μ-opioid receptor system mediates reward processing in humans

L Nummenmaa, T Saanijoki, L Tuominen… - Nature …, 2018 - nature.com
… The endogenous opioid system is intimately involved in both … showing that opioid antagonists
prevent food-seeking and … to anticipatory food cues, which can consequently inhibit urges …

[HTML][HTML] Opioid receptor-mediated regulation of neurotransmission in the brain

KC Reeves, N Shah, B Muñoz… - Frontiers in Molecular …, 2022 - frontiersin.org
… ) and inhibitory (often GABAergic) transmission and postsynaptic … , while KORs inhibit both
GABA and glutamate transmission, … that prevents the strong feedforward inhibition of CA3-CA2 …

An endogenous opioid circuit determines state-dependent reward consumption

DC Castro, CS Oswell, ET Zhang, CE Pedersen… - Nature, 2021 - nature.com
… , we observed a sustained inhibition of GCaMP activity (lasting … be activated via retrograde
transmission. To determine whether … The cut-off was set to 10 s after immersion to prevent

Deletion of mu opioid receptors reduces palatable solution intake in a mouse model of binge eating

G Awad, LA Roeckel, D Massotte… - Behavioural …, 2020 - journals.lww.com
… Binge eating in humans is driven by hedonic properties of food, … group with restricted access
to both commodities (4SUC/4F). … food intake or seeking responses when access to palatable …

Feeding-modulatory effects of mu-opioids in the medial prefrontal cortex: a review of recent findings and comparison to opioid actions in the nucleus accumbens

RA Selleck, BA Baldo - Psychopharmacology, 2017 - Springer
… systemic opioid antagonist administration was found to prevent the … well as disrupting inhibitory
control over food-seeking. The … Hence, a gradient of μ-opioid sensitivity is apparent in the …

Mu-opioids suppress GABAergic synaptic transmission onto orbitofrontal cortex pyramidal neurons with subregional selectivity

BK Lau, BP Ambrose, CS Thomas, M Qiao… - Journal of …, 2020 - Soc Neuroscience
opioids to the OFC can alter the hedonic reaction to food … that mu-opioids affect inhibitory
synaptic transmission within the … that enhancing endogenous opioid levels by preventing their …

[HTML][HTML] The opioid system and food intake: use of opiate antagonists in treatment of binge eating disorder and abnormal eating behavior

LP Valbrun, V Zvonarev - Journal of clinical medicine research, 2020 - ncbi.nlm.nih.gov
… appetite, as they send a stop-food signal to the brain secreting … Both medications were able
to inhibit food intake, and some … novel µ opioid receptor antagonist, on food seeking behavior …

Prefrontal cortical opioids and dysregulated motivation: a network hypothesis

BA Baldo - Trends in neurosciences, 2016 - cell.com
… contribute to inhibitory control deficits will be discussed. Evidence has accrued to suggest that
excessive intra-PFC μ-opioid receptor (μ… prevents both food seeking and binge-like eating. …

Cellular and behavioral basis of cannabinioid and opioid interactions: implications for opioid dependence and withdrawal

A Mohammadkhani, SL Borgland - Journal of Neuroscience …, 2022 - Wiley Online Library
… CB1 or μ opioid receptors inhibit adenylate cyclase (AC) … Both effects were dependent upon
dopamine transmission in the mPFC as systemic blockade of dopamine receptors prevented

Loss of μ opioid receptor signaling in nociceptors, but not microglia, abrogates morphine tolerance without disrupting analgesia

G Corder, VL Tawfik, D Wang, EI Sypek, SA Low… - Nature medicine, 2017 - nature.com
… , which has prevented the development of therapies to maximize and sustain opioid analgesic
… Notably, we found that both DAMGO-induced inhibition and LTP were completely lost in …