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https://www.readbyqxmd.com/read/28622945/safety-of-intracoronary-provocative-testing-for-the-diagnosis-of-coronary-artery-spasm
#1
Giuseppe Ciliberti, Sreenivasa Rao Kondapally Seshasai, Giuseppe Ambrosio, Juan Carlos Kaski
AIMS: Systematic review of literature to evaluate safety of intracoronary (i.c.) pharmacologic testing with acetylcholine (ACh), or ergonovine (ERGO), to induce coronary artery spasm. METHODS AND RESULTS: Review of all relevant publications using MEDLINE and EMBASE databases yielded 10 publications, totalling 9,444 patients. Prevalence of provoked spasm varied from 2.3% to 54.7% of patients tested in the selected studies. The wide variability in prevalence was due to heterogeneity of study populations and provocation protocols...
June 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28533890/effect-of-music-tempo-on-exercise-performance-and-heart-rate-among-young-adults
#2
Avinash E Thakare, Ranjeeta Mehrotra, Ayushi Singh
BACKGROUND & OBJECTIVES: Music captures attention, triggers a range of emotions, alters or regulates mood, increases work output, heightens arousal, induces states of higher functioning, reduces inhibitions and encourages rhythmic movement. Music has ergo-genic effect as well, it increases exercise performance, delays fatigue and increases performance and endurance, power and strength. Our study tried to evaluate the effect of music on exercise performance in young untrained subjects...
2017: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/28532045/electrochemically-reduced-graphene-oxide-poly-glycine-composite-modified-electrode-for-sensitive-determination-of-l-dopa
#3
Venkata Narayana Palakollu, Neeta Thapliyal, Tirivashe E Chiwunze, Rajshekhar Karpoormath, Sivanandhan Karunanidhi, Srinivasulu Cherukupalli
A facile preparation strategy based on electrochemical technique for the fabrication of glycine (Poly-Gly) and electrochemically reduced graphene oxide (ERGO) composite modified electrode was developed. The morphology of the developed composite (ERGO/Poly-Gly) was investigated using field emission scanning electron microscope (FE-SEM). The composite modified glassy carbon electrode (GCE) was characterized using fourier transform-infrared (FT-IR) spectroscopy, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV)...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28472750/effect-of-the-presence-of-cholesterol-in-the-interfacial-microenvironment-on-the-modulation-of-the-alkaline-phosphatase-activity-during-in-vitro-mineralization
#4
B F Favarin, M A R Andrade, M Bolean, A M S Simão, A P Ramos, M F Hoylaerts, J L Millán, P Ciancaglini
Mineralization of the skeleton starts within cell-derived matrix vesicles (MVs); then, minerals propagate to the extracellular collagenous matrix. Tissue-nonspecific alkaline phosphatase (TNAP) degrades inorganic pyrophosphate (PPi), a potent inhibitor of mineralization, and contributes Pi (Phosphate) from ATP to initiate mineralization. Compared to the plasma membrane, MVs are rich in Cholesterol (Chol) (∼32%) and TNAP, but how Chol influences TNAP activity remains unclear. We have reconstituted TNAP in liposomes of dipalmitoylphosphatidylcholine (DPPC) or dioleoylphosphatidylcholine (DOPC) combined with Chol or its derivatives Cholestenone (Achol) and Ergosterol (Ergo)...
April 26, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28460072/exploring-the-structure-of-fucosylated-chondroitin-sulfate-through-bottom-up-nuclear-magnetic-resonance-and-electrospray-ionization-high-resolution-mass-spectrometry-approaches
#5
Gustavo Rc Santos, Ana Co Porto, Paulo Ag Soares, Eduardo Vilanova, Paulo As Mourão
Fucosylated chondroitin sulfate (FCS) from sea cucumbers is composed of a chondroitin sulfate (CS) central core and branches of sulfated fucose. The structure of this complex glycosaminoglycan is usually investigated via nuclear magnetic resonance (NMR) analyses of the intact molecule, ergo through a top-down approach, which often yield spectra with intricate sets of signals. Here we employed a bottom-up approach to analyze the FCSs from the sea cucumbers Isostichopus badionotus and Ludwigothurea grisea from their basic constituents, viz...
July 1, 2017: Glycobiology
https://www.readbyqxmd.com/read/28433808/comparisons-of-hip-strength-and-countermovement-jump-height-in-elite-tennis-players-with-and-without-acute-history-of-groin-injuries
#6
V Moreno-Pérez, A Lopez-Valenciano, D Barbado, J Moreside, J L L Elvira, F J Vera-Garcia
BACKGROUND: Despite the high groin-injury (GI) prevalence in tennis, no studies have assessed the extent to which intrinsic groin injury risk factors, such as hip muscle strength, have recovered in elite tennis players with a history of previous GI. OBJECTIVE: To investigate whether elite tennis players with a history of GI show differences in hip strength and jump height between injured and uninjured limbs and compared with dominant limb in tennis players without history of acute groin-injuries (NGI)...
