Pros of priming in the diagnosis of growth hormone deficiency

E Nazli Gonc1, Alev Ozon, Ayfer Alikasifoglu

  • 1Department of Pediatric Endocrinology, Hacettepe University Faculty of Medicine, Ankara, Turkey. ngonc@hacettepe.edu.tr

Insights

Priming with sex steroids aids in diagnosing growth hormone deficiency (GHD) in children. However, its effectiveness in improving final height outcomes requires further investigation.

Area of Science:

  • Pediatric Endocrinology
  • Growth Hormone Physiology
  • Diagnostic Testing

Background:

  • The diagnosis of growth hormone deficiency (GHD) in children often relies on provocative testing.
  • The use of priming with sex steroids before growth hormone (GH) stimulation tests is a debated topic in pediatric endocrinology.

Observation:

  • While some evidence suggests priming enhances GHD diagnostic accuracy in childhood, its clinical impact is not fully established.
  • Studies examining final height or height gain in growth-restricted children treated with GH after subnormal stimulation tests have yielded inconsistent results.

Findings:

  • This review synthesizes existing literature on priming strategies for GH stimulation tests.
  • The utility of priming as a method to improve the diagnostic capacity of GH stimulation tests is critically analyzed.

Implications:

  • Clarifying the role of priming can optimize GHD diagnosis and subsequent treatment decisions in pediatric patients.
  • Further research is needed to determine if priming influences long-term growth outcomes in children treated for GHD.

Related Concept Videos

Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
Myasthenia Gravis: Diagnostic Tests01:15

Myasthenia Gravis: Diagnostic Tests

Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
Major Hormones and Their Functions01:27

Major Hormones and Their Functions

Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and lactation.
Signs of Puberty01:27

Signs of Puberty

Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
Hormones of the Pituitary Gland01:27

Hormones of the Pituitary Gland

The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...