Which of the following is associated with a decrease in pain?

Question

Quizplus · Accepted Answer

Endorphins are naturally occurring neurochemicals that act as painkillers by binding to opioid receptors in the brain and spinal cord. This binding reduces the transmission of pain signals, leading to a decrease in pain perception. Therefore, the release of endorphins is associated with a decrease in pain. Options A and B are associated with an increase in pain as substance P is a neuropeptide that transmits pain signals, while capsaicin increases the release of substance P. Option D, naloxone, is an opioid receptor antagonist and thus inhibits the action of endogenous opioids like endorphins, leading to an increase in pain perception.

Which of the Following Is Associated with a Decrease in Pain