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Discovery of a Potent Highly Biased MOR Partial Agonist among Diastereomeric C9-Hydroxyalkyl-5-phenylmorphans.

All possible diastereomeric C9-hydroxymethyl-, hydroxyethyl-, and hydroxypropyl-substituted 5-phenylmorphans were synthesized to explore the three-dimensional space around the C9 substituent in our search for potent MOR partial agonists. These compounds were […]

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GluCl.CreON enables selective inhibition of molecularly defined pain circuits.

Insight into nociceptive circuits will ultimately build our understanding of pain processing and aid the development of analgesic strategies. Neural circuit analysis has been advanced greatly by the development of […]

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New Insights into the Opioid Analgesic Profile of -(-)–Normetazocine-derived Ligands.

In this work, we report on the in vitro and in vivo pharmacological properties of LP1 analogs to complete the series of structural modifications aimed to generate compounds with improved […]

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Discovery of pyrrolo[2,1-][1,2,4]triazine-based inhibitors of adaptor protein 2-associated kinase 1 for the treatment of pain.

Adaptor protein 2-associated kinase 1 (AAK1) is a member of the Ark1/Prk1 family of serine/threonine kinases and plays a role in modulating receptor endocytosis. AAK1 was identified as a potential […]

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Multiplex epigenome editing of ion channel expression in nociceptive neurons abolished degenerative IVD-conditioned media-induced mechanical sensitivity.

Low back pain is a major contributor to disability worldwide and generates a tremendous socioeconomic impact. The degenerative intervertebral disc (IVD) has been hypothesized to contribute to discogenic pain by […]

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Nav1.7 is essential for nociceptor action potentials in the mouse in a manner independent of endogenous opioids.

Loss-of-function mutations in Nav1.7, a voltage-gated sodium channel, cause congenital insensitivity to pain (CIP) in humans, demonstrating that Nav1.7 is essential for the perception of pain. However, the mechanism by […]

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Engineering a multicompartment in vitro model for dorsal root ganglia phenotypic assessment.

Despite the significant global prevalence of chronic pain, current methods to identify pain therapeutics often fail translation to the clinic. Phenotypic screening platforms rely on modeling and assessing key pathologies […]

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Design, synthesis, and analgesia evaluation of novel Transient Receptor Potential Vanilloid 1 (TRPV1) agonists modified from Cannabidiol (CBD).

Pain-relief is a long-term research hotspot with huge demand in clinical treatment. The analgesics currently used have several side effects, such as being addictive and causing gastrointestinal bleeding. Therefore, new […]

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Understanding the effects of mesenchymal stromal cell therapy for treating osteoarthritis using an in vitro co-culture model.

Osteoarthritis (OA) is a leading cause of chronic pain and disability, for which there is no cure. Mesenchymal stromal cells (MSCs) have been used in clinical trials for treating OA […]

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lncRNA OIP5-AS1 attenuates the osteoarthritis progression in IL-1β-stimulated chondrocytes.

In view of the association between long noncoding RNA OIP5-AS1 and osteoarthritis (OA) pathology, the corresponding potential mechanism is worthy of exploration. Primary chondrocytes were identified by morphological observation and […]

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