DRG International, Inc. products

CHROMagar™chromogenic plates are easy to prepare - just add water to the dehydrated media, bring to a boil, let it cool down and pour! Use the entire pack, or if there is a need for a smaller number of plates, just a portion. CHROMagar™ products are sold in dehydrated form. DRG offers the 5L size (after reconstitution). If kept under appropriate storage temperatures, CHROMagar™ powder products have a long shelf life (2-3 years). This flexibility is essential to avoid the costly waste resulting from unused plates. Some CHROMagar™ products require supplements to use properly; these are shipped free of charge along with the product. Supplements contain compounds that cannot be heated, therefore the compounds would degrade in the base if stored together for a long time. Depending on the product, the supplement will be in either liquid or powder form, and may or may not be refrigerated.

The DRG Taenia solium IgG ELISA is for the qualitative screening of serum or plasma IgG antibodies to Taenia solium using an Enzyme Linked Immunosorbent Assay (ELISA) technique.

An enzyme immunoassay for measurement of Dehydroepiandrosterone (DHEA) in saliva. This product is for Research Use Only; International customers contact your representative to receive information about the CE marked version. The DRG Salivary DHEA ELISA Kit is a solid phase enzyme-linked immunosorbent assay (ELISA), based on the principle of competitive binding. The microtiter wells are coated with a polyclonal antibody directed towards an antigenic site of the DHEA molecule. Endogenous DHEA of a sample competes with a DHEA-horseradish peroxidase conjugate for binding to the coated antibody. After incubation the unbound conjugate is washed off. The amount of bound peroxidase conjugate is inversely proportional to the concentration of DHEA in the sample. After addition of the substrate solution, the intensity of colour developed is inversely proportional to the concentration of DHEA in the sample.

The EPO ELISA is intended for the quantitative determination of Erythropoietin (EPO) in human serum. This assay is intended for in vitro diagnostic use, as an aid in the diagnosis of anemias and polycythemias. With the advent of the administration of recombinant erythropoietin as a biologic therapy to increase red blood cell mass, an erythropoietin assay may be used also to aid in the prediction and monitoring of response to recombinant erythropoietin treatment in persons with anemias. Erythropoietin (EPO) is a heavily glycosylated protein with a molecular weight of about 30,000 - 34,000 Daltons.  Human EPO is a polypeptide consisting of 165 amino acids, containing one O-linked and three N-linked carbohydrate chains [1].  The recombinant EPO is a good substitute for the native protein for use in an immunoassay [2].  Serum EPO levels are dependent on the rate of production and the rate of clearance of the protein.