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1. Glossary

Antagonist

Due to the lock-and-key principle, transmitters (messenger substances) can only bind to specific receptors. An antagonist can be so similar to this transmitter that it can bind to this receptor. It thus prevents the actual transmitter from activating the receptor and becoming effective. There are also antagonists that do not bind directly to the receptor but alter the "lock," i.e., the receptor, so that the key no longer fits.

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Glossary

15.03.2017