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| 1 | Outcomes of partial splenic embolization in patients with massive splenomegaly due to idiopathic portal hypertension显示文摘AIM To determine the outcomes of partial splenic em-bolization(PSE) for massive splenomegaly due to idiopathic portal hypertension(IPH).METHODS In this prospective study, we evaluated the charac-teristics and prognosis of consecutive patients with IPH who underwent PSE for all indications at a single medical center between June 2009 and January 2015. The inclusion criteria were: presence of hypersplenism, massive splenomegaly, and resultant pancytopenia. The exclusion criteria were: presence of other diseases causing portal hypertension. During the post-PSE period, the patients were hospitalized. All patients underwent abdominal computed tomography imaging 4 wk post-PSE to determine total splenic and non-infarcted splenic volumes.RESULTS A total of 11 patients, with median age of 33.27 ± 4.8 years, were included in the study. Mean spleen size was 22.9 cm(21-28 cm), and severe hypersplenismwas diagnosed in all patients before PSE. Post-PSE, leukocyte and platelet counts increased significantly, reaching peak levels in the second week with gradual decreases thereafter. Liver function tests did not exhibit significant changes during post-intervention follow-up. All patients developed post-embolization syndrome, and one patient experienced serious complications; all complications were successfully treated with conservative therapy and no death occurred. CONCLUSION Our findings showed that PSE has a lower complication rate than previously-reported surgical complication rates, which supports this intervention as a viable alternative for high-risk operable patients with severe hypersplenism. | Omer Ozturk Gonca Eldem Bora Peynircioglu Taylan Kav Aysegul Gormez Barbaros Erhan Cil Ferhun Balkanci Cenk Sokmensuer Yusuf Bayraktar | 2016 | World Journal of Gastroenterology2016,22,43: | 18 |
| 2 | Tensile and Spring-Back Behavior of DP600 Advanced High Strength Steel at Warm Temperatures显示文摘In recent years,the use of advanced high strength steels in automotive industry has been increased remarkably.Among advanced high strength steels,dual phase(DP) steels have gained a great attention owing to a combination of high strength and good formability.However,high strength usually increases the spring-back behavior of the material,which creates problems for the parts during the assembly.Thus,the uniaxial tensile deformation and spring-back behaviors of DP600 advanced high strength steel were investigated in rolling(0°),diagonal(45°),and transverse(90°) directions in the temperature range from room temperature(RT) to 300 ℃.All tests were performed at a deformation speed of 25 mm/min.A V-shaped die(60°) was used for the spring-back measurements.The results indicated that the formability and spring-back of the material were decreased with increasing the temperatures.The material showed complex behaviors in different directions and at different temperatures. | F Ozturk S Toros S Kilic | 2009 | Journal of Iron and Steel Research(International)2009,16,6: | 17 |
| 3 | Insulin sensitizers for the treatment of non-alcoholic fatty liver disease显示文摘Non-alcoholic fatty liver disease(NAFLD) is the leading cause of liver disease in the Western world and is closely associated with metabolic syndrome,which includes hypertension,central obesity,dyslipidemia and insulin resistance.NAFLD includes a wide spectrum of liver alterations,ranging from simple hepatic steatosis to variable degrees of fibrosis,cirrhosis and even hepatocellular carcinoma.Although the etiology and progression of the disorder remain poorly understood,insulin resistance is considered to play a pivotal role in the pathogenesis.Insulin sensitizers such as biguanides,thiazolidinediones(TZDs),glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase 4 inhibitors have been studied as therapeutic approaches for NAFLD in recent years.Metformin improves insulin sensitivity and serum alanine transaminase and aspartate