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https://www.readbyqxmd.com/read/27910835/two-cubic-phases-in-kimzeyite-garnet-from-the-type-locality-magnet-cove-arkansas
#1
Sytle M Antao, Laura A Cruickshank
The crystal structure of an optically anisotropic kimzeyite garnet from Magnet Cove, Arkansas, USA, where it was first discovered, was refined with the Rietveld method, cubic space group, Ia\overline 3 d, and monochromatic [λ = 0.41422 (2) Å] synchrotron high-resolution powder X-ray diffraction (HRPXRD) data. The Rietveld refinement reduced χ(2) and overall R(F(2)) values are 1.840 and 0.0647, respectively. The sample, with the general garnet formula ([8])X3([6])Y2([4])Z3([4])O12, contains an intergrowth of two cubic phases that occur initially as oscillatory growth zoning, and patchy intergrowths arise later from fluid-enhanced dissolution and re-precipitation...
December 1, 2016: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials
https://www.readbyqxmd.com/read/27906053/attenuated-ca-2-release-in-a-mouse-model-of-limb-girdle-muscular-dystrophy-2a
#2
Marino DiFranco, Irina Kramerova, Julio L Vergara, Melissa Jan Spencer
BACKGROUND: Mutations in CAPN3 cause limb girdle muscular dystrophy type 2A (LGMD2A), a progressive muscle wasting disease. CAPN3 is a non-lysosomal, Ca-dependent, muscle-specific proteinase. Ablation of CAPN3 (calpain-3 knockout (C3KO) mice) leads to reduced ryanodine receptor (RyR1) expression and abnormal Ca2+/calmodulin-dependent protein kinase II (Ca-CaMKII)-mediated signaling. We previously reported that Ca(2+) release measured by fura2-FF imaging in response to single action potential stimulation was reduced in old C3KO mice; however, the use of field stimulation prevented investigation of the mechanisms underlying this impairment...
February 24, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27902306/description-of-gloeomargarita-lithophora-gen-nov-sp-nov-a-thylakoid-bearing-basal-branching-cyanobacterium-with-intracellular-carbonates-and-proposal-for-gloeomargaritales-ord-nov
#3
David Moreira, Rosaluz Tavera, Karim Benzerara, Fériel Skouri-Panet, Estelle Couradeau, Emmanuelle Gérard, Céline Loussert Fonta, Eberto Novelo, Yvan Zivanovic, Purificación López-García
A unicellular cyanobacterium, strain Alchichica-D10, was isolated from microbialites of the alkaline Lake Alchichica, Mexico. The cells were short rods (3.9 ± 0.6 μm in length and 1.1 ± 0.1 μm in width) forming biofilms of intense emerald green color. They exhibited red autofluorescence under UV light excitation. UV-visible absorption spectra revealed that they contain chlorophyll a and phycocyanin, and electron microscopy showed the presence of thylakoids. The strain grew within a temperature range of 15-30 °C...
November 21, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27898968/post-artificial-insemination-supplementation-with-calcium-salts-of-soybean-oil-influences-pregnancy-establishment-factors-in-beef-cows
#4
R S Cipriano, R F Cooke, A D Rodrigues, L G T Silva, D W Bohnert, R S Marques, J L M Vasconcelos, A V Pires, R L A Cerri
The objective of this experiment was to compare hormonal, uterine, and conceptus factors associated with pregnancy establishment in beef cows supplemented or not with Ca salts of soybean oil (CSSO) for 21 d beginning after timed AI. One hundred lactating multiparous Nelore cows were allocated to 20 groups of 5 cows/group and timed inseminated on d 0 of the experiment. After AI, groups were randomly assigned to receive (as-fed basis) 100 g of protein-mineral mix + 100 g of ground corn per cow per day, in addition to 1) 100 g/cow daily of CSSO ( = 10) or 2) 100 g/cow daily of kaolin (CON; rumen-inert indigestible substance; = 10)...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898918/particle-size-of-calcium-carbonate-does-not-affect-apparent-and-standardized-total-tract-digestibility-of-calcium-retention-of-calcium-or-growth-performance-of-growing-pigs
#5
L A Merriman, H H Stein
Two experiments were conducted to evaluate particle size of calcium carbonate used in diets fed to growing pigs. Experiment 1 was conducted to determine apparent total tract digestibility (ATTD), standardized total tract digestibility (STTD), and retention of Ca among diets containing calcium carbonate produced to different particle sizes, and Exp. 2 was conducted to determine if growth performance of weanling pigs is affected by particle size of calcium carbonate. In Exp. 1, 4 diets based on corn and potato protein isolate were formulated to contain 0...
