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| 1 | How good is endoscopic ultrasound for TNM staging of gastric cancers? A meta-analysis and systematic review显示文摘AIM: To evaluate the accuracy of endoscopic ultrasound (EUS) for staging of gastric cancers. METHODS: Only EUS studies confirmed by surgery were selected. Only studies from which a 2 × 2 table could be constructed for true positive, false negative, false positive and true negative values were included. Articles were searched in Medline, Pubmed, Ovid journals, Cumulative index for nursing & allied health literature, International pharmaceutical abstracts, old Medline, Medline nonindexed citations, and Cochrane control trial registry. Two reviewers independently searched and extracted data. The differences were resolved by mutual agreement. 2 × 2 tables were constructed with the data extracted from each study. Meta-analysis for the accuracy of EUS was analyzed by calculating pooled estimates of sensitivity, specifi city, likelihood ratios, and diagnostic odds ratio. Pooling was conducted by both the Mantel-Haenszel method (fi xed effects model) and DerSimonian Laird method (random effects model). The heterogeneity of studies was tested using Cochran's Q test based upon inverse variance weights. RESULTS: Initial search identified 1620 reference articles and of these, 376 relevant articles were selected and reviewed. Twenty-two studies (n = 1896) which met the inclusion criteria were included in this analysis. Pooled sensitivity of T1 was 88.1% (95% CI: 84.5-91.1) and T2 was 82.3% (95% CI: 78.2-86.0). For T3, pooled sensitivity was 89.7% (95% CI: 87.1-92.0). T4 hada pooled sensitivity of 99.2% (95% CI: 97.1-99.9). For nodal staging, the pooled sensitivity for N1 was 58.2% (95% CI: 53.5-62.8) and N2 was 64.9% (95% CI: 60.8-68.8). Pooled sensitivity to diagnose distant metastasis was 73.2% (95% CI: 63.2-81.7). The P for chi-squared heterogeneity for all the pooled accuracy estimates was > 0.10. CONCLUSION: EUS results are more accurate with advanced disease than early disease. If EUS diagnoses advanced disease, such as T4 disease, the patient is 500 times more likely to have true anatomic stage of T4 disease. | Srinivas Reddy Puli Jyotsna Batapati Krishna Reddy Matthew L Bechtold Mainor R Antillon Jamal A Ibdah | 2008 | World Journal of Gastroenterology2008,14,25: | 33 |
| 2 | A matched-pair analysis of laparoscopic versus open pancreaticoduodenectomy: oncological outcomes using Leeds Pathology Protocol显示文摘BACKGROUND: Laparoscopic pancreaticoduodenectomy(LPD)is a safe procedure. Oncological safety of LPD is still a matter for debate. This study aimed to compare the oncological outcomes,in terms of adequacy of resection and recurrence rate following LPD and open pancreaticoduodenectomy(OPD).METHODS: Between November 2005 and April 2009, 12LPDs(9 ampullary and 3 distal common bile duct tumors)were performed. A cohort of 12 OPDs were matched for age,gender, body mass index(BMI) and American Society of Anesthesiologists(ASA) score and tumor site.RESULTS: Mean tumor size LPD vs OPD(19.8 vs 19.2 mm,P=0.870). R0 resection was achieved in 9 LPD vs 8 OPD(P=1.000). The mean number of metastatic lymph nodes and total number resected for LPD vs OPD were 1.1 vs 2.1(P=0.140)and 20.7 vs 18.5(P=0.534) respectively. Clavien complications grade I/II(5 vs 8), III/IV(2 vs 6) and pancreatic leak(2 vs 1)were statistically not significant(LPD vs OPD). The mean high dependency unit(HDU) stay was longer in OPD(3.7 vs 1.4 days,P<0.001). There were 2 recurrences each in LPD and OPD(logrank,P=0.983). Overall