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https://www.readbyqxmd.com/read/28937534/the-spread-of-ultrasound-guided-injectate-from-the-adductor-canal-to-the-genicular-branch-of-the-posterior-obturator-nerve-and-the-popliteal-plexus-a-cadaveric-study
#1
Charlotte Runge, Bernhard Moriggl, Jens Børglum, Thomas Fichtner Bendtsen
BACKGROUND AND OBJECTIVES: The popliteal nerve plexus contributes to afferent knee-pain conduction. It is mainly formed by genicular branches from the posterior obturator and the tibial nerves, innervating the intra-articular and posterior knee region. A subinguinal obturator nerve block alleviates pain after total knee arthroplasty. Reduced hip adductor motor function could be avoided by a posterior obturator nerve block inside the popliteal fossa. The aim of this study was to evaluate the spread of dye after a distal adductor canal (AC) injection to the popliteal fossa and coloring of the popliteal plexus and the genicular branch of the posterior obturator nerve by dissection...
September 20, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28936748/quantity-and-quality-of-sweating-in-atopic-dermatitis
#2
Marlies Wruhs, Andreas Gleiß, Andreas Steiner, Paul Sator
Sweat may be an important factor in triggering an exacerbation of atopic dermatitis. It was the aim of this study to evaluate a possible correlation between atopic patients and hyperhidrosis-measured by a questionnaire-and to find out whether there are qualitative differences in sweat response-measured by sudomotor activity (sympathetic skin response test, SSR). Included were 100 study participants, of whom 50 were patients with atopic dermatitis and 50 were serving as control group. The frequency of hyperhidrosis is higher in atopic patients than in the control group (30 vs...
September 21, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28935940/layer-and-cell-type-selective-co-transmission-by-a-basal-forebrain-cholinergic-projection-to-the-olfactory-bulb
#3
Daniel T Case, Shawn D Burton, Jeremy Y Gedeon, Sean-Paul G Williams, Nathaniel N Urban, Rebecca P Seal
Cholinergic neurons in the basal forebrain project heavily to the main olfactory bulb, the first processing station in the olfactory pathway. The projections innervate multiple layers of the main olfactory bulb and strongly influence odor discrimination, detection, and learning. The precise underlying circuitry of this cholinergic input to the main olfactory bulb remains unclear, however. Here, we identify a specific basal forebrain cholinergic projection that innervates select neurons concentrated in the internal plexiform layer of the main olfactory bulb...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28934683/histological-transformations-of-the-dental-pulp-as-possible-indicator-of-post-mortem-interval-a-pilot-study
#4
Patricio A Carrasco, Claudia I Brizuela, Ismael A Rodriguez, Samuel Muñoz, Marianela E Godoy, Carolina Inostroza
BACKGROUND: The correct estimation of the post mortem interval (PMI) can be crucial on the success of a forensic investigation. Diverse methods have been used to estimate PMI, considering physical changes that occur after death, such as mortis algor, livor mortis, among others. Degradation after death of dental pulp is a complex process that has not yet been studied thoroughly. It has been described that pulp RNA degradation could be an indicator of PMI, however this study is limited to 6 days...
September 11, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28933047/the-right-touch-stroking-of-ct-innervated-skin-promotes-vocal-emotion-processing
#5
Annett Schirmer, Thomas C Gunter
Research has revealed a special mechanoreceptor, called C-tactile (CT) afferent, that is situated in hairy skin and that seems relevant for the processing of social touch. We pursued a possible role of this receptor in the perception of other social signals such as a person's voice. Participants completed three sessions in which they heard surprised and neutral vocal and nonvocal sounds and detected rare sound repetitions. In a given session, participants received no touch or soft brushstrokes to the arm (CT innervated) or palm (CT free)...
