keyword
MENU ▼
Read by QxMD icon Read
search

vagal

keyword
https://www.readbyqxmd.com/read/28106018/cardioneuroablation-in-the-treatment-of-neurally-mediated-reflex-syncope-a-review-of-the-current-literature
#1
Tolga Aksu, Tümer Erdem Güler, Serdar Bozyel, Kazım Serhan Özcan, Kıvanç Yalın, Ferit Onur Mutluer
OBJECTIVE: An imbalance between parasympathetic and sympathetic tone is a main cause of neurally mediated reflex syncope (NMRS). These patients may be very symptomatic and the condition may require cardiac pacemaker implantation. Cardioneuroablation (CNA) is a relatively novel technique based on radiofrequency ablation of vagal ganglia that can be used in treatment of NMRS. The aim of this analysis was to compare potential role of CNA in patients with NMRS. METHODS: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement, literature search was conducted using the keywords "cardioneuroablation," "vagal denervation," "reflex syncope," "vagal ablation," and "ganglionic plexi ablation...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28105483/gastric-acid-secretion-and-gastrin-release-during-continuous-vagal-neuromonitoring-in-thyroid-surgery
#2
Liu Xiaoli, Che-Wei Wu, Hoon Yub Kim, Wen Tian, Feng-Yu Chiang, Renbin Liu, Angkoon Anuwong, Gregory W Randolph, Gianlorenzo Dionigi, Matteo Lavazza
PURPOSE: The vagus nerve (VN) has essential regulatory roles in the gastric acid secretion and gastrin release. Continuous intraoperative neuromonitoring (CIONM) via VN stimulation is a promising technique in thyroid surgery because it potentially avoids injury to the recurrent laryngeal nerve. However, no studies have investigated changes in gastric acid secretion and gastrin release during CIONM. METHOD: This prospective study of 58 thyroid surgery patients compared gastric acid and serum gastrin at five time points: (1) before skin incision, (2) after baseline calibration of CIONM probe, (3) +20 min from baseline, (4) before probe removal, and (5) after extubation...
January 19, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28104084/access-to-vagal-projections-via-cutaneous-electrical-stimulation-of-the-neck-fmri-evidence-in-healthy-humans
#3
Eleni Frangos, Barry R Komisaruk
BACKGROUND: Stimulation of the vagus nerve via implanted electrodes is currently used to treat refractory epilepsy and depression. Recently, a non-invasive approach to vagal stimulation has demonstrated similar beneficial effects, but it remains unclear whether these effects are mediated via activation of afferent vagal fibers. OBJECTIVE: The present study was designed to ascertain whether afferent vagal projections can be accessed non-invasively by transcutaneous electrical stimulation of the antero-lateral surface of the neck, which overlies the course of the vagus nerve...
January 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28103597/psychophysiological-effects-of-a-single-short-and-moderately-bright-room-light-exposure-on-mildly-depressed-geriatric-inpatients-a-pilot-study
#4
Markus Canazei, Wilfried Pohl, Kathrin Bauernhofer, Ilona Papousek, Helmut K Lackner, Harald R Bliem, Josef Marksteiner, Elisabeth M Weiss
BACKGROUND: Light interventions typically exert their mood-related effects during morning bright light exposures over several weeks. Evidence about immediate ambient room light effects on depressed individuals is still sparse. OBJECTIVE: The present study aimed at examining the acute effects of a single moderately bright room light exposure on mood, and behavioural and cardiac stress reactions of mildly depressed geriatric inpatients during a short cognitive stimulation and while resting...
January 20, 2017: Gerontology
https://www.readbyqxmd.com/read/28103546/quantifying-net-synergy-redundancy-of-spontaneous-variability-regulation-via-predictability-and-transfer-entropy-decomposition-frameworks
#5
Alberto Porta, Vlasta Bari, Beatrice De Maria, Anielle C M Takahashi, Stefano Guzzetti, Riccardo Colombo, Aparecida M Catai, Ferdinando Raimondi, Luca Faes
OBJECTIVE: Indexes assessing the balance between redundancy and synergy were hypothesized to be helpful in characterizing cardiovascular control from spontaneous beat-to-beat variations of heart period (HP), systolic arterial pressure (SAP) and respiration (R). METHODS: Net redundancy/synergy indexes were derived according to predictability and transfer entropy decomposition strategies via a multivariate linear regression approach. Indexes were tested in two protocols inducing modifications of the cardiovascular regulation via baroreflex loading/unloading (i...
