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https://www.readbyqxmd.com/read/28917743/selection-of-an-aptamer-against-muscovy-duck-parvovirus-for-highly-sensitive-rapid-visual-detection-by-label-free-aptasensor
#1
Taofeng Lu, Qin Ma, Wenzhuo Yan, Yuanzhi Wang, Yuanyuan Zhang, Lili Zhao, Hongyan Chen
Muscovy duck parvovirus (MDPV) causes high mortality and morbidity in ducks. This study investigated a novel aptamer-based, label-free aptasensor detection of MDPV. In this study, we developed an ssDNA aptamer using the filtration partition and lambda exonuclease method with an affinity-based monitor and counter-screening process. After 15 rounds of SELEX (systematic evolution of ligands by exponential enrichment), the ssDNA aptamer Apt-10, which specifically bound to MDPV with high affinity (Kd = 467nM) was successfully screened, and the aptamer was also found to be good specific to MDPV...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28916657/tenascin-c-and-integrin-%C3%AE-9-mediate-interactions-of-prostate-cancer-with-the-bone-microenvironment
#2
Rebeca San Martin, Ravi Pathak, Antrix Jain, Sung Yun Jung, Susan G Hilsenbeck, Maria C Piňa-Barba, Andrew G Sikora, Kenneth J Pienta, David R Rowley
Deposition of the extracellular matrix protein tenascin-C is part of the reactive stroma response, which has a critical role in prostate cancer progression. Here we report that tenascin-C is expressed in the bone endosteum and involved associated with formation of prostate bone metastases. Metastatic cells cultured on osteo-mimetic surfaces coated with tenascin-C exhibited enhanced adhesion and colony formation as mediated by integrin α9β1. Additionally, metastatic cells preferentially migrated and colonized tenascin-C-coated trabecular bone xenografts in a novel system that employed chorioallantoic membranes of fertilized chicken eggs as host...
September 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28916030/fellowship-candidate-selection-at-the-best-medical-center-a-novel-process
#3
Philip R Cohen
Dr. Ida Lystic completed her MD degree at the prestigious Harvey Medical School (which has since been renamed the Harvey Provider School) and her residency in internal medicine and gastroenterology fellowship at the OTHER (Owen T. Henry and Eugene Rutherford) Medical Center. She was subsequently hired as an assistant professor at the BEST (Byron Edwards and Samuel Thompson) Medical Center in 2015. After eventually completing an extensive list of employment requirements, she was able to begin seeing patients...
September 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28901845/a-review-of-patents-on-therapeutic-potential-and-delivery-of-hydrogen-sulfide
#4
Richa Verma, Yumna Akhtar, Somnath Singh
Hydrogen sulfide (H2S) is a colorless gas with a characteristic smell of rotten eggs. Once only thought of as a toxic gas, evidence now shows that H2S plays major roles in pathological and physiological activities. These roles are being utilized to treat diseases and disorders ranging from hypertension, inflammation, edema, cardiovascular issues, chronic pain, cancer, and many more. Challenges facing the use of H2S currently involve achieving the optimum therapeutic concentrations, synthesizing chemically and physiologically stable donors, and developing clinically appropriate delivery systems...
September 11, 2017: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/28886878/divergently-expressed-gene-identification-and-interaction-prediction-of-long-noncoding-rna-and-mrna-involved-in-duck-reproduction
#5
Jindong Ren, Xue Du, Tao Zeng, Li Chen, Junda Shen, Lizhi Lu, Jianhong Hu
Long noncoding RNAs (lncRNAs) and divergently expressed genes exist widely in different tissues of mammals and birds, in which they are involved in various biological processes. However, there is limited information on their role in the regulation of normal biological processes during differentiation, development, and reproduction in birds. In this study, whole transcriptome strand-specific RNA sequencing of the ovary from young ducks (60days), first-laying ducks (160days), and old ducks, i.e., ducks that stopped laying eggs (490days) was performed...