mortality for LPD vs OPD was 3 vs 6(log-rank, P=0.283) and recurrence-related mortality was 2 vs 1.There was one death within 30 days in the OPD group secondary to severe sepsis and none in the LPD group.CONCLUSIONS: Compared to open procedure, LPD achieved a similar rate of R0 resection, lymph node harvest and longterm recurrence for tumors less than 2 cm. Though technically challenging, LPD is safe and does not compromise oncological outcome. | Abdul R Hakeem Caroline S Verbeke Alison Cairns Amer Aldouri Andrew M Smith Krishna V Menon | 2014 | Hepatobiliary & Pancreatic Diseases International2014,13,4: | 24 |
| 3 | Endoscopic ultrasound:It’s accuracy in evaluating mediastinal lymphadenopathy? A meta-analysis and systematic review显示文摘AIM:To evaluate the accuracy of endoscopic ultrasound (EUS), EUS-fine needle aspiration (FNA) in evaluating mediastinal lymphadenopathy. METHODS:Only EUS and EUS-FNA studies confirmed by surgery or with appropriate follow-up were selected. Articles were searched in Medline, Pubmed, and Cochrane control trial registry. Only studies from which a 2 × 2 table could be constructed for true positive, false negative, false positive and true negative values were included. Two reviewers independently searched and extracted data. The differences were resolved by mutual agreement. Meta-analysis for the accuracy of EUS was analyzed by calculating pooled estimates of sensitivity, specificity, likelihood ratios, and diagnostic odds ratios. Pooling was conducted by both Mantel-Haenszel method (fixed effects model) and DerSimonian Laird method (random effects model). The heterogeneity of studies was tested using Cochran’s Q test based upon inverse variance weights. RESULTS:Data was extracted from 76 studies (n = 9310) which met the inclusion criteria. Of these, 44 studies used EUS alone and 32 studies used EUS-FNA. FNA improved the sensitivity of EUS from 84.7% (95% CI:82.9-86.4) to 88.0% (95% CI:85.8-90.0). With FNA, the specificity of EUS improved from 84.6% (95% CI:83.2-85.9) to 96.4% (95% CI:95.3-97.4). The P forchi-squared heterogeneity for all the pooled accuracy estimates was > 0.10. CONCLUSION:EUS is highly sensitive and specific for the evaluation of mediastinal lymphadenopathy and FNA substantially improves this. EUS with FNA should be the diagnostic test of choice for evaluating mediastinal lymphadenopathy. | Srinivas R Puli Jyotsna Batapati Krishna Reddy Matthew L Bechtold Jamal A Ibdah Daphne Antillon Shailender Singh Mojtaba Olyaee Mainor R Antillon | 2008 | World Journal of Gastroenterology2008,14,19: | 10 |
| 4 | 二元液体混合物扩散系数的理论计算显示文摘许多化工过程涉及扩散控制的质量传递,扩散系数的获取对过程工程的精确量化具有重要意义。今提出了基于局部组成的扩散系数模型,以估算Maxwell-Stefan扩散系数随浓度的变化。仅通过无限稀释下的扩散系数,以及溶液的Wilson或NRTL参数,能够预测二元混合物的扩散系数。与文献发表的实验数据比较,对15种二元组分溶液的计算结果平均误差是6.35%。结果显示,这种模型优于目前常用的Darken模型。 | 阎建民 乐生龙 Krishna R | 2007 | 高校化学工程学报2007,21,6: | 7 |
| 5 | The immunology of human cytomegalovirus latency: could latent infection be cleared by novel immunotherapeutic strategies?显示文摘当跟随主要人的 cytomegalovirus (HCMV ) 感染的主人免疫者反应在停止病毒复制和传播通常是有效的时,病毒从来没被主人并且象所有 herpesviruses 一样清除,永久坚持。至少部分地,这坚持被知道被 HCMV 的能力便于在感染是实质上沉默的与的 myeloid 在房间建立潜伏,重要地新病毒生产的全部的缺乏。然而,尽管病毒的抄写计划很在潜伏期间被压制,很多病毒的基因在蛋白质水平在潜伏的感染期间被表示,这些中的许多被显示了在潜伏的房间和它的环境上有深刻效果。有趣地,许多也在 lysin 的感染期间这些联系潜伏的基因被表示。因此,一样的有势力主人免疫者回答为什么在 lysin 的感染期间产生了到这些病毒的基因产品,没在潜伏期间被认出,从而允许隐而不见地的感染的房间的清理,是远非清楚的。从潜伏的复活也是调停 HCMV 的疾病的一个主要原因,特别地在损害的免疫者和免疫者天真,并且也是可能的是在被建议了与象动脉粥样硬化和一些瘤形成那样的长期的疾病被联系的长期的无临床症状的 HCMV 感染的病毒的主要来源。因而,理解潜伏并且隐而不见地的感染的房间为什么看起来是 immunoprivileged,为 HCMV 的致病的理解是关键的并且可以帮助设计策略消除潜伏的病毒水库,至少在某些临床的背景。 | Mark R Wills Emma Poole Betty Lau Ben Krishna John H Sinclair | 2015 | Cellular & Molecular Immunology2015,12,2: | 6 |