January 17, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28099586/serotoninergic-modulation-of-basal-cardiovascular-responses-and-responses-induced-by-isotonic-extracellular-volume-expansion-in-rats
#6
Isadora Ferraz Semionatto, Adrieli Oliveira Raminelli, Angelica Cristina Alves, Caroline Santos Capitelli, Rosangela Soares Chriguer
Background: Isotonic blood volume expansion (BVE) induced alterations of sympathetic and parasympathetic activity in the heart and blood vessels, which can be modulated by serotonergic pathways. Objective: To evaluate the effect of saline or serotonergic agonist (DOI) administration in the hypothalamic paraventricular nucleus (PVN) on cardiovascular responses after BVE. Methods: We recorded pulsatile blood pressure through the femoral artery to obtain the mean arterial pressure (MAP), systolic (SBP) and diastolic blood pressure (DBP), heart rate (HR) and the sympathetic-vagal ratio (LF/HF) of Wistar rats before and after they received bilateral microinjections of saline or DOI into the PVN, followed by BVE...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28098427/emergence-of-mania-in-two-middle-aged-patients-with-a-history-of-unipolar-treatment-refractory-depression-receiving-vagus-nerve-stimulation
#7
Naji C Salloum, Marie C Walker, Sunil Gangwani, Charles R Conway
OBJECTIVES: We report on two patients who experienced emergence of full manic symptoms while receiving vagal nerve stimulation (VNS). METHODS: Two patients, both with a well-documented and verified history of longstanding unipolar depression, were initiated on VNS for treatment of their severe major depressive episodes. RESULTS: The two patients had emergence of full manic symptoms after 8 and 9 months of VNS, respectively. Manic symptoms were adequately managed with standard treatments (mood stabilizer and electroconvulsive therapy) and VNS was continued in the two subjects for up to 5 years without any further occurrences of manic/hypomanic episodes...
January 18, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28095501/birth-weight-and-its-relationship-with-the-cardiac-autonomic-balance-in-healthy-children
#8
Livia Victorino Souza, Vanessa Oliveira, Franciele De Meneck, Ana Paula Grotti Clemente, Maria Wany Louzada Strufaldi, Maria do Carmo Franco
Several studies indicate that the fetal environment plays a significant role in the development of cardiometabolic disease later in life. However, a few studies present conflicting data about the correlation between birth weight and the impairment of cardiac autonomic modulation. The purpose of the present study was to provide further knowledge to elucidate this contradictory relationship. One hundred children aged 5 and 14 years had anthropometric parameters, body composition and blood pressure levels determined...
2017: PloS One
https://www.readbyqxmd.com/read/28091773/the-nervous-system-of-airways-and-its-remodeling-in-inflammatory-lung-diseases
#9
REVIEW
Katrin Julia Audrit, Lucas Delventhal, Öznur Aydin, Christina Nassenstein
Inflammatory lung diseases are associated with bronchospasm, cough, dyspnea and airway hyperreactivity. The majority of these symptoms cannot be primarily explained by immune cell infiltration. Evidence has been provided that vagal efferent and afferent neurons play a pivotal role in this regard. Their functions can be altered by inflammatory mediators that induce long-lasting changes in vagal nerve activity and gene expression in both peripheral and central neurons, providing new targets for treatment of pulmonary inflammatory diseases...
January 14, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28091707/gastric-distension-causes-changes-in-heart-rate-and-arterial-blood-pressure-by-affecting-the-crosstalk-between-vagal-and-splanchnic-systems-in-anesthetised-rats
#10
Maurizio Sabbatini, Elena Grossini, Claudio Molinari, David A S G Mary, Giovanni Vacca, Mario Cannas
Various hindbrain nuclei have been demonstrated to be involved in the control of the cardiovascular reflexes elicited by both non-noxious and noxious gastric distension, through parasympathetic and sympathetic activation. The different role played by the branches of autonomic nervous system in exerting these effects and their crosstalk in relation to low-/high-pressure distension rate has not been examined yet. Therefore, in the present work, monolateral and bilateral vagotomy and splanchnicotomy were performed in anesthetised rats to analyse the involvement of hindbrain nuclei in haemodynamic changes caused by gastric distension at high (80 mmHg) and low (15 mmHg) pressure...
