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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 | Association of serum lipid levels with diabetic retinopathy显示文摘AIM: To assess the association between serum lipids and diabetic retinopathy (DR). · METHODS: Sixty -one diabetic patients without retinopathy (NDR), 55 diabetic patients with non - proliferative retinopathy (NPDR) and 75 diabetic patients with proliferative retinopathy (PDR) according to ETDRS grading scale were enrolled in this study. Total cholesterol, high density lipoprotein (HDL), low density lipoprotein (LDL), very low density lipoprotein (VLDL) and triglyceride values were compared between the groups. ·RESULTS: The groups were well-balanced in terms of age and gender (P =0.071, P =0.265 respectively). The mean HbA1c values were significantly lower in NDR group than the NPDR and PDR groups(P =0.004, P =0.009 respectively). Mean total cholesterol, triglyceride, LDL, HDL and VLDL levels were not significantly different between the groups (P =0.693, P =0.774, P =0.644, P = 0.910 and P =0.967 respectively, one way ANOVA). Mean total cholesterol, triglyceride, LDL, HDL and VLDL levels were not significantly different between the patients with ME and patients without ME(P =0.622, P =0.113, P =0.955, P =0.735 and P =0.490 respectively, t -test). The mean blood glucose significantly correlated with total cholesterol (r =0.173, P =0.017) and LDL (r =0.190, P = 0.008). The mean HbA1c significantly correlated with total cholesterol (r =0.158, P =0.030) and triglyceride (r =0.148, P =0.042). ·CONCLUSION: Serum lipid levels were not significantly associated with the severity of DR or existence of ME despite the significant correlation between the mean blood glucose, HbA1c and total cholesterol. | Ebru Nevin Cetin Yunus Bulgu Seyfullah Ozdemir Senay Topsakal Fulya Akln Hulya Aybek Cem Ylldlrlm | 2013 | International Journal of Ophthalmology(English edition)2013,6,3: | 14 |
| 3 | Management of granulomatous lobular mastitis: an international multidisciplinary consensus(2021 edition)显示文摘Granulomatous lobular mastitis(GLM) is a rare and chronic benign inflammatory disease of the breast. Difficulties exist in the management of GLM for many front-line surgeons and medical specialists who care for patients with inflammatory disorders of the breast. This consensus is summarized to establish evidence-based recommendations for the management of GLM. Literature was reviewed using PubMed from January 1, 1971 to July 31, 2020. Sixty-six international experienced multidisciplinary experts from 11 countries or regions were invited to review the evidence.Levels of evidence were determined using the American College of Physicians grading system, and recommendations were discussed until consensus. Experts discussed and concluded 30 recommendations on historical definitions,etiology and predisposing factors, diagnosis criteria, treatment, clinical stages, relapse and recurrence of GLM. GLM was recommended as a widely accepted definition. In addition, this consensus introduced a new clinical stages and management algorithm for GLM to provide individual treatment strategies. In conclusion, diagnosis of GLM depends on a combination of history, clinical manifestations, imaging examinations, laboratory examinations and pathology.The approach to treatment of GLM should be applied according to the different clinical stage of GLM. This evidencebased consensus would be valuable to assist front-line surgeons and medical specialists in the optimal management of GLM. | Qian-Qian Yuan Shu-Yuan Xiao Omar Farouk Yu-Tang Du Fereshte Sheybani Qing Ting Tan Sami Akbulut Kenan Cetin Afsaneh Alikhassi Rami Jalal Yaghan Irmak Durur-Subasi Fatih Altintoprak Tae Ik Eom Fatih Alper Mustafa Hasbahceci David Martínez-Ramos Pelin Seher Oztekin Ava Kwong Cedric W.Pluguez-Turul Kirstyn EBrownson Shirish Chandanwale Mehran Habib Liu-Yi Lan Rui Zhou Xian-Tao Zeng Jiao Bai Jun-Wen Bai Qiong-Rong Chen Xing Chen Xiao-Ming Zha Wen-Jie Dai Zhi-Jun Dai Qin-Yu Feng Qing-Jun Gao Run-Fang Gao Bao-San Han Jin-Xuan Hou Wei Hou Hai-Ying Liao Hong Luo Zheng-Ren Liu Jing-Hua Lu Bin Luo Xiao-Peng Ma Jun Qian Jian-Yong Qin Wei Wei Gang Wei Li-Ying Xu Hui-Chao Xue Hua-Wei Yang Wei-Ge Yang Chao-Jie Zhang Fan Zhang Guan-Xin Zhang Shao-Kun Zhang Shu-Qun Zhang Ye-Qiang Zhang Yue-Peng Zhang Sheng-Chu Zhang Dai-Wei Zhao Xiang-Min Zheng Le-Wei Zheng Gao-Ran Xu Wen-Bo Zhou Gao-Song Wu | 2022 | Military Medical Research2022,9,4: | 13 |
