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| 1 | Predictive value of C-reactive protein/albumin ratio in acute pancreatitis显示文摘BACKGROUND:Serum C-reactive protein(CRP) increases and albumin decreases in patients with inflammation and infection.However,their role in patients with acute pancreatitis is not clear.The present study was to investigate the predictive significance of the CRP/albumin ratio for the prognosis and mortality in acute pancreatitis patients.METHODS:This study was performed retrospectively with 192 acute pancreatitis patients between January 2002 and June 2015.Ranson scores,Atlanta classification and CRP/albumin ratios of the patients were calculated.RESULTS:The CRP/albumin ratio was higher in deceased patients compared to survivors.The CRP/albumin ratio was positively correlated with Ranson score and Atlanta classification in particular and with important prognostic markers such as hospitalization time,CRP and erythrocyte sedimentation rate.In addition to the CRP/albumin ratio,necrotizing pancreatitis type,moderately severe and severe Atlanta classification,and total Ranson score were independent risk factors of mortality.It was found that an increase of 1 unit in the CRP/albumin ratio resulted in an increase of 1.52 times in mortality risk.A prediction value about CRP/albumin ratio >16.28 was found to be a significant marker in predicting mortality with 92.1% sensitivity and 58.0% specificity.It was seen that Ranson and Atlanta classification were higher in patients with CRP/albumin ratio >16.28 compared with those with CRP/albumin ratio ≤16.28.Patients with CRP/albumin ratio >16.28 had a 19.3 times higher chance of death.CONCLUSION:The CRP/albumin ratio is a novel but promising,easy-to-measure,repeatable,non-invasive inflammationbased prognostic score in acute pancreatitis. | Mustafa Kaplan Ihsan Ates Muhammed Yener Akpinar Mahmut Yuksel Ufuk Baris Kuzu Sabite Kacar Orhan Coskun Ertugrul Kayacetin | 2017 | Hepatobiliary & Pancreatic Diseases International2017，16，4： | 53 |
| 2 | Current status of diagnosis and treatment of hepatic echinococcosis显示文摘Echinococcus granulosus(E.granulosus) and Echinococcus multilocularis(E.multilocularis) infections are the most common parasitic diseases that affect the liver.The disease course is typically slow and the patients tend to remain asymptomatic for many years.Often the diagnosis is incidental.Right upper quadrant abdominal pain,hepatitis,cholangitis,and anaphylaxis due to dissemination of the cyst are the main presenting symptoms.Ultrasonography is important in diagnosis.The World Health Organization classification,based on ultrasonographic findings,is used for staging of the disease and treatment selection.In addition to the imaging methods,immunological investigations are used to support the diagnosis.The available treatment options for E.granulosus infection include open surgery,percutaneous interventions,and pharmacotherapy.Aggressive surgery is the first-choice treatment for E.multilocularis infection,while pharmacotherapy is used as an adjunct to surgery.Due to a paucity of clinical studies,empirical evidence on the treatment of E.granulosus and E.multilocularis infections is largely lacking;there are no prominent and widely accepted clinical algorithms yet.In this article,we review the diagnosis and treatment of E.granulosus and E.multilocularis infections in the light of recent evidence. | Memmet Mihmanli Ufuk Oguz Idiz Cemal Kaya Uygar Demir Ozgur Bostanci Sinan Omeroglu Emre Bozkurt | 2016 | World Journal of Hepatology2016，8，28： | 50 |
