Results 121 to 130 of about 88,456 (270)

M3 muscarinic acetylcholine receptor facilitates the endocytosis of mu opioid receptor mediated by morphine independently of the formation of heteromeric complexes [PDF]

open access: yes, 2017
Morphine inefficiency to induce the internalization of mu opioid (MOP) receptors observed in numerous experimental models constitutes a paradigm of G-protein coupled receptor (GPCR) functional selectivity.
Alvarez-Curto, Elisa   +2 more
core   +1 more source

Sex Differences in Kappa Opioid Receptor Function and Their Potential Impact on Addiction

open access: yesFrontiers in Neuroscience, 2015
Behavioral, biological, and social sequelae that lead to drug addiction differ between men and women. Our efforts to understand addiction on a mechanistic level must include studies in both males and females.
E. Chartoff, M. Mavrikaki
semanticscholar   +1 more source

Effects of Electroacupuncture at ST36 on Visceral Pain and Inflammatory Markers in IBS Rats

open access: yesNeurogastroenterology &Motility, EarlyView.
Electroacupuncture (EA) at ST36 significantly reduced visceral pain and colonic inflammation in IBS model rats. EA increased pain thresholds, lowered AWR scores, and downregulated key inflammatory mediators (IL‐1β, IL‐6, TNF‐α, TRPV1, NF‐κB). These findings highlight ST36‐targeted EA as a promising therapeutic strategy for IBS visceral hypersensitivity
Ya‐bo Hao   +6 more
wiley   +1 more source

A Review of the Therapeutic Potential of Recently Developed G Protein-Biased Kappa Agonists

open access: yesFrontiers in Pharmacology, 2019
Between 2000 and 2005 several studies revealed that morphine is more potent and exhibits fewer side effects in beta-arrestin 2 knockout mice. These findings spurred efforts to develop opioids that signal primarily via G protein activation and do not, or ...
Kendall L. Mores   +6 more
doaj   +1 more source

Effect of intrauterine morphine sulfate exposure on cerebellar histomorphological changes in neonatal mice [PDF]

open access: yes, 2011
Neurotoxic effects of morphine sulfate in adult cerebellar cortex and neonatal cerebral cortex have been studied in animal models. This study was done to determine the neurotoxic effects of prenatal morphine exposure on the histo morphological changes of
Ghafari, S.   +2 more
core  

GABAB receptor‐mediated modulation of sensory neuron excitability: Roles of CaV2.2, G‐protein‐coupled inwardly rectifying potassium (GIRK) channels, and hyperpolarisation‐activated cyclic nucleotide‐gated (HCN) channels in human and mouse nociception

open access: yesExperimental Physiology, EarlyView.
Abstract Chronic visceral pain is a key symptom of irritable bowel syndrome. Modulation of voltage‐gated calcium and potassium channels by G protein‐coupled receptors plays a key role in dampening nociceptive transmission. Both baclofen and the analgesic peptide α‐conotoxin Vc1.1 activate GABAB receptors (GABABR), resulting in inhibition of CaV2.2 and ...
Mariana Brizuela   +4 more
wiley   +1 more source

Local Anesthetics in Cancer: Mechanisms and Translational Perspectives

open access: yesMedComm – Oncology, Volume 5, Issue 1, March 2026.
Local anesthetics demonstrate multifaceted antitumor effects that collectively contribute to cancer suppression. Beyond canonical sodium channel blockade, these agents exert the following pharmacological actions: inhibition of tumor cell proliferation, suppression of migration and invasion, induction of proapoptotic pathways, attenuation of ...
Wan‐li Wang   +4 more
wiley   +1 more source

Structure of the human kappa opioid receptor in complex with JDTic

open access: yesNature, 2012
Opioid receptors mediate the actions of endogenous and exogenous opioids on many physiological processes, including the regulation of pain, respiratory drive, mood, and—in the case of κ-opioid receptor (κ-OR)—dysphoria and psychotomimesis. Here we report
Huixian Wu   +16 more
semanticscholar   +1 more source

Esketamine/Ketamine: Dual‐Action Mechanisms and Clinical Prospects beyond Anesthesia in Psychiatry, Immunology, and Oncology

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
Esketamine and ketamine are widely used for perioperative analgesia and anesthesia. Despite their established roles in analgesia, sedation, and anesthesia, as well as emerging antidepressant, anti‐tumor, and anti‐inflammatory effects, their clinical use is limited due to side effects and addiction potential.
Yinxin Wang   +7 more
wiley   +1 more source

Dose–Response Effects of Transcutaneous Electrical Nerve Stimulation for Chronic Low Back Pain: A Systematic Review and Meta‐Analysis

open access: yesEuropean Journal of Pain, Volume 30, Issue 2, February 2026.
ABSTRACT Background Transcutaneous electrical nerve stimulation (TENS) is a widely used non‐pharmacological method for pain management, though its effectiveness in individuals with chronic low back pain (CLBP) is uncertain. Previous studies and systematic reviews have not systematically analysed the influence of TENS dosing parameters on treatment ...
Juan J. Amer‐Cuenca   +6 more
wiley   +1 more source

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