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https://www.readbyqxmd.com/read/29342096/high-resolution-lipidomics-of-the-early-life-stages-of-the-red-seaweed-porphyra-dioica
#1
Elisabete da Costa, Vitor Azevedo, Tânia Melo, Andreia M Rego, Dmitry V Evtuguin, Pedro Domingues, Ricardo Calado, Rui Pereira, Maria H Abreu, Maria R Domingues
Porphyra dioica is a commercial seaweed consumed all over the world, mostly in the shape of nori sheets used for "sushi" preparation. It is a well-known part of the Asian diet with health benefits, which have been associated, among others, to the high levels of n-3 and n-6 fatty acids in this red alga. However, other highly valued lipids of Porphyra are polar lipids that remain largely undescribed and can have both nutritional value and bioactivity, thus could contribute to the valorization of this seaweed...
January 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29340717/evaluation-of-left-ventricular-function-after-percutaneous-recanalization-of-chronic-coronary-occlusions-the-role-of-two-dimensional-speckle-tracking-echocardiography
#2
P Wang, Y Liu, L Ren
BACKGROUND: This study evaluated the feasibility of using two-dimensional speckle tracking echocardiography (2D-STE) to monitor left ventricular (LV) and overall function after percutaneous recanalization. METHODS: LV function after percutaneous recanalization was monitored by 2D-STE and conventional echocardiography in 43 patients with coronary chronic total occlusion (CTO) who underwent primary percutaneous coronary intervention (PCI). Follow-ups were carried out 1 day as well as 3 and 6 months after CTO-PCI...
January 16, 2018: Herz
https://www.readbyqxmd.com/read/29339653/adherence-to-the-european-association-of-urology-guidelines-a-national-survey-among-italian-urologists
#3
Giovanni Cacciamani, Walter Artibani, Alberto Briganti, James N'Dow
OBJECTIVE: The study aimed to explore adherence to the European Urological Association (EAU) Guidelines (GLs) grade A recommendation among Italian urologists. MATERIALS AND METHODS: A 13-item multiple-choice questionnaire covering oncological and non-oncological urological diseases was e-mailed to all Italian Urologist Society (Società Italiana di Urologia or SIU) members. We asked members to provide an explanation for their answer choice where needed. The quantitative data were tested using the Pearson's chi-square test...
January 16, 2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29337138/let-7-suppresses-b-cell-activation-through-restricting-the-availability-of-necessary-nutrients
#4
Shuai Jiang, Wei Yan, Shizhen Emily Wang, David Baltimore
The control of uptake and utilization of necessary extracellular nutrients-glucose and glutamine-is an important aspect of B cell activation. Let-7 is a family of microRNAs known to be involved in metabolic control. Here, we employed several engineered mouse models, including B cell-specific overexpression of Lin28a or the let-7a-1/let-7d/let-7f-1 cluster (let-7adf) and knockout of individual let-7 clusters to show that let-7adf specifically inhibits T cell-independent (TI) antigen-induced immunoglobulin (Ig)M antibody production...
January 10, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29333218/impact-of-mindfulness-based-stress-reduction-therapy-on-myocardial-function-and-endothelial-dysfunction-in-female-patients-with-microvascular-angina
#5
Bong Joon Kim, In Suk Cho, Kyoung Im Cho
Background: Mindfulness-based stress reduction (MBSR) is a structured group program that employs mindfulness meditation to alleviate suffering associated with physical, psychosomatic, and psychiatric disorders. In this study, we investigate the impact of MBSR on left ventricular (LV) and endothelial function in female patients with microvascular angina. Methods: A total of 34 female patients (mean age 52.2 ± 13.8 years) diagnosed with microvascular angina underwent a MBSR program with anti-anginal medication for 8 weeks...
December 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29329240/effective-data-driven-calibration-for-a-galvanometric-laser-scanning-system-using-binocular-stereo-vision
#6
Junchao Tu, Liyan Zhang
A new solution to the problem of galvanometric laser scanning (GLS) system calibration is presented. Under the machine learning framework, we build a single-hidden layer feedforward neural network (SLFN)to represent the GLS system, which takes the digital control signal at the drives of the GLS system as input and the space vector of the corresponding outgoing laser beam as output. The training data set is obtained with the aid of a moving mechanism and a binocular stereo system. The parameters of the SLFN are efficiently solved in a closed form by using extreme learning machine (ELM)...
