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https://www.readbyqxmd.com/read/27913968/post-ganglionic-autonomic-neuropathy-associated-with-anti-glutamic-acid-decarboxylase-antibodies
#1
E Fileccia, R Rinaldi, R Liguori, A Incensi, R D'Angelo, M P Giannoccaro, V Donadio
PURPOSE: Antibodies to glutamic acid decarboxylase (GAD-Abs) have been associated with several conditions, rarely involving the autonomic nervous system. Here, we describe two patients complaining of autonomic symptoms in whom a post-ganglionic autonomic neuropathy has been demonstrated in association with significantly elevated serum and CSF GAD-Abs levels. METHODS: Patients underwent nerve conduction studies, sympathetic skin response testing, evaluation of autonomic control of the cardiovascular system and skin biopsy...
December 2, 2016: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/27911674/cross-sectional-imaging-anatomy-and-pathologic-conditions-affecting-thoracic-nerves
#2
Kristopher W Cummings, Sreevathsan Sridhar, Matthew S Parsons, Cylen Javidan-Nejad, Sanjeev Bhalla
While in many cases they are not directly visualized, awareness of the thoracic nerves and their courses at cross-sectional imaging is important for radiologists. An understanding of the normal function of each nerve is important, as many patients present with neurologic signs and symptoms that can be used to reinforce search patterns for disease and detection of supportive radiologic abnormalities. In the case of primary neoplasms, understanding the expected presence of a nerve in the location of a mass can enhance and improve the accuracy of differential diagnoses...
December 2, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27910248/use-of-heart-rate-variability-and-photoplethysmograph-derived-parameters-as-assessment-signals-of-radiofrequency-therapy-efficacy-for-chronic-pain
#3
Jing-Jhao Ye, Chiung-Cheng Chuang, Yu-Ting Tai, Kuan-Ting Lee, Kuo-Sheng Hung
BACKGROUND: Radiofrequency therapy (RFT) generates molecular motion, and produces heat and electromagnetic effects on tissues, which attenuate pain sensation and thereby relieve pain. This study was to observe the altering trend of physiological parameters after RFT for chronic cervical or lumbar pain. METHODS: This study recruited 66 patients with chronic cervical or lumbar pain, and recorded their physiological parameters before and after RFT by using heart rate variability (HRV) and photoplethysmography (PPG) to explore the feasibility of RFT efficacy assessment...
December 2, 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/27908212/are-crh-ngf-as-psychoneuroimmune-regulators-in-women-with-polycystic-ovary-syndrome
#4
F Z Zangeneh, M M Naghizadeh, M Bagheri, M Jafarabadi
PURPOSE: Polycystic ovary syndrome (PCOS) affects quality of life and can worsen anxiety and depression either due to the features of PCOS or due to the diagnosis of a chronic disease. Corticotrophin-releasing hormone (CRH) and nerves growth factor (NGF) are the modulator for the actions of the sympathetic nervous and immune systems. METHODS: In total, 171 women divided into two groups: study and control groups. Serum CRH, NGF, and interleukins: IL-1α. IL-1β, 17A, and TNFα were determined by ELISA Kits in both groups...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27907040/the-role-of-reactive-oxygen-species-in-%C3%AE-adrenergic-signaling-in-cardiomyocytes-from-mice-with-the-metabolic-syndrome
#5
Monica Llano-Diez, Jon Sinclair, Takashi Yamada, Mei Zong, Jeremy Fauconnier, Shi-Jin Zhang, Abram Katz, Kent Jardemark, Håkan Westerblad, Daniel C Andersson, Johanna T Lanner
The metabolic syndrome is associated with prolonged stress and hyperactivity of the sympathetic nervous system and afflicted subjects are prone to develop cardiovascular disease. Under normal conditions, the cardiomyocyte response to acute β-adrenergic stimulation partly depends on increased production of reactive oxygen species (ROS). Here we investigated the interplay between beta-adrenergic signaling, ROS and cardiac contractility using freshly isolated cardiomyocytes and whole hearts from two mouse models with the metabolic syndrome (high-fat diet and ob/ob mice)...
