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Gunes, Mustafa,Kemik, Ahu Serap,Pirincci, Necip,Gecit, Ilhan,Taken, Kerem,Yuksel, Mehmet Bilgehan,Kaba, Mehmet,Eryilmaz, Recep Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.2
Our aim was to test the hypothesis that preoperative serum levels of matrix metalloproteinase-7 (MMP-7) and -9 (MMP-9) and tissue inhibitor of matrix metalloproteinase (TIMP-1) levels correlate with pathological features. Serum levels of MMP-7, and MMP-9 and TIMP-1 were determined in 90 bladder cancer patients and 40 healthy controls using an enzyme linked immunosorbent assay. Preoperative serum MMP-7 and MMP-9 levels were significantly higher in cancer patients than control groups (p<0.001). In contast, serum TIMP-1 levels were lower (p<0.001). Alteration in MMP-7, and MMP-9, and TIMP-1 production may contribute to tumor angiogenesis and be associated with clinic-pathological features.
Mehmet Cemal Kaya,Yasin Bez,Ibrahim Fatih Karababa,Ali Emhan,Nurten Aksoy,Mahmut Bulut,Mehmet Gunes,Abdullah Atli,Salih Selek 대한신경정신의학회 2013 PSYCHIATRY INVESTIGATION Vol.10 No.3
Objective In recent years, many published studies have focused on the relationship between oxidative stress and psychiatric disorders. However, studies in generalized anxiety disorder (GAD) are few despite relatively high prevalence rates. In an attempt to fill this gap in the literature we aimed to measure serum levels of free sulphydryl, an important member of antioxidant defense mechanisms, of the patients with GAD. Methods A total of 35 (23 female, 12 male) GAD patients without any other co-morbid medical or psychiatric disorder and 35 (23 female, 12 male) healthy controls have been included in the study. Disease severity of the patients were quantified by using the Hamilton Anxiety Rating Scale (HAM-A). Serum free sulphydryl group levels of patients and healthy controls were measured in an appropriate way. Results Mean level of serum sulphydryl groups was significantly lower in the patient group. There was a negative correlation between their level and the disease duration. However, they did not show any significant correlation with the disease severity. Conclusion Decreased serum sulphydryl level observed in pure GAD patients suggests an increased oxidative stress in these patients. Well designed future researches are needed to replicate our findings and to test the implications of the present study.
Mehmet Emin Gunes,Ahmet Cem Dural,Cevher Akarsu,Deniz Guzey,Nuri Alper Sahbaz,Evrim Kucur Tulubas,Sezer Bulut,Turgut Donmez 대한외과학회 2019 Annals of Surgical Treatment and Research(ASRT) Vol.97 No.6
Purpose: The use of nondepolarizing neuromuscular blocking agents (NMBAs) may affect intraoperative neuromonitoring (IONM) during anesthesia used during thyroid and parathyroid surgery. Methods: The use of sugammadex was evaluated in a prospective clinical study during thyroid surgery. Between July 2018 and January 2019, 129 patients were prospectively randomized to either the sugammadex group (group B) or the control group (group A). Group A patients underwent standardized IONM during thyroidectomy, while group B patients used an NMBA-reversal protocol comprised of rocuronium (0.6 mg/kg) in anesthesia induction and sugammadex (2 mg/kg) after first vagal stimulation (V0). A peripheral nerve stimulator was used to monitor the neuromuscular transmission. Results: In our clinical study, it took 26.07 ± 3.26 and 50.0 ± 8.46 minutes to reach 100% recovery of laryngeal electromyography at injection of the sugammadex group (2 mg/kg) and the control group, respectively (P < 0.001). The train-of-four ratio recovered from 0 to >0.9 within 4 minutes after administering 2 mg/kg of sugammadex at the beginning of resection. Surgery time was significantly shorter in group B than in group A (P < 0.001). Transient recurrent laryngeal nerve (RLN) paralysis was detected in 4 patients from group A and in 3 patients from group B (P = 0.681). There was no permanent RLN paralysis in the 2 groups. Conclusion: Our clinical study showed that sugammadex effectively and rapidly improved the inhibition of neuromuscular function induced by rocuronium. The implementation of the nondepolarizing neuromuscular block recovery protocol may lead to tracheal intubation as well as favorable conditions for IONM in thyroid surgery.
