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https://www.readbyqxmd.com/read/28453557/perivascular-radiofrequency-renal-denervation-lowers-blood-pressure-and-ameliorates-cardiorenal-fibrosis-in-spontaneously-hypertensive-rats
#1
Shujie Wei, Dan Li, Yan Zhang, Linan Su, Yunrong Zhang, Qiang Wang, Dachun Yang, De Li, Yongjian Yang, Shuangtao Ma
BACKGROUND: Catheter-based renal denervation (RDN) is a promising approach to treat hypertension, but innervation patterns limit the response to endovascular RDN and the post-procedural renal artery narrowing or stenosis questions the endovascular ablation strategy. This study was performed to investigate the anti-hypertensive and target organ protective effects of perivascular RDN in spontaneously hypertensive rats (SHR). METHODS: SHR and normotensive Wistar-Kyoto (WKY) rats were divided into sham group (n = 10), radiofrequency ablation group (n = 20) in which rats received bilateral perivascular ablation with radiofrequency energy (2 watts), and chemical (10% phenol in 95% ethanol) ablation group (n = 12)...
2017: PloS One
https://www.readbyqxmd.com/read/28448704/-retrograde-intramedullary-nail-fixation-for-charcot-neuroarthropathy
#2
E López-Gavito, N A Gómez-Fuentes, P Parra-Téllez, M Lezama-Peniche, J Vázquez-Escamilla, S R León-Hernández
Charcot arthropathy is defined as an articular degenerative, chronic, progressive disease that affects one or more peripheral joints, develops as a result of a failure in the normal sensory perception (pain and proprioception) in the innervation of joints located in the foot and ankle, is characterized by destructive bone lesions without the presence of infection. Neuropathy is directly associated with diabetes mellitus type 1 and 2. Surgery is indicated when there is severe involvement of soft tissue, foot joints are unstable, at the presence of chronic or recurrent ulcers or when the foot and ankle can not fit to a normal shoe, and had limitation to perform activities of daily living...
September 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28448012/protocols-for-visualizing-steroidogenic-organs-and-their-interactive-organs-with-immunostaining-in-the-fruit-fly-drosophila-melanogaster
#3
Eisuke Imura, Yuto Yoshinari, Yuko Shimada-Niwa, Ryusuke Niwa
In multicellular organisms, a small group of cells is endowed with a specialized function in their biogenic activity, inducing a systemic response to growth and reproduction. In insects, the larval prothoracic gland (PG) and the adult female ovary play essential roles in biosynthesizing the principal steroid hormones called ecdysteroids. These ecdysteroidogenic organs are innervated from the nervous system, through which the timing of biosynthesis is affected by environmental cues. Here we describe a protocol for visualizing ecdysteroidogenic organs and their interactive organs in larvae and adults of the fruit fly Drosophila melanogaster, which provides a suitable model system for studying steroid hormone biosynthesis and its regulatory mechanism...
April 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28446948/characterization-of-nociceptive-behaviors-induced-by-formalin-in-the-glabrous-and-hairy-skin-of-rats
#4
Elaheh Erami, Hassan Azhdari-Zarmehri, Keiji Imoto, Hidemasa Furue
INTRODUCTION: Glabrous skin and hairy skin are innervated by different types of noxious fibers. However, the different nociceptive behaviors induced by formalin, a commonly used model of acute inflammatory pain, have not yet been systematically examined in the glabrous and hairy skin. METHODS: In this study, we compared nociceptive behaviors induced by formalin injections (2%, 4%, and 8%) into either glabrous skin (plantar surface) of the hind paw or hairy skin of the hind limb in adult rats...
January 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28446705/diverse-integrin-adhesion-stoichiometries-caused-by-varied-actomyosin-activity
#5
Natalia A Bulgakova, Jutta Wellmann, Nicholas H Brown
Cells in an organism are subjected to numerous sources of external and internal forces, and are able to sense and respond to these forces. Integrin-mediated adhesion links the extracellular matrix outside cells to the cytoskeleton inside, and participates in sensing, transmitting and responding to forces. While integrin adhesion rapidly adapts to changes in forces in isolated migrating cells, it is not known whether similar or more complex responses occur within intact, developing tissues. Here, we studied changes in integrin adhesion composition upon different contractility conditions in Drosophila embryonic muscles...
