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https://www.readbyqxmd.com/read/29789182/geodermatophilus-chilensis-sp-nov-from-soil-of-the-yungay-core-region-of-the-atacama-desert-chile
#1
Jean Franco Castro, Imen Nouioui, Vartul Sangal, Martha E Trujillo, Maria Del Carmen Montero-Calasanz, Tara Rahmani, Alan T Bull, Juan A Asenjo, Barbara A Andrews, Michael Goodfellow
A polyphasic study was undertaken to establish the taxonomic status of three representative Geodermatophilus strains isolated from an extreme hyper-arid Atacama Desert soil. The strains, isolates B12T , B20 and B25, were found to have chemotaxonomic and morphological properties characteristic of the genus Geodermatophilus. The isolates shared a broad range of chemotaxonomic, cultural and physiological features, formed a well-supported branch in the Geodermatophilus 16S rRNA gene tree in which they were most closely associated with the type strain of Geodermatophilus obscurus...
April 4, 2018: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/29789137/serratus-intercostal-interfascial-block-as-an-opioid-saving-strategy-in-supra-umbilical-open-surgery
#2
M T Fernández Martín, S López Álvarez, M A Pérez Herrero
INTRODUCTION: The administration of local anaesthetic in the serratus-intercostal space provides adequate analgesia in non-reconstructive breast surgery. The aim of this study was to evaluate whether the blockage of the last intercostal nerves (T7-T11) can lead to opioid savings in supra-umbilical open surgery procedures. MATERIAL AND METHODS: A prospective observational study was conducted on patients undergoing open supra-umbilical surgery under general anaesthesia and with a serratus-intercostal plane block [modified Blocking the bRanches of IntercostaL nerves in the Middle Axillary line (BRILMA)] as an associated analgesic strategy...
May 19, 2018: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/29784542/the-ovary-organization-in-the-marine-limnodriloidin-thalassodrilides-cf-briani-annelida-clitellata-naididae-resembles-the-ovary-of-freshwater-tubificins
#3
Anna Z Urbisz, Łukasz Chajec, Mana Ito, Katsutoshi Ito
In Thalassodrilides cf. briani, the paired ovaries are inconspicuous and polarized structures with developmental gradient of germ cells along their long axis. The about 300 germ cells in the ovary are consolidated into one syncytial cyst and each cell is connected to a common and branched mass of cytoplasm via one stable cytoplasmic bridge. The germ cells differentiate their fate into nurse cells and oocytes. Only one oocyte grows in a given time; it gathers cell organelles and yolk and then it detaches from the gonad...
May 12, 2018: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/29781274/the-synthesis-of-branched-trehalose-glycolipids-and-their-mincle-agonist-activity
#4
Jessie H Bird, Ashna A Khan, Naoya Nishimura, Sho Yamasaki, Mattie S M Timmer, Bridget L Stocker
The macrophage inducible C-type lectin (Mincle) is a pattern recognition receptor that recognises trehalose dimycolate (TDM), and trehalose dibehenate (TDB) and related trehalose diesters, and thus represents a promising target for the development of vaccine adjuvants based on the trehalose glycolipid scaffold. To this end, we report on the synthesis of a series of long-chain α-branched, β-modified trehalose monoesters and diesters to explore how glycolipid structure affects signalling through Mincle. Key steps in our synthetic strategy include a Fráter-Seebach α-alkylation to install the C20 aliphatic lipid on a malic acid derivative, and the formation of a β, γ-epoxide as an intermediate from which modifications to the β-position of the lipid can be made...
May 21, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29780934/retinal-vasculitis-associated-with-crest-syndrome
#5
Sungjae Yang, Laura J Kopplin, James T Rosenbaum
Purpose: To report two cases of retinal vasculitis associated with CREST syndrome, a novel ocular finding. Observations: We report two cases of patients with CREST syndrome with ocular inflammatory disease. Patient 1 presented with a right unilateral panuveitis with extensive retinal vasculitis and evidence of prior uveitis in the contralateral eye. Patient 2 presented with a left branch retinal artery occlusion and bilateral retinal vasculitis. Both patients underwent treatment with prednisone and mycophenolate motefil...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780894/multiple-re-entry-closures-after-tevar-for-ruptured-chronic-post-dissection-thoraco-abdominal-aortic-aneurysm
#6
R Kinoshita, F Ganaha, J Ito, N Ohyama, N Abe, T Yamazato, H Munakata, K Mabuni, T Kugai
Introduction: Although thoracic endovascular aortic repair (TEVAR) has become a promising treatment for complicated acute type B dissection, its role in treating chronic post-dissection thoraco-abdominal aortic aneurysm (TAA) is still limited owing to persistent retrograde flow into the false lumen (FL) through abdominal or iliac re-entry tears. Report: A case of chronic post-dissection TAA treatment, in which a dilated descending FL ruptured into the left thorax, is described...
