1 Other symptoms may accompany the rash, such as joint pain, fever, chills, or fatigue. 2  If Lyme disease is not treated, more severe symptoms and complications can occur. 3  These include arthritis, neurologic symptoms, or heart problems.ymptoms. 1  A bull's-eye rash (erythema migrans) is the most definitive sign of Lyme disease infection. 2  Other symptoms may accompany the rash, such as joint pain, fever, chills, or fatigue. 3  If Lyme disease is not treated, more severe symptoms and complications can occur.
Dopamine production. Dopamine is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area. It is a neurohormone that is released by the hypothalamus.
Dopamine Agonists. Dopamine. Dopamine is a chemical messenger which is produced in several areas of the human brain. The five known types of dopamine receptors in humans are D1 through to D5. These receptors are located in the brain, the central nervous system, the blood vessels, and the kidneys. Part of the protein family, dopamine receptors sit on the surface of a cell.