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| 1 | Bouveret's syndrome complicated by a distal gallstone ileus显示文摘AIM: Gastric outlet obstruction caused by duodenal impaction of a large gallstone migrated through a cholecystoduodenal fistula has been referred as Bouveret's syndrome. Endoscopic lithotomy is the first-step treatment,however, surgery is indicated in case of failure or complication during this procedure.METHODS: We report herein an 84-year-old woman presenting with features of gastric outlet obstruction due to impacted gallstone. She underwent an endoscopic retrieval which was unsuccessful and was further complicated by distal gallstone ileus. Physical examination was irrelevant.RESULTS: Endoscopy revealed multiple erosions around the cardia, a large stone in the second part of the duodenum causing complete obstruction, and wide ulceration in the duodenal wall where the stone was impacted. Several attempts of endoscopic extraction by using foreign body forceps failed and surgical intervention was mandatory. Preoperative ultrasound evidenced pneumobilia whilst computerized tomography showed a large stone, 5 cm×4 cm×3 cm, loggingat the proximal jejunum and another one, 2.5 cm×2 cm×2 cm,in the duodenal bulb causing a closed-loop syndrome. She underwent laparotomy and the jejunal stone was removed by enterotomy. Another stone reported as located in the duodenum preoperatively was found to be present in the gallbladder by intraoperative ultrasound. Therefore,cholecystoduodenal fistula was broken down, the stone was retrieved and cholecystectomy with duodenal repair was carried out. She was discharged after an uneventful postoperative course.CONCLUSION: As the simplest and the least morbid procedure, endoscopic stone retrieval should be attempted in the treatment of patients with Bouveret's syndrome.When it fails, surgical lithotomy consisting of simple enterotomy may solve the problem. Although cholecystectomy and cholecystoduodenal fistula breakdown is unnecessary in every case, conditions may urge the surgeon to perform such operations even though they carry high morbidity and mortality. | Rasim Gencosmanoglu Resit Inceoglu Caglar Baysal Sertac Akansel Nurdan Tozun | 2003 | World Journal of Gastroenterology2003，9，12： | 9 |
| 2 | Gastric polypoid lesions:Analysis of 150 endoscopic polypectomy specimens from 91 patients显示文摘AIM: To analyze gastric polypoid lesions in our patientpopulation with respect to histopathologic features and demographic, clinical, and endoscopic characteristics of patients.METHODS: Clinical records and histopathologic reports of patients with gastric polypoid lesions were analyzed retrospectively. All lesions had been totally removed by either endoscopic polypectomy or hot biopsy forceps. The histopathologic slides were re-evaluated by the same histopathologist.RESULTS: One-hundred and fifty gastric polypoid lesions were identified in 91 patients. There were 53 (58%) women and 38 (42%) men with a median age of 53 (range, 31 to 82) years. The most frequent presenting symptom was dyspepsia that was observed in 35 (38.5%) patients.Symptoms were mostly related to various associated gastric abnormalities such as chronic gastritis or H pylori infection rather than polypoid lesion itself. Polypoid lesions were commonly located in the antrum followed by cardia. Out of 150 lesions, 80 (53%) had the largest dimensions less than or equal to 5 mm and only 7 were pedunculated. The frequencies of hyperplastic polyps, foveolar hyperplasia, and fundic gland polyps were 46%, 18%, and 14% respectively.We also detected gastritis varioliformis in 12 specimens,lymphoid follicles in 9, 4 adenomatous polyps in 4, polypoid lesions with edematous mucosa in 4, inflammatory