News tagged with receptors

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

Team discovers potential new way to treat anxiety

Chemically modified inhibitors of the COX-2 enzyme relieve anxiety behaviors in mice by activating natural "endocannabinoids" without gastrointestinal side effects, Vanderbilt University scientists will report ...

Aug 04, 2013
popularity 5 / 5 (11) | comments 1 | with audio podcast

Long-term memory in the cortex

(Medical Xpress)—'Where' and 'how' memories are encoded in a nervous system is one of the most challenging questions in biological research. The formation and recall of associative memories is essential ...

Aug 27, 2013
popularity 4.9 / 5 (8) | comments 0 | with audio podcast

A new role for sodium in the brain

Researchers at McGill University have found that sodium – the main chemical component in table salt – is a unique "on/off" switch for a major neurotransmitter receptor in the brain. This receptor, known ...

Aug 20, 2013
popularity 4.2 / 5 (9) | comments 0 | with audio podcast

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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