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https://www.readbyqxmd.com/read/28214012/the-endothelium-solves-problems-that-endothelial-cells-do-not-know-exist
#1
REVIEW
John G McCarron, Matthew D Lee, Calum Wilson
The endothelium is the single layer of cells that lines the entire cardiovascular system and regulates vascular tone and blood-tissue exchange, recruits blood cells, modulates blood clotting, and determines the formation of new blood vessels. To control each function, the endothelium uses a remarkable sensory capability to continuously monitor vanishingly small changes in the concentrations of many simultaneously arriving extracellular activators that each provides cues to the physiological state. Here we suggest that the extraordinary sensory capabilities of the endothelium do not come from single cells but from the combined activity of a large number of endothelial cells...
February 14, 2017: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/28212927/patients-with-chronic-dizziness-following-traumatic-head-injury-typically-have-multiple-diagnoses-involving-combined-peripheral-and-central-vestibular-dysfunction
#2
Q Arshad, R E Roberts, H Ahmad, R Lobo, M Patel, T Ham, D J Sharp, B M Seemungal
OBJECTIVE: We hypothesised that chronic vestibular symptoms (CVS) of imbalance and dizziness post-traumatic head injury (THI) may relate to: (i) the occurrence of multiple simultaneous vestibular diagnoses including both peripheral and central vestibular dysfunction in individual patients increasing the chance of missed diagnoses and suboptimal treatment; (ii) an impaired response to vestibular rehabilitation since the central mechanisms that mediate rehabilitation related brain plasticity may themselves be disrupted...
February 7, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28212522/taking-up-the-cudgels-for-the-traditional-reactive-oxygen-and-nitrogen-species-detection-assays-and-their-use-in-the-cardiovascular-system
#3
REVIEW
Andreas Daiber, Matthias Oelze, Sebastian Steven, Swenja Kröller-Schön, Thomas Münzel
Reactive oxygen and nitrogen species (RONS such as H2O2, nitric oxide) confer redox regulation of essential cellular functions (e.g. differentiation, proliferation, migration, apoptosis), initiate and catalyze adaptive stress responses. In contrast, excessive formation of RONS caused by impaired break-down by cellular antioxidant systems and/or insufficient repair of the resulting oxidative damage of biomolecules may lead to appreciable impairment of cellular function and in the worst case to cell death, organ dysfunction and severe disease phenotypes of the entire organism...
February 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28211551/eating-habits-and-the-risk-of-cardiovascular-disease-in-patients-with-recurrent-depressive-disorders
#4
Ewa Stefańska, Agnieszka Wendołowicz, Urszula Cwalina, Beata Konarzewska, Napoleon Waszkiewicz, Lucyna Ostrowska
OBJECTIVES: The aim of the research was to assess the fatty acid content and atherogenicity of daily food rations in patients with recurrent depressive disorders in the aspect of risk of developing cardiovascular disease. METHODS: The study included 126 persons (62 persons with diagnosed recurrent depressive disorders and 64 healthy volunteers). A 24-hour recall was used in the quantitative assessment of the diet. Anthropometric and chemical measurements as well as body composition analysis were used to assess the nutritional status...
December 23, 2016: Psychiatria Polska
https://www.readbyqxmd.com/read/28209177/is-posture-related-craniospinal-compliance-shift-caused-by-jugular-vein-collapse-a-theoretical-analysis
#5
Manuel Gehlen, Vartan Kurtcuoglu, Marianne Schmid Daners
BACKGROUND: Postural changes are related to changes in cerebrospinal fluid (CSF) dynamics. While sitting up leads to a decrease in cranial CSF pressure, it also causes shifts in the craniospinal CSF volume and compliance distribution. We hypothesized that jugular vein collapse in upright posture is a major contributor to these shifts in CSF volume and compliance. METHODS: To test this hypothesis, we implemented a mathematical lumped-parameter model of the CSF system and the relevant parts of the cardiovascular system...