June 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28425050/oxidative-protein-modification-alters-proteostasis-under-acute-hypobaric-hypoxia-in-skeletal-muscles-a-comprehensive-in-vivo-study
#7
Akanksha Agrawal, Richa Rathor, Geetha Suryakumar
While numerous maladies are associated with hypobaric hypoxia, muscle protein loss is an important under studied topic. Hence, the present study was designed to investigate the mechanism of muscle protein loss at HH. SD rats were divided into normoxic rats, while remaining rats were exposed to simulated hypoxia equivalent to 282-torr pressure (equal to an altitude of 7620 m, 8% oxygen), at 25 °C for 6, 12, and 24 h. Post-exposure rats were sacrificed and analysis was performed. Ergo, muscle loss-related changes were observed at 12 and 24 h post-HH exposure...
May 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28366086/post-hoc-ergo-propter-hoc
#8
E Jane Costello
No abstract text is available yet for this article.
April 1, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28338464/-doceo-ergo-sum-le-mentorat-des-chirurgiens
#9
Vivian McAlister
No abstract text is available yet for this article.
April 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28338463/doceo-ergo-sum-mentoring-surgeons
#10
Vivian McAlister
No abstract text is available yet for this article.
April 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28296182/endothelial-progenitors-a-consensus-statement-on-nomenclature
#11
Reinhold J Medina, Chad L Barber, Florence Sabatier, Francoise Dignat-George, Juan M Melero-Martin, Kiarash Khosrotehrani, Osamu Ohneda, Anna M Randi, Jerry K Y Chan, Teruhide Yamaguchi, Victor W M Van Hinsbergh, Mervin C Yoder, Alan W Stitt
Endothelial progenitor cell (EPC) nomenclature remains ambiguous and there is a general lack of concordance in the stem cell field with many distinct cell subtypes continually grouped under the term "EPC." It would be highly advantageous to agree on standards to confirm an endothelial progenitor phenotype and this should include detailed immunophenotyping, potency assays, and clear separation from hematopoietic angiogenic cells which are not endothelial progenitors. In this review, we seek to discourage the indiscriminate use of "EPCs," and instead propose precise terminology based on defining cellular phenotype and function...
May 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28281760/modeling-closed-equilibrium-systems-of-h2o-dissolved-co2-solid-caco3
#12
Toomas Tenno, Kalev Uiga, Alexsey Mashirin, Ivar Zekker, Ergo Rikmann
In many places in the world, including North Estonia, the bedrock is limestone, which consists mainly of CaCO3. Equilibrium processes in water involving dissolved CO2 and solid CaCO3 play a vital role in many biological and technological systems. The solubility of CaCO3 in water is relatively low. Depending on the concentration of dissolved CO2, the solubility of CaCO3 changes, which determines several important ground- and wastewater parameters, for example, Ca(2+) concentration and pH. The distribution of ions and molecules in the closed system solid H2O-dissolved CO2-solid CaCO3 is described in terms of a structural scheme...
April 12, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28243561/colorimetric-gas-detection-by-the-varying-thickness-of-a-thin-film-of-ultrasmall-ptsa-coated-tio2-nanoparticles-on-a-si-substrate
#13
Urmas Joost, Andris Šutka, Meeri Visnapuu, Aile Tamm, Meeri Lembinen, Mikk Antsov, Kathriin Utt, Krisjanis Smits, Ergo Nõmmiste, Vambola Kisand
Colorimetric gas sensing is demonstrated by thin films based on ultrasmall TiO2 nanoparticles (NPs) on Si substrates. The NPs are bound into the film by p-toluenesulfonic acid (PTSA) and the film is made to absorb volatile organic compounds (VOCs). Since the color of the sensing element depends on the interference of reflected light from the surface of the film and from the film/silicon substrate interface, colorimetric detection is possible by the varying thickness of the NP-based film. Indeed, VOC absorption causes significant swelling of the film...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28239634/dataset-for-an-analysis-of-communicative-aspects-of-finance
#14
Natalya Zavyalova
The article describes a step-by-step strategy for designing a universal comprehensive vision of a vast majority of financial research topics. The strategy is focused around the analysis of the retrieval results of the word processing system Serelex which is based on the semantic similarity measure. While designing a research topic, scientists usually employ their individual background. They rely in most cases on their individual assumptions and hypotheses. The strategy, introduced in the article, highlights the method of identifying components of semantic maps which can lead to a better coverage of any scientific topic under analysis...
