Human Total Serpin E1/PAI-1 Quantikine ELISA Kit Summary
Product Summary
Precision
Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Citrate Plasma
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (ng/mL) | 1.61 | 5.05 | 11.1 | 1.82 | 5.28 | 10 |
| Standard Deviation | 0.097 | 0.33 | 0.495 | 0.196 | 0.451 | 0.604 |
| CV% | 6 | 6.5 | 4.5 | 10.8 | 8.5 | 6 |
Recovery
The recovery of human Total Serpin E1 spiked to levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 105 | 90-119 |
| Citrate Plasma (n=4) | 104 | 87-118 |
| EDTA Plasma (n=4) | 99 | 85-113 |
| Heparin Plasma (n=4) | 103 | 81-116 |
| Serum (n=4) | 104 | 93-116 |
Linearity
Scientific Data
Product Datasheets
Preparation and Storage
Background: Serpin E1/PAI-1
The human serpin superfamily consists of at least 35 members that target not only serine proteases, but also selected cysteine proteases and non-protease proteins. Serpins bind the protease active site resulting in a major conformational rearrangement that traps the enzyme in a covalent acyl-enzyme intermediate. As protease inhibitors, serpins have an array of functions including regulating blood clotting, the complement pathway, extracellular matrix remodeling, and cell motility. They are also involved in activities that extend beyond their ability to inhibit proteases. For instance, they may also regulate blood pressure, angiogenesis, or act as storage/transport proteins.
Assay Procedure
Refer to the product- 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 50 µL of Assay Diluent to each well.
- Add 50 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
- Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.
- Add 200 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.
- Aspirate and wash 4 times.
- Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.
- Add 50 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
Citations for Human Total Serpin E1/PAI-1 Quantikine ELISA Kit
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.
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Citations: Showing 1 - 3
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Oxidative stress-induced endothelial dysfunction and decreased vascular nitric oxide in COVID-19 patients
Authors: V Montiel, I Lobysheva, L Gérard, M Vermeersch, D Perez-Morg, T Castelein, JB Mesland, P Hantson, C Collienne, D Gruson, MA van Dievoe, A Persu, C Beauloye, M Dechamps, L Belkhir, A Robert, M Derive, PF Laterre, AHJ Danser, X Wittebole, JL Balligand
EBioMedicine, 2022-02-23;77(0):103893.
Species: Human
Sample Types: Serum
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Endurance Training Depletes Antioxidant System but Does Not Affect Endothelial Functions in Women with Abdominal Obesity: A Randomized Trial with a Comparison to Endurance-Strength Training
Authors: M Jamka, P Bogda?ski, P Krzy?anows, A Mi?kiewicz, J Karolkiewi, M Du?-?uchow, R M?dry, A Lisowska, A Gotz-Wi?ck, S Iskakova, J Walkowiak, E M?dry
Journal of Clinical Medicine, 2021-04-12;10(8):.
Species: Human
Sample Types: Whole Blood
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Temporal trend of autonomic nerve function and HSP27, MIF and PAI-1 in type 1 diabetes
Authors: M Zimmerman, S Rolandsson, H Skärstrand, K Pourhamidi, A Gottsäter, P Wollmer, O Rolandsson, G Westergren, LB Dahlin
J Clin Transl Endocrinol, 2017-03-20;8(0):15-21.
Species: Human
Sample Types: Serum
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