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https://www.readbyqxmd.com/read/28644012/sigma-2-receptor-tmem97-agonists-produce-long-lasting-anti-neuropathic-pain-effects-in-mice
#1
James J Sahn, Galo L Mejia, Pradipta R Ray, Stephen F Martin, Theodore John Price
Neuropathic pain is an important medical problem with few effective treatments. The sigma 1 receptor (σ1R) is a potential target for neuropathic pain therapeutics, and antagonists for this receptor are effective in preclinical models and are currently in phase II clinical trials. Relatively little is known about the σ2R, which has recently been identified as transmembrane protein 97 (Tmem97). We generated a series of σ1R and σ2R/Tmem97 agonists and antagonists and tested them for efficacy in the mouse spared nerve injury (SNI) model...
June 23, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28639826/imaging-appearance-of-advanced-chronic-adhesive-arachnoiditis-a-retrospective-review
#2
Tara L Anderson, Jonathan M Morris, John T Wald, Amy L Kotsenas
OBJECTIVE: Chronic adhesive arachnoiditis (CAA) is rare and has potentially devastating clinical consequences. The objective of this article is to review the clinical features of CAA and describe its appearance on imaging, to increase radiologists' awareness of this challenging diagnosis. MATERIALS AND METHODS: Twenty-nine cases of advanced CAA seen at our institution over 18 years (1995-2013) were retrospectively reviewed. Chart review was performed, with attention given to data on clinical presentation, suspected cause, and interventions performed...
June 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28638088/chemokine-receptor-cxcr4-regulates-camkii-creb-pathway-in-spinal-neurons-that-underlies-cancer-induced-bone-pain
#3
Xue-Ming Hu, Hui Zhang, Heng Xu, Hai-Long Zhang, Li-Ping Chen, Wen-Qiang Cui, Wei Yang, Wen Shen
We previously demonstrated that the chemokine receptor CXCR4 plays an important role in cancer-induced bone pain by activating spinal neurons and glial cells. However, the specific neuronal mechanism of CXCR4 signaling is not clear. We further report that CXCR4 contributes to the activation of the neuronal CaMKII/CREB pathway in cancer-induced bone pain. We used a tumor cell implantation (TCI) model and observed that CXCR4, p-CaMKII and p-CREB were persistently up-regulated in spinal neurons. CXCR4 also co-expressed with p-CaMKII and p-CREB, and mediated p-CaMKII and p-CREB expression after TCI...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637739/intrathecal-baclofen-therapy-in-paediatrics-a-study-protocol-for-an-australian-multicentre-10-year-prospective-audit
#4
Kirsty Stewart, Gavin Hutana, Megan Kentish
INTRODUCTION: Increasing clinical use of Intrathecal baclofen (ITB) in Australian tertiary paediatric hospitals, along with the need for standardised assessment and reporting of adverse events, saw the formation of the Australian Paediatric ITB Research Group (APIRG). APIRG developed a National ITB Audit tool designed to capture clinical outcomes and adverse events data for all Australian children and adolescents receiving ITB therapy. METHODS AND ANALYSIS: The Australian ITB Audit is a 10 year, longitudinal, prospective, clinical audit collecting all adverse events and assessment data across body functions and structure, participation and activity level domains of the ICF...
June 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28632535/perioperative-surgical-home-evaluation-of-a-new-protocol-focused-on-a-multidisciplinary-approach-to-manage-children-undergoing-posterior-spinal-fusion-operation
#5
Eugene Kim, Brian Lee, Giovanni Cucchiaro
BACKGROUND: The concept of Perioperative Surgical Home has been gaining significant attention in surgical centers. This model is delivering and improving coordinated care in a cost-effective manner to patients undergoing surgical procedures. It starts with the decision for surgical intervention, continues to the intraoperative and postoperative periods, and follows into long-term recovery. Constant re-evaluation of outcomes and modifications of delivery provides a feedback loop for improvement...
