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https://www.readbyqxmd.com/read/28928157/alteration-of-cholinergic-anti-inflammatory-pathway-in-rat-with-ischemic-cardiomyopathy-modified-electrophysiological-function-of-heart
#1
Shu-Jie Wu, Yue-Chun Li, Zhe-Wei Shi, Zhong-Hao Lin, Zhi-Heng Rao, Si-Chao Tai, Mao-Ping Chu, Lei Li, Jia-Feng Lin
BACKGROUND: With chronic ischemia after myocardial infarction, the resulting scar tissue result in electrical and structural remodeling vulnerable to an arrhythmogenic substrate. The cholinergic anti-inflammatory pathway elicited by vagal nerve via α7 nicotinic acetylcholine receptors (α7-nAChR) can modulate local and systemic inflammatory responses. Here, we aimed to clarify a novel mechanism for the antiarrhythmogenic properties of vagal nerve during the ischemic cardiomyopathy (ICM)...
September 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28926474/parasympathetic-activation-enhanced-by-slow-respiration-modulates-early-auditory-sensory-gating
#2
Atsushi Aoyama, Yu Shimura, Takao Ohmuta, Yohei Nomoto, Masashi Kawasumi
Sensory gating is a preattentional mechanism to filter irrelevant information from the environment. It is typically reflected as a suppression of the event-related P50 component for successive sounds in the auditory modality. Although stress-induced sympathetic activation has been reported to disrupt P50 suppression, little is known about the modulatory effect of parasympathetic activation on early auditory sensory gating. We determined the parasympathetic effect on the magnetic P50 (P50m) suppression by controlling the respiratory rhythm and recording data simultaneously with magnetoencephalography and electrocardiography, using three successive click sounds as stimulus and ten normal individuals as study participants...
September 18, 2017: Neuroreport
https://www.readbyqxmd.com/read/28922171/pancreatic-polypeptide-in-parkinson-s-disease-a-potential-marker-of-parasympathetic-denervation
#3
Karoline Knudsen, Bolette Hartmann, Tatyana D Fedorova, Karen Østergaard, Klaus Krogh, Niels Møller, Jens J Holst, Per Borghammer
BACKGROUND AND OBJECTIVES: Parkinson's disease (PD) patients experience several non-motor symptoms from the gastrointestinal tract that may partly be caused by parasympathetic deficiency. The pancreas is densely innervated by the vagus nerve, which mediates early meal-induced secretion of pancreatic polypeptide (PP). Early secretion after sham feeding has been validated as a marker of vagal integrity. Thus, the aim was to evaluate the ratio of increased PP plasma levels after sham feeding in PD and correlate findings with gastrointestinal transit time (GITT)...
September 11, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28920040/parasympathetic-cholinergic-and-neuropeptide-mechanisms-of-migraine
#4
REVIEW
Nikita Mikhailov, Oleg V Mamontov, Alexei A Kamshilin, Rashid Giniatullin
CONTEXT: Migraine mechanisms remain largely uncovered for various reasons including a very high complexity of the neurophysiological mechanisms implicated in this disorder and a plethora of endogenous biologically active compounds involved in the pathological process. The functional role of parasympathetic innervation of meninges and cholinergic mechanisms of migraine are among little explored issues despite multiple evidence indirectly indicating the role of acetylcholine (ACh) and its analogues in migraine and other types of headache...
February 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28919378/sudden-death-mechanisms-in-non-ischemic-cardiomyopathies-insights-gleaned-from-clinical-implantable-cardioverter-defibrillator-trials
#5
Benjamin A Steinberg, Siva K Mulpuru, James C Fang, Bernard J Gersh
Sudden cardiac death (SCD) represents a major cause of death among patients with heart failure. While scar-based, macro-reentrant ventricular tachycardia and ventricular fibrillation (VT/VF) is the primary etiology for SCD among patients with ischemic cardiomyopathy, a more diverse set of mechanisms and substrates are likely at play for the diverse group of patients characterized by non-ischemic, dilated cardiomyopathy (NICM). These causes may include scar-based re-entry, but also neurohormonal stimulation (sympathetic, parasympathetic, renin-angiotensin-aldosterone), inflammation, and non-arrhythmic processes occurring in the context of a genetic predisposition...
