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https://www.readbyqxmd.com/read/28345130/antiallodynic-activity-of-ceftriaxone-and-clavulanic-acid-in-acute-administration-is-associated-with-serum-tnf-%C3%AE-modulation-and-activation-of-dopaminergic-and-opioidergic-systems
#1
A Ochoa-Aguilar, M A Sotomayor-Sobrino, R Jaimez, R Rodríguez, R Plancarte-Sánchez, R Ventura-Martinez
Preclinical Research The aim of this study was to determine the antiallodynic effect of acute administration of the β-lactam antimicrobials, ceftriaxone (CFX) and clavulanic acid (CLAV), for the control of established pain on a model of neuropathic pain (NP). We also investigated the involvement of dopaminergic and opioidergic pathways as well as alterations in serum concentrations of TNF-α in the antiallodynic actions of these drugs. CFX, CLAV, or gabapentin (GAP), a reference drug, were administered i.p...
March 26, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28343377/protein-kinase-c-mediates-the-corticosterone-induced-sensitization-of-dorsal-root-ganglion-neurons-innervating-the-rat-stomach
#2
Meng Li, Lu Xue, Hong-Yan Zhu, Hongjun Wang, Xue Xu, Geping Wu, Guang-Yin Xu
Background/Aims: Gastric hypersensitivity contributes to abdominal pain in patients with functional dyspepsia (FD). Recent studies showed that hormones induced by stress are correlated with visceral hypersensitivity. However, the precise mechanisms underlying gastric hypersensitivity remain largely unknown. The aim of the present study was designed to investigate the roles of corticosterone (CORT) on excitability of dorsal root ganglion (DRG) neurons innervating the stomach. Methods: DRG neurons innervating the stomach were labeled by DiI injection into the stomach wall...
March 26, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28343048/protective-effect-of-cddo-ea-against-high-glucose-induced-oxidative-injury-via-the-nrf2-ho-1-pathway
#3
Cun-Xin Zhang, Ting Wang, Jin-Feng Ma, Yang Liu, Zheng-Gang Zhou, De-Chun Wang
BACKGROUND CONTEXT: Intervertebral disc degeneration (IDD) is the main cause of low back pain, and nucleus pulposus (NP) cell apoptosis is an important risk factor of IDD. However, the molecular mechanism of this disease remains unknown. PURPOSE: To assess the potential protective effect of CDDO-ethyl amide (EA) against high-glucose-induced oxidative stress injury in NP cells and to investigate the mechanism of antioxidative effects and apoptotic inhibition. STUDY DESIGN/SETTING: To find new molecule to inhibit intervertebral disc degeneration...
March 22, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28342924/effect-of-an-anterior-cingulotomy-on-pain-cognition-and-sensory-pathways
#4
Guan-Chyuan Wang, Tomor Harnod, Tsung-Lang Chou, Kuan-Pin Chen
No abstract text is available yet for this article.
March 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28341939/the-basic-pharmacology-of-opioids-informs-the-opioid-discourse-about-misuse-and-abuse-a-review
#5
REVIEW
Joseph V Pergolizzi, Jo Ann LeQuang, Garrett K Berger, Robert B Raffa
Morphine and other opioids are widely used to manage moderate to severe acute pain syndromes, such as pain associated with trauma or postoperative pain, and they have been used to manage chronic pain, even chronic nonmalignant pain. However, recent years have seen a renewed recognition of the potential for overuse, misuse, and abuse of opioids. Therefore, prescribing opioids is challenging for healthcare providers in that clinical effectiveness must be balanced against negative outcomes-with the possibility that neither are achieved perfectly...
March 24, 2017: Pain and Therapy
https://www.readbyqxmd.com/read/28337527/phase-ii-study-of-the-c-met-inhibitor-tivantinib-arq-197-in-patients-with-relapsed-or-relapsed-refractory-multiple-myeloma
#6
Muhamed Baljevic, Shadia Zaman, Veerabhadran Baladandayuthapani, Yan Heather Lin, Claudia Morales de Partovi, Zuzana Berkova, Behrang Amini, Sheeba K Thomas, Jatin J Shah, Donna M Weber, Min Fu, Charles S Cleeland, Xin Shelley Wang, Christine M Stellrecht, Richard E Davis, Varsha Gandhi, Robert Z Orlowski
The hepatocyte growth factor/c-MET pathway has been implicated in the pathobiology of multiple myeloma, and c-MET inhibitors induce myeloma cell apoptosis, suggesting that they could be useful clinically. We conducted a phase II study with the c-MET inhibitor tivantinib in patients with relapsed, or relapsed and refractory myeloma whose disease had progressed after one to four prior therapies. Tivantinib, 360 mg orally per dose, was administered twice daily continuously over a 4-week treatment cycle without a cap on the number of allowed cycles, barring undue toxicities or disease progression...