September 20, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28932225/expression-and-function-of-the-cholinergic-system-in-immune-cells
#6
REVIEW
Takeshi Fujii, Masato Mashimo, Yasuhiro Moriwaki, Hidemi Misawa, Shiro Ono, Kazuhide Horiguchi, Koichiro Kawashima
T and B cells express most cholinergic system components-e.g., acetylcholine (ACh), choline acetyltransferase (ChAT), acetylcholinesterase, and both muscarinic and nicotinic ACh receptors (mAChRs and nAChRs, respectively). Using ChAT(BAC)-eGFP transgenic mice, ChAT expression has been confirmed in T and B cells, dendritic cells, and macrophages. Moreover, T cell activation via T-cell receptor/CD3-mediated pathways upregulates ChAT mRNA expression and ACh synthesis, suggesting that this lymphocytic cholinergic system contributes to the regulation of immune function...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28931760/inflammation-oxidative-stress-and-glial-cell-activation-characterize-stellate-ganglia-from-humans-with-electrical-storm
#7
Olujimi A Ajijola, Donald B Hoover, Thomas M Simerly, T Christopher Brown, Jane Yanagawa, Reshma M Biniwale, Jay M Lee, Ali Sadeghi, Negar Khanlou, Jeffrey L Ardell, Kalyanam Shivkumar
BACKGROUND: Neuronal remodeling in human heart disease is not well understood. METHODS: Stellate ganglia from patients with cardiomyopathy (CMY) and refractory ventricular arrhythmias undergoing cardiac sympathetic denervation (n = 8), and from organ donors with normal hearts (n = 8) collected at the time of organ procurement were compared. Clinical data on all subjects were reviewed. Electron microscopy (EM), histologic, and immunohistochemical assessments of neurotransmitter profiles, glial activation and distribution, and lipofuscin deposition, a marker of oxidative stress, were quantified...
September 21, 2017: JCI Insight
https://www.readbyqxmd.com/read/28931663/targeting-fatty-acid-amide-hydrolase-as-a-therapeutic-strategy-for-antitussive-therapy
#8
Michael A Wortley, John J Adcock, Eric D Dubuis, Sarah A Maher, Sara J Bonvini, Isabelle Delescluse, Ross Kinloch, Gordon McMurray, Christelle Perros-Huguet, Marianthi Papakosta, Mark A Birrell, Maria G Belvisi
Cough is the most common reason to visit a primary care physician, yet it remains an unmet medical need. Fatty acid amide hydrolase (FAAH) is an enzyme that breaks down endocannabinoids, and inhibition of FAAH produces analgesic and anti-inflammatory effects. Cannabinoids inhibit vagal sensory nerve activation and the cough reflex, so it was hypothesised that FAAH inhibition would produce antitussive activity via elevation of endocannabinoids.Primary vagal ganglia neurons, tissue bioassay, in vivo electrophysiology and a conscious guinea pig cough model were utilised to investigate a role for fatty acid amides in modulating sensory nerve activation in vagal afferents...
September 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28931572/drosophila-neprilysin-1-rescues-memory-deficits-caused-by-amyloid-%C3%AE-peptide
#9
Oriane Turrel, Valérie Goguel, Thomas Preat
Neprilysins are type-II metalloproteinases known to degrade and inactivate a number of small peptides, in particular the mammalian amyloid-β peptide (Aβ). In Drosophila, several neprilysins expressed in the brain are required for middle-term (MTM) and long-term memory (LTM) in the dorsal paired medial (DPM) neurons, a pair of large neurons that broadly innervate the mushroom bodies (MB), the center of olfactory memory. These data indicate that one or several peptides need to be degraded for MTM and LTM. We have previously shown that the fly amyloid precursor protein (APPL) is required for memory in the MB...
September 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28931463/severe-streptomycin-ototoxicity-in-the-mouse-utricle-leads-to-a-flat-epithelium-but-the-peripheral-neural-degeneration-is-delayed
#10
Guo-Peng Wang, Ishani Basu, Lisa A Beyer, Hiu Tung Wong, Donald L Swiderski, Shu-Sheng Gong, Yehoash Raphael
The damaged vestibular sensory epithelium of mammals has a limited capacity for spontaneous hair cell regeneration, which largely depends on the transdifferentiation of surviving supporting cells. Little is known about the response of vestibular supporting cells to a severe insult. In the present study, we evaluated the impact of a severe ototoxic insult on the histology of utricular supporting cells and the changes in innervation that ensued. We infused a high dose of streptomycin into the mouse posterior semicircular canal to induce a severe lesion in the utricle...
