Rate of TSH for men age dependent (table)
Thyroid-stimulating hormone or TSH in men plays an important role. It is produced by cells of the pituitary gland and its action is directed on regulation of thyroid function. As is known, this gland of internal secretion is responsible for most metabolic processes and metabolism of various substances in the body. Let us consider what are the functions of thyroid stimulating hormone (TSH), what should be its norm, given the age and what the symptoms are and what happens in the male body, when its level is lowered or raised.
Functions and performance standards
TSH (thyrotropin) provides stimulation of the secretory function of the thyroid gland. In response to the entry into circulation of thyroid-stimulating hormone gland begins to synthesize T3 (triiodothyronine) and T4 (thyroxine). T4 is a less active form, as a result of the transformation and cleavage of one molecule of iodine is formed over the active form – T3. In General, the thyrotropin (TSH) has the following effects:
- Stimulation of the synthesis of thyroid hormones.
- The increase in the number of cells of type A, namely those that are responsible for the production of thyroxine and triiodothyronine.
The norm and the balance of thyroid hormones is controlled by thyrotropin (TSH). The mechanism of regulation of synthesis and secretion of T3 and T4 occurs in the feedback. That is, when the level of these hormones in the blood is elevated, the pituitary gland receives a signal about the need to reduce production of TSH (thyrotropin) to avoid extra stimulation of the thyroid gland. Conversely, if the level of T3 and T4 lowered, then this means that a blood test will show elevated levels of TSH (thyrotropin). Due to this correlation of the concentrations of biologically active substances in the blood could help diagnose pathological conditions of the endocrine glands at different ages. Indispensable for this is a blood test for hormones. In addition, important diagnostic role of antibodies to structural elements of the thyroid gland or the hormone receptors. Most frequently in autoimmune thyroiditis reveal the following antibodies:
- Antibodies to the enzyme thyroid peroxidase.
- Antibodies located on the cell membranes of the receptors for thyrotropin (TSH).
- Antibodies to the protein thyroglobulin.
It is worth noting that antibodies in low concentrations is the norm. Because occasionally they are formed in the body, but their low level does not cause any symptoms. With age, their number may increase. Antibodies to receptors observed in graves disease. The norm means that antibodies to the receptor should not exceed 1.5 IU/L.
Elevated levels of thyroid-stimulating hormone (TSH)observed on the background of low level of thyroxine and triiodothyronine, which indicates blood. Elevated TSH levels and when T4, T3 reduced at different ages cause the following symptoms:
- Weakness, fatigue, drowsiness.
- The deterioration of the skin, developing dryness, it becomes dull and takes on a pale shade.
- Hair thinning, there is a tendency to hair loss.
- Brittle and thinning nails.
- Slowing of the heart rate.
- The tendency to reduce blood pressure.
- Weight gain.
- Good tolerance of cold.
- Slowing peristalsis, resulting in the development of constipation.
- The decreased concentration, memory impairment.
- Muscle weakness.
Elevated levels may not only indicate thyroid disease, but also to develop as a result of primary lesion of the pituitary gland. Often the reason that it is promoted, is a tumor of the pituitary gland. In this case, the symptoms will be supplemented with signs of overproduction of other biologically active substances.
A reduced level of
If the level of TSH (thyrotropin) is lowered, it means that there is hyperthyroidism. That is, the hyperactivity of the secretory function of the thyroid gland, which is accompanied by elevated T3 and T4. If the hormone levels are lowered, the symptoms of hyperthyroidism. This condition is often accompanied by the following symptoms:
- Irritability, anger, nervousness.
- Depressive disorders.
- The sleep disturbance.
- Infringement of concentration of attention.
- Strengthening the appetite.
- Acceleration of metabolic processes leads to the loss of body weight.
- Accelerate peristalsis, then, there is a tendency to diarrhoea.
- Excessive sweating.
- Intolerance to high temperature heat.
- The increase in heart rate, a tendency to develop arrhythmias.
- Violation of potency.
Thyroid-stimulating hormone as a major regulator of thyroid function that responds to any violations of its functions. Despite the fact that the level of T3, T4 can be elevated or lowered, for the first time due to the changes of TSH, the disease remains in a latent stage without clinical manifestations. A blood test to determine the concentration of hormone or antibody to the receptor or the cellular elements of the glands is always necessary to consider, considering how old the man. Because the norm depends on age-related changes.