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https://www.readbyqxmd.com/read/28545172/femoral-nerve-block-versus-adductor-canal-block-for-analgesia-after-total-knee-arthroplasty
#1
REVIEW
In Jun Koh, Young Jun Choi, Man Soo Kim, Hyun Jung Koh, Min Sung Kang, Yong In
Inadequate pain management after total knee arthroplasty (TKA) impedes recovery, increases the risk of postoperative complications, and results in patient dissatisfaction. Although the preemptive use of multimodal measures is currently considered the principle of pain management after TKA, no gold standard pain management protocol has been established. Peripheral nerve blocks have been used as part of a contemporary multimodal approach to pain control after TKA. Femoral nerve block (FNB) has excellent postoperative analgesia and is now a commonly used analgesic modality for TKA pain control...
June 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28544688/prolonged-denervation-induces-remodeling-of-nasal-mucosa-in-rat-model-of-posterior-nasal-neurectomy
#2
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
#3
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/28542900/the-sensory-trigeminal-complex-and-the-organisation-of-its-primary-afferents-in-the-zebra-finch-taeniopygia-guttata
#4
Macarena Faunes, J Martin Wild, Thomas Finger
Our knowledge of the avian sensory trigeminal system has been largely restricted to the principal trigeminal nucleus (PrV) and its ascending projections to the forebrain. Studies addressing the cytoarchitecture and organisation of afferent input to the sensory trigeminal complex, which includes both the PrV and the nuclei of the descending trigeminal tract (nTTD), have only been performed in pigeons and ducks. Here we extend such an analysis to a songbird, the zebra finch (Taeniopygia guttata). We describe the cytoarchitecture of the sensory trigeminal complex, the patterns of calbindin-like and substance P-like immunoreactivity, and the organisation of afferents from the three branches of the trigeminal nerve and from the lingual branch of the hypoglossal nerve...
May 24, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28542868/initial-placement-and-secondary-displacement-of-a-new-suture-method-catheter-for-sciatic-nerve-block-in-healthy-volunteers-a-randomised-double-blind-pilot-study
#5
T S Lyngeraa, C Rothe, C Steen-Hansen, M H Madsen, C B Christiansen, A M Andreasen, L H Lundstrøm, K H W Lange
We performed a randomised double-blind pilot study in 16 healthy volunteers to investigate the success rate for placing a new suture-method catheter for sciatic nerve block. A catheter was inserted into both legs of volunteers and each was randomly allocated to receive 15 ml lidocaine 2% through the catheter in one leg and 15 ml saline in the other leg. Successful placement of the catheter was defined as a 20% decrease in maximum voluntary isometric contraction for dorsiflexion of the ankle. Secondary outcomes were maximum voluntary isometric contraction for plantar flexion at the ankle, surface electromyography and cold sensation...
May 25, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28541256/modulation-of-brainstem-activity-and-connectivity-by-respiratory-gated-auricular-vagal-afferent-nerve-stimulation-in-migraine-patients
#6
Ronald G Garcia, Richard L Lin, Jeungchan Lee, Jieun Kim, Riccardo Barbieri, Roberta Sclocco, Ajay D Wasan, Robert R Edwards, Bruce R Rosen, Nouchine Hadjikhani, Vitaly Napadow
Migraine pathophysiology includes altered brainstem excitability, and recent neuromodulatory approaches aimed at controlling migraine episodes have targeted key brainstem relay and modulatory nuclei. In this study, we evaluated the impact of respiratory-gated auricular vagal afferent nerve stimulation (RAVANS), a novel neuromodulatory intervention based on an existing transcutaneous vagus nerve stimulation approach, in the modulation of brainstem activity and connectivity in migraine patients. We applied 3T-functional magnetic resonance imaging with improved in-plane spatial resolution (2...
April 25, 2017: Pain
https://www.readbyqxmd.com/read/28541151/morphological-evaluation-of-merkel-cells-and-small-lamellated-sensory-receptors-in-the-equine-foot
#7
Robert M Bowker, Lisa S Lancaster, Diane A Isbell
OBJECTIVE To examine the equine foot for the presence of sensory receptors including Merkel cells and small lamellated Pacinian-like corpuscles (SLPCs). SAMPLE Forefeet obtained from 7 horses following euthanasia for reasons other than foot disease. PROCEDURES Disarticulated feet were cut into either sagittal sections or cross sections and immersed in neutral-buffered 4% formalin. Following fixation, samples were obtained from the midline of the dorsal aspect of the hoof wall and from the frog (cuneus ungulae) between the apex and central sulcus...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28540752/herpes-zoster-typical-and-atypical-presentations
#8
Roy Rafael Dayan, Roni Peleg
Varicella- zoster virus infection is an intriguing medical entity that involves many medical specialties including infectious diseases, immunology, dermatology, and neurology. It can affect patients from early childhood to old age. Its treatment requires expertise in pain management and psychological support. While varicella is caused by acute viremia, herpes zoster occurs after the dormant viral infection, involving the cranial nerve or sensory root ganglia, is re-activated and spreads orthodromically from the ganglion, via the sensory nerve root, to the innervated target tissue (skin, cornea, auditory canal, etc...
