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Condition: Back Pain

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Total 191 results found since Jan 2013.

Inhibition of TREM1 reduces inflammation and oxidative stress after spinal cord injury (SCI) associated with HO-1 expressions
Publication date: January 2019Source: Biomedicine & Pharmacotherapy, Volume 109Author(s): Zhenhuan Li, Furong Wu, Dafeng Xu, Zhongzheng Zhi, Guanghui XuAbstractSpinal cord injury (SCI) is a devastating event, leading to the progression of chronic neuropathic pain syndrome. Triggering receptor expressed on myeloid cells 1 (TREM1) is an innate immune receptor expressed on neutrophils and monocytes/macrophages. TREM1 enhances inflammatory response in various models of diseases, but its significance in SCI remains unclear. In the present study, we attempted to explore the effects of TREM1 on the regulation of SCI. Spinal cord ...
Source: Biomedicine and Pharmacotherapy - November 27, 2018 Category: Drugs & Pharmacology Source Type: research

Efficiency of dual siRNA-mediated gene therapy for intervertebral disc degeneration (IVDD)
One of the common causes of low back pain is intervertebral disc degeneration. The pathophysiology of disc degeneration involves apoptosis of nucleus pulposes cells and degradation of extra cellular matrix (ECM). Caspase 3 plays a central role in apoptosis and the ADAMTS5 (A Disintegrin and Metalloproteinase with Thrombospondin motifs 5) gene plays a critical role in ECM degradation. Hence, we hypothesized that if one can silence these two genes, both apoptosis and ECM degradation can be prevented, thereby preventing the progression and even reverse disc degeneration.
Source: The Spine Journal - November 12, 2018 Category: Orthopaedics Authors: Rajkiran Reddy Banala, Satish Kumar Vemuri, Ghulam Hassan Dar, Vijayanand Palanisamy, Murahari P, Surekha MV, Gurava Reddy AV, Madhusudhana Rao Nalam, Subbaiah GPV Tags: Basic Science Source Type: research

Lentiviral ‑mediated inducible silencing of TLR4 attenuates neuropathic pain in a rat model of chronic constriction injury.
In conclusion, TLR4 may serve a significant role in neuropathy and the results of the present study provide an inducible lentivirus‑mediated siRNA against TLR4 that may serve as a potential novel strategy to be applied in gene therapy for NP in the future. PMID: 30365084 [PubMed - as supplied by publisher]
Source: Molecular Medicine Reports - October 27, 2018 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

Translocation Associated Membrane Protein 1 Contributes to Chronic Constriction Injury-Induced Neuropathic Pain in the Dorsal Root Ganglion and Spinal Cord in Rats
AbstractNeuropathic pain is a severe debilitating state caused by injury or dysfunction of somatosensory nervous system, and the clinical treatment is still challenging. Translocation associated membrane protein 1 (TRAM1), an adapter protein, participates in a variety of transduction pathways and mediates the biological functions such as cell proliferation, activation, and differentiation. However, whether TRAM1 is involved in the pathogenesis of neuropathic pain is still unclear. In our study, we reported the role of TRAM1 in the maintenance of neuropathic pain induced by chronic constriction injury (CCI) on rats. By west...
Source: Journal of Molecular Neuroscience - October 18, 2018 Category: Neuroscience Source Type: research

ORL 1 Activation Mediates a Novel ORL 1 Receptor Agonist SCH221510 Analgesia in Neuropathic Pain in Rats
AbstractOpioid receptor like 1 (ORL1) receptor activation displayed an anti-nociceptive effect at spinal level for acute and neuropathic pain. SCH221510, an orally active non-peptide ORL1 agonist, was reported to be effective in treating neuropathic pain. The present study used ORL1 antagonist and siRNA to investigate that ORL1 activation mediates intrathecal SCH221510 analgesia in neuropathic pain induced by chronic constrictive injury (CCI) to rat sciatic nerve. Paw withdrawal latency and 50% mechanical threshold were measured for thermal and mechanical hypersensitivity in rats. CCI significantly decreased paw withdrawal...
Source: Journal of Molecular Neuroscience - August 3, 2018 Category: Neuroscience Source Type: research

