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https://www.readbyqxmd.com/read/28424953/treatment-update-of-chronic-migraine
#1
REVIEW
Soo-Jin Cho, Tae-Jin Song, Min Kyung Chu
PURPOSE OF REVIEW: Although chronic migraine (CM) is a common disorder that severely impacts patient functioning and quality of life, it is usually underdiagnosed, and treatment responses often remain poor even after diagnosis. In addition, effective treatment options are limited due to the rarity of randomized controlled trials (RCTs) involving patients with CM. In the present review, we discuss updated pharmacological, non-pharmacological, and neurostimulation treatment options for CM...
June 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28424310/heart-rate-regulation-in-diving-sea-lions-the-vagus-nerve-rules
#2
REVIEW
Paul J Ponganis, Birgitte I McDonald, Michael S Tift, Cassondra L Williams
Recent publications have emphasized the potential generation of morbid cardiac arrhythmias secondary to autonomic conflict in diving marine mammals. Such conflict, as typified by cardiovascular responses to cold water immersion in humans, has been proposed to result from exercise-related activation of cardiac sympathetic fibers to increase heart rate, combined with depth-related changes in parasympathetic tone to decrease heart rate. After reviewing the marine mammal literature and evaluating heart rate profiles of diving California sea lions (Zalophus californianus), we present an alternative interpretation of heart rate regulation that de-emphasizes the concept of autonomic conflict and the risk of morbid arrhythmias in marine mammals...
April 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28421634/vagus-nerve-stimulation-a-new-promising-therapeutic-tool-in-inflammatory-bowel-disease
#3
B Bonaz, V Sinniger, S Pellissier
Inflammatory bowel disease (IBD), that is Crohn's disease (CD) and ulcerative colitis, affects about 1.5 million persons in the USA and 2.2 million in Europe. The pathophysiology of IBD involves immunological, genetic and environmental factors. The treatment is medico-surgical but suspensive. Anti-TNFα agents have revolutionized the treatment of IBD but have side effects. In addition, a non-negligible percentage of patients with IBD stop or take episodically their treatment. Consequently, a nondrug therapy targeting TNFα through a physiological pathway, devoid of major side effects and with a good cost-effectiveness ratio, would be of interest...
April 18, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28412531/vagus-nerve-is-involved-in-the-changes-in-body-temperature-induced-by-intragastric-administration-of-1-8-cineole-via-trpm8-in-mice
#4
Tomomi Urata, Noriyuki Mori, Tsutomu Fukuwatari
Transient Receptor Potential Melastatin 8 (TRPM8) is a cold receptor activated by mild cold temperature (<28°C). TRPM8 expressed in cutaneous sensory nerves is involved in cold sensation and thermoregulation. TRPM8 mRNA is detected in various tissues, including the gastrointestinal mucosa, and in the vagal afferent nerve. The relationship between vagal afferent nerve-specific expression of TRPM8 and thermoregulation remains unclear. In this study, we aimed to investigate whether TRPM8 expression in the vagal afferent nerve is involved in autonomic thermoregulation...
April 12, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28408809/assessment-of-effects-of-differences-in-trunk-posture-during-fowler-s-position-on-hemodynamics-and-cardiovascular-regulation-in-older-and-younger-subjects
#5
Satoshi Kubota, Yutaka Endo, Mitsue Kubota, Tomohiko Shigemasa
BACKGROUND: Downward shifts in blood volume with changing position generally cause tachycardic responses. Age-related decreases in vagal nerve activity could contribute to orthostatic hypotension in older individuals. Fowler's position is a reclined position with the back between 30° and 60°, used to facilitate breathing, eating, and other routine daily activities in frail and elderly patients. OBJECTIVE: This study examined whether stroke volume (SV) was higher and heart rate (HR) lower in Fowler's position with an upright upper trunk than in Fowler's position with the whole trunk upright in both older and younger subjects, based on the assumption that lower HR would result from reduced sympathetic activation in older individuals...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28407526/the-impact-of-antidepressants-on-seizure-frequency-and-depressive-and-anxiety-disorders-of-patients-with-epilepsy-is-it-worth-investigating
#6
Ramses Ribot, Bichun Ouyang, Andres M Kanner
PURPOSE: Depression and anxiety disorders in patients with epilepsy (PWE) remain under-recognized and under-treated, despite being the most common psychiatric co-morbidities. Selective serotonin re-uptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) are considered first-line treatment for primary depression and anxiety disorders. We performed this study to investigate if SSRIs and SNRIs could affect the seizure frequency of PWE and to assess whether such effect is independent of the response of the mood and anxiety disorders to these drugs...
