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https://www.readbyqxmd.com/read/29793118/efficient-resource-recycling-from-liquid-digestate-by-microalgae-yeast-mixed-culture-and-the-assessment-of-key-gene-transcription-related-to-nitrogen-assimilation-in-microalgae
#1
Lei Qin, Lu Liu, Zhongming Wang, Weining Chen, Dong Wei
To determine the feasibility of microalgae-yeast mixed culture using the liquid digestate of dairy wastewater (LDDW) for biofuels and single cell protein (SCP) production, the cell growth, nutrient removal and outputs evaluation of the mono and mixed culture of Chlorella vulgaris and Yarrowia lipolytica in LDDW were investigated by adding glycerol as carbon source. The results showed that the mixed culture could enhance the biological utilization efficiency of nitrogen and phosphorus, and obtain higher yield of biomass (1...
May 18, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29793105/copd-rat-model-is-more-susceptible-to-cold-stress-and-pm-2-5-exposure-and-the-underlying-mechanism
#2
Kai Zhang, Lei Guo, Qiaozhen Wei, Quanquan Song, Jiangtao Liu, Jingping Niu, Li Zhang, Ye Ruan, Bin Luo
The purpose of this study is to verify the hypothesis that chronic obstructive pulmonary disease (COPD) model rat is more susceptible to cold stress and fine particulate matter (PM2.5 ) exposure than the healthy rat, and explore the related mechanism. COPD rat model, established with cigarette smoke and lipopolysaccharide intratracheal instillation, were exposed to cold stress (0 °C) and PM2.5 (0, 3.2, 12.8 mg/ml). After that, the levels of superoxide dismutase, inducible nitric oxide synthase (iNOS), tumor necrosis factor alpha (TNF-α), monocyte chemotactic protein 1 (MCP-1) and angiotensin Ⅱ (Ang-Ⅱ) in lung were measured, as well as the expression levels of lung 8-hydroxy-2-deoxyguanosine (8-OHdG), nuclear factor kappa B (NF-κB), heme-oxygenase-1 (HO-1) and nuclear factor erythroid-2-related factor 2 (Nrf2)...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793094/effects-of-chronic-antipsychotic-drug-exposure-on-the-expression-of-translocator-protein-and-inflammatory-markers-in-rat-adipose-tissue
#3
Anita Calevro, Marie-Caroline Cotel, Sridhar Natesan, Michel Modo, Anthony C Vernon, Valeria Mondelli
The precise effect of antipsychotic drugs on either central or peripheral inflammation remains unclear. An important issue in this debate is to what extent the known peripheral metabolic effects of antipsychotics, including increased adiposity, may contribute to increased inflammation. Adipose tissue is known to contribute to the development of systemic inflammation, which can eventually lead to insulin resistance and metabolic dysregulation. As a first step to address this question, we evaluated whether chronic exposure to clinically comparable doses of haloperidol or olanzapine resulted in the immune activation of rat adipose tissue...
May 16, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29793076/porcine-circovirus-type-2-inhibits-inter-%C3%AE-expression-by-targeting-karyopherin-alpha-3-in-pk-15-cells
#4
Jiansheng Li, Mingqing Lu, Bei Huang, Yingjun Lv
Interferon (IFN)-mediated antiviral response is an important part of host defense. Previous studies reported that porcine circovirus type 2 (PCV2) inhibits interferon production, but the mechanism is still poorly understood. In this study, PCV2 suppresses IFN-β and IRF3 promoters and mRNA level of IFN-β induced by ISD or Poly(I:C), but has no effect on the activation of AP-1 and NF-κB. Furthermore, PCV2 decreases the mRNA level of IFN-β and IFN-β promoter activity driven by STING, TBK1, IRF3, and IRF3/5D, and causes a reduction in the protein level of nuclear p-IRF3...
May 21, 2018: Virology
https://www.readbyqxmd.com/read/29793031/cloning-overexpression-and-purification-of-a-gene-of-unknown-function-of-prophage-loci-from-candidatus-liberibacter-asiaticus-the-destructive-bacterial-pathogen-of-huanglongbing-disease-in-citrus-plants
#5
Duangtip Sudhan, Thamrongjet Puttamuk, Supachai Vuttipongchaikij, Pitak Chuawong
Citrus Huanglongbing (HLB) or citrus greening is one of the most destructive diseases affecting citrus industry worldwide. The causal agent in Asia is a phloem-limited, Gram-negative bacterium, 'Candidatus Liberibacter asiaticus' (CLas). Within the genome of CLas lies prophage regions, classified as Type-A, B, C, and D. In particular, Type-D has been indicated to correlate with the blotchy-mottle symptoms of citrus trees. Here we reported the cloning, overexpression, and purification of the ORF1, an open reading frame from the partial Type-D region of CLas obtained from an infected lime tree (Citrus aurantifolia Swingle)...
