Vasopressin

Vasopressin is a hormone produced in the hypothalamus of the brain and released into the posterior lobe of the pituitary gland. It plays an important role in regulating blood pressure, blood volume and sodium levels in the body.

Vasopressin is one of two hormones called antidiuretic hormones. It works by binding to V1 receptors in the kidneys, resulting in decreased urine production and increased sodium concentrations in the blood. This helps retain water in the body and control blood pressure.

In addition, vasopressin also affects blood volume and sodium levels in the body, which may be useful in treating certain diseases such as diabetes insipidus and hypertension.

However, too much vasopressin in the blood can lead to low blood pressure and poor circulation. Therefore, monitoring vasopressin levels is important for maintaining health and preventing various diseases.

In general, vasopressin plays a key role in maintaining body homeostasis and regulating many physiological processes. Understanding and controlling it can help treat various diseases and maintain health.

"Vasopressin peptide"

---

| Definition of the term “Vasopressin”.

The word "vasopressin" means a synthetic protein compound with a peptide structure. This substance is produced by the hypothalamus of the brain and acts on organ receptors - targets in tissues located in many organs.

The vasopressive effect of the compound is the ability to enhance vascular tone. The selective activity of the mechanism of action of the compound is associated with the function of the preoptic region of the hypothalamus: being in the body corresponds to its needs.

By binding to a specific receptor in a specific organ, the agent causes constriction of capillaries throughout the body. The action of the substance ensures an increased flow of fluid along with metabolic products from the body's cells into the vessels. Therefore, with artificial dilatation of the veins, the composition of the blood does not change much. These properties characterize the mechanism of the vasopressor action of the agent. The administration of the drug is accompanied by a decrease in circulating blood volume, and an increase in arterial pulse is possible. The substance can increase blood pressure.

The very fact of a decrease in intravascular volume increases the blood volume in the main channel and leads to a compensatory increase in venous vascular volume, that is, to an acceleration of blood flow. When cardiac output falls, the pulse decreases as the contractility of the heart muscle decreases. The tissue arteriolar reaction persists, which contributes to an increase in blood pressure due to an increase in peripheral vascular resistance. Only with significant suppression of the sympathetic nervous system associated with the heart does its strength increase. The pressure in the coronary bloodstreams increases due to an increase in the volumetric velocity of entry into the heart. Fixed in brain vessels