Mouse Myeloperoxidase ELISA Kit
Protocol Booklet
Key features and details
- Specification:
- Sensitivity:
- Standard Curve Range:
- Standard Curve Gradient:
- Number of Incubations:
- Sample Volume:
- Assay type:
- Operation Duration:
-
Brand:
CAT.NO. : AEM0030
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Size:
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Product Details
Background
Myeloperoxidase (MPO) is a heme-containing enzyme belonging to the XPO subfamily of peroxidases. It is an abundant neutrophil and monocyte glycoprotein that catalyzes the hydrogen peroxide dependent formation of hypochlorus acid (HOCl) and other reactive species. Enzymatically active MPO is a disulfide-linked tetramer that contains two heme groups and two copies each of the heavy and light chains. MPO binds Albumin, MMR, Cytokeratin 1 on vascular endothelial cells, HMW Kininogen, and Integrin CD11b/CD18 on neutrophils. These interactions promote MPO clearance, a reduction of nitric oxide and bradykinin levels, reduced vasodilation, and continued neutrophil activation. Neutrophil MPO is stored in cytoplasmic azurophilic granules. Upon cellular activation and degranulation, MPO is delivered into phagosomes where it is required for the killing of phagocytosed bacteria. Activated neutrophils also release granule contents extracellularly. Elevated plasma MPO levels have been associated with a variety of clinical conditions including systemic inflammation, eclampsia, risk of cardiovascular events, vascular endothelial dysfunction, severity of multiple sclerosis, and prospective mortality and oxidative stress during hemodialysis.
Typical data
| pg/ml | O.D. | Average | Corrected | |
| 0.00 | 0.0213 | 0.0192 | 0.0203 | |
| 0.14 | 0.0285 | 0.0280 | 0.0283 | 0.0080 |
| 0.41 | 0.0525 | 0.0505 | 0.0515 | 0.0312 |
| 1.23 | 0.1142 | 0.1285 | 0.1214 | 0.1011 |
| 3.70 | 0.2889 | 0.2755 | 0.2822 | 0.2619 |
| 11.11 | 0.7461 | 0.7085 | 0.7273 | 0.7070 |
| 33.33 | 1.6370 | 1.5500 | 1.5935 | 1.5732 |
| 100.00 | 2.5460 | 2.4060 | 2.4760 | 2.4557 |
Precision
| Intra-assay Precision | Inter-assay Precision | |||||
| Sample Number | S1 | S2 | S3 | S1 | S2 | S3 |
| 22 | 22 | 22 | 6 | 6 | 6 | |
| Average(ng/ml) | 9.6 | 3.7 | 1.1 | 10 | 4.1 | 1.1 |
| Standard Deviation | 0.7 | 0.3 | 0.1 | 0.6 | 0.2 | 0.1 |
| Coefficient of Variation(%) | 6.9 | 7.0 | 8.0 | 6.5 | 5.8 | 5.8 |
Intra-assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-assay Precision (Precision between assays) Three samples of known concentration were tested six times on one plate to assess intra-assay precision.
Spike Recovery
The spike recovery was evaluated by spiking 3 levels of mouse Myeloperoxidase into health mouse serum sample. The un-spiked serum was used as blank in this experiment.
The recovery ranged from 100% to 129% with an overall mean recovery of 117%.
The recovery ranged from 100% to 129% with an overall mean recovery of 117%.
Sample Values
| Sample Matrix | Sample Evaluated | Range (pg/ml) | Detectable (%) | Mean of Detectable (pg/ml) |
| Serum | 30 | 31.55-52.87 | 100 | 45.23 |
Serum/Plasma – Thirty samples from apparently healthy mice were evaluated for the presence of Myeloperoxidase in this assay. No medical histories were available for the donors. n.d. = non-detectable. Samples measured below the sensitivity are considered to be non-detectable.
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