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sensory nerve and bone

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https://www.readbyqxmd.com/read/29191538/collet-sicard-syndrome-attributable-to-extramedullary-plasmacytoma-of-the-jugular-foramen
#1
Soliman Oushy, Christopher S Graffeo, Avital Perry, Jonathan M Morris, Matthew L Carlson, Jamie J Van Gompel
BACKGROUND: Collet-Sicard syndrome is a rare manifestation of skull base disease involving the jugular and hypoglossal foramina. We report the first case of Collet-Sicard attributable to extramedullary plasmacytoma-multiple myeloma (EP-MM), as well as the second case of EP-MM precipitating a jugular foramen syndrome (JFS)-spectrum disorder. CASE DESCRIPTION: A fifty-nine-year-old woman presented with 4-months of left aural fullness and pulsatile tenderness, positional vertigo, hoarseness, and dysphagia...
November 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29183676/depolarization-and-electrical-stimulation-enhance-in-vitro-and-in-vivo-sensory-axon-growth-after-spinal-cord-injury
#2
Ioana Goganau, Beatrice Sandner, Norbert Weidner, Karim Fouad, Armin Blesch
Activity dependent plasticity is a key mechanism for the central nervous system (CNS) to adapt to its environment. Whether neuronal activity also influences axonal regeneration in the injured CNS, and whether electrical stimulation (ES) can activate regenerative programs in the injured CNS remains incompletely understood. Using KCl-induced depolarization, in vivo ES followed by ex-vivo neurite growth assays and ES after spinal cord lesions and cell grafting, we aimed to identify parameters important for ES-enhanced neurite growth and axonal regeneration...
November 25, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29145316/application-of-ultrasound-guided-c5-nerve-root-block-using-polydeoxyribonucleotide-in-traumatic-c5-nerve-root-injury-caused-by-fracture-of-the-articular-process-of-the-cervical-spine-a-case-report
#3
Donghwi Park
RATIONALE: Cervical nerve root injury is one of the complications of traumatic cervical spine fracture. Although one of the most effective treatments to reduce inflammation in nerve root injuries is the use of corticosteroids or nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids and NSAIDs can inhibit bone healing. So, when nerve injury accompanies bone fractures, corticosteroids and NSAIDs have limitations as therapeutic agents. However, polydeoxyribonucleotide (PDRN) may be useful in the treatment of neuropathy or musculoskeletal pain patients with contraindication of the use of corticosteroids because of its anti-inflammatory effect, as revealed in previous studies...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29081130/-change-in-peripheral-nervous-conduction-velocity-in-patients-with-occupational-chronic-mercury-poisoning-and-related-influencing-factors
#4
L Li, B Jiang, J Lai, W R Dai, X Li, W F Liu, Z X Yang, L Xie
Objective: To investigate the change in peripheral nervous conduction velocity in patients with occupational chronic mercury poisoning and related influencing factors. Methods: From February 2011 to December 2014, urinary mercury examination and neural electromyography were performed for 104 patients with occupational chronic mercury poisoning. The data on age, type of work, working years of mercury exposure, and past medical history were collected, and peripheral nervous conduction velocity and its correlation with age, working years of mercury exposure, and urinary mercury concentration were analyzed...
August 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29063597/patterning-spinal-nerves-and-vertebral-bones
#5
REVIEW
Roger Keynes
A prominent anatomical feature of the peripheral nervous system is the segmentation of mixed (motor, sensory and autonomic) spinal nerves alongside the spinal cord. During early development their axon growth cones avoid the developing vertebral elements by traversing the anterior/cranial half of each somite-derived sclerotome, so ensuring the separation of spinal nerves from vertebral bones as axons extend towards their peripheral targets. A glycoprotein expressed on the surface of posterior half-sclerotome cells confines growth cones to the anterior half-sclerotomes by contact repulsion...
