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sensory nerve and bone

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https://www.readbyqxmd.com/read/28316120/synergistic-effects-of-g-csf-and-bone-marrow-stromal-cells-on-nerve-regeneration-with-acellular-nerve-xenografts
#1
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
#2
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
#3
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...
March 7, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28254863/bone-pain-induced-by-multiple-myeloma-is-reduced-by-targeting-v-atpase-and-asic3
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/27875513/post-traumatic-trigeminal-neuropathy-caused-by-an-orbital-stab-wound
#14
Shinpei Matsuda, Hitoshi Yoshimura, Tadanori Hamano, Kazuo Sano
Sensory and motor neuropathy of the trigeminal nerve due to trauma is quite rare. Furthermore, there have been no detailed reports on occlusal abnormalities and trismus associated with post-traumatic trigeminal motor neuropathy. Here, the authors report a case of trigeminal motor neuropathy and trigeminal sensory neuropathy in all 3 divisions caused by an orbital stab wound. During kendo practice, a 61-year-old man was injured in his right medial canthus with the splinter of a broken bamboo sword. Imaging examinations did not show a brain injury or orbital bone fracture...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27843683/spinal-neuromodulation-as-a-novel-surgical-option-for-failed-back-surgery-syndrome-following-rhbmp-exuberant-bony-growth-in-instrumented-lumbar-fusion-a-case-report-and-literature-review
#15
Ramsis F Ghaly, Alexei Lissounov, Tatiana Tverdohleb, David Kohanchi, Kenneth D Candido, Nebojsa Nick Knezevic
BACKGROUND: Bone morphogenic protein (BMP) for instrumented lumbar fusion was approved in 2002, and since then has led to an increasing incidence of BMP-related neuropathic pain. These patients are usually resistant to conventional medical therapy and frequently undergo multiple surgical revisions without any pain relief. CASE DESCRIPTION: A 58-year-old male was referred to the author's outpatient clinic after four lumbar surgeries did not provide satisfactory pain relief...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27832017/elastic-stable-intramedullary-nailing-in-paediatric-forearm-fractures-the-rate-of-open-reduction-and-complications
#16
Daoud Makki, Hosam E Matar, Mark Webb, David M Wright, Leroy A James, David M Ricketts
The aim of this study was to evaluate the rate of open reduction and complications of elastic stable intramedullary nailing (ESIN) in treating unstable diaphyseal forearm fractures in children. We performed a retrospective review of a consecutive series of 102 paediatric patients with a mean age of 9 years (range: 7-14 years) who underwent ESIN of unstable closed forearm fractures at three different centres. Closed reduction of one or both bones was achieved in 68 (67%) patients and open reduction was required in 34 (33%) patients...
November 9, 2016: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/27801697/postoperative-complications-associated-with-reduction-malarplasty-via-intraoral-approach-a-meta-analysis
#17
Yujin Myung, Heeyeon Kwon, Sang Woo Lee, Rong-Min Baek
BACKGROUND: Each year, thousands of patients, particularly Eastern Asians, receive reduction malarplasty to achieve a more feminine and slender facial appearance. To date, there lacks a systematic analysis regarding the postoperative complications related to this procedure. Hence, the authors performed a comprehensive literature review with meta-analysis. METHODS: Articles were searched and reviewed using the MEDLINE and Embase databases. Among the studies regarding surgical outcomes after reduction malarplasty, articles with explicit reports and clear numbers of postoperative complications were selected for meta-analysis...
October 31, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27681986/age-dependent-impact-of-inferior-alveolar-nerve-transection-on-mandibular-bone-metabolism-and-the-underlying-mechanisms
#18
Qingqing Wu, Bo Yang, Cong Cao, Mengkai Guang, Ping Gong
Aging is associated with peripheral nerve degradation and bone destruction. The aim of the study is to elucidate the influence of sensory denervation on bone metabolism in different age groups by establishing a modified unilateral inferior alveolar nerve transection (IANT) model. The rats, divided into young, middle-aged and aged group, were sacrificed at 1, 2, 4 and 8 weeks after right IANT. The histological changes of mandibles were analyzed by fluorescent double labeling, micro-CT, HE, TRAP and anti-CGRP immunohistochemical staining...
December 2016: Journal of Molecular Histology
https://www.readbyqxmd.com/read/27600399/contributions-of-mouse-and-human-hematopoietic-cells-to-remodeling-of-the-adult-auditory-nerve-after-neuron-loss
#19
Hainan Lang, Eishi Nishimoto, Yazhi Xing, LaShardai N Brown, Kenyaria V Noble, Jeremy L Barth, Amanda C LaRue, Kiyoshi Ando, Bradley A Schulte
The peripheral auditory nerve (AN) carries sound information from sensory hair cells to the brain. The present study investigated the contribution of mouse and human hematopoietic stem cells (HSCs) to cellular diversity in the AN following the destruction of neuron cell bodies, also known as spiral ganglion neurons (SGNs). Exposure of the adult mouse cochlea to ouabain selectively killed type I SGNs and disrupted the blood-labyrinth barrier. This procedure also resulted in the upregulation of genes associated with hematopoietic cell homing and differentiation, and provided an environment conducive to the tissue engraftment of circulating stem/progenitor cells into the AN...
November 2016: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/27571347/implant-derived-magnesium-induces-local-neuronal-production-of-cgrp-to-improve-bone-fracture-healing-in-rats
#20
Yifeng Zhang, Jiankun Xu, Ye Chun Ruan, Mei Kuen Yu, Micheal O'Laughlin, Helen Wise, Di Chen, Li Tian, Dufang Shi, Jiali Wang, Sihui Chen, Jian Q Feng, Dick Ho Kiu Chow, Xinhui Xie, Lizhen Zheng, Le Huang, Shuo Huang, Kwoksui Leung, Na Lu, Lan Zhao, Huafang Li, Dewei Zhao, Xia Guo, Kaiming Chan, Frank Witte, Hsiao Chang Chan, Yufeng Zheng, Ling Qin
Orthopedic implants containing biodegradable magnesium have been used for fracture repair with considerable efficacy; however, the underlying mechanisms by which these implants improve fracture healing remain elusive. Here we show the formation of abundant new bone at peripheral cortical sites after intramedullary implantation of a pin containing ultrapure magnesium into the intact distal femur in rats. This response was accompanied by substantial increases of neuronal calcitonin gene-related polypeptide-α (CGRP) in both the peripheral cortex of the femur and the ipsilateral dorsal root ganglia (DRG)...
October 2016: Nature Medicine
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