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sensory nerve and bone

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https://www.readbyqxmd.com/read/28428919/tibial-bone-grafting-for-wrist-reconstruction
#1
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
#2
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...
April 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28413736/targeted-intraspinal-radiofrequency-ablation-for-lumbar-spinal-stenosis
#3
Robert E Jacobson, Michelle Granville, Jesse Hatgis DO
INTRODUCTION: By using a combination of magnetic resonance imaging (MRI) and computed tomography (CT) of the lumbar spine, it is possible to distinguish between spinal stenosis caused by bone compression and specific soft tissue epidural intraspinal lesions that cause localized spinal canal stenosis and neural compression. Examples include facet cysts and yellow ligament hypertrophy. Many of these patients are elderly with medical comorbidities that make open surgery problematic. MATERIALS & METHODS: This is a study of patients with predominantly soft tissue stenosis being treated with targeted intraspinal radiofrequency (RF) heat ablation...
March 10, 2017: Curēus
https://www.readbyqxmd.com/read/28409073/facial-paralysis-and-hearing-loss-a-rare-manifestation-of-prostate-cancer-metastases
#4
Uroosa Ibrahim, Amina Saqib, Farhan Mohammad, Muhammad R Raza, Nikhil Nalluri, Frank Forte
Dural prostate metastases (DPM) are a rare manifestation of metastatic prostate cancer seen in approximately one to six percent of cases. Presenting symptoms may include signs of elevated intracranial pressure, headache, altered mental status, or cranial nerve palsies. Hearing loss, sensory changes, dysarthria, and dysphagia are rare symptoms in DPM that were present in our patient. We present a case of a 58-year-old male with a known diagnosis of adenocarcinoma of the prostate presenting with symptoms of acute exacerbation of chronic obstructive pulmonary disease (COPD), sub-acute right-sided hearing loss, and right-sided facial paralysis...
March 3, 2017: Curēus
https://www.readbyqxmd.com/read/28404457/nerve-injury-during-anterior-cruciate-ligament-reconstruction-a-comparison-between-patellar-and-hamstring-tendon-grafts-harvest
#5
Barak Haviv, Shlomo Bronak, Ehud Rath, Mustafa Yassin
BACKGROUND: Tendon harvesting for anterior cruciate ligament reconstruction often injures sensory branches of the saphenous nerve. The reports on the prevalence of these injuries are scarce, while the implications on patient satisfaction are not known. Our objective was to compare the prevalence of sensory nerve injuries in patellar to hamstring autograft harvesting for anterior cruciate ligament reconstructions and follow up their postoperative course. METHODS: Between 2012 and 2014, patients who had a primary anterior cruciate ligament reconstruction with bone patellar tendon bone or hamstring autografts were included (n=94)...
April 9, 2017: Knee
https://www.readbyqxmd.com/read/28395984/efficacy-of-manual-therapy-including-neurodynamic-techniques-for-the-treatment-of-carpal-tunnel-syndrome-a-randomized-controlled-trial
#6
Tomasz Wolny, Edward Saulicz, Paweł Linek, Michael Shacklock, Andrzej Myśliwiec
OBJECTIVE: The purpose of this randomized trial was to compare the efficacy of manual therapy, including the use of neurodynamic techniques, with electrophysical modalities on patients with mild and moderate carpal tunnel syndrome (CTS). METHODS: The study included 140 CTS patients who were randomly assigned to the manual therapy (MT) group, which included the use of neurodynamic techniques, functional massage, and carpal bone mobilizations techniques, or to the electrophysical modalities (EM) group, which included laser and ultrasound therapy...
April 8, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28364109/-role-of-substance-p-and-calcitonin-gene-related-peptide-in-bone-metabolism
#7
Shuanglei Wang, Jie Xiao, Zhanchun Li
Substance P (SP) and calcitonin gene-related peptide (CGRP) are the neuropeptides released from the sensory nerve endings. Neuropeptides play a role in bone and the relevant organs. It exerts functions in regulation of the bone metabolism, fracture healing and pain by a certain way. The biological properties and distributions of SP and CGRP are closely related to the pathogenesis and development of bone metabolism, fracture healing and pain.
