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Dysautonomia

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https://www.readbyqxmd.com/read/29131019/utility-of-autonomic-function-tests-to-differentiate-dementia-with-lewy-bodies-and-parkinson-disease-with-dementia-from-alzheimer-disease
#1
Shuta Toru, Tadashi Kanouchi, Takanori Yokota, Yosuke Yagi, Akira Machida, Takayoshi Kobayashi
OBJECTIVE: We studied autonomic disturbance in patients with dementia with Lewy bodies (DLB), Parkinson disease with dementia (PDD), Alzheimer disease (AD), to determine whether autonomic function tests can be used to distinguish these disorders. METHODS: Autonomic function was tested in 56 patients with DLB, 37 patients with PDD, and 59 patients with AD by using the sympathetic skin response, coefficient of variation in R-R interval, the head-up tilt test, serum norepinephrine concentration, and 123I-meta-iodobenzylguanidine cardiac scintigraphy...
November 13, 2017: European Neurology
https://www.readbyqxmd.com/read/29117739/cardiac-autonomic-denervation-and-expression-of-neurotrophins-ngf-and-bdnf-and-their-receptors-during-experimental-chagas-disease
#2
Natália Katley Oliveira, Rodrigo Novaes Ferreira, Sara Delaine Nogueira Lopes, Egler Chiari, Elizabeth Ribeiro da Silva Camargos, Patricia Massara Martinelli
Although cardiac dysautonomia is a distinctive feature of Chagas disease, its clinical and functional significance is still being speculated. Neurotrophic factors are potentially involved; however, studies of their effect in this infection are rare. Ultrastructural abnormalities in autonomic varicosities, levels of both nerve growth factor (NGF), and brain-derived neurotrophic factor (BDNF), as well as the expression of their receptors, were analysed in the heart of a rat model of Trypanosoma infection. Predominantly, at the early stage of the infection, cardiac autonomic varicosities displayed several signs of degeneration parallel to the elevation of cardiac levels of NGF, as well as expression of the receptors TrkA and p75NTR...
November 8, 2017: Growth Factors
https://www.readbyqxmd.com/read/29102669/acute-particulate-matter-affects-cardiovascular-autonomic-modulation-and-ifn-%C3%AE-methylation-in-healthy-volunteers
#3
Eleonora Tobaldini, Valentina Bollati, Marta Prado, Elisa M Fiorelli, Marica Pecis, Giorgio Bissolotti, Benedetta Albetti, Laura Cantone, Chiara Favero, Chiara Cogliati, Paolo Carrer, Andrea Baccarelli, Pier Alberto Bertazzi, Nicola Montano
AIMS: Air particulate matter (PM) is associated with increased cardiovascular morbidity and mortality. Altered autonomic functions play a key role in PM-induced cardiovascular disease. However, previous studies have not address the impact of PM on sympathetic and parasympathetic control of heart function, independently, and using controlled conditions, i.e., increasing titration of PM of known composition, in absence of other potential confounding factors. To fill this gap, here we used symbolic analysis that is capable of detecting non-mutual changes of the two autonomic branches, thus considering them as independent, and concentrations of PM as they could be measured at peak levels in Milan during a polluted winter day...
November 2, 2017: Environmental Research
https://www.readbyqxmd.com/read/29094812/validation-and-cross-cultural-adaptation-of-the-compass-31-in-croatian-and-serbian-patients-with-multiple-sclerosis
#4
Jelena Drulović, Anđela Gavrilović, Luka Crnošija, Darija Kisić-Tepavčević, Magdalena Krbot Skorić, Jovana Ivanović, Ivan Adamec, Irena Dujmović, Anamari Junaković, Gorica Marić, Vanja Martinović, Tatjana Pekmezović, Mario Habek
AIM: To validate and cross-culturally adapt Croatian and Serbian versions of composite autonomic symptom score-31 (COMPASS-31) for the detection of dysautonomia in patients with multiple sclerosis (MS). METHODS: A total of 179 patients, 67 with clinically isolated syndrome (CIS) and 112 with MS, completed the COMPASS-31 at two MS centers in Zagreb and Belgrade between April 1 and October 31, 2016. Demographic and clinical data including age, gender, MS phenotypes, and the Expanded Disability Status Scale (EDSS) score were collected...
