维普中文期刊产品整合服务
2951篇 您的检索式:作者名="DEMIR"
    题名 作者 年代 出处 被引量
1Current 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 2016World Journal of Hepatology2016,8,28:50
2Recent 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 2016World Journal of Gastroenterology2016,22,17:29
3Bone marrow biopsy findings in brucellosis patients with hematologic abnormalities显示文摘Cengiz Demir Mustafa Kasim Karahocagil Ramazan Esen Murat Atmaca Hayriye Gonullu Hayrettin Akdeniz 2012Chinese Medical Journal2012,,11:12
4Gastroprotective activity of Nigella sativa L oil and its constituent, thymoquinone against acute alcohol-induced gastric mucosal injury in rats显示文摘AIM: To evaluate the role of reactive oxygen species in the pathogenesis of acute ethanol-induced gastric mucosal lesions and the effect of Nigella sativa L oil (NS) and its constituent thymoquinone (TQ) in an experimental model.METHODS: Male Wistar albino rats were assigned into 4groups. Control group was given physiologic saline orally (10 mL/kg body weight) as the vehicle (gavage); ethanol group was administrated 1 mL (per rat) absolute alcohol by gavage; the third and fourth groups were given NS (10 mL/kg body weight) and TQ (10 mg/kg body weight p.o) respectively 1 h prior to alcohol intake. One hour after ethanol administration, stomach tissues were excised for macroscopic examination and biochemical analysis.RESULTS: NS and TQ could protect gastric mucosa against the injurious effect of absolute alcohol and promote ulcer healing as evidenced from the ulcer index (UI) values. NS prevented alcohol-induced increase in thiobarbituric acid-reactive substances (TBARS), an index of lipid peroxidation. NS also increased gastric glutathione content (GSH), enzymatic activities of gastric superoxide dismutase (SOD) and glutathione-S-transferase (GST). Likewise, TQ protected against the ulcerating effect of alcohol and mitigated most of the biochemical adverse effects induced by alcohol in gastric mucosa, but to a lesser extent than NS. Neither NS nor TQ affected catalase activity in gastric tissue.CONCLUSION: Both NS and TQ, particularly NS can partly protect gastric mucosa from acute alcohol-induced mucosal injury, and these gastroprotective effects might be induced, at least partly by their radical scavenging activity.Mehmet Kanter Halit Demir Cengiz Karakaya Hanefi Ozbek 2005World Journal of Gastroenterology2005,11,42:9
5Interaction between seed size and NaCl on germination and early seedling growth of some Turkish cultivars of chickpea(Cicer arietinum L.)显示文摘Chickpea is an important food legume crop of Turkey and is largely grown for human consumption on low moisture or salt-affected soils. The objective of the study was to find the effects of NaCl stress at electrical conductivities of 4.5,8.6,12.7 and 16.3 dS/m and seed sizes(7,8 and 9 mm) on germination and early seedling growth of three popular chickpea cultivars(AKN-97,Gokce and Uzunlu-99). Mean frequency of germination,germination time,germination index,root length,shoot length and seedling fresh weight showed seed size-dependent responses of cultivars to salt stress. In general,small seeds germinated and grew more rapidly compared to medium and large seeds of the same cultivars against all levels of salt stress,with the best results in cultivar Uzunlu-99. No effect of NaCl treatments was observed on frequency of germination;however,a drastic decrease in early seedling growth was recorded at increased NaCl concentrations. Regression analysis results showed a significantly positive rela-tionship(P<0.01) between seed size and mean germination time,whereas a significantly negative relationship was recorded between seed size and germination index,root length,shoot length. Moreover,linear regression values apparently confirmed that increased seed size in each cultivar affected decreased germination index,root and shoot lengths with enhanced mean germination time. Thus,it was concluded that the use of small seeds could considerably reduce the production costs of chickpea in salt-affected soils.Muharrem KAYA Gamze KAYA Mehmet Demir KAYA Mehmet ATAK Sevil SAGLAM Khalid Mahmood KHAWAR Cemalettin Yasar CIFTCI 2008Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2008,9,5:8
