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Condition: Pain
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Total 374 results found since Jan 2013.
Epigenetics and Pain Research
i-Fect Used to Study ImpactsOur i-Fect siRNA, miRNA and shRNA Trasfection Kit was recently used to study the impact of G9a-specific siRNA (AGUAACGGGCAUCAAUGC) on Mu Opioid Receptors: Yuhao Zhang, Shao-Rui Chen, Geoffroy Laumet, Hong Chen and Hui-Lin Pan. Nerve Injury Diminishes Opioid Analgesia through Lysine Methyltransferase-Mediated Transcriptional Repression of µ-Opioid Receptors in Primary Sensory Neurons. First Published on February 25, 2016, doi: 10.1074/jbc.M115.711812... In some SNL rats, G9a-specific siRNA (4 µg) or the negative control siRNA was administered intrathecally. G9a-specific siRNA(AGUAACGGGCAUC...
Source: siRNA and DsiRNA Transfection Efficiency - March 24, 2016 Category: Neuroscience Tags: epigenetics Ga9 Mu Opioid Receptor inhibitor i-Fect iFect intrathecal delivery of siRNA Morphine neuropathic pain Source Type: news
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
Expression of Vesicular Nucleotide Transporter in Rat Odontoblasts.
We examined the expression of VNUT in rat pulp by RT-PCR and immunostaining. ATP release from cultured odontoblast-like cells with heat stimulation was evaluated using ATP luciferase methods. VNUT was expressed in pulp tissue, and the distribution of VNUT-immunopositive vesicles was confirmed in odontoblasts. In odontoblasts, some VNUT-immunopositive vesicles were colocalized with membrane fusion proteins. Additionally P2X3, an ATP receptor, immunopositive axons were distributed between odontoblasts. The ATP release by thermal stimulation from odontoblast-like cells was inhibited by the addition of siRNA for VNUT. These fi...
Source: Acta Histochemica et Cytochemica - February 26, 2016 Category: Biochemistry Authors: Ikeda E, Goto T, Gunjigake K, Kuroishi K, Ueda M, Kataoka S, Toyono T, Nakatomi M, Seta Y, Kitamura C, Nishihara T, Kawamoto T Tags: Acta Histochem Cytochem 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
c-Fos-Regulated Matrix Metalloproteinase-9 Expression is Involved in 17ß-Estradiol-Promoted Invasion of Human Endometrial Stromal Cell.
This study investigates the effect of 17β-estradiol (E2) on human endometrial stromal cell (HESC) invasion and the role of c-fos and matrix metalloproteinase-9 (MMP-9) in mediating the biological function of 17β-E2. It is found that 17β-E2 promotes not only HESC invasion, but also c-fos and MMP-9 expression in HESC. Further experiments demonstrate that the estrogen receptor inhibitor ICI 182780 and siRNA-mediated c-fos or MMP-9 knockdown are able to block the effect of 17β-E2 on HESC invasion. Moreover, siRNA-mediated c-fos knockdown suppresses the effect of 17β-E2 on MMP-9 expression. Our results indicate that 17β-E...
Source: Current Molecular Medicine - February 25, 2016 Category: Molecular Biology Authors: Pan H, Zhang P, Li JR, Wang H, Jin MF, Feng C, Huang HF Tags: Curr Mol Med Source Type: research
cAMP-Response Element-Binding 3-like protein 1 (CREB3L1) is required for decidualization and its expression is decreased in women with endometriosis.
In this study, we validated progesterone (P4) regulation of Creb3l1 in the uteri of wild-type and progesterone receptor knockout (PRKO) mice. Furthermore, we observed that CREB3L1 expression was significantly higher in secretory phase human endometrium compared to proliferative phase and that CREB3L1 expression was significantly decreased in the endometrium of women with endometriosis. Lastly, by transfecting CREB3L1 siRNA into cultured human endometrial stromal cells (hESCs) prior to hormonal induction of in vitro decidualization, we showed that CREB3L1 is required for the decidualization process. Interestingly, phosphory...
