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https://www.readbyqxmd.com/read/29792579/effects-of-essential-oil-from-thymus-vulgaris-on-viability-and-inflammation-in-zebrafish-embryos
#1
Katherine M Polednik, Abby C Koch, Lisa K Felzien
Innate immunity provides the initial response against pathogens and includes the inflammatory response. Regulation of the initiation and duration of neutrophil and mononuclear cell influx during inflammation determines both the successfulness of pathogen elimination and the level of resulting tissue damage. Zebrafish embryos provide excellent opportunities to visualize the inflammatory response. Neutrophil granules may be stained with Sudan black, and variation in neutrophil counts may be used to monitor the level of the response...
May 24, 2018: Zebrafish
https://www.readbyqxmd.com/read/29792339/pulmonary-hypertension-in-congenital-heart-disease
#2
Emma Pascall, Robert Mr Tulloh
Pulmonary hypertension is defined as a mean pulmonary arterial pressure ≥25 mmHg. We focus on its relevance in congenital heart disease, reviewing pathophysiology, diagnosis and management. Pulmonary hypertension is a relatively common complication of congenital heart disease, with adult prevalence between 5 and 10%. A multifactorial cause is recognized, relating to the size and nature of cardiac defect as well as environmental and genetic factors. More complex disease is increasingly recognized rather than pure Eisenmenger complex...
May 24, 2018: Future Cardiology
https://www.readbyqxmd.com/read/29789980/metabolic-remodeling-of-substrate-utilization-during-heart-failure-progression
#3
REVIEW
Liang Chen, Jiangping Song, Shengshou Hu
Heart failure (HF) is a clinical syndrome caused by a decline in cardiac systolic or diastolic function, which leaves the heart unable to pump enough blood to meet the normal physiological requirements of the human body. It is a serious disease burden worldwide affecting nearly 23 million patients. The concept that heart failure is "an engine out of fuel" has been generally accepted and metabolic remodeling has been recognized as an important aspect of this condition; it is characterized by defects in energy production and changes in metabolic pathways involved in the regulation of essential cellular functions such as the process of substrate utilization, the tricarboxylic acid cycle, oxidative phosphorylation, and high-energy phosphate metabolism...
May 23, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29789918/recent-experience-and-follow-up-after-surgical-closure-of-secundum-atrial-septal-defect-in-120-children
#4
Geoffroy de Beco, Natasha Mambour, Christophe Vô, Laetitia Vanhoutte, Stéphane Moniotte, Alain Poncelet, Thierry Sluysmans
While percutaneous catheter closure proves an effective treatment for secundum atrial septal defect (ASD2), some child patients require surgical closure. We assessed the risks associated with isolated surgical ASD2 closure by reviewing the outcomes of 120 children operated on between 1999 and 2011 (mean age 4.6 ± 3.9 years, mean weight 17 ± 12 kg). Direct sutures were performed in 4% and patch closures in 96%. The mean cardiopulmonary bypass duration was 38 ± 14 min, aortic cross-clamp time 19 ± 9 min, intensive care unit length of stay 1...
May 22, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29788428/puf60-activated-exons-uncover-altered-3-splice-site-selection-by-germline-missense-mutations-in-a-single-rrm
#5
Jana Královicová, Ivana Ševcíková, Eva Stejskalová, Mina Obuca, Michael Hiller, David Stanek, Igor Vorechovský
PUF60 is a splicing factor that binds uridine (U)-rich tracts and facilitates association of the U2 small nuclear ribonucleoprotein with primary transcripts. PUF60 deficiency (PD) causes a developmental delay coupled with intellectual disability and spinal, cardiac, ocular and renal defects, but PD pathogenesis is not understood. Using RNA-Seq, we identify human PUF60-regulated exons and show that PUF60 preferentially acts as their activator. PUF60-activated internal exons are enriched for Us upstream of their 3' splice sites (3'ss), are preceded by longer AG dinucleotide exclusion zones and more distant branch sites, with a higher probability of unpaired interactions across a typical branch site location as compared to control exons...
