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https://www.readbyqxmd.com/read/29677629/effects-of-gastric-bypass-surgery-followed-by-supervised-physical-training-on-inflammation-and-endothelial-function-a-randomized-controlled-trial
#1
Charlotte Røn Stolberg, Lene Hymøller Mundbjerg, Peter Funch-Jensen, Bibi Gram, Else-Marie Bladbjerg, Claus Bogh Juhl
BACKGROUND AND AIMS: Obesity and physical inactivity are both associated with low-grade inflammation and endothelial dysfunction. Bariatric surgery improves markers of inflammation and endothelial function, but it is unknown if physical training after bariatric surgery can improve these markers even further. Therefore, we aimed to investigate the effects of Roux-en-Y gastric bypass (RYGB) followed by physical training on markers of low-grade inflammation and endothelial function. METHODS: Sixty patients approved for RYGB underwent examinations pre-surgery, 6, 12, and 24 months post-surgery...
April 6, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29677599/bactericidal-activity-and-mechanisms-of-biobr-agbr-under-both-dark-and-visible-light-irradiation-conditions
#2
Ting Feng, Jialiang Liang, Zhiyao Ma, Mian Li, Meiping Tong
BiOBr-AgBr hybrid photocatalysts were synthesized via a facile precipitation and in-situ ion exchange method at room temperature. The as-synthesized photocatalysts were well characterized with different techniques. The disinfection activities of BiOBr-AgBr towards model bacterial strain Gram-negative Escherichia coli (E. coli) were tested under both dark and visible light irradiation conditions. 1 × 107 CFU/mL of E. coli cells could be completely inactivated by BiOBr-AgBr with the optimal silver amount (BiOBr-0...
April 8, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29677485/octapeptins-lipopeptide-antibiotics-against-multidrug-resistant-superbugs
#3
Antoine Abou Fayad, Jennifer Herrmann, Rolf Müller
Antimicrobial resistance is increasing at an alarming rate. Polymyxin, one of the few antibiotics of last resort, is heavily affected. In this issue of Cell Chemical Biology, Velkov et al. (2018) present a promising alternative: octapeptin lipopeptide antibiotics active against multidrug- and extensively drug-resistant Gram-negative bacteria, which might help overcoming resistance toward polymyxins.
April 19, 2018: Cell Chemical Biology
https://www.readbyqxmd.com/read/29677385/identification-and-characterization-of-two-novel-c-type-lectins-from-the-larvae-of-housefly-musca-domestica-l
#4
Jing Zhou, Nai-Nai Fang, Ya Zheng, Kai-Yu Liu, Bin Mao, Li-Na Kong, Ya Chen, Hui Ai
Lectins and antimicrobial peptides (AMPs) are widely distributed in various insects and play crucial roles in primary host defense against pathogenic microorganisms. Two AMPs (cecropin and attacin) have been identified and characterized in the larvae of housefly. In this study, two novel C-type lectins (CTLs) were obtained from Musca domestica, while their agglutinating and antiviral properties were evaluated. Real-time PCR analysis showed that the mRNA levels of four immune genes (MdCTL1, MdCTL2, Cecropin, and Attacin) from M...
April 20, 2018: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/29677095/milling-the-mistletoe-nanotechnological-conversion-of-african-mistletoe-loranthus-micranthus-intoantimicrobial-materials
#5
Muhammad Sarfraz, Sharoon Griffin, Tamara Gabour Sad, Rama Alhasan, Muhammad Jawad Nasim, Muhammad Irfan Masood, Karl Herbert Schäfer, Chukwunonso E C C Ejike, Cornelia M Keck, Claus Jacob, Azubuike P Ebokaiwe
Nanosizing represents a straight forward technique to unlock the biological activity of complex plant materials. The aim of this study was to develop herbal nanoparticles with medicinal value from dried leaves and stems of Loranthus micranthus with the aid of ball-milling, high speed stirring, and high-pressure homogenization techniques. The milled nanoparticles were characterized using laser diffraction analysis, photon correlation spectroscopy analysis, and light microscopy. The average size of leaf nanoparticles was around 245 nm and that of stem nanoparticles was around 180 nm...
