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1Metallothionein:An overview显示文摘Metallothioneins (MTs) were discovered in 1957 by Margoshes and Vallee and identified as low-molecular weight and sulphydryl rich proteins. It is not surprising that most mammalian tissues contain age related basal levels of MTs since they are involved in metalloregulatory processes that include cell growth and multiplication. In an effort to understand the biology of this intriguing tumor, various biomarkers such as oncogenes, p53 tumor suppressor gene, waf 1 protein, proliferating cell nuclear antigen, telomerase, microsatellite markers and cytogenetic changes have been examined. One biomarker which has recently shown to be expressed in various human tumors but still less reported in carcinoma is MT. Immunohistochemical detection of MT proteins in cold acetone-fixed paraffin embedded liver sections was performed by the streptavidin-avidin-biotin immuno- peroxidase complex method.N Thirumoorthy KT Manisenthil Kumar A Shyam Sundar L Panayappan Malay Chatterjee 2007World Journal of Gastroenterology2007,13,7:21
2Over expression of resistin in adipose tissue of the obese induces insulin resistance显示文摘AIM: To compare resistin mRNA expression in subcutaneous adipose tissue (SAT) and its correlation with insulin resistance (IR) in postmenopausal obese women. METHODS: A total of 68 postmenopausal women (non obese = 34 and obese = 34) were enrolled for the study. The women of the two groups were age matched (49-70 years). Fasting blood samples were collected at admission and abdominal SAT was obtained during surgery for gall bladder stones or hysterectomy. Physical parameters [age, height, weight, body mass index (BMI)] were measured. Biochemical (plasma insulin and plasma glucose) parameters were estimated by enzymatic methods. RNA was isolated by the Trizol method.SAT resistin mRNA expression was done by real time- reverse transcription polymerase chain reaction (RT-PCR) by using Quanti Tect SYBR Green RT-PCR master mix. Data was analyzed using independent Student's t test, correlation and simple linear regression analysis. RESULTS: The mean weight (52.81 ± 8.04 kg vs 79.56 ± 9.91 kg; P < 0.001), BMI (20.23 ± 3.05 kg/m 2 vs 32.19 ± 4.86 kg/m 2 ; P < 0.001), insulin (8.47 ± 3.24 U/mL vs 14.67 ± 2.18 U/mL; P < 0.001), glucose (97.44 ± 11.31 mg/dL vs 109.67 ± 8.02 mg/dL; P < 0.001) and homeostasis model assessment index (2.01 ± 0.73 vs 3.96 ± 0.61; P < 0.001) were significantly higher in postmenopausal obese women compared to postmenopausal non obese women. The mean serum resistin level was also significantly higher in postmeno-pausal obese women compared to postmenopausal non obese women (9.05 ± 5.15 vs 13.92 ± 6.32, P < 0.001). Furthermore, the mean SAT resistin mRNA expression was also significantly (0.023 ± 0.008 vs 0.036 ± 0.009; P < 0.001) higher and over expressed 1.62 fold (upregulated) in postmenopausal obese women compared to postmenopausal non obese women. In postmeno-pausal obese women, the relative SAT resistin mRNA expression showed positive (direct) and significant correlation with BMI (r = 0.78, P < 0.001) and serum resistin (r = 0.76, P < 0.001). Furthermore, the SAT resistin mRNA expression in postmenopausal obese women also showed significant and direct association (r = 0.45, P < 0.01) with IR, while in postmenopausal non obese women it did not show any association (r = -0.04, P > 0.05). CONCLUSION: Increased SAT resistin mRNA expres-sion probably leads to inducing insulin resistance and thus may be associated with obesity-related disorders in postmenopausal obese women.Sadashiv Sunita Tiwari S Dhananjai Bhola N Paul Sandeep Kumar Abhijit Chandra Mahendra PS Negi 2012World Journal of Diabetes2012,3,7:10
