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https://www.readbyqxmd.com/read/28328552/il-1%C3%AE-levels-are-associated-with-chronic-multisite-pain-in-people-living-with-hiv
#1
Jessica S Merlin, Andrew O Westfall, Sonya L Heath, Burel R Goodin, Jesse C Stewart, Robert E Sorge, Jarred Younger
BACKGROUND: The pathophysiology of chronic pain experienced by people living with HIV (PLWH) in the current antiretroviral treatment era is poorly understood. We sought to investigate the relationship between inflammation and chronic pain in PLWH. We hypothesized that, among PLWH who have undetectable HIV viral loads, those with Chronic Multisite Pain (CMP) would have higher levels of circulating pain-related inflammatory markers than those without chronic pain. SETTING: This study was conducted at the University of Alabama at Birmingham's Center for AIDS Research Network of Integrated Clinical System (CNICS) site...
March 20, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28327442/immune-cells-and-mediators-involved-in-the-inflammatory-responses-induced-by-a-p-i-metalloprotease-and-a-phospholipase-a2-from-bothrops-atrox-venom
#2
Danilo L Menaldo, Carolina P Bernardes, Karina F Zoccal, Anna L Jacob-Ferreira, Tássia R Costa, Maria P F M Del Lama, Rose M Z G Naal, Fabiani G Frantz, Lúcia H Faccioli, Suely V Sampaio
Bothrops envenomations can promote severe inflammatory responses by inducing edema, pain, leukocyte recruitment and release of chemical mediators by local cells. In the present study, two toxins from Bothrops atrox venom (the P-I metalloprotease Batroxase and the acidic phospholipase A2 BatroxPLA2) were evaluated in relation to their inflammatory effects induced in vivo and in vitro, mainly focusing on the participation of different immune cells and inflammatory mediators. Both toxins mainly promoted acute inflammatory responses with significant recruitment of neutrophils in the early hours (1-4h) after administration into the peritoneal cavity of C57BL/6 mice, and increased infiltration of mononuclear cells especially after 24h...
March 16, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28326946/polyamidoamine-dendrimer-conjugated-triamcinolone-acetonide-attenuates-nerve-injury-induced-spinal-cord-microglia-activation-and-mechanical-allodynia
#3
Hwisung Kim, Boomin Choi, Hyoungsub Lim, Hyunjung Min, Jae Hoon Oh, Sunghyun Choi, Joung Goo Cho, Jong-Sang Park, Sung Joong Lee
Background Accumulating evidence on the causal role of spinal cord microglia activation in the development of neuropathic pain after peripheral nerve injury suggests that microglial activation inhibitors might be useful analgesics for neuropathic pain. Studies also have shown that polyamidoamine dendrimer may function as a drug delivery vehicle to microglia in the central nervous system. In this regard, we developed polyamidoamine dendrimer-conjugated triamcinolone acetonide, a previously identified microglial activation inhibitor, and tested its analgesic efficacy in a mouse peripheral nerve injury model...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326926/potential-protein-biomarkers-for-burning-mouth-syndrome-discovered-by-quantitative-proteomics
#4
Eoon Hye Ji, Cynthia Diep, Tong Liu, Hong Li, Robert Merrill, Diana Messadi, Shen Hu
Burning mouth syndrome (BMS) is a chronic pain disorder characterized by severe burning sensation in normal looking oral mucosa. Diagnosis of BMS remains to be a challenge to oral healthcare professionals because the method for definite diagnosis is still uncertain. In this study, a quantitative saliva proteomic analysis was performed in order to identify target proteins in BMS patients' saliva that may be used as biomarkers for simple, non-invasive detection of the disease. By using isobaric tags for relative and absolute quantitation labeling and liquid chromatography-tandem mass spectrometry to quantify 1130 saliva proteins between BMS patients and healthy control subjects, we found that 50 proteins were significantly changed in the BMS patients when compared to the healthy control subjects ( p ≤ 0...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28323139/inflammation-and-post-operative-recovery-in-patients-undergoing-total-knee-arthroplasty-secondary-analysis-of-a-randomized-controlled-trial
#5
Anne Langkilde, Thomas Linding Jakobsen, Thomas Quaade Bandholm, Jesper Eugen-Olsen, Thomas Blauenfeldt, Janne Petersen, Ove Andersen
OBJECTIVE: Reduced function persists for many patients after total knee arthroplasty (TKA). Inflammation is part of osteoarthritis' pathophysiology, and surgery induces a marked inflammatory response. We therefore wanted to explore the role of inflammation in long-term recovery after TKA, and thus conducted this secondary analysis of our randomized controlled trial of physical rehabilitation +/- progressive strength training (PST). We aimed to investigate whether A) inflammation is associated with functional performance, knee-extension strength, and knee pain before TKA; B) PST affects inflammation, and the inflammatory state over time; C) baseline or surgery-induced inflammation modifies the effect of rehabilitation +/- PST on change in 6-minute walk test (Δ6MWT); and D) baseline or surgery-induced inflammation is associated with Δ6MWT following TKA...
