RayBio® Human Leptin ELISA Kit for cell culture supernatants, plasma, and serum samples.

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Catalog #:
ELH-Leptin
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Product Description

Specifications

Size 1 Plate Kit, 2 Plate Kit, 5 Plate Kit
Species Human
Accession Number P41159
Gene Id 3952
Gene Symbols LEP|OB|OBS
Protein Name / Synonyms Leptin (Obese protein) (Obesity factor)
Quantitative/Semi-Quantitative Quantitative
Specificity The Leptin ELISA kit shows no cross-reactivity with any of the cytokines tested: Human Angiogenin, BDNF, BLC, ENA-78, FGF-4, IL-1 alpha, IL-1 beta, IL-2, IL-3, IL-4, IL-5, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12 p70, IL-12 p40, IL-13, IL-15, I-309, IP-10, G-CSF, GM-CSF, IFN-gamma, MCP- 1, MCP-2, MCP-3, MDC, MIP-1 alpha, MIP-1 beta, MIP-1 delta, PARC, PDGF, RANTES, SCF, TARC, TGF-beta, TIMP-1, TIMP-2, TNF-alpha, TNF-beta, TPO, VEGF.
Compatible Sample Types Cell Culture Supernatants, Plasma, Serum
Solid Support 96-well Microplate
Method Of Detection Colorimetric
Design Principle Sandwich-based
Sensitivity 2 pg/ml

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Detection Range 2 pg/ml - 400 pg/ml
Estimated Lead Time 1-2 business days
Shipping Type Blue ice
Storage ≤-20°C

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Target Background

Leptin is a 16 kDa protein hormone that plays a key role in regulating energy intake and energy expenditure, including appetite and metabolism. It is one of the most important adipose derived hormones. It is manufactured primarily in the adipocytes of white adipose tissue, and the level of circulating leptin is directly proportional to the total amount of fat in the body.

Product Features

Additional Notes
  • Strip plates and additional reagents allow for use in multiple experiments
  • Quantitative protein detection
  • Establishes normal range
  • The best products for confirmation of antibody array data

Standard Curves

Spiking & Recovery Results

Linearity Results

Application Notes

Kit Components
  • Pre-Coated 96-well Strip Microplate
  • Wash Buffer
  • Stop Solution
  • Assay Diluent(s)
  • Lyophilized Standard
  • Biotinylated Detection Antibody
  • Streptavidin-Conjugated HRP
  • TMB One-Step Substrate
Other Materials Required
  • Distilled or deionized water
  • Precision pipettes to deliver 2 µl to 1 µl volumes
  • Adjustable 1-25 µl pipettes for reagent preparation
  • 100 µl and 1 liter graduated cylinders
  • Tubes to prepare standard and sample dilutions
  • Absorbent paper
  • Microplate reader capable of measuring absorbance at 450nm
  • Log-log graph paper or computer and software for ELISA data analysis
Protocol Outline
  1. Prepare all reagents, samples and standards as instructed in the manual.
  2. Add 100 µl of standard or sample to each well.
  3. Incubate 2.5 h at RT or O/N at 4°C.
  4. Add 100 µl of prepared biotin antibody to each well.
  5. Incubate 1 h at RT.
  6. Add 100 µl of prepared Streptavidin solution to each well.
  7. Incubate 45 min at RT.
  8. Add 100 µl of TMB One-Step Substrate Reagent to each well.
  9. Incubate 30 min at RT.
  10. Add 50 µl of Stop Solution to each well.
  11. Read at 450 nm immediately.

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Storage/Stability

The entire kit may be stored at -20°C for up to 1 year from the date of shipment. Avoid repeated freeze-thaw cycles. The kit may be stored at 4°C for up to 6 months. For extended storage, it is recommended to store at -80°C.
Hoo SP, Loh QL, Yue Z, et al. Preparation of a soft and interconnected macroporous hydroxypropyl cellulose methacrylate scaffold for adipose tissue engineering. J Mater Chem B. 2013 May 20; [Epub ahead of print] doi:10.1039/C3TB00446E
Species:
Human
Sample Type:
Conditioned Media (ASCs (adipose-derived stem cells))
Labayen, Idoia, et al. "Sexual dimorphism in the early life programming of serum leptin levels in European adolescents: the HELENA study." The Journal of Clinical Endocrinology & Metabolism 96.8 (2011): E1330-E1334.
Species:
Human
Sample Type:
Serum
Labayen, I., et al. "Association between the FTO rs9939609 polymorphism and leptin in European adolescents: a possible link with energy balance control. The HELENA study." International Journal of Obesity 35.1 (2011): 66-71.
Species:
Human
Sample Type:
Serum
Lin Y., et al. Dietary fiber intake and its association with indicators of adiposity and serum biomarkers in European adolescents: the HELENA study. European Journal of Nutrition August 2014, Epub Ahead of Print. DOI 10.1007/s00394-014-0756-2
Species:
Human
Sample Type:
Serum (HELENA Study)
Schneiderman J., Schaefer K., Kolodgie F., et al. Leptin locally synthesized in carotid atherosclerotic plaques could be associated with lesion instability and cerebral emboli. J Am Heart Assoc. 2012 Oct;1(5):e001727. doi: 10.1161/JAHA.112.001727.
Species:
Human
Sample Type:
Conditioned Media (Human Aortic and Saphenous Vein cell cultures treated with TNFa or LTA)
Volberg V., Harley KG., Aguilar RS., et al. Associations between perinatal factors and adiponectin and leptin in 9-year-old Mexican-American children. Pediatr Obes. 2013 Dec;8(6):454-63. doi: 10.1111/j.2047-6310.2012.00127.x.
Species:
Human
Sample Type:
Plasma (the standard curve was narrowed)
Badler M., Reitmayer C., Arndt C., et al. Age dependency of estrogen responsiveness in the uterus and adipose tissue of aromatase-knockout (ArKO) mice. J Steroid Biochem Mol Biol. 2012 Jan;128(1-2):29-37. doi: 10.1016/j.jsbmb.2011.09.009
Species:
Mouse
Sample Type:
Plasma (Armotase knockout mice)
Rathore S., Bidwai A. Association of Insulin Resistance and Selected Adipokines in Cardiovascular Disease with and without Metabolic Syndrome. JMSCR Volume 2, Issue 5, Pages 1176-1186, May 2014
Species:
Human
Sample Type:
Serum
Jimenez-Pavon D., Ortega F., Artero E., et al. Physical activity, fitness, and serum leptin concentrations in adolescents. J Pediatr. 2012 Apr;160(4):598-603.e2. doi: 10.1016/j.jpeds.2011.09.058.
Species:
Human
Sample Type:
Serum (Physical activity and leptin levels)
Labayen, Idoia, et al. "The effect of ponderal index at birth on the relationships between common LEP and LEPR polymorphisms and adiposity in adolescents." Obesity 19.10 (2011): 2038-2045.
Species:
Human
Sample Type:
Serum
  1. Great product
    Rating
    100%
    Easy to use. Got results. Will recommend

    Review by

    from SUNY Downstate,

    on

  2. Great product
    Rating
    80%
    This assay works well with good dilutional linearity in human and monkey serum matrix

    Review by

    from Gilead Sciences,

    on

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