Katecholamínum

Katecholamínum, also known as catecholamines, are a group of biogenic amines that play a crucial role in the body's response to stress and in the regulation of various physiological processes. They are derived from the amino acid tyrosine and are classified into two main categories: epinephrine (adrenaline) and norepinephrine (noradrenaline), and dopamine. These neurotransmitters are synthesized in the brain and released into the bloodstream by the adrenal medulla in response to stress. They act on specific receptors in target organs, such as the heart, blood vessels, and liver, to produce their effects. Katecholamínum are involved in various physiological functions, including heart rate regulation, blood pressure control, and metabolism. Dysregulation of catecholamine levels has been linked to several medical conditions, such as hypertension, anxiety disorders, and certain types of cancer. The study of catecholamines is an active area of research in the fields of pharmacology, endocrinology, and neuroscience.