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| 1 | Peripheral primitive neuroectodermal tumor of the kidney presenting with pulmonary tumor embolism: A case report显示文摘Peripheral primitive neuroectodermal tumor(PNET) of the kidney is a rare, aggressive tumor known for its recurrence and metastatic potential. Despite the frequency of venous extension to the renal veins and inferior vena cava, pulmonary tumor embolism at the initial presentation is not common. We report a case of 22-year-old female with PNET of the kidney who presented with tumor embolism in the inferior vena cava(IVC) and bilateral pulmonary artery. The patient underwent surgical resection and histopathological analysis confirmed the presence of tumor within the IVC and pulmonary arteries. The patient received adjuvant chemotherapy and is currently doing well on follow-up. | Sathya Chinnaa Chandan J Das Sanjay Sharma Prabhjot Singh Amlesh Seth Suvendu Purkait Sandeep R Mathur | 2014 | World Journal of Radiology2014，6，10： | 7 |
| 2 | Efficacy of pancreatoscopy for pancreatic duct stones:A systematic review and meta-analysis显示文摘BACKGROUND Pancreatic duct stones can lead to significant abdominal pain for patients.Per oral pancreatoscopy(POP)-guided intracorporal lithotripsy is being increasingly used for the management of main pancreatic duct calculi(PDC)in chronic pancreatitis.POP uses two techniques:Electrohydraulic lithotripsy(EHL)and laser lithotripsy(LL).Data on the safety and efficacy are limited for this procedure.We performed a systematic review and meta-analysis with a primary aim to calculate the pooled technical and clinical success rates of POP.The secondary aim was to assess pooled rates of technical success,clinical success for the two individual techniques,and adverse event rates.AIM To perform a systematic review and meta-analysis of POP,EHL and LL for management of PDC in chronic pancreatitis.METHODS We conducted a comprehensive search of multiple electronic databases and conference proceedings including PubMed,EMBASE,Cochrane,Google Scholar and Web of Science databases(from 1999 to October 2019)to identify studies with patient age greater than 17 and any gender that reported on outcomes of POP,EHL and LL.The primary outcome assessed involved the pooled technical success and clinical success rate of POP.The secondary outcome included the pooled technical success and clinical success rate for EHL and LL.We also assessed the pooled rate of adverse events for POP,EHL and LL including a subgroup analysis for the rate of adverse event subtypes for POP:Hemorrhage,post-endoscopic retrograde cholangiopancreatography pancreatitis(PEP),perforation,abdominal pain,fever and infections.Technical success was defined as the rate of clearing pancreatic duct stones and clinical success as the improvement in pain.Randomeffects model was used for analysis.Heterogeneity between study-specific estimates was calculated using the Cochran Q statistical test and I2 statistics.Publication bias was ascertained,qualitatively by visual inspection of funnel plot and quantitatively by the Egger test.RESULTS A total of 16 studies including 383 patients met the inclusion criteria.The technical success rate of POP was 76.4%(95%CI:65.9-84.5;I2=64%)and clinical success rate was 76.8%(95%CI:65.2-85.4;I2=66%).The technical success rate of EHL was 70.3%(95%CI:57.8-80.3;I2=36%)and clinical success rate of EHL was 66.5%(95%CI:55.2-76.2;I2=19%).The technical success rate of LL was 89.3%(95%CI:70.5-96.7;I2=70%)and clinical success rate of LL was 88.2%(95%CI:66.4-96.6;I2=77%).The incidence of pooled adverse events for POP was 14.9%(95%CI:9.2-23.2;I2=49%),for EHL was 11.2%(95%CI:5.9-20.3;I2=15%)and for LL was 13.1%(95%CI:6.3-25.4;I2=31%).Subgroup analysis of adverse events showed rates of PEP at 7%(95%CI:3.5-13.6;I2=38%),fever at 3.7%(95%CI:2-6.9;I2=0),abdominal pain at 4.7%(95%CI:2.7-7.8;I2=0),perforation at 4.3%(95%CI:2.1-8.4;I2=0),hemorrhage at 3.4%(95%CI:1.7-6.6;I2=0)and no mortality.There was evidence of publication bias based on funnel plot analysis and Egger’s test.CONCLUSION Our study highlights the high technical and clinical success rates for POP,EHL and LL.POP-guided lithotripsy could be a viable option for management of chronic pancreatitis with PDC. | Syed M Saghir Harmeet S Mashiana Babu P Mohan Banreet S Dhindsa Amaninder Dhaliwal Saurabh Chandan Neil Bhogal Ishfaq Bhat Shailender Singh Douglas G Adler | 2020 | World Journal of Gastroenterology2020，26，34： | 5 |
| 3 | Newly developed Fe3O4–Cr2O3 magnetic nanocomposite for photocatalytic decomposition of 4-chlorophenol in water显示文摘Chlorophenols, typically 4-chlorophenols are highly toxic and non-biodegradable organic contaminants which pose serious threat to the environment, particularly when released into aqueous medium. The removal of these pollutants by efficient method has received worldwide concern in recent past. A new Fe_3O_4–Cr_2O_3 magnetic nanocomposite was synthesized by wet chemical method under ultrasonic irradiation. Microstructure and morphology of the nanocomposite were characterized by powder X-ray diffraction(XRD),Fourier transform infrared(FT-IR), and a transmission electron microscope(TEM). Magnetic and optical properties were studied by a vibrating sample magnetometer(VSM) and an ultraviolet–visible(UV–Vis) spectrophotometer respectively. The magnetic nanocomposite(MNC) was used as photocatalyst for effective decomposition of 4-chlorophenol in water under ultraviolet(UV) irradiation. | Khoirakpam Kesho Singh Kula Kamal Senapati Chandan Borgohain Kanak Chandra Sarma | 2017 | Journal of Environmental Sciences2017，29，2： | 2 |