September 11, 2017: Hearing Research
https://www.readbyqxmd.com/read/28927720/neuronal-defects-an-etiological-factor-in-congenital-pelviureteric-junction-obstruction
#11
Guo Yuan How, Kenneth Tou En Chang, Anette Sundfor Jacobsen, Te-Lu Yap, Caroline Choo Phaik Ong, Yee Low, John Carson Allen, Chik Hong Kuick, Malcolm Zhun Leong Lim, Narasimhan Kannan Laksmi
INTRODUCTION: Congenital pelviureteric junction obstruction (PUJO) is one of the most frequent causes of neonatal hydronephrosis. Obstruction at the PUJ has potential severe adverse outcomes, such as renal damage. While pyeloplasty has been established as the definitive treatment, the exact pathophysiology of congenital PUJO remains unknown. Recent research has proposed neuronal innervation defects as an etiological factor in congenital PUJO. We aim to study the expression of various neuronal markers in PUJO specimens compared with controls, and evaluate whether severity of renal disease or dysfunction pre-operatively is related to expression of neuronal markers in resected PUJO specimens...
September 1, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28926640/aire-deficient-mice-provide-a-model-of-corneal-and-lacrimal-gland-neuropathy-in-sj%C3%A3-gren-s-syndrome
#12
Feeling Y Chen, Albert Lee, Shaokui Ge, Sara Nathan, Sarah M Knox, Nancy A McNamara
Sjögren's syndrome (SS) is a chronic, autoimmune exocrinopathy that leads to severe dryness of the mouth and eyes. Exocrine function is highly regulated by neuronal mechanisms but little is known about the link between chronic inflammation, innervation and altered exocrine function in the diseased eyes and exocrine glands of SS patients. To gain a better understanding of neuronal regulation in the immunopathogenesis of autoimmune exocrinopathy, we profiled a mouse model of spontaneous, autoimmune exocrinopathy that possess key characteristics of peripheral neuropathy experienced by SS patients...
2017: PloS One
https://www.readbyqxmd.com/read/28925503/quantitative-analysis-of-mouse-dural-afferent-neurons-expressing-trpm8-vglut3-and-nf200
#13
Lynn Ren, Michelle Jaehee Chang, Zhiyu Zhang, Ajay Dhaka, Zhaohua Guo, Yu-Qing Cao
OBJECTIVE: To quantify the abundance of dural afferent neurons expressing transient receptor potential channel melastatin 8 (TRPM8), vesicular glutamate transporter 3 (VGLUT3), and neurofilament 200 (NF200) in adult mice. BACKGROUND: With the increasing use of mice as a model system to study headache mechanisms, it is important to understand the composition of dural afferent neurons in mice. In a previous study, we have measured the abundance of mouse dural afferent neurons that express neuropeptide calcitonin gene-related peptide as well as two TRP channels TRPV1 and TRPA1, respectively...
September 19, 2017: Headache
https://www.readbyqxmd.com/read/28924864/a-nociceptive-role-for-integrin-signaling-in-pain-after-mechanical-injury-to-the-spinal-facet-capsular-ligament
#14
Sijia Zhang, Ethan Zhao, Beth A Winkelstein
Integrins modulate chemically-induced nociception in a variety of inflammatory and neuropathic pain models. Yet, the role of integrins in mechanically-induced pain remains undefined, despite its well-known involvement in cell adhesion and mechanotransduction. Excessive spinal facet capsular ligament stretch is a common injury that induces morphological and functional changes in its innervating afferent neurons and can lead to pain. However, the local mechanisms underlying the translation from tissue deformation to pain signaling are unclear, impeding effective treatment...
September 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28924738/phase-dyssynchrony-and-123-i-meta-iodobenzylguanidine-innervation-imaging-towards-standardization
#15
EDITORIAL
Kenichi Nakajima, Koichi Okuda, Hein J Verberne
No abstract text is available yet for this article.
