Development
5-HT3 receptor antagonists or serotonin antagonists were first introduced in the early 1990s, and they have become the most widely used antiemetic drugs in chemotherapy. They have also been proven safe and effective for treatment of postoperative nausea and vomiting. Serotonin (5-HT) is found widely distributed throughout the gut and the central nervous system. In the gut, 5-HT is found mostly in mucosal enterochromaffin cells. Enterochromaffin cells are sensory transducers that release 5-HT to activate intrinsic (via 5-HT1P and 5-HT4 receptors) and extrinsic (via 5-HT3 receptors) primary afferent nerves. Chemotherapeutic drugs for malignant disorders that cause vomiting have been found to cause release of large amounts of serotonin from enterochromaffin cells in the gut, serotonin acts on 5-HT3 receptors in the gut and brain stem.
Read more about this topic: 5-HT3 Antagonist
Famous quotes containing the word development:
“If you complain of people being shot down in the streets, of the absence of communication or social responsibility, of the rise of everyday violence which people have become accustomed to, and the dehumanization of feelings, then the ultimate development on an organized social level is the concentration camp.... The concentration camp is the final expression of human separateness and its ultimate consequence. It is organized abandonment.”
—Arthur Miller (b. 1915)
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“Understanding child development takes the emphasis away from the child’s character—looking at the child as good or bad. The emphasis is put on behavior as communication. Discipline is thus seen as problem-solving. The child is helped to learn a more acceptable manner of communication.”
—Ellen Galinsky (20th century)