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Autonomic dysregulation

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https://www.readbyqxmd.com/read/29447854/risk-factors-associated-complications-for-postoperative-urinary-retention-after-lumbar-surgery-for-lumbar-spinal-stenosis
#1
Joshua L Golubovsky, Haariss Ilyas, Jinxiao Chen, Joseph E Tanenbaum, Thomas E Mroz, Michael P Steinmetz
BACKGROUND CONTEXT: Postoperative Urinary Retention (POUR) is a very common post-operative complication of all surgeries (5 - 70%) that may lead to complications such as urinary tract infection (UTI), bladder over-distention, autonomic dysregulation, and increased postoperative length of stay (LOS). Within the field of spine surgery, the reported incidence of POUR is highly variable (5.6 - 38%). Lack of clear stratification of surgical level, spinal pathology, and inadequate sample size is a major limitation of available studies concerning POUR following spine surgery that may lead to inconsistency in the incidence of POUR and the ability to model its occurrence and consequences...
February 12, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29432258/overview-of-aldosterone-related-genetic-syndromes-and-recent-advances
#2
Maria-Christina Zennaro, Fabio L Fernandes-Rosa, Sheerazed Boulkroun
PURPOSE OF REVIEW: Primary aldosteronism is the most common form of secondary hypertension. Early diagnosis and treatment are key to cure of hypertension and prevention of cardiovascular complications. Recent genetic discoveries have improved our understanding on the pathophysiology of aldosterone production and triggered the development of new diagnostic procedures and targeted treatments for primary aldosteronism. RECENT FINDINGS: Different inherited genetic abnormalities distinguish specific forms of familial hyperaldosteronism...
February 8, 2018: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29421274/autonomous-role-of-wiskott-aldrich-syndrome-platelet-deficiency-in-inducing-autoimmunity-and-inflammation
#3
Lucia Sereni, Maria Carmina Castiello, Francesco Marangoni, Achille Anselmo, Dario di Silvestre, Sara Motta, Elena Draghici, Stefano Mantero, Adrian J Thrasher, Silvia Giliani, Alessandro Aiuti, Pierluigi Mauri, Luigi D Notarangelo, Marita Bosticardo, Anna Villa
BACKGROUND: Wiskott-Aldrich Syndrome (WAS) is an X-linked immunodeficiency characterized by eczema, infections and susceptibility to develop autoimmunity and malignancies. Thrombocytopenia is a constant finding, but its pathogenesis remains elusive. OBJECTIVE: To dissect the basis of WAS platelet (PLT) defect we used a novel conditional mouse model (CoWas) lacking WASp only in the megakaryocytic lineage in presence of a normal immunological environment and in parallel we analysed samples obtained from WAS patients...
February 5, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29394116/normal-scores-of-deep-breathing-tests-beware-of-dysrhythmia-in-transthyretin-amyloidosis
#4
Urban Wiklund, Amir Kadkhodaee, Kennet Andersson, Ole B Suhr, Rolf Hörnsten
BACKGROUND: The heart rate (HR) response to paced deep breathing (DB) is a common test of cardiac autonomic function, where high heart rate variability (HRV) is considered to reflect normal autonomic function. We evaluated the DB test in patients with hereditary transthyretin amyloid (ATTRm) amyloidosis, where autonomic dysregulation and atrial arrhythmias are common. METHODS: Paced DB was performed during one minute (six breaths/min) in 165 recordings in adult ATTRm amyloidosis patients with the TTR Val30Met mutation, 42 hypertrophic cardiomyopathy (HCM) patients and 211 healthy subjects...
February 2, 2018: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/29387461/hypertension-and-frailty-syndrome-in-old-age-current-perspectives
#5
Izabella Uchmanowicz, Anna Chudiak, Beata Jankowska-Polańska, Robbert Gobbens
Hypertension is both a health problem and a financial one globally. It affects nearly 30 % of the general population. Elderly people, aged ≥65 years, are a special group of hypertensive patients. In this group, the overall prevalence of the disease reaches 60 %, rising to 70 % in those aged ≥80 years. In the elderly population, isolated systolic hypertension is quite common. High systolic blood pressure is associated with an increased risk of cardiovascular disease, cerebrovascular disease, peripheral artery disease, cognitive impairment and kidney disease...