April 2017: Open Biology
https://www.readbyqxmd.com/read/28446581/cl-channel-is-required-for-cxcl10-induced-neuronal-activation-and-itch-response-in-a-murine-model-of-allergic-contact-dermatitis
#6
Lintao Qu, Kai Fu, Steven G Shimada, Robert H LaMotte
Persistent itch often accompanies allergic contact dermatitis (ACD), but the underlying mechanisms remain largely unexplored. We previously demonstrated that CXCL10/ CXCR3 signaling activated a subpopulation of cutaneous primary sensory neurons and mediated itch response after contact hypersensitivity (CHS), a murine model of ACD, induced by squaric acid dibutylester. The purpose of this study was to determine the ionic mechanisms underlying CXCL10-induced neuronal activation and allergic itch. In whole-cell recordings, CXCL10 triggered a current in dorsal root ganglion (DRG) neurons innervating the area of CHS...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28445778/the-impact-of-bilateral-vagotomy-on-the-physostigmine-induced-airway-constriction-in-ferrets
#7
Burim Neziri, Armond Daci, Shaip Krasniqi, Ramadan Sopi, Musa A Haxhiu
Vagal innervations have a great role in the respiratory function and are the main route of signal transmission from respiratory neural centers into the trachea and others conducting airways. We have investigated the role of central mechanisms related to vagal neural pathways and the cholinergic outflow in tracheobronchial smooth muscle tone and lung mechanics parameters. Parameters of lung mechanics such as lung resistance (RL), dynamic compliance (Cdyn) and pressure in bypassed tracheal segment (Ptseg) were measured before and after vagotomy and asphyxia test...
April 23, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28445371/preventing-early-stage-graft-bone-resorption-by-simultaneous-innervation-innervated-iliac-bone-flap-for-mandibular-reconstruction
#8
Lei Wang, Jian-Hua Wei, Xi Yang, Zi-Hui Yang, Mo-Yi Sun, Xiao-Bing Cheng, Li-Qun Xu, De-Lin Lei, Chen-Ping Zhang
BACKGROUND: Postoperative resorption of vascularized bone grafts jeopardizes the success of dental implant(s) and functional rehabilitation of the jaw. Recent evidence supports the crucial role of innervation in bone regeneration and turnover. METHODS: This study reports a new technique for simultaneous innervation of vascularized iliac flaps in mandibular reconstruction, through neurorrhaphy between ilioinguinal nerves, which innervate iliac bone, and inferior alveolar nerves or great auricular nerves...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28443569/can-a-small-intestine-segment-be-an-alternative-biological-conduit-for-peripheral-nerve-regeneration
#9
Mehmet S Arda, Emre A Koçman, Emre Özkara, Erdem Söztutar, Orhan Özatik, Aydan Köse, Cengiz Çetin
BACKGROUND: Autologous nerve grafts (ANG) are used to bridge peripheral nerve defects. Limited sources and donor site morbidity are the major problems of peripheral nerve grafts. Although various types of autologous grafts such as arteries, veins and muscles have been recommended, an ideal conduit has not been described yet. AIMS: The purpose of present study is to investigate the effectiveness of small intestinal conduit (SIC) for peripheral nerve defects. STUDY DESIGN: Animal experimentation...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28442998/glial-cell-line-derived-neurotrophic-factor-gene-delivery-in-parkinson-s-disease-a-delicate-balance-between-neuroprotection-trophic-effects-and-unwanted-compensatory-mechanisms
#10
REVIEW
Liliane Tenenbaum, Marie Humbert-Claude
Glial cell line-derived neurotrophic factor (GDNF) and Neurturin (NRTN) bind to a receptor complex consisting of a member of the GDNF family receptor (GFR)-α and the Ret tyrosine kinase. Both factors were shown to protect nigro-striatal dopaminergic neurons and reduce motor symptoms when applied terminally in toxin-induced Parkinson's disease (PD) models. However, clinical trials based on intraputaminal GDNF protein administration or recombinant adeno-associated virus (rAAV)-mediated NRTN gene delivery have been disappointing...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28439851/exploring-the-pathophysiology-of-takotsubo-cardiomyopathy
#11
REVIEW
Wengen Chen, Vasken Dilsizian
PURPOSE OF REVIEW: The purpose of this review is to explore the pathophysiology of Takotsubo cardiomyopathy by appraising the interplay between myocardial perfusion, function, metabolism, and, particularly, sympathetic innervation. RECENT FINDINGS: A number of hypotheses have been proposed to explain the pathogenesis of Takotsubo cardiomyopathy, which include (1) catecholamine cardiac toxicity, (2) myocardial sympathetic innervation disruption, (3) coronary vasospasm, (4) myocardial microvascular dysfunction, and (5) aborted myocardial infarction...