April 2017: Data in Brief
https://www.readbyqxmd.com/read/28112658/nitrite-inhibition-and-limitation-the-effect-of-nitrite-spiking-on-anammox-biofilm-suspended-and-granular-biomass
#15
Markus Raudkivi, Ivar Zekker, Ergo Rikmann, Priit Vabamäe, Kristel Kroon, Taavo Tenno
Anaerobic ammonium oxidation (anammox) has been studied extensively while no widely accepted optimum values for nitrite (both a substance and inhibitor) has been determined. In the current paper, nitrite spiking (abruptly increasing nitrite concentration in reactor over 20 mg NO(-)2-NL(-1)) effect on anammox process was studied on three systems: a moving bed biofilm reactor (MBBR), a sequencing batch reactor (SBR) and an upflow anaerobic sludge blanket (UASB). The inhibition thresholds and concentrations causing 50% of biomass activity decrease (IC50) were determined in batch tests...
January 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28062899/bibi-ergo-sum-the-effects-of-a-placebo-and-contextual-alcohol-cues-on-motivation-to-drink-alcohol
#16
Paul Christiansen, Gareth Townsend, Graeme Knibb, Matt Field
RATIONALE: Acute 'priming' doses of alcohol reliably increase alcohol-seeking behaviour in social drinkers. However, the effects of the anticipated (rather than pharmacological) effects of alcohol, and their interaction with contextual alcohol cues, are not well understood. OBJECTIVES: This study aims to determine the extent to which an alcohol-placebo drink increases craving, subjective intoxication and beer consumption, while conjointly investigating the impact of contextual alcohol cues...
March 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28061420/a-bioinspired-ionic-liquid-tagged-cobalt-salophen-complex-for-nonenzymatic-detection-of-glucose
#17
Michael Benjamin, Devaraj Manoj, Kathavarayan Thenmozhi, Pundlik Rambhau Bhagat, Duraisamy Saravanakumar, Sellappan Senthilkumar
The development of efficient and cost effective nonenzymatic biosensors with remarkable sensitivity, selectivity and stability for the detection of biomolecules, especially glucose is one of the major challenges in materials- and electrochemistry. Herein, we report the design and preparation of nonenzymatic biosensor based on an ionic liquid tagged cobalt-salophen metal complex (Co-salophen-IL) immobilized on electrochemically reduced graphene oxide (ERGO) for the detection of glucose via an electrochemical oxidation...
May 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28056439/fe3o4-nanoparticles-on-graphene-oxide-sheets-for-isolation-and-ultrasensitive-amperometric-detection-of-cancer-biomarker-proteins
#18
Mohamed Sharafeldin, Gregory W Bishop, Snehasis Bhakta, Abdelhamid El-Sawy, Steven L Suib, James F Rusling
Ultrasensitive mediator-free electrochemical detection for biomarker proteins was achieved at low cost using a novel composite of Fe3O4 nanoparticles loaded onto graphene oxide (GO) nano-sheets (Fe3O4@GO). This paramagnetic Fe3O4@GO composite (1µm size range) was decorated with antibodies against prostate specific antigen (PSA) and prostate specific membrane antigen (PSMA), and then used to first capture these biomarkers and then deliver them to an 8-sensor detection chamber of a microfluidic immunoarray. Screen-printed carbon sensors coated with electrochemically reduced graphene oxide (ERGO) and a second set of antibodies selectively capture the biomarker-laden Fe3O4@GO particles, which subsequently catalyze hydrogen peroxide reduction to detect PSA and PSMA...
May 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28047769/su-g-tep2-12-irochouston-and-mdapl-srs-anthropomorphic-phantom-results
#19
A Molineu, S Kry, P Alvarez, N Hernandez, T Nguyen, D Followill
PURPOSE: To report the results of SRS phantom irradiations METHODS: Anthropomorphic SRS head phantoms were sent to institutions participating in NCI sponsored SRS clinical trials and institutions interested in verifying SRS treatment delivery. The phantom shell was purchased from Phantom Laboratory and altered to house dosimetry and imaging inserts. The imaging insert has 1.9 cm diameter spherical target. The dosimetry insert holds two TLD capsules and radiochromic film in the coronal and sagittal planes through the center of the target...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046447/su-f-t-612-investigation-of-acoustic-neuroma-planning-for-stereotactic-radiosurgery-utilizing-linac-based-cone-collimators
#20
C Yeboah, M Ruschin, Y Lee, A Sarfehnia, B Chugh, S Myrehaug, M Tsao, H Soliman, A Sahgal
PURPOSE: To assess the feasibility of designing clinically-acceptable stereotactic radiosurgery (SRS) plans utilizing linac-based cone collimators for patients presenting with acoustic neuroma. METHODS: Five acoustic neuroma patients with gross tumour volumes (GTVs) of sizes from 1.3 to 2.7 cc were studied. The cranial-caudal extent of the GTVs range from 1.1 to 1.7 cm whereas the largest cross-sectional extent of the lesions varied from 2.0 to 2.4 cm. No PTV margin was added...
June 2016: Medical Physics
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