March 16, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28319517/effects-of-a-lidocaine-loaded-poloxamer-alginate-cacl2-mixture-on-postoperative-pain-and-adhesion-in-a-rat-model-of-incisional-pain
#6
Geun Joo Choi, Hyun Kang, Min Eui Hong, Hwa Yong Shin, Chong Wha Baek, Yong Hun Jung, Younsuk Lee, Jeong Wook Kim, I L Kyu Park, Wan Jin Cho
BACKGROUND: Pain and adhesion are problematic issues after surgery. Lidocaine has analgesics and anti-inflammatory properties, and poloxamer/alginate/CaCl2 (PACM) is a known antiadhesive agent. We hypothesized that the novel combination of lidocaine as chemical barrier and PACM as physical barrier would be beneficial for both postoperative pain and adhesion. The purpose of this study was to investigate the effects of lidocaine-loaded PACM in a rat model of incisional pain. Primary outcome was to evaluate between-group differences for the mechanical withdrawal threshold (MWT) measured by von Frey filament in various concentrations of lidocaine-loaded PACM applied, PACM applied, and sham-operated groups...
March 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319508/exercise-combined-with-ultrasound-attenuates-neuropathic-pain-in-rats-associated-with-downregulation-of-il-6-and-tnf-%C3%AE-but-with-upregulation-of-il-10
#7
Po-Ching Huang, Kun-Ling Tsai, Yu-Wen Chen, Heng-Teng Lin, Ching-Hsia Hung
BACKGROUND: Although there are several evidences that suggest efficacies of therapeutic ultrasound (TU) or treadmill exercise (TE) to alleviate nerve injury-associated pain, molecular mechanisms are less clear. We aimed to investigate the impact of TU and/or TE on neuropathic pain induced by chronic constriction injury (CCI) of the sciatic nerve and their roles of proinflammatory and anti-inflammatory cytokines. METHODS: Rats were randomly divided into (n = 10 per group) sham operation (sham), CCI procedure followed by false application of TU (CCI + TU0), CCI procedure followed by false application of TU and TE (CCI + TU0 + TE), CCI, and CCI procedure followed by TU alone (CCI + TU), TE alone (CCI + TE), or both TU and TE (CCI + TU + TE) groups...
March 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28306638/the-proinflammatory-cytokines-il-1%C3%A3-and-tnf-%C3%AE-influence-human-annulus-cell-signaling-cues-for-neurite-growth-in-vitro-co-culture-studies
#8
Helen E Gruber, Brittany Jones, Emilio Marrero, Edward N Hanley
STUDY DESIGN: IRB-approved research using human annulus cells co-cultured with F11 nerve cells. OBJECTIVE: To perform functional, kinetic assays of neurite dynamics and media neurotrophin measurement to test whether proinflammatory cytokines influence annulus cells' signaling cues for neurite growth/repulsion. SUMMARY OF BACKGROUND DATA: Nerves grow in response to signaling molecules called neurotrophins which disc cells produce (e.g. brain-derived neurotrophic factor (BDNF), glial cell-line derived neurotrophic factor (GDNF) and neurotrophin 3 (NT3)) and which influence neuron survival, differentiation and migration...
March 16, 2017: Spine
https://www.readbyqxmd.com/read/28302538/protective-effects-of-garcinol-against-neuropathic-pain-evidence-from-in-vivo-and-in-vitro-studies
#9
Yi-Wei Wang, Xiang Zhang, Chun-Long Chen, Qing-Zhen Liu, Jia-Wen Xu, Qing-Qing Qian, Wei-Yan Li, Yan-Ning Qian
Neuroinflammatory processes have a vital role in the pathogenesis of neuropathic pain. Garcinol, harvested from Garcinia indica, is known to exert potent anti-inflammatory properties. Recent studies have indicated that Garcinol may inhibit activation of nuclear factor-κB (NF-κB) by inhibiting NF-κB/p65 acetylation. These findings prompted us to evaluate the protective effects of Garcinol in the lumbar fifth spinal nerve ligation (SNL)-induced rat model of neuropathic pain and Lipopolysaccharide(LPS)-stimulated primary cultured microglia...