6Pain sensation in pancreatic diseases is not uniform: The different facets of pancreatic pain显示文摘AIM: To systematically characterize specific pain patterns in the most frequent pancreatic diseases.METHODS: Pain in patients with chronic pancreatitis(n = 314), pancreatic cancer(n = 469), and other pancreatic tumors(n = 249) including mucinous(n = 20) and serous cystadenoma(n = 31), invasive(n = 37) and non-invasive intraductal papillary mucinous neoplasia(IPMN; n = 48), low stage(n = 18) and high stage neuroendocrine neoplasia(n = 44), and ampullary cancer(n = 51) was registered and correlated with clinicopathological data. Survival times were estimated by the Kaplan-Meier method. Patients alive at the follow-up time were censored. Survival curves were compared statistically using the log-rank test.RESULTS: Forty-nine point one percent of pancreatic cancer patients revealed no pain, whereas in chronic pancreatitis only 18.3% were pain free. In contrary, moderate/severe pain was registered in 15.1% in pancreatic cancer patients that was increased in chronic pancreatitis with up to 34.2%. Serous cystadenoma was asymptomatic in most cases(58.1%), whereas 78.9% of all mucinous cystadenoma patients suffered pain. In neuroendocrine neoplasia pain was not a key clinical symptom since 64% of low stage neuroendocrine neoplasia and 59% of high stage neuroendocrine neoplasia patients were pain free. Cancer localization in the pancreatic body and patients with malignant pancreatic neoplasms were associated with more severe pain. Tumor grading and stage did not show any impact on pain. Only in pancreatic cancer, pain was directly associated with impaired survival.CONCLUSION: Pancreatic pain depicts different patterns of abdominal pain sensation according to the respective pancreatic disorder and does not allow a unification of the term pancreatic pain.Jan G D'Haese Mark Hartel Ihsan Ekin Demir Ulf Hinz Frank Bergmann Markus W Büchler Helmut Friess Güralp O Ceyhan 2014World Journal of Gastroenterology2014,20,27:8
7Assessment of the correlation between serum prolidase and alpha-fetoprotein levels in patients with hepatocellular carcinoma显示文摘AIM: To determine the predictive value of increased prolidase activity that reflects increased collagen turnover in patients with hepatocellular carcinoma(HCC).METHODS: Sixty-eight patients with HCC(mean age of 69.1 ± 10.1), 31 cirrhosis patients(mean age of59.3 ± 6.3) and 33 healthy volunteers(mean age of51.4 ± 12.6) were enrolled in this study. Univariate and multivariate analysis were used to evaluate the association of serum α-fetoprotein(AFP) values with HCC clinicopathological features, such as tumor size,number and presence of vascular and macrovascular invasion. The patients with HCC were divided into groups according to tumor size, number and presence of vascular invasion(diameters; ≤ 3 cm, 3-5 cmand ≥ 5 cm, number; 1, 2 and ≥ 3, macrovascular invasion; yes/no). Barcelona-clinic liver cancer(BCLC)criteria were used to stage HCC patients. Serum samples for measurement of prolidase and alphafetoprotein levels were kept at-80 ℃ until use.Prolidase levels were measured spectrophotometrically and AFP concentrations were determined by a chemiluminescence immunometric commercial diagnostic assay.RESULTS: In patients with HCC, prolidase and AFP values were evaluated according to tumor size, number,presence of macrovascular invasion and BCLC staging classification. Prolidase values were significantly higher in patients with HCC compared with controls(P <0.001). Prolidase levels were significantly associated with tumor size and number(P < 0.001, P = 0.002,respectively). Prolidase levels also differed in patients in terms of BCLC staging classification(P < 0.001).Furthermore the prolidase levels in HCC patients showed a significant difference compared with patients with cirrhosis(P < 0.001). In HCC patients grouped according to tumor size, number and BCLC staging