| 4 | 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 |
| 5 | Levels of matrix metalloproteinase-1 and tissue inhibitors of metalloproteinase-1 in gastric cancer显示文摘AIM:To evaluate the levels of preoperative serum matrix metalloproteinase-1 (MMP-1) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in gastric cancer.METHODS:One hundred gastric cancer patients who underwent gastrectomy were enrolled in this study.The serum concentrations of MMP-1 and TIMP-1 in these patients and in fifty healthy controls were determined using an enzyme-linked immunosorbent assay.RESULTS:Higher serum MMP-1 and TIMP-1 levels were observed in patients than in controls (P < 0.001).Serum MMP-1 and TIMP-1 levels were positively associated with morphological appearance,tumor size,depth of wall invasion,lymph node metastasis,liver metastasis,perineural invasion,and pathological stage.They were not significantly associated with age,gender,tumor location,or histological type.CONCLUSION:Increased MMP-1 and TIMP-1 were associated with gastric cancer.Although these markers are not good markers for diagnosis,these markers show in advanced gastric cancer. | Ozgur Kemik Ahu Sarbay Kemik Aziz Sümer Ahmet Cumhur Dulger Mine Adas Huseyin Begenik Ismail Hasirci Ozkan Yilmaz Sevim Purisa Erol Kisli Sefa Tuzun Cetin Kotan | 2011 | World Journal of Gastroenterology2011,17,16: | 10 |
| 6 | Current adjuvant treatment modalities for gastric cancer:From history to the future显示文摘The discrepancy between the surgical technique and the type of adjuvant chemotherapy used in clinical trials and patient outcomes in terms of overall survival rates has led to the generation of different adjuvant treatment protocols in distinct parts of the world.The adjuvant treatment recommendation is generally chemoradiotherapy in the United States,perioperative chemotherapy in the United Kingdom and parts of Europe,and chemotherapy in Asia.These options mainly rely on the United States Intergroup-0116,United Kingdom British Medical Research Council Adjuvant Gastric Infusional Chemotherapy,and the Asian Adjuvant Chemotherapy Trial of S-1 for Gastric Cancer and Capecitabine and Oxaliplatin Adjuvant Study in Stomach Cancer trials.However,the benefits were evident for only certain patients,which were not very homogeneous regarding the type of surgery,chemotherapy regimens,and stage of disease.Whether the dissimilarities in survival are attributable to surgical technique or intrinsic biological differences is a subject of debate.Regardless of the extent of surgery,multimodal therapy may offer modest survival advantage at least for diseases with lymph node involvement.Moreover,in the era of individualized treatment for most of the other cancer types,identification of special subgroups comprising those who will derive more or no benefit from adjuvant therapy merits further investigation.The aim of this review is to reveal the historical evolution and future reflections of adjuvant treatment modalities for resected gastric cancer patients. | Leyla Kilic Cetin Ordu Ibrahim Yildiz Fatma Sen Serkan Keskin Rumeysa Ciftci Kezban Nur Pilanci | 2016 | World Journal of Gastrointestinal Oncology2016,8,5: | 9 |
