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Sympathetic skin response

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https://www.readbyqxmd.com/read/28077329/body-schema-plasticity-after-stroke-subjective-and-neurophysiological-correlates-of-the-rubber-hand-illusion
#1
Roberto Llorens, Adrián Borrego, Priscila Palomo, Ausiàs Cebolla, Enrique Noé, Sergi Bermúdez I Badia, Rosa Baños
Stroke can lead to motor impairments that can affect the body structure and restraint mobility. We hypothesize that brain lesions and their motor sequelae can distort the body schema, a sensorimotor map of body parts and elements in the peripersonal space through which human beings embody the reachable space and ready the body for forthcoming movements. Two main constructs have been identified in the embodiment mechanism: body-ownership, the sense that the body that one inhabits is his/her own, and agency, the sense that one can move and control his/her body...
January 8, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28065363/relationship-between-amyloid-precursor-protein-in-seminal-plasma-and-abnormal-penile-sympathetic-skin-response-in-lifelong-premature-ejaculation
#2
Zhiwei Hong, Yuming Feng, Hualong Ding, Xuechun Hu, Jin-Chun Lu, Xie Ge, Yifeng Ge, Bing Yao
INTRODUCTION: Hyperactivity of the sympathetic nervous system can play an important role in lifelong premature ejaculation (PE). Our previous study found that amyloid precursor protein (APP) levels in seminal plasma of patients with PE were clearly increased. Amyloid-β (Aβ) is derived from APP. Excessive Aβ, especially Aβ42, can cause neuronal dysfunction. AIM: To determine whether APP and Aβ42 are associated with an abnormal penile sympathetic skin response (PSSR)...
January 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28043810/renal-sympathetic-nerve-blood-flow-and-epithelial-transport-responses-to-thermal-stress
#3
REVIEW
Thad E Wilson
Thermal stress is a profound sympathetic stress in humans; kidney responses involve altered renal sympathetic nerve activity (RSNA), renal blood flow, and renal epithelial transport. During mild cold stress, RSNA spectral power but not total activity is altered, renal blood flow is maintained or decreased, and epithelial transport is altered consistent with a sympathetic stress coupled with central volume loaded state. Hypothermia decreases RSNA, renal blood flow, and epithelial transport. During mild heat stress, RSNA is increased, renal blood flow is decreased, and epithelial transport is increased consistent with a sympathetic stress coupled with a central volume unloaded state...
December 24, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28025409/a-case-of-acute-autonomic-and-sensory-neuropathy-aasn-with-antibody-against-a-mixture-of-galactocerebroside-and-phospholipids
#4
Teruyuki Ishikura, Kazushiro Takata, Makoto Kinoshita, Kei Fukada, Jinichi Sawada, Takanori Hazama
A 62-year-old woman presented with paresthesia of limbs, gait disturbance, urinary retention and constipation following upper respiratory infection. Neurological examination revealed gait disturbance due to loss of position sense in her extremities with intact muscle power, and autonomic failure represented by orthostatic hypotension, constipation and autonomic bladder. Cerebrospinal fluid analysis showed normal cell counts with elevated protein levels. Nerve conduction study showed sensory nerve impairment with almost normal motor nerve conduction in her upper and lower extremities...
December 23, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28004201/autonomic-disturbances-including-impaired-hand-thermoregulation-in-multiple-system-atrophy-and-parkinson-s-disease
#5
Sarunas Augustis, Viktoras Saferis, Wolfgang H Jost
Autonomic dysfunction in multiple system atrophy (MSA) comprises cardinal symptoms of orthostatic hypotension (OH) and urinary incontinence. Additionally, cardiovagal and sudomotor abnormalities can be present. Previous studies compared hand skin temperature and its response to cooling in subjects with probable MSA and Parkinson's disease (PD). Significant differences were found indicating that disturbed thermoregulation belongs to MSA autonomic features and could be helpful in differentiation of MSA from PD...
December 21, 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27991182/salience-network-connectivity-modulates-skin-conductance-responses-in-predicting-arousal-experience
#6
Chenjie Xia, Alexandra Touroutoglou, Karen S Quigley, Lisa Feldman Barrett, Bradford C Dickerson
Individual differences in arousal experience have been linked to differences in resting-state salience network connectivity strength. In this study, we investigated how adding task-related skin conductance responses (SCR), a measure of sympathetic autonomic nervous system activity, can predict additional variance in arousal experience. Thirty-nine young adults rated their subjective experience of arousal to emotionally evocative images while SCRs were measured. They also underwent a separate resting-state fMRI scan...
