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Human NES1(Nesfatin 1) ELISA Kit

  • Cat.No.:E-EL-H2373

  • Reactivity: Human

To Purchase E-EL-H2373

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609
Qty:

Product Details

Properties

Assay type Sandwich-ELISA
Format 96T/48T/24
Assay time 3.5h
Detection range 15.63-1000 pg/mL
Sensitivity 9.38 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human NES1 in samples. No significant cross-reactivity or interference between Human NES1 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 Human NES1 concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human NES1. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human NES1 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human NES1, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human NES1. You can calculate the concentration of Human NES1 in the samples 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.
ItemSpecificationsStorage
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 12 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), 12 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 12 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°C
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 Human NES1 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human NES1 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 (pg/mL) 51.80 141.45 380.38 49.78 145.73 387.06
Standard deviation 2.87 6.86 19.86 3.35 8.39 20.20
CV (%) 5.54 4.85 5.22 6.73 5.76 5.22

Recovery

The recovery of Human NES1 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) 94-109 100
EDTA plasma (n=8) 94-109 99
Cell culture media (n=8) 91-107 99

Linearity

Samples were spiked with high concentrations of Human NES1 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt:   P80303
Research AreaEpigenetics and Nuclear Signaling, Signal transduction

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. Archives of Rheumatology (2020) IF: 0.731
    Is there any association between low level of serum nesfatin-1 and fibromyalgia syndrome?

    DOI: 10.46497/ArchRheumatol.2021.7736

    Sample: Serum
  2. NORDIC JOURNAL OF PSYCHIATRY (2020) IF: 1.78
    Serum nesfatin-1, ghrelin, and lipid levels in adolescents with first episode drug naïve unipolar depression

    DOI: 10.1080/08039488.2020.1772363

    Sample: Serum
  3. NEUROLOGICAL SCIENCES (2019) IF: 2.484
    The association of low levels of nesfatin-1 and glucagon-like peptide-1 with oxidative stress in Parkinson’s disease

    DOI: 10.1007/s10072-019-03975-4

    Sample: Serum
  4. PSYCHIATRY RESEARCH (2017) IF: 2.528
    The association of serum nesfatin-1 and ghrelin levels with metabolic syndrome in patients with schizophrenia

    DOI: 10.1016/j.psychres.2017.12.041

    Sample: Serum
  5. NEUROPEPTIDES (2022) IF: 3.286
    Altered levels of neurobiological biomarkers at the interface of depression and gestational diabetes mellitus in Asian Indian women

    DOI: 10.1016/j.npep.2022.102245

    PMID: 35461022

    Sample: Plasma
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