News tagged with receptors

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

A supplement for myelin regeneration

Multiple sclerosis patients continually lose the insulating myelin sheath that wraps around neurons and increases the speed of impulses in the central nervous system. Whenever neurons are demyelinated, OPCs migrate toward ...

Dec 07, 2015
popularity7 comments 0

Blocking a single molecule defeats chronic fear

As those who suffer from anxiety disorders and post-traumatic stress disorder can attest, recovering from pervasive fear memories can be difficult or impossible to do. Yale researchers, however, have shown how disabling a ...

Dec 01, 2015
popularity165 comments 0

Researchers find sleep gene linked to heart failure

Researchers at the Stanford University School of Medicine have identified a gene that, when working properly, appears to reduce the risk of heart failure and improve treatment outcomes, highlighting a possible target for ...

Nov 30, 2015
popularity223 comments 0

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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