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61.
Web-based molecular processing tools installed on corporate Intranets bring easy to use cheminformatics and molecular modeling capabilities directly to the desks of synthetic chemists, giving them comfortable access to data and their visualization and analysis, considerably improving efficiency of the drug design and development process. User-friendly tools that use a standard Web browser as an interface allow users access to a broad range of expert molecular processing tools and techniques, without the need for extensive expertise in their use. 相似文献
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The ability of the human brain to form topological maps by self-organizing neuronal connectivity in an unsupervised manner inspired the development of a powerful computational tool, the self-organizing map (SOM). SOMs are used to cluster large amounts of data, simplifying and streamlining the laborious process of data interpretation. High-throughput screening techniques are a fixture in today's pharmaceutical industry, but mining the wealth of data afforded by such tools is an evolving process. In the past few years, SOMs have been married with nuclear magnetic resonance (NMR) to cluster NMR spectra in an unsupervised manner, finding new relationships and greatly reducing the time scientists must spend interpreting the spectra. 相似文献
65.
Matthew Thorne 《Drug discovery today》2004,9(24):1084-1085
Updates on the latest news and business collaborations in the pharmaceutical and biotech industry. 相似文献
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Haingsub R Chung John A Riccio Jr. Roland A Gerstung G.Reza Najem Jean Chou 《International journal of gynaecology and obstetrics》1982,20(6):449-454
File analysis based on 98,970 Pap tests on 58,053 patients from the Martland Medical Center of CMDNJ and its clinics was performed. Discovery rates, period prevalence and incidence rates were calculated for categories of mild to moderate dysplasia through invasive carcinoma. An incidence rate of 27/100,000 for invasive carcinoma was obtained, which is lower than the national average. Period prevalence and incidence rates of dysplasias are both high and similar. This indicates that epidemiologic parameters may need to be studied further. The mean age for the mild to moderate dysplasia was 25.7 years, for moderate to severe dysplasia, 29.29 years and for CIS, 33.25 years. These data may imply that younger women, especially in the urban areas, are at much higher risk than previously expected. 相似文献
67.
Tian-tian Li Xiang Gao Li Gao Bin-liang Gan Zu-cheng Xie Jing-jing Zeng Gang Chen 《Pathology, research and practice》2018,214(5):750-766
Background
It is generally acknowledged that miRNAs play pivotal roles in the initiation and development of cancer. The aim of the current study is to investigate the clinicopathological role of miR-136-5p in lung adenocarcinoma and its underlying molecular mechanism.Materials and methods
Data of a cohort of 1242 samples were provided by the Gene Expression Omnibus and The Cancer Genome Atlas to evaluate miR-136-5p expression in lung adenocarcinoma. A comprehensive meta-analysis integrating the expression data from all sources was performed, followed by a summary receiver operating curve plotted to appraise the upregulated expression of miR-136-5p in lung adenocarcinoma. Candidate targets of miR-136-5p were launched by the intersection of differentially expressed genes in The Cancer Genome Atlas and genes predicted by 12 web-based platforms. Then, hub genes were illustrated by a protein-protein interaction network. Furthermore, Kyoto Encyclopedia of Genes and Genomes, Gene Ontology and Protein Analysis Through Evolutionary Relationships analyses of potential target genes were carried out via bioinformatics tools.Results
MiR-136-5p expression was upregulated in lung adenocarcinoma versus normal tissues (standard mean difference?=?0.43, 95% confidence interval: 0.27-0.58). The summary receiver operating characteristic curve further verified the upregulation of miR-136-5p in lung adenocarcinoma (area under curve?=?0.7459). A total of 311 candidate target genes of miR-136-5p were gathered to create a protein-protein interaction network. Molecular mechanism analysis unveiled the potential miR-136-5p target genes participated in cell adhesion molecules, focal adhesion, complement and coagulation cascades and blood coagulation.Conclusion
MiR-136-5p is overexpressed in lung adenocarcinoma and is involved in the molecular mechanism of lung adenocarcinoma via suppressing the expressions of downstream targets, especially claudin-18, sialophorin and syndecan 2 that participate in cell adhesion. 相似文献68.
Zu-cheng Xie Tian-tian Li Bin-liang Gan Xiang Gao Li Gao Gang Chen Xiao-hua Hu 《Pathology, research and practice》2018,214(5):644-654
Background
Lung squamous cell cancer (LUSC) is a common but challenging malignancy. It is important to illuminate the molecular mechanism of LUSC. Thus, we aim to explore the molecular mechanism of miR-136-5p in relation to LUSC.Methods
We used the Cancer Genome Atlas (TCGA) database to investigate the expression of miR-136-5p in relation to LUSC. Then, we identified the possible miR-136-5p target genes through intersection of the predicted miR-136-5p target genes and LUSC upregulated genes from TCGA. Bioinformatics analysis was performed to determine the key miR-136-5p targets and pathways associated with LUSC. Finally, the expression of hub genes, correlation between miR-136-5p and hub genes, and expected significance of hub genes were evaluated via the TCGA and Genotype-Tissue Expression (GTEx) project.Results
MiR-136-5p was significantly downregulated in LUSC patients. Glucuronidation, glucuronosyltransferase, and the retinoic acid metabolic process were the most enriched metabolic interactions in LUSC patients. Ascorbate and aldarate metabolism, pentose and glucuronate interconversions, and retinol metabolism were identified as crucial pathways. Seven hub genes (UGT1A1, UGT1A3, UGT1A6, UGT1A7, UGT1A10, SRD5A1, and ADH7) were found to be upregulated, and UGT1A1, UGT1A3, UGT1A6, UGT1A7, and ADH7 were negatively correlated with miR-136-5p. UGT1A7 and ADH7 were the most significantly involved miR-136-5p target genes, and high expression of these genes was correlated with better overall survival and disease-free survival of LUSC patients.Conclusions
Downregulated miR-136-5p may target UGT1A7 and ADH7 and participate in ascorbate and aldarate metabolism, pentose and glucuronate interconversions, and retinol metabolism. High expression of UGT1A7 and ADH7 may indicate better prognosis of LUSC patients. 相似文献69.
70.
Q.V. Vuong S. Hirun P.A. Phillips T.L.K. Chuen M.C. Bowyer C.D. Goldsmith C.J. Scarlett 《Journal of ethnopharmacology》2014