May 25, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28539836/dual-delivery-of-ngf-and-bfgf-coacervater-ameliorates-diabetic-peripheral-neuropathy-via-inhibiting-schwann-cells-apoptosis
#9
Rui Li, Jianfeng Ma, Yanqing Wu, Matthew Nangle, Shuang Zou, Yiyang Li, Jiayu Yin, Yingzheng Zhao, Helin Xu, Hongyu Zhang, Xiaokun Li, Qing Song Ye, Jian Wang, Jian Xiao
Diabetic neuropathy is a kind of insidious complications that impairs neural and vascular function and ultimately leads to somatic and visceral denervation. Basic fibroblast growth factor (bFGF) and nerve growth factor (NGF) are important neurotrophic factors for stimulating angiogenesis and improving peripheral nerve function. Administrating a single factor has good therapeutic effect on diabetic peripheral neuropathy (DPN). However, the short half-life and rapid diffusion of growth factors under physiological conditions limits its clinical applications...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28538801/effects-of-hyperbaric-oxygen-and-nerve-growth-factor-on-the-long-term-neural-behavior-of-neonatal-rats-with-hypoxic-ischemic-brain-damage
#10
Lixia Wei, Qing Ren, Yongjun Zhang, Jiwen Wang
Purpose: To evaluate the effects of HBO (Hyperbaric oxygen) and NGF (Nerve growth factor) on the long-term neural behavior of neonatal rats with HIBD (Neonatal hypoxic ischemic brain damage). Methods: The HIBD model was produced by ligating the right common carotid artery of 7 days old SD (Sprague-Dawley) rats followed by 8% O2 + 92% N2 for 2h. Totally 40 rats were randomly divided into 5 groups including sham-operated group, HIBD control group, HBO treated group, NGF treated group and NGF + HBO treated group...
April 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28538681/human-thalamic-somatosensory-nucleus-ventral-caudal-vc-as-a-locus-for-stimulation-by-inputs-from-tactile-noxious-and-thermal-sensors-on-an-active-prosthesis
#11
REVIEW
Jui Hong Chien, Anna Korzeniewska, Luana Colloca, Claudia Campbell, Patrick Dougherty, Frederick Lenz
The forebrain somatic sensory locus for input from sensors on the surface of an active prosthesis is an important component of the Brain Machine Interface. We now review the neuronal responses to controlled cutaneous stimuli and the sensations produced by Threshold Stimulation at Microampere current levels (TMIS) in such a locus, the human thalamic Ventral Caudal nucleus (Vc). The responses of these neurons to tactile stimuli mirror those for the corresponding class of tactile mechanoreceptor fiber in the peripheral nerve, and TMIS can evoke sensations like those produced by the stimuli that optimally activate each class...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538207/association-of-serum-ninjurin2-levels-with-neurologic-damage-and-postherpetic-neuralgia-occurrence-an-observational-cohort-study-in-chinese-herpeszoster-patients
#12
Guozhuan Zhang, Yingjiao Sun, Lei Wang, Hui Tian, Lishuang Liang
OBJECTIVES: Postherpetic neuralgia(PHN) is the most common complication of herpeszoster (HZ) infection. The study aimed to explore whether serum Ninjurin2 (for nerve injury-induced protein 2, NINJ2), a novel neurologic damage related protein, is associated with nerve injury and the occurrence of PHN. RESULTS: Seventy-four of the eighty patients completed the study. On the 7th day of AHN, the patients had significantly higher values of NINJ2, cold-sense dispersion (ΔCS), warm-sense dispersion (ΔWS), cold-pain dispersion (ΔCP), heat-pain dispersion (ΔHP) and NRS score compared to controls...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28536920/clinicopathological-features-of-multiple-mononeuropathy-associated-with-systemic-lupus%C3%A2-erythematosus-a-multicenter-study
#13
Elodie Rivière, Fleur Cohen Aubart, Thierry Maisonobe, François Maurier, Christophe Richez, Bruno Gombert, Marie Gousseff, Daniel Adoue, Alexis Mathian, Miguel Hié, Julien Haroche, Zahir Amoura
Multiple mononeuropathy (MM) occurs rarely during systemic lupus erythematosus (SLE) but may lead to major disability. The aim of this study was to investigate the clinic-pathological presentations of MM during SLE, as well as long-term outcomes. We conducted a multicentric retrospective study that included patients receiving a diagnosis of MM during SLE. Ten patients were included (8 women and 2 men, median age at MM diagnosis: 40.4 years). SLE was diagnosed before MM in 9/10 patients (median time 8.2 years)...
May 23, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28535807/identification-of-putative-olfactory-g-protein-coupled-receptors-in-crown-of-thorns-starfish-acanthaster-planci
#14
Rebecca E Roberts, Cherie A Motti, Kenneth W Baughman, Noriyuki Satoh, Michael R Hall, Scott F Cummins
BACKGROUND: In marine organisms, and in particular for benthic invertebrates including echinoderms, olfaction is a dominant sense with chemosensation being a critical signalling process. Until recently natural product chemistry was the primary investigative approach to elucidate the nature of chemical signals but advances in genomics and transcriptomics over the last decade have facilitated breakthroughs in understanding not only the chemistry but also the molecular mechanisms underpinning chemosensation in aquatic environments...