September 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28916152/effects-of-inspiratory-muscle-training-on-cardiovascular-autonomic-control-a-systematic-review
#6
REVIEW
Raphael Martins de Abreu, Patrícia Rehder-Santos, Vinicius Minatel, Gabriela Lopes Dos Santos, Aparecida Maria Catai
PURPOSE: To carry out a systematic review to determine if inspiratory muscle training (IMT) promotes changes in cardiovascular autonomic responses in humans. METHODS: The methodology followed the PRISMA statement for reporting systematic review analysis. MEDLINE, PEDro, SCOPUS and PubMed electronic databases were searched from the inception to March 2017. The quality assessment was performed using a PEDro scale. The articles were included if: (1) primary objective was related to the effects of IMT on the cardiovascular autonomic nervous system, and (2) randomized clinical trials and quasi-experimental studies...
September 7, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28915915/nocturnal-heart-rate-variability-in-1-year-old-infants-analyzed-by-using-the-least-square-cosine-spectrum-method
#7
Yuko Kochiya, Akari Hirabayashi, Yuhei Ichimaru
BACKGROUND: To evaluate the dynamic nature of nocturnal heart rate variability, RR intervals recorded with a wearable heart rate sensor were analyzed using the Least Square Cosine Spectrum Method. METHODS: Six 1-year-old infants participated in the study. A wearable heart rate sensor was placed on their chest to measure RR intervals and 3-axis acceleration. Heartbeat time series were analyzed for every 30 s using the Least Square Cosine Spectrum Method, and an original parameter to quantify the regularity of respiratory-related heart rate rhythm was extracted and referred to as "RA (RA-COSPEC: Respiratory Area obtained by COSPEC)...
September 16, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28913500/neuroendocrine-stress-response-implications-for-cardiac-surgery-associated-acute-kidney-injury
#8
REVIEW
J Mauricio Del Rio, Alina Nicoara, Madhav Swaminathan
Surgical stress causes biochemical and physiologic perturbations of every homeostatic axis. These alterations include volume/baroreceptor regulation, sympathetic activation, parasympathetic suppression, neuroendocrine activation, acute phase response protein synthesis and secretion, immune response modulation and long-term behavioral adaptation. The kidney is central to the stress response because of its main role in the maintenance of water, electrolyte balance and hence, intracellular and extracellular compartments, including the intravascular volume...
April 2017: Rom J Anaesth Intensive Care
https://www.readbyqxmd.com/read/28912251/neuro-immune-interaction-and-the-regulation-of-intestinal-immune-homeostasis
#9
Simon Verheijden, Guy E Boeckxstaens
Many essential gastrointestinal functions, including motility, secretion and blood flow are regulated by the autonomic nervous system (ANS), both through intrinsic enteric neurons and extrinsic (sympathetic and parasympathetic) innervation. Recently identified neuro-immune mechanisms, in particular the interplay between enteric neurons and muscularis macrophages, are now considered to be essential for fine-tuning peristalsis. These findings shed new light on how intestinal immune cells can support enteric nervous function...
September 14, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28911874/childhood-adversity-predicts-reduced-physiological-flexibility-during-the-processing-of-negative-affect-among-adolescents-with-major-depression-histories
#10
Shimrit Daches, Maria Kovacs, Charles George, Ilya Yaroslavsky, Eniko Kiss, Agnes Vetro, Roberta Dochnal, István Benak, Ildikó Baji, Kitti Halas, Attila Makai, Krisztina Kapornai, Jonathan Rottenberg
BACKGROUND: Adversity during early development has been shown to have enduring negative physiological consequences. In turn, atypical physiological functioning has been associated with maladaptive processing of negative affect, including its regulation. The present study therefore explored whether exposure to adverse life events in childhood predicted maladaptive (less flexible) parasympathetic nervous system functioning during the processing of negative affect among adolescents with depression histories...
