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Multiplex Assay Kit for Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay)
CRH; Corticotropin Releasing Hormone; Corticoliberin
(Note: Up to 8-plex in one testing reaction)
- Product No.LMA835Ra
- Organism SpeciesRattus norvegicus (Rat) Same name, Different species.
- Sample TypeSerum, plasma and other biological fluids
- Test MethodCompetitive Inhibition
- Assay Length1.5h
- Detection Range0.98-1000pg/mL
- SensitivityThe minimum detectable dose of this kit is typically less than 0.327 pg/mL.
- DownloadInstruction Manual
- UOM 8Plex 7Plex 6Plex 5Plex 4Plex 3Plex 2Plex1Plex
- FOB
US$ 427
US$ 443
US$ 468
US$ 501
US$ 534
US$ 583
US$ 657
Result
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Specificity
This assay has high sensitivity and excellent specificity for detection of Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay).
No significant cross-reactivity or interference between Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay) and analogues was observed.
Recovery
Matrices listed below were spiked with certain level of recombinant Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.
Matrix | Recovery range (%) | Average(%) |
serum(n=5) | 85-99 | 93 |
EDTA plasma(n=5) | 82-92 | 87 |
heparin plasma(n=5) | 80-99 | 91 |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%
Linearity
The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Corticotropin Releasing Factor (CRF) ,etc. by FLIA (Flow Luminescence Immunoassay) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample | 1:2 | 1:4 | 1:8 | 1:16 |
serum(n=5) | 91-103% | 84-103% | 79-101% | 79-91% |
EDTA plasma(n=5) | 93-101% | 88-102% | 92-101% | 78-105% |
heparin plasma(n=5) | 85-97% | 95-102% | 79-97% | 95-102% |
Stability
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
Reagents and materials provided
Reagents | Quantity | Reagents | Quantity |
96-well plate | 1 | Plate sealer for 96 wells | 4 |
Pre-Mixed Standard | 2 | Standard Diluent | 1×20mL |
Pre-Mixed Magnetic beads (22#:CRF) | 1 | Analysis buffer | 1×20mL |
Pre-Mixed Detection Reagent A | 1×120μL | Assay Diluent A | 1×12mL |
Detection Reagent B (PE-SA) | 1×120μL | Assay Diluent B | 1×12mL |
Sheath Fluid | 1×10mL | Wash Buffer (30 × concentrate) | 1×20mL |
Instruction manual | 1 |
Assay procedure summary
1. Preparation of standards, reagents and samples before the experiment;
2. Add 50μL standard or sample to each well,
add 10μL magnetic beads,and 50μL Detection Reagent A,incubate 60min at 37°C on shaker;
3. Wash plate on magnetic frame for three times;
4. Add 100μL prepared Detection Reagent B, and incubate 30 min at 37°C on shaker;
5. Wash plate on magnetic frame for three times;
6. Add 100μL sheath solution, swirl for 2 minutes, read on the machine.
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Magazine | Citations |
Toxicology Letters | Regulation of corticosterone secretion is modified by PFOS exposure at different levels of the hypothalamic–pituitary–adrenal axis in adult male rats Pubmed:24440345 |
Bipolar?Disord. | Immune dysfunction in bipolar disorder and suicide risk: is there an association between peripheral corticotropin‐releasing hormone and interleukin‐1β? Pubmed:24862833 |
Peptides | Differential stress response in rats subjected to chronic mild stress is accompanied by changes in CRH-family gene expression at the pituitary level Pubmed:25236411 |
Ann Dermatol | Acute Stress-Induced Changes in Follicular Dermal Papilla Cells and Mobilization of Mast Cells:Implications for Hair Growth. pubmed:27746640 |
Neuroscience | Heat stress-induced neuroinflammation and aberration in monoamine levels in hypothalamus are associated with temperature dysregulation pubmed:28663093 |
Biomed Research International | Colonic Transit Time and Gut Peptides in Adult Patients with Slow and Normal Colonic Transit Constipation pubmed:29082242 |
Biochemical Pharmacology | Effects of n-3 PUFA enriched and n-3 PUFA deficient diets in naïve and Aβ-treated female rats Pubmed:30028991 |
Frontiers in Pharmacology | Vaccinium bracteatum Leaf Extract Reverses Chronic Restraint Stress-Induced Depression-Like Behavior in Mice: Regulation of Hypothalamic-Pituitary … Pubmed:30038568 |
Toxicology Letters | Perfluorooctane sulfonate (PFOS) can alter the hypothalamic-pituitary-adrenal (HPA) axis activity by modifying CRF1 and glucocorticoid receptors Pubmed:29807116 |
Neuropsychiatric disease and treatment | The depressive-like behaviors of chronic unpredictable mild stress-treated mice, ameliorated by Tibetan medicine Zuotai: involvement in the hypothalamic … Pubmed:29379286 |
BMC Veterinary Research | Hypothalamus-pituitary-adrenal axis involves in anti-viral ability through regulation of immune response in piglets infected by highly pathogenic porcine … Pubmed:29540178 |
Bioscience Research | Bioscience Research |
FASEB Journal | Contribution of DNA methylation in chronic stress–induced cardiac remodeling and arrhythmias in mice Pubmed: 31431066 |
Aging Cell | Altered glucocorticoid metabolism represents a feature of macroph‐aging Pubmed: 32463582 |
Endocr J | Impairment of CRH in the intestinal mucosal epithelial barrier of pregnant Bama miniature pig induced by restraint stress 33408312 |
CRYOBIOLOGY | O-GlcNAc/Akt pathway regulates glucose metabolism and reduces apoptosis in liver of piglets with acute cold stress 33651993 |