2018: EJVES Short Reports
https://www.readbyqxmd.com/read/29779826/the-bckdh-kinase-and-phosphatase-integrate-bcaa-and-lipid-metabolism-via-regulation-of-atp-citrate-lyase
#7
Phillip J White, Robert W McGarrah, Paul A Grimsrud, Shih-Chia Tso, Wen-Hsuan Yang, Jonathan M Haldeman, Thomas Grenier-Larouche, Jie An, Amanda L Lapworth, Inna Astapova, Sarah A Hannou, Tabitha George, Michelle Arlotto, Lyra B Olson, Michelle Lai, Guo-Fang Zhang, Olga Ilkayeva, Mark A Herman, R Max Wynn, David T Chuang, Christopher B Newgard
Branched-chain amino acids (BCAA) are strongly associated with dysregulated glucose and lipid metabolism, but the underlying mechanisms are poorly understood. We report that inhibition of the kinase (BDK) or overexpression of the phosphatase (PPM1K) that regulates branched-chain ketoacid dehydrogenase (BCKDH), the committed step of BCAA catabolism, lowers circulating BCAA, reduces hepatic steatosis, and improves glucose tolerance in the absence of weight loss in Zucker fatty rats. Phosphoproteomics analysis identified ATP-citrate lyase (ACL) as an alternate substrate of BDK and PPM1K...
May 11, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29779653/chemoenzymatic-dissection-of-polyketide-%C3%AE-branching-in-the-bryostatin-pathway
#8
Samuel T Slocum, Andrew N Lowell, Ashootosh N Tripathi, Vikram V Shende, Janet L Smith, David H Sherman
β-Branching is an expansion upon canonical polyketide synthase extension that allows for the installation of diverse chemical moieties in several natural products. Several of these moieties are unique among natural products, including the two vinyl methylesters found in the core structure of bryostatins. This family of molecules is derived from an obligate bacterial symbiont of a sessile marine bryozoan, Bugula neritina. Within this family, bryostatin 1 has been investigated as an anticancer, neuroprotective, and immunomodulatory compound...
2018: Methods in Enzymology
https://www.readbyqxmd.com/read/29776407/comparative-genomics-of-the-miniature-wasp-and-pest-control-agent-trichogramma-pretiosum
#9
Amelia R I Lindsey, Yogeshwar D Kelkar, Xin Wu, Dan Sun, Ellen O Martinson, Zhichao Yan, Paul F Rugman-Jones, Daniel S T Hughes, Shwetha C Murali, Jiaxin Qu, Shannon Dugan, Sandra L Lee, Hsu Chao, Huyen Dinh, Yi Han, Harsha Vardhan Doddapaneni, Kim C Worley, Donna M Muzny, Gongyin Ye, Richard A Gibbs, Stephen Richards, Soojin V Yi, Richard Stouthamer, John H Werren
BACKGROUND: Trichogrammatids are minute parasitoid wasps that develop within other insect eggs. They are less than half a millimeter long, smaller than some protozoans. The Trichogrammatidae are one of the earliest branching families of Chalcidoidea: a diverse superfamily of approximately half a million species of parasitoid wasps, proposed to have evolved from a miniaturized ancestor. Trichogramma are frequently used in agriculture, released as biological control agents against major moth and butterfly pests...
May 18, 2018: BMC Biology
https://www.readbyqxmd.com/read/29775663/free-breathing-ultrashort-echo-time-lung-magnetic-resonance-imaging-using-stack-of-spirals-acquisition-a-feasibility-study-in-oncology-patients
#10
Min Jae Cha, Hyun Jeong Park, Mun Young Paek, Alto Stemmer, Eun Sun Lee, Sung Bin Park, Yang Soo Kim
OBJECTIVES: To investigate the diagnostic accuracy of lung magnetic resonance imaging (MRI) with a free-breathing three-dimensional ultrashort echo time spoiled gradient echo sequence using a stack-of-spirals acquisition (spiral 3D UTE) for pulmonary nodule detection at 3 T in oncology patients. METHODS: The institutional review board approved this retrospective study. Between June and September of 2017, 32 oncology patients underwent both free-breathing spiral 3D UTE of the lungs and thin-section chest computed tomography (CT) for pulmonary metastasis workups...