3SWR1 Chromatin-Remodeling Complex Subunits and H2A.Z Have Non-overlapping Functions in Immunity and Gene Regulation in Arabidopsis显示文摘进由改变建筑群的 SWR1 染色质的 nucleosomes 的 histone 变体 H2A.Z 的加入是在真核细胞的基因规定的关键步。在 Arabidopsis, SWR1c 和 H2A.Z 被显示了控制位于开发和环境回答下面的基因表示。尽管他们在防卫被含有,在免疫的复杂子单元和 H2A.Z 的特定的角色很好没被理解。在这研究,我们分析了 SWR1c 子单元,光周期无关的早 FLOWERING1 (PIE1 ) ,肌动朊相关的 PROTEIN6 (ARP6 ) ,和 SWR1 建筑群的角色 6 (SWC6 ) ,以及 H2A.Z,在防卫和基因规定。我们发现 SWR1c 部件在抵抗起不同作用到不同病原体。PIE1 和 SWC6 功能以及 H2A.Z 的弄空的损失导致了减少的基础抵抗,当 ARP6 fucntion 的损失导致了提高的抵抗时。我们发现在 PIE1 和 SWC6 的变化导致了损害被触发受动器的免疫。在 SWR1c 部件和 H2A.Z 的变化也导致了损害 jasmonic acid/ethylene-mediated 免疫。染色体宽的表示分析同样在基因规定为 H2A.Z 和 SWR1c 部件揭示不同角色,并且在在表明小径的防卫之间的生气谈话的规定为 PIE1 建议一个潜在的角色。我们数据表演尽管他们是一样的建筑群的部分, Arabidopsis SWR1c 部件能在植物免疫和基因规定有非冗余的函数。Souha Berriri Sreeramaiah N Gangappa and S Vinod Kumar 2016Molecular Plant2016,9,7:7
4Combustion synthesis of Ce^(3+), Eu^(3+) and Dy^(3+) activated NaCaPO_4 phosphors显示文摘The preparation of NaCaPO4 doped with rare earth (RE) ions Ce3+, Eu3+ and Dy3+ by combustion method was described. Under UV excitation (251 nm) of NaCaPO4:Ce3+ showsd emission (367 nm) in UV range. When NaCaPO4:Dy3+ phosphor was excited at 349 nm, the emission spectrum showed intense bands at 482 nm (blue) and 576 nm (yellow). In Eu activated NaCaPO4 phosphor, the emission spectrum showed a dominant peak at 594 nm (orange) while others were at 614 and 621 nm (red) when excited at 393 nm. The prepared phosphor was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL) measurement. Thus, the photoluminescence behavior of NaCaPO4:Ce3+ was strongly suggested for scintillator. Likewise, Eu3+ and Dy3+ activated NaCaPO4 phosphors were recommended for near-UV white light-emitting diodes (LEDs).K N Shinde S J Dhoble Animesh Kumar 2011Journal of Rare Earths2011,29,6:7
5Is prophylactic placement of drains necessary after subtotal gastrectomy?显示文摘AIM: To determine the evidence-based values of prophylactic drainage in gastric cancer surgery. METHODS: One hundred and eight patients, who underwent subtotal gastrectomy with D1 or D2 lymph node dissection for gastric cancer between January 2001 and December 2005, were divided into drain group or no-drain group. Surgical outcome and post-operative complications within four weeks were compared between the two groups. RESULTS: No significant differences were observed between the drain group and no-drain group in terms of operating time (171 ± 42 min vs 156 ± 39 min), number of post-operative days until passage of flatus (3.7 ± 0.5 d vs 3.5 ± 1.0 d), number of post-operative days until initiation of soft diet (4.9 ± 0.7 d vs 4.8 ± 0.8 d), length of post-operative hospital stay (9.3 ± 2.2 d vs 8.4 ± 2.4 d), mortality rate (5.4% vs 3.8%), and overall post- operative complication rate (21.4% vs 19.2%). CONCLUSION: Prophylactic drainage placement is not necessary after subtotal gastrectomy for gastric cancer since it does not offer additional benefits for the patients.Manoj Kumarl Seung Bong Yangl Vijay Kumar Jaiswall Jay N Shahl Manish Shreshthal Rajesh Gongal 2007World Journal of Gastroenterology2007,13,27:7
6Patterns of cancer recurrence in localized resected hepatocellular carcinoma显示文摘BACKGROUND:Tumor resection in non-metastatic hepatocellular carcinoma(HCC)patients with adequate liver reserve offers a potential cure,but has a high 5-year recurrence rate.We analyzed the patterns of cancer relapse after partial hepatectomy to guide post-operative management.METHODS:A total of 144 HCC patients(1996-2011)after partial hepatectomy were reviewed.Statistical correlations were determined using univariate and partition analyses.RESULTS:A median follow-up of 20 months showed recurrence in 71(49%)patients,and the median time to recurrence was 11.9 months.Vascular invasion(P<0.01)and number of lesions(P<0.01)predicted for recurrence.Histologic grade was not correlated with recurrence.Twenty-two(31%)patients developed both surgical margin(SM)and concurrent intrahepatic recurrences,and 28(40%)had non-SM intrahepatic recurrences with no other signs of recurrence.On partition analysis,the risk of marginal recurrence in patients with SM<1 mm and SM≥1 mm was 35%and 13.5%respectively.Approximately 57%of patients with intrahepatic recurrence had recurrence≤2.5 cm from SM.CONCLUSIONS:Intrahepatic recurrence after partial hepatectomy is common and is significantly associated with vascular invasion and tumor stage.About 57%of patients with intrahepatic relapse had a recurrence close(≤2.5 cm)to the SM.Additionally,patients with SM<1 mm have a higher recurrence rate and may benefit from adjuvant local therapy.Aryavarta MS Kumar Elisha T Fredman Christopher Coppa Galal El-Gazzaz Federico N Aucejo May Abdel-Wahab 2015Hepatobiliary & Pancreatic Diseases International2015,14,3:7