September 11, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28904566/is-vitamin-d-deficiency-implicated-in-autonomic-dysfunction
#11
REVIEW
Rozina Wadhwania
Dysautonomia, dysfunction of the autonomic nervous system, presents with heterogeneous clinical features from an imbalanced regulation of the sympathetic and parasympathetic nervous systems. Low Vitamin D levels can explain the heterogeneous clinical features of migraine headaches, cardiac and gastrointestinal dysfunction, and oxidative stress evident in dysautonomia patients. The role of Vitamin D in modulating pain sensitivity has been recently established. However, there is a lack of research and understanding regarding the association between Vitamin D deficiency and autonomic dysfunction...
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28895408/sympathetic-and-parasympathetic-innervation-in-hepatocellular-carcinoma
#12
L Zhang, L L Wu, H B Huan, X J Chen, X D Wen, D P Yang, F Xia
Autonomic nervous system plays an important role in the development of multiple cancers via regulating cancer cell proliferation, differentiation, apoptosis, migration and invasion. However, no detailed studies have been performed to study the role of autonomic nerve fibers in hepatocellular carcinoma (HCC) as well as its correlation with the progression of HCC. Here, we examined the distribution of the autonomic nerve fibers and analyzed the correlation between autonomic nerve fibers and the pathological characteristics of HCC patients...
September 12, 2017: Neoplasma
https://www.readbyqxmd.com/read/28886662/comment-on-relationship-between-serum-levels-of-vip-but-not-of-cgrp-and-cranial-autonomic-parasympathetic-symptoms-a-study-in-chronic-migraine-patients
#13
Hyun Jin Min, Kyung Soo Kim
No abstract text is available yet for this article.
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28883882/effects-of-combined-far-infrared-radiation-and-acupuncture-at-st36-on-peripheral-blood-perfusion-and-autonomic-activities
#14
Cheng-Chan Yang, Gen-Min Lin, Jen-Hung Wang, Hsiao-Chiang Chu, Hsien-Tsai Wu, Jian-Jung Chen, Cheuk-Kwan Sun
Using four-channel photoplethysmography (PPG) for acquiring peripheral arterial waveforms, this study investigated vascular and autonomic impacts of combined acupuncture-far infrared radiation (FIR) in improving peripheral circulation. Twenty healthy young adults aged 25.5 ± 4.6 were enrolled for 30-minute measurement. Each subject underwent four treatment strategies, including acupuncture at ST36 (Zusanli), pseudoacupuncture, FIR, and combined acupuncture-FIR at different time points. Response was assessed at 5-minute intervals...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28877510/heart-rate-variability-modifications-induced-by-high-doses-of-incobotulinumtoxina-and-onabotulinumtoxina-in-hemiplegic-chronic-stroke-patients-a-single-blind-randomized-controlled-crossover-pilot-study
#15
Alessio Baricich, Elisa Grana, Stefano Carda, Andrea Santamato, Claudio Molinari, Carlo Cisari, Marco Invernizzi
BACKGROUND: Botulinum toxin type A is a valid and safe treatment for focal spasticity, with documented effects on both sympathetic and parasympathetic systems. Heart rate variability can provide detailed information about the control of the autonomic nervous system on cardiovascular activities. Previous studies in literature showed no significant changes in Heart Rate Variability with doses >600 U of incobotulinumtoxinA in chronic post stroke spastic patients; however, at present time, these results have not been confirmed with doses >600 U of onabotulinumtoxinA...
