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Neurogenic inflammation

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https://www.readbyqxmd.com/read/29141824/inhibition-of-neurogenesis-in-a-case-of-marburg-variant-multiple-sclerosis
#1
Celia Oreja-Guevara, Ulises Gómez-Pinedo, Julia García-López, Rafael Sánchez-Sánchez, Roberto Valverde-Moyano, Alberto Rabano-Gutierrez, Jordi A Matías-Guiu, Ines González-Suárez, Jorge Matías-Guiu
INTRODUCTION: Neural stem cells (NSC) are located essentially in the subventricular zone (SVZ), subgranular zone (SGZ), and along the central canal of the spinal cord. These cells can proliferate in vitro and differentiate into neurons, oligodendrocytes, and astroglia, thus contributing to repair in multiple sclerosis (MS). We conducted a pathological study to analyse neurogenic response in a patient with Marburg variant MS. METHODS: We present the case of a 27-year-old immunocompetent patient with Marburg variant MS, a fulminant form of the disease...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29134730/role-of-central-versus-peripheral-opioid-system-in-antinociceptive-and-anti-inflammatory-effect-of-botulinum-toxin-type-a-in-trigeminal-region
#2
V Drinovac Vlah, B Filipović, L Bach-Rojecky, Z Lacković
BACKGROUND: Although botulinum toxin type A (BT-A) is approved for chronic migraine treatment, its site and mechanism of action are still elusive. Recently our group discovered that suppression of CGRP release from dural nerve endings might account for antimigraine action of pericranially injected BT-A. We demonstrated that central antinociceptive effect of BT-A in sciatic region involves endogenous opioid system as well. Here we investigated possible interaction of BT-A with endogenous opioid system within the trigeminal region...
November 13, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29132068/secretoneurin-and-pe-11-immunoreactivity-in-the-human-dental-pulp
#3
René Steiner, Reiner Fischer-Colbrie, Athanasia Bletsa, Johannes Laimer, Josef Troger
OBJECTIVE: To explore whether there are differences in the concentration of the secretogranin II-derived peptide secretoneurin and the chromogranin B-derived peptide PE-11 between the healthy and inflamed human dental pulps. Furthermore, colocalization studies with calcitonin gene-related peptide were performed to confirm the sensory origin of the peptidergic nerves in the dental pulp. DESIGN: The concentrations of secretoneurin and PE-11 were determined by highly sensitive radioimmunoassays in extracts of dental pulps, the molecular form of secretoneurin immunoreactivities by RP-HPLC with subsequent radioimmunoassay and colocalization studies with calcitonin gene-related peptide were performed by double immunofluorescence...
November 9, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29123119/acupuncture-points-can-be-identified-as-cutaneous-neurogenic-inflammatory-spots
#4
Do-Hee Kim, Yeonhee Ryu, Dae Hyun Hahm, Boo Yong Sohn, Insop Shim, O Sang Kwon, Suchan Chang, Young Seob Gwak, Min Sun Kim, Jae Hyo Kim, Bong Hyo Lee, Eun Young Jang, Rongjie Zhao, Jin Mo Chung, Chae Ha Yang, Hee Young Kim
Acupuncture, a traditional medical procedure practised for over 2000 years in Asia, stimulates specific but poorly defined sites called acupoints. To date, no unique anatomical acupoint structures have been found. However, noxious sensory signals from visceral organs produce hypersensitive spots on the skin (neurogenic spots), caused by cutaneous neurogenic inflammation, in the dermatome that overlaps with visceral afferent innervations. Here, we show that an acupoint is one form of neurogenic inflammation on the skin...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122628/a-novel-curcumin-derivative-for-the-treatment-of-diabetic-neuropathy
#5
Daniel J Daugherty, Alexandra Marquez, Nigel A Calcutt, David Schubert
Neuropathy is a common complication of long-term diabetes. Proposed mechanisms of neuronal damage caused by diabetes that are downstream of hyperglycemia and/or loss of insulin signaling include ischemic hypoxia, inflammation and loss of neurotrophic support. The curcumin derivative J147 is a potent neurogenic and neuroprotective drug candidate initially developed for the treatment of neurodegenerative conditions associated with aging that impacts many pathways implicated in the pathogenesis of diabetic neuropathy...