October 24, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29057273/correlates-of-calcaneal-quantitative-ultrasound-parameters-in-patients-with-diabetes-the-study-on-the-assessment-of-determinants-of-muscle-and-bone-strength-abnormalities-in-diabetes
#6
Francesco Conti, Stefano Balducci, Luca Pugliese, Valeria D'Errico, Martina Vitale, Elena Alessi, Gerardo Salerno, Carla Iacobini, Stefano Menini, Lucilla Bollanti, Antonio Nicolucci, Giuseppe Pugliese
OBJECTIVE: Quantitative ultrasound (QUS) provides an estimate of bone mineral density (BMD) and also evaluates bone quality, which has been related to increased fracture risk in people with diabetes. This study aimed at assessing the correlates of calcaneal QUS parameters in diabetic subjects encompassing various degrees of micro and macrovascular complications and a wide-range of peripheral nerve function. METHODS: Four hundred consecutive diabetic patients were examined by QUS to obtain values of broadband ultrasound attenuation (BUA), the speed of sound (SOS), quantitative ultrasound index (QUI), and BMD...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29043245/intentional-partial-odontectomy-a-long-term-follow-up-study
#7
Hyun-Suk Kim, Pil-Young Yun, Young-Kyun Kim
BACKGROUND: The surgical extraction of the third molar is the most frequently encountered procedure in oral and maxillofacial surgery and is related with a variety of complications. This study examined the efficacy of intentional partial odontectomy (IPO) in the third molars which have no periapical lesions and are located near important anatomical structures such as inferior alveolar nerve. METHODS: Seven patients (four males, three females, 39.1 ± 11.6 years), who received IPO to reduce the risk of inferior alveolar nerve injury (IANI), were followed long-term...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29026818/variations-in-the-anatomical-structures-of-the-guyon-canal
#8
Zahir T Fadel, Osama A Samargandi, David T Tang
BACKGROUND: Compression neuropathy of the ulnar nerve at the Guyon canal is commonly seen by hand surgeons. Different anatomical variations of structures related to the Guyon canal have been reported in the literature. A thorough knowledge of the normal contents and possible variations is essential during surgery and exploration. OBJECTIVES: To review the recognized anatomical variations within and around the Guyon canal. METHODS: This study is a narrative review in which relevant papers, clinical studies, and anatomical studies were selected by searching electronic databases (PubMed and EMBASE)...
May 2017: Plastic Surgery
https://www.readbyqxmd.com/read/28963787/modified-technique-for-preservation-of-inferior-alveolar-nerve-during-mandibulectomy
#9
Min-Jie Chen, Chi Yang, Dong Huang, Dong-Mei He, Yi-Wen Wang, Wen-Hao Zhang
BACKGROUND: The purpose of this article is to introduce the modified technique of preservation of the inferior alveolar nerve (IAN) during mandibulectomy for a benign lesion. METHODS: Five cases of osteofibrous hyperplasia and 3 cases of centricity osteomyelitis were included. During surgery, the IAN was marked using a planned cutting guide. Using an oscillating saw, the depth of the osteotomy along the IAN was controlled until the bone cortex was cut through. After splitting, the bony section was removed, leaving the neurovascular bundle intact...
December 2017: Head & Neck
https://www.readbyqxmd.com/read/28955292/molecular-mechanisms-that-contribute-to-bone-marrow-pain
#10
REVIEW
Jason J Ivanusic
Pain associated a bony pathology puts a significant burden on individuals, society, and the health-care systems worldwide. Pathology that involves the bone marrow activates sensory nerve terminal endings of peripheral bone marrow nociceptors, and is the likely trigger for pain. This review presents our current understanding of how bone marrow nociceptors are influenced by noxious stimuli presented in pathology associated with bone marrow. A number of ion channels and receptors are emerging as important modulators of the activity of peripheral bone marrow nociceptors...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28859662/chronic-pain-in-gaucher-disease-skeletal-or-neuropathic-origin
#11
Grazia Devigili, Michele De Filippo, Giovanni Ciana, Andrea Dardis, Christian Lettieri, Sara Rinaldo, Daniela Macor, Alessandro Moro, Roberto Eleopra, Bruno Bembi
BACKGOUND: Pain is one of the most disabling symptoms of Gaucher disease. It is referred by the majority of Gaucher patients and often persists despite long-term enzyme replacement treatment. It has been mainly considered as nociceptive pain secondary to skeletal involvement but it is described even in the absence of bone disease without a clear explanation. In the last years an increasing number of reports have described the presence of neurological manifestation in Gaucher type 1 patients, including subclinical large fibre neuropathy...
