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https://www.readbyqxmd.com/read/28442331/non-covalent-conjugation-of-cutinase-from-fusarium-sp-ict-sac1-with-pectin-for-enhanced-stability-process-minutiae-kinetics-thermodynamics-and-structural-study
#1
Abhijeet B Muley, Sandeep A Chaudhari, Rekha S Singhal
Cutinase, a member of α/β-fold hydrolase family possess potentially diverse applications in several industrial processes and products. The present work aims towards thermo-stabilization of cutinase from novel source Fusarium sp. ICT SAC1 via non-covalent interaction with polysaccharides. Although all six polysaccharides chosen for study enhanced the thermal stability, pectin was found to be most promising. The interaction protocol for cutinase with pectin was optimized sequentially with respect to the ratio of enzyme to pectin, solution pH, and buffer strength...
April 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28438358/potential-of-oleaginous-yeast-trichosporon-sp-for-conversion-of-sugarcane-bagasse-hydrolysate-into-biodiesel
#2
K K Brar, A K Sarma, Mohammad Aslam, Igor Polikarpov, B S Chadha
This study reports production of microbial oil from a yeast strain Trichosporon sp., (RW) isolated from decayed wood. Preliminary analysis based on fluorescence microscopy and spectroscopy of Nile red stained yeast cells showed accumulation of lipid globules. The potential of the yeast to produce lipids was evaluated on glucose, glycerol and acid hydrolysate of sugarcane bagasse, where Trichosporon sp. (RW) was found to accumulate 21.45 (59.6%), 18.41 (56%) and 10.25g/l (40.5%) of the lipids after 120h of fermentation at 30°C...
March 28, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28429108/phenetic-and-phylogenetic-relationships-among-aceria-spp-acari-eriophyoidea-inhabiting-species-within-the-family-brassicaceae-in-serbia
#3
Zlata Živković, Biljana Vidović, Vida Jojić, Tatjana Cvrković, Radmila Petanović
We examined morphological and genetic differences among Aceria spp. inhabiting six Brassicaceae species in Serbia. Five of them have been already mentioned in the literature as original or alternate hosts of Aceria spp. (Berteroa incana (L.) DC., Capsella bursa-pastoris (L.) Medik., Cardamine hirsuta L., Lepidium draba L. and Sisymbrium orientale L.), whereas Aurinia petraea (Ard.) Schur was registered here for the first time as a host for Aceria sp. Results of morphometric analyses indicated clear differentiation of Aceria spp...
April 20, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28427478/morphological-and-molecular-characteristics-of-malayfilaria-sofiani-uni-mat-udin-takaoka-n-g-n-sp-nematoda-filarioidea-from-the-common-treeshrew-tupaia-glis-diard-duvaucel-mammalia-scandentia-in-peninsular-malaysia
#4
Shigehiko Uni, Ahmad Syihan Mat Udin, Takeshi Agatsuma, Weerachai Saijuntha, Kerstin Junker, Rosli Ramli, Hasmahzaiti Omar, Yvonne Ai-Lian Lim, Sinnadurai Sivanandam, Emilie Lefoulon, Coralie Martin, Daicus Martin Belabut, Saharul Kasim, Muhammad Rasul Abdullah Halim, Nur Afiqah Zainuri, Subha Bhassu, Masako Fukuda, Makoto Matsubayashi, Masashi Harada, Van Lun Low, Chee Dhang Chen, Narifumi Suganuma, Rosli Hashim, Hiroyuki Takaoka, Mohd Sofian Azirun
BACKGROUND: The filarial nematodes Wuchereria bancrofti (Cobbold, 1877), Brugia malayi (Brug, 1927) and B. timori Partono, Purnomo, Dennis, Atmosoedjono, Oemijati & Cross, 1977 cause lymphatic diseases in humans in the tropics, while B. pahangi (Buckley & Edeson, 1956) infects carnivores and causes zoonotic diseases in humans in Malaysia. Wuchereria bancrofti, W. kalimantani Palmieri, Pulnomo, Dennis & Marwoto, 1980 and six out of ten Brugia spp. have been described from Australia, Southeast Asia, Sri Lanka and India...
April 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28425292/lactone-derivatives-produced-by-a-phaeoacremonium-sp-an-endophytic-fungus-from-senna-spectabilis
#5
Geraldo H Silva, Maria L Zeraik, Camila M de Oliveira, Helder L Teles, Henrique C Trevisan, Ludwig H Pfenning, Camila P Nicolli, Maria C M Young, Yvonne P Mascarenhas, Lucas M Abreu, Amanda C Saraiva, Alexandra I Medeiros, Vanderlan da S Bolzani, Angela R Araujo
Three new isoaigialones, A, B, and C (1-3), along with aigialone (4), were isolated from the crude EtOAc extract of a Phaeoacremonium sp., an endophytic fungus obtained from the leaves of Senna spectabilis. The structures of these compounds were elucidated based on the analysis of spectroscopic data. Compounds 2 and 4 were active against the phytopathogenic fungi Cladosporium cladosporioides and C. sphaerospermum. This is the first report of metabolites produced by an Phaeoacremonium sp., associated with S...
