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PTD(Pentosidine) ELISA Kit

Cat.No.:E-EL-0091
Reactivity: Universal

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96T
48T
24T
96T*5
96T*10

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Product Details

Properties

Assay type	Competitive-ELISA
Format	96T/48T
Assay time	2.0h
Detection range	0.78-50 ng/mL
Sensitivity	0.47 ng/mL
Sample type &Sample volume	serum, plasma and other biological fluids; 50μL
Specificity	This kit recognizes PTD in samples. No significant cross-reactivity or interference between PTD and analogues was observed.
Reproducibility	Both intra-CV and inter-CV are < 10%.
Application	This ELISA kit applies to the in vitro quantitative determination of PTD concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with PTD. During the reaction, PTD in the sample or standard competes with a fixed amount of PTD on the solid phase supporter for sites on the Biotinylated Detection Ab specific to PTD. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of PTD in tested samples can be calculated by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.

Item	Specifications	Storage
Micro ELISA Plate(Dismountable)	96T: 8 wells ×12 strips 48T: 8 wells ×6 strips	-20℃, 6 months
Reference Standard	96T: 2 vials 48T: 1 vial
Concentrated Biotinylated Detection Ab (100×)	96T: 1 vial, 120 μL 48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×)	96T: 1 vial, 120 μL 48T: 1 vial, 60 μL	-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent	1 vial, 20 mL	2-8°C, 6 months
Biotinylated Detection Ab Diluent	1 vial, 14 mL
HRP Conjugate Diluent	1 vial, 14 mL
Concentrated Wash Buffer (25×)	1 vial, 30 mL
Substrate Reagent	1 vial, 10 mL	2-8℃(Protect from light)
Stop Solution	1 vial, 10 mL	2-8℃
Plate Sealer	5 pieces
Manual	1 copy
Certificate of Analysis	1 copy

Technical Data

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level PTD were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level PTD were tested on 3 different plates, 20 replicates in each plate.

	Intra-assay Precision			Inter-assay Precision
Sample	1	2	3	1	2	3
n	20	20	20	20	20	20
Mean (ng/mL)	46.30	106.10	442.50	44.00	106.60	426.90
Standard deviation	2.60	5.10	23.90	2.30	4.70	21.80
CV (%)	5.62	4.81	5.40	5.23	4.41	5.11

Recovery

The recovery of PTD spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type	Range (%)	Average Recovery (%)
Serum(n=8)	92-106	100
EDTA plasma(n=8)	89-103	96
Cell culture media(n=8)	86-97	92

Linearity

Samples were spiked with high concentrations of PTD and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Research Area

Metabolism

Assay Procedures

	1. Add 50μL standard or sample to the wells, immediately add 50μL Biotinylated Detection Ab working solution to each well. Incubate for 45 min at 37°C
	2. Aspirate and wash the plate for 3 times
	3. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times
	4. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C
	5. Add 50μL Stop Solution
	6. Read the plate at 450nm immediately. Calculation of the results

Citations

Cells (2021) IF: 6.6
Advanced Glycation End-Products (AGEs) and Their Soluble Receptor (sRAGE) in Women Suffering from Systemic Lupus Erythematosus (SLE)

DOI: 10.3390/cells10123523

Sample: serum
Frontiers in Endocrinology (2022) IF: 5.555
Receptors of Advanced Glycation End Product (RAGE) Suppression Associated With a Preserved Osteogenic Differentiation in Patients With Prediabetes

DOI: 10.3389/fendo.2022.799872

PMID: 35237235
Sample: serum
Frontiers in Endocrinology (2021) IF: 5.555
Age-Influenced Receptors of Advanced Glycation End Product Overexpression Associated With Osteogenic Differentiation Impairment in Patients With Type 2 Diabetes

DOI: 10.3389/fendo.2021.726182

PMID: 34512554
Sample: serum
Scientific Reports (2023) IF: 4.996
The trajectory of osteoblast progenitor cells in patients with type 2 diabetes and the predictive model for their osteogenic differentiation ability

DOI: 10.1038/s41598-023-29677-8

Sample: blood
JOURNAL OF BONE AND MINERAL METABOLISM (2016) IF: 2.312
Impaired osteogenic differentiation and enhanced cellular receptor of advanced glycation end products sensitivity in patients with type 2 diabetes

DOI: 10.1007/s00774-016-0800-9

Sample: serum

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