transaminase(ALT/AST) levels in the majority of subjects; however,it has no significant effect on liver histology.TZDs improve insulin sensitivity,serum ALT/ AST levels and histology in some cases,but there are some concerns about the safety of long-term therapy.Selection of appropriate patients for avoiding side effects and the treatment of underlying disease are themain points.These drugs are the best choice for the treatment of NAFLD in patients with type 2 DM who are also candidates for treatment with an insulin sensitizer.The present review provides an overview of insulin sensitizers in the treatment of NAFLD. | Zeynel Abidin Ozturk Abdurrahman Kadayifci | 2014 | World Journal of Hepatology2014,6,4: | 14 |
| 4 | Resveratrol attenuates oxidative stress and histological alterations induced by liver ischemia/reperfusion in rats显示文摘AIM:To investigate the effects of resveratrol on liver ischemia/reperfusion (I/R) injury in rats. METHODS: A total of 40 male Sprague-Dawley rats weighing 240-290 g were randomized into four groups of ten: (1) controls: data from unmanipulated animals; (2) sham group: rats subjected to the surgical procedure, except for liver I/R, and given saline; (3) I/R group: rats underwent liver ischemia for 45 min followed by reperfusion for 45 min; (4) I-R/Resveratrol group: rats pretreat- ed with resveratrol (10 μmol/L,iv). Liver tissues wweerre obtained to determine antioxidant enzyme levels and for biochemical and histological evaluation. RESULTS: Plasma aminotransferase activities were higher in the I/R group than in the I-R/Resveratrol group. Malondialdehyde levels and the hepatic injury score decreased, while superoxide dismutase, catalase ,and glutathione peroxidase levels increased in group 4 compared to group 3. In group 4, histopathological changes were significantly attenuated in resveratrol-treated livers. CONCLUSION: These results suggest that resveratrol has protective effects against hepatic I/R injury, and is a potential therapeutic drug for ischemia reperfusion-related liver injury. | Ercan Gedik Sadullah Girgin Hayrettin Ozturk Basra Deniz Obay Hulya Ozturk Huseyin Buyukbayram | 2008 | World Journal of Gastroenterology2008,14,46: | 14 |
| 5 | Gallbladder polyps: Factors affecting surgical decision显示文摘AIM: To determine the factors affecting the decision to perform surgery, and the efficiency of ultrasonography (USG) in detecting gallbladder polyps (GP). METHODS: Data for 138 patients who underwent cholecystectomy between 1996 and 2012 in our clinic with a diagnosis of GP were retrospectively analyzed. Demographic data, clinical presentation, principal symptoms, ultrasonographic and histopathological findings were evaluated. Patients were evaluated in individual groups according to the age of the patients (older or younger than 50 years old) and polyp size (bigger or smaller than 10 mm) and characteristics of the polyps (pseudopolyp or real polyps). χ 2 tests were used for the statistical evaluation of the data. RESULTS: The median age was 50 (26-85) years and 91 of patients were female. Of 138 patients who underwent cholecystectomy with GP diagnosis, only 99 had a histopathologically defined polyp; 77 of them had pseudopolyps and 22 had true polyps. Twenty-one patients had adenocarcinoma. Of these 21 patients, 11 were male, their median age was 61 (40-85) years and all malignant polyps had diameters > 10 mm (P< 0.0001). Of 138 patients in whom surgery were performed, 112 had ultrasonographic polyps with diameters < 10 mm. Of the other 26 patients who also had polyps with diameters > 10 mm, 22 had true polyps. The sensitivity of USG was 84.6% for polyps with diameters > 10 mm (P < 0.0001); however it was only 66% in polyps with diameters < 10 mm. CONCLUSION: The risk of malignancy was high in the patients over 50 years old who had single polyps with diameters > 10 mm. | Pinar Sarkut Sadik Kilicturgay Ali Ozer Ersin Ozturk Tuncay Yilmazlar | 2013 | World Journal of Gastroenterology2013,19,28: | 12 |
