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https://www.readbyqxmd.com/read/28102168/brachial-plexus-root-avulsion-injury-with-occipital-condyle-fractures-case-study
#1
Alicja Baranowska, Joanna Baranowska, Agata Pydych, Paweł Baranowski
Avulsion injuries of the brachial plexus with occipital condyle fractures are very rare and usually result from motor vehicle accidents. This paper presents an analysis of the case of a 24-year-old male patient who sustained both these injuries in a car accident. Computed tomography revealed a fracture of the right occipital condyle and a magnetic resonance scan showed spinal nerve disruption at the C3-C7 level on the left. The patient underwent conservative treatment.
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28102017/priming-the-stump-in-peripheral-nerve-injury-commentary-on-zhang-et%C3%A2-al-2017
#2
John C Elfar
No abstract text is available yet for this article.
January 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28101532/overexpression-of-brain-derived-neurotrophic-factor-protects-large-retinal-ganglion-cells-after-optic-nerve-crush-in-mice
#3
Liang Feng, Zhen Puyang, Hui Chen, Peiji Liang, John B Troy, Xiaorong Liu
Brain-derived neurotrophic factor (BDNF), a neurotrophin essential for neuron survival and function, plays an important role in neuroprotection during neurodegenerative diseases. In this study, we examined whether a modest increase of retinal BDNF promotes retinal ganglion cell (RGC) survival after acute injury of the optic nerve in mice. We adopted an inducible Cre-recombinase transgenic system to up-regulate BDNF in the mouse retina and then examined RGC survival after optic nerve crush by in vivo imaging...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28100749/promoted-interaction-of-c-ebp%C3%AE-with-demethylated-cxcr3-gene-promoter-contributes-to-neuropathic-pain-in-mice
#4
Bao-Chun Jiang, Li-Na He, Xiao-Bo Wu, Hui Shi, Wen-Wen Zhang, Zhi-Jun Zhang, De-Li Cao, Chun-Hua Li, Jun Gu, Yong-Jing Gao
: DNA methylation has been implicated in the pathogenesis of chronic pain. However, the specific genes regulated by DNA methylation under neuropathic pain condition remain largely unknown. Here we investigated how chemokine receptor CXCR3 is regulated by DNA methylation and how it contributes to neuropathic pain induced by spinal nerve ligation (SNL) in mice. SNL increased Cxcr3 mRNA and protein expression in the neurons of the spinal cord. Meanwhile, the CpG (5'-cytosine-phosphate-guanine-3') island in the Cxcr3 gene promoter region was demethylated, and the expression of DNA methyltransferase 3b (DNMT3b) was decreased...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28100234/arthroscopic-reduction-and-fixation-of-coronoid-fractures-with-an-exchange-rod-a-new-technique
#5
Kan Ouyang, Daping Wang, Wei Lu, Jianyi Xiong, Jian Xu, Liangquan Peng, Haifeng Liu, Hao Li, Wenzhe Feng
BACKGROUND: The ulnar coronoid process plays a central role in maintaining elbow stability. Some of its fractures were often combined with injury of bone and ligament. Arthroscopy enables perfect visualization to allow anatomical repair. METHODS: From January 2012 to December 2013, six patients (four males, two females) with a mean age of 26.6 years were treated. The left and right ulnas were involved in two and four patients, respectively. All patients suffered from ipsilateral subluxation of the elbow without associated radial fracture...
January 18, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28099278/recurrent-median-nerve-injury-in-a-weight-lifter
#6
Michael A Worobel, Bobby Alexander, Mark Hirsch, Vu Nguyen
Recurrent median neuropathy is an uncommon injury that can be commonly mistaken for other pathological causes. It is important to be aware of the potential causes and symptoms of injury as delay in diagnosis can lead to permanent decrease in hand function and disability. This case is a description of a 33-year-old male patient who previously presented with radicular symptoms and had complete resolution of his pain after a C7 selective nerve root block. Several months after presentation, he developed significant thenar atrophy, localized pain, and weakness associated with weight lifting activities...
February 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28099269/bilateral-leg-replantation-in-a-3-month-old-baby-after-a-knee-level-crush-amputation-a-2-year-follow-up
#7
Kresimir Bulic, Anko Antabak, Anto Dujmovic, Hrvoje Kisic, Mia Lorencin
We present a case of a successful bilateral leg replantation in a 3-month-old baby after a knee-level crush amputation with the loss of both knee joints. The legs were replanted after 4 hours of warm and an additional 2.5 and 3.5 hours of cold ischemia time. Both legs show motor and sensory reinnervation, without additional procedures performed on the right leg, and after a nerve reconstruction with cadaveric allografts on the left leg. Both replanted legs exhibit excellent bony and soft tissue growth. Two years after the injury, the patient is progressing well with rehabilitation, with favourable odds of having knee reconstructions performed at a later age...
