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https://www.readbyqxmd.com/read/28820126/adhaeribacter-terrae-sp-nov-a-novel-bacterium-isolated-from-soil
#1
Nabil Elderiny, Jae-Jin Lee, Yeon-Hee Lee, Su-Jin Park, Seung-Yeol Lee, Sangkyu Park, Young-Je Cho, Leonid N Ten, Hee-Young Jung
Strain HY02T was isolated from a soil sample collected at Namyangju-si, Gyeonggi-do, Republic of Korea. Cells of this strain were observed to be Gram-stain-negative, short and rod-shaped. Colonies were red in colour. A 16S rRNA gene sequence analysis identified this strain as a member of the genus Adhaeribacter in the family Cytophagaceae, with the highest level of 16S rRNA gene sequence similarity to Adhaeribacter terreus DNG6T (98.08 %). This strain was positive for oxidase but negative for catalase activity and acid production from glucose...
August 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28820111/description-of-actinokineospora-acnipugnans-sp-nov-an-actinomycete-isolated-from-soil-showing-potential-uses-in-cosmetics
#2
Ram Hari Dahal, Dong Seop Shim, Jaisoo Kim
During isolation of soil bacteria having antibacterial functions, an aerobic, Gram-stain-positive, oxidase-negative, catalase-positive bacterium, designated strain R434T, was isolated. Strain R434T showed antimicrobial activity against Propionibacterium acnes and Staphylococcus epidermidis and significant enzyme-inhibitory capability. The diagnostic diamino acid of the cell-wall peptidoglycan was meso-diaminopimelic acid, and the whole-cell sugars were galactose, arabinose and glucose. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain R434T formed a lineage within the family Pseudonocardiaceae...
August 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28820094/massilia-solisilvae-sp-nov-massilia-terrae-sp-nov-and-massilia-agilis-sp-nov-isolated-from-forest-soil-in-south-korea-by-using-a-newly-developed-culture-method
#3
Khulan Altankhuu, Jaisoo Kim
Using a newly developed culture method for not yet cultured soil bacteria, three Gram-stain-negative, aerobic, non-spore-forming, motile, and rod-shaped bacteria (strain designated J18T, J11T and J9T) were isolated from forest soil at Kyonggi University, South Korea. Isolates were subjected to a taxonomic study by using a polyphasic approach. According to a phylogenetic tree based on 16S rRNA gene sequences, strains J18T, J11T and J9T belonged to the genus Massilia and clustered with Massilia haematophila CCUG 38318T (similarity range: 97...
August 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28809148/flaviaesturariibacter-terrae-sp-nov-isolated-from-mountain-soil
#4
Joseph Okiria, Jae-Jin Lee, Su-Jin Park, Yeon-Hee Lee, Seung-Yeol Lee, Sangkyu Park, Byung-Oh Kim, Leonid N Ten, Hee-Young Jung
A Gram-stain-negative, aerobic, rod-shaped, non-motile and pale yellow-pigmented bacterial strain, designated as HY03T, was isolated from mountain soil. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain HY03T belonged to the family Chitinophagaceae in the phylum Bacteroidetes and was most closely related to Flaviaesturariibacter amylovorans GCR0105T at a similarity of 95.4 %. The genomic DNA G+C content of strain HY03T was 43.2 mol%. The major fatty acids of the isolate were iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH...
August 15, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28800483/assessment-of-aod-variability-over-saudi-arabia-using-modis-deep-blue-products
#5
Mohsin Jamil Butt, Mazen Ebraheem Assiri, Md Arfan Ali
The aim of this study is to investigate the variability of aerosol over The Kingdom of Saudi Arabia. For this analysis, Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue (DB) Aerosol Optical Depth (AOD) product from Terra and Aqua satellites for the years 2000-2013 is used. The product is validated using AERONET data from ground stations, which are situated at Solar Village Riyadh and King Abdullah University of Science and Technology (KAUST) Jeddah. The results show that both Terra and Aqua satellites exhibit a tendency to show the spatial variation of AOD with Aqua being better than Terra to represent the ground based AOD measurements over the study region...
