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https://www.readbyqxmd.com/read/29342057/audiologic-natural-history-of-small-volume-cochleovestibular-schwannomas-in-neurofibromatosis-type-2
#1
Alvin T deTorres, Carmen C Brewer, Chris K Zalewski, Kelly A King, Robert Walker, Gretchen C Scott, Ashok R Asthagiri, Prashant Chittiboina, Hung Jeffrey Kim
OBJECTIVE: To characterize the audiometric natural progression in patient-ears with small volume (<1,000 mm), treatment-naïve cochleovestibular schwannomas (CVSs) in Neurofibromatosis Type 2 (NF2). STUDY DESIGN: Prospective, longitudinal cohort study. SETTING: Quaternary medical research institute. PATIENTS: One hundred eleven ears in 71 NF2 patients with small, treatment-naïve CVSs observed from July 2006 to July 2016...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29338128/clinical-experience-of-laboratory-follow-up-with-non-invasive-prenatal-testing-using-cell-free-dna-and-positive-microdeletion-results-in-349-cases
#2
S Schwartz, M Kohan, R Pasion, P R Papenhausen, L D Platt
OBJECTIVE: Screening via non-invasive prenatal testing (NIPT) involving the analysis of cell-free DNA (cfDNA) from plasma has become readily available to screen for chromosomal and DNA aberrations through maternal blood. This report reviews a laboratory's experience with follow-up of positive NIPT screens for microdeletions. METHODS: Patients that were screen positive by NIPT for a microdeletion involving 1p, 4p, 5p, 15q, or 22q, who underwent diagnostic studies by either CVS or amniocentesis were evaluated...
January 16, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29337890/subcellular-reactive-oxygen-species-ros-in-cardiovascular-pathophysiology
#3
REVIEW
Sarah Aldosari, Maan Awad, Elizabeth O Harrington, Frank W Sellke, M Ruhul Abid
There exist two opposing perspectives regarding reactive oxygen species (ROS) and their roles in angiogenesis and cardiovascular system, one that favors harmful and causal effects of ROS, while the other supports beneficial effects. Recent studies have shown that interaction between ROS in different sub-cellular compartments plays a crucial role in determining the outcomes (beneficial vs. deleterious) of ROS exposures on the vascular system. Oxidant radicals in one cellular organelle can affect the ROS content and function in other sub-cellular compartments in endothelial cells (ECs)...
January 16, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29336212/simulated-microgravity-impairs-cardiac-autonomic-neurogenesis-from-neural-crest-cells
#4
Konstantinos E Hatzistergos, Zhijie Jiang, Krystalenia Valasaki, Lauro M Takeuchi, Wayne Balkan, Preethi Atluri, Dieter Saur, Barbara Seidler, Nicholas Tsinoremas, Darcy DiFede, Joshua M Hare
Microgravity-induced alterations in the autonomic nervous system (ANS) contribute to derangements in both the mechanical and electrophysiologic function of the cardiovascular system, leading to severe symptoms in humans following space travel. Because the ANS forms embryonically from neural crest progenitors (NCs), we hypothesized that microgravity can impair NC derived cardiac structures. Accordingly, we conducted in vitro simulated microgravity experiments employing NC genetic lineage-tracing in mice with cKitCreERT2/+, Isl1nLacZ and Wnt1-Cre reporter alleles...
January 16, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29335026/congenital-anomalies-in-neurofibromatosis-1-a-retrospective-register-based-total-population-study
#5
Jussi Leppävirta, Roope A Kallionpää, Elina Uusitalo, Tero Vahlberg, Minna Pöyhönen, Juha Peltonen, Sirkku Peltonen
BACKGROUND: Neurofibromatosis type 1 (NF1) is a dominantly inherited Rasopathy caused by mutations in the NF1 gene on chromosome 17. NF1 has been connected to congenital anomalies, e.g., in the skeletal and cardiovascular systems, but the overall incidence of anomalies is unknown. In this retrospective register-based total population study conducted in Finland, the congenital anomalies in NF1 were evaluated. METHODS: One thousand four hundred ten patients with NF1 were identified by searching the medical records related to inpatient and outpatient hospital visits of patients with an associated diagnosis for NF1 in 1987-2011...