May 21, 2018: Protein Expression and Purification
https://www.readbyqxmd.com/read/29792964/a-family-30-glucurono-xylanase-from-bacillus-subtilis-lc9-expression-characterization-and-its-application-in-chinese-bread-making
#6
Yalan Guo, Zhen Gao, Jiaxing Xu, Siyuan Chang, Bin Wu, Bingfang He
A GH30-8 endoxylanase was identified from an environmental Bacillus subtilis isolate following growth selection on aspen wood glucuronoxylan. The putative endoxylanase was cloned for protein expression and characterization in the Gram-positive protease deficient protein expression host B. subtilis WB800. The extracellular activity obtained was 55 U/mL, which was 14.5-fold higher than that obtained with the native species. The apparent molecular mass of BsXyn30 was estimated as 43 kDa by SDS-PAGE. BsXyn30 showed an optimal activity at pH 7...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792962/effect-of-casein-and-inulin-addition-on-physico-chemical-characteristics-of-low-fat-camel-dairy-cream
#7
Leila Ziaeifar, Mohsen Labbafi Mazrae Shahi, Maryam Salami, Gholam R Askari
The effect of the addition of the camel casein fraction on some physico-chemical properties of low fat camel milk cream was studied. Oil-in-water emulsions, 25, 30, and 35 (w/w) fat, were prepared using inulin, camel skim milk, milk fat and variable percentages of casein (1, 2, and 3% w/w). The droplet size, ζ-potential, surface protein concentration, viscosity and surface tension of low fat dairy creams was measured. Cream containing 2% (w/w) casein had better stability. The modifications in physico-chemical properties appeared to be driven by changes in particle size distribution caused by droplet aggregation...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792948/comparative-transcriptome-analysis-reveals-significant-differences-in-gene-expression-between-appressoria-and-hyphae-in-colletotrichum-gloeosporioides
#8
Meiyu Wang, Zongshan Zhou, Jianyuan Wu, Zhirui Ji, Junxiang Zhang
Fruit rot caused mainly by Colletotrichum gloeosporioides is a major cause of pre- and/or post-harvest diseases, which seriously constrains production, marketing, and export of fruits. To infect the host, this fungus evolves a specialized infection structure called the appressorium. Extensive past studies have characterized many appressorium-related genes in C. gloeosporioides, separately. However, a comprehensive understanding of the genes contributing to appressorium formation is far from complete. Here, global changes in gene expression were analyzed between appressoria and hyphae using RNA-Seq...
May 21, 2018: Gene
https://www.readbyqxmd.com/read/29792945/cross-linking-by-epichlorohydrin-and-diepoxybutane-correlates-with-cytotoxicity-and-leads-to-apoptosis-in-human-leukemia-hl-60-cells
#9
Phuong M Le, Vanesa L Silvestri, Samuel C Redstone, Jordanne B Dunn, Julie T Millard
The bifunctional alkylating agents epichlorohydrin (ECH) and diepoxybutane (DEB) have been linked to increased cancer risks in industrial workers. These compounds react with DNA and proteins, leading to genotoxic effects. We used the comet assay to monitor formation of cross-links in HL-60 cells treated with ECH, DEB, and the structurally related anti-cancer drug mechlorethamine (HN2). We report a time- and dose-dependent cytotoxicity that correlated with cross-linking activity, following the order HN2 > DEB > ECH...
May 21, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29792912/heat-shock-protein-b1-is-required-for-the-prolactin-induced-cytoprotective-effects-on-pancreatic-islets
#10
Rosangela Am Wailemann, Letícia F Terra, Talita C de Oliveira, Ancély F Dos Santos, Vinícius M Gomes, Leticia Labriola
The success of islet transplantation has improved lately. Unfortunately, it is still compromised by cell loss. We have shown that prolactin (PRL) inhibits beta-cell apoptosis and up-regulates the antiapoptotic Heat Shock Protein B1 (HSPB1) in human islets. Since its function in pancreatic islets has not been studied, we explored the role of HSPB1 in PRL-induced beta-cell survival. The significant PRL-induced cytoprotection in control cells was abrogated in HSPB1 silenced cells, overexpression of HSPB1 recovered survival...