| 3 | The incidence of Mirizzi syndrome in patients undergoing endoscopic retrograde cholangiopancreatography显示文摘BACKGROUND:Mirizzi syndrome is a rare complication of cholelithiasis,characterized by the narrowing of the common hepatic duct as a result of mechanical compression and/or inflammation due to biliary calculus impacted in the infundibula of the gallbladder or in the cystic duct.In this study,we aimed to describe the clinical presentations,investigations,operative details,and complications of seven patients who underwent endoscopic retrograde cholangiopancreatography and were finally diagnosed with Mirizzi syndrome in our center. METHOD:We performed a retrospective analysis of the records of 7 patients with Mirizzi syndrome who underwent endoscopic retrograde cholangiopancreatography. RESULTS:The incidence of Mirizzi syndrome was 1.07% of 656 patients given endoscopic retrograde cholangiopan- creatography.Ultrasonography was able to diagnose one case.Endoscopic retrograde cholangiopancreatography suggested the diagnosis in five cases and helped further in the management of these patients.Four patients had cholecystectomy and T-tube placement,and two had cholecystectomy and choledochoduodenostomy.One patient with typeⅠMirizzi syndrome according to the Csendes classification successfully underwent laparoscopic cholecystectomy. CONCLUSIONS:In the study,the incidence of Mirizzi syndrome was 1.07%of patients who underwent endoscopic retrograde cholangiopancreatography. Preoperative diagnosis of Mirizzi syndrome by endoscopicretrograde cholangiopancreatography is important to prevent complications. | Nadir Yonetci Ufuk Kutluana Mustafa Yilmaz Ugur Sungurtekin Koray Tekin | 2008 | Hepatobiliary & Pancreatic Diseases International2008，7，5： | 30 |
| 4 | Recent developments and innovations in gastric cancer显示文摘Gastric cancer has an important place in the worldwide incidence of cancer and cancer-related deaths. It can metastasize to the lymph nodes in the early stages, and lymph node metastasis is an important prognostic factor. Surgery is a very important part of gastric cancer treatment. A D2 lymphadenectomy is the standard surgical treatment for c T1N+ and T2-T4 cancers, which are potentially curable. Recently, the TNM classification system was reorganized, and the margins for gastrectomy and lymphadenectomy were revised. Endoscopic, laparoscopic and robotic treatments of gastric cancer have progressed rapidly with development of surgical instruments and techniques, especially in Eastern countries. Different endoscopic resection techniques have been identified, and these can be divided into two main categories: endoscopic mucosal resection and endoscopic submucosal dissection. Minimally invasive surgery has been reported to be safe and effective for early gastric cancer, and it can be successfully applied to advanced gastric cancer with increasing experience. Cytoreductive surgery and hypertherm?c intraper?toneal chemotherapy were developed as a combined treatment modality from the results of experimental and clinical studies. Also, hyperthermia increases the antitumor activity and penetration of chemotherapeutics. Trastuzumab which is a monoclonal antibody interacts with human epidermal growth factor(HER) 2 and is related to gastric carcinoma. The anti-tumor mechanism of trastuzumab is not clearly known, but mechanisms such as interruption of the HER2-mediated cell signaling pathways and cell cycle progression have been reported previously. H. pylori is involved in 90% of all gastric malignancies and Japanese guidelines strongly recommend that all H. pylori infections should be eradicated regardless of the associated disease. In this review, we present innovations discussed in recent studies. | Mehmet Mihmanli Enver Ilhan Ufuk Oguz Idiz Ali Alemdar Uygar Demir | 2016 | World Journal of Gastroenterology2016，22，17： | 29 |
