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https://www.readbyqxmd.com/read/28633842/effects-of-multi-frequency-ultrasound-pretreatment-under-low-power-density-on-the-enzymolysis-and-the-structure-characterization-of-defatted-wheat-germ-protein
#1
Xue Yang, Yunliang Li, Suyun Li, Ayobami Olayemi Oladejo, Yucheng Wang, Shanfen Huang, Cunshan Zhou, Yang Wang, Li Mao, Yanyan Zhang, Haile Ma, Xiaofei Ye
The effects of ultrasonic frequency mode, power density, pretreatment time and other parameters under low power density on the degree of hydrolysis (DH) of defatted wheat germ protein (DWGP) and angiotensin-I-converting enzyme (ACE) inhibitory activity of DWGP hydrolysate were studied in this research. Ultraviolet-visible (UV-Vis) spectra, free sulfhydryl (SH), disulfide bond (SS), surface hydrophobicity and hydrophobic protein content of ultrasound-pretreated protein and hydrophobic amino acid (HAA) content of alcalase-hydrolysate of DWGP were measured under optimized ultrasonic condition...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28626561/enantioselective-carbohydrate-recognition-by-synthetic-lectins-in-water
#2
Pablo Ríos, Tiddo J Mooibroek, Tom S Carter, Christopher Williams, Miriam R Wilson, Matthew P Crump, Anthony P Davis
Carbohydrate receptors with a chiral framework have been generated by combining a tetra-aminopyrene and a C3-symmetrical triamine via isophthalamide spacers bearing water-solubilising groups. These "synthetic lectins" are the first to show enantiodiscrimination in aqueous solution, binding N-acetylglucosamine (GlcNAc) with 16 : 1 enantioselectivity. They also show exceptional affinities. GlcNAc is bound with Ka up to 1280 M(-1), more than twice that measured for previous synthetic lectins, and three times the value for wheat germ agglutinin, the lectin traditionally employed to bind GlcNAc in glycobiological research...
May 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28622359/aerobic-exercise-protects-against-pressure-overload-induced-cardiac-dysfunction-and-hypertrophy-via-%C3%AE-3-ar-nnos-no-activation
#3
Bin Wang, Ming Xu, Wenju Li, Xiaoli Li, Qiangsun Zheng, Xiaolin Niu
Aerobic exercise confers sustainable protection against cardiac hypertrophy and heart failure (HF). Nitric oxide synthase (NOS) and nitric oxide (NO) are known to play an important role in exercise-mediated cardioprotection, but the mechanism of NOS/NO stimulation during exercise remains unclear. The aim of this study is to determine the role of β3-adrenergic receptors (β3-ARs), NOS activation, and NO metabolites (nitrite and nitrosothiols) in the sustained cardioprotective effects of aerobic exercise. An HF model was constructed by transverse aortic constriction (TAC)...
2017: PloS One
https://www.readbyqxmd.com/read/28613837/artificial-off-riboswitches-that-downregulate-internal-ribosome-entry-without-hybridization-switches-in-a-eukaryotic-cell-free-translation-system
#4
Atsushi Ogawa, Hiroki Masuoka, Tsubasa Ota
We constructed novel artificial riboswitches that function in a eukaryotic translation system (wheat germ extract), by rationally implanting an in vitro-selected aptamer into the intergenic internal ribosome entry site (IRES) of Plautia stali intestine virus. These eukaryotic OFF-riboswitches (OFF-eRSs) ligand-dose-dependently downregulate IRES-mediated translation without hybridization switches, which typical riboswitches utilize for gene regulation. The hybridization-switch-free mechanism not only allows for easy design but also requires less energy for regulation, resulting in a higher switching efficiency than hybridization-switch-based OFF-eRSs provide...
June 14, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28604122/blood-stage-malaria-vaccines-post-genome-strategies-for-the-identification-of-novel-vaccine-candidates
#5
Edward H Ntege, Eizo Takashima, Masayuki Morita, Hikaru Nagaoka, Tomoko Ishino, Takafumi Tsuboi
An efficacious malaria vaccine is necessary to advance the current control measures towards malaria elimination. To-date, only RTS,S/AS01, a leading pre-erythrocytic stage vaccine completed phase 3 trials, but with an efficacy of 28-36% in children, and 18-26% in infants, that waned over time. Blood-stage malaria vaccines protect against disease, and are considered effective targets for the logical design of next generation vaccines to improve the RTS,S field efficacy. Therefore, novel blood-stage vaccine candidate discovery efforts are critical, albeit with several challenges including, high polymorphisms in vaccine antigens, poor understanding of targets of naturally protective immunity, and difficulties in the expression of high AT-rich plasmodial proteins...