March 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28316120/synergistic-effects-of-g-csf-and-bone-marrow-stromal-cells-on-nerve-regeneration-with-acellular-nerve-xenografts
#8
Hua Jia, Ying Wang, Tao Wang, Yi Dong, Wei-Li Li, Jun-Ping Li, Wen-Zhi Ma, Xiao-Jie Tong, Zhong-Yi He
Peripheral nerve defects result in severe denervation presenting sensory and motor functional incapacitation. Currently, a satisfactory therapeutic treatment promoting the repair of injured nerves is not available. As shown in our previous study, acellular nerve xenografts (ANX) implanted with bone marrow stromal cells (BMSCs) replaced allografts and promoted nerve regeneration. Additionally, granulocyte-colony stimulating factor (G-CSF) has been proven to mobilize supplemental cells and enhance vascularization in the niche...
March 18, 2017: Synapse
https://www.readbyqxmd.com/read/28295390/mechanically-sensitive-a%C3%AE-nociceptors-that-innervate-bone-marrow-respond-to-changes-in-intra-osseous-pressure
#9
Sara Nencini, Jason Ivanusic
Whilst the sensory neurons and nerve terminals that innervate bone marrow have a morphology and molecular phenotype consistent with a role in nociception, little is known about their physiology or the mechanisms that generate and maintain bone pain. In the present study, we provide evidence that Aδ nociceptors that innervate the bone marrow respond to high threshold noxious mechanical stimulation, exhibit fatigue in response to prior stimulation, and in some cases can be sensitized by capsaicin. They can be classified on the basis of their response properties as either phasic-tonic units that appear to code for different intensities of intra-osseous pressure, or phasic units that code for the rate of change in intra-osseous pressure...
March 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28266869/pig-induced-pluripotent-stem-cell-derived-neural-rosettes-parallel-human-differentiation-into-sensory-neural-subtypes
#10
Robin L Webb, Amalia Gallegos-Cárdenas, Colette N Miller, Nicholas J Solomotis, Hong-Xiang Liu, Franklin D West, Steven L Stice
The pig is the large animal model of choice for study of nerve regeneration and wound repair. Availability of porcine sensory neural cells would conceptually allow for analogous cell-based peripheral nerve regeneration in porcine injuries of similar severity and size to those found in humans. After recently reporting that porcine (or pig) induced pluripotent stem cells (piPSCs) differentiate into neural rosette (NR) structures similar to human NRs, here we demonstrate that pig NR cells could differentiate into neural crest cells and other peripheral nervous system-relevant cell types...
April 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28254863/bone-pain-induced-by-multiple-myeloma-is-reduced-by-targeting-v-atpase-and-asic3
#11
Masahiro Hiasa, Tatsuo Okui, Yohance M Allette, Matthew S Ripsch, Ge-Hong Sun-Wada, Hiroki Wakabayashi, G David Roodman, Fletcher A White, Toshiyuki Yoneda
Multiple myeloma patients experience severe bone pain (MMBP) that is undertreated and poorly understood. In this study, we studied MMBP in an intratibial mouse xenograft model that employs JJN3 human multiple myeloma cells. In this model, mice develop MMBP associated in bone with increased sprouting of calcitonin gene-related peptide-positive (CGRP(+)) sensory nerves and in dorsal root ganglia (DRG) with upregulation of phosphorylated ERK1/2 (pERK1/2) and pCREB, two molecular indicators of neuron excitation...