7Mesenchymal stem cell therapy in retinal and optic nerve diseases: An update of clinical trials显示文摘Retinal and optic nerve diseases are degenerative ocular pathologies which lead to irreversible visual loss. Since the advanced therapies availability, cell-based therapies offer a new all-encompassing approach. Advances in the knowledge of neuroprotection, immunomodulation and regenerative properties of mesenchymal stem cells(MSCs) have been obtained by several preclinical studies of various neurodegenerative diseases. It has provided the opportunity to perform the translation of this knowledge to prospective treatment approaches for clinical practice. Since 2008, several first steps projecting new treatment approaches, have been taken regarding the use of cell therapy in patients with neurodegenerative pathologies of optic nerve and retina. Most of the clinical trials using MSCs are in Ⅰ/Ⅱ phase, recruiting patients or ongoing, and they have as main objective the safety assessment of MSCs using various routes of administration. However, it is important to recognize that, there is still a long way to go to reach clinical trials phase Ⅲ-Ⅳ. Hence, it is necessary to continue preclinical and clinical studies to improve this new therapeutic tool. This paper reviews the latest progress of MSCs in human clinical trials for retinal and optic nerve diseases.Sonia Labrador-Velandia María Luz Alonso-Alonso Sara Alvarez-Sanchez Jorge González-Zamora Irene Carretero-Barrio José Carlos Pastor Iván Fernandez-Bueno Girish Kumar Srivastava 2016World Journal of Stem Cells2016,8,11:5
8Clinical implications of diabetes in chronic liver disease:Diagnosis,outcomes and management,current and future perspectives显示文摘Diabetes mellitus(DM)is common in liver cirrhosis(LC).The pathophysiological association is bidirectional.DM is a risk factor of LC and LC is a diabetogenic condition.In the recent years,research on different aspects of the association DM and LC has been intensified.Nevertheless,it has been insufficient and still exist many gaps.The aims of this review are:(1)To discuss the latest understandings of the association of DM and LC in order to identify the strategies of early diagnosis;(2)To evaluate the impact of DM on outcomes of LC patients;and(3)To select the most adequate management benefiting the two conditions.Literature searches were conducted using Pub Med,Ovid and Scopus engines for DM and LC,diagnosis,outcomes and management.The authors also provided insight from their own published experience.Based on the published studies,two types of DM associated with LC have emerged:Type 2 DM(T2 DM)and hepatogenous diabetes(HD).High-quality evidences have determined that T2 DM or HD significantly increase complications and death pre and post-liver transplantation.HD has been poorly studied and has not been recognized as a complication of LC.The management of DM in LC patients continues to be difficult and should be based on drug pharmacokinetics and the degree of liver failure.In conclusion,the clinical impact of DM in outcomes of LC patients has been the most studied item recently.Nevertheless many gaps still exist particularly in the management.These most important gaps were highlighted in order to propose future lines for research.Diego García-Compeán Emanuela Orsi Ramesh Kumar Felix Gundling Tsutomu Nishida Jesús Zacarías Villarreal-Pérez Ángel N Del Cueto-Aguilera JoséA González-González Giuseppe Pugliese 2022World Journal of Gastroenterology2022,28,8:4