June 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28439028/bgp-15-prevents-the-death-of-neurons-in-a-mouse-model-of-familial-dysautonomia
#12
Sarah B Ohlen, Magdalena L Russell, Michael J Brownstein, Frances Lefcort
Hereditary sensory and autonomic neuropathy type III, or familial dysautonomia [FD; Online Mendelian Inheritance in Man (OMIM) 223900], affects the development and long-term viability of neurons in the peripheral nervous system (PNS) and retina. FD is caused by a point mutation in the gene IKBKAP/ELP1 that results in a tissue-specific reduction of the IKAP/ELP1 protein, a subunit of the Elongator complex. Hallmarks of the disease include vasomotor and cardiovascular instability and diminished pain and temperature sensation caused by reductions in sensory and autonomic neurons...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28437820/-therapy-of-hemifacial-spasm-with-botulinum-toxin
#13
Wolfgang H Jost, Rainer Laskawi, Anja Palmowski-Wolfe, Peter P Urban
Hemifacial spasm (HFS) is a frequent disorder characterized by involuntary contractions of those muscles innervated by the facialis nerve on one side of the face. The symptoms can appear as tonic or clonic, intermittent or permanent. Diagnosis is based purely on clinical observation. Differential diagnosis should rely on cranial MRI, which can demonstrate a pathological contact between the nerves and vessels and exclude alternative causation. Often, the symptoms are not marked so that therapy may not be necessary...
April 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28436279/treatment-of-painful-radiculopathies-with-capsaicin-8-cutaneous-patch
#14
R Baron, R D Treede, F Birklein, T Cegla, R Freynhagen, M L Heskamp, K U Kern, C Maier, R Rolke, S Seddigh, C Sommer, S Ständer, C Maihöfner
BACKGROUND AND OBJECTIVE: The treatment of neuropathic pain due to low-back (lumbosacral) radiculopathies, a common source of neuropathic pain, is challenging and often requires a multimodal therapeutic approach. The capsaicin 8% patch is the first topical analgesic licensed for peripheral neuropathic pain. To evaluate this treatment, a subset of patients with painful radiculopathy (lumbar and cervical, including ventral and dorsal rami) enrolled into the multicenter, non-interventional QUEPP study (Qutenza™ - safety and effectiveness in peripheral neuropathic pain) was analyzed...
April 22, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28435044/expertise-dependent-motor-somatotopy-of-music-perception
#15
Yuta Furukawa, Kazumasa Uehara, Shinichi Furuya
Precise mapping between sound and motion underlies successful communication and information transmission in speech and musical performance. Formation of the map typically undergoes plastic changes in the neuronal network between auditory and motor regions through training. However, to what extent the map is somatotopically-tuned so that auditory information can specifically modulate the corticospinal system responsible for the relevant motor action has not been elucidated. Here we addressed this issue by assessing the excitability of corticospinal system including the primary motor cortex (M1) innervating the hand intrinsic muscles by means of transcranial magnetic stimulation while trained pianists and musically-untrained individuals (non-musicians) were listening to either piano tones or noise...
