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https://www.readbyqxmd.com/read/28544688/prolonged-denervation-induces-remodeling-of-nasal-mucosa-in-rat-model-of-posterior-nasal-neurectomy
#1
Hironobu Nishijima, Kenji Kondo, Makiko Toma-Hirano, Shu Kikuta, Mizuo Ando, Rumi Ueha, Tatsuya Yamasoba
BACKGROUND: The posterior nasal nerve is the dominant source of the parasympathetic, sympathetic, and sensory fibers that innervate the nasal respiratory mucosa. Therefore, a posterior nasal neurectomy (PNN) induces denervation of the nasal mucosa and relieves the nasal symptoms of intractable rhinitis. PNN depletes nerve fibers, choline acetyltransferase, and neuropeptides in nasal respiratory mucosa, and reduces nasal secretion. However, the histological and symptomatic changes over an extended period after PNN remain unknown...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28543879/vglut1-synapses-and-p-boutons-on-regenerating-motoneurons-after-nerve-crush
#2
Adam J Schultz, Travis M Rotterman, Anirudh Dwarakanath, Francisco J Alvarez
Stretch-sensitive Ia afferent monosynaptic connections with motoneurons form the stretch reflex circuit. After nerve transection, Ia afferent synapses and stretch reflexes are permanently lost, even after regeneration and efficient re-innervation of muscle by motor and sensory afferents is completed in the periphery. This loss greatly affects full recovery of motor function. However, after nerve crush, reflex muscle forces during stretch do recover after muscle reinnervation and reportedly exceed 140% baseline values...
May 20, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28532969/lip-reconstruction-using-a-functioning-serratus-anterior-free-flap-preliminary-study
#3
A O Gundeslioglu, E C Karadag, I Inan, L Jasharllari, M N Selimoglu, F Guney, B Yuruten, M Bekerecioglu
Reconstructive surgery to the lips requires the replacement of defective tissues with similarly functioning tissues. While non-dynamic free tissue transfers provide adequate lower lip reconstruction, improved benefits may be obtained with innervated free muscle flaps. This study reports the use of innervated serratus anterior muscle free flaps for lip reconstruction in five patients. All patients had squamous cell carcinoma of either the upper or lower lip. After resection of the tumours, the resultant defects comprised two-thirds of the lips...
May 19, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28530217/-phonosurgical-methods-of-treatment-in-unilateral-vocal-folds-paralysis
#4
REVIEW
Bozena Kosztyła-Hojna, Greta Berger, Maciej Zdrojkowski
Glottal insufficiency (GI) is a cause of breathy voice that can profoundly affect quality of voice. Main causes are unilateral vocal fold paralysis or endoscopic cordectomy for the early treatment of laryngeal cancer of the glottis. The main strategy in surgical treatment is type I medialization thyroplasty according to Isshiki with the use of implants e.g. silastic, hydroxyapatite, titanium, Gore-Tex or Montgomery. Other procedures are arytenoid adduction, the injection laryngoplasty via thyrohyoid and cricothyroid approach and laryngeal reinnervation...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28527715/influence-of-netrin-1-on-reinnervation-of-laryngeal-muscles-following-recurrent-laryngeal-nerve-injury
#5
Ignacio Hernandez-Morato, Shira Koss, Sansar Sharma, Michael J Pitman
Following recurrent laryngeal nerve (RLN) injury, recovery results in poor functional restitution of the paralyzed vocal fold. Netrin-1 has been found to be upregulated in the rat posterior cricoarytenoid muscle (PCA) during nerve regeneration, We evaluated the effect of ectopic Netrin-1 in the PCA during RLN reinnervation. The right RLN was transected and Netrin-1 was injected into the PCA (2.5, 5, 10, 15, 20μg/ml). At 7 days post injury fluorescent retrograde tracer was injected into PCA and Thyroarytenoid (TA) muscles...
May 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28521852/upper-limb-nerve-transfers-a-review
#6
A Forli, M Bouyer, M Aribert, C Curvale, M Delord, D Corcella, F Moutet
While upper limb nerve transfers were first described and performed several years ago, they have seen expanded use in the past 20 years. Initially indicated for surgical repair of brachial plexus injuries with nerve root avulsion, the indications have been extended to post-ganglionic lesions because of the excellent results of certain intraplexus nerve transfers. The traditional nerve repair techniques - primary suture and nerve grafting - form the basis of nerve surgery. Although nerve transfer does not replace them, they are a useful supplement as they provide a targeted approach to reinnervation and recovery of key functions of the upper limb...
June 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28501454/masseteric-nerve-for-gracilis-muscle-re-innervation-in-unilateral-facial-palsy-impact-on-quality-of-life
#7
B Bianchi, A Ferri, V Poddi, M Bergonzani, G Pedrazzi, S Ferrari, E Sesenna
BACKGROUND: Unilateral established or congenital facial palsies are usually treated with neuromuscular transplantation to reanimate the impaired side of the face. One of the most debated points is the motor nerve to choose for the reinnervation of the transplant. Contra-lateral healthy facial nerve is usually preferred, but in selected cases motor nerve to masseter is considered a valuable option. However only a few clinical studies focused on quality of life in this subset of patients are available in literature...
