摘要:
Ester-form and free-form cholesterols contained in a very-low-density lipoprotein remnant (hereinafter, inclusively referred to as very-low-density lipoprotein remnant cholesterols) are determined. In an aqueous medium containing a sample, a cholesterol ester hydrolase and a cholesterol oxidase or cholesterol dehydrogenase are caused to act specifically on the very-low-density lipoprotein remnant cholesterols in the sample in the presence of a combination of (a) a polyoxyethylene-polyoxyalkylene alkylaryl ether and (b) at least one surfactant selected from the group consisting of a polyoxyethylene/polyoxybutylene condensate, a polyoxyethylene styrenated phenyl ether, and a polyoxyalkylene long-chain alkyl ether.
摘要:
The present invention relates in general to cellular analysis tools and more particularly to methods of determining cyclic nucleotide concentrations in samples.
摘要:
The present invention relates generally to cyclooxygenase enzymes (COX) and more particularly the COX-2 enzyme. The present invention provides compositions, methods and articles of manufacture (kits) for determining the COX-2 activity in a sample of a subject, such as a patient or a cell culture. The present invention is useful in monitoring inflammation and cancer, or other disease processes, in patients in a clinical setting.
摘要:
Disclosed is a p0157 plasmid-specified polypeptide found in E.coli EDL933 and other E. coli that binds to and cleaves C1-esterase inhibitor, and antibodies specific for the polypeptide. Also disclosed are methods employing the polypeptide for diagnosing enterohemorragic E. coli infection, identifying potential inhibitors of its acticity, and reducing viscosity of material containing glycosylated polypeptides.
摘要:
The invention relates to a quantitative method for detecting yessotoxins in fish products based on the activation caused by the toxin in cellular phosphodiesterase and therapeutic usefulness of said activation. The cellular target of yessotoxin (YTX) and analogues is the activation of phosphodiesterases (PDEs). The PDEs-YTX union emits a measurable signal. The union can be quantified by means of an affinity biosensor or fluorescence. The biosensor detects bimolecular interactions and makes it possible to determine the presence of YTX due to its interaction with PDEs. Plate fluorescence makes it possible to determine variations in the speed of degradation of fluorescent derivative anthranyloil-AMPc. The speed with which the PDEs degrade this molecule increases in the presence of YTX. The YTX inhibits the immunological activation of rat mastocytese and induces a cytotoxic effect in human hepatocarcinoma cells, which provides two therapeutic utilities of YTXs as anti-allergic and anti-tumoral compound.
摘要:
A method of evaluating freshness of a fish product by cutting a small quantity of sample from the fish product, adding an effective amount of a staining reagent containing at least one of a cell-permeant dye and a cellimpermeant fluorescent dye onto the sample, incubating the sample for a predetermined duration, and determining the freshness of the fish product based on the fluorescence emitted from the sample.
摘要:
A sulfonate compound comprising a structure represented by the following general formula: (I) wherein the atomic group A-O is an atomic group forming a fluorescent compound by cutting the covalent bonding with a sulfonyl group, the atomic group B-SO3- bonding to the atomic group A may be one group or plural groups, B is a ring substituted with one or plural electron-attracting groups, the above electron-attracting group is at least one selected from the group consisting of a halogenated alkyl group, a nitro group and a cyano group, and B’s may be the same or different when a plurality of B are present.
摘要:
This invention relates to a method for measuring enzymatically active Lipoproteinassociated Phospholipase A2 (Lp-PLA2) in a sample. Further, this invention relates to a Hybrid Immunocapture method for measuring enzymatically active Lp-PLA2 in a sample. Specifically, this invention relates to a Hybrid Immunocapture method for measuring enzymatically active Lp-PLA2 in a sample utilizing an enzymatically active Lp-PLA2 standard. In addition, this invention relates to a kit for measuring enzymatically active LpPLA2 in a sample. Specifically, this invention relates to a kit for measuring enzymatically active Lp-PLA2 in a sample containing an enzymatically active Lp-PLA2 standard.