Results 51 to 60 of about 87,734 (315)

Chronic Inflammatory Injury Results in Increased Coupling of Delta Opioid Receptors to Voltage-Gated Ca Channels

Molecular Pain, 2013
Background Opioid receptors regulate a diverse array of physiological functions. Mu opioid receptor agonists are well-known analgesics for treating acute pain.
Amynah Pradhan, Monique Smith, Brenna McGuire, Christopher Evans, Wendy Walwyn   +4 more
doaj   +1 more source

Circular RNA circNrip1 Interacts with SYNCRIP to Promote Neuropathic Pain by Stabilizing Tlr2 mRNA in Primary Sensory Neurons

Advanced Science, EarlyView.
Model of circNrip1 (cNrip1) upregulation driving neuropathic pain mechanisms. After peripheral nerve injury, increased FUS triggers the formation and upregulation of cNrip1 in injured DRG neurons. Upregulated cNrip1 recruits SYNCRIP to the 3′‐UTR of Tlr2 mRNA by binding to both, thereby promoting SYNCRIP‐triggered Tlr2 mRNA stability and increasing ...
Xiaozhou Feng, Jifang Xiao, Congcong Huang, Bao‐Chun Jiang, Bing Wang, Xu Li, Shibin Du, Tolga Berkman, Chun‐Hsien Wen, Weihua Cai, Dilip Sharma, Kun Wang, Longfei Ma, Huijuan Hu, Yuan‐Xiang Tao   +14 more
wiley   +1 more source

Cellular Tolerance Induced by Chronic Opioids in the Central Nervous System

Frontiers in Systems Neuroscience, 2022
Opioids are powerful analgesics that elicit acute antinociceptive effects through their action the mu opioid receptor (MOR). However opioids are ineffective for chronic pain management, in part because continuous activation of MORs induces adaptive ...
Sweta Adhikary, John T. Williams
doaj   +1 more source

Astrocytic Phenotypic Switching in Posterior Piriform Cortex Orchestrates Bone Cancer Pain–Depression Comorbidity via Purinergic–Noradrenergic Signaling

Advanced Science, EarlyView.
Bone cancer pain and depression share a common origin: astrocytic A2‐to‐A1 transition in the posterior piriform cortex. This phenotypic shift disrupts the ATP–adenosine–A2AR–norepinephrine axis, simultaneously driving nociceptive and affective dysfunction.
Jiang‐Ping Liu, Jun‐Han Zhang, Zhi‐Xuan Tan, Wei‐Bing Yan, Ya‐Ru Yuan, Yao Liu, Bing‐Di Wei, Meng‐Qi Ding, Zhuo‐Min Fu, Ying Liu, An‐Qi Wang, Lin Ma, Yong‐Hong Li, Er‐Qing Chai, Chao‐Jun Wei   +14 more
wiley   +1 more source

Glycine Transporter 1 Inhibitors: Predictions on Their Possible Mechanisms in the Development of Opioid Analgesic Tolerance

Biomedicines
The development of opioid tolerance in patients on long-term opioid analgesic treatment is an unsolved matter in clinical practice thus far. Dose escalation is required to restore analgesic efficacy, but at the price of side effects.
Anna Rita Galambos, Zsolt Tamás Papp, Imre Boldizsár, Ferenc Zádor, László Köles, Laszlo G. Harsing, Mahmoud Al-Khrasani   +6 more
doaj   +1 more source

GTPγS-Autoradiography for Studies of Opioid Receptor Functionality

, 2020
The opioid receptors have been an interesting target for the drug industry for decades. These receptors were pharmacologically characterized in the 1970s and several drugs and peptides have emerged over the years.
Alfhild Grönbladh, Grönbladh, Alfhild,, Hallberg, Mathias,, Mathias Hallberg   +3 more
core   +1 more source

Divergent Roles of mGlu2 and mGlu3 Receptors in Amyloid‐β Production and Cognitive Dysfunctions in Alzheimer's Disease

Advanced Science, EarlyView.
This study explores the opposing effects of the mGluR2 and mGluR3 receptors on amyloid precursor protein processing. mGluR2 promotes amyloidogenic cleavage, while mGluR3 favors non‐amyloidogenic pathways. Using a brain‐penetrant nanobody as a mGluR2 positive allosteric modulator, the study uncovers how its chronic activation aggravates amyloid‐β burden
Pierre‐André Lafon, Mireille Elodie Tsitokana, Ugo Guy Alenda, Yen‐Ling Lian, Clémentine Eva Philibert, Mathieu Oosterlaken, Marta Cimadevila, Gaëlle Dudon, Jessica Monnic, Salomé Roux, Julie Bessié, Séverine Diem, Franck Vandermoere, Laurent Prézeau, Patrick Chames, Julie Kniazeff, Sylvie Claeysen, Anaïs Menny, Jean‐Philippe Pin, Véronique Perrier, Jianfeng Liu, Philippe Rondard   +21 more
wiley   +1 more source

Heteromerization of μ-opioid receptor and cholecystokinin B receptor through the third transmembrane domain of the μ-opioid receptor contributes to the anti-opioid effects of cholecystokinin octapeptide

Experimental and Molecular Medicine, 2018
Pain medicine: Boosting the potency of opioid analgesics A hormone known to weaken the pain-relieving effects of opioid drugs does so because of interaction between the hormone receptor and the opioid receptor.
Yin Yang, Qian Li, Qi-Hua He, Ji-Sheng Han, Li Su, You Wan   +5 more
doaj   +1 more source

Bidirectional Regulation of Opioid and Chemokine Function

Frontiers in Immunology, 2020
The opioid family of GPCRs consists of the classical opioid receptors, designated μ-, κ-, and δ-opioid receptors, and the orphanin-FQ receptor, and these proteins are expressed on both neuronal and hematopoietic cells.
Thomas J. Rogers
doaj   +1 more source

Mu-opioid receptor knockout mice show diminished food-anticipatory activity

, 2004
We have previously suggested that during or prior to activation of anticipatory behaviour to a coming reward, mu-opioid receptors are activated. To test this hypothesis schedule induced food-anticipatory activity in mu-opioid receptor knockout mice was ...
van den Bos, Ruud, Schuller, Alwin G, Sub Neurobiologie van gedrag, Kas, Martien J H, Spruijt, Berry M, Sub Animal Ecology, Bedrijfsvoering, Lesscher, Heidi M B, Lubbers, Marianne, Hillebrand, Jacquelien J G, Pintar, John E, Baars, Annemarie M   +11 more
core   +1 more source