May 18, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29786701/lutembacher-syndrome-with-mitral-valve-calcification-in-a-31-year-old-male
#6
Arsalan Majeed Adam, Ansab Godil, Muhammad Saad Ali Mallick, Fahad Khan, Ather Hasan Rizvi, Inam-Ul-Haq Muhammad Makhdoom
Lutembacher syndrome is characterized by a congenital ostium secundum atrial septal defect and an acquired mitral valve stenosis. We present a similar case in a 31-year old male who came in with orthopnoea, central cyanosis and pedal oedema. Examination revealed cardiac murmurs in tricuspid and apical regions. Chest x-ray showed signs of pulmonary congestion and ventricular enlargement. Electrocardiogaphy (ECG) revealed right axis deviation and right bundle branch block along with atrial fibrillation and Transthoracic Echocardiography (TTE) showed abnormal valves (mitral stenosis with calcification and tricuspid regurgitation) and dilated cardiac chambers...
February 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29785886/treatment-of-homozygous-familial-hypercholesterolaemia-in-paediatric-patients-a-monocentric-experience
#7
Paola S Buonuomo, Marina Macchiaiolo, Giovanna Leone, Paola Valente, Gerarda Mastrogiorgio, Maria Gnazzo, Ippolita Rana, Michaela V Gonfiantini, Maria G Gagliardi, Francesca Romano, Andrea Bartuli
Background Homozygous familial hypercholesterolaemia is a rare life-threatening disease characterized by markedly elevated low-density lipoprotein cholesterol (LDL-C) concentrations and accelerated atherosclerosis. The presence of double gene defects in the LDL-Receptor, either the same defect (homozygous) or two different LDL-raising mutations (compound heterozygotes) or other variants, identify the homozygous phenotype (HopFH). Apheresis is a procedure in which plasma is separated from red blood cells before the physical removal of LDL-C or the LDL-C is directly removed from whole blood...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29785061/targeted-neonatal-echocardiography-tne-consult-service-in-a-large-tertiary-perinatal-center-in-canada
#8
Ismina Papadhima, Deepak Louis, Jyotsna Purna, Poorva Deshpande, Yenge Diambomba, Shoo Lee, Prakesh Shah, Dany Weisz, Afif El-Khuffash, Patrick J McNamara, Luc Mertens, Amish Jain
OBJECTIVE: To describe the utilization and study the factors associated with the impact on clinical management of a new TNE consultation service in a perinatal center. METHODS: This retrospective cohort study included all neonates who underwent TNE consultation at the neonatal unit of Mount Sinai Hospital in Toronto, Canada (November 2011 and July 2015). The consults that had "impact" were defined as those that led to a TNE suggested change in the clinical management within 6 h of its recommendation...
May 22, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29784681/use-of-intracardiac-echocardiography-in-interventional-cardiology-working-with-the-anatomy-rather-than-fighting-it
#9
REVIEW
Andres Enriquez, Luis C Saenz, Raphael Rosso, Frank E Silvestry, David Callans, Francis E Marchlinski, Fermin Garcia
The indications for catheter-based structural and electrophysiological procedures have recently expanded to more complex scenarios, in which an accurate definition of the variable individual cardiac anatomy is key to obtain optimal results. Intracardiac echocardiography (ICE) is a unique imaging modality able to provide high-resolution real-time visualization of cardiac structures, continuous monitoring of catheter location within the heart, and early recognition of procedural complications, such as pericardial effusion or thrombus formation...
May 22, 2018: Circulation
https://www.readbyqxmd.com/read/29782596/diagnostic-performance-of-hybrid-cardiac-spect-ct-imaging-for-patients-with-takotsubo-cardiomyopathy
#10
Yasuro Sugihara, Yoshimitsu Fukushima, Shin-Ichiro Kumita, Hitoshi Takano, Wataru Shimizu
Background: The diagnostic performance of SPECT-only imaging for takotsubo cardiomyopathy (TC) is limited due to the lack of coronary artery distribution information. The aim of this study was to evaluate the diagnostic performance of hybrid cardiac SPECT/CT for patients with TC or acute coronary syndrome (ACS). Methods: Twenty-two patients with apical ballooning left ventricular (LV) dysfunction who underwent cardiac perfusion SPECT using 99m Tc-methoxy-isobutyl-isonitrile (MIBI), cardiac fatty-acid metabolism SPECT using 123 I-beta-methyl-P-iodophenyl-pentadecanoic acid (BMIPP), cardiac CT, and hybrid cardiac SPECT/CT imaging were analyzed...