classification, AFP values differed separately(P = 0.032,P = 0.038, P = 0.015, respectively). In patients with HCC, there was a significant correlation(r = 0.616; P< 0.001) between prolidase and AFP values in terms of tumor size, number and BCLC staging classification,whereas the presence of macrovascular invasion did not show a positive association with serum prolidase and AFP levels.CONCLUSION: Considering the levels of both serum prolidase and AFP could contribute to the early diagnosing of hepatocellular carcinoma.Sevil Uygun Ilikhan Muammer Bilici Hatice Sahin Ayse Semra Demir Akca Murat Can Ibrahim Ilker Oz Berrak Guven M Cagatay Buyukuysal Yucel Ustundag 2015World Journal of Gastroenterology2015,21,22:8
8Increased expression of YAP1 in prostate cancer correlates with extraprostatic extension显示文摘Objective:Yes associated protein 1(YAP1)is a member of the Hippo pathway,acting as a transcriptional coactivator.To elucidate the role of YAP1 and phosphorylated(p)YAP1 in prostate cancer(PCa)tumorigenesis,we investigated their expression in clinical samples of PCa and cell lines.Methods:Fifty-four tumor,adjacent nontumor,and prostate intraepithelial neoplasia(PIN)tissues from patients with PCa after radical prostatectomy were selected from a retrospective cohort and studied using immunohistochemistry(IHC).Protein and m RNA expression levels of YAP1 were evaluated by Western blot analysis and quantitative real-time reverse transcription PCR,respectively,in cancer cell lines.Publicly available gene expression datasets were downloaded to analyze YAP1 m RNA and protein levels in PCa tissue samples.Results:IHC analysis of PCa tissues revealed that YAP1 staining intensities were moderate to weak in the nucleus and cytoplasm of tumor cells,whereas adjacent normal epithelia showed strong staining.We observed that benign prostates were characterized by higher expression levels of both nuclear(P=0.004)and cytosolic(P=0.005)YAP1.p YAP1 staining was weak in the cytoplasm and absent in the nucleus of all the tissues investigated.YAP1 expression was an indicator of extraprostatic extension(EPE).The level of YAP1 was negatively correlated with the level of the androgen receptor(AR)in The Cancer Genome Atlas dataset and Western blot analysis of cell lines.Conclusions:Our study suggested that YAP1 expression is heterogeneous in PCa tissue samples;therefore,YAP1 might play different roles in different aspects of PCa progression.This might involve AR–YAP1 interplay in PCa.Filiz Kisaayak Collak Ummuhan Demir Seyma Ozkanli Esra Kurum Pinar Engin Zerk 2017Cancer Biology & Medicine2017,14,4:8
9A bibliometric analysis of academic publication on diabetic retinopathy disease trends during 1980-2014:a global and medical view显示文摘·AIM: To investigate diabetic retinopathy(DR) literature using the Institute for Scientific Information(ISI) Web of Science(Wo S) database and to analyse the correlation results between socio-economic development datas and number of DR publications.·METHODS: The statistical analysis of the documents published during 1980-2014 was analysed. The data of this study were based on the database of Wo S. 'Diabetic retinopathy' was used as the keywords to search the Wo S database.·RESULTS: The United States ranked first in the DR research with 1840 publications and 24.38% of the world production followed by England and Japan. Besides, the most productive country was Iceland. A high correlation was found between number of publications and 2014 gross domestic product( GDP) values of 81 countries(r =0.800, P <0.001). We found a significant correlation between number of publications and Human Development Index(HDI)(r =0.645, P =0.001). There is a moderate correlation between people with diabetes and number of DR publications for 81 countries(r =0.514, P <0.01). It could be analysed that estimated publication number with DR title will be 445 according to the regression curve constituted with cubic model in 2015(R2=1.000).·CONCLUSION: More DR studies have been published in developed countries, DR and other complications of diabetes have gradually increased in developing countries over recent decades. It can be expected that the number of DR studies will gradually increase in developing countries.Cagatay Caglar Emre Demir Ferit Kerim Kucukler Mustafa Durmus 2016International Journal of Ophthalmology(English edition)2016,9,11:7