January 15, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29335024/sex-differences-in-the-late-first-trimester-human-placenta-transcriptome
#6
Tania L Gonzalez, Tianyanxin Sun, Alexander F Koeppel, Bora Lee, Erica T Wang, Charles R Farber, Stephen S Rich, Lauren W Sundheimer, Rae A Buttle, Yii-Der Ida Chen, Jerome I Rotter, Stephen D Turner, John Williams, Mark O Goodarzi, Margareta D Pisarska
BACKGROUND: Development of the placenta during the late first trimester is critical to ensure normal growth and development of the fetus. Developmental differences in this window such as sex-specific variation are implicated in later placental disease states, yet gene expression at this time is poorly understood. METHODS: RNA-sequencing was performed to characterize the transcriptome of 39 first trimester human placentas using chorionic villi following genetic testing (17 females, 22 males)...
January 15, 2018: Biology of Sex Differences
https://www.readbyqxmd.com/read/29331689/baicalin-inhibits-pressure-overload-induced-cardiac-fibrosis-through-regulating-ampk-tgf-%C3%AE-smads-signaling-pathway
#7
Yichuan Xiao, Jiantao Ye, Ying Zhou, Junjun Huang, Xiawen Liu, Biyun Huang, Liu Zhu, Bo Wu, Genshui Zhang, Yi Cai
AMP-activated protein kinase (AMPK) is a central regulator of multiple metabolic pathways. It has been shown that activation of AMPK could inhibit fibroblast proliferation and extracellular matrix (ECM) accumulation, thereby suppressing cardiac fibrosis. Baicalin, the major component found in skullcap, possesses multiple protective effects on the cardiovascular system. However, little is known about the effect of baicalin on cardiac fibrosis and the molecular mechanism by which baicalin exerts its anti-fibrotic effects has not been investigated...
January 10, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29331282/development-testing-and-implementation-of-a-training-curriculum-for-nonphysician-health-workers-to-reduce-cardiovascular-disease
#8
Maheer Khan, Pablo Lamelas, Hadi Musa, Jared Paty, Tara McCready, Robby Nieuwlaat, Eleonor Ng, Patricio Lopez-Jaramillo, Jose Lopez-Lopez, Khalid Yusoff, Fadhlina A Majid, Kien Keat Ng, Len Garis, Oyere Onuma, Salim Yusuf, Jon-David Schwalm
BACKGROUND: Cardiovascular disease (CVD) is the leading cause of death worldwide. The need to address CVD is greatest in low- and middle-income countries where there is a shortage of trained health workers in CVD detection, prevention, and control. OBJECTIVES: Based on the growing evidence that many elements of chronic disease management can be shifted to nonphysician health care workers (NPHW), the HOPE-4 (Heart Outcomes Prevention and Evaluation Program) aimed to develop, test, and implement a training curriculum on CVD prevention and control in Colombia, Malaysia, and low-resource settings in Canada...
January 10, 2018: Global Heart
https://www.readbyqxmd.com/read/29331057/manifestations-and-mechanisms-of-myocardial-lipotoxicity-in-obesity
#9
Arthur C Sletten, Linda R Peterson, Jean E Schaffer
Environmental and socioeconomic changes over the past thirty years have contributed to a dramatic rise in the worldwide prevalence of obesity. Heart disease is among the most serious health risks of obesity, with increases in both atherosclerotic coronary heart disease and heart failure among obese individuals. In this review, we focus on primary myocardial alterations in obesity that include hypertrophic remodeling and diastolic dysfunction. Obesity-associated perturbations in myocardial and systemic lipid metabolism are important contributors to cardiovascular complications of obesity...
January 13, 2018: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29328521/the-central-vein-sign-differentiates-ms-from-cns-inflammatory-vasculopathies
#10
Pietro Maggi, Martina Absinta, Matteo Grammatico, Luisa Vuolo, Giacomo Emmi, Giovanna Carlucci, Gregorio Spagni, Alessandro Barilaro, Anna Maria Repice, Lorenzo Emmi, Domenico Prisco, Vittorio Martinelli, Roberta Scotti, Niloufar Sadeghi, Gaetano Perrotta, Pascal Sati, Bernard Dachy, Daniel S Reich, Massimo Filippi, Luca Massacesi
OBJECTIVES: In multiple sclerosis (MS), MRI is a sensitive tool for detecting white matter lesions, but its diagnostic specificity is still suboptimal; ambiguous cases are frequent in clinical practice. Detection of perivenular lesions in the brain (the "central vein sign") improves the pathological specificity of MS diagnosis, but comprehensive evaluation of this MRI biomarker in MS-mimicking inflammatory and/or autoimmune diseases, such as CNS inflammatory vasculopathies, is missing...