2018: European journal of hybrid imaging
https://www.readbyqxmd.com/read/29781990/fetal-mouse-cardiovascular-imaging-using-a-high-frequency-ultrasound-30-45mhz-system
#11
Marlin Touma
Congenital heart defects (CHDs) are the most common cause of childhood morbidity and early mortality. Prenatal detection of the underlying molecular mechanisms of CHDs is crucial for inventing new preventive and therapeutic strategies. Mutant mouse models are powerful tools to discover new mechanisms and environmental stress modifiers that drive cardiac development and their potential alteration in CHDs. However, efforts to establish the causality of these putative contributors have been limited to histological and molecular studies in non-survival animal experiments, in which monitoring the key physiological and hemodynamic parameters is often absent...
May 5, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29780944/central-retinal-artery-occlusion-secondary-to-barlow-s-disease
#12
Carl S Wilkins, Katherine McCabe, Avnish Deobhakta, James Chelnis
Purpose: To report a rare case of isolated, unilateral CRAO in a young patient with mitral valve prolapse secondary to Barlow's disease. Observations: A 29-year-old woman with history of premature ventricular contractions and cardiac ablation presented to the emergency room after sudden onset painless visual loss in her left eye (OS). Her vision was 20/20 in her right eye and hand motion in the left. Fundus exam demonstrated a central retinal artery occlusion (CRAO) OS...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780907/calcified-amorphous-tumor-a-rare-cause-of-central-retinal-artery-occlusion
#13
Jeffrey H Ma, Manjot K Gill
Purpose: We report the case of a central retinal artery occlusion secondary to presumed embolus from a calcified amorphous tumor of the heart, a very rare non-neoplastic cardiac mass. Observations: A 60-year-old female presented with acute unilateral vision loss of the left eye. Examination revealed hand motion visual acuity of the left eye and a left relative afferent pupillary defect. Fundoscopy showed whitening of the macula with a cherry red spot, consistent with a central retinal artery occlusion...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29778384/association-of-birth-defects-with-the-mode-of-assisted-reproductive-technology-in-a-chinese-data-linkage-cohort
#14
Hui-Ting Yu, Qing Yang, Xiao-Xi Sun, Guo-Wu Chen, Nai-Si Qian, Ren-Zhi Cai, Han-Bing Guo, Chun-Fang Wang
OBJECTIVE: To evaluate the impact of assisted reproductive technology (ART) on the offspring of Chinese population. DESIGN: Retrospective, data-linkage cohort. SETTING: Not applicable. PATIENT(S): Live births resulting from ART or natural conception. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Birth defects coded according to ICD-10. RESULT(S): Births after ART were more likely to be female and multiple births, especially after intracytoplasmic sperm injection (ICSI)...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29776810/congenital-heart-disease-in-adults-assessmentof-functional-capacity-using-cardiopulmonary-exercise-testing
#15
Sílvia Aguiar Rosa, Ana Agapito, Rui M Soares, Lídia Sousa, José Alberto Oliveira, Ana Abreu, Ana Sofia Silva, Sandra Alves, Helena Aidos, Fátima F Pinto, Rui Cruz Ferreira
AIM: The aim of the study was to compare functional capacity in different types of congenital heart disease (CHD), as assessed by cardiopulmonary exercise testing (CPET). METHODS: A retrospective analysis was performed of adult patients with CHD who had undergone CPET in a single tertiary center. Diagnoses were divided into repaired tetralogy of Fallot, transposition of the great arteries (TGA) after Senning or Mustard procedures or congenitally corrected TGA, complex defects, shunts, left heart valve disease and right ventricular outflow tract obstruction...