9Frameworks of Non-Orthogonal Multiple Access Techniques in Cognitive Radio Communication Systems显示文摘Recently,the increasing demand of radio spectrum for the next generation communication systems due to the explosive growth of applications appetite for bandwidths has led to the problem of spectrum scarcity.The potential approaches among the proposed solutions to resolve this issue are well explored cognitive radio(CR)technology and recently introduced non-orthogonal multiple access(NOMA)techniques.Both the techniques are employed for efficient spectrum utilization and assure the significant improvement in the spectral efficiency.Further,the significant improvement in spectral efficiency can be achieved by combining both the techniques.Since the CR is well-explored technique as compared to that of the NOMA in the field of communication,therefore it is worth and wise to implement this technique over the CR.In this article,we have presented the frameworks of NOMA implementation over CR as well as the feasibility of proposed frameworks.Further,the differences between proposed CR-NOMA and conventional CR frameworks are discussed.Finally,the potential issues regarding the implementation of CR-NOMA are explored.Prabhat Thakur Alok Kumar S Pandit G Singh S N Satashia 2019China Communications2019,16,6:3
10Bipolar radiofrequency ablation of tibialchondroblastomas: A report of three cases显示文摘Chondroblastoma is a rare benign cartilaginous neoplasm of bone. The recurrence rate is high and complications are frequent following open curettage with bone grafting which is the standard treatment forchondroblastomas. We performed radiofrequency ablation in three cases of tibialchondroblastoma using the bipolar system. One patient experienced residual pain for which repeat ablation was performed. No other complications were observed during follow-up. Radiofrequency ablation may offer an effective alternative for the treatment of selected cases of chondroblastoma. The lesion characteristics which are likely to influence treatment outcome and the advantages offered by the bipolar system are discussed.Prathiba Rajalakshmi Deep N Srivastava Shivanand Gamanagatti Pramod Kumar Julka Sushma Bhatnagar Shishir Rastogi 2012World Journal of Radiology2012,4,7:2
11FEM based Electromagnetic Signature Analysis of Winding Inter-turn Short-Circuit Fault in Inverter fed Induction Motor显示文摘The intent of this paper is to analyze the electromagnetic signature of stator winding inter-turn short-circuit fault in a closed loop speed controlled Induction Motor(IM)employing Finite Element Method.Stator winding short-circuit nearly covers 21%of faults in IM.Diagnosing the inter-turn fault at an incipient stage is one of the challenging task in the area of fault detection of IM to prevent crucial damages in industrial applications.Also detecting the faults in inverter fed IM under variable speed applications under varying load is one of the major issues in industrial drives.As the signatures of electromagnetic field contains the entire data in association with the location of rotor,stator and mechanical parts of the motor,a regular monitoring of fields in the airgap can be used to diagnose the inter-turn fault in the stator winding of IM.In this direction,an IM is modeled with several inter-turn fault severities like 30 turns,15 turns,5 turns&1 turn short using ANSYS Maxwell FEA tool and coupled with ANSYS Simplorer for loading arrangements.The PWM inverter with closed loop speed controlled strategy is implemented in Matlab Simulink and co-simulated with ANSYS Simplorer to integrate all the components in one common simulation platform environment for accurate design&analysis for realistic simulation.Several electromagnetic variables like flux density,flux lines and airgap flux density distribution over the machine are analyzed.The spatial FFT spectrum of radial component of flux density in the airgap contains the information related to the diagnosis of inter-turn fault at the incipient stage.Praveen Kumar N Isha T B 2019CES Transactions on Electrical Machines and Systems2019,3,3:2
