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| 1 | A gist of gastrointestinal stromal tumors: A review显示文摘Gastrointestinal stromal tumors (GISTs) have been recognized as a biologically distinctive tumor type, different from smooth muscle and neural tumors of the gastrointestinal tract (GIT). They constitute the majority of gastrointestinal mesenchymal tumors of the GIT and are known to be refractory to conventional chemotherapy or radiation. They are defined and diagnosed by the expression of a proto-oncogene protein detected by immunohistochemistry which serves as a crucial diagnostic and therapeutic target. The identification of these mutations has resulted in a better understanding of their oncogenic mechanisms. The remarkable antitumor effects of the molecular inhibitor imatinib have necessitated accurate diagnosis of GIST and their distinction from other gastrointestinal mes-enchymal tumors. Both traditional and minimally invasive surgery are used to remove these tumors with minimal morbidity and excellent perioperative outcomes. The revolutionary use of specific, molecularlytargeted therapies, such as imatinib mesylate, reduces the frequency of disease recurrence when used as an adjuvant following complete resection. Neoadjuvant treatment with these agents appears to stabilize disease in the majority of patients and may reduce the extent of surgical resection required for subsequent complete tumor removal. The important interplay between the molecular genetics of GIST and responses to targeted therapeutics serves as a model for the study of targeted therapies in other solid tumors. This review summarizes our current knowledge and recent advances regarding the histogenesis, pathology, molecular biology, the basis for the novel targeted cancer therapy and current evidence based management of these unique tumors. | Ashwin Rammohan Jeswanth Sathyanesan Kamalakannan Rajendran Anbalagan Pitchaimuthu Senthil-Kumar Perumal UP Srinivasan Ravi Ramasamy Ravichandran Palaniappan Manoharan Govindan | 2013 | World Journal of Gastrointestinal Oncology2013，5，6： | 27 |
| 2 | Antioxidant and hepatoprotective effects of Hypsizygus ulmarius polysaccharide on alcoholic liver injury in rats显示文摘Hypsizygus ulmarius polysaccharide(HUP)is a water-soluble polysaccharide obtained by hot water extraction,followed by precipitation and deproteinization.The characteristics of HUP,antioxidant activity and liver protection against alcohol-induced liver damage were studied.Structural characteristics indicate that the HUP is a pyran-type polysaccharide with a molecular weight of 2076 Da.In antioxidant scavenging assay,HUP showed moderate DMPD radical scavenging activity,cupric ion reducing antioxidant capacity and inhibitory effect against lipid peroxidation in a dose-dependent manner.Regarding in vivo hepatoprotective activity,compared with the ethanol induction group,pre-treatment of low and high doses of HUP signifi cantly reduced the behaviours of serum enzymes,lowered the levels of hepatic oxidative stress markers,restored the levels of biochemical constituents,enhanced the levels of liver and serum enzymatic antioxidants and non-enzymatic antioxidants,and improved the serum lipid levels of alcohol-intoxicated rats.The hepatoprotective effect of HUP was comparable to positive control silymarin.Besides,HUP pre-treatment signifi cantly normalized the histopathological changes induced by ethanol.The results indicate that HUP could be used as a functional food and may protect the biological system from oxidative stress through its antioxidant activity,thus having a signifi cant protective effect on acute alcoholic liver injury. | Sudha Govindan Angu Jayabal Jayasakthi Shanmugam Prasanna Ramani | 2021 | Food Science and Human Wellness2021，10，4： | 6 |
