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Heart Rate Variability and cardiovascular disease

Julie E Finnell, Brandon L Muniz, Akhila R Padi, Calliandra M Lombard, Casey M Moffitt, Christopher S Wood, L Britt Wilson, Lawrence P Reagan, Marlene A Wilson, Susan K Wood
BACKGROUND: Women are at greater risk than men of developing depression and comorbid disorders such as cardiovascular disease. This enhanced risk begins at puberty and ends following menopause, suggesting a role for ovarian hormones in this sensitivity. Here we used a model of psychosocial witness stress in female rats to determine the stress-induced neurobiological adaptations that underlie stress susceptibility in an ovarian hormone-dependent manner. METHODS: Intact or ovariectomized (OVX) female rats were exposed to five daily 15-minute witness-stress exposures...
January 31, 2018: Biological Psychiatry
Narjeet S Khurmi, Yu-Hui Chang, D Eric Steidley, Andrew L Singer, Winston R Hewitt, Kunam S Reddy, Adyr A Moss, Amit K Mathur
BACKGROUND: Cardiovascular disease (CVD) is a leading cause of post-liver transplant death, and variable care patterns may affect outcomes. We aimed to describe epidemiology and outcomes of inpatient CVD care across U.S. hospitals. METHODS: Using a merged dataset from the 2002-2011 Nationwide Inpatient Sample and the American Hospital Association Annual Survey, we evaluated liver transplant patients admitted primarily with myocardial infarction (MI), stroke (CVA), congestive heart failure (CHF), dysrhythmias, cardiac arrest (CA), or malignant hypertension...
March 15, 2018: Liver Transplantation
Meyrick Kidwell, Bart A Ellenbroek
There is a bidirectional relationship between affective disorders and cardiovascular abnormalities, often described as a downward spiral, whereas major depressive disorders (MDD, and anxiety disorders) significantly increase the risk of developing cardiovascular diseases (CVD); CVD are also associated with increased risk of developing MDD (and anxiety disorders). Moreover, the prognosis and progression of CVD is significantly worsened in the presence of MDD. Heart rate variability (HRV) has often been suggested as a potential mediator in this comorbidity...
April 2018: Behavioural Pharmacology
Hayley A Young, David Benton
As the influence of diet on health may take place over a period of decades, there is a need for biomarkers that help to identify those aspects of nutrition that have either a positive or a negative influence. The evidence is considered that heart-rate variability (HRV) (the time differences between one beat and the next) can be used to indicate the potential health benefits of food items. Reduced HRV is associated with the development of numerous conditions for example, diabetes, cardiovascular disease, inflammation, obesity and psychiatric disorders...
April 2018: Behavioural Pharmacology
Jiuxing Liang, Xiangmin Zhang, Yuxi Luo, Tingting Wang, Lin Sun, Shaoxiong Huang
Sleep apnea hypopnea syndrome (SAHS) is an independent risk factor for cardiovascular diseases. However, the pathophysiology between them is not yet clear. This paper seeks to understand how respiratory events impact the cardiovascular system by heart rate variability. We compared the differences between successional pathological respiratory events (PR) and pure normal respiration (NR) during sleep. The transitions between normal and pathological respiration (TR) were also analyzed. Thirteen patients who suffered moderate or severe SAHS were enrolled in this study...
March 12, 2018: International Heart Journal
Maja Elstad, Erin L O'Callaghan, Alexander J Smith, A Ben-Tal, Rohit Ramchandra
The cardiorespiratory system exhibits oscillations from a range of sources. One of the most studied oscillations is heart rate variability, which is thought to be beneficial and can serve as an index of a healthy cardiovascular system. Heart rate variability is dampened in many diseases including depression, autoimmune diseases, hypertension and heart failure. Thus, understanding the interactions that lead to heart rate variability, and its physiological role, could help with prevention, diagnosis and treatment of cardiovascular diseases...
March 9, 2018: American Journal of Physiology. Heart and Circulatory Physiology
Alexander Schmidt, Ernst G Schukat-Talamazzini, Janine Zöllkau, Adelina Pytlik, Sophia Leibl, Kathrin Kumm, Franziska Bode, Isabelle Kynass, Otto W Witte, Ekkehard Schleussner, Uwe Schneider, Dirk Hoyer
Adverse prenatal environmental influences to the developing fetus are associated with mental and cardiovascular disease in later life. Universal developmental characteristics such as self-organization, pattern formation, and adaptation in the growing information processing system have not yet been sufficiently analyzed with respect to description of normal fetal development and identification of developmental disturbances. Fetal heart rate patterns are the only non-invasive order parameter of the developing autonomic brain available with respect to the developing complex organ system...
