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ELISA Kit for Apelin 36 (AP36)

APLN36

Specificity

This assay has high sensitivity and excellent specificity for detection of Apelin 36 (AP36).
No significant cross-reactivity or interference between Apelin 36 (AP36) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Apelin 36 (AP36) and the recovery rates were calculated by comparing the measured value to the expected amount of Apelin 36 (AP36) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 87-101 90
EDTA plasma(n=5) 78-102 89
heparin plasma(n=5) 78-93 85

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Apelin 36 (AP36) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Apelin 36 (AP36) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Apelin 36 (AP36) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 94-101% 91-105% 98-105% 81-92%
EDTA plasma(n=5) 78-91% 96-103% 86-93% 87-105%
heparin plasma(n=5) 91-98% 92-105% 82-96% 92-101%

Stability

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
TMB Substrate 1×9mL Stop Solution 1×6mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 50µL standard or sample to each well.
    And then add 50µL prepared Detection Reagent A immediately.
    Shake and mix. Incubate 1 hour at 37°C;
3. Aspirate and wash 3 times;
4. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
5. Aspirate and wash 5 times;
6. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C;
7. Add 50µL Stop Solution. Read at 450 nm immediately.

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Magazine Citations
European Journal of Obstetrics & Gynecology and Reproductive Biology Apelin levels in relation with hormonal and metabolic profile in patients with polycystic ovary syndrome ScienceDirect: S0301211514000931
Eur J Obstet Gynecol Reprod Biol. Apelin?levels?in?relation?with?hormonal?and metabolic profile in patients with polycystic ovary syndrome. Pubmed:24642195
J Obstet Gynaecol Res. Apelin?levels are higher in obese patients with?endometrial?cancer. Pubmed:25160885
Disease Markers Apelin and Atrial Fibrillation: The Role in the Arrhythmia Recurrence Prognosis Pubmed:29721104
Clinical and Experimental Hypertension Serum concentrations of apelin-17 isoform vary in accordance to blood pressure categories in individuals with obesity class 3 Pubmed:29652188
Acta Cardiologica Sinica The Relationship between Serum Apelin Levels and the Severity of Calcific Aortic Stenosis Pubmed:29844647
Disease Markers Find the Essence through the Phenomena: Cardiovascular Diseases and Biomarkers Pubmed: 30034556
Catalog No. Related products for research use of Rattus norvegicus (Rat) Organism species Applications (RESEARCH USE ONLY!)
CEB865Ra ELISA Kit for Apelin 36 (AP36) Enzyme-linked immunosorbent assay for Antigen Detection.