March 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28203388/on-the-development-of-the-chondrocranium-and-the-histological-anatomy-of-the-head-in-perinatal-stages-of-marsupial-mammals
#12
REVIEW
Marcelo R Sánchez-Villagra, Analía M Forasiepi
An overview of the literature on the chondrocranium of marsupial mammals reveals a relative conservatism in shape and structures. We document the histological cranial anatomy of individuals representing Monodelphis domestica, Dromiciops gliroides, Perameles sp. and Macropus eugenii. The marsupial chondrocranium is generally characterized by the great breadth of the lamina basalis, absence of pila metoptica and large otic capsules. Its most anterior portion (cupula nasi anterior) is robust, and anterior to it there are well-developed tactile sensory structures, functionally important in the neonate...
2017: Zoological Letters
https://www.readbyqxmd.com/read/28194713/use-of-compressive-osseointegration-endoprostheses-for-massive-bone-loss-from-tumor-and-failed-arthroplasty-a-viable-option-in-the-upper-extremity
#13
Krista A Goulding, Adam Schwartz, Steven J Hattrup, R Lor Randall, Donald Lee, Damian M Rispoli, Daniel M Lerman, Christopher Beauchamp
BACKGROUND: Endoprostheses using principles of compressive osseointegration have shown good survivorship in several studies involving the lower extremity; however, no series to our knowledge have documented the use of this technology in the management of massive bone loss in the upper limb. QUESTIONS/PURPOSES: (1) What proportion of upper extremity implants using compressive osseointegration fixation principles achieved durable short-term fixation, and what were the modes of failure? (2) What surgical complications resulted from reconstruction using this technique? METHODS: A multiinstitutional retrospective review identified nine patients (five women; four men) who underwent 13 endoprosthetic replacements between 2003 and 2014 using compressive osseointegration (Compliant(®) Pre-stress Device [CPS]; Biomet Inc, Warsaw, IN, USA) in the upper extremity, including two proximal humeri, two humeral diaphyses, seven distal humeri, and two proximal ulna...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28173896/effects-of-a-sensory-branch-to-the-posterior-external-ear-canal-coughing-pain-ramsay-hunt-s-syndrome-and-hitselberger-s-sign
#14
S Mulazimoglu, R Flury, S Kapila, T Linder
BACKGROUND: A distinct nerve innervating the external auditory canal can often be identified in close relation to the facial nerve when gradually thinning the posterior canal wall. This nerve has been attributed to coughing during cerumen removal, neuralgic pain, Hitselberger's sign and vesicular eruptions described in Ramsay Hunt's syndrome. This study aimed to demonstrate the origin and clinical impact of this nerve. METHODS AND RESULTS: In patients with intractable otalgia or severe coughing whilst inserting a hearing aid, who responded temporarily to local anaesthesia, the symptoms could be resolved by sectioning a sensory branch to the posterior canal...
April 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28139189/prevalence-and-clinical-implications-of-nerve-injury-during-bone-patellar-tendon-bone-harvesting-for-anterior-cruciate-ligament-reconstruction
#15
Barak Haviv, Mustafa Yassin, Ehud Rath, Shlomo Bronak
PURPOSE: Tendon harvesting for anterior cruciate ligament (ACL) reconstruction often injure sensory branches of the saphenous nerve (SN). Our purpose was to estimate the prevalence and postoperative course of sensory nerve injuries in bone patellar tendon bone (BPTB) autograft harvesting for ACL reconstruction. METHODS: Between 2012 and 2014, patients who had primary ACL with BPTB autograft were included ( n = 60) and interviewed specifically for sensory loss and its recovery...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28127506/chemotherapy-induced-neuropathies-a-growing-problem-for-patients-and-health-care-providers
#16
Marta Banach, Judyta K Juranek, Aneta L Zygulska
INTRODUCTION: Chemotherapy-induced neuropathies are one of the most common side effects of cancer treatment, surpassing bone marrow suppression and kidney dysfunction. Chemotherapy effects on the nervous system vary between different classes of drugs and depend on specific chemical and physical properties of the drug used. The three most neurotoxic classes of anti-cancer drugs are: platinum-based drugs, taxanes, and thalidomide and its analogs; other, less neurotoxic but also commonly used drugs are: bortezomib, ixabepilone, and vinca alkaloids...