April 10, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28404742/autonomic-nervous-system-activation-mediates-the-increase-in-whole-body-glucose-uptake-in-response-to-electroacupuncture
#7
Anna Benrick, Milana Kokosar, Min Hu, Martin Larsson, Manuel Maliqueo, Rodrigo Rodrigues Marcondes, Marzia Soligo, Virginia Protto, Elisabet Jerlhag, Antonina Sazonova, Carl Johan Behre, Kurt Højlund, Peter Thorén, Elisabet Stener-Victorin
A single bout of low-frequency electroacupuncture (EA) causing muscle contractions increases whole-body glucose uptake in insulin-resistant rats. We explored the underlying mechanism of this finding and whether it can be translated into clinical settings. Changes in glucose infusion rate (GIR) were measured by euglycemic-hyperinsulinemic clamp during and after 45 min of low-frequency EA in 21 overweight/obese women with polycystic ovary syndrome (PCOS) and 21 controls matched for age, weight, and body mass index (experiment 1) and in rats receiving autonomic receptor blockers (experiment 2)...
April 12, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28400500/differential-hemodynamic-and-respiratory-responses-to-right-and-left-cervical-vagal-nerve-stimulation-in-rats
#8
Harald M Stauss
Neuromodulation through vagal nerve stimulation (VNS) is currently explored for a variety of clinical conditions. However, there are no established VNS parameters for animal models of human diseases, such as hypertension. Therefore, the aim of this study was to assess hemodynamic and respiratory responses to right- or left-sided cervical VNS in a hypertensive rat model. Anesthetized stroke-prone spontaneously hypertensive rats were instrumented for arterial blood pressure and heart rate monitoring and left- or right-sided VNS Cervical VNS was applied through bipolar coil electrodes...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28395952/a-novel-methodology-for-assessing-laryngeal-and-vagus-nerve-integrity-in-patients-under-general-anesthesia
#9
Catherine F Sinclair, Maria J Téllez, Oscar R Tapia, Sedat Ulkatan, Vedran Deletis
OBJECTIVE: To describe a novel methodology for intraoperative neuro-monitoring of laryngeal and vagus nerves by utilizing the laryngeal adductor reflex (LAR). METHODS: Case series of 15 patients undergoing thyroid and cervical spine surgeries under total intravenous general anesthesia. Vocal fold mucosa was electrically stimulated to elicit a LAR using endotracheal tube based electrodes. Contralateral R1 (cR1) and R2 (cR2) responses were recorded using the endotracheal tube electrode contralateral to the simulating electrode...
March 14, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28392428/modulation-of-experimental-arthritis-by-vagal-sensory-and-central-brain-stimulation
#10
Gabriel Shimizu Bassi, Daniel Penteado Martins Dias, Marcelo Franchin, Jhimmy Talbot, Daniel Gustavo Reis, Gustavo Batista Menezes, Jaci Airton Castania, Norberto Garcia-Cairasco, Leonardo Barbosa Moraes Resstel, Helio Cesar Salgado, Fernando Queiróz Cunha, Thiago Mattar Cunha, Luis Ulloa, Alexandre Kanashiro
Articular inflammation is a major clinical burden in multiple inflammatory diseases, especially in rheumatoid arthritis. Biological anti-rheumatic drug therapies are expensive and increase the risk of systemic immunosuppression, infections, and malignancies. Here, we report that vagus nerve stimulation controls arthritic joint inflammation by inducing local regulation of innate immune response. Most of the previous studies of neuromodulation focused on vagal regulation of inflammation via the efferent peripheral pathway toward the viscera...
