Current research has shown that the administration of opioids results ... and function. The endogenous ligands were found in the mid-1970s and were shown to be peptides (Bradbury et al.

The effect of endogenous opioid peptide (EOP) blockade with Nal on the plasma CA response to asphyxia (hypoxemia+acidemia) was investigated in 6 chronically catheterized late gestation (>120 days ...

The endogenous opioid system, which includes receptors that naturally occurring peptides like endorphins activate, plays a pivotal role in managing pain, reward, and stress responses. This system ...