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https://www.readbyqxmd.com/read/28214446/development-of-algae-bacteria-granular-consortia-in-photo-sequencing-batch-reactor
#1
Lin Liu, Hongyong Fan, Yuhong Liu, Chaoxiang Liu, Xu Huang
The development and properties of algae-bacteria granular consortia, which cultivated with the algae (Chlorella and Scenedesmus) and aerobic granules, was investigated in this experiment. The results indicated that the granular consortia could be successfully developed by selection pressure control, and the algal biomass and extracellular polymeric substances (EPS) concentration in the consortia showed notable correlation with the operating parameters of reactor. The maximum specific removal rates of total nitrogen and phosphate were obtained from the granular consortia with the highest algal biomass, yet the correlation between the fatty acid methyl esters yield and the algal biomass in the consortia was not markedly observed...
February 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214445/immobilization-of-aspergillus-oryzae-%C3%AE-galactosidase-in-an-agarose-matrix-functionalized-by-four-different-methods-and-application-to-the-synthesis-of-lactulose
#2
Cecilia Guerrero, Carlos Vera, Nestor Serna, Andrés Illanes
Aspergillus oryzae β-galactosidase was immobilized in monofunctional glyoxyl-agarose and heterofunctional supports (amino-glyoxyl, carboxy-glyoxyl and chelate-glyoxyl agarose), for obtaining highly active and stable catalysts for lactulose synthesis. Specific activities of the amino-glyoxyl agarose, carboxy-glyoxyl agarose and chelate-glyoxyl agarose derivatives were 3676, 430 and 454IU/g biocatalyst with half-life values at 50°C of 247, 100 and 100h respectively. Specific activities of 3490, 2559 and 1060IU/g were obtained for fine, standard and macro agarose respectively...
February 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214439/different-cultivation-methods-to-acclimatise-ammonia-tolerant-methanogenic-consortia
#3
Hailin Tian, Ioannis A Fotidis, Enrico Mancini, Irini Angelidaki
Bioaugmentation with ammonia tolerant-methanogenic consortia was proposed as a solution to overcome ammonia inhibition during anaerobic digestion process recently. However, appropriate technology to generate ammonia tolerant methanogenic consortia is still lacking. In this study, three basic reactors (i.e. batch, fed-batch and continuous stirred-tank reactors (CSTR)) operated at mesophilic (37°C) and thermophilic (55°C) conditions were assessed, based on methane production efficiency, incubation time, TAN/FAN (total ammonium nitrogen/free ammonia nitrogen) levels and maximum methanogenic activity...
February 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214429/interplay-between-autophagy-and-apoptosis-in-selenium-deficient-cardiomyocytes-in-chicken
#4
Jie Yang, Yuan Zhang, Sattar Hamid, Jingzeng Cai, Qi Liu, Hao Li, Rihong Zhao, Hong Wang, Shiwen Xu, Ziwei Zhang
Dietary selenium (Se) deficiency can cause heart dysfunction, however the exact mechanism remains unclear. To understand this mechanism, 180day-old chicks, divided into two groups, C (control group) and L (low Se group), were fed with either a Se-sufficient (0.23mg/kg) or Se-deficient (0.033mg/kg) diets for 25days, respectively. Heart tissues and blood samples were collected. In L group, the activities of serum creatine kinase (CK) and creatine kinase-myoglobin (CK-MB) increased and typical ultrastructural apoptotic features were observed...
February 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28214398/effects-of-recirculation-in-a-three-tank-pilot-scale-system-for-pharmaceutical-removal-with-powdered-activated-carbon
#5
Victor Kårelid, Gen Larsson, Berndt Björlenius
The removal of pharmaceutically active compounds by powdered activated carbon (PAC) in municipal wastewater is a promising solution to the problem of polluted recipient waters. Today, an efficient design strategy is however lacking with regard to high-level overall, and specific, substance removal in the large scale. The performance of PAC-based removal of pharmaceuticals was studied in pilot-scale with respect to the critical parameters; contact time and PAC dose using one PAC product selected by screening in bench-scale...