April 20, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29676854/effects-of-candidatus-liberibacter-solanacearum-haplotype-b-on-bactericera-cockerelli-fitness-and-vitellogenesis
#6
Angélica Albuquerque Tomilhero Frias, Freddy Ibanez, Azucena Mendoza, William Mario de Carvalho Nunes, Cecilia Tamborindeguy
'Candidatus Liberibacter solanacearum' (Lso) are phloem-restricted and unculturable gram-negative bacteria. Presently five haplotypes have been identified worldwide; but only haplotypes A and B are associated with the vector Bactericera cockerelli (Šulc.) in the Americas. Previous studies showed that Lso-infection reduces B. cockerelli reproductive output and that Lso haplotype B is more pathogenic than Lso haplotype A. To understand the interaction of Lso haplotype B and B. cockerelli, the fitness of Lso-free and Lso B-infected insects, and the expression of vitellogenin (BcVg1-like), a gene involved directly in the insect reproduction were analyzed...
April 20, 2018: Insect Science
https://www.readbyqxmd.com/read/29676768/exposure-of-bacillus-subtilis-to-silver-inhibits-activity-of-cytochrome-c-oxidase-in-vivo-via-interaction-with-sco-the-cu-a-assembly-protein
#7
Shina Hussain, Diann Andrews, Bruce C Hill
Silver has long been used as an antimicrobial agent in general and medicinal use. Here, we observe that exposure of the Gram-positive, endospore-forming bacterium Bacillus subtilis to Ag(i) effects growth in a biphasic manner. In the first phase at Ag(i) concentrations below 50 μM B. subtilis growth is not affected, but activity of the respiratory enzyme cytochrome c oxidase is disrupted completely. Between 50 to 100 μM Ag(i) B. subtilis growth is drastically diminished and completely absent above 100 μM Ag(i)...
April 20, 2018: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/29676759/characterization-of-the-bacterial-community-in-shower-water-before-and-after-chlorination
#8
Marjolein C F M Peters, Maarten G A Keuten, Aleksandra Knezev, Mark C M van Loosdrecht, Johannes S Vrouwenvelder, Luuk C Rietveld, Merle K de Kreuk
Bathers release bacteria in swimming pool water, but little is known about the fate of these bacteria and potential risks they might cause. Therefore, shower water was characterized and subjected to chlorination to identify the more chlorine-resistant bacteria that might survive in a chlorinated swimming pool and therefore could form a potential health risk. The total community before and after chlorination (1 mg Cl2 L-1 for 30 s) was characterized. More than 99% of the bacteria in the shower water were Gram-negative...
April 2018: Journal of Water and Health
https://www.readbyqxmd.com/read/29676745/pesticide-leaching-by-agricultural-drainage-in-sloping-mid-textured-soil-conditions-the-role-of-runoff-components
#9
Antonín Zajíček, Petr Fučík, Markéta Kaplická, Marek Liška, Jana Maxová, Jakub Dobiáš
Dynamics of pesticides and their metabolites in drainage waters during baseflow periods and rainfall-runoff events (RREs) were studied from 2014 to 2016 at three small, tile-drained agricultural catchments in Bohemian-Moravian Highlands, Czech Republic. Drainage systems in this region are typically built in slopes with considerable proportion of drainage runoff originating outside the drained area itself. Continuous monitoring was performed by automated samplers, and the event hydrograph was separated using 18 O and 2 H isotopes and drainage water temperature...
