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| 1 | 患者肠道微生物群失调与肠上皮屏障功能障碍显示文摘最近的证据表明,在动物模型中,肠道病理学和微生物组与高血压之间存在联系。然而,这种关联在人类中是否存在尚不清楚。因此,该研究的目的是检验高血压患者具有明显特异的肠道微生物组以及肠上皮屏障功能标记物和微生物组组成可以预测收缩压变化的假设。研究者通过鸟枪法宏基因组学分析粪便样本显示微生物分类和功能变化,结果显示高血压患者和对照受试者之间丁酸盐产生存在差异。 | Kim S Goel R Kumar A Qi Y Lobaton G Hosaka K Mohammed M Handberg EM Richards EM Pepine CJ Raizada MK 刘青 叶鹏 | 2018 | 中华高血压杂志2018，26，9： | 45 |
| 2 | Antimicrobial potential of Actinomycetes species isolated from marine environment显示文摘Objective:To evaluate the antimicrobial activity of Actinomycetes species isolated from marine environment.Methods:Twenty one strains of Actinomyceteswere isolated from samples of Royapuram, Muttukadu, Mahabalipuram sea shores and Adyar estuary. Preliminary screening was done using cross-streak method against two gram-positive and eight gram-negative bacteria.The most potent strains C11 and C12 were selected from which antibacterial substances were extracted. The antibacterial activities of the extracts were performed using Kirby-Bauer disc diffusion method. Molecular identification of those isolates was done.Results:All those twenty one isolates were active against at least one of the test organisms. Morphological characters were recorded. C11 showed activity againstStaphylococcusspecies(13.0暲0.5 mm),Vibrio harveyi(11.0暲0.2 mm),Pseudomonas species(12.0暲0.3 mm). C12 showed activity against Staphylococcus species(16.0暲0.4 mm),Bacillus subtilis(11.0暲0.2 mm),Vibrio harveyi(9.0暲0.1 mm),Pseudomonas species(10.0暲0.2 mm). 16S rRNA pattern strongly suggested that C11 and C12 strains were Streptomyces species.Conclusions:The results of the present investigation reveal that the marineActinomycetesfrom coastal environment are the potent source of novel antibiotics.Isolation, characterization and study of Actinom ycetescan be useful in discovery of novel species of Actinomy cetes. | Valli S Suvathi Sugasini S Aysha OS Nirmala P Vinoth Kumar P Reena A | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，6： | 8 |
| 3 | Subcurative radiation significantly increases cell proliferation, invasion, and migration of primary glioblastoma multiforme in vivo显示文摘Tumor cell proliferation, infiltration, migration, and neovascularization are known causes of treatment resistance in glioblastoma multiforme(GBM). The purpose of this study was to determine the effect of radiation on the growth characteristics of primary human GBM developed in a nude rat. Primary GBM cells grown from explanted GBM tissues were implanted orthotopically in nude rats. Tumor growth was confirmed by magnetic resonance imaging on day 77(baseline) after implantation. The rats underwent irradiation to a dose of 50 Gy delivered subcuratively on day 84 postimplantation(n = 8), or underwent no radiation(n = 8). Brain tissues were obtained on day 112(nonirradiated) or day 133(irradiated). Immunohistochemistry was performed to determine tumor cell proliferation(Ki-67) and to assess the expression of infiltration marker(matrix metalloproteinase-2, MMP-2) and cell migration marker(CD44). Tumor neovascularization was assessed by microvessel density using von-Willebrand factor(vWF) staining. Magnetic resonance imaging showed well-developed, infiltrative tumors in 11 weeks postimplantation. The proportion of Ki-67-positive cells in tumors undergoing radiation was(71 ± 15)% compared with(25 ± 12)% in the nonirradiated group(P = 0.02). The number of MMP-2-positive areas and proportion of CD44-positive cells were also high in tumors receiving radiation, indicating great invasion and infiltration. Microvessel density