May 15, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29775351/masses-and-%C3%AE-decay-spectroscopy-of-neutron-rich-odd-odd-160-162-eu-nuclei-evidence-for-a-subshell-gap-with-large-deformation-at-n-98
#11
D J Hartley, F G Kondev, R Orford, J A Clark, G Savard, A D Ayangeakaa, S Bottoni, F Buchinger, M T Burkey, M P Carpenter, P Copp, D A Gorelov, K Hicks, C R Hoffman, C Hu, R V F Janssens, J W Klimes, T Lauritsen, J Sethi, D Seweryniak, K S Sharma, H Zhang, S Zhu, Y Zhu
The structure of deformed neutron-rich nuclei in the rare-earth region is of significant interest for both the astrophysics and nuclear structure fields. At present, a complete explanation for the observed peak in the elemental abundances at A∼160 eludes astrophysicists, and models depend on accurate quantities, such as masses, lifetimes, and branching ratios of deformed neutron-rich nuclei in this region. Unusual nuclear structure effects are also observed, such as the unexpectedly low energies of the first 2^{+} levels in some even-even nuclei at N=98...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29771540/mechanistic-study-of-the-reactions-of-methyl-peroxy-radical-with-methanol-or-hydroxyl-methyl-radical
#12
Zhongrui Zhao, Jinou Song, Boyang Su, Xiaowen Wang, Zhijun Li
An ab initio and direct dynamic study on the reactions of CH3O2 + CH3OH and CH3O2 + CH2OH has been carried out over the temperature range of 300 - 1500 K. All stationary points were calculated at MP2/Aug-cc-pVTZ level of theory for CH3O2 + CH3OH or at M06-2X/MG3S level of theory for CH3O2 + CH2OH and identified for local minimum. The energetic parameters were refined at QCISD (T)/cc-pVTZ and CCSD (T)/aug-cc-pVTZ levels of theory. For the reaction of CH3OO + CH3OH, two hydrogen abstraction channels producing CH3OOH+CH2OH (R1) and CH3OOH+CH3O (R2) were confirmed...
May 17, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29771518/a-theoretical-study-of-pyrolysis-of-jp-10-exo-tetrahydrodicyclopentadiene-and-its-primary-and-secondary-unimolecular-decomposition-products
#13
Alexander N Morozov, Alexander Moiseevich Mebel, Ralf I Kaiser
Theoretical calculations of the rate constants and product branching ratios in the pyrolysis of exo-tetrahydrodicyclopentadiene (JP-10) and its initial decomposition products at combustion-relevant pressures and temperatures have been performed and compared to the experimental results from the recently reported molecular beam photoionization mass spectrometry study of the pyrolysis of JP-10 (Zhao, L.; Yang, T.; Kaiser, R. I.; Troy, T. P.; Xu, B.; Ahmed, M.; Alarcon, J.; Belisario-Lara, D.; Mebel, A. M.; Zhang, Y...
May 17, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29771311/pathobiology-of-cardiac-dyssynchrony-and-resynchronization-therapy
#14
Uyên Châu Nguyên, Nienke J Verzaal, Frans A van Nieuwenhoven, Kevin Vernooy, Frits W Prinzen
Synchronous ventricular electrical activation is a prerequisite for adequate left ventricular (LV) systolic function. Conduction abnormalities such as left bundle branch block, and ventricular pacing lead to a dyssynchronous electrical activation sequence, which may have deleterious consequences. The present review attempts to connect the various processes involved in the development of 'dyssynchronopathy', and its correction by cardiac resynchronization therapy (CRT). Abnormal electrical impulse conduction leads to abnormal contraction, characterized by regional differences in timing as well as shortening patterns and amount of external work performed...
May 15, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29766432/cl-initiated-photo-oxidation-reactions-of-methyl-propionate-in-atmospheric-condition
#15
Ramya Cheramangalath Balan, Rajakumar Balla
Cl-initiated photo-oxidation reaction of methyl propionate was investigated experimentally using relative rate method. Gas chromatography/mass spectrometry (GC-MS) and GC/infrared spectroscopy (GC-IR) were used as analytical tools to follow the concentrations of reactants and products during reaction. The gas-phase kinetics of methyl propionate with Cl atoms was measured over the temperature range of 263-363 K at 760 Torr in N2 atmosphere using C2 H6 and C2 H4 as reference compounds. The temperature-dependent rate coefficient for the reaction of methyl propionate with Cl atom was obtained as k(T) = [(3...