May 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28535116/is-mannitol-the-treatment-of-choice-for-patients-with-ciguatera-fish-poisoning
#15
Michael E Mullins, Robert S Hoffman
CONTEXT: Ciguatera fish poisoning arises primarily from consumption of carnivorous reef fish caught in tropical and sub-tropical waters. Ciguatoxins, a class of tasteless, heat-stable, polycyclic toxins produced by dinoflagellates, accumulate through the food chain and concentrate in various carnivorous fish, such as groupers, barracudas, wrasses, amberjack, kingfishes, and eels. Characteristics of ciguatera fish poisoning include early nausea, vomiting, and diarrhea in the first one to two days post ingestion, followed by the appearance of sensory disturbances...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28534262/inflammatory-changes-in-paravertebral-sympathetic-ganglia-in-two-rat-pain-models
#16
Ai-Ling Li, Jing-Dong Zhang, Wenrui Xie, Judith A Strong, Jun-Ming Zhang
Injury to peripheral nerves can lead to neuropathic pain, along with well-studied effects on sensory neurons, including hyperexcitability, abnormal spontaneous activity, and neuroinflammation in the sensory ganglia. Neuropathic pain can be enhanced by sympathetic activity. Peripheral nerve injury may also damage sympathetic axons or expose them to an inflammatory environment. In this study, we examined the lumbar sympathetic ganglion responses to two rat pain models: ligation of the L5 spinal nerve, and local inflammation of the L5 dorsal root ganglion (DRG), which does not involve axotomy...
May 22, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28532913/the-subcostal-nerve-during-lateral-approaches-to-the-lumbar-spine-anatomic-study-with-relevance-for-injury-avoidance-and-postoperative-complications-such-as-abdominal-wall-hernia
#17
Fernando Alonso, Rachel Graham, Tarush Rustagi, Doniel Drazin, Marios Loukas, Rod J Oskouian, Jens R Chapman, R Shane Tubbs
INTRODUCTION: Lateral approaches to the spine have gained popularity. However, details of the innervation pattern of the abdominal oblique muscles with the initial dissection have not been well-studied. METHODS: Ten adult fresh-frozen cadavers (20 sides) were placed in the lateral position. On each side, the region where transpsoas approaches are performed, between the iliac crest and 12th rib, was dissected. The nerves, their course and muscular supply were studied...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28532657/mechanistic-link-between-diesel-exhaust-particles-and-respiratory-reflexes
#18
Ryan K Robinson, Mark A Birrell, John J Adcock, Michael A Wortley, Eric D Dubuis, Shu Chen, Catriona M McGilvery, Sheng Hu, Milo Sp Shaffer, Sara J Bonvini, Sarah A Maher, Ian S Mudway, Alexandra E Porter, Chris Carlsten, Teresa D Tetley, Maria G Belvisi
BACKGROUND: Diesel exhaust particles (DEP) are a major component of particulate matter in Europe's largest cities and epidemiological evidence links exposure with respiratory symptoms and asthma exacerbations. Respiratory reflexes are responsible for symptoms and are regulated by vagal afferent nerves which innervate the airway. It is not known how DEP exposure activates airway afferents to elicit symptoms such as cough and bronchospasm. OBJECTIVE: To identify the mechanisms involved in the activation of airway sensory afferents by DEPs...
May 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28530663/a-cerebellum-like-circuit-in-the-auditory-system-cancels-responses-to-self-generated-sounds
#19
Shobhit Singla, Conor Dempsey, Richard Warren, Armen G Enikolopov, Nathaniel B Sawtell
The dorsal cochlear nucleus (DCN) integrates auditory nerve input with a diverse array of sensory and motor signals processed in circuitry similar to that of the cerebellum. Yet how the DCN contributes to early auditory processing has been a longstanding puzzle. Using electrophysiological recordings in mice during licking behavior, we show that DCN neurons are largely unaffected by self-generated sounds while remaining sensitive to external acoustic stimuli. Recordings in deafened mice, together with neural activity manipulations, indicate that self-generated sounds are cancelled by non-auditory signals conveyed by mossy fibers...
May 22, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28530470/cd73-controls-extracellular-adenosine-generation-in-the-trigeminal-nociceptive-nerves
#20
X Liu, L Ma, S Zhang, Y Ren, R T Dirksen
Purinergic signaling is involved in pain generation and modulation in the nociceptive sensory nervous system. Adenosine triphosphate (ATP) induces pain via activation of ionotropic P2X receptors while adenosine mediates analgesia via activation of metabotropic P1 receptors. These purinergic signaling are determined by ecto-nucleotidases that control ATP degradation and adenosine generation. Using enzymatic histochemistry, we detected ecto-AMPase activity in dental pulp, trigeminal ganglia (TG) neurons, and their nerve fibers...
June 2017: Journal of Dental Research
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