polyps in 3, and carcinoid tumor in 1. Adenomatous changes were observed within two hyperplastic polyps and low grade dysplasia in one adenoma. Histopathologic evaluation of the surrounding gastric mucosa demonstrated chronic gastritis in 72 (79%) patients and H pylori infection in 45 (49%).CONCLUSION: Hyperplastic polyps are the most frequently encountered subtype of gastric polypoid lesions. They are usually associated with chronic gastritis or H pylori gastritis. Contrary to the previous belief, they may harbour adenomatous changes or dysplastic foci.Therefore, endoscopic polypectomy seems as a safe and fast procedure for both diagnosis and treatment of gastric polypoid lesions at the same session. In addition,edematous mucosa may appear misleadingly as a polypoid lesion in some instances and it can be ruled out only by histopathologic examination. | Rasim Gencosmanoglu Ebru Sen-Oran Ozlem Kurtkaya-Yapicier Erol Avsar Aydin Sav Nurdan Tozun | 2003 | World Journal of Gastroenterology2003，9，10： | 8 |
| 3 | Petrogenesis of the late Cretaceous Turnagol intrusion in the eastern Pontides:Implications for magma genesis in the arc setting显示文摘A series of Cretaceous plutons is present in the eastern Pontides of northeastern Turkey.The Turnagl intrusion is the least studied and,thus,the least understood plutons in the orogen.This intrusion consists of hornblende-biotite granodiorites emplaced at 78 Ma based on LA-ICP-MS U-Pb zircon dating.It is of sub- alkaline affinity,belongs to the medium- to high-K calc-alkaline series,and displays features typical of Itype granites.The rocks of the intrusion are enriched in large-ion lithophile elements and light rare earthelements with negative Eu anomalies(Eu/Eu*= 0.69-0.82),but are deficient in high-field-strength elements.They have a small range of (87Sr/86Sr)i(0.7060-0.7063),εNdi(-2.6 to -3.1),and δ18O(+8.1 to +9.1) values.Their Pb isotopic ratios are 206Pb/204Pb = 18.63-18.65,207Pb/204Pb = 15.62-15.63,and 208Pb/204Pb = 38.53-38.55.The fractionation of plagioclase,hornblende,and Fe-Ti oxides had key functions in the evolution of the Tumagl intrusion.The crystallization temperatures of the melts ranged from 758 to 885℃ as determined by zircon and apatite saturation thermometry.All these characteristics,combined with the low values of K2O/Na2O and(Na2O + K2O)/(FeOt+MgO + TiO2),as well as the high values of (CaO + FeOt + MgO + TiO2).suggest an origin by dehydration melting from a metabasaltic lowercrustal source. | Abdullah Kaygusuz Ferkan Sipahi Nurdane Ilbeyli Mehmet Arslan Bin Chen Emre Aydincakir | 2013 | Geoscience Frontiers2013，4，4： | 4 |
| 4 | Biological sludge conditioning by Fenton’s reagent显示文摘 | Nurdan Buyukkamaci | 2003 | Process Biochemistry2003，，11： | 4 |
| 5 | Therapeutic effect of caffeic acid phenethyl ester on cerulein-induced acute pancreatitis显示文摘AIM: To evaluate the therapeutic role of caffeic acid phenethyl ester (CAPE) in a rat model of ceruleaninduced acute pancreatitis (AP).METHODS: Seventy male Wistar albino rats were divided into seven groups. Acute edematous pancreatitis was induced by subcutaneous cerulein injection (20 μg/kg) four times at 1-h intervals. CAPE (30 mg/kg) was given by subcutaneous injection at the beginning (CAPE 1 group) and 12 h after the last cerulein injection (CAPE 2 group). Serum amylase, lipase, white blood cell count, and tumor necrosis factor (TNF)-α levels were measured, and pancreatic histopathology was assessed. RESULTS: In the AP group, amylase and lipase levels were found to be elevated and the histopathological evaluation showed massive edema and inflammation of the pancreas, with less fatty necrosis when compared with sham and control groups. Amylase and lipase levels and edema