摘要:
Methods are provided to specifically modulate the activation of monocytes and/or macrophages. Administration of integrin linked kinase (ILK) blocking agents; compounds that otherwise prevent the binding of natural ILK ligands to ILK; or compounds that prevent expression of, or signaling through ILK exert an anti-inflammatory effect by inhibiting iNOS and COX-2 expression, at the level of transcription by suppressing the activation of NF-κB. The modulation of activation through ILK is used to regulate immune processes at targeted sites, for example to decrease undesirable inflammatory responses.
摘要:
Plasmid-lipid particles which are useful for transfection of cells in vitro or in vivo are described. The particles can be formed using either detergent dialysis methods or methods which utilize organic solvents. The particles are typically 65-85 nm, fully encapsulate the plasmid and are serum-stable.
摘要:
A rapid colorimetric assay is provided for determining the concentration of vanadyl and vanadate ion species, and total vanadium concentration, in a sample. A sample suspected of containing vanadium in one or more of these oxidation states is combined with a colorimetric substrate that will provide for different absorption spectra with vanadyl and vanadate complexes. Suitable colorimetric substrates include halogenated hydroxyquinolines, e.g. broxyquinoline (DBHQ). The solvent and assay conditions are chosen to minimize oxidation of the vanadium. The absorbance of the sample is then read at two wavelengths, one that indicates the presence of both vanadyl and vanadate, and one that indicates the presence only of one species, generally vanadate. By comparison to a standard curve, the total concentration and the species concentration of vanadium in the sample is determined.