| 5 | Relationship between intestinal microbiota and colorectal cancer显示文摘The human gastrointestinal tract hosts a complexand vast microbial community with up to 1011-1012 microorganisms colonizing the colon. The gut microbiota has a serious effect on homeostasis and pathogenesis through a number of mechanisms. In recent years, the relationship between the intestinal microbiota and sporadic colorectal cancer has attracted much scientific interest. Mechanisms underlying colonic carcinogenesis include the conversion of procarcinogenic diet-related factors to carcinogens and the stimulation of procarcinogenic signaling pathways in luminal epithelial cells. Understanding each of these mechanisms will facilitate future studies, leading to the development of novel strategies for the diagnosis, treatment, and prevention of colorectal cancer. In this review, we discuss the relationship between colorectal cancer and the intestinal microbiota. | Gokhan Cipe Ufuk Oguz Idiz Deniz Firat Huseyin Bektasoglu | 2015 | World Journal of Gastrointestinal Oncology2015，7，10： | 7 |
| 6 | Cerebral sinus thrombosis in patients with inflammatory bowel disease: A case report显示文摘Inflammatory bowel disease (IBD) is an idiopathic inflammatory disease of the gastrointestinal tract. The pathophysiology of IBD is probably the result of the complex interaction of genetic susceptibility and environmental influences. There is a well-known risk of thrombosis in patients with IBD. We present the case of a 53-year-old man with ulcerative colitis, who spontaneously developed intracranial sinus thrombosis that was treated with low molecular weight heparin. Literature was searched to assess the frequency and characteristics of cerebral sinus thrombosis in IBD and the role of certain etiopathological factors in such thrombotic patients. | Hasan Umit Talip Asil Yahya Celik Ahmet Tezel Gulbin Dokmeci Nermin Tuncbilek Ufuk Utku Ali Riza Soylu | 2005 | World Journal of Gastroenterology2005，11，34： | 6 |
| 7 | 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 |
| 8 | Liver immunology and herbal treatment显示文摘Beyond the metabolic functions, the liver recently has been defined as an organ of immune system(IS), which have central regulatory role for innate and adaptive immunity. The liver keeps a delicate balance between hepatic screening of pathogenic antigens and immune tolerance to self-antigens. Herbal treatments with immunological effects have potential to alter this hepatic immune balance towards either therapeutic side or diseases side by inducing liver injury via hepatotoxicity or initiation of autoimmune diseases. Most commonly known herbal treatments, which have therapeutic effect on liver and IS, have proven via in vitro, in vivo, and/or clinical studies were summarized in this review. | Yasemin H Balaban Ceylan Aka Ufuk Koca-Caliskan | 2017 | World Journal of Hepatology2017，9，17： | 3 |
| 9 | 散瞳对人工晶状体屈光度数计算的影响(英文)显示文摘目的:研究散瞳对人工晶状体屈光度数计算的影响。方法:前瞻性研究。选取梅尔辛大学医学院诊断为白内障需接受白内障超声乳化联合人工晶状体植入术的患者45例52眼作为研究对象。散瞳前后,所有患者均接受术前角膜地形图测量,自动角膜曲率测量和生物特征测定。结果:与散瞳前数值相比,散瞳后,自动角膜曲率计测得的水平曲率(Kh)明显更大,且生物超声波测定的前房深度明显更深。使用散瞳后测量计算得出的屈光度数植入人工晶状体屈光正常的几率明显较高。比较正视眼和屈光不正眼发现正视眼的前房深度明显更深。结论:在人工晶状体屈光度计算中,角膜曲率测量与生物特征测量比公式计算更重要。如果采用接触技术进行生物超声波测定,须注意避免角膜压迫。在检测时,注意前房深度应随访,且可通过利用人工晶状体屈光度计算中的最大值将误差最小化。 | Gülsüm Egemen Erkayhan Ufuk Adigüzel | 2016 | 国际眼科杂志2016，16，8： | 3 |
| 10 | Influence of preoperative coronary collateral circulation on in-hospital mortality in patients undergoing coronary artery bypass graft surgery with intra-aortic balloon pump support显示文摘 | Hasan Gungor Cemil Zencir Abraham Samuel Babu Cagdas Akgullu Ufuk Eryilmaz All Zorlu Mithat Selvi Sevil Onay Tunay Kurtoglu | 2014 | Chinese Medical Journal2014，，17： | 3 |
| 11 | Comparison of total/active ghrelin levels in primary open angle glaucoma,pseudoexfoliation glaucoma and pseudoexfoliation syndrome显示文摘AIM:To investigate the levels of ghrelin(Gh),acylated ghrelin(AGh) and AGh/Gh ratio in the humor aqueous(HA) of cases with pseudoexfoliation syndrome(PXS),pseudoexfoliation glaucoma(PXG),primary open angle glaucoma(POAG) and to compare these with control subjects.METHODS:A prospective examination was made of the total Gh,and AGh levels in HA of 67 patients undergoing cataract surgery.Patients were divided into 4 groups.HA samples were aspirated at the beginning of the surgery,stored at -70℃.Gh and AGh quantification was performed with ELISA kits and the AGh/total-Gh ratios were calculated.ANOVA,Kruskal-Wallis,Chi-square and post-hoc tests were used for statistical