| 6 | Role of triamcinolone in radiation enteritis management显示文摘AIM:To investigate the role of triamcinolone in the management of acute and chronic enteritis caused by pelvic radiotherapy.METHODS:Twenty-eight patients with rectum adenocarcinoma or endometrium adenocarcinoma were studied.We compared the results of 14 patients treated with injected triamcinolone acetonide(TA)with those of 14 patients who were not treated with TA.For the TA group,40 mg of TA was injected intramuscularly on the 1st,11th and 21st d of radiotherapy;the control group received no injections.All of the study participants had a median age of 65 years,had undergone postoperative radiotherapy and were evaluated weekly using Radiation Therapy Oncology Group and the European Organization for Research and Treatment of Cancer Acute Morbidity Score Criteria,and complete blood counts for every 10 d.RESULTS:Triamcinolone was found to effectively prevent and treat radiation-induced acute gastrointestinal(enteritis)and genitourinary(cystitis)side effects(P=0.022 and P=0.023).For the lower GI side effect follow up,11 patients in the control group had Grade 2toxicity and 3 patients had Grade 1 toxicity.In the TA group,5 patients had Grade 2 toxicity and 9 patients had Grade 1 toxicity.For the genitourinary system side effect follow up,4 patients had Grade 2 toxicity and 6patients had Grade 1 toxicity.Additionally,2 patients had Grade 2 toxicity and 2 patients had Grade 1 toxicity.The neutrophil counts did not differ between the TA group and the control group.There was no meaningful difference between age groups and primary cancers.At the 12th mo of follow up,there were no differences between groups for chronic side effects.CONCLUSION:Triamcinolone is a moderately potent steroid,that is inexpensive and has a good safety profile.It would be beneficial for reducing medical expenses related to treatment of radiation induced enteritis. | Eren Cetin Aysen Sevgi Ozturk Haluk Orhun Sukran Ulger | 2014 | World Journal of Gastroenterology2014,20,15: | 12 |
| 7 | Interaction of L-Arginine-methyl ester and Sonic hedgehog in liver ischemia-reperfusion injury in the rats显示文摘AIM: To investigate the role of Sonic hedgehog (Shh) on the course of liver ischemia and reperfusion (I/R) in rats, and the interaction between treatment with nitric oxide donor L-Arginine-methyl ester (L-Arg) and up-regulation of Shh expression. METHODS: A total of 30 male Sprague-Dawley rats weighing 220-240 g were used in this study. Sham-control group (G1, n = 10): a sham operation was performed (except for liver I/R). I/R-untreated group (G2, n = 10): rats underwent liver ischemia for 1 h followed by reperfusion for 45 min. I/R-L-Arg group (G3, n = 10): after performing the same surgical procedure as in group 2, animals were treated with L-Arg. Liver tissues were taken for determination of malondialdehyde (MDA) levels, and biochemical and histological evaluations were made. RESULTS: Plasma alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and γ-glutamyltranspeptidase (GGT) activities were higher in group 2 than in group 3. MDA values and the hepatic injury score decreased in the L-Arg treated group compared to the I/R-untreated group. In group 2, the hepatocytes were swollen with marked vacuolization. Group 3 rats showed well-preserved liver parenchyma, with hepatocytes extending from the central vein. The morphology of the hepatocytes and the sinusoidal structures was normal, without any signs of congestion. Mild Shh positive immunostaining was detected in group 2 animals. The expression of immunoreactive cells was increased markedly in liver tissue from I/R-L-Arg rats.CONCLUSION: Our findings suggest that Shh molecules are critical factors in the pathophysiology of inflammatory liver injury induced by I/R. In addition, NO plays an important role in the immunohistochemical expression of these molecules. | Mehmet Cudi Tuncer Hayrettin Ozturk Huseyin Buyukbayram Hulya Ozturk | 2007 | World Journal of Gastroenterology2007,13,28: | 11 |