April 20, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28419220/genome-sequence-and-physiological-analysis-of-yamadazyma-laniorum-f-a-sp-nov-and-a-reevaluation-of-the-apocryphal-xylose-fermentation-of-its-sister-species-candida-tenuis
#6
Max A B Haase, Jacek Kominek, Quinn K Langdon, Cletus P Kurtzman, Chris Todd Hittinger
Xylose fermentation is a rare trait that is immensely important to the cellulosic biofuel industry, and Candida tenuis is one of the few yeasts that has been reported with this trait. Here we report the isolation of two strains representing a candidate sister species of C. tenuis. Integrated analysis of genome sequence and physiology suggested the genetic basis of a number of traits, including variation between the novel species and C. tenuis in lactose metabolism due to the loss of genes encoding lactose permease and β-galactosidase in the former...
April 17, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28417168/rdx-degradation-in-bioaugmented-model-aquifer-columns-under-aerobic-and-low-oxygen-conditions
#7
Mark E Fuller, Paul B Hatzinger, Charles W Condee, Christina Andaya, Rachel Rezes, Mandy M Michalsen, Fiona H Crocker, Karl J Indest, Carina M Jung, G Alon Blakeney, Jonathan D Istok, Steven A Hammett
Degradation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in laboratory columns following biostimulation and bioaugmentation was investigated using sediment and groundwater from a contaminated aquifer at a US Navy facility. No RDX degradation was observed following aerobic biostimulation with either fructose or lactate (both 0.1 mM) prior to bioaugmentation. Replicate columns were then bioaugmented with either Gordonia sp. KTR9, Pseudomonas fluorescens I-C (Ps I-C), or both strains. Under aerobic conditions (influent dissolved oxygen (DO) >6 mg/L), RDX was degraded following the addition of fructose, and to a lesser extent with lactate, in columns bioaugmented with KTR9...
April 17, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28417119/dehydrogenative-cross-coupling-of-o-carborane-with-thiophenes-via-ir-catalyzed-regioselective-cage-b-h-and-c-sp-2-h-activation
#8
Yangjian Quan, Hairong Lyu, Zuowei Xie
Ir-Catalyzed -COOH directed site-selective B-H/C-H dehydrogenative cross-coupling of o-carborane with thiophenes has been achieved for the first time. Without any pre-functionalization, carboranyl carboxylic acids and thiophenes can serve as suitable coupling partners, resulting in the preparation of 4-thienyl-o-carboranes in a simple one-pot process for potential applications in materials.
April 18, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28415103/p673improvement-of-arterial-stiffness-and-myocardial-deformation-in-patients-with-poorly-controlled-diabetes-mellitus-type-2-after-optimization-of-antidiabetic-medication
#9
I Ikonomidis, G Pavlidis, V Lambadiari, F Kousathana, H Triantafyllidi, M Varoudi, D Vlastos, S Vlachos, G Dimitriadis, J Lekakis
Background: Arterial stiffness is associated with increased risk for cardiovascular disease. The purpose of this study is to investigate the arterial stiffness and myocardial deformation in patients with poorly controlled diabetes mellitus type 2 before and after glycemic control by optimal medication. Methods: In 50 patients with uncontrolled type 2 diabetes(age:52±10years)and 25 controls of similar age and sex and no atherosclerotic risk factors we measured at baseline and 6 months after glycemic control a) carotid-femoral pulse wave velocity(PWVc m/sec-Complior SP ALAM),central systolic blood pressure(cSBP -mmHg),augmentation index(AI%), of the aortic pulse wave(ArteriographTensioMed) b)S',E'(m/sec)andE'/A'of mitral annulus by Tissue Doppler c)LV longitudinal strain(GLS-%),systolic(LongSr-l/sec)and diastolic(LongSrE-l/sec)strain rate, twisting(Tw-deg),peak twisting(Tw)and untwisting(unTw-deg/sec)velocity using speckle tracking echocardiography...