June 19, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28602911/jaburetox-induced-toxic-effects-on-the-hemocytes-of-rhodnius-prolixus-hemiptera-reduviidae
#6
Natalia R Moyetta, Valquiria Broll, Ana Paula A Perin, Augusto F Uberti, Matheus V Coste Grahl, Fernanda Staniscuaski, Celia R Carlini, Leonardo L Fruttero
Jaburetox is a recombinant peptide derived from a Canavalia ensiformis urease that presents toxic effects upon several species of insects, phytopathogenic fungi and yeasts of medical importance. So far, no toxicity of Jaburetox to mammals has been shown. Previous reports have identified biochemical targets of this toxic peptide in insect models, although its mechanism of action is not completely understood. In this work, we aimed to characterize the effects of Jaburetox in hemolymphatic insect cells. For this purpose, the model insect and Chagas' disease vector Rhodnius prolixus was used...
June 8, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28595582/enhancing-the-quality-and-lipid-stability-of-chicken-nuggets-using-natural-antioxidants
#7
Muhammad Sajid Arshad, Ali Imran, Muhammad Tahir Nadeem, Muhammad Sohaib, Farhan Saeed, Faqir Muhammad Anjum, Joong-Ho Kwon, Shahzad Hussain
BACKGROUND: Current day consumers prefer natural antioxidants to synthetic antioxidants because they are more active. However, the activity generally depends on the specific condition and composition of food. The aim of this study was to investigate the effect of wheat germ oil and α-lipoic acid on the quality characteristics, antioxidant status, fatty acid profile, and sensory attributes of chicken nuggets. METHODS: Six types of diets were prepared for feeding the chickens to evaluate the quality of nuggets made from the leg meat of these experimental animals...
June 8, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28591780/position-dependent-effects-of-regioisomeric-methylated-adenine-and-guanine-ribonucleosides-on-translation
#8
Changjun You, Xiaoxia Dai, Yinsheng Wang
Reversible methylation of the N6 or N1 position of adenine in RNA has recently been shown to play significant roles in regulating the functions of RNA. RNA can also be alkylated upon exposure to endogenous and exogenous alkylating agents. Here we examined how regio-specific methylation at the hydrogen bonding edge of adenine and guanine in mRNA affects translation. When situated at the third codon position, the methylated nucleosides did not compromise the speed or accuracy of translation under most circumstances...
June 7, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28587523/defatted-wheat-germ-application-influence-on-cookies-properties-with-regard-to-its-particle-size-and-dough-moisture-content
#9
Jovana Petrović, Dušan Rakić, Aleksandar Fišteš, Biljana Pajin, Ivana Lončarević, Vladimir Tomović, Danica Zarić
The introduction of agro-food industry by-products rich in bioactive compounds represents major challenge in food industry sector. The influence of wheat germ particle size (<150 µm, 150-1000 µm, and 800-2000 µm), wheat germ content (5, 10, and 15%), and dough moisture content (20, 22, and 24%) on chemical, textural, and sensory characteristics of cookies was investigated using the Box-Behnken experimental design. The substitution of wheat flour with wheat germ increased the protein, fat, mineral, and fiber content of the cookies...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28586046/enhanced-effect-of-nuclear-localization-signal-peptide-during-ultrasound%C3%A2-targeted-microbubble-destruction%C3%A2-mediated-gene-transfection
#10
Sheng Cao, Qing Zhou, Jin-Ling Chen, Nan Jiang, Yi-Jia Wang, Qing Deng, Bo Hu, Rui-Qiang Guo