| 8 | Complications of intravitreal triamcinolone acetonide for macular edema and predictive factors for intraocular pressure elevation显示文摘AIM: To investigate the complications of intravitreal triamcinolone acetonide (IVTA) for the treatment of macular edema, and to determine the risk factors for intraocular pressure (IOP) elevation. METHODS: Charts of patients with macular edema secondary to branch retinal vein occlusion (BRVO), diabetic retinopathy and uveitis who had received IVTA injections were reviewed to document its complications. IOP elevation was defined as a pressure of ≥24mmHg at some point during follow-up. Multivariate logistic regression analysis was performed to characterize baseline risk factors for this elevation. RESULTS: The study included 111 eyes of 65 female and 46 male patients with a mean follow-up of (11.6±5.1) months. Of the 111 eyes, 52 (46.8%) had macular edema secondary to BRVO, 44 (39.6%) had clinically significant diabetic macular edema (CSDME) and 15 (13.5%) had non-infectious uveitis with macular edema. IOP was recorded ≥24mmHg in 38 eyes (34.2%) during the follow-up. Higher baseline IOP (P =0.022), younger age (P =0.003), and male gender (P = 0.014) were significant risk factors for IOP elevation after IVTA injection. Eyes with prior vitrectomy were less likely to have IOP elevation (P =0.054). Two eyes (5.2% of eyes with increased IOP) underwent trabeculectomy, and 9 eyes (16.3% of the phakic eyes) necessitated cataract surgery. Other complications included branch vein occlusion (1.8%), sterile endophthalmitis (0.9%) and pseudohypopyon (0.9%). CONCLUSION: IVTA has side effects with IOP elevation and cataract formation being the two most common. A subset of patients is more prone to developing increased IOP following IVTA, namely, younger male patients with higher baseline IOP. | Kenan Sonmez Faruk Ozturk | 2012 | International Journal of Ophthalmology(English edition)2012,5,6: | 10 |
| 9 | Common telomerase reverse transcriptase promoter mutations in hepatocellular carcinomas from different geographical locations显示文摘AIM: To determine the mutation status of human telomerase reverse transcriptase gene(TERT) promoter region in hepatocellular carcinoma(HCC) from different geographical regions.METHODS: We analyzed the genomic DNA sequences of 59 HCC samples comprising 15 cell lines and 44 primary tumors,collected from patients living in Asia,Europe and Africa.We amplified a 474 bp DNA fragment of the promoter region of TERT gene including the 1295228 and 1295250 sequence of chromosome 5 by using PCR.Amplicons were then sequenced by Sanger technique and the sequence data were analyzed with by using DNADynamo software in comparison with wild type TERT gene sequence as a reference.RESULTS: The TERT mutations were found highly frequent in HCC.Eight of the fifteen tested cell lines displayed C228 T mutation,and one had C250 T mutation with a mutation frequency up to 60%.All of the mutations were heterozygous and mutually exclusive.Ten out of forty-four tumors displayed C228 T mutation,and additional five tumors had C250 T mutation providing evidence for mutation frequency of 34% in primary tumors.Considering the geographic origins of HCC tumors tested,TERT promoter mutation frequencies were higher in African(53%),when compared to non-African(24%) tumors(P = 0.056).There was also a weak inverse correlation between TERT promoter mutations and murine double minute 2 single nucleotide polymorphism 309 TG polymorphism(P = 0.058).Mutation frequency was nearly two times higher in established HCC celllines(60%) compared to the primary tumors(34%).CONCLUSION: TERT promoter is one of most frequent mutational targets in liver cancer,and hepatocellular carcinogenesis is highly associated with the loss of telomere-dependent cellular senescence control. | Dilek Cevik Gokhan Yildiz Mehmet Ozturk | 2015 | World Journal of Gastroenterology2015,21,1: | 6 |