February 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28214381/the-value-of-reflectance-confocal-microscopy-in-diagnosis-of-flat-pigmented-facial-lesions-a-prospective-study
#6
E Wurm, G Pellacani, C Longo, H P Soyer, S Gonzalez, R Hofmann-Wellenhof, V Ahlgrimm-Siess, P Guitera, C Sinz, H Kittler
BACKGROUND: Flat pigmented facial lesions are difficult to diagnose even with dermatoscopy. It is controversial how additional information obtained by in vivo reflectance confocal microscopy (RCM) impacts the diagnosis and management. OBJECTIVE: To examine what in vivo reflectance confocal microscopy of flat pigmented facial lesions adds to clinical examination using dermatoscopy including digital dermatoscopic monitoring. METHODS: We prospectively collected 70 cases of flat pigmented facial lesions and recorded diagnoses and management decisions by experts based on direct clinical examination aided by dermatoscopy including digital dermatoscopic monitoring and by remote experts who reviewed the corresponding confocal images...
February 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28214380/application-of-the-mechpeff-model-to-predict-passive-effective-intestinal-permeability-in-the-different-regions-of-the-rodent-small-intestine-and-colon
#7
D Pade, M Jamei, A Rostami-Hodjegan, D B Turner
A major component of Physiologically-Based Pharmacokinetic (PBPK) models is prediction of the rate and extent of absorption of orally dosed drugs for which knowledge of effective passive intestinal permeability (Peff ) is essential. Single pass intestinal perfusion (SPIP) studies are used to establish effective permeability in vivo but are difficult to perform in rodents while mechanistic models to predict drug Peff in rat and mouse have not been published. This work evaluates the predictive performance of the 'MechPeff' model to predict Peff in the rodent intestine based upon knowledge of regional gut physiology and drug-specific physicochemical parameters...
February 18, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/28214378/calcium-signaling-through-l-type-calcium-channels-role-in-pathophysiology-of-spinal-nociceptive-transmission
#8
REVIEW
Olivier Roca-Lapirot, Houda Radwani, Franck Aby, Frédéric Nagy, Marc Landry Pascal Fossat
L-type voltage-gated calcium channels (VGCCs) are ubiquitous channels in the central nervous system. L-type calcium channels (LTCs) are mostly post-synaptic channels regulating neuronal firing and gene expression. They play a role in important physio-pathological processes such as learning and memory, Parkinson's disease, autism and, as recognized more recently, in the pathophysiology of pain processes. Classically, the fundamental role of these channels in cardiovascular functions has limited the use of classical molecules to treat LTC-dependent disorders...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28214377/reciprocal-translocation-of-small-numbers-of-inbred-individuals-rescues-immunogenetic-diversity
#9
Catherine E Grueber, Jolene T Sutton, Sol Heber, James V Briskie, Ian G Jamieson, Bruce C Robertson
Genetic rescue can reduce inbreeding depression and increase fitness of small populations, even when the donor populations are highly inbred. In a recent experiment involving two inbred island populations of the South Island robin, Petroica australis, reciprocal translocations improved microsatellite diversity and individual fitness. While microsatellite loci may reflect patterns of genome-wide diversity, they generally do not indicate the specific genetic regions responsible for increased fitness. We tested the effectiveness of this reciprocal translocation for rescuing diversity of two immunogenetic regions: toll-like receptor (TLR) and major histocompatibility complex (MHC) genes...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28214373/improved-detection-of-zika-virus-rna-in-human-and-animal-specimens-by-a-novel-highly-sensitive-and-specific-real-time-rt-pcr-assay-targeting-the-5-untranslated-region-of-zika-virus
#10
Jasper Fuk-Woo Chan, Cyril Chik-Yan Yip, Kah-Meng Tee, Zheng Zhu, Jessica Oi-Ling Tsang, Kenn Ka-Heng Chik, Terance Gi-Wai Tsang, Chris Chung-Sing Chan, Vincent Kwok-Man Poon, Siddharth Sridhar, Feifei Yin, Ivan Fan-Ngai Hung, Sandy Ka-Yee Chau, Anna Jinxia Zhang, Kwok-Hung Chan, Kwok-Yung Yuen
OBJECTIVE AND METHOD: We developed and evaluated five novel real-time RT-PCR assays targeting conserved regions in the 5'-untranslated region (5'-UTR), envelope (E'), non-structural protein 2A (NS2A), NS5, and 3'-UTR of the ZIKV genome. RESULTS: The ZIKV-5'-UTR assay exhibited the lowest in-vitro limit of detection (5-10 RNA copies/reaction and 3.0×10(-1) plaque-forming units/ml). Compared to the modified version of a widely adopted RT-PCR assay targeting the ZIKV-E gene, the ZIKV-5'-UTR assay showed better sensitivity in human clinical specimens, and representative mouse specimens, including many organs which are known to be involved in human ZIKV infection but difficult to obtain in clinical settings...
