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https://www.readbyqxmd.com/read/29148140/haemodynamic-effects-of-an-acute-vasodilator-challenge-in-heart-failure-patients-with-reduced-ejection-fraction-and-different-forms-of-post-capillary-pulmonary-hypertension
#1
Stefano Ghio, Gabriele Crimi, Pier Luigi Temporelli, Egidio Traversi, Maria Teresa La Rovere, Antonia Cannito, Dario Vizza, Laura Scelsi, Claudia Raineri, Marco Guazzi, Luigi Oltrona Visconti
AIMS: The most recent European guidelines have proposed new definitions of pulmonary hypertension (PH) in left heart disease, to better approach the characteristics required to reflect the presence of pulmonary vascular disease. The purpose of this study was to assess whether different haemodynamic definitions of post-capillary PH imply a different reversibility of PH in response to acute vasodilator administration in heart failure patients with reduced ejection fraction and PH (HFrEF-PH)...
November 16, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29097387/neopterin-as-an-effect-modifier-of-the-cardiovascular-risk-predicted-by-total-homocysteine-a-prospective-2-cohort-study
#2
Espen Ø Bjørnestad, Robert A Borsholm, Gard F T Svingen, Eva R Pedersen, Reinhard Seifert, Øivind Midttun, Per M Ueland, Grethe S Tell, Kaare H Bønaa, Ottar Nygård
BACKGROUND: Plasma total homocysteine (tHcy) is related to plasma neopterin, an indicator of interferon-γ-mediated immune activation, and both biomarkers positively predict cardiovascular risk. We examined whether the association between tHcy and subsequent risk of acute myocardial infarction (AMI) was modified by systemic concentrations of neopterin and C-reactive protein among patients with coronary heart disease. METHODS AND RESULTS: By Cox modeling, we explored the association between tHcy and risk of AMI in 4164 patients with suspected stable angina pectoris...
November 2, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29071721/erythrocyte-membrane-fatty-acids-and-breast-cancer-risk-a-prospective-analysis-in-the-nurses-health-study-ii
#3
Kelly A Hirko, Boyang Chai, Donna Spiegelman, Hannia Campos, Maryam S Farvid, Susan E Hankinson, Walter C Willett, A Heather Eliassen
The roles of specific fatty acids in breast cancer etiology are unclear, particularly among premenopausal women. We examined 34 individual fatty acids, measured in blood erythrocytes collected between 1996-1999, and breast cancer risk in a nested case-control study of primarily premenopausal women in the Nurses' Health Study II. Breast cancer cases diagnosed after blood collection and before June 2010 (n=794) were matched to controls and conditional logistic regression was used to estimate OR's (95% CI's) for associations of fatty acids with breast cancer; unconditional logistic regression was used for stratified analyses...
October 26, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29044291/preprocedural-leucocyte-count-predicts-risk-in-patients-with-coronary-chronic-total-occlusion
#4
Catherine Gebhard, Aurel Toma, Zhao Min, Barbara E Stähli, Kambis Mashayekhi, Michael Gick, Miroslaw Ferenc, Heinz Joachim Büttner, Franz-Josef Neumann
Background As technologies of percutaneous coronary intervention (PCI) for coronary chronic total occlusions (CTO) have improved, great uncertainty exists regarding patient selection and long-term benefit of CTO-PCI. Given that white blood cell (WBC) count has been associated with cardiovascular risk, we hypothesized that the latter might provide incremental prognostic value in patients undergoing CTO-PCI. Methods and Results Our study population consisted of 1,262 consecutive patients (76.3% males, mean age of 67...
October 10, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29043470/comprehensive-analysis-of-nmr-data-using-advanced-line-shape-fitting
#5
Markus Niklasson, Renee Otten, Alexandra Ahlner, Cecilia Andresen, Judith Schlagnitweit, Katja Petzold, Patrik Lundström
NMR spectroscopy is uniquely suited for atomic resolution studies of biomolecules such as proteins, nucleic acids and metabolites, since detailed information on structure and dynamics are encoded in positions and line shapes of peaks in NMR spectra. Unfortunately, accurate determination of these parameters is often complicated and time consuming, in part due to the need for different software at the various analysis steps and for validating the results. Here, we present an integrated, cross-platform and open-source software that is significantly more versatile than the typical line shape fitting application...