| 10 | Primary glomerular diseases in the elderly显示文摘Primary glomerular diseases in the elderly population are a frustrating topic due to difficulties in both the diagnosis and decision making about treatment. The most frequent type of primary glomerular disease in elderly is membranous nephropathy; while its counterpart in younger population is Ig A nephropathy. The most frequent cause of nephrotic syndrome in the elderly is also membranous nephropathy. Pauci-immune crescentic glomerulonephritis(GN) rate increases both in elderly and very elderly population. Pauci-immune crescentic GNs should be regarded as urgencies in elderly patients as in their younger counterparts due to potential for causing end-stage renal disease in case of delayed diagnosis and treatment, and also causing mortality due to alveolar hemorrhage in patients with pulmonary involvement. Renal biopsy is the inevitable diagnostic method in the elderly as in all other age groups. Renal biopsy prevents unnecessary treatments and provides prognostic data. So advanced age should not be the sole contraindication for renal biopsy. The course of primary glomerular diseases may differ in the elderly population. Acute kidney injury is more frequent in the course and renal functions may be worse at presentation. These patients are more prone to be hypertensive. The decision about adding immune suppressive therapies to conservative methods should be made considering many factors like co-morbidities, drug side effects and potential drug interactions, risk of infection, patient preference, life expectancy and renal functions at the time of diagnosis. | Abdullah Sumnu Meltem Gursu Savas Ozturk | 2015 | World Journal of Nephrology2015,4,2: | 6 |
| 11 | It is safe to use transdermal glyceryl trinitrate to lower blood pressure in patients with acute ischaemic stroke with carotid stenosis显示文摘Background There is concern that blood pressure(BP)lowering in acute stroke may compromise cerebral perfusion and worsen outcome in the presence of carotid stenosis.We assessed the effect of glyceryl trinitrate(GTN)in patients with carotid stenosis using data from the Efficacy of Nitric Oxide in Stroke(ENOS)Trial.Methods ENOS randomised 4011 patients with acute stroke and raised systolic BP(140-220 mm Hg)to transdermal GTN or no GTN within 48 hours of onset.Those on prestroke antihypertensives were also randomised to stop or continue their medication for 7 days.The primary outcome was the modified Rankin Scale(mRS)at day 90.Ipsilateral carotid stenosis was split:<30%;30-<50%;50-<70%;≥70%.Data are ORs with 95%CIs adjusted for baseline prognostic factors.results 2023(60.5%)ischaemic stroke participants had carotid imaging.As compared with<30%,≥70%ipsilateral stenosis was associated with an unfavourable shift in mRS(worse outcome)at 90 days(OR 1.88,95%CI 1.44 to 2.44,p<0.001).Those with≥70%stenosis who received GTN versus no GTN had a favourable shift in mRS(OR 0.56,95%CI 0.34 to 0.93,p=0.024).In those with 50-<70%stenosis,continuing versus stopping prestroke antihypertensives was associated with worse disability,mood,quality of life and cognition at 90 days.Clinical outcomes did not differ across bilateral stenosis groups.Conclusions Following ischaemic stroke,severe ipsilateral carotid stenosis is associated with worse functional outcome at 90 days.GTN appears safe in ipsilateral or bilateral carotid stenosis,and might improve outcome in severe ipsilateral carotid stenosis. | Jason P Appleton Lisa J Woodhouse Andrew Belcher Daniel Bereczki Eivind Berge Valeria Caso Hui Meng Chang Hanne K Christensen Ronan Collins John Gommans Ann C Laska George Ntaios Serefnur Ozturk Gillian M Sare Szabolcs Szatmari Yongjun Wang Joanna M Wardlaw Nikola Sprigg Philip M Bath for the ENOS investigators | 2019 | Stroke & Vascular Neurology2019,4,1: | 6 |
| 12 | Accurate positioning of the 24-hour pH monitoring catheter:Agreement between manometry and pH step-up method in two patient positions显示文摘瞄准:在二个不同耐心的位置调查在食道的测压法和 pH 加速方法之间的协议。方法:十八个题目在学习被包括。首先,到更低的食道的括约肌(LES ) 的近似边阶的从鼻子的距离被测量压力计的联盟者。然后一个不同调查者,被使看不见第一研究的结果,用 pH 加速方法测量了一样的距离,与病人在一起正直并且背卧位。对在二种技术之间的同意的一个评价被执行。结果:在背卧位,仅仅一个题目的测量在为正确的放接受的范围(对 LES 3 厘米远侧或近似的 <=) 外面。在正直的位置,在测量的错误在五个题目被认出。Bland-Altman 阴谋表明在大小之间的好同意获得了压力计的联盟者并且由在与在背卧位的病人一起的方法上面的 pH 步。结论:在情况中非压力计的察觉设备的可获得性, pH 加速方法能便于放在背卧位与病人一起监视导管的 24 h pH。如果我们的结果被进一步的研究支持,这应该与怀疑的胃的食道的倒流疾病为题目在临床的实践增加 pH-metry 的使用。 | Mehmet Fatih Can Gokhan Yagci Sadettin Cetiner Mustafa Gulsen Taner Yigit Erkan Ozturk Semih Gorgulu Turgut Tufan | 2007 | World Journal of Gastroenterology2007,13,46: | 6 |
