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Condition: Back Pain

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Total 191 results found since Jan 2013.

Autophagy activated by tuberin/mTOR/p70S6K suppression is a protective mechanism against local anaesthetics neurotoxicity
Abstract The local anaesthetics (LAs) are widely used for peripheral nerve blocks, epidural anaesthesia, spinal anaesthesia and pain management. However, exposure to LAs for long duration or at high dosage can provoke potential neuronal damages. Autophagy is an intracellular bulk degradation process for proteins and organelles. However, both the effects of LAs on autophagy in neuronal cells and the effects of autophagy on LAs neurotoxicity are not clear. To answer these questions, both lipid LAs (procaine and tetracaine) and amide LAs (bupivacaine, lidocaine and ropivacaine) were administrated to human neuroblastoma SH‐S...
Source: Journal of Cellular and Molecular Medicine - October 31, 2016 Category: Molecular Biology Authors: Jingwei Xiong, Qiuyue Kong, Leyang Dai, He Ma, Xiaofei Cao, Li Liu, Zhengnian Ding Tags: Original Article Source Type: research

Contribution of the Suppressor of Variegation 3-9 Homolog 1 in Dorsal Root Ganglia and Spinal Cord Dorsal Horn to Nerve Injury –induced Nociceptive Hypersensitivity
Conclusions The findings of this study suggest that SUV39H1 contributes to nerve injury –induced allodynia and hyperalgesia through gating MOR expression in the injured DRG. SUV39H1 may be a potential target for the therapeutic treatment of nerve injury–induced nociceptive hypersensitivity.
Source: Anesthesiology - September 20, 2016 Category: Anesthesiology Source Type: research

Delivering miRNA in vivo
More Transfection Success!Great Research Tools!Our i-FectTM  Transfection Kit is used to studyEpigenetics and pain. Here ' s yet another example:M. Leinders, b, N. Üçeyler, R.A. Pritchard, C. Sommer, L.S. Sorkin. Increased miR-132-3p expression is associated with chronic neuropathic pain. Experimental Neurology. Volume 283, Part A, September 2016, Pages 276 –286...The inhibitor and mimetic were administered to awake rats via the it catheters. Prior to injection, active or mismatch inhibitors were mixed with (1:5 w/v) i-Fect™ in vivo transfection reagent(Neuromics, Edina, USA) to final doses of 5, 2 and...
Source: siRNA and DsiRNA Transfection Efficiency - August 19, 2016 Category: Neuroscience Tags: iFect miRNA Delivery Methods Source Type: news

More on Epigenetics and Pain
Great Research Tools!OurMarkers and i-FectTM Transection Kit are used to studyEpigenetics and pain. Here ' s yet another example:M. Leinders, b, N. Üçeyler, R.A. Pritchard, C. Sommer, L.S. Sorkin. Increased miR-132-3p expression is associated with chronic neuropathic pain. Experimental Neurology. Volume 283, Part A, September 2016, Pages 276 –286...The inhibitor and mimetic were administered to awake rats via the it catheters. Prior to injection, active or mismatch inhibitors were mixed with (1:5 w/v) i-Fect™ in vivo transfection reagent(Neuromics, Edina, USA) to final doses of 5, 2 and 1 μg in 10 μl...Fi...
Source: Neuromics - August 19, 2016 Category: Neuroscience Tags: chronic pain iFect miRNA siRNA delivery in-vivo Source Type: news

Epigenetic suppression of potassium ‐chloride co‐transporter 2 expression in inflammatory pain induced by complete Freund's adjuvant (CFA)
ConclusionThese findings suggest that the transcription of spinal KCC2 is regulated by histone acetylation epigenetically following CFA. SignificancePersistent pain suppresses KCC2 expression through HDAC‐mediated histone hypoacetylation and consequently impairs the inhibitory function of inhibitory interneurons. Drugs such as HDAC inhibitors that suppress the influences of persistent pain on the expression of KCC2 may serve as a novel analgesic.
Source: European Journal of Pain - August 10, 2016 Category: Anesthesiology Authors: C. ‐R. Lin, J.‐K. Cheng, C.‐H. Wu, K.‐H. Chen, C.‐K. Liu Tags: Original Article Source Type: research

Annexin A10 is involved in the development and maintenance of neuropathic pain in mice
We examined the gene expressions of the L5 spinal cord after spinal nerve ligation (SNL)-induced neuropathic pain in mice by gene chip. The results showed that Anxa10 mRNA was the most upregulated gene in annexin family with 73.7-fold increase. Although previous studies have reported that several annexins are involved in nociceptive pain, the role of Anxa10 in pain remains undefined. We aimed to evaluate the role of ANXA10 in mediating injury-induced heat hyperalgesia and mechanical allodynia. We found that SNL induced persistent upregulation of Anxa10 mRNA and protein in the spinal cord of mice. Moreover, ANXA10 was coloc...
Source: Neuroscience Letters - August 9, 2016 Category: Neuroscience Source Type: research

Role of Nectin-1/c-Src Signaling in the Analgesic Effect of GDNF on a Rat Model of Chronic Constrictive Injury
In this study, we aimed to examine whether the adhesion protein nectin-1 and its downstream protein c-Src are involved in neuropathic pain. We found that nectin-1 was expressed in the superficial dorsal horn of the spinal cord and that it was increased after chronic constrictive injury (CCI). Intrathecal administration of nectin-1 siRNA attenuated neuropathic pain induced by CCI via interference of the expression of nectin-1. Furthermore, we found that GDNF can downregulate the phosphorylation level of nectin-1-associated c-Src without changing the expression level of nectin-1. In summary, these data suggest that nectin-1 ...
Source: Journal of Molecular Neuroscience - July 8, 2016 Category: Neuroscience Source Type: research