| 7 | Clinical presentation and management of Fasciola hepatica infection:Single-center experience显示文摘AIM:To identify the characteristic clinical,laboratory and radiological findings and response to treatment in patients with fascioliasis.METHODS:Patients who were diagnosed with Fasciola hepatica infection were included in this prospective study.Initial clinical,laboratory and radiological findings were recorded.All patients were followed until a complete response was achieved or for 6 mo after treatment discontinuation.RESULTS:Fasciola hepatica infection was diagnosed in 30 patients(24 females;mean age:42.6 years) between January 2008 and February 2011.Twentytwo(73%) patients had hepatic phase fascioliasis,5 patients had biliary phase,and 3 patients had biliary phase associated with acute pancreatitis.Of the 8 patients with biliary phase fascioliasis,2 patients displayed features that overlapped with both hepatic and biliary phase.Abdominal pain and right upper abdominal tenderness were the most prominent signs and symptoms in all patients.Eosinophilia was the most prominent laboratory abnormality in both patients with hepatic and biliary phase(100% and 50%,respectively).Multiple nodular lesions like micro-abscesses on abdominal computerized tomography were the main radiological findings in patients with hepatic phase.Small linear filling defects in the distal choledochus were the main endoscopic retrograde cholangiopancreatography(ERCP) findings in patients with biliary phase.Patients with hepatic phase were treated with triclabendazole alone,and patients with biliary phase were treated with triclabendazole and had live Fasciola hepatica extracted from the bile ducts during ERCP.CONCLUSION:Fasciola hepatica infection should be considered in the differential diagnosis of patients with hepatic or biliary disease and/or acute pancreatitis associated with eosinophilia. | Muhsin Kaya Remzi Bestas Sedat Cetin | 2011 | World Journal of Gastroenterology2011,17,44: | 6 |
| 8 | 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 |
| 9 | Handheld high-throughput plasmonic biosensor using computational on-chip imaging显示文摘We demonstrate a handheld on-chip biosensing technology that employs plasmonic microarrays coupled with a lens-free computational imaging system towards multiplexed and high-throughput screening of biomolecular interactions for point-of-care applications and resource-limited settings.This lightweight and field-portable biosensing device,weighing 60 g and 7.5 cm tall,utilizes a compact optoelectronic sensor array to record the diffraction patterns of plasmonic nanostructures under uniform illumination by a single-light emitting diode tuned to the plasmonic mode of the nanoapertures.Employing a sensitive plasmonic array design that is combined with lens-free computational imaging,we demonstrate label-free and quantitative detection of biomolecules with a protein layer thickness down to 3 nm.Integrating large-scale plasmonic microarrays,our on-chip imaging platform enables simultaneous detection of protein mono-and bilayers on the same platform over a wide range of biomolecule concentrations.In this handheld device,we also employ an iterative phase retrieval-based image reconstruction method,which offers the ability to digitally image a highly multiplexed array of sensors on the same plasmonic chip,making this approach especially suitable for high-throughput diagnostic applications in field settings. | Arif E Cetin Ahmet F Coskun Betty C Galarreta Min Huang David Herman Aydogan Ozcan Hatice Altug | 2014 | Light(Science & Applications)2014,3,1: | 6 |
| 10 | Sentinel lymph node biopsy for gastric cancer:Where do we stand?