News tagged with receptors

Related topics: cells · protein · brain · molecules · nerve cells

Fighting addiction through the gut-brain axis

"We are what we eat." This piece of folk knowledge is true in more ways than one. In fact, it is well known that food, through action on the enteric system, has direct effects on the brain. The mechanisms underlying this ...

4 hours ago
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Receptor (biochemistry)

In biochemistry, a receptor is a protein molecule, embedded in either the plasma membrane or cytoplasm of a cell, to which a mobile signaling (or "signal") molecule may attach. A molecule which binds to a receptor is called a "ligand," and may be a peptide (such as a neurotransmitter), a hormone, a pharmaceutical drug, or a toxin, and when such binding occurs, the receptor undergoes a conformational change which ordinarily initiates a cellular response. However, some ligands merely block receptors without inducing any response (e.g. antagonists). Ligand-induced changes in receptors result in physiological changes which constitute the biological activity of the ligands.

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