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https://www.readbyqxmd.com/read/28934229/above-and-below-ground-carbohydrate-allocation-differs-between-ash-fraxinus-excelsior-l-and-beech-fagus-sylvatica-l
#1
Ronny Thoms, Michael Köhler, Arthur Gessler, Gerd Gleixner
We investigated soluble carbohydrate transport in trees that differed in their phloem loading strategies in order to better understand the transport of photosynthetic products into the roots and the rhizosphere as this knowledge is needed to better understand the respiratory processes in the rhizosphere. We compared beech, which is suggested to use mainly passive loading of transport sugars along a concentration gradient into the phloem, with ash that uses active loading and polymer trapping of raffinose family oligosaccharides (RFOs)...
2017: PloS One
https://www.readbyqxmd.com/read/28933324/photobacterium-toruni-sp-nov-a-bacterium-isolated-from-diseased-farmed-fish
#2
Alejandro M Labella, David R Arahal, Teresa Lucena, Manuel Manchado, Dolores Castro, Juan J Borrego
Three bacterial strains were isolated from liver and spleen of diseased farmed redbanded seabream (Pagrus auriga) in south-west Spain. Their partial 16S rRNA gene sequences clustered within those of the genus Photobacterium, showing high similarity (98.6-99.3 %) to the type strains of Photobacterium iliopiscarium, P. piscicola, P. kishitanii, P. aquimaris and P. phosphoreum. Multilocus sequence analysis using six housekeeping genes (gapA, topA, mreB, ftsZ, gyrB and 16S rRNA) confirmed the new strains as forming an independent branch with a bootstrap value of 100, likely to represent a novel species...
September 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28933161/identifying-the-structural-basis-for-the-increased-stability-of-the-solid-electrolyte-interphase-formed-on-silicon-with-the-additive-fluoroethylene-carbonate
#3
Yanting Jin, Nis-Julian H Kneusels, Pieter C M M Magusin, Gunwoo Kim, Elizabeth Castillo-Martinez, Lauren E Marbella, Rachel N Kerber, Duncan J Howe, Subhradip Paul, Tao Liu, Clare P Grey
To elucidate the role of fluoroethylene carbonate (FEC) as an additive in the standard carbonate-based electrolyte for Li-ion batteries, the solid electrolyte interphase (SEI) formed during electrochemical cycling on silicon anodes was analyzed with a combination of solution and solid-state NMR techniques, including dynamic nuclear polarization. To facilitate characterization via 1D and 2D NMR, we synthesized (13)C-enriched FEC, ultimately allowing a detailed structural assignment of the organic SEI. We find that the soluble PEO-like linear oligomeric electrolyte breakdown products that are observed after cycling in the standard ethylene carbonate (EC)-based electrolyte are suppressed in the presence of 10 vol % FEC additive...
September 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28932359/coronary-angiography-findings-in-cardiac-arrest-patients-with-non-diagnostic-post-resuscitation-electrocardiogram-a-comparison-of-shockable-and-non-shockable-initial-rhythms
#4
Pedro Martínez-Losas, Pablo Salinas, Carlos Ferrera, María Teresa Nogales-Romo, Francisco Noriega, María Del Trigo, Iván Javier Núñez-Gil, Luis Nombela-Franco, Nieves Gonzalo, Pilar Jiménez-Quevedo, Javier Escaned, Antonio Fernández-Ortiz, Carlos Macaya, Ana Viana-Tejedor
AIM: To investigate the impact of coronary artery disease in a cohort of patients resuscitated from cardiac arrest with non-diagnostic electrocardiogram. METHODS: From March 2004 to February 2016, 203 consecutive patients resuscitated from in or out-of-hospital sudden cardiac arrest and non-diagnostic post-resuscitation electrocardiogram (defined as ST segment elevation or pre-sumably new left bundle branch block) who underwent invasive coronary angiogram during hospitalization were included...