January 12, 2018: Sensors
https://www.readbyqxmd.com/read/29328672/three-dimensional-printing-hollow-polymer-template-mediated-graphene-lattices-with-tailorable-architectures-and-multifunctional-properties
#7
Qiangqiang Zhang, Feng Zhang, Xiang Xu, Chi Zhou, Dong Lin
It is a significant challenge to concurrently achieve scalable fabrication of graphene aerogels with three-dimensional (3D) tailorable architectures (e.g., lattice structure) and controllable manipulation of microstructures on the multiscale. Herein, we highlight 3D graphene lattices (GLs) with complex engineering architectures that were delicately designed and manufactured via 3D stereolithography printed hollow polymer template-mediated hydrothermal process coupled with freeze-drying strategies. The resulting GLs with overhang beams and columns show a 3D geometric configuration with hollow-carved features at the macroscale, while the construction elements of graphene cellular on the microscale exhibit a well-ordered and honeycomb-like microstructure with high porosity...
January 12, 2018: ACS Nano
https://www.readbyqxmd.com/read/29319172/long-non-coding-rna-hotair-acts-as-a-competing-endogenous-rna-to-promote-glioma-progression-by-sponging-mir-126-5p
#8
Liang Liu, Sitong Cui, Teng Wan, Xiaojian Li, Wei Tian, Rui Zhang, Liangsheng Luo, Yan Shi
LncRNA HOX transcript antisense intergenic RNA (HOTAIR) has been shown to play prominent roles in tumorigenesis. However, its precise molecular mechanism in glioma has not been completely elucidated. In this study, we found that HOTAIR was aberrantly up-regulated in glioma tissues and was negatively correlated with miR-126-5p expression. Next, we determined that HOTAIR promote glioma progression by sponging miR-126-5p. Subsequently, glutaminase (GLS) was confirmed to be a direct target of miR-126-5p using bioinformatics software and a luciferase reporter assay...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29313213/effects-of-hyperaemia-on-left-ventricular-longitudinal-strain-in-patients-with-suspected-coronary-artery-disease-a%C3%A2-first-pass-stress-perfusion-cardiovascular-magnetic-resonance-imaging-study
#9
P Garg, R Aziz, T Al Musa, D P Ripley, P Haaf, J R J Foley, P P Swoboda, G J Fent, L E Dobson, J P Greenwood, S Plein
AIMS: Myocardial perfusion imaging during hyperaemic stress is commonly used to detect coronary artery disease. The aim of this study was to investigate the relationship between left ventricular global longitudinal strain (GLS), strain rate (GLSR), myocardial early (E') and late diastolic velocities (A') with adenosine stress first-pass perfusion cardiovascular magnetic resonance (CMR) imaging. METHODS AND RESULTS: 44 patients met the inclusion criteria and underwent CMR imaging...
January 8, 2018: Netherlands Heart Journal
https://www.readbyqxmd.com/read/29310645/effects-of-6-month-treatment-with-the-glucagon-like-peptide-1-analogue-liraglutide-on-arterial-stiffness-left-ventricular-myocardial-deformation-and-oxidative-stress-in-subjects-with-newly-diagnosed-type-2-diabetes
#10
Vaia Lambadiari, George Pavlidis, Foteini Kousathana, Maria Varoudi, Dimitrios Vlastos, Eirini Maratou, Dimitrios Georgiou, Ioanna Andreadou, John Parissis, Helen Triantafyllidi, John Lekakis, Efstathios Iliodromitis, George Dimitriadis, Ignatios Ikonomidis
BACKGROUND: Incretin-based therapies are used in the treatment of type 2 diabetes mellitus (T2DM) and obesity. We investigated the changes in arterial stiffness and left ventricular (LV) myocardial deformation after 6-month treatment with the GLP-1 analogue liraglutide in subjects with newly diagnosed T2DM. METHODS: We randomized 60 patients with newly diagnosed and treatment-naive T2DM to receive either liraglutide (n = 30) or metformin (n = 30) for 6 months...