January 13, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28090681/excess-of-exercise-increases-the-risk-of-atrial-fibrillation
#11
REVIEW
A Müssigbrodt, A Weber, J Mandrola, Y van Belle, S Richter, M Döring, A Arya, P Sommer, A Bollmann, G Hindricks
An interesting and still not well-understood example for old medical wisdom "Sola dosis facit venenum" is the increased prevalence of atrial fibrillation (AF) in athletes. Numerous studies have shown a fourfold to eightfold increased risk of AF in athletes compared to the normal population. Analysis of the existing data suggests a dose-dependent effect of exercise. Moderate exercise seems to have a protective effect and decreases the risk of AF, whereas excessive exercise seems to increase the risk of AF. The described cases illustrate clinical manifestations within the spectrum of AF in elderly athletes, that is, exercise-induced AF, vagal AF, chronic AF, and atrial flutter...
January 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28090348/changes-in-hba1c-and-circulating-and-adipose-tissue-androgen-levels-in-overweight-obese-women-with-polycystic-ovary-syndrome-in-response-to-electroacupuncture
#12
E Stener-Victorin, M Maliqueo, M Soligo, V Protto, L Manni, E Jerlhag, M Kokosar, A Sazonova, C J Behre, M Lind, C Ohlsson, K Højlund, A Benrick
AIM: Insulin sensitivity is ~40% lower in women with polycystic ovary syndrome (PCOS) than in controls. We tested the hypothesis that 5 weeks of electroacupuncture treatment improves glucose regulation and androgen levels in overweight/obese women with PCOS. MATERIAL AND METHODS: Seventeen women with PCOS, aged 18 to 38 years, with a body mass index (BMI) ≥25 kg/m(2) and diagnosed with PCOS were included in this experimental and feasibility study and subjected to five weeks of electroacupuncture treatments three times/week...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28087413/nesfatin-1-modulates-murine-gastric-vagal-afferent-mechanosensitivity-in-a-nutritional-state-dependent-manner
#13
Stephen J Kentish, Hui Li, Claudine L Frisby, Amanda J Page
Food intake is regulated by vagal afferent signals from the stomach. Nesfatin-1 is an anorexigenic peptide produced within the gastrointestinal tract and has well defined central effects. We aimed to determine if nesfatin-1 can modulate gastric vagal afferent signals in the periphery and further whether this is altered in different nutritional states. Female C57BL/6J mice were fed either a standard laboratory diet (SLD) or a high fat diet (HFD) for 12 weeks or fasted overnight. Plasma nucleobindin-2 (NUCB2; nesfatin-1 precursor)/nesfatin-1 levels were assayed, the expression of NUCB2 in the gastric mucosa and adipose tissue was assessed using real-time quantitative reverse-transcription polymerase chain reaction...
January 10, 2017: Peptides
https://www.readbyqxmd.com/read/28080968/interoception-homeostatic-emotions-and-sympathovagal-balance
#14
Irina A Strigo, Arthur D Bud Craig
We briefly review the evidence for distinct neuroanatomical substrates that underlie interoception in humans, and we explain how they substantialize feelings from the body (in the insular cortex) that are conjoined with homeostatic motivations that guide adaptive behaviours (in the cingulate cortex). This hierarchical sensorimotor architecture coincides with the limbic cortical architecture that underlies emotions, and thus we regard interoceptive feelings and their conjoint motivations as homeostatic emotions We describe how bivalent feelings, emotions and sympathovagal balance can be organized and regulated efficiently in the bicameral forebrain as asymmetric positive/negative, approach/avoidance and parasympathetic/sympathetic components...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28076450/time-course-of-changes-in-heart-rate-and-blood-pressure-variability-in-rats-with-myocardial-infarction
#15
R Aires, E B Pimentel, L Forechi, E M Dantas, J G Mill
Our aim was to determine the time course of changes in autonomic balance in the acute (1 and 3 days), sub-acute (7 days) and chronic (28 days) phases of myocardial infarction (MI) in rats. Autonomic balance was assessed by temporal and spectral analyses of blood pressure variability (BPV) and heart rate variability (HRV). Pulsatile blood pressure (BP) recordings (30 min) were obtained in awake and unrestrained male Wistar rats (N = 77; 8-10 weeks old) with MI (coronary ligature) or sham operation (SO). Data are reported as means±SE...