analysis.RESULTS:Total Gh levels in HA were 189.2±45.6 pg/mL in the control group,199.2±32.9 pg/mL in PXS,180.6±20.9 pg/mL in PXG and 176.8±21.4 pg/mL in POAG groups(P>0.05).AGh levels in HA were 23.09±5.01 pg/mL in the control group,24.13±5.22 pg/mL in PXS,22.29±1.55 pg/m L in PXG and 19.69±2.93 pg/mL in POAG groups(P>0.05).The ratio of AGh/Gh was 10.3%±2.34% in the control group,13.03%±2.58% in PXS,12.3%±1.54% in PXG and 11.79%±1.41% in POAG groups(P=0.044).The difference between the PXS and control groups was significant(P=0.03).CONCLUSION:In spite of statistically insignificant results,the HA total Gh levels were lower than those of the control subjects but not parallel with the AGh levels in glaucoma patients.The relative increase in the AGh/Gh ratio in glaucoma cases supports the view that proportional increases of AGh might play a role in the pathogenesis of glaucoma. | Numan Eraslan Ufuk Elgin Emine Sen Aytul Kilic Pelin Yilmazbas | 2018 | International Journal of Ophthalmology(English edition)2018，11，5： | 3 |
| 12 | Development of an aftershock occurrence model calibrated for Turkey and the resulting likelihoods显示文摘This paper presents the calibration of Omori’s aftershock occurrence rate model for Turkey and the resulting likelihoods. Aftershock occurrence rate models are used for estimating the probability of an aftershock that exceeds a specific magnitude threshold within a time interval after the mainshock. Critical decisions on the post-earthquake safety of structures directly depend on the aftershock hazard estimated using the occurrence model. It is customary to calibrate models in a region-specific manner. These models depend on rate parameters(a, b, c and p) related to the seismicity characteristics of the investigated region. In this study, the available well-recorded aftershock sequences for a set of Mw ≥ 5.9 mainshock events that were observed in Turkey until 2012 are considered to develop the aftershock occurrence model. Mean estimates of the model parameters identified for Turkey are a =-1.90, b = 1.11, c = 0.05 and p = 1.20. Based on the developed model, aftershock likelihoods are computed for a range of different time intervals and mainshock magnitudes. Also, the sensitivity of aftershock probabilities to the model parameters is investigated. Aftershock occurrence probabilities estimated using the model are expected to be useful for post-earthquake safety evaluations in Turkey. | Ziya Muderrisoglu Ufuk Yazgan | 2020 | Earthquake Engineering and Engineering Vibration2020，19，1： | 3 |
| 13 | Evaluation of variations in sinonasal region with computed tomography显示文摘AIM: To investigate the frequency of anatomical variations in sinonasal region and association of these variations with mucosal diseases. METHODS: The study included 400 cases(191 female and 209 male) who were considered to have preliminary diagnoses of sinonasal pathology and who had paranasal sinus computed tomography(CT) examination in axial plane. Reformatted CT images were studied in all planes.RESULTS: Age range of the patients was 20-83(mean 40.26 ± 14.85). Most commonly detected anatomical variation was Agger nasi cell(74.8%). There was a significant association between clinoid process pneumatization and protrusion of internal carotid arteries and optic nerves into sphenoid sinus(P < 0.001). Besides,the relationships between pterygoid process pneumatization and protrusion of vidian nerve into sphenoid sinus,and between pneumatization of large sphenoid wing and protrusion of maxillary nerves into sphenoid sinus were also significant(P < 0.001). Uncinate bulla and giant ethmoid bulla were found to be significantly associated with sinonasal mucosal diseases(P = 0.004 and P = 0.002,respectively).CONCLUSION: Sinonasal region has a great number of variations,and some of them have been determined to be associated with sinonasal mucosal disease. It is necessary to know that some of these variations are associated with protrusion of significant structures such as carotid artery or optic nerve into the sinus and care should be observed in surgeries on patients carrying these variations. | Ufuk Dasar Erkan Gokce | 2016 | World Journal of Radiology2016，8，1： | 2 |