| 3 | Incidental gall bladder cancers:Are they truly incidental?显示文摘AIM: To seek and analyze features suggestive of gallbladder cancer(GBC) on preoperative imaging and intraoperative findings in patients diagnosed as having incidental GBC(IGBC). METHODS: The study was conducted on 79 patients of IGBC managed in our department over a 10-year period(2003-2012). Review of preoperative imaging and operative notes was done to ascertain any suspicion of malignancy-in-retrospect.RESULTS: Of the 79 patients, Ultrasound abdomen showed diffuse thickening, not suspicious of malignancy in 5 patients, and diffuse suspicious thickening was seen in 4 patients. Focal thickening suspicious of malignancy was present in 24 patients. Preoperative computed tomography/magnetic resonance imaging was done in 9 patients for suspicion of malignancy. In 5 patients, dif-ficult Cholecystectomy was encountered due to dense/inflammatory adhesions. Intraoperative findings showed focal thickening of the gallbladder and a gallbladder mass in 9 and 17 patients respectively. On overall analysis, 37 patients had preoperative imaging or intraoperative findings suggestive of malignancy, which was either a missed GBC or an unsuspected/unexpected GBC. In 42(53.2%) patients, there was no evidence suggestive of malignancy and was an unanticipated diagnosis.CONCLUSION: Our study highlights a potential and not-so-rare pitfall of Laparoscopic Cholecystectomy. A greater awareness of this clinical entity along with a high index of suspicion and a low threshold for conversion to open procedure, especially in endemic areas may avert avoidable patient morbidity and mortality. | Ashwin Rammohan Sathya D Cherukuri Jeswanth Sathyanesan Ravichandran Palaniappan Manoharan Govindan | 2014 | World Journal of Gastrointestinal Oncology2014，6，12： | 5 |
| 4 | 表皮生长因子/HER2抑制剂在非小细胞肺癌患者治疗中的作用综述显示文摘晚期非小细胞肺癌(non-small cell lung cancer,NSCLC)仍然是主要的全球健康问题。尽管可逆性表皮生长因子受体(epidermal growth factor receptor,EGFR)酪氨酸激酶抑制剂厄洛替尼可改善复发与再发NSCLC患者的生存期,但也存在明显的局限性,包括仅对少数患者亚群具有临床疗效、生存率较低及产生耐药性。EGFR和HER2的非可逆性抑制剂是临床开发的新型药物,有可能预防并克服第一代EGFR抑制剂的获得性耐药。 | Ramaswamy GOVINDAN 南娟 丁燕 | 2010 | 中国肺癌杂志2010，，4： | 4 |
| 5 | Nonlocal-Means Image Denoising Technique Using Robust M-Estimator显示文摘Edge preserved smoothing techniques have gained importance for the purpose of image processing applications. A good edge preserving filter is given by nonlocal-means filter rather than any other linear model based approaches. This paper explores a different approach of nonlocal-means filter by using robust M-estimator function rather than the exponential function for its weight calculation. Here the filter output at each pixel is the weighted average of pixels with surrounding neighborhoods using the chosen robust M-estimator function. The main direction of this paper is to identify the best robust M-estimator function for nonlocal-means denoising algorithm. In order to speed up the computation, a new patch classification method is followed to eliminate the uncorrelated patches from the weighted averaging process. This patch classification approach compares favorably to existing techniques in respect of quality versus computational time. Validations using standard test images and brain atlas images have been analyzed and the results were compared with the other known methods. It is seen that there is reason to believe that the proposed refined technique has some notable points. | Dinesh J. Peter V. K. Govindan Abraham T. Mathew | 2010 | Journal of Computer Science & Technology2010，25，3： | 4 |