April 6, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28390806/the-vagal-nerve-stimulation-outcome-and-laryngeal-effect-otolaryngologists-roles-and-perspective
#11
Ahmad I Al Omari, Firas Q Alzoubi, Mohammad M Alsalem, Samah K Aburahma, Diala T Mardini, Paul F Castellanos
INTRODUCTION: Epilepsy is one of the most common neurologic disorders. Vagus nerve stimulation (VNS), first investigated in 1938 and subsequently studied as a potential therapy for epilepsy. The FDA approved the use of VNS in 1997 as an adjunctive non-pharmacologic symptomatic treatment option for refractory epilepsy for adults and adolescents over 12years. VNS can cause laryngeal and voice side effects that can be managed by otolaryngologists safely and effectively. OBJECTIVES: This study is to review the outcomes of vagal nerve stimulator (VNS) implantation in terms of the surgical procedures, complications, seizure frequency, and the clinical effect on larynx and vocal folds motion...
April 4, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28389989/single-vagus-nerve-stimulation-reduces-early-postprandial-c-peptide-levels-but-not-other-hormones-or-postprandial-metabolism
#12
M W Tang, F S van Nierop, F A Koopman, H M Eggink, D M Gerlag, M W Chan, R Zitnik, F M Vaz, J A Romijn, P P Tak, M R Soeters
A recent study in rheumatoid arthritis (RA) patients using electrical vagus nerve stimulation (VNS) to activate the inflammatory reflex has shown promising effects on disease activity. Innervation by the autonomic nerve system might be involved in the regulation of many endocrine and metabolic processes and could therefore theoretically lead to unwanted side effects. Possible effects of VNS on secretion of hormones are currently unknown. Therefore, we evaluated the effects of a single VNS on plasma levels of pituitary hormones and parameters of postprandial metabolism...
April 8, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28378238/the-current-state-of-intermittent-intraoperative-neural-monitoring-for-prevention-of-recurrent-laryngeal-nerve-injury-during-thyroidectomy-a-prisma-compliant-systematic-review-of-overlapping-meta-analyses
#13
REVIEW
Brandon Michael Henry, Matthew J Graves, Jens Vikse, Beatrice Sanna, Przemysław A Pękala, Jerzy A Walocha, Marcin Barczyński, Krzysztof A Tomaszewski
PURPOSE: Recurrent laryngeal nerve (RLN) injury is one of the most common and detrimental complications following thyroidectomy. Intermittent intraoperative nerve monitoring (I-IONM) has been proposed to reduce prevalence of RLN injury following thyroidectomy and has gained increasing acceptance in recent years. METHODS: A comprehensive database search was performed, and data from eligible meta-analyses meeting the inclusion criteria were extracted. Transient, permanent, and overall RLN injuries were the primary outcome measures...
April 4, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28349965/the-nicotinic-acetylcholine-receptor-%C3%AE-7-subunit-is-an-essential-negative-regulator-of-bone-mass
#14
Kazuaki Mito, Yuiko Sato, Tami Kobayashi, Kana Miyamoto, Eriko Nitta, Atsushi Iwama, Morio Matsumoto, Masaya Nakamura, Kazuki Sato, Takeshi Miyamoto
The nicotinic receptor α7nAchR reportedly regulates vagal nerve targets in brain and cardiac tissue. Here we show that nAchR7(-/-) mice exhibit increased bone mass due to decreased osteoclast formation, accompanied by elevated osteoprotegerin/RANKL ratios in serum. Vagotomy in wild-type mice also significantly increased the serum osteoprotegerin/RANKL ratio, and elevated bone mass seen in nAchR7(-/-) mice was reversed in α7nAchR/osteoprotegerin-doubly-deficient mice. α7nAchR loss significantly increased TNFα expression in Mac1-positive macrophages, and TNFα increased the osteoprotegerin/RANKL ratio in osteoblasts...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28349321/recurrent-laryngeal-nerve-monitoring-and-rocuronium-a-selective-sugammadex-reversal-protocol
#15
Ombeline Empis de Vendin, Denis Schmartz, Laurent Brunaud, Thomas Fuchs-Buder
BACKGROUND: The use of neuromuscular blocking agents may affect intraoperative neuromonitoring during thyroid surgery. A selective neuromuscular recovery protocol was evaluated in a retrospective cohort study during human thyroid neural monitoring surgery. METHODS: One hundred and twenty-five consecutive patients undergoing thyroidectomy with intraoperative neuromonitoring followed a selective neuromuscular block recovery protocol-single intubating dose of rocuronium followed by sugammadex if needed at the first vagal stimulation (V1)...
