Opioids slot into opioid receptors and activate them. This sends signals to your brain to relieve pain and promote pleasure. Both endogenous opioids, which your body naturally produces, and exogenous ...

Drugs that target opioid receptors sometimes have severe side effects. Thousands of people around the world die every day from overdoses involving opioids such as fentanyl. Researchers have taken a ...

New research suggests that δ-receptor agonists regulate intestinal motility and relieve abdominal pain in a mouse model of ...

Researchers at Rice University have revealed a previously unknown function of opioid receptors in the development of the enteric nervous system (ENS), often referred to as the "brain in the gut." This ...

Researchers at Rice University have revealed a previously unknown function of opioid receptors in the development of the enteric nervous system (ENS), often referred to as the “brain in the gut.” This ...

Brain volume and function are altered in individuals with opioid use disorder, a new Yale study finds. Using magnetic resonance imaging (MRI) and functional MRI (fMRI), researchers observed the ...

Irritable bowel syndrome (IBS) is a common digestive disorder that affects the intestine, causing symptoms such as abdominal ...