April 7, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28498963/hypertension-in-kidney-transplantation-is-associated-with-an-early-renal-nerve-sprouting
#8
Alessandro Mauriello, Valentina Rovella, Filippo Borri, Lucia Anemona, Elena Giannini, Erica Giacobbi, Andrea Saggini, Giampiero Palmieri, Alessandro Anselmo, Pierluigi Bove, Gerry Melino, Guardini Valentina, Manfredi Tesauro, D'Urso Gabriele, Nicola Di Daniele
Background.: Normalization of arterial pressure occurs in just a few patients with hypertensive chronic kidney disease undergoing kidney transplantation. Hypertension in kidney transplant recipients may be related to multiple factors. We aimed to assess whether hypertension in kidney-transplanted patients may be linked to reinnervation of renal arteries of the transplanted kidney. Methods.: We investigated renal arteries innervation from native and transplanted kidneys in three patients 5 months, 2 years and 11 years after transplantation, respectively...
May 12, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28490504/fasciculation-in-amyotrophic-lateral-sclerosis-origin-and-pathophysiological-relevance
#9
REVIEW
Mamede de Carvalho, Matthew C Kiernan, Michael Swash
This review considers the origin and significance of fasciculations in neurological practice, with an emphasis on fasciculations in amyotrophic lateral sclerosis (ALS), and in benign fasciculation syndromes. Fasciculation represents a brief spontaneous contraction that affects a small number of muscle fibres, causing a flicker of movement under the skin. While an understanding of the role of fasciculation in ALS remains incomplete, fasciculations derive from ectopic activity generated in the motor system. A proximal origin seems likely to contribute to the generation of fasciculation in the early stages of ALS, while distal sites of origin become more prominent later in the disease, associated with distal motor axonal sprouting as part of the reinnervation response that develops secondary to loss of motor neurons...
May 10, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28470940/p2x7-receptor-inhibition-attenuated-sympathetic-nerve-sprouting-after-myocardial-infarction-via-the-nlrp3-il-1%C3%AE-pathway
#10
Jie Yin, Yu Wang, Hesheng Hu, Xiaolu Li, Mei Xue, Wenjuan Cheng, Ye Wang, Xinran Li, Na Yang, Yugen Shi, Suhua Yan
Mounting evidence supports the hypothesis that inflammation modulates sympathetic sprouting after myocardial infarction (MI). The myeloid P2X7 signal has been shown to activate the nucleotide-binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome, a master regulator of inflammation. We investigated whether P2X7 signal participated in the pathogenesis of sympathetic reinnervation after MI, and whether NLRP3/interleukin-1β (IL-1β) axis is involved in the process...
May 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28458986/erratum-proximal-versus-distal-nerve-transfer-for-biceps-reinnervation-a-comparative-study-in-a-rats-brachial-plexus-injury-model-erratum
#11
(no author information available yet)
[This corrects the article DOI: 10.1097/GOX.0000000000001130.].
March 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28441799/-treatment-of-bilateral-vocal-cord-paralysis-by-hemi-phrenic-nerve-transfer
#12
W Song, M Li, H L Zheng, L Sun, S C Chen, D H Chen, F Liu, M H Zhu, C Y Zhang, W Wang
Objective: To investigate the surgical effect of reinnervation of bilateral posterior cricoarytenoid muscles(PCA) with left hemi-phrenic nerve and endoscopic laser arytenoid resection in bilateral vocal cord fold paralysis(BVFP) and to analyze the pros and cons of the two methods. Methods: One hundred and seventeen BVFP patients who underwent reinnervation of bilateral PCA using the left hemi-phrenic nerve approach (nerve group, n=52) or laser arytenoidectomy(laser group, n=65) were enrolled in this study from Jan...
April 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28407699/reinnervated-muscle-fiber-type-grouping-inevitable
#13
EDITORIAL
Tessa Gordon
No abstract text is available yet for this article.
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28403681/atrophy-ultra-structural-disorders-severe-atrophy-and-degeneration-of-denervated-human-muscle-in-sci-and-aging-implications-for-their-recovery-by-functional-electrical-stimulation-updated-2017
#14
Helmut Kern, Cristian Hofer, Stefan Loefler, Sandra Zampieri, Paolo Gargiulo, Alfonc Baba, Andrea Marcante, Francesco Piccione, Amber Pond, Ugo Carraro
OBJECTIVES: Long-term lower motor neuron denervation of skeletal muscle is known to result in degeneration of muscle with replacement by adipose and fibrotic tissues. However, long-term survival of a subset of skeletal myofibers also occurs. METHODS: We performed transverse and longitudinal studies of patients with spinal cord injury (SCI), patients specifically complete Conus and Cauda Equina Syndrome and also of active and sedentary seniors which included analyses of muscle biopsies from the quadriceps m...
