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| 1 | Endobiliary radiofrequency ablation for malignant biliary obstruction显示文摘BACKGROUND: The cornerstone of palliative treatment for inoperable extrahepatic cholangiocarcinoma is the relief of malignant biliary obstruction. The most commonly applied method is endoscopic stenting. However, the procedure can be complicated with stent obstruction. In this respect, endobiliary radiofrequency ablation may serve as an adjunctive tool for prolonging the stent patency. METHODS: Patients who underwent endoscopic retrograde cholangiopancreatography for differential diagnosis and/ or palliative treatment after the diagnosis of inoperable extrahepatic cholangiocarcinoma between March 2011 and January 2012 were analyzed. Those in whom endobiliary radiofrequency ablation and endoscopic stenting was successfully performed were included in the study. Technical details of the procedure, duration of stent patency, length of hospital stay, short-term morbidity and mortality rate were documented. RESULTS: Seventeen patients were analyzed, and 10 patients were included in the study. The morbidity and mortality rate within the first 30 days after the procedure was 20% and 0%, respectively. In 2 patients, mild pancreatitis occurred because of the endobiliary procedure. In 1 patient, endobiliary decompression could not be achieved, and therefore, percutaneous transhepatic biliary drainage was carried out. The median duration of stent patency in 9 patients with successful biliary decompression was 9 months (range 6-15). CONCLUSION: Endobiliary radiofrequency ablation seems to be safe and feasible as a palliative measure and may prolong the stent patency and overall survival in patients with malignant biliary obstruction due to inoperable extrahepatic cholangio-carcinoma. | Halil Alis Cetin Sengoz Murat Gonenc Mustafa Uygar Kalayci Ali Kocatas | 2013 | Hepatobiliary & Pancreatic Diseases International2013，12，4： | 25 |
| 2 | Endoscopic submucosal dissection for premalignant lesions and noninvasive early gastrointestinal cancers显示文摘AIM: To investigate the indication, feasibility, safety, and clinical utility of endoscopic submucosal dissection (ESD) in the management of various gastrointestinal pathologies. METHODS: The medical records of 60 consecutive patients (34 female, 26 male) who underwent ESD at the gastroenterology department of Kocaeli University from 2006-2010 were examined. Patients selected for ESDhad premalignant lesions or non-invasive early cancers of the gastrointestinal tract and had endoscopic and histological diagnoses. Early cancers were considered to be confined to the submucosa, with no lymph node involvement by means of computed tomography and endosonography. RESULTS: Sixty ESD procedures were performed. The indications were epithelial lesions (n = 39) (33/39 adenoma with high grade dysplasia, 6/39 adenoma with low grade dysplasia), neuroendocrine tumor (n = 7), cancer (n = 7) (5/7 early colorectal cancer, 2/7 early gastric cancer), granular cell tumor (n = 3), gastrointestinal stromal tumor (n = 2), and leiomyoma (n = 2). En bloc and piecemeal resection rates were 91.6% (55/60) and 8.3% (5/60), respectively. Complete and incomplete resection rates were 96.6% (58/60) and 3.3% (2/60), respectively. Complications were major bleeding [n = 3 (5%)] and perforations [n = 5 (8.3%)] (4 colon, 1 stomach). Two patients with colonic perforations and two patients with submucosal lymphatic and microvasculature invasion (1 gastric carcinoid tumor, 1 colonic adenocarcinoma) were referred to surgery. During a mean follow-up of 12 mo, 1 patient with adenoma with high grade dysplasia underwent a second ESD procedure to resect a local recurrence. CONCLUSION: ESD is a feasible and safe method for treatment of premalignant lesions and early malignant gastrointestinal epithelial and subepithelial lesions. Successful en bloc and complete resection of lesions yield high cure rates with low recurrence. | Sadettin Hulagu Omer Senturk Cem Aygun Orhan Kocaman Altay Celebi Tolga Konduk Deniz Koc Goktug Sirin Ugur Korkmaz Ali Erkan Duman Neslihan Bozkurt Gokhan Dindar Tan Attila Yesim Gurbuz Orhan TarcinDivision of Gastroenterology Derince State Hospital Kocaeli 41900 Turkey Cem Kalayci | 2011 | World Journal of Gastroenterology2011，17，13： | 23 |
