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

Pain relief without side effects and addiction

New substances that activate adrenalin receptors instead of opioid receptors have a similar pain relieving effect to opiates, but without the negative aspects such as respiratory depression and addiction.

'Love hormone' is revealed to have heart healing properties

The neurohormone oxytocin is well-known for promoting social bonds and generating pleasurable feelings, for example from art, exercise, or sex. But the hormone has many other functions, such as the regulation of lactation ...

Unlocking the doors to effective COVID-19 treatments

A team of interdisciplinary researchers from the Institut National de la Recherche Scientifique (INRS) is hoping to identify effective COVID-19 therapeutics. With help from the Canadian Light Source (CLS) at the University ...

Fish can help in the search for multiple sclerosis drugs

The zebrafish should be known to many aquarium enthusiasts, mainly because of its striking pigmentation. However, the characteristic black-blue stripes, to which the animal owes its name, only form over time. Its eyelash-sized ...

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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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