| 14 | Drug resistance in targeted cancer therapies with RAF inhibitors显示文摘Hyperactive RAS/RAF/MEK/ERK signaling has a well-defined role in cancer biology.Targeting this pathway results in complete or partial regression of most cancers.In recent years,cancer genomic studies have revealed that genetic alterations that aberrantly activate the RAS/RAF/MEK/ERK signaling mainly occur on RAF or upstream,which motivated the extensive development of RAF inhibitors for cancer therapy.Currently,the first-generation RAF inhibitors have been approved for treating late-stage cancers with BRAF(V600E)mutations.Although these inhibitors have achieved promising outcomes in clinical treatments,their efficacy is abolished by quick-rising drug resistance.Moreover,cancers with hyperactive RAS exhibit intrinsic resistance to these drugs.To resolve these problems,the second-generation RAF inhibitors have been designed and are undergoing clinical evaluations.Here,we summarize the recent findings from mechanistic studies on RAF inhibitor resistance and discuss the critical issues in the development of next-generation RAF inhibitors with better therapeutic index,which may provide insights for improving targeted cancer therapy with RAF inhibitors. | Ufuk Degirmenci Jiajun Yap Yuen Rong MSim Shiru Qin Jiancheng Hu | 2021 | Cancer Drug Resistance2021，4，3： | 2 |
| 15 | Conjunctival impression cytology in non-proliferative and proliferative diabetic retinopathy显示文摘AIM:To examine the integrity of the ocular surfaces of subjects with and without diabetes with no conjunctival and dry eye signs and symptoms and compare conjunctival impression cytology findings in diabetics with non-proliferative and proliferative diabetic retinopathy.METHODS:Conjunctival impression cytology was performed on 43 eyes of 43 subjects with nonproliferative diabetic retinopathy(NPDR),42 eyes of 42subjects with proliferative diabetic retinopathy(PDR),and30 eyes of 30 control subjects.Impression cytology specimens of each group were graded and scored in the range 0-3 according to Nelson's method.RESULTS:There were 45(52.9%)women and 40(47.1%)men.The mean age of the patients was 59.6±9.3y(range,43-76y)in NPDR group and 58.0±8.8y(range,41-85y)in PDR group.Cases with NPDR and PDR showed statistically significant higher impression cytology scores than control group(P<0.05).There was no difference between the NPDR and PDR patients for impression cytology grading scores.CONCLUSION:It is determined that impression cytology grades are altered in patients with NPDR and PDR.Consequently,we suggest that there might be an association between the impression cytology grading scores and the severity of diabetic | Mehmet Citirik Nilufer Berker Hulya Haksever Ufuk Elgin Huseyin Ustun | 2014 | International Journal of Ophthalmology(English edition)2014，7，2： | 2 |
| 16 | Radiological evaluation of patellofemoral instability and possible causes of assessment errors显示文摘Patellofemoral instability(PI)is the disruption of the patella’s relationship with the trochlear groove as a result of abnormal movement of the patella.To identify the presence of PI,conventional radiographs(anteroposterior,lateral,and axial or skyline views),magnetic resonance imaging,and computed tomography are used.In this study,we examined four main instability factors:Trochlear dysplasia,patella alta,tibial tuberosity–trochlear groove distance,and patellar tilt.We also briefly review some of the other assessment methods used in the quantitative and qualitative assessment of the patellofemoral joint,such as patellar size and shape,lateral trochlear inclination,trochlear depth,trochlear angle,and sulcus angle,in cases of PI.In addition,we reviewed the evaluation of coronal alignment,femoral anteversion,and tibial torsion.Possible