April 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29676726/rhodohalobacter-barkolensis-sp-nov-isolated-from-a-saline-lake-and-emended-description-of-the-genus-rhodohalobacter
#10
Shuai-Bo Han, Yang-Huan Yu, Zhao Ju, Yu Li, Ran Zhang, Xin-Jun Hou, Xin-Yuan Ma, Xiao-Yun Yu, Cong Sun, Min Wu
A Gram-stain-negative, non-motile, aerobic, rod-shaped bacterium, designated 15182T , was isolated from a saline lake in China. The novel strain 15182T was able to grow at 10-40 °C (optimum, 37 °C), pH 7.0-8.0 (optimum, 7.5) and with 0.5-4 % NaCl (optimum, 2-3 %, w/v). The phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 15182T was most closely related to the genus Rhodohalobacter by sharing the highest sequence similarity of 97.0 % with Rhodohalobacter halophilus JZ3C29T ...
April 20, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29676723/paraburkholderia-caseinilytica-sp-nov-isolated-from-the-pine-and-broad-leaf-mixed-forest-soil
#11
Zeng-Hong Gao, Shu-Fen Zhong, Zu-Er Lu, Sen-Yang Xiao, Li-Hong Qiu
A novel Gram-stain-negative, aerobic, non-spore-forming, motile and rod-shaped bacterial strain, designated HM451T , was isolated from forest soil sampled at the Dinghushan Biosphere Reserve, Guangdong Province, PR China (112° 31' E 23° 10' N). It grew optimally at 28 °C, pH 5.0-6.0 and in the presence of 0-2.5 % (w/v) NaCl on R2A medium. Strain HM451T was closely related to Paraburkholderia mimosarum NBRC 106338T (98.6 % 16S rRNA gene sequence similarity), Paraburkholderia heleia NBRC 101817T (98...
April 20, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29676722/siphonobacter-curvatus-sp-nov-isolated-from-a-freshwater-river
#12
Yunho Lee, Che Ok Jeon
A novel orange-pigmented, Gram-stain-negative and strictly aerobic bacterium, designated strain HR-UT , was isolated from a water sample of the Han River located in the Republic of Korea. Cells were catalase-positive and oxidase-positive, and non-motile curved rods without flagella. The strain grew at 5-35 °C (optimum 25 °C), pH 6-10 (optimum of 7-8) and 0-3 % (w/v) NaCl (optimum 0 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain HR-UT formed a tight phylogenic lineage with Siphonobacter aquaeclarae DSM 21668T and 'Siphonobacter intestinalis' 63MJ-2...
April 20, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29676721/flavobacterium-alvei-sp-nov-isolated-from-a-freshwater-river
#13
Yunho Lee, Che Ok Jeon
A yellow-pigmented, Gram-stain-negative, strictly aerobic, catalase-negative and oxidase-positive bacterium, designated strain HR-AYT , was isolated from a water sample of the Han River. Cells were non-motile rods without flagella. Growth was observed at 5-30 °C (optimum, 20 °C), pH 5-9 (optimum, pH 7) and 0 % NaCl. The major respiratory quinone was menaquinone-6. Strain HR-AYT did not produce flexirubin-type pigments. The major fatty acids were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), anteiso-C15 : 0, iso-C15 : 0 and C16 : 0...
April 20, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29676719/vibrio-gangliei-sp-nov-a-novel-member-of-vibrionaceae-isolated-from-sawdust-in-a-pigpen
#14
Yu-Chen Meng, Hong-Can Liu, Yu-Guang Zhou, Man Cai, Yingqian Kang
A Gram-stain-negative, rod-shaped, catalase- and oxidase-positive, facultatively anaerobic, and motile bacterium, designated strain SZDIS-1T , was isolated from pigpen sawdust bedding in Xiamen, Fujian Province, China. Cells grew at 10-50 °C, pH 6.0-9.0, up to 12 % (w/v) NaCl, resisted vibriostatic agent O/129 and were negative for gelatin and alginate hydrolysis. No growth on thiosulfate citrate bile salts sucrose agar medium. Based on 16S rRNA gene sequences and multilocus sequence analysis, this strain should be assigned to the genus Vibrio, with the closest relatives being Vibrio aphrogenes CA-1004T (97...