12A lupane derivative and the 13C-NMR chemical shifts lupanone from Pleurostylia opposita 显示文摘Dantanarayana A P Kumar N S 1982Phytochemistry1982,21,8:2
13Ramucirumab plus docetaxel versus placebo plus docetaxel for second-line treatment of stage IV non-small-cell lung cancer after disease progression on platinum-based therapy (REVEL): a multicentre, double-blind, randomised phase 3 trial显示文摘Edward B Garon Tudor-Eliade Ciuleanu Oscar Arrieta Kumar Prabhash Konstantinos N Syrigos Tuncay Goksel Keunchil Park Vera Gorbunova Ruben Dario Kowalyszyn Joanna Pikiel Grzegorz Czyzewicz Sergey V Orlov Conrad R Lewanski Michael Thomas Paolo Bidoli Shaker 2014The Lancet2014,,:2
14Use of APHRODITE Rain Gauge-Based Precipitation and TRMM 3B43 Products for Improving Asian Monsoon Seasonal Precipitation Forecasts by the Superensemble Method显示文摘Yatagai Akiyo Krishnamurti T N Kumar Vinay Mishra A K Simon Anu 2014Journal of Climate2014,,3:2
15The Trends in Maternal Mortality between 1996 and 2009 in Guizhou, China: Ethnic Differences and Associated Factors显示文摘China bears a large burden of global maternal mortality, and the largest burden of maternal deaths in China is in poor western provinces. This study aimed to investigate the trends in maternal mortality and its associated factors in Guizhou province of western China between 1996 and 2009, and examine differences between minority and non-minority counties. A population-based, longitudinal, retrospective study was performed in a poor western province of China with a considerably large ethnic minority population. All 86 counties/districts of Guizhou were included with population at county, township and village level. Maternal mortality data were collected from routine reporting database of Guizhou Provincial Health Bureau. Trend and comparative analyses and multivariate linear regression analyses were performed using SPSS 17.0. Maternal mortality ratio(MMR) and its change over time, differences between ethnic groups were analyzed. A declining trend in maternal mortality and rising trend in hospital delivery in Guizhou was observed; ethnic differences between two ethnic groups persisted. The reduction in maternal mortality between 1996 and 2009 was related with increased gross domestic product, decreased male illiteracy rate, and increased hospital delivery rate. We found the declining trends in maternal mortality in Guizhou with persisting ethnic differences. The declining trends are related with economic development, hospital delivery and male illiteracy. Effective health education on maternal health is urgently needed for the minority groups, and basic education for the new generation should be enhanced to eradicate the illiteracy.杜清 练武 ?yvind Nss Espen Bjertness Bernadette Nirmal Kumar 石淑华 2015Journal of Huazhong University of Science and Technology(Medical Sciences)2015,35,1:2
16Structural and luminescence enhancement properties of Eu^(3+)/Ag nanocrystallites doped SiO_2-TiO_2 matrices显示文摘We reported here the structural and optical characterisation of silver nanocrystallites/Eu3+ :SiO2-TiO2 matrices synthesised through sol-gel route. Structural characterisations were done by using energy dispersive spectroscopy (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), atomic force microscope (AFM) and transmission electron microscopy (TEM) measurements and optical characterisations were performed by absorption and emission spectroscopy. The TEM and XRD measurements confirmed the presence of nanocrystals. A broad absorption band was observed due to surface plasmon resonance of silver nanocrystals. The effect of silver nanocrystals on the emission spectrum of Eu3+ doped SiO2-TiO2 matrices was discussed. An attempt was made to explain this