August 31, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28837387/crmp2-is-necessary-for-neurofibromatosis-type-1-related-pain
#12
Aubin Moutal, Song Cai, Shizhen Luo, Raphaëlle Voisin, Rajesh Khanna
Neurofibromatosis type 1 (NF1) is one of the most common genetic diseases, affecting roughly 1 in 3000 individuals. As a multisystem disorder, it affects cognitive development, as well as bone, nerve and muscle constitution. Peripheral neuropathy in NF1 constitutes a potentially severe clinical complication and is associated with increased morbidity and mortality. The discovery of effective therapies for Neurofibromatosis type 1 (NF1) pain depends on mechanistic understanding that has been limited, in part, by the relative lack of availability of animal models relevant to NF1 pain...
August 24, 2017: Channels
https://www.readbyqxmd.com/read/28818412/are-extramedian-symptoms-associated-with-peripheral-causes-in-patient-with-carpal-tunnel-syndrome-electrodiagnostic-and-ultrasonographic-study
#13
Basak Mansiz-Kaplan, Merve Akdeniz-Leblecicier, Ilker Yagci
OBJECTIVE: To evaluate the relationship between extramedian spreading of sensorial symptoms and median and ulnar nerve cross-sectional area (CSA) and to compare the ultrasonographic and electrophysiological findings in patients with carpal tunnel syndrome (CTS) with or without extramedian sensory symptoms. DESIGN: Cross-sectional study. MATERIALS AND METHODS: Patients with CTS were divided into two groups as with or without extramedian symptoms and were assessed clinically, electrophysiologically and ultrasonographically by three blind investigators...
August 10, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28807049/oral-manifestations-dental-management-and-a-rare-homozygous-mutation-of-the-prdm12-gene-in-a-boy-with-hereditary-sensory-and-autonomic-neuropathy-type-viii-a-case-report-and-review-of-the-literature
#14
Karim Elhennawy, Seif Reda, Christian Finke, Luitgard Graul-Neumann, Paul-Georg Jost-Brinkmann, Theodosia Bartzela
BACKGROUND: Hereditary sensory and autonomic neuropathy type VIII is a rare autosomal recessive inherited disorder. Chen et al. recently identified the causative gene and characterized biallelic mutations in the PR domain-containing protein 12 gene, which plays a role in the development of pain-sensing nerve cells. Our patient's family was included in Chen and colleagues' study. We performed a literature review of the PubMed library (January 1985 to December 2016) on hereditary sensory and autonomic neuropathy type I to VIII genetic disorders and their orofacial manifestations...