10Evaluation of peripapillary retinal nerve fiber layer, macula and ganglion cell thickness in amblyopia using spectral optical coherence tomography显示文摘AIM:To investigate peripapillary retinal nerve fiber layer (RNFL), macula and ganglion cell layer thicknesses (GCC) in amblyopic eyes with spectral domain optical coherence tomography (SD-OCT). METHODS:Thirty six patients with a history of unilateral amblyopia and thirty two children who had emmetropia without amblyopia were included in this study. In this institutional study, 36 eyes of 36 patients with amblyopia (AE), 36 fellow eyes without amblyopia (FE), and 32 eyes of 32 normal subjects (NE) were included. RNFL, GCC and macular thickness measurements were performed with RS-3000 OCT Retina Scan (Nidek Inc CA. USA). RESULTS:The mean global thicknesses of the RNFL were 113.22 ±21.47, 111.57 ±18.25, 109.96 ±11.31μm in the AE, FE, and NE, respectively. There was no statistically significant difference for mean global RNFL thickness among the eyes (P =0.13). The mean thicknesses of the macula were 258.25±18.31, 258.75±19.54, 248.62±10.57μm in the AE, FE and NE, respectively. There was no statistically significant difference for thickness of macula among the eyes (P =0.06). The GCC was investigated into two parts:superior and inferior. The mean thicknesses of superior GCC were 102.57 ±13.32, 103.32 ±10.64, 100.52 ± 5.88μm in the AE, FE, and NE, respectively. The mean thicknesses of inferior GCC were 103.82 ±12.60, 107.82 ± 12.33, 105.86±10.79μm in the AE, FE and NE, respectively. There was no statistically significant difference for thickness of superior and inferior GCC between the eyes (P =0.63, P =0.46). ·CONCLUSION:The macular thicknesses of AE and FE were greater than the NE, although it was not statistically significant. Amblyopia does not seem to have a profound effect on the RNFL, macula and GCC.Penpe Gul Firat Ercan Ozsoy Soner Demire Tongabay Cumurcu Abuzer Gunduz 2013International Journal of Ophthalmology(English edition)2013,6,1:6
11Importance of MutL homologue MLH1 and MutS homologue MSH2 expression in Turkish patients with sporadic colorectal cancer显示文摘AIM: To assess the incidence of MLH1 (the human MutL homologue) and MSH2 (the human MutS homologue) protein expression in Turkish patients with sporadic colorectal cancers and to compare their survival and clinicopathological features. METHODS: We validated the tissue microarray technology in 77 colorectal carcinomas by analyzing the immunohistochemical expression of proteins involved in two main pathways of colorectal carcinogenesis: p53 protein for loss of heterozygosity tumors; MLH1 and MSH2 proteins for microsatellite instability (MSI). RESULTS: Our analysis showed that 29 (39.2%) had loss of MLH1 expression, 5 (6.8%) had loss of MSH2 expression and 2 cases had loss of expression of both proteins. We found that 60% of MSH2-negative tumors were located in the right side of the colon; all MSH2-negative cases were women. In addition, the loss of MSH2 expression was correlated with low p53 expression. Neither MLH1 nor MSH2 expressions were associated with prognosis, although there seemed a tendency of longer survival (71.7 ± 8.65 mo vs 47.08 ± 5.26 mo) for the patients with MLH1-negative versus MLH1-positive carcinomas. There were not significant differences in overall and recurrence-free survival among MLH1/MSH2-positive and -negative cases.CONCLUSION: Our data supports that Turkish patients with MLH1- and MSH2-defective tumors have some distinct features from each other. Although prognostic importance remains controversial, immunohistochemical analysis of mismatch repair genes may be used as a routine histopathological examination of sporadic colorectal carcinomas.Sibel Erdamar Esra Ucaryilmaz Gokhan Demir Tayfun Karahasanoglu Gulen Dogusoy Ahmet Dirican Suha Goksel 2007World Journal of Gastroenterology2007,13,33:5