October 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28884645/the-chicken-and-egg-development-of-political-opinionsthe-roles-of-genes-social-status-ideology-and-information
#6
Beattie J D Peter
Twin studies have revealed political ideology to be partially heritable. Neurological research has shown that ideological differences are reflected in brain structure and response, suggesting a direct genotype-phenotype link. Social and informational environments, however, also demonstrably affect brain structure and response. This leads to a "chicken-and-egg" question: do genes produce brains with ideological predispositions, causing the preferential absorption of consonant information and thereby forming an ideology, or do social and informational environments do most of the heavy lifting, with genetic evidence the spurious artifact of outdated methodology? Or are both inextricably intertwined contributors? This article investigates the relative contributions of genetic and environmental factors to ideological development using a role-play experiment investigating the development of opinions on a novel political issue...
2017: Politics and the Life Sciences: the Journal of the Association for Politics and the Life Sciences
https://www.readbyqxmd.com/read/28880872/microtubule-actin-crosslinking-factor-1-macf1-domain-function-in-balbiani-body-dissociation-and-nuclear-positioning
#7
Matias Escobar-Aguirre, Hong Zhang, Allison Jamieson-Lucy, Mary C Mullins
Animal-vegetal (AV) polarity of most vertebrate eggs is established during early oogenesis through the formation and disassembly of the Balbiani Body (Bb). The Bb is a structure conserved from insects to humans that appears as a large granule, similar to a mRNP granule composed of mRNA and proteins, that in addition contains mitochondria, ER and Golgi. The components of the Bb, which have amyloid-like properties, include germ cell and axis determinants of the embryo that are anchored to the vegetal cortex upon Bb disassembly...
September 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28794984/seasonality-richness-and-prevalence-of-intestinal-parasites-of-three-neotropical-primates-alouatta-seniculus-ateles-hybridus-and-cebus-versicolor-in-a-fragmented-forest-in-colombia
#8
Silvia Rondón, Mario Ortiz, Cielo León, Nelson Galvis, Andrés Link, Camila González
Studies on parasites infecting non-human primates are essential to better understand the potential threat to humans of zoonoses transmission, particularly under the current processes of pervasive land use change and biodiversity loss. The natural ecosystems in the Middle Magdalena river basin in Colombia have suffered a dramatic reduction and transformation into pastures and agroindustrial monocultures, threatening their biodiversity, and probably affecting the dynamics between parasites and their hosts, as well as altering the disease transmission cycles between wild populations and humans...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28765643/mir-202-5p-is-a-novel-germ-plasm-specific-microrna-in-zebrafish
#9
Jing Zhang, Wei Liu, Yilin Jin, Peng Jia, Kuntong Jia, Meisheng Yi
Gametogenesis is a complicated biological process by which sperm and egg are produced for genetic transmission between generations. In many animals, the germline is segregated from the somatic lineage in early embryonic development through the specification of primordial germ cells (PGCs), the precursors of gametes for reproduction and fertility. In some species, such as fruit fly and zebrafish, PGCs are determined by the maternally provided germ plasm which contains various RNAs and proteins. Here, we identified a germ plasm/PGC-specific microRNA miR-202-5p for the first time in zebrafish...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747474/male-female-relatedness-at-specific-snp-linkage-groups-influences-cryptic-female-choice-in-chinook-salmon-oncorhynchus-tshawytscha
#10
Cornelia Geßner, Sheri L Johnson, Paul Fisher, Shannon Clarke, Kim Rutherford, Jane Symonds, Neil J Gemmell
In a range of taxa, the relatedness between mates influences both pre- and post-mating processes of sexual selection. However, relatively little is known about the genetic loci facilitating such a bias, with the exception of the major histocompatibility complex. Here, we performed tightly controlled replicated in vitro fertilization trials to explore the impact of relatedness on two possible mechanisms of cryptic female choice (CFC) in Chinook salmon (Oncorhynchus tshawytscha). We tested (i) whether relatedness of mates, assessed using 682 single nucleotide polymorphisms (SNPs) on 29 SNP-linkage groups (LGs), biases a male's sperm velocity in ovarian fluid (a parameter previously shown to predict male fertilization success), and (ii) whether relatedness of mates governs fertilization success via other mechanisms, probably via sperm-egg interactions...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28740415/the-extracellular-matrix-of-eggshell-displays-anti-inflammatory-activities-through-nf-%C3%AE%C2%BAb-in-lps-triggered-human-immune-cells
#11
Tram T Vuong, Sissel B Rønning, Henri-Pierre Suso, Ralf Schmidt, Kristian Prydz, Marlene Lundström, Anders Moen, Mona E Pedersen
Avian eggshell membrane (ESM) is a natural biomaterial that has been used as an alternative natural bandage on burned and cut skin injuries for >400 years in Asian countries, and is available in large quantities from egg industries. Our aim was to characterize ESM that was separated and processed from egg waste, and to study whether this material possesses anti-inflammatory properties, making it suitable as an ingredient in industrial production of low cost wound healing products. Our results show that the processed ESM particles retain a fibrous structure similar to that observed for the native membrane, and contain collagen, and carbohydrate components such as hyaluronic acid and sulfated glycosaminoglycans, as well as N-glycans, mostly with uncharged structures...
