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Seasonal variation in the brain μ-opioid receptor availability
<p>Seasonal rhythms influence emotion and sociability. The brain μ-opioid receptor (MOR) system modulates a multitude of seasonally varying socioemotional functions, but its seasonal variation remains elusive with no ...
Interindividual variability and lateralization of mu-opioid receptors in the human brain
Alterations in the brain's mu-opioid receptor (MOR) system have been associated with several neuropsychiatric disorders. Central MOR availability also varies considerably in healthy individuals. Multiple epidemiological ...
μ-opioid receptor availability is associated with sex drive in human males
The endogenous mu-opioid receptor (MOR) system modulates a multitude of social and reward-related functions, and exogenous opiates also influence sex drive in humans and animals. Sex drive shows substantial variation across ...
Secretin activates brown fat and induces satiation
<p>Brown adipose tissue (BAT) thermogenesis is activated by feeding. Recently, we revealed a secretin-mediated gut–BAT–brain axis, which stimulates satiation in mice, but the purpose of meal-induced BAT activation in humans ...
Aerobic Fitness is Associated with Cerebral mu-Opioid Receptor Activation in Healthy Humans
<p><strong>Introduction: </strong>Central μ-opioid receptors (MORs) modulate affective responses to physical exercise. Individuals with higher aerobic fitness report greater exercise-induced mood improvements than those ...
Association of CNR1 gene and cannabinoid 1 receptor protein in the human brain
We aimed to integrate genomic mapping from brain mRNA atlas with the protein expression from positron emission tomography (PET) scans of type 1 cannabinoid (CB1) receptor and to compare the predictive power of CB1 receptor ...
Obesity risk is associated with brain glucose uptake and insulin resistance
<p><strong>Objective: </strong>To investigate whether alterations in brain glucose uptake (BGU), insulin action in the brain-liver axis and whole-body insulin sensitivity occur in young adults in pre-obese state.</p><p>< ...
Atlas of type 2 dopamine receptors in the human brain: Age and sex dependent variability in a large PET cohort
<h3><br></h3><h3>Background</h3><p>The dopamine system contributes to a multitude of functions ranging from reward and motivation to learning and movement control, making it a key component in goal-directed behavior. Altered ...
Mesolimbic opioid-dopamine interaction is disrupted in obesity but recovered by weight loss following bariatric surgery
Obesity is a growing burden to health and the economy worldwide. Obesity is associated with central mu-opioid receptor (MOR) downregulation and disruption of the interaction between MOR and dopamine D-2 receptor (D2R) ...