September 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27895793/evaluation-of-recurrent-disease-in-the-re-staging-of-colorectal-cancer-by-18-f-fdg-pet-ct-use-of-cea-and-ca-19-9-in-patient-selection
#6
Agostino Chiaravalloti, Alessandro Fiorentini, Erika Palombo, Davide Rinino, Annamaria Lacanfora, Roberta Danieli, Carmen Di Russo, Daniele Di Biagio, Ettore Squillaci, Orazio Schillaci
The aim of the present retrospective study was to evaluate the sensitivity and specificity of fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) in assessing the recurrence of colorectal cancer (CRC) with regard to carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9). (18)F-FDG PET/CT was performed in 100 patients for the re-staging of CRC. Therapy was discontinued prior to the examination. The mean (± standard deviation) CEA value (measured ~30 days prior to PET/CT examination) was 23...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27890738/ventricular-arrhythmias-associated-with-left-ventricular-non-compaction-electrophysiological-characteristics-mapping-and-ablation
#7
Daniele Muser, Jackson J Liang, Walter R T Witschey, Rajeev K Pathak, Simon Castro, Silvia Magnani, Erica S Zado, Fermin C Garcia, Benoit Desjardins, David J Callans, David S Frankel, Francis E Marchlinski, Pasquale Santangeli
BACKGROUND: Left ventricular non-compaction (LVNC) is a primary cardiomyopathy that can present with recurrent ventricular arrhythmias (VAs). Data on the benefit of catheter ablation (CA) of VAs in LVNC are lacking. OBJECTIVES: To describe the electrophysiologic features and outcomes of CA of VAs in LVNC. METHODS: The cohort consisted of 9 patients (age 42±15 years) with diagnosis of LVNC based upon established criteria and VA (VT in 3 and frequent PVCs in 6) despite treatment with a mean of 2±1 antiarrhythmic drugs (AADs)...
November 23, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27889932/interaction-of-hepes-buffer-with-glass-ceramic-scaffold-can-hepes-replace-tris-in-sbf
#8
Dana Rohanová, Diana Horkavcová, Laine Paidere, Aldo Roberto Boccaccini, Pavlína Bozděchová, Petr Bezdička
An international standard (ISO: 23317:2014) exists for the in vitro testing of inorganic biomaterials in simulated body fluid (SBF). This standard uses TRIS buffer to maintain neutral pH in SBF, but in our previous paper, we showed that the interaction of a tested glass-ceramic material with TRIS can produce false-positive results. In this study, we evaluated whether the HEPES buffer, which also belongs to the group of Good's buffers, would be more suitable for SBF. We compared its suitability in two media: SBF with HEPES and demineralized water with HEPES...
November 27, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/27885879/a-high-preoperative-carbohydrate-antigen-19-9-level-is-a-risk-factor-for-recurrence-in-stage-ii-colorectal-cancer
#9
Hiroaki Nozawa, Soichiro Ishihara, Kazushige Kawai, Keisuke Hata, Tomomichi Kiyomatsu, Toshiaki Tanaka, Takeshi Nishikawa, Kensuke Otani, Koji Yasuda, Kazuhito Sasaki, Koji Murono, Toshiaki Watanabe
BACKGROUND: Many risk factors for recurrence in stage II colorectal cancer (CRC) have been proposed, and the efficacy of adjuvant chemotherapy is still controversial. This study aimed to identify risk factors for tumor recurrence and assess whether they are related to the benefits of adjuvant chemotherapy in stage II CRC. MATERIAL AND METHODS: Patients with stage II CRC that was curatively operated on in a tertiary hospital between 2005 and 2014 were analyzed. Cox's proportional hazards models were applied to identify risk factors for recurrence and overall mortality...