August 8, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28800171/antioxidant-protection-by-%C3%AE-selenoamines-against-thioacetamide-induced-oxidative-stress-and-hepatotoxicity-in-mice
#6
Sílvio Terra Stefanello, Diane Duarte Hartmann, Guilherme Pires Amaral, Aline Alves Courtes, Martim T B Leite, Thayanara Cruz da Silva, Débora Farina Gonçalves, Micaela B Souza, Pâmela Carvalho da Rosa, Luciano Dornelles, Félix Alexandre Antunes Soares
Thioacetamide (TAA) is a hepatotoxin that rapidly triggers the necrotic process and oxidative stress in the liver. Nevertheless, organic selenium compounds, such as β-selenoamines, can be used as pharmacological agents to diminish the oxidative damage. Thus, the aim of this study was to investigate the protective effect of the antioxidant β-selenoamines on TAA-induced oxidative stress in mice. Here, we observed that a single intraperitoneal injection of TAA (200 mg/kg) dramatically elevated some parameters of oxidative stress, such as lipid peroxidation and reactive oxygen species (ROS) production, as well as depleted cellular antioxidant defenses...
August 11, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28799106/chemical-sterilization-of-allograft-dermal-tissues
#7
Abigail Phipps, Edward Vaynshteyn, John B Kowalski, Manh-Dan Ngo, Karen Merritt, Joel Osborne, Evangelia Chnari
Common terminal sterilization methods are known to alter the natural structure and properties of soft tissues. One approach to providing safe grafts with preserved biological properties is the combination of a validated chemical sterilization process followed by an aseptic packaging process. This combination of processes is an accepted method for production of sterile healthcare products as described in ANSI/AAMI ST67:2011. This article describes the validation of the peracetic acid and ethanol-based (PAAE) chemical sterilization process for allograft dermal tissues at the Musculoskeletal Transplant Foundation (MTF, Edison, NJ)...
August 10, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28797997/hepatocellular-carcinoma-peritoneal-metastasis-role-of-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-hipec
#8
John Spiliotis, Georgios Nikolaou, Nikolaos Kopanakis, Dimitra Vassiliadou, Alexios Terra, Elias Efstathiou
INTRODUCTION: Peritoneal dissemination of hepatocellular carcinoma (HCC) is a rare presentation with an incidence of 2-6%. The most common cause of peritoneal deposits is a ruptured HCC that results in tumor spillage into the peritoneal cavity. The overall incidence of spontaneous ruptures of HCC ranges from 5 to 15% and carries a high mortality rate of up to 50%. Other factors influencing peritoneal dissemination are the lymph node metastasis and the direct diaphragmatic invasion and there is no significant association with past history of FNAB, or percutaneous RFA or ethanol injection and lung or adrenal metastasis...
May 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28796829/new-data-on-weddell-seal-leptonychotes-weddellii-colonies-a-genetic-analysis-of-a-top-predator-from-the-ross-sea-antarctica
#9
Ighor Antunes Zappes, Anna Fabiani, Valerio Sbordoni, Arnold Rakaj, Roberto Palozzi, Giuliana Allegrucci
In this paper, we studied the genetic variability in Weddell seal from colonies in Terra Nova Bay and Wood Bay, both sites located in the Ross Sea area, Antarctica. Two mitochondrial genes and one nuclear gene, with different mutation rates, were sequenced to investigate the haplotype diversity of the colonies and to test for a possible recent expansion. Fifteen microsatellites were used to analyze their genetic structure. Sequenced genes and microsatellites were also used to estimate the effective population size of the studied colonies and the Ross Sea seal population...
2017: PloS One
https://www.readbyqxmd.com/read/28792463/the-telomeric-response-to-viral-infection
#10
REVIEW
Zhuo Wang, Zhong Deng, Steve Tutton, Paul M Lieberman
The ends of linear genomes, whether viral or cellular, can elicit potent DNA damage and innate immune signals. DNA viruses entering the nucleus share many features with telomeres in their ability to either suppress or co-opt these pathways. Here, we review some of the common mechanisms that viruses and telomeres use to manage the DNA damage and innate immune response pathways. We highlight recent studies on the role of the telomere repeat-containing RNA (TERRA) in response to viral infection. We discuss how TERRA can be activated through a p53-response element embedded in a retrotransposon-like repeat found in human subtelomeres...