May 15, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29776787/the-value-of-peripheral-perfusion-index-measurements-for-early-detection-of-critical-cardiac-defects
#16
Ozgun Uygur, Ozge Altun Koroglu, Erturk Levent, Merve Tosyali, Mete Akisu, Mehmet Yalaz, Nilgun Kultursay
BACKGROUND: Approximately 25% of congenital heart diseases (CHD) are estimated to be critical and require an intervention. In this study, we aimed to investigate the additional value of peripheral perfusion index (PPI) measurements to pulse oximetry screening for critical CHD (CCHD). METHODS: Infants born at Ege University Hospital between May 2013 and September 2015 were prospectively included in the study. In addition to physical examination, pre- and postductal oxygen saturations and PPI values were measured with a new generation pulse oximeter before discharge from the hospital...
April 12, 2018: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29772440/inhibition-of-nogo-b-promotes-cardiac-hypertrophy-via-endoplasmic-reticulum-stress
#17
Junli Li, Wenchao Wu, Yanguo Xin, Mingyue Zhao, Xiaojing Liu
AIMS: Nogo-B is a key endoplasmic reticulum (ER) protein that regulates ER stress signaling. However, its role in cardiac hypertrophy remains poorly understood. ER stress is interrelated with autophagy in the process of cardiac hypertrophy. Therefore, we aimed to test the hypothesis that both ER stress and autophagy signaling mediate the function of Nogo-B in cardiac hypertrophy. MAIN METHODS: Rat models of transverse aortic constriction (TAC), neonatal rat cardiomyocytes (NRCMs) stimulated with norepinephrine (Ne) and primary cardiac fibroblasts treated with transforming growth factor β1 (TGF-β1) were used in this study...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29772208/influence-of-blood-flow-on-cardiac-development
#18
REVIEW
Katherine Courchaine, Graham Rykiel, Sandra Rugonyi
The role of hemodynamics in cardiovascular development is not well understood. Indeed, it would be remarkable if it were, given the dauntingly complex array of intricately synchronized genetic, molecular, mechanical, and environmental factors at play. However, with congenital heart defects affecting around 1 in 100 human births, and numerous studies pointing to hemodynamics as a factor in cardiovascular morphogenesis, this is not an area in which we can afford to remain in the dark. This review seeks to present the case for the importance of research into the biomechanics of the developing cardiovascular system...
May 14, 2018: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/29770800/current-and-future-circulating-biomarkers-for-cardiac-amyloidosis
#19
REVIEW
Marco Luciani, Luca Troncone, Federica Del Monte
Cardiac amyloidosis (CA) comprises a heterogeneous group of medical conditions affecting the myocardium. It presents with proteinaceous infiltration with variable degrees of severity, prevalence and evolution. Despite this heterogeneity, erroneous protein folding is the common pathophysiologic process, yielding the formation of a single misfolded protein (monomer) that progressively evolves and ultimately forms amyloid fibers. Additionally, by seeding out from the organs of origin, intermediates called oligomers metastasize and restart the process...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770487/inhibitory-effect-of-melatonin-on-necroptosis-via-repressing-the-ripk3-pgam5-cypd-mptp-pathway-attenuates-cardiac-microvascular-ischemia-reperfusion-injury
#20
Hao Zhou, Dandan Li, Pingjun Zhu, Qiang Ma, Toan Sam, Jin Wang, Shunying Hu, Yundai Chen, Yingmei Zhang
The molecular features of necroptosis in cardiac ischemia reperfusion (IR) injury have been extensively explored. However, there have been no studies investigating the physiological regulatory mechanisms of melatonin acting on necroptosis in cardiac IR injury. This study was designed to determine the role of necroptosis in microvascular IR injury, and investigate the contribution of melatonin in repressing necroptosis and preventing IR-mediated endothelial system collapse. Our results demonstrated that Ripk3 was primarily activated by IR injury and consequently aggravated endothelial necroptosis, microvessel barrier dysfunction, capillary hyperpermeability, the inflammation response, microcirculatory vasospasms and microvascular perfusion defects...
May 16, 2018: Journal of Pineal Research
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