November 25, 2016: Acta Oncologica
https://www.readbyqxmd.com/read/27876827/soil-organic-carbon-accumulation-during-post-agricultural-succession-in-a-karst-area-southwest-china
#10
Liqiong Yang, Pan Luo, Li Wen, Dejun Li
This study was aimed to investigate the direction and magnitude of soil organic carbon (SOC) dynamics and the underlying mechanisms following agricultural abandonment in a subtropical karst area, southwest China. Two post-agriculture succession sequences including grassland (~10 years), shrubland (~29 years), secondary forest (~59 years) and primary forest with cropland as reference were selected. SOC and other soil physicochemical variables in the soil depth of 0-15 cm (representing the average soil depth of the slope in the studied area) were measured...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27872635/rhizosphere-organic-anions-play-a-minor-role-in-improving-crop-species-ability-to-take-up-residual-phosphorus-p-in-agricultural-soils-low-in-p-availability
#11
Yanliang Wang, Tore Krogstad, Jihong L Clarke, Moritz Hallama, Anne F Øgaard, Susanne Eich-Greatorex, Ellen Kandeler, Nicholas Clarke
Many arable lands have accumulated large reserves of residual phosphorus (P) and a relatively large proportion of soil P is less available for uptake by plants. Root released organic anions are widely documented as a key physiological strategy to enhance P availability, while limited information has been generated on the contribution of rhizosphere organic anions to P utilization by crops grown in agricultural soils that are low in available P and high in extractable Ca, Al, and Fe. We studied the role of rhizosphere organic anions in P uptake from residual P in four common crops Triticum aestivum, Avena sativa, Solanum tuberosum, and Brassica napus in low- and high-P availability agricultural soils from long-term fertilization field trials in a mini-rhizotron experiment with four replications...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27865776/post-cardiac-arrest-shock-treated-with-veno-arterial-extracorporeal-membrane-oxygenation-an-observational-study-and-propensity-score-analysis
#12
Wulfran Bougouin, Nadia Aissaoui, Alain Combes, Nicolas Deye, Lionel Lamhaut, Daniel Jost, Carole Maupain, Frankie Beganton, Adrien Bouglé, Nicole Karam, Florence Dumas, Eloi Marijon, Xavier Jouven, Alain Cariou
PURPOSE: Cardiogenic shock due to post-resuscitation myocardial dysfunction is a major cause of mortality among patients hospitalized after cardiac arrest (CA). Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) has been proposed in the most severe cases but the level of evidence is very low. We assessed characteristics, outcome and prognostic factors of patients treated with VA-ECMO for post-CA shock. METHODS: Using a large regional registry, we focused on all CA admitted in ICU...
November 17, 2016: Resuscitation
https://www.readbyqxmd.com/read/27862043/pulmonary-vein-isolation-with-the-cryoballoon-technique-feasibility-procedural-outcomes-and-adoption-in-the-real-world-data-from-one-shot-technologies-to-pulmonary-vein-isolation-1stop-project
#13
Luigi Padeletti, Antonio Curnis, Claudio Tondo, Maurizio Lunati, Stefano Porcellini, Roberto Verlato, Luigi Sciarra, Gaetano Senatore, Domenico Catanzariti, Loira Leoni, Maurizio Landolina, Pietro Delise, Saverio Iacopino, Paolo Pieragnoli, Giuseppe Arena
BACKGROUND: Catheter ablation (CA) is recommended for patients with drug refractory symptomatic atrial fibrillation (AF). "One Shot" catheters have been introduced to simplify CA and cryoballoon-ablation (CBA) is spreading rapidly. Few real-world data are available on standard clinical practice, mainly from single center experience. We aimed to evaluate clinical settings, demographics and acute procedural outcomes in a large cohort of patients treated with CBA. METHODS: 903 patients (73% male, mean age 59±11) underwent pulmonary veins CBA...
November 10, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27849143/chromium-vi-sorption-efficiency-of-acid-activated-banana-peel-over-organo-montmorillonite-in-aqueous-solutions
#14
Anam Ashraf, Irshad Bibi, Nabeel Khan Niazi, Yong Sik Ok, Ghulam Murtaza, Muhammad Shahid, Anitha Kunhikrishnan, Dongwei Li, Tariq Mahmood
In the present study, we examined sorption of chromate (Cr(VI)) to acid-activated banana peel (AABP) and organo-montmorillonite (O-mont) as a function of pH, initial Cr(VI) concentration at a sorbent dose of 4 g L(-1) and at 20±1°C in aqueous solutions. In sorption edge experiments, maximum Cr(VI) removal was obtained at pH 3 after 2 hours by AABP and O-mont (88% and 69%). Sorption isotherm data showed that sorption capacity of AABP was higher than O-mont (15.1 vs. 6.67 mg g(-1), respectively, at pH 4)...
November 16, 2016: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/27837311/17%C3%AE-estradiol-induced-interaction-of-estrogen-receptor-%C3%AE-and-human-atrial-essential-myosin-light-chain-modulates-cardiac-contractile-function
#15
Karolin Duft, Miriam Schanz, Hang Pham, Ahmed Abdelwahab, Cindy Schriever, Georgios Kararigas, Elke Dworatzek, Mercy M Davidson, Vera Regitz-Zagrosek, Ingo Morano, Shokoufeh Mahmoodzadeh
Chronic increased workload of the human heart causes ventricular hypertrophy, re-expression of the atrial essential myosin light chain (hALC-1), and improved contractile function. Although hALC-1 is an important positive inotropic regulator of the human heart, little is known about its regulation. Therefore, we investigated the role of the sex hormone 17β-estradiol (E2) on hALC-1 gene expression, the underlying molecular mechanisms, and the impact of this regulatory process on cardiac contractile function...