November 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29116598/cgrp-monoclonal-antibodies-for-migraine-rationale-and-progress
#6
Hsiangkuo Yuan, Clinton G Lauritsen, Eric A Kaiser, Stephen D Silberstein
Calcitonin gene-related peptide (CGRP), a neuropeptide abundant in the trigeminal system and widely expressed in both the peripheral and central nervous systems, has recently emerged as a promising target for migraine management. While known as a potent arterial vasodilator, the role of CGRP in migraine is likely mediated by modulating nociception and sustaining neurogenic inflammation that leads to further peripheral and central pain sensitization. Functional blockade of CGRP, which involves either CGRP receptor antagonists or monoclonal antibodies (mAbs) to CGRP or its receptor, has recently shown clinical efficacy in migraine management...
November 7, 2017: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/29094347/generalized-pain-sensitization-and-endogenous-oxytocin-in-individuals-with-symptoms-of-migraine-a-cross-sectional-study
#7
Dokyoung S You, Rachel Haney, Sergiu Albu, Mary W Meagher
OBJECTIVE: The current study examined pain and neurogenic inflammation responses to topical capsaicin during the interictal period (between headache) and their relationship with plasma oxytocin in individuals with migraine. BACKGROUND: Individuals with migraine can experience generalized (extracephalic) hyperalgesia, which can persist even between headache attacks. Elevated levels of plasma and cerebrospinal fluid oxytocin have been observed during migraine attacks, oxytocin levels being positively associated with the intensity of migraine symptoms...
November 2, 2017: Headache
https://www.readbyqxmd.com/read/29093699/estrogen-dependent-changes-in-dura-mater-microvasculature-add-new-insights-to-the-pathogenesis-of-headache
#8
REVIEW
Olga V Glinskii, Virginia H Huxley, Vladislav V Glinsky
The pathogenesis of headaches is a matter of ongoing discussion of two major theories describing it either as a vascular phenomenon resulting from vasodilation or primarily as a neurogenic process accompanied by secondary vasodilation associated with sterile neurogenic inflammation. While summarizing current views on neurogenic and vascular origins of headache, this mini review adds new insights regarding how smooth muscle-free microvascular networks, discovered within dura mater connective tissue stroma (previously thought to be "avascular"), may become a site of initial insult generating the background for the development of headache...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29093266/macrophage-derived-oncostatin-m-contributes-to-human-and-mouse-neurogenic-heterotopic-ossifications
#9
Frédéric Torossian, Bernadette Guerton, Adrienne Anginot, Kylie A Alexander, Christophe Desterke, Sabrina Soave, Hsu-Wen Tseng, Nassim Arouche, Laetitia Boutin, Irina Kulina, Marjorie Salga, Beulah Jose, Allison R Pettit, Denis Clay, Nathalie Rochet, Erica Vlachos, Guillaume Genet, Charlotte Debaud, Philippe Denormandie, François Genet, Natalie A Sims, Sébastien Banzet, Jean-Pierre Levesque, Jean-Jacques Lataillade, Marie-Caroline Le Bousse-Kerdilès
Neurogenic heterotopic ossification (NHO) is the formation of ectopic bone generally in muscles surrounding joints following spinal cord or brain injury. We investigated the mechanisms of NHO formation in 64 patients and a mouse model of spinal cord injury-induced NHO. We show that marrow from human NHOs contains hematopoietic stem cell (HSC) niches, in which mesenchymal stromal cells (MSCs) and endothelial cells provide an environment supporting HSC maintenance, proliferation, and differentiation. The transcriptomic signature of MSCs from NHOs shows a neuronal imprinting associated with a molecular network required for HSC support...
November 2, 2017: JCI Insight
https://www.readbyqxmd.com/read/29089212/up-regulation-of-%C3%AE-1-adrenoceptors-in-burn-and-keloid-scars
#10
Peter D Drummond, Linda F Dawson, Fiona M Wood, Mark W Fear
Stimulation of α1-adrenoceptors evokes inflammatory cytokine production, boosts neurogenic inflammation and pain, and influences cellular migration and proliferation. Hence, these receptors may play a role both in normal and abnormal wound healing. To investigate this, the distribution of α1-adrenoceptors in skin biopsies of burn scars (N=17), keloid scars (N=12) and unscarred skin (N=17) was assessed using immunohistochemistry. Staining intensity was greater on vascular smooth muscle in burn scars than in unscarred tissue, consistent with heightened expression of α1-adrenoceptors...