2016: PloS One
https://www.readbyqxmd.com/read/27906840/renal-artery-denervation-for-treatment-of-patients-with-self-reported-obstructive-sleep-apnea-and-resistant-hypertension-results-from-the-global-symplicity-registry
#6
Dominik Linz, Giuseppe Mancia, Felix Mahfoud, Krzysztof Narkiewicz, Luis Ruilope, Markus Schlaich, Ingrid Kindermann, Roland E Schmieder, Sebastian Ewen, Bryan Williams, Michael Böhm
BACKGROUND: Sleep-disordered breathing, predominantly obstructive sleep apnea (OSA), is highly prevalent in patients with hypertension. OSA may underlie the progression to resistant hypertension, partly due to increased activation of the sympathetic nervous system. This analysis of patients with and without OSA evaluated the blood pressure (BP)-lowering effect of sympathetic modulation by renal denervation (RDN) in a real-world setting. METHODS: The Global SYMPLICITY Registry (NCT01534299) is a prospective, open-label, multicenter registry conducted worldwide to evaluate the safety and effectiveness of RDN in patients with uncontrolled hypertension...
January 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27906714/central-nervous-system-regulation-of-hepatic-lipid-and-lipoprotein-metabolism
#7
Jennifer Taher, Sarah Farr, Khosrow Adeli
PURPOSE OF REVIEW: Hepatic lipid and lipoprotein metabolism is an important determinant of fasting dyslipidemia and the development of fatty liver disease. Although endocrine factors like insulin have known effects on hepatic lipid homeostasis, emerging evidence also supports a regulatory role for the central nervous system (CNS) and neuronal networks. This review summarizes evidence implicating a bidirectional liver-brain axis in maintaining metabolic lipid homeostasis, and discusses clinical implications in insulin-resistant states...
November 30, 2016: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/27902931/human-presynaptic-receptors
#8
REVIEW
Eberhard Schlicker, Thomas Feuerstein
Presynaptic receptors are sites at which transmitters, locally formed mediators or hormones inhibit or facilitate the release of a given transmitter from its axon terminals. The interest in the identification of presynaptic receptors has faded in recent years and it may therefore be justified to give an overview of their occurrence in the autonomic and central nervous system; this review will focus on presynaptic receptors in human tissues. Autoreceptors are presynaptic receptors at which a given transmitter restrains its further release, though in some instances may also increase its release...
November 27, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27900416/-intensive-care-treatment-after-aneurysmal-subarachnoid-hemorrhage
#9
U Jaschinski
Aneurysmal subarachnoid hemorrhage (SAH) is a devastating disease and nearly one third of patients die in the acute phase. Due to the bleeding event, a hyperactive sympathetic nervous system and an uncontrolled inflammatory response have a profound local and systemic impact on other organ functions. Neuroendocrinological disorders and cardiopulmonary morbidity are dominant. Despite a decrease in hospital mortality for high volume centers, a high proportion of survivors suffer from neurological deficits. Knowledge of the pathophysiology of vasospasms in the later stages of the disease has increased...
November 29, 2016: Der Anaesthesist
https://www.readbyqxmd.com/read/27899893/raynaud-s-phenomenon-a-brief-review-of-the-underlying-mechanisms
#10
REVIEW
Manal M Fardoun, Joseph Nassif, Khodr Issa, Elias Baydoun, Ali H Eid
Raynaud's phenomenon (RP) is characterized by exaggerated cold-induced vasoconstriction. This augmented vasoconstriction occurs by virtue of a reflex response to cooling via the sympathetic nervous system as well as by local activation of α2C adrenoceptors (α2C-AR). In a cold-initiated, mitochondrion-mediated mechanism involving reactive oxygen species and the Rho/ROCK pathway, cytoskeletal rearrangement in vascular smooth muscle cells orchestrates the translocation of α2C-AR to the cell membrane, where this receptor readily interacts with its ligand...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27899087/paradoxical-physiological-responses-to-propranolol-in-a-rett-syndrome-patient-a-case-report
#11
P J Santosh, L Bell, K Lievesley, J Singh, F Fiori
BACKGROUND: Rett Syndrome (RTT), caused by a loss-of-function in the epigenetic modulator: X-linked methyl-CpG binding protein 2 (MeCP2), is a pervasive neurological disorder characterized by compromised brain functions, anxiety, severe mental retardation, language and learning disabilities, repetitive stereotyped hand movements and developmental regression. An imbalance in the sympathetic and the parasympathetic nervous system (dysautonomia) and the resulting autonomic storms is a frequent occurrence in patients with RTT...