| 13 | Diabetes-induced changes in cardiac voltage-gated ion channels显示文摘Diabetes mellitus affects the heart through various mechanisms such as microvascular defects,metabolic abnormalities,autonomic dysfunction and incompatible immune response.Furthermore,it can also cause functional and structural changes in the myocardium by a disease known as diabetic cardiomyopathy(DCM)in the absence of coronary artery disease.As DCM progresses it causes electrical remodeling of the heart,left ventricular dysfunction and heart failure.Electrophysiological changes in the diabetic heart contribute significantly to the incidence of arrhythmias and sudden cardiac death in diabetes mellitus patients.In recent studies,significant changes in repolarizing K+currents,Na+currents and L-type Ca^(2+)currents along with impaired Ca^(2+ )homeostasis and defective contractile function have been identified in the diabetic heart.In addition,insulin levels and other trophic factors change significantly to maintain the ionic channel expression in diabetic patients.There are many diagnostic tools and management options for DCM,but it is difficult to detect its development and to effectively prevent its progress.In this review,diabetes-associated alterations in voltage-sensitive cardiac ion channels are comprehensively assessed to understand their potential role in the pathophysiology and pathogenesis of DCM. | Nihal Ozturk Serkan Uslu Semir Ozdemir | 2021 | World Journal of Diabetes2021,12,1: | 6 |
| 14 | Ocular disorders in children with spastic subtype of cerebral palsy显示文摘AIM: To document common ocular abnormalities in children with spastic subtype of cerebral palsy (CP) and to find out whether any correlation exists between their occurance and etiologic factors.METHODS: Totally 194 patients with the diagnosis of spastic type CP were enrolled in this retrospective study. Detailed ophthalmic examinations were performed. Demographic data and neuroradiological findings were documented. Kruskal-Wallis, Mann Whitney U, Pearson Chi-square tests and Student's t tests were used in the statistical analysis.RESULTS: The mean age was 64.7±44.2 months on the first ophthalmic examination. Prevalences of diplegia (47.4%) and tetraplegia (36.1%) were found to be higher than the frequency of hemiplegia (16.5% ) in our study population. Etiologic factor was asphyxia in 60.8% of the patients. Abnormal ocular findings were present in 78.9% of the patients. Statistically significant poor vision was detected in tetraplegia group among all the spastic ubtypes of CP (P =0.000). Anisometropia and significant refractive error were found in 14.4% and 70.1% of the patients, respectively. Thirty-six children (18.6% ) had nystagmus and 107 children (55.2% ) had strabismus. Lower gestational age and birth weight were statistically higher in patients with esotropia than exotropia (P=0.009 and P =0.024, respectively). Abnormal morphology of the optic disc was present in 152 eyes (39.2% ). Severe periventricular leukomalacia (PVL) was found in 48 patients and statistically significant poor vision was detected in the presence of PVL (P =0.000).CONCLUSION:Spastic diplegic or tetraplegic CP patients with positive neuroradiological symptoms, younger gestational age and lower birth weight ought to have detailed ophthalmic examinations as early as possible to provide best visual rehabilitation.· | A.Taylan Ozturk A.Tulin Berk Aylin Yaman | 2013 | International Journal of Ophthalmology(English edition)2013,6,2: | 5 |