October 28, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29056150/substance-p-and-the-neurokinin-1-receptor-the-new-crf
#11
Jesse R Schank, Markus Heilig
Substance P (SP) is an 11-amino acid neuropeptide of the tachykinin family that preferentially activates the neurokinin-1 receptor (NK1R). First isolated 85 years ago and sequenced 40 years later, SP has been extensively studied. Early studies identified a role for SP and the NK1R in contraction of intestinal smooth muscle, central pain processing, and neurogenic inflammation. An FDA-approved NK1R antagonist, aprepitant, is used clinically for the treatment of chemotherapy-induced nausea, as the NK1R influences the activity of the brain stem emesis centers...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29038201/kinin-b1-receptor-promotes-neurogenic-hypertension-through-activation-of-centrally-mediated-mechanisms
#12
Srinivas Sriramula, Eric Lazartigues
Hypertension is associated with increased activity of the kallikrein-kinin system. Kinin B1 receptor (B1R) activation leads to vasoconstriction and inflammation. Despite evidence supporting a role for the B1R in blood pressure regulation, the mechanisms by which B1R could alter autonomic function and participate in the pathogenesis of hypertension remain unidentified. We sought to explore whether B1R-mediated inflammation contributes to hypertension and investigate the molecular mechanisms involved. In this study, we tested the hypothesis that activation of B1R in the brain is involved in the pathogenesis of hypertension, using the deoxycorticosterone acetate-salt model of neurogenic hypertension in wild-type and B1R knockout mice...
December 2017: Hypertension
https://www.readbyqxmd.com/read/29034461/the-migraine-attack-as-a-homeostatic-neuroprotective-response-to-brain-oxidative-stress-preliminary-evidence-for-a-theory
#13
Jonathan M Borkum
BACKGROUND: Previous research has suggested that migraineurs show higher levels of oxidative stress (lipid peroxides) between migraine attacks and that migraine triggers may further increase brain oxidative stress. Oxidative stress is transduced into a neural signal by the TRPA1 ion channel on meningeal pain receptors, eliciting neurogenic inflammation, a key event in migraine. Thus, migraines may be a response to brain oxidative stress. RESULTS: In this article, a number of migraine components are considered: cortical spreading depression, platelet activation, plasma protein extravasation, endothelial nitric oxide synthesis, and the release of serotonin, substance P, calcitonin gene-related peptide, and brain-derived neurotrophic factor...
October 16, 2017: Headache
https://www.readbyqxmd.com/read/28986540/reactive-metabolites-of-acetaminophen-activate-and-sensitize-the-capsaicin-receptor-trpv1
#14
Mirjam J Eberhardt, Florian Schillers, Esther M Eberhardt, Linus Risser, Jeanne de la Roche, Christine Herzog, Frank Echtermeyer, Andreas Leffler
The irritant receptor TRPA1 was suggested to mediate analgesic, antipyretic but also pro-inflammatory effects of the non-opioid analgesic acetaminophen, presumably due to channel activation by the reactive metabolites parabenzoquinone (pBQ) and N-acetyl-parabenzoquinonimine (NAPQI). Here we explored the effects of these metabolites on the capsaicin receptor TRPV1, another redox-sensitive ion channel expressed in sensory neurons. Both pBQ and NAPQI, but not acetaminophen irreversibly activated and sensitized recombinant human and rodent TRPV1 channels expressed in HEK 293 cells...
October 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28982032/anti-inflammatory-effect-of-an-adhesive-resin-containing-indomethacin-loaded-nanocapsules
#15
Bruna Genari, Maria Beatriz Cardoso Ferreira, Liciane Fernandes Medeiros, Joice Soares de Freitas, Stefania Giotti Cioato, Iraci Lucena da Silva Torres, Adriana Raffin Pohlmann, Silvia Stanisçuaski Guterres, Vicente Castelo Branco Leitune, Fabri Cio Mezzomo Collares, Susana Maria Werner Samuel
OBJECTIVE: To analyze the anti-inflammatory and analgesic effects of an adhesive resin containing indomethacin-loaded nanocapsules in rat model. DESIGN: Adhesive resin disks with or without indomethacin-loaded nanocapsules were subcutaneously implanted into right hind paw of rats. A week after surgical procedure, 2% formalin solution was intradermally injected into plantar surface of paw. Nociceptive and inflammatory responses were evaluated by formalin test. Paw edema by pletismometer and mechanical hyperalgesia by von Frey test were performed on day 2, day 4, day 6, day 8, day 10 and day 12 after surgery...