analysis did not show a significant difference between nonirradiated and irradiated tumors. Taken together, we found that subcurative radiation significantly increased proliferation, invasion, and migration of primary GBM. Our study provides insights into possible mechanisms of treatment resistance following radiation therapy for GBM. | Adarsh Shankar Sanath Kumar Asm Iskander Nadimpalli RS Varma Branislava Janic Ana deCarvalho Tom Mikkelsen Joseph A Frank Meser M Ali Robert A Knight Stephen Brown Ali S Arbab | 2014 | Chinese Journal of Cancer2014，33，3： | 5 |
| 4 | Clinical 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 | 2022 | World Journal of Gastroenterology2022，28，8： | 4 |
| 5 | Genetic determinant s of diabetic nephropathy显示文摘 | Chowdhury T A Dyer P H Kumar S | | 0，，： | 2 |
| 6 | A lupane derivative and the 13C-NMR chemical shifts lupanone from Pleurostylia opposita 显示文摘 | Dantanarayana A P Kumar N S | 1982 | Phytochemistry1982，21，8： | 2 |
| 7 | Evaluation of anti–inflammatory and analgesic potential of methanol extract of Tectona grandis flowers显示文摘 | S Ramachandran B Rajini kanth A Rajasekaran KT Manisenthil Kumar | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，，2： | 2 |
| 8 | The M/G/1 retrial queue with feedback and starting failures显示文摘 | Krishna Kumar B Pavai S Madheswari Vijayakumar A | 2002 | Applied Mathematical Modelling2002，，26： | 1 |
| 9 | Non-destructive method of leaf-area determination in ash gourd ( Benincasa hispida) 显示文摘 | Radhakrishnan V V Kumar P G S Oommen A | 1991 | Indian Journal of Agricultural Sciences1991，61，1： | 1 |
| 10 | Frequency Estimation Techniques for High Dynamic Trajectories显示文摘 | Vilnrotter V A Hinedi S Kumar R | 1989 | IEEE Trans on Aerospace and Electronic Systems1989，25，4： | 1 |
| 11 | Comparative analysis of genetic diversity among Indian populations of Scirpophaga incertulas by ISSR-PCR and RAPD-PCR显示文摘 | Kumar L S Sawant A S Gupta V S | 2001 | Biochem Genet2001，39，： | 1 |
| 12 | Timing, quantification and tectonic modelling of Pliocene-Quartenary movements in the NW Himalaya:evidence from fission track dating显示文摘 | Kumar D Singh S | 2000 | Earth and Planetary Science Letters2000，179，43： | 1 |
| 13 | Genetic variants of platelet glycoprotein receptors and risk of stroke in young women 显示文摘 | Reiner A P Kumar P M Schwartz S M | 2000 | Stroke2000，31，7： | 1 |
| 14 | Cytokine modulation in sepsis and septic shock显示文摘 | Zanotti S Kumar A Kumar A | 2002 | Expert Opin Investig Drugs2002，11，8： | 1 |
| 15 | An approach to the estimation of the value of agricultural residues used as biofuels 显示文摘 | Kumar A Purohit P Rana S | 2002 | Biomass & Bioenergy2002，22，3： | 1 |
| 16 | Combretastatin A-4 analogs as anticancer agents显示文摘 | Chaudhary A Pandeya S N Kumar P | 2007 | Mini Rev Med Chem2007，7，12： | 1 |
| 17 | Color doppler ultrasonography for treatment response prediction and evaluation in breast cancer 显示文摘 | Kumar A Srivastava V Singh S | 2010 | Future Oncol2010，6，8： | 1 |
| 18 | Breast carcinoma : vascular density determined using CD105 antibody correlates with tumor prognosis显示文摘 | Kumar S Ghellal A Li C | 1999 | Cancer Res1999，59，4： | 1 |
| 19 | Differences among H1 Histone Subfractions in Binding to Linear and Superhelical DNA显示文摘 | Alva K S Kumar J Marx K A | 1981 | J Biol Chem1981，256，11： | 1 |
| 20 | Computer Simulation of Transport Processes During Injection Mold-Filling and Optimization of the Molding Conditions显示文摘 | Kumar A Ghoshdastidar P S Muju M K | 2002 | Journal of Materials Processing Technology2002，120，3： | 1 |
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