keyword
MENU ▼
Read by QxMD icon Read
search

chronic persistent nerve pain

keyword
https://www.readbyqxmd.com/read/27864046/acute-colitis-chronically-alters-immune-infiltration-mechanisms-and-sensory-neuro-immune-interactions
#1
Melissa A Campaniello, Chris Mavrangelos, Samuel Eade, Andrea M Harrington, L Ashley Blackshaw, Stuart M Brierley, Scott D Smid, Patrick A Hughes
OBJECTIVE: Little is understood regarding how disease progression alters immune and sensory nerve function in colitis. We investigated how acute colitis chronically alters immune recruitment and the impact this has on re-activated colitis. To understand the impact of disease progress on sensory systems we investigated the mechanisms underlying altered colonic neuro-immune interactions after acute colitis. DESIGN: Inflammation was compared in mouse models of health, acute tri-nitrobenzene sulphonic acid (TNBS) colitis, Remission and Reactivated colitis...
November 15, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27833045/reciprocal-relationship-between-membrane-type-1-matrix-metalloproteinase-and-the-algesic-peptides-of-myelin-basic-protein-contributes-to-chronic-neuropathic-pain
#2
Sanghyun Hong, Albert G Remacle, Sergei A Shiryaev, Wonjun Choi, Swathi Hullugundi, Jennifer Dolkas, Mila Angert, Tasuku Nishihara, Tony L Yaksh, Alex Y Strongin, Veronica I Shubayev
Myelin basic protein (MBP) is an auto-antigen able to induce intractable pain from innocuous mechanical stimulation (mechanical allodynia). The mechanisms provoking this algesic MBP activity remain obscure. Our present study demonstrates that membrane type 1 matrix metalloproteinase (MT1-MMP/MMP-14) releases the algesic MBP peptides from the damaged myelin, which then reciprocally enhance the expression of MT1-MMP in nerve to sustain a state of allodynia. Specifically, MT1-MMP expression and activity in rat sciatic nerve gradually increased starting at day 3 after chronic constriction injury (CCI)...
November 7, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27822391/ultrasound-guided-genicular-nerve-thermal-radiofrequency-ablation-for-chronic-knee-pain
#3
Joshua Wong, Nicholas Bremer, Paul D Weyker, Christopher A J Webb
Osteoarthritis (OA) of the knee is one of the most common joint diseases affecting adults in the United States. For elderly patients with multiple medical comorbidities who do not wish to undergo total knee arthroplasty (TKA), lifestyle modification, pharmacologic management, and injections are the mainstay of therapy. Previously, pain management interventions were limited to intra-articular joint injections and viscosupplementation with hyaluronic acid. Fluoroscopic-guided techniques for radiofrequency ablation (RFA) of the genicular nerves have been previously described and a recent cadaveric study suggests that ultrasound-guided genicular nerve blocks can be performed accurately...
2016: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/27792212/postoperative-analgesia-for-elective-total-knee-arthroplasty-under-subarachnoid-anesthesia-with-opioids-comparison-between-epidural-femoral-block-and-adductor-canal-block-techniques-with-and-without-perineural-adjuvants-a-prospective-randomized-clinical-trial
#4
José R Ortiz-Gómez, Marta Perepérez-Candel, José M Vázquez-Torres, José M Rodriguez-Del Río, Berta Torrón-Abad, Inocencia Fornet-Ruiz, Francisco J Palacio-Abizanda
BACKGROUND: Optimal control of acute postoperative pain and prevention of chronic persistent pain in total knee arthroplasty (TKA) remain a challenge. The main hypothesis was that nerve blocks improve postoperative analgesia especially if perineural adjuvants are added. METHODS: Immediate postoperative pain (24 h) was evaluated every hour in 639 patients using a verbal rating 11-point scale for patient self-reporting of pain (VRS-11). All patients received subarachnoid anesthesia and were randomly allocated in 8 groups: control group, epidural (EA) and single shots femoral (FNB) or adductor canal blocks (ACB), both with and without adjuvants: dexamethasone (+Dexa) or dexmedetomidine (+Dexm)...