November 29, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27899046/chili-pepper-as-a-body-weight-loss-food
#12
Sharon Varghese, Peter Kubatka, Luis Rodrigo, Katarina Gazdikova, Martin Caprnda, Julia Fedotova, Anthony Zulli, Peter Kruzliak, Dietrich Büsselberg
Chili has culinary as well as medical importance. Studies in humans, using a wide range of doses of chili intake (varying from a single meal to a continuous uptake for up to 12 weeks), concluded that it facilitates weight loss. In regard to this, the main targets of chili are fat metabolism, energy expenditure, and thermogenesis. To induce weight loss, the active substance of chili, capsaicin, activates Transient Receptor Potential Cation Channel sub-family V member 1 (TRPV1) channels) receptors causing an increase in intracellular calcium levels and triggering the sympathetic nervous system...
November 29, 2016: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/27898646/iodine-123-metaiodobenzylguanidine-scintigraphy-for-the-assessment-of-cardiac-sympathetic-innervation-and-the-relationship-with-cardiac-autonomic-function-in-healthy-adults-using-standardized-methods
#13
Omar Asghar, Parthiban Arumugam, Ian Armstrong, Simon Ray, Matthias Schmitt, Rayaz A Malik
BACKGROUND: Global iodine-123 metaiodobenzylguanidine (I-MIBG) uptake is predictive of cardiovascular events and mortality in patients with heart failure. Normal variations in global and regional uptake, however, are not well defined and few studies have addressed the functional relevance of I-MIBG uptake and distribution in healthy individuals. MATERIALS AND METHODS: We performed I-MIBG scintigraphy and cardiac autonomic function testing using the standardized methodology in 15 healthy individuals (mean age 54...
January 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/27898588/the-gut-peptide-neuropeptide-y-and-post-traumatic-stress-disorder
#14
Ann M Rasmusson
PURPOSE OF REVIEW: This article reviews the role of neuropeptide Y (NPY) in the pathophysiology of post-traumatic stress disorder (PTSD) and gastrointestinal disorders such as irritable bowel syndrome (IBS) with which PTSD is highly comorbid. NPY is low in the cerebrospinal fluid and plasma of male combat veterans with PTSD and correlates negatively with sympathetic nervous system (SNS) hyperreactivity, PTSD symptoms and time to recovery. NPY regulation has not yet been evaluated in women with PTSD...
November 24, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27895475/transcranial-direct-current-stimulation-improves-the-qt-variability-index-and-autonomic-cardiac-control-in-healthy-subjects-older-than-60-years
#15
Gianfranco Piccirillo, Cristina Ottaviani, Claudia Fiorucci, Nicola Petrocchi, Federica Moscucci, Claudia Di Iorio, Fabiola Mastropietri, Ilaria Parrotta, Matteo Pascucci, Damiano Magrì
BACKGROUND: Noninvasive brain stimulation technique is an interesting tool to investigate the causal relation between cortical functioning and autonomic nervous system (ANS) responses. OBJECTIVE: The objective of this report is to evaluate whether anodal transcranial direct current stimulation (tDCS) over the temporal cortex influences short-period temporal ventricular repolarization dispersion and cardiovascular ANS control in elderly subjects. SUBJECTS AND METHODS: In 50 healthy subjects (29 subjects younger than 60 years and 21 subjects older than 60 years) matched for gender, short-period RR and systolic blood pressure spectral variability, QT variability index (QTVI), and noninvasive hemodynamic data were obtained during anodal tDCS or sham stimulation...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27892684/angiotensin-receptor-neprilysin-inhibitor-lcz696-pharmacology-pharmacokinetics-and-clinical-development
#16
Yue Hua, Ian Wang, Bin Liu, Darren J Kelly, Christopher Reid, Danny Liew, Yingchun Zhou, Bing H Wang
Heart failure still has a significant disease burden with poor outcomes worldwide despite advances in therapy. The standard therapies have been focused on blockade of renin-angiotensin-aldosterone system with angiotensin-converting enzyme inhibitors, angiotensin receptor blockers and mineralocorticoid antagonists and the sympathetic nervous system with β-blockers. The natriuretic peptide system is a potential counter-regulatory system that promotes vasodilatation and natriuresis. Angiotensin receptor neprilysin inhibitors are a new class drug capable of blocking the renin-angiotensin-aldosterone system and enhancing the natriuretic peptide system to improve neurohormonal balance...