2017: Journal of Inflammation Research
https://www.readbyqxmd.com/read/28727079/detection-of-dietary-dna-protein-and-glyphosate-in-meat-milk-and-eggs
#12
A L Van Eenennaam, A E Young
Products such as meat, milk, and eggs from animals that have consumed genetically engineered (GE) feed are not currently subject to mandatory GE labeling requirements. Some voluntary "non-genetically modified organism" labeling has been associated with such products, indicating that the animals were not fed GE crops, as there are no commercialized GE food animals. This review summarizes the available scientific literature on the detection of dietary DNA and protein in animal products and briefly discusses the implications of mandatory GE labeling for products from animals that have consumed GE feed...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28715428/cip29-is-phosphorylated-following-activation-of-the-dna-damage-response-in-xenopus-egg-extracts
#13
Janet Holden, Elaine M Taylor, Howard D Lindsay
Acting through a complex signalling network, DNA lesions trigger a range of cellular responses including DNA repair, cell cycle arrest, altered gene expression and cell death, which help to limit the mutagenic effects of such DNA damage. RNA processing factors are increasingly being recognised as important targets of DNA damage signalling, with roles in the regulation of gene expression and also more directly in the promotion of DNA repair. In this study, we have used a Xenopus laevis egg extract system to analyse the DNA damage-dependent phosphorylation of a putative RNA export factor, Cip29...
2017: PloS One
https://www.readbyqxmd.com/read/28700597/differentially-expressed-micrornas-in-diapausing-versus-hcl-treated-bombyx-embryos
#14
Wentao Fan, Yangsheng Zhong, Mingyue Qin, Bimin Lin, Fangyan Chen, Huichao Yan, Wenchu Li, Jianrong Lin
Differentially expressed microRNAs were detected to explore the molecular mechanisms of diapause termination. The total small RNA of diapause-destined silkworm eggs and HCl-treated eggs was extracted and then sequenced using HiSeq high-throughput method. 44 novel miRNAs were discovered. Compared to those in the diapause-destined eggs, 61 miRNAs showed significant changes in the acid-treated eggs, with 23 being up-regulated and 38 being down-regulated. The potential target genes of differentially expressed miRNAs were predicted by miRanda...
2017: PloS One
https://www.readbyqxmd.com/read/28675377/investigation-of-novel-superparamagnetic-ni0-5zn0-5fe2o4-albumen-nanoparticles-for-controlled-delivery-of-anticancer-drug
#15
Mohd Qasim, Khushnuma Asghar, Gangappa Dharmapuri, D Das
In the present work, multifunctional Ni0.5Zn0.5Fe2O4@albumen (NZF@Alb) and doxorubicin-loaded Ni0.5Zn0.5Fe2O4@albumen (NZF@Alb-Dox) core-shell nanoparticles have been prepared by a green and simple method using inexpensive chicken egg albumen and have been characterized for different physiochemical properties. The structural, morphological, thermal, and magnetic properties of the prepared nanoparticles have been investigated by an x-ray diffractometer, high-resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy, Fourier-transformed infrared, thermogravimetric analysis, and vibrating sample magnetometer techniques...