February 18, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28214369/diagnostic-accuracy-of-history-physical-exam-laboratory-tests-and-point-of-care-ultrasound-for-pediatric-acute-appendicitis-in-the-emergency-department-a-systematic-review-and-meta-analysis
#11
Roshanak Benabbas, Mark Hanna, Jay Shah, Richard Sinert
BACKGROUND: Acute appendicitis (AA) is the most common surgical emergency in children. Accurate and timely diagnosis is crucial but challenging due to atypical presentations and the inherent difficulty of obtaining a reliable history and physical examination in younger children. OBJECTIVES: To determine the utility of history, physical exam, laboratory tests, Pediatric Appendicitis Score (PAS) and Emergency Department-Point-of-Care Ultrasound (ED-POCUS) in the diagnosis of AA in ED pediatric patients...
February 18, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28214361/identification-of-arabidopsis-genic-and-non-genic-promoters-by-paired-end-sequencing-of-tss-tags
#12
Mutsutomo Tokizawa, Kazutaka Kusunoki, Hiroyuki Koyama, Atsushi Kurotani, Tetsuya Sakurai, Yutaka Suzuki, Tomoaki Sakamoto, Tetsuya Kurata, Yoshiharu Y Yamamoto
Information about transcription start sites (TSSs) provides foundational data for analyses of promoter architecture. In this report, we used paired- and single-end deep sequencing to analyze Arabidopsis TSS tags from several libraries prepared from roots, shoots, flowers, and etiolated seedlings. The clustering of approximately 33 million mapped TSS tags led to the identification of 324,461 promoters that covered 79.7% (21,672/27,206) of protein-coding genes in the Arabidopsis genome. In addition, we identified intragenic, antisense, and Orphan promoters that were not associated with any gene models...
February 18, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28214359/gene-expression-plasticity-in-response-to-salinity-acclimation-in-threespine-stickleback-ecotypes-from-different-salinity-habitats
#13
Taylor C Gibbons, David C H Metzger, Timothy M Healy, Patricia M Schulte
Phenotypic plasticity is thought to facilitate the colonization of novel environments and shape the direction of evolution in colonizing populations. However, the relative prevalence of various predicted patterns of changes in phenotypic plasticity following colonization remain unclear. Here we use a whole-transcriptome approach to characterize patterns of gene expression plasticity in the gills of a freshwater-adapted and a saltwater-adapted ecotype of threespine stickleback (Gasterosteus aculeatus) exposed to a range of salinities...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28214357/nesting-habits-influence-population-genetic-structure-of-a-bee-living-in-anthropogenic-disturbance
#14
J L Vickruck, M H Richards
While most organisms are negatively affected by anthropogenic disturbance, a few species thrive in landscapes altered by humans. Typically, native bees are negatively impacted by anthropogenic environmental change, including habitat alteration and climate change. Here we investigate the population structure of the eastern carpenter bee Xylocopa virginica, a generalist pollinator with a broad geographic range spanning eastern North America. Eastern carpenter bees now nest almost exclusively in human made wooden structures, linking their geographic distribution and population structure to human activities and disturbance...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28214334/autophagy-impairment-by-helicobacter-pylori-induced-methylation-silencing-of-map1lc3av1-promotes-gastric-carcinogenesis
#15
Jibran Sualeh Muhammad, Sohachi Nanjo, Takayuki Ando, Satoshi Yamashita, Takao Maekita, Toshikazu Ushijima, Yoshiaki Tabuchi, Toshiro Sugiyama
Helicobacter pylori (H. pylori) infection induces methylation silencing of tumor suppressor genes causing gastric carcinogenesis. Impairment of autophagy induces DNA damage leading to genetic instability and carcinogenesis. We aimed to identify whether H. pylori infection induced methylation silencing of host autophagy-related (Atg) genes, impairing autophagy and enhancing gastric carcinogenesis. Gastric mucosae were obtained from 41 gastric cancer patients and 11 healthy volunteers (8 H. pylori-uninfected and 3 H...
