Human TFPI Quantikine ELISA Kit Summary
Product Summary
Precision
Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Citrate Plasma, Urine
Intra-Assay Precision | Inter-Assay Precision | |||
---|---|---|---|---|
Sample | 1 | 2 | 3 | 1 |
n | 20 | 20 | 20 | 40 |
Mean (pg/mL) | 299 | 554 | 1108 | 301 |
Standard Deviation | 13.5 | 22.2 | 40.3 | 18.5 |
CV% | 4.5 | 4 | 3.6 | 6.1 |
Recovery
The recovery of TFPI spiked to three different levels in samples throughout the range of the assay in various matrices was evaluated.
Sample Type | Average % Recovery | Range % |
---|---|---|
Cell Culture Media (n=4) | 92 | 85-100 |
Urine (n=4) | 94 | 85-106 |
Linearity
Scientific Data
Product Datasheets
Preparation and Storage
Background: TFPI
Tissue Factor Pathway Inhibitor (TFPI) is a key regulator of the extrinsic coagulation pathway. It inhibits coagulation through the formation of a quaternary complex with Coagulation Factor X, Coagulation Factor III/Tissue Factor, and Coagulation Factor VII, thereby preventing the activation of Factor X. TFPI also exhibits anti-angiogenic and anti-metastatic effects. It is produced by vascular endothelial cells and circulates as a free molecule, on platelet surfaces, and in complex with LDL and HDL particles. Abnormal TFPI concentrations in the circulation are associated with thrombosis, disseminated intravascular coagulation, and sepsis. TFPI can enhance anti-thrombotic treatment in sepsis, inflammatory diseases, and cardiovascular diseases.
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 100 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 on a horizontal orbital microplate shaker.
- 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 1 hour on the shaker.
- Aspirate and wash 4 times.
- Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes on the benchtop. 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 TFPI 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.
12
Citations: Showing 1 - 10
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Activated protein C, protein S, and tissue factor pathway inhibitor cooperate to inhibit thrombin activation
Authors: Li, X;Song, X;Mahmood, DFD;Sim, MMS;Bidarian, SJ;Wood, JP;
Thrombosis research
Species: Human
Sample Types: Plasma
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The Role of NETosis and Complement Activation in COVID-19-Associated Coagulopathies
Authors: Ghanbari, EP;Jakobs, K;Puccini, M;Reinshagen, L;Friebel, J;Haghikia, A;Kr�nkel, N;Landmesser, U;Rauch-Kr�hnert, U;
Biomedicines
Species: Human
Sample Types: Plasma
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Different Profiles of Cytokines, Chemokines and Coagulation Mediators Associated with Severity in Brazilian Patients Infected with Dengue Virus
Authors: VE Fiestas So, NR da Costa F, CF Dos Santos, G Corrêa, MDC Cipitelli, M Dornelas R, LJ de Souza, PV Damasco, RV da Cunha, FB Dos Santos, LM de Oliveir, EL de Azeredo
Viruses, 2021-09-08;13(9):.
Species: Human
Sample Types: Plasma
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Postprandial factor VII activation does not increase plasma concentrations of prothrombin fragment 1�+�2 in patients with morbid obesity
Authors: LE Landgrebe, CB Juhl, V Andersen, L Moitinho-S, C Bang, EM Bladbjerg
Thromb. Res., 2020-09-01;196(0):260-267.
Species: Human
Sample Types: Serum
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Testosterone treatment and association with thrombin generation and coagulation inhibition in Klinefelter syndrome: A cross-sectional study
Authors: S Chang, D Biltoft, A Skakkebæk, J Fedder, A Bojesen, MV Bor, CH Gravholt, AB Münster
Thromb. Res., 2019-08-19;182(0):175-181.
Species: Human
Sample Types: Plasma
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Dual inhibition of thrombin and activated factor X attenuates disseminated intravascular coagulation and protects organ function in a baboon model of severe Gram-negative sepsis
Authors: H Schöchl, M van Griens, S Heitmeier, V Laux, U Kipman, J Roodt, S Bahrami, H Redl
Crit Care, 2017-03-13;21(1):51.
Species: Primate - Papio ursinus (Chacma baboon)
Sample Types: Plasma
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Increased circulating procoagulant and anticoagulant factors as TF and TFPI according to severity or infecting serotypes in human dengue infection
Authors: E Leal de Az, VE Solórzano, DB de Oliveir, CF Marinho, LJ de Souza, RV da Cunha, PV Damasco, CF Kubelka, LM de-Oliveir
Microbes Infect, 2016-08-31;19(1):62-68.
Species: Human
Sample Types: Plasma
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MiR-205 and MiR-373 Are Associated with Aggressive Human Mucinous Colorectal Cancer
Authors: Annette Eyking
PLoS ONE, 2016-06-06;11(6):e0156871.
Species: Human
Sample Types: Cell Culture Supernates
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Tissue factor is induced by interleukin-33 in human endothelial cells: a new link between coagulation and inflammation
Sci Rep, 2016-05-04;6(0):25171.
Species: Human
Sample Types: Cell Culture Supernates
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The C-terminus of tissue factor pathway inhibitor alpha is required for its interaction with factors V and Va.
J. Thromb. Haemost., 2012-09-01;10(9):1944-6.
Species: Human
Sample Types: Plasma
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TFPIbeta is the GPI-anchored TFPI isoform on human endothelial cells and placental microsomes.
Authors: Girard TJ, Tuley E, Broze GJ
Blood, 2011-12-05;119(5):1256-62.
Species: Human
Sample Types: Cell Culture Supernates
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Venous thrombosis associated with gene deletion of tissue factor pathway inhibitor.
Authors: Kentsis A, Bradwin G, Miller DT, Trenor CC
Am. J. Hematol., 2009-11-01;84(11):775-6.
Species: Human
Sample Types: Plasma
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