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https://www.readbyqxmd.com/read/29159805/the-anatomy-of-the-infrarenal-lumbar-splanchnic-nerves-in-human-cadavers-implications-for-retroperitoneal-nerve-sparing-surgery
#1
Tyler S Beveridge, Dale E Fournier, Adam M R Groh, Marjorie Johnson, Nicholas E Power, Brian L Allman
Injury to the nerves of the aortic- and superior hypogastric plexuses during retroperitoneal surgery often results in significant post-operative complications, including retrograde ejaculation and/or loss of seminal emission in males. Although previous characterizations of these plexuses have done well to provide a basis for understanding the typical anatomy, additional research into the common variations of these plexuses could further optimize nerve-sparing techniques for retroperitoneal surgery. To achieve this, the present study aimed to document the prevalence and positional variability of the infrarenal lumbar splanchnic nerves (LSNs) through gross dissection of 26 human cadavers...
November 21, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29145322/ptosis-as-the-only-manifestation-of-diabetic-superior-division-oculomotor-nerve-palsy-a-case-report
#2
Ping-Yin Chou, Kun-Han Wu, Poyin Huang
RATIONALE: Diabetic oculomotor nerve palsies, also called ischemic third nerve palsies, are the most common etiologic subset of oculomotor nerve palsy in adults. Diabetic oculomotor nerve palsies typically present with ptosis and diplopia, but pupillary function is often spared. The oculomotor nerve separates into superior division and inferior division, with the superior division innervating the superior rectus and levator palpebrae superioris. The diabetic oculomotor nerve palsy may affect isolated superior or inferior division of the oculomotor nerve, but diplopia usually exists...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29141819/autoimmune-aquaporin-4-induced-damage-beyond-the-central-nervous-system
#3
REVIEW
Dian He, Anni Zhang, Ya Li, Gang Cai, Yuan Li, Shipeng Guo
Initially, it was believed that Aquaporin-4 (AQP4)- immunoglobulin G (IgG) only affected the central nervous system (CNS), and peripheral AQP4-expressing organs were usually spared. However, in recent years, increasing evidence has demonstrated that AQP4-IgG causes damage to peripheral organs beyond the CNS such as skeletal muscle, vestibulocochlear nerves, gastrointestinal tract, blood system, kidney, lung and placenta. Recently, the term "autoimmune aquaporin-4 channelopathy" has been proposed to incorporate a wide range of diseases associated with AQP4-IgG, including neuromyelitis optica spectrum disorders and AQP4-IgG-induced peripheral nerves system damage...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29141789/a-case-of-seropositive-neuromyelitis-optica-in-a-paediatric-patient-with-co-existing-acute-nephrotic-syndrome
#4
Thomas Volkman, Cheryl Hemingway
Neuromyelitis optica (NMO) and NMO spectrum disorder (NMOSD) is a rare relapsing autoimmune disease of the central nervous system constituting less than 1% of demyelinating diseases (Jeffery and Buncic, 1996). It preferentially affects the optic nerves and spinal cord, with the brain parenchyma generally spared. Demyelinating lesions are characterised by longitudinally extensive transverse myelitis (LETM) and often longitudinally extensive optic neuritis. Following the discovery of a novel pathogenic antibody, Aquaporin 4 in 2004 (Lennon et al...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29135313/third-cranial-nerve-palsy-after-a-chikungunya-virus-infection
#5
Ana Luiza Fontes de Azevedo Costa, Thiago Gonçalves Dos Santos Martins, Diogo Gonçalves Dos Santos Martins
Chikungunya fever is a disease caused by a virus from the same family as dengue and Zika. It is endemic in several parts of the world and has recently spread to Latin America. We report the case of a patient, aged 58 years, from Rio de Janeiro, Brazil, who in 2013 developed an acute bilateral third cranial nerve palsy sparing the pupil. After extensive investigation, it was diagnosed as caused by chikungunya infection. The patient was treated with pulse therapy and after 5 months of the onset of the condition, the patient showed improvement...
November 14, 2017: Strabismus
https://www.readbyqxmd.com/read/29134445/ptosis-and-bulbar-onset-an-unusual-phenotype-of-familial-als
#6
Fabiola De Marchi, L Corrado, E Bersano, M F Sarnelli, V Solara, S D'Alfonso, R Cantello, L Mazzini
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder of upper and lower motor neurons that usually spare the oculomotor nerves. Here, we describe a case of two siblings with a familial bulbar-onset ALS both with ptosis manifested at the onset of the disease.