May 21, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29792883/plasma-n-glycan-signatures-associate-with-features-of-inflammatory-bowel-diseases
#11
Florent Clerc, Mislav Novokmet, Viktoria Dotz, Karli R Reiding, Noortje de Haan, Guinevere S M Kammeijer, Hans Dalebout, Marco R Bladergroen, Frano Vukovic, Erdmann Rapp, Stephan R Targan, Gildardo Barron, Natalia Manetti, Anna Latiano, Dermot P B McGovern, Vito Annese, Gordan Lauc, Manfred Wuhrer
BACKGROUND & AIMS: Biomarkers are needed for early detection of Crohn's disease (CD) and ulcerative colitis (UC) or to predict patient outcomes. Glycosylation is a common and complex post-translational modification of proteins that affects their structure and activity. We compared plasma N-glycosylation profiles between patients with CD or UC and healthy individuals (controls). METHODS: We analyzed the total plasma N-glycomes of 2635 patients with inflammatory bowel diseases and 996 controls by mass spectrometry with a linkage-specific sialic acid derivatization technique...
May 21, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29792724/a-systematic-understanding-of-signaling-by-erbb2-in-cancer-using-phosphoproteomics
#12
C Sidhanth, P Manasa, S Krishnapriya, S Sneha, S Bindhya, R P Nagare, M Garg, T S Ganesan
ErbB2 is an important receptor tyrosine kinase and a member of the ErbB family. Although it does not have a specific ligand, it transmits signals downstream by heterodimerization with other receptors in the family. It plays a major role in a variety of cellular responses like proliferation, differentiation, and adhesion. ErbB2 is amplified at the DNA level in breast cancer (20%-30%) and gastric cancer (10%-20%), and trastuzumab is effective as a therapeutic antibody. This review is a critical analysis of the currently published data on the signaling pathways of ErbB2 and the interacting proteins...
May 24, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29792687/co-mobility-of-gabarap-and-phosphatidylinositol-4-kinase-2a-on-cytoplasmic-vesicles
#13
Yan Chen, Hui-Qiao Sun, John P Eichorst, Joseph P Albanesi, Helen Yin, Joachim D Mueller
We previously reported that recruitment of the Type IIA phosphatidylinositol 4-kinase (PI4K2A) to autophagosomes by GABARAP, a member of the Atg8 family of autophagy-related proteins, is important for autophagosome-lysosome fusion. Because both PI4K2A and GABARAP have also been implicated in the intracellular trafficking of plasma membrane receptors in the secretory/endocytic pathway, we characterized their interaction in cells under non-autophagic conditions. Fluorescence fluctuation spectroscopy measurements revealed that GABARAP exists predominantly as a cytosolic monomer in live cells, but is recruited to small cytoplasmic vesicles upon overexpression of PI4K2A...
May 24, 2018: Biochemistry
https://www.readbyqxmd.com/read/29792674/partial-intrinsic-disorder-governs-the-dengue-capsid-protein-conformational-ensemble
#14
Priscilla L S Boon, Wuan Geok Saw, Xin Xiang Lim, Palur Venkata Raghuvamsi, Roland G Huber, Jan K Marzinek, Daniel A Holdbrook, Ganesh S Anand, Gerhard Grüber, Peter J Bond
The 11 kDa, positively charged dengue capsid protein (C protein) exists stably as a homodimer and co-localizes with the viral genome within mature viral particles. Its core is composed of four alpha helices encompassing a small hydrophobic patch that may interact with lipids, but approximately 20% of the protein at the N-terminus is intrinsically disordered, making it challenging to elucidate its conformational landscape. Here, we combine small-angle X-ray scattering (SAXS), amide hydrogen-deuterium exchange mass spectrometry (HDXMS), and atomic-resolution molecular dynamics (MD) simulations to probe the dynamics of dengue C proteins...
May 24, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29792672/biosynthesis-of-lincosamide-antibiotics-reactions-associated-with-degradation-and-detoxification-pathways-play-a-constructive-role
#15
Daozhong Zhang, Zhijun Tang, Wen Liu
Natural products typically are small molecules produced by living organisms. These products possess a wide variety of biological activities and thus have historically played a critical role in medicinal chemistry and chemical biology either as chemotherapeutic agents or as useful tools. Natural products are not synthesized for use by human beings; rather, living organisms produce them in response to various biochemical processes and environmental concerns, both internal and external. These processes/concerns are often dynamic and thus motivate the diversification, optimization, and selection of small molecules in line with changes in biological function...