| 4 | In vivo hepatoprotective activity of active fraction from ethanolic extract of Eclipta alba leaves 显示文摘 | Singh B Saxena A K Chandan B K | 2001 | Indian J Physiol Pharmacol2001，45，4： | 1 |
| 5 | Fast and accurate method for high order Zernike moments computation显示文摘 | Chandan Singh Rahul Upneja | 2012 | Applied Mathematics and Computation2012，218，： | 1 |
| 6 | Accurate calculation of Zernike moments显示文摘 | Chandan Singh Ekta Walia Rahul Upneja | 2013 | Information Sciences2013，233，： | 1 |
| 7 | Fixed Points in a Hopfield Model with Random Asymmetric Interactions 显示文摘 | Zhang Cheng-xiang Chandan Dasgupta | 1995 | Phys Rev1995，52，： | 1 |
| 8 | Retrieval Properties of a Hopfield Model with Random Asymmetric Interactions 显示文摘 | Chandan Dasgupta Singh M P | 2000 | Neural Computation2000，12，： | 1 |
| 9 | Sertoli–Leydig cell tumor: A rare ovarian neoplasm. Case report and review of literature显示文摘 | Poonam Sachdeva Raksha Arora Chandan Dubey Astha Sukhija Mridula Daga Deepak Kumar Singh | 2008 | Gynecological Endocrinology2008，，4： | 1 |
| 10 | Hough transform based fast skew detection and accurate skew correction methods 显示文摘 | Chandan Singh Nitin Bhatia Amandeep Kaur | 2008 | Patten Recognition2008，41，12： | 1 |
| 11 | Hough transform based fast skew detection and accurate skew correction methods显示文摘 | Chandan Singh Nitin Bhatia Amandeep Raur | 2008 | Pattern Recognition2008，41，： | 1 |
| 12 | Numbness over the distri-bution of trigeminal nerve-trigeminal trophic syndrome or viralneuritis: a diagnostic dilemma 显示文摘 | Patil P Chandan S Singh V | 2013 | J Craniofac Surg2013，24，4： | 1 |
| 13 | Geometrically Inva-riant and High Capacity Image Watermarking Scheme Using Accurate Radial Transform显示文摘 | SINGH Chandan RANADE S K | 2013 | Optics and Laser Technology2013，54，30： | 1 |
| 14 | Hepatoprotective effect of ethanolic extract of Eclipta alba on experimental Liver damage in dats and mice 显示文摘 | Singh B Saxena A K Chandan B K | 1993 | Phytotherapy Research1993，7，： | 1 |
| 15 | Optimization of Groundwater Level Monitoring Network Using GIS-based Geostatistical Method and Multi-parameter Analysis:A Case Study in Wainganga Sub-basin,India显示文摘Groundwater is one of the most important resources, its monitoring and optimized management has now become the priority to satisfy the demand of rapidly increasing population. In many developing countries, optimized groundwater level monitoring networks are rarely designed to build up a strong groundwater level data base, and to reduce operation time and cost. The paper presents application of geostatistical method to optimize existing network of observation wells for 18 sub-watersheds within the Wainganga Sub-basin located in the central part of India. The average groundwater level fluctuation(GWLF) from 37 observation wells is compared with parameters like lineament density, recharge, density of irrigation wells, land use and hydrogeology(LiRDLH) of Wainganga Sub-basin and analyzed stochastically in Geographic Information System(GIS) environment using simple, ordinary, disjunctive and universal kriging methods. Semivariogram analyses have been performed separately for all kriging methods to fit the best theoretical model with experimental model. Results from gaussian, spherical, exponential and circular theoretical models were compared with those of experimental models obtained from the groundwater level data. Spatial analyses conclude that the exponential semivariogram model obtained from ordinary kriging gives the best fit model. Study demonstrates that ordinary kriging gives the optimal solution and additional number of observation wells can be added utilizing the error variance for optimal design of groundwater level monitoring networks. This study describes the use of Geostatistics methods in GIS to predict the groundwater level and upgrade groundwater level monitoring networks from the randomly distributed observation wells considering multiple parameters such as GWLF and LiRDLH. The method proposed in the present study is observed to be an efficient method for selecting observation well locations in a complex geological set up. The study concludes that minimum 82 wells are required for proper monitoring of groundwater level in the study area. | Kumar Singh CHANDAN Bhaskar Katpatal YASHWANT | 2017 | Chinese Geographical Science2017，27，2： | 1 |
| 16 | Hepatoprotective activity of verbenalin on experimental liver damage in rodents 显示文摘 | Singh B Saxena A Chandan BK | 1998 | Fitoterapia1998，69，2： | 1 |
| 17 | Actions of some flavonoids on specific and non-specific immune mechanisms显示文摘 | ML Sharma B Singh BK Chandan | 1996 | Phytomedicine1996，3，2： | 1 |
| 18 | Hough transform based fast skew detection and accurate skew correction methods显示文摘 | Chandan Singh Nitin Bhatia Amandeep Raur | 2008 | Pattern Recognition2008，41，： | 1 |
| 19 | Removal of metal ions by means of solar oxidation processes based on pH, TiO2 and oxidants显示文摘 | Rubina Chaudhary Chandan Singh | 2014 | Desalination and Water Treatment (-)2014，，7： | 1 |
| 20 | Hough transform based fast skew detection and accurate skew correction methods显示文摘 | CHANDAN SINGH NITIN BHATIA AMANDEEP KAUR | 2008 | Pattern Recognition2008，41，12： | 1 |
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