| 3 | Adrenomedullin in cirrhotic and non-cirrhotic portal hypertension显示文摘AIM:Adrenomedullin (ADM) is a potent vasodilator peptide.ADM and nitric oxide (NO) are produced in vascular endothelial cells. Increased ADM level has been linked to hyperdynamic circulation and arterial vasodilatation in cirrhotic portal hypertension (CPH). The role of ADM in non-cirrhotic portal hypertension (NCPH) is unknown, plasma ADM levels were studied in patients with NCPH, compensated and decompensated cirrhosis in order to determine its contribution to portal hypertension (PH) in these groups.METHODS: There were 4 groups of subjects. Group 1consisted of 27 patients (F/M: 12/15) with NCPH due to portal and/or splenic vein thrombosis (mean age: 41±12years), group 2 consisted of 14 patients (F/M: 6/8) with compensated (Child-Pugh A) cirrhosis (mean age: 46±4),group 3 consisted of 16 patients (F/M: 6/10) with decompensated (Child-Pugh C) cirrhosis (mean age: 47±12).Fourteen healthy subjects (F/M: 6/8) (mean age: 44±8) were used as controls in Group 4. ADM level was measured by ELISA. NO was determined as nitrite/nitrate level by chemoluminescence.RESULTS: Adl level in Group 11 (236±61.4 pg/mL) was significantly higher than that in group 2 (108.4±28.3 pg/mL)and group 4 (84.1±31.5 pg/mL) (both P<0.0001) but was lower than that in Group3 (324±93.7 pg/mL) (P=0.002). NO level in group 1 (27±1.4 μmol/L) was significantly higher than that in group 2 (19.8±2.8 μmol/L) and group 4 (16.9±1.6μmol/L) but was lower than that in Group 3 (39±3.6 μmol/L)(for all three P<0.0001). A strong correlation was observed between ADM and NO levels (r=0.827, P<0.0001).CONCLUSION: Adrenomedullin and NO levels were high in both non-cirrhotic and cirrhotic portal hypertension and were closely correlated, Adrenomedullin and NO levels increased proportionally with the severity of cirrhosis, and were significantly higher than those in patients with NCPH.Portal hypertension plays an important role in the increase of ADM and NO. Parenchymal damage in cirrhosis may contribute to the increase in these parameters. | V Tahan E Avsar C Karaca E Uslu F Eren S Aydin H Uzun HO Hamzaoglu F Besisik C Kalayci A Okten N Tozun | 2003 | World Journal of Gastroenterology2003，9，10： | 5 |
| 4 | Isolation and diagnosis of Helicobacter pylori by a new method: Microcapillary culture显示文摘AIM:To investigate the performance of the microcapillary culture method(MCM) in Helicobacter pylori(H.pylori) isolation and diagnosis.METHODS:Microcapillary culture(MC),classical culture(CC),rapid urease(CLO) test,and histopathologic examination(HE) were performed with biopsy samples.Homogenized biopsy samples were loaded into capillary tubes and incubated for 48 h at 37 ℃ without providing a microaerophilic environment.Additionally,three or four loops of the homogenized sample were inoculated in a ready-to-use selective medium(Becton Dickinson,Helicobacter Agar,Modified) specific for the isolation of H.pylori and incubated at 37 ℃ in a microaerophilic atmosphere provided by Campy Gen(Becton Dickinson,Gas Pack).Bacteria reproducing in microcapillary tubes were evaluated in an inverted microscope and also were evaluated after performing a CC with the content.Results obtained by CC,CLO test,and HE were compared with those of MC.The diagnostic performances of the methods used in this study were evaluated for specificity,sensitivity,positive predictive value(PPV),negative predictive value(NPV),and CI.RESULTS:H.pylori was found positive by CLO test +HE and/or CC culture in 26 patient antrum and corpus biopsy samples.In 25(25/26) patient biopsy samples,H.pylori was isolated by MCM,whereas in only 14(14/26) patient biopsy samples,H.pylori was isolatedby CC.CLO test and HE were found positive in 17(17/26) patient biopsy samples.Comparing the results of the isolation of H.pylori by MCM,CC,CLO test,and HE,the sensitivity of the MCM was found as 96%,the specificity as 80%,the PPV as 83%,the NPV as 95%,and the 95%CI as 0.76(χ2 =31.51,P < 0.01) whereas the sensitivity of the CC was found as 54%(χ2 =19.15,P < 0.01),and the sensitivity of the CLO test and HE were found as 65%(χ2 =25.26,P < 0.01).CONCLUSION:This new microcapillary cultivation method for H.pylori has high diagnostic sensitivity compared with CC,HE,and CLO tests. | Adil M Allahverdiyev Melahat Bagirova Reyhan Caliskan Hrisi Bahar Tokman Hayat Aliyeva Gokce Unal Olga Nehir Oztel Emrah Sefik Abamor Hilal Toptas Pelin Yuksel Fatma Kalayci Mustafa Aslan Yusuf Erzin Kadir Bal Bekir S Kocazeybek | 2015 | World Journal of Gastroenterology2015，21，9： | 2 |