February 16, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28208969/acute-presentation-of-juvenile-dermatomyositis-with-subclinical-cardiac-involvement-a-rare-case
#6
Rhythm Khera, Shrayash Khare, Shailendra Kumar Singh
Cardiac involvements are common in patients with Dermatomyositis, most of which are not severe enough to present definite or readily observable symptoms. However, Cardiovascular (CVS) manifestations constitute a major cause of death in these patients. The most frequently reported clinically evident of CVS manifestations in-patient of dermatomyositis are Congestive Heart Failure (CHF), conduction aberrations, that may predispose to complete heart block and coronary artery disease. The principal pathophysiological mechanisms that may produce these cardiac manifestations involve coronary artery disease as well as small vessels vasculitis of the myocardium...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208599/medical%C3%A2-yoga%C3%A2-therapy
#7
REVIEW
Ina Stephens
Medical yoga is defined as the use of yoga practices for the prevention and treatment of  medical conditions. Beyond the physical elements of yoga, which are important and effective for  strengthening  the  body,  medical  yoga  also  incorporates  appropriate  breathing  techniques,  mindfulness, and meditation in order to achieve the maximum benefits. Multiple studies have  shown that yoga can positively impact the body in many ways, including helping to regulate blood  glucose levels, improve musculoskeletal ailments and keeping the cardiovascular system in tune...
February 10, 2017: Children
https://www.readbyqxmd.com/read/28207933/chorionic-villus-sampling-in-the-cell-free-dna-aneuploidy-screening-era-careful-selection-criteria-can-maximise-the-clinical-utility-of-screening-and-invasive-testing
#8
Stefan C Kane, Karen L Reidy, Fiona Norris, Deborah L Nisbet, Louise H Kornman, Ricardo Palma-Dias
OBJECTIVES: To quantify the impact of cell-free DNA (cfDNA) screening on chorionic villus sampling (CVS) test indications and outcomes in a tertiary maternity service. METHODS: Retrospective cohort study of all CVS procedures performed for any indication on singleton pregnancies at The Royal Women's Hospital, Melbourne, and at Women's Ultrasound Melbourne, Australia, between August 2008 and February 2015. Karyotypes were classified according to pathogenicity and detectability by standard cell-free DNA screening panels...
February 16, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28207340/impact-of-cvs-pharmacy-s-discontinuance-of-tobacco-sales-on-cigarette-purchasing-2012-2014
#9
Jennifer M Polinski, Benjamin Howell, Michael A Gagnon, Steven M Kymes, Troyen A Brennan, William H Shrank
OBJECTIVES: To assess the impact of CVS Health's discontinuation of tobacco sales on cigarette purchasing. METHODS: We used households' purchasing data to assess rates at which households stopped cigarette purchasing for at least 6 months during September 2014 to August 2015 among 3 baseline groups: CVS-exclusive cigarette purchasers, CVS+ (CVS and other retailers), and other-exclusive (only non-CVS retailers). In state-level analyses using retailers' point-of-sale purchase data, an interrupted time series compared cigarette purchasing before (January 2012 to August 2014) and after (September 2014 to April 2015) tobacco removal in 13 intervention states with CVS market share of at least 15% versus 3 control states with no CVS stores...
February 16, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28205281/growth-hormone-modulates-in-vitro-endothelial-cell-migration-and-formation-of-capillary-like-structures
#10
Cícero Fagner Messias de Lima, Maria Danielma Dos Santos Reis, Fernando Wagner da Silva Ramos, Silvana Ayres-Martins, Salete Smaniotto
The generation of new blood vessels is a complex process mediated by a variety of growth factors, and the growth hormone (GH) has been shown to act as a proangiogenic factor. In fact, human GH deficiency or excess are associated with endothelial dysfunction. Moreover, mouse models have revealed the action of GH in both tissue repair and in the microvascular circulation of normal tissues. In this study, we investigated the in vitro effects of GH on endothelial cells. Using a murine endothelioma cell line (tEnd...
February 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28205280/within-and-between-session-reproducibility-of-gaba-measurements-with-mr-spectroscopy
#11
Maiken K Brix, Lars Ersland, Kenneth Hugdahl, Gerard E Dwyer, Renate Grüner, Ralph Noeske, Mona K Beyer, Alexander R Craven
PURPOSE: The reproducibility of the MEGA-PRESS (MEshcher-GArwood Point RESolved Spectroscopy) MR spectroscopy sequence for the measurement of gamma- aminobutyric acid (GABA) is addressed, focusing on optimizing the number of repetitions at two voxel locations in the human brain and associated possibilities in analysis tools. MATERIALS AND METHODS: Two 20-min MEGA-PRESS acquisitions were run (echo time = 68 ms, repetition time = 1800 ms, repetitions = 328): one from a 21 mL volume in the anterior cingulate cortex (ACC) and one from a 22 mL volume in the left Broca's area in 21 healthy male volunteers (age 32 years ± 6[SD])...