March 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28296926/relationship-between-decreased-lower-extremity-muscle-mass-and-knee-pain-severity-in-both-the-general-population-and-patients-with-knee-osteoarthritis-findings-from-the-knhanes-v-1-2
#10
Yun-Hong Cheon, Hyun-Ok Kim, Young Sun Suh, Min Gyo Kim, Wan-Hee Yoo, Rock Bum Kim, Hyun-Su Yang, Sang-Il Lee, Ki-Soo Park
OBJECTIVE: To identify the prevalence of and risk factors for knee pain and radiographic knee osteoarthritis (RKOA) and to investigate the relationship between decreased lower extremity muscle mass (DLEM) and knee pain severity. METHODS: Using data from the Korea National Health and Nutrition Examination Survey, 3,278 participants who were ≥50 years old and who underwent dual x-ray absorptiometry, plain knee radiographs and completed a knee pain questionnaire were enrolled...
2017: PloS One
https://www.readbyqxmd.com/read/28293317/tumour-necrosis-factor-%C3%AE-interleukin-1-and-interleukin-6-serum-levels-and-its-correlation-with-pain-severity-in-chronic-tension-type-headache-patients-analysing-effect-of-dexketoprofen-administration
#11
Aldy Safruddin Rambe, Hasan Sjahrir, Moh Hasan Machfoed
AIM: The purpose of this study is to see the effect of Dexketoprofen on TNF-α, IL-1, and IL-6 serum levels in Chronic Tension-Type Headache (CTTH) patients and its correlation with pain severity. METHOD: The study subjects were recruited consecutively from the study population. Venous blood was taken at baseline to measure serum levels of TNF-α, IL-1, and IL-6 and after ten consecutive days of Dexketoprofen 25 mg once daily. RESULTS: Twenty three subjects participated in this study, 3 male (13...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28286408/antinociceptive-effect-of-intrathecal-injection-of-genetically-engineered-human-bone-marrow-stem-cells-expressing-the-human-proenkephalin-gene-in-a-rat-model-of-bone-cancer-pain
#12
Yi Sun, Yuke Tian, Haifeng Li, Dengwen Zhang, Qiang Sun
Background. This study aimed to investigate the use of human bone marrow mesenchymal stem cells (hBMSCs) genetically engineered with the human proenkephalin (hPPE) gene to treat bone cancer pain (BCP) in a rat model. Methods. Primary cultured hBMSCs were passaged and modified with hPPE, and the cell suspensions (6 × 10(6)) were then intrathecally injected into a rat model of BCP. Paw mechanical withdrawal threshold (PMWT) was measured before and after BCP. The effects of hPPE gene transfer on hBMSC bioactivity were analyzed in vitro and in vivo...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28284149/microrna-93-alleviates-neuropathic-pain-through-targeting-signal-transducer-and-activator-of-transcription-3
#13
Xue-Tao Yan, Li-Juan Ji, Zhiyu Wang, Xingjun Wu, Quan Wang, Shujie Sun, Jing-Min Lu, Yang Zhang
Emerging evidence suggests that microRNAs (miRNAs) play a critical role in the pathogenesis of neuropathic pain. However, the exact role of miRNAs in regulating neuropathic pain remains largely unknown. In this study, we aimed to investigate the potential role of miR-93 in a rat model of neuropathic pain induced by chronic constriction sciatic nerve injury (CCI). We found a significant decrease of miR-93 in the spinal cord of CCI rats compared with sham rats. Overexpression of miR-93 significantly alleviated neuropathic pain development and reduced inflammatory cytokine expression, including interleukin (IL)-1β, tumor necrosis factor (TNF)-α, and IL-6 in CCI rats...
March 8, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28275689/distinct-microbiome-neuroimmune-signatures-correlate-with%C3%A2-functional-abdominal-pain-in-children-with-autism-spectrum-disorder
#14
Ruth Ann Luna, Numan Oezguen, Miriam Balderas, Alamelu Venkatachalam, Jessica K Runge, James Versalovic, Jeremy Veenstra-VanderWeele, George M Anderson, Tor Savidge, Kent C Williams
BACKGROUND & AIMS: Emerging data on the gut microbiome in autism spectrum disorder (ASD) suggest that altered host-microbe interactions may contribute to disease symptoms. Although gut microbial communities in children with ASD are reported to differ from individuals with neurotypical development, it is not known whether these bacteria induce pathogenic neuroimmune signals. METHODS: Because commensal clostridia interactions with the intestinal mucosa can regulate disease-associated cytokine and serotonergic pathways in animal models, we evaluated whether microbiome-neuroimmune profiles (from rectal biopsy specimens and blood) differed in ASD children with functional gastrointestinal disorders (ASD-FGID, n = 14) compared with neurotypical (NT) children with FGID (NT-FGID, n = 15) and without abdominal pain (NT, n = 6)...
