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.
The next time the person eats that particular food, its allergen hones in on the specific IgE antibody on the surface of the mast cells and prompts the cells to release chemicals such as histamine. Depending upon the tissue in which they are released, these chemicals cause the various symptoms of food allergy.