October 31, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/29094055/effect-of-menstrual-cycle-on-acute-intermittent-porphyria
#5
V R Souza Júnior, V M V Lemos, I M L Feitosa, R Florencio, C W B Correia, L B Correia Fontes, M F Hazin Costa, M C B Correia
A 16-year-old female who was attended as an outpatient reported localized, acute abdominal pain with vomiting, symmetrical motor weakness, and burning sensation in both arms and legs. Her medical history showed irrational behavior, repeated admissions at the emergency units of many other reference hospitals, where she had been investigated for celiac disease and treated with analgesics for pain events. Her clinical condition remained unchanged despite the use of many oral analgesics. In those admissions, she showed dysautonomia, vomiting, and abdominal pain...
January 2017: Child neurology open
https://www.readbyqxmd.com/read/29066979/autonomic-dysfunction-in-wilson-s-disease-a-comprehensive-evaluation-during-a-3-year-follow-up
#6
Kai Li, Charlotte Lindauer, Rocco Haase, Heinz Rüdiger, Heinz Reichmann, Ulrike Reuner, Tjalf Ziemssen
Objectives: Wilson's disease is reported to have autonomic dysfunction, but comprehensive evaluation of autonomic function is lacking. Additionally, little is known about the change of autonomic function of Wilson's disease during continuous therapy. We assumed that patients with Wilson's disease had both sympathetic and parasympathetic autonomic impairments, and the autonomic dysfunction might be stable across a 3-year follow-up after years of optimal treatment. Methods: Twenty-six patients with Wilson's disease and twenty-six healthy controls were recruited...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29058121/multiple-system-atrophy-experimental-models-and-reality
#7
REVIEW
Cassia Overk, Edward Rockenstein, Elvira Valera, Nadia Stefanova, Gregor Wenning, Eliezer Masliah
Multiple system atrophy (MSA) is a rapidly progressing fatal synucleinopathy of the aging population characterized by parkinsonism, dysautonomia, and in some cases ataxia. Unlike other synucleinopathies, in this disorder the synaptic protein, α-synuclein (α-syn), predominantly accumulates in oligodendroglial cells (and to some extent in neurons), leading to maturation defects of oligodendrocytes, demyelination, and neurodegeneration. The mechanisms through which α-syn deposits occur in oligodendrocytes and neurons in MSA are not completely clear...
October 20, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/29057715/structural-and-functional-alterations-of-the-heart-in-parkinson-s-disease
#8
Jesús Piqueras-Flores, Ana López-García, Álvaro Moreno-Reig, Alicia González-Martínez, Amalia Hernández-González, Julia Vaamonde-Gamo, Alfonso Jurado-Román
Parkinson's disease (PD) patients have most frequently heart failure. The cause of this increased prevalence is not known. We designed a study to assess the cardiac function and cardiac structure in patients with PD compared to a control group. METHODS: Cross-sectional study with 50 PD patients and 50 healthy matched controls. We performed electro and echocardiograms to all patients and controls. The measurements were blind. In addition, we performed a neurological assessment. RESULTS: PD patients had higher left ventricular mass index (114...
October 23, 2017: Neurological Research
https://www.readbyqxmd.com/read/29055902/lgi1-caspr2-and-related-antibodies-a-molecular-evolution-of-the-phenotypes
#9
REVIEW
Sophie N M Binks, Christopher J Klein, Patrick Waters, Sean J Pittock, Sarosh R Irani
Recent biochemical observations have helped redefine antigenic components within the voltage-gated potassium channel (VGKC) complex. The related autoantibodies may be now divided into likely pathogenic entities, which target the extracellular domains of leucine-rich glioma-inactivated 1 (LGI1) and contactin-associated protein-like 2 (CASPR2), and species that target intracellular neuronal components and are likely non-pathogenic. This distinction has enhanced clinical practice as direct determination of LGI1 and CASPR2 antibodies offers optimal sensitivity and specificity...