| 6 | KOH activated carbon derived from biomass-banana fibers as an efficient negative electrode in high performance asymmetric supercapacitor显示文摘Here we demonstrate the fabrication, electrochemical performance and application of an asymmetric supercapacitor(AS) device constructed with β–Ni(OH)_2/MWCNTs as positive electrode and KOH activated honeycomb-like porous carbon(K-PC) derived from banana fibers as negative electrode. Initially,the electrochemical performance of hydrothermally synthesized β–Ni(OH)_2/MWCNTs nanocomposite and K-PC was studied in a three-electrode system using 1 M KOH. These materials exhibited a specific capacitance(Cs) of 1327 F/g and 324 F/g respectively at a scan rate of 10 m V/s. Further, the AS device i.e.,β–Ni(OH)_2/MWCNTs//K-PC in 1 M KOH solution, demonstrated a Cs of 156 F/g at scan rate of 10 m V/s in a broad cell voltage of 0–2.2 V. The device demonstrated a good rate capability by maintaining a Cs of 59 F/g even at high current density(25 A/g). The device also offered high energy density of 63 Wh/kg with maximum power density of 5.2 kW/kg. The AS device exhibited excellent cycle life with 100% capacitance retention at 5000 th cycle at a high current density of 25 A/g. Two AS devices connected in series were employed for powering a pair of LEDs of different colors and also a mini fan. | ChaitraK Vinny R T Sivaraman P Narendra Reddy Chunyan Hu Krishna Venkatesh Vivek C S Nagaraju N Kathyayini N | 2017 | Journal of Energy Chemistry2017,26,1: | 4 |
| 7 | Differential response of tomato genotypes to Xanthomonas-specific pathogen-associated molecular patterns and correlation with bacterial spot (Xanthomonas perforans) resistance显示文摘Plants depend on innate immune responses to retard the initial spread of pathogens entering through stomata,hydathodes or injuries.These responses are triggered by conserved patterns in pathogen-encoded molecules known as pathogen-associated molecular patterns(PAMPs).Production of reactive oxygen species(ROS)is one of the first responses,and the resulting‘oxidative burst’is considered to be a first line of defense.In this study,we conducted association analyses between ROS production and bacterial spot(BS;Xanthomonas spp.)resistance in 63 genotypes of tomato(Solanum lycopersicum L.).A luminol-based assay was performed on leaf tissues that had been treated with a flagellin 22(flg22),flagellin 28 and a Xanthomonas-specific flg22(flg22-Xac)peptide,to measure PAMP-induced ROS production in each genotype.These genotypes were also assessed for BS disease response by inoculation with Xanthomonas perforans,race T4.Although there was no consistent relationship between peptides used and host response to the BS,there was a significant negative correlation(r=−0.25,P<0.05)between foliar disease severity and ROS production,when flg22-Xac was used.This response could potentially be used to identify the Xanthomonas-specific PRR allele in tomato,and eventually PAMP-triggered immunity loci could be mapped in a segregating population.This has potential significance in tomato improvement. | Krishna Bhattarai Frank J Louws John D Williamson Dilip R Panthee | 2016 | Horticulture Research2016,3,1: | 3 |