Spinal SHP2 Contributes to Exaggerated Incisional Pain in Adult Rats Subjected to Neonatal and Adult Incisions via PI3K
Publication date: 10 August 2018Source: Neuroscience, Volume 385Author(s): Xu Ding, Wei Yang, Xiao-Dan Liu, Xi Yang, Huan-Min Wang, Jun TaiAbstractNeonatal injury-induced exaggeration of pain hypersensitivity after adult trauma is a significant clinical challenge. However, the underlying mechanisms remain poorly understood. Growing evidence shows that spinal Src homology-2 domain-containing protein tyrosine phosphatase-2 (SHP2) contributes to chronic pain in adult rodents. Here we demonstrated that the phosphorylation and expression of SHP2 in synaptosomal fraction of the spinal dorsal horn are elevated in adult rats subje...
Source: Neuroscience - July 10, 2018 Category: Neuroscience Source Type: research

Activity-dependent synaptic recruitment of neuroligin 1 in spinal dorsal horn contributed to inflammatory pain
In this study, we found an activity-dependent regulation of NLGN1 synaptic expression in pain-related spinal cord dorsal horns of mice. The enhancement of neuronal activity by pharmacological activation of NMDA receptor (NMDAR) or removal of GABAergic inhibition in intact mice significantly increased NLGN1 concentration at synaptosomal membrane fraction. Intraplantar injection of complete Freund's adjuvant (CFA) also increased the NLGN1 expression at synapses. NMDAR might act through Ca2+/calmodulin-dependent protein kinase II (CaMKII) and Src-family protein tyrosine kinase member Fyn to induce the synaptic redistribution ...
Source: Neuroscience - July 10, 2018 Category: Neuroscience Source Type: research

Spinal SHP2 Contributes to Exaggerated Incisional Pain in Adult Rats Subjected to Neonatal and Adult Incisions via PI3K
Publication date: 10 August 2018Source: Neuroscience, Volume 385Author(s): Xu Ding, Wei Yang, Xiao-Dan Liu, Xi Yang, Huan-Min Wang, Jun TaiAbstractNeonatal injury-induced exaggeration of pain hypersensitivity after adult trauma is a significant clinical challenge. However, the underlying mechanisms remain poorly understood. Growing evidence shows that spinal Src homology-2 domain-containing protein tyrosine phosphatase-2 (SHP2) contributes to chronic pain in adult rodents. Here we demonstrated that the phosphorylation and expression of SHP2 in synaptosomal fraction of the spinal dorsal horn are elevated in adult rats subje...
Source: Neuroscience - July 5, 2018 Category: Neuroscience Source Type: research

Suppression of Pax2 Attenuates Allodynia and Hyperalgesia through ET-1 –ETAR–NFAT5 Signaling in a Rat Model of Neuropathic Pain
Publication date: 1 August 2018 Source:Neuroscience, Volume 384 Author(s): Lydia Wai Tai, Zhiqiang Pan, Liting Sun, Haobo Li, Pan Gu, Stanley Sau Ching Wong, Sookja K. Chung, Chi Wai Cheung Endothelin-1 (ET-1) and its receptors (ETAR/ETBR) emerge to be a key signaling axis in neuropathic pain processing and are recognized as new therapeutic targets. Yet, little is known on the functional regulation of ET-1 axis during neuropathic pain. Bioinformatics analysis indicated that paired box gene 2 (Pax2) or nuclear factor of activated T-cells 5 (NFAT5), two transcription factors involved in the modulation of neurotransmission, ...
Source: Neuroscience - June 8, 2018 Category: Neuroscience Source Type: research