12Efficacy of ankaferd blood stopper application on nonvariceal upper gastrointestinal bleeding显示文摘AIM:To prospectively assess the hemostatic efficacy of the endoscopic topical use of ankaferd blood stopper(ABS) in active non-variceal upper gastrointestinal system(GIS) bleeding.METHODS:Endoscopy was performed on 220 patients under suspiciency of GIS bleeding.Patients with active non-variceal upper gastrointestinal bleeding(NVUGIB) with a spurting or oozing type were included.Firstly,8-10 cc of isotonic saline was sprayed to bleeding lesions.Then,8 cc of ABS was applied on lesions in which bleeding continued after isotonic saline application.The other endoscopic therapeutic methods were applied on the lesions in which the bleeding did not stop after ABS.RESULTS:Twenty-seven patients had an active NVUGIB with a spurting or oozing type and 193 patients were excluded from the study since they did not have non-variceal active bleeding.8 cc of ABS was sprayed on to the lesions of 26 patients whose bleeding continued after isotonic saline and in 19 of them,bleeding stopped after ABS.Other endoscopic treatment methods were applied to the remaining patients and the bleeding was stopped with these interventions in 6 of 7 patients.CONCLUSION:ABS is an effective method on NVUGIB,particularly on young patients with no coagulopathy.ABS may be considered as part of a combination treatment with other endoscopic methods.Gokhan Gungor M Hakan Goktepe Murat Biyik Ilker Polat Tuncer Tuna Huseyin Ataseven Ali Demir 2012World Journal of Gastrointestinal Endoscopy2012,4,12:5
13老年男性勃起功能及迟发性性腺功能减退症状与下尿路症状严重性的关系显示文摘本文旨在研究土耳其爱琴海地区的老年男性下尿路症状(LUTSs)、勃起功能障碍(ED)和有症状的迟发性性腺功能减退症(SLOH)三者间的关系。符合以下标准的500名男性患者被纳入该研究:40周岁以上;过去6个月内有稳定的性关系;在六个泌尿外科诊所之一进行过就诊登记。每位患者均行血清PSA、睾酮水平及尿流率的检测,并填写国际前列腺症状评分和生活质量评分(IPSS-QoL)量表、国际勃起功能指数(IIEF)问卷和老年男性症状(AMS)量表。在所有的研究对象中,23.9%的患者有轻度LUTSs,53.3%有中度LUTSS,22.8%有重度LUTSS。每组间总睾酮水平无明显差异。除此之外,69.6%的病人患有ED,且ED的发生率与LUTS严重性呈正相关。71.2%的患者出现SLOH(AMS〉27),且IPSS评分越高,严重的性腺功能减退症状的发生率也越高。相关性分析显示以上三种问卷分数之间有显著关联。总之,LUTS严重性是ED和SLOH的非年龄依赖性危险因素,LUTS严重性和SLOH症状之间似乎有显著的相关性,但还需要从病因学和生物学角度进行深入阐明。Ozan Bozkurt Deniz Bolat Omer Demir Oktay Ucer Ali Sahin Burak Ozcift Abdulkadir Pekta Tahir Turan Bilal H Gümü Ertan Cans Ahmet Bolukbasi Haluk Erol Adil Esenx 2013Asian Journal of Andrology2013,15,6:4
14Tracheobronchopathia osteochondroplastica: four cases显示文摘Dursun Tatar Gunes Senol Atike Demir Gulru Polat 2012Chinese Medical Journal2012,,16:4
15低功率超声强化方铅矿-乙基黄原酸钾浮选体系显示文摘研究在乙基黄原酸钾(KEX)存在的条件下利用超声提高方铅矿可浮性的可能性。为此,除表面化学研究外,还进行微浮选实验,包括测量不同超声功率水平和调节时间时的Zeta电势、接触角和气泡-颗粒粘附时间。研究结果表明,当超声功率为30 W、调节时间为2 min时浮选回收率最大,为77.5%。另外,使用超声后获得更负的Zeta电势、更大的接触角和更短的气泡-颗粒粘附时间,表明超声作用使方铅矿的疏水性增加。Can GUNGOREN Yasin BAKTARHAN Ismail DEMIR Safak Gokhan OZKAN 2020Transactions of Nonferrous Metals Society of China2020,30,4:4
16Identification of differentially expressed genes after partial rat liver ischemia/reperfusion by suppression subtractive hybridization显示文摘AIM: To identify potential diagnostic target genes in early reperfusion periods following warm liver ischemia before irreversible liver damage occurs.METHODS: We used two strategies (SSH suppression subtractive hybridization and hybridization of cDNA arrays)to determine early changes in gene expression profiles in a rat model of partial WI/R, comparing postischemic and adjacent nonischemic liver lobes. Differential gene expression was verified (WT/R; 1 h/2 h) and analyzed in more detail after warm ischemia (1 h) in a reperfusion time kinetics (0, 1, 2 and 6 h) and compared to untreated livers by Northern blot hybridizations. Protein expression was examined on Western blots and by immunohistochemistry for four differentially expressed target genes (Hsp70,Hsp27, Gadd45a and IL-1rl).RESULTS: Thirty-two individual WI/R target genes showing altered RNA levels after confirmation by Northern blot analyzes were identified. Among them, six functionally uncharacteristic expressed sequences and 26 known genes (12 induced in postischemic liver lobes, 14 with higher