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sensory nerve and bone

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https://www.readbyqxmd.com/read/28818412/are-extramedian-symptoms-associated-with-peripheral-causes-in-patient-with-carpal-tunnel-syndrome-electrodiagnostic-and-ultrasonographic-study
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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...
May 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28586773/comparison-of-the-clinical-effectiveness-of-ultrasound-guided-corticosteroid-injection-with-and-without-needle-release-of-the-transverse-carpal-ligament-in-carpal-tunnel-syndrome
#9
Xuan-Yan Guo, Mao-Xiang Xiong, Yu Zhao, Fan-Ding He, Xue-Qing Cheng, Yan-Yan Wu, Kai Chen, Man Lu
BACKGROUND: To compare the clinical effectiveness of ultrasound-guided corticosteroid injection with and without needle release of the transverse carpal ligament (TCL) in carpal tunnel syndrome (CTS). METHODS: Between May 2014 and June 2016, 52 patients (56 wrists) with CTS were included in this study. Among these patients, 28 wrists were treated with ultrasound-guided corticosteroid injection plus needle release of the TCL (group A) and 28 wrists were treated with a single ultrasound-guided corticosteroids injection (group B)...
2017: European Neurology
https://www.readbyqxmd.com/read/28583160/differential-expression-of-cathepsin-e-in-transthyretin-amyloidosis-from-neuropathology-to-the-immune-system
#10
Nádia Pereira Gonçalves, João Moreira, Diana Martins, Paulo Vieira, Laura Obici, Giampaolo Merlini, Margarida Saraiva, Maria João Saraiva
BACKGROUND: Increasing evidence supports a key role for inflammation in the neurodegenerative process of familial amyloidotic polyneuropathy (FAP). While there seems to be an overactivation of the neuronal interleukin-1 signaling pathway, the immune response is apparently compromised in FAP. Accordingly, little immune cell infiltration is observed around pre-fibrillar or fibrillar amyloid deposits, with the underlying mechanism for this phenomenon remaining poorly understood. Cathepsin E (CtsE) is an important intermediate for antigen presentation and chemotaxis, but its role in the pathogenesis of FAP disease remains unknown...
June 6, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28566158/diagnostic-challenges-in-poems-syndrome-presenting-with-polyneuropathy-a-case-series
#11
Yuebing Li, Jason Valent, Payam Soltanzadeh, Nimish Thakore, Bashar Katirji
OBJECTIVE: To analyze the clinical characteristics of patients with POEMS presenting with polyneuropathy and discuss associated diagnostic challenges. METHOD: Retrospective analysis of 6 patients from 2 tertiary-care institutions. RESULTS: Six patients presented with progressive sensorimotor deficits predominantly or exclusively in the lower extremities and were diagnosed with POEMS syndrome. In 4 patients, a diagnosis of chronic inflammatory demyelinating polyradiculopathy (CIDP) was mistakenly made...
July 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28556476/neurophysiological-changes-associated-with-implant-associated-augmentation-procedures-in-the-lower-jaw
#12
Amely Hartmann, Claudia Welte-Jzyk, Marcus Seiler, Monika Daubländer
BACKGROUND: Neurophysiological changes after oral and maxillofacial surgery remain one of the topics of current research. PURPOSE: This study evaluated if implant placement associated with augmentation procedures increases the possibility of sensory disturbances or result in impaired quality of life during the healing period. MATERIAL AND METHODS: Patients who had obtained an implant placement in the lower jaw in combination with augmentation procedures were examined by implementing a comprehensive Quantitative Sensory Testing (QST) protocol for extra- and intraoral use...
May 29, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28516219/decreased-sensory-nerve-excitation-and-bone-pain-associated-with-mouse-lewis-lung-cancer-in-trpv1-deficient-mice
#13
Hiroki Wakabayashi, Satoshi Wakisaka, Toru Hiraga, Kenji Hata, Riko Nishimura, Makoto Tominaga, Toshiyuki Yoneda
Bone pain is one of the most common and life-limiting complications of cancer metastasis to bone. Although the mechanism of bone pain still remains poorly understood, bone pain is evoked as a consequence of sensitization and excitation of sensory nerves (SNs) innervating bone by noxious stimuli produced in the microenvironment of bone metastases. We showed that bone is innervated by calcitonin gene-related protein (CGRP)(+) SNs extending from dorsal root ganglia (DRG), the cell body of SNs, in mice. Mice intratibially injected with Lewis lung cancer (LLC) cells showed progressive bone pain evaluated by mechanical allodynia and flinching with increased CGRP(+) SNs in bone and augmented SN excitation in DRG as indicated by elevated numbers of pERK- and pCREB-immunoreactive neurons...