February 15, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28205257/status-of-internal-quality-control-for-thyroid-hormones-immunoassays-from-2011-to-2016-in-china
#12
Shishi Zhang, Wei Wang, Haijian Zhao, Falin He, Kun Zhong, Shuai Yuan, Zhiguo Wang
BACKGROUND: Internal quality control (IQC) plays a key role in the evaluation of precision performance in clinical laboratories. This report aims to present precision status of thyroid hormones immunoassays from 2011 to 2016 in China. METHODS: Through Clinet-EQA reporting system, IQC information of Triiodothyronine and Thyroxine in the form of free and total (FT3, TT3, FT4, TT4), as well as Thyroid Stimulating Hormone (TSH) were collected from participant laboratories submitting IQC data in February, 2011-2016...
February 15, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28194103/reassessment-of-non-monosynaptic-excitation-from-the-motor-cortex-to-motoneurons-in-single-motor-units-of-the-human-biceps-brachii
#13
Tsuyoshi Nakajima, Toshiki Tazoe, Masanori Sakamoto, Takashi Endoh, Satoshi Shibuya, Leonardo A Elias, Rinaldo A Mezzarane, Tomoyoshi Komiyama, Yukari Ohki
Corticospinal excitation is mediated by polysynaptic pathways in several vertebrates, including dexterous monkeys. However, indirect non-monosynaptic excitation has not been clearly observed following transcranial electrical stimulation (TES) or cervicomedullary stimulation (CMS) in humans. The present study evaluated indirect motor pathways in normal human subjects by recording the activities of single motor units (MUs) in the biceps brachii (BB) muscle. The pyramidal tract was stimulated with weak TES, CMS, and transcranial magnetic stimulation (TMS) contralateral to the recording side...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28192239/super-silac-mix-coupled-with-sim-aims-assays-for-targeted-verification-of-phosphopeptides-discovered-in-a-large-scale-phosphoproteome-analysis-of-hepatocellular-carcinoma
#14
Yu-Tsun Lin, Kun-Yi Chien, Chia-Chun Wu, Wen-Yu Chang, Lichieh Julie Chu, Min-Chi Chen, Chau-Ting Yeh, Jau-Song Yu
: Plentiful studies have established a close association between aberrant phosphorylation and hepatocellular carcinoma (HCC). Here, we applied a quantitative phosphoproteomics platform combining dimethylation labeling and online 3D strong cation exchange chromatography (SCX)-titanium oxide (TiO2)/RP-LTQ-Orbitrap to compare phosphoproteomes between three pairs of HCC tissues and non-tumor counterparts. This analysis yielded 7868 quantifiable phosphopeptides and numerous up- or down-regulated candidates...
February 9, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28189105/determination-of-methylmalonyl-coenzyme-a-by-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-for-measuring-propionyl-coenzyme-a-carboxylase-activity-in-patients-with-propionic-acidemia
#15
Kana Gotoh, Yoko Nakajima, Go Tajima, Yoriko Watanabe, Yuji Hotta, Tomoya Kataoka, Yoshihiro Kawade, Naruji Sugiyama, Tetsuya Ito, Kazunori Kimura, Yasuhiro Maeda
Propionic acidemia (PA) is an inherited metabolic disease caused by low activity of propionyl coenzyme A (CoA) carboxylase (PCC), which metabolizes propionyl-CoA into methylmalonyl-CoA. Although many patients with PA have been identified by tandem mass spectrometry since the test was first included in neonatal mass screening in the 1990s, the disease severity varies. Thus, determining the specific level of PCC activity is considered to be helpful to grasp the severity of PA. We developed a new PCC assay method by the determination of methylmalonyl-CoA, which is formed by an enzyme reaction using peripheral lymphocytes, based on ultra high-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS)...