August 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28798722/autonomic-neuropathy-and-albuminocytologic-dissociation-in-cerebrospinal-fluid-as-the-presenting-features-of-primary-amyloidosis-a-case-report
#15
Jingjing Li, Yi Li, Hongbing Chen, Shihui Xing, Huiyu Feng, Dawei Liu, Dilong Wang, Jinsheng Zeng, Yuhua Fan
OBJECTIVE: Primary amyloidosis is a disease with a poor prognosis and multi-organ involvement. Here, we report the clinical and pathological features of a patient with primary amyloidosis featuring autonomic neuropathy as the initial symptom and albuminocytologic dissociation in the cerebrospinal fluid (CSF). METHODS: The patient was a 60-year-old Chinese male with numbness, orthostatic hypotension, and gastrointestinal symptoms. For diagnosis, we performed an electromyogram (EMG), lumbar puncture, Bence Jones protein urine test, serum electrophoresis blood test, sural nerve and rectal membrane biopsies, transthyretin (TTR) gene sequencing, and bone marrow puncture...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28718309/intra-articular-fracture-of-the-base-of-the-first-metacarpal-bone-treatment-through-a-volar-approach
#16
Violeta Levy, Marcelo Mazzola, Martín Gonzalez
BACKGROUND: Management of Bennett fractures has been controversial. Early reports supported closed reduction and casting with or without percutaneous pinning. Later, open reduction and internal fixation was advocated. The purpose of this article is to assess the surgical treatment using a direct volar approach. METHODS: Between March 2008 and December 2014, 21 patients with intra-articular first metacarpal fractures displaced more than 1 mm were operated on using a direct volar approach...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28652188/streptozocin-induced-type-1-diabetes-mellitus-results-in-decreased-density-of-cgrp-sensory-and-th-sympathetic-nerve-fibers-that-are-positively-correlated-with-bone-loss-at-the-mouse-femoral-neck
#17
Iris A Enríquez-Pérez, Karla E Galindo-Ordoñez, Christian E Pantoja-Ortíz, Arisaí Martínez-Martínez, Rosa I Acosta-González, Enriqueta Muñoz-Islas, Juan M Jiménez-Andrade
Type-1 diabetes mellitus (T1DM) results in loss of innervation in some tissues including epidermis and retina; however, the effect on bone innervation is unknown. Likewise, T1DM results in pathological bone loss and increased risk of fracture. Thus, we quantified the density of calcitonin gene-related peptide (CGRP(+)) sensory and tyrosine hydroxylase (TH(+)) sympathetic nerve fibers and determined the association between the innervation density and microarchitecture of trabecular bone at the mouse femoral neck...
August 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28615966/acute-physiological-and-electrical-accentuation-of-vagal-tone-has-no-effect-on-pain-or-gastrointestinal-motility-in-chronic-pancreatitis
#18
Jacob Juel, Christina Brock, Søren S Olesen, Adnan Madzak, Adam D Farmer, Qasim Aziz, Jens B Frøkjær, Asbjørn Mohr Drewes
BACKGROUND: The effective management of pain in chronic pancreatitis (CP) remains a therapeutic challenge. Analgesic drugs, such as opioids, and the underlying pathology can impair gut function. The autonomic nervous system influences hormone secretion and gut motility. In healthy volunteers, electrical (using noninvasive transcutaneous vagal nerve stimulation [t-VNS]) and physiological (using deep slow breathing [DSB]) modulation of parasympathetic tone results in pain attenuation and enhanced gut motility...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28600233/effect-of-tissue-heterogeneity-on-the-transmembrane-potential-of-type-1-spiral-ganglion-neurons-a-simulation-study
#19
Kiran Sriperumbudur, Hans Wilhelm Pau, Ursula van Rienen
Electric stimulation of the auditory nerve by cochlear implants has been a successful clinical intervention to treat the sensory neural deafness. In this pathological condition of the cochlea, type-1 spiral ganglion neurons in Rosenthal's canal play a vital role in the action potential initiation. Various morphological studies of the human temporal bones suggest that the spiral ganglion neurons are surrounded by heterogeneous structures formed by a variety of cells and tissues. However, the existing simulation models have not considered the tissue heterogeneity in the Rosenthal's canal while studying the electric field interaction with spiral ganglion neurons...
June 5, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28595839/piezosurgery-for-sagittal-split-osteotomy-procedure-duration-and-postoperative-sensory-perturbation
#20
RANDOMIZED CONTROLLED TRIAL
Robert Köhnke, Andreas Kolk, Lan Kluwe, Oliver Ploder
PURPOSE: To evaluate piezosurgery for bilateral sagittal split osteotomy (BSSO) for its duration and inferior alveolar nerve (IAN) perturbation. PATIENTS AND METHODS: In this prospective randomized study, the authors evaluated 100 BSSO procedures in 50 patients. Piezoelectric (group I) and conventional (group II) osteotomies were carried out on each side of the mandible of a patient by 2 specialists. The surgeons had at least 1 year of experience using piezosurgery...
September 2017: Journal of Oral and Maxillofacial Surgery
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