Serum Levels of Trace Elements in Patients with Prostate Cancer
Kaba, Mehmet,Pirincci, Necip,Yuksel, Mehmet Bilgehan,Gecit, Ilhan,Gunes, Mustafa,Ozveren, Huseyin,Eren, Huseyin,Demir, Halit Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.6
Background: Trace elements are major components of biological structures; however, excessive levels of these elements can be toxic. Materials and Methods: In the present study, serum levels of trace elements were measured in 30 patients with newly diagnosed as prostate cancer and 32 healthy volunteer by using furnace atomic absorption spectrophotometry. Results: It was found that there was an increase in serum levels of Co, Cu, Mg and Pb (p<0.05), whereas a decrease in serum levels of Fe, Mn, and Zn levels in patients with prostate cancer (p<0.05). Conclusions: These changes may be important in the pathogenesis of prostate cancers; however, further prospective studies are needed to identify relationships between prostate cancer and trace elements.
Kaba, Mehmet,Pirincci, Necip,Benli, Erdal,Gecit, Ilhan,Gunes, Mustafa,Yuksel, Mehmet Bilgehan,Tok, Adem,Kemik, Ahu Sarbay Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.1
Background: Evidence indicates that Dickkopf-1 (DKK-1) levels may be a biomarker for cancer risk. The aim of this study was to assess DKK-1 and its correlation with clinic-pathological features in patients with bladder cancer. Materials and Methods: DKK-1 levels were determined in serum samples from 90 patients with bladder cancer before transurethral tumor resection. The concentrations of DKK-1 were determined by using enzyme linked immune-sorbent assay (ELISA). Results: Elevated preoperative DKK-1 levels were associated with tumor stage (p<0.001), grade (p<0.001) and histological grade (p<0.001). Conclusions: The results of our study demonstrated that the level of serum DKK-1 is correlated with both disease progression and increase in the tumor grade. Preoperative serum DKK-1 elevation may thus represent a novel marker for the determination of bladder cancer and the detection of patients with a likely poor clinical outcome.
Pirincci, Necip,Gecit, Ilhan,Gunes, Mustafa,Kemik, Ahu Sarbay,Yusel, Mehmet Bilgehan,Kaba, Mehmet,Ceylan, Kadir,Aslan, Mehmet Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.12
Although alteration in the haptoglobin phenotype has been reported in patients with bladder cancer, serum haptoglobin levels have not been evaluated. We hypothesized that serum haptoglobin can be used as a biomarker. The aim of this study was to evaluate the expression of haptoglobin in bladder cancer and to determine the relationship with clinicopathological features. A total of 68 serum specimens obtained before surgery were used to investigate haptoglobin expression using the sandwich ELISA technique. Serum haptoglobin levels were higher in the patients with bladder cancer compared to healthy controls (p<0.0001). Additionally, the levels of haptoglobin protein increased with increasing tumor grades (p<0.001) and were significantly higher in patients with metastatic disease and the presence of lymphovascular involvement, lymph node metastases and increasing tumor burden (p<0.0001). This study suggests that elevated haptoglobin levels are associated with a higher stage, grade, and extent of distant metastasis and larger tumor size. Haptoglobin may therefore provide a useful diagnostic and treatment biomarker for patients with bladder cancer.
Morphological Characterization of Several Morus Species from Turkey
Mustafa Ozgen,Mehmet Gune?,Ya?ar Akca,Nurgul Turemi?,Muruvvet Ilgin,Gokhan Kizilci,Ummugulsum Erdo?an,Sedat Serce 한국원예학회 2009 Horticulture, Environment, and Biotechnology Vol.50 No.1
Among edible mulberry (Morus spp.) species, M. alba, M. nigra, M. rubra, and M. laevigata grow in Turkey. Several regions of Turkey were surveyed during the 2007 and 2008 growing seasons. More than 200 promising mulberry accessions were visited and preliminary tree and fruit characteristics were investigated. Based on the first year results, a total of 22 superior accessions from four different species were morphologically characterized in the second year. Considerable variations were observed for most of the traits. For example, fruit weight ranged from 3.3 to 8.2 g for an average of 4.9 g. M. nigra accessions had much smaller mean values when compared to those of M. rubra and M. alba. The juice yield ranged from 56.1 to 67.8% for M. nigra accessions, 20.0 to 31.1% for M. rubra and 25.6 to 35.0% for M. alba. The mean total acidity of M. nigra was 2.7%, 3.1-fold higher than those of M. rubra and M. alba accessions. Soluble solids ranged from 14.1 to 27.1% for an average of 21.8%. These fruit traits were subjected to principle component analysis and the results indicated that M. nigra accessions were grouped together, while M. laevigata accession was distinct from other genotypes. The accessions of M. rubra and M. alba separated from M. nigra and M. laevigata accessions, although the two groups did not separate from each other.
