This could explain how in the presence of Leu-Enk ... analogs of opioids had greatly increased affinities for the opioid receptors. Dimeric analogs of morphine and enkephalin exhibit higher ...

Elevated opioid neurotransmission in the brain may underlie appetite loss and emotional symptoms in anorexia nervosa.

New research found that individuals with anorexia nervosa have elevated opioid neurotransmitter activity, which may contribute to appetite loss and emotional symptoms. A study from the Turku PET Centr ...

Reversing opioid overdoses in rats using a drug that does not enter the brain prevents the sudden and severe withdrawal symptoms associated with therapeutics that target the central nervous system.

A study conducted at Turku PET Center in Finland showed that changes in the functioning of opioid neurotransmitters in the ...

The scans showed changes in brain regions that contain large amounts of opioid receptors ... many of which included no women," Mehta explained in a journal news release. "Ours is a moderate ...

The Food and Drug Administration (FDA) announced on Tuesday (February 6) that kratom, a popular herbal supplement, is a dangerous drug with “opioid properties.” The announcement came after the FDA ...