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28413692/photoredox-mediated-routes-to-radicals-the-value-of-catalytic-radical-generation-in-synthetic-methods-development
#10
REVIEW
Jennifer K Matsui, Simon B Lang, Drew R Heitz, Gary A Molander
Photoredox catalysis has experienced a revitalized interest from the synthesis community during the past decade. For example, photoredox/Ni dual catalysis protocols have been developed to overcome several inherent limitations of palladium-catalyzed cross-couplings by invoking a single-electron transmetalation pathway. This Perspective highlights advances made by our laboratory since the inception of the photoredox/Ni cross-coupling of benzyltrifluoroborates with aryl bromides. In addition to broadening the scope of trifluoroborate coupling partners, research using readily oxidized hypervalent silicates as radical precursors that demonstrate functional group compatibility is highlighted...
April 7, 2017: ACS Catalysis
https://www.readbyqxmd.com/read/28406290/cooperative-catalysis-at-metal-sulfur-bonds
#11
Lukas Omann, C David F Königs, Hendrik F T Klare, Martin Oestreich
Cooperative catalysis has attracted tremendous attention in recent years, emerging as a key strategy for the development of novel atom-economic and environmentally more benign catalytic processes. In particular, Noyori-type complexes with metal-nitrogen bonds have been extensively studied and evolved as privileged catalysts in hydrogenation chemistry. In contrast, catalysts containing metal-sulfur bonds as the reactive site are out of the ordinary, despite their abundance in living systems, where they are assumed to play a key role in biologically relevant processes...
April 13, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28405730/sex-related-variations-in-cortical-and-trabecular-bone-of-the-femoral-neck-in-an-elderly-chinese-population
#12
L Wang, X G Cheng, Y B Su, K Brown, L Xu, K Li, C X Zhang, Y Zhang, Y Y Duanmu, X B Wu, M Y Wang
Quantitative computed tomography (QCT) was used to investigate sex-related variations in cortical and trabecular bone of the femoral neck. Cortical bone thickness of women in the superior quadrant was thinner than that of men, and the cortex in all four quadrants was negatively associated with age in women. INTRODUCTION: This cross-sectional study aimed to investigate sex-related similarities and differences in femoral neck structure in an elderly Chinese population by QCT bone investigational toolkit (BIT) analysis...
April 12, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28404689/methoxyluteolin-inhibits-neuropeptide-stimulated-tnf-cxcl8-and-vegf-release-via-mtor-activation-from-human-mast-cells
#13
Arti B Patel, Theoharis C Theoharides
Mast cells (MC) are critical for allergic reactions, but are also important in inflammatory processes. Stimulation by neuropeptides, such as substance P (SP) and neurotensin (NT) leads to release of pre-formed molecules stored in numerous MC secretory granules and newly-synthesized pro-inflammatory mediators, including tumor necrosis factor (TNF), interleukin 8 (CXCL8) and vascular endothelial growth factor (VEGF). Here, we investigate the role of mammalian target of rapamycin (mTOR) signaling in the stimulation of cultured human LAD2 MC by NT or SP, and the inhibitory effect of the natural flavonoids 3',4',5,7-tetrahydroxyflavone (luteolin) and its novel structural analog 3 ',4',5,7-tetramethoxyluteolin (methoxyluteolin)...
April 12, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28393487/poly-3-hydroxybutyrate-co-3-hydroxyvalerate-production-from-biodiesel-by-product-and-propionic-acid-by-mutant-strains-of-pandoraea-sp
#14
Fabrício C de Paula, Jonas Contiero, Carolina B C de Paula, José Gregório C Gomez, Alexander Steinbüchel
Pandoraea sp. MA03 wild type strain was subjected to UV mutation in order to obtain mutants unable to grow on propionic acid (PA) but still able to produce poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB-co-3HV)] from glycerol and PA at high 3HV yields. In shake flask experiments, mutant prp25 was selected from 52 mutants affected in the propionate metabolism exhibiting a conversion rate of PA into 3HV units of 0.78 gg(-1) . The utilization of crude glycerol (CG) plus PA or valeric acid resulted in a copolymer with 3HV contents varying from 21...
April 10, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28392924/-urmitella-timonensis-gen-nov-sp-nov-blautia-marasmi-sp-nov-lachnoclostridium-pacaense-sp-nov-bacillus-marasmi-sp-nov-and-anaerotruncus-rubiinfantis-sp-nov-isolated-from-stool-samples-of-undernourished-african-children
#15
T-P-T Pham, F Cadoret, M Tidjani Alou, S Brah, B Ali Diallo, A Diallo, C Sokhna, J Delerce, P-E Fournier, M Million, D Raoult
We report here the main characteristics of five new species 'Urmitella timonensis' strain Marseille-P2918(T) (CSUR P2918), 'Blautia marasmi' strain Marseille-P2377(T) (CSUR P2377), 'Lachnoclostridium pacaense' strain Marseille-P3100(T) (CSUR P3100), 'Bacillus marasmi' strain Marseille-P3556(T) (CSUR P3556) and 'Anaerotruncus rubiinfantis' strain MT15(T) (CSUR P2276), which were isolated recently from stool samples taken from undernourished children in Niger and Senegal using microbial culturomics.
