The recovery of TXB2 spiked to levels throughout the range of the assay in various matrices was evaluated.
Average % Recovery
Cell Culture Media (n=4)
EDTA Plasma (n=4)
Heparin Plasma (n=4)
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of TXB2 were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Preparation and Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Thromboxane B2
Thromboxane A2 (TXA2), is an eicosanoid involved in platelet aggregation, vasoconstriction, and reproductive functions. However, as TXA2 is rapidly degraded in vivo, TXA2 production is typically examined by assaying the more stable Thromboxane B2 (TXB2) or 11-dehydro-TXB2 (11-d-TXB2) derivatives. Levels of these metabolites are helpful markers in the study of diseases including liver cirrhosis, cystic fibrosis, mastocytosis, systemic lupus erythematosus, thrombosis diseases, and others.
Refer to the product for complete assay procedure.
Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
Prepare all reagents, standard dilutions, and samples as directed in the product insert.
Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.
Add 150 µL of Calibrator Diluent to the non-specific binding (NSB) wells.
Add 100 µL of Calibrator Diluent to the zero standard (B0) wells.
100 µL Standard, Control, or Sample
Add 100 µL of Standard, control, or sample to the remaining wells.
50 µL Primary Antibody Solution
Add 50 µL of Primary Antibody Solution to each well (except the NSB wells).
Cover with a plate sealer, and incubate at room temperature for 2 hours on a horizontal orbital microplate shaker. Do not wash the plate.
50 µL Conjugate
Add 50 µL of Conjugate to each well. Cover with a plate sealer, and incubate at room temperature for 1 hour on the shaker.
Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.
200 µL Substrate Solution
Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes on the benchtop. PROTECT FROM LIGHT.
100 µL Stop Solution
Add 100 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.