| 6 | A HYBRID APPROACH FOR MINIMIZING MAKESPAN IN PERMUTATION FLOWSHOP SCHEDULING显示文摘这工作求婚为解决安排问题到还原剂的传统的 flowshop 的一条混合途径 makespan (全部的结束时间) 。解决安排问题,决定树(DT ) 的联合并且散布搜索(SS ) 算法被使用。开始, DT 被用来产生然后被给输入 SS 在 makespan 的最佳的解决方案附近获得最佳的 / 的一个种子解决方案。DT 使用了熵功能把给定的问题变换成结构化的格式 / 规则设置了的一棵树。SS 通过多样化提供搜索空间的广泛的调查。DT 和 SS 的优点被用来形成一个混血儿途径。建议算法与为安排的 flowshop 可得到的各种各样的基准数据集被测试。统计结果证明建议方法为解决 flowshop 问题能干、有效。 | Kannan Govindan R'Balasundaram N.Baskar e.Asokan | 2017 | Journal of Systems Science and Systems Engineering2017，26，1： | 3 |
| 7 | Development of an analytical method based on solid-phase extraction and LC-MS/MS for the monitoring of current-use pesticides and their metabolites in human urine显示文摘Pyrethroids,organophosphorus pesticides and fipronil have been listed as priority chemicals in human biomonitoring studies because of their wide use and potential health effects in humans.The determination of 13 pesticides,including pyrethroids(deltamethrin,cypermethrin,permethrin,cyfluthrin,bifenthrin),organophosphorus(chlorpyrifos,chlorpyrifosmethyl,and malathion),fipronil,neonicotinoids(imidacloprid,acetamiprid and thiacloprid)and triazole(prothioconazole),together with 13 corresponding metabolites in human urine samples was achieved by solid-phase extraction and analysis by liquid chromatography coupled to tandem mass spectrometry.All targeted compounds,except malathion dicarboxylic acid,were measured with a mean within-accuracy(n=5)of 71%–114%(RSD:1%–14%)and between-run(n=15)accuracy of 80%–118%(RSD:2%–14%).Limits of quantitation of the targeted analytes ranged from 0.1 to 16 pg/m L.The detection result of urine samples from 25 volunteers indicated that the detection frequencies of 3,5,6-trichloro-2-pyridinol(median:448 pg/m L),6-chloropyridine-3-carboxylic acid(median:193 pg/m L),2-methyl-3-phenylbenzoic acid(median:181 pg/m L),3-phenoxybenzoic acid(median:99 pg/m L),2-isopropyl-6-methyl-4-pyrimidinol(median:77 pg/m L),cyfluthrin(median:59 pg/m L),cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid(cis-DCCA,median:53 pg/m L),trans-DCCA(median:25 pg/m L),prothioconazole(median:21 pg/m L),imidacloprid(median:7 pg/m L),and prothioconazole-desthio(median:1 pg/m L)were>50%.The obtained results show that the validated method is suitable for the human biomonitoring of these currentuse pesticides and their metabolites. | Beibei Gao Giulia Poma Govindan Malarvannan Catalina Dumitrascu Michiel Bastiaensen Minghua Wang Adrian Covaci | 2022 | Journal of Environmental Sciences2022，34，1： | 3 |
| 8 | Implications of the presence of an aberrant right hepatic artery in patients undergoing pancreaticoduodenectomy显示文摘AIM:To analyze the differences in outcomes and the clinical impact following pancreatoduodenectomy(PD)in patients with and without aberrant right hepatic artery(aRHA).METHODS:All patients undergoing PD between January 2008 and December 2012 were divided into two groups,one with aRHA and the other without.These groups were compared to identify differences in the intraoperative variables,the oncological clearance and the postoperative morbidity,mortality and hospital stay.RESULTS:A total of 225 patients underwent PD,of which 43(19.1%)patients were found to have eitheraccessory or replaced right hepatic arteries(aRHA group).The aRHA was preserved in 79%of the patients.There was no significant difference in the intraoperative blood loss but operative time was prolonged,reflecting the complexity of the procedure[420±44(240-540)min vs 480±45(300-600)min,P<0.05)].There were no differences in the incidence of postoperative complications(pancreatic leak,pancreatic fistula,delayed gastric emptying and mortality)and hospital stay.Oncological clearance in the form of positive resection margins[13(7.1%)vs 3(6.9%)]and lymph node yield were also similar in the two groups.CONCLUSION:An aRHA is found in approximately one fifth of patients undergoing PD.Preservation is technically possible in most patients and can increase the operative complexity but does not negatively affect the safety or oncological outcomes of the procedure. | Ashwin Rammohan Ravichandran Palaniappan Anbalagan Pitchaimuthu Kamalakannan Rajendran Senthil Kumar Perumal Kesavan Balaraman Ravi Ramasamy Jeswanth Sathyanesan Manoharan Govindan | 2014 | World Journal of Gastrointestinal Surgery2014，6，1： | 3 |
