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- Assay Type Competitive ELISA
- Sample Types Serum, Plasma, Urine, Respiratory Vapor, Tissue Culture Media, Feather, Hair, Fecal Extracts
- Sensitivity 20.9 pg/mL in 50 µL format, 14.4 pg/mL in 100µL format
- Species Corticosterone is identical across species
- Assay Duration 1.5 Hours
- Samples/Plate 37 in Duplicate
- Readout Colorimetric, 450 nm
- Standard Curve
The Corticosterone Multi-Format ELISA Kit quantitatively measures Corticosterone in serum, plasma, urine, respiratory vapor, tissue culture media, feather, hair, and fecal extracts. The Corticosterone Multi-Format ELISA Kit is a competitive ELISA with a run time of 1.5 hours. Please read the complete kit insert for more information before performing this assay.
Use our provided corticosterone standard to generate a standard curve for the assay. Pipette the standards or diluted samples into a transparent microtiter plate coated with our donkey anti-sheep IgG antibody. Add the corticosterone peroxidase conjugate and the corticosterone polyclonal sheep antibody. Then incubate the mixture for 1 hour, shaking at room temperature. The immunological reaction occurs between the anti-corticosterone polyclonal antibody, the corticosterone antigen in the sample or standard, and the corticosterone-peroxidase conjugate. As the corticosterone concentration in the sample increases, the bound corticosterone-peroxidase conjugate decreases, causing a decrease in signal and vice versa.
After the 1-hour incubation, wash away the excess corticosterone-peroxidase conjugate and add the TMB substrate. The TMB substrate reacts with the bound corticosterone-peroxidase conjugate generating a signal detected by a plate reader at 450nm. Use the intensity and the standard curve to calculate the corticosterone concentration in the samples.
Corticosterone (Kendall’s Compound ‘B’) is a glucocorticoid secreted by the cortex of the adrenal gland. It is produced in the adrenal cortex upon ACTH stimulation and is the aldosterone precursor. Corticosterone is a significant indicator of stress and is the prominent stress steroid produced in non-human mammals. Studies involving corticosterone and stress levels have found evidence of impairment of long-term memory retrieval, chronic corticosterone elevation due to dietary restrictions, and corticosterone elevation in response to burn injuries. In addition to stress levels, Corticosterone plays a decisive role in sleep-wake patterns.