January 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/27837162/sensor-life-and-overnight-closed-loop-a-randomized-clinical-trial
#16
Martin Tauschmann, Janet M Allen, Malgorzata E Wilinska, Yue Ruan, Hood Thabit, Carlo L Acerini, David B Dunger, Roman Hovorka
BACKGROUND: Closed-loop (CL) systems direct insulin delivery based on continuous glucose monitor (CGM) sensor values. CGM accuracy varies with sensor life, being least accurate on day 1 of sensor insertion. We evaluated the effect of sensor life (enhanced Enlite, Medtronic MiniMed, Northridge, CA) on overnight CL. METHODS: In an open-label, randomized, 2-period, inpatient crossover pilot study, 12 adolescents on insulin pump (age 16.7 ± 1.9 years; HbA1c 66 ± 10 mmol/mol) attended a clinical research facility on 2 overnight occasions...
November 10, 2016: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/27832793/cryopreservation-and-xenografting-of-human-ovarian-fragments-medulla-decreases-the-phosphatidylserine-translocation-rate
#17
Vladimir Isachenko, Plamen Todorov, Evgenia Isachenko, Gohar Rahimi, Bettina Hanstein, Mahmoud Salama, Peter Mallmann, Andrey Tchorbanov, Paul Hardiman, Natalie Getreu, Markus Merzenich
BACKGROUND: Phosphatidylserine is the phospholipid component which plays a key role in cell cycle signaling, specifically in regards to necrosis and apoptosis. When a cell affected by some negative factors, phosphatidylserine is no longer restricted to the intracellular side of membrane and can be translocated to the extracellular surface of the cell. Cryopreservation can induce translocation of phosphatidylserine in response to hypoxia, increasing intracellular Ca(2+), osmotic disruption of cellular membranes, generation of reactive oxygen species and lipid peroxidation...
November 10, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27831975/long-term-outcomes-of-pediatric-cranial-reconstruction-using-resorbable-plating-systems-for-the-treatment-of-craniosynostosis
#18
Leslie G Branch, Clayton Crantford, Teresa Cunningham, Gaurav Bharti, James Thompson, Dan Couture, Lisa R David
BACKGROUND: Resorbable plating in cranial reconstruction for craniosynostosis has fewer reported complications than rigid hardware. Few long-term outcome studies exist for pediatric patients treated with this technology for cranial vault reconstruction. METHODS: A retrospective review was performed on pediatric patients undergoing cranial vault reconstruction for craniosynostosis by 3 surgeons over a 15-year period. MacroPore (Cytori Therapeutics, San Diego, CA) or Lactosorb (Walter Lorenz Surgical Inc, Jacksonville, FL), composed of polyglycolic and polylactic acids, was used for resorbable plate fixation...
November 9, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27816933/effects-of-dynamic-feeding-low-and-high-methionine-diets-on-egg-quality-traits-in-laying-hens
#19
Y Liu, X Lin, X Zhou, D Wan, Z Wang, X Wu, Y Yin
This study was conducted to investigate effects of dynamic feeding low and high methionine (MET) diets on performance, egg quality traits, and serum metabolites in laying hens. A total of 180 laying hens (Brown Hy-line, 41 wk old) were allocated into 3 equal groups with 6 replicates each. The average egg production (EP) of each group was around 87% during one-week statistics before the formal experiment (P = 0.989). The control group (CON) received the control diet (contained 0.30% MET) at both 07:30 h and 15:30 hours...
November 5, 2016: Poultry Science
https://www.readbyqxmd.com/read/27816823/protease-activity-and-phytocystatin-expression-in-arabidopsis-thaliana-upon-heterodera-schachtii-infection
#20
Mateusz Labudda, Elżbieta Różańska, Joanna Szewińska, Mirosław Sobczak, Jolanta Maria Dzik
The activity of plant proteases is important for amino acids recycling, removal of damaged proteins as well as defence responses. The second-stage juvenile of the beet cyst nematode Heterodera schachtii penetrates host roots and induces the feeding site called a syncytium. To determine whether infection by H. schachtii affects proteolysis, the protease activity was studied in Arabidopsis roots and shoots at the day of inoculation and 3, 7 and 15 days post inoculation (dpi). Nematode infection caused a decrease of protease activities in infected roots over the entire examination period at all studied pH values...
October 26, 2016: Plant Physiology and Biochemistry: PPB
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