Levels of Serum Trace Elements in Renal Cell Carcinoma Cases
Pirincci, Necip,Gecit, Ilhan,Gunes, Mustafa,Kaba, Mehmet,Tanik, Serhat,Yuksel, Mehmet Bilgehan,Arslan, Harun,Demir, Halit Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1
Trace elements which are essential components of biological structures may also be toxic when present at levels above the amounts required for biological function. In our study, trace element levels were measured with furnace atomic absorption spectrophotometry in 33 newly diagnosed renal cell carcinoma cases (preoperative) and 32 healthy controls. When compared with the control group, it was found that the levels of cadmium (Cd), lead (Pb) were higher and the levels of zinc (Zn), iron (Fe) and manganese (Mn) were lower in the patient group. These changes may be important in the formation of renal cell carcinoma, a question which should be explored with postoperative comparative studies.
Effect of Septoplasty on Voice Quality: A Prospective-Controlled Trial
Safak Gulec,Ismail Kulahli,Mehmet Ilhan Sahin,Kerem Kokoğlu,Murat Salih Gunes,Deniz Avci,Turan Arli 대한이비인후과학회 2016 Clinical and Experimental Otorhinolaryngology Vol.9 No.3
Objectives. The purpose is to investigate effect of septoplasty and widened nasal patency on voice quality. Methods. Fifty patients who undergone septoplasty were included in the study. Thirty-three people who had similar age and distribution were enrolled as control group. Before and 1 and 3 months after surgery, anterior rhinomanometry, voice analysis by Multi-Dimensional Voice Program, and spectrographic analysis were performed to patients. The recordings of /a/ vowel were used to evaluate average fundamental frequency (F0), jitter percent, and shimmer percent. In spectrographic analyses, F3–F4 values for the vowels /i, e, a, o, and u/, nasal formant frequencies of the consonants /m/ and /n/ in the word /mini/, and 4 formant frequencies (F1, F2, F3, and F4) for nasalized /i/ vowel following a nasal consonant /n/ in the word /mini/ were compared. The differences in nasal resonance were evaluated. All patients were asked whether change in their voices after the surgery. Preoperative and postoperative voice parameters and anterior rhinomanometry results were compared separately with the control group as well as in the patient group itself. Results. Preoperative total nasal resistance (TNR) values of patients were higher than the control group (P=0.001). TNR values of patients measured one day before surgery and after surgery in the 1st and 3rd months were different and these differences were significant statistically (P=0.001). There was no significant difference between the voice analysis parameters in preoperative, postoperative 1st, and 3rd months. As a result of their subjective reviews, 12 patients (36%) noted their voices were better than before surgery and 20 patients (61%) noted no change before and after surgery. Conclusion. Providing widened nasal cavity has no effect on voice quality.
Evaluation of C. Albicans and S. Mutans adherence on different provisional crown materials
Ozel, Gulsum Sayin,Guneser, Mehmet Burak,Inan, Ozgur,Eldeniz, Ayce Unverdi The Korean Academy of Prosthodonitics 2017 The Journal of Advanced Prosthodontics Vol.9 No.5
PURPOSE. Bacterial adhesion on provisional crown materials retained for a long time can influence the duration for which permanent prosthetic restorations can be healthily worn in the oral cavity. The aim of this study was to compare seven different commonly used provisional crown materials with regard to Streptococcus mutans and Candida albicans surface adhesion. MATERIALS AND METHODS. For each group, twenty specimens of the provisional fixed prosthodontic materials TemDent ($Sch{\ddot{u}}tz$), Imident (Imicryl), Tab 2000 (Kerr), Structur Premium (Voco), Systemp (Ivoclar Vivadent), Acrytemp (Zhermack), and Takilon-BBF (Takilon) were prepared (diameter, 10.0 mm; height, 2.0 mm). Surface roughness was assessed by atomic force microscopy. Each group was then divided into 2 subgroups (n=10) according to the microbial suspensions used: S. mutans and C. albicans. The specimens were incubated at $37^{\circ}C$ with S. mutans or C. albicans for seven days. Bacterial adherence on surfaces was assessed using the 2,3-bis[2-methyloxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide (XTT) assay. RESULTS. S. mutans showed maximum adhesion to Structur, followed by Systemp, Acrytemp, Takilon, Tab 2000, Imident, and TemDent (P<.05). The highest vital C. albicans adhesion was noted on Takilon, followed by Imident and Tab 2000; the lowest adhesion was noted on Systemp (P<.05). CONCLUSION. The materials showed significant differences in the degree of bacterial adhesion. C. albicans showed higher surface adhesion than S. mutans on provisional crown and fixed partial denture denture materials.