The level of growth hormone and its norm

The level of HGH, which is a fairly popular pharmacological drug among athletes, is an indicator that is not a constant, but depends on the functional state of the endocrine system and the whole organism.

Factors influencing the secretion of GH

The norms of the Growth Hormone in adults and children vary significantly. In childhood and adolescence (from birth to 20 years), reference values are constantly changing, and in the adult remain relatively stable. However, this constancy is relatively, since with every ten years lived, the concentration of Somatropin in the blood serum imperceptibly drops by 10-15%. However, this value can vary under the influence of physiological or pathological factors.

Physiological factors

• Stressful situations;
• Daily rhythms of hormonal secretion;
• Increase or decrease in blood glucose;
• physical exercise;
• deep sleep;
• Effect of ghrelin (the so-called hormone of hunger), somatoliberin, etc.

Pathological factors

• Genetic defects in the development of the hypothalamic-pituitary system;
• Tissue resistance to the action of GH receptors;
• Acquired pathologies of the pituitary gland;
• infectious diseases;
• Vascular disorders;
• Injuries;
• Tumors of various parts of the brain;
• Chemotherapy and its consequences;
• Infiltrative diseases, etc.
• Growth hormone

Normal HGH:

• In an adult male - 0-3 ng / ml;
• The woman has 0-8ng / ml.

The parameters obtained by performing the radioimmunoassay analysis are 46-465 pmol / l.

Interpretation of the results is the prerogative of a specialist. This study should be carried out with extreme caution, since the Somatropin level is constantly variable, and to obtain the most objective results, it may take more than one study, and then the arithmetic mean is determined.

As a rule, a blood test for STG is not prescribed for general diagnostic examination. Indication for its conduct is a suspicion of a pathology of the pituitary gland or a violation of the production of the hormone itself. For bodybuilders, it is recommended to determine the level of GH before and after the combined course for muscle mass.