显示文摘Development of sentinel node navigation surgery (SNNS) and advances in minimally invasive surgical techniques have greatly shaped the modern day approach to gastric cancer surgery.An extensive body of knowledge now exists on this type of clinical application but is principally composed of single institute studies.Certain dye tracers,such as isosulfan blue or patent blue violet,have been widely utilized with a notable amount of success;however,indocyanine green is gaining popularity.The double tracer method,a synchronized use of dye and radio-isotope tracers,appears to be superior to any of the dyes alone.In the meantime,the concepts of infrared ray electronic endoscopy,florescence imaging,nanoparticles and near-infrared technology are emerging as particularly promising alternative techniques.Hematoxylin and eosin staining remains the main method for the detection of sentinel lymph node (SLN) metastases.Several specialized centers have begun to employ immunohistochemical staining for this type of clinical analysis but the equipment costs involving the associated ultra-rapid processing systems is limiting its widespread application.Laparoscopic function-preserving resection of primary tumor from the stomach in conjunction with lymphatic basin dissection navigated by SLN identification represents the current paramount of SNNS for early gastric cancer.Patients with cT3 stage or higher still require standard D 2 dissection. | Mehmet Fatih Can Gokhan Yagci Sadettin Cetiner | 2011 | World Journal of Gastrointestinal Surgery2011,3,9: | 4 |
| 11 | Experimental investigation of cutting parameters in machining of 100Cr6 with tangential turn-milling method显示文摘 | Vedat Savas Cetin Ozay Hasan Ballikaya | 2016 | Advances in Manufacturing2016,4,1: | 4 |
| 12 | 鼓窦通气管,复发性分泌性中耳炎的新疗法及其远期随访结果显示文摘目的:评价鼓窦通气管(MAVT)治疗复发性分泌性中耳炎的疗效。方法:治疗组是20例经过至少2次鼓膜置管未愈的分泌性中耳炎患者,接受MAVT治疗,随访至少3年:对照组是10例经过至少2次鼓膜置管未愈的分泌性中耳炎患者,不接受MAVT治疗而再次鼓膜置管。结果:治疗组20例患者24耳接受MAVT,1例鼓膜粘连和9例鼓膜内陷术后恢复正常;对照组10例患者13耳再次鼓膜置管,有2例鼓膜内陷恢复。 | Kutluhan A Tarlak B Cetin H3 陈阳 | 2015 | 中国医学文摘(耳鼻咽喉科学)2015,30,4: | 4 |
| 13 | Anti-pancreatic antibody in Turkish patients with inflammatory bowel disease and first-degree relatives显示文摘AIM: To identify the role of anti-pancreatic antibody (PAB) in the diagnosis of inflammatory bowel diseases (IBD) among Turkish patients, and its frequency in firstdegree relatives.METHODS: PAB and anti-Saccharomyces cerevisiae (ASCA) were examined in serum samples of 214 subjects including patients with Crohn's disease (CD, n = 64), ulcerative colitis (UC, n = 63), first-degree relatives of patients with CD (n = 25), first-degree relatives of patients with UC (n = 28),and a control group with gastrointestinal symptoms other than (IBD) (n = 34) by indirect immunofluorescence Positivity of PAB and ASCA was compared in terms of Vienna classification, disease activity and medications used.RESULTS: In terms of PAB positivity, no difference was found between patients with CD (14.1%) and UC (7.9%) however, significant difference was observed between patients with CD and subjects in the control group (P < 0.05). No difference was found between patients with CD and their relatives in terms of ASCA positivity, whereas a significant difference was found between other groups (P < 0.001). Compared to ASCA, the sensitivity of the PAB was 19% (7/37), its specificity was 93% (25/27), positive predictive value was 77% (7/9) and negative predictive value was 45% (25/55). ASCA was found with significantly higher prevalence in patients with CD activity index > 150 (P < 0.05).CONCLUSION: PAB is valuable in the diagnosis of IBD rather than CD, but cannot be used alone for diagnostic purposes. PAB is not superior to ASCA in CD diagnosis and in detecting CD among relatives of patients with CD. | Huseyin Demirsoy Kamil Ozdil Ozdal Ersoy Besir Kesici Cetin Karaca Canan Alkim Nihat Akbayir Levent Kamil Erdem Mehmet Derya Onuk Hulya Tugrul Beyzadeoglu | 2010 | World Journal of Gastroenterology2010,16,45: | 3 |
| 14 | Coronary embolism in a patient with mitral valve prosthesis:successful management with tirofiban and half-dose tissue-type plasminogen activator显示文摘Coronary embolism has been considered as a rarecause of coronary occlusion.Prosthetic heart valve isan infrequent cause of this condition.The exact incidenceof coronary embolization in patients with prosthetic heartvalves is not well known.Furthermore,the effectivetreatment and management of coronary emboli in | Yusuf Atmaca Cagdas Ozdol Cetin Erol | 2007 | Chinese Medical Journal2007,,24: | 3 |