November 2017: Cardiac failure review
https://www.readbyqxmd.com/read/29384857/heart-rate-variability-in-normal-tension-glaucoma-a-case-control-study
#6
Natalia Ivanovna Kurysheva, Vitaliy Nikiforovich Shlapak, Tamara Yakovlevna Ryabova
Primary vascular dysregulation (PVD) is believed to be a main cause of local vasospasm and impaired autoregulation as a possible contributing factor in the pathogenesis of normal tension glaucoma (NTG). Subjects with PVD respond stronger to psychological stress. Autonomic dysfunction is another reason of instable ocular blood flow and may be studied by means of assessment of heart rate variability (HRV) especially during a hand-cold provocation test (CPT).To compare the shift of HRV parameters in NTG and healthy subjects after a cold provocation test and to assess the relation between structural damage, circulatory parameters and autonomic dysfunction in NTG...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29381665/what-s-in-a-name-are-menopausal-hot-flashes-a-symptom-of-menopause-or-a-manifestation-of-neurovascular-dysregulation
#7
Virginia M Miller, Juliana M Kling, Julia A Files, Michael J Joyner, Ekta Kapoor, Ann M Moyer, Walter A Rocca, Stephanie S Faubion
Hot flashes have typically been classified as "symptoms of menopause" that should be tolerated or treated until they resolve. However, mounting evidence points to hot flashes as a manifestation of one or several underlying pathophysiological processes. Associations exist between the presence, timing of onset, severity, and duration of hot flashes, and the risk of several neurological (affecting sleep, mood, and cognition) and cardiovascular conditions. In addition, four consistent patterns of vasomotor disturbances have been identified across different countries, making it unlikely that these patterns are solely explained by socioeconomic or cultural factors...
January 29, 2018: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/29380303/gut-microbiota-and-the-neuroendocrine-system
#8
REVIEW
Aitak Farzi, Esther E Fröhlich, Peter Holzer
The microbial ecosystem that inhabits the gastrointestinal tract of all mammals-the gut microbiota-has been in a symbiotic relationship with its hosts over many millennia. Thanks to modern technology, the myriad of functions that are controlled or modulated by the gut microbiota are beginning to unfold. One of the systems that is emerging to closely interact with the gut microbiota is the body's major neuroendocrine system that controls various body processes in response to stress, the hypothalamic-pituitary-adrenal (HPA) axis...
January 27, 2018: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29337116/impact-of-swiprosin-1-efhd2-on-adult-hippocampal-neurogenesis
#9
Martin Regensburger, Iryna Prots, Dorothea Reimer, Sebastian Brachs, Sandra Loskarn, Dieter Chichung Lie, Dirk Mielenz, Beate Winner
Swiprosin-1/Efhd2 (Efhd2) is highly expressed in the CNS during development and in the adult. EFHD2 is regulated by Ca2+ binding, stabilizes F-actin, and promotes neurite extension. Previous studies indicated a dysregulation of EFHD2 in human Alzheimer's disease brains. We hypothesized a detrimental effect of genetic ablation of Efhd2 on hippocampal integrity and specifically investigated adult hippocampal neurogenesis. Efhd2 was expressed throughout adult neuronal development and in mature neurons. We observed a severe reduction of the survival of adult newborn neurons in Efhd2 knockouts, starting at the early neuroblast stage...
January 9, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29328793/novel-molecular-and-phenotypic-insights-into-congenital-lung-malformations
#10
Daniel T Swarr, William H Peranteau, Jennifer Pogoriler, David B Frank, N Scott Adzick, Holly L Hedrick, Mike Morley, Su Zhou, Edward E Morrisey
RATIONALE: Disruption of normal pulmonary development is a leading cause of morbidity and mortality in infants. Congenital lung malformations are a unique model to study the molecular pathogenesis of isolated structural birth defects as they are often surgically resected. OBJECTIVES: To provide insight into the molecular pathogenesis of congenital lung malformations through analysis of cell-type and gene expression changes in these lesions. METHODS: Clinical data, and lung tissue for DNA, RNA, and histology were obtained from 58 infants undergoing surgical resection of a congenital lung lesion...