January 18, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28098683/threading-the-needle-with-peripheral-nerve-blocks-achieving-analgesia-avoiding-neurological-injury
#8
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28098575/obstetric-anesthesia-liability-concerns
#9
Joanna M Davies, Linda S Stephens
Obstetric practice carries a high risk of medical liability and involves both obstetricians and anesthesiologists. Analysis of data from the Anesthesia Closed Claims Project database shows an increase in the proportion of anesthesia claims for maternal death and brain damage between the 1990s and 2000 and later, primarily due to hemorrhage. The proportion of claims for newborn brain damage remained unchanged while those for maternal nerve injury and minor injuries decreased. Use of massive transfusion protocols and clinical drills have been shown to improve outcomes from hemorrhage...
January 16, 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28097486/the-therapeutic-effectiveness-of-delayed-fetal-spinal-cord-tissue-transplantation-on-respiratory-function-following-mid-cervical-spinal-cord-injury
#10
Chia-Ching Lin, Sih-Rong Lai, Yu-Han Shao, Chun-Lin Chen, Kun-Ze Lee
Respiratory impairment due to damage of the spinal respiratory motoneurons and interruption of the descending drives from brainstem premotor neurons to spinal respiratory motoneurons is the leading cause of morbidity and mortality following cervical spinal cord injury. The present study was designed to evaluate the therapeutic effectiveness of delayed transplantation of fetal spinal cord (FSC) tissue on respiratory function in rats with mid-cervical spinal cord injury. Embryonic day-14 rat FSC tissue was transplanted into a C4 spinal cord hemilesion cavity in adult male rats at 1 week postinjury...
January 17, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28097464/cdc42-promotes-schwann-cell-proliferation-and-migration-through-wnt-%C3%AE-catenin-and-p38-mapk-signaling-pathway-after-sciatic-nerve-injury
#11
Bin Han, Jun-Ying Zhao, Wu-Tao Wang, Zheng-Wei Li, Ai-Ping He, Xiao-Yang Song
Schwann cells (SCs) are unique glial cells in the peripheral nerve and may secrete multiple neurotrophic factors, adhesion molecules, extracellular matrix molecules to form the microenvironment of peripheral nerve regeneration, guiding and supporting nerve proliferation and migration. Cdc42 plays an important regulatory role in dynamic changes of the cytoskeleton. However, there is a little study referred to regulation and mechanism of Cdc42 on glial cells after peripheral nerve injury. The present study investigated the role of Cdc42 in the proliferation and migration of SCs after sciatic nerve injury...
January 17, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28097067/anatomical-mechanism-of-spontaneous-recovery-in-regions-caudal-to-thoracic-spinal-cord-injury-lesions-in-rats
#12
Lu-Sheng Li, Hao Yu, Raynald Raynald, Xiao-Dong Wang, Guang-Hui Dai, Hong-Bin Cheng, Xue-Bin Liu, Yi-Hua An
BACKGROUND: The nerve fibre circuits around a lesion play a major role in the spontaneous recovery process after spinal cord hemisection in rats. The aim of the present study was to answer the following question: in the re-control process, do all spinal cord nerves below the lesion site participate, or do the spinal cord nerves of only one vertebral segment have a role in repair? METHODS: First we made a T7 spinal cord hemisection in 50 rats. Eight weeks later, they were divided into three groups based on distinct second operations at T7: ipsilateral hemisection operation, contralateral hemisection, or transection...
2017: PeerJ
https://www.readbyqxmd.com/read/28096601/video-laryngoscope-aids-in-the-assessment-of-vocal-cord-paralysis-due-to-recurrent-laryngeal-nerve-injury-after-thyroid-surgery
#13
Faisal Shamim, Marium Nafis, Mubasher Ikram
No abstract text is available yet for this article.
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28095914/vascular-mapping-of-the-retroauricular-skin-proposal-for-a-posterior-superior-surgical-incision-for-transcutaneous-bone-conduction-hearing-implants
#14
Adam Perenyi, Zsofia Bere, Janos Jarabin, Balazs Sztano, Edit Kukla, Ziad Bikhazi, Laszlo Tiszlavicz, Ferenc Toth, Jozsef Geza Kiss, Laszlo Rovo
BACKGROUND: Passive transcutaneous osseointegrated hearing implant systems have become increasingly popular more recently. The area over the implant is vulnerable due to vibration and pressure from the externally worn sound processor. Good perfusion and neural integrity has the potential to reduce complications. The authors' objective was to determine the ideal surgical exposure to maintain perfusion and neural integrity and decrease surgical time as a result of reduced bleeding. METHODS: The vascular anatomy of the temporal-parietal soft tissue was examined in a total of 50 subjects...