May 15, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29763480/spontaneous-regression-of-merkel-cell-carcinoma
#16
Sean Branch, Kenneth Maloney, Stephen M Purcell
A 96-year-old woman presented with a rapidly enlarging lesion overlying the suprasternal notch. The lesion originated as a small, erythematous, scaly macule that rapidly increased in size over 8 weeks and became an ulcerated nodule measuring 5 cm in diameter and 4.5 cm in thickness. A 4-mm punch biopsy showed a poorly differentiated tumor with cells that were positive for CAM 5.2 and cytokeratin 20 in a dotlike paranuclear pattern and negative for cytokeratin 5/6, human melanoma black 45, and leukocyte common antigen...
April 2018: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29762775/combination-superficial-temporal-artery-middle-cerebral-artery-bypass-and-m2-m2-reanastomosis-with-trapping-of-a-stented-distal-middle-cerebral-artery-aneurysm-3-dimensional-operative-video
#17
Jan-Karl Burkhardt, Sonia Yousef, Halima Tabani, Arnau Benet, Roberto Rodriguez Rubio, Michael T Lawton
Distal middle cerebral artery (MCA) aneurysms often have non-saccular morphology and cannot be clipped, requiring revascularization and trapping instead. Combination bypasses are needed when 2 arteries exit the aneurysm, and extracranial-intracranial and intracranial-intracranial bypasses can be used. This video demonstrates a combination bypass used to treat a previously stented distal MCA aneurysm with both a superficial temporal artery (STA)-to-MCA bypass and an M2-to-M2 reanastomosis. This 56-yr-old man presented with distal left-sided MCA aneurysm 2 years earlier and attempted stent-assisted coiling was aborted after the aneurysm was perforated with stenting alone...
May 12, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29760332/dry-thermotropic-glycolipid-self-assembly-a-review
#18
Rauzah Hashim, N Idayu Zahid, T S Velayutham, Nurul Fadhilah Kamalul Aripin, Shigesaburo Ogawa, Akihiko Sugimura
Also recognized as carbohydrate liquid crystals, glycolipids are amphiphiles whose basic unit comprises of a sugar group attached to an alkyl chain. Glycolipids are amphitropic, which means these materials form liquid crystal self-assemblies when dry (thermotropic) as well as when dissolved in solvents (lyotropic/surfactants) such as water. Many glycolipids are also naturally derived since these can be found in cell membranes. Their membrane and surfactant functions are largely understood through their lyotropic properties...
May 15, 2018: Journal of Oleo Science
https://www.readbyqxmd.com/read/29759837/clinical-features-and-sites-of-ablation-for-patients-with-incessant-supraventricular-tachycardia-from-concealed-nodofascicular-and-nodoventricular-tachycardias
#19
Frederick T Han, Eric M Riles, Nitish Badhwar, Melvin M Scheinman
OBJECTIVES: This study sought to describe the clinical features and sites of successful ablation for incessant nodofascicular (NF) and nodoventricular (NV) tachycardias. BACKGROUND: Incessant supraventricular tachycardias have been associated with tachycardia-induced cardiomyopathies and have been previously attributed to permanent junctional reciprocating tachycardias, atrial tachycardias, and atrioventricular nodal re-entrant tachycardias. Incessant concealed NF and NV tachycardias have not been described previously...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759777/the-impact-of-the-pr-interval-in-patients-receiving-cardiac-resynchronization-therapy-results-from-the-reverse-study
#20
Jeffrey Senfield, Claude Daubert, William T Abraham, Stefano Ghio, Martin St John Sutton, Jeffrey Cerkvenik, Cecilia Linde, Michael R Gold
OBJECTIVES: This study sought to evaluate the impact of baseline PR interval on cardiac resynchronization therapy (CRT) outcomes in the REVERSE (Resynchronization Reverses Remodeling in Systolic Left Ventricular Dysfunction) study. BACKGROUND: The baseline electrocardiogram has important prognostic value to determine response to CRT. Specifically, QRS duration and morphology are strong predictors of response and outcomes; however, the prognostic importance of the PR interval is less clear...
August 2017: JACC. Clinical Electrophysiology
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