August 9, 2017: Viruses
https://www.readbyqxmd.com/read/28777329/cross-calibration-between-aster-and-modis-visible-to-near-infrared-bands-for-improvement-of-aster-radiometric-calibration
#11
Kenta Obata, Satoshi Tsuchida, Hirokazu Yamamoto, Kurtis Thome
Radiometric cross-calibration between the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Terra-Moderate Resolution Imaging Spectroradiometer (MODIS) has been partially used to derive the ASTER radiometric calibration coefficient (RCC) curve as a function of date on visible to near-infrared bands. However, cross-calibration is not sufficiently accurate, since the effects of the differences in the sensor's spectral and spatial responses are not fully mitigated. The present study attempts to evaluate radiometric consistency across two sensors using an improved cross-calibration algorithm to address the spectral and spatial effects and derive cross-calibration-based RCCs, which increases the ASTER calibration accuracy...
August 4, 2017: Sensors
https://www.readbyqxmd.com/read/28774446/computed-tomography-and-mr-imaging-in-crystalline-induced-arthropathies
#12
REVIEW
Constantinus Franciscus Buckens, Maaike P Terra, Mario Maas
Crystalline-induced arthropathies impose substantial morbidity but can be challenging to diagnose, especially in early phases. The most common crystalline arthropathies are gout (monosodium urate deposition), calcium pyrophosphate dihydrate deposition, and hydroxyapatite deposition disease. Computed tomography (CT) and MR imaging provide 3-dimensional information on osseous structures, periarticular soft tissue, and tophi with superior spatial resolution. Dual-source CT (dual-energy CT [DECT]) offers the further advantage of selectively identifying crystalline deposits...
September 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28771081/effect-of-exercise-on-inflammatory-profile-of-older-persons-systematic-review-and-meta-analyses
#13
Renato Sobral Monteiro Junior, Paulo de Tarso Maciel-Pinheiro, Eduardo da Matta M Portugal, Luiz Felipe da Silva Figueiredo, Rodrigo Terra, Lara S F Carneiro, Vinicius Dias Rodrigues, Osvaldo José Moreira Nascimento, Andrea Camaz Deslandes, Jerson Laks
BACKGROUND: Inflammatory cytokines and acute phase proteins increase with ageing, promoting a chronic low-grade inflammation. Studies have shown a positive effect of exercise on inflammatory markers in older persons. Interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and C-reactive protein (CRP) are the main biomarkers investigated. However, it is unclear if exercise could decrease all these biomarkers. PURPOSE: The aim was to analyze the effect of chronic exercise on IL-6, TNF-α and CRP levels in older persons...
August 3, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28771029/methane-seepage-on-mars-where-to-look-and-why
#14
Dorothy Z Oehler, Giuseppe Etiope
Methane on Mars is a topic of special interest because of its potential association with microbial life. The variable detections of methane by the Curiosity rover, orbiters, and terrestrial telescopes, coupled with methane's short lifetime in the martian atmosphere, may imply an active gas source in the planet's subsurface, with migration and surface emission processes similar to those known on Earth as "gas seepage." Here, we review the variety of subsurface processes that could result in methane seepage on Mars...
August 3, 2017: Astrobiology
https://www.readbyqxmd.com/read/28767983/evidence-for-regulated-expression-of-telomeric-repeat-containing-rnas-terra-in-parasitic-trypanosomatids
#15
Jeziel D Damasceno, Gabriel LA Silva, Christian Tschudi, Luiz Ro Tosi
The Telomeric Repeat-containing RNAs (TERRA) participate in the homeostasis of telomeres in higher eukaryotes. Here, we investigated the expression of TERRA in Leishmania spp. and Trypanosoma brucei and found evidences for its expression as a specific RNA class. The trypanosomatid TERRA are heterogeneous in size and partially polyadenylated. The levels of TERRA transcripts appear to be modulated through the life cycle in both trypanosomatids investigated, suggesting that TERRA play a stage-specific role in the life cycle of these early-branching eukaryotes...