August 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28931522/three-dimensional-morphometric-analysis-of-the-renal-vasculature
#5
Zohaib Khan, Jennifer P Ngo, Bianca Le, Roger G Evans, James Todd Pearson, Bruce S Gardiner, David W Smith
Vascular topology and morphology is critical in the regulation of blood flow and the transport of small solutes including oxygen, carbon dioxide, nitric oxide and hydrogen sulfide. Renal vascular morphology is particularly challenging as many arterial walls are partially wrapped by the walls of veins. In the absence of a precise characterization of three-dimensional branching vascular geometry, accurate computational modeling of the intrarenal transport of small diffusible molecules is impossible. An enormous manual effort was required to achieve a relatively precise characterization of rat renal vascular geometry, highlighting the need for an automated method for analysis of branched vasculature morphology to allow characterization of the renal vascular geometry of other species, including humans...
September 20, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28929276/the-photosynthetic-responses-to-stocking-depth-and-algal-mat-density-in-the-farmed-seaweed-gracilaria-lemaneiformis-gracilariales-rhodophyta
#6
Heng Jiang, Dinghui Zou, Weizhou Chen, Yufeng Yang
The branches and mass of Gracilaria lemaneiformis increase with growth season, and the thalli sink to deeper depths with increasing biomass density during maricultivation. The changing depth and algal mat density may affect the physiology of the algae. In the present study, the photosynthetic behaviors regarding different biomass densities in G. lemaneiformis thalli collected from different stocking depths were determined, to examine how photosynthesis of this farmed alga was affected by the growth depths and algal mat densities...
September 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28928506/perennial-legumes-as-a-source-of-ingredients-for-healthy-food-proximate-mineral-and-phytoestrogen-composition-and-antibacterial-activity
#7
Bronislava Butkutė, Audrius Padarauskas, Jurgita Cesevičienė, Alvydas Pavilonis, Lukas Taujenis, Nijolė Lemežienė
ABSTRACT: Perennial legumes have been used as edible or medicinal plants since ancient times. The focus of the current study are perennial legumes-Trifolium pratense L., T. medium L., Medicago sativa L., M. lupulina L., Onobrychis viciifolia Scop., Astragalus glycyphyllos L. and A. cicer L.-of branching stage as a potential source of value-added ingredients for healthy food. Freeze-dried samples were analysed for proximal composition, mineral, isoflavone and coumestrol contents as well as for antimicrobial activity...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928045/the-electrocardiographic-triangular-qrs-st-t-waveform-pattern-in-patients-with-st-segment-elevation-myocardial-infarction-incidence-pathophysiology-and-clinical-implications
#8
Alberto Cipriani, Gianpiero D'Amico, Giulia Brunello, Martina Perazzolo Marra, Federico Migliore, Luisa Cacciavillani, Giuseppe Tarantini, Barbara Bauce, Sabino Iliceto, Domenico Corrado, Alessandro Zorzi
BACKGROUND: A specific ECG pattern of presentation of ST-segment elevation acute myocardial infarction (STEMI), characterized by "triangular QRS-ST-T waveform" (TW), has been associated with poor in-hospital prognosis but longitudinal data on its incidence and clinical impact are lacking. We prospectively evaluated the incidence and prognostic meaning of the TW pattern in a cohort of consecutive STEMI patients. METHODS: All STEMI patients who presented within 12h of symptoms onset and showed no complete bundle branch block or paced ventricular rhythm were included...
August 16, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28927679/-mediastinitis-after-endobronchial-ultrasound-guided-transbronchial-needle-aspiration
#9
D Basille, F De Dominicis, E Magois, C Andrejak, P Berna, V Jounieaux
INTRODUCTION: Endobronchial ultrasound guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive procedure used for the diagnosis of mediastinal and hilar lymphadenopathy. OBSERVATION: We describe a case of mediastinitis appearing 15 days after an EBUS-TBNA procedure in a 79 years old male patient. The mediastinitis was treated surgically by thoracotomy with a wide excision of infected tissue requiring transplantation of a serratus anterior muscle flap pedicled on a branch of the thoracodorsal artery...
September 16, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28926877/-clinical-effects-of-repair-of-wounds-in-fingers-after-electrical-burn-with-wrist-perforator-free-flaps
#10
H P Di, C D Xia, P P Xing, Q Li, D W Han, J D Xue, D Y Cao
Objective: To explore the clinical effects of repair of wounds in the fingers after electrical burn with wrist perforator free flaps. Methods: Twelve patients (13 fingers) with electrical burn were hospitalized in our burn ward from January 2016 to January 2017. After radical debridement, the size of wounds ranged from 5.0 cm×2.0 cm to 10.0 cm×7.0 cm. Wounds with size below or equal to 6.0 cm ×2.5 cm were repaired with free flaps based on the superficial palmar branch of radial artery, with flap area ranging from 2...