June 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28629730/synergistic-antinociceptive-effect-of-a-calcium-channel-blocker-and-a-trpv1-blocker-in-an-acute-pain-model-in-mice
#6
Manuella R Palhares, Juliana F Silva, Marcio Junior S Rezende, Duana C Santos, Cláudio A Silva-Junior, Márcia H Borges, Juliano Ferreira, Marcus V Gomez, Célio J Castro Junior
AIMS: Extensive evidence supports a role for voltage-gated calcium channels (VGCC) and TRPV1 receptors in pain transmission and modulation. We investigated the profile of analgesic interaction between Phα1β toxin (a VGCC blocker) and SB366791 (selective TRPV1 antagonist) in a model of acute pain induced by capsaicin. Changes in body temperature induced by combination regimens were also evaluated. MAIN METHODS: Isobolographic approach with a fixed dose-ratio of combined drugs was used to determine whether antinociceptive interaction of Phα1β and SB366791 are subadditive, additive or synergic...
June 16, 2017: Life Sciences
https://www.readbyqxmd.com/read/28628851/spinal-5-ht4-and-5-ht6-receptors-contribute-to-the-maintenance-of-neuropathic-pain-in-rats
#7
Jorge Baruch Pineda-Farias, Paulino Barragán-Iglesias, Alann Valdivieso-Sánchez, Juan Rodríguez-Silverio, Francisco Javier Flores-Murrieta, Vinicio Granados-Soto, Héctor Isaac Rocha-González
BACKGROUND: Nerve injury promotes release of 5-HT at the spinal cord. Once released, 5-HT may produce antinociceptive or pronociceptive effects depending of the nature of 5-HT receptors. The purpose of this study was to investigate the participation of spinal 5-HT4 and 5-HT6 receptors in the maintenance of neuropathic pain in rats. METHODS: Tactile allodynia was measured using von Frey hairs in male Wistar rats subjected to L5-L6 spinal nerve injury. Selective 5-HT4 (GR-113808, 0...
April 4, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28628492/complete-remission-of-intrathecal-metastases-with-lorlatinib-therapy-in-a-heavily-pretreated-alk-positive-lung-cancer-patient
#8
Maximilian J Hochmair, Sophia Schwab, Helmut Prosch
Patients with lung cancer who show EML4-ALK translocation are routinely treated with ALK tyrosine kinase inhibitors, although in the majority of cases, these patients develop resistance over time. The central nervous system is a common of site of recurrence in this population, which calls for next-generation drugs that can penetrate into the brain and achieve clinically meaningful central nervous system activity. Here, I report the case of a female patient diagnosed with adenocarcinoma of the lung in 2005, at the age of 46 years, who underwent lobectomy and then experienced a series of progression episodes 6 years later...
June 16, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28628078/nociceptor-interleukin-10-receptor-1-is-critical-for-muscle-analgesia-induced-by-repeated-bouts-of-eccentric-exercise-in-the-rat
#9
Pedro Alvarez, Oliver Bogen, Paul G Green, Jon D Levine
Delayed-onset muscle soreness is typically observed after strenuous or unaccustomed eccentric exercise. Soon after recovery, blunted muscle soreness is observed on repeated eccentric exercise, a phenomenon known as repeated bout effect (RBE). Although regular physical activity decreases muscle hyperalgesia, likely because of increased production of the anti-inflammatory cytokine interleukin-10 (IL-10) in the skeletal muscle, whether IL-10 also contributes to the antinociceptive effect of RBE is unknown. Furthermore, whether IL-10 attenuates muscle hyperalgesia by acting on muscle nociceptors remains to be established...
April 26, 2017: Pain
https://www.readbyqxmd.com/read/28627589/effect-of-the-spinal-apelin%C3%A2-apj-system-on-the-pathogenesis-of-chronic-constriction-injury%C3%A2-induced-neuropathic-pain-in-rats
#10
Qingming Xiong, Wanyou He, Hanbing Wang, Jun Zhou, Yajun Zhang, Jian He, Chengxiang Yang, Bin Zhang
Apelin is hypothesized to serve a dual function in pain processing. Spinal administration of apelin induces hyperalgesia, while opioid receptors are implicated in the antinociceptive effects of apelin in acute nociceptive models. However, whether the apelin‑apelin receptor (APJ) system is involved in neuropathic pain remains to be elucidated. The present study aimed to evaluate the impact and mechanism of the spinal apelin‑APJ system in neuropathic pain. Chronic constriction injury (CCI) of the sciatic nerve produced sustained spinal apelin and APJ upregulation, which was associated with mechanical allodynia and heat hyperalgesia development in the hind‑paw plantar surface...