August 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28765174/role-of-telomeric-repeat-containing-rna-in-telomeric-chromatin-remodeling-during-the-early-expansion-of-human-embryonic-stem-cells
#16
Sicong Zeng, Lvjun Liu, Yi Sun, Guangxiu Lu, Ge Lin
This study aimed to explore the role of telomeric repeat-containing RNA (TERRA) in telomeric chromatin remodeling during the early expansion of human embryonic stem cells (hESCs). During the derivation of hESCs, histone demethylation in the telomeric region facilitates telomerase-mediated telomere elongation. An adequate telomere repeat is essential for hESCs to acquire and/or maintain the unlimited symmetric division, which suggests that there is a link between pluripotency and telomere maintenance. The present study found that the gradual decrease in TERRA levels and related TERRA foci were correlated with telomeric length elongation in the early expansion of hESCs...
August 1, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28764133/distribution-of-cd-pb-and-cu-between-dissolved-fraction-inorganic-particulate-and-phytoplankton-in-seawater-of-terra-nova-bay-ross-sea-antarctica-during-austral-summer-2011-12
#17
S Illuminati, A Annibaldi, T Romagnoli, G Libani, M Antonucci, G Scarponi, C Totti, C Truzzi
During the austral summer 2011-2012, the metal quotas of Cd, Pb and Cu in the phytoplankton of Terra Nova Bay (TNB, Antarctica) were measured for the first time. Evolution of all the three metal distributions between dissolved and particulate fractions during the season was also evaluated. Metal concentrations were mainly affected by the dynamic of the pack ice melting and phytoplankton activity. In mid-December when TNB area was covered by a thick pack ice layer and phytoplankton activity was very low, all the three metals were present mainly in their dissolved species...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28757273/immunomodulatory-effect-of-photodynamic-therapy-in-galleria-mellonella-infected-with-porphyromonas-gingivalis
#18
Jéssica Diane Dos Santos, Janaína Araújo de Alvarenga, Rodnei Dennis Rossoni, Maíra Terra García, Renata Mendonça Moraes, Ana Lia Anbinder, Antonio Olavo Cardoso Jorge, Juliana Campos Junqueira
Porphyromonas gingivalis is an important pathogen in the development of periodontal disease. Our study investigated if the treatment with antimicrobial photodynamic therapy (aPDT) that employs a nontoxic dye, followed by irradiation with harmless visible light can attenuate the experimental infection of P. gingivalis in Galleria mellonella. Firstly, different concentrations of P. gingivalis ranging from 10(2) to 10(6) cells/larva were injected into the animal to obtain a lethal concentration. Next, the following groups of G...
July 28, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28755323/detection-of-the-alternative-lengthening-of-telomeres-pathway-in-malignant-gliomas-for-improved-molecular-diagnosis
#19
Anne Fogli, Marie-Véronique Demattei, Laetitia Corset, Catherine Vaurs-Barrière, Emmanuel Chautard, Julian Biau, Jean-Louis Kémény, Catherine Godfraind, Bruno Pereira, Toufik Khalil, Nathalie Grandin, Philippe Arnaud, Michel Charbonneau, Pierre Verrelle
Human malignant gliomas exhibit acquisition of either one of two telomere maintenance mechanisms, resulting from either reactivation of telomerase expression or activation of an alternative lengthening of telomeres (ALT) mechanism. In the present study, we analyzed 63 human malignant gliomas for the presence of ALT-specific extrachromosomal circles of telomeric DNA (C-circles) and measured telomerase expression, telomeric DNA content (Telo/Alu method), and telomeric repeat-containing RNAs (TERRA) levels. We also assessed histomolecular markers routinely used in clinical practice...
July 28, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28746531/effective-tobacco-control-measures-agreement-among-medical-students
#20
Stella Regina Martins, Renato Batista Paceli, Marco Antônio Bussacos, Frederico Leon Arrabal Fernandes, Gustavo Faibischew Prado, Elisa Maria Siqueira Lombardi, Mário Terra-Filho, Ubiratan Paula Santos
Objective: To determine the level of agreement with effective tobacco control measures recommended by the World Health Organization and to assess the attitudes toward, knowledge of, and beliefs regarding smoking among third-year medical students at University of São Paulo School of Medicine, located in the city of São Paulo, Brazil. Methods: Between 2008 and 2012, all third-year medical students were invited to complete a self-administered questionnaire based on the Global Health Professionals Student Survey and its additional modules...
May 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
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