April 20, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29676718/propionicimonas-ferrireducens-sp-nov-isolated-from-dissimilatory-iron-iii-reducing-microbial-enrichment-obtained-from-paddy-soil
#15
Guo-Wei Zhou, Xiao-Ru Yang, Mohammed A M Wadaan, Wael N Hozzein, Bang-Xiao Zheng, Jian-Qiang Su, Yong-Guan Zhu
A novel strain, designated Y1A-10 4-9-1T , with Gram-stain-positive and rod-shaped cells, was isolated from paddy soil in Yingtan, Jiangxi, China. Cells were 0.15-0.2 µm wide and 1.5-3.3 µm long. The optimal growth temperature was 30 °C and the optimal pH was 7.0. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the novel strain is closely related to Propionicimonas paludicola JCM 11933T (98.57 %). The genomic DNA G+C content was 63.9 mol%. The predominant menaquinone was MK-9(H4) and meso-diaminopimelic acid was present in the cell-wall peptidoglycan layer...
April 20, 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29676589/association-of-diabetes-diagnosis-with-dietary-changes-and-weight-reduction
#16
Daeho Kim, Kanghyock Koh, Shailender Swaminathan, Amal N Trivedi
BACKGROUND: Lifestyle modifications are associated with better outcomes for patients with diabetes. Patients' awareness of having diabetes may promote lifestyle changes, but there is limited evidence to support this assertion. This study examined whether a report of physician-diagnosed diabetes is associated with dietary changes and efforts to lose weight. METHODS: Cross-sectional comparison of individuals with and without diabetes or prediabetes diagnosis, matched on glycosylated hemoglobin (HbA1c) level, socio-demographic characteristics, and health status using propensity-score matching analysis...
April 20, 2018: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/29676281/risk-thresholds-for-alcohol-consumption-combined-analysis-of-individual-participant-data-for-599-912-current-drinkers-in-83-prospective-studies
#17
Angela M Wood, Stephen Kaptoge, Adam S Butterworth, Peter Willeit, Samantha Warnakula, Thomas Bolton, Ellie Paige, Dirk S Paul, Michael Sweeting, Stephen Burgess, Steven Bell, William Astle, David Stevens, Albert Koulman, Randi M Selmer, W M Monique Verschuren, Shinichi Sato, Inger Njølstad, Mark Woodward, Veikko Salomaa, Børge G Nordestgaard, Bu B Yeap, Astrid Fletcher, Olle Melander, Lewis H Kuller, Beverley Balkau, Michael Marmot, Wolfgang Koenig, Edoardo Casiglia, Cyrus Cooper, Volker Arndt, Oscar H Franco, Patrik Wennberg, John Gallacher, Agustín Gómez de la Cámara, Henry Völzke, Christina C Dahm, Caroline E Dale, Manuela M Bergmann, Carlos J Crespo, Yvonne T van der Schouw, Rudolf Kaaks, Leon A Simons, Pagona Lagiou, Josje D Schoufour, Jolanda M A Boer, Timothy J Key, Beatriz Rodriguez, Conchi Moreno-Iribas, Karina W Davidson, James O Taylor, Carlotta Sacerdote, Robert B Wallace, J Ramon Quiros, Rosario Tumino, Dan G Blazer, Allan Linneberg, Makoto Daimon, Salvatore Panico, Barbara Howard, Guri Skeie, Timo Strandberg, Elisabete Weiderpass, Paul J Nietert, Bruce M Psaty, Daan Kromhout, Elena Salamanca-Fernandez, Stefan Kiechl, Harlan M Krumholz, Sara Grioni, Domenico Palli, José M Huerta, Jackie Price, Johan Sundström, Larraitz Arriola, Hisatomi Arima, Ruth C Travis, Demosthenes B Panagiotakos, Anna Karakatsani, Antonia Trichopoulou, Tilman Kühn, Diederick E Grobbee, Elizabeth Barrett-Connor, Natasja van Schoor, Heiner Boeing, Kim Overvad, Jussi Kauhanen, Nick Wareham, Claudia Langenberg, Nita Forouhi, Maria Wennberg, Jean-Pierre Després, Mary Cushman, Jackie A Cooper, Carlos J Rodriguez, Masaru Sakurai, Jonathan E Shaw, Matthew Knuiman, Trudy Voortman, Christa Meisinger, Anne Tjønneland, Hermann Brenner, Luigi Palmieri, Jean Dallongeville, Eric J Brunner, Gerd Assmann, Maurizio Trevisan, Richard F Gillum, Ian Ford, Naveed Sattar, Mariana Lazo, Simon G Thompson, Pietro Ferrari, David A Leon, George Davey Smith, Richard Peto, Rod Jackson, Emily Banks, Emanuele Di Angelantonio, John Danesh