June 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28626868/intrathecal-dexamethasone-vs-meperidine-for-prevention-of-shivering-during-transurethral-prostatectomy-a-randomized-controlled-trial
#11
S M Moeen, A M Moeen
BACKGROUND: Shivering is a common complication after spinal anesthesia. Also, during transurethral prostatectomy a large amount of irrigating fluids is used which may cause hypothermia and shivering. We hypothesized that intrathecal dexamethasone could effectively attenuate post-spinal shivering following transurethral prostatectomy as intrathecal meperidine. METHODS: Ninety male patients, ASA II-III, 50-75 years old were included in this prospective and randomized double-blind study...
June 18, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28626428/molecular-surgery-concept-from-bench-to-bedside-a-focus-on-trpv1-pain-sensing-neurons
#12
REVIEW
László Pecze, Béla Viskolcz, Zoltán Oláh
"Molecular neurosurgery" is emerging as a new medical concept, and is the combination of two partners: (i) a molecular neurosurgery agent, and (ii) the cognate receptor whose activation results in the selective elimination of a specific subset of neurons in which this receptor is endogenously expressed. In general, a molecular surgery agent is a selective and potent ligand, and the target is a specific cell type whose elimination is desired through the molecular surgery procedure. These target cells have the highest innate sensitivity to the molecular surgery agent usually due to the highest receptor density being in their plasma membrane...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28623098/acquired-inhibition-of-microrna-124-protects-against-spinal-cord-ischemia-reperfusion-injury-partially-through-a-mitophagy-dependent-pathway
#13
Kun Liu, Lihui Yan, Xiaojing Jiang, Yang Yu, Hongbo Liu, Tianxiang Gu, Enyi Shi
OBJECTIVE: Mitophagy results in selective clearance of damaged mitochondria. We investigated whether mitophagy was involved in the neuroprotection by inhibiting microRNA (miRNA)-124 on ischemic spinal cords. METHODS: Inhibition of miRNA-124 was conducted by intrathecal injection of lentivirus vectors containing antagomiR-124. Spinal cord ischemia was induced in rats by crossclamping the descending aorta just distal to the left subclavian artery for 14 minutes. Hind-limb motor function was assessed with the motor deficit index (MDI)...
May 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28623089/optimal-intrathecal-hyperbaric-bupivacaine-dose-with-opioids-for-cesarean-delivery-a-prospective-double-blinded-randomized-trial
#14
Eiko Onishi, Mamoru Murakami, Keiji Hashimoto, Miho Kaneko
BACKGROUND: Single-shot spinal anesthesia is commonly used for cesarean delivery. Achieving adequate anesthesia throughout surgery needs to be balanced with associated complications. We investigated the optimal dose of intrathecal hyperbaric bupivacaine, co-administered with opioids, for anesthesia for cesarean delivery. METHODS: This prospective, randomized, double-blinded, dose-ranging trial included parturients scheduled to undergo cesarean delivery under spinal anesthesia...
April 13, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28622969/probability-of-undiagnosed-obstructive-sleep-apnea-does-not-correlate-with-adverse-pulmonary-events-nor-length-of-stay-in-hip-and-knee-arthroplasty-using-intrathecal-opioid
#15
Matthew J Thompson, Bryce N Clinger, Robert M Simonds, Camille J Hochheimer, Laura A Lahaye, Gregory J Golladay
BACKGROUND: Recent emphasis on bundled payments and outcomes tracking has increased the focus on preoperative optimization in patients undergoing elective lower extremity arthroplasty. Since patients with obstructive sleep apnea (OSA) have an increased risk of adverse perioperative pulmonary events, screening for undiagnosed OSA is sometimes included as part of preoperative risk assessment. However, there are limited data regarding quantification of OSA risk in lower extremity arthroplasty patients, and little is known about the utility of quantitative OSA screening and the risk of pulmonary complications in hip and knee arthroplasty patients who receive intrathecal morphine anesthetic...