March 23, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28334605/new-horizons-in-diabetic-neuropathy-mechanisms-bioenergetics-and-pain
#7
REVIEW
Eva L Feldman, Klaus-Armin Nave, Troels S Jensen, David L H Bennett
Pre-diabetes and diabetes are a global epidemic, and the associated neuropathic complications create a substantial burden on both the afflicted patients and society as a whole. Given the enormity of the problem and the lack of effective therapies, there is a pressing need to understand the mechanisms underlying diabetic neuropathy (DN). In this review, we present the structural components of the peripheral nervous system that underlie its susceptibility to metabolic insults and then discuss the pathways that contribute to peripheral nerve injury in DN...
March 22, 2017: Neuron
https://www.readbyqxmd.com/read/28331362/anesthesia-for-the-patient-undergoing-total-knee-replacement-current-status-and-future-prospects
#8
REVIEW
Zachary A Turnbull, Dahniel Sastow, Gregory P Giambrone, Tiffany Tedore
Total knee arthroplasty (TKA) has become one of the most common orthopedic surgical procedures performed nationally. As the population and surgical techniques for TKAs have evolved over time, so have the anesthesia and analgesia used for these procedures. General anesthesia has been the dominant form of anesthesia utilized for TKA in the past, but regional anesthetic techniques are on the rise. Multiple studies have shown the potential for regional anesthesia to improve patient outcomes, such as a decrease in intraoperative blood loss, length of stay, and patient mortality...
2017: Local and Regional Anesthesia
https://www.readbyqxmd.com/read/28326931/overexpression-of-suppressor-of-cytokine-signaling-3-in-dorsal-root-ganglion-attenuates-cancer-induced-pain-in-rats
#9
Jinrong Wei, Meng Li, Dieyu Wang, Hongyan Zhu, Xiangpeng Kong, Shusheng Wang, You-Lang Zhou, Zhong Ju, Guang-Yin Xu, Guo-Qin Jiang
Background Cancer-induced pain (CIP) is one of the most severe types of chronic pain with which clinical treatment remains challenging and the involved mechanisms are largely unknown. Suppressor of cytokine signaling 3 (SOCS3) is an important intracellular protein and provides a classical negative feedback loop, thus involving in a wide variety of processes including inflammation and nociception. However, the role of SOCS3 pathway in CIP is poorly understood. The present study was designed to investigate the role of SOCS3 in dorsal root ganglion (DRG) in the development of CIP...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326929/dendritic-spine-dysgenesis-in-superficial-dorsal-horn-sensory-neurons-after-spinal-cord-injury
#10
Xiaoyu C Cao, Laura W Pappalardo, Stephen G Waxman, Andrew M Tan
Neuropathic pain is a major complication of spinal cord injury, and despite aggressive efforts, this type of pain is refractory to available clinical treatment. Our previous work has demonstrated a structure-function link between dendritic spine dysgenesis on nociceptive sensory neurons in the intermediate zone, laminae IV/V, and chronic pain in central nervous system and peripheral nervous system injury models of neuropathic pain. To extend these findings, we performed a follow-up structural analysis to assess whether dendritic spine remodeling occurs on superficial dorsal horn neurons located in lamina II after spinal cord injury...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326700/-in-vitro-investigation-on-the-mechanism-of-cyclooxygenase-2-upregulation-induced-by-spleen-tyrosine-kinase-nuclear-factor-%C3%AE%C2%BAb-signaling-in-cancer-pain-caused-by-oral-cancer-associated-macrophage
#11
Lin Jie, Wang Miao, Ji Yang, Liu Le, Gao Pan, Li Chunjie
OBJECTIVE: This study explores the mechanism of cyclooxygenase-2 (COX-2) upregulation in oral cancers associated with macrophage by using molecular biology techniques and primary culture of murine macrophage. METHODS: Murine macrophage was induced by macrophage colony-stimulating factor (M-CSF) and Cal27 conditional medium (CM). Purity of the macrophage was detected through CD68 immunofluorescence staining. Inhibitors of spleen tyrosine kinase (Syk) and nuclear factor κB (NFκB) were used to inhibit these pathways...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28326335/multiple-fractures-pain-and-severe-disability-in-a-patient-with-adult-onset-hypophosphatasia
#12
Neil A Braunstein
Hypophosphatasia (HPP) is a rare, inherited metabolic bone disease resulting from mutations in the gene encoding tissue non-specific alkaline phosphatase. The biochemical hallmark and key diagnostic indicator is low alkaline phosphatase activity, which leads to a variety of clinical manifestations across all ages. The diagnosis is easily missed in adults, who frequently present with nonspecific clinical manifestations such as fractures, osteomalacia, and pain. Here, the pathway to diagnosis and disease course is described in an adult patient presenting with pain...