January 12, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29305721/paragangliomas-arise-through-an-autonomous-vasculo-angio-neurogenic-program-inhibited-by-imatinib
#11
Fabio Verginelli, Silvia Perconti, Simone Vespa, Francesca Schiavi, Sampath Chandra Prasat, Paola Lanuti, Alessandro Cama, Lorenzo Tramontana, Diana Liberata Esposito, Simone Guarnieri, Artenca Sheu, Mattia Russel Pantalone, Rosalba Florio, Annalisa Morgano, Cosmo Rossi, Giuseppina Bologna, Marco Marchisio, Andrea D'Argenio, Elisa Taschin, Rosa Visone, Giuseppe Opocher, Angelo Veronese, Carlo T Paties, Vinalogu K Rajasekhar, Cecilia Söderberg-Nauclér, Mario Sanna, Lavinia Vittoria Lotti, Renato Mariani-Costantini
Tumours can be viewed as aberrant tissues or organs sustained by tumorigenic stem-like cells that engage into dysregulated histo/organogenetic processes. Paragangliomas, prototypical organoid tumours constituted by dysmorphic variants of the vascular and neural tissues found in normal paraganglia, provide a model to test this hypothesis. To understand the origin of paragangliomas, we built a biobank comprising 77 cases, 18 primary cultures, 4 derived cell lines, 80 patient-derived xenografts and 11 cell-derived xenografts...
January 5, 2018: Acta Neuropathologica
https://www.readbyqxmd.com/read/29297736/increased-receptor-activity-modifying-protein-1-in-the-nervous-system-is-sufficient-to-protect-against-autonomic-dysregulation-and-hypertension
#12
Rasna Sabharwal, Bianca N Mason, Adisa Kuburas, Francois M Abboud, Andrew F Russo, Mark W Chapleau
Calcitonin gene-related peptide (CGRP) can cause migraines, yet it is also a potent vasodilator that protects against hypertension. Given the emerging role of CGRP-targeted antibodies for migraine prevention, an important question is whether the protective actions of CGRP are mediated by vascular or neural CGRP receptors. To address this, we have characterized the cardiovascular phenotype of transgenic nestin/hRAMP1 mice that have selective elevation of a CGRP receptor subunit in the nervous system, human receptor activity-modifying protein 1 (hRAMP1)...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29295997/diabetes-impairs-wound-healing-by-dnmt1-dependent-dysregulation-of-hematopoietic-stem-cells-differentiation-towards-macrophages
#13
Jinglian Yan, Guodong Tie, Shouying Wang, Amanda Tutto, Natale DeMarco, Lyne Khair, Thomas G Fazzio, Louis M Messina
People with type 2 diabetes mellitus (T2DM) have a 25-fold higher risk of limb loss than non-diabetics due in large part to impaired wound healing. Here, we show that the impaired wound healing phenotype found in T2D mice is recapitulated in lethally irradiated wild type recipients, whose hematopoiesis is reconstituted with hematopoietic stem cells (HSCs) from T2D mice, indicating an HSC-autonomous mechanism. This impaired wound healing phenotype of T2D mice is due to a Nox-2-dependent increase in HSC oxidant stress that decreases microRNA let-7d-3p, which, in turn, directly upregulates Dnmt1, leading to the hypermethylation of Notch1, PU...
January 2, 2018: Nature Communications
https://www.readbyqxmd.com/read/29288875/ecsit-links-tlr-and-bmp-signaling-in-fop-connective-tissue-progenitor-cells
#14
REVIEW
Haitao Wang, Edward M Behrens, Robert J Pignolo, Frederick S Kaplan
Clinical and laboratory observations strongly suggest that the innate immune system induces flare-ups in the setting of dysregulated bone morphogenetic protein (BMP) signaling in fibrodysplasia ossificans progressiva (FOP). In order to investigate the signaling substrates of this hypothesis, we examined toll-like receptor (TLR) activation and bone morphogenetic protein (BMP) signaling in connective tissue progenitor cells (CTPCs) from FOP patients and unaffected individuals. We found that inflammatory stimuli broadly activate TLR expression in FOP CTPCs and that TLR3/TLR4 signaling amplifies BMP pathway signaling through both ligand dependent and independent mechanisms...
December 27, 2017: Bone
https://www.readbyqxmd.com/read/29258941/technical-note-preemptive-surgical-revision-of-impending-deep-brain-stimulation-hardware-erosion
#15
Thomas F Barrett, Jonathan J Rasouli, Peter Taub, Brian H Kopell
BACKGROUND: While DBS is a relatively safe procedure, skin erosion is a commonly reported hardware complication that can threaten the DBS system. Patients with PD are especially at risk for this complication due to their autonomic dysregulation and impaired nutrition. Early detection of impending skin erosion allows for intervention that may prevent hardware destruction. Here we report a novel technique to address this complication preemptively. We describe the use of an acellular dermal matrix to prevent skin erosion in 20 patients with PD who were treated with DBS and showed signs of impending skin erosion...