May 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28392268/antibacterial-secondary-metabolites-from-an-endophytic-fungus-fusarium-solani-jk10
#16
James Oppong Kyekyeku, Souvik Kusari, Reimmel Kwame Adosraku, Anke Bullach, Christopher Golz, Carsten Strohmann, Michael Spiteller
Extensive chemical investigation of the endophytic fungus, Fusarium solani JK10, harbored in the root of the Ghanaian medicinal plant Chlorophora regia, using the OSMAC (One Strain Many Compounds) approach resulted in the isolation of seven new 7-desmethyl fusarin C derivatives (1-7), together with five known compounds (8-12). The structures of the new compounds were elucidated by analysis of their spectroscopic data including 1D, 2D NMR, HRESI-MS(n) and IR data. The relative configuration of compounds 1/2 was deduced by comparison of their experimental electronic circular dichroism (ECD) and optical rotation data with those reported in literature...
April 6, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28390787/biodegradation-and-kinetic-study-of-benzene-in-bioreactor-packed-with-puf-and-alginate-beads-and-immobilized-with-bacillus-sp-m3
#17
M K Kureel, S R Geed, B S Giri, B N Rai, R S Singh
Benzene removal in free and immobilized cells on polyurethane foam (PUF) and polyvinyl alcohol (PVA)-alginate beads was studied using an indigenous soil bacterium Bacillus sp. M3 isolated from petroleum-contaminated soil. The important process parameters (pH, temperature and inoculums size) were optimized and found to be 7, 37°C and 6.0×10(8)CFU/mL, respectively. Benzene removals were observed to be 70, 84 and 90% within 9days in a free cell, immobilized PVA-alginate beads and PUF, respectively under optimum operating conditions...
March 30, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28390429/management-of-scorpion-envenoming-a-systematic-review-and-meta-analysis-of-controlled-clinical-trials
#18
Chaturaka Rodrigo, Ariaranee Gnanathasan
BACKGROUND: Scorpion stings cause an estimated 3000 deaths per annum worldwide. We conducted a systematic review of all controlled clinical trials related to scorpion sting management. METHODS: We searched PubMed, EMBASE, Scopus, Web of Science and CINAHL and included controlled prospective clinical trials (randomized or non-randomized). The following interventions were assessed: adults and children with scorpion stings treated with (a) steroids vs. placebo, (b) different methods of pain relief, (c) antivenom vs...
April 8, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28387202/2016-consensus-statement-on-prevention-of-atherosclerotic-cardiovascular-disease-in-the-hong-kong-population
#19
B My Cheung, C H Cheng, C P Lau, C Ky Wong, R Cw Ma, D Ws Chu, D Hk Ho, K Lf Lee, H F Tse, A Sp Wong, B Py Yan, V Wt Yan
INTRODUCTION: In Hong Kong, the prevalence of atherosclerotic cardiovascular disease has increased markedly over the past few decades, and further increases are expected. In 2008, the Hong Kong Cardiovascular Task Force released a consensus statement on preventing cardiovascular disease in the Hong Kong population. The present article provides an update on these recommendations. PARTICIPANTS: A multidisciplinary group of clinicians comprising the Hong Kong Cardiovascular Task Force-10 cardiologists, an endocrinologist, and a family physician-met in September 2014 and June 2015 in Hong Kong...
April 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28377763/release-of-an-htra-like-protease-from-the-cell-surface-of-thermophilic-brevibacillus-sp-wf146-via-substrate-induced-autoprocessing-of-the-n-terminal-membrane-anchor
#20
Fengtao Zhu, Xing Yang, Yan Wu, Yasi Wang, Xiao-Feng Tang, Bing Tang
High-temperature requirement A (HtrA)-like proteases participate in protein quality control in prokaryotes and eukaryotes by degrading damaged proteins; however, little is known about HtrAs produced by thermophiles. HtrAw is an HtrA-like protease of thermophilic Brevibacillus sp. WF146. The intact form of HtrAw (iHtrAw) consisting of a transmembrane segment-containing N-terminal domain, a trypsin-like protease domain, and a C-terminal PDZ domain was produced in Escherichia coli. Purified iHtrAw itself is unable to cleave the N-terminal domain, but requires protein substrates to autoprocess the N-terminal domain intermolecularly, yielding a short form (sHtrAw)...
2017: Frontiers in Microbiology
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