ELISA Kit for Prolactin (PRL)

LTH; Luteotropic Hormone

Specificity

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

Recovery

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

Matrix Recovery range (%) Average(%)
serum(n=5) 88-104 96
EDTA plasma(n=5) 98-105 102
heparin plasma(n=5) 82-97 89

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Prolactin (PRL) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Prolactin (PRL) 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 Prolactin (PRL) 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) 88-96% 90-98% 82-97% 96-103%
EDTA plasma(n=5) 91-101% 94-105% 78-104% 86-101%
heparin plasma(n=5) 81-102% 88-95% 91-98% 93-101%

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 Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
Reagent Diluent 1×300µL Stop Solution 1×6mL
TMB Substrate 1×9mL Instruction manual 1
Wash Buffer (30 × concentrate) 1×20mL

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
The Journal of Biological Chemistry In Vivo Evidence for Epidermal Growth Factor Receptor (EGFR)-mediated Release of Prolactin from the Pituitary Gland Jcb: 39297
Journal of Clinical Neuroscience TLR9 expression is associated with prognosis in patients with glioblastoma multiforme ScienceDirect: S0967586811003572
Sensors and Actuators B: Chemical Determination of prolactin hormone in serum and urine using an electrochemical immunosensor based on poly(pyrrolepropionic acid)/carbon nanotubes hybrid modified electrodes Sciencedirect:S0925400514000720
Veterinary Word Effect of extended photoperiod during winter on growth and onset of puberty in Murrah buffalo heifers Pubmed:27051212
Journal of Dairy Science Effect of thermal stress on physiological, hormonal and haematological parameters in Tharparkar and Karan Fries calves publication:306322503
Stem Cell Research & Therapy Differentiation of human umbilical cord Wharton’s jelly-derived mesenchymal stem cells into endometrial cells pubmed:29096715
Stem Cell Research & Therapy The role of mesenchymal stem cells in chemotherapy-induced gonadotoxicity Pubmed:30021657
Frontiers in Molecular Neuroscience Impact of Triclosan on Female Reproduction through Reducing Thyroid Hormones to Suppress Hypothalamic Kisspeptin Neurons in Mice Pubmed:29403355
Toxicology and Applied Pharmacology The antipsychotics sulpiride induces fatty liver in rats via phosphorylation of insulin receptor substrate-1 at Serine 307-mediated adipose tissue insulin resistance Pubmed:29551354
Journal of Cellular Biochemistry The prolactin‐release inhibitor paeoniflorin suppresses proliferation and induces apoptosis in prolactinoma cells via the mitochondria‐dependent pathway Pubmed:29388711
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