June 2016: Bone Reports
https://www.readbyqxmd.com/read/28325815/neuropathic-pain-promotes-adaptive-changes-in-gene-expression-in-brain-networks-involved-in-stress-and-depression
#13
Giannina Descalzi, Vasiliki Mitsi, Immanuel Purushothaman, Sevasti Gaspari, Kleopatra Avrampou, Yong-Hwee Eddie Loh, Li Shen, Venetia Zachariou
Neuropathic pain is a complex chronic condition characterized by various sensory, cognitive, and affective symptoms. A large percentage of patients with neuropathic pain are also afflicted with depression and anxiety disorders, a pattern that is also seen in animal models. Furthermore, clinical and preclinical studies indicate that chronic pain corresponds with adaptations in several brain networks involved in mood, motivation, and reward. Chronic stress is also a major risk factor for depression. We investigated whether chronic pain and stress affect similar molecular mechanisms and whether chronic pain can affect gene expression patterns that are involved in depression...
March 21, 2017: Science Signaling
https://www.readbyqxmd.com/read/28323246/the-role-of-spinal-gabab-receptors-in-cancelr-induced-bone-pain-in-rats
#14
Ya-Qun Zhou, Shu-Ping Chen, Dai-Qiang Liu, Anne Manyande, Wen Zhang, Shao-Bing Yang, Bing-Rui Xiong, Qiao-Chu Fu, Zhen-Peng Song, Heike Rittner, Da-Wei Ye, Yu-Ke Tian
Cancer-induced bone pain (CIBP) remains a major challenge in advanced cancer patients due to our lack of understanding of its mechanisms. Previous studies have demonstrated the vital role of GABAB receptors (GABABRs) in regulating nociception and various neuropathic pain models have shown diminished activity of GABABRs. However, the role of spinal GABABRs in CIBP remains largely unknown. In this study, we investigated the specific cellular mechanisms of GABABRs in the development and maintenance of CIBP in rats...
March 18, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28322984/pain-related-evoked-potentials-after-intraepidermal-electrical-stimulation-to-a%C3%AE-and-c-fibers-in-patients-with-neuropathic-pain
#15
Shigeki Omori, Sagiri Isose, Sonoko Misawa, Keisuke Watanabe, Yukari Sekiguchi, Kazumoto Shibuya, Minako Beppu, Hiroshi Amino, Satoshi Kuwabara
Neuropathic pain can result from neuronal hyperexcitability and complex interactions of the nociceptive pathways. Intraepidermal electrical stimulation (IES) is a novel technique that can selectively activate Aδ and C fibers. To investigate patterns of changes in Aδ- and C-mediated brain responses in patients with neuropathic pain using IES, we recorded pain-related evoked potential (PREP) after IES of Aδ and C fibers in 20 patients with neuropathic pain and 15 age-matched healthy volunteers. We evaluated PREP latencies, amplitudes, and amplitude ratios of PREPs after C/Aδ-fiber stimulation...