September 18, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28922171/pancreatic-polypeptide-in-parkinson-s-disease-a-potential-marker-of-parasympathetic-denervation
#16
Karoline Knudsen, Bolette Hartmann, Tatyana D Fedorova, Karen Østergaard, Klaus Krogh, Niels Møller, Jens J Holst, Per Borghammer
BACKGROUND AND OBJECTIVES: Parkinson's disease (PD) patients experience several non-motor symptoms from the gastrointestinal tract that may partly be caused by parasympathetic deficiency. The pancreas is densely innervated by the vagus nerve, which mediates early meal-induced secretion of pancreatic polypeptide (PP). Early secretion after sham feeding has been validated as a marker of vagal integrity. Thus, the aim was to evaluate the ratio of increased PP plasma levels after sham feeding in PD and correlate findings with gastrointestinal transit time (GITT)...
September 11, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28921744/cholinergic-basal-forebrain-structures-are-not-essential-for-mediation-of-the-arousing-action-of-glutamate
#17
Zoltán Lelkes, Shamsiiat Abdurakhmanova, Tarja Porkka-Heiskanen
The cholinergic basal forebrain contributes to cortical activation and receives rich innervations from the ascending activating system. It is involved in the mediation of the arousing actions of noradrenaline and histamine. Glutamatergic stimulation in the basal forebrain results in cortical acetylcholine release and suppression of sleep. However, it is not known to what extent the cholinergic versus non-cholinergic basal forebrain projection neurones contribute to the arousing action of glutamate. To clarify this question, we administered N-methyl-D-aspartate (NMDA), a glutamate agonist, into the basal forebrain in intact rats and after destruction of the cholinergic cells in the basal forebrain with 192 immunoglobulin (Ig)G-saporin...
September 18, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28921675/altered-cav1-2-function-in-the-timothy-syndrome-mouse-model-produces-ascending-serotonergic-abnormalities
#18
Daniel G Ehlinger, Kathryn G Commons
Polymorphism in the gene CACNA1C, encoding the pore-forming subunit of Cav1.2 L-type calcium channels, has one of the strongest genetic linkages to schizophrenia, bipolar disorder, and major depressive disorder: psychopathologies in which serotonin signaling has been implicated. Additionally, a gain-of-function mutation in CACNA1C is responsible for the neurodevelopmental disorder Timothy Syndrome that presents with prominent behavioral features on the autism spectrum. Given an emerging role for serotonin in the etiology of autism spectrum disorders, we investigate the relationship between Cav1...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28920935/spinal-cord-injury-induced-immunodeficiency-is-mediated-by-a-sympathetic-neuroendocrine-adrenal-reflex
#19
Harald Prüss, Andrea Tedeschi, Aude Thiriot, Lydia Lynch, Scott M Loughhead, Susanne Stutte, Irina B Mazo, Marcel A Kopp, Benedikt Brommer, Christian Blex, Laura-Christin Geurtz, Thomas Liebscher, Andreas Niedeggen, Ulrich Dirnagl, Frank Bradke, Magdalena S Volz, Michael J DeVivo, Yuying Chen, Ulrich H von Andrian, Jan M Schwab
Acute spinal cord injury (SCI) causes systemic immunosuppression and life-threatening infections, thought to result from noradrenergic overactivation and excess glucocorticoid release via hypothalamus-pituitary-adrenal axis stimulation. Instead of consecutive hypothalamus-pituitary-adrenal axis activation, we report that acute SCI in mice induced suppression of serum norepinephrine and concomitant increase in cortisol, despite suppressed adrenocorticotropic hormone, indicating primary (adrenal) hypercortisolism...
September 18, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28920449/the-relationship-between-migraine-and-rosacea-systematic-review-and-meta-analysis
#20
Casper Emil Christensen, Frederikke Schelde Andersen, Nita Wienholtz, Alexander Egeberg, Jacob P Thyssen, Messoud Ashina
Objective To systematically review the association between migraine and rosacea. Background Migraine is a complex disorder with episodes of headache, nausea, photo- and phonophobia. Rosacea is an inflammatory skin condition with flushing, erythema, telangiectasia, papules, and pustules. Both are chronic disorders with exacerbations of symptoms almost exclusively in areas innervated by the trigeminal nerve. Previous studies found an association between these disorders. We review these findings, provide a meta-analysis, and discuss possible pathophysiological commonalities...
January 1, 2017: Cephalalgia: An International Journal of Headache
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