formation decreased signif icantly in the CAPE therapy groups (P < 0001); especially in the CAPE 2 group, edema was improved nearly completely (P = 0001). Inflammation and fatty necrosis were partially recovered by CAPE treatment. The pathologicalresults and amylase level in the placebo groups were similar to those in the AP group. White blood cell count and TNF-α concentration was nearly the same in the CAPE and placebo groups.CONCLUSION: CAPE may be useful agent in treatment of AP but more experimental and clinical studies are needed to support our observation of benef icial effects of CAPE before clinical usage of this agent. | Mehmet Buyukberber M Cemil Savas Cahit Bagci Mehmet Koruk Murat T Gulsen Ediz Tutar Tugba Bilgic Nurdan Ceylan | 2009 | World Journal of Gastroenterology2009，15，41： | 4 |
| 6 | Gastroesophageal reflux in asymptomatic obese subjects:An esophageal impedance-pH study显示文摘AIM:To investigate the relationship between reflux and body mass index(BMI) in the asymptomatic obese population using the impedance-p H technique.METHODS:Gastroesophageal reflux is frequent in the obese population.However,the relationship between acid reflux and BMI in asymptomatic obese people is unclear.Forty-six obese(BMI > 25 kg/m2) people were enrolled in this prospective study.We evaluated the demographic findings and 24-h impedance p H values of the whole group.Gas,acid(p H < 4),weak acid(p H = 4-7) and weak alkaline(p H ≥ 7) reflux parameters were analyzed.RESULTS:The mean age of patients was 49.47±12.24 years,and half of them were men.The mean BMI was 30.64±3.95 kg/m2(25.14-45.58 kg/m2).BMI of 23 was over 30 kg/m2.Seventeen patients had a comorbidity(hypertension,diabetes mellitus,or ischemic heart disease).Endoscopic examination revealed esophagitis in 13 of the 28 subjects(10Grade A,3 Grade B).The subjects were divided into two groups according to BMI(<30 and>30 kg/m2).Demographic and endoscopic findings,and impedance results were similar in these two groups.However,there was a positive correlation between BMI and total and supine p H<4 episodes(P=0.002,r=0.414;P=0.000,r=0.542),p H<4 reflux time(P=0.015,r=0.319;P=0.003,r=0.403),and De Meester score(P=0.012,r=0.333).CONCLUSION:Acid reflux is correlated with BMI in asymptomatic obese individuals. | Filiz Akyüz Ahmet Uyanikoglu Fatih Ermis Serpil Arici ümit Akyüz Divison of Gastroenterology Department of Internal Medicine Faculty of Medicine Yeditepe University Bülent Baran Binnur Pinarbasi Nurdan Gul | 2015 | World Journal of Gastroenterology2015，21，10： | 3 |
| 7 | Liver fibrosis: consensus recommendations of the Asian Pacific Association for the Study of the Liver (APASL)显示文摘 | Gamal Shiha Shiv Kumar Sarin Alaa Eldin Ibrahim Masao Omata Ashish Kumar Laurentius A. Lesmana Nancy Leung Nurdan Tozun Saeed Hamid Wasim Jafri Hitoshi Maruyama Pierre Bedossa Massimo Pinzani Yogesh Chawla Gamal Esmat Wahed Doss Taher Elzanaty Puja Sakhuj | 2009 | Hepatology International2009，，2： | 2 |
| 8 | Trace metal contamination of sediments in an e-waste processing village in China显示文摘 | Coby S.C. Wong S.C. Wu Nurdan S. Duzgoren-Aydin Adnan Aydin Ming H. Wong | 2006 | Environmental Pollution2006，，2： | 2 |
| 9 | Evidence of excessive releases of metals from primitive e-waste processing in Guiyu, China显示文摘 | Coby S.C. Wong Nurdan S. Duzgoren-Aydin Adnan Aydin Ming Hung Wong | 2006 | Environmental Pollution2006，，1： | 2 |