September 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28926411/lower-mitochondrial-dna-and-altered-mitochondrial-fuel-metabolism-in-hiv-exposed-uninfected-infants-in-cameroon
#11
Jennifer Jao, Kathleen M Powis, Brian Kirmse, Chunli Yu, Fanny Epie, Emmanuel Nshom, Elaine J Abrams, Rhoda S Sperling, Derek Leroith, Mitchell E Geffner, Irwin J Kurland, Hélène C F Côté
OBJECTIVE: Evaluate blood mitochondrial DNA (mtDNA) content in HIV/antiretroviral (ARV)-exposed uninfected (HEU) vs. HIV-unexposed uninfected (HUU) infants and investigate differences in mitochondrial-related metabolites by exposure group. DESIGN: We enrolled a prospective cohort of HIV-infected and -uninfected pregnant woman/infant pairs in Cameroon. METHODS: Dried blood spot mtDNA:nuclear DNA ratio was measured by monochrome multiplex qPCR in HEU infants exposed to in utero ARVs and postnatal zidovudine (HEU-Z) or nevirapine (HEU-N), and in HUU infants at 6 weeks of life...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926354/neointimal-coverage-of-jailed-side-branches-in-coronary-bifurcation-lesions-an-optical-coherence-tomography-analysis
#12
Teruyoshi Kume, Ryotaro Yamada, Koyama Terumasa, Tomoko Tamada, Koichiro Imai, Kenzo Fukuhara, Yutaka Goryo, Ai Kawamura, Okamoto Hiroshi, Yoji Neishi, Shiro Uemura
OBJECTIVES: The jailed strut at the side-branch (SB) orifice may be a cause of delayed neointimal coverage and SB flow disturbance after single stenting to bifurcation. The aim of this study was to characterize the exact relationship between the jailed strut pattern at the SB orifice immediately after stent implantation and neointimal coverage of the jailed SB orifice in the chronic phase. PATIENTS AND METHODS: A total of 29 bifurcation (left anterior descending coronary artery and diagonal branch) lesions treated by optical coherence tomography-guide single-stent implantation and followed at 18 months after a percutaneous coronary intervention were included in this study...
September 18, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28925802/higher-prevalence-of-spontaneous-cerebral-vasculopathy-and-cerebral-infarcts-in-a-mouse-model-of-sickle-cell-disease
#13
Hyacinth I Hyacinth, Courtney L Sugihara, Thomas L Spencer, David R Archer, Andy Y Shih
Stroke is a dramatic complication of sickle cell disease (SCD), which is associated with cerebral vasculopathies including moya moya, intravascular thrombi, cerebral hyperemia, and increased vessel tortuosity. The spontaneous occurrence of these pathologies in the sickle cell mouse model has not been described. Here, we studied Townes humanized sickle cell and age-matched control mice that were 13 months old. We used in vivo two-photon microscopy to assess blood flow dynamics, vascular topology, and evidence of cerebral vasculopathy...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28925736/chronological-changes-in-tip-cells-during-sprouting-angiogenesis-of-development-of-the-retinal-vasculature-in-newborn-mice
#14
Chang Sik Cho, Sang-Mok Lee, Byung Joo Lee, Dong Hyun Jo, Jin Hyoung Kim, Jeong Hun Kim, Young Suk Yu
PURPOSE: To investigate a sequential chronological change in tip cells during the development of the retinal vasculature in newborn mice. MATERIALS AND METHODS: Newborn C57BL/6 mice were used for this study. To elucidate the patterns in the developing retinal vasculature, histology, and immunohistochemistry-antiplatelet endothelial cell adhesion molecule-1, anticollagen type IV, isolectin IB4-were performed on sections of mouse retina on postnatal days (P)-4, -8, and -12...