| 9 | Intracellular biosynthesis of Au and Ag nanoparticles using ethanolic extract of Brassica oleracea L. and studies on their physicochemical and biological properties显示文摘In this present study, we reported broccoli(Brassica oleracea L.) as a potential candidate for the synthesis of gold and silver nanoparticles(NPs) in green chemistry method. The synthesized metal nanoparticles are evaluated their antimicrobial efficacy against different human pathogenic organisms. The physico-chemical properties of gold nanoparticles were analyzed using different analytical techniques such as a UV–Vis spectrophotometer, Field Emission Scanning Electron Microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and a Fourier Transform Infrared spectrophotometer. In addition, gold and silver NP antimicrobial efficacy was checked by disc diffusion assay. UV–Vis color intensity of the nanoparticles was shown at 540 and 450 nm for gold and silver nanoparticles respectively. Higher magnification of the Field Emission Scanning Electron Microscopy image shows the variable morphology of the gold nanoparticles such as spherical, rod and triangular shapes and silver nanoparticles were seen in spherical shapes. The average spherical size of the particles was observed in 24–38 nm for gold and 30–45 nm for silver NPs. X-ray diffraction pattern confirmed the presence of gold nanoparticles and silver nanoparticles which were crystalline in nature. Additionally,the functional metabolites were identified by the Fourier Transform Infrared spectroscopy. IR spectra revealed phenols, alcohols, aldehydes(sugar moieties), vitamins and proteins are present in the broccoli extract which are accountable to synthesize the nanoparticles. The synthesized gold and silver NPs inhibited the growth of the tested bacterial and fungal pathogens at the concentration of 50 μg/m L respectively. In addition, broccoli mediated gold and silver nanoparticles have shown potent antimicrobial activity against human pathogens. | Palaniselvam Kuppusamy Solachuddin J.A.Ichwan Narasimha Reddy Parine Mashitah M.Yusoff Gaanty Pragas Maniam Natanamurugaraj Govindan | 2015 | Journal of Environmental Sciences2015，27，3： | 3 |
| 10 | Molecular characterization and antibacterial effect of endophytic actinomycetes Nocardiopsis sp. GRG1 (KT235640) from brown algae against MDR strains of uropathogens显示文摘Our study is to evaluate the potential bioactive compound of Nocardiopsis sp.GRG1(KT235640)and its antibacterial activity against multi drug resistant strains(MDRS)on urinary tract infections(UTIs).Two brown algae samples were collected and were subjected to isolation of endophytic actinomycetes.100 strains of actinomycetes were isolated from algal samples based on observation of morphology and physiological characters.40 strains were active in antagonistic activity against various clinical pathogens.Among the strains,10 showed better antimicrobial activity against MDRS on UTIs.The secondary metabolite of Nocardiopsis sp.GRG1(KT235640)has showed tremendous antibacterial activity against UTI pathogens compared to other strains.Influence of various growth parameters were used for synthesis of secondary metabolites,such as optimum pH 7,incubation time 5e7 days,temperature(30C),salinity(5%),fructose and mannitol as the suitable carbon and nitrogen sources.At 100 μg/ml concentration MIC of Nocardiopsis sp.GRG1(KT235640)showed highest percentage of inhibition against Proteus mirabilis(85%),and E.coli,Staphylococcus auerues,Psuedomonas aeroginasa,Enterobactor sp and Coagulinase negative staphylococci 78e85%respectively. | Govindan Rajivgandhi Ramachandran Vijayan Marikani Kannan Malairaja Santhanakrishnan Natesan Manoharan | 2016 | Bioactive Materials2016，1，2： | 2 |