May 17, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28490668/-trka-cking-why-no-pain-no-gain-is-the-rule-for-bone-formation
#14
Benjamin Levi
Peripheral sensory nerves expressing TrkA innervate long bones and stimulate bone formation through the Wnt/β-catenin pathway when placed under stress.
May 10, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28457632/low-intensity-pulsed-ultrasound-induced-spinal-fusion-is-coupled-with-enhanced-calcitonin-gene-related-peptide-expression-in-rat-model
#15
Xiao-Yi Zhou, Xi-Ming Xu, Sui-Yi Wu, Fei Wang, Zi-Cheng Zhang, Yi-Lin Yang, Ming Li, Xian-Zhao Wei
Low-intensity pulsed ultrasound (LIPUS) has been found to accelerate fracture healing. In this study, we analyzed the role of calcitonin gene-related peptide (CGRP) in a rat spinal fusion model treated with LIPUS. The results revealed that LIPUS significantly increases bone formation, and the process was coupled with elevated CGRP innervation. CGRP was located in fibrous tissue, closely surrounding the allograft and newly formed cartilage. The density of CGRP peaked at week 3 after surgery in both the control (non-LIPUS-treated) and LIPUS-treated groups...
July 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28452955/peripheral-nerve-fibers-and-their-neurotransmitters-in-osteoarthritis-pathology
#16
REVIEW
Susanne Grässel, Dominique Muschter
The importance of the nociceptive nervous system for maintaining tissue homeostasis has been known for some time, and it has also been suggested that organogenesis and tissue repair are under neuronal control. Changes in peripheral joint innervation are supposed to be partly responsible for degenerative alterations in joint tissues which contribute to development of osteoarthritis. Various resident cell types of the musculoskeletal system express receptors for sensory and sympathetic neurotransmitters, allowing response to peripheral neuronal stimuli...
April 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28443600/retroauricular-approach-for-targeted-cochlear-therapy-experiments-in-wistar-albino-rats
#17
Selçuk Mülazımoğlu, Emre Ocak, Gülşah Kaygusuz, Mustafa Kürşat Gökcan
BACKGROUND: As the idea of stem cell technology in the treatment of sensorial hearing loss has emerged over the past decades, the need for in vivo models for related experiments has become explicit. One of the most common experimental models for inner ear stem cell delivery experiments is the Wistar albino rat. AIMS: To investigate the surgical anatomy of the temporal bone of the Wistar albino rat with respect to the dissection steps, operative techniques and potential pitfalls of surgery...
May 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28438966/mediation-of-movement-induced-breakthrough-cancer-pain-by-ib4-binding-nociceptors-in-rats
#18
Joshua Havelin, Ian Imbert, Devki Sukhtankar, Bethany Remeniuk, Ian Pelletier, Jonathan Gentry, Alec Okun, Timothy Tiutan, Frank Porreca, Tamara E King
Cancer-induced bone pain is characterized by moderate to severe ongoing pain that commonly requires the use of opiates. Even when ongoing pain is well controlled, patients can suffer breakthrough pain (BTP), episodic severe pain that "breaks through" the medication. We developed a novel model of cancer-induced BTP using female rats with mammary adenocarcinoma cells sealed within the tibia. We demonstrated previously that rats with bone cancer learn to prefer a context paired with saphenous nerve block to elicit pain relief (i...
May 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28428919/tibial-bone-grafting-for-wrist-reconstruction
#19
Schneider K Rancy, Stephanie D Malliaris, Scott W Wolfe
Background Iliac crest bone graft harvesting is routinely performed for upper extremity orthopedic procedures despite high complication rates associated with sensory nerve injury, hematoma, chronic pain, and fracture. Description of Technique Cancellous bone graft is harvested from the proximal tibia using a medial approach, minimizing donor site morbidity. Patients and Methods A retrospective review was undertaken of 14 patients who underwent cancellous proximal tibia bone graft harvesting to augment healing of wrist reconstruction, with 2 months minimum follow-up...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28416686/ngf-trka-signaling-in-sensory-nerves-is-required-for-skeletal-adaptation-to-mechanical-loads-in-mice
#20
Ryan E Tomlinson, Zhi Li, Zhu Li, Liliana Minichiello, Ryan C Riddle, Arun Venkatesan, Thomas L Clemens
Sensory nerves emanating from the dorsal root extensively innervate the surfaces of mammalian bone, a privileged location for the regulation of biomechanical signaling. Here, we show that NGF-TrkA signaling in skeletal sensory nerves is an early response to mechanical loading of bone and is required to achieve maximal load-induced bone formation. First, the elimination of TrkA signaling in mice harboring mutant TrkA(F592A) alleles was found to greatly attenuate load-induced bone formation induced by axial forelimb compression...
May 2, 2017: Proceedings of the National Academy of Sciences of the United States of America
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