January 12, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29328025/the-peculiarities-of-the-state-of-the-autonomic-nervous-system-estimated-by-the-method-of-heart-rate-variability-in-patients-with-cirrhosis-and-syntropic-damages-of-cardiovascular-system
#11
O Abrahamovych, M Abrahamovych, M Farmaha, S Tolopko
In the article the features of the autonomic nervous system state were estimated by the method of heart rate variability in patients with cirrhosis with syntropic damages of cardiovascular system - cardiomyopathy and arterial hypotension. As a result of an examination of 50 patients with liver cirrhosis and cardiomyopathy (investigational group A), 54 patients with liver cirrhosis and arterial hypotension (investigational group B), and 45 patients with liver cirrhosis also those who don't have the damages of cardiovascular system (group of comparison) it was established that: 1) they have the peculiarities of vegetative imbalance the characteristics of which are the low summarized activity of vegetative influence on heart rhythm and special dynamics of indexes of percentage structure of general spectral power; 2) they depend on the clinical variant of this damage - in patients with cirrhosis and syntropic cardiomyopathy the regulating of internal processes involve the humoral-metabolic influence, i...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29325818/simultaneous-determination-of-voriconazole-posaconazole-itraconazole-and-hydroxy-itraconazole-in-human-plasma-using-lcms-ms
#12
Nicole Jenkins, Marion Black, Hans G Schneider
INTRODUCTION: Invasive fungal infections are an increasing cause of mortality and morbidity in high risk patient populations such as those on immunosuppressive therapy. Triazole antifungals are recommended for the prevention and treatment of such infections. The aim of this study was to develop and validate a simple, sensitive and robust LCMS/MS method for the simultaneous analysis in human plasma of three frequently used antifungal drugs: voriconazole, posaconazole, and itraconazole...
January 8, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29325550/acute-onset-high-morbidity-primary-photosensitisation-in-sheep-associated-with-consumption-of-the-casbah-and-mauro-cultivars-of-the-pasture-legume-biserrula
#13
Jane C Quinn, Yuchi Chen, Belinda Hackney, Muhammad Shoaib Tufail, Leslie A Weston, Panayiotis Loukopoulos
BACKGROUND: Primary photosensitisation (PS) subsequent to ingestion of the pasture legume Biserrula pelecinus L. (biserrula) has recently been confirmed in grazing livestock. Given the potential utility of this pasture species in challenging climates, a grazing trial was undertaken to examine if both varieties 'Casbah' and 'Mauro' were able to cause photosensitisation in livestock, and if this could be mitigated by grazing in winter, or in combination with other common pasture species...
January 11, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29325222/pneumonia-as-a-cardiovascular-disease
#14
REVIEW
Marcos I Restrepo, Luis F Reyes
Community-acquired pneumonia (CAP) is an important cause of death around the globe. Up to 30% of patients admitted to hospital for CAP develop cardiovascular complications (i.e. new/worsening heart failure, new/worsening arrhythmias, myocardial infarctions and/or strokes), acutely and up to 10 years thereafter. Cardiac complications result from complex interactions between preexisting conditions, relative ischaemia, upregulation of the sympathetic system, systemic inflammation and direct pathogen-mediated damage to the cardiovascular system...