October 2017: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/28979628/determination-in-vivo-viability-of-a-transfused-platelet-product-by-corrected-count-increment-and-percentage-platelet-response
#6
Nancy Wanjiru Thuku, Kibet Shikuku, Amos Mbugua
INTRODUCTION: For many years, platelet concentrates have been used for the prevention as well as treatment of bleeding disorders, especially in those patients with haematological problems involving platelet disorders as well as refractoriness, In addition, platelet concentrates (PCs) have been widely used to support patients undergoing bone marrow transplantation or who are receiving myelotoxic treatments. The aim of this study was to determine the quality of platelet concentrates by assessing platelet counts, volume, pH changes, swirling, residue of the red blood cells and white blood cell counts...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28867009/sex-differences-in-the-effect-of-diabetes-mellitus-on-platelet-reactivity-and-coronary-thrombosis-from-the-assessment-of-dual-antiplatelet-therapy-with-drug-eluting-stents-adapt-des-study
#7
Gennaro Giustino, Björn Redfors, Roxana Mehran, Ajay J Kirtane, Usman Baber, Philippe Généreux, Bernhard Witzenbichler, Franz-Josef Neumann, Giora Weisz, Akiko Maehara, Michael J Rinaldi, D Christopher Metzger, Timothy D Henry, David A Cox, Peter L Duffy, Ernest L Mazzaferri, Bruce R Brodie, Thomas D Stuckey, George D Dangas, Sorin J Brener, M Ozgu Ozan, Gregg W Stone
BACKGROUND: Whether the consequences of diabetes mellitus (DM) are worse for women than for men treated with drug-eluting stents (DES) and antiplatelet therapy remain unclear. METHODS: Patients from the Assessment of Dual Antiplatelet Therapy With Drug-Eluting Stents study were stratified according to sex and DM status. We investigated the sex-specific effect of DM on high on-clopidogrel platelet reactivity (HPR), defined as a P2Y12 reaction units ≥208, and the adjusted association of DM on the 2-year risk for coronary thrombotic events (CTE), defined as spontaneous myocardial infarction or definite or probable stent thrombosis...
November 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28833252/the-role-of-alcohol-in-identity-construction-among-lgbt-people-a-qualitative-study
#8
Carol Emslie, Jemma Lennox, Lana Ireland
Research suggests that alcohol use and misuse are higher among lesbian, gay and bisexual than heterosexual populations, yet the social context of drinking in sexual minority communities has rarely been examined. To explore lesbian, gay, bisexual and transgender (LGBT) people's relationship with alcohol, we conducted seven focus groups (N = 33) with pre-existing groups of friends and work colleagues (18 to 52 years) in Scotland, UK. We identified and analysed patterns in our data using thematic analysis. Respondents perceived heavy drinking as central to the commercial gay scene...
August 19, 2017: Sociology of Health & Illness
https://www.readbyqxmd.com/read/28720301/a-quantitative-swab-is-a-good-non-invasive-alternative-to-a-quantitative-biopsy-for-quantifying-bacterial-load-in-wounds-healing-by-second-intention-in-horses
#9
COMPARATIVE STUDY
L L Van Hecke, K Hermans, M Haspeslagh, K Chiers, E Pint, F Boyen, A M Martens
The aim of this study was to evaluate different techniques for diagnosing wound infection in wounds healing by second intention in horses and to assess the effect of a vortex and sonication protocol on quantitative bacteriology in specimens with a histologically confirmed biofilm. In 50 wounds healing by second intention, a clinical assessment, a quantitative swab, a semi-quantitative swab, and a swab for cytology were compared to a quantitative tissue biopsy (reference standard). Part of the biopsy specimen was examined histologically for evidence of a biofilm...
July 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28670784/gene-environment-interactions-involving-functional-variants-results-from-the-breast-cancer-association-consortium
#10
Myrto Barrdahl, Anja Rudolph, John L Hopper, Melissa C Southey, Annegien Broeks, Peter A Fasching, Matthias W Beckmann, Manuela Gago-Dominguez, J Esteban Castelao, Pascal Guénel, Thérèse Truong, Stig E Bojesen, Susan M Gapstur, Mia M Gaudet, Hermann Brenner, Volker Arndt, Hiltrud Brauch, Ute Hamann, Arto Mannermaa, Diether Lambrechts, Lynn Jongen, Dieter Flesch-Janys, Kathrin Thoene, Fergus J Couch, Graham G Giles, Jacques Simard, Mark S Goldberg, Jonine Figueroa, Kyriaki Michailidou, Manjeet K Bolla, Joe Dennis, Qin Wang, Ursula Eilber, Sabine Behrens, Kamila Czene, Per Hall, Angela Cox, Simon Cross, Anthony Swerdlow, Minouk J Schoemaker, Alison M Dunning, Rudolf Kaaks, Paul D P Pharoah, Marjanka Schmidt, Montserrat Garcia-Closas, Douglas F Easton, Roger L Milne, Jenny Chang-Claude
Investigating the most likely causal variants identified by fine-mapping analyses may improve the power to detect gene-environment interactions. We assessed the interplay between 70 single nucleotide polymorphisms identified by genetic fine-scale mapping of susceptibility loci and 11 epidemiological breast cancer risk factors in relation to breast cancer. Analyses were conducted on up to 58,573 subjects (26,968 cases and 31,605 controls) from the Breast Cancer Association Consortium, in one of the largest studies of its kind...
