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Brain heart interaction

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https://www.readbyqxmd.com/read/28715351/interacting-influences-of-gender-and-chronic-pain-status-on-parasympathetically-mediated-heart-rate-variability-in-adolescents-and-young-adults
#1
Lynn S Walker, Amanda L Stone, Craig A Smith, Stephen Bruehl, Judy Garber, Martina Puzanovova, André Diedrich
Considerable research links chronic pain to autonomic nervous system (ANS) dysfunction, specifically low heart rate variability (HRV) mediated by reduced parasympathetic activity. However, little is known about factors that influence ANS function in chronic pain. The ANS is the primary pathway for brain-gut communication, making it of particular interest in gastrointestinal disorders, such as irritable bowel syndrome, characterized by functional abdominal pain (FAP). We evaluated the relation of sex, pain severity, and psychological stress to ANS function in adolescents/young adults from a database of pediatric FAP and control participants enrolled 8 years earlier in a prospective study of pain...
August 2017: Pain
https://www.readbyqxmd.com/read/28712998/brain-natriuretic-peptide-mediates-the-prognostic-role-of-renal-function-towards-10-year-cardiovascular-mortality-in-patients-with-acute-coronary-syndrome-the-hhf-study-2006-2016
#2
Christina Chrysohoou, George Georgiopoulos, Hara Kosyfa, Ioanna Kotsopoulou Haritou, Matina Kouvari, Androniki Filippou, Stelios Iosifidis, Eleftherios Tsiamis, Panagiotis Aggelopoulos, Christos Pitsavos, Dimitris Tousoulis
BACKGROUND/INTRODUCTION: Risk stratification in chronic heart failure (HF) remains a challenge. Renal function and B-natriuretic peptide (BNP) might confer predictive value towards long-term mortality in HF patients after an acute coronary syndrome (ACS). METHODS: From May 2006 to March 2009, 1,000 consecutive patients who were hospitalized with ACS diagnosis were enrolled in the study. In 2016, the 10-year follow-up (2006-2016) was performed in 745 participants...
July 13, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28710424/takotsubo-syndrome-predictable-from-brain-imaging-data
#3
Carina Klein, Thierry Hiestand, Jelena-Rima Ghadri, Christian Templin, Lutz Jäncke, Jürgen Hänggi
Takotsubo syndrome (TTS) is characterized by acute left ventricular dysfunction, with a hospital-mortality rate similar to acute coronary syndrome (ACS). However, the aetiology of TTS is still unknown. In the present study, a multivariate pattern analysis using machine learning with multimodal magnetic resonance imaging (MRI) data of the human brain of TTS patients and age- and gender-matched healthy control subjects was performed. We found consistent structural and functional alterations in TTS patients compared to the control group...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698147/rip2-deficiency-attenuates-cardiac-hypertrophy-inflammation-and-fibrosis-in-pressure-overload-induced-mice
#4
Cui-Hua Zhao, Xiang Ma, Hong-Yu Guo, Peng Li, Hong-Yang Liu
Although the pathological cardiac hypertrophy presents a leading cause of morbidity and mortality worldwide, our knowledge of the molecular mechanisms underlying the disease is still poor. Here, we reported that receptor-interacting serine/threonine-protein kinase 2 (RIP2), promoting pro-inflammatory gene expression, enhanced the pathological cardiac hypertrophy in animals. The effects of RIP2 on the cardiac hypertrophy triggered by pathological stimuli have not been fully investigated. In our study, mice were subjected to aortic banding (AB) surgery to explore the pathological, echocardiographic and molecular mechanisms...
July 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28673044/ctenopharyngodon-idella-ikk%C3%AE-interacts-with-pkr-and-i%C3%AE%C2%BAb%C3%AE
#5
Haizhou Wang, Qun Xu, Xiaowen Xu, Yousheng Hu, Qunhao Hou, Youlin Zhu, Chengyu Hu
Inhibitor of nuclear factor kappa-B kinase β (IKKβ) is a subunit of the IKK complex. It can activate the NF-κB pathway through phosphorylating IκB in response to a wide range of stimuli. In the present study, an IKKβ gene from grass carp (Ctenopharyngodon idella; KT282114) was cloned and identified by homologous cloning and rapid-amplification of cDNA ends (RACE) technique. The complete CiIKKβ cDNA is 3428 bp in length, with the longest open reading frame (ORF) of 2337 bp encoding a polypeptide of 778 amino acids...
