What is histamine and heparin production?

Histamine is a biogenic amine produced primarily by mast cells and basophils in response to immune reactions, playing a crucial role in inflammatory responses and regulating physiological functions like gastric acid secretion. Heparin, on the other hand, is an anticoagulant glycosaminoglycan produced by mast cells and other connective tissue cells, which helps prevent blood clotting by inhibiting thrombin and other factors in the coagulation cascade. Both substances are involved in the immune response and play significant roles in maintaining homeostasis in the body.