Identification of a Novel Class of Small-Molecule Antiangiogenic Agents through the Screening of Combinatorial Libraries Which Function by Inhibiting the Binding and Localization of Proteinase MMP2 to Integrin α<sub>V</sub>β<sub>3</sub>
作者:Dale L. Boger、Joel Goldberg、Steve Silletti、Torsten Kessler、David A. Cheresh
DOI:10.1021/ja003579+
日期:2001.2.1
endothelial cells based on its ability to directly bind integrin alpha(V)beta(3), suggesting that disrupting this protein--protein interaction may represent a new target for the development of angiogenesis inhibitors. The screening of small molecule libraries led to the identification of compounds which disrupt the MMP2--alpha(V)beta(3) interaction in an in vitro binding assay. A prototypical inhibitor was
Decomposition of 14C-fenitrothion under the influence of UV and sunlight under tropical and subtropical conditions
作者:S.M.A.D. Zayed、F. Mahdy
DOI:10.1016/j.chemosphere.2007.07.063
日期:2008.2
ultraviolet light was investigated, Its stability to sunlight on leaf surfaces of bean plants and on different surfaces (such as glass, quartz and plastic) was also determined. The main photoproducts were identified as carboxyfenitrothion, fenitrooxon, carboxyfenitrooxon and 3-methyl-4-nitrophenol and a small amount 3-caboxy-4-nitrophenol and methylparathion. The addition of carbaryl and deltamethrin
Adduction of DNA with MTBE and TBA in mice studied by accelerator mass spectrometry
作者:Y. Yuan、H. F. Wang、H. F. Sun、H. F. Du、L. H. Xu、Y. F. Liu、X. F. Ding、D. P. Fu、K. X. Liu
DOI:10.1002/tox.20295
日期:2007.12
synthesized from 14C‐methanol and tert‐butyl alcohol (TBA), or 14C‐labeled TBA in mice have been measured by ultra sensitive accelerator mass spectrometry. The results show that the methyl group of MTBE and tert‐butyl alcohol definitely form adducts with DNA in mouse liver, lung, and kidney. The methyl group of MTBE is the predominant binding part in liver, while the methyl group and the tert‐butyl group
Toxicological evaluation and bioavailability of 14C-fenitrothion bound residues on soybeans towards experimental animals
作者:M. Farghaly、S. El-Maghraby
DOI:10.1016/j.fct.2008.06.015
日期:2008.9
insecticide/kg grains, led to the formation of 21% of (14)C-bound residues (non-extractable) after 24 weeks of storage. The external residues were 20% and the internal extracts were 55% of the applied dose. Feeding studies on rats revealed that boundresidues were bioavailable. After feeding rats for three days with bound (14)C-fenitrothion residues, the main portion of radioactivity was eliminated via expired