October 28, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27789649/persistent-idiopathic-facial-pain-a-prospective-systematic-study-of-clinical-characteristics-and-neuroanatomical-findings-at-3-0-tesla-mri
#5
Stine Maarbjerg, Frauke Wolfram, Tone Bruvik Heinskou, Per Rochat, Aydin Gozalov, Jannick Brennum, Jes Olesen, Lars Bendtsen
INTRODUCTION: Persistent idiopathic facial pain (PIFP) is a poorly understood chronic orofacial pain disorder and a differential diagnosis to trigeminal neuralgia. To address the lack of systematic studies in PIFP we here report clinical characteristics and neuroimaging findings in PIFP. METHODS: Data collection was prospective and standardized in consecutive PIFP patients. All patients underwent 3.0 MRI. RESULTS: In a cohort of 53 PIFP patients, the average age of onset was 44...
October 27, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27783853/physiology-of-visceral-pain
#6
G F Gebhart, Klaus Bielefeldt
Pain involving thoracic, abdominal, or pelvic organs is a common cause for physician consultations, including one-third of chronic pain patients who report that visceral organs contribute to their suffering. Chronic visceral pain conditions are typically difficult to manage effectively, largely because visceral sensory mechanisms and factors that contribute to the pathogenesis of visceral pain are poorly understood. Mechanistic understanding is particularly problematic in "functional" visceral diseases where there is no apparent pathology and pain typically is the principal complaint...
September 15, 2016: Comprehensive Physiology
https://www.readbyqxmd.com/read/27782944/chronic-sciatic-neuropathy-in-rat-reduces-voluntary-wheel-running-activity-with-concurrent-chronic-mechanical-allodynia
#7
Ryan A Whitehead, Nicholas L Lam, Melody S Sun, Joshua Sanchez, Shahani Noor, Arden G Vanderwall, Timothy R Petersen, Hugh B Martin, Erin D Milligan
BACKGROUND: Animal models of peripheral neuropathy produced by a number of manipulations are assessed for the presence of pathologic pain states such as allodynia. Although stimulus-induced behavioral assays are frequently used and important to examine allodynia (ie, sensitivity to light mechanical touch; von Frey fiber test), other measures of behavior that reflect overall function are not only complementary to stimulus-induced responsive measures, but are also critical to gain a complete understanding of the effects of the pain model on quality of life, a clinically relevant aspect of pain on general function...
October 24, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27756869/correction-of-hammertoe-deformity-with-novel-intramedullary-pip-fusion-device-versus-k-wire-fixation
#8
Seth H Richman, Marcelo Bogliolo Piancastelli Siqueira, Kirk A McCullough, Mark J Berkowitz
BACKGROUND: K-wire fixation has been the most common method of fixation for hammertoe deformity. However intramedullary devices are gaining ground in both number of available choices and in procedures performed. This study aimed to compare the outcomes of hammertoe correction performed with K-wire fixation versus a novel intramedullary fusion device (CannuLink). METHODS: A retrospective review of hammertoe correction by a single surgeon was performed from June 2011 to December 2013...
October 18, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27749354/continuous-peripheral-nerve-blocks-an-update-of-the-published-evidence-and-comparison-with-novel-alternative-analgesic-modalities
#9
Brian M Ilfeld
A continuous peripheral nerve block (CPNB) consists of a percutaneously inserted catheter with its tip adjacent to a target nerve/plexus through which local anesthetic may be administered, providing a prolonged block that may be titrated to the desired effect. In the decades after its first report in 1946, a plethora of data relating to CPNB was published, much of which was examined in a 2011 Anesthesia & Analgesia article. The current update is an evidence-based review of the CPNB literature published in the interim...
October 3, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27739618/stimulating-trpv1-externalization-and-synthesis-in-dorsal-root-ganglion-neurons-contributes-to-pge2-potentiation-of-trpv1-activity-and-nociceptor-sensitization
#10
W Ma, B St-Jacques, U Rudakou, Y N Kim
BACKGROUND: Persistent peripheral sensitization contributes to chronic pain. Plasticity of nociceptive dorsal root ganglion (DRG) neurons (nociceptors) induced by pro-inflammatory mediators contributes to sensitization. Prostaglandin E2 (PGE2) enriched in injured tissues is known not only directly to sensitize DRG neurons, but also to potentiate sensitizing effects of other pain mediators such as capsaicin and its receptor transient receptor potential vanilloid-1 (TRPV1). It remains unknown whether PGE2 potentiates TRPV1 activity by stimulating its synthesis, cell surface and axonal trafficking in DRG neurons...
