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51.
P.V. Sri Ramya Lalita Guntuku Srinivas Angapelly Shailaja Karri Chander Singh Digwal Bathini Nagendra Babu V.G.M. Naidu Ahmed Kamal 《Bioorganic & medicinal chemistry letters》2018,28(5):892-898
Synthesis of twenty new curcumin inspired 2-chloro/phenoxy quinoline derivatives is outlined in this study. The obtained new chemical entities were screened in vitro for their cytotoxic activity towards various tumor cell lines. Of the compounds screened, 6c and 9d exhibited significant activity and the most active analogue 6c displayed promising cytotoxicity against PC-3 (IC50 of 3.12?±?0.11?μM), DU-145, NCI-H460 and 4?T1 cell lines. Further, 6c and 9d have 2.1 and 1.4 times more aqueous solubility, respectively, than curcumin. Additionally, the promising candidate 6c could induce G2/M cell cycle arrest and apoptosis in PC-3 cells, as determined by AO-EB staining, DAPI staining, analysis of ROS levels as well as annexin binding assay. 相似文献
52.
Ajay Gaur Kesaraju Shailaja Anju Singh Veluri Arunabala Borusu Satyarebala Lalji Singh 《Conservation Genetics》2006,7(6):1005-1008
The Asiatic lion (Panthera leo persica) is driven to a single habitat in Gir forests in India for its survival. In order to devise adequate conservation and management strategies for this critically endangered species, it is important to characterize its genetic diversity and understand its population structure. Here we report twenty microsatellite loci, in addition to seven reported earlier, from the genome of a pure Asiatic lion. The microsatellite loci described here will provide potentially useful markers for the assessment of genetic variability in the only existing wild population of the Asiatic lions and other big cat species. 相似文献
53.
Arivazhagan Arimappamagan Kumaravel Somasundaram Kandavel Thennarasu Sreekanthreddy Peddagangannagari Harish Srinivasan Bangalore C. Shailaja Cini Samuel Irene Rosita Pia Patric Sudhanshu Shukla Balaram Thota Krishnarao Venkatesh Prasanna Paritosh Pandey Anandh Balasubramaniam Vani Santosh Bangalore Ashwathnarayanara Chandramouli Alangar Sathyaranjandas Hegde Paturu Kondaiah Manchanahalli R. Sathyanarayana Rao 《PloS one》2013,8(4)
Background
Recent research on glioblastoma (GBM) has focused on deducing gene signatures predicting prognosis. The present study evaluated the mRNA expression of selected genes and correlated with outcome to arrive at a prognostic gene signature.Methods
Patients with GBM (n = 123) were prospectively recruited, treated with a uniform protocol and followed up. Expression of 175 genes in GBM tissue was determined using qRT-PCR. A supervised principal component analysis followed by derivation of gene signature was performed. Independent validation of the signature was done using TCGA data. Gene Ontology and KEGG pathway analysis was carried out among patients from TCGA cohort.Results
A 14 gene signature was identified that predicted outcome in GBM. A weighted gene (WG) score was found to be an independent predictor of survival in multivariate analysis in the present cohort (HR = 2.507; B = 0.919; p<0.001) and in TCGA cohort. Risk stratification by standardized WG score classified patients into low and high risk predicting survival both in our cohort (p = <0.001) and TCGA cohort (p = 0.001). Pathway analysis using the most differentially regulated genes (n = 76) between the low and high risk groups revealed association of activated inflammatory/immune response pathways and mesenchymal subtype in the high risk group.Conclusion
We have identified a 14 gene expression signature that can predict survival in GBM patients. A network analysis revealed activation of inflammatory response pathway specifically in high risk group. These findings may have implications in understanding of gliomagenesis, development of targeted therapies and selection of high risk cancer patients for alternate adjuvant therapies. 相似文献54.
Prabhat Ranjan Kundanbala Desai Shailaja Gada Saxena 《Indian journal of human genetics》2013,19(2):262-265
The presence of derivative chromosome in a child with phenotypic features necessitates the need of parental karyotyping to ascertain the exact amount of loss or gain of the genetic material. The aim of this study was to emphasize the importance of parental karyotyping. Cytogenetic evaluation of the proband and his father were carried out at Laboratory. Cytogenetic analysis was performed on phytohemagglutinin stimulated cultures. The derivative chromosome 11 in proband was ascertained to have additional material from chromosome 6p arising from complex chromosomal rearrangement in the father. Karyotyping is the basic, cost-effective preliminary investigation in a child with mental subnormality or congenital anomalies. 相似文献
55.