January 9, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28076297/dynamics-of-the-cardiovascular-autonomic-regulation-during-orthostatic-challenge-is-more-relaxed-in-women
#16
Sina Reulecke, Sonia Charleston-Villalobos, Andreas Voss, Ramón González-Camarena, Jesús González-Hermosillo, Mercedes Gaitán-González, Guadalupe Hernández-Pacheco, Rico Schroeder, Tomás Aljama-Corrales
Linear dynamic analysis of cardiovascular and respiratory time series was performed in healthy subjects with respect to gender by shifted short-term segments throughout a head-up tilt (HUT) test. Beat-to-beat intervals (BBI), systolic (SYS) and diastolic (DIA) blood pressure and respiratory interval (RESP) time series were acquired in 14 men and 15 women. In time domain (TD), the descending slope of the auto-correlation function (ACF) (BBI_a31cor) was more pronounced in women than in men (p<0.05) during the HUT test and considerably steeper (p<0...
January 11, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28065837/vagal-regulation-of-group-3-innate-lymphoid-cells-and-the-immunoresolvent-pctr1-controls-infection-resolution
#17
Jesmond Dalli, Romain A Colas, Hildur Arnardottir, Charles N Serhan
Uncovering mechanisms that control immune responses in the resolution of bacterial infections is critical for the development of new therapeutic strategies that resolve infectious inflammation without unwanted side effects. We found that disruption of the vagal system in mice delayed resolution of Escherichia coli infection. Dissection of the right vagus decreased peritoneal group 3 innate lymphoid cell (ILC3) numbers and altered peritoneal macrophage responses. Vagotomy resulted in an inflammatory peritoneal lipid mediator profile characterized by reduced concentrations of pro-resolving mediators, including the protective immunoresolvent PCTR1, along with elevated inflammation-initiating eicosanoids...
January 17, 2017: Immunity
https://www.readbyqxmd.com/read/28065827/gastric-bypass-surgery-recruits-a-gut-ppar-%C3%AE-striatal-d1r-pathway-to-reduce-fat-appetite-in-obese-rats
#18
Mohammed K Hankir, Florian Seyfried, Constantin A Hintschich, Thi-Ai Diep, Karen Kleberg, Mathias Kranz, Winnie Deuther-Conrad, Luis A Tellez, Michael Rullmann, Marianne Patt, Jens Teichert, Swen Hesse, Osama Sabri, Peter Brust, Harald S Hansen, Ivan E de Araujo, Ute Krügel, Wiebke K Fenske
Bariatric surgery remains the single most effective long-term treatment modality for morbid obesity, achieved mainly by lowering caloric intake through as yet ill-defined mechanisms. Here we show in rats that Roux-en-Y gastric bypass (RYGB)-like rerouting of ingested fat mobilizes lower small intestine production of the fat-satiety molecule oleoylethanolamide (OEA). This was associated with vagus nerve-driven increases in dorsal striatal dopamine release. We also demonstrate that RYGB upregulates striatal dopamine 1 receptor (D1R) expression specifically under high-fat diet feeding conditions...
January 2, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28062485/activation-of-bitter-taste-receptors-in-pulmonary-nociceptors-sensitizes-trpv1-channels-through-plc-and-pkc-signaling-pathway
#19
Qihai Gu, Deanna S Joe, Carolyn A Gilbert
Bitter taste receptors (T2Rs), a G-protein-coupled receptor family capable of detecting numerous bitter-tasting compounds, have recently been shown to be expressed and play diverse roles in many extraoral tissues. Here we report the functional expression of T2Rs in rat pulmonary sensory neurons. In anesthetized spontaneously breathing rats, intratracheal instillation of T2Rs agonist chloroquine (10 mM, 0.1 ml) significantly augmented chemoreflexes evoked by right-atrial injection of capsaicin, a specific activator for transient receptor potential vanilloid receptor 1 (TRPV1); whereas intravenous infusion of chloroquine failed to significantly affect capsaicin-evoked reflexes...
January 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28061975/the-place-of-stress-and-emotions-in-the-irritable-bowel-syndrome
#20
S Pellissier, B Bonaz
Our emotional state can have many consequences on our somatic health and well-being. Negative emotions such as anxiety play a major role in gut functioning due to the bidirectional communications between gut and brain, namely, the brain-gut axis. The irritable bowel syndrome (IBS), characterized by an unusual visceral hypersensitivity, is the most common disorder encountered by gastroenterologists. Among the main symptoms, the presence of current or recurrent abdominal pain or discomfort associated with bloating and altered bowel habits characterizes this syndrome that could strongly alter the quality of life...
2017: Vitamins and Hormones
keyword
keyword
81137
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"