January 11, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29324913/the-detection-of-endocarditis-post-implantation-grafts-arteritis-and-other-related-disorders-by-18f-fdg-pet-ct
#15
Jelena Šaponjski, Dragana Šobić-Šaranović, Strahinja Odalović, Milica Stojiljković, Jelena Pantović, Nebojša Petrović, Isidora Grozdić-Milojević, Vera Artiko
INTRODUCTION: Positron emission tomography with computed tomography (18F-FDG PET/CT) is a nuclear medicine diagnostic method which, unlike other technological modalities that asses anatomical features, detects increased glucose metabolism inside the cells, thus is very helpful in diagnosing cardiovascular infection and inflammation and also in therapy planning. AIM: Aim of this study was to assess the significance of 18F-FDG PET/CT in detection of an active disease in patients with infection and inflammation of cardiovascular system...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29323823/atrioesophageal-fistula-a-rare-complication-of-radiofrequency-ablation
#16
Inbar Saporta, Adithya Chennamadhavuni, Michael J Dolan
75-year-old woman was admitted with fever, chills, altered mentation, and right-sided weakness. A month earlier, she had undergone catheter radiofrequency ablation for treatment of chronic atrial fibrillation. A magnetic resonance imaging scan of her brain revealed septic emboli with multiple bilateral cerebral and cerebellar infarcts, as well as extensive bilateral leptomeningeal enhancement. Blood cultures were positive for Streptococcus mitis, Rothia mucilaginosa, Streptococcus pneumonia, and Candida albicans, which suggested a connection between gastrointestinal and cardiovascular systems...
June 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29322712/a-cross-sectional-study-of-cardiovascular-involvement-in-systemic-lupus-erythematosus-in-an-urban-indian-tertiary-care-centre-with-emphasis-on-2-d-echocardiography
#17
Seema Kini, Chetan Vekhande, Vikram Londhey
Background: Cardiovascular manifestations are responsible for considerable morbidity and mortality in patients with SLE. A wide range of manifestations due to active lupus, like pericarditis, valvular affection, myocarditis, and less commonly pulmonary hypertension, are described. This study was undertaken to study cardiovascular manifestations in SLE, with a focus on echocardiography findings, in an urban Indian setting. Methodology: Fifty consecutive cases of SLE following up in the Rheumatology Clinic of TNMC and BYL Nair Charitable hospital, an Indian tertiary care hospital were studied...
November 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29322280/direct-cardiovascular-impact-of-sglt2-inhibitors-mechanisms-and-effects
#18
REVIEW
Abdullah Kaplan, Emna Abidi, Ahmed El-Yazbi, Ali Eid, George W Booz, Fouad A Zouein
Diabetes is a global epidemic and a leading cause of death with more than 422 million patients worldwide out of whom around 392 million alone suffer from type 2 diabetes (T2D). Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are novel and effective drugs in managing glycemia of T2D patients. These inhibitors gained recent clinical and basic research attention due to their clinically observed cardiovascular protective effects. Although interest in the study of various SGLT isoforms and the effect of their inhibition on cardiovascular function extends over the past 20 years, an explanation of the effects observed clinically based on available experimental data is not forthcoming...
January 11, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29321992/alterations-of-haemodynamic-parameters-in-spontaneously-hypertensive-rats-by-aristolochia-ringens-vahl-aristolochiaceae
#19
Flora Ruth Aigbe, Abdul Sattar Zubaid Munavvar, Hassan Rathore, Olorunfemi Eseyin, Yen Pei Pei, Safia Akhtar, Ashfaq Chohan, Hui Jin, Jooli Khoo, Samual Tan, Mohammed Lazhari, Sheryar Afzar, Fiaz Ahmed, Olufunmilayo Olaide Adeyemi, Edward Johns
Aristolochia ringens Vahl. (Aristolochiaceae (AR); mǎ dōu líng) is used traditionally in Nigeria for the management of various disorders including oedema. Preliminary investigation revealed its modulatory effect on the cardiovascular system. This study was aimed at investigating the effect of the aqueous root extract of A. ringens (AR) on haemodynamic parameters of spontaneously hypertensive rats (SHRs). The effect of oral subacute (21 days) and intravenous acute exposure of SHRs to the extract were assessed using tail cuff and carotid artery canulation methods respectively...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29321800/vascular-protection-by-high-density-lipoprotein-associated-sphingosine-1-phosphate
#20
REVIEW
Xi Wang, Fan Wang
Epidemiological studies and animal experiments have consistently demonstrated cardiovascular protection by high-density lipoprotein (HDL). Findings from a growing number of studies further indicate that sphingosine-1-phosphate (S1P) mediates many of the beneficial effects of HDL on the cardiovascular system, including vasodilatation, angiogenesis, maintenance of endothelial barrier function, and protection against atherosclerosis and ischemia/reperfusion injury. In this review, we summarize the most recent literature investigating the effects of HDL-S1P on cardiovascular health and highlight potential opportunities for clinical translation of these findings...
November 2017: Journal of Geriatric Cardiology: JGC
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