December 19, 2016: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/27938934/medial-approach-of-ultrasound-guided-costoclavicular-plexus-block-and-its-effects-on-regional-perfussion
#7
D Nieuwveld, V Mojica, A E Herrera, J Pomés, A Prats, X Sala-Blanch
INTRODUCTION: Ultrasound-guided infraclavicular block in the costoclavicular space located between the clavicle and the first rib, reaches the secondary trunks when they are clustered together and lateral to the axillary artery. This block is most often performed through a lateral approach, the difficulty being finding the coracoid process an obstacle and guiding the needle towards the vessels and pleura. A medial approach, meaning from inside to outside, will avoid these structures. Traditionally the assessment of a successful block is through motor or sensitive responses but a sympathetic fibre block can also be evaluated measuring the changes in humeral artery blood flow, skin temperature and/or perfusion index...
December 8, 2016: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/27932205/cold-induced-sympathetic-tone-modifies-the-impact-of-endothelium-dependent-vasodilation-in-the-finger-pulp
#8
Tone Kristin Bergersen, Maria Skytioti, Maja Elstad
OBJECTIVE: In thermoneutral and cold subjects, the sympathetic nervous system regulates skin blood flow by adjusting frequency of the tonic vasoconstrictor impulses. However, the way these thermoregulatory impulses influence the vascular endothelium is not well known. We studied how the sympathetic nervous system influences endothelium-dependent vasodilation (EDV) caused by shear stress in skin containing arteriovenous anastomoses (AVAs) and arterioles in healthy subjects. METHODS: Thirteen healthy subjects were exposed to thermoneutral (29°C) and cold (22°C) ambient temperatures on separate days...
November 30, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/27913968/post-ganglionic-autonomic-neuropathy-associated-with-anti-glutamic-acid-decarboxylase-antibodies
#9
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/27911393/a-detailed-protocol-for-perspiration-monitoring-using-a-novel-small-wireless-device
#10
Kazuhiro Ogai, Masakazu Fukuoka, Kei-Ichiro Kitamura, Kiyoshi Uchide, Tetsu Nemoto
Perspiration monitoring can be utilized for the detection of certain diseases, such as thermoregulation and mental disorders, particularly when the patients are unaware of such disorders or are having difficulty expressing their symptoms. Until now, several devices for perspiration monitoring have been developed; however, such devices tend to have a relatively large exterior, considerable power consumption, and/or less sensitivity. Recently, we developed a small, wireless device for perspiration monitoring...
November 24, 2016: Journal of Visualized Experiments: JoVE
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/27891612/neurovascular-mechanisms-underlying-augmented-cold-induced-reflex-cutaneous-vasoconstriction-in-human-hypertension
#12
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/27888495/an-unusual-presentation-of-intraocular-tuberculosis-in-a-monocular-patient-clinicopathological-correlation
#13
Kanika Aggarwal, Aniruddha Agarwal, Shobha Sehgal, Suryaprakash Sharma, Nirbhai Singh, Kusum Sharma, Ramanuj Samanta, Alessandro Invernizzi, Aman Sharma, Vishali Gupta
BACKGROUND: Lack of uniform diagnostic criteria often poses a challenge in the diagnosis and management of tubercular uveitis. The index case describes an unusual presentation of tubercular panuveitis initially misdiagnosed as sympathetic ophthalmia, where the appropriate diagnosis was made using various imaging and laboratory investigations. RESULTS: A 52-year-old Indian woman underwent multimodal imaging, extensive clinical and laboratory work-up, and analysis of microbiological and histopathological specimens...
December 2016: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/27878939/botulinum-toxin-a-for-palmar-hyperhidrosis-assessment-with-sympathetic-skin-responses-evoked-by-train-of-stimuli
#14
J Y Al-Hashel, D Youssry, H M Rashaed, T Shamov, R T Rousseff
Objective assessment of the effect of botulinum toxin A (BT) treatment in primary palmar hyperhidrosis (PH) is attempted by different methods. We decided to use for this purpose sympathetic skin responses evoked by train of stimuli (TSSR). Twenty patients with severe PH (five female, median age 24, range 18-36) were examined regularly over 3 months after receiving 50 UI BT in each palm. TSSR were recorded from the palms after sensory stimulation by a train of three supramaximal electric pulses 3 millisecond apart...