March 27, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28349097/vagal-afferent-activation-decreases-brown-adipose-tissue-bat-sympathetic-nerve-activity-and-bat-thermogenesis
#16
Christopher J Madden, Ellen Paula Santos da Conceicao, Shaun F Morrison
In urethane/α-chloralose anesthetized rats, electrical stimulation of cervical vagal afferent fibers inhibited the increases in brown adipose tissue sympathetic nerve activity and brown adipose tissue thermogenesis evoked by cold exposure, by nanoinjection of the GABAA receptor antagonist, bicuculline, in the dorsomedial hypothalamus, and by nanoinjection of N-methyl-D-aspartate in the rostral raphe pallidus. Vagus nerve stimulation-evoked inhibition of brown adipose tissue sympathetic nerve activity was prevented by blockade of ionotropic glutamate receptors in the termination site of vagal afferents in the nucleus of the solitary tract, and by nanoinjection of GABAA receptor antagonists in the rostral raphe pallidus...
2017: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/28344051/massive-biliary-dilation-after-roux-en-y-gastric-bypass-is-it-ampullary-achalasia
#17
Jeffrey L Ponsky, Noble Jones, John H Rodriguez, Matthew D Kroh, Andrew T Strong
BACKGROUND: This series of patients with a history of Roux-en-Y gastric bypass (RYGB) and cholecystectomy presented with symptoms consistent with obstructive biliary disease and massive biliary dilation of ≥15 mm, suggesting a structural cause. Findings from laparoscopic-assisted transgastric (TG) ERCP were a normal-appearing ampulla without structural lesions or stones, suggesting a functional cause instead. STUDY DESIGN: Patients who underwent TGERCP from January 2008 to October 2016 and had a surgical history of RYGB and cholecystectomy were identified from an institutional database...
March 24, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28344023/cardiac-vagal-control-in-a-knock-in-mouse-model-of-dilated-cardiomyopathy-with-a-troponin-mutation
#18
Dong-Yun Zhan, Cheng-Kun Du, Tsuyoshi Akiyama, Sachio Morimoto, Shuji Shimizu, Toru Kawada, Mikiyasu Shirai, James T Pearson
The aim of this study was to evaluate cardiac vagal nerve activity and identify the abnormality of cardiac vagal control in heart failure caused by dilated cardiomyopathy (DCM) using a knock-in mouse model with a ΔK210 mutation in the cardiac troponin T gene. The effects of electrical stimulation of the cervical vagal nerve at 5 and 10Hz (peripheral vagal control) and α2-adrennoceptor stimulation by intravenous medetomidine at 0.1mg/kg (central vagal control) were examined in wild-type (WT) mice and DCM mice...
March 16, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28337432/the-current-and-future-role-of-heart-rate-variability-for-assessing-and-training-compassion
#19
James N Kirby, James R Doty, Nicola Petrocchi, Paul Gilbert
The evolution of mammalian caregiving involving hormones, such as oxytocin, vasopressin, and the myelinated vagal nerve as part of the ventral parasympathetic system, enables humans to connect, co-regulate each other's emotions and create prosociality. Compassion-based interventions draw upon a number of specific exercises and strategies to stimulate these physiological processes and create conditions of "interpersonal safeness," thereby helping people engage with, alleviate, and prevent suffering. Hence, compassion-based approaches are connected with our evolved caring motivation and attachment and our general affiliative systems that help regulate distress...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28328743/acetylcholine-atropine-interactions-paradoxical-effects-on-atrial-fibrillation-inducibility
#20
Yu Liu, Benjamin J Scherlag, Youqi Fan, Wenfang Xia, He Huang, Sunny S Po
Atropine (ATr) is well known as a cholinergic antagonist, however, at low concentrations ATr could paradoxically accentuate the parasympathetic actions of acetylcholine (ACh). In 22 pentobarbital anesthetized dogs, via a left and right thoracotomy, a leak proof barrier was attached to isolate the atrial appendages (AAs) from the rest of the atria. In Group 1(Ach+ATr+Ach), ACh, 100 mM, was placed on the AA followed by the application of ATr, 2mg/cc. The average AFdur was 17±7 minutes. After ATr was applied to the AA and ACh again tested, the AFdur was markedly attenuated (2±2 minutes, p<0...
March 21, 2017: Journal of Cardiovascular Pharmacology
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