February 18, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28214297/advancing-neuromuscular-ultrasound-through-research-finding-common-sound
#16
Lisa Hobson-Webb, Michael S Cartwright
INTRODUCTION: Neuromuscular ultrasound (NMUS) is an accepted, but underutilized, diagnostic tool in the evaluation of neuromuscular disorders. The lack of uniform high-quality standards in published research and in clinical practice has been a limitation to its growth. METHODS: This article aims to address the shortcomings of NMUS research and establish basic standards to guide further work in the field. RESULTS: A review of the basic types of NMUS research papers is presented, along with the elements that each should include...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214283/prognostic-role-of-n-cadherin-expression-in-patients-with-non-muscle-invasive-bladder-cancer
#17
Mohammad Abufaraj, Shahrokh F Shariat, Andrea Haitel, Marco Moschini, Beat Foerster, Piotr Chłosta, Kilian Gust, Marek Babjuk, Alberto Briganti, Pierre I Karakiewicz, Walter Albrecht
PURPOSE: To assess the role of N-cadherin as a prognostic biomarker in patients with non-muscle-invasive bladder cancer (NMIBC) treated with transurethral resection with or without adjuvant intravesical therapy. PATIENTS AND METHODS: Immunohistochemistry using monoclonal mouse antibody was used to evaluate the expression status of N-cadherin in 827 patients with NMIBC. N-cadherin was considered positive if any immunoreactivity with membranous staining was detected...
February 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28214280/current-guidelines-do-not-sufficiently-discriminate-venous-thromboembolism-risk-in-urology
#18
Kristen McAlpine, Rodney H Breau, Ranjeeta Mallick, Sonya Cnossen, Ilias Cagiannos, Christopher Morash, Marc Carrier, Luke T Lavallée
PURPOSE: Venous thromboembolism (VTE) is the leading cause of noncancer death following major cancer surgery. Current thromboprophylaxis guidelines do not address procedure-specific risk of venous thromboembolism for urological patients. This project was created to determine the risk and timing of VTE after major urological surgery and to evaluate if surgical procedure was an independent risk factor for VTE after adjusting for previously established risk factors. MATERIAL AND METHODS: The American College of Surgeons׳ National Surgical Quality Improvement Program was used to create a cohort of patients who received major abdominal or pelvic urologic surgery between 2006 and 2014...
February 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28214269/immunohistochemistry-on-a-panel-of-emery-dreifuss-muscular-dystrophy-samples-reveals-nuclear-envelope-proteins-as-inconsistent-markers-for-pathology
#19
Phu Le Thanh, Peter Meinke, Nadia Korfali, Vlastimil Srsen, Michael I Robson, Manfred Wehnert, Benedikt Schoser, Caroline A Sewry, Eric C Schirmer
Reports of aberrant distribution for some nuclear envelope proteins in cells expressing a few Emery-Dreifuss muscular dystrophy mutations raised the possibility that such protein redistribution could underlie pathology and/or be diagnostic. However, this disorder is linked to 8 different genes encoding nuclear envelope proteins, raising the question of whether a particular protein is most relevant. Therefore, myoblast/fibroblast cultures from biopsy and tissue sections from a panel of nine Emery-Dreifuss muscular dystrophy patients (4 male, 5 female) including those carrying emerin and FHL1 (X-linked) and several lamin A (autosomal dominant) mutations were stained for the proteins linked to the disorder...
December 21, 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28214264/identification-of-candidate-cerebrospinal-fluid-biomarkers-in-parkinsonism-using-quantitative-proteomics
#20
N K Magdalinou, A J Noyce, R Pinto, E Lindstrom, J Holmén-Larsson, M Holtta, K Blennow, H R Morris, T Skillbäck, T T Warner, A J Lees, I Pike, M Ward, H Zetterberg, J Gobom
INTRODUCTION: Neurodegenerative parkinsonian syndromes have significant clinical and pathological overlap, making early diagnosis difficult. Cerebrospinal fluid (CSF) biomarkers may aid the differentiation of these disorders, but other than α-synuclein and neurofilament light chain protein, which have limited diagnostic power, specific protein biomarkers remain elusive. OBJECTIVES: To study disease mechanisms and identify possible CSF diagnostic biomarkers through discovery proteomics, which discriminate parkinsonian syndromes from healthy controls...
January 31, 2017: Parkinsonism & related Disorders
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