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Growth hormones

Complete testing portfolio
All three critical markers (hGH, IGF-1, IGFBP-3)

Technical superiority
No pegvisomant interference, detects only 22 kDa hGH

Extensive global reference ranges
Adult and pediatric reference ranges stratified by Tanner stages3-5

Clinical compliance
WHO-calibrated, consensus guideline adherent

Background

Growth hormone (GH) plays a critical role in regulating growth, metabolism, and body composition. Produced by the anterior pituitary gland of the brain, its secretion is highly regulated through feedback mechanisms in response to sleep, exercise, stress, nutrition, and growth hormone concentration itself.1 Growth hormone acts directly on nearly every tissue and organ in the body, and indirectly via the actions of another hormone, Insulin-like Growth Factor-1 (IGF-1), which is secreted by cells of the liver in response to growth hormone binding its respective surface receptors.1 Both growth hormone and insulin-like growth factor-1 work together to induce growth of peripheral tissues, most notably, bone, muscle, and cartilage in the years of adolescence.1

Diagnostics

Disorders of the growth hormone axis, such as acromegaly, gigantism, and GH deficiency in childhood, adolescence, and adulthood, are commonly determined by measuring levels of growth hormone during a growth hormone stimulation or growth hormone suppression test, in conjunction with measuring Insulin-like Growth Factor-1 (IGF-1) and/or Insulin-like Growth Factor Binding Protein-3 (IGFBP-3). These hormones play an important role in both the diagnosis of disease and the monitoring of treatment. Several consensus statements published over the last decade have established how to utilize and interpret these parameters in clinical practice.2

Euroimmun has a comprehensive growth laboratory profile, including growth hormone, insulin-like growth factor-1, and insulin-like growth factor binding protein-3, to support the identification and evaluation of growth disorders, pituitary function, and other endocrine disorders.

Product Description

  • Fully compliant with Consensus Guidelines2
  • Calibrated against WHO IS 02/543
  • Extensive global reference ranges and Tanner stages3-5
  • Assay-specific cutoffs6-10
  • No cross-reactivity with 20kD hGH, placental hGH, or pegvisomant6
  • Reference range SD calculation available
  • Fully automated quantitative determination of growth hormones

 

With the largest reference ranges published for both our IGF-1 and IGFBP-3 assays and full integration with random-access ChLIA platforms (e.g. IDS-iSYS, IDS-i10, etc.), you can be sure your testing both is reliable and time-efficient. We even offer the SDSpeed Calc software to aid clinicians in determining the SD-score from IGF-1 and IGFBP-3 measurements.

References

  1. Brinkman, J. E., Tariq, M. A., Leavitt, L. & Sharma, S. Physiology, Growth Hormones.  (StatPearls Publishing, Treasure Island (FL), 2023).
  2. Clemmons, D. R. Consensus statement on the standardization and evaluation of growth hormone and insulin-like growth factor assays. Clin Chem 57, 555-559, doi:10.1373/clinchem.2010.150631 (2011).
  3. Bidlingmaier, M. et al. Reference intervals for insulin-like growth factor-1 (igf-i) from birth to senescence: results from a multicenter study using a new automated chemiluminescence IGF-I immunoassay conforming to recent international recommendations. J Clin Endocrinol Metab 99, 1712-1721, doi:10.1210/jc.2013-3059 (2014).
  4. Bidlingmaier, M. et al. Differences in the Distribution of IGF-I Concentrations Between European and US Populations. J Endocr Soc 6, bvac081, doi:10.1210/jendso/bvac081 (2022).
  5. Friedrich, N. et al. Age- and sex-specific reference intervals across life span for insulin-like growth factor binding protein 3 (IGFBP-3) and the IGF-I to IGFBP-3 ratio measured by new automated chemiluminescence assays. J Clin Endocrinol Metab 99, 1675-1686, doi:10.1210/jc.2013-3060 (2014).
  6. Manolopoulou, J. et al. Automated 22-kD growth hormone-specific assay without interference from Pegvisomant. Clin Chem 58, 1446-1456, doi:10.1373/clinchem.2012.188128 (2012).
  7. Schillbach, K et al. Determinants of the growth hormone nadir during oral glucose tolerance test in adults Eur J Endocrinol 181(1):55-67. doi: 10.1530/EJE-19-0139 (2019).)
  8. Klose, M. et al. Prevalence of Posttraumatic Growth Hormone Deficiency Is Highly Dependent on the Diagnostic Set-up: Results From The Danish National Study on Posttraumatic Hypopituitarism. J Clin Endocrinol Metab 99, 101-110. doi: 10.1210/jc.2013-2397. (2014).
  9. Wagner IV, et al. Clinical evidence-based cutoff limits for GH stimulation tests in children with a backup of results with reference to mass spectrometry. Eur J Endocrinol 171, 389-397. doi: 10.1530/EJE-14-0165. (2014).
  10. Deutschbein T, et al. Anthropometric factors have significant influence on the outcome of the GHRH-arginine test: establishment of normative data for an automated immunoassay specifically measuring 22 kDa human growth hormone. Eur J Endocrinol 176, 271-281. doi: 10.1530/EJE-16-0668. (2016).

Growth hormone products

For in vitro diagnostic use.

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