| 11 | Nutraceuticals as potential therapeutic agents for colon cancer: a review显示文摘Colon cancer is a world-wide health problem and the second-most dangerous type of cancer,affecting both men and women.The modern diet and lifestyles,with high meat consumption and excessive alcohol use,along with limited physical activity has led to an increasing mortality rate for colon cancer worldwide.As a result,there is a need to develop novel and environmentally benign drug therapies for colon cancer.Currently,nutraceuticals play an increasingly important role in the treatment of various chronic diseases such as colon cancer,diabetes and Alzheimer's disease.Nutraceuticals are derived from various natural sources such as medicinal plants,marine organisms,vegetables and fruits.Nutraceuticals have shown the potential to reduce the risk of colon cancer and slow its progression.These dietary substances target different molecular aspects of colon cancer development.Accordingly,this review briefly discusses the medicinal importance of nutraceuticals and their ability to reduce the risk of colorectal carcinogenesis. | Palaniselvam Kuppusamy Mashitah M.Yusoff Gaanty Pragas Maniam Solachuddin Jauhari Arief Ichwan Ilavenil Soundharrajan Natanamurugaraj Govindan | 2014 | Acta Pharmaceutica Sinica B2014，4，3： | 2 |
| 12 | Directed diffusion for wireless sensor networking显示文摘 | Intanagonwiwat C Govindan R Estrin D | 2002 | ACM/IEEE Transactions on Networking2002，11，1： | 1 |
| 13 | Incidence and types of childhood exolropia: a population_based study显示文摘 | Govindan M Mohney BC Diehl NN | 2005 | Ophthalmology2005，112，： | 1 |
| 14 | Directed diffusion for wireless sensor networking显示文摘 | INTANAGONWIWAT C GOVINDAN R ESTRIN D | 2003 | IEEE/ACM Trans on Networking2003，11，1： | 1 |
| 15 | Directed diffusion for wireless sensor networking显示文摘 | Intanagonwiwat C Govindan R | 2003 | IEEE/ACM Trans on Networking2003，11，1： | 1 |
| 16 | Advantage of a residualizing iodine radiolabel in the therapy of a colon cancer xenograft targeted with an anticarcinoembryonic antigen monoclonal antibody显示文摘 | Stein R Govindan SV Hayes M | 2005 | Clin Cancer Res2005，11，7： | 1 |
| 17 | Changing epidemiology of small-cell lung cancer in the United States over the last 30 years :anal- ysis of the surveillance, epidemiologic ,and end results database 显示文摘 | Govindan R Page N Morgensztern D | 2006 | J Clin Oncol2006，24，28： | 1 |
| 18 | Randomized Phase II Trial of Onartuzumab in Combination With Erlotinib in Patients With Advanced Non–Small-Cell Lung Cancer显示文摘 | David R. Spigel Thomas J. Ervin Rodryg A. Ramlau Davey B. Daniel Jerome H. Goldschmidt George R. Blumenschein Maciej J. Krzakowski Gilles Robinet Benoit Godbert Fabrice Barlesi Ramaswamy Govindan Taral Patel Sergey V. Orlov Michael S. Wertheim Wei Yu Jipi | 2013 | Journal of Clinical Oncology2013，，32： | 1 |
| 19 | Effect of blend ratio,loop length, and yarn linear density on thermal comfortproperties of single jersey knitted fabrics 显示文摘 | CHIDAMBARAM P GOVINDAN R | 2013 | InternationalJournal of Thermophysics2013，34，1： | 1 |
| 20 | Non-cryptographic authentication and identification in wireless networks显示文摘 | ZENG K GOVINDAN K and MOHAPATRA P | 2010 | IEEE Wireless Communications2010，17，5： | 1 |
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