March 5, 2018: Autonomic Neuroscience: Basic & Clinical
Glaucylara Reis Geovanini, Rui Wang, Jia Weng, Russell Tracy, Nancy S Jenny, Ary L Goldberger, Madalena D Costa, Yongmei Liu, Peter Libby, Susan Redline
BACKGROUND: Obstructive sleep apnea (OSA) associates with increased risk of cardiovascular diseases (CVD). Immune abnormalities and surges in sympathetic activity accompany OSA and CVD. We hypothesized that OSA associates with leukocytosis partially by abnormalities in autonomic nervous system (ANS) function that would suggest a pathway linking OSA and CVD. METHODS: Participants from the Multi-Ethnic Study of Atherosclerosis (MESA), a prospective cohort of individuals initially without overt CVD, underwent polysomnography and assays for white blood cells (WBC) and subsets...
April 15, 2018: International Journal of Cardiology
Lulu Wang, Wenjin Liu, Yanting Yu, Lei Jiang, Junwei Yang
BACKGROUND: C-type natriuretic peptide (CNP) is a member of the natriuretic peptide family and have been implicated to be involved in maintaining vascular homeostasis and acting as a cardiac chronotropic agent in experimental studies. However, clinical evidence of its participation in cardiovascular regulation is lacking, especially in patients with chronic kidney disease (CKD). We aimed to explore the association of circulating CNP with cardiovascular alterations in CKD. METHODS: Seventy-six subjects with CKD were recruited...
March 5, 2018: BMC Nephrology
Verônica Porto de Freitas, Rafael da Silva Passos, Alinne Alves Oliveira, Ícaro J S Ribeiro, Ivna Vidal Freire, Ludmila Schettino, Mauro Fernandes Teles, Cezar Augusto Casotti, Rafael Pereira
PURPOSE: The aims of this study were to compare the autonomic heart control parameters from sarcopenic and non-sarcopenic community-dwelling elders. METHODS: This is a cross-sectional study including 76 community-dwelling old adults, which was clinically stratified as sarcopenic or non-sarcopenic, according to the current recommendations. They were submitted to 5-min recordings of successive RR intervals. The analysis of the RR intervals variability was carried out in time (mean RR, RMSSD, pNN50, SDNN and triangular index) and frequency domains (LFnu, HFnu and LF/HF ratio), and with nonlinear methods (SD1, SD2, and D2 )...
February 2, 2018: Archives of Gerontology and Geriatrics
Denise C Jarrin, Hans Ivers, Manon Lamy, Ivy Y Chen, Allison G Harvey, Charles M Morin
Two phenotypes have been proposed: insomnia with objective near-normal sleep duration, related to increased psychological symptoms, and insomnia with objective short sleep duration, associated with cardiometabolic morbidity. Reduced heart rate variability has also been implicated in the pathophysiology of cardiometabolic disease; however, there are little data on whether cardiovascular function differs between patients with objective short sleep duration and near-normal sleep duration. Participants (Mage  = 49...
March 1, 2018: Journal of Sleep Research
Jari A Laukkanen, Claudio Gil S Araújo, Sudhir Kurl, Hassan Khan, Sae Y Jae, Marco Guazzi, Setor K Kunutsor
Background Preliminary evidence suggests that peak exercise oxygen pulse - peak oxygen uptake/heart rate-, a variable obtained during maximal cardiopulmonary exercise testing and a surrogate of stroke volume, is a predictor of mortality. We aimed to assess the associations of peak exercise oxygen pulse with sudden cardiac death, fatal coronary heart disease and cardiovascular disease and all-cause mortality. Design A prospective study. Methods Peak exercise oxygen pulse was assessed in a maximal cycling test at baseline in 2227 middle-aged men of the Kuopio Ischaemic Heart Disease cohort study using expired gas variables and electrocardiograms...
January 1, 2018: European Journal of Preventive Cardiology
Janine A Clayton, Matthew E Arnegard
Physicians previously perceived heart disease to be a man's disease; yet, since 1984, more women have died of ischemic heart disease. Because women who develop obstructive coronary heart disease and heart failure tend to do so 10 years later than men, cardiology clinical trials that use arbitrary age cutoffs or exclusion criteria based on comorbidities and polypharmacy often limit the pool of potential participants to a greater extent for women. Issues related to trial design and insufficient accounting for female-predominant disease patterns have contributed to low rates of enrollment of women in certain domains of cardiology research...
February 26, 2018: Clinical Cardiology
Ricardo S Oliveira, Alan R Barker, Florian Debras, Alexandra O'Doherty, Craig A Williams
Improvements in the autonomic and vascular systems are implicated in cardiovascular disease risk reduction. Baroreflex sensitivity (BRS) is composed of vascular and autonomic components. This study aimed to investigate between- and within-day reliability of BRS and its autonomic and vascular determinants in adolescents. Thirteen male adolescents (14·1 ± 0·5 y) participated in this study. For between-day reliability, participants completed four experimental visits separated by a minimum of 48-h. For within-day reliability, participants repeated BRS assessments three times in the morning with one hour between the measures...