Source: Current Molecular Medicine - February 25, 2016 Category: Molecular Biology Authors: Ahn JI, Yoo JY, Kim TH, Kim YI, Ferguson SD, Fazleabas AT, Young SL, Lessey BA, Ahn JY, Lim JM, Jeong JW Tags: Curr Mol Med Source Type: research
siRNA-mediated downregulation of GluN2B in the rostral anterior cingulate cortex attenuates mechanical allodynia and thermal hyperalgesia in a rat model of pain associated with bone cancer.
Authors: Xu Y, Wang G, Zou X, Yang Z, Wang Q, Feng H, Zhang M
Abstract
It has previously been suggested that the upregulation of GluN2B-containing N-methyl D-aspartate receptors (GluN2B) within the rostral anterior cingulate cortex (rACC) may contribute to the development of chronic pain. The present study used a rat model of bone cancer pain in order to investigate whether lentiviral-mediated delivery of small interfering RNAs targeting GluN2B (LV-GluN2B) could attenuate pain associated with bone cancer, by selectively decreasing GluN2B expression within the rACC. Sprague Dawley rats were inoculated with osteosarc...
Source: Experimental and Therapeutic Medicine - February 20, 2016 Category: Journals (General) Tags: Exp Ther Med Source Type: research
Abstract P2-05-26: Focal adhesion kinase is required for efficient tumor-induced osteoclastogenesis via control of macrophage colony stimulating factor expression
Breast cancer most commonly metastasizes to bone where metastases cause the potentiation of the vicious cycle. During this process, breast cancer bone metastases inhibit osteoblasts from forming new bone, while also activating osteoclasts to degrade bone. This in turn causes release of bone-matrix bound growth factors which propagate tumor growth. The overall net bone destruction can lead to significant adverse clinical consequences for patients including fractures or substantial pain. While agents such as bisphosphonates or the monoclonal antibody to RANKL denosumab, both of which inhibit the osteolytic activity of osteoc...
Source: Cancer Research - February 18, 2016 Category: Cancer & Oncology Authors: Landon, K., Howe, G., Zhao, H., Addison, C. Tags: Poster Session Abstracts Source Type: research
Downregulation of the spinal dorsal horn clock gene Per1 expression leads to mechanical hypersensitivity via c-jun N-terminal kinase and CCL2 production in mice
Publication date: Available online 23 January 2016 Source:Molecular and Cellular Neuroscience Author(s): Norimitsu Morioka, Munenori Saeki, Tatsuhiko Sugimoto, Takuya Higuchi, Fang Fang Zhang, Yoki Nakamura, Kazue Hisaoka-Nakashima, Yoshihiro Nakata Disturbances of circadian rhythm and dysregulation of clock gene expression are involved in the induction of various neurological disorder states, including chronic pain. However, the relationship between the CNS circadian-clock gene system and nociception remains poorly defined. Significant circadian oscillations of Period (Per1, Per2), Bmal1 and Cryptochrome 1 (Cry1...
Source: Molecular and Cellular Neuroscience - January 25, 2016 Category: Neuroscience Source Type: research
Delivery of siRNA, miRNA, shRNA and Plasmids Guaranteed
Potent and Frequently Published Transfection Solutions We have proven and frequently published transfection solutions. Powerful punch and versatility are now needed more than ever with the hyper growth in gene manipulation technologies like Sleeping BeautyTM and CRISPR-Cas9.We have published examples of the use of our solutions for delivering siRNA, miRNA, shRNA and plasmids both in vitro and in vivo. Here are some of your options. i-Fect ™ -A novel cationic lipid formulation specifically designed for efficient delivery of 27mer DsiRNAs(dicer substrate small Interfering RNAs)& 21mer siRNAs (small interfering RNA...
Source: siRNA and DsiRNA Transfection Efficiency - January 20, 2016 Category: Neuroscience Tags: DNA transfection i-Fect miRNA Delivery Methods p-fect Plasmid Transfection plasmids pn-Fect shRNA siRNA Source Type: news
Amomum tsao‐ko fruit extract suppresses lipopolysaccharide‐induced inducible nitric oxide synthase by inducing heme oxygenase‐1 in macrophages and in septic mice
This study was designed to assess the anti‐inflammatory effects and the molecular mechanisms of the methanol extract of A. tsao‐ko (AOM) in lipopolysaccharide (LPS)‐induced RAW 264.7 macrophages and in a murine model of sepsis. In LPS‐induced RAW 264.7 macrophages, AOM reduced the production of nitric oxide (NO) by inhibiting inducible nitric oxide synthase (iNOS) expression, and increased heme oxygenase‐1 (HO‐1) expression at the protein and mRNA levels. Pretreatment with SnPP (a selective inhibitor of HO‐1) and silencing HO‐1 using siRNA prevented the AOM‐mediated inhibition of NO production and iNOS e...