| 15 | NO Level and Endothelial NO Synthase Gene Polymorphism (Glu298Asp) in the Patients with Coronary Artery Disease from the Turkish Population显示文摘Nitric oxide is synthesized from L-arginine by endothelial nitric oxide synthase encoded by eNOS gene. This study was performed to investigate the relationship between the serum nitric oxide level and eNOS gene polymorphism in the Turkish population with angiographically diagnosed coronary artery disease (63.47 ± 9.10 years old, n=250) and control subjects without any history and/or risk factors of coronary artery disease (60.71 ± 9.14 years old, n=150). Griess assay and PCR-RFLP analysis were used to measure the serum nitric oxide metabolites and genotypes, respectively. It was found that Glu/Glu, Glu/Asp and Asp/ Asp genotype frequencies of the eNOS were 49.3%, 41.3% and 9.3% respectively in the control group, and 45.6%, 41.2% and 13.2% in the patient group. Serum nitric oxide levels were (32.56 ± 17.26) μM in controls and (29.84 ± 11.88) μM in patients. Neither the frequencies of the Glu298Asp genotypes nor the serum nitric oxide levels showed a significant difference between the groups. There was also no correlation between serum nitric oxide levels and the frequencies of the eNOS genotypes. Result showed that the coronary artery disease of the Turkish population seemed to develop without any alterations in eNOS Glu298Asp genotype frequency and the serum nitric oxide level. | Lale AFRASYAPDepartment of Biochemistry Faculty of Health Mugla University Mugla Turkey Guler OZTURK | 2004 | Acta Biochimica et Biophysica Sinica2004,36,10: | 5 |
| 16 | High mobility group protein-mediated transcription requires DNA damage marker γ-H2AX显示文摘 | Indrabahadur Singh Nihan Ozturk Julio Cordero Aditi Mehta Diya Hasan Claudia Cosentino Carlos Sebastian Marcus Kruger Mario Looso Gianni Carraro Saverio Bellusci Werner Seeger Thomas Braun Raul Mostoslavsky Guillermo Barreto | 2015 | Cell Research2015,25,7: | 5 |
| 17 | Predisposing factors and surgical outcome of complicated liver hydatid cysts显示文摘AIM: To evaluate the predisposing factors for peritoneal perforation and intrabiliary rupture and the effects of these complications on surgical outcome in liver hydatid disease.METHODS: A total of 372 patients with liver hydatid cysts who had undergone surgical treatment were evaluated retrospectively. Twenty eight patients with peritoneal perforation, 93 patients with spontaneous intrabiliary perforation, and 251 patients with noncomplicated hydatid cysts were treated in our clinics.RESULTS: When the predisposing factors for complications were evaluated, younger age, superf icial position, and larger cyst dimensions (P < 0.05; range, 0.0010.017) increased peritoneal perforation rates. It was shown that older age increased cyst dimensions, and presence of multiple and bilobar cysts increased intrabiliary rupture rates (P < 0.05; range, 0.0010.028). Partial pericystectomy and drainage was the most frequent surgical procedure in all groups (71.6%). The incidence of postoperative complications in the peritoneal perforated group, in the intrabiliary ruptured group, and in the noncomplicated group was 25%, 16.1% and 5.5%, respectively. When compared, complication rates were significantly different (P = 0.002). When length of hospital stay was compared, there was no signif icant difference between the groups (P > 0.05). The overall recurrence rate was 3.8% (14 patients), but there was not any statistical difference among the patient groups (P = 0.13). The early postoperative mortality rate was 1.1%. CONCLUSION: In peritoneally perforated and intrabiliary ruptured cases, the most important steps are irrigation of the peritoneal cavity and clearance of the cystic material from the biliary tree. | Alper Akcan Erdogan Sozuer Hizir Akyildiz Zeki Yilmaz Ahmet Ozturk Altay Atalay | 2010 | World Journal of Gastroenterology2010,16,24: | 4 |