October 14, 2016: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/27723896/oculofacial-pain-corneal-nerve-damage-leading-to-pain-beyond-the-eye
#11
Perry Rosenthal, David Borsook, Eric A Moulton
The cornea is supplied principally by the ophthalmic branch of the trigeminal nerve and is the most densely innervated organ in the human body. Under normal conditions, the corneal nerve terminals incorporate sensors that monitor the thickness and integrity of the tear film, which are essential for meaningful vision. A disrupted tear film or direct noxious stimulation of these corneal nerves can produce discomfort or pain limited to the affected surface. Damage to these nerves can sometimes lead to a chronic neuropathic condition, where pain persists months following the initial insult, long after the nerves appear to have healed in the cornea itself following treatment...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27685349/screening-and-optimization-of-nerve-targets-and-parameters-reveals-inhibitory-effect-of-pudendal-stimulation-on-rat-bladder-hypersensitivity
#12
Timothy J Ness, Alan Randich, Dwight E Nelson, Xin Su
BACKGROUND AND OBJECTIVES: Neuromodulation has been reported to reliably improve symptoms of bladder overactivity and sometimes pain. The effect of electrical stimulation of several nerve pathways demonstrated to alter cystometric responses to bladder distension was examined on nociceptive responses in models of bladder hypersensitivity. METHODS: Bladder hypersensitivity was produced by several published methods including neonatal inflammation, acute inflammation, and chronic stress...
November 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27646288/histone-deacetylase-inhibitor-induced-emergence-of-synaptic-%C3%AE-opioid-receptors-and-behavioral-antinociception-in-persistent-neuropathic-pain
#13
Wenjuan Tao, Wenjie Zhou, Yuping Wang, Tingting Sun, Haitao Wang, Zhi Zhang, Yan Jin
The efficacy of opioids in patients with chronic neuropathic pain remains controversial. Although activation of δ-opioid receptors (DORs) in the brainstem reduces inflammation-induced persistent hyperalgesia, it is not effective under persistent neuropathic pain conditions and these clinical problems remain largely unknown. In this study, by using a chronic constriction injury (CCI) of the sciatic nerve in rats, we found that in the brainstem nucleus raphe magnus (NRM), DORs emerged on the surface membrane of central synaptic terminals on day 3 after CCI surgery and disappeared on day 14...
December 17, 2016: Neuroscience
https://www.readbyqxmd.com/read/27641322/a-new-model-of-nerve-injury-in-the-rat-reveals-a-role-of-regulator-of-g-protein-signaling-4-in-tactile-hypersensitivity
#14
Giuliano Taccola, Pierre J Doyen, Jonathan Damblon, Nejada Dingu, Beatrice Ballarin, Arnaud Steyaert, Anne des Rieux, Patrice Forget, Emmanuel Hermans, Barbara Bosier, Ronald Deumens
Tactile hypersensitivity is one of the most debilitating symptoms of neuropathic pain syndromes. Clinical studies have suggested that its presence at early postoperative stages may predict chronic (neuropathic) pain after surgery. Currently available animal models are typically associated with consistent tactile hypersensitivity and are therefore limited to distinguish between mechanisms that underlie tactile hypersensitivity as opposed to mechanisms that protect against it. In this study we have modified the rat model of spared nerve injury, restricting the surgical lesion to a single peripheral branch of the sciatic nerve...
September 15, 2016: Experimental Neurology
https://www.readbyqxmd.com/read/27622550/the-antinociceptive-properties-of-the-corydalis-yanhusuo-extract
#15
Lien Wang, Yan Zhang, Zhiwei Wang, Nian Gong, Tae Dong Kweon, Benjamin Vo, Chaoran Wang, Xiuli Zhang, Jae Yoon Chung, Amal Alachkar, Xinmiao Liang, David Z Luo, Olivier Civelli
Corydalis yanhusuo. W.T. extracts (YHS) are widely used for the treatment of pain and inflammation. There are a few studies that assessed the effects of YHS in pain assays; however, none of these studies has systematically compared its activities in the different pain animal modes namely: acute, inflammatory and chronic pain. Furthermore, little is known about the mechanism of YHS activity in these assays. The aim of this study was to systematically evaluate the antinociceptive properties of YHS by testing it in four standardized pain assays and to investigate its mechanism...