June 29, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28651745/the-neural-monitoring-of-visceral-inputs-rather-than-attention-accounts-for-first-person-perspective-in-conscious-vision
#6
REVIEW
Catherine Tallon-Baudry, Florence Campana, Hyeong-Dong Park, Mariana Babo-Rebelo
Why should a scientist whose aim is to unravel the neural mechanisms of perception consider brain-body interactions seriously? Brain-body interactions have traditionally been associated with emotion, effort, or stress, but not with the "cold" processes of perception and attention. Here, we review recent experimental evidence suggesting a different picture: the neural monitoring of bodily state, and in particular the neural monitoring of the heart, affects visual perception. The impact of spontaneous fluctuations of neural responses to heartbeats on visual detection is as large as the impact of explicit manipulations of spatial attention in perceptual tasks...
June 3, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28644779/cellular-light-scattering-for-the-identification-of-bacteria-and-its-application-to-the-identification-of-staphylococcus
#7
David L Haavig, Kaylagh R Hollen, Abbey E Debruin, Shelbi R Lisecki, Nicole C Shoup, Mickey J H Stimac, Anthony M Treloar, Zachary N Jodoin, Margaret S Bohm, Josh S Sharp
Rapid identification of bacteria is critical in clinical and food safety applications. This paper describes anovel instrument and data analysis method for identifying bacteria based on the measurement of laser light scattering as the beam interacts with bacterial cells suspended in water. A description of the technology is followed by an identification performance study for a set of strains from the genus Staphylococcus (the inclusive target organisms) and a set of non-Staphylococcus strains (the exclusive organisms)...
June 23, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28642732/autonomic-function-impairment-and-brain-perfusion-deficit-in-parkinson-s-disease
#8
Wei-Che Lin, Pei-Chin Chen, Chih-Cheng Huang, Nai-Wen Tsai, Hsiu-Ling Chen, Hung-Chen Wang, Kun-Hsien Chou, Meng-Hsiang Chen, Yi-Wen Chen, Cheng-Hsien Lu
INTRODUCTION: Autonomic disorders have been recognized as important Parkinson's disease (PD) components. Some vulnerable structures are related to the central autonomic network and have also been linked to autonomic function alterations. The aims of the study are to evaluate the severity of the autonomic dysfunction and the cortical hypoperfusion using arterial spin labeling (ASL) MRI. And then, possible relationships of significant between-group differences in perfusion pattern to clinical variables and autonomic functions were examined to determine the pharmaceutical effects of dopaminergic treatment on cerebral blood flow (CBF) in patients with PD...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28625550/maternal-exposure-to-western-diet-affects-adult-body-composition-and-voluntary-wheel-running-in-a-genotype-specific-manner-in-mice
#9
Layla Hiramatsu, Jarren C Kay, Zoe Thompson, Jennifer M Singleton, Gerald C Claghorn, Ralph L Albuquerque, Brittany Ho, Brett Ho, Gabriela Sanchez, Theodore Garland
Some human diseases, including obesity, Type II diabetes, and numerous cancers, are thought to be influenced by environments experienced in early life, including in utero. Maternal diet during the perinatal period may be especially important for adult offspring energy balance, potentially affecting both body composition and physical activity. This effect may be mediated by the genetic background of individuals, including, for example, potential "protective" mechanisms for individuals with inherently high levels of physical activity or high basal metabolic rates...