transcriptional expression in adjacent nonischemic liver lobes). Functional categories of the verified marker genes indicate on the one hand cellular stress and tissue damage but otherwise activation of protective cellular reactions (AP-1 transcription factors, apoptosis related genes, heat shock genes). In order to assign the transcriptional status to the biological relevant protein level we demonstrated that Hsp70, Hsp27, Gadd45a and IL-1rI were clearly up-regulated comparing postischemic and untreated rat livers, suggesting their involvement in the WI/R context.CONCLUSION: This study unveils a WI/R response gene set that will help to explore molecular pathways involved in the tissue damage after WI/R. In addition, these genes especially Hsp70and Gadd45a might represent promising new candidates indicating WI/R liver damage.Christine Fallsehr Christina Zapletal Michael Kremer Resit Demir Magnus von Knebel Doeberitz Ernst Klar 2005World Journal of Gastroenterology2005,11,9:4
17Laryngopharyngeal reflux and Helicobacter pylori显示文摘Laryngopharyngeal reflux(LPR) occurs when gastric contents pass the upper esophageal sphincter, causing symptoms such as hoarseness, sore throat, coughing, excess throat mucus, and globus. The pattern of reflux is different in LPR and gastroesophageal reflux. LPR usually occurs during the daytime in the upright position whereas gastroesophageal reflux disease more often occurs in the supine position at night-time or during sleep. Ambulatory 24-h double pH-probe monitoring is the gold standard diagnostic tool for LPR. Acid suppression with proton pump inhibitor on a long-term basis is the mainstay of treatment. Helicobacter pylori(H. pylori) is found in many sites including laryngeal mucosa and interarytenoid region. In this paper, we aim to present the relationship between LPR and H. pylori and review the current literature.Taner Yllmaz Münir Demir Bajin Rlza nder Günayd?n Serdar zer Tevfik Szen 2014World Journal of Gastroenterology2014,20,27:4
18Colorectal stenting for palliation and as a bridge to surgery:A 5-year follow-up study显示文摘AIM: To evaluate the long-term effectiveness of colonic stents in colorectal tumors causing large bowel obstruction.METHODS: We retrospectively analyzed data from 49 patients with colorectal cancer who had undergone colorectal stent placement between January 2008 and January 2013. Patients' symptoms,characteristics and clinicopathological data were obtained by reviewing medical records. The obstruction was diagnosed clinically and radiologically. Histopathological diagnosis was achieved endoscopically. Technical success rate(TSR)was defined as the ratio of patients with correctly placed SEMS upon stent deployment across the entire stricture length to total number of patients. Clinical success rate(CSR) was defined as the ratio of patients with technical success and successful maintenance of stent function before elective surgery(regardless of number of SEMS deployed) to total number of patients. The surgical success rate(SSR) of colorectal stent as a bridge to surgery was defined as the ratio of patients with successful surgical procedures. Unsuccessful surgical outcomes were defined as being due to insufficient colonic decompression. The technical,clinical,surgical success rates and complications after stenting were assessed.RESULTS: The median age of patients was 64(36 to 89). 44.9% of patients were male and 55.1% were female. Eighteen patients had the obstruction located in the rectum,15 patients in the rectosigmoid region,10 patients in the sigmoid region,and 6 patients had a tumor causing obstruction in the proximal colon. Each patient was categorized pathologically as stage 2(32.7%,16 patients) or stage 3(42.9%,21 patients) and 12 patients(24.4%) had metastatic disease. None of the patients received chemotherapy before stenting. Stenting was undertaken in 37 patients as a bridge to surgery,and in 12 patients stents were used for palliation. Median time to surgery after stenting was 30 ± 91.9 d. All surgery was completed in one single operation and thus no colostomy