Gandhi UH Kaushal N Ravindra KC Hegde S Nelson SM Narayan V Vunta H Paulson RF Prabhu KS 《The Journal of biological chemistry》2011,286(31):27471-27482
56.
Morarka A Agrawal S Kale S Kale A Ogale S Paknikar K Bodas D 《Biosensors & bioelectronics》2011,26(6):3050-3053
Microchannel is basic functional component of microfluidic chip and every step-forward of its construction technique has been receiving concern all over the world. The present work describes a novel, rapid and simple fabrication technique for building 3D microchannels in poly(dimethyl siloxane) (PDMS) elastomer. These microchannels were used for rapid detection of antigens (E. coli) by quantum dot (QD) based approach. Luminescent QD (CdTe) were synthesized by aqueous method and characterized using high resolution transmission electron microscopy (HRTEM), fluorescence spectroscopy and X-ray diffraction (XRD). The QDs were functionalized with anti-E. coli antibodies for immuno-detection. The reported process allowed easier and faster method of fabrication of circular 3D micochannels and demonstrated their potential use in an immuno-biosensor device. 相似文献
57.
c-Jun N-terminal kinase contributes to aberrant retinoid signaling in lung cancer cells by phosphorylating and inducing proteasomal degradation of retinoic acid receptor alpha 下载免费PDF全文
Srinivas H Juroske DM Kalyankrishna S Cody DD Price RE Xu XC Narayanan R Weigel NL Kurie JM 《Molecular and cellular biology》2005,25(3):1054-1069
58.
Haifei Shi Shailaja Akunuru John C. Bierman Karen M. Hodge M. Chrissy Mitchell Michelle T. Foster Randy J. Seeley Ofer Reizes 《Obesity (Silver Spring, Md.)》2009,17(9):1702-1709
Behavioral therapies aimed at reducing excess body fat result in limited fat loss after dieting. To understand the causes for maintenance of adiposity, high‐fat (HF) diet–induced obese (DIO) mice were switched to a low‐fat chow diet, and the effects of chow on histological and molecular alterations of adipose tissue and metabolic parameters were examined. DIO mice reduced and stabilized their body weights after being switched to chow (HF‐chow), but retained a greater amount of adiposity than chow‐fed mice. Reduction in adipocyte volume, not number, caused a decrease in fat mass. HF‐chow mice showed normalized circulating insulin and leptin levels, improved glucose tolerance, and reduced inflammatory status in white adipose tissue (WAT). Circulating leptin levels corrected for fat mass were lower in HF‐chow mice. Leptin administration was used to test whether reduced leptin level of HF‐chow mice inhibited further fat loss. Leptin treatment led to an additional reduction in adiposity. Finally, HF‐HF mice had lower mRNA levels of β3 adrenergic receptor (β3‐AR) in epididymal WAT (EWAT) compared to chow‐fed mice, and diet change led to an increase in the WAT β3‐AR mRNA levels that were similar to the levels of chow‐fed mice, suggesting an elevation in sympathetic activation of WAT during diet switch relative to HF‐HF mice leading to the reduced leptin level and proinflammatory cytokine content. In summary, HF‐chow mice were resistant to further fat loss due to leptin insufficiency. Diet alteration from HF to low fat improved metabolic state of DIO mice, although their adiposity was defended at a higher level. 相似文献
59.
Lysine-sensitive aspartate kinase of Serratia marcescens. 总被引:2,自引:0,他引:2
60.
William Kemnitzer Jared Kuemmerle Songchun Jiang Nilantha Sirisoma Shailaja Kasibhatla Candace Crogan-Grundy Ben Tseng John Drewe Sui Xiong Cai 《Bioorganic & medicinal chemistry letters》2009,19(13):3481-3484
As a continuation of our efforts to discover and develop the apoptosis inducing 1-benzoyl-3-cyanopyrrolo[1,2-a]quinolines as potential anticancer agents, we explored substitutions at the 4-, 5-, 6-, 7- and 8-positions of pyrrolo[1,2-a]quinoline. SAR studies showed that substitution at the 6-position by a small group such as Cl resulted in potent compounds. Substitutions at the 5- and 8-positions were tolerated while substitutions at the 4- and 7-position led to inactive compounds. Several compounds, including 2c, 3a, 3b and 3f, were found to be highly active against human breast cancer cells T47D with EC50 values of 0.053–0.080 μM, but much less active against human colon cancer cells HCT116 and hepatocellular carcinoma cancer cells SNU398 in the caspase activation assay. Compound 3f also was found to be highly active with a GI50 value of 0.018 μM against T47D cells in a growth inhibition assay. 相似文献