Ultrasound‑targeted microbubble destruction (UTMD) can promote the entry of plasmid DNA (pDNA) into the cell cytoplasm, by increasing the permeability of the cell membrane. But the transfection efficiency remains low due to inability of the pDNA to enter the nucleus. Various methods have been explored to improve the UTMD transfection efficiency, but with little success. In cells, the classic nuclear localization signal (cNLS) peptide is an amino acid sequence that signals proteins that are due for nuclear transport...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28567648/autophosphorylation-assays-using-plant-receptor-kinases-synthesized-in-cell-free-systems
#11
Keiichirou Nemoto, Akira Nozawa, Satoshi Yamanaka, Shunsuke Nomura, Kohki Kido, Tatsuya Sawasaki
The wheat germ cell-free protein synthesis system has a significant advantage for high-throughput production of eukaryotic multidomain proteins in a folded state. In this chapter, we describe two kinds of methods for performing autophosphorylation assay of plant receptor kinases (PRKs) by using the wheat cell-free system. One is an in vitro kinase assay performed using biotin-streptavidin affinity purification technology, and the other is a luminescence-based high-throughput assay for autophosphorylation analysis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28567641/cell-free-synthesis-of-plant-receptor-kinases
#12
Akira Nozawa, Keiichirou Nemoto, Shunsuke Nomura, Satoshi Yamanaka, Kohki Kido, Tatsuya Sawasaki
The wheat germ cell-free protein synthesis system has been used as a eukaryotic protein production system since it was first reported in 1964. Although initially the productivity of this system was not very high, it has now become one of the most versatile protein production systems, thanks to the enhancements made by several groups. In this chapter, we report a protein production method for plant receptor kinases using the wheat cell-free system. We describe a method for the preparation of a cell-free extract from wheat germ, the split-primer PCR method for preparation of transcription templates, and the bilayer cell-free protein synthesis method...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28539275/mucosal-transfer-of-wheat-germ-agglutinin-modified-lipid-polymer-hybrid-nanoparticles-for-oral-delivery-of-oridonin
#13
Ying Liu, Jinguang Liu, Jun Liang, Meiying Zhang, Zhe Li, Zhi Wang, Beilei Dang, Nianping Feng
Wheat germ agglutinin-modified lipid-polymer hybrid nanoparticles (WGA-LPNs) promote cellular uptake after oral delivery via receptor-mediated endocytosis and bioadhesion. Understanding the mucosal transport of WGA-LPNs would help to improve bioavailability and ensure therapeutic efficacy. In this study, WGA-LPNs interacted with mucin, forming larger agglomerates with intact core-shell structure. The interaction of WGA-LPNs with mucin improved enterocyte endocytosis in Caco-2 cells. An in situ intestinal diffusion study in mice confirmed that WGA-LPNs reached enterocytes and underwent endocytosis, despite interference from mucin...
May 21, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28535337/overall-structural-model-of-ns5a-protein-from-hepatitis-c-virus-and-modulation-by-mutations-confering-resistance-of-virus-replication-to-cyclosporin-a
#14
Aurelie Badillo, Véronique Receveur-Brechot, Stéphane Sarrazin, François-Xavier Cantrelle, Frédéric Delolme, Marie-Laure Fogeron, Jennifer Molle, Roland Montserret, Anja Bockmann, Ralf Bartenschlager, Volker Lohmann, Guy Lippens, Sylvie Ricard-Blum, Xavier Hanoulle, François Penin
Hepatitis C virus (HCV) nonstructural protein 5A (NS5A) is a RNA-binding phosphoprotein composed of a N-terminal membrane anchor (AH), a structured domain 1 (D1), and two intrinsically disordered domains (D2 and D3). The knowledge of the functional architecture of this multifunctional protein remains limited. We report here that NS5A-D1D2D3 produced in a wheat germ cell-free system is obtained under a highly phosphorylated state. Its NMR analysis revealed that these phosphorylations do not change the disordered nature of D2 and D3 domains but increase the number of conformers due to partial phosphorylations...