November 1, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28575575/tunable-mechanochemistry-of-lithium-battery-electrodes
#11
Nitin Muralidharan, Casey N Brock, Adam P Cohn, Deanna Schauben, Rachel E Carter, Landon Oakes, D Greg Walker, Cary L Pint
The interplay between mechanical strains and battery electrochemistry, or the tunable mechanochemistry of batteries, remains an emerging research area with limited experimental progress. In this report, we demonstrate how elastic strains applied to vanadium pentoxide (V2O5), a widely studied cathode material for Li-ion batteries, can modulate the kinetics and energetics of lithium-ion intercalation. We utilize atomic layer deposition to coat V2O5 materials onto the surface of a shapememory superelastic NiTi alloy, which allows electrochemical assessment at a fixed and measurable level of elastic strain imposed on the V2O5, with strain state assessed through Raman spectroscopy and X-ray diffraction...
June 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28453780/variation-in-maturity-onset-diabetes-of-the-young-genes-influence-response-to-interventions-for-diabetes-prevention
#12
RANDOMIZED CONTROLLED TRIAL
Liana K Billings, Kathleen A Jablonski, A Sofia Warner, Yu-Chien Cheng, Jarred B McAteer, Laura Tipton, Alan R Shuldiner, David A Ehrmann, Alisa K Manning, Dana Dabelea, Paul W Franks, Steven E Kahn, Toni I Pollin, William C Knowler, David Altshuler, Jose C Florez
Context: Variation in genes that cause maturity-onset diabetes of the young (MODY) has been associated with diabetes incidence and glycemic traits. Objectives: This study aimed to determine whether genetic variation in MODY genes leads to differential responses to insulin-sensitizing interventions. Design and Setting: This was a secondary analysis of a multicenter, randomized clinical trial, the Diabetes Prevention Program (DPP), involving 27 US academic institutions...
August 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28408616/association-study-confirmed-three-breast-cancer-specific-molecular-subtype-associated-susceptibility-loci-in-chinese-han-women
#13
Yihui Xu, Mengyun Chen, Chenchen Liu, Xiaowei Zhang, Wei Li, Huaidong Cheng, Jun Zhu, Mingjun Zhang, Zhendong Chen, Bo Zhang
BACKGROUND: Breast cancer is a heterogeneous and polygenic disease that can be divided into different molecular subtypes based on histological and genomic features. To date, numerous susceptibility loci of breast cancer have been discovered by genome-wide association studies and may expand the genetic features. However, few loci have been further studied according to molecular subtypes. MATERIALS AND METHODS: We genotyped 23 recently discovered single nucleotide polymorphisms using the Sequenom iPLEX platform in a female Chinese cohort of 3,036 breast cancer patients (2,935 samples matched molecular subtypes) and 3,036 healthy controls...
August 2017: Oncologist
https://www.readbyqxmd.com/read/28370563/short-and-solid-culm-rfl-apo2-for-culm-development-in-rice
#14
Juan Wang, Ruci Wang, Yueming Wang, Li Zhang, Li Zhang, Yufang Xu, Shanguo Yao
The culm development of rice is characterized by elongation and medullary cavity (MC) formation, which are determined by node formation meristem and residual meristem, respectively. Although many factors have been shown to affect culm elongation, molecules involved in MC formation remained to be identified. In this study, we show that a point mutation in SHORT and SOLID CULM (SSC), the rice homologue of Arabidopsis LFY, resulted in plants with drastically reduced culm length and completely abolished MC formation...