February 23, 2018: Clinical Physiology and Functional Imaging
Zhen An, Yuefei Jin, Juan Li, Wen Li, Weidong Wu
PURPOSE OF REVIEW: Air pollution is established as an independent risk factor for cardiovascular diseases (CVDs). Ambient particulate matter (PM), a principal component of air pollutant, has been considered as a main culprit of the adverse effects of air pollution on human health. RECENT FINDINGS: Extensive epidemiological and toxicological studies have demonstrated particulate air pollution is positively associated with the development of CVDs. Short-term PM exposure can trigger acute cardiovascular events while long-term exposure over years augments cardiovascular risk to an even greater extent and can reduce life expectancy by a few years...
February 22, 2018: Current Allergy and Asthma Reports
Kellie Toohey, Kate Pumpa, Andrew McKune, Julie Cooke, Katrina D DuBose, Desmond Yip, Paul Craft, Stuart Semple
AIM: To determine the impact of low volume high-intensity interval training (LVHIIT) and continuous low to moderate-intensity exercise training (CLMIT) on cardiovascular disease (CVD) risk and health outcomes in cancer survivors. METHODS: Sedentary cancer survivors ( n = 75, aged 51 ± 12 year) within 24 months of diagnosis, were randomised into three groups for 12 wk of LVHIIT ( n = 25), CLMIT ( n = 25) or control group ( n = 25). The exercise intervention involved 36 sessions (three sessions per week)...
February 10, 2018: World Journal of Clinical Oncology
Natália da Silva Freitas Marques, Luiz Carlos de Abreu, Bárbara Vieira Dos Santos, Cândido Ferreira Rodrigues Neto, José Rener Cordeiro da Silva, Karine Ketlem de Souza Braga, Kariny da Silva Uchôa, Laila Maria Silva Moraes, Leillane Cristina de Paiva Ferreira, Natanael Guimaraes Ribeiro, Savio Lima Dos Santos, Tayná Almeida da Silva, Paulo Evaristo de Andrade, Rodrigo Daminello Raimundo
INTRODUCTION: Cardiovascular autonomic dysfunction reflex of the pathophysiology of diabetes mellitus (DM) favors an increase in morbidity and mortality related to cardiovascular events, and for this reason has been one of the most studied clinical entities. METHOD: An experimental study of a randomized clinical trial type was therefore proposed to analyze the hemodynamic and glycemic response after the practice of a rehabilitation program in patients with type 2 diabetes mellitus (T2DM)...
February 2018: Medicine (Baltimore)
Peter Riis Hansen, Christian Rimer Juhl, Jonas Lynggaard Isaksen, Gregor Borut Jemec, Christina Ellervik, Jørgen Kim Kanters
Psoriasis is a chronic inflammatory disease associated with cardiovascular disease, for example, myocardial infarction, stroke, cardiovascular death, and arrhythmias. The resting electrocardiogram may carry prognostic information, but limited evidence is available of electrocardiographic findings in subjects with psoriasis. The electrocardiographic results were compared between 1,131 subjects with self-reported psoriasis and 18,397 controls participating in the Danish General Suburban Population Study (GESUS)...
January 31, 2018: American Journal of Cardiology
Paul F Rühle, Gerhart Klein, Tatjana Rung, Hong Tiep Phan, Claudia Fournier, Rainer Fietkau, Udo S Gaipl, Benjamin Frey
OBJECTIVES: Therapies with low doses of radon have beneficial effects on patients suffering from chronic painful degenerative and inflammatory diseases. We already showed that this is accompanied by systemic immune modulations. We here focus on pain reducing effects of very low doses of radon by adding carbon dioxide water and its impact on heart rate variability (HRV), blood pressure and free radicals. METHODS: 100 patients receiving radon spa (1.200 Bq/l at 34°C or 600 Bq/l, 1 g/l CO 2 at 34°C) were monitored before and at three different time points after therapy...
February 16, 2018: Modern Rheumatology
Daniele Oliveira Dos Santos, Hugo Celso Dutra de Souza, José Antônio Baddini-Martinez, Ercy Mara Cipulo Ramos, Ada Clarice Gastaldi
BACKGROUND: Bronchiectasis is characterized by pathological and irreversible bronchial dilatation caused by the inefficient mucus and microorganism clearance and progression of inflammatory processes. The most frequent characteristic is the increase in bronchial mucus production resulting in slower transport and damage to the mucociliary transport. AIMS: To evaluate the effects of exercise on mucus transport, inflammation, and resistance of the respiratory and autonomic nervous systems and subsequent effects on quality of life in patients with bronchiectasis who are enrolled in a pulmonary rehabilitation program...
February 2018: Medicine (Baltimore)
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