January 2017: Brain and Behavior
https://www.readbyqxmd.com/read/27920803/bone-pain-mechanism-in-osteoporosis-a-narrative-review
#17
REVIEW
Consalvo Mattia, Flaminia Coluzzi, Ludovica Celidonio, Renato Vellucci
Bone pain in elderly people dramatically affects their quality of life, with osteoporosis being the leading cause of skeletal related events. Peripheral and central mechanisms are involved in the pathogenesis of the nervous system sensitization. Osteoporosis in the elderly has been associated with increased density of bone sensory nerve fibers and their pathological modifications, together with an over-expression of nociceptors sensitized by the lowering pH due to the osteoclastic activity. The activation of N-methyl-D-aspartate (NMDA) receptors and the microglia, as a response to a range of pathological conditions, represent the leading cause of central sensitization...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27919954/tachykinin-receptor-3-distribution-in-human-oral-squamous-cell-carcinoma
#18
Kyoichi Obata, Tsuyoshi Shimo, Tatsuo Okui, Kenichi Matsumoto, Hiroyuki Takada, Kiyofumi Takabatake, Yuki Kunisada, Soichiro Ibaragi, Hitoshi Nagatsuka, Akira Sasaki
BACKGROUND: Tachykinin 3 (TAC3) and its preferred tachykinin receptor 3 (TACR3) that are prominently detected in the central nervous system, play significant roles in physiological development and specifically in the human reproductive system. The roles of TAC3/TACR3 in oral squamous cell carcinoma are unknown. MATERIALS AND METHODS: We examined the expression pattern of TAC3/TACR3 in clinically-resected oral squamous cell carcinoma samples using immunohistochemistry and immunofluorescence analysis...
2016: Anticancer Research
https://www.readbyqxmd.com/read/27890010/biological-function-and-mechanism-of-bone-marrow-mesenchymal-stem-cells-packed-poly-3-4-ethylenedioxythiophene-pedot-scaffolds-for-peripheral-nerve-injury-the-involvement-of-mir-21-notch-signaling-pathway
#19
Wenliang Wu, Shijun Zhang, Yunzhen Chen, Haichun Liu
Ununited peripheral nerves represent attractive site for connectivity with neuroprostheses because of their predictable internal topography allows for precise sorting of motor and sensory signals. Also transplantation of bone marrow mesenchymal stem cells (BMSCs) is increasingly recognized as an effective method of restore the peripheral nervous system injury due to its neuron-directed differentiation potential. This study was to evaluate the in vivo performance of BMSCs-packed Poly(3,4-ethylenedioxythiophene) (PEDOT) scaffolds across a critical nerve conduction gap and examine the potential mechanism by which BMSCs-packed PEDOT scaffolds mediates peripheral nerve regeneration in rat model of recurrent laryngeal nerve (RLN) deletion...
November 23, 2016: Current Neurovascular Research
https://www.readbyqxmd.com/read/27889918/inner-ear-labyrinth-anatomy-of-monotremes-and-implications-for-mammalian-inner-ear-evolution
#20
Julia A Schultz, Ulrich Zeller, Zhe-Xi Luo
The monophyletic clade Monotremata branches early from the rest of the mammalian crown group in the Jurassic and members of this clade retain many ancestral mammalian traits. Thus, accurate and detailed anatomical descriptions of this group can offer unique insight into the early evolutionary history of Mammalia. In this study, we examine the inner ear anatomy of two extant monotremes, Ornithorhynchus anatinus and Tachyglossus aculeatus, with the primary goals of elucidating the ancestral mammalian ear morphology and resolving inconsistencies found within previous descriptive literature...
November 27, 2016: Journal of Morphology
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