Biography. After five gold medals at the 1967 Pan American Games, great things were expected of Mark Spitz at the 1968 Olympics, but he surprisingly failed to win an individual event. Before the 1972 Olympics, however, Spitz became undoubtedly the world's greatest swimmer, and considered by many the greatest ever.iography. After five gold medals at the 1967 Pan American Games, great things were expected of Mark Spitz at the 1968 Olympics, but he surprisingly failed to win an individual event. Before the 1972 Olympics, however, Spitz became undoubtedly the world's greatest swimmer, and considered by many the greatest ever.
What substance is release by the mast cells in response to allergic reaction? Histamine is the primary effector substance released by the mast cell in response to an allergy. When you have an allergy to something, you exhibit certain common symptoms. Retired college science professor. Member of Beta Beta Beta Biological Honor Society, ACS & AAAS.
Histamine is a substance present in cells of the immune system. It is released when tissue is damaged and during an allergic reaction.Anaphylaxis, hay fever and hives are common reactions involving histamine.istamine is a product of the amino acid histidine. Two kinds of immune cells release histamine: mast cells in the tissue, and basophils in the blood.