BACKGROUND: Low-risk limits recommended for alcohol consumption vary substantially across different national guidelines. To define thresholds associated with lowest risk for all-cause mortality and cardiovascular disease, we studied individual-participant data from 599 912 current drinkers without previous cardiovascular disease. METHODS: We did a combined analysis of individual-participant data from three large-scale data sources in 19 high-income countries (the Emerging Risk Factors Collaboration, EPIC-CVD, and the UK Biobank)...
April 14, 2018: Lancet
https://www.readbyqxmd.com/read/29676246/enzymes-involved-in-posttranscriptional-rna-metabolism-in-gram-negative-bacteria
#18
Bijoy K Mohanty, Sidney R Kushner
Gene expression in Gram-negative bacteria is regulated at many levels, including transcription initiation, RNA processing, RNA/RNA interactions, mRNA decay, and translational controls involving enzymes that alter translational efficiency. In this review, we discuss the various enzymes that control transcription, translation, and RNA stability through RNA processing and degradation. RNA processing is essential to generate functional RNAs, while degradation helps control the steady-state level of each individual transcript...
April 2018: Microbiology Spectrum
https://www.readbyqxmd.com/read/29675845/genome-sequence-and-description-of-gracilibacillus-timonensis-sp-nov-strain-marseille-p2481-t-a-moderate-halophilic-bacterium-isolated-from-the-human-gut-microflora
#19
Awa Diop, El Hadji Seck, Gregory Dubourg, Nicholas Armstrong, Caroline Blanc-Tailleur, Didier Raoult, Pierre-Edouard Fournier
Microbial culturomics represents an ongoing revolution in the characterization of the human gut microbiota. By using three culture media containing high salt concentrations (10, 15, and 20% [w/v] NaCl), we attempted an exhaustive exploration of the halophilic microbial diversity of the human gut and isolated strain Marseille-P2481 (= CSUR P2481 =  DSM 103076), a new moderately halophilic bacterium. This bacterium is a Gram-positive, strictly aerobic, spore-forming rod that is motile by use of a flagellum and exhibits catalase, but not oxidase activity...
April 19, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29675216/total-chemical-synthesis-of-glycocin-f-and-analogues-s-glycosylation-confers-improved-antimicrobial-activity
#20
Zaid Amso, Sean W Bisset, Sung-Hyun Yang, Paul W R Harris, Tom H Wright, Claudio D Navo, Mark L Patchett, Gillian E Norris, Margaret A Brimble
Glycocin F (GccF) is a unique diglycosylated bacteriocin peptide that possesses potent and reversible bacteriostatic activity against a range of Gram-positive bacteria. GccF is a rare example of a 'glycoactive' bacteriocin, with both the O -linked N -acetylglucosamine (GlcNAc) and the unusual S -linked GlcNAc moiety important for antibacterial activity. In this report, glycocin F was successfully prepared using a native chemical ligation strategy and folded into its native structure. The chemically synthesised glycocin appeared to be slightly more active than the recombinant material produced from Lactobacillus plantarum ...
February 14, 2018: Chemical Science
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