September 4, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28875352/specificity-of-reward-sensitivity-and-parasympathetic-based-regulation-among-children-with-attention-deficit-hyperactivity-and-disruptive-behavior-disorders
#16
Rachel B Tenenbaum, Erica D Musser, Joseph S Raiker, Erika K Coles, Elizabeth M Gnagy, William E Pelham
Attention-deficit/hyperactivity disorder (ADHD) is associated with disruptionsin reward sensitivity and regulatory processes. However, it is unclear whether thesedisruptions are better explained by comorbid disruptive behavior disorder (DBD)symptomology. This study sought to examine this question using multiple levels ofanalysis (i.e., behavior, autonomic reactivity). One hundred seventeen children (aged 6 to 12 years; 72.6% male; 69 with ADHD) completed theBalloon-Analogue Risk Task (BART) to assess external reward sensitivity behaviorally...
September 6, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28874060/reiki-is-better-than-placebo-and-has-broad-potential-as-a-complementary-health-therapy
#17
David E McManus
This study reviews the available clinical studies of Reiki to determine whether there is evidence for Reiki providing more than just a placebo effect. The available English-language literature of Reiki was reviewed, specifically for peer-reviewed clinical studies with more than 20 participants in the Reiki treatment arm, controlling for a placebo effect. Of the 13 suitable studies, 8 demonstrated Reiki being more effective than placebo, 4 found no difference but had questionable statistical resolving power, and only one provided clear evidence for not providing benefit...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28872600/effects-of-visual-stimulation-with-bonsai-trees-on-adult-male-patients-with-spinal-cord-injury
#18
Hiroko Ochiai, Chorong Song, Harumi Ikei, Michiko Imai, Yoshifumi Miyazaki
Nature therapy has been demonstrated to induce physiological relaxation. The psychophysiological effects of nature therapy (stimulation with bonsai trees) on adult male patients with spinal cord injury (SCI) were examined. Oxyhemoglobin concentration changes in the prefrontal cortex were measured using near-infrared spectroscopy, and heart rate variability was analyzed. Psychological responses were evaluated using the modified semantic differential method and Profile of Mood States (POMS) subscale scores. Visual stimulation of adult male patients with SCI elicited significantly decreased left prefrontal cortex activity, increased parasympathetic nervous activity, decreased sympathetic nervous activity, increased positive feelings, and resulted in lower negative POMS subscale scores...
September 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28864843/pupillary-autonomic-dysfunction-in-patients-with-anca-associated-vasculitis
#19
Philipp Moog, O Eren, S Kossegg, K Valda, A Straube, M Grünke, H Schulze-Koops, M Witt
OBJECTIVE: To assess autonomic function by infrared dynamic pupillometry in patients with ANCA-vasculitis (AAV) in correlation to autonomic symptoms, disease specific clinical parameters and cardiovascular reflex tests. METHODS: Patients with AAV and healthy controls underwent pupillometry at rest and after sympathetic stimulation (cold pressor test). Three parasympathetic parameters (amplitude, relative amplitude, maximum constriction velocity) and one sympathetic parameter (late dilatation velocity) were assessed...
September 1, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28862330/defining-the-neural-fulcrum-for-chronic-vagus-nerve-stimulation-implications-for-integrated-cardiac-control
#20
Jeffrey L Ardell, Heath Nier, Mathew Hammer, E Marie Southerland, Christopher L Ardell, Eric Beaumont, Bruce H KenKnight, J Andrew Armour
BACKGROUND: Vagus nerve stimulation (VNS) is an emerging therapy for treatment of chronic heart failure and remains a standard of therapy in patients with treatment-resistant epilepsy. OBJECTIVE: To characterize heart rate (HR) responses (HRR) during the active phase of chronic VNS over a wide range of stimulation parameters in order to define optimal protocols for bidirectional bioelectronic control of the heart. METHODS: In normal canines, bipolar electrodes were chronically implanted on the cervical vagosympathetic trunk bilaterally with anode cephalad to cathode (n = 8, "cardiac" configuration) or with electrode positions reversed (n = 8, "epilepsy" configuration)...
September 1, 2017: Journal of Physiology
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