| 5 | Neurochemical metabolites in the medial prefrontal cortex in bipolar disorder A proton magnetic resonance spectroscopy study显示文摘The aim of this study was to investigate proton magnetic resonance spectroscopy metabolite values in the medial prefrontal cortex of individuals with euthymic bipolar disorder. The subjects consisted of 15 patients with euthymic bipolar disorder type Ⅰ and 15 healthy controls. We performed proton magnetic resonance spectroscopy of the bilateral medial prefrontal cortex and measured levels of N-acetyl aspartate, choline and creatine. Levels of these three metabolites in the medial prefrontal cortex were found to be lower in patients with bipolar disorder compared with healthy controls. A positive correlation was found between illness duration and choline levels in the right medial prefrontal cortex. Our study suggests that during the euthymic period, there are abnormalities in cellular energy and membrane phospholipid metabolism in the medial prefrontal cortex, and that this may impair neuronal activity and integrity. | Osman zdel Demet Kalayci Gülfizar Szeri-Varma Yilmaz Kiroglu Selim Tümkaya Tuge Toker-Ugurlu | 2012 | Neural Regeneration Research2012，7，36： | 2 |
| 6 | Biliary tract complications after orthotopic liver transplantation with choledochocholedochostomy anastomosis: endoscopic findings and results of therapy显示文摘 | Rungsun Rerknimitr Stuart Sherman Evan L. Fogel Cem Kalayci Lawrence Lumeng Naga Chalasani Paul Kwo Glen A. Lehman | 2002 | Gastrointestinal Endoscopy2002，，2： | 2 |
| 7 | Zinc deficiency as critical problem in wheat production in Central Anatolia显示文摘 | Cakmak I Yilmaz A Kalayci M | 1996 | Plant and Soil1996，180，： | 1 |
| 8 | Zinc deficiency as a critical problem in wheat production in Central Anatolia 显示文摘 | Cakmak I Yilmaz A Kalayci M | 1996 | Plant Soil1996，180，16： | 1 |
| 9 | Effects of Pentoxifylline on TNF-α Production by Peripheral Blood Mononuclear Cells in Patients with Nonalcoholic Steatohepatitis显示文摘 | Deniz G. Duman Filiz Ozdemir Esra Birben Ozlem Keskin Emel Ek?io?lu-Demiralp Cigdem Celikel Omer Kalayci Cem Kalayci | 2007 | Digestive Diseases and Sciences2007，，10： | 1 |
| 10 | Transvaginal ultrasound‐guided local methotrexate administration as the first‐line treatment for cesarean scar pregnancy: Follow‐up of 18 cases显示文摘 | Tayfun Cok Hakan Kalayci Halis Ozdemir Bulent Haydardedeoglu Ayse H. Parlakgumus Ebru Tarim | 2015 | J Obstet Gynaecol Res2015，，： | 1 |
| 11 | Modified quantitative subjective global assessment of nutrition in patients on the renal transplant waiting list显示文摘 | DEMIRAG A KALAYCI M KANTARCI G | 2009 | Transplant Proc2009，41，1： | 1 |
| 12 | Zinc deficiency as a practical problem in plant and human nutrition in turkey:A NATO-science for stability project显示文摘 | Cakmak I Kalayci M Ekiz H | 1999 | Field Crops Research1999，60，： | 1 |
| 13 | Serum levels of omentin, chemerin and adipsin in patients with biopsy-proven nonalcoholic fatty liver disease显示文摘 | Yusuf Yilmaz Oya Yonal Ramazan Kurt Yesim Ozen Alahdab Fatih Eren Osman Ozdogan Cigdem Ataizi Celikel Nese Imeryuz Cem Kalayci Erol Avsar | 2011 | Scandinavian Journal of Gastroenterology2011，，1： | 1 |
| 14 | Zinc deficiency as a critical problem in wheat production in Central Anatolia显示文摘 | Cakmak I Yilmaz A Kalayci M | 1996 | Plant and Soil1996，180，： | 1 |
| 15 | Neuroprotective effects of Nigella sativa on experimental spinal cord injury in rats显示文摘 | Kanter M Coskun O Kalayci M | | 0，，： | 1 |
| 16 | Magnetic resonance cholangiopancr - eatography documents bile leak site after cholecystectomy in patients with aberrant right hepatic duct where ERCP fails 显示文摘 | Kalayci C Aisen A Canal D | 2000 | Gastrointest Endosc2000，52，2： | 1 |
| 17 | Critical role for galectin-3in airway inflammation and bronchial hyperresponsiveness in a murine model of asthma显示文摘 | Zuberi RI Hsu DK Kalayci O | | 0，，06： | 1 |
| 18 | Zinc deficiency as a practical problem in plant and human nutrition in Turkey: A NATO-scienee for stability project 显示文摘 | Cakmak I Kalayci M Ekiz H | 1999 | Field Crops Research1999，60，： | 1 |
| 19 | Impaired left ventricular mechanics in nonalcoholic fatty liver disease: a speckle-tracking echocardiography study显示文摘 | Karabay CY Kocabay G Kalayci A | 2014 | Eur J Gastroenterol Hepatol2014，26，3： | 1 |
| 20 | Transvaginal ultra- sound-guided local methotrexate administration as the first-line treatment for cesarean scar pregnancy: Follow- up of 18 cases显示文摘 | Cok T Kalayci H Ozdemir H | 2014 | J Obstet Gynaecol Res2014，41，5： | 1 |
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