2016: PloS One
https://www.readbyqxmd.com/read/27621481/hcn2-ion-channels-basic-science-opens-up-possibilities-for-therapeutic-intervention-in-neuropathic-pain
#16
REVIEW
Christoforos Tsantoulas, Elizabeth R Mooney, Peter A McNaughton
Nociception - the ability to detect painful stimuli - is an invaluable sense that warns against present or imminent damage. In patients with chronic pain, however, this warning signal persists in the absence of any genuine threat and affects all aspects of everyday life. Neuropathic pain, a form of chronic pain caused by damage to sensory nerves themselves, is dishearteningly refractory to drugs that may work in other types of pain and is a major unmet medical need begging for novel analgesics. Hyperpolarisation-activated cyclic nucleotide (HCN)-modulated ion channels are best known for their fundamental pacemaker role in the heart; here, we review data demonstrating that the HCN2 isoform acts in an analogous way as a 'pacemaker for pain', in that its activity in nociceptive neurons is critical for the maintenance of electrical activity and for the sensation of chronic pain in pathological pain states...
September 15, 2016: Biochemical Journal
https://www.readbyqxmd.com/read/27621368/the-effects-of-extended-pain-on-behavior-recent-progress
#17
REVIEW
Ted B Usdin, Eugene L Dimitrov
Chronic pain is frequently associated with anxiety, depression, and cognitive dysfunction. This review discusses recent work in rodents that contributes to the understanding of their neurobiological links. Brain regions that contain circuits that mediate persistent changes in behavior that are caused by nerve injury or joint inflammation include the rostral anterior cingulate and other parts of the medial prefrontal cortex, the basolateral and central nucleus of the amygdala, and the nucleus accumbens. Functional changes, including increases in the activity within specific neuronal pathways and in the levels of specific synaptic components, that are associated with the behavior changes, or are in some cases necessary for them, have recently been identified...
October 2016: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/27592808/ablation-of-the-basivertebral-nerve-for-treatment-of-back-pain-a-clinical-study
#18
Stephan Becker, Alexander Hadjipavlou, Michael H Heggeness
BACKGROUND CONTENT: Lumbar axial back pain arising from degenerative disc disease continues to be a challenging clinical problem whether treated with non-surgical management, local injection, or motion segment stabilization and fusion. PURPOSE: To determine the efficacy of intraosseous basivertebral nerve ablation for the treatment of chronic lumbar back pain in a clinical setting. STUDY DESIGN: Patients meeting predefined inclusion/exclusion criteria were enrolled in a study using RF energy to ablate the basivertebral nerve within the vertebral bodies adjacent to the diagnosed level...
September 1, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27591465/postoperative-persistent-chronic-pain-what-do-we-know-about-prevention-risk-factors-and-treatment
#19
Durval Campos Kraychete, Rioko Kimiko Sakata, Leticia de Oliveira Carvalho Lannes, Igor Dórea Bandeira, Eduardo Jun Sadatsune
BACKGROUND AND OBJECTIVES: Postoperative persistent chronic pain (POCP) is a serious health problem, disabling, undermining the quality of life of affected patients. Although more studies and research have addressed the possible mechanisms of the evolution from acute pain to chronic postoperatively, there are still no consistent data about the risk factors and prevention. This article aims to bring what is in the panorama of the current literature available. CONTENT: This review describes the definition, risk factors, and mechanisms of POCD, its prevention and treatment...
September 2016: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/27576790/challenges-to-develop-novel-anti-inflammatory-and-analgesic-drugs
#20
Bálint Botz, Kata Bölcskei, Zsuzsanna Helyes
Chronic inflammatory diseases and persistent pain of different origin represent common medical, social, and economic burden, and their pharmacotherapy is still an unresolved issue. Therefore, there is a great and urgent need to develop anti-inflammatory and analgesic agents with novel mechanisms of action, but it is a very challenging task. The main problem is the relatively large translational gap between the preclinical experimental data and the clinical results due to characteristics of the models, difficulties with the investigational techniques particularly for pain, as well as species differences in the mechanisms...
August 31, 2016: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
keyword
keyword
11777
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"