January 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28095643/seeing-the-future-using-xenopus-to-understand-eye-regeneration
#15
REVIEW
Ai-Sun Tseng
Studies of Xenopus eye development have contributed considerably to the understanding of vertebrate neurogenesis, including eye field specification, cell fate determination and identification of genes critical for eye formation. This knowledge has served as a solid foundation for cellular and molecular examinations of the robust regenerative capacity of the Xenopus eye. The retina, lens, and the optic nerve are capable of regeneration after injury in both larval and adult stages. Here, we discuss the current models for studying eye regeneration in Xenopus and their potential applications for providing insights into human eye diseases...
January 17, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28095324/formalin-injection-produces-long-lasting-hypersensitivity-with-characteristics-of-neuropathic-pain
#16
Ana Belen Salinas-Abarca, Sabino Hazael Avila-Rojas, Paulino Barragán-Iglesias, Jorge Baruch Pineda-Farias, Vinicio Granados-Soto
The purpose of this study was to investigate whether 1%, 2% or 5% formalin injection produce hypersensitivity with characteristics of the neuropathic pain induced by spinal nerve injury. Formalin injection (1%, 2% and 5%) produced concentration-dependent long-lasting (at least 14 days) mechanical allodynia and hyperalgesia in both paws. Likewise, L5/L6 spinal nerve ligation induced allodynia and hyperalgesia in both paws. The intensity of hypersensitivity was greater in the ipsilateral than in the contralateral paw in all models...
January 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28093336/peripheral-nerve-injury-potentiates-excitatory-synaptic-transmission-in-locus-coeruleus-neurons
#17
Kambiz Rohampour, Hossein Azizi, Yaghoub Fathollahi, Saeed Semnanian
Peripheral nerve injury (PNI) is believed to cause maladaptive changes at synaptic level, leading to neuropathic pain which is difficult to treat with common analgesic drugs. Noradrenergic locus coeruleus (LC) neurons have a crucial role in neuropathic pain modulation. In this study we examined whether chronic constriction injury (CCI) could affect glutamatergic synaptic transmission in LC neurons. CCI was performed on P10 to P12 Sprague Dawley pups. Seven days after CCI, horizontal slices of brainstem (300μm thick) were prepared and whole-cell patch clamp recording was performed...
January 13, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28093018/algorithm-for-bionic-hand-reconstruction-in-patients-with-global-brachial-plexopathies
#18
Laura A Hruby, Agnes Sturma, Johannes A Mayer, Anna Pittermann, Stefan Salminger, Oskar C Aszmann
OBJECTIVE Global brachial plexus lesions with multiple root avulsions are among the most severe nerve injuries, leading to lifelong disability. Fortunately, in most cases primary and secondary reconstructions provide a stable shoulder and restore sufficient arm function. Restoration of biological hand function, however, remains a reconstructive goal that is difficult to reach. The recently introduced concept of bionic reconstruction overcomes biological limitations of classic reconstructive surgery to restore hand function by combining selective nerve and muscle transfers with elective amputation of the functionless hand and its replacement with a prosthetic device...
January 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28092318/opening-injection-pressure-is-higher-in-intraneural-compared-with-perineural-injections-during-simulated-nerve-blocks-of-the-lower-limb-in-fresh-human-cadavers
#19
Kris Vermeylen, Marlies Hermans, Filiep Soetens, Evie Vereecke, Thorsten Steinfeldt, Gerbrand Groen, Admir Hadzic, Marc Van de Velde
BACKGROUND AND OBJECTIVES: Needle-induced nerve trauma and intraneural injection can lead to neurologic injury during peripheral nerve blocks. In this study, we assessed the utility of opening injection pressure (OIP), time to OIP, and rate of rise to OIP in detecting needle-nerve contact and intraneural injection. METHODS: Five common ultrasound-guided blocks of the femoral, saphenous, subgluteal sciatic, tibial, and common peroneal nerves were simulated in 10 fresh cadavers...
January 13, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28089666/mini-open-oblique-lumbar-interbody-fusion-olif-approach-for-multi-level-discectomy-and-fusion-involving-l5-s1-preliminary-experience
#20
Fahed Zairi, Tarek P Sunna, Harrison J Westwick, Alexander G Weil, Zhi Wang, Ghassan Boubez, Daniel Shedid
STUDY DESIGN: Technical description and single institution retrospective case series OBJECTIVE: Evaluate technical feasibility and evaluate complications of mini open retroperitoneal oblique lumbar interbody fusion (OLIF) at the L5-S1 level. SUMMARY OF BACKGROUND: The mini open retroperitoneal oblique lumbar interbody fusion (OLIF) approach was first described in 2012 as a surgical approach to achieve spinal fusion while limiting invasiveness of the exposure to the anterior lumbar spine...
January 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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