December 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29248204/intestinal-permeability-and-m%C3%A3-ni%C3%A3-re-s-disease
#16
F Di Berardino, D Zanetti, E Ciusani, C Caccia, V Leoni, U De Grazia, E Filipponi, L Elli
PURPOSE: Ménière disease (MD) is a multifactorial chronic disabling condition characterized by episodic vertigo, ear fullness, and hearing loss. MD patients often complain of aspecific gastrointestinal symptoms associated with autonomic dysregulation, frequently outweighed by the otological manifestations. Dietary modifications have been reported to improve the typical MD symptoms in some cases. Our purpose was to test the urinary levels of lactulose and mannitol (double sugar test) and the fecal calprotectin, both markers of altered intestinal permeability, in subjects with definite MD in an active and inactive stage...
December 5, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29248020/gene-%C3%A3-environment-contributions-to-autonomic-stress-reactivity-in-youth
#17
Andrea G Allegrini, Brittany E Evans, Susanne de Rooij, Kirstin Greaves-Lord, Anja C Huizink
Dysregulated physiological stress reactivity has been suggested to impact the development of children and adolescents with important health consequences throughout the life span. Both environmental adversity and genetic predispositions can lead to physiological imbalances in stress systems, which in turn lead to developmental differences. We investigated genetic and environmental contributions to autonomic nervous system reactivity to a psychosocial stressor. Furthermore, we tested whether these effects were consistent with the differential susceptibility framework...
December 17, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29238609/blunted-heart-rate-recovery-is-associated-with-coronary-artery-spasm-in-patients-with-suspected-vasospastic-angina
#18
Hyunsu Kim, Sang-Hoon Cho, Kyoung-Im Cho, Bong-Joon Kim, Sung-Il Im, Jung-Ho Heo
Background: Autonomic nervous system activity has been shown to be altered in patients with vasospastic angina (VA). Heart rate recovery (HRR) is a simple, non-invasive measurement of autonomic nervous system dysfunction. We aimed to investigate whether HRR is related to VA, as established by an ergonovine test. Methods: A total of 976 consecutive patients (47.5% male, mean age 55 years) without significant coronary artery disease who underwent both an ergonovine provocation test and a treadmill exercise test were enrolled...
2017: Clinical Hypertension
https://www.readbyqxmd.com/read/29220503/downregulation-of-survivin-contributes-to-cell-cycle-arrest-during-postnatal-cardiac-development-in-a-severe-spinal-muscular-atrophy-mouse-model
#19
Lei Sheng, Bo Wan, Pengchao Feng, Junjie Sun, Frank Rigo, C Frank Bennett, Martin Akerman, Adrian R Krainer, Yimin Hua
Spinal muscular atrophy (SMA) is the leading genetic cause of infant mortality, characterized by progressive degeneration of spinal-cord motor neurons, leading to atrophy of skeletal muscles. However, accumulating evidence indicates that it is a multi-system disorder, particularly in its severe forms. Several studies delineated structural and functional cardiac abnormalities in SMA patients and mouse models, yet the abnormalities have been primarily attributed to autonomic dysfunction. Here, we show in a severe mouse model that its cardiomyocytes undergo G0/G1 cell-cycle arrest and enhanced apoptosis during postnatal development...
December 6, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29168286/comparative-proteomic-profiling-reveals-a-role-for-cisd2-in-skeletal-muscle-aging
#20
Yi-Long Huang, Zhao-Qing Shen, Chia-Yu Wu, Yuan-Chi Teng, Chen-Chung Liao, Cheng-Heng Kao, Liang-Kung Chen, Chao-Hsiung Lin, Ting-Fen Tsai
Skeletal muscle has emerged as one of the most important tissues involved in regulating systemic metabolism. The gastrocnemius is a powerful skeletal muscle composed of predominantly glycolytic fast-twitch fibers that are preferentially lost among old age. This decrease in gastrocnemius muscle mass is remarkable during aging; however, the underlying molecular mechanism is not fully understood. Strikingly, there is a ~70% decrease in Cisd2 protein, a key regulator of lifespan in mice and the disease gene for Wolfram syndrome 2 in humans, within the gastrocnemius after middle age among mice...
November 23, 2017: Aging Cell
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