| 8 | Recent advances in the diagnostic evaluation of pancreatic cystic lesions显示文摘Pancreatic cystic lesions(PCLs)are becoming more prevalent due to more frequent abdominal imaging and the increasing age of the general population.It has become crucial to identify these PCLs and subsequently risk stratify them to guide management.Given the high morbidity associated with pancreatic surgery,only those PCLs at high risk for malignancy should undergo such treatment.However,current diagnostic testing is suboptimal at accurately diagnosing and risk stratifying PCLs.Therefore,research has focused on developing new techniques for differentiating mucinous from non-mucinous PCLs and identifying high risk lesions for malignancy.Cross sectional imaging radiomics can potentially improve the predictive accuracy of primary risk stratification of PCLs at the time of detection to guide invasive testing.While cyst fluid glucose has reemerged as a potential biomarker,cyst fluid molecular markers have improved accuracy for identifying specific types of PCLs.Endoscopic ultrasound guided approaches such as confocal laser endomicroscopy and through the needle microforceps biopsy have shown a good correlation with histopathological findings and are evolving techniques for identifying and risk stratifying PCLs.While most of these recent diagnostics are only practiced at selective tertiary care centers,they hold a promise that management of PCLs will only get better in the future. | Devarshi R Ardeshna Troy Cao Brandon Rodgers Chidiebere Onongaya Dan Jones Wei Chen Eugene J Koay Somashekar G Krishna | 2022 | World Journal of Gastroenterology2022,28,6: | 3 |
| 9 | Analysis of driveline loads in an automotive powertrain with multiple Cardan joints显示文摘 | Krishna V Naganathan N G Phaduis R | 2000 | Journal of Autombile Engineering2000,214,: | 2 |
| 10 | Driveline load analysis with multiple cardan joints 显示文摘 | Krishna V Peelamedu S M Phadnis R | 2000 | JSME Int J Ser C2000,43,3: | 2 |
| 11 | Analysis of driveline loads in an automotive power train with multiple Cardan joints 显示文摘 | Krishna V Naganathan N G Phadnis R | 2000 | Proc Inst Mech Eng Part D J Automob Eng2000,214,5: | 2 |
| 12 | Multiple solutions in reactive distillation for methyl tert-butyl ether synthesis显示文摘 | Jacobs R Krishna R | 1993 | Ind Eng Chem Res1993,32,8: | 1 |
| 13 | The influence of mass transfer and mixing on the performance of a tray column for reactive distillation 显示文摘 | Higlera P Taylor R Krishna R | 1999 | Chemical Engineering Science1999,54,1314: | 1 |
| 14 | Diffusion of binary mixtures in zeolites:kinetic Monte Carlo versus molecular dynamics simulations 显示文摘 | Paschek D Krishna R | 2001 | Langmuir2001,17,: | 1 |
| 15 | Sequestosome 1/p62 is a polyubiquitin chain binding protein involved in ubiquitin proteasome degradation显示文摘 | Seibenhener M L Babu J R Geetha T Wong H C Krishna N R Wooten M W | | 0,,18: | 1 |
| 16 | Mass transfer from Taylor bubbles rising in single capillaries显示文摘 | Vandu C O Liu H Krishna R | 2005 | Chemical Engineering Science2005,60,22: | 1 |
| 17 | Ion Exchange Properties of Strontium on in Situ Precipitated Polyantimonic Acid in Amberlite XAD- 7显示文摘 | Sivaiah M V Venkatesan K A Krishna R M | 2005 | Sep Purif Technol2005,44,5: | 1 |
| 18 | Online detection of loss of synchronism using energy function criterion显示文摘 | Padiyar K R Krishna S | 2006 | IEEE Transactions on Power Systems2006,21,1: | 1 |
| 19 | Per- vaporation separation of water+1,4-dioxane and water+ tetrahydrofuran mixtures using sodium alginate and its blend membranes with hydroxyethylcellulose :A com- parative study显示文摘 | Naidu B V K Krishna R K S V Aminabhavi T M | 2005 | Journal of Membrane Science2005,260,12: | 1 |
| 20 | Inflam-matory mediators in exhaled breath condensate ofchildren with obstructive sleep apnea syndrome显示文摘 | GOLDBART A D KRISHNA J LI R C | 2006 | Chest2006,130,: | 1 |