April 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28622533/intrathecal-igm-index-correlates-with-a-severe-disease-course-in-multiple-sclerosis-clinical-and-mri-results
#16
Serkan Ozakbas, Bilge Piri Cinar, Pinar Özcelik, Hatice Baser, Gorkem Kosehasanoğullari
OBJECTIVES: Intrathecally synthesized IgM can be seen not only in the cerebrospinal fluid (CSF) in infectious and inflammatory diseases of the central nervous system, but also in that of patients with multiple sclerosis (MS). Intrathecal IgM synthesis in MS seems to be correlated with an unfavorable disease course. In one cross-sectional study, intrathecal synthesis of IgM (IgM index) was found to be correlated with cranial magnetic resonance imaging (MRI) parameters. The purpose of this study was to determine the possible relationship between the IgM index and MRI and clinical parameters...
June 1, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28620571/leptomeningeal-carcinomatosis-in-recurrent-non-small-cell-lung-cancer-a-case-report-and-review-of-current-treatment-modalities
#17
Saqib Abbasi, Elias Moussaly, Jean P Atallah
Leptomeningeal carcinomatosis (LC) is an uncommon sequelae of non-small cell lung cancer. The treatment modalities for LC have historically been limited with an overall poor prognosis. This case report outlines a 76-year-old female who presented with recurrence of non-small cell lung cancer as LC. LC is difficult to treat, and options include radiation, chemotherapy (systemic and intrathecal), as well as targeted therapies. This case outlines a unique approach and reviews the current literature on the effectiveness of these options in non-small cell lung cancer...
May 12, 2017: Curēus
https://www.readbyqxmd.com/read/28618070/morin-suppresses-astrocyte-activation-and-regulates-cytokine-release-in-bone-cancer-pain-rat-models
#18
Wei Jiang, Ying Wang, Wei Sun, Mengyuan Zhang
As inflammatory and immune responses are involved in pathophysiology of debilitating neuropathic pain, reagents that can modulate these two responses may have therapeutic potential. Morin, derived from the moraceae family of plants, benefits inflammation-related diseases, but its antinociceptive effects on cancer pain remain elusive. In the present study, we investigated antinociceptive effects of morin on bone cancer pain using a rat model, where rats were subject to implantation of Walker 256 mammary gland carcinoma cells into the tibia...
June 15, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28617705/liver-x-receptor-%C3%AE-is-involved-in-counteracting-mechanical-allodynia-by-inhibiting-neuroinflammation-in-the-spinal-dorsal-horn
#19
Jing Xu, Yi-Wei Feng, Ling Liu, Wei Wang, Xiong-Xiong Zhong, Xu-Hong Wei, Xian-Guo Liu
BACKGROUND: Liver X receptors, including α and β isoforms, are ligand-activated transcription factors. Whether liver X receptor α plays a role in neuropathic pain is unknown. METHODS: A spared nerve injury model was established in adult male rats and mice. Von Frey tests were performed to evaluate the neuropathic pain behavior; Western blot and immunohistochemistry were performed to understand the underlying mechanisms. RESULTS: Intrathecal injection of a specific liver X receptor agonist T0901317 or GW3965 could either prevent the development of mechanical allodynia or alleviate the established mechanical allodynia, both in rats and wild-type mice...
June 15, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28616823/population-pharmacokinetics-of-combined-intravenous-and-local-intrathecal-administration-of-meropenem-in-aneurysm-patients-with-suspected-intracranial-infections-after-craniotomy
#20
Xingang Li, Shusen Sun, Qiang Wang, Zhigang Zhao
BACKGROUND AND OBJECTIVE: For patients with intracranial infection, local intrathecal administration of meropenem may be a useful method to obtain a sufficient drug concentration in the cerebral spinal fluid (CSF). However, a large inter-individual variability may pose treatment efficacy at risk. This study aimed to identify factors affecting drug concentration in the CSF using population pharmacokinetics method. METHODS: After craniotomy, aneurysm patients with an indwelling lumbar cistern drainage tube who received a combined intravenous and intrathecal administration of meropenem for the treatment of suspected intracranial infection were enrolled...
June 14, 2017: European Journal of Drug Metabolism and Pharmacokinetics
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