April 13, 2017: Neurological Research
https://www.readbyqxmd.com/read/28396957/-transcutaneous-osseointegrated-prosthesis-top-after-limb-amputation-status-quo-and-perspectives
#15
Christian Willy, Christian Krettek
The majority of transfemoral and transtibial amputees can be functionally fitted with conventional suspension sockets; however, due to socket problems using conventional stump care, 60% of the patients have limited function and even in younger patients approximately one sixth are unable to wear the prosthesis daily. After the introduction of transcutaneous osseointegrated prostheses (TOP) the inherent problems of socket-stump care can be avoided for these patients. Against this background this article reviews the recent clinical development of TOP in Sweden, Germany, the Netherlands, Australia and USA currently in nine centers...
May 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28392073/combined-multi-lobed-flaps-a-series-of-39-extensive-hand-and-multi-digit-injuries-one-staged-reconstructions-using-modified-designs-of-alt-dpa-and-chimeric-linking-flaps
#16
Liang Tang, Georgios Pafitanis, Peng Yang, Zan Li, Ming Jia, Isao Koshima, Dajiang Song, Zhenglin Chi
INTRODUCTION: The use of multiple small flaps linked in a "chain-linked" flap microanastomosed chimeric system is recommended in distal hand and digital defects reconstruction. The aim of this study is to demonstrates our experience utilizing microsurgical fabrication, multi-lobed and linking combined flaps for the reconstruction of hand degloving injuries with complex multidigit soft tissue defects. METHODS: Microanastomosed chimeric flap systems using ALT and DPA modified designed flaps were combined in five selections to cover extensive soft tissue defects involving the hands and multiple digits of 39 patients (M:F - 36:3) from October 2009 to February 2013...
March 31, 2017: Injury
https://www.readbyqxmd.com/read/28372312/the-recovery-of-damaged-paraspinal-muscles-by-posterior-surgical-treatment-for-patients-with-lumbar-degenerative-diseases-and-its-clinical-consequence
#17
Jae-Ryong Cha, Yong-Chan Kim, Wan-Keun Yoon, Won-Gyu Lee, Tae-Hwan Kim, Jae-Keun Oh, Seok-Woo Kim, Suk Hoon Ohn, Ji Hao Cui
BACKGROUND: Posterior lumbar surgery can lead to damage on paraspinal muscles. OBJECTIVE: Our study aimed to examine the recovery in the denervated paraspinal muscles by posterior lumbar surgery and to determine that of improvement in the lower back pain (LBP). METHODS: Depending on surgical treatments, the patients were divided into two groups: The group I (interspinous implantation with decompression) and II (posterior lumbar interbody fusion with decompression)...
March 24, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28370683/management-of-unilateral-recurrent-laryngeal-nerve-injury-after-thyroid-surgery-a-review
#18
REVIEW
Jeremy Lynch, Rajeev Parameswaran
BACKGROUND: Recurrent laryngeal nerve (RLN) damage because of thyroid and parathyroid surgery has been recognized for over a century. Injury rates have been slowly decreasing in this period while effective treatment strategies have been increasing. METHODS: Recent literature was evaluated on the topics of anatomy, pathophysiology, avoidance, and conservative and surgical treatment of RLN injury. Data for this literature review were identified by PubMed and references from relevant articles using the search terms "thyroid," "laryngeal nerve," and "injury...
April 3, 2017: Head & Neck
https://www.readbyqxmd.com/read/28362971/stabilization-rolling-and-addition-of-other-extracellular-matrix-proteins-to-collagen-hydrogels-improve-regeneration-in-chitosan-guides-for-long-peripheral-nerve-gaps-in-rats
#19
Francisco Gonzalez-Perez, Stefano Cobianchi, Claudia Heimann, James B Phillips, Esther Udina, Xavier Navarro
BACKGROUND: Autograft is still the gold standard technique for the repair of long peripheral nerve injuries. The addition of biologically active scaffolds into the lumen of conduits to mimic the endoneurium of peripheral nerves may increase the final outcome of artificial nerve devices. Furthermore, the control of the orientation of the collagen fibers may provide some longitudinal guidance architecture providing a higher level of mesoscale tissue structure. OBJECTIVE: To evaluate the regenerative capabilities of chitosan conduits enriched with extracellular matrix-based scaffolds to bridge a critical gap of 15 mm in the rat sciatic nerve...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28362958/outcomes-of-transferring-a-healthy-motor-fascicle-from-the-radial-nerve-to-a-branch-for-the-triceps-to-recover-elbow-extension-in-partial-brachial-plexus-palsy
#20
Leandro Pretto Flores
BACKGROUND: Triceps reinnervation is an important objective to pursue when repairing the brachial plexus for cases with upper roots injuries, and a number of different techniques have been developed in order to restore elbow extension in such cases. OBJECTIVE: To demonstrate the surgical outcomes associated with the technique of transferring a single healthy motor fascicle from the radial nerve of the affected arm to a branch innervating 1 of the 3 heads of the triceps...
March 1, 2017: Neurosurgery
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