March 28, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28349484/in-vitro-and-ex-vivo-models-to-study-t-cell-migration-through-the-human-liver-parenchyma
#15
Benjamin G Wiggins, Konstantinos Aliazis, Scott P Davies, Gideon Hirschfield, Patricia F Lalor, Gary Reynolds, Zania Stamataki
The liver is the largest internal organ and filters around 3 pints of blood per minute. This continuous flux of blood should not be confused with rapid egress of lymphocytes through the liver; this organ has intricate corridors of specialized sinusoidal spaces, ensuring that immune cells decelerate to shear flow rates, and providing ample opportunities to interact with parenchymal cells. Migration has been intricately linked to T cell function; it is therefore important to study liver T cell biology into context within the liver microenvironment...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28329389/radial-versus-femoral-access-in-patients-with-acute-coronary-syndromes-with-or-without-st-segment-elevation
#16
RANDOMIZED CONTROLLED TRIAL
Pascal Vranckx, Enrico Frigoli, Martina Rothenbühler, Francesco Tomassini, Stefano Garducci, Giuseppe Andò, Andrea Picchi, Paolo Sganzerla, Anita Paggi, Fabrizio Ugo, Arturo Ausiello, Gennaro Sardella, Nicoletta Franco, Marco Nazzaro, Nicoletta de Cesare, Paolo Tosi, Camillo Falcone, Carlo Vigna, Pietro Mazzarotto, Emilio Di Lorenzo, Claudio Moretti, Gianluca Campo, Carlo Penzo, Giampaolo Pasquetto, Dik Heg, Peter Jüni, Stephan Windecker, Marco Valgimigli
Aims: To assess whether radial compared with femoral access is associated with consistent outcomes in patients with ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation acute coronary syndrome (NSTE-ACS). Methods and results: In the Minimizing Adverse Haemorrhagic Events by TRansradial Access Site and Systemic Implementation of angioX (MATRIX) programme patients were randomized to radial or femoral access, stratified by STEMI (2001 radial, 2009 femoral) and NSTE-ACS (2196 radial, 2198 femoral)...
April 7, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28318469/interfaces-in-oxides-formed-on-nialcr-doped-with-y-hf-ti-and-b
#17
Torben Boll, Kinga A Unocic, Bruce A Pint, Krystyna Stiller
This study applies atom probe tomography (APT) to analyze the oxide scales formed on model NiAlCr alloys doped with Hf, Y, Ti, and B. Due to its ability to measure small amounts of alloying elements in the oxide matrix and its ability to quantify segregation, the technique offers a possibility for detailed studies of the dopant's fate during high-temperature oxidation. Three model NiAlCr alloys with different additions of Hf, Y, Ti, and B were prepared and oxidized in O2 at 1,100°C for 100 h. All specimens showed an outer region consisting of different spinel oxides with relatively small grains and the protective Al2O3-oxide layer below...
March 20, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28302288/valvular-heart-disease-patients-on-edoxaban-or-warfarin-in-the-engage%C3%A2-af-timi-48-trial
#18
RANDOMIZED CONTROLLED TRIAL
Raffaele De Caterina, Giulia Renda, Anthony P Carnicelli, Francesco Nordio, Marco Trevisan, Michele F Mercuri, Christian T Ruff, Elliott M Antman, Eugene Braunwald, Robert P Giugliano
BACKGROUND: The use of non-vitamin K antagonist oral anticoagulants (NOACs) instead of vitamin K antagonists (VKAs) in patients with atrial fibrillation (AF) and coexisting valvular heart disease (VHD) is of substantial interest. OBJECTIVES: This study explored outcomes in patients with AF with and without VHD in the ENGAGE AF-TIMI 48 (Effective Anticoagulation with factor Xa Next Generation in Atrial Fibrillation-Thrombolysis In Myocardial Infarction 48) trial, comparing edoxaban with warfarin...
March 21, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28272233/age-and-cigarette-smoking-modulate-the-relationship-between-pulmonary-function-and-arterial-stiffness-in-heart-failure-patients
#19
Li Li, Bangchuan Hu, Shijin Gong, Yihua Yu, Jing Yan
The aim of this study was to assess the relationship between arterial stiffness and pulmonary function in chronic heart failure (CHF).Outpatients previously diagnosed as CHF were enrolled between April 2008 and March 2010, and submitted to arterial stiffness measurement and lung function assessment. Spirometry was performed by measuring forced vital capacity (FVC), the fraction of predicted FVC, forced expiratory volume in 1 second (FEV1), the percentage of predicted FEV1 in 1 second, FEV1 to FVC ratio, and the percentage of predicted FEV1/FVC...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28204911/selection-of-transformation-efficient-barley-genotypes-based-on-tfa-transformation-amenability-haplotype-and-higher-resolution-mapping-of-the-tfa-loci
#20
Hiroshi Hisano, Brigid Meints, Matthew J Moscou, Luis Cistue, Begoña Echávarri, Kazuhiro Sato, Patrick M Hayes
The genetic substitution of transformation amenability alleles from 'Golden Promise' can facilitate the development of transformation-efficient lines from recalcitrant barley cultivars. Barley (Hordeum vulgare) cv. 'Golden Promise' is one of the most useful and well-studied cultivars for genetic manipulation. In a previous report, we identified several transformation amenability (TFA) loci responsible for Agrobacterium-mediated transformation using the F2 generation of immature embryos, derived from 'Haruna Nijo' × 'Golden Promise,' as explants...
April 2017: Plant Cell Reports
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