June 7, 2017: Biochemistry
https://www.readbyqxmd.com/read/28524834/wild-type-p53-induced-phosphatase-1-deficiency-exacerbates-myocardial-infarction-induced-ischemic-injury
#15
Ke-Mei Liu, Hai-Hong Zhang, Ya-Nan Wang, Lian-Mei Wang, Hong-Yu Chen, Cai-Feng Long, Lian-Feng Zhang, Hong-Bing Zhang, Hong-Bing Yan
BACKGROUND: Myocardial infarction (MI) is a major disease burden. Wild-type p53-induced phosphatase 1 (Wip1) has been studied extensively in the context of cancer and the regulation of different types of stem cells, but the role of Wip1 in cardiac adaptation to MI is unknown. We investigated the significance of Wip1 in a mouse model of MI. METHODS: The study began in June 2014 and was completed in July 2016. We compared Wip1-knockout (Wip1-KO) mice and wild-type (WT) mice to determine changes in cardiac function and survival in response to MI...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28521959/cancer-cell-death-induced-by-nanomagnetolectin
#16
Dina M M AlSadek, Haitham A Badr, Tamer A Al-Shafie, Sabry M El-Bahr, Motawa E El-Houseini, Leyla B Djansugurova, Chen-Zhong Li, Hafiz Ahmed
Magnetic nanoparticles represent a new paradigm for molecular targeting therapy in cancer. However, the transformative targeting potential of magnetic nanoparticles has been stymied by a key obstacle-safe delivery to specified target cells in vivo. As cancer cells grow under nutrient deprivation and hypoxic conditions and decorate cell surface with excessive sialoglycans, sialic acid binding lectins might be suitable for targeting cancer cells in vivo. Here we explore the potential of magnetic nanoparticles functionalized with wheat germ lectin (WGA) conjugate, so-called nanomagnetolectin, as apoptotic targetable agents for prostate cancer...
May 10, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28472984/rhinovirus-c-targets-ciliated-airway-epithelial-cells
#17
Theodor F Griggs, Yury A Bochkov, Sarmila Basnet, Thomas R Pasic, Rebecca A Brockman-Schneider, Ann C Palmenberg, James E Gern
BACKGROUND: The Rhinovirus C (RV-C), first identified in 2006, produce high symptom burdens in children and asthmatics, however, their primary target host cell in the airways remains unknown. Our primary hypotheses were that RV-C target ciliated airway epithelial cells (AECs), and that cell specificity is determined by restricted and high expression of the only known RV-C cell-entry factor, cadherin related family member 3 (CDHR3). METHODS: RV-C15 (C15) infection in differentiated human bronchial epithelial cell (HBEC) cultures was assessed using immunofluorescent and time-lapse epifluorescent imaging...
May 4, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28444133/increased-collagen-within-the-transverse-tubules-in-human-heart-failure
#18
David J Crossman, Xin Shen, Mia Jüllig, Michelle Munro, Yufeng Hou, Martin Middleditch, Darshan Shrestha, Amy Li, Sean Lal, Cristobal G Dos Remedios, David Baddeley, Peter N Ruygrok, Christian Soeller
Aims: In heart failure transverse-tubule (t-tubule) remodelling disrupts calcium release, and contraction. T-tubules in human failing hearts exhibit increased labelling by wheat germ agglutinin (WGA), a lectin that binds to the dystrophin-associated glycoprotein complex. We hypothesized changes in this complex may explain the increased WGA labelling and contribute to t-tubule remodelling in the failing human heart. In this study we sought to identify the molecules responsible for this increased WGA labelling...
April 20, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28422419/carbohydrate-analogue-microarrays-for-identification-of-lectin-selective-ligands
#19
Ji Young Hyun, Cheol Wan Park, Yanna Liu, Daeun Kwon, Seong-Hyun Park, Sungjin Park, Jaeyoung Pai, Injae Shin
Fifty-five mono- and disaccharide analogues were prepared and used for the construction of microarrays to uncover lectin-selective ligands. The microarray study showed that two disaccharide analogues, 28' and 44', selectively bind to Solanum tuberosum lectin (STL) and wheat germ agglutinin (WGA), respectively. Cell studies indicated that 28' and 44' selectively block the binding of STL and WGA to mammalian cells, unlike the natural ligand LacNAc, which suppresses binding of both STL and WGA to cells.
April 19, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28417422/selection-of-an-artificial-diet-for-laboratory-rearing-of-opogona-sacchari-lepidoptera-tineidae-bojer-1856
#20
A Coelho, J M Milanez, R de Andrade Moral, C G B Demétrio, J R P Parra
The banana moth Opogona sacchari (Bojer) (Lepidoptera: Tineidae) is a polyphagous pest that can cause serious damage, in particular to banana crops in southern Brazil. The insect is a quarantine pest in several countries, including Argentina, the main consumer market for bananas from southern Brazil. Little information is available about the biology and ecology of this moth, such as a suitable diet for laboratory rearing. In order to provide support for integrated pest management of the pest, this study furnished data for selecting two diets suitable for continuous laboratory rearing of O...
April 17, 2017: Neotropical Entomology
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