June 15, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28624483/biomarker-profiles-of-acute%C3%A2-heart%C3%A2-failure%C3%A2-patients-with-a%C3%A2-mid-range-ejection%C3%A2-fraction
#10
Jasper Tromp, Mohsin A F Khan, Robert J Mentz, Christopher M O'Connor, Marco Metra, Howard C Dittrich, Piotr Ponikowski, John R Teerlink, Gad Cotter, Beth Davison, John G F Cleland, Michael M Givertz, Daniel M Bloomfield, Dirk J Van Veldhuisen, Hans L Hillege, Adriaan A Voors, Peter van der Meer
OBJECTIVES: In this study, the authors used biomarker profiles to characterize differences between patients with acute heart failure with a midrange ejection fraction (HFmrEF) and compare them with patients with a reduced (heart failure with a reduced ejection fraction [HFrEF]) and preserved (heart failure with a preserved ejection fraction [HFpEF]) ejection fraction. BACKGROUND: Limited data are available on biomarker profiles in acute HFmrEF. METHODS: A panel of 37 biomarkers from different pathophysiological domains (e...
July 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28608863/nicotine-affects-hydrogen-sulfide-concentrations-in-mouse-kidney-and-heart-but-not-in-brain-and-liver-tissues
#11
Jerzy Wiliński, Bogdan Wiliński, Eugeniusz Somogyi, Joanna Piotrowska, Tomasz Kameczura, Małgorzata Zygmunt
Nicotine, a potent parasympathomimetic alkaloid with stimulant effects, is contributing to addictive properties of tobacco smoking and is though used in the smoking cessation therapy. Hydrogen sulfide (H2S) is involved in physiology and pathophysiology of various systems in mammals. The interactions between nicotine and H2S are not fully recognized. The aim of the study is to assess the influence of nicotine on the H2S tissue concentrations in different mouse organs. Adult CBA male mice were administered intraperitoneally 1...
2017: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/28605830/sustained-intracellular-acidosis-triggers-the-na-h-exchager-1-activation-in-glutamate-excitotoxicity
#12
Bo Kyung Lee, Yi-Sook Jung
The Na(+)/H(+) exchanger-1 (NHE-1) is a ubiquitously expressed pH-regulatory membrane protein that functions in the brain, heart, and other organs. It is increased by intracellular acidosis through the interaction of intracellular H(+) with an allosteric modifier site in the transport domain. In the previous study, we reported that glutamate-induced NHE-1 phosphorylation mediated by activation of protein kinase C-β (PKC-β) in cultured neuron cells via extracellular signal-regulated kinases (ERK)/p90 ribosomal s6 kinases (p90RSK) pathway results in NHE-1 activation...
June 14, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28588075/cerebral-perfusion-and-the-risk-of-dementia-a-population-based-study
#13
Frank J Wolters, Hazel I Zonneveld, Albert Hofman, Aad van der Lugt, Peter J Koudstaal, Meike W Vernooij, M Arfan Ikram
Background -Cerebral hypoperfusion has previously been associated with mild cognitive impairment and dementia in various cross-sectional studies, but whether hypoperfusion precedes neurodegeneration is unknown. We prospectively determined the association of cerebral perfusion with subsequent cognitive decline and development of dementia. Methods -Between 2005 and 2012, we measured cerebral blood flow by 2D phase-contrast magnetic resonance imaging (MRI) in non-demented participants of the population-based Rotterdam Study...
June 6, 2017: Circulation
https://www.readbyqxmd.com/read/28554961/atrial-fibrillation-is-associated-with-anterior-predominant-white-matter-lesions-in-patients-presenting-with-embolic-stroke
#14
Yunis Mayasi, Johanna Helenius, David D McManus, Richard P Goddeau, Adalia H Jun-O'Connell, Majaz Moonis, Nils Henninger
OBJECTIVE: High white matter hyperintensity (WMH) burden is commonly found on brain MRI among patients with atrial fibrillation (AF). However, whether the link between AF and WMH extends beyond a common vascular risk factor profile is uncertain. We sought to determine whether AF relates to a distinct WMH lesion pattern which may suggest specific underlying pathophysiological relationships. METHODS: We retrospectively analysed a cohort of consecutive patients presenting with embolic stroke at an academic hospital and tertiary referral centre between March 2010 and March 2014...
May 27, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28554327/vdac-targeted-drugs-affecting-cytoprotection-and-mitochondrial-physiology-in-cerebrovascular-and-cardiovascular-diseases
#15
Andonis Karachitos, Joaquin Jordan, Hanna Kmita
Cerebrovascular and cardiovascular diseases are caused by impairment of the brain and/or heart circulation. Insufficient blood flow results in a decrease in oxygen delivery (ischemia) which affects mitochondria functioning and consequently lead to insufficient ATP production. Moreover, ischemia combined with the following reperfusion may result in further mitochondria dysfunction coexisting with lower ATP synthesis and higher ROS generation This, in turn, have direct implications in the pathogenesis of cerebrovascular and cardiovascular diseases...