February 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28188926/redox-modification-of-caveolar-proteins-in-the-cardiovascular-system-role-in-cellular-signalling-and-disease
#16
REVIEW
Kristen J Bubb, Asa Birna Birgisdottir, Owen Tang, Thomas Hansen, Gemma A Figtree
Rapid and coordinated release of a variety of reactive oxygen species (ROS) such as superoxide (O2(.-)), hydrogen peroxide (H2O2) and peroxynitrite, in specific microdomains, play a crucial role in cell signalling in the cardiovascular system. These reactions are mediated by reversible and functional modifications of a wide variety of key proteins. Dysregulation of this oxidative signaling occurs in almost all forms of cardiovascular disease (CVD), including at the very early phases. Despite the heavily publicized failure of "antioxidants" to improve CVD progression, pharmacotherapies such as those targeting the renin-angiotensin system, or statins, exert at least part of their large clinical benefit via modulating cellular redox signalling...
February 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28188789/biomarker-identification-and-pathway-analysis-of-preeclampsia-based-on-serum-metabolomics
#17
Tingting Chen, Ping He, Yong Tan, Dongying Xu
Preeclampsia presents serious risk of both maternal and fetal morbidity and mortality. Biomarkers for the detection of preeclampsia are critical for risk assessment and targeted intervention. The goal of this study is to screen potential biomarkers for the diagnosis of preeclampsia and to illuminate the pathogenesis of preeclampsia development based on the differential expression network. Two groups of subjects, including healthy pregnant women, subjects with preeclampsia, were recruited for this study. The metabolic profiles of all of the subjects' serum were obtained by liquid chromatography quadruple time-of-flight mass spectrometry...
February 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28188470/modeling-the-effect-of-tilting-passive-leg-exercise-and-functional-electrical-stimulation-on-the-human-cardiovascular-system
#18
Amirehsan Sarabadani Tafreshi, Jan Okle, Verena Klamroth-Marganska, Robert Riener
Long periods of bed rest negatively affect the human body organs, notably the cardiovascular system. To avert these negative effects and promote functional recovery in patients dealing with prolonged bed rest, the goal is to mobilize them as early as possible while controlling and stabilizing their cardiovascular system. A robotic tilt table allows early mobilization by modulating body inclination, automated passive leg exercise, and the intensity of functional electrical stimulation applied to leg muscles (inputs)...
February 10, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28187814/neurocardiology
#19
N D Osteraas, V H Lee
Neurocardiology refers to the interplay between the nervous system and the cardiovascular system. Stress-related cardiomyopathy exemplifies the brain-heart connection and occurs in several conditions with acute brain injury that share oversympathetic activation. The brain's influences on the heart can include elevated cardiac markers, arrhythmias, repolarization abnormalities on electrocardiogram, myocardial necrosis, and autonomic dysfunction. The neurogenic stunned myocardium in aneurysmal subarachnoid hemorrhage represents one end of the spectrum, and is associated with an explosive rise in intracranial pressure that results in excess catecholamine state and possibly CBN...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28186992/autophagy-is-highly-targeted-among-host-comparative-proteomes-during-infection-with-different-virulent-rabv-strains
#20
Ling Li, Hongli Jin, Hualei Wang, Zengguo Cao, Na Feng, Jianzhong Wang, Yongkun Zhao, Xuexing Zheng, Pengfei Hou, Nan Li, Hang Chi, Pei Huang, Cuicui Jiao, Qian Li, Lina Wang, Tiecheng Wang, Weiyang Sun, Yuwei Gao, Changchun Tu, Guixue Hu, Songtao Yang, Xianzhu Xia
Rabies virus (RABV) is a neurotropic virus that causes serious disease in humans and animals worldwide. It has been reported that different RABV strains can result in divergent prognoses in animal model. To identify host factors that affect different infection processes, a kinetic analysis of host proteome alterations in mouse brains infected with different virulent RABV strains was performed using isobaric tags for a relative and absolute quantification (iTRAQ)-liquid chromatography-tandem mass spectrometry (LC-MS/MS) proteomics approach, and this analysis identified 147 differentially expressed proteins (DEPs) between the pathogenic challenge virus standard (CVS)-11 strain and the attenuated SRV9 strain...
February 8, 2017: Oncotarget
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