September 19, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28925512/suprafascial-dissection-of-the-pedicled-groin-flap-a-safe-and-practical-approach-to-flap-harvest
#15
Mohamed Abdelrahman, Jonathan Zelken, Ren-Wen Huang, Chung-Chen Hsu, Chih-Hung Lin, Yu-Te Lin, Cheng-Hung Lin
BACKGROUND: The groin flap has been relied upon for more than 4 decades and is well suited for reconstruction of the mutilated hand. Classic groin flap harvest is subfascial and includes the superficial circumflex iliac artery (SCIA). SCIA perforator flaps have shown that one perforator is sufficient to supply a large flap without breaching fascia. Accordingly, we routinely preserve the fascia and rely wholly on the superficial branch of the SCIA, sparing the deep branch. We aim to investigate the safety of suprafascial flap elevation and encourage a paradigm shift in reconstruction with groin flap transfer...
September 19, 2017: Microsurgery
https://www.readbyqxmd.com/read/28923586/genetic-code-asymmetry-supports-diversity-through-experimentation-with-posttranslational-modifications
#16
REVIEW
James W Dennis
Protein N-glycosylation has been identified in all three domains of life presumably conserved for its early role in glycoprotein folding. However, the N-glycans added to proteins in the secretory pathway of multicellular organisms are remodeling in the Golgi, increasing structural diversity exponentially and adding new layers of functionality in immunity, metabolism and other systems. The branching and elongation of N-glycan chains found on cell surface receptors generates a gradation of affinities for carbohydrate-binding proteins, the galectin, selectin and siglec families...
September 15, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28922697/low-frequency-ranibizumab-versus-dexamethasone-implant-for-macular-oedema-secondary-to-branch-retinal-vein-occlusion
#17
Bora Yuksel, Omer Karti, Ozan Celik, Suleyman Gokhan Kerci, Tuncay Kusbeci
BACKGROUND: The aim was to make a real-world comparison of the efficacy of ranibizumab, dexamethasone and grid laser treatments in macular oedema due to branch retinal vein occlusion (BRVO). METHODS: Forty-four eyes of 44 consecutive patients with macular oedema secondary to BRVO were included. Treatment arms comprised standard care (StCARE, n = 15), intravitreal ranibizumab (RNB, n = 14) and dexamethasone implant (DEX, n = 15). No rescue laser was performed in DEX and RNB groups...
September 18, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28921550/sugars-from-woody-tissue-photosynthesis-reduce-xylem-vulnerability-to-cavitation
#18
Niels J F De Baerdemaeker, Roberto Luis Salomón, Linus De Roo, Kathy Steppe
Reassimilation of internal CO2 via woody tissue photosynthesis has a substantial effect on tree carbon income and wood production. However, little is known about its role in xylem vulnerability to cavitation and its implications in drought-driven tree mortality. Young trees of Populus nigra were subjected to light exclusion at the branch and stem levels. After 40 d, measurements of xylem water potential, diameter variation and acoustic emission (AE) were performed in detached branches to obtain acoustic vulnerability curves to cavitation following bench-top dehydration...
September 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28920841/desertibacillus-haloalkaliphilus-gen-nov-sp-nov-isolated-from-a-saline-desert
#19
Hitarth B Bhatt, M Azmatunnisa Begum, Sasikala Chintalapati, Venkata Ramana Chintalapati, Satya P Singh
Two Gram-stain-positive, rod-shaped and endospore-forming bacteria that represent a single species, designated strains KJ1-10-99T and KJ1-10-93, were isolated from a saline desert of Little Rann of Kutch, Gujarat, India. Analysis of 16S rRNA gene sequences revealed that the isolates belonged to the family Bacillaceae and were closely related to each other with 16S rRNA gene sequence similarity of 99.9 %. However, these two isolates formed a novel phylogenetic branch within this family. Both strains were aerobic, catalase and oxidase positive, and could grow optimally at 37 °C and pH 9...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28917919/structural-characteristics-of-water-soluble-polysaccharides-from-norway-spruce-picea-abies
#20
Evgeny G Shakhmatov, Vladimir A Belyy, Elena N Makarova
Arabinogalactan proteins and pectic polysaccharides were isolated from greenery of Picea abies by water extraction. Main elements of their structure were determined by ion-exchange chromatography, partial acid and enzymatic hydrolysis, and NMR spectroscopy. It was established that the backbone of pectin macromolecules of greenery of P. abies is represented by segments of partially methyl-esterified and acetylated 1,4-α-d-galactopyranosyluronan, and partially 2-O- and/or 3-O-acetylated RG-I with side chains consisting of highly-branched 1,5-α-l-arabinan segments...
November 1, 2017: Carbohydrate Polymers
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