May 29, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28549782/central-trkb-blockade-attenuates-icv-angiotensin-ii-hypertension-and-sympathetic-nerve-activity-in-male-sprague-dawley-rats
#16
Bryan K Becker, Hanjun Wang, Irving H Zucker
Increased sympathetic nerve activity and the activation of the central renin-angiotensin system are commonly associated with cardiovascular disease states such as hypertension and heart failure, yet the precise mechanisms contributing to the long-term maintenance of this sympatho-excitation are incompletely understood. Due to the established physiological role of neurotrophins contributing toward neuroplasticity and neuronal excitability along with recent evidence linking the renin-angiotensin system and brain-derived neurotrophic factor (BDNF) along with its receptor (TrkB), it is likely the two systems interact to promote sympatho-excitation during cardiovascular disease...
July 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28544880/systems-wide-studies-uncover-commander-a-multiprotein-complex-essential-to-human-development
#17
REVIEW
Anna L Mallam, Edward M Marcotte
Recent mass spectrometry maps of the human interactome independently support the existence of a large multiprotein complex, dubbed "Commander." Broadly conserved across animals and ubiquitously expressed in nearly every human cell type examined thus far, Commander likely plays a fundamental cellular function, akin to other ubiquitous machines involved in expression, proteostasis, and trafficking. Experiments on individual subunits support roles in endosomal protein sorting, including the trafficking of Notch proteins, copper transporters, and lipoprotein receptors...
May 24, 2017: Cell Systems
https://www.readbyqxmd.com/read/28534818/a-review-of-the-impact-of-maternal-obesity-on-the-cognitive-function-and-mental-health-of-the-offspring
#18
REVIEW
Laura Contu, Cheryl A Hawkes
Globally, more than 20% of women of reproductive age are currently estimated to be obese. Children born to obese mothers are at higher risk of developing obesity, coronary heart disease, diabetes, stroke, and asthma in adulthood. Increasing clinical and experimental evidence suggests that maternal obesity also affects the health and function of the offspring brain across the lifespan. This review summarizes the current findings from human and animal studies that detail the impact of maternal obesity on aspects of learning, memory, motivation, affective disorders, attention-deficit hyperactivity disorder, autism spectrum disorders, and neurodegeneration in the offspring...
May 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28522333/development-of-qsars-for-parameterizing-physiology-based-toxicokinetic-models
#19
Dimosthenis Α Sarigiannis, Krystalia Papadaki, Periklis Kontoroupis, Spyros P Karakitsios
A Quantitative Structure Activity Relationship (QSAR) model was developed in order to predict physicochemical and biochemical properties of industrial chemicals of various groups. This model was based on the solvation equation, originally proposed by Abraham. In this work Abraham's solvation model got parameterized using artificial intelligence techniques such as artificial neural networks (ANNs) for the prediction of partitioning into kidney, heart, adipose, liver, muscle, brain and lung for the estimation of the bodyweight-normalized maximal metabolic velocity (Vmax) and the Michaelis - Menten constant (Km)...
May 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28474618/respiratory-sinus-arrhythmia-as-a-non-invasive-index-of-brain-heart-interaction-in-stress
#20
REVIEW
Ingrid Tonhajzerova, Michal Mestanik, Andrea Mestanikova, Alexander Jurko
Respiratory sinus arrhythmia (RSA) is accepted as a peripheral marker of cardiac-linked parasympathetic regulation. According to polyvagal theory, the RSA is also considered as the index of emotion regulation. The neurovisceral integration model posits that parasympathetic modulation of the heart marked by RSA is related to complex nervous regulation associated with emotional and cognitive processing. From this perspective, high resting RSA amplitude associated with a greater withdrawal during stressors and subsequent recovery could represent a flexible and adaptive physiological response system to a challenge...
December 2016: Indian Journal of Medical Research
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