January 8, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29300883/left-atrial-function-to-identify-patients-with-atrial-fibrillation-at-high-risk-of-stroke-new-insights-from-a-large-registry
#11
Melissa Leung, Philippe J van Rosendael, Rachid Abou, Nina Ajmone Marsan, Dominic Y Leung, Victoria Delgado, Jeroen J Bax
Aims: Atrial fibrillation (AF) is an independent risk factor for ischaemic stroke. The CHA2DS2-VASc is the most widely used risk stratification model; however, echocardiographic refinement may be useful, particularly in low risk AF patients. The present study examined the association between advanced echocardiographic parameters and ischaemic stroke, independent of CHA2DS2-VASc score. Methods and results: One thousand, three hundred and sixty-one patients (mean age 65±12 years, 74% males) with first diagnosis of AF and baseline transthoracic echocardiogram were followed by chart review for the occurrence of stroke over a mean of 7...
December 28, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29300855/left-ventricular-function-and-contractile-reserve-in-patients-with-hypertension
#12
Matle J Fung, Liza Thomas, Dominic Y Leung
Aims: An impaired contractile reserve (CR) may be an early manifestation of left ventricular (LV) systolic dysfunction in hypertensive patients. Using normotensive patients as controls, we examined LV CR and its correlates in hypertensive patients. Methods and results: One hundred and twenty-nine (68 men, aged 58.6 ± 9.5 years, 73 had hypertension) patients underwent dobutamine echocardiography. Patients with significant coronary or valvular disease, previous myocardial infarction or revascularization, and diabetes were excluded...
January 2, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29299622/a-novel-galactolipase-from-a-green-microalga-chlorella-kessleri-purification-characterization-molecular-cloning-and-heterologous-expression
#13
Shuhei Hashiro, Koyu Fujiuchi, Daisuke Sugimori, Hisashi Yasueda
We have identified an enzyme, galactolipase (ckGL), which hydrolyzes the acyl ester bond of galactolipids such as digalactosyldiacylglycerol (DGDG), in the microalga Chlorella kessleri. Following purification of the enzyme to electrophoretic homogeneity from cell-free extract, the maximum activity toward DGDG was observed at pH 6.5 and 37 °C. ckGL was Ca2+-dependent enzyme and displayed an apparent molecular mass of approx. 53 kDa on SDS-PAGE. The substrate specificity was in the order: DGDG (100%) > monogalactosyldiacylglycerol ≈ phosphatidylglycerol (~ 40%) > sulfoquinovosyldiacylglycerol (~ 20%); the enzyme exhibited almost no activity toward glycerides and other phospholipids...
January 3, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29297194/red-cell-distribution-width-and-its-relationship-with-global-longitudinal-strain-in-patients-with-heart-failure-with-reduced-ejection-fraction-a-study-using-two-dimensional-speckle-tracking-echocardiography
#14
Elif Eroglu, Alev Kilicgedik, Gokhan Kahveci, Ruken Bengi Bakal, Cevat Kirma
BACKGROUND: Red cell distribution width (RDW) is a measurement of size variability of the red blood cells and has been shown to be a powerful predictor of prognosis in heart failure (HF). Recently, global longitudinal strain (GLS) emerged as a more accurate marker of left ventricular (LV) systolic function. AIM: We aimed to assess the relationship between RDW and standard echocardiographic parameters and left ventricular global strain measured by two-dimensional (2D) speckle tracking echocardiography in patients with HF with reduced EF (HFrEF)...
January 3, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29273324/temporal-expression-of-c-fos-and-genes-coding-for-neuropeptides-and-enzymes-of-amino-acid-and-amine-neurotransmitter-biosynthesis-in-retina-pineal-and-hypothalamus-of-a-migratory-songbird-evidence-for-circadian-rhythm-dependent-seasonal-responses
#15
Ila Mishra, Devraj Singh, Vinod Kumar
This study investigated whether, in photoperiodic songbirds, the circadian pacemaker system (CPS) connects to the seasonal photoperiodic responses, by changes at transcriptional level in the level and 24-h rhythm of its constituent neurotransmitters. We used blackheaded buntings (Emberiza melanocephala), which exhibits distinct seasonal states in captivity under appropriate photoperiods and hence served as a useful model system. Under short days, buntings remain in the photosensitive state (winter phenotype: non-migratory, non-breeding)...