October 21, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28991672/clinical-profiles-associated-with-lrrk2-and-gba-mutations-in-brazilians-with-parkinson-s-disease
#10
Camilla P da Silva, Gabriella de M Abreu, Pedro H Cabello Acero, Mário Campos, João S Pereira, Sarah R de A Ramos, Caroline M Nascimento, Danielle D Voigt, Ana Lucia Rosso, Marco A Araujo Leite, Luiz Felipe R Vasconcellos, Denise H Nicaretta, Marcus V Della Coletta, Delson José da Silva, Andressa P Gonçalves, Jussara M Dos Santos, Veluma Calassara, Débora Cristina T Valença, Cyro J de M Martins, Cíntia B Santos-Rebouças, Márcia M G Pimentel
BACKGROUND: Parkinson's disease (PD) is a neurodegenerative disorder characterized by remarkable phenotypic variability. Accumulated evidence points that the manifestation of PD clinical signs might be differentially modified by genetic factors, as mutations in LRRK2 and GBA genes. In this sense, the clarification of the genotype-phenotype correlations in PD has important implications in predicting prognosis and can contribute to the development of specific therapeutic approaches. METHODS: Here, we conducted the first comparative analysis of motor and non-motor features in 17 LRRK2 and 22 GBA mutation carriers and 93 non-carriers unrelated PD patients from Brazil, a highly admixed population...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28976233/a-review-of-drug-therapy-for-sporadic-fatal-insomnia
#11
Pardis Tabaee Damavandi, Martin T Dove, Richard W Pickersgill
BACKGROUND: Sporadic fatal insomnia (sFI) is a rapid progressive neurodegenerative disease characterised by gradual to perpetual insomnia, followed by dysautonomia, coma and death. (1) The cause of sFI was recently mapped to a mutation in a protein, the prion, found in the human brain. It is the unfolding of the prion that leads to the generation of toxic oligomers that destroy brain tissue and function. Recent studies have confirmed that a methionine mutation at codon 129 of the human Prion is characteristic of sFI...
September 3, 2017: Prion
https://www.readbyqxmd.com/read/28959482/sleep-apnoea-and-stroke
#12
REVIEW
Sameer Sharma, Antonio Culebras
Sleep disorders have been known to physicians for a long time. In his famous aphorisms, Hippocrates said "Sleep or watchfulness exceeding that which is customary, augurs unfavorably". Modern medicine has been able to disentangle some of the phenomena that disturb sleep. Among the most notable offenders is sleep apnoea that has gained prominence in the past few decades. It is being proposed as one of the potentially modifiable risk factors for vascular diseases including stroke. The pathological mechanisms linking sleep apnoea to vascular risk factors include hypoxia, cardiac arrhythmias, dysautonomia, impaired glucose tolerance, hypertension, dyslipidaemia and inflammation...
December 2016: Stroke and Vascular Neurology
https://www.readbyqxmd.com/read/28939940/non-motor-multiple-system-atrophy-associated-with-sudden-death-pathological-observations-of-autonomic-nuclei
#13
Yuichi Riku, Hirohisa Watanabe, Maya Mimuro, Yasushi Iwasaki, Mizuki Ito, Masahisa Katsuno, Gen Sobue, Mari Yoshida
Multiple system atrophy (MSA) manifests as a combination of dysautonomia and motor symptoms/signs. However, rare cases presenting with autonomic failures in absence of motor symptoms/signs until their deaths have been reported and are referred to as non-motor MSA. To clarify pathological findings underlying non-motor MSA patients, we analyzed consecutively autopsied 161 patients with MSA. In results, four patients were identified as having non-motor MSA, who showed isolated autonomic disorders throughout their lives and had minimal pathological changes in the motor systems...
November 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28906019/response-letter-to-optimising-physiology-for-adolescents-with-dysautonomia
#14
LETTER
K R Armstrong, A M De Souza, P L Sneddon, J E Potts, V E Claydon, S Sanatani
No abstract text is available yet for this article.