| 10 | Protective effects of Rutin against methanol induced acute toxic optic neuropathy:an experimental study显示文摘AIM:To determine the effects of Rutin on methanol induced optic neuropathy and compare the results with the effects of ethanol.METHODS:Totally 30 rats were divided into 5 groups,with 6 rats in each group as follows:healthy controls(C),methotrexate(MTX),methotrexate+methanol(MTM),methotrexate+methanol+ethanol(MTME) and methotrexate+ methanol+Rutin(MTMR).In all rabbits except those of the control group,MTX,diluted in sterile serum physiologic,0.3 mg/kg per oral was applied for 7 d by the aid of a tube.After this procedure to the rats of MTM,MTME and MTMR groups,20% methanol with a dose of 3 g/kg per oral was given by the aid of a tube.In MTME group,4 h after the application of methanol,20% ethanol was applied by the same way with a dose of 0.5 g/kg.On the other hand,in MTMR group 4 h after the application of methanol,Rutin,which was dissolved in distilled water,was applied by the same way with a dose of 50 mg/kg.RESULTS:There were statistically significant differences in tissue 8-hydroxy-2 deoxyguanine(8-OHdG),interleukin-1β(IL-1β),tumor necrosis factor-alpha(TNF-α),malondialdehyde(MDA),myeloperoxidase(MPO).glutathione peroxidase(t GSH) and superoxide dismutase(SOD) levels between groups(P<0.001).In MTMR group tissue 8-OHdG,IL-1β,MDA,and MPO levels were similar with the healthy controls but significantly different than the other groups.In histopathological evaluations,in MTX group there was moderate focal destruction,hemorrhage and decrease innumber of astrocytes and oligodendrocytes;in MTM group there was severe destruction and edema with decrease in number of astrocytes and oligodendrocytes;in MTME group there was mild hemorrhage,mild edema,mildly dilated blood vessels with congestion while in MTMR group,optic nerve tissue was resembling the healthy controls.CONCLUSION:Rutin may prevent methanol-induced optic neuropathy via anti-inflammatory effects and decreasing the oxidative stress.New treatment options are warranted in this disease to avoid loss of vision in patients. | Nurdan Gamze Tasli Ferda Keskin Cimen Yücel Karakurt Turgay Ucak Renad Mammadov Bahadir Suleyman Nezahat Kurt Halis Suleyman | 2018 | International Journal of Ophthalmology(English edition)2018，11，5： | 2 |
| 11 | Fermentation of sunflower seed hull hydrolysate to ethanol by Pichia stipitis 显示文摘 | Mujgan Telli-Okur Nurdan Eken-Sarac | 2008 | Bioresource Technology2008，99，7： | 1 |
| 12 | The role of quantitative Ddimer levels in the follow-up and differential diagnosis of pulmonary thromboembolism and community-acquired pneumonia显示文摘 | Ayhan V Nurdan K Hatice K | 2012 | Turk J Med Sci2012，42，4： | 1 |
| 13 | Comparison of different pretreatments in ethanol fermentation using corn cob hemicellulosic hydrolysate with Pichia stipitis and Candida shehatae显示文摘 | Eken S Nurdan A Yesi M | 2000 | Biotechnology Letter2000，22，： | 1 |
| 14 | Treating denim fabrics with immobilized commercial cellulases显示文摘 | Nurdan K P Merih S A T | 2005 | Process Biochemistry2005，40，： | 1 |
| 15 | Sen Actuators显示文摘 | Suna T Nurdan P Robert P | 2004 | 97:33672004，97，： | 1 |
| 16 | Trace metal contamination of sediments in an e-waste processing village in China 显示文摘 | Coby SC Wong SC Wu B Nurdan S | 2006 | Environmental Pollution2006，19，： | 1 |
| 17 | Monitoring of buccal epithelial cells by alkaline comet assay ( single cell gel electrophoresis technique) in cytogenetic evaluation of chlorhexdine显示文摘 | Kaya E Nurdan O Semra S | 2002 | Clin Oral Invest2002，6，3： | 1 |
| 18 | Treating denim fabrics with immo-bilized commercial cellulases显示文摘 | NURDAN K P MERIH S’AZMI T | 2005 | Process Biochemistry2005，40，2： | 1 |
| 19 | Combined effects of Cu^2+ and Zn^2+ on activated sludge process显示文摘 | Nurdan Yurt Beyenal | 1997 | Water Research1997，31，4： | 1 |
| 20 | Production and stimulation of manganese peroxidase by immobilized Phanerochaete chrysosporium显示文摘 | RaziyeOU Nurdan Kp | 2005 | Process Biochemistry2005，40，： | 1 |
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