fluorescence enhancement by invoking phenomena such as energy transfer, asymmetry ratio, surface plasmon, surface roughness, crystallinity and grain boundary. Our analysis, based on the experimental results, suggested that all the phenomena except crystallinity and grain boundary had favourable effects on fluorescence enhancement. We also estimated the relevant parameters associated with the phenomena that affected the fluorescence emission from the Eu3+ ions in the matrix. It was seen that the theoretical estimate of fluorescence enhancement agreed well with the experimental estimate.Arun Kumar K V Revathy K P Prathibha Vasudevan Sunil Thomas Biju P R Unnikrishnan N V 2013Journal of Rare Earths2013,31,5:2
17Randomized, Placebo-Controlled, Clinical Trial of Donepezil in Vascular Dementia: Differential Effects by Hippocampal Size显示文摘Gustavo C. Román Stephen Salloway Sandra E. Black Donald R. Royall Charles DeCarli Michael W. Weiner Margaret Moline Dinesh Kumar Rachel Schindler Holly Posner 2010Stroke2010,,6:2
18Association of endothelial nitric oxide synthase gene T-786C promoter polymorphism with gastric cancer显示文摘AIM: To investigate the role of endothelial nitric oxide synthase-786 T > C promoter polymorphism in the etiology of gastric cancer(GC). METHODS: A total of 150 GC patients and 150 control subjects were included in the study. The information on demographic features was elicited with an informed consent from all the patients and control subjects using a structured questionnaire. Helicobacter pylori(H. pylori) infectivity status was tested in antral biopsies from all the subjects by rapid urease test following the method of Vaira et al. Genomic DNA was isolated from whole blood samples following the salting out method of Lahiri et al. Genotype analysis of the rs2070744 polymorphism was carried out by allele-specific polymerase chain reaction method. The genotypes were determined based on the appearance of bands on an agarose gel stained with ethidium bromide under ultraviolet gel documentation with the help of 100 bp ladder. Odds ratios and corresponding 95%CIs were determined using java stat online software. RESULTS: There was a significant difference in the distribution of C allele(C vs T; P = 0.000, OR = 5.038) in patient group compared to the control subjects exhibiting a fivefold increased risk for GC. When the T/T and C/C genotypes were compared, there was an enhanced GC risk for individuals with C/C genotype(T/T vs C/C; P = 0.000). Among the demographic factors, smoking and alcoholism were the common risk factors in patients compared to the control subjects(P < 0.05). Patients with smoking and alcoholism developed cancer even in heterozygous T/C condition(smoking: P = 0.020 and alcoholism: P = 0.005). Individuals with H. pylori infection showed seven fold increased risk for cancer. All the patients with C/C genotype revealed a significant association between H. pylori infection and GC. Among the patients 2.4% of them revealed familial incidence of GC. No significant difference was noticed between cases and controls with regard to consanguinity(P = 0.473).CONCLUSION: The Present data suggest that eN OS-786 C/C genotype and C allele may be considered as potential risk factors in patients with GC.Devulapalli Krishnaveni Bhayal Amar Chand Porika Shravan Kumar Malladi Uma Devi Macherla Ramanna Akka Jyothy Nallari Pratibha N Balakrishna Ananthapur Venkateshwari 2015World Journal of Gastrointestinal Oncology2015,7,7:2
19Noor Grafting of sodium carboxymethylcellulose (CMC) with glycidyl methacrylate and development of UV curable coatings from CMC-g-GMA induced by cationic photoinitiators显示文摘Lin Ong Hui Kumar R N Rozman H D 2005Carbohydrate Polymers2005,59,1:1
20Bone morphogenic protein - 7 inhibits progression of chronic renal fibrosis associated with two genetic mouse models显示文摘Zeisherg M Bottigtio C Kumar N 2003Am J Physiol Renal Physiol2003,285,6:1
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