with stoma was needed. The median overall survival rate of patients with stage 2-3 colorectal cancer was 53.1 mo and stage 4 was 37.1 mo(P = 0.04). Metastatic colorectal patients who were treated palliatively with stents had backbone chemotherapy with oxaliplatin and/or irinotecan-based regimens plus antiangiogenic therapies,especially bevacizumab. Resolution of the obstruction and clinical improvement was achieved in all patients. The technical,clinical and surgical success rates were 95.9%,100% and 94.6%,respectively.CONCLUSION: The efficacy and safety of colonic stents was demonstrated both as a bridge to surgery and for palliative decompression. In addition,results emphasize the importance of the skills of the endoscopist in colonic stenting.Baris Bayraktar Ibrahim Ali Ozemir Umut Kefeli Gokhan Demiral Julide Sagiro?lu Onur Bayraktar Gupse Adali Alp Ozcelik Osman Baran Tortum 2015World Journal of Gastroenterology2015,21,31:3
19Effect of Helicobacter pylori Eradication on Insulin Resistance, Serum Lipids and Low-Grade Inflammation显示文摘Ramazan Gen Mehmet Demir Hilmi Ataseven 2010Southern Medical Journal2010,,3:3
20Precontoured buttress plate vs reconstruction plate for acetabulum posterior wall fractures: A biomechanical study显示文摘BACKGROUND The purpose of open reduction and internal fixation of acetabulum posterior wall fractures is to restore anatomical structure and stability of the hip joint, in order to start weight bearing as soon as possible and prevent hip arthrosis; restoration of the anatomy should preserve function of the joint as well. Although 'special shaped precontoured plates' have been developed in recent years for surgical treatment of this region, studies comparing the traditional plates with the newly designed precontoured plates are lacking.AIM To evaluate the biomechanical properties of precontoured anatomic buttress and conventional curved reconstruction plates(CCRPs) for posterior wall acetabulum fracture treatment.METHODS Twelve pelvis models were created for testing plate treatment of fracture in the posterior wall of the acetabulum. These 12 pelvis models were used to create 24 hemipelvis models(experimental) by cutting from the sagittal plane and passing over the center of gravity, after which the posterior wall acetabular fractures(of similar type and size) were created. In these experimental models, the right acetabulum was fixed with a 5-hole CCRP, while the left was fixed with a precontoured anatomic buttress plate(PABP). Samples were placed through thetest device and were subjected to static load testing, with a constant testing velocity of 2 mm/min until the load reached 2.3 kN or the acetabular fixation failed. Dynamic tests were also performed with sinusoidal wave load, with a maximal load of 2.3 kN and a load ratio of 0.1.RESULTS The average stiffness values were 460.83 ± 95.47 N/mm for the PABP and 291.99± 118.58 N/mm for the 5-hole CCRP. The precontoured anatomic acetabulum buttress plates had significantly higher rigidity than the CCRPs(P = 0.022). There was a statistically significant difference between the unloaded and 2.3 kN-loaded values of AL(posterosuperior fracture line vertical to the ground surface) and CL(posteroinferior fracture line vertical to the ground surface) parameters for both the PABPs and the 5-hole CCRPs(P = 0.036 and P = 0.045, respectively).According to the static tests, the amount of total displacement was significantly less in the PABPs than in the CCRPs. Comparative analysis of the displacement in the BL(posterior wall fracture line horizontal to the ground) parameter yielded no statistically significant differences between the PABP and the 5-hole CCRPs(P= 0.261).CONCLUSION PABP provides more stable fixation in acetabulum posterior wall fractures than5-hole CCRP, allowing for proximal or distal fracture line screw application without reshaping.Güray Altun Gürsel Saka Teyfik Demir Fatma Kübra Erbay Elibol Mehmet Or?un Polat 2019World Journal of Orthopedics2019,10,5:3
返回顶部 每页显示:
共148页 首页 上一页 第1页 下一页 末页 /148 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费