March 18, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28322839/derivatives-of-furanditerpenes-from-pterodon-genus-pharmacological-studies-disclose-their-potential-as-chronic-pain-relief-in-mice
#16
Humberto M Spindola, Rogério Grando, Mariana C Figueiredo, Rosana Basting, N C A Queiroz, Ângelo de Fátima, João E de Carvalho, Zaijie J Wang, M A Foglio
Pterodon genus fruits are commercially available at the Brazilian medicinal market used in folk medicine due to their anti-inflammatory, analgesic, and anti-rheumatic effects. Previous studies demonstrated that furanditerpenes possessing vouacapan skeleton, isolated from Pterodon genus, possess expressive antinociceptive activities, with promising moiety for the development of new analgesic products. The antinociceptive properties of compounds 6α,7β- 6α-hidroxivouacapan-7β-17β-lactone (HVL) and 6α-oxovouacapan-7β-17β-lactone (OVL), semi-synthetic analogues of furanditerpenes previously reported as analgesic agents were evaluated on animal experimental models (Spindola et al...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28322749/cannabinoid-receptor-1-contributes-to-sprouted-innervation-in-endometrial-ectopic-growth-through-mitogen-activated-protein-kinase-activation
#17
Hongxiu Han, Xizi Liang, Juan Wang, Qianqian Zhao, Mei Yang, Weifang Rong, Guohua Zhang
The endocannabinoid system regulates neurite outgrowth and neurogenesis during development of the central nervous system. Cannabinoid receptor 1 (CB1R) is expressed in neurons, including the somata and fibers, that innervate the endometrial ectopic cyst in rats. Here, we investigated the contribution of CB1R and its downstream signaling to the innervation of endometrial ectopic growth. We found that intrathecal injection of a CB1R agonist enhanced both the density of protein gene product (PGP) 9.5-immunoreactive sprouted nerve fibers and the protein level of PGP 9...
March 17, 2017: Brain Research
https://www.readbyqxmd.com/read/28321270/autophagy-is-a-protective-response-to-the-oxidative-damage-to-endplate-chondrocytes-in-intervertebral-disc-implications-for-the-treatment-of-degenerative-lumbar-disc
#18
Ke Chen, Xiaohua Lv, Wei Li, Fei Yu, Jianjing Lin, Junxuan Ma, Deming Xiao
Low back pain (LBP) is the leading cause of disability in the elderly. Intervertebral disc degeneration (IDD) was considered as the main cause for LBP. Degeneration of cartilaginous endplate was a crucial harmful factor during the initiation and development of IDD. Oxidative stress was implicated in IDD. However, the underlying molecular mechanism for the degeneration of cartilaginous endplate remains elusive. Herein, we found that oxidative stress could induce apoptosis and autophagy in endplate chondrocytes evidenced by western blot analysis, flow cytometry, immunofluorescence staining, GFP-LC3B transfection, and MDC staining...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28321269/exploratory-analysis-of-osteoarthritis-progression-among-medication-users-data-from-the-osteoarthritis-initiative
#19
Jeffrey B Driban, Grace H Lo, Charles B Eaton, Kate L Lapane, Michael Nevitt, William F Harvey, Charles E McCulloch, Timothy E McAlindon
BACKGROUND: We conducted an exploratory analysis of osteoarthritis progression among medication users in the Osteoarthritis Initiative to identify interventions or pathways that may be associated with disease modification and therefore of interest for future clinical trials. METHODS: We used participants from the Osteoarthritis Initiative with annual medication inventory data between the baseline and 36-month follow-up visit (n = 2938). Consistent medication users were defined for each medication classification as a participant reporting at all four annual visits that they were regularly using an oral prescription medication at the time of the visit...
December 2016: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28321113/acid-sensing-ion-channel-1a-in-the-amygdala-is-involved-in-pain-and-anxiety-related-behaviours-associated-with-arthritis
#20
Youssef Aissouni, Abderrahim El Guerrab, Al Mahdy Hamieh, Jérémy Ferrier, Maryse Chalus, Diane Lemaire, Stéphanie Grégoire, Monique Etienne, Alain Eschalier, Denis Ardid, Eric Lingueglia, Fabien Marchand
Chronic pain is associated with anxiety and depression episodes. The amygdala plays a key role in the relationship between emotional responses and chronic pain. Here, we investigated the role of Acid-Sensing Ion Channels 1a within the basolateral amygdala (BLA), in pain and associated anxiety in a rat model of monoarthritis (MoAr). Administration within the BLA of PcTx1 or mambalgin-1, two specific inhibitors of ASIC1a-containing channels significantly inhibited pain and anxiety-related behaviours in MoAr rats...
March 2, 2017: Scientific Reports
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