May 24, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29792566/clues-to-an-evolutionary-mystery-the-genes-for-t-toxin-enabler-of-the-devastating-1970-southern-corn-leaf-blight-epidemic-are-present-in-ancestral-species-suggesting-an-ancient-origin
#16
Bradford J Condon, Candace E Elliott, Jonathan Gonzalez, Sung-Hwan Yun, Yasunori Akagi, Tyr Wiesner-Hanks, Motoichiro Kodama, Gillian Turgeon
The Southern Corn Leaf Blight epidemic of 1970 devastated fields of T-cytoplasm corn planted in monoculture throughout the eastern US. The epidemic was driven by race T, a previously unseen race of Cochliobolus heterostrophus. A second fungus, Phyllosticta zeae-maydis, with the same biological specificity, appeared coincidentally. Race T produces T-toxin, while P. zeae-maydis produces PM-toxin, both host selective polyketide toxins necessary for supervirulence. Present abundance of genome sequences offers an opportunity to tackle the evolutionary origins of T- and PM- toxin biosynthetic genes, previously thought unique to these species...
May 24, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29792386/disparate-effects-of-shb-gene-deficiency-on-disease-characteristics-in-murine-models-of-myeloid-b-cell-and-t-cell-leukemia
#17
Maria Jamalpour, Xiujuan Li, Karin Gustafsson, Jeffrey W Tyner, Michael Welsh
The Src homology-2 domain protein B is an adaptor protein operating downstream of tyrosine kinases. The Shb gene knockout has been found to accelerate p210 Breakpoint cluster region-cAbl oncogene 1 tyrosine kinase-induced leukemia. In human myeloid leukemia were tumors with high Src homology-2 domain protein B mRNA content, tumors were, however, associated with decreased latency and myeloid leukemia exhibiting immune cell characteristics. Thus, the aim of this study was to investigate the effects of Shb knockout on the development of leukemia in three additional models, that is, colony stimulating factor 3 receptor-T618I-induced neutrophilic leukemia, p190 Breakpoint cluster region-cAbl oncogene 1 tyrosine kinase-induced B-cell leukemia, and G12D-Kras-induced T-cell leukemia/thymic lymphoma...
April 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29792352/probing-the-settlement-signals-of-amphibalanus-amphitrite
#18
Mado Kotsiri, Maria Protopapa, Gesthimani-Myrto Roumelioti, Athena Economou-Amilli, Eleni K Efthimiadou, Skarlatos G Dedos
To achieve their reproductive potential, barnacles combine tactile exploration of surface structural properties and integration of cellular signals originating from their antennular sensory setae within a developmentally defined, temporally narrow window of settlement opportunity. Behavioural assays with cyprids coupled with biometric analysis of scanning electron microscopy-acquired images in the presence of specific chemical compounds were used to investigate how settlement on a substratum is altered in response to the presence of these compounds...
May 24, 2018: Biofouling
https://www.readbyqxmd.com/read/29792298/nanobody-antigen-conjugates-elicit-hpv-specific-anti-tumor-immune-responses
#19
Andrew W Woodham, Ross W Cheloha, Jingjing Ling, Mohammad Rashidian, Stephen C Kolifrath, Maia Mesyngier, Joao N Duarte, Justin M Bader, Joseph G Skeate, Diane M Da Silva, W Martin Kast, Hidde L Ploegh
High-risk human papillomavirus-associated cancers express viral oncoproteins (e.g., E6 and E7) that induce and maintain the malignant phenotype. The viral origin of these proteins makes them attractive targets for development of a therapeutic vaccine. Camelid-derived single-domain antibody fragments (nanobodies or VHHs) that recognize cell surface proteins on antigen-presenting cells (APCs) can serve as targeted delivery vehicles for antigens attached to them. Such VHHs were shown to induce CD4+ and CD8+ T-cell responses against model antigens conjugated to them via sortase, but antitumor responses had not yet been investigated...
May 23, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29792237/according-to-mitochondrial-dna-evidence-parascaris-equorum-and-parascaris-univalens-may-represent-the-same-species
#20
J F Gao, X X Zhang, X X Wang, Q Li, Y Li, W W Xu, Y Gao, C R Wang
Parascarosis is caused mainly by parasitic infections with Parascaris equorum and Parascaris univalens, the most common ascarid nematodes, in the small intestine of equines. Parascarosis often causes severe illness and even death in foals and yearlings. In this study, we obtained the complete sequence of the P. equorum mitochondrial (mt) genome and compared its organization and structure with that of P. equorum Japan isolate (nearly complete), and the complete mtDNA sequences of P. univalens Switzerland and USA isolates...
May 24, 2018: Journal of Helminthology
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