November 28, 2016: Future Cardiology
https://www.readbyqxmd.com/read/27891612/neurovascular-mechanisms-underlying-augmented-cold-induced-reflex-cutaneous-vasoconstriction-in-human-hypertension
#17
Jody L Greaney, W Larry Kenney, Lacy M Alexander
Despite ample evidence of dysregulated sympathetic control of the peripheral vasculature in hypertension, no studies have examined integrated neurovascular function during cold stress in hypertensive adults (HTN). We hypothesized that (1) whole-body cooling would elicit greater cutaneous vasoconstriction and greater increases in skin sympathetic nervous system activity (SSNA) in HTN (n = 14; 56 ± 2 yrs) compared to age-matched normotensive adults (NTN; n = 14; 55 ± 2 yrs) and (2) augmented reflex vasoconstriction in HTN would be mediated by an increase in cutaneous vascular adrenergic sensitivity and a greater contribution of non-adrenergic sympathetic co-transmitters...
November 28, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27890578/adult-complex-regional-pain-syndrome-type-i-a-narrative-review
#18
REVIEW
Martino Bussa, Adriana Mascaro, Lorena Cuffaro, Simona Rinaldi
Complex regional pain syndrome type I (CRPS I) is a multifactorial painful disorder with a complex pathogenesis. Both peripheral and central mechanisms are involved. Acute CRPS I is considered an exaggerated inflammatory disorder but over time, because of altered function of the sympathetic nervous system, and maladaptive neuroplasticity, CRPS I evolves into a neurological disorder. This review thoroughly describes the pathophysiological aspects of CRPS I and summarizes the potential therapeutic options. The mechanisms and targets of the treatment are different in the early and late stages of the disease...
November 23, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27885251/postprandial-and-orthostatic-hypotension-treated-by-sitagliptin-in-a-patient-with-dementia-with-lewy-bodies
#19
Yoshihiro Saito, Joji Ishikawa, Kazumasa Harada
BACKGROUND Postprandial hypotension, induced by an absorption of glucose from intestine, could be treated by acarbose; however, it was unclear whether dipeptidyl peptidase-4 inhibitor reduced postprandial hypotension. CASE REPORT A 78-year-old woman who had experienced episodes of dizziness and hypotension after eating was admitted to our hospital. During 24-hour ambulatory blood pressure monitoring, there were repeated episodes of marked postprandial hypotension; i.e., a significant systolic blood pressure reduction within two hours after eating (from -58 to -64 mm Hg after meals)...
November 25, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27881398/separate-and-shared-sympathetic-outflow-to-white-and-brown-fat-coordinately-regulate-thermoregulation-and-beige-adipocyte-recruitment
#20
Ngoc Ly T Nguyen, Candace L Barr, Vitaly Ryu, Qiang Cao, Bingzhong Xue, Timothy J Bartness
White adipose tissue (WAT) and brown adipose tissue (BAT) are innervated and regulated by the sympathetic nervous system (SNS). It is not clear, however, whether there are shared or separate central SNS outflows to WAT and BAT that regulate their function. We injected two isogenic strains of pseudorabies virus, a retrograde transneuronal viral tract tracer, with unique fluorescent reporters into interscapular BAT (IBAT) and inguinal WAT (IWAT) of the same Siberian hamsters to define SNS pathways to both. To test the functional importance of SNS coordinated control of BAT and WAT, we exposed hamsters with denervated SNS nerves to IBAT to 4°C for 16-24 hours, and measured core and fat temperatures, and norepinephrine turnover (NETO) and uncoupling protein 1 (UCP1) expression in fat tissues...
November 23, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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