July 2016: Autonomic & Autacoid Pharmacology
https://www.readbyqxmd.com/read/27863904/exacerbating-factors-of-itch-in-atopic-dermatitis
#15
REVIEW
Hiroyuki Murota, Ichiro Katayama
Atopic dermatitis (AD) displays different clinical symptoms, progress, and response to treatment during early infancy and after childhood. After the childhood period, itch appears first, followed by formation of well-circumscribed plaque or polymorphous dermatoses at the same site. When accompanied with dermatitis and dry skin, treatment of skin lesions should be prioritized. When itch appears first, disease history, such as causes and time of appearance of itch should be obtained by history taking. In many cases, itch increases in the evening when the sympathetic nerve activity decreased...
November 15, 2016: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/27861895/effects-of-postural-change-from-supine-to-head-up-tilt-on-the-skin-sympathetic-nerve-activity-component-synchronised-with-the-cardiac-cycle-in-warmed-men
#16
Yu Ogawa, Yoshi-Ichiro Kamijo, Shigeki Ikegawa, Shizue Masuki, Hiroshi Nose
KEY POINTS: Humans are unique in controlling body temperature in a hot environment by a large amount of skin blood flow; however, the decrease in total peripheral resistance due to systemic cutaneous vasodilatation and the reduction of venous return to the heart due to blood pooling in the cutaneous vein threatens blood pressure maintenance in the upright position, and occasionally causes heat syncope. Against this condition, cutaneous vasodilatation is reportedly suppressed to maintain arterial pressure; however, the nerve activity responsible for this phenomenon has not been identified...
November 8, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27854467/parental-management-of-peers-and-autonomic-nervous-system-reactivity-in-predicting-adolescent-peer-relationships
#17
Kelly M Tu, Stephen A Erath, Mona El-Sheikh
The present study examined sympathetic and parasympathetic indices of autonomic nervous system reactivity as moderators of the prospective association between parental management of peers via directing of youths' friendships and peer adjustment in a sample of typically developing adolescents. Participants included 246 adolescents at Time 1 (T1) [47% boys; 66% European American (EA), 34% African American (AA)] and 226 adolescents at Time 2 (T2; 45% boys; 67% EA, 33% AA). Adolescents were approximately 16 and 17 years old at T1 and T2, respectively...
November 17, 2016: Developmental Psychology
https://www.readbyqxmd.com/read/27825900/relational-victimization-and-depressive-symptoms-the-role-of-autonomic-nervous-system-reactivity-in-emerging-adults
#18
Leigh Ann Holterman, Dianna K Murray-Close, Nicole L Breslend
The goal of the current study was to investigate the association between relational victimization, defined as being the target of aggressive acts that damage relationships (e.g., gossip, social exclusion) and depressive symptoms during the relatively understudied developmental period of emerging adulthood. In addition, as individual differences in stress reactivity may influence the outcomes associated with victimization by peers, the moderating roles of sympathetic nervous system (SNS; as measured by skin conductance reactivity) and parasympathetic nervous system (PNS; as measured by respiratory sinus arrhythmia) reactivity to social and non-social stressors were examined...
November 5, 2016: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/27823705/demonstration-of-sympathetic-dysfunction-in-patients-with-obstructive-sleep-apnea-syndrome-by-measuring-sympathetic-skin-responses-from-the-neck
#19
Bektaş Korkmaz, Gülçin Benbir Şenel, Meral E Kızıltan, Derya Karadeniz
OBJECTIVE: We aimed to study the sympathetic sudomotor responses via the sympathetic skin responses (SSR) from bilateral hands and right and left sides of the neck in patients with obstructive sleep apnea syndrome (OSAS). METHODS: A total of 31 patients with OSAS diagnosed by whole-night polysomnography and 18 healthy volunteers were consecutively enrolled into this prospective study. RESULTS: The SSRs from hands were not obtained in two patients with OSAS (6...
September 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27812758/autonomic-dysfunction-in-patients-with-essential-tremor
#20
Yasin Habipoglu, Murat Alpua, Cemil Bilkay, Yakup Turkel, Ersel Dag
The aim of this study was to evaluate the autonomic function in patients with essential tremor (ET). Thirty-one adult patients with ET and 26 healthy controls were enrolled in the study. The electrophysiological evaluations of the autonomic nervous system function were performed by sympathetic skin response (SSR) and R-R interval variation (RRIV) tests. The mean latency of SSR in ET patients was significantly delayed compared with the controls (P = 0.01). The mean amplitude of sympathetic skin response was significantly lower in ET patients in comparison to the controls (P = 0...
November 3, 2016: Neurological Sciences
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