| 18 | Comparison of autofluorescence and optical coherence tomography findings in acute and chronic central serous chorioretinopathy显示文摘AIM:To discuss and compare the fundus autofluorescence(FAF)and optical coherence tomography(OCT)in acute or chronic central serous chorioretinopathy(CSCR).METHODS:Medical records of 100 cases of CSCR were reviewed.Acute and chronic cases were evaluated according to the duration of decreased visual acuity,serous retinal detachment(RD)and focal leakage on fluorescein angiography(FA).Chi-square test was used for statistical analysis.RESULTS:Forty cases had acute and 60 cases had chronic CSCR.FAF showed focal hypo-autofluorescence in 34(85%)and iso-autofluorescence in 6(15%)of acute cases and hypo-autofluorescence in 51(85%),hyperautofluorescence in 6(10%)and iso-autofluorescence in3(5%)of chronic cases.OCT showed serous RD with distinct borders correlated with FAF findings(hypoautofluorescence)in all acute CSCR cases.In chronic CSCR group,OCT showed serous RD with indistinct borders correlated with FAF findings.The differences between the OCT and FAF findings of the two groups were significant(P=0.000).CONCLUSION:OCT and FAF findings can support the clinical observations in differential diagnosis of acute and chronic CSCR and help clinicians to evaluate retinal pigment epithelium,outer segments of photoreceptors and the components of serous RD. | Mehmet Yasin Teke Ufuk Elgin Pinar Nalcacioglu-Yuksekkaya Emine Sen Pinar Ozdal Faruk Ozturk | 2014 | International Journal of Ophthalmology(English edition)2014,7,2: | 4 |
| 19 | Strain Hardening and Strain Rate Sensitivity Behaviors of Advanced High Strength Steels显示文摘The mechanical properties of commercial dual phase (DP), transformation induced plasticity (TRIP), and high strength low alloy (HSLA-340) steel sheets are investigated and compared at various strain rates ranging from 0.001 7to 0.17 s-1 at ambient temperature.TRIP steel outperforms the other two materials , having comparable ductility and twice as large strength relative to DP steel.TRIP has larger strength and much larger ductility than HSLA-340.The exceuent ductility of TRIP800is due to its high strain hardening capability , which promotes stable plastic deformation.It is observed that the strain hardening rate in TRIP800does not decrease to zero at failure , as common in most materials in which failure is preceded by necking. | F Ozturk A Polat S Toros R C Picu | 2013 | Journal of Iron and Steel Research(International)2013,20,6: | 4 |
| 20 | Skin disorders in peritoneal dialysis patients:An underdiagnosed subject显示文摘AIM: To examine all skin changes in peritoneal dialysis(PD) patients followed up in our unit.METHODS: Patients on PD program for at least three months without any known chronic skin disease were included in the study. Patients with already diagnosed skin disease, those who have systemic diseases that may cause skin lesions, patients with malignancies and those who did not give informed consent were excluded from the study. All patients were examined by the same predetermined dermatologist with all findings recorded. The demographic, clinical and laboratory data including measures of dialysis adequacy of patients were recorded also. Statistical Package for Social Sciences(SPSS) for Windows 16.0 standard version was used for statistical analysis.RESULTS: Among the patients followed up in our PD unit, those without exclusion criteria who gave informed consent, 38 patients were included in the study with male/female ratio and mean age of 26/12 and 50.3 ± 13.7 years, respectively. The duration of CKD was 7.86 ± 4.16 years and the mean PD duration was 47.1 ± 29.6 mo. Primary kidney disease was diabetic nephropathy in 11, nephrosclerosis in six, uropathologies in four, chronic glomerulonephritis in three, chronic pyelonephritis in three, autosomal dominant polycystic kidney disease in three patients while cause was unknown in eight patients. All patients except for one patient had at least one skin lesion. Loss of lunula, onychomycosis and tinea pedis are the most frequent skin disorders recorded in the study group. Diabetic patients had tinea pedis more frequently(P = 0.045). No relationship of skin findings was detected with primary renal diseases, comorbidities and medications that the patients were using.CONCLUSION: Skin abnormalities are common in in PD patients. The most frequent skin pathologies are onychomycosis and tinea pedis which must not be overlooked. | Meltem Gursu Sami Uzun Derya Topcuoglu Leyli Kadriye Koc Lamiye Yucel Abdullah Sumnu Egemen Cebeci Oktay Ozkan Ahmet Behlul Leyla Koc Savas Ozturk Rumeyza Kazancioglu | 2016 | World Journal of Nephrology2016,5,4: | 3 |