September 14, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28904566/is-vitamin-d-deficiency-implicated-in-autonomic-dysfunction
#15
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/28901332/prolonged-hypotension-associated-with-wernicke-s-encephalopathy
#16
H Maeda, A Kuriyama, T Tanaka
A diagnosis of Wernicke's encephalopathy (WE) is difficult. Transient hypotension has been reported as a rare complication of WE. We herein report a case of prolonged hypotension and dysuautonomia associated with WE in a 69-year-old man with underlying alcohol abuse. Without apparent etiology of shock, this patient remained hypotensive for 9 days, requiring a vasopressor, despite daily administration of thiamine 600 mg. Fluctuation of blood pressure caused by postural change and bradycardia in the presence of shock indicated that this patient had dysautonomia...
September 13, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28879885/anti-ganglioside-antibodies-profile-in-guillain-barr%C3%A3-syndrome-correlation-with-clinical-features-electrophysiological-pattern-and-outcome
#17
G Sivaram Naik, A Kanikannan Meena, B Ashok Kumar Reddy, Rukmini K Mridula, Shaik A Jabeen, Rupam Borgohain
BACKGROUND: Guillain-Barré syndrome (GBS) and its subtypes are associated with distinct anti-ganglioside antibodies. Hence, we aimed to determine the frequency of anti-ganglioside antibodies and its correlation with clinical features, electrophysiological patterns, and outcome in patients with GBS. MATERIAL AND METHODS: The data regarding clinical features, electrophysiological patterns, and outcome at 6 months were collected and analyzed from the case records of patients diagnosed with GBS during 2008-2013 at a tertiary care hospital in south India...
September 2017: Neurology India
https://www.readbyqxmd.com/read/28870420/value-of-protein-concentration-in-cerebrospinal-fluid-in-paediatric-patients-with-guillain-barre-syndrome
#18
Martha Esther Vidrio-Becerra, Jaime Valle-Leal, María Enriqueta Loaiza-Sarabia, Lucia Alvarez-Bastidas, Jesus Ignacio Lachica-Valle, Cruz Mónica López-Morales
INTRODUCTION AND OBJECTIVE: The albumin-cytologic dissociation in cerebrospinal fluid (CSF) supports the diagnosis of Guillain-Barre syndrome (GBS) but does not support the prognosis, so the aim of this study is to determine the usefulness of protein numbers in the CSF to predict progression in paediatric patients. PATIENTS AND METHODS: A diagnostic test was performed in paediatric patients with GBS, analysing sociodemographic, clinical and protein variables in CSF as well as electromyography...
September 1, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28827489/pyridoxine-toxicity-small-fiber-neuropathy-with-dysautonomia-a-case-report
#19
Rae Bacharach, Max Lowden, Aiesha Ahmed
Pyridoxine (vitamin B6) toxicity is a well-known cause of primary sensory, length-dependent, axonal polyneuropathy. Although sensory symptoms predominate, autonomic symptoms have also been reported in some cases. To date, there is no objective evidence of autonomic dysfunction reported in the literature. We present the case of a 41-year-old woman with 2 years of progressive burning pain, numbness, tingling, and weakness in a stocking-glove distribution who was found to have severe pyridoxine toxicity. Concurrent presence of large and small fiber nerve dysfunction was noted in the form of abnormal electromyography/nerve conduction study demonstrating a chronic sensory polyneuropathy and autonomic testing demonstrating abnormal responses to quantitative sweat testing and cardiovagal function testing...
September 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28800081/autonomic-dysfunction-after-mild-traumatic-brain-injury
#20
Dmitry Esterov, Brian D Greenwald
A mild traumatic brain injury (mTBI) is a complex pathophysiologic process that has a systemic effect on the body aside from solely an impairment in cognitive function. Dysfunction of the autonomic nervous system (ANS) has been found to induce abnormalities in organ systems throughout the body, and may contribute to cardiovascular dysregulation and increased mortality. Autonomic dysfunction, also known as dysautonomia, has been studied in moderate and severe TBI, and has emerged as a major contributing factor in the symptomatology in mTBI as well...
August 11, 2017: Brain Sciences
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