December 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/29246515/complex-association-of-sex-hormones-on-left-ventricular-systolic-function-insight-into-sexual-dimorphism
#16
Joe-Elie Salem, Lee S Nguyen, Nadjib Hammoudi, Gisèle Preud'homme, Jean-Sebastien Hulot, Monique Leban, Christian Funck-Brentano, Philippe Touraine, Richard Isnard, Anne Bachelot
BACKGROUND: Normal values of left ventricular ejection fraction (LVEF) and absolute values of global longitudinal strain (GLS) are lower in men than in women. Data concerning the association of sex hormone levels on these left ventricular systolic function surrogates are scarce. The aim of this study was to determine the association of sex hormones with systolic left ventricular function in healthy subjects and patients with congenital adrenal hyperplasia (CAH) as a model of testosterone dysregulation...
December 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29246512/comparison-of-feasibility-accuracy-and-reproducibility-of-layer-specific-global-longitudinal-strain-measurements-among-five-different-vendors-a-report-from-the-eacvi-ase-strain-standardization-task-force
#17
Serkan Ünlü, Oana Mirea, Jürgen Duchenne, Efstathios D Pagourelias, Stéphanie Bézy, James D Thomas, Luigi P Badano, Jens-Uwe Voigt
BACKGROUND: Despite standardization efforts, vendors still use information from different myocardial layers to calculate global longitudinal strain (GLS). Little is known about potential advantages or disadvantages of using these different layers in clinical practice. The authors therefore investigated the reproducibility and accuracy of GLS measurements from different myocardial layers. METHODS: Sixty-three subjects were prospectively enrolled, in whom the intervendor bias and test-retest variability of endocardial GLS (E-GLS) and midwall GLS (M-GLS) were calculated, using software packages from five vendors that allow layer-specific GLS calculation (GE, Hitachi, Siemens, Toshiba, and TomTec)...
December 12, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29243788/evaluation-on-the-impact-of-spontaneous-reperfusion-on-cardiac-muscle-of-acute-myocardial-infarction-by-three-dimensional-speckle-tracking-imaging
#18
Z-W Tao, X-W Ma, N-N Liu, N-L Tian, X-F Gao, P-X Xiao
OBJECTIVE: To explore the effect of spontaneous reperfusion (SR) on three-dimensional myocardial strain in patients with acute anterior myocardial infarction by three-dimensional speckle tracking imaging (3D-STI) technology. PATIENTS AND METHODS: Patients diagnosed with acute anterior myocardial infarction during 2013 to 2016 were consecutively selected and divided into SR group and non-spontaneous reperfusion (Non-SR) group based on whether there was SR. Patients in both groups received direct percutaneous coronary intervention (PCI) in time window...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29226384/the-impact-of-volume-overload-on-right-heart-function-in-end-stage-renal-disease-patients-on-hemodialysis
#19
Serkan Ünlü, Asife Şahinarslan, Gökhan Gökalp, Özden Seçkin, Selim Turgay Arınsoy, Nuri Bülent Boyacı, Atiye Çengel
PURPOSE: The aim of this study was to evaluate the impact of volume overload on echocardiographic parameters used for the assessment of the right ventricle (RV) and right atrium (RA), to determine volume-independent parameters and to noninvasively investigate the physio-mechanics of RV and RA by examining end-stage kidney patients before and after hemodialysis (HD). METHODS: The echocardiographic images were obtained from 67 patients (49.2 ± 17.3 years, 23 f) before and after HD...
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29222822/coronary-microvascular-dysfunction-and-myocardial-contractile-reserve-in-women-with-angina-and-no-obstructive-coronary-artery-disease
#20
Marie M Michelsen, Adam Pena, Naja D Mygind, Jan Bech, Ida Gustafsson, Jens Kastrup, Henrik S Hansen, Nis Høst, Peter R Hansen, Eva Prescott
BACKGROUND: Coronary microvascular dysfunction (CMD) is a potential cause of myocardial ischemia and may affect myocardial function at rest and during stress. We investigated whether CMD was associated with left ventricular diastolic and systolic function at rest and during pharmacologically induced hyperemic stress. METHODS: In a prospective cohort study, we included 963 women with angina, left ventricular ejection fraction (LVEF) >45%, and an invasive coronary angiogram without significant stenosis (<50%)...
December 8, 2017: Echocardiography
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