March 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28275350/blockade-of-p2x4-receptors-inhibits-neuropathic-pain-related-behavior-by-preventing-mmp-9-activation-and-consequently-pronociceptive-interleukin-release-in-a-rat-model
#15
Agnieszka M Jurga, Anna Piotrowska, Wioletta Makuch, Barbara Przewlocka, Joanna Mika
Neuropathic pain is still an extremely important problem in today's medicine because opioids, which are commonly used to reduce pain, have limited efficacy in this type of pathology. Therefore, complementary therapy is needed. Our experiments were performed in rats to evaluate the contribution of the purinergic system, especially P2X4 receptor (P2X4R), in the modulation of glia activation and, consequently, the levels of nociceptive interleukins after chronic constriction injury (CCI) of the right sciatic nerve, a rat model of neuropathic pain...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28265836/pro-inflammatory-cytokines-involvement-in-the-hesperidin-antihyperalgesic-effects-at-peripheral-and-central-levels-in-a-neuropathic-pain-model
#16
A I Carballo-Villalobos, M E González-Trujano, N Alvarado-Vázquez, F J López-Muñoz
Emerging evidence proposes a link between immune changes and pain, which is consistent with the inflammation theory and the increased incidence of neurodegenerative diseases. Flavonoids have long been used because of their anti-inflammatory potential activity and they are considered a promising alternative to alleviate neuropathic pain. The aim of this study was to investigate the antihyperalgesic effect of hesperidin and the presence of pro-inflammatory cytokines evaluated at peripheral and central levels in the chronic constriction injury as model of neuropathic pain in rats...
March 6, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28258674/ibudilast-a-non%C3%A2-selective-phosphodiesterase-inhibitor-in-brain-disorders
#17
Joanna Schwenkgrub, Małgorzata Zaremba, Dagmara Mirowska-Guzel, Iwona Kurkowska-Jastrzębska
Ibudilast (IBD) is a non‑selective (3, 4, 10, 11) phosphodiesterase (PDE) inhibitor, used mainly as a bronchodilator for the treatment of bronchial asthma. PDE play a central role in cellular function (e.g. differentiation, synaptic plasticity and inflammatory response) by metabolizing cyclic nucleotides. The results from preclinical and clinical studies indicate that IBD has a broader range of action through suppression of pro‑inflammatory cytokines (IL‑6, IL‑1β, TNF‑α), toll‑like receptor 4 blockade (TLR‑4), inhibition of a macrophage migration inhibitory factor (MIF), up‑regulation the anti‑inflammatory cytokine (IL‑10), and promotion of neurotrophic factors (GDNF, NGF, NT‑4)...
March 2, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28258328/arthroscopic-meniscus-repair-for-recurrent-subluxation-of-the-lateral-meniscus
#18
Jin Hwan Ahn, Sang Hak Lee, Kang Il Kim, Juhyun Nam
PURPOSE: This study was undertaken to diagnose and to document the clinical results and technical aspects of arthroscopic meniscus repair for recurrent subluxation with peripheral tears around the popliteal hiatus of the lateral meniscus. METHODS: Twenty-three patients (24 knees) with symptomatic recurrent subluxation of the lateral meniscus treated by arthroscopic meniscus repair were included. The inclusion criteria were: (1) patients with knee pain, locking or snapping symptoms despite 3 months of conservative treatment; (2) non-discoid lateral meniscus; (3) stable knee, and (4) tears involving the red-white or red-red zone...
March 3, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28246047/is-the-use-of-hemostatic-matrix-floseal-and-alkylene-oxide-copolymer-ostene-safe-in-spinal-laminectomies-peridural-fibrosis-assessment
#19
Oktay Gurcan, Ahmet Gurhan Gurcay, Atilla Kazanci, Evrim Onder, Salim Senturk, Murad Bavbek
OBJECTIVE: Failed Back Syndrome (FBS) is unacceptable relief of pain or recurrence of symptoms in patients after spinal surgery, such as laminectomy. One possible cause of FBS is peridural fibrosis (PF). PF is the overproduction of scar tissue adjacent to the dura mater. Bleeding can cause PF after laminectomy. Ostene is an alkylene oxide copolymer material used to stop bleeding from bony surfaces. Floseal is a gelatin thrombin matrix sealant used to assist fibrin formation and to promote coagulation...
February 25, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28243900/increased-levels-of-intramuscular-cytokines-in-patients-with-jaw-muscle-pain
#20
S Louca Jounger, N Christidis, P Svensson, T List, M Ernberg
BACKGROUND: The aim of this study was to investigate cytokine levels in the masseter muscle, their response to experimental tooth-clenching and their relation to pain, fatigue and psychological distress in patients with temporomandibular disorders (TMD) myalgia. METHODS: Forty women, 20 with TMD myalgia (Diagnostic Criteria for TMD) and 20 age-matched healthy controls participated. Intramuscular microdialysis was performed to sample masseter muscle cytokines. After 140 min (baseline), a 20-minute tooth-clenching task was performed (50% of maximal voluntary contraction force)...
December 2017: Journal of Headache and Pain
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