Source: International Journal of Experimental Pathology - January 14, 2016 Category: Pathology Authors: Ji‐Sun Shin, Suran Ryu, Dae Sik Jang, Young‐Wuk Cho, Eun Kyung Chung, Kyung‐Tae Lee Tags: Original Article Source Type: research
lncRNA NONRATT021972 siRNA Decreases Diabetic Neuropathic Pain Mediated by the P2X 3 Receptor in Dorsal Root Ganglia
Abstract
Long noncoding RNAs (lncRNAs) participate in physiological and pathophysiological processes. Type 2 diabetes mellitus (T2DM) accounts for more than 90 % of all cases of diabetes mellitus (DM). Diabetic neuropathic pain (DNP) is a common complication of T2DM. The aim of this study was to investigate the effects of lncRNA NONRATT021972 small interference RNA (siRNA) on DNP mediated by the P2X3 receptor in dorsal root ganglia (DRG). These experiments showed that the expression levels of NONRATT021972 in DRG were increased in the T2DM rat model (intraperitoneal injection of STZ with 30 mg/kg). The concentra...
Source: Molecular Neurobiology - January 7, 2016 Category: Neurology Source Type: research
Intrathecal injection of phosphodiesterase 4B-specific siRNA attenuates neuropathic pain in rats with L5 spinal nerve ligation.
Authors: Ji Q, Di Y, He X, Liu Q, Liu J, Li W, Zhang L
Abstract
Phosphodiesterase 4 (PDE4) is an adenosine cyclic 3,5-monophosphate-specific degradative enzyme, which is closely associated with the inflammatory response. Among its four subtypes (A‑D), it remains unclear which one exerts suppressive effects on inflammation and reduces neuropathic pain. The present study aimed to examine the modulation of neuroinflammation by PDE4 subtypes in the spinal cord of a rat model of L5 spinal nerve ligation (SNL)‑induced neuropathic pain. The expression levels of PDE4A‑D were measured in the lumbar spinal cords of na...
Source: Molecular Medicine Reports - December 29, 2015 Category: Molecular Biology Tags: Mol Med Rep Source Type: research
JAB1 is Involved in Neuropathic Pain by Regulating JNK and NF-κB Activation After Chronic Constriction Injury.
This study aimed to investigate the possible involvement of JAB1. Here, employing a neuropathic pain model induced by chronic constriction injury (CCI) on rats, we reported the role of JAB1 in the maintenance of neuropathic pain. By western blot, we found that CCI markedly up-regulated JAB1 expression in the dorsal root ganglion (DRG) and spinal cord. Immunofluorescent assay demonstrated that JAB1 was extensively localized in IB4-, CGRP- and NF200-positive neurons in the injured L5 DRG, and mainly co-localized with NeuN in spinal cord. In addition, we showed that CCI induced phosphorylation of p65 and JNK in vivo. Intrathe...
Source: Neurochemical Research - December 23, 2015 Category: Neuroscience Authors: Chen Y, Chen X, Yu J, Xu X, Wei X, Gu X, Liu C, Zhang D, Xu Z Tags: Neurochem Res Source Type: research
Allopurinol-induced Sweet's syndrome.
We describe the case of an 87-year-old woman with hyperuricemia who developed classic Sweet's syndrome manifestations 8 days after being treated with allopurinol. Patient's symptoms included fever, painful edema in the hands and lower limbs with non-pruritic erythematous plaques topped by pus-filled skin blisters, right eye conjunctivitis, splenomegaly and joint pain. At the emergency department, blood tests showed neutrophilic leukocytosis, inflammatory state and altered liver function. During hospitalization, she received unsuccessful treatments with two different antibiotics (namely ceftriaxone and levofloxacin), while ...
Source: International Journal of Immunopathology and Pharmacology - December 20, 2015 Category: Allergy & Immunology Tags: Int J Immunopathol Pharmacol Source Type: research