April 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28434966/diagnostic-biopsy-of-a-motor-branch-of-the-superficial-peroneal-nerve-to-the-peroneus-longus-a-convenient-alternative-for-motor-nerve-biopsy
#16
Randy S D'Amico, Christopher J Winfree
INTRODUCTION: Motor nerve biopsy is performed to supplement clinical, serological, and imaging data in the work-up of neuropathies of unknown origin, especially when motor neuron disease is suspected. METHODS: We describe a surgical technique for biopsy of a motor branch of the superficial peroneal nerve innervating the peroneus longus muscle. RESULTS: Three patients presented with weakness concerning for motor neuropathy and underwent biopsy of a motor branch of the superficial peroneal nerve innervating the peroneus longus muscle...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434591/oxytocin-and-vasopressin-neural-networks-implications-for-social-behavioral-diversity-and-translational-neuroscience
#17
REVIEW
Zachary V Johnson, Larry J Young
Oxytocin- and vasopressin-related systems are present in invertebrate and vertebrate bilaterian animals, including humans, and exhibit conserved neuroanatomical and functional properties. In vertebrates, these systems innervate conserved neural networks that regulate social learning and behavior, including conspecific recognition, social attachment, and parental behavior. Individual and species-level variation in central organization of oxytocin and vasopressin systems has been linked to individual and species variation in social learning and behavior...
May 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28433752/serotonergic-transmission-and-gap-junctional-coupling-in-proventricular-muscle-cells-in-the-american-cockroach-periplaneta-americana
#18
Ryoichi Yoshimura, Taeko Suetsugu, Yasuhisa Endo
The visceral muscle tissues of insects consist of striated muscle cells. The mechanisms responsible for delivering signals to the contractile muscles in the insect digestive tract remain unclear. We found that serotonergic nerves innervate the hemocoel surfaces of foregut and midgut muscles in the American cockroach. Electron microscopy of the neuromuscular junctions in the proventriculus (gizzard) revealed typical synaptic structures, the accumulation of large core/cored vesicles (neuropeptides) and small clear vesicle (neurotransmitter) at presynapses, and synaptic clefts...
April 19, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28433644/supraspinal-respiratory-plasticity-following-acute-cervical-spinal-cord-injury
#19
Tatiana Bezdudnaya, Vitaliy Marchenko, Lyandysha V Zholudeva, Victoria M Spruance, Michael A Lane
Impaired breathing is a devastating result of high cervical spinal cord injuries (SCI) due to partial or full denervation of phrenic motoneurons, which innervate the diaphragm - a primary muscle of respiration. Consequently, people with cervical level injuries often become dependent on assisted ventilation and are susceptible to secondary complications. However, there is mounting evidence for limited spontaneous recovery of respiratory function following injury, demonstrating the neuroplastic potential of respiratory networks...
April 19, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28433558/spatial-relationship-of-organized-rotational-and-focal-sources-in-human-atrial-fibrillation-to-autonomic-ganglionated-plexi
#20
Tina Baykaner, Theodoros A Zografos, Junaid A B Zaman, Ioannis Pantos, Mahmood Alhusseini, Rachita Navara, David E Krummen, Sanjiv M Narayan, Demosthenes G Katritsis
BACKGROUND: One approach to improve ablation for atrial fibrillation (AF) is to focus on physiological targets including focal or rotational sources or ganglionic plexi (GP). However, the spatial relationship between these potential mechanisms has never been studied. We tested the hypothesis that rotors and focal sources for AF may co-localize with ganglionated plexi (GP). METHODS: We prospectively identified locations of AF rotors and focal sources, and correlated these to GP sites in 97 consecutive patients (age 59...
April 19, 2017: International Journal of Cardiology
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