Duhuo Jisheng Decoction inhibits SDF-1-induced inflammation and matrix degradation in human degenerative nucleus pulposus cells in vitro through the CXCR4/NF- κB pathway.
Duhuo Jisheng Decoction inhibits SDF-1-induced inflammation and matrix degradation in human degenerative nucleus pulposus cells in vitro through the CXCR4/NF-κB pathway. Acta Pharmacol Sin. 2018 May 24;: Authors: Liu ZC, Wang ZL, Huang CY, Fu ZJ, Liu Y, Wei ZC, Liu SG, Ma C, Shen JL, Duan DD Abstract Lower back pain (LBP) is the most common disease in orthopedic clinics world-wide. A classic fangji of traditional Chinese medicine, duhuo jisheng decoction (DHJSD), has been proven clinically effective for LBP but its therapeutic mechanisms remain unclear. We hypothesized that DHJSD might relieve LBP th...
Source: Acta Pharmacologica Sinica - May 24, 2018 Category: Drugs & Pharmacology Authors: Liu ZC, Wang ZL, Huang CY, Fu ZJ, Liu Y, Wei ZC, Liu SG, Ma C, Shen JL, Duan DD Tags: Acta Pharmacol Sin Source Type: research

Increased Neuroligin 2 Levels in the Postsynaptic Membrane in Spinal Dorsal Horn may Contribute to Postoperative Pain
Publication date: 1 July 2018 Source:Neuroscience, Volume 382 Author(s): Ruijuan Guo, Huili Li, Xueyang Li, Yuqing Sun, Huihui Miao, Danxu Ma, Fangxiao Hong, Ye Zhang, Yun Guan, Junfa Li, Ming Tian, Yun Wang Neuroligin 2 is a synaptic cell adhesion molecule that is mainly located in inhibitory synapses and is crucial in the regulation of synapse function through protein–protein interactions. However, researchers have not clearly determined whether neuroligin 2 is involved in the development of postoperative pain. In the current study, Western blot, immunofluorescence staining and co-immunoprecipitation were used to exam...
Source: Neuroscience - May 7, 2018 Category: Neuroscience Source Type: research

MicroRNA-146a-5p attenuates visceral hypersensitivity through targeting chemokine CCL8 in the spinal cord in a mouse model of colitis.
In this study, we aimed to explore the potential role of miR-146a-5p (the mature form of miR-146a) in a mouse model of colitis induced by intracolonic injection of trinitrobenzene sulfonic acid (TNBS). We found that induction of colitis resulted in visceral hyperalgesia manifested by a decreased pain threshold to colorectal distension and upregulation of miR-146a-5p expression in the lumbosacral spinal cord. In situ hybridization and immunohistochemistry results showed that miR-146a-5p was colocalized with neuronal marker NeuN, but not with astrocytic marker GFAP or microglial marker IBA-1. Dual-luciferase reporter assay s...
Source: Brain Research Bulletin - March 14, 2018 Category: Neurology Authors: Lu Y, Cao DL, Zhao LX, Han Y, Zhang YL Tags: Brain Res Bull Source Type: research

Inhibition of protein tyrosine phosphatase 1B in spinal cord dorsal horn of rats attenuated diabetic neuropathic pain.
Abstract Protein tyrosine phosphatase 1B (PTP1B) has been shown to dephosphorylate and inactivate insulin receptors, which contributes to the pathogenesis of diabetes. Neuropathic pain is one of the severe complications that results from diabetic neuropathy. However, whether PTP1B was involved in the development of diabetic neuropathic pain is largely unknown. The current study illustrated that PTP1B was located in spinal cord dorsal horn neurons of Sprague-Dawley rats. Western blot analysis demonstrated that the diabetic neuropathic pain induced by intraperitoneal injection of streptozotocin was associated with a...
Source: European Journal of Pharmacology - March 8, 2018 Category: Drugs & Pharmacology Authors: Zhao JY, Yang L, Bai HH, Liu JP, Suo ZW, Yang X, Hu XD Tags: Eur J Pharmacol Source Type: research