July 4, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28663368/betaine-is-accumulated-via-transient-choline-dehydrogenase-activation-during-mouse-oocyte-meiotic-maturation
#16
COMPARATIVE STUDY
Taylor McClatchie, Megan Meredith, Mariame O Ouédraogo, Sandy Slow, Michael Lever, Mellissa R W Mann, Steven H Zeisel, Jacquetta M Trasler, Jay M Baltz
Betaine (N,N,N-trimethylglycine) plays key roles in mouse eggs and preimplantation embryos first in a novel mechanism of cell volume regulation and second as a major methyl donor in blastocysts, but its origin is unknown. Here, we determined that endogenous betaine was present at low levels in germinal vesicle (GV) stage mouse oocytes before ovulation and reached high levels in the mature, ovulated egg. However, no betaine transport into oocytes was detected during meiotic maturation. Because betaine can be synthesized in mammalian cells via choline dehydrogenase (CHDH; EC 1...
August 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28659876/improvement-strategies-cost-effective-production-and-potential-applications-of-fungal-glucose-oxidase-god-current-updates
#17
REVIEW
Manish K Dubey, Andleeb Zehra, Mohd Aamir, Mukesh Meena, Laxmi Ahirwal, Siddhartha Singh, Shruti Shukla, Ram S Upadhyay, Ruben Bueno-Mari, Vivek K Bajpai
Fungal glucose oxidase (GOD) is widely employed in the different sectors of food industries for use in baking products, dry egg powder, beverages, and gluconic acid production. GOD also has several other novel applications in chemical, pharmaceutical, textile, and other biotechnological industries. The electrochemical suitability of GOD catalyzed reactions has enabled its successful use in bioelectronic devices, particularly biofuel cells, and biosensors. Other crucial aspects of GOD such as improved feeding efficiency in response to GOD supplemental diet, roles in antimicrobial activities, and enhancing pathogen defense response, thereby providing induced resistance in plants have also been reported...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28571695/influenza-viruses-production-evaluation-of-a-novel-avian-cell-line-duckcelt%C3%A2-t17
#18
Emma Petiot, Anaïs Proust, Aurélien Traversier, Laurent Durous, Frédéric Dappozze, Marianne Gras, Chantal Guillard, Jean-Marc Balloul, Manuel Rosa-Calatrava
The influenza vaccine manufacturing industry is looking for production cell lines that are easily scalable, highly permissive to multiple viruses, and more effective in term of viral productivity. One critical characteristic of such cell lines is their ability to grow in suspension, in serum free conditions and at high cell densities. Influenza virus causing severe epidemics both in human and animals is an important threat to world healthcare. The repetitive apparition of influenza pandemic outbreaks in the last 20years explains that manufacturing sector is still looking for more effective production processes to replace/supplement embryonated egg-based process...
May 29, 2017: Vaccine
https://www.readbyqxmd.com/read/28544760/a-novel-pattern-of-yolk-processing-in-developing-snake-eggs-colubridae-lampropeltini-and-its-functional-and-evolutionary-implications
#19
Kathryn G Powers, Daniel G Blackburn
Early amniotic vertebrates evolved large-yolked eggs that permitted production of well-developed, terrestrial hatchlings. This reproductive pattern required new mechanisms for cellularizing the yolk and mobilizing it for embryonic use. In birds, cells that line the yolk sac cavity phagocytose and digest the yolk material, a pattern that is commonly assumed to be universal among oviparous amniotes. However, recent evidence challenges the assumption that all squamate reptiles conform to the avian developmental pattern...
May 24, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28528111/protection-of-%C3%AE-carotene-from-chemical-degradation-in-emulsion-based-delivery-systems-using-antioxidant-interfacial-complexes-catechin-egg-white-protein-conjugates
#20
Luping Gu, Yujie Su, Mengqi Zhang, Cuihua Chang, Junhua Li, David Julian McClements, Yanjun Yang
The aim of the present study was to fabricate catechin-egg white protein (CT-EWP) conjugates as novel food-grade antioxidant emulsifiers designed to improve the physicochemical stability of β-carotene (BC) emulsions. CT-EWP conjugates were synthesized using free radical grafting, and the formation of conjugates was confirmed by electrophoresis and liquid chromatography-mass spectrometry. The physicochemical stability of BC emulsions was characterized by measuring alterations in particle size, ζ-potential and BC retention...
June 2017: Food Research International
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