November 13, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29133390/recovery-of-taste-organs-and-sensory-function-after-severe-loss-from-hedgehog-smoothened-inhibition-with-cancer-drug-sonidegib
#7
Archana Kumari, Alexandre N Ermilov, Marina Grachtchouk, Andrzej A Dlugosz, Benjamin L Allen, Robert M Bradley, Charlotte M Mistretta
Striking taste disturbances are reported in cancer patients treated with Hedgehog (HH)-pathway inhibitor drugs, including sonidegib (LDE225), which block the HH pathway effector Smoothened (SMO). We tested the potential for molecular, cellular, and functional recovery in mice from the severe disruption of taste-organ biology and taste sensation that follows HH/SMO signaling inhibition. Sonidegib treatment led to rapid loss of taste buds (TB) in both fungiform and circumvallate papillae, including disruption of TB progenitor-cell proliferation and differentiation...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29127470/rectus-abdominis-muscle-innervation-an-anatomical-study-with-surgical-implications-in-diep-flap-harvesting
#8
Carla Stecco, Gian Paolo Azzena, Veronica Macchi, Andrea Porzionato, Astrid Behr, Anna Rambaldo, Cesare Tiengo, Raffaele De Caro
PURPOSE: To improve the current knowledge of rectus abdominis innervation, so as to identify a safe area where the vascular pedicle should be dissected to reduce the risk of nerve damage during deep inferior epigastric perforator (DIEP) flap harvesting. METHODS: Ten abdominal wall dissections were performed. Perforating arteries were identified and classified into nerve-related perforators and non-nerve-related perforators depending on the presence of nerve branches crossing vessels...
November 10, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29124889/the-neurosafe-approach-to-nerve-sparing-in-robotic-assisted-radical-prostatectomy-in-a-british-setting-a-prospective-observational-comparative-study
#9
George Mirmilstein, Bhavan Rai, Olayinka Gbolahan, Vinaya Srirangam, Ashish Narula, Samita Agarwal, Tim Lane, Nikhil Vasdev, Jim Adshead
OBJECTIVES: To evaluate the NeuroSAFE technique in a British setting in men undergoing RALP. PATIENTS AND METHODS: We retrospectively analysed our prospectively maintained database of patients who underwent RALP between Nov 2008 and Feb 2017. We examined preoperative pathological and functional parameters, intra-operative nerve sparing, post-operative histology as well as functional and oncological follow-up. We compared those who had a NeuroSAFE approach and those who had nerve sparing without NeuroSAFE...
November 10, 2017: BJU International
https://www.readbyqxmd.com/read/29123421/lncrna-expression-in-the-spinal-cord-modulated-by-minocycline-in-a-mouse-model-of-spared-nerve-injury
#10
Zihao Liu, Ying Liang, Honghua Wang, Zhenhe Lu, Jinsheng Chen, Qiaodong Huang, Lei Sheng, Yinghong Ma, Huiying Du, Qingjuan Gong
Neuropathic pain is a common and refractory chronic pain that affects millions of people worldwide. Its underlying mechanisms are still unclear, but they may involve long noncoding RNAs (lncRNAs), which play crucial roles in a variety of biological functions, including nociception. We used microarrays to investigate the possible interactions between lncRNAs and neuropathic pain and identified 22,213 lncRNAs and 19,528 mRNAs in the spinal cord in a mouse model of spared nerve injury (SNI)-induced neuropathic pain...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29113795/a-novel-rat-model-of-brachial-plexus-injury-with-nerve-root-stumps
#11
Jintao Fang, Jiantao Yang, Yi Yang, Liang Li, Bengang Qin, Wenting He, Liwei Yan, Gang Chen, Zhehui Tu, Xiaolin Liu, Liqiang Gu
BACKGROUND: The C5-C6 nerve roots are usually spared from avulsion after brachial plexus injury (BPI) and thus can be used as donors for nerve grafting. To date, there are no appropriate animal models to evaluate spared nerve root stumps. Hence, the aim of this study was to establish and evaluate a rat model with spared nerve root stumps in BPI. NEW METHOD: In rupture group, the proximal parts of C5-T1 nerve roots were held with the surrounding muscles and the distal parts were pulled by a sudden force after the brachial plexus was fully exposed, and the results were compared with those of sham group...
November 4, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29109908/extraocular-muscle-repair-and-regeneration
#12
Mayank Verma, Krysta Fitzpatrick, Linda K McLoon
Purpose of Review: The goal of this review is to summarize the unique regenerative milieu within mature mammalian extraocular muscles (EOMs). This will aid in understanding disease propensity for and sparing of EOMs in skeletal muscle diseases as well as the recalcitrance of the EOM to injury. Recent Findings: The EOMs continually remodel throughout life and contain an extremely enriched number of myogenic precursor cells that differ in number and functional characteristics from those in limb skeletal muscle...
September 2017: Current Ophthalmology Reports
https://www.readbyqxmd.com/read/29108465/-express-polymorphine-provides-extended-analgesic-like-effects-in-mice-with-spared-nerve-injury
#13
Neil C Lax, Renxun Chen, Sarah R Leep, Kathryn Uhrich, Lei Yu, Benedict Kolber
No abstract text is available yet for this article.
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/29107625/activation-of-erk-creb-pathway-in-noradrenergic-neurons-contributes-to-hypernociceptive-phenotype-in-h4-receptor-knockout-mice-after-nerve-injury
#14
Maria Domenica Sanna, Tommaso Mello, Emanuela Masini, Nicoletta Galeotti
G-protein coupled receptor H4 (H4R) is a histamine receptor subtype that is involved in a condition of pathological chronic pain, but its pathophysiological function is unknown. Here, we investigate the role of H4R in a model of traumatic nerve injury. H4R knockout (H4R(-)/(-)) mice exposed to spared nerve injury (SNI) developed a more prominent mechanical and thermal hypersensitivity than wild type mice. Western blotting and immunofluorescence were used to characterize the cellular mechanisms. Nerve injury increased phosphorylated pERK MAPK expression in the spinal cord that was further promoted in H4R(-)/(-) genotype...