September 25, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28977676/pacap-receptors-in-the-trigeminovascular-system-implications-for-migraine
#16
REVIEW
Tahlia Sundrum, Christopher S Walker
The neuropeptide pituitary adenylate cyclase-activating polypeptide (PACAP) has been implicated in a wide range of functions including vasodilation, neuroprotection, nociception and neurogenic inflammation. PACAP activates three distinct receptors, the PAC1 receptor, which responds to PACAP and the VPAC1 and VPAC2 receptors, which respond to both PACAP and vasoactive intestinal polypeptide (VIP). The trigeminovascular system plays a key role in migraine and contains the trigeminal nerve, which is the major conduit of craniofacial pain...
October 4, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28963396/a-novel-microglial-subset-plays-a-key-role-in-myelinogenesis-in-developing-brain
#17
Agnieszka Wlodarczyk, Inge R Holtman, Martin Krueger, Nir Yogev, Julia Bruttger, Reza Khorooshi, Anouk Benmamar-Badel, Jelkje J de Boer-Bergsma, Nellie A Martin, Khalad Karram, Isabella Kramer, Erik Wgm Boddeke, Ari Waisman, Bart Jl Eggen, Trevor Owens
Microglia are resident macrophages of the central nervous system that contribute to homeostasis and neuroinflammation. Although known to play an important role in brain development, their exact function has not been fully described. Here, we show that in contrast to healthy adult and inflammation-activated cells, neonatal microglia show a unique myelinogenic and neurogenic phenotype. A CD11c(+) microglial subset that predominates in primary myelinating areas of the developing brain expresses genes for neuronal and glial survival, migration, and differentiation...
September 28, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28937249/vagotomy-decreases-the-neuronal-activities-of-medulla-oblongata-and-alleviates-neurogenic-inflammation-of-airways-induced-by-repeated-intra-esophageal-instillation-of-hcl-in-guinea-pigs
#18
Z Chen, H Chen, F Chen, D Gu, L Sun, W Zhang, L Fan, Y Lin, R Dong, K Lai
Neuronal activity in the medulla oblongata and neurogenic inflammation of airways were investigated in a guinea pig model induced by repeated intra-esophageal instillation of hydrochloric acid (HCl) after vagotomy. Unilateral vagotomy was performed in the vagotomy group, while a sham-operation was performed in the sham group. Operation was not conducted in sham control group. Airway inflammation was observed with hematoxylin and eosin (HE) staining. C-fos protein was measured by immunohistochemistry (IHC) and Western blot (WB)...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28933133/the-effect-of-nerve-mobilization-exercise-in-patients-with-rheumatoid-arthritis-a-pilot-study
#19
C-N Lo, G Xia, B P Leung
Rheumatoid arthritis (RA) is an autoimmune disorder characterized by chronic inflammation of the joints. The neurogenic inflammatory mechanism plays an important role in the inflammatory process of RA, and pathological changes in neural tissues in RA have also been noted. We aim to investigate treatment of the nervous system to relieve joint pain and inflammation in RA. Nerve mobilization, a nervous system-specific therapeutic exercise, was applied on RA patients to determine the effect of nerve mobilization on joint inflammation...
September 21, 2017: Reumatismo
https://www.readbyqxmd.com/read/28931832/mediating-role-of-trpv1-ion-channels-in-the-co-exposure-to-pm2-5-and-formaldehyde-of-balb-c-mice-asthma-model
#20
Jing Song, Jun Kang, Bencheng Lin, Jinquan Li, Yuqing Zhu, Junting Du, Xu Yang, Zhuge Xi, Rui Li
Asthma is a complex pulmonary inflammatory disease that can be promoted by air pollutants such as PM2.5 and formaldehyde (FA). However, existent experimental evidence principally focuses on the negative influence of a single air pollutant, neglecting the possible synergistic effect in biological responses to mixture of these pollutants, a more common situation in our daily life. In this study, allergic Balb/c mice were exposed to a mixture of PM2.5 and FA, and their toxicological effects and mechanisms were explored...
September 20, 2017: Scientific Reports
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