causes of error that can be made when evaluating these factors are examined.PI is a multi-factorial problem.Many problems affecting bone structure and muscles morphologically and functionally can cause this condition.It is necessary to understand normal anatomy and biomechanics to make more accurate radiological measurements and to identify causes.Knowing the possible causes of measurement errors that may occur during radiological measurements and avoiding these pitfalls can provide a more reliable road map for treatment.This determines whether the disease will be treated medically and with rehabilitation or surgery without causing further complications. | Tugrul Ormeci Ismail Turkten Bayram Ufuk Sakul | 2022 | World Journal of Methodology2022，12，2： | 2 |
| 17 | Acute effects of static stretching on peak and end-range hamstring-to-quadriceps functional ratios显示文摘AIM: To evaluate if static stretching influences peak and end-range functional hamstring-to-quadriceps(H/Q) strength ratios in elite women athletes. METHODS: Eleven healthy female athletes in an elite competitive level participated to the study. All the participants fulfilled the static stretching or non-stretching(control) intervention protocol in a randomized design on different days. Two static unassisted stretching exercises, one in standing and one in sitting position, were used to stretch both the hamstring and quadriceps muscles during these protocols. The total time for the static stretching was 6 ± 1 min. The isokinetic peak torque measurements for the hamstring and quadriceps muscles in eccentric and concentric modes and the calculations for the functional H/Q strength ratios at angular velocities of 60°/s and 180°/s were made before(pre) and after(post) the control or stretching intervention. The strength measurements and functional strength ratio calculations were based during the entire- and end-range of knee extension.RESULTS: The pre-test scores for quadriceps and hamstring peak torque and end range values were not significantly different between the groups(P > 0.05). Subsequently, although the control group did notexhibit significant changes in quadriceps and hamstring muscle strength(P > 0.05), static stretching decreased eccentric and concentric quadriceps muscle strength at both the 60°/s and 180°/s test speeds(P < 0.01). Similarly, static stretching also decreased eccentric and concentric hamstring muscle strength at both the 60°/s and 180°/s test speeds(P < 0.01). On the other hand, when the functional H/Q strength ratios were taken into consideration, the pre-intervention values were not significant different between the groups both during the entire and end range of knee extension(P > 0.05). Furthermore, the functional H/Q strength ratios exhibited no significant alterations during the entire and end ranges of knee extension both in the static stretching or the control intervention(P > 0.05). CONCLUSION: According to our results, static stretching routine does not influence functional H/Q ratio. Athletes can confidently perform static stretching during their warm-up routines. | Ufuk Sekir Ramiz Arabaci Bedrettin Akova | 2015 | World Journal of Orthopedics2015，6，9： | 2 |
| 18 | Analysis of glomerular filtration rate, serum cystatin C levels, and renal resistive index values in cirrhosis patients显示文摘 | Yucel Ustundag Ufuk Samsar Sereften Acikgoz Mehmet Cabuk Sibel Kiran Eyup Kulah Selim Aydemir | 2007 | Clinical Chemical Laboratory Medicine2007，，7： | 2 |
| 19 | Analysis of glomerular filtration rate, serum cystatin C levels, and renal resistive index values in cirrhosis patients显示文摘 | Yucel Ustundag Ufuk Samsar Sereften Acikgoz Mehmet Cabuk Sibel Kiran Eyup Kulah Selim Aydemir | 2007 | Clinical Chemical Laboratory Medicine2007，，7： | 1 |
| 20 | Deformation of plasma sprayed thermal barrier coatings 显示文摘 | Ufuk Senturk Lima R S | 2000 | Journal of Engineering for Gas Turbines and Power2000，122，： | 1 |
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