October 28, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29094305/noradrenergic-fiber-sprouting-and-altered-transduction-in-neuropathic-prefrontal-cortex
#15
Steven Cordeiro Matos, Maria Zamfir, Geraldine Longo, Alfredo Ribeiro-da-Silva, Philippe Séguéla
Functional changes in hyperpolarization-activated and cyclic nucleotide-gated (HCN) channels have been shown to contribute to medial prefrontal (mPFC) hyperexcitability after peripheral nerve injury. A reduction in the open probability of these neuronal channels might be relevant since this can enhance membrane input resistance and synaptic summation. However, the molecular mechanisms underlying neuropathy-associated alterations in HCN channel activity remain elusive. Using the spared nerve injury model of neuropathic pain in Long-Evans rats, we first discovered a significant increase in noradrenergic innervation within the mPFC of nerve-injured compared to control animals...
November 1, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/29091318/early-electrophysiological-findings-in-acute-inflammatory-demyelinating-polyradiculoneuropathy-variant-of-guillain-barre-syndrome-in-the-pakistani-population-a-comparison-with-global-data
#16
Ahmed Wali, Sara Khan
Acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and acute motor axonal neuropathy (AMAN) are the most common variants of Guillian Barre syndrome documented in the Asian population. However the variability of early neurophysiologic findings in the Asian population compared to western data has not been documented. Eighty seven cases of AIDP were retrospectively reviewed for their demographic, clinical, electrophysiological and laboratory data. Mean age of subjects was 31 ± 8 years with males more commonly affected...
November 1, 2017: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/29078779/inflammation-associated-regulation-of-rgs-in-astrocytes-and-putative-implication-in-neuropathic-pain
#17
Pierre J Doyen, Maxime Vergouts, Amandine Pochet, Nathalie Desmet, Sabien van Neerven, Gary Brook, Emmanuel Hermans
BACKGROUND: Regulators of G-protein signaling (RGS) are major physiological modulators of G-protein-coupled receptors (GPCR) signaling. Several GPCRs expressed in both neurons and astrocytes participate in the central control of pain processing, and the reduced efficacy of analgesics in neuropathic pain conditions may rely on alterations in RGS function. The expression and the regulation of RGS in astrocytes is poorly documented, and we herein hypothesized that neuroinflammation which is commonly observed in neuropathic pain could influence RGS expression in astrocytes...
October 27, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29075674/inflammation-and-nerve-injury-minimally-affect-mouse-voluntary-behaviors-proposed-as-indicators-of-pain
#18
Tayler D Sheahan, Edward R Siuda, Michael R Bruchas, Andrew J Shepherd, Durga P Mohapatra, Robert W Gereau, Judith P Golden
It has been suggested that the lack of rodent behavioral assays that represent the complexities of human pain contributes to the poor translational record of basic pain research findings. Clinically, chronic pain interferes with patient mobility and physical/social activities, and increases anxiety symptoms, in turn negatively impacting quality of life. To determine whether these behaviors are similarly influenced by putative pain manipulations in rodents, we systematically evaluated wheel running, locomotion, gait, social interaction, and anxiety-like behavior in models of inflammation and nerve injury in adult C57BL6/J male mice...
August 2017: Neurobiol Pain
https://www.readbyqxmd.com/read/29075231/inner-retinal-dysfunction-in-the-autosomal-recessive-spastic-ataxia-of-charlevoix-saguenay
#19
François-Xavier Borruat, Graham E Holder, Fion Bremner
The autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is associated with structural retinal abnormalities either directly visible on funduscopy or revealed by optical coherence tomography (OCT). Most patients with ARSACS have a whitish peripapillary appearance corresponding to a thickening of the peripapillary retinal nerve fiber layer. OCT has also shown an absence of the physiological foveal depression. Abnormal electroretinography (ERG) has previously been reported in only two cases, without further details...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29068554/internal-anal-sphincter-nerves-a-macroanatomical-and-microscopic-description-of-the-extrinsic-autonomic-nerve-supply-of-the-internal-anal-sphincter
#20
S Stelzner, M Böttner, J Kupsch, W Kneist, P Quirke, N P West, H Witzigmann, T Wedel
BACKGROUND: The internal anal sphincter (IAS) contributes substantially to anorectal functions. While its autonomic nerve supply has been studied at the microscopic level, little information is available concerning the macroscopic topography of extrinsic nerve fibres. This study was designed to identify neural connections between the pelvic plexus and the IAS, provide a detailed topographical description, and give histological proof of autonomic nerve tissue. METHODS: Macroscopic dissection of pelvic autonomic nerves was performed under magnification in seven (5 males, 2 females) hemipelvises obtained from body donors (67-92 years)...
October 25, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
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