (0.1 mg/kg subcutaneous zoledronic acid), and group D (calcium and vitamin D / 0.1 mg/kg subcutaneous zoledronic acid). Six weeks later, all rats were sacrificed, their tibiae were resected, and histopathologic and biomechanical studies were performed. Results: Group C (30.2 +/- 1 Nm) and group D (33.3 +/- 3 Nm) had significantly higher peak torque values than group A (21.6 +/- 6 Nm) and group B (23.6 +/- 4 Nm) (p=0.007 and p=0.005, respectively). Group C (1.8) and group D (2.0) had higher stiffness values than group A (1.4) and group B (1.7); however, the difference was not statistically significant (p>0.05 for all). Conclusion: According to histopathological and biomechanical test results, single dose zoledronic acid treatment improves fracture healing in an osteoporotic rat fracture model. Orally administered daily calcium and vitamin D treatment had no effect on fracture healing. There was no additional improvement in fracture healing when calcium and vitamin D treatment was added to zoledronic acid treatment. Positive effects of zoledronic acid treatment on osteoporotic fracture healing and callus quality should be shown by future clinical studies.Öğe Investigation of the antioxidant effects of pheniramine maleate and nebivolol on testicular damage in rats with experimentally induced testis torsion(Acta Cirurgica Brasileira, 2018) Yuvanc, Ercan; Tuglu, Devrim; Ozan, Tunc; Kisa, Ucler; Balci, Mahi; Batislam, Ertan; Yilmaz, ErdalPurpose: To investigate the biochemical, histopathologic, and spermatogenetic changes in the detorsionated testicle after experimental torsion and to study the antioxidant effects of pheniramine maleate and nebivolol. Methods: Twenty-four Sprague-Dawley male rats were divided into 4 groups: Group 1: Sham; Group 2: Torsion/Detorsion (T/D); Group 3: T/D + Pheniramine maleate (PM); Group 4: T/D + Nebivolol (NB) group. Paroxanase (PON), total antioxidant status (TAS), total oxidant status (TOS), and oxidative stres index (OSI) were measured, and spermatogenetic and histopathologic evaluation was performed in tissue and blood samples. Results: The evaluation of tissue TAS indicated no statistically significant difference in Group 3 compared to Group 2. A statistically significant increase was detected in Group 4 compared to Group 2. Serum PON levels revealed a statistically significant increase in Groups 3 and 4 compared to Groups 1 and 2. The Johnsen testicular biopsy score decreased in Groups 3 and 4, but the decrease was not statistically significant. Conclusions: Pheniramine maleate and nebivolol have antioxidant effects against ischemia-reperfusion damage. They also support tissue recovery, which is more significantly observed by nebivolol.Öğe Mature cystic teratoma mimicking meningomyelocele(Springer, 2021) Balci, Mahi; Yuksel, Ulas; Akkaya, Merva Aydemir; Akkaya, Suleyman; Sagsoz, NevinTeratomas are benign germ cell tumors originating from at least two germ layers, mostly of ectodermal and mesodermal origin. Mature teratomas are the most common subtype and develop from well-differentiated germ cells. Although the location is extragonadal in infants and young children, gonadal involvement occurs in adults. Midline defects can be diagnosed on prenatal imaging. In this case report, a newborn with mature cystic teratoma and a prenatal lumbar midline closure defect was presented. The perinatal preliminary diagnosis was meningomyelocele. However, a cystic sac containing exophytic solid tumoral tissues approximately 5 x 5 x 3 cm in size was seen macroscopically in the lumbar region after the birth, and this tumor was totally resected. After tumor excision, spina bifida aperta and vertebral exophytic bony tissue compatible with diastematomyelia were observed at the bottom of the surgical field and were totally resected. In the short-term follow-up, no additional problem occurred. The histopathological diagnosis was mature cystic teratoma. In conclusion, extragonadal teratoma accompanying diastematomyelia could easily be mistaken for meningomyelocele or other common malformations. Perinatal diagnosis should be provided using radiodiagnostic methods, and total surgical excision and accurate pathological diagnosis are essential to avoid the risk of recurrence.Öğe A neglected case of giant synovial chondromatosis in knee joint(African Field Epidemiology Network-Afenet, 2015) Serbest, Sancar; Tiftikci, Ugur; Karaaslan, Fatih; Tosun, Haci Bayram; Sevinc, Huseyin Fatih; Balci, MahiSynovial chondromatosis is a rare benign condition arising from the synovial membrane of the joints, synovial sheaths or bursae around the joints. Primary synovial chondromatosis typically affects the large joints in the third to fifth decade of life. The purpose of this case report is to document this rare synovial pathology, which required open synovectomy and debridement to eradicate it. In our case, the biggest sized SOC was 20x19x6 cm, although there were many joint mice. Our case had the biggest SOC ever extracted, which to the best of my knowledge has not been reported earlier.