| 15 | Accuracy of EUS in the evaluation of small gastric subepithelial lesions显示文摘 | Cetin Karaca Brian G. Turner Sevdenur Cizginer David Forcione William Brugge | 2010 | Gastrointestinal Endoscopy2010,,4: | 3 |
| 16 | Neoadjuvant hyperfractionated accelerated radiotherapy plus concomitant 5-fluorouracil infusion in locally advanced rectal cancer: A phase Ⅱ study显示文摘AIM To evaluate the efficacy and tolerability of neoadjuvant hyperfractionated accelerated radiotherapy(HART)and concurrent chemotherapy in patients with locally advanced infraperitoneal rectal cancer. METHODS A total of 30 patients with histopathologically confirmed T2-3/N0+ infraperitoneal adenocarcinoma of rectum cancer patients received preoperative 42 Gy/1.5 Gy/18 days/bid radiotherapy and continuous infusion of 5-fluorouracil(325 mg/m^2). All patients were operated 4-8 wk after neoadjuvant concomitant therapy. RESULTS In the early phase of treatment, 6 patients had grade Ⅲ-Ⅳ gastrointestinal toxicity, 2 patients had grade Ⅲ-Ⅳ hematologic toxicity, and 1 patient had grade Ⅴ toxicity due to postoperative sepsis during chemotherapy. Only 1 patient had radiotherapy-related late side effects, i.e., grade Ⅳ tenesmus. Complete pathological response was achieved in 6 patients(21%), while near-complete pathological response was obtained in 9(31%). After a median follow-up period of 60 mo, the local tumor control rate was 96.6%. In 13 patients, distant metastasis occurred. Disease-free survival rates at 2 and 5 years were 63.3% and 53%, and corresponding overall survival rates were 70% and 53.1%, respectively.CONCLUSION Although it has excellent local control and complete pathological response rates, neoadjuvant HART concurrent chemotherapy appears to not be a feasible treatment regimen in locally advanced rectal cancer, having high perioperative complication and intolerable side effects. Effects of reduced 5-fluorouracil dose or omission of chemotherapy with the aim of reducing toxicity may be examined in further studies. | Zeynep Gural Sezer Saglam Serap Yucel Esra Kaytan-Saglam Oktar Asoglu Cetin Ordu Hediye Acun Rasul Sharifov Semen Onder Ahmet Kizir Ethem N Oral | 2018 | World Journal of Gastrointestinal Oncology2018,10,1: | 3 |
| 17 | E-cadherin:a differentiation marker in thyroid malignancies显示文摘 | Brabant G Hoang-Vu C Cetin Y | | 0,,20: | 2 |
| 18 | Terry's nail: an overlooked physical finding incirrhosis显示文摘The Editor welcomes submissions for possible publication in the Letters to the Editor section.Letters commenting on an article published in the Journal or other interesting pieces will be considered if they are received within 6 weeks of the time the article was published. | Bulent Baran Ozlem Mutluay Soyer Cetin Karaca | 2013 | Hepatobiliary & Pancreatic Diseases International2013,12,1: | 2 |
| 19 | 多位点生物杀虫毒素BtA形成的HPLC分析显示文摘基于多位点生物杀虫毒素理论和生物耦合技术,研制生物杀虫毒素BtA,为新生物农药的开发提供了一种新思路、新方法和新手段。将苏云金芽孢杆菌(B.t.)晶体进行酶解改造,形成带末端氨基的原毒素;将阿维菌素的羟基进行激活、衍生化,形成带羧基的阿维菌素衍生物(Abamectin-COONa);再利用氨基-羧基偶联剂(EDC)进行两种生物毒素的生物耦合。利用反相液相色谱(HPLC)检测不同反应时间的BtA生物耦合体系,以确定生物耦合反应的发生;通过反应底物两两组合的分析比较,识别生物耦合产物BtA生成的色谱特征,分析生物耦合产物---多位点生物杀虫毒素BtA的产生过程。 | 刘波 朱育菁 Cetin Sengonca 冒乃和 | 2005 | 中国农业科学2005,38,11: | 2 |
| 20 | 生物杀虫剂BtA对结球甘蓝地害虫及其捕食性天敌生态位变动的影响(英文)显示文摘2001年在中国东南部福州地区进行生物杀虫剂BtA和化学杀虫剂灭多威对结球甘蓝地捕食性天敌及其猎物对象害虫空间生态位宽度和重叠的影响的研究。研究对象捕食性天敌包括七星瓢虫(CoccinellaseptempunctataL.)和草间小黑蛛[Erigonidiumgraminicola(Sundvall)],猎物对象害虫包括小菜蛾[Plutellaxylostella(L.)]、菜粉蝶[Pierisrapae(L.)]、菜蚜[Brevicorynebrassicae(L.)]、斑潜蝇(LiriomyzasativaeBlanch.)、黄条跳甲(PhyllotretavittataFabric.)。研究结果表明,天敌害虫比在BtA处理区为0.3950,在灭多威处理区为0.2018,说明BtA对被测捕食性天敌的影响小于灭多威。捕食性天敌的空间生态位宽度变动范围为2.81~4.44,BtA和灭多威对捕食性天敌空间生态位宽度变化影响不显著。被测害虫空间生态位宽度变动范围为1.42~5.86,BtA和灭多威对被测害虫空间生态位宽度变化影响极显著。这种变化改变了捕食性天敌与害虫之间在空间范围内的数量关系,进而影响到它们之间的空间生态位重叠。天敌和害虫之间空间生态位重叠研究表明,重叠值的变动范围为0.10%~87.78%。在BtA处理区,草间小黑蛛与小菜蛾的空间生态位重叠为78.46%,七星瓢虫与菜蚜的空间生态位重叠为58.33%,而在灭多威处理区,以上两个指标分别为38.71%和18.59%。 | 刘波 Cetin Sengonca | 2003 | 福建农业学报2003,18,2: | 2 |