Functional inhibition of chemokine receptor CCR2 by dicer-substrate-siRNA prevents pain development
Conclusion Altogether, these results validate CCR2 as a an appropriate molecular target for pain control and demonstrate that RNAi-based gene therapy represent an highly specific alternative to classical pharmacological approaches to treat central pathologies such as chronic pain.
Source: Molecular Pain - June 14, 2016 Category: Molecular Biology Authors: Begin-Lavallee, V., Midavaine, E., Dansereau, M.-A., Tetreault, P., Longpre, J.-M., Jacobi, A. M., Rose, S. D., Behlke, M. A., Beaudet, N., Sarret, P. Tags: Research Article Source Type: research

Effect of Epac1 on pERK and VEGF Activation in Postoperative Persistent Pain in Rats
This study suggests that activation of the Epac1 signal might induce local postoperative recovery process, which could be an important mechanism by which to control postoperative chronic pain. Our data suggest that therapy targeted at decreasing Epac1 levels provides promise for the prevention and treatment of chronic postoperative pain.
Source: Journal of Molecular Neuroscience - June 9, 2016 Category: Neuroscience Source Type: research

SDF‑1/CXCR4 axis induces apoptosis of human degenerative nucleus pulposus cells via the NF‑κB pathway.
In conclusion, the SDF‑1/CXCR4 axis promoted cell apoptosis in human degenerative NPCs via the NF‑κB pathway, thus suggesting that SDF‑1/CXCR signaling may be a therapeutic target for the treatment of degenerative IVD diseases. PMID: 27220474 [PubMed - as supplied by publisher]
Source: Molecular Medicine Reports - May 27, 2016 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

Opioid Receptor Expression in Neuropathic Pain Neurobiology
In this study, we determined the role of G9a in diminished MOR expression and opioid analgesic effects in animal models of neuropathic pain. We found that nerve injury in rats induced a long-lasting reduction in the expression level of MORs in the DRG but not in the spinal cord. Nerve injury consistently increased the enrichment of the G9a product histone 3 at lysine 9 dimethylation in the promoter of Oprm1 in the DRG. G9a inhibition or siRNA knockdown fully reversed MOR expression in the injured DRG and potentiated the morphine effect on pain hypersensitivity induced by nerve injury. In mice lacking Ehmt2 in DRG neurons, ...
Source: Journal of Biological Chemistry - April 14, 2016 Category: Chemistry Authors: Zhang, Y., Chen, S.-R., Laumet, G., Chen, H., Pan, H.-L. Tags: Molecular Bases of Disease Source Type: research

CREB-regulated transcription coactivator 1 enhances CREB-dependent gene expression in spinal cord to maintain the bone cancer pain in mice
Conclusions Upregulation of CRTC1 enhancing CREB-dependent gene transcription in spinal cord may play an important role in bone cancer pain. Inhibition of spinal CRTC1 expression reduced bone cancer pain. Interruption to the positive feedback circuit between CREB/CRTC1 and its targets may contribute to the analgesic effects. These findings may provide further insight into the mechanisms and treatment of bone cancer pain.
Source: Molecular Pain - April 7, 2016 Category: Molecular Biology Authors: Liang, Y., Liu, Y., Hou, B., Zhang, W., Liu, M., Sun, Y.-E., Ma, Z., Gu, X. Tags: Research Article Source Type: research

Pain: FKBP51 inhibition reduces chronic pain
Nature Reviews Drug Discovery 15, 234 (2016). doi:10.1038/nrd.2016.55 Author: Sarah Crunkhorn Polymorphisms in the gene encoding FK506 binding protein 51 (FKBP51) — a regulator of steroid hormone signalling — influence the severity of musculoskeletal pain symptoms after trauma. Here, using Fkbp51-knockout mice and siRNA-induced silencing of Fkbp51 in the mouse spinal cord, Maiarù et
Source: Nature Reviews Drug Discovery - March 31, 2016 Category: Drugs & Pharmacology Authors: Sarah Crunkhorn Tags: Research Highlight Source Type: research

Positive feedback regulation between microRNA‐132 and CREB in spinal cord contributes to bone cancer pain in mice
ConclusionsThese findings suggest that activation of spinal CREB/CRTC1 signalling may play an important role in bone cancer pain. Interruption to the positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 can effectively relieved the bone cancer‐induced mechanical allodynia and spontaneous pain. What does this study add?The positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 in spinal cord plays an important role in bone cancer pain.
Source: European Journal of Pain - February 26, 2016 Category: Anesthesiology Authors: B. Hou, X. Cui, Y. Liu, W. Zhang, M. Liu, Y.E. Sun, Z. Ma, X. Gu Tags: Original Article Source Type: research

Positive feedback regulation between microRNA ‐132 and CREB in spinal cord contributes to bone cancer pain in mice
ConclusionsThese findings suggest that activation of spinal CREB/CRTC1 signalling may play an important role in bone cancer pain. Interruption to the positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 can effectively relieved the bone cancer‐induced mechanical allodynia and spontaneous pain. What does this study add?The positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 in spinal cord plays an important role in bone cancer pain.
Source: European Journal of Pain - February 25, 2016 Category: Anesthesiology Authors: B. Hou, X. Cui, Y. Liu, W. Zhang, M. Liu, Y.E. Sun, Z. Ma, X. Gu Tags: Original Article Source Type: research